The feed transmission system of a CNC lathe is one of its core components, responsible for converting rotational motion into linear motion to drive the tool to perform precise cutting of the workpiece. This system has several notable features, which are specifically reflected in the following aspects:

1. High precision: The CNC lathe feed transmission system uses precision transmission devices, such as screws, ball screws, etc., to achieve high-precision position control. Through precise calculation and control, sub-micron level accuracy can be achieved to meet the needs of high-precision processing. This high-precision feature is crucial for manufacturing precision parts and ensuring product quality.

2. High rigidity: CNC lathe systems use high-rigidity transmission devices, such as linear guides, ball screws, etc., which can maintain stable rigidity during high-speed movement. This can effectively reduce vibration and deformation and improve processing quality and efficiency. High rigidity also helps reduce the impact of cutting forces on machine tools and improves the service life of machine tools.

3. High speed: The CNC lathe feed transmission system uses high-speed transmission devices, such as servo motors, frequency converters, etc., to achieve high-speed feed motion. This can greatly improve processing efficiency, shorten processing cycles, and increase production capacity. In the manufacturing industry, high-speed processing is of great significance for improving production efficiency and reducing costs.

4. Small frictional resistance: In order to improve the quick response performance and movement accuracy of CNC lathes, the feed transmission system generally uses ball screw and nut pairs, hydrostatic screw and nut pairs, rolling guides, etc. to reduce the frictional resistance and friction between moving parts. The difference between dynamic and static friction. At the same time, appropriate damping is also considered for each moving part of the CNC lathe to ensure the stability of the system.

5. High transmission accuracy and stiffness: The transmission accuracy and stiffness of CNC lathes mainly depend on the transmission clearance and the accuracy and stiffness of the screw nut pair, worm gear pair and their supporting structure. Feed transmission systems widely adopt preloading force or other measures to eliminate gaps to improve transmission accuracy. Increasing the diameter of the screw in CNC lathes and applying pre-tightening force to the screw nut pair, supporting components, and the screw itself are also effective measures to improve transmission stiffness.

To sum up, the feed transmission system of CNC lathes has the characteristics of high precision, high rigidity, high speed, low friction resistance, high transmission accuracy and rigidity. These characteristics make CNC lathes have broad application prospects in the manufacturing industry, capable of meeting the processing needs of various complex workpieces and improving production efficiency and quality.