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US 5,471,029 AGranted
Water cooled resistance welding assembly
AssigneeTuffaloy Products, Inc.
InventorMichael S. Simmons
Life of this patent
Estimating the term…
Abstract
A water cooled resistance welding assembly includes a tubular housing with an internal coolant system for efficiently removing heat from the inboard surface of a flat faced electrode for resistance welding either studs or nuts.
Claims13
A welding electrode assembly for welding nuts or studs to sheet metal that includes an electrode with a flat outer surface and an inner portion seated in a housing having a cooling system for removing heat from the electrode characterized by:
- said electrode having a flat inboard surface;
- said housing having an annular passage at said inboard surface of said electrode;
- said housing further including longitudinally directed inlet and outlet passages communicating with said annular passage at spaced locations thereon;
- a divider provided along said annular passage between said inlet and outlet passages for directing flow from said inlet passage to said outlet passage in one direction only along said annular passage for maintaining a continuous vortex flow across said flat inboard surface.
1 more element
A welding electrode assembly for welding nuts or studs to sheet metal, said assembly comprising:
- a tubular electrode housing having first and second ends spaced longitudinally from one another, a central longitudinally extending opening and a locator pin slideably supported within said central opening, said housing having an annular cooling channel extending into said first end of said housing and open to said first end, and an integral wall portion having inlet and outlet passages extending longitudinally therethrough and communicating with said annular cooling channel at adjacent spaced locations therealong, said housing having a flow divider provided between said inlet and said outlet passages along said annular cooling channel and extending to said first end of housing to close off said channel to the flow of coolant in one direction from said inlet to said outlet while permitting the flow of coolant along said channel in the opposite direction;
- and
- a ring-shaped electrode having flat inner and outer surfaces and a central bore, said inner surface being seated in sealed relation on said first end of said housing such that said cooling channel is closed at said first end of said inner surface of said electrode to define a sealed passage for the flow of coolant from said inlet to said outlet in said one direction therealong for providing a continuous vortex flow of the coolant across said inner surface of said electrode.
Dependencies are inferred from the claim text.