零件年生产纲领：500件/年 应完成量： （1）开合螺母（下）座工艺卡（ 1套） （2）夹具装配图A1（594x841） （3）课程设计说明书（A4纸打印或课程设计说明书专用纸手写，但须仿宋体字） 1.课程设计任务书········································· 2 2.设计进度计划表········································· 2 3.工艺规程编制··········································· 3 3.1分析加工零件的工艺性································· 3 3.2毛坯的选择··········································· 7 3.3工艺规程制定········································· 9 4.工艺装备（机床专用夹具）设计··························16 4.1夹具总体方案设计·····································16 4.2夹具总装图的绘制·····································18 4.3夹具零件图的绘制·····································18 设计心得················································19 参考文献················································20 1.课程设计任务书 设计任务： （1）C6140车床对开合螺母下座工艺规程 （2）钻2-12H7孔钻模（钻床夹具）设计