毕业设计（论文）-回水盖零件工艺及车2-G1螺孔夹具设计

························································ 22 结论······································································································ 24 参考文献································································································· 25 致谢······································································································ 27 IV 全套设计请加 197216396 或 401339828 V VI VII VIII 1 1 加工工艺规程设计 1 .1 零件的分析 1.1.1 零件的作用题目给出的零件是回水盖。本零件是泵体类机械产品上的零件,一般安装在泵的端侧,既是泵的密封壳体,也是泵的进排水口。因此要求该零件结构形状较为复杂,具有一定的强度要求。回水盖是泵类产品的一个重要零件, 一般安装在泵的端侧。既是泵的密封壳体,也是泵进、排水的接口。回水盖的主要作用并保证部件与其他部件正确安装。因此回水盖零件的加工质量,不但直接影响的装配精度和运动精度,而且还会影响工作精度、使用性能和寿命。图 1回水盖 1.1.2 零件的工艺分析由回水盖零件图可知。回水盖是的外表面上有很多个平面需要进行加工。此外各表面上还需加工一系列螺纹孔。因此可将其分为三组加工表面。它们相互间有一定的位置要求。现分析如下: ( 1)以端面凸台为主要加工表面的加工面。这一组加工表面包括:端面