CN107933030B - Fiber reinforced composite material sandwich plate structure with lock catch - Google Patents
Fiber reinforced composite material sandwich plate structure with lock catch Download PDFInfo
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- CN107933030B CN107933030B CN201711351471.7A CN201711351471A CN107933030B CN 107933030 B CN107933030 B CN 107933030B CN 201711351471 A CN201711351471 A CN 201711351471A CN 107933030 B CN107933030 B CN 107933030B
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- lock catch
- fiber
- sandwich plate
- embedded part
- reinforced composite
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- 239000003733 fiber-reinforced composite Substances 0.000 title claims abstract description 24
- 239000000463 material Substances 0.000 title claims description 26
- 239000000835 fiber Substances 0.000 claims description 57
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 10
- 239000004917 carbon fiber Substances 0.000 claims description 10
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 239000003822 epoxy resin Substances 0.000 claims description 5
- 229920000647 polyepoxide Polymers 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000013329 compounding Methods 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000006260 foam Substances 0.000 claims description 2
- 238000003466 welding Methods 0.000 abstract description 4
- 239000010410 layer Substances 0.000 description 56
- 239000002131 composite material Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000011229 interlayer Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/02—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions
- B32B3/08—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by features of form at particular places, e.g. in edge regions characterised by added members at particular parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Road Paving Structures (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a fiber reinforced composite sandwich plate structure with a lock catch, which comprises a sandwich plate made of fiber reinforced composite, an embedded part preset in the sandwich plate, a lock catch base arranged outside the sandwich plate and detachably connected with the embedded part, and a lock catch arranged on the lock catch base. The invention can ensure that the lock catch can still be fixedly installed with the fiber reinforced composite sandwich plate without welding, ensures certain connection strength and meets the locking requirements of automobile covering parts under different working conditions.
Description
Technical Field
The invention relates to a closure member with a lock catch, in particular to a fiber reinforced composite material sandwich plate structure with a lock catch, which can be applied to closure members with lock catches, such as a hood, a door, a trunk cover and the like of engineering machinery, such as an automobile, an airplane and the like.
Background
In recent years, with the gradual increase of automobile reserves and the further more serious climate change problem, the importance of environmental protection and reasonable energy utilization has been recognized from the country to automobile manufacturers. For the automobile industry, especially when new energy automobiles are vigorously developed in various countries, realizing the light weight of the automobiles becomes a necessary way for the sustainable development of the industry. Carbon fiber composite materials are highly expected for the weight reduction of automobiles because of their excellent overall performance. Compared with materials such as high-strength steel, aluminum alloy and the like applied to the current automobile, the specific gravity of the carbon fiber composite material is lower than that of the aluminum alloy and is far lower than that of the high-strength steel under the same strength. Besides the advantage of light weight, the carbon fiber composite material also has the excellent performances of high strength, high modulus, corrosion resistance, high temperature resistance and the like. It follows that the use of carbon fibre composite materials in the automotive industry has great potential.
Although the application prospect of the carbon fiber composite material in automobiles is wide, some problems still remain to be solved at present. As in the conventional manufacture of automobile panels, the material used is mainly steel, so that one of the connection modes of the panel and its accessories (such as a lock catch) is welding. After the fiber reinforced composite material is adopted, the metal lock catch cannot be welded with the carbon fiber sandwich plate, and the traditional connection mode cannot adapt to the requirement of novel application, so that a new connection and installation mode of the covering part and accessories thereof is necessary to be provided, and the fiber reinforced composite material is further popularized and applied in the automobile industry.
Disclosure of Invention
In order to overcome the defect that the traditional welding technology is not suitable for connecting the fiber reinforced composite material interlayer plate automobile covering part and accessories thereof, the invention provides a fiber reinforced composite material interlayer plate structure with a lock catch, which can ensure that the lock catch can still be fixedly installed with the fiber reinforced composite material interlayer plate under the condition of not adopting welding, ensure certain connecting strength and meet the locking requirements of the automobile covering part under different working conditions.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the utility model provides a take fibre reinforced composite sandwich plate structure of hasp, includes by the sandwich panel of fibre reinforced composite preparation, predetermine and be in built-in fitting, setting in the sandwich panel are in outside the sandwich panel and with the hasp base that the connection can be dismantled to the built-in fitting and install hasp on the hasp base.
According to the technical scheme, the embedded part is provided with a plurality of screw holes, and the lock catch base is fixedly arranged on the embedded part through bolts matched with the screw holes.
According to the technical scheme, the sandwich plate comprises a sandwich layer and fiber layers glued to the upper end and the lower end of the sandwich layer, the embedded part is arranged in the sandwich layer, and the lock catch base is in contact with one of the fiber layers.
According to the technical scheme, the fiber layer is formed by compounding the carbon fiber reinforced material and the epoxy resin matrix, and the sandwich layer is made of the foamed plastic material.
