CN87205965U - Fully loaded and fully plastic automobile body with preset connecting elements - Google Patents
Fully loaded and fully plastic automobile body with preset connecting elements Download PDFInfo
- Publication number
- CN87205965U CN87205965U CN 87205965 CN87205965U CN87205965U CN 87205965 U CN87205965 U CN 87205965U CN 87205965 CN87205965 CN 87205965 CN 87205965 U CN87205965 U CN 87205965U CN 87205965 U CN87205965 U CN 87205965U
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- composite material
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- vehicle body
- automobile body
- glass fabric
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- Expired - Lifetime
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Abstract
The utility model relates to an integral automobile body with high-strength light composite material. The automobile body comprises an upper part and a lower part. The upper part is an integral shell made of demoulded composite material, and the lower part an integral crossbeam with prestress made of composite material. The upper part and the lower part are agglutinated together to the integral automobile body. Connecting elements are preset for connecting other automobile assemblies on the automobile body.
Description
The utility model relates to a kind of high strength, the full bearing automobile vehicle body of light composite material.On this integral automobile vehicle body, be embedded with the connector that is used to connect other each assemblies of automobile.
Auto body is generally formed by the steel plate compacting.In recent years, along with developing rapidly of engineering plastics and composite material, use plastics and composite material on the automobile and make the more and more of member, for example: with semi-hard polyurethane foam plastic and polyvinylchloride manufacturing direction dish, gauge panel, face post, ceiling etc.; Adopt the modified rigid polyurethane plastics to make bumper/spoiler, make backplate with modification ABC plastics; Make car door with the SMC laminated plastics, make spring plate and turning cylinder etc. with the carbon fiber glass-felt plastic, also useful plastics or composite material manufacturing unit body, but because the material cost height, processed complex, so, up to the present, seldom have vehicle body plastics or composite material to put on market, its major cause has several, 1. vehicle body, especially unitary body plastics or composite material, its intensity and impact resistance are generally not ideal enough.2. its cost is higher than the automobile of Iron and Steel Production, and 3. the vehicle body of plastics or composite material is not ideal enough with connecting of other assemblies of automobile.So, in light weight although the unit body that composite material is made has, advantage such as oil consumption is low, but can not replace iron and steel and carry out big regular production.
The applicant once proposed a kind of auto body and manufacture method thereof of full bearing composites, its application number is 85101438, wherein with being glass fabric and the two-layer at least glass fabric that soaks into polyester that one deck has soaked into epoxy resin at least, all overlap joint wraps the automobile inner tube model of being made by composite foam material respectively, make the composite material unitary body therefrom, because in process of production, the glass fabric that each layer soaked into polyester or epoxy resin produces contraction in solidification process, vehicle body integral body has been produced give stress, so it is low not only to have cost, lightweight characteristics, also has the intensity height especially, the considerable part that anti-impact force is strong.
But, this automobile has run into some problems in batch manufacturing: its manufacturability is poor on the one hand, because what use in the course of processing is mold rather than mould, so the working accuracy of vehicle body is low, surface finish is bad and make the appearance property of vehicle body not ideal enough; In addition, owing to there is a large amount of handwork in the course of processing, each car all can not be identical, so, make full plastic vehicle body and other assembly, as, car door, the connection of parts such as driving engine, suspension system can not be very accurate, and its interchangeability is poor.This has the unit body that the gives stress batch manufacturing that has high input with regard to making, and has customer satisfaction system automobile appearance and have some difficulties.
Purpose of the present invention is exactly the articulation issues that will solve all-plastic automobile vehicle body and other assembly.The invention provides the integral automobile vehicle body that a kind of composite material is made, this vehicle body is the intensity height not only, and strong shock resistance has good surface appearance and desirable interchangeability.And in this unit body structure, pre-buried having got well and automotive engine, suspension system, the attaching parts that other assembly such as car door, fuel tank connects.Thereby make the production in enormous quantities of the automobile that the unit body by composite material constitutes and put on market and become possibility.
Feature of the present invention is exactly that vehicle body is divided into two parts processing, and a right part is a body top section, and this is the unit body top of being made by composite material; Second portion is a body bottom section, and it is the whole big Beam that is given stress by having of making of composite material.Again body top section and body bottom section are bonded together, thereby have constituted complete vehicle body.Pre-buried attaching parts on vehicle body simultaneously.
