CN108943516A

CN108943516A - A kind of production method of high locked bolts seal cap

Info

Publication number: CN108943516A
Application number: CN201810682884.1A
Authority: CN
Inventors: 林伟; 郑炜; 陈龑斌; 霍玥玥
Original assignee: Xian Aircraft Industry Group Co Ltd
Current assignee: Xian Aircraft Industry Group Co Ltd
Priority date: 2018-06-27
Filing date: 2018-06-27
Publication date: 2018-12-07
Anticipated expiration: 2038-06-27
Also published as: CN108943516B

Abstract

The present invention provides a kind of production methods of high locked bolts seal cap, including a kind of mold, are made of upper die and lower die two parts, and multiple upper die and lower die are formed the mould structure of a multi-cavity mold along the corresponding uniformly distributed arrangement of length-width direction respectively.Upper mold is fixed, it will be in the female mould cavities of the injection upper mold of sealant similar in its similar chemical property of the identical or chemical analysis with package sealant, then cooperated using the circular cone die cavity of lower die, it is made of mould pressing process, when lower die surrounding has consistent seal glue extrusion, it is believed that sealant has been filled with sufficiently in the concave shaped cavity of upper mold, and seal cap is taken out after the completion of vulcanizing, surrounding is trimmed, the seal cap that as can be used.

Description

A kind of production method of high locked bolts seal cap

Technical field

This application involves airplane parts manufacturing technology field, especially a kind of production method of high locked bolts seal cap.

Background technique

In the manufacture assembling process of aircraft, fastener package is that integral tank seals a very crucial link, long Existing fastener packaging technique excessively relies on the personal operative skill of worker since phase, and failure rate is very high, and most common failure has scarce Glue, leak adhesive, bubble etc., and also most of bolts are all in less open position in the construction process, and difficulty of construction is big, quality It is not easy to guarantee, especially certain erect-positions that can only carry out package under vertical display posture, since the trickling property of glue inevitably causes Glue-line collapses or package upper-thin-lower-thick glue-line is uneven, influences sealing effect.Furthermore most of bolt heads in work progress Form it is nonstandard, same institute's bolt with a high standard due to construction personnel difference, so being the small of big size often, can not accurately estimate Glue consumption is calculated, is that exceeded application causes to waste to guarantee that scene uses often since sizing material is application refining in advance；Fastener It cannot be effectively protected after package, easily occur the contaminated situation such as being infected with aluminium skimmings, fall upper dust when carrying out subsequent handling, no Easy to clean, prior art method need to be equipped with or make by oneself a variety of gluing tool kinds according to planform due to construction environment complexity Class is various and is all that disposable waste is huge, and the glue remained in tool is not available and will also result in waste mostly, Other regions can be polluteed since glue can generate wire drawing phenomenon during gluing, the later period needs to be cleared up using solvent, worker Cleaning workload it is big, while will also result in environmental pollution.

Summary of the invention

To solve the above-mentioned problems, this application provides a kind of production methods of high locked bolts seal cap.

A kind of production method of high locked bolts seal cap includes a kind of mold, and mold is mainly by upper die and lower die two parts structure At upper mold is female mould cavities structure, is equipped with limit shaft in concave die cavity top center, bottom surface is equipped with cushion block, and lower die is ladder-like Conical mold core, core tip is equipped with a limit hole, matches with the limit shaft of upper mold, and boss is filling out for seal cap in the middle part of lower die Glue groove, upper and lower mould be bonded angle [alpha] be 30 °, manufacturing process the following steps are included:

1, respectively by multiple upper die and lower die along the corresponding uniformly distributed arrangement of length-width direction, forms the mould structure of a multi-cavity mold；

2 fix upper mold, will the note of sealant similar in its similar chemical property of or chemical analysis identical as package sealant Enter in the female mould cavities of upper mold, is then cooperated using the circular cone die cavity of lower die, made of mould pressing process, when lower die surrounding When having consistent seal glue extrusion, it is believed that sealant has been filled with sufficiently in the concave shaped cavity of upper mold, and seal cap is taken out after the completion of vulcanizing, Surrounding is trimmed, the seal cap that as can be used.

It is had the advantage that using the seal cap that this method is produced

1) it improves efficiency and package quality, so that high institute's bolt package of same specification is accomplished that standard is unified, reduce failure rate, It lays the foundation for later period automation.