According to the technical scheme, the thickness of the contact area of the fiber layer, the embedded part and the lock catch base is larger than that of other areas.
According to the technical scheme, the fiber layer is formed by multiple fiber layers, and the number of the fiber layers in the contact area of the fiber layer, the embedded part and the lock catch base is larger than that of the fiber layers in other areas.
According to the technical scheme, the upper end face and the lower end face of the embedded part are respectively attached to the inner surface of the fiber layer, and a cementing layer is arranged between the embedded part and the fiber layer.
According to the technical scheme, the contact area of the embedded part and the fiber layer positioned at one end of the lock catch base is smaller than that of the other fiber layer.
According to the technical scheme, the lock catch is a metal lock catch.
The invention has the following beneficial effects: according to the invention, the embedded part is preset in the fiber reinforced composite sandwich plate, so that the embedded part and the sandwich plate are fixed into a whole, then the lock catch base with the lock catch is fixedly arranged on the embedded part, thus the fixed connection of the lock catch and the fiber reinforced composite sandwich plate is completed, when the lock catch is subjected to additional load, the applied additional load can be transmitted to the whole sandwich plate through the connection relation among all the parts, and the reliability of the lock catch in use is ensured.
According to the invention, the installation connection relationship between two parts made of different materials is realized by presetting the embedded parts, so that the installation requirement between the closure part and accessories thereof can be still met under the condition that the novel composite material is used for replacing the traditional steel material to manufacture the closure part such as an automobile covering part, and the locking problem of the automobile covering part made of the fiber reinforced composite material is particularly solved; in addition, the embedded part and the sandwich plate are integrally formed, so that subsequent processing procedures can be reduced, and the lock catch and the embedded part are detachably connected, so that the installation and the replacement of the lock catch after the sandwich plate is formed are very convenient. The invention plays a promoting role in applying the fiber reinforced composite material sandwich plate on an automobile covering part, and further assists the automobile industry to improve the lightweight design level so as to realize energy conservation and emission reduction.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a top view of an embodiment of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a side view of an embodiment of the present invention.
In the figure: 1-lock catch, 2-lock catch base, 3-bolt, 4-sandwich plate, 4.1-upper fiber layer, 4.2-sandwich layer, 4.3-lower fiber layer, 5-embedded part, 5.1-embedded part upper end, 5.2-embedded part lower end, 5.3-screw hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 to 3, a fiber reinforced composite sandwich plate structure with a lock catch comprises a sandwich plate 4 made of a fiber reinforced composite material, an embedded part 5 preset in the sandwich plate 4, a lock catch base 2 arranged outside the sandwich plate 4 and detachably connected with the embedded part 5, and a lock catch 1 installed on the lock catch base 2, wherein the lock catch is a metal lock catch.
In the preferred embodiment of the present invention, as shown in fig. 1 and 2, a plurality of screw holes 5.3 are provided on the embedded part 5, and the locking base 2 is fixedly mounted on the embedded part 5 by bolts 3 configured with the screw holes. Thus, on one hand, the sandwich plate is convenient to be installed with the lock catch base together after being formed, on the other hand, the lock catch and the sandwich plate are more reliably connected through threaded connection, and compared with the connection mode which only adopts adhesion, the connection mode is more ideal. The quantity of screw is 2 in this embodiment, and the symmetrical arrangement is in the both sides of hasp. The lock catch base is connected with the embedded part through a bolt, so that the installation and replacement of the lock catch after the sandwich plate is formed are facilitated.
In a preferred embodiment of the invention, as shown in fig. 1-3, the sandwich panel 4 comprises a sandwich layer 4.2 and fiber layers (an upper fiber layer 4.1 and a lower fiber layer 4.3) glued to the upper and lower ends of the sandwich layer, an embedded part 5 is arranged in the sandwich layer, and the latch base 2 is in contact with one of the fiber layers (the upper fiber layer 4.1). The fiber layer is formed by compounding a carbon fiber reinforced material and an epoxy resin matrix, specifically, the carbon fiber is used as the reinforced material, the epoxy resin is used as the matrix material, a laminated plate structure is formed by curing the carbon fiber reinforced material and the epoxy resin, and the material adopted by the sandwich layer is mainly foam plastic. A cementing layer is arranged between the fiber layer and the sandwich layer, the upper fiber layer and the lower fiber layer are cemented together, so that the performance of the sandwich plate is further improved.
In the preferred embodiment of the present invention, as shown in fig. 2, in order to meet the requirements of different areas of the sandwich plate for mechanical properties, the fiber layers in the areas near the contact surfaces of the fiber layers and the embedded parts and the areas near the contact surfaces of the fiber layers and the lock catch bases are reinforced, that is, the thickness of the contact areas of the fiber layers, the embedded parts and the lock catch bases is greater than that of the other areas. The fiber layers are not of equal thickness in the following mode: the fiber layer is formed by multiple fiber layers, and the number of the fiber layers in the contact area of the fiber layer, the embedded part and the lock catch base is larger than that of the fiber layers in other areas.
