Releasing unit for use in clamping device for actuating clamping mechanism for releasable mounting of tool and tool holder in work spindle, has pressure piece, which is displaced between clamping position and release position

摘要

The releasing unit (4) has a pressure piece (16), which is displaced between a clamping position and a release position, a motor arranged within the housing of the releasing unit and a gearbox arranged in the housing for converting the rotational movement of a rotor of the motor into linear movement of the pressure piece. The pressure piece is prestressed by a pressure spring in the direction of the release position. The rotor and the stator of the motor are arranged concentrically around a drive spindle. An independent claim is included for a clamping device with a tension rod.