CN106799848A - " C " shape rubber mandrel forming method, forming method and the shaped device for " work " shape component for " work " shape component - Google Patents
" C " shape rubber mandrel forming method, forming method and the shaped device for " work " shape component for " work " shape component Download PDFInfo
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- CN106799848A CN106799848A CN201611136026.4A CN201611136026A CN106799848A CN 106799848 A CN106799848 A CN 106799848A CN 201611136026 A CN201611136026 A CN 201611136026A CN 106799848 A CN106799848 A CN 106799848A
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- Prior art keywords
- shape
- work
- rubber
- mandrel
- rubber mandrel
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Classifications
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- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
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- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/40—Plastics, e.g. foam or rubber
- B29C33/405—Elastomers, e.g. rubber
-
- 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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
- B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16S—CONSTRUCTIONAL ELEMENTS IN GENERAL; STRUCTURES BUILT-UP FROM SUCH ELEMENTS, IN GENERAL
- F16S3/00—Elongated members, e.g. profiled members; Assemblies thereof; Gratings or grilles
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
- B29C33/3842—Manufacturing moulds, e.g. shaping the mould surface by machining
- B29C2033/385—Manufacturing moulds, e.g. shaping the mould surface by machining by laminating a plurality of layers
Abstract
The present invention provides a kind of forming method of " C " shape rubber mandrel, comprises the following steps：Ground floor " C " shape half finished rubber is laid in the recess of rubber mandrel mould and is brought into close contact with the recess, " C " the shape half finished rubber described in is compacted using vacuum bag；On the ground floor " C " shape half finished rubber, core interlayer is laid, the core interlayer 11 is compacted in described " C " half finished rubber using vacuum bag；" C " half finished rubber for being equipped with core interlayer obtained by previous step is packaged as overall, enters tank solidification, " C " shape rubber mandrel is formed after the demoulding.It is an object of the invention to optimize composite " work " shape class molding component technology, there is provided a kind of reliable core substitutes conventional metals core and rubber soft mode, solves pressure transmission consistency problem in forming process, improves composite product internal soundness.
Description
Technical field
The present invention relates to " C " shape rubber mandrel forming method, the forming method for " work " shape component, for " work " shape structure
The shaped device of part.
Background technology
Composite has specific strength and specific modulus high, and performance can design and be easy to many excellent specific properties such as monolithic molding,
Use it on aircaft configuration, the weight of aircaft configuration can be significantly reduced, improve aircraft aeroelastic characteristic, improve aircraft
Energy.And composite " work " type class component is higher because of its structure efficiency, it is widely used in aircaft configuration, such as airfoil structure covering adds
Rib and forward and backward beam on muscle wallboard.Composite " work " type class component is by upper and lower edge strip and two back-to-back " C " shapes
Laminate is constituted, and preforming spill bar is filled in the triangular cavity area between " C " shape laminate and upper and lower edge strip.
In the forming technique of composite " work " shape class component, the shaping of component relies primarily on upper and lower edge strip frock and core
Die craft equipment presses to composite blank, is allowed to curing molding.Typically there are two kinds of processes of type metal hard die and rubber soft mode, it is main
It is left and right sides core material to distinguish.The core of hard tooling process is mould steel, and the core of soft mode technique is sandwich rubber.Two
The difference for planting process is as follows：
In metal core die technique, metal core die integrated machine add-on type, in solidification process, core can be to " work " shape part upper limb
Bar forms support, it is ensured that the uniformity of product height.But metal core die has certain error during fabrication, after die assembly, left,
Gap between right both sides core cannot ensure uniformity on component whole length direction.Therefore in cure under pressure process
In, component may cause pressure transmission inconsistent because gap is inconsistent in the longitudinal direction, it is difficult to meet technological specification and fit
Boat is required.Locally easily there is mass defect in product, especially radius area, and such as thickness is overproof, layering, porosity are overproof, leads
Cause parts scrap.Additionally, core after reuse, is also easy to produce thermal deformation through repeatedly entering tank, cannot be completely eliminated after cooling, become
To cause more serious pressure transmission problem after shape accumulation.
