A Method for Simultaneously Measuring 6DOF Geometric Motion Errors of Linear and Rotary Axes Using Lasers
A novel method for simultaneously directly measuring six-degrees-of-freedom (6DOF) geometric motion errors of CNC machine tools was proposed, and a corresponding measurement system was developed. This method can not only be applied for measuring a linear axis, but also for a rotary axis. A single-mo...
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doaj-6d17e7bbd2444e5eac972f1922e80f382020-11-24T21:21:14ZengMDPI AGSensors1424-82202019-04-01198176410.3390/s19081764s19081764A Method for Simultaneously Measuring 6DOF Geometric Motion Errors of Linear and Rotary Axes Using LasersFajia Zheng0Qibo Feng1Bin Zhang2Jiakun Li3Key Lab of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Lab of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Lab of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaKey Lab of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, ChinaA novel method for simultaneously directly measuring six-degrees-of-freedom (6DOF) geometric motion errors of CNC machine tools was proposed, and a corresponding measurement system was developed. This method can not only be applied for measuring a linear axis, but also for a rotary axis. A single-mode fiber was used to separate the measuring unit from the laser source in order to ensure system thermal stability and measurement accuracy. The method has the advantages of high efficiency and good accuracy, and requires no complicated decoupling calculation. The positioning error of the linear axis and radial motion error of the rotary axis are measured by laser interferometry and other 5DOF geometric motion errors by laser collimation. A series of experiments were performed to verify the feasibility and effectiveness of the developed measurement system.https://www.mdpi.com/1424-8220/19/8/17646DOF geometric motion errorsmeasurementlinear axisrotary axisCNC machine tools |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Fajia Zheng Qibo Feng Bin Zhang Jiakun Li |
spellingShingle |
Fajia Zheng Qibo Feng Bin Zhang Jiakun Li A Method for Simultaneously Measuring 6DOF Geometric Motion Errors of Linear and Rotary Axes Using Lasers Sensors 6DOF geometric motion errors measurement linear axis rotary axis CNC machine tools |
author_facet |
Fajia Zheng Qibo Feng Bin Zhang Jiakun Li |
author_sort |
Fajia Zheng |
title |
A Method for Simultaneously Measuring 6DOF Geometric Motion Errors of Linear and Rotary Axes Using Lasers |
title_short |
A Method for Simultaneously Measuring 6DOF Geometric Motion Errors of Linear and Rotary Axes Using Lasers |
title_full |
A Method for Simultaneously Measuring 6DOF Geometric Motion Errors of Linear and Rotary Axes Using Lasers |
title_fullStr |
A Method for Simultaneously Measuring 6DOF Geometric Motion Errors of Linear and Rotary Axes Using Lasers |
title_full_unstemmed |
A Method for Simultaneously Measuring 6DOF Geometric Motion Errors of Linear and Rotary Axes Using Lasers |
title_sort |
method for simultaneously measuring 6dof geometric motion errors of linear and rotary axes using lasers |
publisher |
MDPI AG |
series |
Sensors |
issn |
1424-8220 |
publishDate |
2019-04-01 |
description |
A novel method for simultaneously directly measuring six-degrees-of-freedom (6DOF) geometric motion errors of CNC machine tools was proposed, and a corresponding measurement system was developed. This method can not only be applied for measuring a linear axis, but also for a rotary axis. A single-mode fiber was used to separate the measuring unit from the laser source in order to ensure system thermal stability and measurement accuracy. The method has the advantages of high efficiency and good accuracy, and requires no complicated decoupling calculation. The positioning error of the linear axis and radial motion error of the rotary axis are measured by laser interferometry and other 5DOF geometric motion errors by laser collimation. A series of experiments were performed to verify the feasibility and effectiveness of the developed measurement system. |
topic |
6DOF geometric motion errors measurement linear axis rotary axis CNC machine tools |
url |
https://www.mdpi.com/1424-8220/19/8/1764 |
work_keys_str_mv |
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