Welding robot with height adjusting device

The utility model relates to the technical field of welding robots, and discloses a welding robot with a height adjusting device, which comprises a workbench, two fixing grooves are fixedly connectedto the upper end of the workbench in a bilateral symmetry manner, and the same U-shaped supporting plate is connected to the interiors of the two fixing grooves in a sliding manner. A cavity is formedin the lower end of the U-shaped supporting plate, a first double-shaft motor is fixedly connected in the cavity, output shafts at the two ends of the first double-shaft motor both penetrate throughthe U-shaped supporting plate and are fixedly connected with gears, and grooves are formed in the inner walls of the left side and the right side of the fixing groove. And a rack meshed with the gearis fixedly connected to the inner wall of the groove. The welding robot with the height adjusting device has the advantages that a welding head can be adjusted and moved in a large-area and all-aroundmode, the welding range is g