High-altitude welding robot

The invention discloses a high-altitude welding robot, and belongs to the technical field of welding equipment. The high-altitude welding robot comprises a base. A telescopic arm is installed on the base. A material-welding disc is rotationally installed in one side, located on the telescopic arm, of the base. A material-welding roll is arranged on the material-welding disc. A transmission box is installed at the top end of the telescopic arm. The transmission box is internally provided with a driving cone gear which is driven by a motor. A mechanical hand which is transmitted by the driving cone gear is installed on the transmission box. A welding gun is installed at the top end of the mechanical hand. A wire-feeding mechanism which conveys welding materials to the welding gun is arranged on the transmission box. A plurality of suckers are installed on one side of the transmission box along the periphery of the transmission box. Clamping arms are installed on the transmission box. The multiple suckers surrou