Oil seal device convenient to measure oil pressure of oil cavities of vertical ultraprecise static-pressure guide rail

Abstract

The invention discloses an oil seal device convenient to measure oil pressure of oil cavities of a vertical ultraprecise static-pressure guide rail. The device comprises a slide table, an oil seal, an oil inlet joint, a throttler and the like; the oil seal and the slide table are connected by a connecting piece; a sealing ring is mounted between the oil seal and the slide table; a hole connected with an oil pressure measuring hole sealing plug penetrates through the oil seal, and is respectively communicated with six oil cavities of the slide table; a hole connected with a second communicating hole sealing plug is respectively communicated with the hole, connected with the oil pressure measuring hole sealing plug, and a hole connected with a capillary mounting hole sealing plug, and enables five capillary mounting holes to be communicated with each other; a third communicating hole sealing plug is communicated with a hole connected with the other capillary mounting hole sealing plug, and is communicated with the hole connected with the first communicating hole sealing plug; six capillary mounting holes are communicated with each other; and a hole connected with the oil inlet joint is communicated with the hole connected with the third communicating hole sealing plug. The device can read the pressure numbers of the oil cavities in real time, is convenient for oil pressure detection, and realizes real-time online measurement.

Description

technical field [0001] The invention is a vertical ultra-precision static pressure guide rail oil chamber oil pressure test oil seal device, which belongs to the innovative technology of the vertical ultra-precision static pressure guide rail oil chamber oil pressure test oil seal device. Background technique [0002] At present, the hydrostatic guideway is widely used in ultra-precision machine tools. The hydrostatic guideway is equipped with multiple oil chambers, and each oil chamber is equipped with a throttle; the precision hydraulic servo system provides a certain pressure of oil through the capillary and enters the corresponding The oil chamber, the oil film formed between the slide table and the guide rail makes the slide table float to ensure that the surface of the guide rail is in a liquid lubrication state; when the slide table receives a variable load or the oil supply pressure changes suddenly, the capillary restrictor plays a role of pressure compensation , Au...

AI Technical Summary

Problems solved by technology

At present, there is no device for measuring the pressure of the oil chamber of the static pressure guide rail in China, or the measurement method is complicated, especially for the vertical static pressure guide rail.

[0004] The existing straight-through restrictor has many defects, such as complex structure, troublesome disassembly and assembly, unadjustable capillary length, resulting in unadjustable throttling ratio, unmeasurable oil pressure at the outlet of the restrictor or complicated detection method

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