Supporting device for welding robot

The utility model discloses a supporting device for a welding robot, which belongs to the technical field of machining and comprises a base, a welding machine body is arranged on the base, and a supporting adjusting mechanism is arranged between the base and the welding machine body. The supporting adjusting mechanism comprises a height adjusting assembly, an angle adjusting assembly and a horizontal moving assembly, the height adjusting assembly comprises a mounting box arranged on the base, a supporting column is slidably arranged in the mounting box, the angle adjusting assembly comprises a rotating rod rotationally arranged in the supporting column, and one end of the rotating rod is connected with an adjusting plate; the other end of the rotating rod is connected with an adjusting gear, the adjusting gear is connected with an adjusting rack in a gear-rack meshing mode, one end of the adjusting rack is connected with an electric telescopic rod, the electric telescopic rod is connected with the supporting