Well casing flange welding tool

The utility model discloses a well casing flange welding tool which is characterized in that the well casing flange welding tool comprises a base, a fixed installation plate and a movable installation plate, the fixed installation plate and the movable installation plate are arranged on the base, and the installation face of the fixed installation plate and the installation face of the movable installation plate are both perpendicular to the base. Flange mounting holes used for positioning and mounting flanges are formed in the mounting surfaces of the fixed mounting plate and the movable mounting plate, the fixed mounting plate and the movable mounting plate are located on the same straight line, and the movable mounting plate can be movably adjusted in the straight line direction. The well pipe flange welding tool is simple in structure, the flanges are positioned at the two ends of the pipe body, welding precision is guaranteed, use is convenient, flange welding efficiency is improved, flange hole alignmen