Abstract: The invention relates to an indexing chuck comprising a chuck body having an opening; a pivoting ring disposed in the opening, the pivoting ring having at least three clamping jaws that can be advanced radially, perpendicular to the longitudinal axis of the chuck body; an advancing device which is disposed in the pivoting ring and by means of which the clamping jaws can be moved synchronously; and two pivot pins, supported in the chuck body and forming a pivot axis, wherein the advancing device comprises a synchronizing ring which is movable relative to the pivoting ring, a driving surface extending at an angle to the longitudinal axis of the chuck body where it contacts a clamping jaw, and a contact surface on the respective clamping jaw which interacts with the driving surface of the synchronizing ring such that the clamping jaws are moved radially.

Abstract: A clamping unit, in particular for use in a machining center, or a turning or milling center, wherein the clamping unit comprises an external housing (12), preferably having a cylindrical basic design, an internal housing (15) accommodated in the external housing (12), and an internal cylinder (11) that is retained in the internal housing (15) such that it can be displaced in a vertical adjustment direction A when in the operating state, which is designed for transferring a pressure or tensile force for clamping purposes, wherein the internal housing (15) is supported in the external housing (12) by means of springs (13, 14), and is supported with respect to the external housing (12) such that it can be displaced in the adjustment direction A, and thus forms a spring force storage unit (21), and wherein an electric motor (16) is disposed inside the clamping unit, integrated therein, preferably encompassed by the external housing (12), furthermore, preferably accommodated inside the internal housing (15), in o

Abstract: In an electrical plug-and-socket device for transferring electrical energy from an external source of current to an electrical load arranged in a body, preferably in a chuck body of a chuck, in particular an electrical drive motor for actuating the clamping jaws of the chuck, consisting of: —a socket possessing at least two accommodation openings, a body and an electrical load arranged therein, each of which is connected to the source of current via an electrical cable and of at least two plugs connected to the load by one electrical cable each, with the plugs arranged in the body and coupled to the particular accommodation openings of the socket during the electrical energy transfer, and in which the plugs can be removed from the accommodation openings following the energy transfer, and automatic plug-and-socket connection should be created.

Abstract: In an electrical plug-and-socket device (1) for transferring electrical energy from an external source of current (8) to an electrical load (7) arranged in a body (6), preferably in a chuck body (6) of a chuck (9), in particular an electrical drive motor (7) for actuating the clamping jaws of the chuck (9), consisting of: a socket (2) possessing at least two accommodation openings (31), a body (6) and an electrical load (7) arranged therein, each of which is connected to the source of current (8) via an electrical cable (5) and of at least two plugs (4) connected to the load (7) by one electrical cable (5) each, with the plugs (4) arranged in the body (6) and coupled to the particular accommodation openings (3) of the socket (2) during the electrical energy transfer, and in which the plugs (4) can be removed from the accommodation openings (3) following the energy transfer, and automatic plug-and-socket connection (1) should be created.

Abstract: A chuck assembly for supporting cylindrically shaped workpieces to be machined at their ends, the assembly comprising a body having a passage in its lengthways axis, a driving for providing an actuation force absorbed by an actuating pin axially movable in the body, a guide hole in the body having the actuating pin therein, and centring jaws, mounted in a guide groove in the chuck body and moveable radially toward the workpiece, each in a driving arrangement an actuating pin. A roller provided on the driving means facing the actuating pin, a contact surface is on a free end of the pin at right angles to the lengthways axis of the chuck body. The contact surface and the roller interacting such that forces of driving means transfer onto the contact surface axially, and simultaneously a movement at right angles to the lengthways axis of the chuck body is released between the contact surface of the actuating pin and the roller.

Abstract: The invention relates to an indexing chuck (1), comprising a chuck body (2), in which an accommodating opening (3) is incorporated; comprising a pivoting ring (5) inserted in the accommodating opening (3) of the chuck body (2), on which pivoting ring at least three clamping jaws (6) that can be advanced radially perpendicularly to the longitudinal axis (4) of the chuck body (2) are supported; comprising an advancing device (8), which is inserted into the pivoting ring (5) and by means of which the clamping jaws (6) can be moved synchronously; comprising two pivot pins (11, 12), which are supported in the chuck body (2) and which form a pivot axis (13), wherein the advancing device (8) of the at least three clamping jaws (6) is formed by a synchronizing ring (33), which is supported so as to be movable parallel to the longitudinal axis (4) of the chuck body (2) in the pivoting ring (5), a driving surface (36) extending at an angle to the longitudinal axis (4) of the chuck body (2) is fastened to the synchroniz

Abstract: A clamping unit, in particular for use in a machining center, or a turning or milling center, wherein the clamping unit comprises an external housing (12), preferably having a cylindrical basic design, an internal housing (15) accommodated in the external housing (12), and an internal cylinder (11) that is retained in the internal housing (15) such that it can be displaced in a vertical adjustment direction A when in the operating state, which is designed for transferring a pressure or tensile force for clamping purposes, wherein the internal housing (15) is supported in the external housing (12) by means of springs (13, 14), and is supported with respect to the external housing (12) such that it can be displaced in the adjustment direction A, and thus forms a spring force storage unit (21), and wherein an electric motor (16) is disposed inside the clamping unit, integrated therein, preferably encompassed by the external housing (12), furthermore, preferably accommodated inside the internal housing (15), in o

Abstract: A chuck assembly for supporting cylindrically shaped workpieces to be machined at their ends, the assembly comprising a body having a passage in its lengthways axis, a driving for providing an actuation force absorbed by an actuating pin axially movable in the body, a guide hole in the body having the actuating pin therein, and centring jaws, mounted in a guide groove in the chuck body and moveable radially toward the workpiece, each in a driving arrangement an actuating pin. A roller provided on the driving means facing the actuating pin, a contact surface is on a free end of the pin at right angles to the lengthways axis of the chuck body. The contact surface and the roller interacting such that forces of driving means transfer onto the contact surface axially, and simultaneously a movement at right angles to the lengthways axis of the chuck body is released between the contact surface of the actuating pin and the roller.