The function of linear guide motion is to support and guide the moving parts to do reciprocating linear motion in a given direction. According to the nature of friction, linear motion guide can be divided into sliding friction guide, rolling friction guide, elastic friction guide, fluid friction guide and so on.

直线轴承主要用在自动化机械上比较多,像德国进口的机床,折弯机,激光焊接机等等,当然直线轴承和直线轴是配套用的。像直线导轨主要是用在精度要求比较高的机械结构上,直线导轨的移动元件和固定元件之间不用中间介质，而用滚动钢球。

Linear bearings are mainly used in automation machinery, such as machine tools imported from Germany, bending machines, laser welding machines and so on. Of course, linear bearings and linear shafts are used together. For example, the linear guide is mainly used in the mechanical structure with high precision requirements, and the rolling steel ball is used instead of the intermediate medium between the moving element and the fixed element of the linear guide.

导轨、直线轴作为设备的核心部件之一，它的功用是起导向和支承作用。为了保证机器有较高的加工精度，要求其导轨、直线具有较高的导向精度和良好的运动平稳性。设备在运行过程中，由于被加工件在加工中会产生大量的腐蚀性粉尘和烟雾，基这些烟雾和粉尘长期大量沉积于导轨、直线轴表面，对设备的加工精度有很大影响，并且会在导轨直线轴表面形成蚀点，缩短设备使用寿命。

As one of the core parts of the equipment, guide rail and linear axis play a guiding and supporting role. In order to ensure the high machining accuracy of the machine, its guide rail and straight line are required to have high guiding accuracy and good motion stability. During the operation of the equipment, a large amount of corrosive dust and smoke will be produced during the processing of the processed parts. These smoke and dust will be deposited on the surface of the guide rail and linear axis for a long time, which has a great impact on the processing accuracy of the equipment, and will form corrosion spots on the surface of the linear axis of the guide rail, thus shortening the service life of the equipment.

为了让机器正常稳定工作，确保产品的加工质量，要认真做好导轨、直线轴的日常维护。注意：清洁导轨请准备——干棉布、润滑油。雕刻机的导轨分为直线导轨、滚轮导轨。

In order to make the machine work normally and stably, and ensure the processing quality of the product, we should do a good job in the daily maintenance of the guide rail and linear axis. Note: please prepare dry cotton cloth and lubricating oil for cleaning guide rail. The guide rail of engraving machine is divided into linear guide rail and roller guide rail.

直线导轨的清洁：把激光头移动到右侧(或左侧)，找到直线导轨，用干棉布擦拭直到光亮无尘，再加上少许润滑油(可采用缝纫机油，切勿使用机油)，将激光头左右慢慢推动几次，让润滑油均匀分布即可。滚轮导轨的清洁：把横梁移动到内侧，打开机器两侧端盖，找到导轨，用干棉布把两侧导轨与滚轮接触的地方擦拭干净，再移动横梁，把剩余地方清洁干净。

Cleaning of linear guide: first move the laser head to the right side (or left side), find the linear guide, wipe it with dry cotton cloth until it is bright and dust-free, then add a little lubricating oil (sewing machine oil can be used, do not use engine oil), and slowly push the laser head left and right for several times to evenly distribute the lubricating oil. Cleaning of roller guide: move the crossbeam to the inside, open the end covers on both sides of the machine, find the guide rail, wipe the contact between the guide rail on both sides and the roller with dry cotton cloth, and then move the crossbeam to clean the rest.