| 摘要 |
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.
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