In rubber soft mode technique, rubber mandrel is typically using solidification multilayer carbon fiber or glass fibre between two-layer rubber
Prepreg, forms " sandwich " interlayer structure.The characteristics of sandwich rubber mandrel has certain rigidity with elasticity, product is in autoclave
In pressure process, vacuum bag transfers the pressure to rubber mandrel, and be evenly transferred to pressure on article surface again, make by rubber mandrel
Product curing molding, it is ensured that product internal soundness.But because the sandwich stiffness layer of sandwich rubber mandrel is big, cannot be protected in fillet area
QED full laminating, easily the problems such as fillet area produces layering, bridge formation.Additionally, sandwich rubber mandrel is in die assembly or solidifies
Effectively support cannot be formed in journey to " work " shape part upper limb bar, the product height after solidification cannot ensure uniformity.
In sum, although rubber soft mode technique can solve that pressure transmission is uneven asks with alternative metals hard tooling process
Topic, it is ensured that product internal soundness, but still suffer from pressure transmission problem in fillet area, and can bring that product is highly inconsistent to ask
Topic.
The content of the invention
In order to solve the above technical problems, the present invention provides a kind of forming method of " C " shape rubber mandrel, including following step
Suddenly：
Step S1, ground floor " C " shape half finished rubber be laid in the recess of rubber mandrel mould and with it is described
Recess is brought into close contact, and using vacuum bag, " C " the shape half finished rubber described in is compacted；
Step S2, on the ground floor " C " shape half finished rubber, lays core interlayer, using vacuum bag the core
Die clamp layer 11 is compacted in described " C " half finished rubber；
Step S4, seals " C " half finished rubber for being equipped with core interlayer obtained by previous step as overall
Dress, enters tank solidification, and " C " shape rubber mandrel is formed after the demoulding.
In above-mentioned technical proposal, for the compacting operation in step S1, be conducive to obtaining outer surface very smooth first
Layer " C " shape half finished rubber, be step S2 effectively carry out it is ready.For the compacting operation in step S2, can be accurate
Ground is pressed into core interlayer in ground floor " C " shape half finished rubber, prevents deviation or out-of-flatness of compacting process etc.
Defect.Experiment shows, for vacuum bag compacting operation is respectively adopted in each step, " C " the shape rubber mandrel for finally obtaining
Flatness, durability and power transitivity all than only being significantly improved using vacuum bag compacting operation in last step.
Preferably, in step sl, it is compacted 20-30 minutes using vacuum bag；And/or in step s 2, using vacuum
Bag compacting 20-30 minutes.
Preferably, between step S2 and step S4, also including step S3：Step S3, what is obtained by previous step
It is equipped with the outer surface of " C " half finished rubber of core interlayer, re-lays the second layer " C " shape half finished rubber, uses
Vacuum bag is compacted the second layer " C " shape half finished rubber.Step S3 preferred herein, and then step S2 carry out,
Because having employed vacuum bag in step S2 to be pressed into ground floor " C " shape half finished rubber core interlayer, and obtain
The outer surface of fine flatness, now, it is just highly effective to re-lay the second layer " C " shape half finished rubber, can be formed plane with
Compacting relation between plane so that ground floor " C " shape half finished rubber, core interlayer, the second layer " C " shape half finished rubber are very
It is smooth well to combine together.Experiment is further demonstrated that, for vacuum bag compacting operation is respectively adopted in each step, finally
The flatness of " C " the shape rubber mandrel for arriving, durability and power transitivity in last step all than only using vacuum bag pressure
Practical operation is made to significantly improve.
Preferably, in step s3, it is compacted 20-30 minutes using vacuum bag.
Preferably, in step s 2, the core interlayer is divided into discontinuous three sections, and the upper of " C " shape is laid on respectively
In side, vertical edge and following straight portion.It is highly preferred that be laid on the top of " C " shape, vertical edge, it is following in discontinuous three
The length of section core interlayer is top, vertical edge, the length of following respective straight portion.
Preferably, in step s 2, the material of the core interlayer includes：Carbon fiber prepreg, aluminium sheet or steel plate.
At the same time, present invention also offers it is a kind of using it is preceding it is any as described in " C " shape rubber mandrel forming method
" C " the shape rubber mandrel for obtaining.
