The main methods to prevent the thermal properties of vertical CNC lathes from deforming are as follows:

1. Improve the machine tool layout and structural design: Vertical CNC lathes improve the symmetry and thermal balance of the machine tool by optimizing the machine tool layout and structural design. For example, adopt a thermally symmetrical structure, use inclined bed, flat bed and inclined plate structure, or adopt thermal balance measures in some heavy-duty CNC machine tools.

2. Control the temperature rise: For the heating parts of the CNC lathe, such as the spindle box, hydrostatic guide rail hydraulic oil, etc., use methods such as heat dissipation, air cooling and liquid cooling to control the temperature rise. This helps absorb heat from the heat source and reduces the effects of thermal deformation.

3. Take strong cooling measures for the cutting parts: When the vertical CNC lathe is cutting large amounts of cutting, the hot chips falling on the workbench, bed and other components are an important heat source. Therefore, multiple nozzles and large-flow coolant are used to cool and remove these hot chips, and at the same time, large-capacity circulation heat dissipation or cooling device refrigeration is used to control the temperature rise.

4. Reduce heat: Try to reduce the heat sources inside the vertical CNC lathe. For heat sources that cannot be separated from the host machine, their friction characteristics and lubrication conditions should be improved to reduce heat. For example, precision rolling bearings and oil mist lubrication, as well as hydrostatic bearings, are used on the spindle components to reduce heat generation.

5. Optimize chip removal and heat insulation measures: Vertical CNC lathes that produce a large amount of chips should be equipped with a complete chip removal device to take away the heat as quickly as possible. At the same time, install a heat shield on the workbench or guide rail to isolate this heat from the machine tool.

In general, methods to prevent the thermal characteristics of vertical CNC lathes from deforming involve many aspects such as machine tool design, cooling system, lubrication system, and chip removal system. By comprehensively applying these methods, the thermal deformation of the machine tool can be effectively reduced, and the processing accuracy and stability of the machine tool can be improved.