Sheet Metal Flexible Bending Center

The fuselage structure has undergone precise finite element stress analysis and is designed based on scientific mechanical principles. The main board and internal rib plate structures of the fuselage are designed reasonably, greatly ensuring the overall stability of the fuselage under high tonnage pressure.

The body adopts high-precision temperature controlled tempering furnace for tempering heat treatment. The tempering heat treatment process is carried out according to the temperature curve corresponding to the steel plate material, and then subjected to full frequency vibration aging treatment for a sufficient time, completely releasing the welding internal stress, ensuring that long-term use is not prone to mechanical deformation, thereby ensuring the stability of the equipment’s comprehensive accuracy.

The installation surfaces and holes of the body guide rail, screw, positioning and rotating mechanism, transmission mechanism, etc. are completed through one-time clamping and processing by large CNC machining equipment, ensuring the flatness, parallelism, verticality, and assembly accuracy of each processing surface, thereby improving the service life of the equipment.

For products of different shapes and sizes, we design different tooling fixtures and use high-precision multi-axis machining centers to process them, ensuring consistent accuracy before and after clamping during use. For welded parts, regardless of size, we use CO2 shielded welding throughout the entire welding process, employing a full beveling welding technique at the weld joints to ensure the strength and aesthetic appearance of the welded parts. We precisely measure and inspect every component of the entire machine, strictly controlling the machining quality of each assembled part to ensure that the assembly precision of the entire machine meets high-precision machine tool standards.

 The bending center we have developed adopts a relatively advanced fully electric servo closed-loop system. This system now has a total of 13 main axes(the number of axes can be increased or decreased as needed), which can achieve multi axis linkage. The bending action is smooth, and the mechanical action coordination is high. It can easily achieve various complex bending action combinations, and the overall work efficiency and bending accuracy are leading in China. The daily maintenance workload is very low, and it is equipped with a self-lubricating system. When the oil level is lower than the specified value, the system automatically warns, and only needs to add lubrication grease according to the program prompts.

Multiple clamping methods can be selected based on the size and shape of the parts. A movement method that uses vacuum negative pressure suction cups imported from Germany to clamp workpieces for moving and rotation feeding, suitable for small size plates with no holes on the surface. This method has low replacement cost, long service life, stable clamping, and high accuracy in the later stage; Another movement method that uses a pressure arm to clamp the workpiece and rotate the feeding material is suitable for larger plates with holes or protrusions on the surface. This method has a longer service life, more stable clamping, and higher accuracy.

By using a high-precision work rotation platform, it can rotate at any angle within a safety zone of ＞360°, support multi lateral bending at any angle, and simplify loading and unloading operations, greatly improving the safaty and comfort of operators.

If there is a foreign object in the middle of the upper and lower pressing knives, or if the workpieces is not qualified, causing bias load, the system will issue a sound and light warning and immediately stop running if the bias load value exceeds the allowable range, effectively avoiding waste of the workpiece and avoiding equipment damage.

When the sheet deviates from the center of the tool for edge folding, the system can automatically adjust the motor output torque, achieving synchronization between the two motors, ensuring the edge folding effect and protecting the machine tool positioning slide form damage.

In fact, if the thickness of the material exceeds the set thickness range, the system will generate an audible and visual warning and immediately stop operation, effectively avoiding workpiece waste and equipment damage.

Easy to learn, easy to operate, simualting and displaying the bending shape of the edited program is correct and reasonble, avoding workpiece waste, and effectively protecting the equipment.

Dowell CNC equipment has collaborated with leading CNC system enterprise to develop the first intelligent bending dedicated sysetm in China. This system runs on Microsoft’s official legitimate Windows CE opreating system, which is a specialized Windows operating system developed by Microsoft for CNC special machines. Compared to other companies’ assembled industrial control computers, it has advantages such as stability, efficiency, fast response, no jamming, and full touch control without the need for a keyboard or mouse. This intelligent bending system is based on traditional CNC machine tool control commands and has customized a unique and comprehensive command control protocol(bus communication), making control more stable and real-time.

Dowell’s intelligent flexible Metal sheet bending center is a high-tech product developed and manufactured to improve production efficiency, reduce operator workload, and enhance product quality in the sheet metal processing industry. Compared to traditional bending machines, this equipment has the following features:

1. High speed, high efficiency, and lower energy consumption.
2. Batch processing of workpieces, high product consistency.
3. Simple daily maintenance and lower maintenance costs.
4. High degree of automation, simple operation, and lower requirements for manual labor and professional skills.
5. No need for additional special bending dies for special products; complex shapes can be formed in one step (e.g., top and bottom bends, non-right angle bends, arcs, polygonal bends, pressed edges, etc.).
6. No need to change the top and bottom bending cutters like ordinary bending machines, reducing labor intensity.
7. Applicable to flat plate bending and forming of various materials.
8. Supports multiple loading and unloading methods (e.g., manual loading and unloading, gantry robot loading and unloading, robotic arm loading and unloading, etc.).
9. High scalability; can be configured with robotic arm loading and unloading according to production needs, and can also be integrated into fully automated sheet metal processing production lines.
10. Adopts a closed-loop control system with dual servo motors to ensure bending error within ±0.02mm.