Meanwhile, the present invention also provides a kind of forming method for " work " shape component, comprises the following steps：
Step T1, using it is preceding it is any as described in " C " shape rubber mandrel forming method, inverted " C " shape rubber mandrel is obtained
" C " shape rubber mandrel；
Step T2, gets out preforming " work " shape component；
Step T3, the inverted " C " shape rubber mandrel props up the left inside concave side of " work " shape component, " C " the shape rubber mandrel
The right concave side of " work " shape component is propped up, upper cover plate props up the upside of " work " shape component, and base plate mould props up " work " shape component
Downside；
Step T4, to step T3 in not propped up for " work " shape component be partially filled with edge blend stop, in upper cover plate, anti-
" C " shape rubber mandrel, base plate mould, " C " shape rubber mandrel, the outside of edge blend stop, are packaged, and carry out using vacuum bag
Curing molding, obtains " work " shape composite after the demoulding.
Preferably, in step T2, the process for getting out preforming " work " shape component is：Upper edge strip laying, lower edge
Bar laying, left web laying, right web laying are combined with upper spill bar, lower spill bar, and compacting is pre-formed as " work " shape structure
Part.
Preferably, in step T3, the inverted " C " shape rubber mandrel or " C " the shape rubber mandrel and base plate mould
Tool interfixes, so as to realize horizontal fixation；Upper cover plate is connected with base plate mould by side supports, so as to realize that vertical direction is consolidated
It is fixed；Upper cover plate is stiffened panel, fixed on length direction so as to realize.
At the same time, the present invention also provide it is a kind of using it is preceding it is any as described in the forming method for " work " shape component obtain
" work " the shape composite for obtaining.
Meanwhile, the present invention also provides a kind of shaped device for " work " shape component, including：
Upper cover plate, the upper cover plate is stiffened panel, fixed on length direction for realizing；
Base plate mould, it is provided with side supports and is connected between the upper cover plate, for realizing that vertical direction is fixed；
Inverted " C " shape rubber mandrel and " C " the shape rubber mandrel, one of both interfix with the base plate mould, use
It is laterally fixed in realizing.
Preferably, location structure is installed on base plate mould, the length direction of fixed bit inverted " C " shape rubber mandrel
The two ends of the length direction of two ends or " C " shape rubber mandrel, make the inverted " C " shape rubber mandrel being fixed or described " C "
Shape rubber mandrel interfixes with the base plate mould, for realizing horizontal fixation.
It is an object of the invention to optimize composite " work " shape class molding component technology, there is provided a kind of reliable core is replaced
For conventional metals core and rubber soft mode, pressure transmission consistency problem in forming process is solved, improve composite product
Internal soundness；There is provided a kind of reinforcement upper cover plate and lateral support mould, it is ensured that high uniformity is consistent after " work " shape class molding component.
A kind of tool locating mode and device are provided, the web axis precision of " work " shape class component is improved.
Brief description of the drawings
Figure 1A is the schematic diagram of the rubber mandrel mould in the present invention.
Figure 1B is laying ground floor " C " shape half finished rubber and the schematic diagram of compacting in the present invention.
Fig. 1 C are the schematic diagrames of laying core interlayer in the present invention.
Fig. 1 D are the schematic diagrames of compacting core interlayer in the present invention.
Fig. 1 E are the laying second layer " C " shape half finished rubber and the schematic diagram of compacting in the present invention.
Fig. 2A is a form of " C " shape rubber mandrel of the invention.
Fig. 2 B are another form of " C " shape rubber mandrels of the invention.
Fig. 3 A are the decomposing schematic representations that preforming " work " shape component is made in the present invention.
Fig. 3 B are the combination diagrams that preforming " work " shape component is made in the present invention.
Fig. 3 C are the final schematic diagrames for obtaining " work " shape composite in the present invention.
Fig. 4 A are a kind of shaped device schematic diagrames for " work " shape composite of the invention.
Fig. 4 B are the partial enlarged drawings of the shaped device for " work " shape composite that Fig. 4 A are observed from angle.
Fig. 4 C are the partial enlarged drawings of the shaped device for " work " shape composite that Fig. 4 A are observed from another angle.
Fig. 5 is the schematic diagram of the forming method for " work " shape component of the invention.
