发明公开
- 专利标题： CALIBRATION DEVICE AND METHOD
- 专利标题（中）： 校准装置和方法
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申请号： EP16150852.8申请日： 2016-01-12
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公开(公告)号： EP3192611A1公开(公告)日： 2017-07-19
- 发明人: Hammond, Peter, Russell
- 申请人： Renishaw plc , Metrology Software Products Limited
- 申请人地址： New Mills Wotton-under-Edge Gloucestershire GL12 8JR GB
- 专利权人： Renishaw plc,Metrology Software Products Limited
- 当前专利权人： Renishaw plc,Metrology Software Products Limited
- 当前专利权人地址： New Mills Wotton-under-Edge Gloucestershire GL12 8JR GB
- 代理机构： Dunn, Paul Edward
- 主分类号： B23Q17/22
- IPC分类号： B23Q17/22 ; G01B21/04 ; G01B3/22 ; G05B19/401
摘要：
A calibration device (30) for a machine tool is described that includes a base (36) attachable to a machine tool and a calibration artefact (32), such as a sphere of known radius. A deflection mechanism attaches the calibration artefact to the base and allows movement of the calibration artefact (32) relative to the base (36) when an external force is applied to the calibration artefact (32). The deflection mechanism also maintains the calibration artefact (32) in a defined rest position relative to the base (36) in the absence of an applied external force. A sensor (46) is provided for sensing the extent of movement of the calibration artefact (32) relative to the base (36). A method of using the device (30) with a reference tool to accurately determine a position of a calibration artefact (32) is also described.
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