发明名称 |
Method and apparatus for correcting thermal displacement of machine tool |
摘要 |
<p>A method corrects thermal displacement of a machine tool having a rotational spindle. The method includes detecting a rotation speed of the spindle. A thermal displacement amount of the spindle in the current cycle of execution of a program is estimated by using an arithmetic expression that is based at least on the spindle rotation speed and a thermal displacement amount that has been estimated in the preceding cycle of execution of the program. The estimated thermal displacement amount in the current cycle is used as a correction amount for canceling the thermal displacement of the spindle. Therefore, thermal displacement of a machine tool is corrected with no complicated processes when a spindle rotation speed changes.</p> |
申请公布号 |
EP1650620(A3) |
申请公布日期 |
2007.04.18 |
申请号 |
EP20050256511 |
申请日期 |
2005.10.20 |
申请人 |
YAMAZAKI MAZAK CORPORATION |
发明人 |
SUZUKI, YASUHIKO;TANAHASHI, MAKOTO |
分类号 |
G05B19/404;B23Q15/18;G05B19/4155 |
主分类号 |
G05B19/404 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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