Specific embodiment
Below in conjunction with accompanying drawing and instantiation, the present invention is further detailed explanation.For the convenience discussed, use
" on ", D score, "left", "right" the orientation in each schematic diagram is indicated, be conducive to the expansion discussed.It is below the present invention
Preferred embodiment specific introduction.
As shown in Figure 1A, it is that rubber mandrel mould 12 in the present invention has recess 121, is suitable to accommodate " C " shape not
Vulcanized rubber.
As shown in figures 1 b-1e, provided by the present invention for the forming method of " C " shape rubber mandrel, comprise the following steps.
As shown in Figure 1B, it is step S1.Ground floor " C " shape half finished rubber 101 is laid on rubber mandrel mould
It is brought into close contact in 12 recess 121 and with recess 121, " C " shape half finished rubber 101 is compacted using vacuum bag 4.Preferably,
Airfelt 2 can be arranged between vacuum bag 4 and ground floor " C " shape half finished rubber 101 so that consolidation effect evenly, is schemed
In sealing spill bar 1 be used for seal vacuum bag 4.The compacting process of vacuum bag 4, may remain in more than 1 minute；More preferably
Ground, is maintained at more than 5 minutes；It is highly preferred that being maintained between 20-30 minutes.
It is step S2 as shown in Fig. 1 C-1D.As shown in Figure 1 C, in ground floor " C " the shape half finished rubber being compacted
On, laying core interlayer 11 is compacted to core interlayer 11 in " C " shape half finished rubber 101 using vacuum bag 4, and its effect is such as
Shown in Fig. 1 D.The compacting process of vacuum bag 4, may remain in more than 1 minute；Preferably, it is maintained at more than 5 minutes；It is more excellent
Selection of land, was maintained between 20-30 minutes.Preferably, 11 points of core interlayer is discontinuous three sections, and " C " shape is laid on respectively
Top, in vertical edge and following straight portion.As shown in Figure 1 C, the top of " C " shape, vertical edge, it is following be all it is straight, even
Place is met to be bent in circular arc, laying on top, vertical edge, it is following in discontinuous three sections of core interlayers 11 can be substantially near upper
Side, vertical edge, the length of following respective straight portion, such as more than " C " shape respective straight portion length 1/2 or 2/3.Compared with
Preferably, the material of core interlayer 11 can be elected as：Carbon fiber prepreg, aluminium sheet or steel plate.
As referring to figure 1E, it is step S3, it should be pointed out that step S3 is preferred steps.What is obtained by previous step
It is equipped with the outer surface of the ground floor of core interlayer 11 " C " shape half finished rubber 101, re-lays the second layer " C " shape unvulcanized
Rubber 102, is compacted the second layer " C " shape half finished rubber 102 using vacuum bag 4.The compacting process of vacuum bag 4, can keep
More than 1 minute；Preferably, it is maintained at more than 5 minutes；It is highly preferred that being maintained between 20-30 minutes.
Step S3 preferred herein, and then step S2 is carried out, because having employed vacuum bag in step S2 core
Die clamp is laminated into ground floor " C " shape half finished rubber, and obtains the outer surface of fine flatness, now, is re-layed
The second layer " C " shape half finished rubber is just highly effective, can form the compacting relation between plane and plane so that ground floor
" C " shape half finished rubber, core interlayer, the second layer " C " shape half finished rubber is smooth well combines together.Experiment shows, right
Vacuum bag compacting operation is respectively adopted in each step, the flatness of " C " the shape rubber mandrel for finally obtaining, durability and
Power transitivity using vacuum bag compacting operation in last step all than only being significantly improved.
Finally be step S4, using " C " the shape half finished rubber for being equipped with core interlayer 11 obtained by previous step as
Entirety is packaged, and enters tank solidification, and " C " shape rubber mandrel 8 is formed after the demoulding.As shown in Figure 2 A, be above-mentioned steps S1, S2, S3,
After S4, that is, obtain " C " shape rubber mandrel 8.It can be seen that, " C " shape rubber mandrel 8 now has become a fusion entirety,
Core interlayer 11 is merged in half finished rubber well, ground floor " C " shape half finished rubber 101 and the second layer " C " non-sulphur of shape
Change the border between rubber 102 also no longer, it is apparent that forming the rubber of overall fusion.
