目录概述................................................................................................................................1第一章零件的分析......................................................................................................31.1零件的工艺性分析...............................................................................................51.1.1加工方法的选择..............................................................................................51.1.2保证端盖表面位置精度的方法.........................................................................51.1.3防止端盖变形的工艺措施................................................................................5第二章工艺规程的设计..............................................................................................62.1确定毛坯的制造形式........................................................................................62.2基准的选择..........................................................................................................62.2.1粗基准的选择..................................................................................................62.2.2精基准的选择..................................................................................................62.3制定工艺路线......................................................................................................62.4机械加工余量、工序尺寸及毛坯的确定.................................................................72.4.1两端外圆表面.......................................................................................................72.4.2工件内孔加工.......................................................................................................82.5确定切削用量及基本工时.....................................................................................82.5.1工序1锻造毛坯............................................................................................82.5.2工序2车削工艺外圆...................................................................................82.5.3工序3镗孔................................................................................................14第三章专用夹具设计................................................................................203.1工件的加工工艺.......................................................................................203.2定位元件的选择与设计....................................................................203.3.1定位误差的分............................................................................................203.3.2定位元件的选择.............................................................................................213．3端盖在夹具中定位夹紧.....................................................................2533．1夹紧装置的组成.............................................................................................253．3.2夹紧力的确定..........................................................................................253．3.3夹紧机构的选择与设计............................................................................25结束语…………………………………………………………………………….38参考文献......................................................................................................................391前言机械...
