动簧片多工位级进模设计

Design of multi-position progressive die for dynamic spring lamination

分析动簧片成形过程中材料变形以及模具工作过程,对工艺过程进行改良,提出预切→倒毛刺→60°向上弯→94°向上弯→135°预叠→叠片的成形工艺,解决了传统工艺出现叠片不稳、废屑多等缺陷。模具冲次达到500次/min,月产量已达到百万件,生产顺利,零件质量稳定。

The technique for processing dynamic spring lamination was improved based on analysis of the material deformation in the forming process and the work procedure of the die. A new scheme was proposed which includes pre-punch, deburring, 60°up-bending, 94°up-bending, 135°pre-stacking, stacking. The application can solve the traditional problem of unstable lamination and lots of scraps and the punch frequency achieves 500 times per min- ute.