An internal feedback precision closed hydrostatic turntable

Abstract

The invention relates to an internal feedback precision closed static pressure turntable, which is a new and special structural form with constant pressure oil supply, built-in restrictor and gap throttling. It mainly includes base, internal feedback hydrostatic bearing, worktable, torque motor stator, torque motor rotor, transmission shaft and transmission disc. Enter the lower pressure-bearing oil chamber, and the other way passes through the throttling structure inside the lower pressure-bearing oil chamber and then enters the upper pressure-bearing oil chamber to form an axially closed static pressure structure; The throttling structure flows into the pressure-bearing oil chamber on the opposite side, and the hydraulic oil of the other channel flows into the pressure-bearing oil chamber on the opposite side through the throttling structure in the pressure-bearing oil chamber on the opposite side, forming a radially closed static pressure structure. The invention greatly improves the bearing rigidity and the anti-overturning ability of the turntable, is applied to the grinding equipment, and effectively improves the grinding dimensional accuracy of the machine tool and the surface quality of the workpiece.

Description

technical field [0001] The invention belongs to the technical field of hydrostatic turntables, in particular to an internal feedback precision closed hydrostatic turntable. Background technique [0002] In the structure of the existing static pressure turntable, a restrictor is installed outside the worktable, resulting in many pipelines installed on the periphery of the worktable, poor aesthetics and functionality, and complicated steps to adjust the flow and pressure of the worktable. Among them, the radial static pressure and the axial static pressure are divided into two parts, which are not integrated on a static pressure bearing, which will increase the cumulative error in the overall table structure, thus increasing the difficulty of assembly and affecting the overall accuracy of the table. . SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to overcome the shortcomings of the prior art, and to provide a method that can greatly improve the r...

AI Technical Summary

Problems solved by technology

[0002] The structure of the existing static pressure turntable is to install a restrictor outside the workbench, resulting in many pipelines installed around the workbench, poor aesthetics and functionality, and complicated steps to adjust the flow and pressure of the workbench

Among them, the radial static pressure and the axial static pressure are divided into two parts. If they are not integrated on a static pressure bearing, multiple accumulated errors will be added to the overall workbench structure, thereby increasing the difficulty of assembly and affecting the overall accuracy of the workbench.

Images