锻压技术

多工位级进模减少弯曲回弹的研究

英文标题：Research on reduction in bending springback of multi-position progressive die

作者：祁倩何敏红王树勋

单位：江门职业技术学院

分类号：TG76

出版年,卷(期):页码：2015,40(3):89-93

摘要：

对在多工位级进模上连续变形过程中怎样减少弯曲回弹进行了研究，采用的冲压制件材料为EGC-QS镀锌冷轧板，零件上有2个90°折弯、2个折弯边上各有1个圆孔，要求2个圆孔保持同心，同时为了保证零件的冲压质量及尺寸精度，要求控制工件弯曲后的回弹量。针对该零件的结构特点，进行了10个工位排样设计，为了减少弯曲回弹在折弯处设计压线，在弯曲凹模上设计凸台校正结构来抑制回弹；在折弯前清理毛坯边缘毛刺以减少应力集中；采用分步弯曲成形以减少一次变形量。采用优化后的工艺和模具设计方案进行级进模试冲试验，试验结果表明,冲压件的成形效果良好且满足质量要求。

How to reduce bending springback in the continuous deformation process of the multi-position progressive die was studied．A cold-rolled and galvanized EGC-QS steel sheet was selected as the stamping workpiece material，which had a circular hole in each side of the two 90°bends and the two holes were required to be coaxial．At the same time，the springback of the workpiece must be in controll in order to ensure stamping quality and precision of the workpiece. According to the structure characteristics of the workpiece，the layout design for ten positions were completed．The press lines were designed on the bending line to reduce the springback. The convex correction structure was designed in the bending die to restrain the springback. The rough edge burr was cleaned before bending to reduce the stress concentration，and the step-by-step bending process was realized to reduce the deformation amount of each step．The trial of the progressive die was carried out by optimized process and die design structure. The experimental result shows that the excellent forming quality of the workpiece meets the requirements．

基金项目：

2012年财政部、教育部中央专项资金职业教育实训基地建设项目（财教〔2012〕145号）；2012年广东省高职重点培育专业建设项目（粤财教〔2012〕445号）

祁倩（1985-），女，硕士，讲师

参考文献：

［1］洪慎章，金龙建.多工位级进模设计实用技术[M]. 北京：机械工业出版社，2010.Hong S Z, Jin L J. Practical Design Technology of Multi-position Progressive Die[M].Beijing: China Machine Press,2010.
［2］陈炎嗣.多工位级进模设计与制造[M].北京：机械工业出版社，2006．Chen Y S. Design and Manufacture of Multi-position Progressive Die[M].Beijing: China Machine Press,2006.
［3］何敏红，王树勋. 支撑架多工位级进模的设计[J]. 锻压技术, 2013,38(1):137-139．He M H, Wang S X. Design of multi-position progressive die for support frame[J]. Forging & Stamping Technology, 2013，38(1):137-139.
［4］何敏红，王树勋. 压盖级进模排样设计的研究[J]. 锻压技术, 2013,38(3):115-117．He M H, Wang S X. Research of layout design for gland progressive die[J].Forging & Stamping Technology, 2013，38(3):115-117.

［5］何敏红，王树勋. 悬挂件多工位级进模的设计[J]. 锻压技术, 2012,37(5):115-117．He M H, Wang S X. Design of multi-position progressive die for suspension component [J]. Forging & Stamping Technology, 2012，37(5):115-117.
［6］何开峰，刘联平.弹簧连接件级进模设计[J].模具工业,2011，37(7)：19－20．He K F, Liu L P. Development of progressive die for spring connector [J]. Die & Mould Industry,2011，37(7)：19-20.
［7］向小汉.后背门外板加强版多工位级进模设计[J]. 锻压技术, 2013,38(2):101-104．Xiang X H. Design of multi-position progressive die for reinforcement-GATE OTR PNL [J]. Forging & Stamping Technology, 2013，38(2):101-104.
［8］谭锋.手机连接器端子级进模设计[J]. 模具工业,2012,38(9):31－35．Tan F. Progressive die for cellphone connector terminal[J]. Die & Mould Industry, 2012, 38(9):31-35.
［9］于文强，叶成荫，张建龙.录音机开门推板级进模设计[J]. 锻压技术, 2012,37(2):100-102．Yu W Q, Ye C M, Zhang J L. Progressive die design of recorder open-door push plank [J]. Forging & Stamping Technology,2012，37(2):100-102.
［10］蒙以嫦.副仪表板本体后安装支架多工位级进模设计[J]. 锻压技术, 2014,39(2):118-122． Meng Y C, Design of multi-position progressive die of installing bracket behind accessory instrument panel ontology [J]. Forging & Stamping Technology, 2014，39(2): 118-122.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】