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Flaring test tool

A flaring test and tooling technology, used in measuring devices, instruments, scientific instruments, etc., can solve the problems of flaring amount and design flaring amount error, and achieve the effect of improving accuracy, convenient processing and improving versatility

Pending Publication Date: 2021-04-09
河南航天精工制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a flaring test tool to solve the technical problem in the prior art that the position of the flaring top core is determined by visual observation, resulting in an error between the actual flaring amount and the designed flaring amount

Method used

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Examples

Experimental program
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Effect test

specific Embodiment 1

[0040] Such as Figure 1 to Figure 7 As shown, the flaring test tool is used to quantitatively flaring the sample, which not only improves the flaring efficiency, but also ensures that the designed flaring amount is achieved. In this embodiment, the expansion of the expansion end of the expansion nut 700 by 1.2 times is taken as an example for illustration.

[0041] The flaring test tooling includes a support, which is used to position and support the flaring nut 700 and guide the top core 500 to penetrate, such as figure 1 and figure 2 As shown, the support includes an upper support 100 and a lower support 200, the upper support 100 is positioned and supported on the lower support 200 by at least two positioning pins 400, that is to say, the upper support 100 will not be horizontally opposite Translation or rotation occurs on the lower support 200 . The lower support 200 is provided with a base through hole (not marked in the figure) which penetrates up and down, and the ...

Embodiment 1

[0050] In Example 1, there are positioning holes on the base for the fitting and penetration of the sample. In this embodiment, the positioning hole may be a blind hole. When the sample is a tube / cylinder and there is no outer retaining edge, replace the positioning hole on the base with a positioning column for the tube / cylinder to fit properly.

specific Embodiment 3

[0052] In Embodiment 1, the base is separately mounted on the lower support. In this embodiment, the base can be integrally formed on the lower support, that is to say, the support part at this time can be a part of the lower support that is provided with a positioning hole or a positioning column.

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Abstract

The invention relates to a flaring test tool which comprises a support and an ejector core, the support is provided with a supporting part used for positioning and supporting a sample upwards, and an ejector core penetrating hole is formed in the position, above the supporting part, of the support; the ejector core is guided to penetrate into the ejector core through hole in the vertical direction, the ejector core comprises a flaring conical head at the lower end, the flaring conical head is used for being jacked into a sample, the sample is flared by the flaring conical head when the ejector core moves downwards relative to the sample, and the upper end of the ejector core is located above the upper end face of the support; the flaring test tool further comprises a limiting stop piece arranged on the ejector core, and the limiting stop piece is used for being in stop fit with the upper end face of the support in the vertical direction so as to limit the downward movement stroke of the ejector core relative to the sample. Before a test, the distance between the limiting stop piece and the upper end face of the support only needs to be guaranteed to be a set value, it can be guaranteed that the flaring amount of the sample is consistent with the preset flaring amount, horizontal limitation of operators is avoided, and use is more convenient.

Description

technical field [0001] The invention relates to a flaring test tooling. Background technique [0002] The diameter of the flared end must be expanded to 1.2 times the original diameter when the flaring nut for the engine is accepted. If cracks occur, it means that the flared nut has not passed the flaring test. Otherwise, it means that the flared nut has passed the flaring test. In the past, the flaring nut flaring test mainly used conical punches and presses for punching. After each punching, the flaring nut was removed and measured with a vernier caliper. If the flaring amount cannot be reached, then punch again. Until it is qualified, this method is inefficient and the flaring size is difficult to guarantee. This problem exists not only for flared nuts, but also for other samples that need to be flared. [0003] For this reason, the Chinese utility model patent whose authorized announcement number is CN204613020U discloses a kind of universal material testing machine tu...

Claims

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Application Information

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IPC IPC(8): G01N3/02G01N3/04
CPCG01N3/02G01N3/04
Inventor 刘前峰屈明亮安蒙石大鹏付建建谢茂阳何坤李蓓蕾张瑜萍
Owner 河南航天精工制造有限公司
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