Bending machine for tubing, bar and the like

US6854311B2 · kind B2 · utility

Assignee

• Trumpf Rohrtechnik GmbH + Co. KG · DE

Inventors

• Frank Schmauder · Metzingen, DE
• Winfried Richter · Neckartenzlingen, DE
• Jurgen Wolf · Kriftel, DE
• Stephan Lausterer · Pfullingen, DE
• Erwin Holder · Bad Urach, DE
• Stefan Deuter · Reutlingen, DE
• Rainer Hofmann · Goldkronach, DE

Key dates

• Filing date: Apr 1, 2003
• Grant date: Feb 15, 2005
• Expiry date: May 12, 2023

Classification

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

Abstract

A bending machine for the bending of tube, rod and bar shaped workpieces (24, 24a) includes a machine base unit (2), a collet (6) for mounting a workpiece, and a tool assembly (15) with at least one bending tool. The bending tool can be opened and closed in the transverse direction of the workpiece by the relative movement of tool components to form a workpiece holder. The tool assembly (15) is mounted on a swivel support (10) to rotate around a tool axis of rotation (16) extending axially of the workpiece, and the swivel support (10) is mounted on the machine base unit (2) to be rotatable around a swivel support axis of rotation (11) extending in the axial direction (12) of the workpiece. The swivel support axis of rotation (11) and the tool axis of rotation (16), and the tool axis of rotation (16) and the workpiece holder, are radially offset relative to one another.