1. The guide rail of CNC lathe is the benchmark for the relative motion position of the main components of the machine tool, and its accuracy directly affects the relative position relationship between the forming movements of the machine tool.
2. The error of the machine tool guide rail mainly includes the straightness error in the horizontal plane and vertical plane of the guide rail; The parallelism error of the front and rear rails in the perpendicular plane.
3. The study shows that the thermal deformation of the guide rail will lead to the uplift of the guide rail surface, the tilt of the guide rail edge and the deflection and linear positioning error of the guide rail, and the movement of the table on the guide rail after thermal deformation will affect the relative position of the turning tool and the workpiece, thereby affecting the accuracy of the lathe and affecting the processing quality of the workpiece.