CN112873875A - Mounting structure and mounting method of composite material sandwich structure - Google Patents
Mounting structure and mounting method of composite material sandwich structure Download PDFInfo
- Publication number
- CN112873875A CN112873875A CN202011587318.6A CN202011587318A CN112873875A CN 112873875 A CN112873875 A CN 112873875A CN 202011587318 A CN202011587318 A CN 202011587318A CN 112873875 A CN112873875 A CN 112873875A
- Authority
- CN
- China
- Prior art keywords
- hole
- skin
- mounting
- sandwich structure
- adhesive
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000853 adhesive Substances 0.000 claims abstract description 31
- 230000001070 adhesive effect Effects 0.000 claims abstract description 31
- 239000003292 glue Substances 0.000 claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 19
- 239000010959 steel Substances 0.000 claims description 19
- 238000005553 drilling Methods 0.000 claims description 13
- 238000010079 rubber tapping Methods 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 229910000975 Carbon steel Inorganic materials 0.000 claims description 2
- 239000010962 carbon steel Substances 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 19
- 239000011148 porous material Substances 0.000 description 11
- 239000010410 layer Substances 0.000 description 10
- 239000012792 core layer Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 229910000754 Wrought iron Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/52—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive
- B29C65/527—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the way of applying the adhesive by gravity only, e.g. by pouring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
- B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
- B26F1/16—Perforating by tool or tools of the drill type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
- B29C66/022—Mechanical pre-treatments, e.g. reshaping
- B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
- B29C66/02241—Cutting, e.g. by using waterjets, or sawing
- B29C66/02242—Perforating or boring
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Connection Of Plates (AREA)
Abstract
The invention provides a mounting structure and a mounting method of a composite material sandwich structure, wherein the composite material sandwich structure comprises an inner skin, an outer skin and a sandwich layer, a skin hole is formed in the inner skin or the outer skin of the composite material sandwich structure and communicated with a glue column hole formed in the sandwich layer, an adhesive is poured into the glue column hole, a mounting piece is inserted into the adhesive in the glue column hole through the skin hole and is tightly bonded and cured with the adhesive, and a threaded hole for mounting equipment is formed in the mounting piece. The invention can be installed on site, and the installation parts can be embedded on site according to the installation position requirements of actual equipment. The invention can meet the requirements of the installation equipment on the forward tensile load and the torsional load.
Description
Technical Field
The invention relates to the technical field of composite materials, in particular to a mounting structure and a mounting method of a composite material sandwich structure.
Background
The composite material sandwich structure is a structural form with excellent performances such as light weight, high strength, high rigidity and the like, and is widely applied to places with strict requirements on product weight.
The equipment fixing on the traditional composite material sandwich structure mainly has two modes: (1) the heavier equipment installation is that when the composite material sandwich structure type product is manufactured, a steel plate is pre-embedded in the composite material sandwich structure, and when the equipment is installed, the equipment is installed through drilling and tapping (or riveting) according to the position of the steel plate. (2) The lighter equipment is installed by punching riveting or self-tapping screws.
The mode of the embedded steel plate of the traditional composite material sandwich structure can not realize the random change of the installation position of equipment, is very inconvenient for the layout adjustment of later-stage product equipment, and can not meet the requirement of equipment modification.
The traditional composite material sandwich structure is punched and riveted or self-tapping screws are used for installing light and small equipment, the riveting or self-tapping screws are fixed on a skin, the sandwich structure skin is generally very thin, and the equipment is easy to loosen and fall off rivets and screws in the long-term vibration and bumping process, so that the equipment is damaged.
The patent application with the publication number of CN111102277A discloses a steel insert mounted everywhere in a lightweight shelter, which is complex in structure and needs to be subjected to a complex machining process; in addition, during installation, threaded holes in multiple steel inserts are difficult to ensure with high positional accuracy during actual operation.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a mounting structure and a mounting method of a composite material sandwich structure. The invention can meet the requirements of the installation equipment on the forward tensile load and the torsional load.
