Method and apparatus for the production of a bent part

US8573019B2 · kind B2 · utility

Assignee

• WAFIOS Aktiengesellschaft · DE

Inventors

• Werner Steinhilber · Lingen (Ems), DE
• Stefan Fries · Landshut, DE
• Anton Schoenle · Bad Saulgau, DE
• Matthias Groeninger · Neckartenzlingen, DE

Key dates

• Filing date: Oct 8, 2010
• Grant date: Nov 5, 2013
• Expiry date: Jan 14, 2032

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B21D7/12
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A method produces a bent part by two- or three-dimensional bending of an elongate workpiece, in particular a wire or tube, in a bending process wherein at least one portion of the workpiece is moved into an initial position in the region of engagement of a bending tool by one or more feed operations by the coordinated activation of the movements of driven machine axes of a bending machine numerically controlled by a control device and is formed by bending in at least one bending operation with the aid of a bending tool. The movements of the driven machine axes are generated according to a movement profile predeterminable by the control device of the bending machine and include at least one oscillation-relevant movement leading to an oscillation of the free end portion of the bent part. During an oscillation-relevant movement, a compensating movement, reducing the generation of oscillation and/or damping the oscillation, a machine axis is generated in at least one compensation time interval.