Welding robot

The utility model provides a welding robot, include soldered connection, revolving stage, forearm and with forearm articulated postbrachium, the forearm includes an actuating mechanism and drive tongs the 2nd rotatory actuating mechanism of tongs, the upset of drive tongs, the postbrachium includes first fixed plate, second fixed plate, the first arm board, second arm board and pull rod. Four motors are connected with the one end of a long section of thick bamboo, and the other end of a length section of thick bamboo is connected with an actuating mechanism, and an actuating mechanism is connected with the tongs, can drive tongs integral rotary through the rotation of the long section of thick bamboo of four Motors drive, and the third motor can drive the tongs through sectorial gear transmission set and wholly overturn around first pivot, with the output shaft setting of the 5th motor in the rotary drum, this output shaft can make that the forearm is whole rotate around the postbrachium through tie rod drive