In order to achieve the technical purpose, the technical scheme of the invention is as follows:
composite sandwich structure's mounting structure, including composite sandwich structure, composite sandwich structure includes interior covering, outer covering and sandwich layer, sets up the covering hole on composite sandwich structure's interior covering or outer covering, and the rubber column hole of seting up in covering hole and the sandwich layer communicates, has filled the adhesive in the rubber column hole, and the installed part passes in the covering hole inserts the downthehole adhesive of rubber column and closely bonds the solidification together with the adhesive, offers the screw hole that is used for erection equipment in the installed part inside.
Furthermore, the mounting part is a metal rod, and the material can be carbon steel or hard aluminum alloy material. Preferably, the mounting member is a metal rod with a regular polygonal cross section, such as a hexagonal steel rod. The hexagonal steel bar is adopted, so that the torsion resistance of the mounting mechanism can be improved compared with a round steel bar; meanwhile, only simple processing is needed.
Furthermore, the inner skin and the outer skin are composite plates, and can also be aluminum plates, steel plates or other metal thin plates. The sandwich layer is made of light materials, such as a foam layer.
Further, the pore size of the skin pores is smaller than that of the gel column pores. Preferably, the pore diameter of the skin pore is not more than 30mm, and the pore diameter of the rubber column pore is not less than 60 mm.
Further, the core layer is preferably a honeycomb-structured core layer.
A method of installing a composite sandwich structure comprising the steps of:
preparing a mounting piece;
drilling skin holes on an inner skin or an outer skin of the composite material sandwich structure, drilling the skin holes until the skin holes penetrate into a sandwich layer, expanding the sandwich layer holes to a certain hole diameter, and then cleaning the holes until no residue left by drilling holes exists in the holes to form a glue column hole;
pouring an adhesive into the glue column hole;
inserting the mounting piece into the adhesive, and removing the redundant adhesive on the inner skin or the outer skin;
standing, and tightly bonding and curing the mounting piece and the adhesive;
and (3) drilling a bottom hole on the mounting piece, wherein the bottom hole extends into the mounting piece, and then tapping is carried out in the bottom hole to form a threaded hole, namely equipment can be mounted through the threaded hole.
Compared with the prior art, the invention has the beneficial effects that:
1. the anti-torsion device can improve the anti-torsion capability of the embedded part and only needs simple processing.
2. Aiming at the problem that the installation position of equipment in the prior art can not be changed at will, the invention adopts the form of a rear-mounted pre-embedded installation part (such as a hexagonal steel bar), and the installation part can be pre-embedded on site according to the actual installation hole position of the equipment. The invention can be installed on site, and can adopt a site matching installation mode, thereby simplifying the earlier stage processing technology and improving the precision of the installation hole site.
3. The structural form of bonding the pouring adhesive with the inner skin and the outer skin is adopted, so that the forward tensile capacity of the mounting structure can be obviously improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic view of an installation structure according to an embodiment of the present invention;
fig. 2 is a flow chart of an installation method according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; the connection can be mechanical connection, electrical connection, physical connection or wireless communication connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, in an embodiment there is provided a mounting structure for a composite sandwich structure, comprising a composite sandwich structure comprising an inner skin 1, an outer skin 2 and a sandwich layer 3.
Offer skin hole 101 on combined material sandwich structure's interior skin 1, skin hole 101 communicates with each other with the gluey post hole 301 of seting up in the sandwich layer 3, has poured into adhesive 4 in gluey post hole 301, and mounting part 5 passes in skin hole 101 inserts the adhesive 4 in gluey post hole 301 and closely bonds the solidification together with adhesive 4, offers the screw hole 501 that is used for the erection equipment in mounting part 5 inside. The skin hole and the rubber column hole are both arranged, the adhesive is poured and the mounting pieces are embedded to be operated on site, and therefore the problem that the mounting position of equipment cannot be changed randomly in the prior art can be solved. Meanwhile, the invention can improve the precision of the installation position of the equipment, and can ensure that the requirement of the installation hole position of the equipment can be met by adopting a drilling mode matched with the equipment on site.
In one embodiment, the mounting member 5 is a hexagonal steel rod. The invention adopts the post-embedded hexagonal steel bar, and the size of the rubber hole can be adjusted according to the load of the installation equipment. To the problem that steel plug-in components structure is complicated among the prior art, position accuracy is not high, this technical scheme hexagonal rod iron adopts current section bar, only needs to cut according to length and can accomplish earlier stage's processing. Compared with a round embedded part, the hexagonal embedded part can improve the torsion resistance of the embedded part; meanwhile, only simple processing is needed.
