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多弯角电机支架多工位级进模设计
英文标题:Design on multi-station progressive die for multi-anger motor bracket
作者:王可胜 廖生温 吕德明 
单位:巢湖学院 
关键词:多弯角电机支架 多工位级进模 π型浮升机构 自锁滑块机构 侧向成形机构 
分类号:TG386
出版年,卷(期):页码:2021,46(11):219-224
摘要:

 根据多弯角电机支架的结构特点和工艺分析,利用二次开发的CAD软件优化料带的排样,获得了料宽方向少废料、送料方向无废料的排样方式,确定了采用15工位级进模来进行制件成形的冲压工艺方案。设计了料带的π型浮升机构,即在两个浮动托块之间架起一根圆棒,圆棒在下模板上的避位槽深度稍大于圆棒直径,无需加工很深的避位槽,提高了下模板的强度;给出了自锁滑块机构,该机构包含动滑块和静滑块,成形后动滑块斜向上方滑行一段距离后自锁,滑行的横向距离大于动滑块下方的凸包高度,实现了料带向上无障碍运动;探讨了侧向成形机构,该机构的滑块行程较长,避免了因其他机构滑行距离短而造成的成形缺陷。试冲结果表明,多弯角电机支架多工位级进模结构紧凑,工艺设计合理,能满足零件尺寸精度和生产批量的要求。

  According to the structural features and process analysis of multi-anger motor bracket, the layout of strip was optimized by the second-developed CAD software to obtain the layout methods with less scraps in the width direction and no scraps along the feeding direction, and the stamping process scheme with fifteen-station progressive die was determined to form the part. Then, the π-type floating mechanism of strip was designed, that is, a round rod was set up between two floating support blocks, and the depth of avoidance groove for the round rod on the lower die was slightly larger than the diameter of the round rod, so there was no need to process a deep avoidance groove, which improved the strength of the lower die. Furthermore, the self-locking slider mechanism was presented, which consisted of a movable slider and a static slider. After forming, the movable slider slid obliquely upward for a certain distance and then completed the self-lock, and the horizontal distance of sliding was greater than the height of convex hull under the moveable slider, which realized the upward movement of strip freely. Finally, the lateral forming mechanism was discussed, and the slider of the mechanism had a long stroke to avoid the forming defects caused by the short sliding distance of other mechanisms. The test results show that the multi-station progressive die for the multi-anger motor bracket has a compact structure and reasonable process design to meet the requirements of dimensional accuracy of parts and batch production.

基金项目:
徽高校自然科学研究重大项目(KJ2019ZD47)
作者简介:
作者简介:王可胜(1971-),男,博士,教授,高级工程师,E-mail:xclwks@126.com
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