Large-diameter inner hole measuring tool

A measuring tool and large diameter technology, applied in the field of measuring tools, can solve problems such as measurement result deviation, and achieve the effect of reducing measurement errors

Pending Publication Date: 2017-03-15
岳阳大陆激光技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (2) Since there is no force-measuring device on the inner diameter micrometer, the measurement of the pressure depends entirely on the feel and experience of the inspector. At the same time, due to the different positions (such as tight production and loose quality inspection), measurement results are prone to appear phenomenon of deviation
If the force is too large, it is easy to aggravate the premature wear of the measuring surface

Method used

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  • Large-diameter inner hole measuring tool

Examples

Experimental program
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Effect test

Embodiment 1

[0034] see Figure 1 to Figure 4 , a large-diameter inner hole measurement tool, including an outer diameter micrometer, an adjustment part, and a measurement part

[0035] and the display section. Both the adjustment section and the display section are connected to the measurement section.

[0036] Wherein, the adjustment part includes the adjustment sleeve 1, the locking sleeve 11, the first adjustment sleeve access end 13 and the telescopic part. The telescoping part includes a second measuring head 15 and an inner diameter micrometer.

[0037] Specifically, the adjustment sleeve 1 is screwed to the bottom of the measuring part and locked by a locking sleeve 11 . The adjusting sleeve 1 is arranged at the bottom of the measuring part through a locking sleeve 11 . The bottom of the adjustment sleeve 1 is provided with a first adjustment sleeve access port 13 . The second measuring head 15 is arranged on the top of the first adjusting sleeve access end 13 . The inner dia...

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PUM

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Abstract

The invention discloses a large-diameter inner hole measuring tool. The large-diameter inner hole measuring tool comprises an outer-diameter micrometer, an adjusting part, a measuring part and a displaying part. The adjusting part and the displaying part are connected with the measuring part. The adjusting part comprises an adjusting sleeve, a locking sleeve, a first adjusting sleeve joining-in end and a retractable part. The measuring part comprises a main barrel body part, a measuring barrel, a measuring rod, a spring, a balance block and a positioning pin. The displaying part comprises a gauge lining bar, a gauge clamping barrel, a dial gauge and a clamp. When a user measures, an accurate size of an inner diameter of a large hole can be directly, instantly and accurately detected, without the need of a hand feeling; meanwhile, measuring errors caused by the fact that experience of the users is inconsistent are also reduced; and a measuring blank of an inner diameter dial gauge in a range of phi450mm-phi5000mm is filled up.

Description

technical field [0001] The invention relates to a measuring tool, in particular to a large-diameter inner hole measuring tool. Background technique [0002] In actual use, since the commonly used measuring range of the internal measuring micrometer is Ф5mm~Ф75mm, the commonly used measuring range of the three-jaw inner diameter micrometer is Ф6 mm~Ф100mm, the commonly used measuring range of the inner diameter dial indicator is Ф10mm~Ф450mm, the inner diameter percentage The common measurement range of the ruler is Ф50mm~Ф5000mm, so in the process of production, processing and quality inspection, the inner diameter of the large hole above Ф450mm can only be measured with the inner diameter micrometer. [0003] The internal diameter micrometer has the following disadvantages when measuring large holes: [0004] (1) When measuring the inner diameter micrometer, use the outer diameter micrometer to adjust to the required measurement size, put it into the diameter direction of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/12
CPCG01B5/12
Inventor 陶玮计洪侠周岳平
Owner 岳阳大陆激光技术有限公司
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