Patent ID: 6931972
Filing Date: 2005-08-23
Classification: B23Q,Y10T

Abstract:
1. A tool turret with a turret head ( 12 ) supported by a housing ( 20 ) and rotatable relative to this housing ( 20 ) by way of at least one axial bearing ( 24 ), which turret head ( 12 ) has on the side facing the interior of the housing a gear rim ( 29 ) concentric by its axis of rotation ( 26 ) with gears extending radially which are in alignment with the teeth of a gear rim ( 30 ) in optional rotary positions of the turret head ( 12 ) of the housing ( 20 ), and with a gear rim ( 34 ) movable by means of a locking element ( 32 ) under fluid pressure in the direction of the axis of rotation ( 26 ) of the turret head ( 12 ), the radial teeth of which gear rim ( 34 ) mesh in the locking position under the force generated by way of the fluid pressure both with the gear rim ( 28 ) of the turret head ( 12 ) and with the gear rim ( 30 ) of the housing ( 20 ), the hydraulic pressure simultaneously applying to the turret head ( 12 ), by way of a connecting element ( 38 ), an axial reaction force which is opposite the axial force exerted by the locking element ( 32 ) on the gear rim ( 28 ) of the turret head ( 12 ), characterized in that the axial bearing ( 24 ) is mounted between turret head ( 12 ) and housing ( 20 ) in the direction of the turret head ( 12 ) upstream from the locking element ( 32 ), in that the hydraulic medium generating the fluid pressure may be introduced between the locking element ( 32 ) and the connecting element ( 38 ), and in that the connecting element ( 38 ) engages the locking element ( 32 ) from below in such a way that the axial bearing ( 24 ) is subjected to a pressure load when the turret head ( 12 ) is in both the locked and the unlocked state.