Welding device for end socket and bottle opening of fire extinguisher and using method

The invention relates to the field of fire extinguisher welding. The invention discloses a welding device for an end socket and a bottle opening of a fire extinguisher and a using method, and aims to solve the problems that in the prior art, when the fire extinguisher and the end socket are welded, the fire extinguisher and the end socket need to be spliced after being moved, and welding is carried out after the fire extinguisher and the end socket correspond to each other; and the operation needs to be performed by an operator and related positioning equipment in a butt joint manner, and the butt joint operation is relatively complicated, so that the welding treatment efficiency is relatively low. By means of the clamping equipment, the welding efficiency between the fire extinguisher tank and the end socket can be effectively improved, the fire extinguisher tank and the end socket are independently and relatively moved to the welding device through the bearing table and the supporting table, the fire exting