CN103386600A - Boeing aircraft airtight support plate nut installation process device and process - Google Patents
Boeing aircraft airtight support plate nut installation process device and process Download PDFInfo
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- CN103386600A CN103386600A CN2013103078893A CN201310307889A CN103386600A CN 103386600 A CN103386600 A CN 103386600A CN 2013103078893 A CN2013103078893 A CN 2013103078893A CN 201310307889 A CN201310307889 A CN 201310307889A CN 103386600 A CN103386600 A CN 103386600A
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Abstract
The invention discloses a Boeing aircraft airtight support plate nut installation process device and a Boeing aircraft airtight support plate nut installation process. A first process component is used for forming satellite holes; as the first process component is positioned in a screw hole through a coaxial positioning pin, the reference accuracy of the forming of the satellite holes is ensured; ejection iron and a rivet gun head are matched and are used for forming heads of two rivets simultaneously. Not only is the machining efficiency is improved, and the problem that after the first fastening rivet is installed, the head of the rivet extrudes and deforms the base of an airtight support plate nut, and further a rubber sealing ring can not be tightly fitted with a skin is thoroughly avoided, and the quality of the riveting of the airtight support plate nut is ensured. As the rivet gun head is guided by an axial positioning sleeve, the rivet gun head can only move in the axial direction; restraint and support on the rivet gun head in the radial direction during construction do not damage around structures due to shake, and the machining quality is further ensured.
Description
Technical field
The present invention relates to a kind of Boeing airtight plate nut mounting process equipment and technique.
Background technology
In aircraft maintenance work, fuselage radome fairing or this class of freight house wear strip for example are installed need to see through pressurizing area and usually adopt airtight plate nut fitted bolt realization connection being connected of non pressurized zone.As shown in Fig. 1 middle and upper part, the airtight plate nut 10 of this class have the sealing top (its main part) of the round table-like or ladder arched roof shape of ladder and bottom (lower end in figure) with a rubber seal 11, by the satellite hole 12 that is symmetrically distributed in screw hole 3 both sides, a side generation extruding force that after rivet, rubber seal 11 is contacted with far-end covering (inside panel) 2 is installed and compresses and produce plastic deformation, and play the effect of sealing.
Due to the instrument that airtight plate nut is installed that is specifically designed to not yet being arranged at present, the existing general utility tools such as alignment pin, riveting gun, top iron that adopt are installed fastening rivet one by one.Therefore, existing airtight plate nut flow of installation has following shortcoming:
1. first alignment pin be inserted into the corresponding screw hole of airtight plate nut 10 or mate in a securing member installing hole in satellite hole 12 via the screw hole 3 on covering or satellite hole 12 in above-mentioned technical process, utilizing the axial tension of alignment pin that airtight plate nut 10 is adjacent to far-end covering 2.Only depend on the axial tension of interference fit generation because of alignment pin, relatively little, the crimp that causes airtight plate nut base to produce because of rivet pier nose moulding meeting after first fastening rivet of installation, and the axial tension of alignment pin is not enough to overcome this distortion, the fine and close seal 11 of final guide rubber and covering laminating are not tight, and then cause pressurization gas or leak of liquid in body, bring potential safety hazard to aircraft flight.
2. the installation procedure technique of traditional airtight plate nut 10 efficiency that wastes time and energy is low.During examination, whether the worker only fits closely with covering with the rubber seal 11 of the airtight plate nut 10 of visual judgement, the inadequate rigorous and scientific of the method for inspection.Can't fundamentally guarantee the rubber seal 11 of airtight plate nut 10 and effective laminating of far-end covering 2, completing installation quality and the air-tightness of rivet after installing can't guarantee.
3. owing to varying in housing construction, common riveting gun head and top iron is for want of effectively supporter and object of reference often, can't complete simultaneously the installation of two rivets.And easily because vibrations make riveting gun head and top iron, produce significantly displacement radially and beat when riveted joint, the former usually makes near-end covering 1 surface produce pit and damage pneumatic flatness and the safety in utilization that is unfavorable for aircraft, the latter usually damages the overlay coating of airtight plate nut 10, affects airtight plate nut 10 anti-corrosion properties energy and durable usability.
