Abstract: Referring to a punch device in accordance with the invention, the punch stamp (10) is driven by a hydraulic actuating drive (6), in which case, in connection with an advance device (4) driven by a servo motor and travel-measuring systems on the ram axis and on the partial-apparatus axis (advance axis), the ram movement is freely programmable relative to the advance movement of the partial apparatus.

Abstract: To increase the cutting quality and to improve the operation of a press, in particular in punching high-strength martensitic materials or when punching thick sheet metal, a sheet metal holding device is provided for securely clamping the respective workpiece during the punching operation. The clamping force is increased to 40% or more of the ram force. The force exerted by the sheet metal holding device during the penetration of the workpiece can be further increased. The increase in the clamping force preferably takes place in a controlled manner as a function of the press angle.

Abstract: A transfer press provided with a transfer device, having transfer units provided with cross members (37) for which the length is shorter than the width of a tool. The transfer units (29 to 32) are arranged completely between the processing stations or stages, are mounted on the crown or head piece, and are not provided with elements extending beside the tools or between supports of adjacent processing or press stations. Thus, the full width spanned by the press supports can be used for the tools. In addition, tools can be used which are provided with guides, effective between the upper tool and the lower tool, particularly in the side region. The work pieces are handled solely by means of the openings, freed by the tools and pointing counter to the transporting device, wherein no element of the transfer device extends past the side limits of the tool.

Abstract: A device for producing cut-out and/or shaped workpieces, especially for producing rotors and stators of a generator or electric motor, with at least one cutting device and/or at least one shaping device, at least one gripping device for picking up and setting down raw material and/or finished workpieces and at least one transfer device, at which at least one gripping device can travel and be driven.

Abstract: To accommodate a press tooling carrier without interference, a control arm straight guide having at least one drive, e.g., having motor angular gears (worm gears), cardan shaft or the like is provided. A control arm straight guide permits a very shallow position of the joints in the completely assembled state. A hydraulic cylinder may be used to support startup of the motor, i.e., to move the control arm straight guide out of its bottom dead center position.

Abstract: In an overload safety device in a press, having a driving device with a drive shaft, a slide carrying out an oscillating movement and a connecting rod which connects the drive shaft with the slide and has a large and a small eye, the connecting rod is provided with a pressure element disposed displaceably in the longitudinal direction of the connecting rod. The pressure element acts at least indirectly upon a fluid such that, when a certain force acts upon the connecting rod, a pressure increase occurs in the fluid. The fluid is guided to a pressure limiting valve which, when a predetermined pressure is exceeded, causes an interruption of the slide movement.

Abstract: A pneumatic force-generating device, for example, a pneumatic cylinder for balancing the ram weight on a press, is provided with an impact or catching device having an impact plate (24) for catching the piston (18) upon discharge of the weight. The deformable impact plate (24) is securely clamped along its edge or held by a clamping device (31), that permits a controlled slipping through. The impacting piston (18) deforms the impact plate (24) to absorb the kinetic energy produced if this piston is released as a result of damage and is accelerated by the existing gas bolster and thrown against the impact plate (24).

Abstract: A reshaping device according to the invention has at least one ejector, for example, in the form of a cylinder pin (11) which is shifted by the workpiece (6) against the pressure from a pressure storing cylinder (17) or other suitable energy storing device before and/or during the reshaping of the workpiece (6). The workpiece ejection occurs by the work stored in the energy storing device.

Abstract: A press has a slide which can be driven by way of one or more one knee link element by a driving device in order to carry out a stroke movement. The knee link element or elements is or are connected by at least one connection element with another knee link element which is also mounted on the slide.

Abstract: A transfer press provided with a transfer device, having transfer units provided with cross members (37) for which the length is shorter than the width of a tool. The transfer units (29 to 32) are arranged completely between the processing stations or stages, are mounted on the crown or head piece, and are not provided with elements extending beside the tools or between supports of adjacent processing or press stations. Thus, the full width spanned by the press supports can be used for the tools. In addition, tools can be used which are provided with guides, effective between the upper tool and the lower tool, particularly in the side region. The work pieces are handled solely by means of the openings, freed by the tools and pointing counter to the transporting device, wherein no element of the transfer device extends past the side limits of the tool.

Abstract: A pneumatic force-generating device, for example, a pneumatic cylinder for balancing the ram weight on a press, is provided with an impact or catching device having an impact plate (24) for catching the piston (18) upon discharge of the weight. The deformable impact plate (24) is securely clamped along its edge or held by a clamping device (31), that permits a controlled slipping through. The impacting piston (18) deforms the impact plate (24) to absorb the kinetic energy produced if this piston is released as a result of damage and is accelerated by the existing gas bolster and thrown against the impact plate (24).

Abstract: In a press production series for massive forming with a toggle drive for driving a ram, varying stroke speeds of the ram motion are attached by adjustment of cogwheels of an planetary gear system having fixed connecting dimensions. Uniform machine frames can thus be used.

Abstract: A system for forming workpieces, has at least one forming tool has at least one machining device with a local energy feed. The local feed is provided for machining the workpieces as a separate station within the forming system.

Abstract: System for stacking blanks produced, particularly in a progressive die process, has one or more stacking mandrels which can be lifted and/or lowered in a stacking channel. The stacking mandrel/mandrels has/have a stacking mandrel top part and a stacking mandrel bottom part. At least one metal sheet holder is arranged in the area of the stacking mandrel top part. The stacking bottom part has a rotatable construction.

Abstract: A system for the transport of workpieces in a forming press, particularly a multistation press, has at least one cross traverse for holding the workpieces, which on at least one of its ends is connected with a lifting and lowering device and can be oriented in a space by the lifting and lowering device. At least one overload protection device is arranged between the cross traverse and the at least one lifting and lowering device for cutting the connection between the cross traverse and the at least one lifting and lowering device.

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 process forms workpieces in a forming system with at least one forming station. The workpieces are transported from or to the at least one forming station. Outside the time period provided for the forming of a certain workpiece, a machining takes place in the forming system with a local energy feed on this workpiece.

Abstract: A press product line of presses for massive forming has toggle lever transmissions for driving a slide. Different slide strokes and path-time characteristic curves of the slide movement are achieved starting with uniform blank components. The critical dimensions, i.e., the bearing locations of the toggle lever transmission on the machine frame, are constant within the entire press product line, so that at least to that extent, uniform machine frames can be used. Specially desired path-time progressions are achieved through appropriate fine machining of the blank components (eccentric, connecting rod and link bars).

Abstract: Arrangement of several presses having in each case at least one flywheel and in each case at least one shaft drive acting upon a shaft. The at least one shaft drive of each press, respectively, and its at least one flywheel, respectively, are mutually synchronized.

Abstract: In an overload safety device in a press, having a driving device with a drive shaft, a slide carrying out an oscillating movement and a connecting rod which connects the drive shaft with the slide and has a large and a small eye, the connecting rod is provided with a pressure element disposed displaceably in the longitudinal direction of the connecting rod. The pressure element acts at least indirectly upon a fluid such that, when a certain force acts upon the connecting rod, a pressure increase occurs in the fluid. The fluid is guided to a pressure limiting valve which, when a predetermined pressure is exceeded, causes an interruption of the slide movement.