Auxiliary remover for rivet with head

A headed rivet and rivet technology, applied in the field of headed rivet auxiliary remover, can solve the problems of reduced fatigue capacity, aircraft skin damage, low disassembly efficiency, etc., to reduce the problem of oblique drilling, easy quality assurance, and reduced dismantling. the effect of risk

Inactive Publication Date: 2014-06-25
SHANDONG TAIKOO AIRCRAFT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the existence of the joint surface of the rivet body, the fatigue ability of the removable rivet is greatly reduced, which is contrary to the inherent properties of the rivet, and its removal efficiency is not high
[0006] Chinese patent document CN201483427U discloses a rivet removal tool for the removal of hollow rivets. It is different from the headed rivets involved in this case. The removal method is achieved by the interference fit between the removal head and the inner hole of the hollow rivet. Not applicable head rivets
This kind of dismantling punch will produce a relatively large impact force, which will cause damage to the aircraft skin

Method used

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  • Auxiliary remover for rivet with head
  • Auxiliary remover for rivet with head
  • Auxiliary remover for rivet with head

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Embodiment Construction

[0031] A headed rivet generally refers to a rivet with a rivet head, its shape is regulated, and its coaxiality with the rivet shaft is very high. The amount of round head rivets used on aircraft is very large, and a large number of hollow rivets are also used. From a wide-area perspective, the half-round head rivet is relatively the most widely used rivet at present.

[0032] Such as Figure 4 The shown rivet head 7 is a typical half-round head rivet head structure, and the other end of the corresponding rivet is the forming head of an automatic rivet machine, and the shape is not very consistent. Therefore, the removal is based on the removal of the rivet head 7 .

[0033] The nominal diameter of the rivet head 7 is greater than that of the rivet rod, so the diameter of the hole drilled by the drill bit is slightly smaller than or equal to the nominal diameter of the rivet rod.

[0034] In view of this, refer to the attached figure 1 And attached figure 2 , a head rivet...

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Abstract

The invention discloses an auxiliary remover for a rivet with a head. The auxiliary remover comprises a support which is provided with a guide hole used for guiding of a drill head, a positioning hole coaxial with the guide hole is arranged at one end of the guide hole, inner diameter of the positioning hole is larger than that of the guide hole and equal to nominal diameter of the head of the rivet, and a chip discharging structure is formed on the side face of the positioning hole. By the auxiliary remover, demounting efficiency of the rivet with the head can be improved, and removing risk can be lowered.

Description

technical field [0001] The invention relates to a tool for removing head rivets on aircraft. Background technique [0002] The head rivet is a structural fastener widely used on aircraft, mainly used for permanent riveted installation of structural components. During scheduled maintenance, when repairing, modifying or replacing parts on an aircraft, we often have to remove a large number of head rivets. [0003] In some standard removal schemes, such as in accordance with the Boeing 737 Aircraft Structure Repair Manual, when removing a head rivet, the upper surface of the rivet head should be filed flat with a file, and a positioning point should be made at the center of the rivet head with a center punch, and then Then use a drill to drill off the rivet head. During the removal, the verticality of the drill must be controlled to prevent the hole from being drilled. The overall steps are cumbersome and relatively difficult. For example, in the filing step, it is difficult t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21J15/50
Inventor 周广洲陈涛
Owner SHANDONG TAIKOO AIRCRAFT ENG
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