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"/images/banner/s5.jpg"; var randomBgIndex = Math.round( Math.random() * 4 ); //输出随机的背景图 document.write('<style>.banner{background:url(' + bodyBgs[randomBgIndex] + ') no-repeat 50% bottom}</style>'); //]]> </script> <section> <div class="banner" style="height:160px;"> </div> </section> <!-- 面包屑导航开始 --> <div class="container "> <nav class="sub_menu"> <ol class="breadcrumb"><span class="glyphicon glyphicon-list"></span> <li><a href="/">网站首页</a></li> <li><a title="技术文章" href="/bethel/NC">技术文章</a></li> <li><a title="数控文章" href="/bethel/news">数控文章</a></li> </ol> </nav> </div> <!--/sub_menu--><!-- 面包屑导航结束 --> <!-- 页面标题开始 --> <div class="title"> <h3><a>关于MAG加工中心故障特点探析<small></small></a></h3> </div> <!-- 页面标题结束 --> <hr class="featurette-divider"> <!-- 中部开始 --> <div class="container"> <!-- 正文 --> <div class="lead" id="print"> <p> 机床在投人使用后，因为自身系统和外界环境 作用会不间断地发生各种各样的故障。对加工中心 的故障特点，人们会根据自己的主观接触和认识会 有不同的看法。有人认为电控系统是加工中心的故 障高发区，也有人认为机械故障占加工中心的主要 部分。对每个观点，人们都会有自己的依据。本文根 据上汽通用五菱发动机制造部加工中心从2010年 到2012年的故障数据,分别从故障部位和部位失效 模式探讨了加工中心的故障特点，并提出针对性的 方法以提高机床的可靠性本文讨论的加工中心为MAG的卧式加工中心， 由电气系统、液压系统、冷却系统、润滑系统、气动系 统、机床夹具、机床防护装置组成，采用31i-AFANUC 数控系统。</p> <p> </p> <p> 1 MAG加工中心故障部位分布</p> <p> MAG加工中心故障部位分布见表1。</p> <div> <div> <table cellspacing="0" cellpadding="0" hspace="0" vspace="0" width="249" align="center"> <tbody> <tr> <td valign="top" align="left" style="padding-top:0cm;padding-right:0cm; padding-bottom:0cm;padding-left:0cm"> <p class="60" style="line-height:13.0pt;mso-line-height-rule:exactly; background:transparent;mso-element:frame;mso-element-frame-width:186.7pt; mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly">表1 <span class="6CordiaUPC"><span lang="EN-US" style="font-size:13.0pt">MAG</span></span>加工中心故陣部位分布</p> </td> </tr> </tbody> </table> </div> </div> <div><!--[if !supportTextWrap]--><br clear="ALL" /> <!--[endif]--> <div> <div align="center"> <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="313" style="border-collapse:collapse;mso-table-layout-alt:fixed;mso-table-overlap: never;mso-yfti-tbllook:1184;mso-padding-alt:0cm .5pt 0cm .5pt"> <tbody> <tr style="mso-yfti-irow:0;mso-yfti-firstrow:yes;height:18.85pt;mso-height-rule: exactly"> <td width="52" style="width: 39pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 18.85pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:9.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">序号</span></span><o:p></o:p></p> </td> <td width="98" style="width: 73.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 18.85pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">故障部位</span></span><o:p></o:p></p> </td> <td width="87" style="width: 65.6pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 18.85pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">故障次数</span></span><o:p></o:p></p> </td> <td width="76" style="width: 56.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 18.85pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:11.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">故障比例</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:1;height:17.4pt;mso-height-rule:exactly"> <td width="52" style="width: 39pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.4pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">1</span></span><o:p></o:p></p> </td> <td width="98" style="width: 73.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.4pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">电控系统</span></span><o:p></o:p></p> </td> <td width="87" style="width: 65.6pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.4pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">133</span></span><o:p></o:p></p> </td> <td width="76" style="width: 56.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.4pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:11.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:7.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family: MingLiU">24.54%</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:2;height:17.8pt;mso-height-rule:exactly"> <td width="52" style="width: 39pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">2</span></span><o:p></o:p></p> </td> <td width="98" style="width: 73.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">换刀系统</span></span><o:p></o:p></p> </td> <td width="87" style="width: 65.6pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">25</span></span><o:p></o:p></p> </td> <td width="76" style="width: 56.