Abstract: Method for producing parcels consisting of sheet metal pieces, wherein the sheet metal pieces are arranged next to each other and assembled with each other into a parcel. Basically, bent sheet metal piece segments of a circumferential length that corresponds to an angle &agr;=360°/n are created through a stamping process, with n corresponding to a positive integer and being larger or equal to two, with n of these sheet metal piece segments being arranged in one plane to a sheet metal piece. The sheet metal pieces that have been arranged next to each other are connected with at least one fastener and/or welded together.

Abstract: A system for punching metal sheets and for stacking metal sheets in the appropriate punched pattern, particularly for electric machines, has a die for punching the metal sheets, a die plate cooperating with the die, and a guiding device for guiding the punched metal sheets below the die plate. The guiding device has at least two clamping elements. The clamping elements are provided for clamping the punched metal sheets on their circumference and thus forming a stack branch-off which permits an uninterrupted punching during the discharge of the metal sheet stack.

Abstract: A multistation press has several slides which can be moved up and down and which are equipped with tools for forming workpieces. The press a transport arrangement for transporting the workpieces within and/or between the stations. At least one cross traverse for holding the workpieces, in its resting condition, is aligned at least approximately perpendicularly with respect to the transport direction of the workpieces. The cross traverse is held at its two ends in each case a lever arrangement and can be oriented in the space. A length compensating device is arranged on at least one of the two ends of the cross traverse to change the overall length of the cross traverse between its two ends. The length compensating device has an exterior tube element, which is mounted at one end of the cross traverse on the one lever arrangement, and an interior element which is displaceably arranged inside the exterior tube element and which is mounted at the other end of the cross traverse on the other lever arrangement.

Abstract: A process for operating a workpiece transport system for a press arrangement includes driving, the system by at least one driving device which can be held in a stoppage position with a braking device. By application of a predefined torque by the driving device, the functioning of the braking device is checked.

Abstract: Aa process for operating a press arrangement involves a press slide and at least one workpiece transport device that are electromechanically driven and electrically supplied by a supply and feedback device having at least one input and at least one output. In the event of a voltage drop at the input of the supply and feedback device, the current intensity at the input of the supply and feedback device is increased.

Abstract: A guiding and stacking system, is provided particularly for guiding and stacking sheet metal parts which are supplied by a press system. The system has a distributing guide which branches the parts flow to two or more guiding and stacking belts. In their entirety or in parts, the guiding and stacking belts operate in the start/stop operation and thus permit the transfer to mechanical gripper devices or manual removal of the sheet metal parts.

Abstract: An electric driving arrangement, particularly for press systems and/or their components, has a main electric motor for driving a flywheel. By way of a releasable coupling device, the flywheel drives an output shaft. An auxiliary electric motor can additionally be utilized for driving the drive shaft. The main electric motor and the auxiliary electric motor are arranged within the flywheel.

Abstract: A transport system, particularly for forming machines for cold forming or warm forming, has a holding rail with gripper devices which are each separately controlled by way of servomotors. The transmissions provided for the force transmission between the servomotor and the clamping jaws of the gripper device can be self-locking, but transmit independently thereof the rotating movement of the respective servomotor continuously to the clamping jaws which therefore swivel. For a better control or automatic control of the gripper devices, these transmissions can be provided with sensors for detecting the force and/or the position.

Abstract: A press has a press plunger with an adjustable pressure piece. By way of an adjusting device, this pressure piece is supported on the remaining press plunger. A motor-operated tensioning device is additionally assigned to the motor-operated adjusting device. The adjusting device as well as the tensioning device are operated by force, that is, can be operated by corresponding drives. These are connected with a control device which coordinates the work of the adjusting device and of the tensioning device.

Abstract: An adjusting plate (20) for a transfer press (1) has several individually adjustable tool mounting sites (bearing devices). An individually adjustable adjusting device (25) is assigned to each mounting site (15a, 16a, 17a, 18a). Sensor devices (36) provide an acknowledgment concerning the set adjusting position. The adjusting devices (25) are also connected with individual blocking devices (51). The adjustment and blocking take place by way of corresponding hydraulic drives (35, 52) or can take place manually.

