Bumper drilling positioning tool

The utility model discloses a bumper drilling positioning tool which comprises a base, a support, a rotating shaft, a connecting piece, a supporting plate, a supporting rod, a pressing buckle, a gear and a spring. The top end of the bracket is movably connected with the connecting piece through a rotating shaft; more than one through hole is formed in the plate surface of the supporting plate, and threads are arranged in the through holes; a supporting rod is arranged in the through hole; the bottom of the supporting rod is provided with a thread matched with the through hole. A movable groove is formed in the middle of the back face of the supporting plate. The movable groove is fixed with one end of a spring; the other end of the spring is fixed to the tail end of the pressing buckle, and the pressing buckle moves up and down in the movable groove. The middle of the pressing buckle is of an arc-shaped structure, and teeth are arranged in the arc face. And a gear is arranged on the shaft body of the rotating