Abstract: A changeover apparatus for changing between workpiece supports for a machining machine. The changeover apparatus has a base frame with a carrier apparatus for the workpiece supports, which are vertically movable by the carrier apparatus, with the result that one of the workpiece supports can be transferred into a working plane in which the workpiece support is moved from the carrier apparatus into the machining machine and guided out therefrom. A lifting apparatus acts between the base frame and the carrier apparatus and by way of which the carrier apparatus can be vertically moved relative to the base frame for one workpiece support to take up a first lifting position or a further lifting position in the working plane. The lifting apparatus contains a slotted guide, which movably actuates the carrier apparatus with the workpiece supports together between the first lifting position and the further lifting position.

Abstract: A profile carrier includes a base profile of metal and a reinforcement member of fiber-reinforced plastic material that reinforces the base profile. The reinforcement member and the base profile are connected to each other by at least one wall-side positive-locking element that is provided on a profile wall of the base profile and that extends in a transverse direction of the profile wall. The at least one wall-side positive-locking element and the reinforcement member engage one inside of the other in the transverse direction of the profile wall with a positive-locking connection between the reinforcement member and the base profile formed substantially parallel to the profile wall.

Abstract: A movement unit for a machine tool comprises a supporting structure movable in a first direction for supporting a functional unit of the machine tool, with two longitudinal guides extending in the first direction which are offset relative to one another in a transverse second direction. A guide unit is mounted on each longitudinal guide to be relatively movable in the first direction and not the second direction. A bearing structure connects the supporting structure to one of the guide units to be not relatively movable in the first direction and movable in the second direction. The bearing structure comprises a bearing receptacle having a receptacle wall extending in the second direction, and a bearing projection which engages the bearing receptacle. The bearing projection and the receptacle wall are supported against one another to prevent their relative motion in the first direction and are movable in the second direction.

Abstract: A movement unit for a machine tool comprises a supporting structure movable in a first direction for supporting a functional unit of the machine tool, with two longitudinal guides extending in the first direction which are offset relative to one another in a transverse second direction. A guide unit is mounted on each longitudinal guide to be relatively movable in the first direction and not the second direction. A bearing structure connects the supporting structure to one of the guide units to be not relatively movable in the first direction and movable in the second direction. The bearing structure comprises a bearing receptacle having a receptacle wall extending in the second direction, and a bearing projection which engages the bearing receptacle. The bearing projection and the receptacle wall are supported against one another to prevent their relative motion in the first direction and are movable in the second direction.

Abstract: A profile carrier includes a base profile of metal and a reinforcement member of fiber-reinforced plastic material that reinforces the base profile. The reinforcement member and the base profile are connected to each other by at least one wall-side positive-locking element that is provided on a profile wall of the base profile and that extends in a transverse direction of the profile wall. The at least one wall-side positive-locking element and the reinforcement member engage one inside of the other in the transverse direction of the profile wall with a positive-locking connection between the reinforcement member and the base profile formed substantially parallel to the profile wall.

Abstract: Devices for laser machining include a machining head for directing laser light towards a workpiece, the laser light being emitted from a laser light source and directed along an optical beam path and the machining head including one or more focusing optics that are arranged in the optical beam path, a collimator including one or more collimating optics that are arranged in the optical beam path in front of the focusing optics and the collimator having an axis that extends parallel to the main direction of the laser light at the collimating optics, one or more deflecting optics arranged in the optical beam path between the collimating optics and the focusing optics, the deflecting optics configured to deflect the laser light emerging from the collimating optics towards the focusing optics, wherein the machining head is adjustable relative to the collimator along a z-axis, and the axis of the collimator extends under an angle to the z-axis.

Abstract: Devices for laser machining include a machining head for directing laser light towards a workpiece, the laser light being emitted from a laser light source and directed along an optical beam path and the machining head including one or more focusing optics that are arranged in the optical beam path, a collimator including one or more collimating optics that are arranged in the optical beam path in front of the focusing optics and the collimator having an axis that extends parallel to the main direction of the laser light at the collimating optics, one or more deflecting optics arranged in the optical beam path between the collimating optics and the focusing optics, the deflecting optics configured to deflect the laser light emerging from the collimating optics towards the focusing optics, wherein the machining head is adjustable relative to the collimator along a z-axis, and the axis of the collimator extends under an angle to the z-axis.