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transparent;">〇引言</span></p> <div class="Section1"> <p class="1500" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150SimSun"><span style="font-size: 7.5pt;">在实际生产加工中曲面的加工编程往往有自动编程和宏程序 手工编程两种形式。自动编程常常借助于</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">CAD/CAM</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">软件，由于 </span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">CAD/CAM</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">软件构造曲面的底层数学模型所限，也由于</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">CAD/CAM</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">软 件对曲面生成刀具轨迹的逼近原理所限，在执行事实上真正的整圆 或圆弧轨迹时，软件无法智能地判断，生成的程序并不是</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">G02/GO3 </span></span><span class="150SimSun"><span style="font-size: 7.5pt;">指令，而是</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">G01</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">逐点逼近形成的圆。如此一来不但生成的程序指令 占据庞大的空间使得机床反应迟钝，更重要的是由于直线逼近原理 会使在造型期间的计算误差在加工过程中被放大进而影响工件精 度及表面质量。本文以典型外球面的曲面手工编程加工为例详细进 行了加工分析，并以实践方式得以论证。通过详细实践操作、详细分 析最终得出加工路径的合理性对实际加工工件的性能及质量的影 响，重要的是加工分析思路，由此可以更大程度影响以后实际加工， 并且对于数控教学也有很大的指导意义。</span></span></p> <p class="1500" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150Garamond">1</span><span class="150SimSun"><span style="font-size: 7.5pt;">外球面加工基本知识</span></span></p> <p class="1500" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">1.1</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">球面加工常用刀具的选择</span></span></p> <p class="1500" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150SimSun"><span style="font-size: 7.5pt;">粗加工可以使用键槽铣刀或立铣刀，也可以使用球头铣刀。精 加工应使用球头铣刀。</span></span></p> <!--[if !supportTextWrap]--> <!--[endif]--> <p class="1500" style="margin-top:.4pt;margin-right:0cm;margin-bottom:0cm; margin-left:0cm;margin-bottom:.0001pt;text-align:justify;text-justify:inter-ideograph; text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule:exactly;mso-list: l0 level1 lfo1;tab-stops:36.3pt;background:transparent"><!--[if !supportLists]--><span style="font-size: 9pt; font-family: Garamond;">1.2<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="150SimSun"><span style="font-size: 7.5pt;">球面加工的走刀路线</span></span><o:p></o:p></p> <p class="1500" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150Garamond">_</span><span class="150SimSun"><span style="font-size: 7.5pt;">般使用一系列水平面截球面所形成的同心圆来完成走刀。在 进刀控制上有从上向下进刀和从下向上进刀两种，一般应使用从下 向上进刀来完成加工，此时主要利用铣刀侧刃切削，表面质量较好， 端刃磨损较小，同时切削力将刀具向欠切方向推，有利于控制加工 尺寸。</span></span></p> <p class="1500" style="margin-top:0cm;margin-right:156.0pt;margin-bottom:0cm; margin-left:19.0pt;margin-bottom:.0001pt;text-indent:0cm;line-height:12.25pt; mso-line-height-rule:exactly;mso-list:l0 level1 lfo1;tab-stops:36.3pt; background:transparent"><!--[if !supportLists]--><span style="font-size: 9pt; font-family: Garamond;">1.3<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="150SimSun"><span style="font-size: 7.5pt;">进刀控制算法 </span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">1.3.1</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">进刀点的算法</span></span></p> <!--[if !supportTextWrap]--> <!--[endif]--> <p class="1500" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;mso-list:l1 level1 lfo2;tab-stops:31.5pt;background:transparent"><!--[if !supportLists]--><span style="font-size: 7.5pt; font-family: 宋体; letter-spacing: 1pt;">①<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="150SimSun"><span style="font-size: 7.5pt;">先根据允许的加工误差和表面粗糙度，确定合理的</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">Z</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">向进刀 量，再根据给定加工深度</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">Z,</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">计算加工圆的半径，即：</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">r=sq</span></span><span class="150Garamond1"><span lang="EN-US" style="font-size: 9pt;">rt</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">[R2-z2</span></span><span class="150SimSun"><span style="font-size: 7.5pt; font-family: SimSun;">]</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">。