Welding positioning device for coke tank flashboard supporting beam and using method of welding positioning device

The invention discloses a welding positioning device for a coke tank flashboard supporting beam and a using method thereof.The welding positioning device comprises a workbench, the bottom of the workbench is fixedly connected with a first motor, the interior of the workbench is rotationally connected with a first lead screw, the first lead screw is fixedly connected with the output end of the first motor, and the exterior of the first lead screw is in threaded connection with a lifting plate; a first bevel gear is fixedly connected to the exterior of the first lead screw, and fixing plates are fixedly connected to the positions, located on the two corresponding side edges of the first bevel gear, in the workbench. The welding device has the beneficial effects that the supporting beams can be automatically positioned, manual handheld operation is not needed, the labor intensity of workers is reduced, meanwhile, the welding accuracy is ensured, the situation of dislocation between the supporting beams is effect