双转台五轴机床旋转轴位置无关几何误差的辨识

doi:10.3969/j.issn.1004-132X.2023.21.007

中国机械工程 ›› 2023, Vol. 34 ›› Issue (21): 2585-2591.DOI: 10.3969/j.issn.1004-132X.2023.21.007

双转台五轴机床旋转轴位置无关几何误差的辨识

梁小冰1，2，3;卢耀安1，2，3;王成勇1，2，3

1.广东工业大学机电工程学院，广州，510006
2.广东工业大学广东省微创手术器械设计与精密制造重点实验室，广州，510006
3.高性能工具全国重点实验室，广州，510006

出版日期:2023-11-10 发布日期:2023-11-29
通讯作者: 卢耀安（通信作者），男，1988年生，副教授。研究方向为数控加工技术、机床误差测量与辨识。E-mail：luyaoan@gdut.edu.cn。
作者简介:梁小冰，女，1995年生，硕士研究生。研究方向为机床误差测量与辨识。
基金资助:
广州市基础与应用基础研究项目(202201010355)；佛山市核心技术攻关项目(1920001000818)

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

LIANG Xiaobing1，2，3;LU Yaoan1，2，3;WANG Chengyong1，2，3

1.School of Electromechanical Engineering，Guangdong University of Technology，Guangzhou，510006
2.Guangdong Provincial Key Laboratory of Minimally Invasive Surgical Instruments and
Manufacturing Technology，Guangdong University of Technology，Guangzhou，510006
3.State Key Laboratory for High Performance Tools，Guangzhou，510006

Online:2023-11-10 Published:2023-11-29

摘要/Abstract

摘要： 旋转轴的位置无关几何误差（PIGEs）是影响五轴机床加工精度的重要因素。以AC双转台五轴机床为研究对象，提出一种基于差分演化算法的旋转轴PIGEs辨识方法。首先，建立机床旋转轴PIGEs和球杆仪杆长变化的关系模型，使用已有的辨识方法获得机床旋转轴PIGEs初始解，然后定义优化目标函数，通过差分演化算法整体优化求解旋转轴PIGEs，提高旋转轴PIGEs辨识准确性。实验与仿真的结果表明提出的旋转轴PIGEs辨识方法可有效提高辨识准确性。

关键词: 位置无关几何误差, 旋转轴误差辨识, 五轴机床, 球杆仪

Abstract: 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.

Key words: position-independent geometric error（PIGE）, identification method of rotary axes, five-axis machine tool, double ball bar

中图分类号:

TH161

梁小冰, 卢耀安, 王成勇, . 双转台五轴机床旋转轴位置无关几何误差的辨识[J]. 中国机械工程, 2023, 34(21): 2585-2591.

LIANG Xiaobing, LU Yaoan, WANG Chengyong, . Identification of Position-independent Geometric Errors for Rotary Axes of Five-axis Table-tilting Machine Tools[J]. China Mechanical Engineering, 2023, 34(21): 2585-2591.

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双转台五轴机床旋转轴位置无关几何误差的辨识

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

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