此 算法走刀次数较多。</span></span><o:p></o:p></p> <p class="1500" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;mso-list:l1 level1 lfo2;tab-stops:31.95pt;background:transparent"><!--[if !supportLists]--><span style="font-size: 7.5pt; font-family: 宋体; letter-spacing: 1pt;">②<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="150SimSun"><span style="font-size: 7.5pt;">先根据允许的加工误差和表面粗糙度，确定两相邻进刀点相 对球心的角度增量，再根据角度计算进刀点的</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">r</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">和</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">Z</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">值，即</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">Z = R*sin0</span></span><span class="150SimSun"><span lang="EN-US" style="font-size: 7.5pt; font-family: MingLiU;">，</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">r=R*cos0</span></span><span class="150SimSun"><span lang="EN-US" style="font-size: 7.5pt; font-family: MingLiU;">。</span></span><o:p></o:p></p> <p class="1500" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">1.3.2</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">进刀轨迹的处理</span></span></p> <p class="1500" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;mso-list:l2 level1 lfo3;tab-stops:31.25pt;background:transparent"><!--[if !supportLists]--><span style="font-size: 7.5pt; font-family: 宋体; letter-spacing: 1pt;">①<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="150SimSun"><span style="font-size: 7.5pt;">对立铣刀加工，曲面加工是刀尖完成的，当刀尖沿圆弧运动 时，其刀具中心运动轨迹也是</span></span><span class="150Garamond">_</span><span class="150SimSun"><span style="font-size: 7.5pt;">行径的圆弧，只是位置相差一个刀 具半径。</span></span><o:p></o:p></p> <p class="1500" style="margin:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;mso-list:l2 level1 lfo3;tab-stops:31.0pt;background:transparent"><!--[if !supportLists]--><span style="font-size: 7.5pt; font-family: 宋体; letter-spacing: 1pt;">②<span style="font-stretch: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';"> </span></span><!--[endif]--><span class="150SimSun"><span style="font-size: 7.5pt;">对球头刀加工，曲面加工是球刃完成的，其刀具中心是球面 的同心球面，半径相差一个刀具半径。</span></span><o:p></o:p></p> <p class="1500" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150Garamond">2</span><span class="150SimSun"><span style="font-size: 7.5pt;">加工方案提出及分析</span></span></p> <p class="1500" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">2.1</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">方案提出</span></span></p> <p class="341" style="text-align:justify;text-justify:inter-ideograph;text-indent: 19.0pt;line-height:12.25pt;mso-line-height-rule:exactly;background:transparent"><span class="340">2.1.1 </span><span class="34SimSun"><span style="font-size: 7.5pt;">逐层加工法</span></span></p> <p class="1500" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150SimSun"><span style="font-size: 7.5pt;">逐层加工法就是应用宏程序设置循环驱动铣刀，在同_平面用 </span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">GO2/GO3</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">铣削圆台时</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">Z</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">向保持不变，待</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">X</span></span><span class="150SimSun"><span lang="EN-US" style="font-size: 7.5pt; font-family: MingLiU;">、</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">Y</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">向铣削完成后</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">X</span></span><span class="150SimSun"><span lang="EN-US" style="font-size: 7.5pt; font-family: MingLiU;">、</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">Y</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">向 运动停止后，铣刀再沿着</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">Z</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">轴向上或向下进行插补，待到达指定值 后再进行第二次循环，直到整个循环过程完成。