Crawling robot with guide rail

The invention discloses a crawling robot with a guide rail. The purpose of the invention is to solve the technical problem of automatic crawling required when operation is carried out on a large-scale surface. The robot mainly comprises an operation tool carrying platform, a guide rail, a clamping groove, a guide rail meshing platform, a transmission device, a buckle, a lifting device, a suction cup, a universal joint, a fixed connecting rod, an obstacle sensor and a transmission device mounting groove. Firstly, the robot is attracted to a large plane. When the robot needs to move, the needed movement amount in the x-axis direction and the needed movement amount in the y-axis direction are calculated firstly, then the suction cup of the robot relieves the suction state and recovers the suction state in turn according to the specific step flow, the suction cup correspondingly moves along the x-axis guide rail and the y-axis guide rail, and therefore movement of the robot is achieved. And after moving in place,