4. when choosing the satellite hole 12 fastening rivets of installation around the screw hole on fuselage skin 3, after generally adopting Steel Ruler measurement size data, transfer to the position in screw hole 3 mark satellite holes 12, both sides with marking pen.This method error more greatly can't be accurately be distributed in screw hole 3 both sides with satellite hole 12 symmetries.
in addition, drill through on covering when the satellite hole 12 of fastening rivet is installed, what Structure Repair Manual required satellite hole 12 axially should be perpendicular to the covering plane, if covering is thicker, rely on merely worker's skills and experience relatively large deviation can easily occur, cause satellite hole 12 axially and covering plane out of plumb, finally cause satellite hole 12 and the fastening rivet installing hole of airtight plate nut 10 disalignment on covering, satellite hole 12 pitch-rows and the fastening rivet hole pitch-row of airtight plate nut 10 on covering are inconsistent, the lighter is installing on faying face air-tightness and the airworthiness that there will be assemblage gap and affect aircraft, severe one can cause airtight plate nut to install.
Summary of the invention
Therefore, the object of the present invention is to provide the special-purpose mounting process equipment of the airtight plate nut of a kind of Boeing, and mounting process, to improve the installation quality of airtight carriage nut.
The present invention is by the following technical solutions:
According to one aspect of the present invention, the airtight plate nut mounting process of a kind of Boeing equipment comprises:
The first technique component, has a cuboid piece, a face of this cuboid piece be provided with perpendicular to this face to be positioned the tighten up a screw coaxial positioning pin in hole of covering, and then, have the satellite hole pilot hole that a pair of axis for satellite hole drill pin drill bit guiding is parallel to the coaxial positioning pin on the cuboid piece, and two satellite hole pilot holes are symmetrical about the axis shaft of coaxial positioning pin;
The second technique component, be a top iron, and the anvil face of this top iron has the via hole at the airtight plate nut sealing of coupling top, about two satellite holes corresponding to the anvil face partial coverage of this via hole symmetry;
The 3rd technique component, comprise that one is used for passing described screw hole with the pretension bolt that connects airtight plate nut and the axial positioning sleeve that is placed on this pretension bolt screw rod, and this axial positioning sleeve is positioned at the pretension bolt bolt head place side of covering; And
The 4th technique component, have the riveting gun head in axial location hole for working face, wherein the axial location hole is directed at described axial positioning sleeve, and working face covers two satellite holes.
According to another aspect of the present invention, the airtight plate nut mounting process of a kind of Boeing comprises the following steps:
1) use positioning tool set screw hole, the positioning tool of coupling is positioned screw hole by the bearing pin with described screw hole shaft hole matching, and positioning tool has the pilot hole in coupling airtight plate nut satellite hole;
2) lead plug satellite hole, compress positioning tool in the far-end covering, guarantees that location is reliable, with a satellite guidance hole, is directed on covering to a satellite hole pore-forming, then to another satellite hole pore-forming;
3) beat counterbore, the assembling of coupling rivet, beat counterbore to the satellite hole;
4) locate airtight plate nut, airtight plate nut is sidelong to put at the far-end covering puts in place, then use a pretension bolt to connect described airtight plate nut by screw hole in near-end covering side, the described pretension bolt of pretension, make seat side end face and the laminating of far-end covering of airtight plate nut; Wherein the bolt head side of pretension bolt is equipped with axial positioning sleeve;
5) riveter nail, two rivets that mate two satellite holes, two rivet technique heads are in near-end covering side, form anvil face holding two rivets that stride across airtight plate nut sealing top in far-end covering side by top iron, and, in near-end covering side, by the riveting gun head that is directed at described axial positioning sleeve, the two rivet other ends are carried out moulding;
6) remove pretension bolt.
according to the present invention, carry out satellite hole pore-forming by the first technique component, due to the first technique component by the location of coaxial positioning pin in screw hole, guarantee the reference precision of satellite hole pore-forming, coordinate again the pier nose moulding of simultaneously two rivets being carried out manufactured head with the riveting gun head by top iron, not only improved working (machining) efficiency, and the crimp of thoroughly having stopped because of the rivet pier nose, airtight plate nut base to be produced after first fastening rivet of installation further causes rubber seal and the untight problem of covering laminating, guarantee the quality of airtight plate nut riveted joint.Because the riveting gun head is led by axial positioning sleeve, it can only in axial direction be moved, when construction, it is produced constraint and the support that footpath makes progress, can, because of vibrations to structure injury on every side, further not guarantee the quality of processing.
