What are the advantages of the electro-hydraulic servo pump-controlled CNC bending machine system?

The pump-controlled servo CNC bending machine includes a power source connected with the CNC system and a control valve group. It is characterized in that the power source includes a servo motor and a two-way quantitative pump connected with the servo motor, and an oil tank; the control valve group includes a shuttle valve and regulates the system pressure The pressure valve and unloading valve also include one-way valve, reversing valve, back pressure valve, poppet valve, safety valve and filling valve; the inlet and outlet of the two-way quantitative pump are controlled by the shuttle valve, and the positive outlet is Directly connect to the upper cavity of the oil cylinder, and the reverse oil outlet is connected to the lower cavity of the oil cylinder via the poppet valve and back pressure valve; the oil inlet and outlet of the bidirectional quantitative pump are connected to the oil tank via the check valve, reversing valve, and charging valve; the charging valve is connected Control valve; a safety valve is connected between the oil tank and the lower cavity of the oil cylinder. It has the characteristics of high efficiency, energy saving and high synchronization accuracy.

What are the advantages of the electro-hydraulic servo pump-controlled CNC bending machine system?

CNC bending machine

Anhui Yongya feels the advantages of the electro-hydraulic servo pump control hybrid system:

1. Pump control technology replaces conventional valve control technology, eliminating throttling loss, no overflow loss, and significant energy saving;

2, the servo motor can be significantly overloaded in a short time, and the actual installed power is only 50% of the theoretical installed power

3. The volume of the fuel tank is reduced by 75%, reducing the amount of hydraulic oil used

4. The heat balance temperature is low, no cooling device is needed, and the service life of hydraulic components is prolonged

5. The noise is significantly reduced in idle, fast-down, pressure-holding, and return states, which improves the working environment

6. ​​Servo motor has a faster braking speed than ordinary motors, and the pressure and flow cut off faster in emergency situations

7, the sensitivity of oil particles is reduced from NS7 to NS9

8. The temperature sensitivity decreases, and the working temperature is from -10℃–60℃, and widened to -10℃–80℃

9, the speed matching is very high, the same valve group, with 6, 8, 10 three specifications of pumps can cover 30-300 tons of bending machines

10, the maximum speed of fast down and return under certain conditions can reach 200mm/s

11, the working speed can reach 20mm/s