DEVICE FOR CONTACT POINT WELDING WITH COOLING ELECTRODE-CAP Russian patent published in 2017 - IPC B23K11/10 B23K11/30 

FIELD: electricity.

SUBSTANCE: in the axial cavity of the holder, a tube for supplying a coolant is placed with a lateral clearance, the rear end of which is connected to a cap on the rear of the holder and fixed in a movable bushing. The electrode-cap has a cavity with conical lateral surface and placed on the front part of the conical surface of the holder with the formation of the gap between its face and the bottom of the electrode-cap cavity. The front part of the holder is made chamfered, and the pipe for supplying a coolant is made with recesses on its front end and installed with an emphasis in the bottom of the electrode-cap cavity. The said movable bushing has a sealing element disposed in an outer lateral groove and is installed in a cavity formed in the region of the front end of the cap. Between the rear end of the bushing and the bottom of the said cap cavity, an elastic element is arranged to deform it when the bushing is moved. A longitudinal window is made from the rear end of the cap, and in the holder, there is a transverse window for the coolant.

EFFECT: holderensures the resistance of the electrode, which increases the reliability of the welding device.

6 cl, 1 dwg