Patent ID: 8813610

Claim:
An automatic screw tightening apparatus to fasten at least one screw into at least one screw hole on a workpiece, comprising: a work platform; a movable carrying deck including a carrying portion to carry and hold the workpiece and a movement portion connected to the carrying portion to control the workpiece moved sequentially to a first position, a second position and a third position; an image observation module which is fixedly located on the work platform corresponding to the first position and observes a screw hole position of the workpiece to provide screw hole information; a screw fastening module which is fixedly located on the work platform corresponding to the second position and receives the screw hole information and fastens the at least one screw to the workpiece; and a fastening inspection module which is fixedly located on the work platform corresponding to the third position and inspects fastening correctness of the at least one screw.