Performance testing device of static-pressure air bearing

Abstract

The invention relates to a performance testing device of a static-pressure air bearing, which at least comprises a base (1), a film pressure sensor (2), a pressure regulating valve (3), an air intake tube (4), an air pressure gauge (5), a static-pressure air bearing (6) to be tested, a press plate (7), a bearing fixing component (8), a bearing connecting component (9), a linear driver connecting component (10), a limit bolt (11), a linear driver (12), a rack (13), a bracket (14), a force sensor (15), a displacement sensor (16), a driven gear (17), a driving gear (18), a driving motor (19) and a rotating encoder (20). The invention can test the bearing capacity and rigidity of the static-pressure air bearing under different air supply pressures and different air film thicknesses and the air pressure change in the bearing, thereby facilitating the performance testing of the static-pressure air bearing and the optimization of structural parameters of the bearing.

Description

Technical field: [0001] The invention relates to a performance detection device of a static pressure air bearing, which belongs to the field of performance detection of precision equipment. Background technique: [0002] The static pressure air bearing is a frictionless / very low friction support element with subsonic flow gas at a certain pressure as the lubricating medium. It has high precision, no wear, cleanliness, no pollution, long life, maintenance-free and low heat generation , flexible structure design, high / low temperature resistance and atomic radiation, etc., are widely used in three-coordinate measuring machines, high-precision CNC machining, biochip technology, optical fiber docking, and manipulation, assembly, precision positioning, and processing of micro-mechanical parts. . With the rapid development of manufacturing technology and measurement technology, processing technology is constantly moving towards the direction of extreme processing, ultra-high preci...

AI Technical Summary

Problems solved by technology

However, the current detection device can only detect the relationship between the performance of the static pressure air bearing and the shape of the bearing, throttling mode, geometric parameters and air supply pressure, but the direct factor that affects the performance of the bearing: the pressure distribution of the gas in the bearing cannot Direct detection cannot directly analyze the pressure change of the gas in the bearing caused by the above factors, it is difficult to accurately determine the direct cause of the gas pressure distribution in the bearing, and it is impossible to optimize the structural parameters and working conditions of the bearing based on this, which will affect the performance of the bearing. Analysis, optimization of structural parameters, and experimental verification of the theoretical analysis of hydrostatic air bearings pose difficulties

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