A fine adjustment method for the coaxiality of frame type bearing bush

A technology for bearing bushings and frames, which is applied in the field of fine adjustment of the coaxiality of frame-type bearing bushes, and can solve the problems of long adjustment period of frame-type bushing bearings, poor stability, easy to be affected by environmental vibration, and high requirements for tooling precision. , to achieve high repeatability test accuracy, reduce adjustment costs, and save adjustment tooling

Active Publication Date: 2022-04-12
TIANJIN NAVIGATION INSTR RES INST
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AI Technical Summary

Problems solved by technology

However, the tooling in the method of rotating table stand is large in volume, requires high precision of tooling, complicated operation process, poor stability and is easily affected by environmental vibration, and the adjustment period of frame-type bushing bearings is long

Method used

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  • A fine adjustment method for the coaxiality of frame type bearing bush
  • A fine adjustment method for the coaxiality of frame type bearing bush
  • A fine adjustment method for the coaxiality of frame type bearing bush

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0033] A method for fine-tuning the coaxiality of a frame-type bearing bush, the frame-type bearing bush structure involved in the method includes a frame 1 and two bearing bushes 2, the frame is a rectangular frame composed of four sides structure, on one set of opposite sides each is provided with an external connection hole, namely A hole 1.4 and B hole 1.2, and on the other set of opposite sides each is provided with a bearing bush installation hole, the bearing bushes on both sides The mounting holes of the sleeve are set coaxially, which are respectively C hole 1.3 and D hole 1.1, and the open end surface of one side of the frame is the processing reference plane R11.6. Based on the structure of...

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Abstract

The invention relates to a method for fine-tuning the coaxiality of a frame-type bearing bush. The steps are: 1. Clean the end faces and the hole faces of four holes on the frame; 2. Select the reference plane: select the A1 plane as the reference Then select the processing reference plane R1 of the frame. At this time, the A1 plane, the R1 plane and the C1 plane are perpendicular to each other to form a rectangular coordinate system; 3. Initially install two bearing bushes: one bearing bush is inserted into the D hole of the frame 4. Clean and adjust the reference plane; 5. Perform the first step of fine adjustment; 6. Perform the second step of fine adjustment; 7. Repeat again and again The adjustment process of the above steps 5 and 6, until the height difference of the bearing bushes in the two holes in two mutually perpendicular directions is less than 0.0015mm; 8. After the bearing bushes are adjusted, measure the relevant shape and position tolerances on a high-precision coordinate machine , to verify the accuracy of the adjustment. The invention shortens the adjustment cycle, saves the adjustment tooling and improves the adjustment stability.

Description

technical field [0001] The invention belongs to the technical field of fitter assembly, and in particular relates to a fine adjustment method for the coaxiality of a frame type bearing bush. Background technique [0002] The frame type bearing bush structure refers to the structure formed after the bearing bush is assembled to the frame parts. The coaxiality of the frame type bearing bush directly affects the inclination error of the axis of rotation of the shaft system, which determines the rotation accuracy and rotation of the shaft system. Zero precision. Therefore, in order to improve the rotation accuracy of the frame-type bearing bush and reduce its zero-return error, the method of adjusting the coaxiality of the frame-type bearing bush can be optimized to improve the fine adjustment accuracy of the coaxiality of the frame-type bearing bush. [0003] There are two main methods of assembling and adjusting the bearing bushes of the frame type in China, one is the method...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23P19/10G01B21/08G01B21/00
CPCB23P19/10G01B21/08G01B21/00
Inventor 陈祝赵刚陈亚欧徐海辉高建孔德杰侯熙硕
Owner TIANJIN NAVIGATION INSTR RES INST
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