Electric heating – Metal heating – For bonding with pressure
Patent
1995-10-11
1998-01-13
Evans, Geoffrey S.
Electric heating
Metal heating
For bonding with pressure
219 869, 901 42, B23K 1111, B23K 1136
Patent
active
057082480
ABSTRACT:
An apparatus allows a robot arm located in from of a body panel to create a spot weld joint located inboard of and behind an edge of the panel. A bracket fixed to the wrist of the robot arm has an open side wide and deep enough to reach around and behind the panel edge, so that an electrode fixed to the bracket can be aligned with the desired weld location. Then, a power cylinder pulls the bracket inward until the electrode hits the weld point, under tension. The electrode then fires to create the joint, and is retracted and moved. The robot arm and wrist remain entirely in front of the panel, and no access holes in the panel are needed to reach the remote weld point.
REFERENCES:
patent: 4273504 (1981-06-01), Shimatake et al.
patent: 5030814 (1991-07-01), Tange et al.
patent: 5151570 (1992-09-01), Sakurai
patent: 5548096 (1996-08-01), Akasaka et al.
Bruggemann Charles J.
Gatny David Allen
Lendway, IV Joseph Michael
Poss Michael Gerard
Evans Geoffrey S.
General Motors Corporation
Griffin Patrick M.
Pelham J.
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