Plane milling device with precise positioning function

The invention discloses a plane milling device with a precise positioning function, and relates to the technical field of machining. The slope fixing mechanism is arranged on one side of the upper surface of the mounting table; the mounting frame is arranged on the other side of the upper surface of the mounting table, a movable plate is arranged in the mounting frame, and the front side and the rear side of the movable plate are rotationally connected to the inner walls of the front side and the rear side of the mounting frame through shaft rods correspondingly; the limiting mechanism is arranged on the upper side wall of the mounting frame and is connected with the movable plate; the positioning plate is arranged on one side of the movable plate, a plurality of threaded holes are formed in the side wall, away from the movable plate, of the positioning plate at equal intervals from front to back, the positioning plate is connected with positioning blocks in a screwed mode through threaded rods, and the threa