The invention relates to a support device (15) for a press brake, comprising a base frame (24) and a support plate (17) with a bearing surface (18) which can be positioned between a base position (26) and a maximum position (27). The support plate (17) is arranged on a lever linkage system (25) which is connected to a drive unit (32) and which is designed as a parallel kinematics system. The drive unit (32) comprises a crank (35), which is connected to a positioning drive (33) designed as a rotary drive (34), and a rocker (54), which is connected to the crank in an articulated manner. The rocker (54) is connected to the crank (35) by means of an eight rotary joint (55) and to the lever linkage system (25) by means of a ninth rotary joint (56).

The invention relates to a rear stop unit (7) with a stop and/or gripping and/or measuring element (10) for positioning a sheet (3) to be machined on a bending press. The stop and/or gripping and/or measuring element (10) is arranged on an adjustable bearing arm (13) by means of a pivot joint (12). The bearing arm (13) is connected to a guide rail (20) by means of an additional pivot joint (18) via a guide element (19). The rear stop unit (7) further comprises a support arm (21) which is connected to the bearing arm (13) via a joint (22) and to an additional guide element (24) via a rigid connection, and the support arm is connected to the guide rail (20) via the additional guide element. Furthermore, the joint (22) is designed as a rotational/prismatic joint. The position of the bearing arm (13) can thereby be adjusted by moving the support arm (21) in a linear manner along a guide direction (11) specified by the guide rail (20).

The device comprises a base (12), a mobile support (14), a contact member (16), a lever (34) which comprises a blocking arm (38) pivotally mounted around an axis (36). The device comprises retention means (40, 42) capable of opposing the pivoting of the lever. The device also comprises a reaction member (48A) fixed with respect to the base (12) and capable of cooperating with a reaction zone of the blocking arm (38) by defining a reaction surface inclined with respect to the translation direction X of the support on the base. The pivoting of the lever allowed by the release of the retention means allows the displacement of the contact member.

A device for manufacturing a metal wheel (1) from a pre-form, with stretching rolls (3) engaging on the rim region of the pre-form, by means of which rolls a rim (1.1) is end-formed which, for forming a rim flange (1.7). Freely rotatable rolls (4) are arranged underneath the stretching rolls (3) and cooperate with them. A method for manufacturing a metal wheel (1) from a pre-form, the pre-form of the metal wheel (1) to be manufactured is placed on a clamping mandrel (2) and is caused to rotate, stretching rolls (3) engage an axially outer side of a rotation-symmetrical jacket of the pre-form with the exertion of radial pressure, and move along the jacket wall of the pre-form with compression and stretching of the jacket wall to form a rim (1.1) with a main movement component parallel with the axis of rotation (2.1) of the pre-form.

A sheet metal bending machine comprises main bending tool assembly (2; 6) that extends along a longitudinal direction (A) and is movable so as to bend a workpiece (50), a guide (3) associated and parallel to the main bending tool assembly (2; 6), extending through a working zone (W) of the bending machine (1) and sideways protruding from the latter at least with a first end portion (4), and shuttles (21, 22, 23) slidably mounted on said guide (3) and supporting at least one auxiliary tool (41, 42) to be associated with the main bending tool assembly (2; 6) in order to execute partial bends on the workpiece (50); the shuttles (21, 22, 23) are movable along the longitudinal direction (A) between a first active position (P1), in which the shuttle (21, 22, 23) are inside the working zone (W) and the auxiliary tool (41, 42) is mounted on the main bending tool assembly (2; 6), and a first inactive position (R1), in which the shuttle (21, 22, 23) are outside the working zone (W) and positioned at the first end portion (4) of the guide (3); the shuttle comprise a first set (11) of shuttles (21, 22, 23), each shuttle (21, 22, 23) carrying a respective auxiliary tool (41, 42), said shuttles (21, 22, 23) being mutually connectable to form a first shuttle convoy (13) having a selectable number of shuttles (21, 22, 23); the first shuttle convoy (13) is movable between said first inactive position (R1) and said first active position (P1) in order to mount a defined composition of auxiliary tools (41, 42) on the main bending tool assembly (2; 6).

A forming press having a machine bed on which a first tool is arranged, and having a tool carrier which is accommodated to the machine bed such that it can move relative thereto and further including a second tool and a drive for moving the tool carrier and a machine control for controlling the drive, and having a safety control for disabling the drive, wherein the safety control deactivates a first radiation detector if a first status signal, which results from a comparison between a first current position value with a first deactivation position value matches with a second status signal which results from a comparison between a second current position value with the first deactivation position value.

A back gauge system is provided for actively adjusting position of a piece of sheet material in a sheet metal bending brake to a predetermined distance from a bending edge for performing a bend in accordance with a predetermined bending line. The back gauge system includes a frame connected to the sheet metal bending brake, a linear displacement assembly configured to move a stopper supporting the leading edge of the piece of sheet material, and a controlling system communicably connected to the linear displacement assembly to modify the position of the stopper along a traveling axis. A conversion kit assembly is also provided to retrofit an existing sheet metal bending brake not equipped with the back gauge system. The conversion kit comprises the back gauge system disclosed herein and optionally a cavity guide to support the sheet metal and prevent sagging thereof during operation of the back gauge system.

A pipe body forming apparatus includes: a core restricted in rotation about an axis; an abutment body that interposes a center portion of a workpiece between the core and the abutment body; a first pressure member and a second pressure member that are allowed to be pressed against the core from both sides in a horizontal direction with the workpiece interposed between the core and each of the first pressure member and the second pressure member; and a correcting body allowed to be pressed against the core from an opposite side to the abutment body with both edge portions of the workpiece interposed between the core and the correcting body. By pressing the workpiece from four directions perpendicular to each other with respect to the core, the workpiece is formed into a pipe body having an inner dimension matching an outer dimension of the core.

A press brake machine configured to bend a workpiece. The machine includes an upper beam configured to hold an upper tool assembly that includes an upper rotary tool configured to hold an upper punch and an upper die. The machine also includes a lower beam configured to hold a lower tool assembly that includes a lower rotary tool configured to hold lower punch and a lower die. The upper rotary tool assembly is configured to rotate the upper punch and the upper die and the lower rotary tool assembly is configured to rotate the lower punch and the lower die. The upper rotary tool assembly is configured to position to the upper punch downwards to a first upper rotary tool position when the lower rotary tool assembly positions the lower die upwards to a first lower rotary tool position such that the upper punch.

A gathering operation includes a restraint operation of moving forward a left lower tool retention member so as to restrain a reference lower tool with the left lower tool retention member, an inserting operation of moving forward a right lower tool retention member so as to insert the right lower tool retention member into an insertion hole of a target lower tool, and an execution operation of moving the left and right lower tool retention members along a left-right direction so as to come close with each other. If a failure of the inserting operation is determined, a control device performs a retry operation of moving forward the right lower tool retention member again so as to insert the right lower tool retention member into the insertion hole (141) of the target lower tool after moving backward the left lower tool retention member.