Abstract: A process system and produces metal sheets, including electric sheets, and uses at least one sheet machining unit, particularly a notching device. One or more linear transfer devices or more one sheet stacking devices, one or more sheet feeding unit and one or more sheet removal devices are being configured for stacking at least one sheet metal blank, centering and/or orienting at least one sheet metal blank, (c) at least one of notching at least one sheet metal blanks, separate and/or remove one or more interior sheet metal parts, and deposit the one or more notched sheet metal blanks and/or depositing the one or more interior sheet metal parts.

Abstract: A press for transforming work pieces including a drive apparatus for driving at least one press tappet and at least one tappet element. The drive apparatus is connected with at least one extractor element through a lever linkage. A tool with a tool lower element and a tool upper element which is mounted on the press tappet. At least one extractor element is provided to extract the work piece following the transformation process. A coupling which connects the drive apparatus with at least one extractor element or disengages it therefrom. At least one measuring sensor which is part of a triggering apparatus arranged inside the lever linkage and which is in a position to measure the force acting on the extractor element continuously.

Abstract: An apparatus loads and unloads workpieces. The apparatus includes at least one essentially horizontally movable element, at least one essentially vertically movable element and at least one element for receiving workpieces. The horizontally movable element has at least one drive unit and has at least two belts communicating with the one or more drive units and the one or more elements for receiving the workpieces.

Abstract: A press has a feeding device for feeding material to be machined. The feeding device has at least two motor-driven feeding rollers between which the material to be fed is guided through. The motor drive of the feeding rollers is housed in the feeding rollers. At least one of the feeding rollers can be lifted off the material to be fed and can be placed back onto the material to be fed. The feeding device is arranged on the press such that the feeding device has a degree of freedom in the vertical direction relative to the press.

Abstract: A press for blanking metal plates, particularly stator segments of a generator or electric motor, has a blanking tool and a stacking device for stacking the blanked-out parts. The stacking device is arranged outside the blanking tool.

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: A hydraulic drawing system for a press is provided for controlling a blank holder. The blank holder can be moved by at least one hydraulic cylinder-piston unit which has at least one pressure chamber. By way of a connection line, the pressure chamber is connected directly with a control block provided for controlling the movements of the at least one cylinder-piston unit. At least one storage element for storing pressure for the at least one cylinder-piston unit is connected by way of a connection line with the control block and, by way of another connection line at least one valve device is connected with the control block. The connection lines extend in each case at least approximately completely within the respective components.

Abstract: A multistation press, particularly a suction device press, for machining sheet metal parts is provided for the successive machining of workpieces in several stages. Several press stations are arranged behind one another so that workpieces pass through the stations successively. At least one transfer device transports the workpiece. A common driving device for all press stations has a drive shaft divided into shaft sections. At least one press station is assigned to each shaft section. Slides are driven by the drive shaft and are assigned to one press station, respectively. An adjustable coupling is provided between two successively arranged shaft sections for adjusting a specific phase shift between two successive press stations.

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: A transfer system, particularly for the transfer of workpieces in multi-station presses (1), consists of several transfer modules (14 to 19), which each have a workpiece holding device (28) which is carried by at least one lever mechanism (23). Each lever mechanism transmits the adjusting movement of two mutually independent drives (39, 44) to the workpiece holding device (28). One of the drives (39, 44) is disposed in a stationary manner, and the other is moved by the drive disposed in a stationary manner. This basic principle opens up many design possibilities.

Abstract: A positioning system (31, 32, 33, 34 35, 36), particularly for transporting and positioning workpieces, has a drive and force generating transmission device (47) by means of which a carrier device (41) can be moved and positioned. At least one force generating device (70) is connected to the drive and force transmission device (47), which force generating device (70) feeds into the drive and transmission system of the drive and force transmission device (47), an additional force used for compensating the weight of the drive and force transmission device and its moved parts and possibly of a workpiece, to the extent that this force manifests itself at the drives of the drive and force transmission device (47).