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:11.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:7.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family: MingLiU">4.61%</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:3;height:17.4pt;mso-height-rule:exactly"> <td width="52" style="width: 39pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.4pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">3</span></span><o:p></o:p></p> </td> <td width="98" style="width: 73.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.4pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">主轴系统</span></span><o:p></o:p></p> </td> <td width="87" style="width: 65.6pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.4pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">27</span></span><o:p></o:p></p> </td> <td width="76" style="width: 56.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.4pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:11.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:7.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family: MingLiU">4.98%</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:4;height:17.8pt;mso-height-rule:exactly"> <td width="52" style="width: 39pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">4</span></span><o:p></o:p></p> </td> <td width="98" style="width: 73.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">工装夹具</span></span><o:p></o:p></p> </td> <td width="87" style="width: 65.6pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span lang="EN-US" style="font-size:7.0pt;mso-fareast-font-family:MingLiU;mso-ansi-language: EN-US;mso-fareast-language:EN-US;mso-bidi-language:EN-US">2J8</span></span><o:p></o:p></p> </td> <td width="76" style="width: 56.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:11.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:7.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family: MingLiU">40.22%</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:5;height:17.8pt;mso-height-rule:exactly"> <td width="52" style="width: 39pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">5</span></span><o:p></o:p></p> </td> <td width="98" style="width: 73.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">液压系统</span></span><o:p></o:p></p> </td> <td width="87" style="width: 65.6pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">7</span></span><o:p></o:p></p> </td> <td width="76" style="width: 56.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:11.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:7.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family: MingLiU">1.29%</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:6;height:18.2pt;mso-height-rule:exactly"> <td width="52" style="width: 39pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 18.2pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">6</span></span><o:p></o:p></p> </td> <td width="98" style="width: 73.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 18.2pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">冷却系统</span></span><o:p></o:p></p> </td> <td width="87" style="width: 65.6pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 18.2pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">61</span></span><o:p></o:p></p> </td> <td width="76" style="width: 56.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 18.2pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:11.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:7.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family: MingLiU">11.25%</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:7;height:17.8pt;mso-height-rule:exactly"> <td width="52" style="width: 39pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">7</span></span><o:p></o:p></p> </td> <td width="98" style="width: 73.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">润滑系统</span></span><o:p></o:p></p> </td> <td width="87" style="width: 65.6pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">0</span></span><o:p></o:p></p> </td> <td width="76" style="width: 56.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:11.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:7.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family: MingLiU">0.00%</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:8;height:17.8pt;mso-height-rule:exactly"> <td width="52" style="width: 39pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">8</span></span><o:p></o:p></p> </td> <td width="98" style="width: 73.