Manipulator for conveying pipes

The invention relates to a manipulator for conveying pipes and discloses a manipulator system for reverse feeding of the pipes different in length and section shape. The manipulator system is composed of a set of manipulators coaxially arranged. Each manipulator comprises an upper clamping jaw, a lower clamping jaw, a connecting rod set, an air cylinder, a connecting rod, a support shaft, an electric actuator, a guide rail and a roller. The whole manipulator is fixed on a square shaft of a base through a square hole formed in the manipulator and driven to rotate by rotating of the square shaft on the base. The manipulator for conveying the pipes has the advantages of easily guaranteed precision, stable motion, high feeding efficiency, wide application range and the like, and capabilities of being applicable to reverse feeding of the pipes different in length and section shape in different pipe machining equipment.