| 摘要 |
<p>The invention relates to a power-operated chuck (100) for a tool spindle of a machine tool, in particular a lathe, comprising a chuck body (11) and at least one chucking device (10, 10a, 10b, 10c) which is guided in a radial guide of the chuck body (11) and which, for exerting a desired chucking force on a workpiece chucked in the chuck (100), can be adjusted relative to the chuck body (11) by a chucking-force generator via at least one drive member arranged in the chuck body (11). In order to ensure, in a manner which is simple to realize but is nonetheless effective, that a machining operation is carried out only under predetermined conditions, it is provided according to the invention that the at least one chucking device (10, 10a, 10b, 10c) has a measuring device (14) for measuring a chucking force exerted by the chucking device (10, 10a, 10b, 10c) on the workpiece chucked in the chuck (100) and an evaluating device (12) for evaluating the chucking force measured by the measuring device (14).</p> |
