Deburring device for valve body pipeline casting part

The utility model discloses a valve body pipeline casting deburring device which comprises a machine base, a polishing head is movably installed at the upper end of the machine base, a base is installed on the surface in the machine base, a rotating rod is movably installed in the base, the two ends of the rotating rod extend to the outer side of the base, a first gear is installed at the upper end of the rotating rod, and a second gear is installed at the lower end of the rotating rod. A servo motor is installed at the lower end of the rotating rod, and the bottom of the servo motor is fixedly installed on the surface of the machine base. The servo motor, the first gear, the connecting rod and other parts are arranged, the servo motor enables the first gear to rotate to drive the second gear to be meshed, the second gear rotates to enable the movable pin moving in the second gear to move along with the second gear, and the connecting rod extends outwards to push the limiting plate to extrude the interior of