Fatigue test tool for flange face fastener

A fatigue test and fastener technology, which is applied in the field of fatigue test tooling for flange surface fasteners, can solve problems such as tooling friction and inaccurate center positioning of test samples, and achieve convenient center positioning, good positioning performance, and guaranteed measurement The effect of the result

Active Publication Date: 2019-01-08
XINYANG AEROSPACE FASTENER FACTORY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides a fatigue test tool for flange surface fasteners to solve the problem of fatigue test of flange surface thin rod fasteners on the fatigue test tool of ordinary fasteners in the prior art due to the The inaccurate positioning of the center of the part leads to the technical problem of partial friction with the tooling

Method used

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  • Fatigue test tool for flange face fastener
  • Fatigue test tool for flange face fastener
  • Fatigue test tool for flange face fastener

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Experimental program
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Embodiment Construction

[0028] Such as Figure 4 to Figure 7 As shown, an embodiment of a fatigue test tool for flange surface fasteners, the fatigue test tool in this embodiment and the fatigue test tool commonly used in the prior art also include upper and lower clamps and correspondingly arranged on the upper and lower clamps The upper gasket and the lower gasket on the upper gasket are provided with a vertical center hole for the rod gap of the flange surface fastener to be tested to pass through and a method for connecting the flange surface fastener to be tested. The blue support portion supports the horizontal support surface of the press fit.

[0029] What is different from the prior art is that the test fixture in this embodiment also includes a clamping and positioning flange surface fastener 50 to be tested on the horizontal support surface of the upper gasket so that it is aligned with the vertical center of the upper gasket. A central positioning device 40 arranged coaxially with the ho...

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Abstract

The invention provides a fatigue test tool for a flange face fastener. The fatigue test tool comprises an upper gasket; the upper gasket is provided with a vertical central hole and a horizontal supporting surface; the test tool further comprises a central positioning device used for clamping and positioning the to-be-tested flange face fastener on the horizontal supporting surface to enable the to-be-tested flange face fastener to be coaxially arranged together with the vertical central hole of the upper gasket; the central positioning device is provided with a central positioning cavity forcoaxially positioning and clamping the outer cylindrical surface of a flange supporting part of the to-be-tested flange face fastener; and a positioning structure used for coaxially arranging the central positioning cavity of the central positioning device and the vertical central hole of the upper gasket is arranged between the central positioning device and the upper gasket. By virtue of the positioning structure between the central positioning device and the upper gasket, the flange face fastener is coaxially matched with the vertical central hole of the upper gasket; and the outer cylindrical surface of the flange supporting part of the flange face fastener, and a rod part are arranged coaxially, so that the rod part is effectively guaranteed not to be deviated in the vertical centralhole to cause local rubbing.

Description

[0001] This application is a divisional application of the following application, the filing date of the original application: December 15, 2015, the application number of the original application: 2015109348787, and the invention name of the original application: a fatigue test tool for flange surface fasteners. technical field [0002] The invention relates to a fatigue test tool for flange surface fasteners. Background technique [0003] With the vigorous development of the aerospace field in recent years, more and more flange-face thin rod fasteners are used in the aerospace field. The structure of this flange thin rod fastener is as follows: figure 1 , figure 2 As shown, it includes a rod body 401 and a head arranged at the front end of the rod body 401, the rear end of the rod body is provided with an external thread section 402, and the head has a force application section 403 for wrench wrenching, between the head of the fastener and the rod body There is a flange...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01N3/32
Inventor 孙美丽李新淼王智兰周明芳杨冬梅胡洋孙沛
Owner XINYANG AEROSPACE FASTENER FACTORY
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