High accuracy clamping is possible with both center basis of low rigidity shaft work, even if it has large difference of thickness or diameter.

Conventional compensating is a mechanism in which the actuator is divided into a shaft part and a boosting part, and the jaws move freely within the clearance range. Due to the slight difference in frictional resistance of each sliding part, the run-out accuracy of a low-rigidity work-peice set by both centers increases. Moreover, the jaws must be replaced each time the work-piece diameter changes.
Since all floating pins of the multi-jaw compensating chuck have an even clamping force over all strokes, even low-rigidity and uneven thickness against both centers or multiple workpieces with large diameter differences can be clamped with high accuracy without change-over.

Features

• High accuracy compensating clamping for low rigidity shaft work-pieces
• Wide range of clamping is realized without setup