Welding apparatus

US4420676A · kind A · utility

Assignee

• Friedrich Eichhorn · DE

Inventors

• Peter Hirsch · Aachen, DE
• Bernhard Wubbels · Borken, DE
• Iwar Thomson · Aachen, DE

Key dates

• Filing date: Apr 28, 1981
• Grant date: Dec 13, 1983
• Expiry date: Apr 28, 2001

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K9/038
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

An apparatus for safeguarding a welding pool in mechanized welding in a constrained position, for example a vertical position, comprises sliding blocks pressed against the surfaces of the work pieces to be welded and supplying the welding current and the welding electrode and moving at the welding rate. The sliding blocks comprise two segments which are closely adjacent in the perpendicular center plane of the welding gap between the work pieces and are mutually movable. The sliding block segments are pressed in a yielding manner against the surface of each work piece and are individually and independently movable.