What is the principle of the HIIWN linear motion guide?

HIIWN linear motion guide can be understood as a kind of rolling guide, is made of steel balls between the slider and guide infinite rolling cycle, so that the load platform along with the guide easily linear motion with high precision, and the coefficient of friction is reduced to the usual traditional sliding guide of one-fiftieth, can easily achieve high positioning accuracy. Slider and guide between the end system unit design, so that the HIIWN linear motion guide at the same time bear the load in all directions, such as up and down, the patented reflow system, and simplified structure design to make the HIIWN linear motion guide have a smoother and lower noise movement. Next is the principle of the HIIWN linear motion guide is introduced.

Here is the content list:

Structure principle

Working principle

Structure principle

The slider transforms the motion from a curve to a straight line. The new guideway system enables the machine to get fast feed speed, and fast feed is the characteristic of the HIIWN linear motion guideway under the same spindle speed. HIIWN linear motion guide rail and plane guide rail, there are two basic components; one is a guide for the fixed elements, the other is a moving element. Since the HIIWN linear motion guide is a standard component, the machine tool manufacturer, the only thing to do is to process a plane for mounting the guide and adjust the parallelism of the guide. Of course, to ensure the accuracy of the machine, the bed, or column a small amount of scraping is essential, in most cases, the installation is relatively simple. As a guide for the hardened steel guide, after fine grinding placed on the installation plane. Compared with the plane guide, the geometry of the cross-section of the HIIWN linear motion guide, more complex than the plane guide, the reason for the complexity is because the guide needs to be processed grooves to facilitate the movement of sliding elements, the shape, and several grooves, depending on the function to be completed by the machine tool.

HIIWN linear motion guideway system of fixed elements (guide) of the basic function as bearing rings, mounting steel ball bracket, the shape of the "v" shape. The bracket wraps around the top and both sides of the guide rail. To support the working parts of the machine, a set of HIIWN linear motion guides has at least four brackets. For supporting large working parts, the number of brackets can be more than four.

Working principle

When the working parts of the machine move, the steel balls circulate in the grooves of the brackets, spreading the wear of the brackets to the individual balls, thus extending the service life of the HIIWN linear motion guide. To eliminate the gap between the bracket and the guideway, preload can improve the stability of the guideway system, preload is obtained. Is installed between the guide and bracket oversize steel ball. Steel ball diameter tolerance of ± 20 microns, to 0.5 microns as an increment, the steel ball screening classification, were installed on the guide, the size of the preload, depending on the force acting on the steel ball. If the force acting on the steel ball is too large, and withstands the pre-added load for too long, resulting in enhanced resistance to the movement of the bracket, there will be a problem with the balance of action. To improve the sensitivity of the system and reduce the resistance to movement, the preload should be reduced accordingly, while to improve the accuracy of movement and accuracy retention, sufficient preload negative is required, which is the two sides of the contradiction.

Beisheng Weiye Transmission Machinery (Beijing) Co., Ltd. can provide you with high-quality HIIWN linear motion guide products.