Transactions of Materials and Heat Treatment

Title：Research and development on rapid design algorithm for screws and dowels in inserts of automotive stamping dies

Authors： Li Gui Yang Peng Liang Zhongkai Long Xiaoyu

Unit： Wuhan University of Science and Technology

KeyWords： automotive stamping dies inserts scews dowels adaptive design assembly

ClassificationCode：TG386

year,vol(issue):pagenumber：2017,42(10):138-144

Abstract：

Inserts are the basic structure of stamping dies, which are installed and assembled with other structural components by dowel positioning and screw fastening. The design of screws and dowels is simple, but it has an extraordinary request to the design quality and efficiency. Therefore, an adaptive fast design algorithm of screws and dowels was proposed based on the structure of die inserts. According to the structure shape and size of inserts, a series of circles representing the positions of screws and dowels were automatically generated, which met the requirements of spacing and margin of screws and dowels. Moreover, the arrangement of circles could be modified and adjusted arbitrarily and screws and dowels were fitted in the corresponding position circles by the standard part library. The algorithm could realize the design of screws and dowels in complex inserts with nonplanar die surface, and the length specification of screws and dowels could be adaptively chosen on the basis of the fastening thickness of inserts. Further more, in order to realize the automated design, the algorithm was also seamlessly integrated into the NX software platform, and an adaptive design and assembly system of screws and dowels were developed. The example demonstrates that the adaptive design and assembly can greatly improve the design quality and efficiency of screws and dowels in the inserts of automotive stamping dies.

Funds：

武汉科技大学冶金装备及其控制教育部重点实验室开放基金资助项目(2015B08)

作者简介：李贵(1983-), 男, 博士, 讲师，E-mail：leegui2030@wust.edu.cn

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