Direct drive precision gas static pressure guide rail pair used in vertical direction

Abstract

The invention discloses a vertically used direct drive precise air lubricated hydrostatic guide pair which comprises a guide base in a regular hexagonal prism shape, a slide carriage capable of sliding along the guide base, a first linear motor and a second linear motor. The first linear motor and the second linear motor are mounted between the guide base and the slide carriage. The inner wall section of the slide carriage is a hexagon. A hexagonal section square pillow serves as the guide base. The hexagonal air lubricated hydrostatic guide pair adopts four faces as the bearing faces, symmetrical arrangement of the bearing faces is achieved, high movement straightness and structural rigidity and high movement positioning and repeating precision can be achieved, and deformation caused by temperature fluctuation is minimized; the four faces are adopted as the air lubricated hydrostatic bearing faces, the other two symmetrical side wall faces are separately provided with the linear motors, and symmetrical layout of guide pair bearing and driving is achieved; and bearing rigidity of the guide pair is ensured by adoption of a porous restrictor, the structure has the characteristics of high precision and good symmetry, and the guide pair is particularly suitable for vertical using conditions.

Description

technical field [0001] The invention relates to the technical field of machine tools and instruments, in particular to a direct-drive precision gas static pressure guide rail pair used in the vertical direction. Background technique [0002] With the improvement of the precision requirements of modern product parts, the rigidity and precision technical requirements of its processing and testing equipment are also higher, and the gas static pressure guide rail has the characteristics of high precision; especially the guide rail pair of the porous restrictor has a higher Stiffness, suitable for precision machining and measurement fields. [0003] In precision machining and inspection equipment, vertical movement is required. The vertical movement often requires higher manufacturability, precision and rigidity of the guide rail pair. Contents of the invention [0004] The embodiment of the present invention provides a direct-drive precision gas static pressure guide rail pa...

AI Technical Summary

Problems solved by technology

[0004] The embodiment of the present invention provides a direct-drive precision gas static pressure guide rail pair used in the vertical direction to solve the problems encountered in the vertical direction movement in the prior art. The guide rail pair has the characteristics of high precision and good symmetry , especially for use in vertical orientation

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