Launching device for underwater robot

The utility model relates to a launching device for an underwater robot, which belongs to the technical field of underwater robots and comprises a launching box body, a take-up and pay-off mechanism is arranged in the launching box body and comprises a winding mechanism, a cable arranging mechanism and a cable, one end of the cable is fixedly connected with the winding mechanism, and the other end of the cable penetrates through the cable arranging mechanism to be fixedly connected with the underwater robot. The wire arranging mechanism comprises two first fixing plates, a first motor, a limiting plate, a first lead screw and a sliding block, the two ends of the first lead screw are rotationally connected with the two first fixing plates respectively, the limiting plate is horizontally arranged between the two first fixing plates, the output end of the first motor is fixedly connected with the first lead screw, and the front end and the rear end of the sliding block are each symmetrically provided with two wi