What are the differences between torsion axis CNC bending machine press brake and electro-hydraulic servo bending machine press brake?

What are the differences between torsion axis CNC bending machine press brake and electro-hydraulic servo bending machine press brake?

To some laymen, many professional terms in the industry are simply bizarre and confusing. However, in fact, for some people engaged in industry, sometimes, they are also confused about the difference between some professional equipment. Therefore, we have specially sorted out the differences between the torsion axis CNC bending machine press brake and the electro-hydraulic servo bending machine press brake for you today!

Torsional axis CNC bending machine press brake:

1. Bending accuracy In the same program, only the first step can be bent accurately.
2. The slider speed also has fast down and slow down functions, but it is not smooth.
3. Back gauge accuracy AC motor positioning, the accuracy difference is > 0.5mm.
4. The back gauge speed is 100mm/s.
5. Numerical control system digital programming (angle programming), no other functions.
6. Angle calibration Manual calibration, most of which adjust the inclined block in the mold clamping, there is no adjustment standard.
7. Oil cylinder The oil cylinder purchased from a local small factory has a short life, frequent failures and frequent oil leakage.

Electro-hydraulic servo CNC bending machine press brake:

1. Bending accuracy In the same program, each step can be accurately bent.
2. The slider speed has fast down and slow down functions, which can greatly improve production efficiency.
3. Back gauge accuracy Servo motor is precisely positioned, with an accuracy of up to 0.02mm.
4. The back gauge speed is 300mm/s.
5. Numerical control system Angle programming (graphical programming), automatic calculation of bending pressure, automatic deflection compensation, multi-point numerical control positioning of back gauge.
6. Angle calibration The CNC system is intelligently calibrated, simple and fast.
7. Oil cylinder The domestic first-line brand oil cylinder has long service life, wear resistance and very little oil leakage.

The difference:

1. There is a big difference between the torsion axis CNC bending machine press brakeand the electro-hydraulic servo bending machine press brake. The former uses a torsion axis to connect the left and right swing rods, etc., to form a torsion axis forced synchronization mechanism to keep the up and down movements of the oil cylinders on both sides synchronized; then The other is to use hydraulic control systems such as proportional electro-hydraulic servo valves and grating scales to form closed-loop control. That is to say, the torsion axis synchronous bending machine press brakeis a mechanical synchronization method, and the electro-hydraulic synchronization is a servo proportional valve synchronization method.
2. In contrast, the machining accuracy of the torsion shaft is relatively low, so it is completely unable to meet the accuracy requirements of the electro-hydraulic servo proportional valve.
3. Even if the torsion axis synchronous bending machine press brakeis forcibly converted into an electro-hydraulic CNC bending machine press brake, the effect is still lacking compared with the torsion axis servo CNC bending machine press brake.
4. And from the most practical cost point of view, the cost of retrofitting the electro-hydraulic servo to the torsion axis bending machine press brakeis very large, and it is necessary to add proportional servo valves, grating rulers, electro-hydraulic CNC bending machine press brakesystems, and possibly add precision back gauges; At the same time, it is necessary to remove the balance shaft, hydraulic valve and other components of the torsion shaft bending machine press brake, which not only requires a lot of work, but also costs a lot.

Conclusion, the torsion axis CNC bending machine press brake is not suitable for retrofitting the electro-hydraulic CNC bending machine press brake. If you want to obtain the ideal bending effect, you must pay attention to the matching when selecting the machine model.

torsion bar cnc press brake machine. you can see the torison bar in the machine. and electric hydraulic press brake no this devices.