Repair welding device for roller shaft

The utility model discloses a repair welding device for a roller shaft, which relates to the technical field of welding, and comprises a bottom plate and a first fixing table, one side of the top end of the bottom plate is fixedly connected with a second fixing table, the top end of the first fixing table and the top end of the second fixing table are both provided with bearing components, and the middle part of the first fixing table is rotatably connected with a first screw rod; the middle of the first screw rod is in threaded connection with the middle of the second fixing table, two first rotating discs are fixedly connected to one end of the first screw rod, a first rotating handle is fixedly connected to one side of the top of one first rotating disc, and an anti-skid pad is fixedly arranged on the surface of the first rotating handle; the roller shaft repair welding device has the advantages that the roller body can rotate on the rotating surfaces of the two first rotating cylinders and the two second