Cold-rolled ribbed steel bar welding device

The utility model discloses a cold-rolled ribbed steel bar welding device which comprises a working table, clamping assemblies and a purifying assembly, a welding assembly used for welding is arranged above the center of the working table, the clamping assemblies used for clamping are arranged at the left end and the right end of the top face of the working table, and a protection assembly used for protection is arranged at the front end of the working table. According to the welding device for the cold-rolled ribbed steel bars, the clamping assemblies are arranged at the left end and the right end of the workbench, when the steel bars are positioned, the steel bars penetrate into rotating bases firstly, then screw rods are rotated to drive clamping plates to move under limiting of limiting rods, and therefore the steel bars can be clamped and positioned, the clamping convenience is improved, and the welding efficiency is improved. And meanwhile, through the arrangement of a rubber mat, the friction force dur