The airtight plate nut mounting process of above-mentioned Boeing equipment, produce damage when riveting airtight plate nut and covering for fear of covering, described the first technique component disposes neonychium at the face that is provided with the coaxial positioning pin.
The airtight plate nut mounting process of above-mentioned Boeing equipment, described neonychium gluing is mounted on corresponding surface, is convenient to change, and has certain adhesive force, guarantees carrying out smoothly of processing.
The side the end of as is provided with the leader in the side to be provided with the coaxial positioning pin for the airtight plate nut mounting process of above-mentioned Boeing equipment, described cuboid piece, the convenient cuboid piece of controlling.
The airtight plate nut mounting process of above-mentioned Boeing equipment, described top iron has three anvil faces, and wherein a pair of anvil face is parallel relatively, remainings an anvil face and parallel two anvil face quadratures, has reasonable adaptability.
The airtight plate nut mounting process of above-mentioned Boeing equipment, be communicated with the U-lag that forms top iron one termination, compact conformation corresponding to two via holes of two anvil faces of quadrature.
The airtight plate nut mounting process of above-mentioned Boeing, in step 4), before pretension bolt is installed, corresponding airtight plate nut rivet hole and the corresponding satellite hole of inserting of rivet, the corresponding aperture occurrence positions skew of satellite hole and airtight plate nut occurs while preventing the pretension bolt pretension.
The airtight plate nut mounting process of above-mentioned Boeing, in step 1), need to install additional the rubber protection pad of hardness less than covering between positioning tool and covering, so as to the protection covering.
The airtight plate nut mounting process of above-mentioned Boeing, described pretension bolt adopt torque wrench when pretension, applied force is 30LB,, in the situation that guarantee reasonable pretension, reduce the issuable damage of covering.
Description of drawings
Fig. 1 is the explosive view that cloth hole, a kind of satellite hole device is at the use state.
Fig. 2 is the adaptive explosive view of the corresponding frock of airtight plate nut mounting process.
Fig. 3 is the structural representation of a kind of many anvil faces top iron.
In figure: 1. near-end covering, 2. far-end covering, 3. screw hole, 4. coaxial positioning pin; 5. neonychium, 6. satellite hole pilot hole, 7. vertical hole guiding device, 8. cloth hole device handle; 9. many anvil faces top iron, 10. airtight plate nut, 11. rubber seal, 12. satellite holes; 13. fastening rivet, 14. axial location sleeves, 15. pretension bolts, 16. axial location holes; 17. the riveting gun head, 18. anvil face A, 19. ladder round platform grooves; 20. anvil face B, 21.U type groove, 22. anvil face C.
The specific embodiment
With reference to Figure of description 1, relate to accurately the first technique component of punching that is used for that uses, can the drill bit of punching be led, guarantee the positional precision between hole and screw hole 3, the hole here on covering, near-end covering 2 and far-end covering 1 overlapping portion as shown in Figure 1.
Should be appreciated that near-end is the orientation take airtight plate nut 10 as reference, airtight plate nut 10 sides are near-end, and opposite orientation is far-end.
Drilling tool in Fig. 1 is vertical hole guiding device 7, and its main body is a rectangular structure, and the above has pair of satellite pilot hole 6, is used for the lead plug guiding.
Should be appreciated that about the satellite hole being expressed as about screw hole 3 axles is the distribution hole in axle center.So near and, vertical hole guiding device 7 in Fig. 1 with the covering opposite face on corresponding screw hole 3 be provided with coaxial positioning pin 4, two satellite guidance holes 6 are symmetrical about the axis shaft of this coaxial positioning pin 4 so.
Coaxial positioning pin 4 is retrained by the concept of alignment pin, according to general understanding mechanically, alignment pin adopts hole pin interference fit to realize accurately location usually, can be understood as coaxial positioning pin 4 at this and coordinate and form location by corresponding hole pin with screw hole 3, the position of adjusting so vertical hole guiding device 7 just can meet the accurate location in satellite hole 12.
