Arc welding system with vision

Details Arc welding system with vision Arc welding system with vision

1983-01-18

1985-02-05

Shaw, Clifford C.

Electric heating

Metal heating

By arc

318577, 901 42, 901 47, B23K 912

Patent

active

044979967

ABSTRACT:
An arc welding system with image acquisition utilizing a non-planar beam of electro-magnetic radiation, such as, a hollow conical beam of light, to illuminate at least a portion of the welding object is disclosed. The conical beam of light is generated by impinging a light beam on the surface of a concave, cylindrical reflector having a longitudinal axis that preferably is parallel to the longitudinal axis of the welding torch. The light beam enters the concave cylindrical reflector through the hollow shaft of a motor. Rotation of the motor angularly positions the reflected light beam on the welding object. The illuminated portion of the object is imaged on an array of photosensitive elements to produce corresponding signals that are representative of the image on the array. These signals are used to obtain identification information concerning the welding object and guidance information for a plural axis manipulator that guides the welding torch tool along a welding seam. The image acquisition apparatus is optically and physically shielded from the welding arc by a replaceable shield.

REFERENCES:
patent: 3757125 (1973-09-01), Okada et al.
patent: 3976382 (1976-08-01), Westby
patent: 4380696 (1983-04-01), Masaki
patent: 4417127 (1983-11-01), Nachev et al.

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