Open AccessTheoretical Research on the Uniformity of Planetary Side Lapping Trajectory
Author(s) -
Yaoyu Wu
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/790/1/012169
Subject(s) - lapping , grinding , trajectory , kinematics , process (computing) , mechanical engineering , function (biology) , surface (topology) , materials science , gear ratio , point (geometry) , abrasive , constant (computer programming) , optics , computer science , mechanics , physics , mathematics , geometry , classical mechanics , engineering , astronomy , evolutionary biology , biology , operating system , programming language
The reduction to absurdity is adopted to analyze equation of planetary double-side lapping motion built by kinematics, and study the important parameter in the process of lapping-I (the ratio of grinding disc and the inner pin ring in rotary speed) satisfies the condition of uniformity of lapping trajectory of a point in workpiece relative to surface of grinding disc. The results show the ratio I that meet uniformity of lapping trajectory is a function of time t. On the other hand, for a given planetary double-side lapping machine, the I of constant ratio (rational or irrational) that satisfies uniformity of lappingtrajectory does not exist unless it continues to change over the time. This research has laid a theoretical foundation for the further studying in uniformity of lapping trajectory, and also provided a new idea and method for the analysis of relative velocity between workpiece and grinding wheel, the wear uniformity of grinding wheel, and the study of workpiece surface quality.