Abstract: A press has a tool which comprises an upper tool part and a lower tool part. The upper tool part is held on the press slide, while the lower tool part is stationarily mounted in the press frame. A movable forming element, such as a shearing blade, is provided in the lower tool part. The press drive is used for driving the shearing blade. For this purpose, a hydraulic force transmitting device is provided in the lower tool part and is actuated by way of a pressure pin. For the actuation, the slide or an element fixedly connected with the slide is used, the slide, in turn, being driven by the press drive. A hydraulic force transmitting device in the lower tool part permits a liberal tool construction and an arrangement of corresponding force transmitting devices for the at least temporary coupling between the slide and the hydraulic force transmitting device at points which hinder neither the access to the tool nor the workpiece transfer.

Abstract: Device for forming has at least one tool upper part, at least one upper matrix and at least one lower matrix. The device also has at least one tool lower part, at least one first clamping device and at least one second clamping device.

Abstract: A forming machine has a thermostatic system which preferably utilizes a latent heat cooling medium as a coolant. The thermostatic system acts particularly upon parts of the forming machine that are critical with respect to the working quality or precision. These are, for example, the tool and/or the basic frame. Other parts, such as the drive, can be included.

Abstract: A system for punching and bundling metal sheets, particularly for electric machines, has a die for punching the metal sheets. A die plate cooperates with the die, and a shaft receives and stacks the punched metal sheets. A device separates the punched metal sheets stacked in the receiving shaft. The separating device has at least two wedge elements which penetrate at a predetermined height of the stack of punched metal sheets, into the metal sheet stack at least approximately perpendicularly to the longitudinal axis of the receiving shaft.

Abstract: An orienting station provided particularly for press systems has a receiving device which is carried by a rod-type transmission. This rod-type transmission is supported on drive units of a driving device. The drive units are disposed in a stationary manner. The rods of the rod-type transmission are rigid and their lengths cannot be changed.

Abstract: A transfer system, particularly for a press facility, has a guiding device on which workpiece holding devices are longitudinally displaceably disposed which belong to two different groups. The longitudinal displacement takes place by way of a driving device which is carried at least partially by the guiding device.

Abstract: A device for embossing the edge of round blanks, in particular coins, has a forming wheel which is provided with roll-forming segments. The forming wheel has associated abutment elements which may likewise be mounted on forming wheels. A positioning device guides the round blanks, in coordination with the equally directed synchronous rotation of the forming wheels between the forming wheels and, after edge embossing has taken place out of the wheel interspaces.

Abstract: A transfer system has at least one transfer device which is driven by several mutually independent drives in the direction of at least a closing/opening axis. In the event of a failure of a drive, an immediate stoppage of parts of the transfer device is prevented by coupling the drives with one another by a coupling device. This coupling device has an operating range of a low torque transmission which is normally taken up and is left only if one of the drives no longer supplies a sufficient driving power.

Abstract: A transfer system is provided for press facilities with several successive press stations. The transfer system has divided cross traverses which, with respect to the transport direction, can be moved from the front and the rear into the tool. Each tool includes two respectively transversely divided traverses. For receiving and depositing the workpieces, the cross traverses are adjusted toward and away from one another. In addition, when the tool is closed, the cross traverse are laterally moved past the tool. As required, they may be changed for this purpose into an overtaking position, which can be carried out, for example, by a swivel drive. The transfer system permits a shortening of the minimum time for which the tools must be open with respect to the transfer system and thus allows an increase of the stroke number of the press.

Abstract: A drawing apparatus in a press or similar forming system has a blank holder which can be acted upon by one or optionally several pressure cylinders. Blocking devices are provided which act, in one case, directly upon a pressure cheek supporting the blank holder and, in another case, indirectly upon the pressure cheek by way of an articulated train or transmission train. Thereby, an unintentional lifting or lowering of the blank holder is prevented when the press is inoperative.