In the preferred embodiment of the invention, as shown in fig. 2, the upper and lower end faces of the embedded part (the upper end 5.1 of the embedded part and the lower end 5.2 of the embedded part) are respectively attached to the inner surface of the fiber layer, and sudden change of the surface of the sandwich panel is not caused in the arrangement region of the embedded part, so that on one hand, the molding requirement of the surface of the sandwich panel can be ensured, and on the other hand, stress concentration caused in the sudden change region can also be avoided. The cementing layer is arranged between the embedded part and the fiber layer, the areas of the upper cementing layer area and the lower cementing layer area are designed to be unequal according to the stress condition, the contact area of the embedded part and the upper fiber layer area is smaller than that of the lower fiber layer area, the embedded part is of an asymmetric structure in the thickness direction of the interlayer plate, the stress condition of the whole structure is considered by the material layout, and the light design requirement is also considered. Because the lock catch is mainly under the action of tension and pressure in the service life of the lock catch, when the lock catch is pulled, the upper fiber layer and the lower fiber layer of the sandwich plate are easily stripped, so that the lower end face of the embedded part is designed to be larger, and the stripping of the fiber layers of the sandwich plate is avoided when the lock catch is pulled.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (6)
1. A fiber reinforced composite material sandwich plate structure with a lock catch is characterized by comprising a sandwich plate made of fiber reinforced composite material, an embedded part preset in the sandwich plate, a lock catch base arranged outside the sandwich plate and detachably connected with the embedded part, and a lock catch arranged on the lock catch base;
the sandwich plate comprises a sandwich layer and fiber layers which are glued at the upper end and the lower end of the sandwich layer, the embedded part is arranged in the sandwich layer, and the lock catch base is in contact with one of the fiber layers;
the embedded part is provided with a plurality of screw holes, the lock catch base is fixedly arranged on the embedded part through bolts matched with the screw holes, the upper end face and the lower end face of the embedded part are respectively attached to the inner surface of the fiber layer, and a cementing layer is arranged between the embedded part and the fiber layer.
2. The latched fiber-reinforced composite sandwich plate structure of claim 1, wherein the fiber layer is formed by compounding a carbon fiber reinforced material and an epoxy resin matrix, and the sandwich layer is made of a foam plastic material.
3. The latched fiber reinforced composite sandwich panel structure of claim 1, wherein the fiber layers have a thickness greater in the areas in contact with the embedment and the latch base than in other areas.
4. The fiber reinforced composite sandwich plate structure with the lock catch of claim 3, wherein the fiber layers are formed by multiple fiber layers, and the number of the fiber layers in the contact area of the fiber layers, the embedded part and the lock catch base is larger than that of the fiber layers in other areas.
5. The latched fiber-reinforced composite sandwich plate structure of claim 1, wherein the embedment has a smaller contact area with the fiber layer at one end of the latch base than with another fiber layer.
6. The fiber reinforced composite sandwich plate structure of claim 1, wherein the latch is a metal latch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711351471.7A CN107933030B (en) | 2017-12-15 | 2017-12-15 | Fiber reinforced composite material sandwich plate structure with lock catch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711351471.7A CN107933030B (en) | 2017-12-15 | 2017-12-15 | Fiber reinforced composite material sandwich plate structure with lock catch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107933030A CN107933030A (en) | 2018-04-20 |
| CN107933030B true CN107933030B (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711351471.7A Active CN107933030B (en) | 2017-12-15 | 2017-12-15 | Fiber reinforced composite material sandwich plate structure with lock catch |
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| Country | Link |
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| CN (1) | CN107933030B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225804A (en) * | 2017-05-02 | 2017-10-03 | 集美大学 | Marine metal and core filled composite material Hybrid connections structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3878825B2 (en) * | 2001-09-21 | 2007-02-07 | 豊田鉄工株式会社 | Resin hood for vehicle and manufacturing method thereof |
| US8167364B2 (en) * | 2009-07-23 | 2012-05-01 | International Truck Intellectual Property Company, Llc | Roof panel with insert |
| CN105460082B (en) * | 2014-09-03 | 2018-02-16 | 奇瑞汽车股份有限公司 | A kind of preparation method of automobile engine cover |
| CN206544546U (en) * | 2017-03-02 | 2017-10-10 | 湖南三合汽车新材料有限公司 | A kind of bonnet |
| CN106988479A (en) * | 2017-04-06 | 2017-07-28 | 清华大学 | The pre-buried system and its application process of FRP battenboards |
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- 2017-12-15 CN CN201711351471.7A patent/CN107933030B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107225804A (en) * | 2017-05-02 | 2017-10-03 | 集美大学 | Marine metal and core filled composite material Hybrid connections structure |
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| CN107933030A (en) | 2018-04-20 |
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