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タイトル: A new formulation of laser step diagonal measurement—Three-dimensional case
著者: Ibaraki, Soichi  kyouindb  KAKEN_id
Hata, Takafumi
著者名の別形: 茨木, 創一
キーワード: Step diagonal measurement
Volumetric accuracy
Laser interferometer
Machine tools
Measurement
発行日: Jul-2010
誌名: Precision Engineering
巻: 34
号: 3
開始ページ: 516
終了ページ: 525
抄録: To ensure the motion accuracy of a machine tool over its entire three-dimensional workspace, it is important to evaluate all the volumetric errors associated with three linear axes including three linear displacement errors, six straightness errors and three squareness errors. The laser step diagonal measurement modifies the diagonal displacement measurement, described in the standard ISO 230-6, by executing a diagonal as a sequence of single-axis motions. It has been claimed that the step diagonal test enables the identification of all the volumetric error components by using a linear laser interferometer only. This paper first shows that the conventional formulation of step diagonal measurements is potentially subject to a significant estimation error caused by setup errors in mirror and laser directions. We then propose a new formulation of laser step diagonal measurement, in order to accurately identify three-dimensional volumetric errors even under the existence of setup errors. The effectiveness of the modified identification scheme is experimentally investigated by an application example of three-dimensional laser step diagonal measurements to a high-precision vertical machining center.
目次: © 2010 Elsevier B.V.
著作権等: 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/2433/113249
DOI(出版社版): 10.1016/j.precisioneng.2010.02.004
出現コレクション:学術雑誌掲載論文等

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