The basic requirements that the guide rail of CNC lathe must meet

The function of the CNC lathe guide rail is to guide and support, that is, to support the moving parts, so as to ensure that the moving parts can move accurately along the predetermined direction under the action of external forces. Therefore, the guide rail must meet the following basic requirements:

1. High positioning accuracy

The guidance accuracy refers to the position accuracy between the machine tool chest piece and the relevant base plane when it moves along the guide rail. Yintai linear guide rail shall have sufficient guidance accuracy no matter it is unloaded or machined. The main factors affecting the accuracy of the guide rail are: the structural form of linear guide rail, the quality of guide rail manufacturing and assembly, the rigidity of guide rail and foundation components, etc.

2. High precision retention

Accuracy retention refers to the ability of the guide rail to maintain the guidance accuracy during long-term use. The main factors affecting the accuracy are: the wear of guide rail, the stability of linear guide rail structure and supporting materials such as bed, column, etc.

3. Good friction performance

When moving parts move at low speed or have small displacement on the linear guide rail, the movement shall be stable without creeping. This requirement is particularly important for CNC machine tools. It requires small friction coefficient of linear guide, small difference between dynamic and static friction coefficients, and good friction damping. In addition, Yintai linear guide rail has the characteristics of simple structure and excellent process, which is convenient for processing, assembly, debugging and maintenance.