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Servo Mismatch Estimation of Miniaturized Machine Tools Using Laser Tracker
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 Title & Authors
Servo Mismatch Estimation of Miniaturized Machine Tools Using Laser Tracker
Lee, Hoon Hee; Kweon, Sung Hwan; Son, Jin Gwan; Yang, Seung Han;
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 Abstract
Servo mismatch, which affects positioning accuracy of multi-axis machine tools, is usually estimated via the circular test. However, due to mechanical restrictions in measuring instruments, the circular test using a double ball-bar is difficult to apply in miniaturized or super-large sized machine tools. Laser trackers are widely used to measure the form accuracy of parts and the positioning accuracy of driving systems. In this paper, a technique for the servo mismatch estimation of multi-axis machine tools is proposed via the circular test using a laser tracker. To verify the proposed technique, experiments using a double ball-bar and laser tracker are conducted in a 3-axis machine tool. The difference in the evaluation results is 0.05 msec. The servo mismatch for the miniaturized machine tool is also evaluated using the proposed technique.
 Keywords
Laser tracker;Miniaturized machine tool;Circular test;Servo mismatch;
 Language
Korean
 Cited by
 References
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