Aperture size measuring device and measuring method

The technology of a measuring device and a measuring method, which is applied in the direction of mechanical diameter measurement, etc., can solve the problems of prone to errors in measurement, complicated operation process, and difficulty in meeting measurement needs, etc., and achieves improved measurement efficiency, quick disassembly, strong versatility and practicability Effect

Inactive Publication Date: 2020-12-18
CHENGDU AIRCRAFT INDUSTRY GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of the large-scale measurement requirements with a particularly large number of apertures, the conventional measurement method has problems such as complicated operation process and prone to errors in measurement, which is difficult to meet the measurement needs

Method used

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  • Aperture size measuring device and measuring method
  • Aperture size measuring device and measuring method
  • Aperture size measuring device and measuring method

Examples

Experimental program
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Effect test

Embodiment 1

[0027] The present invention is an aperture size measuring device, comprising a measuring block 1 and a measuring rod 2, the rear part of the measuring rod 2 is a handle 3, the middle part of the measuring rod 2 is provided with threads, and at least three measuring blocks 1 are fixed on the measuring rods through threads; The outer diameter of the measuring block is distributed according to the tolerance steps of the hole 4 to be measured, and increases sequentially from the front end to the rear.

[0028] The outer diameter of the measuring block is distributed according to the tolerance of the measured aperture.

[0029] Example 1

[0030] The present invention is an aperture size measuring device, comprising a measuring block 1 and a measuring rod 2, the rear part of the measuring rod 2 is a handle 3, the middle part of the measuring rod 2 is provided with threads, and at least three measuring blocks 1 are fixed on the measuring rods through threads; The outer diameter of...

Embodiment 3

[0032] A method for measuring the aperture size of the present invention, at first according to the size of the aperture of the measured hole 4 of the part The size of the measured hole and the accuracy requirements of the measured hole 4, the tolerance of the measured hole is divided into n equal parts according to the measurement accuracy, and then the size of the preparation is , , ··· , n measuring blocks, and finally install the measuring blocks on the measuring rod in order. When in use, you only need to put the measuring tool into the hole of the part to be measured, and find the measuring block that just fits the hole to be measured. Measure the size of the hole.

[0033] The measuring block 1 and the measuring rod 2 that can be installed with measuring blocks of various sizes can be assembled on the measuring rod through threaded connection, so as to measure the hole to be measured corresponding to the hole diameter of the measuring block 2 .

[0034] Measu...

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Abstract

The invention provides an aperture size measuring tool and a measuring method, and is used for measuring the aperture size. The method comprises the following steps: dividing the tolerance of a to-be-measured hole into n equal parts according to the measurement requirements based on the aperture of the to-be-measured hole (wherein D is the diameter, a is the deviation of the aperture and b is thedeviation of the aperture), manufacturing n measurement blocks, installing the measurement blocks on a measurement rod, plugging a measurement tool into the hole of a to-be-measured part during use, and measuring according to the number of the plugged measurement blocks so as to conveniently and quickly calculate the aperture size and complete measurement. The measurement precision of the measurement method is determined according to actual measurement requirements, the larger the equally divided n of the tolerance zone is, the higher the measurement precision is, the smaller the equally divided n of the tolerance zone is, the lower the measurement precision is, and the measurement precision is described in the specification. The measuring method is simple, convenient and accurate in aperture measurement, and the measuring tool in the measuring method has a series of advantages of simple structure, convenience in installation and use, high practicability, easiness in popularization andthe like.

Description

technical field [0001] The invention belongs to the field of machining, in particular to the technical field of machining measurement. Background technique [0002] Aperture measurement is the main content of length measurement technology. For the measurement of hole diameter, there are measurement methods such as direct measurement, indirect measurement and comprehensive measurement. Direct measurement is the method of directly measuring the aperture by two or three-point positioning, and it is also the most commonly used aperture measurement method. According to the precision grade size and quantity of the measured hole, a general-purpose length measurement tool that can measure the aperture can be used, such as Vernier calipers, universal ratio meters, etc.; special aperture measurement tools can also be used, such as inner diameter micrometers, inner diameter dial indicators, dial gauges and other aperture measuring instruments. Indirect measurement is a method of first...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/12
CPCG01B5/12
Inventor 欧映鸿孛正军彭彩霞王波文琴夏文涵王元军夏士伟李天栋雷光林
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
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