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">气动系统</span></span><o:p></o:p></p> </td> <td width="87" style="width: 65.6pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="MsoNormal" align="center" style="text-align:center;mso-element:frame; mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical: paragraph;mso-element-anchor-horizontal:column;mso-element-left:center; mso-element-top:.05pt;mso-height-rule:exactly"><span style="font-size:5.0pt"> </span></p> </td> <td width="76" style="width: 56.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:11.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:7.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family: MingLiU">0.18%</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:9;height:17.8pt;mso-height-rule:exactly"> <td width="52" style="width: 39pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">9</span></span><o:p></o:p></p> </td> <td width="98" style="width: 73.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">轴伺服系统</span></span><o:p></o:p></p> </td> <td width="87" style="width: 65.6pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">24</span></span><o:p></o:p></p> </td> <td width="76" style="width: 56.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.8pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:11.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:7.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family: MingLiU">4.43%</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:10;height:17.4pt;mso-height-rule:exactly"> <td width="52" style="width: 39pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 17.4pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">10</span></span><o:p></o:p></p> </td> <td width="98" style="width: 73.7pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.4pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">机床防护</span></span><o:p></o:p></p> </td> <td width="87" style="width: 65.6pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.4pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">46</span></span><o:p></o:p></p> </td> <td width="76" style="width: 56.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 17.4pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:11.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:7.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family: MingLiU">8.49%</span></span><o:p></o:p></p> </td> </tr> <tr style="mso-yfti-irow:11;mso-yfti-lastrow:yes;height:19.2pt;mso-height-rule: exactly"> <td width="52" style="width: 39pt; border-style: solid none; border-top-color: windowtext; border-top-width: 1pt; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 19.2pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="MsoNormal" align="center" style="text-align:center;mso-element:frame; mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical: paragraph;mso-element-anchor-horizontal:column;mso-element-left:center; mso-element-top:.05pt;mso-height-rule:exactly"><span style="font-size:5.0pt"> </span></p> </td> <td width="98" style="width: 73.7pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 19.2pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:12.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">总数</span></span><o:p></o:p></p> </td> <td width="87" style="width: 65.6pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 19.2pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-bottom:0cm;margin-bottom:.0001pt; text-align:center;text-indent:0cm;line-height:7.0pt;mso-line-height-rule: exactly;background:transparent;mso-element:frame;mso-element-frame-width: 186.7pt;mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family:MingLiU">542</span></span><o:p></o:p></p> </td> <td width="76" style="width: 56.8pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 19.2pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:11.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:7.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:186.7pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="2TimesNewRoman"><span style="font-size:7.0pt;mso-fareast-font-family: MingLiU">100.00%</span></span><o:p></o:p></p> </td> </tr> </tbody> </table> </div> </div> <!--[if !supportTextWrap]--><br clear="ALL" /> <!--[endif]--></div> <!--[if !supportTextWrap]--> <!--[endif]--> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; background: transparent;"><span style="line-height: 19.2px;"> 从表1的数据可以看出，工装夹具故障所占的 比例最大，为40.22 %，其次是电控系统为24.54 %。 