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A multifunctional hand-held measuring instrument

A measuring instrument and multi-functional technology, which is used in the field of hole diameter measurement, coaxiality measurement, and rotation axis angle measurement. It can solve the problems of low measurement accuracy, low instrument utilization, low reliability, etc. High, reduce manufacturing cost and manufacturing difficulty, simplify the effect of structure

Active Publication Date: 2019-12-10
SHENYANG AIRCRAFT CORP
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the coaxiality measurement, rotation axis angle measurement, and hole diameter measurement instruments used in aircraft assembly have the following disadvantages: First, each instrument has only one function, which is inconvenient to carry and low utilization rate of the instrument
Second, the instrument has low measurement accuracy and low reliability

Method used

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  • A multifunctional hand-held measuring instrument
  • A multifunctional hand-held measuring instrument
  • A multifunctional hand-held measuring instrument

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Experimental program
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Effect test

Embodiment

[0017] Such as figure 1 , figure 2 As shown, a multifunctional handheld measuring instrument includes a multi-stage sleeve 1, a first compression spring 2, a telescopic control button 3, a self-weight angle dial 4, a diameter measuring instrument 5, a second compression spring 6, and a diameter measurement button 7 ;

[0018] The rear end of the multi-stage sleeve 1 is arranged with a first compression spring 2 perpendicular to the barrel, and a diameter measuring instrument 5 is arranged at the position of the first compression spring 2, and part of the diameter measuring instrument 5 is inserted into the hole to be measured of the multi-stage sleeve 1 , through the cooperation of the diameter measurement button 7 arranged on the outer side of the cylinder body of the multi-stage sleeve 1, press the diameter measurement button 7, and the diameter measuring instrument 5 will automatically spring open in the radial direction under the action of the first compression spring 2,...

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Abstract

The invention provides a multifunctional handheld measuring instrument. A multi-stage sleeve is arranged on the measuring instrument; a compression spring is arranged in the sleeve; the multi-stage sleeve can be released by pressing a press button arranged above the sleeve, can be ejected out for the required measuring length under the effect of the compression spring, and is used for completing the coaxiality measurement; a self weight scale in the sleeve can maintain the state that the scale 0 always points to the lower side in a way of being vertical to the ground; the angle of a pointer of the measuring rod pointer indicating on the scale is the included angle between the rotating shaft and the gravity direction; a diameter measuring device is arranged at the end part of the measuring instrument; the diameter measuring device is partially inserted into a hole to be measured; the press button is pressed; the partial structure of the measuring device is automatically ejected open in the radial direction; the ejection diameter size is the diameter size of the measured hole; the hole diameter measurement can be realized through reading the value on the diameter measurement instrument. The measuring instrument can be used for simultaneously completing the coaxiality measurement, the hole diameter measurement and the rotating shaft angle measurement; the operation and the carrying are convenient; the operation is simple; the measuring precision is high; the implementation performance is high; the stability is high.

Description

technical field [0001] The invention belongs to the technical field of measuring instruments, and in particular relates to a conveniently portable instrument and method for measuring coaxiality, rotating shaft angle and hole diameter. Background technique [0002] At present, the coaxiality measurement, rotation axis angle measurement, and hole diameter measurement instruments used in aircraft assembly have the following disadvantages: First, each instrument has only one function, which is inconvenient to carry and low utilization rate of the instrument. Second, the measurement accuracy of the instrument is low and the reliability is low. Therefore, it is necessary to invent a new type of measuring instrument. Contents of the invention [0003] The object of the present invention is to provide an instrument and method capable of simultaneously measuring coaxiality, rotating shaft angle and hole diameter. It has the advantages of convenient portability, simple operation, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/10G01B21/22G01B21/24
CPCG01B21/10G01B21/22G01B21/24
Inventor 王帅吕国成刘志涛杜芳静郭晓庆
Owner SHENYANG AIRCRAFT CORP