Transactions of Materials and Heat Treatment

Title：Forming principle of spring for multistation spring forming machine

Authors： Li Fan Wang Decheng Cheng Peng Zhang Rui Fu Tao

Unit： China Academy of Machinery Science and Technology University of Science and Technology Beijing

KeyWords： spring forming machine spring structure bending helix break angle

ClassificationCode：TG306

year,vol(issue):pagenumber：2017,42(3):73-77

Abstract：

The multi-station spring forming machine is a kind of spring forming equipment which is suitable for various types of springs processing. Firstly, the mechanical structure of the multi-station spring forming machine was studied, and then the structure of forming mechanism and its principles were analyzed. Based on the analysis of geometric features, the structures of springs were divided, and their parametric equations were established. According to the principle of shaping mechanism and geometric features of the springs, it was studied the forming principles of helix and angle, and then the mathematical models of the forming axis feeds and the geometrical dimensions of springs were established. Therefore, the forming principle of cylindrical helix and taper helix was firstly presented, and the mathematical relationship equation between radius and pitch of the helix and the feeding of the forming axis and the wire was built. Furthermore, four methods on angle forming were proposed, and the mathematical relationship equation between the radius and angle and the feeding of the forming axis was established as well.

Funds：

“国家质量基础的共性技术研究与应用”重点专项（2016YFF0202100）

李凡（1992-），男，硕士研究生王德成（1962-），男，博士，研究员，博士生导师

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