A wedge drive (1) has a slide upper part (4), a slide lower part (2), and a slide (3) arranged between the slide upper part (4) and the slide lower part (2). The slide (3) is movable between a closed and an open position in a working position. The slide (3) has a variable-position device (10), a first stop (30) and second stop (40), to obtain either the working position or an installation position. In the working position, the device (10) is positioned so that it is used as the limiter for the first stop (30) when the wedge drive (1) is actuated or is in its intended fully open position. In the installation position, the device (10) is positioned so that the second stop (40) supports itself on the device (10).

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.

This structural member (W1) is manufactured using a structural member manufacturing device including: a first clamping part (10) having a first lower clamping member (11) and a second upper clamping member (12) disposed to face each other and capable of being opened and closed; a second clamping part (20) having a third lower clamping member (21) and a fourth upper clamping member (22) disposed to face each other corresponding to the first lower clamping member (11) and the second upper clamping member (12) and capable of being opened and closed; and clamping part driving means for allowing the first clamping part (10) and the second clamping part (20) to be relatively separated from each other while causing a position in an X-axis direction and a position in a Z-axis direction to correspond to each other. That is, the structural member (W1) is manufactured by a structural member manufacturing method in which the first clamping part (10) and the second clamping part (20) are relatively separated from each other by the clamping part driving means.

A press mold for forming a panel, may include an upper die for vertically operating by an upper press, and having a mounting recess recessed upward at a lower surface central portion, a lower die disposed under the upper die, and configured to the vertically operate by a lower press, an upper pad disposed in a center portion of the mounting recess, and formed with an upper forming surface at a lower surface edge portion, a lower steel disposed under the upper pad, mounted on the lower die, and formed with a lower forming surface at an upper surface edge portion of the lower steel corresponding to the upper forming surface, and an upper steel mounted on the upper die at a position exterior to the lower forming surface.

A press mold for forming a panel, may include an upper die for vertically operating by an upper press, and having a mounting recess recessed upward at a lower surface central portion, a lower die disposed under the upper die, and configured to the vertically operate by a lower press, an upper pad disposed in a center portion of the mounting recess, and formed with an upper forming surface at a lower surface edge portion, a lower steel disposed under the upper pad, mounted on the lower die, and formed with a lower forming surface at an upper surface edge portion of the lower steel corresponding to the upper forming surface, and an upper steel mounted on the upper die at a position exterior to the lower forming surface.

The die includes a die base, a die body, and an opening/closing member. In the die base, a storage portion for storing refrigerant is formed. The die body includes a mounting surface, a forming surface, and a plurality of flow channels. The mounting surface is located on the storage portion side of the die base. The forming surface is located on the opposite side of the mounting surface. The flow channels pass through the die body from the mounting surface to the forming surface. The opening/closing member is disposed between the die base and the die body. The opening/closing member includes a plurality of through holes corresponding to the plurality of flow channels. The opening/closing member is configured to be movable with respect to the die base and the die body such that each of the through holes brings the corresponding flow channel and the storage portion into communication.

The die includes a die base, a die body, and an opening/closing member. In the die base, a storage portion for storing refrigerant is formed. The die body includes a mounting surface, a forming surface, and a plurality of flow channels. The mounting surface is located on the storage portion side of the die base. The forming surface is located on the opposite side of the mounting surface. The flow channels pass through the die body from the mounting surface to the forming surface. The opening/closing member is disposed between the die base and the die body. The opening/closing member includes a plurality of through holes corresponding to the plurality of flow channels. The opening/closing member is configured to be movable with respect to the die base and the die body such that each of the through holes brings the corresponding flow channel and the storage portion into communication.

There is provided a punching device for punching a workpiece into a predetermined shape using a die and a punch, the device including: load sensors which measure a load in a punching direction at at least three predetermined points different from each other; and a control device that calculates a first moment, which is a sum of moments of the measured load around a first axis, and a second moment, which is a sum of moments of the measured load around a second axis, with respect to the first and second axes on a plane perpendicular to the punching direction, and determines that foreign matter is generated in a case where a magnitude of at least one of the first and second moments is deviated from a range of predetermined values.

A press forming tool is configured to form a press forming part including: a top portion; a side wall portion having a recessed portion in which a bottom edge is recessed toward the top portion; and a flange portion formed outward on a bottom edge of the side wall portion, the recessed portion including a first curved portion continuous with the bottom edge being a portion having a large wall depth, an inclined side portion continuous with the first curved portion, a second curved portion continuous with the inclined side portion, and a recessed side portion having a small wall depth, arranged in order from the bottom edge being a portion having a large wall depth, the flange portion being formed such that the flange portion formed in the first curved portion becomes a shrink flange while the flange portion formed in the second curved portion becomes a stretch flange.