The CNC vertical lathe adopts a high rigidity structure design, and the X-axis adopts a positioning moving column structure with three guide rails. It has a large load-bearing section, making the machine tool highly rigid and shock-absorbing, ensuring high-precision and high-load cutting processing. The front and rear ends of the high rigidity spindle are equipped with imported high-precision spindle bearings, with ideal span support and appropriate preload applied to ensure the spindle has high-precision, high rigidity, and high-speed rotation capabilities.
Thermal characteristics are one of the important factors that affect the machining accuracy of CNC vertical lathes. Due to its spindle speed and feed speed being much higher than ordinary machine tools, the impact of hot cutting generated by large cutting amounts on the workpiece and heat conduction is much more severe than that of ordinary machine tools, and the impact of thermal deformation on CNC Machining Lighting Parts accuracy is often difficult to be corrected by the operator. Therefore, measures to reduce the impact of thermal deformation on the machine tool should be given special attention, and commonly used measures include the following:
1. Improve machine tool layout and structural design
For heat sources that are relatively symmetrical, thermal symmetry structures are used, such as inclined bed bodies, flat bed bodies, and inclined sliding plate structures. Some heavy-duty machine tools adopt thermal balance measures due to structural limitations.
2. Control temperature rise
Adopting methods such as heat dissipation, air cooling, and liquid cooling to control the temperature rise of the heating parts (such as the spindle box, hydrostatic guide hydraulic oil, etc.) to absorb the heat emitted by the heat source is a commonly used strategy on various CNC machine tools to reduce the impact of thermal deformation.
3. Thermal displacement compensation
Predict the thermal deformation law, establish a mathematical model, and store it in a computer for real-time compensation.
4. Take strong cooling measures on cutting parts
During high cutting volume Laser Cutting Optic Parts, the amount of hot chips that fall on components such as the workbench and bed is an important heat source. Multiple nozzles and large flow of coolant are commonly used to cool and eliminate these hot chips, and the coolant is circulated for heat dissipation with large capacity or cooled with cooling devices to control temperature rise.