The automation accessory system has its own operation mode. Of course, the guide rail as a member of the automation accessories should also operate according to its own operation mode. Today, let's learn about the operation mode of the lower guide rail.

盡管導軌系統的形式是多種多樣的，但工作性質都是相同的，機床工作部件在指定導軌系統上移動，尤如火車沿著鐵軌在指定的方向上行駛。無論是機床導軌還是鐵路上的鐵軌，都是體現如下三種基本功能：

Although there are many forms of guide rail system, the working properties are the same. The working parts of machine tool move on the specified guide rail system, especially when the train runs along the rail in the specified direction. Both machine tool guide rail and railway rail reflect the following three basic functions:

（1）為承載體的運動導向

(1) Guide the movement of the bearing body

（2）為承載體提供光滑的運動表面

(2) Provide a smooth moving surface for the bearing body

（3）把火車的運動或機床的切削所產生的力傳到地基或床身上，減少由此產生的沖擊對乘客和被動加工零件的影響。

(3) The force generated by the movement of the train or the cutting of the machine tool is transmitted to the foundation or bed to reduce the impact on passengers and passively machined parts.

沿導軌系統的運動，大多數為直線運動，也有少數為弧線運動。本文討論的是直線導軌系統。當然，直線導軌的很多技術可以直接應用弧形導軌。

Most of the motion along the guide rail system is linear motion, and a few are arc motion. This paper focuses on the linear guide rail system. Of course, many technologies of linear guide rail can be directly applied to arc guide rail.

導軌為什么被稱為“系統”呢？這是因為導軌系統的工作包含著若干元件的同時工作，基本的元件為一個運動元件和一個固定元件。運動元件的形式有多種多樣，以后將予以詳細介紹，固定元件一般為道軌式，它是導軌精度的保證，如果導軌彎曲變形，運動元件或滑動元件便失去的導向。

Why is the guide rail called "system"? This is because the work of the guide rail system includes the simultaneous work of several elements, and the basic elements are a moving element and a fixed element. There are many forms of moving elements, which will be introduced in detail later. The fixed elements are generally track type, which is the guarantee of guide rail accuracy. If the guide rail is bent and deformed, the moving elements or sliding elements will lose their guidance.

了解了導軌絲杠的運轉方式以后，我們在實際使用過程中要時刻注意它的運轉方式的一些部位的壽命和運轉情況。

After knowing the operation mode of the guide screw, we should always pay attention to the service life and operation of some parts of its operation mode in the actual use process.