Screening device for steel ball machining

The utility model discloses a screening device for steel ball processing, which comprises a screening device, a switch, a start key, a pause key, a base, a fixed plate, a support plate, a display screen and an alarm lamp, the switch is located on the front side of the screening device, the start key is located on the front side of the screening device, the pause key is located on the front side of the screening device, and the base is located on the support plate. The bases are located at the four corners of the bottom of the screening equipment, and the fixing plate is located at the top of the screening equipment. By arranging a clamping structure, a movable rod is pulled rightwards, a movable plate is driven to move rightwards while the movable rod is pulled rightwards, an elastic spring is driven to contract while the movable plate moves rightwards, a first cylinder at the top of the movable plate is driven to move, and meanwhile the movable plate is driven to move rightwards; the movable plate drives the