一种适用于超高速冲压新型产品的冲裁模具结构  

New blanking die structure for ultra high speed stamping

作　　者：单云[1] 吴斌[1] Shan Yun;Wu Bin(Wuxi Institute of Technology,School of Mechanical Technology,Wuxi 214121,China)

机构地区：[1]无锡职业技术学院机械技术学院,江苏无锡214121

出　　处：《锻压技术》2020年第3期119-124,共6页Forging & Stamping Technology

基　　金：国家自然科学基金资助项目(51165021)。

摘　　要：为实现超高速模具量产,对经典的U型冲裁结构进行了优化,将原始的分离式U型冲裁和下废料双工位优化为单工位一步式冲裁和下废料工艺,新结构将产品切除和废料切除工位融合到一起,提高了U型凸模的强度、缩短了模具长度、减小了跳废料率,保证了产品质量;新结构在同一工位上同时获得产品且切除废料,无需采用连料方式传送废料,从而缩短了原材料的宽度,降低了材料成本,减少了误送。同时,模具速度从原有的800次·min-1提高到2000次·min-1,实现了超高速的目的,并且该新结构被成功地推广到其他相类似的结构中,实现了技术的互通性。In order to achieve the mass production for ultra high speed stamping,the U-shaped blanking structure was optimized,and the two stations of original separate U-shaped blanking and scrap cutting were replaced by the one station process of blanking and scrap cutting,the new structure combined the cutting stations of product and strap to improve the strength of U-shaped punch,so shorten the die length,reduce skip scrap rate and guarantee the quality of product.Therefore,the new structure obtained the product and scrap cutting at the same station without transferring the scraps through the carrier,so the raw material width was decreased,the cost was saved,and the incorrect feeding was decreased.At the same time,the die speed was improved from 800 beats per minute to 2000 beats per minute to realize the purpose of ultra high speed,and the new structure was successfully extended to the other similar structures to achieve technical interoperability.

关 键 词：U型冲裁 超高速冲压 冲裁模 下度料 级进模具 

分 类 号：TG386[金属学及工艺—金属压力加工]