| 摘要 |
A machine for machining a workpiece with at least one revolving or rotating tool has a work spindle with a shaft ( 5 ), whose temperature is monitored by means of at least one temperature sensor ( 26 ). The temperature sensor is detected in contactless fashion. The sensor ( 26 ) is preferably a radiation-sensitive sensor, which detects the temperature radiation output. by the shaft ( 5 ). In triggering the positioning drive mechanisms, the control unit ( 35 ) of the machine ( 1 ) takes into account the temperature expansions of the shaft ( 5 ) that result from the temperature changes in the shaft. The positioning drive mechanisms serve to position a tool ( 6 ), carried by the shaft ( 5 ), relative to the workpiece ( 2 ). A machining precision is thus achieved that is independent of the temperature and temperature changes of the machine ( 1 ) overall, of temperature changes in the coolant-lubricant, and of temperature changes in the tool ( 6 ) and the shaft ( 5 ), that can all be caused by the power converted at the machining site.
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