Special collet chucks for internal clamping power-operated with direct expanding collet
We manufacture special collet chucks for direct expanding collets in different designs with differing chucking ranges. The collet chuck consists of a basic fixture onto which the mandrel is screwed. The expansion sleeve is drawn back for clamping by means of the draw-back rod and the cross-pin. When unclamping, the expanding collet is pushed forward again by the draw-back rod and the cross pin, the expanding collet closes, and the workpiece can be removed.
Depending on the application this type of mandrel can be equipped with a stationary end stop, so that the workpiece for clamping is always clamped in the same axial direction – because during the clamping process a pulldown effect is created that pulls the workpiece onto the fl at surface of the end stop. This type of expanding mandrel is especially suited to the clamping of very short workpieces. Fixation of the collet chuck is carried out according to customers’ wishes. In most cases, the chuck body is designed with a cylindrical flange, but a short-taper fixture is also possible anytime. Naturally an intermediate flange can be attached at any time, too.
Facts and figures:
- for direct expanding collets
- with pull-down effect
- suitable for clamping very short workpieces
- with or without fixed end stop
- various sizes and clamping ranges
- any fixtures
Please don’t hesitate to contact us. We will be glad to provide tailormade clamping devices for your requirements.