Anti-wrapping closed hydrostatic slideway structure of numerical control machine

Abstract

The invention relates to an anti-wrapping closed hydrostatic slideway structure of a numerical control machine. The anti-wrapping closed hydrostatic slideway structure is characterized in that the lower ends of the left side and the right side of a sliding base are respectively and fixedly provided with a movable guide rail through bolts, fixed guide rails are fixed above two inner sides of a machine body, and three end faces of the movable guide rails are respectively provided with a plurality of oil cavities; and a left oil baffle plate and a right oil baffle plate are respectively arranged below two outer sides of the sliding base and used for preventing static pressure oil from leaking to the machine body. The highest rapid transverse speed of a feeding shaft of the machine is 42m / min, an anti-wrapping rectangular sliding guide rail form is adopted, guidance is carried out by using inner sides of the two guide rails so that the deflection of moving components due to the movement can be reduced and guidance performance and guide precision of the moving components are improved; a liquid static pressure guide rail form is selected in coupling surfaces of the guide rails so as to achieve the advantages of extremely small friction resistance and high transmission efficiency; the moving precision of the guide rails are kept well, and the service life of the guide rails is long; the influence of the change of an operating speed of a working platform on the oil film thickness is smaller, the working platform works stably and has no creeping phenomenon at low speed; and an oil film has a vibration-absorbing function and good vibration performance of the guide rails. The anti-wrapping closed hydrostatic slideway structure has large bearing capacity and high supporting rigidity; and high-precision feeding movement of the machine is realized.

Description

technical field [0001] The invention relates to mechanical manufacturing equipment and a reverse-contained closed static pressure guide rail of a numerically controlled lathe in a machine tool. Background technique [0002] The guide rail component is the linear benchmark of the machine tool, and its basic requirements are as follows: smooth motion, flexible motion, absolutely no discontinuous motion such as crawling during linear motion; high linear motion accuracy, and can maintain its accuracy for a long time; In practical applications, there is a rigidity suitable for the use conditions; the heat generated during high-speed movement is less; the maintenance is easy. [0003] There are many types of guide rail structures for commonly used CNC machine tools: dovetail guide rails, plane guide rails, V-plane guide rails, double V-shaped guide rails, and rectangular guide rails. For CNC machine tools, if the dovetail and plane guide rails without special forced lubrication m...

AI Technical Summary

Problems solved by technology

For CNC machine tools, if the dovetail and plane guide rails without special forced lubrication measures are used, there will be wear during use, and the lateral clearance needs to be calibrated regularly, and the operation is more cumbersome

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