Optimal Design of Contact Probes for Three-dimensional Thread Measuring Machines

被引：0
|
作者：
Yang Y. [1 ]
Yu J. [1 ]
Lin X. [1 ]
Cai J. [1 ]
机构：
[1] School of Metrology and Testing Engineering, China Jiliang University, Hangzhou
来源：
Zhongguo Jixie Gongcheng/China Mechanical Engineering | 2021年 / 32卷 / 15期
关键词：
Calibration; Contact probe; Orthogonal test; Structure optimization; Three-dimensional thread comprehensive measuring machine;
D O I：
10.3969/j.issn.1004-132X.2021.15.006
中图分类号：
学科分类号：
摘要：
In order to reduce the influences of the contact probes on the accuracy of the high-precision three-dimensional thread measuring machines, an optimization plan for the structure and size of the contact probes was designed, and the corresponding calibration method was proposed. The structural parameters of the probes were optimized through finite element simulation and orthogonal experiments to determine the optimal structural parameters. The calibration model of the probes was established by the coordinate transformation theory and the principle of least square method and the calibration experiments were carried out. The optimized probes were tested through the screw plug gauge comparison experiments and the screw ring gauge and plug gauge comparison experiments under different preloads. The results show that the standard deviation of the parameters of the contact probe measuring thread plug gauge and ring gauge is about 1 μm, which meets the measurement accuracy requirements of the contact probes of the three-dimensional thread comprehensive measuring machines. The optimization scheme and calibration method provide important theoretical basis for the design of the probe structures. © 2021, China Mechanical Engineering Magazine Office. All right reserved.
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页码：1812 / 1817
页数：5
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