Abstract: A spindle arrangement for a machine tool comprising a spindle housing, which can be inserted and fixed in the machine tool, a spindle shaft being accommodated in the spindle housing, and a spindle head projecting from the spindle housing. At least one optical element is located on or near the spindle head, the optical element emits light in the region of the spindle head and/or to optically capture the region near the spindle head. At least one recess is provided on or near the spindle head, the optical element being insertable into the recess. The optical element is provided with at least two contacts arranged on the front face on different radial levels or in different axial regions relative to the screw axis on the end of the optical element which is screwed into the recess.

Abstract: A spindle arrangement for a machine tool comprising a spindle housing, which can be inserted and fixed in the machine tool, a spindle shaft being accommodated in the spindle housing, and a spindle head projecting from the spindle housing. At least one optical element is located on or near the spindle head, the optical element emits light in the region of the spindle head and/or to optically capture the region near the spindle head. At least one recess is provided on or near the spindle head, the optical element being insertable into the recess. The optical element is provided with at least two contacts arranged on the front face on different radial levels or in different axial regions relative to the screw axis on the end of the optical element which is screwed into the recess.

Abstract: The invention relates to a device (10) for machining work pieces, particularly for sharpening tools with cutters for cutting-machining, such as for example drills, milling tools or the like, the device (10) comprising a monolithic machine block (12) with at least two functional surfaces (14, 16) disposed at an angle with respect to each other, a work piece support arrangement (18) for clamping-in a work piece (38) to be machined, a machining unit (20), on which at least one tool (66, 68, 70) can be attached to machine the work piece (38), and a support (22), on which the machining unit (20) can be displaceably attached, wherein on a first functional surface (14) of the two functional surfaces (14, 16) of the machine block (12) the machine block (12) has at least one first linear guide (24, 26) for guiding a work piece support arrangement (18) along at least one first guide axis (X1), and on the second functional surface (16) of the two functional surfaces (14, 16) of the machine block (12) the machine block h

Abstract: A motor spindle is provided for a machine tool comprising a spindle housing for stationary mounting on the machine, a spindle assembly, removable from the spindle housing, with a rotor that is supported in an integrated bearing unit so as to be rotatable relative to the spindle housing, and a clamping mechanism for a tool, the clamping mechanism being actuatable via a clamping piston that is movable in an annular cylinder in the spindle housing, wherein the spindle assembly is designed with internal cooling that is suppliable with a cooling fluid via a coolant supply, wherein the coolant supply has a rotary feedthrough with an interface between a stationary component and a rotating component of the coolant supply, and wherein the bearing unit is also removable when the spindle assembly is removed from the spindle housing.

Abstract: The present invention relates to a tool carrier 62 for a machine tool, in particular a lathe, having a rotary shaft drive for a numerically controllable rotary shaft B for rotating the tool carrier 62, a first tool turret head 62A carrying tools, rotatably mounted around a first turret axis, and a second tool turret head 62B carrying tools, rotatably mounted around a second turret axis, the first tool turret head 62A and the second tool turret head 62B being positioned on opposite sides of the tool carrier 62 with respect to the axis of rotation of the rotary shaft B. The present invention also relates to a machine tool, in particular a lathe, having a tool carrier 62 of this type.

Abstract: The present invention relates to a machine tool, in particular a lathe, having a machine frame 1, a first work spindle 21, arranged on a face of a first carrier portion 1a of the machine frame 1, for receiving a first workpiece W1, a second work spindle 22, facing the first work spindle 21 and arranged on a face of second carrier portion 1b of the machine frame 1, for receiving a second work piece W2, the spindle axis of the second work spindle 22 being aligned parallel to, in particular coaxial with, the spindle axis of the first work spindle 21, and two displaceable tool carrier slides 51 and 52 on each of which a tool-carrying tool carrier 61 or 62 is arranged. According to the invention, a third tool carrier 63 is provided which is displaceable between the work spindles 21 and 22 transverse to the spindle axes and which is arranged on a tool carrier face WTS3 of a central carrier portion 1c positioned between the first and the second carrier portion 1a, 1b.

Abstract: A disclosed example tool changer for changing a tool on a spindle of a machine tool comprises a tool drum having a plurality of tool holders to hold tools. The example tool changer also includes an axle carrier on which the tool drum is rotatably supported to align the tool holders with the spindle. A first coupling portion is rotatably supported on the axle carrier. At least one first gear stage is provided via which the first coupling portion is connected to the tool drum. The first coupling portion is adapted to be coupled or uncoupled with a second coupling portion rotatably supported on a spindle stock of the machine tool and connected to the spindle of the machine tool via at least one second gear stage. The tool drum is adapted to be driven, when the first and second coupling portions are in a coupled state, by the spindle of the machine tool via the at least one second gear stage, the second and first coupling portions and the at least one first gear stage to align the tool holders.

Abstract: The present invention relates to a machine tool, in particular to a lathe, comprising a machine frame 1, a first work spindle 21 which is arranged on a spindle carrier face of the machine frame 1 and is to receive a first workpiece W1, a second work spindle 22 which faces the first work spindle 21, is arranged on a spindle carrier face of the machine frame 1 and is to receive a second workpiece W2, the axis of the second work spindle 22 being aligned parallel, in particular coaxially to the axis of the first work spindle 21, and comprising two movable tool carrier slides 51 and 52, on which a respective tool-carrying tool carrier 61 and 62 is arranged. According to the invention, provided between the work spindles 21 and 22 is a tool carrier 62 which can be moved transversely to the spindle axes, is configured as a tool turret and the turret axis of which is aligned transversely to the spindle axes.

