Transactions of Materials and Heat Treatment

Title：Design of mechanical subassembly with multi-point variable blank holder force

Authors： ZHANG Bin XIE Jun LIU Yong-qiang(Department of Mechanical and Electronical Taizhou Polytech Colleage Taizhou 225300 China)

Unit：

KeyWords： variable blank holder force(VBHF) cam mechanism gear rack mechanism

ClassificationCode：TG386.2

year,vol(issue):pagenumber：2009,34(2):64-66

Abstract：

By analyzing the trends of present multi-point variable blank holder force(VBHF) mechanism research,a mechanical subassembly with multi-point VBHF which made up of gear rack mechanism,cam mechanism,and belleville springs was designed.The subassembly used the gear rack mechanism to change the movement of top slider into the rotation of cam.The different deformations were got by changing the cam profile curve,initial position and rotating angle and the expected changes in the BHF were achieved.The subassembly's structure and its working process were presented.

Funds：

Reference：

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