Abstract: The present invention refers to a tool-changing mechanism that can be used especially in combination with a metal-forming press. Especially in the case of big and heavy forming tools, pairs of tools are difficult to exchange. The present invention intends to provide the possibility of exchanging also tools of this type rapidly and easily, the tool exchange being, in addition, carried out automatically, if desired. For this purpose, the tool-changing mechanism (1) includes a circulating means provided with a plurality of reception means (4a, 4b) for holding forming tools (5a, 5b). The tool-changing mechanism is adapted to be set up beside a metal-forming press. At a tool changing position, the tools can be pushed into the metal-forming press. Furthermore, the present invention refers to an arrangement comprising a metal-forming press and a tool-changing mechanism in the case of which said tool-changing mechanism is arranged directly at the side of the metal-forming press (10).

Abstract: There is disclosed a device for measuring dimensions of workpieces, particularly rod shaped workpieces. The device includes a supporting means for supporting and roughly aligning the workpieces, a measuring mean for detecting the length of the workpiece, and a control unit including memory means for storing the measured values. The measuring device of the present invention is characterized in that the measuring means (1, 103) is provided with a sensor means (6, 104) for detecting dimensions of a cross-section of the workpiece (1, 101).

Abstract: The present invention refers to a quick clamping device for at least one tool of a machine tool, in particular for at least one bending or edging punch of a bending or edging press, comprising a clamping member and a safety and hold means for the tool, said clamping member being provided with an engagement strip which is pretensioned for engagement with a counterrecess on the tool shank and which is adapted to be actuated by a central operating member in a direction opposite to its pretension.

Abstract: There is disclosed a device for measuring dimensions of workpieces, particularly rod shaped workpieces. The device includes a supporting means for supporting and roughly aligning the workpieces, a measuring mean for detecting the length of the workpiece, and a control unit including memory means for storing the measured values. The measuring device of the present invention is characterized in that the measuring means (1, 103) is provided with a sensor means (6, 104) for detecting dimensions of a cross-section of the workpiece (1, 101).

Abstract: A storage system for rods including a conveyor device and a crane system. The conveyor device is for feeding a working machine such as a cutting-off machine, and in particular for supplying and discharging rods to and from at least one roller path for feeding the rods into the working machine. The conveyor device includes a receiver device arranged at both sides of the roller path for conveying rods between a handling device of a stock of rods and the roller path, each receiver device having at least one receiver arm which is independently movable substantially vertically. The crane system includes a load crossbeam movable in the vertical direction for transporting a bar material, and load take-up device provided on the load crossbeam. The load crossbeam is subdivided into subcrossbeams which are movable individually.

Abstract: A multi-station machine tool wherein the bed of the frame supports two spaced-apart upright columns and the columns support an indexible shaft for a turret which is disposed between the columns. The turret has several sets of clamping jaws for elongated rod-shaped workpieces which are introduced and removed at a first station or which are introduced at a first station and removed at a second station. The number of stations may greatly exceed two, and each column supports several spindles including at least one rotary and axially movable tool spindle and at least one axially movable and preferably rotary work spindle. Each spindle in one of the carriers is coaxial with a spindle in the other carrier, and the turret indexes the workpieces in such a way that they come to rest between successive or selected pairs of coaxial spindles.

Abstract: A machine tool wherein the carrier for several rotary work spindles is separably mounted on a base in such a way that the chucks of two spindles are spaced apart by equal distances from horizontal ways for two side slides each of which mounts a carriage for an indexible tool turret. If the treatment of a workpiece at one of the working stations takes up more time than the treatment of a workpiece at the other working station, the tools which have completed the treatment of a workpiece at the other station are moved to the one station to cooperate with the other tools in rapidly completing the treatment of the workpiece at the one station. The carrier may be a box-like structure with two spindles or a drum having more than two work spindles and being indexible in a headstock, which is separably secured to the base.