Effects of geometrical errors of guideways on the repeatability of positioning of linear axes of machine tools

被引：28
|
作者：
Sun, Guangming [1 ]
He, Gaiyun [1 ]
Zhang, Dawei [1 ]
Sang, Yicun [1 ]
Zhang, Xiaolei [1 ]
Ding, Bohui [1 ]
机构：
[1] Tianjin Univ, Key Lab Mech Theory & Equipment Design, Minist Educ, Tianjin 300072, Peoples R China
来源：
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2018年 / 98卷 / 9-12期
基金：
中国国家自然科学基金;
关键词：
Repeatability of positioning; Geometric error; Machine tools; Linear axes; ADJUSTMENT; CENTERS;
D O I：
10.1007/s00170-018-2291-4
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper studies the effects of geometrical errors on the repeatability of positioning of linear axes, based on theoretical modeling and an experimental study. Firstly, this paper elaborates on the mechanism of repeatability of positioning that is affected by motion pose of moving part. Secondly, a mathematical model is proposed between the geometrical error and motion pose of the moving part, based on point-by-point recursion. Subsequently, the influence of geometrical errors on the repeatability of positioning of the linear axes is obtained based on GA (genetic algorithm). Finally, the effectiveness of the proposed model is validated experimentally, and an assembly method for improving the repeatability of positioning is proposed. The method can provide designers and/or field engineers with informative guidelines for improving the repeatability of positioning in the design, manufacturing, and assembly processes.
引用
收藏
页码：2319 / 2333
页数：15
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