The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 14, 2004
Filed:
Sep. 20, 2002
Michael Brunner, Seiersberg, AT;
Josef Artelsmair, Wartberg/Krems, AT;
Fronius International GmbH, Pettenbach, AT;
Abstract
The invention describes a method of positioning a welding torch ( ) and a welding wire ( ) at the center of a seam ( ). The welding torch ( ) is positioned by means of a robot arm on a predetermined or programmed position between two seam edges ( ), after which an alignment process is run whereby the robot arm moves the welding torch ( ) in one direction until a short circuit occurs between the welding torch ( ) or the welding wire ( ) and a seam edge ( ) of the workpiece ( ), and the welding torch ( ) is then displaced in the opposite direction by the robot arm until another short circuit occurs between the welding torch ( ) or the welding wire ( ) and another side seam edge ( ) of the workpiece ( ). A control system ( ) then evaluates the displacement path in order to calculate a seam center, on which the welding torch ( ) is positioned. No additional hardware components are needed in order to implement the method.