Novel numerical control machine tool guide rail protection device

The utility model belongs to the technical field of numerically-controlled machine tool equipment, particularly relates to a novel numerically-controlled machine tool guide rail protection device, and aims to solve the problems that the movement of a sliding block in a guide rail is possibly influenced when sweeps enter the guide rail, the accuracy and the stability of the movement of the guide rail cannot be ensured, and the guide rail is possibly damaged if more sweeps enter the guide rail. According to the technical scheme, a guide rail is fixedly installed at the upper end of a positioning base plate, one side of each first fixing plate is fixedly connected with an elastic shielding belt used for shielding scraps from entering the guide rail, the bottoms of the two first fixing plates are each provided with a scrap cleaning assembly, and one side of a guide rail shell is provided with a scrap absorbing assembly. A large amount of sweeps are prevented from entering the guide rail, a small amount of sweeps