Protective device for sliding rail of machine tool

The utility model relates to the technical field of production protection appliances, in particular to a machine tool sliding rail protection device which comprises a working table, a protection shell covers the periphery of the working table, a cutting platform is arranged on one side of the working table, a sliding rail is arranged on the other side of the working table, and an installation base is installed on the sliding rail in a sliding mode. A cutting device is arranged on the mounting base, organ protective covers are arranged at the two ends of the sliding rail correspondingly, one sides of the organ protective covers are connected with the protective shell correspondingly, fixing columns are arranged on the other sides of the organ protective covers correspondingly, and a sliding plate is arranged on the side, close to the organ protective covers, of the mounting base through mounting blocks; the sliding plate is provided with a limiting hole, and the limiting hole is connected with the fixing colum