CN204152931U - A kind of not damaged assembling fastening piece being adapted to composite structure - Google Patents
A kind of not damaged assembling fastening piece being adapted to composite structure Download PDFInfo
- Publication number
- CN204152931U CN204152931U CN201420513613.0U CN201420513613U CN204152931U CN 204152931 U CN204152931 U CN 204152931U CN 201420513613 U CN201420513613 U CN 201420513613U CN 204152931 U CN204152931 U CN 204152931U
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- supporting plate
- fastening piece
- nut
- hole
- composite structure
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Abstract
The utility model relates to a kind of not damaged assembling fastening piece being adapted to composite structure, it comprises nut, clip, supporting plate, the collar and pull bar, wherein the base plate center of supporting plate has the flange hole extended to base plate side, opposite side is provided with perpendicular to bottom board symmetry the auricle that two have through hole, the base plate of supporting plate is also arranged with two boss, pull bar is column structure, and one end is that diameter increases end; Before fastening piece is installed; nut is placed on supporting plate; two boss are for limiting base plate the moving about on supporting plate of nut; hoop sleeve to be contained on nut and to be fixed by the through hole on two auricles; the collar coordinates with the flange hole of supporting plate and is arranged in the fastener hole of composite structure; the diameter of pull bar increases end and is arranged in the flange hole of supporting plate; the installation of fastening piece is realized by stretching pull bar; this assembling fastening piece installation efficiency is high; can install on arbitrary surface; with composite material hole compact siro spinning technology, and play a protective role, prevent layering.
Description
Technical field
The utility model relates to a kind of not damaged assembling fastening piece being adapted to composite structure, is applicable to composite material not damaged and installs, belong to anatomical connectivity technical field.
Background technique
There is a large amount of narrow space region in Flight Vehicle Structure, needs to adopt one side mounting fastener implementation structure to connect.For composite structure, traditional plate nut can not be used, because traditional plate nut needs to install rivet with fixing plate nut on composite structure, but can destroy structure at Reusable launch vehicles composite structure application rivet, cause tapping layering, produce initial crack.Therefore need to develop a kind of plate nut that be fixedly connected with without the need to rivet, that be applicable to composite structure.
According to documentary investigation, current domestic correlation technique connects mainly in Structural Hardware, can not be used for composite structure and connect.
Model utility content
The purpose of this utility model is the above-mentioned deficiency overcoming prior art; a kind of not damaged assembling fastening piece being adapted to composite structure is provided; this assembling fastening piece installation efficiency is high; without the need to counter boring on composite material parts hole; can install on arbitrary surface; with composite material hole compact siro spinning technology, and play a protective role, prevent layering.
Above-mentioned purpose of the present utility model is mainly achieved by following technical solution:
A kind of not damaged assembling fastening piece being adapted to composite structure, comprise nut, clip, supporting plate, the collar and pull bar, wherein clip is that straightway bending forms and the close hatch frame in two ends, one end of nut is with base plate, the base plate center of supporting plate has the flange hole extended to base plate side, opposite side is provided with two auricles perpendicular to bottom board symmetry, two auricles is respectively provided with a through hole, the base plate of supporting plate is also arranged with two boss; Pull bar is column structure, and one end is that diameter increases end; Before fastening piece is installed, nut is placed on supporting plate, two boss are for limiting base plate the moving about on supporting plate of nut, hoop sleeve to be contained on nut and to be fixed by the through hole on two auricles, the collar coordinates with the flange hole of supporting plate and is arranged in the fastener hole of composite structure, the diameter of pull bar increases end and is arranged in the flange hole of supporting plate, is realized the installation of fastening piece by stretching pull bar.
Be adapted in the not damaged assembling fastening piece of composite structure above-mentioned, the through hole on two auricles of supporting plate is rectangular hole.
Be adapted in the not damaged assembling fastening piece of composite structure above-mentioned, nut comprises the annular boss structure that base plate and base plate extend.
Be adapted in the not damaged assembling fastening piece of composite structure above-mentioned, flange hole outside is designed with thrust or groove, for increasing the connection frictional force between the collar and supporting plate.
Be adapted in the not damaged assembling fastening piece of composite structure above-mentioned, nut selects self-locking nut or detachable nut structure according to demand.
Be adapted in the not damaged assembling fastening piece of composite structure above-mentioned, the collar is two-stage cascade ring or three grades of cascade rings.
The utility model compared with prior art has following beneficial effect:
(1), the utility model has carried out innovative design to assembling fastener constructions; comprise nut, clip, supporting plate, the collar and pull bar; supporting plate fastener hole generation radial expansion is made by pull bar during installation; fastening with the collar; by cover ring protection composite material hole wall; simultaneously collar end produces distortion and plays and hole compact siro spinning technology effect when pull bar pulls out; this fastening piece installation efficiency is high; without the need to counter boring on composite material parts hole; can install on arbitrary surface; with composite material hole compact siro spinning technology, and play a protective role, prevent layering.
