A new design method based on feature reusing of the non-standard cam structure for automotive panels stamping dies
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The cam die is one of the most complicated types of automotive panel stamping dies. It is hard to achieve parametric and automated design of the non-standard cam, which determines the quality and cost of die design. The cam design process is extremely complex and requires a great deal of professional knowledge. A new design system for non-standard cams based on the feature reuse and group assembly technology was researched and developed in this paper for automotive panel dies. Taking the advantage of the well-organized historical knowledge base and features database of non-standard cam design cases and the seamless integration with the NX platform, the system was able to generate designs of the die substructure with cam in the form of assembly, including the driver, slider, stripper, cam base, and types of standard components such as nitrogen cylinders, guide plates, stopper seats, return hooks, safety pulling plates, and other parts. Finally, an engineering example of a cam trimming die for body side outer panel verified the feasibility and validity of this system. Comparisons with different design methods demonstrate that the newly developed system shows excellent performance in the design of complex non-standard cams for automotive panels.
KeywordsNon-standard cams Feature reusing Stamping dies Substructure Group assembly NX
This work is supported by National Natural Science Foundation of China (Grant Number 51505348), Open Research Fund of State Key Laboratory of Material Processing and Die & Mould Technology (Huazhong University of Science and Technology, Grant Number P2016-15), and Open Research Fund of the Key Laboratory of Metallurgical Equipment and Control technology of Education Ministry (Wuhan University of Science and Technology, Grant Number 2015B08). We express our thanks to Dongfeng Motor Die & Mould Co., Ltd for their great support during the project.
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