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Plain plug gauge for measuring incomplete holes and design method thereof

A design method and plug gauge technology, applied in the direction of measuring gauge, plug gauge, etc., can solve the problems that measuring tools cannot directly measure, difficulty in detection, and parts accuracy detection, etc., and achieve simple structure, simple design method, and plug gauge. high precision effect

Active Publication Date: 2016-01-06
AECC AVIATION POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In many processed parts, it is often encountered that there are incomplete (concentric) counterbore or reaming on the hole, and the incomplete counterbore or reaming also has dimensional tolerance requirements. The inspection method is as usual. For example, the measurement of smooth plug gauges, calipers, and inner diameter gauges cannot be measured, which makes detection difficult, and ordinary measuring tools cannot be directly measured, causing problems in the accuracy detection of such parts

Method used

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  • Plain plug gauge for measuring incomplete holes and design method thereof
  • Plain plug gauge for measuring incomplete holes and design method thereof
  • Plain plug gauge for measuring incomplete holes and design method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] Embodiment 1: (dimension unit: mm)

[0057] The part hole size is: deep 8 and measuring in R hole length 5.

[0058] The plug gauge size is designed as:

[0059] a Positioning part: The length L1 is taken as 5.

[0060] bMeasurement part: through end Rm=6 / 2+10-6 / 2=10; tolerance of Rm

[0061] End stop Rn=(6+0.015) / 2+(10+0.08)-6 / 2=10.0875; tolerance of Rn

[0062] The length L2 is 6.

[0063] c Plug gauge handle size: ￠D=(Rm-1)=10-1=9.

Embodiment 2

[0064] Embodiment 2: (dimension unit: mm)

[0065] The part hole size is: deep 4 and measuring at R hole length 10.

[0066] The plug gauge size is designed as:

[0067] a Positioning part: The length L1 is taken as 4.

[0068] bMeasuring part: Rm=10.02 / 2+(8+0.04)-10.02 / 2=8.04 at the through end; tolerance of Rm

[0069] End stop Rn=(10+0.03) / 2+(8+0.12)-10.02 / 2=8.125; tolerance of Rn The length L2 is taken as 10.

[0070] c Plug gauge handle size: ￠D=Rm-1=8-1=7.

Embodiment 3

[0071] Embodiment 3: (dimension unit: mm)

[0072] The part hole size is: 15 deep and measure at R hole length 3.

[0073] The plug gauge size is designed as:

[0074] a Positioning part: Since the length of the part is greater than 5, L1 takes 7.

[0075] bMeasuring part: Rm=12 / 2+(15+0.1)-12 / 2=15.1 at the through end; tolerance of Rm

[0076] End stop Rn=(12+0.1) / 2+(15+0.3)-12 / 2=15.35; tolerance of Rn

[0077] Because the part hole length is less than 5, so L2=3+1=4.

[0078] The handle size of c plug gauge: ￠D=Rm-1=15.1-1=14.1≈14.

[0079] This measurement method is suitable for countersinking or reaming on small holes, and the measurement of a large number of holes. It is more common in aviation products. The size calculation of the plug gauge is simple, easy to understand, simple in structure, easy to manufacture, and convenient to use, etc. advantage. However, if the processed hole is too large, it will be difficult to manufacture and use, and this method ...

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Abstract

The invention provides a plain plug gauge for measuring incomplete holes and a design method thereof. The plain plug gauge comprises a plug gage body. The plug gage body is of a stepped cylindrical structure, and is composed of a positioning part at one end thereof, an intermediate measurement part and a hand-held part at the other end thereof. The measurement part comprises a go end and a not-go end. The go end and the not-go end are respectively of a small semi-circle cylindrical-surface structure and a large semi-circle cylindrical-surface structure, and are concentrically arranged. The radius of the go end is larger than the radius of the positioning part. The plain plug gauge is simple and straightforward in dimension calculation, simple in structure, easy to manufacture and convenient to use.

Description

【Technical field】 [0001] The invention relates to the technical field of plug gauge design, in particular to a smooth plug gauge for measuring incomplete holes and a design method thereof. 【Background technique】 [0002] In many processed parts, it is often encountered that there are incomplete (concentric) counterbore or reaming on the hole, and the incomplete counterbore or reaming also has dimensional tolerance requirements. The inspection method is as usual. For example, the measurement of smooth plug gauges, calipers, and inner diameter gauges cannot be measured, which makes detection difficult, and ordinary measuring tools cannot be directly measured, causing problems in the accuracy detection of such parts. Therefore, it is necessary to design special measurement tools to ensure the measurement and inspection of parts and improve measurement efficiency. 【Content of invention】 [0003] The object of the present invention is to provide a smooth plug gauge for measuri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B3/50
Inventor 孙洁郭相峰薛波党红武苏琳王荣王茂民牛阿妮
Owner AECC AVIATION POWER CO LTD
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