Determining the relative positions of the axes of a laser machining beam and a process gas jet

US7528344B2 · kind B2 · utility

Assignee

• TRUMPF Werkzeugmaschinen GmbH + Co. KG · DE

Inventors

• Armin Horn · Ditzingen, DE
• Gerhard Hammann · Ditzingen, DE

Key dates

• Filing date: Mar 5, 2007
• Grant date: May 5, 2009
• Expiry date: Nov 30, 2027

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K26/1476
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

Determination of the relative positioning of a laser machining beam and a process gas jet on a laser machine tool are accomplished by motion of detections made while moving the machining beam and gas jet in relation to a detection element. In some cases actions of the beam and gas jet themselves are detected, such as by cutting light response and sensor deflection caused by the gas jet. Relative head positions at the time of the deflections are used to calculate misalignment between the laser beam and gas jet.