Electric heating – Metal heating – For bonding with pressure
Patent
1982-06-21
1984-07-03
Shaw, C. C.
Electric heating
Metal heating
For bonding with pressure
219 90, B23K 1130
Patent
active
044581319
ABSTRACT:
A Robot type resistance welder of very large capacity that enables the electrodes of the welder to be readily adjustable in the welding and retracting strokes and automatically controlled so as to retract when encountering an obstacle - also whereby the degree of retraction of electrodes may be selectively controlled and whereby the vertical elevation of the work plane may be varied during welding in accordance with the contour of the work, such as a curved panel. The respective electrodes of the spot welders have supporting arms which are pivotally interconnected together with an operating air cylinder. An adjustable stop is provided in the air cylinder to adjust the extent of retraction. The entire assembly including the pivotal supporting arms and inter-connected cylinder are provided with an adjustable stop for limiting the pivotal movement of the assembly. Such pivotal movement is cushioned by springs. By preprogramming spot welding, automatic welding in a very short time can be accomplished on a wide variety of panel shaped objects while speedily producing welds of excellent quality.
REFERENCES:
patent: 2487262 (1949-11-01), Mueller
patent: 3665148 (1972-05-01), Yasenchak et al.
Ruano William J.
Shaw C. C.
The Taylor-Winfield Corporation
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