A vertical Pittsburgh Seam closing apparatus having a base supporting surface, a track mechanism for moving a carriage assembly which holds seam forming members used to close a Pittsburgh Seam, a pair of upper and lower guide members for guiding the duct section into a proper vertical position, and upper and lower clamping members positioned inside the duct section and adjacent the inside portion of the Pittsburgh Seam to be closed, the upper guide members and clamping member being selectively movable and adjustable for accommodating different duct section lengths. In one embodiment, the seam forming assembly includes three roller members mounted in vertical arrangement to each other, one roller member being V-shaped in configuration and the other two roller members being substantially cylindrical in shape. The V-shaped roller member may also include one or more projecting members for forming dimples in the closing process to prevent shifting and/or slipping of the closed seam.

A vertical Pittsburgh Seam closing apparatus having a base supporting surface, a track mechanism for moving a carriage assembly which holds seam forming members used to close a Pittsburgh Seam, a pair of upper and lower guide members for guiding the duct section into a proper vertical position, and upper and lower clamping members positioned inside the duct section and adjacent the inside portion of the Pittsburgh Seam to be closed, the upper guide members and clamping member being selectively movable and adjustable for accommodating different duct section lengths. In one embodiment, the seam forming assembly includes three roller members mounted in vertical arrangement to each other, one roller member being V-shaped in configuration and the other two roller members being substantially cylindrical in shape. The V-shaped roller member may also include one or more projecting members for forming dimples in the closing process to prevent shifting and/or slipping of the closed seam.

A method of manufacturing a rotating bearing unit includes to cause one end surface in the axial direction of the forming punch (46), formed by combining a plurality of punch elements (46, 46) divided in the circumferential direction, which are displaceable in the axial direction and which are not displaceable in the circumferential direction, and having a processing teeth (44, 44) at one end surface in the axial direction, to face the other end surface of the caulking section (20) in the axial direction. In this state, rolls (30a) are rotated about the central axis () of the hub main body (8) while pressing the other end surface of the forming punch (46) in the axial direction with a pressing surface (43) of the roll (30a) having a central axis () that is inclined with respect to the central axis () of the hub main body (8).

A method of manufacturing a rotating bearing unit includes to cause one end surface in the axial direction of the forming punch (46), formed by combining a plurality of punch elements (46, 46) divided in the circumferential direction, which are displaceable in the axial direction and which are not displaceable in the circumferential direction, and having a processing teeth (44, 44) at one end surface in the axial direction, to face the other end surface of the caulking section (20) in the axial direction. In this state, rolls (30a) are rotated about the central axis () of the hub main body (8) while pressing the other end surface of the forming punch (46) in the axial direction with a pressing surface (43) of the roll (30a) having a central axis () that is inclined with respect to the central axis () of the hub main body (8).

A roller hemming apparatus for robot-supported roller hemming with a manipulator, as well as with a roller hemming apparatus, is described. The apparatus includes a frame, a first roller and a second roller which, when in operation, contact two opposite sides of a workpiece, and at least one first actuator mechanically coupled to the frame and to at least one of the first and the second rollers and controlled so that opposing process forces that are applied over the first and the second rollers and that lie approximately along one effective line of force are applied to the workpiece at opposite sides.

The disclosure relates to a device for seam closing single or double standing seams. The device includes a guiding element and a seaming element. The seaming element includes at least two seam forming wheels on one side and at least two seam forming wheels on an opposite side. The seam forming wheels are rotatably mounted and the guiding element is slidably connected to the seaming element by positioning rods, with at least one of the positioning rods serving as a bearing pin in at least one region. The guiding element and the seaming element are twistable with respect to each other. A method for the manufacture of single or double standing seams is provided. In addition, the disclosure relates to the use of a device according to the invention for cutting open or removing existing standing seams.

Described herein is a new method and device for operating a hemming head of the type comprising a hemming roller (101) and a second, opposed, roller (102), which are rotatable about respective axes contained in one and the same plane. The method includes variation of the position of the second roller that is opposed to the hemming roller as a function of a signal indicating the force exerted by said second roller on the metal sheet and/or as a function of a signal indicating the position of the head along the machining path.

workpiece bending method and a workpiece bending apparatus that allow setting of a trajectory of a bending implement based upon a pre-processed shape of a workpiece and an intended post-processed shape of the workpiece. The workpiece bending method bends a flange of a workpiece via a processing roller, and includes a step for obtaining a pre-processed angle of the flange before processing and a flange length of the portion of the flange to be bent; a trajectory determination step for determining a path (trajectory) of the processing roller based upon the pre-processed angle, an intended angle after processing, and the flange length; and a processing step for moving the processing roller in a prescribed direction in accordance with the path determined in the trajectory determination step and then bending the flange until the intended angle is achieved.

In one embodiment, the method includes providing a double sheet metal element including the two sheet metal end sections; and creating a connecting section along the connecting line. The creation of the connecting section includes introducing a first depression into the double sheet metal element, and creating a first folded section of the double sheet metal element. The method further includes orienting the connecting section relative to an extension plane of the double sheet metal element so that the connecting section extends perpendicularly to the extension plane.

A modular production system and method includes an endless transport path defining a loop. A plurality of work cells in which processes are performed on a workplace are disposed in a sequence along the transport path. The work cells include an inner spot welding cell, an inner remote laser welding cell, and an outer roller flanging and laser welding cell. A transporter follows the transport path and selectively transfers the workplace between the work cells along the transport path. The transporter selects at least some of the work cells and makes a stop at the selected work cells, and the transporter bypasses any unselected work cells.