Automatic middle groove paint spraying equipment

The utility model discloses automatic middle groove paint spraying equipment. The automatic middle groove paint spraying equipment comprises a mobile workbench, an automatic outer surface paint spraying body, an automatic lower chain channel paint spraying body and a control system, and the mobile workbench comprises a trolley moving in the Z direction; the automatic outer surface paint spraying body comprises a body frame, a first X-direction sliding plate sliding in the X direction is arranged on a beam of the body frame, a Y-direction sliding plate is fixedly arranged on one side of the first X-direction sliding plate, a steering motor is horizontally arranged below the Y-direction sliding plate, and the output end of the steering machine is perpendicularly connected with an outer surface spraying gun; the automatic lower chain channel paint spraying body comprises a lower chain frame, a second X-direction sliding plate is arranged on the upper portion of a lower chain channel frame, and a Y-direction conn