新型变压边力拉深模设计  

A new type of drawing die with variable blank holder force

作　　者：柳建安[1] 肖亮[1] 董永平[1] 

机构地区：[1]中南林业科技大学机电工程学院,湖南长沙410004

出　　处：《模具工业》2008年第5期20-23,共4页Die & Mould Industry

摘　　要：针对板料拉深成形过程中压边力控制较难的问题,根据凸轮机构运动的特点,设计了一种由曲柄滑块机构和凸轮机构组成的拉深模变压边力机构,该机构在拉深模工作过程中,能够合理控制压边力的大小。实践表明,变压边力拉深模满足拉深工艺要求,改善了拉深产品质量。A variable BHF mechanism in a drawing die, which combines slider-crank mechanism and cam mechanism, was designed based on the performance characteristic of cam mechanism in order to control the BHF during the drawing process in forming sheet material. The application proves the structure meet the drawing requirement and improves the product quality.

关 键 词：拉深模 压边力 凸轮机构 起皱 

分 类 号：TG386.32[金属学及工艺—金属压力加工]