机械式多点变压边力压边组件的设计.pdf

文档介绍：第 34 卷第 2 期
2009 年 4 月
V o l
34
No
2 FORGING & STAMPING TECHNOLOGY A pr. 2009
机械式多点变压边力压边组件的设计
张
斌, 谢
军, 刘永强
( 泰州职业技术学院机电工程系, 江苏泰州 225300)
摘要: 分析了目前多点变压边力压边装置的研究现状, 设计出一种由齿轮齿条机构、凸轮机构及碟形弹簧组成的机械
式多点变压边力压边组件。介绍了该组件的结构及工作过程为: 利用齿轮齿条机构将上滑块的直线移动转换为凸轮的
转动, 通过改变凸轮的轮廓曲线、初始位置和转动角度得到不同的弹簧变形量, 从而可实现预期的压边力变化。
关键词: 变压边力; 凸轮机构; 齿轮齿条机构
中图分类号: TG386
2
文献标识码: A
文章编号: 1000
3940 ( 2009) 02
0064
03
Design of mechanical subassembly with multi
point variable blank holder force
ZHANG Bin, XIE Jun, LIU Yong
qiang
( D epartment o f M echanical and Electro nical, T aizhou Po ly tech Colleag e, T aizhou 225300, China)
Abstract: By analyzing the trends o f present multi
po int v ariable blank ho lder force ( VBHF ) mechanism research, a
mechanica l subassembly w ith multi
po int VBH F which made up of gear rack mechanism, cam mechanism, and bel
lev ille spring s w as designed. T he subassembly used the g ear rack mechanism to change the mo vement o f to p slider int o
the rotatio n o f cam. T he different deformations w ere go t by chang ing the cam profile curve, init ial position and rota
ting ang le and t he ex pected changes in the BH F w ere achieved . T he subassembly
s structure and its w orking pro cess
w ere presented.
Keywords: v ariable blank holder force ( VBHF ) ; cam mechanism; g ear rack mechanism
在拉深成形中, 为了避免板材起皱或破裂, 控过小, 无法有效控制材料的流动, 容易起皱;