Abstract: A cold rolling machine and method for producing a profile on a workpiece. The cold rolling machine having two constructed tool units. Each tool unit has at least one rolling rod extending in the longitudinal direction, a tool slide, a slide drive device, a pivoting carrier and a pivot drive. The at least one rolling rod is fastened to the tool slide and can be moved in the longitudinal direction by the slide drive device. The pivoting carrier can be pivoted about a pivot axis extending in the longitudinal direction by a pivot drive. The tool slide is arranged on the pivoting carrier. An angle of inclination can thereby be set between the two rolling rods, which angle of inclination can have, for example, a value of 0 degrees to 2.0 degrees or to 0.2 degrees. Conical profiles can thereby be produced in the workpiece.

Abstract: A machine tool is provided. The machine tool can comprise a machine frame, at least one tool holder device which is held for movement on the machine frame, a work space in which workpieces are machinable, a work space cladding, at least one workpiece carriage which is displaceable on a path guiding device relative to the machine frame, the path guiding device being arranged alongside the work space, and at least one sliding door for access to the work space. The sliding door particularly can be arranged on the path guiding device of the at least one workpiece carriage.

Abstract: A process of producing profiled tracks for joint parts is provided, wherein a cutting tool acts on the workpiece, a workpiece machining being performed with the cutting tool during the relative forward movement between workpiece and tool, and a workpiece machining being performed with the same cutting tool during the return movement following the forward movement.

Abstract: In a machine tool comprising at least one tool carrier and at least one moveable workpiece carrier with which one or more workpieces are positionable for machining, a tool can be changed in a simple manner by providing a tool holding device connected to the at least one workpiece carrier.

Abstract: The invention relates to a machine tool for introducing bores into a workpiece, said machine tool comprising a machine frame, a drilling tool holder which is arranged on the machine frame and has at least one tool spindle, and a workpiece carrier which is arranged on the machine frame, the boring tool holder and the workpiece carrier being displaceable in relation to each other in a direction of displacement. A longitudinal direction of the at least one tool spindle is oriented transversally in relation to a horizontal plane, and the drilling tool holder is arranged on the machine frame in such a way that it can be pivoted in relation to the workpiece carrier, so that inclined bores can be introduced into the workpiece.

Abstract: There is disclosed a coldforming machine in which the rolling racks are preferably arranged in vertical direction and are adjustable via a feed means during the rolling operation in radial direction with respect to the workpiece to be formed.

Abstract: In order to improve a machine tool with a working area, in which workpieces can be positioned and can be machined with at least one tool held by a tool holder, such that the disposal of shavings is optimized, at least one cover is provided which limits the working area in the direction of the tool holder, wherein the at least one cover is provided with at least one opening associated with the tool for the passage of the tool.

Abstract: In order to provide a machine tool with at least one movable slide, which has a plurality of holders for tools and/or workpieces, and which can be corrected in a simple manner, the at least one slide has a plurality of separate subslides and the relative position of the subslides in relation to one another is adjustable in a securable manner.

Abstract: A tool changing device for a machine tool with at least one tool carrier is proposed, which comprises at least one transit station, into which a tool is introducable in an inward transit direction and is extractable in an outward transit direction, wherein, at the transit station, the tool is at least one of detachable from the assigned tool carrier and fixable to the tool carrier provided.

Abstract: In order to provide a multiple spindle machine tool having a machine frame, a first spindle slide with a first workpiece spindle, and a second spindle slide with a second workpiece spindle, wherein first spindle slide and second spindle slide are guided on the machine frame for linear displacement, and a tool receiving device, which is of a simple construction with minimized space requirements with respect to the workpiece spindles, a first guide and a spaced second guide are arranged on the machine frame, both the first spindle slide and the second spindle slide being guided on these guides, and the first workpiece spindle and the second workpiece spindle being arranged between the two guides.

Abstract: There is disclosed a coldforming machine in which the rolling racks are preferably arranged in vertical direction and are adjustable via a feed means during the rolling operation in radial direction with respect to the workpiece to be formed.

Abstract: There is disclosed a coldforming machine in which the rolling racks are preferably arranged in vertical direction and are adjustable via a feed means during the rolling operation in radial direction with respect to the workpiece to be formed.

Abstract: The invention discloses a tool-changing concept in which tools are accommodated in a rack and, by means of a storage and retrieval unit located behind the rack, are removed and fed through the rack to a tool changer, by means of which it is possible to remove a tool from a spindle of the machining center and to insert the tool fed by the storage and retrieval unit.

Abstract: A radial-feed rotating drill tool having a tool holding fixture formed at an eccentric portion of a feed spindle eccentrically mounted in an external spindle. By rotating the feed spindle relative to the external spindle, a feed movement may be initiated with minimum expense. Further, because of the surface-contact mounting of the eccentric shaft portion of the feed spindle in the external spindle, mounting of the tool-holder without play is ensured.

Abstract: A radial-feed rotating drill tool having a tool holding fixture formed at an eccentric portion of a feed spindle eccentrically mounted in an external spindle. By rotating the feed spindle relative to the external spindle, a feed movement may be initiated with minimum expense. Further, because of the surface-contact mounting of the eccentric shaft portion of the feed spindle in the external spindle, mounting of the tool-holder without play is ensured.

Abstract: There is disclosed a machine tool for machining bores having a large axial length and a boring tool especially suited for a machine tool of this kind in which a boring bar holding at least one tool lip is supported by a steady adapted to be connected to the boring bar 28 via a coupling 48. By the steady the radial excursion of the boring bar during the machining process is reduced to a minimum.

Abstract: There is disclosed a feed system for a rotating cutting tool which is driven by a spindle and is adjustable in the feeding direction via an adjusting means. The adjusting means is driven by an operating shaft which can be driven synchronously with the spindle or at a predetermined difference in speed with respect to the spindle by a separate feed motor. In the case of a synchronous drive of the operating shaft and the spindle no feed is effected, whereas the cutting tool is adjusted, when a speed difference is adjusted by the adjusting means. After adjusting the desired position of the cutting tool, the operating shaft and the spindle are again driven at the same speed.

Abstract: A machining tool for dry processing includes an encapsulated workspace having arranged therein a workpiece support which is displaceable on a machine bed. The guide members of the workpiece carrier are arranged externally of the workspace, so that chip removal is not impeded by the workpiece support guide members.

Abstract: In order to so improve a machine for the non-circular machining of workpieces comprising a machine frame, a workpiece spindle held on the machine frame for receiving a workpiece and having a C-axis sensor, a Z-slide displaceable parallel to the workpiece spindle and having a Z-axis sensor, an X-axis drive arranged on the Z-slide for advancing a tool towards the workpiece, an X-axis sensor for determining the position of the tool, and a control device, that it operates quickly and reliably, it is proposed that the control device comprise a numerical machine control system for activating the workpiece spindle and the Z-axis drive and include a numerical X-axis control system, that the X-axis control system activate the X-axis drive independently of the machine control system in accordance with the predetermined non-circular shape, and that a coordination take place between the machine control system and the X-axis control system after certain time intervals.

Abstract: In order to improve a device for the non-circular machining of workpieces comprising a machine frame, a workpiece spindle held on the machine frame and operated as C-axis for a workpiece to be machined, a Z-slide displaceable on the machine frame in the Z-direction in relation to the workpiece spindle and having a Z-axis drive, an X-axis drive in the form of a linear motor arranged on the Z-slide for advancing a tool in the X-direction towards the workpiece, and a numerical control system for activating the X-axis drive in correlation with the rotation of the workpiece spindle, such that more precise work results are obtained, it is proposed that the linear motor serving as X-axis drive be a three-phase asynchronous linear motor with a primary part fixedly arranged in the X-direction on the Z-slide and a secondary part movable relative to the primary part.