锁扣的冲裁翻孔弯曲级进模具设计  

Design of the blanking-hole flanging-bending progressive die for a lock

作　　者：孙慧[1] 陈永兴[1] 

机构地区：[1]陕西工业职业技术学院材料工程学院,陕西咸阳712000

出　　处：《模具技术》2016年第3期22-26,共5页Die and Mould Technology

摘　　要：通过对锁扣冲压工艺性和冲压工艺方案的分析,确定了冲孔、翻孔、切断、弯曲等7个工序3个工位的排样设计。进行了冲压工艺计算,确定了压力中心,选用了合理的弹性元件。弹性卸料装置保证了条料向前送进时能保持平整;采用始用档料销定位,定位简单且可保证精度;凹模采用镶块式,便于更换,降低了模具制造成本。Based on stamping manufacturability and process program analysis of the lock,a progressive die consisted of punching,hole flanging,cutting and bending was designed and the nesting including seven steps and three stations was also developed.An elastic spring stripper was selected according to the calculated pressure center,which can ensure that the stock was keeping flat in the fed-in process.Besides,a stop pin was used for the aim of simple positioning and higher precision.The die bushing was inserted into die block,so the bottom die could be replaced conveniently,which significantly decreased the cost of die manufacturing.

关 键 词：切断 弯曲 排样设计 压力中心 

分 类 号：TG385.2[金属学及工艺—金属压力加工]