1. The rolling guide block is a kind of rolling guide with rolling elements in circular motion. The matching guide is usually steel inlaid hardened guide, which is often used on CNC machine tools with large travel. The common faults of this kind of rolling guide rail in use are the damage to the guide rail surface caused by the excessive noise and vibration of the rolling guide rail block during the working process caused by the improper pre tightening force or the failure to meet the requirements during the pre tightening of the rolling guide rail, and the uneven hardness of the steel inlaid hardened guide rail and the excessive pre tightening force of the matching guide rail over the whole length of the guide rail. At this time, it is very important to adjust the preload of the rolling guide block. In order to ensure that the above failures do not occur during the rolling guide block working, great attention should be paid to the installation method of the rolling guide block. An effective method that can not only make the installation and adjustment convenient, but also ensure the working accuracy of the guide rail is to fasten the rolling guide rail block on the adjustable block or insert. In this way, as long as the wedge block or insert has enough allowance, the rolling guide rail can be installed and adjusted conveniently and the working accuracy can be guaranteed (the preload can be easily controlled).
2. Linear rolling guide rail is another kind of rolling guide rail developed to meet the needs of CNC machine tools. Its most outstanding advantage is that it has no clearance and can exert preload. The linear rolling guide rail has the function of automatic adjustment, the motion accuracy can reach the micron level, and can bear the load in any direction. This kind of guide rail is easy to assemble, and there are many models and specifications to choose from. As long as the maintenance personnel are careful in adjustment and pay attention to protection during use, faults will rarely occur.
