连杆大头孔精镗夹具和工艺设计

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1、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...................................................................

2、......................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..............................................

3、.............................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..............................

4、.....................................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........................................................................

5、.....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...................

6、......................................................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......................................................

7、.....13工序安排.......................................................................................13定位基准.......................................................................................13夹具使用......................................