Thermal deformation of CNC lathes is due to dimensional changes caused by heat accumulation during the working process of the machine tool, which in turn affects the machining accuracy. The following are some common measures to prevent thermal deformation of CNC lathes:

1. Material selection: CNC lathes choose high-quality materials with low thermal expansion coefficients to manufacture machine tool structures, such as cast iron, ductile iron or special alloy steel. The thermal expansion coefficient of these materials is relatively low, which can reduce the impact of thermal deformation on the accuracy of machine tools.

2. Structural design: Optimize the structural design of the CNC lathe and adopt a symmetrical structure and reinforcement arrangement to reduce the impact of thermal deformation on the machine tool. At the same time, rationally designing the heat dissipation structure of the machine tool to enhance the heat dissipation capacity will help reduce heat accumulation.

3. Processing technology: Use appropriate coolant and cooling methods during CNC lathe processing, such as water spray cooling or cooling oil cooling, to reduce the temperature of the machine tool and slow down the accumulation of heat.

4. Temperature control: Monitor and control the temperature of CNC lathes, using a constant temperature control system or temperature compensation technology to promptly adjust the temperature of the machine tool working environment to keep the machine tool within a stable operating temperature range.

5. Preheating treatment: Preheating treatment is carried out before the CNC lathe is operated, so that each component of the machine tool reaches a stable operating temperature and reduces the impact of thermal deformation.

6. Regular maintenance: Carry out regular maintenance and upkeep on CNC lathes to keep all parts of the machine tool in good condition and reduce thermal deformation caused by wear or loosening of parts.

7. Working condition control: Control the working conditions of CNC lathes, such as avoiding long-term continuous processing, reducing overload work, etc., to reduce thermal deformation of the machine tool due to excessive workload.

Taking the above measures together can effectively reduce the thermal deformation of CNC lathes and improve processing accuracy and stability.