A workpiece transport device capable of improving a workpiece transport speed to increase productivity is provided. The workpiece transport device transports a workpiece pressed by a press machine. The workpiece transport device includes a base portion, a crossbar that holds the workpiece, a parallel mechanism, and a motor. The parallel mechanism is supported on the base portion. The parallel mechanism is configured to change a position of the crossbar relative to the base portion by operating in a plane defined by a transport direction in which the workpiece is transported and an up-down direction. The motor generates a driving force for driving the parallel mechanism. The motor is mounted on the base portion.

A method and a device for producing bipolar plates for fuel cells. A bipolar plate is formed by joining an anode plate to a cathode plate, wherein the anode plate and the cathode plate are formed by forming a substrate plate. In order to provide a cost-effective and automated method, it is proposed that a plate already provided with a reactive coating or catalyst coating, which is transported, automatically driven, via a transport device from the forming device to the joining device, is used as substrate plate.

A simulation device has a simulation unit and a coordinate acquisition unit. The simulation unit simulates the operations of press devices and the operations of feeder devices that transport a workpiece between the press devices. The coordinate acquisition unit acquires a locus of a plurality of predetermined positions in the width direction of the feeder devices from simulation.

A simulation device has a simulation unit and a coordinate acquisition unit. The simulation unit simulates the operations of press devices and the operations of feeder devices that transport a workpiece between the press devices. The coordinate acquisition unit acquires a locus of a plurality of predetermined positions in the width direction of the feeder devices from simulation.

A centering device (1) for centering flat workpieces (700-706) comprises a centering station (100) having at least a first and a second gripping device (300, 301) for gripping the workpiece (700-706), and conveying means for conveying workpieces (700-706) in a conveying direction to the centering station (100). The first and the second gripping device (300, 301) can each be moved horizontally by a first and a second guiding device (200, 201), respectively, and the first and the second gripping device (300, 301) can rotate freely about an axis.

A centering device (1) for centering flat workpieces (700-706) comprises a centering station (100) having at least a first and a second gripping device (300, 301) for gripping the workpiece (700-706), and conveying means for conveying workpieces (700-706) in a conveying direction to the centering station (100). The first and the second gripping device (300, 301) can each be moved horizontally by a first and a second guiding device (200, 201), respectively, and the first and the second gripping device (300, 301) can rotate freely about an axis.

A workpiece conveyance device includes a base body disposed adjacent to a press machine, a pair of first arms, a pair of second arms, and a first holding portion and a second holding portion independent of each other. Each of the first holding portion and the second holding portion includes a plurality of holding members configured to hold a workpiece W. The first holding portion includes a first support member, a second support member, and an absorption member. The second support member movably supports the first support member along an intersection direction. The absorption member allows movement of the second support member caused in the intersection direction relative to the first support member, and makes it possible for the second support member to return to an initial position in the intersection direction relative to the first support member.

A manufacturing method of a plate member, in which a strip material can be positioned with respect to a die all through stamping operations using a pilot hole formed in an initial phase of the stamping operations. The plate member is manufactured by a press machine in which a progressive stamping die having a plurality of stations is placed. The manufacturing method comprises: forming an oval pilot hole 14 in an uncoiled strip 13; and stamping the uncoiled strip 13 by a plurality of operations while bringing a pilot pin 17 into contact with an inner edge of the pilot hole 14 at the operation before the pilot hole 14 is displaced, and at the operation after the pilot hole 14 is displaced.

A hot press line (100) includes: a heating device (30); a first press device (10) having first die parts (1A, 1B); a second press device (20) having second die parts (2A, 2B); a first transportation device (41) that transports a metal sheet (B) to the first press device; and a second transportation device (42) that transports the metal sheet (B) to the second press device. One of the pair of first die parts and the pair of second die parts includes a clearance portion (1Ac) recessed inwardly, whereas the other pair of die parts includes an abutment surface (2At) in at least part of the portion corresponding to the clearance portion (1Ac) of the one pair of die parts, where the abutment surface abuts the metal sheet (B) when the die is at the bottom-dead center.

A hot press line (100) includes: a heating device (30); a first press device (10) having first die parts (1A, 1B); a second press device (20) having second die parts (2A, 2B); a first transportation device (41) that transports a metal sheet (B) to the first press device; and a second transportation device (42) that transports the metal sheet (B) to the second press device. One of the pair of first die parts and the pair of second die parts includes a clearance portion (1Ac) recessed inwardly, whereas the other pair of die parts includes an abutment surface (2At) in at least part of the portion corresponding to the clearance portion (1Ac) of the one pair of die parts, where the abutment surface abuts the metal sheet (B) when the die is at the bottom-dead center.