Laser R-Test for Angular Positioning Calibration and Compensation of the Five-Axis Machine Tools

被引:7
|
作者
Tran, Cao-Sang [1 ]
Hsieh, Tung-Hsien [2 ]
Jywe, Wen-Yuh [3 ]
机构
[1] Natl Formosa Univ, Dept Power Mech Engn, Huwei Township 632301, Yunlin, Taiwan
[2] Natl Formosa Univ, Smart Machinery & Intelligent Mfg Res Ctr, Dept Automat Engn, Huwei Township 632301, Yunlin, Taiwan
[3] Natl Taiwan Univ, Dept Mech Engn, Taipei 10617, Taiwan
来源
APPLIED SCIENCES-BASEL | 2021年 / 11卷 / 20期
关键词
angular positioning calibration; Laser R-test; five-axis machine tools; ISO; 230-2; ERROR MEASUREMENT; GEOMETRIC ERRORS; IDENTIFICATION; MODEL;
D O I
10.3390/app11209507
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The angular positioning error of the rotary stage causes low quality in milling various angles of a workpiece. This study proposes a solution that could improve these issues by using our Laser R-test for angular positioning calibration and compensation of the five-axis machine tools in compliance with the simultaneous measurement path of ISO regulations: ISO 10791-6 and ISO 230-2. System uncertainty analysis and calibration were implemented for system prediction. The measurement method proposed in this paper could solve concentricity problems between measurement devices and the rotary table by applying the Cosine theorem with a Cartesian coordinate system. Further, we used the commercial instrument XR20-W (Renishaw, UK) rotary axis calibrator to verify and compare the measured results on a CNC machine tool. The applied system achieves an angular error of 0.0121 degrees for actual workpieces and is smaller than the referring commercial system, which achieves an error of about 0.0022 degrees. The system in this research is useful for five-axis machine tool full calibrations.
引用
收藏
页数:21
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