汽车轮辐自动分度冲孔模设计

分析了汽车轮辐工艺特性，论述了汽车轮辐自动分度冲孔模结构特点和工作原理。该模具通过由气缸控制的活塞杆带动齿轮传动，使转盘转动并复位；采用了两组弹簧斜销限位机构分别带动和限制了工件的转动。该模具保证了零件成形质量，提高了生产效率。

Design of Piercing Die with Auto Graduator for the Car Spoke

The article analyzes the technologic property of the spoke of the car, and describes character and working principle of the die. The die uses the air valve to move the staff and the gear to make the turntable rotate and return. It designs two spring dowel locating systems to rotate and locate the part. The die ensures the quality of the part, and promotes the working efficiency.