A device for loading bending tools onto a press includes a first lower guide and a second lower guide oriented according to a first direction; a first upper guide and a second upper guide oriented according to the first direction; and devices for selectively translating the upper and lower guides in directions that are orthogonal to the first direction, wherein the lower and upper guides are configured so that one or more tools or dies can be slidably assembled thereon.

An automatic tool changer includes first and second tool change units that is driven respectively by a pair of servo motors and move along an arrangement direction of a plurality of tools installed on a tool installation unit, a torque detection unit that detects a torque of each of the pair of servo motors, and a control device that controls operations of the first and second tool change units. The control device fixes the first tool change unit at a reference position, and moves the second tool change unit toward the first tool change unit. The control device determines, based on a torque change of each servo motor, that a plurality of upper tools are brought together at the first tool change unit as a result of a movement of the second tool change unit.

A machine tool for processing a workpiece comprises a processing station which has a tool receiving member in which a processing tool for processing the workpiece can be introduced and replaced, a tool store which has at least one storage space for a processing tool, a tool handling device which can be moved by a controlled drive into a tool-transfer position, a movement unit which can move the workpiece and the tool store and which can be moved by a controlled drive into any of a setup position, a processing position, and a tool changing position, a control device for the drive of the tool handling device which can define the tool-transfer position of the tool handling device, and a control device for the drive of the movement unit which can define the setup position, the processing position, and the tool changing position of the movement unit.

An upper tool stocker for detachably supporting a plurality of divided upper tools in a press brake includes a stocker main body extending in a left-right direction, and provided with a left-right directional installing groove, attachment portions provided in upper portions of the divided upper tools being detachably installed in the installing groove, wherein the stocker main body includes a front-back directional cutout communicated with the installing groove to remove the divided upper tools downward or in the front-back direction from the installing groove.

A machine tool for processing plate-like workpieces, in particular metal sheets, has a machine frame with a lower frame arm, an upper frame arm and a frame compartment or throat defined between the upper and lower arms. A first tool magazine, close to the station, has storage places for processing tools is arranged at least partially within the frame compartment. The processing tools, such as punch/die sets, can be interchanged at a processing station of the machine tool. By means of a tool transfer device, processing tools can be transferred between the first tool and a second tool magazine, remote from the station. The second tool magazine has a magazine platform that protrudes laterally in a horizontal direction with respect to the machine frame and is accessible from above, on which magazine platform storage places for processing tools interchangeable at the processing station are provided, and above which a tool holder of the tool transfer device is mounted on the relevant longitudinal side of the machine frame.

A pipe bend die unit includes a bend die that comprises a clamp member and a counter pressure member, wherein the clamp member has a first groove part of half-circular cross section and a fitting recess extending in a peripheral direction by a first predetermined length on a planar surface perpendicular to a rotary axis. A fitting protrusion of the counter pressure member is positioned in the fitting recess to form a pipe-receiving groove of half-circular cross section, so that the counter pressure member and the clamp member are hingedly connected to one another about the rotary axis so as to be rotated relative to each other. The fitting recess possesses width expanding end face areas, where a clearance between opposing end faces is enlarged in a predetermined distance range including at least a radially outer end portion, from the rotary axis toward a radial outside.

The invention relates to a production plant (1) comprising a brake press (3) having press beams (13, 16), slot-shaped tool holders (19, 20) disposed and/or arranged on the press beams (13, 16), bending tools (4), a tool magazine (31) for at least one bending tool (4), a first manipulation device (30) for transporting the bending tool (4) between the tool magazine (31) and the tool holders (19, 20), and a second manipulation device (33) for positioning the bending tool (4) in the tool holder (19, 20). The second manipulation device (33) comprises at least one traction means (37) guided via two deflection means (35, 36), on which traction means (37) at least one pusher element (38) is disposed. The bending tool (5, 6) has a slot (46) extending in a direction (48) parallel with a bending edge (47) through which the at least one traction means (37) is run. The at least one slot (46) is further dimensioned such that the at least one pusher element (38) cannot be run through the slot (46).

The apparatus for bending bars includes a bending unit suitable for receiving on a work surface () at least one bar according to a longitudinal direction (A), and a bending head which can be engaged on the bending unit, at a bending axis (B). The bending head includes a bending mandrel and an eccentric pin rotatable on the work surface () around the bending axis (B), to bend the bar around the mandrel.

The invention relates to a tool changing device (1) for a forming press (2), in particular a press brake, comprising at least one tool magazine (3, 4) and at least one transfer device (5, 6) for the transfer of the forming tools (7, 8) of the at least one tool magazine (3, 4), which are storable in the at least one tool magazine (3, 4), from the at least one tool magazine (3, 4) to the forming press (2) and in the reverse direction, wherein the at least one transfer device (5, 6) has a drivable thrust chain (9, 10) for the transmission of compressive and tensile forces.

A bend die comprises a clamp member having a first groove part of half-circular cross section on its outer peripheral surface with a fitting recess formed on the first groove part and extending in a peripheral direction by a first predetermined length on a planar surface perpendicular to a rotary axis, and a counter pressure member having a second groove part of half-circular cross section formed on its outer peripheral surface, and a fitting protrusion extending in a peripheral direction by a second predetermined length from a tip end portion of the second groove part. The fitting protrusion is positioned in the fitting recess so that a pipe-receiving groove of half-circular cross section is formed. The first and second groove parts are hingedly connected to one another about the rotary axis so as to be rotated relative to each other.