Abstract: A tool turret has a locking mechanism part which can be thrust axially relative to the turret head and a control member which is motor powered. The control member is arranged concentric to the rotary axis of the drive shaft of the turret head. The drive shaft is joined inflexibly with the turret head for driving the turret head and is coupled by a flexible clutch or joining device with the control member. A carrier or drive device couples the locking mechanism part with the turret head for concurrent rotation.

Abstract: A tool turret has a housing and a revolving tool head which can be locked relative to the housing by means of gear teeth including annular toothed rings with axially extending teeth which can be interlocked in different rotational positions. A device having a cam drive controls the selective looking and unlocking of the gear teeth, the cam drive being arranged coaxial to the shaft. A Geneva wheel is provided to drive the head unlocked by the gear teeth. The cam drive has an annular groove in which rides a cam follower which is mounted on a axially movable, annular locking element which carries one set of teeth. The set of teeth can be removed axially to concurrently engage rings of teeth on the head and the fixed housing, locking the head.