A method of reshaping a workpiece, a primary side pressing device, a secondary side pressing device and an arrangement for reshaping a workpiece
AssigneeStilfold AB
InventorTue Beijer
Life of this patent
Estimating the term…
Abstract
A method (100) of reshaping a workpiece (90), a primary side pressing device (10) for reshaping a workpiece (90), use of a primary side pressing device (10) in an arrangement (1) for reshaping (130) a workpiece (90), a secondary side pressing device (20) for reshaping a workpiece (90) and an arrangement (1) for reshaping (130) a workpiece (90), wherein the (140) the workpiece (90) is deformed across an operational direction (Y′) by means of forces applied to the workpiece (90) by at least one pressing device (10, 20).
Claims21
A method of reshaping a workpiece, the method comprising:
- bringing a primary side pressing device in contact with the workpiece on a primary side of the workpiece;
- bringing a secondary side pressing device in contact with the workpiece on a secondary side of the workpiece;
- moving the workpiece and/or the pressing devices with respect to one another to obtain a mutual linear movement between the workpiece and the pressing devices along an operational direction;
- and
- plastically deforming the workpiece in a plane that extends transversally to the operational direction via forces applied to the workpiece by at least one of the pressing devices,
- wherein moving the workpiece and/or the pressing devices with respect to one another to obtain the mutual linear movement between the workpiece and the pressing devices along the operational direction comprises movement along a predetermined, non-straight line.
2-80. (canceled)
An arrangement for reshaping a workpiece, the workpiece and/or the arrangement being movable with respect to one another to obtain a mutual linear movement between the workpiece and the arrangement along an operational direction, the arrangement comprising:
- a primary side pressing device adapted to be arranged on a primary side of the workpiece, the primary side pressing device comprising a primary contact surface for applying a force to the workpiece;
- and
- a secondary side pressing device adapted to be arranged on a secondary side of the workpiece, the secondary side pressing device comprising two secondary contact surfaces for applying forces to the workpiece,
- wherein, as seen in the operational direction, the primary contact surface is positioned between at least portions of the secondary contact surfaces such that the workpiece may be deformed transversally to the operational direction.
A primary side pressing device for reshaping a workpiece, the primary side pressing device being adapted to be arranged on a primary side of the workpiece when a secondary side pressing device is arranged on a secondary side of the workpiece, the primary side pressing device comprising:
- a primary side roller part that is rotatable around a rotational axis and comprises a proximal axial end, a distal axial end and a primary contact surface, the primary contact surface being adapted for applying a force to the workpiece from the primary side,
- wherein, in use, the workpiece is configured to be bent an angle around a tangent to the primary contact surface, and
- wherein the primary side roller part is configured such that the workpiece after bending extends next to the proximal axial end or the distal axial end and past the rotational axis.
Dependencies are inferred from the claim text.