Special collet chucks for internal clamping rotating, pressure-spring clamping

Description:
We produce rotating clamping fixtures for expanding collets with pressure-spring clamping. The axially fixed expanding collet is opened by the forward movement of the mandrels by means of pressure springs, and the workpiece is clamped. The expanding collet is unclamped by compressed air, which pushes the mandrel backwards, thereby closing the expanding collet.

The compressed air is fed in via a stationary distributor ring. The clamping fixture may only be used if the spindle is stationary, to avoid damage to the distributor ring. The expanding collet is exchanged in unclamped condition.

With these very compact collet chucks with pressure-spring clamping, only minimal clamping forces are attained. They are therefore unsuitable if large forces are applied to the workpiece for clamping. These devices are used especially in the laser marking and laser welding machine sector, and as test spindles.

These collet chucks are manufactured according to customer drawings or to our own designs within the shortest of deadlines.

Facts and figures:

• for expanding collets
• clamping with pressure springs
• pneumatic unclamping via distributor ring
• various sizes and clamping ranges
• any fixtures
• clamping pressure 6 bar

Please don’t hesitate to contact us. We will be glad to provide tailormade clamping devices for your requirements.