What is Line rail and hard rail for the machining center?
Everyone in the machine tool industry knows that machining centers have a distinction between hard rails and linear rails. People who are not specialized in the production of machining centers often have questions when they encounter these two products. What is the difference between the two?
What is linear rail and hard rail for the machining center?
The so-called hard rail refers to the hard rail, and the linear rail is the linear rail. The hard rail refers to the casting that the guide rail and the bed are integrated, and then the guide rail is processed on the basis of the casting. That is, the shape of the guide rail is cast on the bed, and then the guide rail is processed after quenching and grinding. There are also guide rails that are not necessarily integrated with the bed and the guide rail. For example, the inlaid steel guide rail is nailed to the bed after processing. Linear guides usually refer to rolling guides, which are the kind used in linear modules that are often used in the machine tool industry. We usually call such components "linear guides". The linear guide itself is divided into two parts: the slide rail and the slider. There are balls or rollers with inner circulation in the slider, and the length of the slide rail can be customized.
The main difference between the two is that the hard guide rails can withstand large cutting forces and are mainly used for machine tools above 1.3 meters. Such machine tools are mainly used for mold processing, but the disadvantage is that the guide rails cannot move too fast. The linear guide rail bears relatively small cutting force, but the guide rail moves very fast. At present, the Z-axis movement speed of the drilling rig is generally around 60M. Such guide rails are mainly used in some relatively small machine tools. In terms of service life, linear guides are considerably higher than rigid guides.
There is no best, only the most suitable
Both hard rails and linear rails have their advantages and disadvantages, so there is no way to say which is better, only the most suitable for enterprise production.
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