The aperture size of the skin hole is smaller than that of the rubber column hole. In one embodiment, the pore diameter of the skin pore is not more than 30mm, and the pore diameter of the rubber column pore is not less than 60 mm.
The inner skin 1 and the outer skin 2 are usually made of composite material plates, and may also be made of aluminum plates, steel plates or other thin plates. The sandwich board is a foam board. The core layer 3 is preferably a honeycomb core layer.
Referring to fig. 2, in one embodiment there is provided a method of installing a composite sandwich structure comprising the steps of:
and (5) blanking the hexagonal steel bar for later use.
And drilling a skin hole on the inner skin of the composite material sandwich structure, wherein the size of the skin hole is not more than 30 mm. And drilling the skin hole until the skin hole penetrates into the sandwich layer, expanding the hole in the sandwich layer to a certain hole diameter, and then cleaning the hole until no residue left by drilling is left in the hole to form a hinge hole. The positive tensile load is greatly related to the glue column formed by the adhesive, and the size of the glue column is usually not less than 60mm, so that the aperture of a glue column hole is required to be not less than 60 mm.
And (3) pouring an adhesive into the glue column hole, wherein the adhesive is a structural glue adhesive.
And inserting the hexagonal steel bar into the adhesive, and removing the redundant adhesive on the inner skin.
Standing and curing, and tightly bonding and curing the mounting piece and the adhesive together. In order to ensure good bonding between the cured glue column and the inner and outer skins, a normal-temperature curing adhesive with the curing time of about 15-20min is selected.
The bottom hole is drilled in the hexagonal steel bar in a matched mode, the bottom hole extends into the hexagonal steel bar, then a threaded hole is formed in the bottom hole in a tapping mode, and equipment can be installed through the threaded hole.
The scheme adopts a structural form of bonding the perfusion adhesive with the inner skin and the outer skin, and can obviously improve the forward tensile capacity of the mounting structure.
The scheme has the advantages that the forward tensile load is not less than 8KN (the rubber column hole is not less than 60mm), the torque load is not less than 30 N.m, and the equipment installation requirements of composite sandwich structure products can be met.
In summary, although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. Composite sandwich structure's mounting structure, including composite sandwich structure, composite sandwich structure includes interior covering, outer covering and sandwich layer, its characterized in that: the inner skin or the outer skin of the composite material sandwich structure is provided with a skin hole which is communicated with a glue column hole arranged in the sandwich layer, an adhesive is poured into the glue column hole, the mounting piece penetrates through the skin hole to be inserted into the adhesive in the glue column hole and is closely bonded and solidified with the adhesive, and a threaded hole used for mounting equipment is arranged inside the mounting piece.
2. The composite sandwich structure mounting structure of claim 1, wherein: the mounting member is a metal rod.
3. The composite sandwich structure mounting structure of claim 2, wherein: the mounting piece is a metal rod made of carbon steel or hard aluminum alloy.
4. The composite sandwich structure mounting structure of claim 1, wherein: the aperture size of the skin hole is smaller than that of the rubber column hole.
5. The composite sandwich structure mounting structure of claim 4, wherein: the aperture of the skin hole is not more than 30mm, and the aperture of the rubber column hole is not less than 60 mm.
6. The composite sandwich structure mounting structure of claim 1, wherein: the inner skin and the outer skin are composite plates.
7. The composite sandwich structure mounting structure of claim 1, wherein: the inner skin and the outer skin are aluminum plates or steel plates.
8. The composite sandwich structure mounting structure of claim 1, wherein: the sandwich layer is a honeycomb structure sandwich layer made of light materials.
9. A method of installing a composite sandwich structure, comprising the steps of:
preparing a mounting piece;
drilling a skin hole on an inner skin or an outer skin of the composite material sandwich structure, drilling the skin hole until the skin hole reaches the sandwich layer, enlarging the hole in the sandwich layer to a certain hole diameter, and then cleaning the hole until no residue left by drilling is left in the hole to form a glue column hole;
pouring an adhesive into the glue column hole;
inserting the mounting piece into the adhesive, and removing the redundant adhesive on the inner skin or the outer skin;
standing and curing, and tightly bonding and curing the mounting piece and the adhesive;
and (3) drilling a bottom hole on the mounting piece, wherein the bottom hole extends into the mounting piece, and then tapping is carried out in the bottom hole to form a threaded hole, namely equipment can be mounted through the threaded hole.
