Force moment measuring device and usage thereof

A technology of torque measurement and torque wrench, applied in the direction of torque/torsional force when tightening, can solve the problem of not being able to guarantee 100% qualified, and achieve the effect of eliminating installation quality accidents, easy operation and high efficiency

Inactive Publication Date: 2012-09-12
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 the cross recessed screw is tested by the sampling ratio, and it cannot be guaranteed to be 100% qualified.

Method used

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  • Force moment measuring device and usage thereof
  • Force moment measuring device and usage thereof
  • Force moment measuring device and usage thereof

Examples

Experimental program
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Effect test

Embodiment Construction

[0022] The present invention will be further elaborated below in conjunction with the accompanying drawings. Such as figure 1 As shown, the present invention is a torque measuring device, comprising a positioning block 2, a hexagonal nut 4, a cross-recessed punch 6, and a torque wrench 7, such as figure 2 As shown, the upper end surface of the positioning block 2 has a groove 21 for placing a hex nut, and a through hole 22 is opened on its lower end surface, the groove 21 is connected with the through hole 22, and the positioning block 2 is also provided with two mutually parallel Clamping surface 23, the clamping surface 23 is symmetrical with respect to the central axis of the through hole 22 on the positioning block 2, the clamping surface 23 and the upper end surface of the positioning block are vertically intersected, in order to make the hexagonal nut 4 position, prevent its rotation, the hexagonal Position the nut 4 and prevent the hexagonal nut 4 from rotating. The c...

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PUM

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Abstract

The invention provides a force moment measuring device and the usage thereof. The device comprises a hexagon nut, a cross-recessed punch, a torque wrench and a positioning block. A cross-recessed screw is screwed onto the hexagon nut, a cross punch head of the cross-recessed punch is positioned in a cross recess of the cross-recessed screw, and the tail of the cross-recessed punch is positioned in a positioning hole of the torque wrench. The upper end face of the positioning bock is provided with a groove for holding the hexagon nut, the lower end face of the positioning block is provided with a through hole communicated with the groove, the positioning block is further provided with two parallel clamping faces which are symmetric relative to the central axis of the through hole on the positioning block, the two clamping faces are perpendicularly intersected with the upper end face of the positioning block, and the hexagon nut is clamped in the groove of the positioning block. The force moment measuring device has the advantages that by means of the technical scheme, unqualified products can be rejected, the requirement on 100% qualified cross-recessed screws can be met, and the force moment measuring device is easy to operate, low in cost and high in efficiency.

Description

technical field [0001] The invention relates to a measuring device for detecting whether a fastener reaches the standard, in particular to a measuring device for whether the installation torque of the cross groove of a cross-recessed screw reaches the standard and a method for using the device. Background technique [0002] Phillips screws have been widely used in aviation, aerospace, shipbuilding, electronics, defense and other fields due to their good positioning and anti-loosening effects. Its relevant standards have special requirements for accurate positioning, convenience, and good consistency of cross-recessed screws. This requires very strict requirements on the torque of the cross-recess of the cross-recessed screw, and puts forward high requirements on the processing consistency of the cross-recess. The shape and size of the cross-recess must be controlled within a very strict tolerance range to meet the installation requirements. When the wrench torque requiremen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/24
Inventor 王家明江康吕华念
Owner AEROSPACE PRECISION PROD INC LTD
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