bellows
In addition to protecting machine tools and their guideways and parts, machine tool shield should also play a role in improving the aesthetic effect of machine tools. It can protect the safety of machine tool operators and protect the surface and guide rail of machine tool from the damage and erosion of iron chips, sundries and chemicals, thus prolonging the service life of machine tools, especially precision CNC machine tools.
Types of machine tool shields:
Machine tool shield can be divided into many kinds. There are two kinds of shield commonly used on machine tool guideways: organ type machine tool guideway shield and steel plate machine tool guideway shield.
The protective cover of organ machine tool can be divided into flexible organ protective cover and armored organ protective cover.
Steel plate shield can also be divided into ordinary steel plate and stainless steel plate shield, the thickness of which is generally 1.5MM-4MM cold steel plate or stainless steel plate formed by cold pressing through shear bending machine.
The protective cover of the screw used on the screw includes round, square and polygon, which can be divided into steel wire support and suture according to different technology. The connection mode of the collar can be divided into flange connection and common connection, and the inner steel ring can be divided into common clamping process and special welding process.
The curtain-type protective cover has the effect of automatic expansion because of its strong spring axle. It is characterized by low noise and flexible installation position. It can be divided into box type and bracket type. The protective material can be divided into three kinds of protective cloth and stainless steel strip.
Characteristic of organ shield:
Commonly used shapes are: 1-shaped, 7-shaped, U-shaped, square, circular five shapes.
Manufacturing technology of organ shield: cutting - fixing - heat bonding - fixing - testing. [Metal Processing Wechat, good content, worthy of attention! ]
Flexible organ shield features:
Flexible organ shield, commonly known as leather tiger. External use of nylon cloth, with barley cardboard or PVC board support, the edge of the stainless steel plate clamping. This kind of shield has the advantages of small compression and long travel. It is oil-resistant, corrosion-resistant, hard material collision does not deform, and has the characteristics of long life, good sealing, smooth walking, strong and durable, which brings perfect effect to the use of machine tools. The speed of bellows can reach 200 m/min.
Its shape rules, beautiful appearance, while providing practical protection for the machine tool, but also for the machine tool as a whole to add more visual aesthetic, so that the value of the machine tool has been enhanced.
In addition, flexible accordion shield is more and more widely used in the fields of medicine, measurement, automatic control and food technology. These industries require the shield to be dust-proof and non-toxic to food.
Flexible organ shield is more and more widely used in the lifting platform of automobile assembly line.
One of its basic components is that each folder is equipped with a supporting and stabilizing PVC skeleton, which can be closely linked with the external folding materials through different processing methods.
· One is thermal bonding. At a certain temperature, with the help of special flux, the inner PVC skeleton can be firmly bonded with the outer fold. If the shield is used in medium temperature environment, this method can be chosen. This kind of thermal bonding shield does not need to be maintained at all, and is waterproof, dustproof, oil-resistant and acid-resistant.
· The other is sewing method, which is used in high temperature working environment. Special stitching is used to make it durable even under extreme load. The PVC skeleton is sewed and fixed on each fold to reinforce the stable shield.
All flexible organ shields can be used horizontally, vertically or horizontally to ensure smooth operation and no noise. By using raw materials with small thickness, it can be compressed to meet the requirements of narrow workspace of modern machinery. (Its stroke compression ratio can reach 10:1)
Characteristic of steel plate shield:
Steel telescopic guideway shield is the traditional form of machine tool protection. Steel telescopic guideway shield is widely used in the field of machine tool protection. It plays an effective protective role in preventing chips and other impurities from entering. It can also effectively reduce the infiltration of coolant through certain structural measures and appropriate scrapers.
The steel plate shield has the following characteristics:
1. Strong and durable, smooth operation, low noise, beautiful appearance.
2. Suitable for high-speed operation of machine tool guide protection, both smooth and vibration-free, no noise.
3. The steel shield device not only protects the service life of the shield plate, but also ensures the precision of modern high-tech numerical control machine tools.
4. Each section of the steel plate shield is pulled apart parallel at the same time, and retracted parallel at the same time, so that it can run freely.
5. The steel plate shield will not make the guard plate disjointed and has no impact noise. It is beautiful and improves the service life of the guard plate.
6. On the basis of the original sealant strip, a stainless steel cover was added to prevent iron scraps from burning at high temperature and scraping the strip into the rail surface to pull the guide rail.
7. Each shield can be synchronized, completely different from the general shield pulling one by one, so the noise is very low.
8. The steel plate shield device can increase the moving speed of the shield to 120 m/min and withstand higher G value.
technical data
Steel telescopic guideway shield is formed by cold pressing of high quality 2mm-3mm thick steel plate, and stainless steel plate can also be customized according to requirements. Special surface polishing will increase its value.
The number of nodes of steel telescopic guide cover is very important to its proportion, weight and operation characteristics. Each section should be as long as possible to reduce the number of sections.