A press brake for bending a workpiece that includes a movable ram and a support beam. The press brake includes a backgauge that has an arm with a plurality of fingers for grasping the workpiece. The arm is mounted to an arm support that is mounted on a carriage that is mounted on a backgauge support frame. The arm is configured to swing relative to the arm support in a plane perpendicular to the carriage from a position projecting away from one side of the carriage to a position projecting away from the other side of the carriage. The carriage is configured to rotate 180 degrees so that opposite sides of the workpiece may be positioned under the ram to thereby allow for bending operations to be performed on opposite sides of the workpiece without removing the workpiece from the backgauge.

The invention relates to a bending machine (1) for metal sheets (3). The bending machine (1) comprises a machine frame (4) and a support device (15) which is designed to hold the metal sheet (3) to be bent, a support surface (16) of the support device (15) being arranged in a horizontal plane with the support surface (7) of a clamping base (5). The support device (15) has at least a first support module (17) and a second support module (18) having a first support surface (19) and a second support surface (20). At least one of the support modules (17, 18) is horizontally displaceable in the longitudinal direction (21) of the bending machine (1) and as a result a first gap (22) extending at right angles to the blank-holder edge (12) can be set between the two support modules (17, 18). The support modules (17, 18) each have at least a first support element (24) and a second support element (24, 25) with a second gap (26) located between the support elements (24, 25), which second gap (26) is oriented parallel to the blank-holder edge (12).

The invention relates to a bending machine (1) for metal sheets (3). The bending machine (1) comprises a machine frame (4) and a support device (15) which is designed to hold the metal sheet (3) to be bent, a support surface (16) of the support device (15) being arranged in a horizontal plane with the support surface (7) of a clamping base (5). The support device (15) has at least a first support module (17) and a second support module (18) having a first support surface (19) and a second support surface (20). At least one of the support modules (17, 18) is horizontally displaceable in the longitudinal direction (21) of the bending machine (1) and as a result a first gap (22) extending at right angles to the blank-holder edge (12) can be set between the two support modules (17, 18). The support modules (17, 18) each have at least a first support element (24) and a second support element (24, 25) with a second gap (26) located between the support elements (24, 25), which second gap (26) is oriented parallel to the blank-holder edge (12).

An adjustable jig for a sheet metal brake including a first arm configured to mount to the brake, and an adjustable backstop affixed on the first arm. The adjustable backstop is set at an adjustable first distance from a front face of the brake when the first arm is mounted to the brake. A first adjustable front stop can be configured to engage the first arm and retain an adjustable first front stop position relative to the first arm. A second adjustable front stop can be configured to engage the first arm and retain an adjustable second front stop position relative to the first arm. The first and second front stops are independently adjustable relative to the first arm. A sheet metal brake with an adjustable jig. A method for bending sheet metal with a sheet metal brake and an adjustable jig.

A press forming method of press forming a formed part including a top portion having a concave outer edge with a part of the outer edge being concave inwards and a flange portion subjected to bending forming along the concave outer edge of the top portion includes: a first forming step of forming a preformed shape part including, in a part where the flange portion is formed in a blank material, a vertical wall portion that becomes a part of the flange portion and a mountain shaped portion that is bent outwards from the vertical wall portion and is convex towards the top portion; and a second forming step of forming the flange portion by performing bending forming on a part including the mountain shaped portion of the preformed shape part formed at the first forming step along a bending line that is a boundary from the vertical wall portion.

A brake assembly machine for forming a hem in sheet metal has a top bar and a bottom bar opposite the top bar. The top bar and the bottom bar can move towards one another to hold sheet metal therebetween. The brake assembly machine also has an angle foot movable to a proximity of a bending bar that moves about a bending bar axis and includes a bending face. As the bending bar moves about the bending bar axis, the bending face of the bending bar can move closer to the angle foot and before the bending bar bending face contacts the angle foot, the angle foot moves to avoid contact with the bending bar.

A brake assembly machine for forming a hem in sheet metal has a top bar and a bottom bar opposite the top bar. The top bar and the bottom bar can move towards one another to hold sheet metal therebetween. The brake assembly machine also has an angle foot movable to a proximity of a bending bar that moves about a bending bar axis and includes a bending face. As the bending bar moves about the bending bar axis, the bending face of the bending bar can move closer to the angle foot and before the bending bar bending face contacts the angle foot, the angle foot moves to avoid contact with the bending bar.

An apparatus for bending a metal work piece, the apparatus including a press support frame and a bending anvil disposed on the press support frame. A clamp press can be mounted to the press support frame, the clamp press positioned to selectively clamp the work piece over the bending anvil when the work piece is positioned on the bending anvil. A bending press unit can be mounted to the press support frame, the bending press unit including a bending roller oriented to engage the work piece during a bending operation when the work piece is clamped over the bending anvil. The bending press unit is operable to move the bending roller with respect to the press support frame in a first direction and a second direction, the first direction being substantially perpendicular to the second direction. A method of bending a metal work piece with the bending apparatus.

An apparatus for bending a metal work piece, the apparatus including a press support frame and a bending anvil disposed on the press support frame. A clamp press can be mounted to the press support frame, the clamp press positioned to selectively clamp the work piece over the bending anvil when the work piece is positioned on the bending anvil. A bending press unit can be mounted to the press support frame, the bending press unit including a bending roller oriented to engage the work piece during a bending operation when the work piece is clamped over the bending anvil. The bending press unit is operable to move the bending roller with respect to the press support frame in a first direction and a second direction, the first direction being substantially perpendicular to the second direction. A method of bending a metal work piece with the bending apparatus.

A bending machine for bending flat material, including a first clamping beam, a second clamping beam, and a first bending beam. The bending machine includes a counter-holding device for performing a counter-holding function at the flat material. The counter-holding device may include a counter-holding element. The counter-holding element is movable between a parked position, in which it is arranged at a distance from the flat material and in which the counter-holding function cannot be performed, and a counter-holding position, in which it can be in contact with the flat material to be bent and in which the counter-holding function can be performed such that that the counter-holding element is capable of counter-holding against a bending force which is applied to the flat material by means of the first bending beam when the flat material is bent about a bending axis that is spaced apart from the clamping plane.