Design of Nuclear Grade Pipe Fittings Marking Production Line Based on Intelligent Robot

In the construction of nuclear power engineering, there are many kinds of pipe fittings. The marking of traditional nuclear grade pipe fittings mainly depends on manual adjustment of the focal length and area of laser equipment, which has the problems of high error and slow speed. In order to solve this problem, this paper designs a set of automatic marking production line based on intelligent robot. This paper focuses on the design of intelligent robot automatic marking production line, the mechanical clamping and rotation control of cylindrical pipe fittings, the conveyor belt conveying of irregular pipe fittings, the automatic positioning technology of mechanical arm and the laser marking and automatic inspection system. By using a line scanning camera and a laser lens to accurately identify the cylindrical pipe fittings, combined with a plane array camera and a laser displacement sensor to achieve automatic positioning and focal length adjustment of irregular pipe fittings, and supporting automatic inspection, manual color marking and automatic drying and offline storage, the system is verified. The significant advantages in improving the speed, accuracy and intelligence level of the marking provide a practical solution for the automatic marking of nuclear-grade pipe fittings.