New energy battery box robot welding device

The utility model discloses a robot welding device for a new energy battery box, relates to the technical field of new energy battery box welding, and aims to solve the problems that in an existing new energy battery box welding device, welding displacement adjustment of a battery bin is not flexible, and energy consumption is high; the single-motor servo position changing machine comprises a single-motor servo position changing machine assembly, a position changing bed assembly and an air cylinder clamp assembly, the single-motor servo position changing machine assembly further comprises a transmission box and a transmission shaft protection plate, the position changing bed assembly is arranged on the inner side of the single-motor servo position changing machine assembly, and the air cylinder clamp assembly is arranged on the outer side of the single-motor servo position changing machine assembly. The transmission shaft sleeve, the servo motor, the conical gear shaft, the double-end conical tooth transmissi