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j.precisioneng.2012.07.012.pdf1.94 MBAdobe PDF見る/開く
タイトル: Non-contact R-test with laser displacement sensors for error calibration of five-axis machine tools
著者: Hong, Cefu
Ibaraki, Soichi  kyouindb  KAKEN_id
著者名の別形: 茨木, 創一
キーワード: R-test
Error calibration
Dynamic measurement
Five-axis machine tool
Laser displacement sensor
発行日: Jan-2013
出版者: Elsevier Inc.
誌名: Precision Engineering
巻: 37
号: 1
開始ページ: 159
終了ページ: 171
抄録: The R-test is an instrument to measure three-dimensional displacement of a precision sphere attached to a spindle relative to a work table by using three displacement sensors. Its application to error calibration for five-axis machine tools has been studied in both academia and industry. For the simplicity in calculating the sphere center displacement, all conventional R-test devices use contact-type displacement sensors with a flat-ended probe. Conventional contact-type R-test may be potentially subject to the influence of the friction or the dynamics of supporting spring in displacement sensors particularly in dynamic measurement. This paper proposes a non-contact R-test with laser displacement sensors. First, a new algorithm is proposed to calculate the three-dimensional displacement of sphere center by using non-contact displacement sensors. The compensation of measurement error of a laser displacement sensor due to the curvature of target sphere is incorporated. Then, the measurement uncertainty of four laser displacement sensors with different measuring principles is experimentally investigated in measuring the geometry of a sphere in order to select the laser displacement sensor most suitable for the application to a non-contact R-test. A prototype non-contact R-test device is developed for the verification of the proposed algorithm for non-contact R-test. Experimental case studies of error calibration of (1) static and (2) dynamic error motions of rotary axes in a five-axis machine tool with the developed non-contact R-test prototype are presented. Its measurement performance is compared to the conventional contact-type R-test device.
著作権等: © 2012 Elsevier Inc.
この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。This is not the published version. Please cite only the published version.
URI: http://hdl.handle.net/2433/162006
DOI(出版社版): 10.1016/j.precisioneng.2012.07.012
出現コレクション:学術雑誌掲載論文等

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