Engineering machinery welding robot

The utility model discloses an engineering machinery welding robot relates to welding robot field, including operating floor and welding robot body, the welding robot body is fixed on the upper surface of operating floor, the middle part of operating floor is provided with round hole, the inner wall of round hole is fixedly connected with fixed ring, and the fixed ring is fixed on the operating floor. A tooth block is fixedly connected to the inner ring of the fixing ring, annular grooves are formed in the upper surface and the lower surface of the fixing ring, a first sliding seat and a second sliding seat are arranged in the round hole, a gear is arranged in the first sliding seat and is in meshed connection with the tooth block, and a first motor is fixedly connected to the bottom of the first sliding seat; and the gear is fixedly connected to a driving shaft of a first motor. According to the engineering machinery welding robot, any position of the horizontal plane of a plate can be welded through multipl