1. The core role of the hydraulic station of CNC machine tools

In modern CNC machine tools，Hydraulic stationIt is a key component of power transmission and precision control, and its core values are reflected in the following three aspects：

1. High-precision power output

• 液压系统通过液压泵将电能转化为液压能，驱动伺服油缸或液压马达，实现机床主轴、刀架等部件的Nanoscale positioning(Error ≤±1µm) to meet the needs of precision machining.
• Case scenario: A five-axis linkage CNC machine tool adopts closed-loop hydraulic control. When machining aero-engine blades, the surface roughness is increased from Ra 3.2µm to Ra 0.8µm.

1. Dynamic response and load adaptation

• 液压站的快速响应特性（毫秒级）可匹配机床的瞬时负载变化，如在重型切削中通过Variable pump speed regulationAutomatically adjust the pressure (range 5-20MPa) to avoid overload and shutdown.

1. Intelligent control integration

• 现代液压站配备PLC控制器或工业物联网模块（如西门子MindSphere），实时监控油温、压力、流量参数，并与数控系统（CNC）联动实现Adaptive processing mode switching。

---

2. The working principle and technical highlights of the hydraulic station of the machine tool

With a typicalClosed hydraulic circuitFor example, its workflow can be divided into four steps：

1. Power input

• The servo motor drives a two-way quantitative pump to pressurize the hydraulic oil to the system.

1. Direction and flow control

• 比例阀组根据CNC指令调节油液流向（如进油/回油）及流量，控制执行元件（油缸/马达）动作。

1. 能量回收与节能

• AdoptAccumulatorStore excess pressure energy, or pass through when the machine is emptyRegeneration circuitConvert kinetic energy into thermal energy, and the energy-saving efficiency can reach 20%-30%.

1. Fault warning system

• The embedded sensor monitors indicators such as oil pollution and seal leakage in real time, and predicts the risk of component failure 30 hours in advance through vibration analysis.

---

3. Safety guarantee mechanism of the brake system of the hydraulic station

When the machine tool is machining at high speed or when there is a sudden power failure, the braking system needs to beWithin 50msAchieve shutdown to prevent mechanical damage or scrap of workpieces. Comparison of mainstream braking technology solutions：

Technology type	Working principle	Applicable scenarios
Electromagnetic brake brake	Power failure instantly triggers the excitation coil to adsorb the brake pads	Low-speed machine tools, small machining centers
Hydraulic release brake	Pressure oil pushes the piston to open the brake disc	High-torque heavy-duty machine tools (such as boring machines)
Dual redundant braking system	The main and standby hydraulic circuits are triggered at the same time	Military-grade CNC machine tools (such as aviation manufacturing)

---

Conclusion

The technological upgrading of machine tool hydraulic stations is driving the manufacturing industry toHigh-precision, intelligent, and green方向发展。选择专业厂家时，需结合具体加工需求（如材料硬度、切削速度）与长期成本效益综合评估，方能在保障生产安全的同时实现效率化。