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Measuring tool and measuring method for measuring the internal diameter of an annular hole

A technology of annular hole and inner diameter, applied in the direction of mechanical diameter measurement, etc., can solve the problem of inability to measure the inner diameter of annular hole accurately, and achieve the effect of novel structure, convenient operation, stable and reliable rotation

Active Publication Date: 2015-12-02
江南工业集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a measuring tool for inner diameter of annular hole, which can solve the problem that conventional measuring tools such as vernier caliper, inner diameter dial indicator and special plug gauge cannot measure the inner diameter of annular hole, boss or raised part in the hole. measurement problem

Method used

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  • Measuring tool and measuring method for measuring the internal diameter of an annular hole
  • Measuring tool and measuring method for measuring the internal diameter of an annular hole
  • Measuring tool and measuring method for measuring the internal diameter of an annular hole

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Embodiment Construction

[0041] A measuring tool for measuring the inner diameter of an annular hole, such as figure 1 , shown in 5, including the main part of the measuring tool gauge body 5; two bearings 2 installed in the bearing holes 13 of the gauge body 5, a rotating shaft 1 matched with the inner diameter of the bearing, a lever 6 installed on the rotating shaft 1, and a lever measuring part In order to embed the hard alloy ball head, the positioning pin 8 installed in the small hole of the lever, the spring 9 set on the positioning pin 8, the carbide probe 10 installed on the measuring part of the gauge body, and pass through the dial indicator installation hole 14 The dial gauge 11 that is in contact with the lever is installed in the dial gauge installation hole 14 to clamp the spring sleeve 4 of the dial gauge, and the screw 3 for clamping the spring sleeve, and pass through the threaded hole 15 of the gauge body to position the lever Acting screw 7;

[0042] In the above scheme, the dial ...

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Abstract

The invention discloses a measuring tool and a measuring method for measuring the internal diameter of an annular hole. The measuring tool comprises a gauge body, an indicating gauge and a lever. The gauge body has a measuring portion. The sidewall of the gauge body is equipped with a mounting groove. The gauge body is also equipped with an indicating gauge mounting hole that penetrates the sidewall of the gauge body and the bottom surface of the mounting groove. The measuring end of the indicating gauge is disposed in the indicating gauge mounting hole. The lever, disposed in the mounting groove through a rotating shaft, has a pull portion, a first extension portion and a second extension portion, wherein the end of the first extension portion is provided with a measuring ball head, and the end of the second extension portion has a contact surface that contacts the measuring end of the indicating gauge. The sidewall of the measuring portion, far away from the mounting groove, is provided with a probe. The measuring ball head of the first extension portion is positioned in the mounting groove of the measuring portion. The measuring tool and the measuring method help to solve the problem that conventional measuring tools such as vernier calipers, internal diameter indicating gauges and special-purpose plug gauges cannot accurately measure the internal diameter of annular holes and holes with bosses or protruding parts inside.

Description

technical field [0001] The invention relates to an inner diameter measuring tool, which belongs to the technical field of measuring instruments, and is especially suitable for precise inner diameter measurement of annular holes or bosses in the holes. Background technique [0002] In the prior art, the measuring tool for the inner hole is generally a vernier caliper, an inner diameter dial indicator, and the special inner diameter measuring tool is a plug gauge. However, the measurement objects of these measuring tools are all complete inner holes. For the inner diameter of annular holes and holes with bosses or raised parts in holes, these measuring tools cannot be extended into the corresponding parts for measurement. Contents of the invention [0003] The purpose of the present invention is to provide a measuring tool for the inner diameter of annular holes, which can solve the problem that conventional measuring tools such as vernier calipers, inner diameter dial indic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/12
Inventor 杨亚强喻立王敏辉廖宏宇
Owner 江南工业集团有限公司
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