</span></span></p> <p class="1500" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">2.1.2 </span></span><span class="150SimSun"><span style="font-size: 7.5pt;">螺旋插补加工法</span></span></p> <p class="1500" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150SimSun"><span style="font-size: 7.5pt;">螺旋加工法是指整个铣削过程从下刀开始到终点铣刀沿某一 条特定的螺旋线上升或下降进行插补。整个插补过程</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">Z</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">轴的移动是 伴随着</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">X</span></span><span class="150SimSun"><span lang="EN-US" style="font-size: 7.5pt; font-family: MingLiU;">、</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">Y</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">的移动而逐步变化的。</span></span></p> <p class="1500" style="margin-top:0cm;margin-right:140.0pt;margin-bottom:0cm; margin-left:19.0pt;margin-bottom:.0001pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">2.2</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">方案论证与实施 </span></span><span class="150Garamond">2.2.1 </span><span class="150SimSun"><span style="font-size: 7.5pt;">逐层加工法的分析</span></span></p> <p class="1500" style="margin-bottom:0cm;margin-bottom:.0001pt;text-align:justify; text-justify:inter-ideograph;text-indent:19.0pt;line-height:12.25pt;mso-line-height-rule: exactly;background:transparent"><span class="150SimSun"><span style="font-size: 7.5pt;">整个加工过程中的刀具路径是这样子的：铣刀在程序的控制下 首先以</span></span><span class="150Garamond"><span lang="EN-US" style="font-size: 9pt;">GO1</span></span><span class="150SimSun"><span style="font-size: 7.5pt;">的方式运行到预想圆的加工起始点，稍作停留，然后再</span></span><span class="241ptExact" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;">按</span><span class="24Garamond" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span lang="EN-US" style="font-size: 7.5pt;">GO</span></span><span class="248pt" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span lang="EN-US" style="font-size: 8pt;">2/</span></span><span class="24Garamond" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span lang="EN-US" style="font-size: 7.5pt;">GO</span></span><span class="248pt" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span lang="EN-US" style="font-size: 8pt;">3</span></span><span class="241ptExact" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;">的插补方式进行圆弧插补</span><span class="24Gulim" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span style="font-size: 11pt;">，</span></span><span class="241ptExact" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;">待整圆加工完成后</span><span class="24Garamond" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span lang="EN-US" style="font-size: 7.5pt;">Z</span></span><span class="241ptExact" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;">轴以 </span><span class="24Garamond" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span lang="EN-US" style="font-size: 7.5pt;">GO</span></span><span class="248pt" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span lang="EN-US" style="font-size: 8pt;">1</span></span><span class="241ptExact" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;">方式向上或向下运动</span><span class="24Gulim" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span style="font-size: 11pt;">，</span></span><span class="241ptExact" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;">到指定之后</span><span class="24Garamond" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span lang="EN-US" style="font-size: 7.5pt;">X</span></span><span class="24Gulim" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span lang="EN-US" style="font-size: 11pt;">、</span></span><span class="24Garamond" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span lang="EN-US" style="font-size: 7.5pt;">Y</span></span><span class="241ptExact" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;">轴再按</span><span class="24Garamond" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span lang="EN-US" style="font-size: 7.5pt;">GO</span></span><span class="248pt" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span lang="EN-US" style="font-size: 8pt;">1</span></span><span class="241ptExact" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;">方式运动</span><span class="24Gulim" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span style="font-size: 11pt;">， </span></span><span class="241ptExact" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;">重复以上步骤直到加工结束</span><span class="24Gulim" style="line-height: 12.25pt; text-indent: 0cm; background-color: transparent;"><span style="font-size: 11pt;">。