Chuck device |
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| 申请号 | JP4449588 | 申请日 | 1988-02-29 | 公开(公告)号 | JPH01222806A | 公开(公告)日 | 1989-09-06 |
| 申请人 | Sanden Corp; | 发明人 | KAWANO SATORU; KIMURA YOSHIO; FUKUSHIMA EIJI; | ||||
| 摘要 | PURPOSE:To surely machine a tow-dimensional shaped groove and a projection with respect to the center of a disk in a chuck device which is installed on a numerically controlled milling board, etc. by holding a workpiece having the disk shaped portion in a centered condition. CONSTITUTION:A workpiece 7 is placed on a workpiece placing portion 5 with the positioning circular hole 72 thereof being fitted on a pin having a rhombic section. After that, a movable claw 3 is moved along an X axis to fix the workpiece 7 between fixing claws 4 and the movable claw 3. At this time, since the pin 6 is provided on the X axis of the X-Y axes the centers of which are the original point of the chuck 2, the rotation of the workpiece 7 will not take place during machining. As for the shape of the pin 6, the dimension in the direction conforming to the X axis is larger than the dimension in the direction perpendicular to the X axis, if the relative position to an end mill tool is conformed to the previously set original point of a computer program for controlling the center of the workpiece 7 with the center of the master workpiece, the shifting of center in the X axis direction can be suppressed to half the dispersion of the workpiece 7. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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