Efficient precise metal plate bending device

The utility model discloses an efficient and precise metal plate bending device, and relates to the technical field of metal plate machining. The bending device comprises a box body, the upper end of the box body is fixedly connected with two supporting plates, the upper ends of the two supporting plates are fixedly connected with a fixing mechanism, the inner sides of the two supporting plates are fixedly connected with a bending mechanism, the bending mechanism comprises a fixing base, and the two sides of the two fixing base are both rotationally connected with rotating shafts. One end of the rotating shaft penetrates through the supporting plate to be fixedly connected with a rotating rod, a sliding groove is formed in one end of the rotating rod, a bending rod is slidably connected to the inner surface of the sliding groove, a sliding frame is slidably connected to the outer surface of the bending rod, one side of the sliding frame is fixedly connected with the supporting plate, and a first bevel gear is