The new rail system enables the machine to obtain a high-speed feed rate, which is a characteristic of linear guide rail slides with the same spindle speed. The linear guide rail, like the plan rail, has two basic elements: one is used as a guide for stationary elements, and the other is a moving element. In order to ensure the accuracy of the machine tool, a small amount of scraping of the bed or vertical rod is indispensable, and under normal circumstances, the installation is very simple. There is no need for intermediate media between the moving elements and the fixed moving elements of the linear guide rail slide table, and the rolling steel ball, because the rolling steel ball is integrated into high-speed movement, low friction resistance, high accuracy, consider the working standards of moving components, such as the tool table of the machine tool, the pallet plate, etc. If the running time is too long, the steel ball will gradually be damaged, and the preload acting on the steel ball will gradually weaken, resulting in a decrease in the movement accuracy of the machine tool running components. If the starting accuracy is to be maintained, the guide rail support frame must be dismantled, or even the guide rail must be dismantled, if the guide rail system has an existing preload effect, the system accuracy is missing, and the only type is to disassemble and replace the rolling element.

The linear roller guide rail linear rolling to guide rail system is a composition of a plan guide rail and a linear rolling guide rail, which is installed on the parallel plane guide rail with rollers, and uses rolling instead of steel balls to bear the load-bearing machine tool. The advantage is that the contact area is large, the load-bearing load is large, and the accuracy is high, from the end of the bed, the support frame and rollers are placed on the top surface and side of the plan guide rail, so as to get high precision, between the machine, the running components of the bed and the inside of the stationary support, a wedge plate is set to make the pre-loaded load act on the side of the support frame. The principle of cherry plate is similar to that of inclined iron, the net weight of the running member acts on the top surface of the support frame, because the preload acting on the guide rail system is adjustable, so the damage of the cherry plate is compensated, this characteristic is generally used in small and medium-sized or large and medium-sized machine tools, because it is sensitive to CNC instructions, bears large loads, linear roller guide rail system can withstand high-speed operation than traditional plane guide machines, improve the characteristics of machine tools, and inlaid steel guide rails

The most common type of guide rail on machine tools is the steel rail, which has been used for a long time. The steel-inlaid guide rail is a fixed immovable element of the guide rail system, its cross-section is a rectangular frame, it can be installed horizontally on the body of the machine tool bed, and can also be built with the bed, each is called the steel inlaid or body, the steel-inlaid guide rail is made of steel, hardened and cut, the strength is above 60 degrees Rockwell hardness, the steel guide rail is pasted on the machine tool bed or scraped vertical rod on the surface layer to ensure that the guide rail achieves the best flatness, this type, maintenance and disassembly are convenient and simple, It is very popular with maintenance staff. Linear guide rail slide

The development trend of traditional guide rails is mainly manifested in the type of sliding elements and guide rails, the characteristics of sliding guide rails are that the medium is applied between the guide rails and sliding parts, and the different types depend on the different media. Hydraulic press is commonly used in many guide rail systems, hydrostatic guide rail is one of them, wave pressure oil under the action of working pressure, into the groove of the sliding element, between the guide rail and the sliding element, oil slick is generated between the guide rail and the sliding element, separating the guide rail and the moving element, so as to greatly reduce the sliding slag production force of the moving element. The hydrostatic guide rail is extremely reasonable for large loads, and has a compensatory effect on the axial force load, such as: a large and medium-sized sand die box in the production and processing, just to the end of the machine tool travel arrangement, the load guide rail can expand the steam pressure, so that the guide rail accurately maintains the horizontal load, some horizontal CNC boring machines apply this kind of technology to make up for the decline of spindle speed during deep hole machining.

Another type of guide rail that uses oil as a medium is the dynamic pressure guide rail, the difference between the dynamic pressure guide rail and the static pressure guide rail is that the oil does not work under pressure, it uses the viscosity of the oil to prevent direct contact between the moving elements and the guide rail, and the advantage is to save the hydraulic pump. Air can also be used to move the medium between the elements and the guide rail, it also has two types, pneumatic hydrostatic guide rail and pneumatic dynamic pressure guide rail, the principle is the same as the hydraulic guide rail