Clamping and fixing device for polishing cable

The utility model discloses a clamping and fixing device for polishing a cable. The clamping and fixing device comprises a walking mechanism, an end clamp and an end part fixing mechanism, the walking mechanism comprises a moving disc, a lead screw device, a front fixing plate, a rear fixing plate and guide rods, the two guide rods are parallel, a lead screw of the lead screw device is arranged between the front fixing plate and the rear fixing plate, the two sides of the moving disc are connected with guide rod sleeves on the guide rods respectively, and the moving disc is fixedly connected with a lead screw nut of the lead screw device. The end clamp is fixedly connected with the rear fixing plate; the end fixing mechanism is close to the front fixing plate and arranged between the two guide rods, the two sides of the end fixing mechanism are connected with the guide rods respectively, an abutting screw facing the end face of the cable is arranged in the middle of the end fixing mechanism, and the cable is