The working principle of the linear guide

What is the linear guide
Linear guide is also called line rail, slide rail, linear guide, linear slide rail, used for straight line reciprocating movement situation, and can bear certain torque, can be achieved under the condition of the high load and high precision linear motion.According to linear guide on the mainland, Taiwan is generally called linear guide rail, linear slide rail.Divided into square ball linear guide, biaxial core roller linear guide, single axial linear guide.The function of linear guide movement is used to support and guide the moving parts, according to the given direction do reciprocating linear motion.Depends on according to the nature of the friction, linear motion guide rail can be divided into sliding friction guide rail friction, rolling friction guide rail, elastic guideway, fluid friction guide rail type, etc.Linear bearing is mainly used in automated machinery, as Germany imported machine, bending machine, laser welding machine, etc., linear bearing and straight axis, of course, is for the use of form a complete set.As linear guide is mainly used in precision demand is higher, on the mechanical structure of the linear guide mobile medium without intermediate betweencomponents and fixed components, and rolling steel ball.
The working principle of the linear guide
Can be understood as a kind of rolling guide that is made up of steel balls in between slide block and guide the infinite scroll cycle, so that the load platform of high precision linear motion along the guide rail easily, and reduced friction coefficient to one over fifty of the normal traditional sliding guide, can easily achieve a high positioning accuracy.Sliding block with the voucher at the end of the yuan between guideway design, make the linear guide rail under the direction of the up and down or so and so on various load at the same time, the recycling of patent system and streamlined structure design let HIWIN linear guide rail is more smooth and low noise.
Slider - make the movement by the curve into a straight line.New guide system makes the machine can be obtained quickly feed speed, under the same spindle speed, fast feed is the characteristic of linear guide.Linear guide like flat guide, there are two basic elements;As a guide for the fixed element, the other is a mobile device.
Due to the linear guide is a standard parts, for machine tools factory. The only to do is processing a installation guide plane with the school guide of parallelism.of course, in order to ensure the accuracy of machine tools, lathe bed or post a small amount of research is essential, in most cases, the installation is relatively simple.
As oriented guide for hardened steel, after fine grinding in installed in the plane.Compared with flat guide, linear guide cross-section geometry, more complicated than the flat guide, complex because guide rail need to work out on the groove, to facilitate the movement of the sliding element, the shape of the groove and number, depending on the function of the machine tool to complete.
For example: a under linear force and overturning moment under the guide rail system, compared with only force under linear guide rail. The design has the very big different.
The fixed element of linear guide system (guide) as the basic function of bearing ring, installation of steel stents, shape of "v" glyph.
Wrapped around the top and two sides of the guide rail.In order to support the working parts of the machine tool, a set of linear guide bracket of at least four.Used to support the large working parts, the number of stents may be more than four.
Design of guide rail system, and strive to a fixed area has the largest contact between components and mobile components, it not only can improve the bearing capacity of the system, and system can withstand the impact of the intermittent cutting or cutting of gravity, the force is widely spread, increase the size of the tolerance.To achieve this, the groove shape have a variety of guide rail system, there are two kinds of representative, a called gothic (pointed arch type), is an extension of the semicircle shape, the contact point for vertex;Another kind of circular arc form, can also play the same role.
No matter what kind of structure form, only one purpose, strive for more ball radius and rolling guide contact element (fixed).The key factors of system performance characteristics are: how rolling element contact with guide rail, it is the key to the problem.
Supplier
BMB Bearings ia a precision bearing enterprise specializing in the production of double row angular contact ball bearings, double row deep groove ball bearings, and single row angular contact ball bearings. The company is a end bearings manufacturer enterprise producing double row angular contact ball bearings in China. Its models cover 3200 series, 3300 series, 3000 series, 3800 series, 3900 series, etc. The product accuracy grades are: P0, P6, P5, P4, and the products are widely applicable.
The company also maintains an extensive inventory of superior roller bearings, ball bearings, Deep Groove Ball Bearings, Selfaligning ball bearing, Angular Contact Ball Bearings, Thrust Ball Bearings and much more.