A machine tool includes a machine bed, a tool clamping portion which is arranged on the machine bed and serves to clamp a workpiece on the machine tool, a swivel arm receiving portion arranged on the machine bed, a first swivel arm pivotally mounted on the swivel arm receiving portion about a first axis of rotation, a second swivel arm pivotally mounted on the first swivel arm about a second axis of rotation, a spindle carrier arm rotatably mounted on the second swivel arm about a third axis of rotation, a milling head rotatably mounted on the spindle carrier arm about a fourth axis of rotation, and a work spindle which is held on the milling head and serves to receive a tool, wherein the third axis of rotation is aligned perpendicularly or transversely to the fourth axis of rotation.

A machine tool has: a main shaft head that supports the main shaft; a main shaft head support part which supports the main shaft head such that the main shaft head can rotate around a first axis that extends perpendicular to the main shaft axis of rotation; a first rotary feed shaft device which is provided in the main shaft head support part, and rotates and feeds the main shaft head around the first axis; a saddle which supports the main shaft head support part such that the main shaft head support part can rotate around a second axis that is perpendicular to the first axis and inclined with respect to the vertical direction; and a second rotary feed shaft device which is provided in the saddle, and rotates and feeds the main shaft head support part around a second axis of rotation.

Provided is a mobile CNC machining machine which is designed to machine a rotor of a turbomachine, wherein the turbomachine is a rotor of a steam turbine, including an x-axis, a y-axis and a z-axis which are arranged perpendicular to one another, a baseplate, a stator which is arranged on the baseplate and is movable relative to the baseplate along the x-axis, and a tool module which is held on the stator and is movable along the y-axis and along the z-axis and is designed to accommodate a machining tool wherein, guided along a circular-arc-shaped convex guide disposed on the stator, the tool module is movable about a c-axis which extends parallel to the x-axis; in that the z-axis intersects the c-axis; and in that the y-axis extends tangentially to a circular path, of which the c-axis is the center point.

The invention relates to an interchangeable milling adapter (20) for a work table (60), which comprises a receptacle (21) for a milling machine (70) and an angular adjustment (22). At the same time, an angular position (WP1, WP2) of the receptacle (21) in relation to the work table can be adjusted using the angular adjustment (22). Furthermore, a work table, a milling unit and their use for adjusting a milling machine are described.

The invention relates to an interchangeable milling adapter (20) for a work table (60), which comprises a receptacle (21) for a milling machine (70) and an angular adjustment (22). At the same time, an angular position (WP1, WP2) of the receptacle (21) in relation to the work table can be adjusted using the angular adjustment (22). Furthermore, a work table, a milling unit and their use for adjusting a milling machine are described.

A device is provided for machining rod-shaped workpieces such as window profiles or door profiles. The workpieces can be moved in a horizontal plane in a Z direction by a transport device. A machining device with tools is provided in a plane arranged substantially vertically to the direction of movement of the workpieces, which machining device is spatially oriented in the vertical plane in relation to the workpiece. The machining device includes an open arc arranged in the vertical plane to the workpiece, the arc being mounted to rotate about the workpiece in the Z axis as an open flat ring.

A device is provided for machining rod-shaped workpieces such as window profiles or door profiles. The workpieces can be moved in a horizontal plane in a Z direction by a transport device. A machining device with tools is provided in a plane arranged substantially vertically to the direction of movement of the workpieces, which machining device is spatially oriented in the vertical plane in relation to the workpiece. The machining device includes an open arc arranged in the vertical plane to the workpiece, the arc being mounted to rotate about the workpiece in the Z axis as an open flat ring.

The invention discloses a double-station gantry combined machining system allowing automatic overturning of workpieces, which comprises a first mobile gantry machining unit, a second mobile gantry machining unit, an overturning platform, a first workpiece fixing table, a second workpiece fixing table and a guide rail, wherein the overturning platform is positioned between the first gantry machining unit and the second gantry machining unit. According to the invention, the system is highly integrated, continuous machining of a gantry machine tool is completed, the working efficiency is improved, and the machining cost of the system is reduced.

The invention discloses a double-station gantry combined machining system allowing automatic overturning of workpieces, which comprises a first mobile gantry machining unit, a second mobile gantry machining unit, an overturning platform, a first workpiece fixing table, a second workpiece fixing table and a guide rail, wherein the overturning platform is positioned between the first gantry machining unit and the second gantry machining unit. According to the invention, the system is highly integrated, continuous machining of a gantry machine tool is completed, the working efficiency is improved, and the machining cost of the system is reduced.

A machining unit for a machine tool and machine tool having such a machining unit comprises a head carrier that is attached to the machine tool, a pivot head held on the head carrier in such a way that the pivot head can be pivoted about a pivot axis, a working spindle, which is arranged on the pivot head and has a spindle axis that is tilted in relation to the pivot axis, a spindle motor, which is arranged in the head carrier and has a drive shaft arranged parallel to the pivot axis, and a drive transmission for transmitting the rotational motion of the drive shaft of the spindle motor to the working spindle, wherein the drive transmission has a transmission stage that can be shifted. The pivot head has a shifting transmission shaft that is oriented coaxially to the pivot axis of the pivot head, wherein the transmission stage that can be shifted has a hollow shaft movably supported on the shifting transmission shaft of the pivot head.