Identification of Position-independent Geometric Errors for Rotary Axes of Five-axis Table-tilting Machine Tools

被引:0
|
作者
Liang X. [1 ,2 ,3 ]
Lu Y. [1 ,2 ,3 ]
Wang C. [1 ,2 ,3 ]
机构
[1] School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou
[2] Guangdong Provincial Key Laboratory of Minimally Invasive Surgical Instruments and Manufacturing Technology, Guangdong University of Technology, Guangzhou
[3] State Key Laboratory for High Performance Tools, Guangzhou
关键词
double ball bar; five-axis machine tool; identification method of rotary axes; position-independent geometric error(PIGE);
D O I
10.3969/j.issn.1004-132X.2023.21.007
中图分类号
学科分类号
摘要
PIGEs of rotary axes were the important factors that affected the machining accuracy of five-axis machine tools. Taking AC type five-axis table-tilting machine tools as an example, an identification method of PIGEs of rotary axes was proposed based on the differential evolution algorithm. Firstly, a mathematical model of PIGEs and length change of ball bar was established. The initial PIGEs may be identified by existing methods. Then, an optimization objective function was defined, and the PIGEs of the rotary axes were optimized as a whole by a differential evolution algorithm to improve the identification accuracy of the rotary axes PIGEs. The experimental and simulation results show that the proposed method may effectively improve the identification accuracy of the PIGEs of the rotary axes. © 2023 China Mechanical Engineering Magazine Office. All rights reserved.
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页码:2585 / 2591
页数:6
相关论文
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