Abstract: The present invention relates to a machine tool, in particular a lathe, comprising a machine frame 1 having a first carrier side TS1 and a second carrier side TS2, wherein the machine frame 1 includes a first carrier portion 1a, a second carrier portion 1b and a middle carrier portion 1c which is arranged between the first and second carrier portions, a first spindle carrier 31 which is arranged on the first carrier side TS1 of the first carrier portion 1a and which holds a first work spindle 21, a first spindle carrier slide 42 which is arranged on the first or second carrier side of the second carrier portion 1b and on which a second spindle carrier 32 is arranged which holds a second work spindle 22 facing the first work spindle 21, wherein the spindle axes are aligned in parallel, in particular coaxially, and wherein the second spindle carrier 32 can be moved in direction W parallel to the spindle axes, and a second tool carrier slide 52 which is arranged on the first carrier side TS1 of the middle portio

Abstract: The invention relates to a device (10) for machining work pieces, particularly for sharpening tools with cutters for cutting-machining, such as for example drills, milling tools or the like, the device (10) comprising a monolithic machine block (12) with at least two functional surfaces (14, 16) disposed at an angle with respect to each other, a work piece support arrangement (18) for clamping-in a work piece (38) to be machined, a machining unit (20), on which at least one tool (66, 68, 70) can be attached to machine the work piece (38), and a support (22), on which the machining unit (20) can be displaceably attached, wherein on a first functional surface (14) of the two functional surfaces (14, 16) of the machine block (12) the machine block (12) has at least one first linear guide (24, 26) for guiding a work piece support arrangement (18) along at least one first guide axis (X1), and on the second functional surface (16) of the two functional surfaces (14, 16) of the machine block (12) the machine block h

Abstract: The present invention relates to a tool carrier 62 for a machine tool, in particular a lathe, having a rotary shaft drive for a numerically controllable rotary shaft B for rotating the tool carrier 62, a first tool turret head 62A carrying tools, rotatably mounted around a first turret axis, and a second tool turret head 62B carrying tools, rotatably mounted around a second turret axis, the first tool turret head 62A and the second tool turret head 62B being positioned on opposite sides of the tool carrier 62 with respect to the axis of rotation of the rotary shaft B. The present invention also relates to a machine tool, in particular a lathe, having a tool carrier 62 of this type.

Abstract: The present invention relates to a machine tool, in particular a lathe, comprising a machine frame 1 having a first carrier side TS1 and a second carrier side TS2, wherein the machine frame 1 includes a first carrier portion 1a, a second carrier portion 1b and a middle carrier portion 1c which is arranged between the first and second carrier portions, a first spindle carrier 31 which is arranged on the first carrier side TS1 of the first carrier portion 1a and which holds a first work spindle 21, a first spindle carrier slide 42 which is arranged on the first or second carrier side of the second carrier portion 1b and on which a second spindle carrier 32 is arranged which holds a second work spindle 22 facing the first work spindle 21, wherein the spindle axes are aligned in parallel, in particular coaxially, and wherein the second spindle carrier 32 can be moved in direction W parallel to the spindle axes, and a second tool carrier slide 52 which is arranged on the first carrier side TS1 of the middle portio

Abstract: The present invention relates to a machine tool, in particular to a lathe, comprising a machine frame 1, a first work spindle 21 which is arranged on a spindle carrier face of the machine frame 1 and is to receive a first workpiece W1, a second work spindle 22 which faces the first work spindle 21, is arranged on a spindle carrier face of the machine frame 1 and is to receive a second workpiece W2, the axis of the second work spindle 22 being aligned parallel, in particular coaxially to the axis of the first work spindle 21, and comprising two movable tool carrier slides 51 and 52, on which a respective tool-carrying tool carrier 61 and 62 is arranged. According to the invention, provided between the work spindles 21 and 22 is a tool carrier 62 which can be moved transversely to the spindle axes, is configured as a tool turret and the turret axis of which is aligned transversely to the spindle axes.

Abstract: The present invention relates to a machine tool, in particular a lathe, having a machine frame 1, a first work spindle 21, arranged on a face of a first carrier portion 1a of the machine frame 1, for receiving a first workpiece W1, a second work spindle 22, facing the first work spindle 21 and arranged on a face of second carrier portion 1b of the machine frame 1, for receiving a second work piece W2, the spindle axis of the second work spindle 22 being aligned parallel to, in particular coaxial with, the spindle axis of the first work spindle 21, and two displaceable tool carrier slides 51 and 52 on each of which a tool-carrying tool carrier 61 or 62 is arranged. According to the invention, a third tool carrier 63 is provided which is displaceable between the work spindles 21 and 22 transverse to the spindle axes and which is arranged on a tool carrier face WTS3 of a central carrier portion 1c positioned between the first and the second carrier portion 1a, 1b.

Abstract: A disclosed example tool changer for changing a tool on a spindle of a machine tool comprises a tool drum having a plurality of tool holders to hold tools. The example tool changer also includes an axle carrier on which the tool drum is rotatably supported to align the tool holders with the spindle. A first coupling portion is rotatably supported on the axle carrier. At least one first gear stage is provided via which the first coupling portion is connected to the tool drum. The first coupling portion is adapted to be coupled or uncoupled with a second coupling portion rotatably supported on a spindle stock of the machine tool and connected to the spindle of the machine tool via at least one second gear stage. The tool drum is adapted to be driven, when the first and second coupling portions are in a coupled state, by the spindle of the machine tool via the at least one second gear stage, the second and first coupling portions and the at least one first gear stage to align the tool holders.