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Conical surface inner diameter measuring instrument and measuring method thereof

A measuring instrument and inner diameter technology, applied in the direction of mechanical diameter measurement, etc., can solve the problems of complex structure of parts, difficult measurement of general measuring tools, and only deep holes can be measured, and achieve the effect of convenient use

Active Publication Date: 2021-06-04
三门峡超思量仪科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing general-purpose measuring tools have a wide variety and complete specifications, which can basically meet the inspection needs of workpieces. However, some parts have complex structures and high dimensional accuracy requirements. It is difficult to use general-purpose measuring tools or have large detection errors. For example, the measurement of the inner diameter of large holes with high precision requirements generally uses inner micrometers and inner micrometers, etc., but limited by the structure of the measuring tool, it can only measure deep holes, and it cannot measure shallow holes. It is very difficult to use general-purpose measuring tools Difficult to measure or large error

Method used

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  • Conical surface inner diameter measuring instrument and measuring method thereof
  • Conical surface inner diameter measuring instrument and measuring method thereof
  • Conical surface inner diameter measuring instrument and measuring method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Such as Figure 1-12As shown, a cone inner diameter measuring instrument of the present invention includes a support base 1, a guide 2 and an inner diameter detection unit 3, and the support base 1 includes an upper orifice plate 1-1, a bottom plate 1-2, a column 1-3 and The ground feet 1-4, the upper orifice plate 1-1 and the bottom plate 1-2 are fixedly connected by four columns 1-3, and the four columns 1-3 are symmetrically installed on the four corners of the upper orifice plate 1-1 and the bottom plate 1-2 , the anchor 1-4 is fixedly installed at the four corners of the bottom surface of the bottom plate 1-2, the guide 2 includes a guide sleeve 2-1, a guide sleeve cover 2-2 and a positioning platform 2-3, and the positioning platform 2-3 is a hollow platform , the positioning table 2-3 is fixed on the upper orifice plate 1-1, and the inner hole of the positioning table 2-3 is aligned with the inner hole of the upper orifice plate 1-1, and the guide sleeve 2-1 is s...

Embodiment 2

[0034] Taking the cone inner diameter measuring instrument of embodiment 1 as an example, the measuring method of the cone inner diameter measuring instrument comprises the following steps:

[0035] S1. Zero correction of the cone surface standard part: the cone surface standard part is pierced with the guide sleeve 2-1 and supported on the positioning platform 2-3, and the two probes 3-21 are in contact with the surface of the inner hole of the cone surface standard part through displacement deformation. The displacement and deformation of the two probes 3-21 are transmitted to the T-shaped moving block 3-22 through the connecting rod 3-23, and the T-shaped moving block 3-22 is transmitted to the inner leaf spring unit and the outer leaf spring unit through the screw 3-42. The leaf spring unit and the outer leaf spring unit pass the displacement feedback to the T-shaped moving block 3-22 through the deformation of the leaf spring 3-45, and the left T-shaped moving block 3-22 p...

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Abstract

The invention discloses a conical surface inner diameter measuring instrument and a measuring method thereof. The conical surface inner diameter measuring instrument comprises a supporting seat, a guiding piece and an inner diameter detecting unit, the guiding piece is fixed to the supporting seat and used for limiting and fixing a conical surface detecting piece, and the inner diameter detecting unit is installed on the supporting seat; the inner diameter detection unit comprises an inner diameter detector, a leaf spring mechanism, a displacement sensor and a displacement display, two probes of the inner diameter detector are in contact connection with a conical surface inner hole of the conical surface detection piece through displacement deformation, and the displacement amount is transmitted to the displacement sensor through the leaf spring mechanism and is digitally displayed on the displacement display; when the conical surface inner diameter measuring instrument is used, the displacement of the conical surface standard part is detected firstly, after the displacement of the conical surface standard part is recorded, the reading displayed by the displacement display is reset, and the displacement of the conical surface detection part is detected and recorded by the same method. Finally, the conical surface inner diameter size of the conical surface detection piece at the constant height can be obtained through a subtraction method, and accuracy and rapidness are achieved.

Description

technical field [0001] The invention belongs to the technical field of inner diameter measurement, and in particular relates to a cone inner diameter measuring instrument and a measuring method thereof. Background technique [0002] With the development of the machinery manufacturing industry, all walks of life have higher and higher requirements for the size of the workpiece, especially when it comes to the taper and the inner diameter of the cone. For example, in the automotive industry, the parts that require the measurement of the inner diameter of the tapered hole are automotive pulleys. , Car rear oil seal, etc. The existing general-purpose measuring tools have a wide variety and complete specifications, which can basically meet the inspection needs of workpieces. However, some parts have complex structures and high dimensional accuracy requirements. It is difficult to use general-purpose measuring tools or have large detection errors. For example, the measurement of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/12
CPCG01B5/12
Inventor 李昕鸣
Owner 三门峡超思量仪科技有限公司
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