Precise machine tool sliding rail protection device

The utility model discloses a slide rail protection device of a precision machine tool, relates to the technical field of slide rails of machine tools, and aims to solve the problem that the service life of a slide rail is influenced due to the fact that abrasion of connecting parts of a bearing table and a slide rail is easy to accelerate when a workpiece with large mass is borne due to lack of a protection device between the machined bearing table and the slide rail of part of existing machine tools. According to the technical scheme, the machine tool comprises a machine tool body, two sliding rails which are symmetrically distributed are fixedly arranged at the top of the machine tool body, a sliding plate is arranged at the tops of the two sliding rails in a sliding mode, a longitudinal protection assembly and a horizontal protection assembly are arranged between the two sliding rails and the sliding plate, and a driving sliding block is fixedly arranged at the bottom of the sliding plate; and two positio