In the continuous development of modern manufacturing industry, stamping technology, as an important part of metal processing, always plays a pivotal role. Among them, pneumatic press has become an indispensable equipment in the production line of many enterprises by virtue of its advantages of high efficiency, energy saving, precision and safety.
pneumatic press is a compressed air as a power source of stamping machine tools, its core structure includes:
pneumatic system: composed of air compressors, tanks, cylinders, etc., used to generate and transfer power;
control system: through the solenoid valve, PLC, etc. to achieve accurate control of stamping action;
workbench and molds: the diameter of the bearer and the processing of the material;
safety and protection and auxiliary devices: including emergency stop buttons, photoelectric protector, overloading, and so on. Button, photoelectric protector, overload protection and so on.
In the working process, compressed air through the cylinder to promote the piston, drive the punch press slider up and down movement, so that the mold on the workpiece stamping molding. Compared with traditional mechanical press, pneumatic press has faster response, lower energy consumption, less noise and higher precision.
(1) Stamping and forming: Pneumatic press has the widest application field, it can be used for stamping and forming sheet metal parts, surface forming, such as car body parts, appliance shells, etc., which need to be formed in large quantities by pneumatic press with molds.
(2) Cutting processing: pneumatic press can be used for material cutting processing, such as sheet metal, stainless steel, aluminum alloy, etc., cutting speed, high efficiency and high precision.
(3) Molding processing: pneumatic press can be used for various shapes of molding processing, such as stretching, bending, drawing, pleating and other processing.
(4) Punching: Pneumatic punching machine can carry out various caliber punching, which needs to be used for round hole, square hole, shaped hole and so on.
- Compressed air (0.6-0.8MPa) pushes the cylinder piston, driving the slider up and down, and the stroke speed is adjustable (20-120 times/minute).
- Compared with hydraulic press, energy consumption is reduced by 40% (according to the report of International Mechanical Engineering Society 2023).
- Adopt solenoid valve and PLC linkage control, repeat positioning accuracy ±0.02mm.
- Emergency braking response time <0.1 seconds, higher safety.
- No gear transmission mechanism, reduce mechanical wear and tear, life expectancy of up to 10 years or more (refer to Taiwan Jinfeng Machinery Technical White Paper).
-Efficient and energy-saving: Adopting pneumatic transmission, it has faster response speed and higher transmission efficiency, with high capacity utilization rate.
-Precision and stability: Due to the smoothness of pneumatic transmission, pneumatic presses have high precision and stability in the stamping process, and can meet the processing needs of complex workpieces.
-Simple structure: the structure of pneumatic press is relatively simple and easy to maintain, which reduces the operation cost of enterprises.
-High safety: pneumatic press is equipped with perfect safety protection devices, such as overload protection, emergency stop, etc., to ensure the safety of operators.
(1) Automobile manufacturing industry: It is used for stamping sheet metal parts of the body (such as doors and hoods), with an accuracy of ±0.1mm (Source: Modern Stamping Technology Manual 2022 Edition), and the noise is lower than 75 decibels, which is superior to that of mechanical punching machines.
(2) Processing of electronic components: precision punching of circuit board pins or miniature connectors, the minimum punching aperture up to 0.5mm.
(3) Hardware production: batch processing of screws, spacers and other standard parts, single-machine capacity of up to 2,000 times / minute (such as Japan's AIDA PH series models).
(4) Home appliance industry: refrigerator panels, air conditioning brackets and other shaped parts molding, pressure range is usually 5-200 tons.
(5) New energy field: lithium battery pole piece punching and cutting, the explosion-proof design of pneumatic punching machine can avoid the risk of sparks.
In general, pneumatic punching machine occupies an important position in industrial production by virtue of its high efficiency, precision, energy saving and environmental protection advantages. With the continuous development of science and technology, pneumatic press will play a greater role in the future, providing more high-quality stamping products for various fields.