Electric heating – Metal heating – For bonding with pressure
Patent
1974-11-06
1976-07-20
Grimley, Arthur T.
Electric heating
Metal heating
For bonding with pressure
B23K 1104
Patent
active
039708152
ABSTRACT:
An improved welding tool for end welding studs to workpieces is set forth. The tool includes simplified and inexpensive means for removably connecting a chuck to a chuck leg of the tool. The tool further includes a welding foot for holding a floating spark shield which can move toward and away from the tool body to assure that the shield will be in contact with the workpiece during welding. The tool has threaded spacing means for accurately positioning the welding foot at selected distances from the tool body to control the plunge stroke of the stud during a welding cycle. The rear of a chuck leg of the tool has a coil plunge spring thereon and a seating shoulder engaging an end of the spring to plunge the chuck leg and the chuck toward the workpiece when the spring is under compression. An adjustable seating sleeve is located around the rear portion of the chuck leg, but separate therefrom, and engages the other end of the spring. Means are provided for moving the seating sleeve toward and away from the seating shoulder of the chuck leg to change the degree of compression of the spring.
REFERENCES:
patent: 2568222 (1951-09-01), Crecca et al.
patent: 3052793 (1962-09-01), Dash
patent: 3758744 (1973-09-01), Spisak
patent: 3809849 (1974-05-01), Spisak
patent: 3826893 (1974-07-01), Glorioso
Krischer Lawrence A.
Wieland, Jr. Howard N.
Grimley Arthur T.
Gutchess, Jr. Allen D.
Tone David A.
TRW Inc.
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