Coaxial steady pin 4 is vertical with the bottom surface of vertical hole guiding device 7 in Fig. 1,, as for perpendicularity, is that technique guarantees, and is more accurate better.
The lower end of coaxial steady pin 4 can be carried out chamfering or be led circle, to facilitate, it is imported screw hole 3.
In structure shown in Figure 1; also is furnished with neonychium 5; with the perforate mode of the perforate mode of neonychium 5 with screw hole 3 and satellite hole 12; corresponding with vertical hole guiding device 7; be that adhesive and the bottom surface of BMS5-95 is bonding with material number after contacting with vertical hole guiding device 7 bottom surfaces by alignment pin 4, guarantee that the top hole of neonychium 5 is coaxial with the institute's corresponding aperture on vertical hole guiding device 7.
In structure shown in Figure 1, vertical hole guiding device 7 also is furnished with the device of deploying to ensure effective monitoring and control of illegal activities handle 8, on long side surface as shown in Figure 1, vertically connects, and also can left-right symmetry connect each handles, does not affect boring.
Hold handle 8 in far-end covering 2 sides, coaxial positioning pin 4 is inserted in screw hole 3, wherein screw hole 3 coordinates for the hole axle with coaxial positioning pin 4, and radial dimension is identical, can consider based on matched in clearance, guarantees the precision of location.
Holding handle 8 rotates to proper angle; make satellite hole guide hole 6 be in the design attitude in satellite hole 7; certainly; still can not adjust vertical hole guiding device 7 if there is no handle; then firmly compress, make neonychium 5 be close to far-end covering 2, then the 40# drill jig is held on air drill;, take the satellite hole pilot hole 6 of vertical hole guiding device 7 as guiding, get out satellite hole 12 on near-end covering 1 and far-end covering 2.
Due to the most standardization of the parts on Boeing, so this paper relates to as airtight plate nut 10, is also standard component, and the parameter in corresponding satellite hole 12 is also determined, mates 40# drill bit described above and processes.
In this process; neonychium 5 quality of rubber materials hardness used is less than covering aluminum alloy material used; can guarantee can not damage covering in rotation cloth hole; satellite hole pilot hole 6 above simultaneously vertical hole guiding device 7 plays the effect of plumb; can guarantee that the satellite hole 12 that gets out is axially perpendicular to the covering plane; the spacing in two satellite holes 10 equates that with the securing member installing hole distance of the airtight plate nut of installing the securing member here corresponds to fastening rivet 13.
Behind the location of coaxial positioning pin 4, screw hole 3 is identical to the distance of screw hole with the securing member installing hole of airtight plate nut 10 with the distance in two satellite holes 12, above-mentioned two constraintss can guarantee fastening rivet 13] and the securing member installing hole of airtight plate nut 10 and the satellite hole 12 on covering have higher axiality, meet the installation of airtight plate nut 10 to guarantee the satellite hole 12 that is processed.
Erection unit and the technique of below further combined with installation and the accompanying drawing 1-3 of airtight plate nut 10, describing the airtight plate nut of Boeing.
, with reference to Fig. 2, be airtight plate nut mounting process explosive view.After satellite hole on the near-end covering is made into counter sink, after more fastening rivet 13 being passed the securing member installing hole of satellite hole 12 on covering and airtight plate nut 10, make pretension bolt 15 pass successively axial location sleeve 14 and screw hole 3 is rear with the power that screw gun or torque wrench apply 30LB, makes airtight plate nut 10 and the laminating of covering distal flat surface.
Wherein pretension bolt 15, as the part of the 3rd technique component, is used for the pre-pressing of airtight plate nut 10, naturally its screw thread should be consistent with the screw thread of airtight plate nut 10, screw rod can comprise polished rod and two parts of screw mandrel, can be also only screw mandrel.
In structure shown in Figure 2, the screw portion of pretension bolt 15 comprises screw mandrel and polished rod, wherein the polished rod part is supporting an axial positioning sleeve 14, and the bolt head by pretension bolt 15 is pressed on near-end covering 1, and the polished rod part coordinates the reliable positioning guide column of formation with axial positioning sleeve 14.
