Transport device for a welding wire, particularly for robots

US4757180A · kind A · utility

Assignee

• Kuka Schweibanlagen + Roboter GmbH · DE

Inventors

• Franz Kainz · Augsburg, DE
• Karel Mazac · Augsburg, DE
• Helmut Obermeier · Königsbrunn, DE
• Peter Rippl · Augsburg, DE
• Josef Stadler · Friedberg, DE
• Ernst Zimmer · Friedberg, DE

Key dates

• Filing date: Nov 25, 1986
• Grant date: Jul 12, 1988
• Expiry date: Nov 25, 2006

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K9/1336
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The invention relates to a transport device for welding wire feed for welding equipment, in particular arc sheild-gas welding tools on manipulators. The welding wire is transported from a magazine or reel with the aid of two separate drives. The main drive determines the feed and it is mounted near the application welding die, while the auxiliary is arranged spaced therebehind. The motor of the main drive is controlled to a constant speed corresponding to the selected feed, while the auxiliary drive acts on the welding wire with slip. The motor of the auxiliary drive is also controlled to a constant speed, the speed adjustment of the drives being, however, control-technologically connected for maintenance of a certain difference of the transport speeds.