When processing unit body top, adopted inner mold and outer mold, make inner casing and shell that shape is complementary respectively, matched moulds makes up the bonding complete body top section that becomes then.When the processing inner casing, should be at the pre-buried connector of suitable position.When the processing body bottom section, the inner tube of a tyre model that adopts composite foam material to make, again will be at least one deck soaked into the glass fabric of epoxy resin and at least one deck glass fabric of having soaked into polyester all overlap respectively and wrap this inner tube of a tyre model, and, has the whole big Beam that gives stress and constitute at the pre-buried connector in suitable position.
Body top section and body bottom section are sleeved on together, the joint portion with foamed fibre polyester glue filling body top section and body bottom section has just formed the complete vehicle body with good appearance after the curing again.
The present invention will be described in more detail below with reference to accompanying drawing.
Fig. 1 is the composite material unit body vertical profile scheme drawing by vehicle body upper and lower part be combined into;
Fig. 2 is the schematic cross section of Fig. 1;
Fig. 2 A is the local enlarged diagram of Fig. 2 joint portion A;
Fig. 3 is the lateral plan of body top section;
Fig. 4 is the end elevation of body top section;
Fig. 5 is the lateral plan (analysing and observe) of body bottom section;
Fig. 6 is the end elevation (analysing and observe) of body bottom section;
Fig. 7 is a body bottom section built-in connection scheme drawing;
Fig. 8 is a body top section built-in connection scheme drawing.
Give being constructed as follows of stress composite material body bottom section:
At first, composite foam material shape on demand is processed into inner tube of a tyre model.In small batch production, the method for available processing wooden mold is made each parts of required shape with cystosepiment, and then with adhesives each sheet material is pieced together and to be sticked into needed global shape.In production in enormous quantities, available injection moulding, a method is shaped to needed shape.
Will wrap up this inner tube of a tyre model fully with glass fabric by different level then.
It is suitable that glass fabric will be cut out, and is complementary with corresponding inner tube of a tyre model.In epoxy resin solution, soak into then.Wherein epoxy resin will dilute, and will add curing agent in this solution simultaneously, if adopt second diamino curing agent, it is proper that then the ratio of second diamino and epoxy resin should be about 1:10.
The glass fabric that will soak into epoxy resin is topped on inner tube of a tyre model, is that scrub-brush more than 6 centimetres is flat with glass fabric brush with width.This is the ground floor glass fabric, must wrap inner tube of a tyre model all, equably, wherein will note the overlap of glass woven fabric especially, is proof strength, and the width of its overlap can not be less than 50 millimeters.After about 3 hours,, it is had an even surface with the rubber cylinder glass fabric of roll extrusion semi-solid preparation equably.This glass fabric that soaks into epoxy resin is wanted topped one deck at least.If topped two layers, then about 36 hours in the topped back of ground floor, after glass-felt plastic solidifies, the topped again second layer.
To soak into polyester again, cut out suitable glass fabric as stated above mutually overlap joint and all, topped on ground floor (or which floor) glass fabric equably, its lap width can not be less than 50 millimeters.The glass fabric that soaks into polyester is wanted more than topped one deck, in the end one deck topped after, approximately after 48 hours, the alkide resin glass-felt plastic has just solidified, and then in its top layer polishing, sprays paint, glazing again.
Be the first method of making composite material above.Second method and first kind are similar, and its main difference point is: at first the epoxy resin that modulates is sprayed equably or brush on foam inner tube of a tyre model (wherein also will mix curing agent in the epoxy resin).After about 20 minutes, when epoxy resin also has cooresponding viscosity, ground floor glass fabric two ends are evened up, steadily shakedown is multiple flat with dried brush brush on foam inner tube of a tyre model, and promptly all model is encased with glass fabric.Wherein also to interlock between every cloth and put up at least 50 millimeters, then on the ground floor glass fabric with spray or brush epoxy resin solution, make this solution soak into the glass fibre layer of cloth, after about 20 minutes, repave multiple second layer glass fabric with said method.Again in the method for cover glass fiber cloth, its glass fabric is wanted two layers at least behind spary epoxy resin.After treating needed level shop answer, need about 36 hours curing, and then polyester sprayed or brush on above-mentioned glass-felt plastic.After about 20 minutes, the multiple upper glass fiber layer of cloth in shop, its method and main points and spary epoxy resin similar, but to spread layer of glass cloth at least, just on polyester layer, also to spread multiple layer of glass cloth, and then spary one deck polyester, after treating each layer all bedding, parcel finishing, to pass through about 48 hours curing, and then polishing, japanning, glazing are done surface treatment.
