CNC Bending Machine Valve Group

The CNC bending machine valve group is the core control component of the hydraulic system of the CNC bending machine (CNC bending machine). It drives the up and down movement of the hydraulic cylinder by adjusting the flow, pressure and direction of the hydraulic oil, thereby controlling the upper and lower molds of the bending machine to complete the bending operation. Compared with traditional bending machines, the CNC bending machine valve group integrates more advanced hydraulic control technology, and can realize automated bending processing through linkage with the CNC system.
The design and function of the CNC bending machine valve group directly affect the working efficiency, processing accuracy, operation convenience and service life of the CNC bending machine. Therefore, the high quality and performance of the valve group are crucial to the overall performance of the CNC bending machine.

Product Features
High-precision control:
The CNC bending machine valve group adopts high-precision flow and pressure control technology to ensure that the hydraulic system can smoothly adjust the oil flow and ensure the accuracy and stability of the bending machine operation.
Intelligent adjustment:
Seamlessly integrated with the CNC system (CNC), supports automated control, and can adjust the pressure, flow and oil flow direction of the hydraulic system according to program instructions to achieve accurate automatic bending.
High efficiency and energy saving:
The valve group is designed with optimization, which can automatically adjust the oil pump output flow according to the actual load, reduce energy consumption and improve work efficiency.
Strong stability:
Made of high-strength and high-wear-resistant materials, it can operate stably for a long time under high-frequency and high-load working conditions, reducing the failure rate.
Multiple safety protections:
Equipped with safety designs such as overflow valve, reverse valve, pressure protection device, etc., to ensure that the hydraulic system will not be overloaded and protect the safety of the hydraulic system and machinery and equipment.
Quick response:
The fast-response reversing valve and adjustable flow control valve can quickly respond to the instructions of the CNC system, reduce equipment adjustment time, and improve production efficiency.
Easy maintenance and adjustment:
The design is easy to inspect and maintain, and various control modules and accessories can be easily replaced to ensure long-term and stable operation of the system.

Main Components
The composition of the CNC bending machine valve group includes but is not limited to the following core components:
Solenoid valve:
It is used to automatically control the flow direction and flow of hydraulic oil, respond to the signals sent by the CNC system, and control the various actions of the hydraulic system.
Pressure control valve:
Used to maintain and control the pressure in the hydraulic system, prevent the system from working under overpressure, and ensure the stability and safety of the hydraulic system.
Flow control valve:
Control the flow of hydraulic oil and adjust the movement speed of the hydraulic cylinder to adjust the working speed of the bending machine.
Directional valve:
Control the flow direction of hydraulic oil, determine the movement direction of the upper and lower molds of the bending machine, and control the lifting and lowering during the bending process.
Safety valve:
When the pressure of the hydraulic system exceeds the set value, the safety valve automatically opens to release the pressure and protect the hydraulic system from damage.
Overflow valve:
Prevents the system pressure from being too high, and can automatically release the pressure when the oil pressure is overloaded to ensure the stable operation of the system.
Electronic control module and sensor:
Connected to the CNC system, automatically receives operation instructions from the CNC system, detects the state of the hydraulic system through sensors, and provides feedback control.

Working Principle
The working principle of the CNC bending machine valve group is based on the basic principle of the hydraulic system. The hydraulic pump provides high-pressure hydraulic oil, controls the flow, pressure and direction of the hydraulic oil through various valves in the valve group, and drives the hydraulic cylinder to complete the working action of the bending machine. The specific process is as follows:
Hydraulic oil supply:
High-pressure hydraulic oil enters the valve group from the hydraulic pump through the pipeline and is supplied to the system.
CNC system instructions:
The CNC system sends signals to the solenoid valve according to the programming instructions, adjusts the flow direction and flow of the hydraulic oil, and controls each valve in the valve group.
Pressure and flow regulation:
The pressure control valve keeps the hydraulic system running within the set pressure range according to the instructions; the flow control valve adjusts the flow of hydraulic oil to control the movement speed of the upper and lower molds of the bending machine.
Hydraulic cylinder drive:
The reversing valve in the valve group controls the flow of hydraulic oil to the hydraulic cylinder according to the instructions of the CNC system, driving the upper and lower molds to complete lifting, contact or retraction.
Automatic safety protection:
The overflow valve and safety valve monitor the system pressure at all times to prevent the system from overloading and protect the hydraulic system and equipment from damage.
Feedback and adjustment:
The CNC system adjusts the valve group in real time through the sensor to feedback the pressure, flow and position of the hydraulic system to ensure that the system is always running in a good state.

Application Fields
CNC bending machine valve groups are widely used in the following fields:
Sheet metal processing:
Suitable for bending metal materials such as stainless steel, aluminum plates, copper plates, and steel plates.
Automobile manufacturing:
Used for bending parts such as automobile bodies, chassis, and frames, especially for mass production.
Aerospace:
Mainly used for high-precision bending of aerospace parts, such as fuselage structures, wing components, etc.
Machinery manufacturing:
Used for bending parts such as shells and frames of various mechanical equipment.
Home appliance manufacturing:
Such as bending of the shells of home appliances such as refrigerators, air conditioners, and washing machines.
Construction industry:
Bending of building materials such as steel structures and aluminum alloys.

Maintenance and Maintenance
The daily maintenance and maintenance of CNC bending machine valve groups are essential to ensure the long-term and stable operation of the equipment:
Regularly check the hydraulic oil: Keep the hydraulic oil clean to prevent impurities in the oil from affecting the operation of the valve group, and replace the hydraulic oil regularly.
Check valves and pipelines: Regularly check the valve group and pipeline connections for leaks or damage to ensure that the hydraulic system is well sealed.
Clean the filter: clean the filter in the hydraulic system to prevent impurities in the oil from clogging the valve group.
Check the seals: regularly check the aging of the seals to ensure that they are intact and prevent hydraulic oil leakage.
Calibrate the pressure and flow control valve: ensure that the pressure and flow control of the hydraulic system are within the working range to improve processing accuracy.