Steel bar cutting machine

The utility model relates to the field of steel bar cutting, and discloses a steel bar cutting machine which comprises a bottom plate, fixing plates are arranged at the two ends of the top face of the bottom plate, moving plates are arranged on the opposite sides of the two fixing plates, connecting plates are arranged on the opposite sides of the two fixing plates, and second sliding rods are arranged at the two ends of each fixing plate in a penetrating mode. One end of each second sliding rod is connected with the connecting plate, the other end of each second sliding rod is connected with the moving plate, a threaded rod is arranged between the two second sliding rods, one end of the threaded rod is connected with the moving plate, and the other end of the threaded rod penetrates through the connecting plate; according to the steel bar cutting device, steel bars with different diameters can be clamped and fixed, the situation that the cutting faces of the steel bars are irregular due to the displacement p