Precise surface grinding machine capable of machining three surfaces

The utility model discloses a precise surface grinding machine capable of machining three surfaces, which comprises a base, a movable table is arranged above the base, L-shaped plates are arranged on both sides above the movable table, a limiting groove is arranged at the top of the movable table, a movable support frame is movably connected in the limiting groove, and a movable support is arranged in the movable support frame. The top of the movable supporting frame and the top of the end, away from the movable supporting frame, of the movable table are rotationally connected with rotating shafts correspondingly, and the ends, close to each other, of the two rotating shafts are fixedly connected with the two L-shaped plates correspondingly. The utility model relates to the technical field of a precise surface grinding machine capable of machining three surfaces, and solves the problems that after the top of a workpiece is ground, the workpiece needs to be overturned again by virtue of other instruments to ma