Numerical control lathe guide rail which basic requirements demand satisfaction?

CNC lathe guide according to the motion track can be divided into linear motion guide rail and circular motion guide rail; According to the job nature mainly can be divided into motion guide rail, feed motion guide rail and a guide rail; According to the contact area of the nature of the conflict can be divided into sliding guide rail and the rolling guideway. CNC lathe guide in nc machining of 'play' a very important role, so what are the basic requirements for the following? 1. Higher precision guidance accuracy refers to the movement of the lathe parts moves along the rail lines and between it and the base of mutual bearing accuracy. No matter when no load or cutting the workpiece, guide should have satisfactory guidance precision, this is a basic requirement of guide rail. Primary reason affected the accuracy of guide rail, besides making precision and guide way structure, installation quality, guide rail and the rigidity and thermal deformation of bearing, on hydrostatic guideway and oil film stiffness, etc. 2. Wear-resisting performance is better guide rail wear is in the process of long-term use guide rail insist must guide the ability of precision. Numerical control lathe for guide not wear in the operation process, so, should strive to reduce wear and can active compensation or facilitate adjustment after the wear and tear. Numerical control lathe often choose conflict coefficient of rolling guideway and hydrostatic guideway, to decrease guide rail wear. 3. Be satisfied with the stiffness of rail stress deformation will affect the components between the guidance precision and relative orientation, therefore, demand guide should have satisfactory degree. To reduce or balance the effect of external force, often for the CNC lathe more guide the dimensions or lick for guide stiffness way to progress. 4. Low speed running smoothness to guide the small resistance, conflict movement is simple, no creeping phenomenon during low speed movement. 5. Structure in brief, to better guide the production and repair in usability, when applied to facilitate adjustment and maintenance.

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