Hydraulic lock for resistance welders

Details Hydraulic lock for resistance welders Hydraulic lock for resistance welders

1988-01-11

1989-03-14

Shaw, Clifford C.

Electric heating

Metal heating

For bonding with pressure

91 41, B23K 1130

Patent

active

048126128

ABSTRACT:
A hydraulic system for use in a resistance welding machine with a stationary electrode and a variable electrode to provide adjustment of the stationary electrode to ensure proper positioning to maintain weld quality. The hydraulic system comprising an actuated piston attached to the stationary electrode, a motive piston to control the flow of hydraulic fluid in the hydraulic system, a hydraulic locking device to lock the stationary electrode in a stationary position to resist forces during the welding operation and a pneumatic control system to operate the hydraulic system.

REFERENCES:
patent: 3603205 (1971-09-01), Shearer
patent: 3985194 (1976-10-01), Knutson
patent: 4126082 (1978-11-01), Klitz
patent: 4175793 (1979-11-01), Clemmons
patent: 4185539 (1980-01-01), Stratienko
patent: 4196798 (1980-04-01), Barsted
patent: 4312497 (1982-01-01), Whaley

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