工装夹具作为定位系统，直接与工件进行接触,所处环境恶劣，运动元件组成的系统复杂，因此不难 解释工装夹具故障率高的问题。工装夹具故障主要 体现在定位失效。根据现场数据显示,夹具越复杂， 故障率越高。夹具复杂程度源于工件的定位要求。工 装夹具定位是否可靠直接影响工件的加工质量。工 件质量是评判机床加工能力的关键标准。因此，保证 工装夹具的稳定性，就能够有效提高工件质量的稳 定性。</span></p> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; background: transparent;"><span style="line-height: 19.2px;"> 工装夹具与工件直接接触，会使工装夹具元件 产生断裂、变形、表面磨损等问题。控制质量,就必须 控制夹具的定位元件。MAG机床关键定位元件均采 用合金材料且表面硬度要求高。定位元件直接与工 件接触,经过一段时间，定位元件会磨损。实现定位 的执行元件主要是各类夹紧头与油缸。有翻转夹具 的工位故障率相对其他没有翻转夹具的立式夹具要 高得多。从翻转夹具到卧式夹具，缸体夹歪的故障造 成的后果很严重，夹紧头和油缸都会断裂和变形。</span></p> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; background: transparent;"><span style="line-height: 19.2px;"> MAG机床用到翻转夹具的有三个工位。从统计 的数据看，这三个工位故障频次最高。MAG的上料翻 转夹具结构相对简单，依靠一个锥形杆在夹紧过程 进行自定位，同时左右向依靠一个限位块进行定位。 翻转定位的稳定性依赖工件本身以及夹具上的对中 装置。根据数据分析，工件夹歪具体原因有如下几点： 夹具定位零部件损坏故障；</span></p> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; background: transparent;"><span style="line-height: 19.2px;"> 夹具机构松动；</span></p> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; background: transparent;"><span style="line-height: 19.2px;"> 夹具机构卡死；</span></p> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; background: transparent;"><span style="line-height: 19.2px;"> 传感装置误感应；</span></p> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; background: transparent;"><span style="line-height: 19.2px;"> 工件本身问题。查看MAXIMO系统故障记录， 发现由于夹具零部件损坏导致的工件夹歪占少部分。</span></p> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; background: transparent;"><span style="line-height: 19.2px;"> 工件定位的好坏，主要依靠气隙传感器的检测 功能。气隙传感器能够将泄漏的气流量转换成间隙 值，使我们能够直观的判断工件定位情况。理论上，工件必须在X/Y/Z/U/V/W六个自由度上都受到约束。 当工件受力产生变化时，工件离开定位面，故障随之 产生。工件在加工过程中的受力是一个动态的过程。 液压夹具对工件的定位是相对稳定的。加工过程，刀 具切削工件时，力的大小和方向均在变化。液压夹具 零部件的损坏、磨损、松动都会导致工件加工过程中 偏移。其中零部件损坏和松动是主要因素。</span></p> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; background: transparent;"><span style="line-height: 19.2px;"> 电气控制系统行驶控制的功能，协调着各个部 件的有序运动。电控系统包括硬件和软件两部分。电 气系统产生的故障往往是因硬件上的问题。电控系 统的故障的特点是查找原因困难，导致故障的原因 简单。从故障数据可以看到，电气故障的主因是电气 元器件损坏。损坏形式一般为触点接触不良。由于机 床本身振动，线路接头也会有松脱问题。机床环境相 对恶劣，线路易受到腐蚀以及扯断。MAG机床电气方 面已做得比较成熟，电气系统相对稳定。</span></p> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; background: transparent;"><span style="line-height: 19.2px;"> </span></p> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; background: transparent;"><span style="line-height: 19.2px;"> 2MAG加工中心故障模式分布</span></p> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; background: transparent;"><span style="line-height: 19.2px;"> 加工中心功能失效模式有多种，如零部件损坏、 零部件功能失效、机构松动卡死、流体泄露、误报警 等。零部件功能失效定义为能够通过调整性处理恢 复零部件的功能的模式。调整型故障是指零部件使 用一段时间后会变化，变化导致偏离要求范围，通过 调整，能够恢复功能的故障，如液压电磁阀内控制压 力的弹簧。相反，损坏型故障是元件已丧失其功能， 无法进行调整的故障。调整型故障往往比损坏型故 障复杂程度大。根据数据统计，得出以下表2所示的 加工中心故障模式分布。</span></p> <div> <div> <table cellspacing="0" cellpadding="0" hspace="0" vspace="0" width="272" align="center"> <tbody> <tr> <td valign="top" align="left" style="padding-top:0cm;padding-right:0cm; padding-bottom:0cm;padding-left:0cm"> <p class="60" style="line-height:13.0pt;mso-line-height-rule:exactly; background:transparent;mso-element:frame;mso-element-frame-width:204.25pt; mso-element-wrap:no-wrap-beside;mso-element-anchor-vertical:paragraph; mso-element-anchor-horizontal:column;mso-element-left:center;mso-element-top: .05pt;mso-height-rule:exactly"><span class="60pt">表2 </span><span class="6CordiaUPC"><span lang="EN-US" style="font-size:13.0pt">MAG</span></span><span class="60pt">加工中心故障模式分布</span></p> <div align="center"> <table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="342" style="border-collapse:collapse;mso-table-layout-alt:fixed;mso-table-overlap: never;mso-yfti-tbllook:1184;mso-padding-alt:0cm .5pt 0cm .5pt"> <tbody> <tr style="mso-yfti-irow:0;mso-yfti-firstrow:yes;height:23.5pt;mso-height-rule: exactly"> <td width="51" style="width: 38.35pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 23.5pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:7.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">序号</span></span></p> </td> <td width="137" style="width: 102.85pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.5pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">故障模式</span></span></p> </td> <td width="78" style="width: 58.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.5pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">故障次数</span></span></p> </td> <td width="76" style="width: 56.65pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.5pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">故障比例</span></span></p> </td> </tr> <tr style="mso-yfti-irow:1;height:22.05pt;mso-height-rule:exactly"> <td width="51" style="width: 38.35pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 22.