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Device and method of detecting flange face bolt installation torque

A flange surface bolt and detection device technology, applied in the direction of measuring devices, torque measurement, power measurement, etc., can solve the problems of not being able to guarantee 100% compliance, and achieve the effects of preventing assembly quality accidents, high efficiency, and good safety

Active Publication Date: 2013-07-10
AEROSPACE PRECISION PROD INC LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, the installation torque of flange bolts is tested by sampling ratio, and it cannot be guaranteed to be 100% qualified.

Method used

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  • Device and method of detecting flange face bolt installation torque
  • Device and method of detecting flange face bolt installation torque

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Experimental program
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Embodiment Construction

[0023] Such as figure 1 , 2 As shown, the present invention provides a detection device for mounting torque of flange surface bolts, comprising a torque wrench 1, a wrench head 2 and a positioning device for fixing flange surface bolts 3, and the torque wrench 1 is provided with a wrench head The upper end of 2 is embedded in the positioning hole, and the lower end of wrench head 2 is provided with a cavity for embedding the head of flange surface bolt 3 .

[0024] The positioning device includes a gasket 4 with a through hole, a hex nut 5 located below the gasket 4 and used to be screwed on the screw of the flange surface bolt 3 and a positioning block located below the hex nut 5 and used to fix the hex nut 5 6. The through hole allows the screw to pass through. The positioning block 6 is installed in the bench vise 7. The hexagonal nut 5 can be placed in the positioning block 6, and the opposite side of the hexagonal nut 5 is used for positioning to prevent its rotation.

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PUM

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Abstract

The invention provides a method for detecting a flange face bolt installation torque by using a detector. The method includes: fixing the flange face bolt on the detector, then rotating a torque wrench of the detector, stopping twisting when the preset torque is reached through twisting, thereby reaching the purpose of detecting the flange face bolt installation torque. The method of detecting the flange face bolt installation torque break through a traditional method of detecting the flange face bolt installation torque only depending on experiment conducting in a laboratory, are good in safety, thoroughly solve the problem that products cannot be guaranteed to be qualified 100% due to the proportional sampling of the laboratory, and prevent assembly quality accidents caused by unqualified spanner screwing torque in an installation process from happening. The device and the method of detecting the flange face bolt installation torque have the advantages of being easy to operate, strong in generality, accurate in location, high in efficiency, low in detecting cost and the like.

Description

technical field [0001] The invention belongs to the field of detection of flange surface bolt installation torque, and in particular relates to a detection device and method for flange surface bolt installation torque. Background technique [0002] Flange bolts have been widely used in aviation, aerospace, ships, ordnance and other fields due to their good positioning and anti-loosening effects. Its relevant standards have special requirements for the accurate positioning, convenience, and good consistency of flange bolts. This puts very strict requirements on the installation torque of the flange bolts, and puts forward higher requirements on the processing consistency of the flange. The shape and size of the inner angle must be controlled within a very small tolerance to meet the wrenching torque during installation. requirements. In general, the installation torque of flange bolts is tested by sampling ratio, which cannot be guaranteed to be 100% qualified. Contents o...

Claims

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Application Information

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IPC IPC(8): G01L3/00B25B13/48
Inventor 黄孝庆王家明何建平江康
Owner AEROSPACE PRECISION PROD INC LTD