A bending machine is an indispensable piece of equipment in metal forming tools. It processes metal materials using mechanical force, hydraulic pressure, or electric power to induce bending deformation, thereby meeting the diverse demands of various industries for metal products. The following sections will provide an in-depth analysis of the working principles, classification, and application areas of bending machines.
A bending machine primarily consists of a machine body, hydraulic system, CNC system, workbench, upper die, and lower die. Its core functionality lies in the coordination between the upper and lower dies, which achieve the bending and forming of metal sheets through their closing or opening. Based on different control methods, bending machines are categorised into manual bending machines, hydraulic bending machines, and CNC bending machines. Manual bending machines are suitable for simple processing, hydraulic bending machines have greater power and are suitable for thicker sheets, while CNC bending machines, with their high precision and automation advantages, are more widely used in the processing of complex parts.
When it comes to bending precision, the CNC system can precisely control parameters such as bending angle and position according to requirements. It acts as the ‘brain’ of the bending machine, enabling continuous multi-step processing after programming the corresponding parameters. This ‘intelligence’ enhances processing efficiency and precision, making it particularly suitable for producing parts that require multiple bends.
Based on their working principles, bending machines are categorised as follows:
Mechanical bending machines are a type of bending machine that uses the lever principle. They can adjust the bending angle by modifying components such as the frame, top rod, and bottom rod. They have a simple structure and are cost-effective, making them widely used in the manufacturing of small and medium-sized tableware, furniture, aerospace components, and electrical appliances.
Hydraulic bending machines are machines that operate based on the principle of hydraulic cylinders, offering high working force and precision. They are suitable for processing medium to large-sized steel bending, dump trucks, light mining vehicles, and various other steel or special-shaped workpieces. Due to their compact structure, low energy consumption, and high forming precision, they are widely applied.
A CNC bending machine is a type of bending machine that uses program control and electric drive, offering the advantages of high precision and efficiency, and can be operated and produced automatically. CNC bending machines are suitable for the manufacturing and processing of various complex-shaped sheets or special-shaped tubes.
The working process of a bending machine is primarily divided into the following steps:
Before bending sheet metal or tubes, they must be cut, joined, and processed to achieve the desired shape. During cutting and joining, relevant tools and equipment such as cutting machines, welding equipment, and machining centres are required.
The sheet metal or tubes to be processed are clamped onto the bending machine's workbench to ensure stability and accuracy.
Based on the required bending shape and processing material, select the appropriate die and adjust it as needed.
According to the set parameters, operate the bending machine's control system to activate the workbench and upper/lower die forces, thereby bending the sheet metal or tubing.
After processing is complete, remove the bent sheet metal or tubing from the workbench and perform subsequent post-processing work.
Bending machines play a subtle yet crucial role across various industrial sectors. For instance, in automobile manufacturing, they are used to produce complex components such as car doors and chassis frames. In the appliance industry, large components like washing machine housings and refrigerator door panels require bending machines for processing. Even in the creation of certain artworks, the precise control and multi-angle processing capabilities of bending machines play an important role.
In summary, as an important metal material processing equipment, the application areas and importance of bending machines are continuously expanding. In the future, with the continuous advancement of technology and the diversification of market demands, bending machines will play an irreplaceable role in more high-tech fields and continue to be a driving force for the development of manufacturing.
If you are interested in bending machines, please contact us, and we will recommend suitable machines and provide quotes.
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