Because of every layer of glass fabric that has soaked into epoxy resin or polyester in solidification process, produce 8/1000ths contraction and make this member produce prestressed tension.
In aforesaid operations, the lap width between the glass fabric is all more than 50 millimeters, and the ambient temperature of operation will be higher than 25 ℃, and air humidity will be lower than 70%.
The manufacturing of body top section (seeing 1 among Fig. 3, Fig. 4) and being constructed as follows:
The every interior forming surface of making the external mold of body top section housing is carried out polishing, its forming surface degree of finish is reached more than 10 grades:
Then demoulding wax is melted under 37 ℃ of temperature, the demoulding wax of fusing is spread upon on the mould molding face uniformly, after demoulding wax solidifies (about 15 minutes), erase with the demoulding wax that cloth will solidify, repeat to smear the operation five times of demoulding wax, demoulding wax is penetrated in the slit of mould glass fibre fully;
After above-mentioned operation is finished, the liquid mold release is sprayed on the mould molding face that scribbles demoulding wax, its coat thickness is about 0.01mm, and the liquid mold release repeats to spray twice;
After the abundant drying of liquid mold release, uniformly spray one deck gel coat solution thereon, to mix mill base according to selected body color in the gel coat solution, the weight of mill base accounts for the 10%-20% of gel coat total solution weight.The coat thickness of gel coat is about 0.6mm, and the gel coat after the spraying will solidify about two hours.
Multiple one deck is cut out suitable Blanket (or glass fabric) on the mould molding face upper berth that the gel coat coating is arranged, for the ease of carrying out the bonding of car shell each several part when the matched moulds, each limit of Blanket is less than the about 20mm of die edge, and the thickness of Blanket is about 0.2-1mm;
Cast uniformly thereon is with alkide resin then, (or unsaturated polyester), and with the aluminum jugged rolling wheel to the sufficient flattening-out of the alkide resin on the Blanket, alkide resin is soaked in the slit of Blanket uniformly, wherein to add curing agent in the alkide resin.
Thickness is as required poured into a mould polyester (or unsaturated polyester) thereon with the shop of layer of glass cloth at least is multiple on the Blanket of abundant flattening-out, and flat with the brush brush, eliminates its bubble.Repeat this step till reaching desired thickness.
Through 24-36 hour curing, just made the skin of certain part of this body top section.
On interior forming surface corresponding to above-mentioned car shell external mold partly, repeat above-mentioned whole operating process, make the internal layer of this car shell part:
On the faying face of car shell ectonexine, and the joint portion place mat of housing is with glass fabric and be coated with alkide resin, and the interior external mold that will have this car shell ectonexine then is involutory, and is with bolt that the mounting flange on the interior external mold is fastening, make body top section become as a whole, solidify till 24 hours.
Press first external mold, the order stripping of back internal mold then;
After the demoulding, the surface is done in the junction handle polishing, japanning, glazing;
The combination of body top section (1) and body bottom section (2) is such: (seeing Fig. 1, Fig. 2)
With the molded body top section (1) that fully solidifies with give stress body bottom section (2) and be sleeved on together, the design of body top section (1) and body bottom section (2), should guarantee that these two parts are chimeric fully at the junction surface potential energy, but leave gap about 8mm in its face of joint edge.
With the foamed fibre resin glue (13) of formulated, be filled in the slit of body top section (1) and body bottom section (2) joint (seeing Fig. 2 to 4), make body top section (1) and body bottom section (2) can glue force together, and solidify fully.
