目录摘要....................................................................................................................3第一章汽车连杆加工工艺.................................................................................41.1连杆的结构特点..........................................................................................41.2连杆的主要技术要求..................................................................................41.2.1大、小头孔的尺寸精度、形状精度................................................51.2.2大、小头孔轴心线在两个互相垂直方向的平行度........................51.2.3大、小头孔中心距............................................................................51.2.4连杆大头孔两端面对大头孔中心线的垂直度................................51.2.5大、小头孔两端面的技术要求........................................................51.2.6螺栓孔的技术要求............................................................................61.2.7有关结合面的技术要求....................................................................61.3连杆的材料和毛坯...................................................................................61.4连杆的机械加工工艺过程.......................................................................81.5连杆的机械加工工艺过程分析................................................................101.5.1工艺过程的安排..............................................................................101.5.2定位基准的选择..............................................................................111.5.3确定合理的夹紧方法......................................................................121.5.4连杆两端面的加工..........................................................................121.5.5连杆大、小头孔的加工..................................................................121.5.6连杆螺栓孔的加工..........................................................................131.5.7连杆体与连杆盖的铣开工序..........................................................131.5.8大头侧面的加工..............................................................................131.6连杆加工工艺设计应考虑的问题............................................................131.6.1工序安排.......................................................................................131.6.2定位基准.......................................................................................131.6.3夹具使用.......................................................................................131.7切削用量的选择原则................................................................................141.7.1粗加工时切削用量的选择原则......................................................141.7.2精加工时切削用量的选择原则......................................................151.8确定各工序的加工余量、计算工序尺寸及公差....................................151.8.1确定加工余量..................................................................................151.8.2确定工序尺寸及其公差..................................................................161.9计算工艺尺寸链........................................................................................171.9.1连杆盖的卡瓦槽的计算..................................................................171.9.2连杆体的卡瓦槽的计算...........................................
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