Packaging box conveying manipulator

The invention discloses a packaging box conveying manipulator, and relates to the technical field of manipulators, the packaging box conveying manipulator comprises a base, an electric push rod is fixedly mounted on the base, a first bevel gear is fixedly mounted at the output end of the electric push rod, a servo motor is fixedly mounted at the top end of the first bevel gear, and a top rod is fixedly mounted at the output end of the servo motor; a middle plate is fixedly mounted at the end, away from the servo motor, of the ejector rod, a clamping arm mechanism is mounted on the side wall of the middle plate, two long rods are slidably mounted in the middle plate, expanding plates are fixedly mounted at the ends, away from each other, of the two long rods, and side pushing plates are fixedly mounted at the bottom ends of the expanding plates. The clamping arm mechanism clamps the packaging box and then conveys the packaging box, and in the conveying process of the mechanical arm, the mechanical arm passivel