Hydraulic/pneumatic drive for tool clamp comprises piston provided with an axial piston attachment having radial recess for receiving locking element interacting with locking body moving in the axial direction under the load of spring

摘要

Hydraulic or pneumatic drive (10) for a tool clamp comprises a piston (14a, 14b) provided with an axial piston attachment (21) having at least one radial recess for receiving at least one locking element (22) which is positioned in the recess so that it moves radially. The locking element interacts with a locking body (23) moving in the axial direction under the load of a spring (29) and a form-locking connection is produced between the locking element and the locking body. Preferred Features: At least two locking elements are provided. The locking element is partly disk-shaped.