A RESISTANCE SPOT WELD ZONE OXIDATION PREVENTION DVICE

摘要

PURPOSE: A resistance spot weld zone oxidation prevention device is provided to prevent a welding unit oxidation of the object by sealing a welding unit and removing oxygen. CONSTITUTION: A resistance spot weld zone oxidation prevention device comprises a fixing member(210), a chamber(220) and an elastic body(230). The fixing member is attached and detached in an electrode tip holder(110). The fixing member is integrally connected in the up down operation of the electrode tip holder. The electrode tip holder fixes an upper electrode tip(111) of the resistance spot welding device. The chamber is combined in the lower part of the fixing member. The chamber forms a gas-injection nozzle. The gas-injection nozzle supplies the gas for promoting the change of the chemicals as a medium. The elastic body supports the vertical operation of the fixing member using elastic force.