</span></span></p> <p class="24" align="left" style="text-indent: 19pt; line-height: 12.25pt; background: transparent;"><span class="241ptExact">在整个加工过程中</span><span class="24Garamond"><span lang="EN-US" style="font-size: 7.5pt;">Z</span></span><span class="241ptExact">轴的运动总是独立的</span><span class="24Gulim"><span style="font-size: 11pt;">、</span></span><span class="241ptExact">不连贯的</span><span class="24Gulim"><span style="font-size: 11pt;">，</span></span><span class="241ptExact">在加工 完一层后由于</span><span class="24Garamond"><span lang="EN-US" style="font-size: 7.5pt;">Z</span></span><span class="241ptExact">轴的迟钝反应及突然加速</span><span class="24Gulim"><span style="font-size: 11pt;">，</span></span><span class="241ptExact">机床会发生颤抖</span><span class="24Gulim"><span style="font-size: 11pt;">”，</span></span><span class="241ptExact">而 由此产生的后果往往是致命的</span><span class="24Gulim"><span style="font-size: 11pt;">，</span></span><span class="241ptExact">轻的会影响工件精度或表面质量</span><span class="24Gulim"><span style="font-size: 11pt;">， </span></span><span class="241ptExact">而重者则会折断刀具</span><span class="24Gulim"><span style="font-size: 11pt;">。</span></span><span class="241ptExact">图</span><span class="248pt"><span lang="EN-US" style="font-size: 8pt;">2-1</span></span><span class="241ptExact">就是逐层加工后的效果仿真放大图</span><span class="24Gulim"><span style="font-size: 11pt;">。 </span></span><span class="241ptExact">实际加工中由于</span><span class="24Garamond"><span lang="EN-US" style="font-size: 7.5pt;">Z</span></span><span class="241ptExact">和</span><span class="24Garamond"><span lang="EN-US" style="font-size: 7.5pt;">X/Y</span></span><span class="241ptExact">轴的突然运动对工件的精度及表面质量 是显而易见的</span><span class="24Gulim"><span style="font-size: 11pt;">。</span></span></p> <p class="24" align="left" style="text-indent: 19pt; line-height: 12.25pt; background: transparent;"><span class="241ptExact">分析上图所示质量问题</span><span class="24Gulim"><span style="font-size: 11pt;">，</span></span><span class="241ptExact">造成这样的后果主要是由于加工中心 的</span><span class="24Garamond"><span lang="EN-US" style="font-size: 7.5pt;">X</span></span><span class="24Gulim"><span lang="EN-US" style="font-size: 11pt;">、</span></span><span class="24Garamond"><span lang="EN-US" style="font-size: 7.5pt;">Y</span></span><span class="24Gulim"><span lang="EN-US" style="font-size: 11pt;">、</span></span><span class="24Garamond"><span lang="EN-US" style="font-size: 7.5pt;">Z</span></span><span class="241ptExact">三轴的运动不协调造成的</span><span class="24Gulim"><span style="font-size: 11pt;">，</span></span><span class="241ptExact">为了克服图</span><span class="248pt"><span lang="EN-US" style="font-size: 8pt;">2-1</span></span><span class="241ptExact">中的质量问题 我们采取了常用的圆弧切入圆弧切出地方法进行加工</span><span class="24Gulim"><span style="font-size: 11pt;">。</span></span><span class="241ptExact">即图</span><span class="248pt"><span lang="EN-US" style="font-size: 8pt;">2-2 </span></span><span class="241ptExact">所示的加工方法</span><span class="24Gulim"><span style="font-size: 11pt;">。</span></span></p> <p class="24" align="left" style="text-indent: 19pt; line-height: 12.25pt; background: transparent;"><span class="241ptExact">在采取了圆弧切入圆弧切出方法后表面质量有了明显改观</span><span class="24Gulim"><span style="font-size: 11pt;">，</span></span><span class="241ptExact">特 别是由于</span><span class="24Garamond"><span lang="EN-US" style="font-size: 7.5pt;">X/Y</span></span><span class="241ptExact">轴的移动造成的过切现象得到了彻底改善</span><span class="24Gulim"><span style="font-size: 11pt;">，</span></span><span class="241ptExact">实际放大 模拟效果如图</span><span class="248pt"><span style="font-size: 8pt;">2-3</span></span><span class="24Gulim"><span style="font-size: 11pt;">。