Characteristics of linear rolling guide vice cannot not know

Do not know the characteristics of linear rolling guide vice - 2019 08 - Linear rolling guide vice is developed in the late 1970 s, according to the basic principle of rolling bearing gradually improved and become a unique mechanical properties of rolling bearing, has the advantages of simple structure, small static friction factor, high positioning accuracy and precision as well as good stability, has become one of the key basic parts of precision CNC equipment. Compared with the applied in nc machine tool slide guide and so on, linear rolling guide vice has excellent characteristics and excellent performance. 1 friction characteristics of linear rolling guide vice has outstanding advantages in terms of friction characteristics, the frictional resistance than sliding guide rail, general friction factor & mu; = 0. 002-0. 004, about 1/50 of the slide guide, starting friction and kinetic friction approximately equal. The speed change, & mu; Value is stable, fast, flexible, and stable movement, thus can realize high speed movement, improved the production efficiency. 2 movement characteristics as a result of the linear rolling guide vice friction small, so no vibrate when starting, no crawling phenomenon under the low speed movement. When applying preload lotus, can eliminate the gap, improve the rigidity. In addition, the function of the heart, install base error compensation, so the whole motion precision is high, so is suitable for high precision, high performance of mechanical products. In addition, due to the linear rolling guide vice error homogenization function has the very good, so also known as' magic guide ', 'artifact guide rail. The movement of the linear rolling guide with ball or roller rolling, guide vice friction resistance is small, the difference between the dynamic and static friction force is small, the follow-up sex is extremely good, not easily get crawled when low speed, the driving signal with very short time interval of mechanical lag, is beneficial to improve the response speed of the CNC system and sensitivity, and can achieve high localization accuracy. Linear rolling guide vice as a rolling features with high positioning accuracy, suitable for frequent starting or reversing the moving parts, machine tool positioning accuracy can be set to amd m level. At the same time can be appropriately increased, according to their needs, guide of pre-load, to ensure that the ball or roller sliding occurs with smooth movement, reduces the movement of the impact and vibration. Linear rolling guide vice also adapt to high speed linear motion, the instantaneous speed about 10 times greater than that of the slide guide. 3 life characteristics in the slide guide, most of the energy in the form of wear can consume, so wear fast, hard to maintain high precision for a long time. Linear rolling guide, on the other hand, small friction, less wear and tear, can keep high precision for a long time. In addition, due to the using multiple linear rolling guide roller as a support, at the same time race can more easily obtain high machining accuracy and high surface hardness, therefore linear rolling guide has a longer working life. For on the surface of the slide guide fluid lubrication, because of the oil film floating, the motion precision error is inevitable. In most cases, the fluid lubrication is limited to border areas, directly produced by metal contact and friction is unavoidable, in this kind of friction, a large amount of energy wasted by friction loss. , by contrast, rolling contact, less energy consumption because of friction on the surface of the rolling friction loss is less, so can make the long-term high precision linear rolling guide system state. At the same time, due to the use of lubricating oil is very few, which makes the machine tool lubrication system design and use of maintenance has become very easy. 4 load-bearing characteristics linear rolling guide vice has good bearing performance, can bear the force and moment loads of different directions, such as under the force from top to bottom, left and right, and the deflection of pitching moment, torque and rotational torque, therefore, has the very good load adaptability. During design and manufacture of proper preload lotus can increase the damping, improve the vibration resistance, and can eliminate the phenomenon of high frequency vibration. And slide guide in the direction parallel to the interface can withstand the lateral load is small, easy to cause bad precision machine tool operation. 5 driving characteristics in driving power, only about 1/10 of the general machinery. Adopts linear rolling guide machine because of friction resistance is small, can make the required power supply and power transmission mechanism miniaturization, driving torque, reduce greatly, make the machine required power by 80%, energy-saving effect is obvious. It can realize high speed machine tool movement, machine efficiency can be increased by 20% ~ 30%. 6 interchangeable features simplified mechanical structure design and manufacturing. Use guide in pairs, have 'error homogenization effect, thus reducing components ( Guide rail mounting surface) Machining precision requirement, decrease the cost of basic pieces of machinery manufacturing and machining difficulty. Traditional sliding guide rail must be carried out on the track surface scrape of trouble and time consuming, and once the machine precision is bad, have to shave. Rolling guide are interchangeable, as long as the replacement of sliding block guide rail or the linear rolling guide, high precision machine tool can be re-created. 7 economic characteristics of linear rolling guide vice because of the small friction, less wear, lubrication, repair and maintenance is convenient, so the maintenance cost is low. In addition, the linear rolling guide vice also has the very good interchangeability, easy to form the standardization, seriation, and batch production by professional manufacturers, the user use is very convenient, so as to shorten the design time. In addition, fuel-efficient is another remarkable characteristic of linear rolling guide vice. Japan THK company had to use the slide guide of single shaft surface grinding machine and using three axis of rolling guide surface grinding machine for comparing the performance test, the result is power slide guide to the use of the linear rolling guide 16. Seven times. In view of the linear rolling guide has many outstanding advantages, and therefore is widely used in mechanical industry, all kinds of CNC machine tools, precision worktable, industrial robots, medical equipment, testing instruments, light industrial machinery and sports has embodied (in See image below) 。 （ Source: mechanic machine world)