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:7.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">1</span></span></p> </td> <td width="137" style="width: 102.85pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 22.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">机械零部件损坏</span></span></p> </td> <td width="78" style="width: 58.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 22.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">38</span></span></p> </td> <td width="76" style="width: 56.65pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 22.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">19.00%</span></span></p> </td> </tr> <tr style="mso-yfti-irow:2;height:22.55pt;mso-height-rule:exactly"> <td width="51" style="width: 38.35pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:7.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">2</span></span></p> </td> <td width="137" style="width: 102.85pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">机械零部件功能失效</span></span></p> </td> <td width="78" style="width: 58.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">36</span></span></p> </td> <td width="76" style="width: 56.65pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">18.00%</span></span></p> </td> </tr> <tr style="mso-yfti-irow:3;height:22.05pt;mso-height-rule:exactly"> <td width="51" style="width: 38.35pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 22.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:7.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">3</span></span></p> </td> <td width="137" style="width: 102.85pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 22.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">电气元件接触不良</span></span></p> </td> <td width="78" style="width: 58.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 22.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">20</span></span></p> </td> <td width="76" style="width: 56.65pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 22.05pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">10.00%</span></span></p> </td> </tr> <tr style="mso-yfti-irow:4;height:23.0pt;mso-height-rule:exactly"> <td width="51" style="width: 38.35pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 23pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:7.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">4</span></span></p> </td> <td width="137" style="width: 102.85pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">电气元件损坏</span></span></p> </td> <td width="78" style="width: 58.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">12</span></span></p> </td> <td width="76" style="width: 56.65pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">6.00%</span></span></p> </td> </tr> <tr style="mso-yfti-irow:5;height:22.55pt;mso-height-rule:exactly"> <td width="51" style="width: 38.35pt; border-style: solid none none; border-top-color: windowtext; border-top-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:7.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">5</span></span></p> </td> <td width="137" style="width: 102.85pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">机构松动卡死</span></span></p> </td> <td width="78" style="width: 58.8pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">94</span></span></p> </td> <td width="76" style="width: 56.65pt; border-style: solid none none solid; border-top-color: windowtext; border-top-width: 1pt; border-left-color: windowtext; border-left-width: 1pt; padding: 0cm 0.5pt; height: 22.55pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">47.00%</span></span></p> </td> </tr> <tr style="mso-yfti-irow:6;mso-yfti-lastrow:yes;height:23.85pt;mso-height-rule: exactly"> <td width="51" style="width: 38.35pt; border-style: solid none; border-top-color: windowtext; border-top-width: 1pt; border-bottom-color: windowtext; border-bottom-width: 1pt; padding: 0cm 0.5pt; height: 23.85pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="MsoNormal" align="center" style="text-align:center;mso-element:frame; mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span style="font-size:5.0pt"> </span></p> </td> <td width="137" style="width: 102.85pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.85pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">总数</span></span></p> </td> <td