The built-in high-speed spindle commonly used in modern machine tools is a high-tech integrated spindle design, in which the motor stator and rotor are arranged inside the spindle and integrate oil, gas, water and electricity in a limited space. , unstable factors are also integrated into one, so the technical level is relatively high, but this design can improve efficiency and accuracy, thereby reducing spindle vibration and noise. The high-speed spindle has high cutting rate and high feed rate during processing, which reduces processing time and improves production efficiency. At the same time, the built-in spindle has better rigidity and smaller vibration conditions, which promotes the geometric accuracy and surface processing of the completed workpiece. Excellent performance in thickness.
In addition, the built-in spindle also has the following features:
1. High rigidity bearing configuration:Built-in spindles are usually equipped with highly rigid bearings, which can provide better cutting accuracy and reduce the surface roughness of the workpiece.
2. Low noise and low vibration:Since the motor rotor is arranged inside the spindle, the built-in spindle can achieve low noise and low vibration.
3. Low environmental pollution:The design of the built-in spindle can reduce the scattering of lubricating oil in the environment, so the pollution to the environment is low.
4. Rich changes, integrated design:Built-in spindles usually adopt an integrated design, which can shorten the production cycle and reduce maintenance costs.
5.High speed operation:The built-in spindle can usually reach higher speeds, such as 15,000 rpm, 18,000 rpm, or even 30,000 rpm. Different levels of rotation speed can be selected depending on the needs of the processing machine.
5 basic guides to understanding built-in spindles
1.轉速範圍：在工具機的運作過程中，轉速範圍的選擇對於確保加工效率和質量至關重要。不同的材料和加工要求可能需要不同的轉速，因此選擇一個具有廣泛轉速範圍的內藏式主軸可以提供更大的操作靈活性，從而滿足各種加工需求。例如，當加工硬度較高的材料時，可能需要較低的轉速；而當加工軟質材料時，可能需要較高的轉速。因此，一個轉速範圍廣泛的內藏式主軸可以滿足各種不同的加工需求，提高生產效率。
2.功率和扭矩：主軸的功率和扭矩直接影響到加工效率和質量。一個具有高功率和高扭矩的內藏式主軸可以在短時間內完成大量的加工任務，並且能夠處理硬度較高的材料。例如，當進行深孔鑽削或者大直徑鑽削時，需要一個具有高扭矩的主軸來提供足夠的切削力；而當進行高速銑削或者鑽削時，需要一個具有高功率的主軸來確保切削效率。
3. Rigidity: The rigidity of the spindle refers to its stability when subjected to cutting forces. A rigid spindle can ensure precision during cutting and reduce the surface roughness of the workpiece. When selecting a built-in spindle, you need to consider factors such as its material, structural design, and manufacturing process. These factors will affect the rigidity of the spindle. For example, a built-in spindle made of high-strength steel with a reasonable structural design, precision machining and heat treatment will usually have better rigidity than a spindle made of ordinary steel with a simple structural design and without precision machining and heat treatment.
4. Thermal stability: The thermal stability of the spindle refers to its temperature stability after long-term operation. A spindle with good thermal stability can ensure that the cutting accuracy will not be affected or the machine will overheat due to excessive temperature after long-term operation. When selecting a built-in spindle, factors such as its heat dissipation design and the thermal conductivity of the material need to be considered.
5. Lifespan and maintenance cost: The lifespan and maintenance cost of the spindle are important factors to consider when choosing a spindle. A long-life, low-maintenance spindle can save users a lot of maintenance and replacement costs. When choosing a built-in spindle, factors such as durability, maintainability, and the price of replacement parts need to be considered.
