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Date of Publication:2022-10-07

Journal:仪器仪表学报

Affiliation of Author(s):机械工程学院

Issue:3

Page Number:691-696

ISSN No.:0254-3087

Abstract:In order to solve the problem that the measurement position is difficult to be arranged on the gear reference circle in ultra-precision gear pitch measurement, the theoretical analysis and experiment study were conducted on the effects of the probe diameter and the measurement position parameter on the measurement of the gear pitch cumulative deviation. First, the mapping relationship between the probe diameter, the measurement position parameter and the gear total cumulative pitch deviation is established. Then the error compensation coefficient of the measurement position in gear pitch cumulative deviation measurement is deduced. Finally, a group of precision tests prove that the indicating values of the gear pitch deviations obtained on different measurement circles are different; however, the gear total cumulative pitch deviations, which are calculated by introducing the error compensation coefficient of the measurement position and are converted to the reference circle of the gear under test, are basically consistent. The maximum difference of two gear total cumulative pitch deviations obtained on different measurement circles is only 0.09 μm and the mean difference is only 0.04 μm in this example. The experiment results show the correctness of the proposed error compensation model and effectiveness of the error compensation method of the measurement position in ultra-precision gear pitch deviation measurement.

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