And correspondingly, contain riveting gun head 17 As shown in the lower part of Figure 2 in the 4th technique component, its working face namely its upper surface has centre bore, namely the axial location hole 16, axial location hole 16 coordinates formation guide pillar guide sleeve structure with axial positioning sleeve 14 axle sleeves, riveting gun head 17 is formed guide effect, be used for the pier nose of fastening rivet 13.
In structure shown in Figure 2, more clearly finds out,, based on the setting of symmetrical structure, makes two fastening rivets 13 be covered under the working face of riveting gun head 17 in satellite hole 12 in other words.
Corresponding to pier nose technique, be furnished with top iron in far-end covering 2 sides, in structure shown in Figure 2, the top iron that uses is many anvil faces top iron 9, has met the installation of the airtight plate nut 10 of multiple application site.
As for top iron, nature need to have anvil face, should get out of the way the sealing top of airtight plate nut 10 simultaneously, namely in as shown in Figure 2 structure except the part of base, therefore, have via hole on anvil face, to get out of the way the sealing top, the position of mating simultaneously satellite hole 12 has again the anvil face part.
In structure shown in Figure 2, many anvil faces top iron 9 has three anvil faces, wherein a pair of anvil face is parallel relatively, upper and lower surface as shown in Figure 2, remaining an anvil face and parallel two anvil face quadratures, the left surface of many anvil faces top iron 9 in Fig. 2, like this, can use different anvil faces in different positions, so that it has more application, and overall structure does not have therefore become too fat to move.
Further,, for simplified structure, as shown in Fig. 2 top, corresponding to two via holes of two anvil faces of quadrature, be communicated with the U-lag that forms top iron one termination.
Because the existence of this pretightning force makes the rubber seal 11 on airtight plate nut 10 can produce strain and touch the far-end skin-surface, and this pretightning force with finally complete airtight plate nut after the moment of required mounting screw identical, can guarantee the optimum sealing of seal washer.During applying pretightning force, the constraint that fastening rivet 13 can produce on circumferencial directions airtight plate nut 10, make it can not produce along with the frictional force between screw thread pair rotation on circumferencial direction.
Many anvil faces top iron 9 is placed in airtight plate nut 10 rears, (with reference to Fig. 3: many anvil faces top iron uses schematic diagram) can be according to position select different anvil faces near complexity, wherein ladder round platform groove 19 is removed design of material according to the profile of airtight plate nut 10, the projection of airtight plate nut 10 can be inserted wherein, and making both coaxial, this moment, anvil face A18 was as anvil face.U-shaped groove 21 is removed design of material according to the profile of airtight plate nut 10,, if anvil face A18 can't be used in present position, selects anvil face B20 or anvil face C22, as rivet, anvil face is installed by U-shaped groove 21 airtight plate nut 10 and uses.
In said process, the working face of anvil face A18, anvil face B20, anvil face C22 and riveting gun head 15 all can cover the technique head of two fastening rivets 13 simultaneously, can be simultaneously with two disposable while installation formings of rivet in the time of installation, when significantly improving operating efficiency, thoroughly stopped after first fastening rivet of installation because of rivet pier nose moulding meeting to the plate nut base produce crimp cause sealing ring and the covering laminating not tight, the potential safety hazard that causes gas and leak of liquid to cause.
Material is selected: neonychium 5 use rubber are made; coaxial positioning pin 4, vertical hole guiding device 7, cloth hole device handle 8 be common to be formed vertical cloth hole, satellite hole device coaxial positioning pin 4, vertical hole guiding device 7, cloth hole device handle 8 and adopts No. 45 steels to do, but machined one-body molded also can be under the prerequisite that guarantees precision welding production.
Many anvil faces top iron 9 adopts No. 45 steels to do, and has and processes preferably intensity and hardness.Riveting gun head 17 adopts No. 45 steels to do, and the working face that contacts with the rivet technique head adopts mirror finish to process, and to prevent that the technique head of rivet is produced damage, axial location sleeve 14 adopts the 2024-T3 aluminum alloy materials to make.
The airtight plate nut 10 mounting process engineering drawings of Boeing carry out processing and fabricating.Airtight plate nut 10 and fastening rivet 13 selection works are implemented desired Boeing standard component, and pretension bolt 15 is selected Boeing standard component BACB30VF.
