| Pneumatic technology application is the expansion of the industrial development of pneumatic logo. Pneumatic components application is for two aspects: maintenance and supporting. The past domestic pneumatic components sales to used for maintenance, in recent years, mainly match directly for the share of the sales of increases year by year. Domestic pneumatic components, the application of tens of millions of dollars from the value of the metallurgical equipment to only 1 ~ 200 yuan chair. Railway locomotive bifurcation, turn the wheel/rail lubrication, train braking, street cleaning, special shop in hoisting equipment, the military chief, etc are put to use specially developed for domestic pneumatic components. This shows that pneumatic technology has "penetration" people from all walks of life, and is expanding increasingly. China's pneumatic industrial although achieved certain scale and technology level, but compared with the international advanced level, the gap is great. Pneumatic products value in China accounts for only 1.3% of total world, only 1/21 of the for the United States, Japan, 1/15 of 1/8 of Germany. And this country with a population of more than is not compatible. Look from breed, a Japanese company has 6500 varieties, only 1/5 of it in our country. Product performance and quality level difference is very big also. The pneumatic technology is more and more more applied in various sectors of automatic assembly and automatic processing small, special goods equipment, the original traditional pneumatic components performance are improving, and at the same time they have developed to adapt to the requirements of the market new products, make the variety of pneumatic components increase their development trend mainly in the following aspects: smaller, lighter weight, lower power consumption. In the electronic components, drugs and other manufacturing industries, due to special volume is small, certainly will limit the size of the pneumatic components, miniaturization, light-duty is the first pneumatic components development direction. Abroad, has developed only thumb size, effective cross-sectional area of 0.2 was the super-mini solenoid valves. Develop the appearance of small size and large flow of the components is better. Therefore, the same shape of the size of the valve, the flow has increased by 2 to 3.3 times. There is a series of small electromagnetic valve, the valve body only 10 mm wide, effective area was up to 5; 15 mm wide, effective area of 10 was the and so on. Foreign electromagnetic valve power consumption has reached 0.5 W, will be further reduced to adapt and microelectronics combined. Air treatment combinations pieces, mostly used at home and abroad of block block structure, not only compact size, and combination, maintenance is very convenient. The implementation of components of the increase location accuracy, increase stiffness, the piston rod be converted, and use more convenient. In order to improve the accuracy of the cylinder, and with brake institutions and servo system, the application of the cylinder is more and more common. The cylinder with servo system, even if the gas supply pressure and negative load change, still can obtain positioning accuracy of + /-0.1 mm. In the international exhibition, all kinds of the single section cylinder and the cylinder piston rod very much, because this kind of cylinder piston rod won't be converted, and application in the host, without additional guidance device can keep a certain precision. In addition, it also developed a lot of steering mechanism with the cylinder and the cylinder sliding components, for example has two root of the stem guide cylinder, appling dual cylinder cylinder piston rod. Cylinder tube shape has not limited to circle, square, but MiZiXing or other shape, in profile on open guide gibs, sensors and switches installation chamfer, let users to install use more convenient. Muti_function change, compound. To help users, to adapt to the needs of the market development of the various kinds of pneumatic components combined with only control device of small pneumatic system. As for mobile small article of components, is the guide will take two cylinder separately according to the X axis and Z axis combination and into. This component can move 3 kg weight, equipped with electromagnetic valve, program controller, compact structure, small occupancy space, the trip can be adjusted. And on the material, such as a module, there are seven different function module form, can complete precision assembly line, filling the homework, can according to operation content will be different combinations module. Still have a kind of manipulator is small by appearance and can change the swing of swing Angle with the combination of cylinder chuck a, with a number of head chuck optional. And electronic technology, combined with the use of sensor, pneumatic components intelligent. Take the switch has commonly used in cylinder, switch volume will be more small, higher performance, can embed cylinder block; Some still take double color display can indicate the position error, make the system more reliable. Instead of flowmeter with sensors, the pressure gauge, can automatically control the flow of compressed air, pressure, energy saving and ensure the device can be normal operation. Pneumatic servo positioning system existing products to enter the market. The system USES three pneumatic servo valve five links, will be scheduled targeted and position sensor detection data comparison, the implementation of the negative feedback control. Cylinder maximum speed up to 2 m/s, travel 300 mm, the system positioning accuracy + /-0.1 mm. Japan successfully trial-produced a new type of intelligent electromagnetic valve, the valve is equipped with a sensor logic circuit, is pneumatic components and photoelectron technology union product. It can directly receive sensor signal, as the signal meets specified conditions, need not through the external controller, can make the action on its own to reach the control purpose. It has been used in the object of the conveyor belt, can identify handling the size of the object, make big direct send, small tap. |