(2), the utility model fastening piece nut and the supporting plate that adopt can dismantle, and needs to change dissimilar nut to realize lid quick-detachment and the connection of cold and hot structure as dismountable according to different designs, applied widely, practical;
(3), the utility model realizes application on composite structure and, without riveting support plate nut, and prevents the layering of composite material tapping, and the nut that fastening piece adopts can float, and can improve installation precision as required, realizes highi degree of accuracy installation;
(4), the utility model in order to effectively improve the compact siro spinning technology in closure system and composite structure hole, surface treatment can be done with increasing friction force at collar outer wall, fastener hole will not make taper to realize the fixing of fastening piece Vertical direction;
(5), the utility model is optimized design to fastener components structure and material and makes whole closure system lighter.
Accompanying drawing explanation
Fig. 1 is the utility model assembling fastener constructions schematic diagram;
Fig. 2 is the utility model assembling fastener constructions part explosive view;
Fig. 3 is support board structure schematic diagram in the utility model assembling fastening piece;
Fig. 4 is thimble structure schematic diagram in the utility model assembling fastening piece, and wherein Fig. 4 a, 4b is respectively the collar of two kinds of different structure forms;
Fig. 5 is yoke configurations schematic diagram in the utility model assembling fastening piece;
Fig. 6 is nut structure schematic diagram in the utility model assembling fastening piece;
Fig. 7 is that in the utility model assembling fastening piece, nut, clip and supporting plate assemble schematic diagram;
Fig. 8 is the utility model assembling fastening piece original state schematic diagram;
Fig. 9 is that intermediateness schematic diagram installed by the utility model assembling fastening piece;
Figure 10 is the utility model assembling fastening piece installation view.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Be illustrated in figure 1 the utility model assembling fastener constructions schematic diagram, Fig. 2 is the utility model assembling fastener constructions part explosive view, assembles fastening piece as seen from the figure and comprises nut 1, clip 2, supporting plate 3, the collar 4 and pull bar 5.
Be illustrated in figure 3 support board structure schematic diagram in the utility model assembling fastening piece, the base plate center of supporting plate 3 has the flange hole 10 extended to base plate side as seen from the figure, flange hole 10 outside is designed with thrust or groove, for increasing the connection frictional force between the collar 4 and supporting plate 2.Opposite side is provided with two auricles perpendicular to bottom board symmetry, two auricles is respectively provided with a through hole 12, and in the present embodiment, through hole is rectangular hole, in order to fixing hoop 2.The base plate of supporting plate 3 is also arranged with two boss 11, in order to limit nut 1 moving about on supporting plate 3.
Be illustrated in figure 4 thimble structure schematic diagram in the utility model assembling fastening piece, wherein Fig. 4 a, 4b is respectively the collar 4 of two kinds of different structure forms, wherein Fig. 4 a is secondary cascade ring, and Fig. 4 b is three grades of cascade rings, and the collar 4 is sleeved on outside the bulge loop in supporting plate 2 lower flange hole 10.
Be illustrated in figure 5 yoke configurations schematic diagram in the utility model assembling fastening piece, clip 2 forms and the close hatch frame in two ends for straightway bending, and clip 2 is designed with opening end, and permission can repeated removal nut 1.
Be illustrated in figure 6 nut structure schematic diagram in the utility model assembling fastening piece, nut 1 comprises the annular boss structure that base plate 15 and base plate 15 extend.
Pull bar 5 is column structure, and one end is that diameter increases end.
Before installing, nut 1, clip 2, supporting plate 3 and the collar 4 is whole assembly, assembly and composite structure 6 fastener hole are fixed, by instrument stretching pull bar 5, the flange hole 10 of supporting plate 3 and the collar 4 expand and composite structure 6 fastening piece hole wall realizes being fastenedly connected, and complete the installation of closure system.Nut 1 can select self-locking nut or detachable nut structure according to mission requirements, and the titanium alloy material that supporting plate 3 and the collar 4 adopt ductility good, high hardness alloy Steel material selected by pull bar 5.
The concrete installation process of the utility model assembling fastening piece is as follows:
Be illustrated in figure 8 the utility model assembling fastening piece original state schematic diagram, before fastening piece is installed, nut 1 is placed on supporting plate 3, two boss 11 are for limiting base plate 15 the moving about on supporting plate 3 of nut 1, clip 2 to be sleeved on nut 1 and to be fixed by the through hole 3 on two auricles, the collar 4 coordinates with the flange hole 10 of supporting plate 3 and is arranged in the fastener hole of composite structure, and the diameter of pull bar 5 increases end and is arranged in the flange hole 10 of supporting plate 3.Be illustrated in figure 7 nut, clip and supporting plate in the utility model assembling fastening piece and assemble schematic diagram.
