ELECTRODE HOLDER FOR RESISTANCE SPOT WELDING Russian patent published in 2017 - IPC B23K11/06 B23K11/31 

FIELD: metallurgy.

SUBSTANCE: tube for the cooling medium supply is installed in the dead-end longitudinal cavity of the electrode holder rod. In the bolt head to fasten the roller electrode, there is the longitudinal cavity opened into the atmosphere, passing into the bolt cavity, filled with the porous material. The bolt is threaded from the shank end in its dead-end cavity, the part of which at the bottom is filled with the porous material. The dead-end longitudinal cavity of the rod is connected by the transverse window to the mentioned shank cavity, filled with the porous material. According to another embodiment of the electrode holder, the bolt is made with the longitudinal grooves, formed on its side surface, and the bolt head has opened into the atmosphere dead-end longitudinal cavity, connected by the transverse windows to the mentioned longitudinal grooves of the bolt. The dead-end longitudinal cavity of the rod is connected by the transverse window to the mentioned shank cavity, filled with the porous material.

EFFECT: reduction of the electrode heating and increasing of its resistance, the zero-clearance connection of the electrode to the shank improves its thermal and electrical conductivity.

3 cl, 2 dwg