| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a spindle condition detection device for a machine tool, which makes it possible to appropriately ascertain a condition related to the operating life of a bearing for a spindle. <P>SOLUTION: The spindle condition detection device for a machine tool includes: bearing load detecting means 16, 17 for detecting a load on a bearing 14 that rotatably supports a spindle 12 of the machine tool; and present usage ratio calculating means 30 for calculating, based on the load detected by bearing load detecting means 16, 17, a present usage ratio that is a ratio of usage of the bearing 14 with respect to a prescribed operating life of the bearing 14, which is achieved over a period until a present moment. <P>COPYRIGHT: (C)2012,JPO&INPIT |
