Laser beam welding apparatus

Details Laser beam welding apparatus Laser beam welding apparatus

1997-12-17

2000-11-28

Heinrich, Samuel M.

Electric heating

Metal heating

By arc

21912181, 21912183, 228 7, 228 8, 228 42, 228 443, B23K 2604, B23K 2610, B23K 2622

Patent

active

061538531

ABSTRACT:
The position of a workpiece delivered into a welding station by a feed mechanism is detected by CCD cameras of position detectors, and a positioning error of the workpiece with respect to a reference position is determined on the basis of the detected position. After training data for welding robots is corrected on the basis of the determined positioning error, scan heads on distal ends of the welding robots are inserted into the workpiece. After the scan heads have been inserted to predetermined positions in the workpiece, only the scan heads are actuated to weld the workpiece at a plurality of locations thereof with a laser beam.

REFERENCES:
patent: 4654505 (1987-03-01), Sciaky et al.
patent: 4972062 (1990-11-01), Aharon
patent: 4973817 (1990-11-01), Kanno et al.
patent: 5064991 (1991-11-01), Alborante
patent: 5115115 (1992-05-01), Alborante
patent: 5153409 (1992-10-01), Rudaitis et al.
patent: 5221823 (1993-06-01), Usui
patent: 5359872 (1994-11-01), Nashiki
patent: 5380978 (1995-01-01), Pryor

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