The guide rail of CNC machine tools is one of the basic components of machine tools. It is mainly used for the support and guidance of machine tool beds and mobile machine tool parts. Commonly used guide rail types include linear guide rails, ball screw guide rails, cylindrical guide rails, etc. Their characteristics are introduced below.

1. Linear guide rail

Linear guide rail is the most commonly used type of guide rail in CNC machine tools. It has the characteristics of simple structure, long service life and high stiffness. Linear guides are widely used in high-precision motion devices such as various CNC machine tools, precision machine tools, and robots. The disadvantage of linear guides is that except for the linear direction, the stiffness is poor in other directions. When the lateral load is large, it is prone to vibration, noise, and loss.

2. Ball screw guide

The ball screw guide uses the force between the balls and the screw to move the machine tool. It is characterized by high precision and high stiffness. The ball device uses rolling friction instead of sliding friction, with a small friction coefficient and high efficiency. Ball screw guides are widely used in various high-precision CNC machine tools, metal processing machine tools, glass processing machine tools, etc., which can effectively improve the processing accuracy of machine tools and the stability of movement, and improve production efficiency.

3. Cylindrical guide rail

Cylindrical guide rails are one of the more commonly used types of guide rails in machine tools. They are usually suitable for larger and heavy-duty machine tools. They have the characteristics of high stiffness, strong heavy-load capacity, low friction, and adaptability. Cylindrical guide rails are widely used in various types of ships, heavy machinery, special equipment, engineering machinery and other fields, and are widely used in automated production lines.

In general, guide rails play a vital role in the processing quality and accuracy of machine tools. The selection of machine tool guide rails should comprehensively consider factors such as the machine tool's working attributes, application scenarios, processing technology, and accuracy requirements. Whether it is linear guide rails, ball screw guide rails or cylindrical guide rails, they have their own characteristics and scope of application, so when selecting guide rails, you should choose according to the specific situation.