The connector built-in process is as follows:
On some position of body top section (1) and body bottom section (2), be useful on and automobile each assemblies and parts be installed as the connector of driving engine, front and back bridge, car door, fuel tank etc., as bolt hole, hook, hanger etc., these connectors adopt pre-buried method to be fixed on the vehicle body, and its concrete built-in process is as follows:
For being arranged, the body bottom section (2) that gives stress sees Fig. 7: each is needed pre-buried connector (4) (nut, hook, hanger etc.) a side, be welded on the steel plate (3) of a certain size, this steel plate (3) thickness is generally about 1mm, and its shape will conform to the vehicle body shape at pre-buried place; Its steel plate (3) size can be calculated for 1 kilogram by every sq cm carrying under connector (4) resistance to compression situation; Under connector (4) tension situation, calculate by the size of 1 kilogram of per 3 sq cms carrying; Steel plate (3) need be through processing of rust removing.
Steel plate can with the attaching parts weld together, weld towards a side of car body (2) at each connector (4), should make the be subjected to force direction of steel plate (3) plane perpendicular to connector (4).
Wrapping up the giving on stress body bottom section (2) member of plurality layers of glass fiber cloth (5), giving and determine pre-buried position with jig earlier.
The steel plate (3) that will be welded on each connector (4) is located side and is coated with fibre resin glue (6) thick more than the 1cm, and the steel plate (3) that size and dimension is adapted sticks on and gives on the vehicle body (2) of reserving the position earlier;
After treating that fibre resin glue fully solidifies, again will be at least one deck soak into epoxy resin or polyester and at the glass fabric (7) of locating to leave opening corresponding to connector (4), wrap up body bottom section (2) member successively, connector (4) is exposed from the opening part of glass fabric (7), glass fabric (7) should cover steel plate (3) fully, and connector (4) is exposed.
The built-in process of body top section (1) is different with body bottom section (2), and (see figure 8) begins pre-buried when making body top section (1) inner casing.
On the mould molding face, spread and glued plurality layers of glass fiber cloth (8) afterwards, give the pre-buried position of determining earlier with jig, the steel plate (10) of appropriate size is bonded on this position with fibre resin glue (9), the thickness of its light plate (10) is about 4mm, the shape of steel plate (10) is wanted and the inner casing mould at this place adapts, the size of steel plate can be with reference to the pre-buried method of foregoing body bottom section (2), be 1kg both as bearing capacity, according to connector pressurized or pulled condition, its steel plate area is 1-3cm
2
Proceed to spread the operation of multiple glass fabric (1) and cast fibre resin then;
After the vehicle body demoulding, on the appropriate location of pre-embedded steel slab (10), punch and the hitch operation.
Be embedded with the full-bearing type all-plastic automobile vehicle body of connector, have in light weight, the intensity height, cost is low, manufacture method is easy, the advantage that is suitable for producing in batches.
Claims (1)
1, a kind of full-bearing type all-plastic automobile vehicle body, it is characterized in that: this integral automobile vehicle body is made of upper and lower two parts, and first is a body top section, is through unit body top that the demoulding is made by composite material; Second portion is a body bottom section, is to have a big Beam component of prestressed integral body by what composite material was made.Body top section and bottom are bonded together, and in the upper and lower of this vehicle body the pre-buried respectively attaching parts that connects with other assembly of automobile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87205965 CN87205965U (en) | 1987-04-02 | 1987-04-02 | Fully loaded and fully plastic automobile body with preset connecting elements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87205965 CN87205965U (en) | 1987-04-02 | 1987-04-02 | Fully loaded and fully plastic automobile body with preset connecting elements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87205965U true CN87205965U (en) | 1988-05-18 |
Family
ID=4821630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87205965 Expired - Lifetime CN87205965U (en) | 1987-04-02 | 1987-04-02 | Fully loaded and fully plastic automobile body with preset connecting elements |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87205965U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093477C (en) * | 1998-11-08 | 2002-10-30 | 王政中 | Method for mfg. glass fibre reinforced plastic door of sedan |
| CN104583062A (en) * | 2012-06-08 | 2015-04-29 | 本田技研工业株式会社 | Fibre-reinforced plastic cabin for vehicle |
-
1987
- 1987-04-02 CN CN 87205965 patent/CN87205965U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093477C (en) * | 1998-11-08 | 2002-10-30 | 王政中 | Method for mfg. glass fibre reinforced plastic door of sedan |
| CN104583062A (en) * | 2012-06-08 | 2015-04-29 | 本田技研工业株式会社 | Fibre-reinforced plastic cabin for vehicle |
| US9387889B2 (en) | 2012-06-08 | 2016-07-12 | Honda Motor Co., Ltd. | Fiber-reinforced plastic cabin for vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |