Other

Gerhard Stark

Gunther Blum

Klaus Hoffmann

K Eugen Sigloch

A boring, milling, thread cutting or analogous machine has a frame for a work supporting table and a first carriage which is reciprocable in the X-direction. The first carriage supports an open-and-shut magazine for a supply of spare tools as well as a second carriage which is movable in the Y-direction. The second carriage supports a headstock which is movable with a vertical tool spindle in the Z-direction. The magazine is opened in automatic response to movement of the second carriage in the Y direction and to a predetermined position in which the tool spindle can be relieved of the tool thereon by being lifted upwardly. An indexing mechanism of the magazine then places a selected tool into the path of downward movement of the spindle so that, when the spindle descends, the freshly selected tool is automatically coupled thereto. The second carriage is thereupon moved in the direction of the Y-axis to enable the magazine to become shut. A further selected tool is placed in a position adjacent to the locus of transfer onto the tool spindle while the tool which at such time is attached to the tool spindle is used for the treatment of a workpiece on the table. The device which actually opens the magazine in response to movement of the second carriage in the direction of the Y-axis to a predetermined position is a cam which spreads apart portions of elastically deformable guide rails provided in the magazine and defining an elongated path for the indexing of spare tools therealong.

Machining center with magazine for spare tools

A machine assembly comprises a machine tool including a machining table with a base table drivable in the Y-direction and a co-ordinating table movable under an NC-control system on the base table in the X-direction with a base table part secured to the co-ordinating table, and the work feed device including pallets movable from a base frame on to this base table part or the co-ordinating table under the positive direction of the controlled movement of the base table itself relatively to the co-ordinating table, thereby dispensing with a special device for operating a pallet change, wherein at least two pallets along with the base table part, form a machine surface.

Machine assembly comprising a machine tool and means feeding work thereto

A machining center for at least one of a drilling or milling operation. The machining center includes a machine frame at which an outrigger is attached, with a tool spindle, driveable to execute stroke movements and rotary movements, being mounted to the outrigger. The tool spindle is adapted to be moved from an end position, in alignment with a tool carrier present in the tool magazine and connectible to the tool spindle, axially for being coupled to the tool carrier and then further movable axially for machining of workpieces. The tool spindle is rotatably mounted at a slide arranged at the outrigger and guided along a straight guide extending in parallel to an axis of rotation of the tool spindle. The slide serves for axial movement of the tool spindle for executing axial strokes intended for workpiece machining and for an exchange of a tool carrier. The slide has a zone through which the tool spindle extends, which zone may pass through a gap of the tool magazine. Upon each tool carrier change, the gap may be engaged by the respective tool carrier to be coupled to the tool spindle, which tool carrier is carried by a magazine connecting member in order to enable a coupling to the tool spindle. The straight guide for the slide is arranged at a spacing from the zone of the machine frame carrying the outrigger.

Machining center

A mechine tool includes a movable work table assembled of a base part defining first clamping surface and of an exchangeable table part defining a second clamping surface levelled with the first one and being movable in guideways on the base part; a pallet changer having a rotary table provided with guideways aligned with the guideways on the work table unit supports pallets in the form of the exchangeable table part so that a workpiece can be clamped on one pallet while another workpiece on a second pallet is being operated in the machine.

Machine tool

A machine tool has a table, a standard, a head part displaceable on the standard relative to the table, a main spindle arranged in the head part, an electric motor arranged in the head part for driving the main spindle in rotation, a tool changing arrangement arranged in the head part for aligning and coupling a tool with the main spindle, and a rotary element for displacing the head part relative to the table, which rotary element is arranged so that it is rotated by the electric motor and displaces, during the rotation, the head part relative to the table.

The turret machine tool comprises a set of tool spindles which are driven via a built-in transmission gears by a direct current motor having a relatively stable torque in a wide range of rotational speeds such as a multiple direct current motor having permanent magnetic field and further including means for electrically controlling the speed of the motor according to a predetermined numerically controlled program.

Growing community of inventors

Notzingen, Germany

Gerhard Stark