- 专利标题: Measuring method and device of machine accuracy in machine tool
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申请号: US15451439申请日: 2017-03-07
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公开(公告)号: US10378872B2公开(公告)日: 2019-08-13
- 发明人: Tomoki Sakai
- 申请人: NAKAMURA-TOME PRECISION INDUSTRY CO., LTD.
- 申请人地址: JP Hakusan-Shi, Ishikawa
- 专利权人: NAKAMURA-TOME PRECISION INDUSTRY CO., LTD.
- 当前专利权人: NAKAMURA-TOME PRECISION INDUSTRY CO., LTD.
- 当前专利权人地址: JP Hakusan-Shi, Ishikawa
- 代理机构: Bacon & Thomas, PLLC
- 优先权: JP2016-043336 20160307
- 主分类号: B23Q17/00
- IPC分类号: B23Q17/00 ; G01B21/04 ; G01B5/012
摘要:
A method and a device can measure machine error of an axis of rotation in a tool post having a touch probe without restriction of an angular range of an angle of rotation. Directions of a measurement plane and a measurement axis in a five-axis measurement are switched in correspondence to a range of the angle of rotation in a touch probe. The five-axis measurement is carried out by setting a position in a direction of a measurement axis in a measurement plane to a position where a reference sphere does not interfere with a lever rod of the touch probe as occasion demands. The five-axis measurement is carried out, for example, by setting the measurement plane to a position which is perpendicular to a line connecting an estimated center of the reference sphere and a center of a tip sphere or the lever rod of the touch probe.