Flexible Machining and Precision Control Method of Tooth Flank Topological Modification for Worm Wheel Gear Grinding

doi:10.3901/JME.2025.17.360

Abstract

Abstract: In order to solve the problem of tooth flank accuracy error that exists when grinding helical gears with worm wheel for topological modification, a topological modification method based on flexible electronic gearbox is proposed. First of all, according to the forming principle of involute tooth flank and topological modification curve, the mathematical models of standard involute tooth flank and double drum modification tooth flank are established. Secondly, the kinematic inverse solution method is applied to derive the additional motions of each axis corresponding to the topological modification tooth flank. Since the multi-axis linkage synchronization control of machine tool in the process of generating gear grinding is realized by the control of electronic gearbox, the additional motion amount is proposed to be added in the control model of electronic gearbox. Finally, numerical simulation of tooth flank modification is carried out to compare the tooth flank deviation obtained by traditional modification method and the tooth flank modification method based on flexible electronic gearbox through two numerical simulation examples. The results show that this method can effectively improve the tooth flank modification accuracy of gear grinding with worm wheel.

Key words: worm wheel gear grinding, topographical modification, electronic gearbox, helical gear

CLC Number:

TG616

HAN Jiang, JIANG Hong, LU Yiguo, TIAN Xiaoqing, XIA Lian. Flexible Machining and Precision Control Method of Tooth Flank Topological Modification for Worm Wheel Gear Grinding[J]. Journal of Mechanical Engineering, 2025, 61(17): 360-370.

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