| 摘要 |
A force limiting workpiece holding device (10) for holding a workpiece in a workpiece processing assembly (12) having a spindle (22) and a closer (16) that applies a force, comprises a workpiece holder (14) slidably mounted to the spindle (22). The workpiece holder (14) includes a plurality of circumferentially-spaced gripping segments (32) that are movable between expanded and contracted positions to grip and release a workpiece. A force limiting coupling structure (20) includes a biasing structure (82) having a spring force. The coupling structure (20) is operatively mountable between the workpiece holder (14) and the closer (16) such that a force applied by the closer (16) to move the gripping segments (32) of the workpiece holder (14) between the expanded and contracted positions is transferred to the workpiece holder (14) through the coupling structure (20) and the biasing structure (82) thereof, whereby a resultant force being applied to the workpiece holder by the closer is limited to the spring force of the biasing structure. |
