| Comparing dimensions | Traditional hydraulic press | electro-hydraulic servo system |
|---|---|---|
| dynamical system | Ordinary asynchronous motor, large in size and occupying a lot of space | Intelligent servo energy-saving system reduces power consumption by 30% -50% |
| Oil temperature control | Continuous operation leads to high oil temperature, requiring a large oil tank capacity | The servo system operates efficiently, reducing oil temperature rise and lowering fuel tank demand |
| Safety protection | Usually without specialized safety devices | Equipped with infrared grating to protect operator safety |
| Control accuracy | Low precision in pressure and position control | Pressure control accuracy of 1 bar, position control accuracy of 0.05mm |
| repeatability | Large error | ± 0.05mm, pressure error within ± 1% |
| Breakdown maintenance | Negative pressure may be generated in the oil circuit, resulting in a high failure rate | No negative pressure in the oil circuit, low failure rate, and extended lifespan of hydraulic components |
| Intelligent functions | Lack of automatic alarm and reset functions | Automatic fault alarm, one click reset, intelligent electrical system |
2、 Analysis of the core advantages of electro-hydraulic servo system
1)Energy saving and space optimization
a,The intelligent servo system provides energy on demand, reducing power consumption by 30% -50% compared to traditional asynchronous motors and minimizing energy waste.
b,The system has a smaller volume, avoiding the land occupation problem of traditional hydraulic presses with large motors and oil tanks, and is suitable for workshop space optimization.
2)High precision control capability
a,Pressure control: 1 bar accuracy meets the requirements of precision stamping, stretching and other processes such as electronic components, aerospace parts processing.
b,Position control: 0.05mm accuracy ensures precise mold positioning, with a repeat positioning error of ± 0.05mm, suitable for high-precision workpiece production.
c,Pressure stability: within ± 1% error, avoiding workpiece scrap or inconsistent quality caused by pressure fluctuations in traditional equipment.
3)Safety and reliability improvement
a,Infrared grating real-time monitoring of the operating area to prevent personnel from accidentally touching and causing safety accidents.
b,The non negative pressure design of the oil circuit reduces air mixing, reduces hydraulic component wear, oil leakage and other faults, and extends the life of sealing rings, oil pumps and other components.
c,The automatic fault alarm system can quickly locate electrical problems such as sensor failure, motor overload and the one click reset function shortens downtime for maintenance.
4)Process adaptability and flexibility
a,Supporting various modes such as sheet metal stamping, stretching, tensile resistance, precision stamping, etc., suitable for the needs of automotive parts, 3C products, aerospace and other fields.
b,The servo system can flexibly adjust parameters such as pressure curve and stamping speed through programs to meet personalized process customization and reduce mold changing and debugging time.
3、 Industry Applications and Market Feedback
At present, the electro-hydraulic servo system has served many large hydraulic equipment manufacturers and users around the world, and its advantages are particularly prominent in the following scenarios:
a,Automobile manufacturing: used for stretching body coverings, stamping chassis parts, high-precision control to improve component qualification rate.
b,Electronic manufacturing: precision stamping semiconductor packaging molds, lithium battery electrode sheets, ensuring micrometer level dimensional accuracy.
c,Aerospace: Tensile testing and high-strength material forming, pressure stability ensures key component performance.
d,The industry recognizes its comprehensive value of energy saving+high precision+low maintenance and has become the mainstream direction for upgrading hydraulic equipment.
4、 Technical extension: Energy saving principle of servo system
a,The servo motor adjusts its speed and torque in real-time according to the load through vector control technology traditional motors operate at a constant speed:
b,When running at low speed without load, the power consumption drops to 20% -30% of the rated power;
Quickly respond to sudden load changes, avoid energy waste, and further optimize energy efficiency in conjunction with energy storage devices.
c,This on-demand energy supply mode fundamentally solves the energy consumption problem of traditional hydraulic presses pulling small cars with large horses.