Be illustrated in figure 9 the utility model assembling fastening piece and install intermediateness schematic diagram, stretching pull bar 5, pull bar 5 upper end is that diameter increases end, extrudes supporting plate 3 pipe flange hole 10 inwall, supporting plate 3 pipe flange hole 10 inwall is expanded by pull bar 5.The extruding collar 4 after supporting plate 3 pipe flange hole 10 inwall expands; (be increasing friction force by frictional force; supporting plate 3 pipe flange hole 10 outer wall surface processes groove or thrust) supporting plate 3 is connected with the collar 4 is fastening; fastener openings hole wall simultaneously by using the collar 4 to protect composite structure, prevents layering.
Be the utility model assembling fastening piece installation view as shown in Figure 10, pull bar 5 pulls out from fastening piece, the collar 4 adopted in Figure 10 is the thimble structure of Fig. 4 (a), when adopting the thimble structure of Fig. 4 (b), the collar 4 end expands, extrude with the fastening piece hole wall of composite structure 6, at this moment the hole wall generation layering of composite structure 6 is prevented by tolerance and size design, in order to effectively improve the compact siro spinning technology in closure system and composite structure hole, surface treatment can be done with increasing friction force at the collar 4 outer wall.Fastener hole will not make taper to realize the fixing of fastening piece Vertical direction.
The content be not described in detail in the utility model specification belongs to the known technology of professional and technical personnel in the field.
Claims (6)
1. one kind is adapted to the not damaged assembling fastening piece of composite structure, it is characterized in that: comprise nut (1), clip (2), supporting plate (3), the collar (4) and pull bar (5), wherein clip (2) forms and the close hatch frame in two ends for straightway bending, one end of nut (1) is with base plate (15), the base plate center of supporting plate (3) has the flange hole (10) extended to base plate side, opposite side is provided with two auricles perpendicular to bottom board symmetry, two auricles are respectively provided with a through hole (12), the base plate of supporting plate (3) is also arranged with two boss (11), pull bar (5) is column structure, and one end is that diameter increases end, before fastening piece is installed, nut (1) is placed on supporting plate (3), two boss (11) are for limiting base plate (15) the moving about on supporting plate (3) of nut (1), clip (2) is sleeved on nut (1) and goes up and pass through through hole (3) on two auricles and fix, the collar (4) coordinates with the flange hole (10) of supporting plate (3) and is arranged in the fastener hole of composite structure (6), the diameter of pull bar (5) increases end and is arranged in the flange hole (10) of supporting plate (3), the installation of fastening piece is realized by stretching pull bar (5).
2. a kind of not damaged assembling fastening piece being adapted to composite structure according to claim 1, is characterized in that: the through hole on two auricles of described supporting plate (3) is rectangular hole.
3. a kind of not damaged assembling fastening piece being adapted to composite structure according to claim 1, is characterized in that: described nut (1) comprises the annular boss structure that base plate (15) and base plate (15) extend.
4. a kind of not damaged assembling fastening piece being adapted to composite structure according to claim 1, it is characterized in that: described flange hole (10) outside is designed with thrust or groove, for increasing the connection frictional force between the collar (4) and supporting plate (2).
5. a kind of not damaged assembling fastening piece being adapted to composite structure according to claim 1, is characterized in that: described nut (1) selects self-locking nut or detachable nut structure according to demand.
6. a kind of not damaged assembling fastening piece being adapted to composite structure according to claim 1, is characterized in that: the described collar (4) is two-stage cascade ring or three grades of cascade rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420513613.0U CN204152931U (en) | 2014-09-05 | 2014-09-05 | A kind of not damaged assembling fastening piece being adapted to composite structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420513613.0U CN204152931U (en) | 2014-09-05 | 2014-09-05 | A kind of not damaged assembling fastening piece being adapted to composite structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204152931U true CN204152931U (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420513613.0U Active CN204152931U (en) | 2014-09-05 | 2014-09-05 | A kind of not damaged assembling fastening piece being adapted to composite structure |
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| CN (1) | CN204152931U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019059226A (en) * | 2017-07-26 | 2019-04-18 | ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ | Integral nut holding cradle for nut plate assembly, and manufacturing method using additive manufacture |
| CN109822926A (en) * | 2019-03-11 | 2019-05-31 | 浙江众泰汽车制造有限公司 | CFRP/ metallic composite connection structure and its processing tool and processing method |
-
2014
- 2014-09-05 CN CN201420513613.0U patent/CN204152931U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019059226A (en) * | 2017-07-26 | 2019-04-18 | ザ・ボーイング・カンパニーＴｈｅ Ｂｏｅｉｎｇ Ｃｏｍｐａｎｙ | Integral nut holding cradle for nut plate assembly, and manufacturing method using additive manufacture |
| JP7278038B2 (en) | 2017-07-26 | 2023-05-19 | ザ・ボーイング・カンパニー | Integral Nut Retaining Cradle for Nut Plate Assembly and Manufacturing Method Using Additive Manufacturing |
| CN109822926A (en) * | 2019-03-11 | 2019-05-31 | 浙江众泰汽车制造有限公司 | CFRP/ metallic composite connection structure and its processing tool and processing method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |