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Method for measuring small hole diameter by using of dial indicator

A dial indicator and hole diameter technology, applied in the direction of mechanical diameter measurement, etc., can solve the problems of inaccurate measurement, great influence on measurement results, inconvenient measurement of taper holes, etc. high precision effect

Active Publication Date: 2013-04-24
ZHENJIANG DONGYI MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally, small holes are measured by calipers or inner micrometers, which are inaccurate. Human factors have a great influence on the measurement results, and it is even more inconvenient to measure tapered holes. Modern high-precision small holes are measured by video instruments, three-coordinates, etc. Advanced measuring equipment, but this kind of measurement is difficult to achieve on-line measurement of production

Method used

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  • Method for measuring small hole diameter by using of dial indicator

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Embodiment Construction

[0016] The present invention will be further explained below in conjunction with the drawings and embodiments:

[0017] Such as figure 1 As shown in figure 1 The small hole quick and accurate measuring device dial indicator 1, the taper measuring mandrel 3 and the frame 2 shown in the figure. The taper measuring mandrel 3 is a tapered rod with a thick one end and a thin end, and the thick end of the taper measuring mandrel 3 is connected to the Dial indicator 1, as the measuring rod of dial indicator 1, the frame 2 is provided with a hole, the taper measuring mandrel 3 can pass through the hole, 4 is the workpiece to be measured, and the spring 7 is arranged on the At the bottom end of the lower probe 5, the operating rod 6 is movably connected with the lower probe 5, and the height of the lower probe 5 can be adjusted.

[0018] The measurement method includes the following steps:

[0019] 1) Connect the dial indicator and the taper measuring mandrel to form a small hole measuring...

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Abstract

The invention discloses a method for measuring a small hole diameter by using of a dial indicator. The method includes the following steps: connecting the dial indicator and a conic degree measuring mandrel rod to manufacture a small hole measuring device, and using the conic degree measuring mandrel rod as a measuring bar of the dial indicator; and installing the measuring mandrel rod, checking measuring original points of the dial indicator by using a check gauge, and then measuring the inner diameter of a workpiece. The method for measuring the small hole diameter by using of the dial indicator has the advantages that measurement is simple and convenient and easy to operate, measurement accuracy is high, on-line measurement can be carried out, and work efficiency of batch measurement is greatly improved.

Description

Technical field [0001] The invention belongs to the technical field of size measurement, and specifically relates to a method for measuring the diameter of a small hole with a dial indicator. Background technique [0002] Generally, small holes are measured by calipers or inner diameter micrometers. The measurement is inaccurate. Human factors have a great influence on the measurement results. It is even more inconvenient for the measurement of taper holes. Modern high-precision small holes are measured by imagers, three coordinates, etc. Advanced measuring equipment, but this kind of measurement is difficult to achieve online production measurement. Summary of the invention [0003] The purpose of the present invention is to provide a method for measuring the diameter of a small hole with a dial indicator in view of the above-mentioned shortcomings in the prior art, which can conveniently measure the size of the small hole online. [0004] The technical solution adopted by the pre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/08
Inventor 陈立军
Owner ZHENJIANG DONGYI MACHINERY