10. The method of installing a composite sandwich structure according to claim 9, wherein the standing curing time is 15-20min and the temperature is normal temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587318.6A CN112873875A (en) | 2020-12-28 | 2020-12-28 | Mounting structure and mounting method of composite material sandwich structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587318.6A CN112873875A (en) | 2020-12-28 | 2020-12-28 | Mounting structure and mounting method of composite material sandwich structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112873875A true CN112873875A (en) | 2021-06-01 |
Family
ID=76045979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011587318.6A Pending CN112873875A (en) | 2020-12-28 | 2020-12-28 | Mounting structure and mounting method of composite material sandwich structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112873875A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1906631A1 (en) * | 1969-02-11 | 1970-09-03 | Duroplast Gmbh | Method and device for firmly connecting parts made of glass fiber reinforced plastic to one another, in particular components, e.g. Profile parts, window frames and the like. |
| CN201712183U (en) * | 2010-05-31 | 2011-01-19 | 林启鹏 | Optical wave heating device for surface pasting of automobile door base plate |
| CN112060602A (en) * | 2020-08-29 | 2020-12-11 | 衡阳泰豪通信车辆有限公司 | Method for improving pulling resistance of insert of sandwich board |
-
2020
- 2020-12-28 CN CN202011587318.6A patent/CN112873875A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1906631A1 (en) * | 1969-02-11 | 1970-09-03 | Duroplast Gmbh | Method and device for firmly connecting parts made of glass fiber reinforced plastic to one another, in particular components, e.g. Profile parts, window frames and the like. |
| CN201712183U (en) * | 2010-05-31 | 2011-01-19 | 林启鹏 | Optical wave heating device for surface pasting of automobile door base plate |
| CN112060602A (en) * | 2020-08-29 | 2020-12-11 | 衡阳泰豪通信车辆有限公司 | Method for improving pulling resistance of insert of sandwich board |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6729576B2 (en) | Composite tail cone assembly | |
| AU2009243975B2 (en) | Magnesium alloy honeycomb board and preparation method thereof | |
| US20130157073A1 (en) | Bi-Metallic Component And Method | |
| DE102016103411A1 (en) | Battery device for an at least partially electrically powered vehicle | |
| EP0823374A3 (en) | One piece spacecraft frame | |
| EP2730495A1 (en) | Shell structure of a fuselage | |
| WO1997009134A1 (en) | Reinforced formed part, process for its production and its use | |
| US20150273787A1 (en) | System and Method for Reducing Core of a Metallic Honeycomb Panel Structure | |
| EP3838720B1 (en) | Side sill structure for vehicle | |
| CA2491204A1 (en) | Integrated steel cross-car beam | |
| US20040070229A1 (en) | Passenger vehicle structure and method of making same | |
| CN112873875A (en) | Mounting structure and mounting method of composite material sandwich structure | |
| US9050933B2 (en) | Mass optimized extrusions, assemblies including the same and methods of making and using the same | |
| CN110064755B (en) | 3D printing lightweight post-embedding part and post-embedding method | |
| CN208181178U (en) | Electric car body fore sub frame installs point structure | |
| CN206374827U (en) | front end frame and electric vehicle | |
| CN211663243U (en) | Non-metal frame for locomotive cooling tower | |
| CN209336441U (en) | Compressor fixing and automobile | |
| CN209395895U (en) | Multi-purpose stand structure on dashboard cross member | |
| CN206972727U (en) | A kind of nut connecting structure | |
| CN205971493U (en) | Electric automobile front longitudinal assembly with threaded bush structure | |
| CN206255009U (en) | A kind of lightweight may be reversed sleeping berth | |
| CN208411854U (en) | A kind of steering column mounting structure, instrument disc assembly and vehicle | |
| CN221418418U (en) | Portable automobile instrument board beam easy to install | |
| CN211950021U (en) | Split type tail door locking device for sound insulation and noise reduction of motor vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210601 |
|
| RJ01 | Rejection of invention patent application after publication |