width="78" style="width: 58.8pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.85pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">200</span></span></p> </td> <td width="76" style="width: 56.65pt; border-style: solid none solid solid; border-top-color: windowtext; border-bottom-color: windowtext; border-left-color: windowtext; border-top-width: 1pt; border-bottom-width: 1pt; border-left-width: 1pt; padding: 0cm 0.5pt; height: 23.85pt; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;"> <p class="20" align="center" style="margin-top:0cm;margin-right:0cm;margin-bottom: 0cm;margin-left:10.0pt;margin-bottom:.0001pt;text-align:center;text-indent: 0cm;line-height:6.0pt;mso-line-height-rule:exactly;background:transparent; mso-element:frame;mso-element-frame-width:204.25pt;mso-element-wrap:no-wrap-beside; mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:column; mso-element-left:center;mso-element-top:.05pt;mso-height-rule:exactly"><span class="26pt"><span style="font-size:6.0pt">100.00%</span></span></p> </td> </tr> </tbody> </table> </div> </td> </tr> </tbody> </table> </div> </div> <p class="30" align="left" style="margin-top: 0cm; text-indent: 24pt; line-height: 14.4pt; background: transparent;"> </p> <p class="30" style="margin-top: 6.15pt; text-align: justify; text-indent: 23pt; background: transparent;"><span style="line-height: 19.2px;"> 从表2可以看出，机构的松动和卡死占失效模 式的47 %，与上节分析的夹具故障能够相对应。机构 松动来源于振动。机构松动主要是固定螺栓的松动。 通过减少因振动导致的机构松动，能够极大的提高 机床的稳定性。目前常用的防松方法有三种:摩擦防 松、机械防松和永久防松。机械防松和摩擦防松称为 可拆卸防松，而永久防松称为不可拆卸防松。常用的 永久防松有:点焊、铆接、粘合等。这种方法在拆卸时 大多要破坏螺纹紧固件,无法重复使用。故机械防松 和摩擦防松成为机床常用的防松方法。MAG机床夹 具主要依靠内六角螺栓和销钉进行紧固，这种方式 相对可靠。没有打销固定的机构，易受振动影响，故 给固定螺钉增加螺纹胶以及增加防送垫圈可有效减 少因机构松动产生的故障。</span></p> <p class="30" style="margin-top: 6.15pt; text-align: justify; text-indent: 23pt; background: transparent;"><span style="line-height: 19.2px;"> 机械零部件功能失效与电气元件接触不良定义 为可通过调整解决的故障模式。这两种失效模式占 28%。此种故障具有一定的规律性。要有效控制此类 故障，就必须依元件的运行规律进行一些预防性维 修。当前，我们依据经验以及元部件的使用规律，定 期进行调整性的作业。通过此种作业，能够有效预防 此种故障的发生。预防性维修系统的建立需要不断 的积累经验和积累理论知识。</span></p> <p class="30" style="margin-top: 6.15pt; text-align: justify; text-indent: 23pt; background: transparent;"><span style="line-height: 19.2px;"> 机械零部件损坏和电气元件损坏同属不可调整 的失效模式。维护设备，保证设备能够正常运作，备 件的供应必不可少。一个完善的备件供应系统能够 把机床故障停线的损失降到最低。一些备件的损坏 具有一定的规律，因此，依照规律，我们可定期更换 备件,防患于未然。</span></p> <p class="30" style="margin-top: 6.15pt; text-align: justify; text-indent: 23pt; background: transparent;"><span style="line-height: 19.2px;"> 由以上分析可以看到，调整性的故障模式占主 要部分是MAG加工中心故障的重要特点。这一特点 的深层原因是由高速、强力切削与精密位置控制之 间的矛盾。强力切削导致夹具夹紧定位要求高，精密 位置控制既需要主轴的性能优秀，还需要夹具定位 可靠。一台机床性能的优劣不仅要看它的加工能力， 还有看它的可靠性。通过以上数据的分析，调整型故 障对机床的可靠性起着决定性作用。一些调整型和 损坏型故障有其规律性，我们可以通过对机床运行 数据和故障信息进行预防性的维修。</span></p> <p class="30" style="margin-top: 6.15pt; text-align: justify; text-indent: 23pt; background: transparent;"><span style="line-height: 19.2px;"><br /> </span></p> <p class="30" style="margin-top: 6.15pt; text-align: justify; text-indent: 23pt; background: transparent;"><span style="line-height: 19.2px;"><br /> </span></p> <p class="30" style="margin-top: 6.15pt; text-align: justify; text-indent: 23pt; background: transparent;"><span style="line-height: 19.2px;">3结束语</span></p> <p class="30" style="margin-top: 6.15pt; text-align: justify; text-indent: 23pt; background: transparent;"><span style="line-height: 19.2px;"> 经过数据的统计分析，我们知道MAG加工中心 调整型故障占大部分的比例，是该加工中心的主要 特点。这一特点的表面原因是机床运行环境多变和 复杂。深层原因是由高速、强力切削与精密位置控制 之间的矛盾。由于调整型故障与机床可靠性息息相 关,所以我们在对机床的可靠性维护时，需要着重研 究调整型故障的产生机理和规律。只有把握住调整 型故障的产生机理和规律，通过预防性维修作业，我 们才能够有效抑制调整性故障的发生，从而提高机 床的稳定性和可靠性。</span></p> <p class="30" style="margin-top:0cm;margin-right:0cm;margin-bottom:16.7pt; margin-left:0cm;text-align:justify;text-justify:inter-ideograph;text-indent: 23.0pt;line-height:14.4pt;mso-line-height-rule:exactly;background:transparent"> </p> <p class="30" style="margin-top:0cm;margin-right:0cm;margin-bottom:16.7pt; margin-left:0cm;text-align:justify;text-justify:inter-ideograph;text-indent: 23.0pt;line-height:14.4pt;mso-line-height-rule:exactly;background:transparent"><span style="font-size:9.0pt;font-family:宋体; mso-ascii-font-family:Calibri;mso-hansi-font-family:Calibri;mso-bidi-font-family: "Times New Roman";mso-font-kerning:1.0pt;mso-ansi-language:EN-US;mso-fareast-language: ZH-CN;mso-bidi-language:AR-SA">本文由伯特利数控整理发表文章均来自网络仅供学习参考，转载请注明！</span></p></div> <div class="blank30"></div> <!-- tag --> <div class="blank10"></div> 标签： <a 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