Automatic optical detection machine capable of conveniently and stably adjusting rotation angle of display screen

The utility model discloses an automatic optical detection machine convenient for stably adjusting the rotation angle of a display screen, which comprises four supporting seats, the upper ends of the four supporting seats are fixedly connected with a mounting mechanism, and the outside of one side of the mounting mechanism is fixedly connected with a driving mechanism. The device has the beneficial effects that a first stepping motor, a first bevel gear, a second bevel gear and a second bearing are arranged to conveniently drive a threaded rod to rotate, so that a threaded sleeve can be driven to ascend under the sliding limiting action of a sliding groove and a sliding plate; the height of the displayer is conveniently adjusted through the supporting rod, a sliding plate is conveniently limited through a second mounting hole, a limiting rod and a limiting groove, the stability of the displayer after height adjustment is improved, meanwhile, the displayer is conveniently and stably driven to rotate through a