A weld gun for performing a welding operation on a workpiece includes a pair
of
opposing arms, at least one arm movable relative to the opposing arm to apply pressure
to the workpiece during a welding operation. A pair of identical or mirror image
side plates support components of the weld gun to establish critical dimensions
of the components relative to one another, while preventing tolerance buildup of
critical dimensions at critical points. A guide block is connected to one of the
opposing arms. The guide block has a non-circular aperture formed therein. An electrode
adapter has a non-cylindrical rod portion slidably received in the non-circular
aperture formed in the guide block for preventing rotation of the electrode adapter.
A hose fitting is attachable directly to a rear end of the electrode adapter for
communicating with an inlet water port and an outlet water port formed in the electrode
adapter for providing a routing of coolant directly through the electrode adapter only.
