Abstract: A positioning device positions a tool holder (12, 14, 16, 18) on a tool turret (6) of a machine tool by positioning pins (10). The positioning pins are secured to the tool turret (6) and engage with receptacles (40) on the tool holder (6) when the tool holder (12, 14, 16, 18) is attached to the tool turret (6). At least one of the receptacles of the tool holder (6) is formed by a sleeve (40), with which the assignable positioning pin (10) engages in the mounted state while contacting the inner circumferential surface (58) of the sleeve (40). The inner circumferential surface (58) is part of an expanding part (56), which, when the pin (10) engages, expands elastically and flexibly away from the pin (10).

Abstract: A tool turret, in particular intended for use in a machine tool, is for an automated tool change process. In a work station (7) of the pivotable tool disk (5), a holder (9) intended for receiving a machining tool (15) can be attached to the tool disk (5) in a re-detachable manner by a clamping device (31) assigned to the work station (7). In an adjusting position of the tool disk (5) that differs from the working position (11), the respective clamping device (31) can be activated or deactivated, while leaving the holder (9) on the tool disk (5). In a changing position of the tool disk different from the working (11) and adjusting positions (57), the clamping device (31) unlocks the holder (9) in such a way that the holder can be removed from the tool disk (5) and replaced with another holder (9) to be used.

Abstract: A positioning device for positioning a tool holder (12, 14, 16, 18) on a tool turret (6) of a machine tool by means of positioning pins (10), which are secured to the tool turret (6) and which engage with receptacles (40) on the tool holder (6) when the tool holder (12, 14, 16, 18) is attached to the tool turret (6), is characterized in that at least one of the receptacles of the tool holder (6) is formed by a sleeve (40), with which the assignable positioning pin (10) engages in the mounted state while contacting the inner circumferential surface (58) of the sleeve (40), and in that the inner circumferential surface (58) is part of an expanding part (56), which, when the pin (10) engages, expands elastically and flexibly away from the pin (10).

Abstract: A coupling device is for the reversible establishment of a drive connection between a driving unit (13) of a tool turret and a driven unit (46) of a tool receptacle (36) attached to the tool turret and in which a machining tool is able to be received. In a coupling position, a drive shaft (14) of the driving unit (13) is engaged by way of its external toothing (32) with an internal toothing of a driven shaft (44) of the driven unit (46). For a collision-free orientation of the external toothing (32) with respect to the internal toothing, before coupling, an aligning device is used. The orienting device passes through parts of the driven shaft (44) and has a control on one side for the cooperation with the drive shaft (13) and an aligner that is actuable by the control on the other side. The aligner is securable to the tool receptacle.

Abstract: A tool turret, in particular intended for the use in a machine tool and for an automated tool change process, wherein in at least one work station (7) of the pivotable tool disk (5) a holder (9) intended for receiving a machining tool (15) can be attached to the tool disk (5) in a re-detachable manner by means of a clamping device (31) assigned to the individual workstation (7), wherein, in a setting position of the tool disk (5) that differs from the working position (11), the respective clamping device (31) can be activated or deactivated while leaving the holder (9) on the tool disk (5), and wherein, in a changing position of the tool disk different from the working (11) and adjusting position (57), the relevant clamping device (31) unlocks the holder (9) in such a way that it can be removed from the tool disk (5) and replaced by another holder (9) holder to be used.

Abstract: A monitoring device for determining a position of a displacement piston (1) guided longitudinally movably in a housing (7) and, in the housing (7) and delimits a fluid chamber (3, 5) with a variable volume and connected via a pressure supply connector (9, 11) to a pressure fluid control device (13). A volumetric flow regulating device (45) and a pressure determining device (47) are connected between the pressure fluid control device (13) and the measuring connector (15, 17) of the fluid chamber (5, 3). The pressure determining device (47) outputs a measuring signal when the displacement piston (1) reaches an end position.

Abstract: A tool turret has a housing (1), a turret head (2) rotatable relative to the housing (1) by a drive. Two toothed rims (4, 9?) are arranged coaxial to the rotational axis of the turret head (2). One rim (4) is connected fixedly to the turret head (2). The other rim (9?) is connected fixedly to the housing (1). A locking part (24) can be moved axially relative to the housing (1) and to the turret head (2), with the toothing system (24?) oriented towards the two toothed rims (4, 9?). In the locked position, the locking part is in engagement with the rims as a positively locking connection. A pressure fluid control actuates the movement of the locking part (24). An additional frictionally locking connection (73) is established between the housing (1) and the turret head (2) by a frictionally locking device (67).

Abstract: The invention relates to a coupling device for the reversible establishment of a drive connection between a driving unit (13) of a tool turret and a driven unit (46) of a tool receptacle (36) which is attached to the tool turret and in which a machining tool is able to be received, said coupling device being characterized in that, in a coupling position, a drive shaft (14) of the driving unit (13) is engaged by way of its external toothing (32) with an internal toothing of a driven shaft (44) of the driven unit (46), and in that, for a collision-free orientation of the external toothing (32) with respect to the internal toothing, before coupling, an orienting device is used, which passes through parts of the driven shaft (44) and has a control means on one side for the cooperation with the drive shall (13) and an orienting means that is actuable by the control means on the other side, said orienting means being securable to the tool receptacle.

Abstract: A monitoring device for determining at least one position of a displacement piston (1) which is guided longitudinally movably in a housing (7) and, in the housing (7), delimits at least one fluid chamber (3, 5) with a variable volume, which fluid chamber (3, 5) is connected via a pressure supply connector (9, 11) to a pressure fluid control device (13), is characterized in that a volumetric flow regulating device (45) and, following the latter in the direction of the measuring connector (15, 17), a pressure determining device (47) are connected between the pressure fluid control device (13) and the measuring connector (15, 17) of the assignable fluid chamber (5, 3) of the displacement piston (1), which pressure determining device (47) outputs a measuring signal at least when the displacement piston (1) has reached a predefined end position in the housing (7).

Abstract: A tool turret having a housing (1), a turret head (2) which can be rotated relative to the housing (1) by means of a drive, two toothed rims (4, 9?) which are arranged coaxially with respect to the rotational axis of the turret head (2) and of which the one (4) is connected fixedly to the turret head (2) so as to rotate with it and the other (9?) is connected fixedly to the housing (1) so as to rotate with it, a locking part (24) which can be moved axially relative to the housing (1) and to the turret head (2), with the toothing system (24?) which is oriented towards the two toothed rims (4, 9?) and, in its locked position, is in engagement with the latter as a positively locking connection, and a pressure fluid control device for actuating the movement of the locking part (24), is characterized in that, in the locked state, an additional frictionally locking connection (73) is established between the housing (1) and the turret head (2) by means of a frictionally locking device (67), in addition to the positi