Cable protective layer maintenance robot

The invention belongs to the field of bridge cable maintenance, and discloses a cable protective layer maintenance robot which comprises a climbing front body, a climbing rear body, a robot body and a robot body. The track platform is arranged on a cable in a surrounding mode, the climbing front body is connected with the track platform and drives the track platform to move along the cable, and the track platform is provided with a guide rail; the maintenance device is installed on the guide rail, the maintenance device comprises a repairing module, the repairing module comprises a first movable sliding table, a camera assembly, a hot melting assembly and a repairing mold, the first movable sliding table is in sliding fit with the guide rail, and the camera assembly is arranged on the first movable sliding table; the camera assembly and the hot melting assembly face a cable and are both installed on the first movable sliding table. The repairing mold is installed at the end, facing the cable, of the hot melti