Metal material fracture performance wedging test device

The invention discloses a metal material fracture performance wedging testing device and relates to the technical field of material testing, thereby solving problems that an existing metal material fracture performance testing device is poor in adaptability and inconvenient to operate. The metal material fracture performance wedging test device comprises a U-shaped supporting plate, a display device is mounted on one side of the U-shaped supporting plate; a connecting plate is mounted on the inner side of the U-shaped supporting plate; first hydraulic cylinders are mounted on the upper surfaceof the connecting plate and the lower surface of the upper end of the U-shaped supporting plate; a stretching mechanism is installed at one end of the first hydraulic cylinder, lead screws are installed at the two ends of the connecting plate, driven wheels are installed at one ends of the lead screws, sliding rods are arranged on the two sides of the lead screws, the lead screws and the slidingrods are arranged in conne