For automation to succeed in heavy fabrication application, the automation mechanism and welding process must be able to adapt to a randomly variable 'environment', i.e. to changes of joint start position and direction, weld tack positions, joint end point, obstructions etc. Some arc weld intelligence is already available on a variety of proprietary robot system but each of these is limited in scope of application. An ESPRIT project (No. 5369), known as the Hephaestos project is under way to construct an intelligent robot system for heavy welded fabrications with ship repair as a specific application. Ship repair is a 'worst case' scenario because each job is a 1-off which has minimal product design input. The project, outlined in this paper, aims to transfer off-line programming activities to a system of off-line and on-line intelligent systems which will enable a robotic system to flexibly cope with a wide variety of assembly types of variable geometry and dimensions.
An intelligent robot for heavy welded fabrication
Intelligenter Roboter für Schweißaufgaben in der Schwerindustrie
1992
11 Seiten, 6 Bilder
Conference paper
English
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