Automatic stone unloading machine

The utility model discloses an automatic stone unloading machine, which relates to the field of stone unloading, and comprises a support frame, a linear driving mechanism, a lifting mechanism, an unloading mechanism and a turnover mechanism, the support frame comprises four stand columns, the inner side surfaces of the left and right stand columns are fixedly provided with the same mounting beam, the tops of the four stand columns are fixedly provided with the same top frame, and the top frame is fixedly provided with the same mounting beam. Under the action of the spring, the U-shaped self-adaption frame can be adjusted in a self-adaption mode according to the inclination angle of a stone slab, then the stone suction cups make contact with the stone slab to suck the stone slab, the slab unloading mechanism and the stone slab are lifted at the same time by controlling the lifting air cylinder to stretch, and the stone slab unloading device is simple in structure and convenient to use. And then the linear driv