| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a clamp device of an index table by which large clamp force can be obtained even in the case of the index table in which lubricant is encapsulated, or grease is applied.SOLUTION: In an index table comprising: a spindle 12 which is rotatably supported to a body 10 centering on a rotational axis J via a bearing 11; an elastically deforming thin doughnut-shaped fixation plate 13 fixed to the body 10 inside a radial direction of the body 10; and an elastically deforming thin doughnut-shaped rotation plate 14 fixed to the spindle 12 outside a radial direction of the spindle 12, either one of the rotation plate or the fixation plate has a notch part outside a radial direction, the inner vicinity in the radial direction of the fixation plate and the outer vicinity in the radial direction of the rotation plate have overlapping parts which are overlapped with each other by external force, and the overlapping parts are constituted so as not to cover the entire notch part.</p> |
