Miniature linear guide is a commonly used industrial product, which moves smoothly in the process of application, rarely appears oscillation phenomenon, and more importantly, there is no creeping phenomenon, so more and more enterprises use miniature linear guide. Undoubtedly, the advantages of miniature linear guide are very prominent, which is also the fundamental reason for its popularity. So how is such a good miniature linear guide designed? Let's take a look at the principles that need to be followed in the design of miniature linear guide.
1. The precision of miniature linear guide needs not to interfere with each other, and the precision of linear guide rail manufacturers will not affect each other, thus obtaining a higher precision coefficient.
2. Principle of automatic fitting of miniature linear guide. In order to make the guide rail have high precision, it is necessary to make the guide rail have the characteristics of automatic fitting. The horizontal guide rail can be connected by the weight of moving parts, and other guide rails need extra spring force or roller pressure.
3. According to the principle that the dynamic and static friction coefficients of miniature linear guide are similar, when designing miniature linear guide, it should be as close as possible to the dynamic and static friction coefficients of the contact surface of the guideway, so as to obtain high repeated positioning accuracy and low-speed stability.
4. It is necessary to compensate for the principle of force deformation and thermal deformation of the linear guide rail. The guide rail and its supporting parts will deform with the change of temperature, so when designing the guide rail and its supporting parts, it is necessary to form corresponding shapes after deformation.
5. The principle of full contact of miniature linear guide. In order to fix the length of the guide rail, it is necessary to move the guide rail at two extreme positions of large stroke and contact with the fixed guide rail for the whole length, so that the guide rail can fully contact during the contact process and realize the normal state.
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