Flange end face grinding device

The invention belongs to the technical field of grinding devices and particularly relates to a flange end face grinding device. The flange end face grinding device comprises a motor, a rotary shaft, arotary platform and grinding bars. The end face of the rotary platform is symmetrically provided with two cavities with openings. The two cavities are provided with two locating grooves communicatingwith each other. The bottoms of the two locating grooves are provided with through holes. Two fixed rods are further arranged in the rotary platform. The two ends of the two fixed rods penetrate through the corresponding through holes to be inserted into the two locating grooves. A first wedge bar and a rack are connected to the two fixed rods correspondingly. The first wedge bar is provided withgear teeth. The first wedge bar and the rack are both engaged with a first gear. One end of a second wedge bar and one end of a connecting rod are both slidably connected to the interior of the rotary platform. The second wedg