目录摘要…………………………………………………………………………………………Ⅰ1CA6140车床后托架的加工工艺设计.....................................................................31.1CA6140车床后托架的结构特点和技术要求..........................................................31.2CA6140车床后托架的材料、毛坯和热处理..................................................................31.2.1毛坯材料及热处理...............................................................................................31.2.2毛坯的结构确定...................................................................................................41.3工艺过程设计中应考虑的主要问题...............................................................................41.3.1加工方法选择的原则...........................................................................................41.3.2加工阶段的划分...................................................................................................41.3.3工序的合理组合...................................................................................................51.3.4加工顺序的安排...................................................................................................51.4CA6140车床后托架的机械加工工艺过程分析..............................................................51.4.1CA6140车床后托架零件图分析..........................................................................51.4.2CA6140车床后托架的加工工艺的路线..............................................................71.5CA6140车床后托架的工序设计....................................................................................121.5.1工序基准的选择.................................................................................................121.5.2工序尺寸的确定.................................................................................................121.5.3加工余量的确定.................................................................................................141.5.4确定各工序的加工设备和工艺装备.................................................................151.5.5确定切削用量及工时定额.................................................................................162专用夹具设计........................................................................................................262.1铣平面夹具设计.............................................................................................................262.1.1研究原始质料.....................................................................................................262.1.2定位基准的选择.................................................................................................262.1.3切削力及夹紧分析计算.....................................................................................262.1.4误差分析与计算.................................................................................................272.1.5夹具设计及操作的简要说明.............................................................................282.2钻三杠孔夹具设计.........................................................................................................282.2.1研究原始质料.....................................................................................................282.2.2定位基准的选择..................................................
