目录录摘要....................................................................................................................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...................................................................61.5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...........................................................13工序安排.......................................................................................13定位基准.......................................................................................13夹具使用.......................................................................................141.7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.................................................................181.10工时定额的计算.....................................................................................191.10.1铣连杆大小头平面.......................................................................191.10.2粗磨大...
