Systems for robotic stud arc welding without ferrule
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United States of America Patent
Stats
-
May 14, 2002
Grant Date -
N/A
app pub date -
Dec 28, 1999
filing date -
Dec 28, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Apparatus and methods for arc welding a stud to a workpiece without the use of a ferrule are disclosed. Apparatus according to the invention include a stud arc welding gun having a spacer at a distal end thereof, and a chuck adapted to receive a stud having a diameter of more than about 3/8 inch. A stud feeding device is coupled to the gun for automatically loading studs into the gun. The stud feeding device can include a bowl feeder and a stud feeding conduit via which studs are transferred from the bowl feeder to the stud gun. A gun positioning device, such as an arm of a robot, is coupled to the gun, and automatically positions the gun such that the spacer is against a receiving surface of the workpiece. A controller coupled to the stud gun initiates a stud arc welding process to arc weld the stud to the workpiece.
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