Abstract:Crawler has been widely used in automatic marine welding as it is of simple structure together with high performances on sport and stability. To avoid skidding crawler mobile mechanism, and the robot has to a certain slope of crawling welding ability of workpiece, the design of magnetic adsorption mechanism and magnetic absorption force analysis is particularly important. After choice of magnetic materials and analyzing magnetic circuit, this paper finished the welding robot magnetic absorption force analysis, and consequently completed the magnetic adsorption mechanism design. On the basis of above work, this paper also utilized MAXWELL software ANSOFT to analyze magnetic force and magnetic flux density. The research work of this paper provide the basis for selection of the drive motor, as the robot stability, exercise performance and provides the theoretical guarantee gradeability.