Claims (10)
1. the airtight plate nut mounting process of a Boeing equipment, is characterized in that, comprising:
The first technique component, has a cuboid piece, a face of this cuboid piece be provided with perpendicular to this face to be positioned the tighten up a screw coaxial positioning pin in hole of covering, and then, have the satellite hole pilot hole that a pair of axis for satellite hole drill pin drill bit guiding is parallel to the coaxial positioning pin on the cuboid piece, and two satellite hole pilot holes are symmetrical about the axis shaft of coaxial positioning pin;
The second technique component, be a top iron, and the anvil face of this top iron has the via hole at the airtight plate nut sealing of coupling top, about two satellite holes corresponding to the anvil face partial coverage of this via hole symmetry;
The 3rd technique component, comprise that one is used for passing described screw hole with the pretension bolt that connects airtight plate nut and the axial positioning sleeve that is placed on this pretension bolt screw rod, and this axial positioning sleeve is positioned at the pretension bolt bolt head place side of covering; And
The 4th technique component, have the riveting gun head in axial location hole for working face, wherein the axial location hole is directed at described axial positioning sleeve, and working face covers two satellite holes.
2. the airtight plate nut mounting process of Boeing according to claim 1 equipment, is characterized in that, described the first technique component disposes neonychium at the face that is provided with the coaxial positioning pin.
3. the airtight plate nut mounting process of Boeing according to claim 2 equipment, is characterized in that, described neonychium gluing is mounted on corresponding surface.
4. the airtight plate nut mounting process of arbitrary described Boeing of according to claim 1 to 3 equipment, is characterized in that, the side the end of as is provided with the leader to described cuboid piece in the side to be provided with the coaxial positioning pin.
5. the airtight plate nut mounting process of Boeing according to claim 1 equipment, is characterized in that, described top iron has three anvil faces, and wherein a pair of anvil face is parallel relatively, remainings an anvil face and parallel two anvil face quadratures.
6. the airtight plate nut mounting process of Boeing according to claim 5 equipment, is characterized in that, corresponding to two via holes of two anvil faces of quadrature, is communicated with the U-lag that forms top iron one termination.
7. the airtight plate nut mounting process of Boeing, is characterized in that, comprises the following steps:
1) use positioning tool set screw hole, the positioning tool of coupling is positioned screw hole by the bearing pin with described screw hole shaft hole matching, and positioning tool has the pilot hole in coupling airtight plate nut satellite hole;
2) lead plug satellite hole, compress positioning tool in the far-end covering, guarantees that location is reliable, with a satellite guidance hole, is directed on covering to a satellite hole pore-forming, then to another satellite hole pore-forming;
3) beat counterbore, the assembling of coupling rivet, beat counterbore to the satellite hole;
4) locate airtight plate nut, airtight plate nut is sidelong to put at the far-end covering puts in place, then use a pretension bolt to connect described airtight plate nut by screw hole in near-end covering side, the described pretension bolt of pretension, make seat side end face and the laminating of far-end covering of airtight plate nut; Wherein the bolt head side of pretension bolt is equipped with axial positioning sleeve;
5) riveter nail, two rivets that mate two satellite holes, two rivet technique heads are in near-end covering side, form anvil face holding two rivets that stride across airtight plate nut sealing top in far-end covering side by top iron, and, in near-end covering side, by the riveting gun head that is directed at described axial positioning sleeve, the two rivet other ends are carried out moulding;
6) remove pretension bolt.
8. the airtight plate nut mounting process of Boeing according to claim 7, is characterized in that, in step 4), before pretension bolt is installed, corresponding airtight plate nut rivet hole and the corresponding satellite hole of inserting of rivet.
9. the airtight plate nut mounting process of Boeing according to claim 7, is characterized in that, in step 1), needs to install additional the rubber protection pad of hardness less than covering between positioning tool and covering.
10. the airtight plate nut mounting process of Boeing according to claim 7, is characterized in that, described pretension bolt adopts torque wrench when pretension, and applied force is 30LB.
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| CN201310307889.3A CN103386600B (en) | 2013-07-22 | 2013-07-22 | Boeing airtight plate nut mounting process instrument and supplies |
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| CN201310307889.3A CN103386600B (en) | 2013-07-22 | 2013-07-22 | Boeing airtight plate nut mounting process instrument and supplies |
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| CN103386600B CN103386600B (en) | 2015-09-02 |
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