</span></span><span class="241ptExact">但是从下图中可以明显看出由于</span><span class="24Garamond"><span lang="EN-US" style="font-size: 7.5pt;">X</span></span><span class="24Gulim"><span lang="EN-US" style="font-size: 11pt;">、</span></span><span class="24Garamond"><span lang="EN-US" style="font-size: 7.5pt;">Y</span></span><span class="24Gulim"><span lang="EN-US" style="font-size: 11pt;">、</span></span><span class="24Garamond"><span lang="EN-US" style="font-size: 7.5pt;">Z</span></span><span class="241ptExact">三轴 的不协调造成的台阶现象还是没有丝毫改变</span><span class="24Gulim"><span style="font-size: 11pt;">。</span></span></p> <p class="24" align="left" style="text-indent: 19pt; line-height: 12.25pt; background: transparent;"><span class="2485pt"><span lang="EN-US" style="font-size: 8.5pt;">2</span></span><span class="24Garamond2"><span lang="EN-US" style="font-size: 8pt;">.2.2</span></span><span class="241ptExact">螺旋插补法分析</span></p> <p class="24" align="left" style="text-indent: 19pt; line-height: 12.25pt; background: transparent;"><span class="241ptExact">为了彻底解决以上的现实问题</span><span class="24Gulim"><span style="font-size: 11pt;">，</span></span><span class="241ptExact">我们又提出了螺旋插补的加工 方法</span><span class="24Gulim"><span style="font-size: 11pt;">，</span></span><span class="241ptExact">如图</span><span class="248pt"><span lang="EN-US" style="font-size: 8pt;">2-4</span></span><span class="241ptExact">加工示意图所示</span><span class="24Gulim"><span style="font-size: 11pt;">，</span></span><span class="241ptExact">铣刀从球体的下端开始沿着一条 螺旋线缓缓上升</span><span class="24Gulim"><span style="font-size: 11pt;">，</span></span><span class="241ptExact">在上升的过程中机床的三个坐标轴同时运动</span><span class="24Gulim"><span style="font-size: 11pt;">，</span></span><span class="241ptExact">相 互协调完美结合</span><span class="24Gulim"><span style="font-size: 11pt;">。</span></span></p> <p class="24" style="text-align:justify;text-justify:inter-ideograph;text-indent: 18.0pt;line-height:12.25pt;mso-line-height-rule:exactly;background:transparent"><span class="24Garamond2"><span style="font-size: 8pt;">3</span></span><span class="241ptExact">结论</span></p> <p class="24" style="text-align:justify;text-justify:inter-ideograph;text-indent: 19.0pt;line-height:12.25pt;mso-line-height-rule:exactly;background:transparent"><span class="241ptExact">生产实践表明灵活安排加工工序，合理设置刀具加工路径，在 数控加工中有着重要的意义。它给我们的编程和加工带来很大的方 便，能大大地提高工件精度、表面质量以及工作效率。？</span></p> <p class="113" style="background:transparent"> </p> <p class="24" style="text-align:justify;text-justify:inter-ideograph;text-indent: 19.0pt;line-height:12.25pt;mso-line-height-rule:exactly;background:transparent"><span class="241ptExact">本文通过一个简单的加工实例揭示了机械加工领域发展前进 的过程，发现在机械加工领域里学习和创新是永无止境的，只要善 于钻研刻苦努力技术水平和学术理论定能攀上新的台阶。在以后的 工作中我将秉承精益求精的思想，遇见问题要多思考多和别人多探 讨，争取找到最佳解决方案。笔者衷心希望，我国科技界、产业界和 教育界通力合作，把握好知识经济带来的难得机遇，迎接竞争全球 化带来的严峻挑战，为在21世纪使我国数控技术和产业走向世界 的前列，使我国经济继续保持强劲的发展势头而共同努力奋斗！</span></p> <p class="24" style="text-align:justify;text-justify:inter-ideograph;text-indent: 19.0pt;line-height:12.25pt;mso-line-height-rule:exactly;background:transparent"> </p> <p class="24" style="text-align:justify;text-justify:inter-ideograph;text-indent: 19.0pt;line-height:12.25pt;mso-line-height-rule:exactly;background:transparent"> </p> <p class="MsoNormal"><span style="font-size:9.0pt;font-family:宋体;mso-ascii-font-family: "Times New Roman";mso-hansi-font-family:"Times New Roman"">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><span style="font-size:9.0pt"> <span lang="EN-US"><o:p></o:p></span></span></p> <p> </p> </div></div> <div class="blank30"></div> <!-- tag --> <div class="blank10"></div> 标签： <a href='/index.php?case=tag&act=show&tag=%E5%8A%A0%E5%B7%A5%E4%B8%AD%E5%BF%83' target='_blank'>加工中心</a> <a href='/index.php?case=tag&act=show&tag=%E7%90%83%E9%9D%A2%E5%8A%A0%E5%B7%A5' target='_blank'>球面加工</a> <a href='/index.php?case=tag&act=show&tag=%E5%88%80%E5%85%B7%E8%B7%AF%E5%BE%84' target='_blank'>刀具路径</a> <!-- 分类 --> <div class="blank10"></div> 分类： <a href='/bethel/type/jnc/type-1.html' target='_blank'>加工中心</a> <div class="blank30"></div> <!--自动调用自定义字段--> <div 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