Precision grinding and polishing method based on gyroscope cavity of passive laser gyroscope

A laser gyro, passive technology, used in grinding/polishing equipment, grinding devices, grinding machine tools, etc., to achieve the effect of easy grinding and polishing

Active Publication Date: 2021-02-09
TIANJIN JINHANG INST OF TECH PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are no reports on the processing and use of laser gyroscope cavity surface with an external size of 360mm×360mm×50mm at home and abroad. In view of the many difficulties in the precision grinding and polishing

Method used

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  • Precision grinding and polishing method based on gyroscope cavity of passive laser gyroscope
  • Precision grinding and polishing method based on gyroscope cavity of passive laser gyroscope
  • Precision grinding and polishing method based on gyroscope cavity of passive laser gyroscope

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[0020]The application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described here are only used to explain the related invention, but not to limit the invention. In addition, it should be noted that, for ease of description, only the parts related to the invention are shown in the drawings.

[0021]It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. Hereinafter, the present application will be described in detail with reference to the drawings and in conjunction with embodiments.

[0022]This embodiment provides a precision grinding and polishing method based on a passive laser gyroscope gyro cavity, which includes the following steps:

[0023]S01: Select the U plane as the reference plane; measure the relative height of the elevation of the cavity 10 to obtain the first relative height, and determi...

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Abstract

The invention provides a precision grinding and polishing method based on a gyroscope cavity of a passive laser gyroscope. According to the precision grinding and polishing method, on one hand, the process steps of measuring, grinding, finishing, polishing and repeated measuring are combined, on the other hand, in order to solve the problems of clamping and polishing caused by the ultrahigh vertical surface of the cavity, in the process steps, the cavity can be properly inclined so as to be easier to grind and polish, finally, it is guaranteed that the linear dimension and the angular dimension of the cavity can be qualified at the same time, the included angle between adjacent patch surfaces, the perpendicularity angle error between the patch surfaces and the reference surface and the linear dimension are considered to reach the design indexes together, the problems that grinding is excessive, and the size and the angle are out of tolerance in a common method can be solved, it is guaranteed that the surface defect grade and the surface shape precision of the patch surfaces can reach the standard, and the popularization value of patch surface machining of the large-size gyroscope cavity is achieved.

Description

technical field [0001] The present application specifically discloses a precision grinding and polishing method based on a passive laser gyroscope gyroscope cavity. Background technique [0002] The laser gyroscope is used as an angle-sensitive element in the laser strapdown guidance system. It is an angular velocity sensor that uses the Sagnac effect in optics. It has fast start-up speed, short response time, large measurement range, and wide dynamic range. Good shock and vibration resistance, strong environmental adaptability, error has nothing to do with g, digital output and many other advantages. [0003] The gyro cavity is a key part of the laser gyroscope, and the accuracy of its patch surface is one of the key indicators of this key part. The existing grinding and polishing manufacturing technology of the active laser gyro cavity patch surface is basically mature and there are different processing methods for different manufacturers. At present, there are no report...

Claims

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Application Information

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IPC IPC(8): B24B37/00B24B37/27B24B49/02
CPCB24B37/00B24B37/27B24B49/02
Inventor 回长顺白庆光于鑫陈卓张宝兴
Owner TIANJIN JINHANG INST OF TECH PHYSICS
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