Automatic centering device for bench drill

The utility model discloses an automatic centering device for a bench drill, which comprises a working table and a bench drill main body arranged on the working table, the connecting mode of the working table and the bench drill main body is common knowledge, so that the bench drill main body is not drawn in the description of an attached drawing, and two mounting plates are symmetrically arranged at the top end of the working table. A driving assembly used for driving the two mounting plates to move in the same direction is mounted in the workbench, fixing plates are arranged on the opposite sides of the two mounting plates, a plurality of telescopic rods are slidably inserted into the mounting plates, fasteners used for fixing the telescopic rods are arranged at the top ends of the mounting plates, rotating plates are mounted at the two ends of the two fixing plates through pin shafts, and the rotating plates are movably connected with the rotating plates. And the fixed plate and the two rotating plates are