Bundled bar end face automatic labeling robot system and method based on 3D vision

The invention discloses a robot system and method for automatically labeling end faces of bundled bars based on 3D vision, and belongs to the technical field of bar finishing in the metallurgical industry. The conveying mechanism is used for conveying bundles of bars; a 3D visual positioning unit, a robot execution unit and a label printing unit are arranged on one side of the conveying mechanism; the 3D visual positioning unit is used for positioning the end faces of the bundled bars, the label printing unit is used for printing labels, and a labeling device used for operating the labels is installed at the tail end of the robot execution unit. On-line labeling can be completely achieved, and the working efficiency is improved; the 3D visual identification technology is used for accurately positioning the end face position of the bar, and the labeling accuracy is guaranteed; and the labor intensity of operators is reduced, unstable manual operation is reduced, the operators are freed from a severe working en