As above-mentioned described in step s3, this step S3 is preferred steps, can be default.If default step
S3, i.e., using step S1, S2, S4, can obtain " C " shape rubber mandrel 8 as shown in Figure 2 B, and this is also that the intent of the present invention is protected
One of technical scheme of shield.It is appreciated that in fig. 2b, it is whole that " C " shape rubber mandrel 8 now also has become a fusion
Body, core interlayer 11 is merged in half finished rubber well, is characterized in, core interlayer 11 now is located at " C " shape rubber
" C " shape inner side top of core, vertical edge, at following surface.
" C " the shape rubber for how using the forming method of " C " shape rubber mandrel of the invention to obtain is described in detail above
Core.
The forming method for " work " shape component of the invention is discussed in detail below with reference to accompanying drawing, comprises the following steps
T1、T2、T3、T4。
In step T1, the forming method of " C " shape rubber mandrel in any of the above-described is obtained inverted " C " shape rubber mandrel 3
" C " shape rubber mandrel 8.Wherein, so-called inverted " C " shape rubber mandrel 3, the simply difference of viewing angle, its essence and " C " shape rubber
Glue core 8 is identical.
In step T2, preforming " work " shape component 67 is got out.Such as, as shown in Figure 3A, currently preferred standard
The process of standby preforming " work " shape component 67 is：Using left web paving mould 131, right web paving mould 132, upper edge strip paving
Mould 141, lower edge strip paving mould 142, upper edge strip laying 161, lower edge strip laying 162, left web laying 171, right web
Laying 172 is combined with upper spill bar 151, lower spill bar 152, and compacting is pre-formed as " work " shape component 67, its shape such as Fig. 3 B institutes
Show.
In fact, for step T2, can there is an a variety of modes for preparing preforming " work " shape component, including it is various
Some modes for preparing preforming " work " shape component, all can be to be added in step T2 of the invention.The invention is intended to
In the technical scheme of protection, not only including the side of above-mentioned specific ready preforming " work " shape component as shown in Figure 3A
Method 67, is additionally included in preforming " work " the shape component prepared using various existing methods in step T2.
It should be noted that above-mentioned step T1 and step T2 are completely self-contained, therefore, step T1 does not exist with step T2
Temporal precedence relationship, can exchange.No matter step T1 or step T2 occurs formerly, is all the skill the invention is intended to protect
Art scheme.
In step T3, as shown in Fig. 4 A-4C and Fig. 5, inverted " C " shape rubber mandrel 3 props up the left inside of " work " shape component 67
Concave side, " C " shape rubber mandrel 8 props up the right concave side of " work " shape component 67, and upper cover plate props up the upside of " work " shape component 67, bottom
Board mold 9 props up the downside of " work " shape component.
Preferably, as shown in Fig. 4 A-4C and Fig. 5, the invention provides the shaped device that one kind is used for " work " shape component,
It includes：Reinforcement upper cover plate 20, it is fixed on length direction for realizing；Base plate mould 9, it is set between reinforcement upper cover plate 20
There are side supports 21 to connect, for realizing that vertical direction is fixed；Inverted " C " shape rubber mandrel 3 interfixes with base plate mould 9, uses
It is laterally fixed in realizing.Specifically, as shown in figs. 4 b and 4 c, the location structure 19 on base plate mould 9 is (such as fixed
Position pin) interfixed with inverted " C " shape rubber mandrel 3, so as to firmly fix the position of inverted " C " shape rubber mandrel 3.It is more excellent
Selection of land, is also so design, such that it is able in its length direction in the opposite side of the length direction of inverted " C " shape rubber mandrel 3
Two ends be all fixed.
As shown in Figure 4 A, the length of " work " shape component 67 can be far longer than its vertical height and transverse width.Employ
Shaped device for " work " shape component of the invention, high uniformity is consistent after it ensure that the shaping of " work " shape component 67, and
And improve the web axis precision of " work " shape component 67.
It is pointed out that it is not unique for the shaped device of " work " shape component, other forms are used in step T3
" work " shape component shaped device, fall within the invention is intended to protect the forming method for " work " shape component technical side
Case.
