Hydrostatic-permanent magnet dual-suspension bearing guide rail system

Abstract

A static pressure-permanent magnetic double suspension support guide rail system is composed of two sets of support systems: a permanent magnetic suspension system and a hydrostatic pressure system. The four bar-shaped grooves on the top and bottom of the existing guide rail are equipped with permanent magnet strips that are installed side by side and have opposite magnetic pole directions of the two adjacent permanent magnet strips. There are four identical rectangular oil inlet chambers on the inner side of the upper and lower static pressure guide plates, and a connected Tianzi-shaped oil return chamber A is arranged around the four oil inlet chambers. Grooves are arranged in the middle entities of the four oil inlet chambers, and permanent magnet strips are arranged in parallel in each groove. These permanent magnet strips are all opposite to the permanent magnet strips on the guide rail grooves and have the same magnetic poles. The static pressure guide plates on both sides are provided with a rectangular oil inlet chamber and a Japanese-shaped oil return chamber, and the oil pipe joints and fastening screws are all arranged on the static pressure guide plates on both sides. The invention can increase the bearing capacity and static rigidity of the guide rail system, and improve the machining accuracy and stability of workpieces.

Description

technical field [0001] The invention relates to the field of machine tool guide rails, in particular to heavy-duty numerical control precision machining machine tools. Background technique [0002] Heavy-duty CNC machine tools are "industrial aircraft carriers", which directly reflect a country's competitiveness and comprehensive national strength. Therefore, countries all over the world spend a lot of money on research on heavy-duty CNC machine tools. With the vigorous development of downstream equipment manufacturing industries such as aerospace, national defense and marine engineering, it has brought huge market opportunities for heavy-duty CNC machine tools; There are challenges, prompting it to gradually develop in the direction of high-end precision. [0003] Due to its advantages of wide speed range, strong carrying capacity, and long working life, hydrostatic guide rails have been widely used. However, with the rapid development of manufacturing technology today, pe...

AI Technical Summary

Problems solved by technology

During the adjustment process, each oil cavity is coupled with each other, and the oil cavity supports the self-weight and working load of the guide rail, and is prone to elastic deformation (especially at the position of the oil seal edge), which has a great impact on the load distribution of the guide rail system.

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