What are the methods to prevent the deformation of thermal characteristics of Vertical NC lathe?

Why does the vertical CNC lathe show deformation? This is because the thermal characteristics of the lathe are one of the important factors affecting the machining accuracy.

The common methods for reducing thermal characteristics of vertical CNC lathes are as follows:

1. Improve the layout and structural design of CNC lathe. For example, the heat source is relatively symmetrical, and the thermal symmetrical structure is selected; CNC lathe adopts inclined bed, flat bed and inclined sliding plate structure; Due to structural limitations, some heavy CNC vertical lathe adopts heat balance method.

2. Control temperature rise: control the temperature rise of heating parts of CNC lathe (such as headstock, hydrostatic guide rail, hydraulic oil, etc.) Through heat dissipation, air cooling, liquid cooling, etc. Absorbing heat from heat source is the countermeasure to reduce the influence of thermal deformation. Thermal deformation is widely used in various CNC lathes.

3. For cutting parts: adopt strong cooling method. When the cutting amount is large, the amount of hot chips falling on worktable, bed and other parts is an important heat source. Modern CNC machine tools usually use multi nozzle and large flow coolant to cool and remove these thermal debris, and use large-capacity circulating coolant or cooling device to cool the coolant to control the temperature rise.

4. Thermal displacement compensation: guess the thermal deformation rules, establish a mathematical model and store it in the computer for real-time compensation.

The above are some solutions to avoid the deformation caused by the thermal characteristics of vertical CNC lathe. I hope it can help you.