In step t 4, as shown in figure 5, not propped up for " work " shape component 67 in step T3 is partially filled with edge gear
Bar 7, reinforcement upper cover plate 20, inverted " C " shape rubber mandrel 3, base plate mould 9, " C " shape rubber mandrel 8, edge blend stop 3 outside,
It is packaged using vacuum bag 4, and carries out curing molding, " work " shape composite 76 is obtained after the demoulding, as shown in Figure 3 C, finally
" work " the shape composite 76 of shaping is the very firm form for combining together.In the detailed process of this embodiment, instead
The two ends of the length direction of " C " shape rubber mandrel 3 are interfixed with base plate mould 9 securely, therefore, inverted " C " shape rubber
Core 3 is immovable in the longitudinal direction.Now, the pressure direction shown in arrow as shown in Figure 5, external pressure is actually
Act on inverted " C " shape rubber mandrel 3 and " C " shape rubber mandrel 8, and pressure is evenly transferred on " work " shape component 67, together
When, reinforcement upper cover plate 20 and base plate mould 9 are also evenly transferred to pressure on " work " shape component 67, so as to as shown in figure 5, be formed
To the outer peripheral uniform pressurization effect of entirety of " work " shape component 67, " work " shape for the acquisition excellent performance that can finally embark on journey is combined
Material 76.The pressure of curing molding can be preferably more than 5 atmospheric pressure, such as 6-8 atmospheric pressure, it is also possible to higher or more
It is low, such as 10 atm highers, or such as 3 atm highers, this can be selected according to specific needs.
The forming method for being preferably used in " work " shape component provided by the present invention, its advantage is：It is this kind of preferred
Rubber mandrel can be in fillet area without sandwich of layers, can fit fillet area completely after pressurization, uniformly transfer pressure, prevent fillet
Build bridge or be layered in area, it is ensured that the internal soundness of fillet area.During die assembly, " work " shape part web surface is determined first
Position, then carries out the matched moulds of upper and lower cover plate, can improve the axis precision after product shaping.Coordinate reinforcement upper cover plate and side
Side supporting construction, it is ensured that product is highly consistent during assembling and cure under pressure, between be molded after high consistency it is good.
This kind of process strong applicability, it is adaptable to the moulding process of the composite material structural member of all " work " shape classes.Should
" work " clevis heart rubber mandrel is designed and die assembly method, thoroughly solves the problems, such as such composite material parts pressure transmission,
Part each several part pressure is uniform in autoclave after encapsulation, and internal soundness is excellent, and sandwich rubber can uniform pressurization, core mold design
Mode improves the irregular present situation of " work " shape class component fillet area pressure, while using reinforcement upper cover plate and lateral support structure,
It is good that this kind of technique can prepare internal soundness, and precisely, outward appearance good composite " work " shape class component can be created appearance and size
Considerable economic benefit.
To the described above of embodiment, professional and technical personnel in the field is realized or use the present invention.To embodiment
Various modifications will be apparent for those skilled in the art, generic principles defined herein can be with
Without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will not be limited
In embodiment illustrated herein, all technical schemes obtained by the way of equivalent or equivalent transformation all fall within this hair
In bright protection domain.It is only in sum the preferred embodiment of invention, not for limiting practical range of the invention.
The equivalence changes that i.e. all contents according to scope of the present invention patent are made and modification, all should be technology category of the invention.
Claims (14)
1. a kind of forming method of " C " shape rubber mandrel, comprises the following steps：
Step S1, is laid on ground floor " C " shape half finished rubber (101) recess (121) of rubber mandrel mould (12)
It is interior and be brought into close contact with the recess (121), " C " the shape half finished rubber (101) is compacted using vacuum bag (4)；
Step S2, on the ground floor " C " shape half finished rubber, lays core interlayer (11), using vacuum bag (4) described
Core interlayer (11) is compacted in " C " shape half finished rubber (101)；
Step S4, is packaged " C " the shape half finished rubber for being equipped with core interlayer obtained by previous step as overall,
Enter tank solidification, " C " shape rubber mandrel is formed after the demoulding.
2. the forming method of " C " shape rubber mandrel as claimed in claim 1, it is characterised in that
In step sl, it is compacted 20-30 minutes using vacuum bag；And/or
In step s 2, it is compacted 20-30 minutes using vacuum bag.
