Automatic screw locking system and method

The invention provides an automatic screw locking system and method, and belongs to the technical field of screw mounting. The automatic screw locking system comprises a mounting cabinet, a conveyingrail, a feeding rail, an electric screwdriver device and a control system. A grabbing device is fixedly arranged on the mounting cabinet; the conveying rail is mounted on the mounting cabinet and usedfor conveying a workpiece; a feeding device is mounted on the mounting cabinet and used for providing different types of screws; the electric screwdriver device is connected with a connector at the tail end of the grabbing device and used for sucking screws on the feeding device and installing the screws on the workpiece of the conveying rail; a visual positioning device is arranged on the grabbing device and used for recognizing and positioning threaded holes in the workpiece; and the control system controls the electric screwdriver device to complete screw locking operation. The automatic screw locking method is use