Hydrostatic guideway block integrating flow feedback device and pressure sensor

Abstract

The invention discloses a hydrostatic guideway block integrating a flow feedback device and a pressure sensor. The hydrostatic guideway block comprises a two-cavity sliding block, the pressure sensorand the thin film flow feedback device, wherein the two-cavity sliding block comprises a sliding block body; a screw-joint fixed hole is formed in the sliding block body; a lifting cavity is arrangedon the left side of the sliding block body; and a pressure maintaining cavity is arranged on the right side of the sliding block body. According to the device, the pressure change trend can be detected by utilizing the pressure sensor, and the installation positions of the two-cavity sliding block and a support plate are re-adjusted, so that the installation accuracy is ensured; and the device isfurther integrated with the thin film flow feedback device, and the flows in an upper oil cavity and a lower oil cavity are automatically adjusted, so that a completely installed hydrostatic guidewayis ensured to have the same oil film rigidity and characteristics on various parts; and in addition, the position of a throttle formed by an elastic thin film sheet is close to the positions of the lifting cavity and the pressure maintaining cavity, so that an oil circuit can be effectively shortened, and the dynamic rigidity is ensured.

Description

technical field [0001] The invention relates to the technical field of machine tool equipment, in particular to a static pressure guide rail block integrating a flow feedback device and a pressure sensor. Background technique [0002] The hydrostatic guideway is an important component of the machine tool, including two types: open type and closed type, and can be divided into two types: vertical axis and horizontal axis according to its installation position, and its structure can also be subdivided into rectangular structure, Shaped structure and box structure etc. [0003] The traditional hydrostatic guide rail does not have an oil chamber pressure sensor as pressure feedback. The film feedback restrictor is separated from the guide rail. The restrictor is far away from the oil chamber and the oil passage is far away, which cannot guarantee the dynamic stiffness of the oil film. It is difficult to install and maintain. There are many and complicated pipelines. After the s...

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Problems solved by technology

[0003] The traditional hydrostatic guide rail does not have an oil chamber pressure sensor as pressure feedback. The film feedback restrictor is separated from the guide rail. The restrictor is far away from the oil chamber and the oil passage is far away, which cannot guarantee the dynamic stiffness of the oil film. It is difficult to install and maintain. There are many and complicated pipelines. After the static pressure loses pressure, it is impossible to judge the fault, and it is prone to oil leakage, etc.

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