Transactions of Materials and Heat Treatment

Title：Layout and structure design on progressive die for connector

Authors： Yan Huajun Zang Qiqi Liu Yuzhong Zhang Shuangjie

Unit： Hebei University of Science and Technology Hebei Engineering Technology Research Center of Precision Punching Process and Die

KeyWords： connector progressive die layout design die structure stamping

ClassificationCode：TG386.2

year,vol(issue):pagenumber：2017,42(7):107-112

Abstract：

The stamping process analysis was carried out for a connector. By comparing the two layout methods, a layout chart consisted of five blanking steps, one profiling step, three bending steps and one cutting step was designed and optimized, the bilateral carrier was designed, and the material utilization reached 48.9%. However, piercing punches with small apertures were designed as transitional shoulder structures to enhance the strength of die. The quick-change fixing type was designed, the working part of punch was added the protective sleeve, and the abnormity piercing punches were positioned by one-side hanging table. The dies were designed as an insert block structure. Then, the profiling punch was installed on the unloading plate to ensure the depth and precision of profiling. Furthermore, the complex Z-shaped bending adopts two-step bending structures of upward bending and downward bending, the upward bending punches were installed on the unloading plate, and the accuracy of bending and the correctness of discharge and blank holder could be ensured.

Funds：

河北省高等学校自然科学研究青年基金项目(QN2016229)；河北科技大学理工学院教研项目(2015Z01，ZX2016Y02)

作者简介：闫华军(1978-)，男，博士，副教授，E-mail：yanhj22@163.com

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