Abstract: The invention describes a rapid-action coupling cylinder comprising a guiding device for the controlled insertion of a pull-in nipple fixed to the underside of a workpiece pallet into the central receiving aperture in the housing of the rapid-action coupling cylinder. In order to ensure that the pull-in nipple is inserted into the central receiving aperture in the housing without damage, provision is made by the invention for the face end of the pull-in nipple to have, in the direction of insertion, a conical bevel that is beveled towards the rear and cooperates with an associated—oppositely beveled—conical receptacle inside the housing of the rapid-action coupling cylinder.

Abstract: Quick-action clamping cylinder for general locking tasks in mechanical engineering, said quick-action clamping cylinder being used to anchor a feed nipple located on any desired part, the built-in components of the quick-action clamping cylinder that are fundamental to its function being configured as an insert module which are able to be fitted into the into the housing of the quick-action clamping cylinder in a modular manner.

Abstract: A quick-action clamping cylinder is described which has a housing and a cover which covers the housing and has a center opening for receiving a retractable nipple that is arranged on the lower side of a workpiece pallet. The retractable nipple is locked in a spring-loaded manner in the housing by means of a plurality of locking balls that are spring-loaded in the locked position on the outer periphery of the retractable nipple. The locking balls are disengaged from the retractable nipple in the unlocked position by displacing a piston actuated by a pressurized medium. The aim of the invention is to obtain a simple, small clamping system. To this end, the locking balls convert the spring force exerted by the springs into a multiple of the retraction force acting on the retractable nipple, by means of a lever arm transmission.

Abstract: The invention describes a rapid-action coupling cylinder comprising a guiding device for the controlled insertion of a pull-in nipple fixed to the underside of a workpiece pallet into the central receiving aperture in the housing of the rapid-action coupling cylinder. In order to ensure that the pull-in nipple is inserted into the central receiving aperture in the housing without damage, provision is made by the invention for the face end of the pull-in nipple to have, in the direction of insertion, a conical bevel that is beveled towards the rear and cooperates with an associated—oppositely beveled—conical receptacle inside the housing of the rapid-action coupling cylinder.