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ファイル | 記述 | サイズ | フォーマット | |
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j.precisioneng.2012.07.012.pdf | 1.94 MB | Adobe 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 |
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. This is not the published version. Please cite only the published version. 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。 |
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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