3. the forming method of " C " shape rubber mandrel as claimed in claim 1, it is characterised in that step S2 and step S4 it
Between, also including step S3：
Step S3, is equipped with the outer surface of " C " shape half finished rubber described in core interlayer what is obtained as previous step, then
The laying second layer " C " shape half finished rubber (102), using vacuum bag (4) the second layer " C " shape half finished rubber (102)
Compacting.
4. the forming method of " C " shape rubber mandrel as claimed in claim 1, it is characterised in that in step s3, using vacuum
Bag compacting 20-30 minutes.
5. the forming method of " C " the shape rubber mandrel as described in any in claim 1-4, it is characterised in that in step s 2,
The core interlayer (11) is divided into discontinuous three sections, and top, vertical edge and the following straight portion of " C " shape are laid on respectively
On.
6. the forming method of " C " shape rubber mandrel as claimed in claim 5, it is characterised in that be laid on " C " shape top,
Vertical edge, it is following in discontinuous three sections of core interlayers (11) length be top, vertical edge, the length of following respective straight portion
Degree.
7. the forming method of " C " shape rubber mandrel as claimed in claim 6, it is characterised in that in step s 2, the core
The material of interlayer (11) includes：Carbon fiber prepreg, aluminium sheet or steel plate.
8. " C " shape rubber that a kind of forming method of " C " shape rubber mandrel using as described in any in claim 1-7 is obtained
Core.
9. a kind of forming method for " work " shape component, comprises the following steps：
Step T1, using the forming method of " C " the shape rubber mandrel as described in any in claim 1-7, is obtained inverted " C " shape rubber
Glue core and " C " shape rubber mandrel；
Step T2, gets out preforming " work " shape component；
Step T3, the inverted " C " shape rubber mandrel props up the left inside concave side of " work " shape component, and " C " the shape rubber mandrel is propped up
The right concave side of " work " shape component, upper cover plate props up the upside of " work " shape component, and base plate mould props up the downside of " work " shape component；
Step T4, to step T3 in not propped up for " work " shape component be partially filled with edge blend stop, in upper cover plate, inverted " C " shape
Rubber mandrel, base plate mould, " C " shape rubber mandrel, the outside of edge blend stop, are packaged, and solidified using vacuum bag
Shaping, obtains " work " shape composite after the demoulding.
10. the forming method of " work " shape component is used for as claimed in claim 9, it is characterised in that in step T2,
The process for getting out preforming " work " shape component is：Upper edge strip laying, lower edge strip laying, left web laying, the right side
Coxostermum laying is combined with upper spill bar, lower spill bar, and compacting is pre-formed as " work " shape component.
11. forming method for " work " shape component as described in claim 9 or 10, it is characterised in that in step T3,
The inverted " C " shape rubber mandrel or " C " the shape rubber mandrel are interfixed with base plate mould, so as to realize laterally solid
It is fixed；Upper cover plate is connected with base plate mould by side supports, so as to realize that vertical direction is fixed；Upper cover plate is stiffened panel, so that real
It is fixed on existing length direction.
" work " shape that a kind of 12. forming methods for " work " shape component using as described in any in claim 9-11 are obtained
Composite.
A kind of 13. shaped devices for " work " shape component, including：
Upper cover plate, the upper cover plate is stiffened panel, fixed on length direction for realizing；
Base plate mould, it is provided with side supports and is connected between the upper cover plate, for realizing that vertical direction is fixed；
Inverted " C " shape rubber mandrel and " C " the shape rubber mandrel, one of both interfixes with the base plate mould, for reality
It is now laterally fixed.
14. shaped devices for being used for " work " shape component as claimed in claim 13, it is characterised in that installed on base plate mould
There is location structure, fix the two of the two ends of the length direction of inverted " C " shape rubber mandrel or the length direction of " C " shape rubber mandrel
End, makes to be interfixed with the base plate mould by the inverted " C " shape rubber mandrel or " C " the shape rubber mandrel of fixed bit,
For realizing horizontal fixation.
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| CN201611136026.4A CN106799848B (en) | 2016-12-09 | 2016-12-09 | " C " shape rubber mandrel forming method, the forming method for " work " shape component and the molding machine for " work " shape component |
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