2) labor intensity for reducing worker makes package work eliminate the reliance on Personal Skills, can be reached by simple training Quality requirement.

3) the non-uniform problem of glue-line caused by because of environmental influence glue being trickled is reduced.

4) can be effectively protected after bolt package if any follow-up work, greatly reduce protection it is not in place caused by The phenomenon that secondary pollution and damage are done over again.

5) it reduces using disposable gluing tool and because of serious waste caused by estimating the more application glue of inaccuracy.

Detailed description of the invention

Fig. 1 upper mold cross-sectional view

Fig. 2 lower die cross-sectional view

Fig. 3 upper and lower mould scheme of installation

Fig. 4 seal cap schematic diagram

The multiple molds of Fig. 5 are used in conjunction with figure

Explanation: 1 upper mold, 2 limit shaft, 3 female mould cavities, 4 cushion block, 5 lower die, 6 boss, 7 limit hole 8 sealing is numbered in figure Cap

Specific embodiment:

As shown in Figs. 1-5, a kind of production method of high locked bolts seal cap includes a kind of mold, and mold is mainly by upper mold 1 It is constituted with 2 two parts of lower die, upper mold 1 is 3 structure of female mould cavities, is equipped with limit shaft 2 in 3 top center of female mould cavities, bottom surface is set There is cushion block 4, lower die 5 is stair-stepping conical mold core, and core tip is equipped with a limit hole 7, matches with the limit shaft 2 of upper mold, Boss 6 is the filler groove of seal cap 8 in the middle part of lower die, and it is 30 ° that upper and lower mould, which is bonded angle [alpha], manufacturing process the following steps are included:

1, respectively by multiple upper molds 1 and lower die 5 along the corresponding uniformly distributed arrangement of length-width direction, forms the mold knot of a multi-cavity mold Structure；

2 is fixed by upper mold 1, will sealant note similar in its similar chemical property of or chemical analysis identical as package sealant Enter in the female mould cavities 3 of upper mold, is then cooperated using the circular cone die cavity of lower die 5, made of mould pressing process, when lower die 5 When surrounding has consistent seal glue extrusion, it is believed that sealant has been filled with sufficiently in the female mould cavities 3 of upper mold 1, wait take after the completion of vulcanizing Surrounding is trimmed in seal cap 8 out, the seal cap 8 that as can be used.

Usually at the scene in use, directly getting into sealant in seal cap 8, when the amount for squeezing into sealant reaches seal cap At interior filler groove, then 8 Slight rotational motion of seal cap with glue slowly and gradually fastens cap gland Part end.There is continuous glue to squeeze out along 8 periphery of seal cap, cap fix in position is until sealant is no longer from plastic hole and seal cap Until 8 squeeze out below, entire substrate holding is contacted with structure at this time, it is believed that fastener is fully sealed for the seal cap, cleaning Seal cap tip, and shaping is carried out with scraper plate to the glue that bottom is overflowed, the sealing of fastener is completed.This method is led suitable for aviation The fastener package in domain can be widely applied in multiple types and position, and this method is equally used in the package of other articles, tool There is stronger generalization.

Claims

1. a kind of production method of high locked bolts seal cap, it is characterised in that including a kind of mold, mold is mainly by upper mold under Mould two parts are constituted, and upper mold is female mould cavities structure, are equipped with limit shaft in concave die cavity top center, and bottom surface is equipped with cushion block, under Mould is stair-stepping conical mold core, and core tip is equipped with a limit hole, matches with the limit shaft of upper mold, and boss is in the middle part of lower die The filler groove of seal cap, upper and lower mould be bonded angle [alpha] be 30 °, manufacturing process the following steps are included:

1-1 forms the mould structure of a multi-cavity mold respectively by multiple upper die and lower die along the corresponding uniformly distributed arrangement of length-width direction；

1-2 fixes upper mold, will the injection of sealant similar in its similar chemical property of or chemical analysis identical as package sealant In the female mould cavities of upper mold, is then cooperated using the circular cone die cavity of lower die, made of mould pressing process, when lower die surrounding has When consistent seal glue squeezes out, it is believed that sealant has been filled with sufficiently in the concave shaped cavity of upper mold, and seal cap is taken out after the completion of vulcanizing, will Surrounding is trimmed, the seal cap that as can be used.