Transactions of Materials and Heat Treatment

Title：Design of pneumatic balancing device for incremental forming

Authors： Zhang Hao Gao Lin Wang Huiting

Unit： Nanjing University of Aeronautics and Astronautics Anhui University of Technology

KeyWords： incremental forming sheet bracket pneumatic balancing device

ClassificationCode：TG385

year,vol(issue):pagenumber：2015,40(12):50-54

Abstract：

It was introduced the characteristics and advantages of NC incremental sheet forming, and the typical incremental forming methods were listed. Then, the role of the sheet bracket was described, and the types of sheet metal bracket were listed. When the small-size sheet metal parts were made, the positive forming could be easily realized by some simple fixtures (two points incremental forming). However, for medium and large panels, higher precision sheet metal bracket was needed to ensure the quality of the workpiece forming. Inspired by the idea of pneumatic balancing, a new kind of sheet metal bracket with air cylinder floating was designed. Further, the rationality of the structure was analyzed, and a unique pneumatic system was designed. The value of pressure increasing caused by dropping of sheet metal bracket was calculated, and a formula of calculating storage volume was deduced to meet the requirements of positive incremental forming and industrial production. By describing the implementation plan of the pneumatic balancing device, the condition of pneumatic pressure for the positive incremental forming was obtained. The positive forming experiment was tested, and the forming effect of pneumatic balance bracket was confirmed.

Funds：

国家自然科学基金资助项目（51275003）

作者简介：张浩（1991-），男，硕士研究生通讯作者：高霖(1954-)，男，博士，教授

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