The invention discloses a thread tightening device based on
visual positioning and a control method. The device comprises a
robot, a
control system, a feeding mechanism, a visual measurement module and a tightening tool, wherein the
control system is in communication connection with the
robot and the tightening tool; the feeding mechanism comprises a rack, a conveying belt, a material disc, material baffles, a blocking air cylinder, a clamping air cylinder and a
photoelectric sensor, the conveying belt is installed on the rack, the material disc is placed on the conveying belt, the material baffles are installed on the two sides of the conveying belt, the blocking air cylinder and the clamping air cylinder are installed on the same side of the material baffles, and the
photoelectric sensor is installed on the opposite side of the blocking air cylinder; and the vision measurement module is installed on the rack, the tightening tool is installed on a
flange of a sixth shaft of the
robot, and the vision measurement module is located above a tightening operation area. According to the thread tightening device based on
visual positioning and the control method, the positions of a plurality of bolts can be rapidly positioned, the tightening torque is controlled through
programming, the thread tightening control precision is improved, and the expected tightening effect of thread connection can be achieved.