Abstract
Geometric errors are the main reason for the inaccuracy of all machines. Measuring these errors and compensating for them will enhance the accuracy of machines themselves. This paper proposes a new systematic methodology to measure generalized geometric errors of a novel coordinate measuring machine based on a laser tracker that can obtain a full pose of measured points. Based on this methodology, a computer program has been developed that can perform error analysis on any serial link. This methodology is applied to the error analysis of a new type of coordinate measuring machine, which has two rotary joints and one linear joint. The obtained results show that generalized geometric errors can be successfully identified, and the accuracy of the experimented machine is considerably improved, thereby reducing maximum position errors from a few millimeters to approximately 50 μm after error compensation.
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This work was supported by a grant from Inje University for the Research in 2015(20150498).
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Vo, A., Tran, N., Duong, T. et al. A New Method for Measuring Generalized Geometric Errors for a New Type of Coordinate Measuring Machine Using a Laser Tracker. Exp Tech 41, 463–473 (2017). https://doi.org/10.1007/s40799-017-0186-1
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DOI: https://doi.org/10.1007/s40799-017-0186-1