CN107538763A - The processing method and curved surface honeycomb of a kind of curved surface honeycomb - Google Patents
The processing method and curved surface honeycomb of a kind of curved surface honeycomb Download PDFInfo
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- CN107538763A CN107538763A CN201710731522.2A CN201710731522A CN107538763A CN 107538763 A CN107538763 A CN 107538763A CN 201710731522 A CN201710731522 A CN 201710731522A CN 107538763 A CN107538763 A CN 107538763A
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Abstract
The invention discloses a kind of processing method of curved surface honeycomb, belong to Computerized Numerical Control processing technology field, including：Three-dimension curved surface honeycomb mathematical modeling is established in modeling software, and the three-dimension curved surface honeycomb mathematical modeling is deployed, obtains planar honeycomb structure mathematical modeling.Obtain the data message of the planar honeycomb structure mathematical modeling.Honeycomb raw material flat board is fixed on the grain-clamping table of Digit Control Machine Tool, the honeycomb raw material flat board is processed by the data message, obtains planar honeycomb structure.To the planar honeycomb structure rubberizing film.Pressure distortion is carried out to the planar honeycomb structure after rubberizing film, obtains three-dimensional honeycomb structure.The three-dimensional honeycomb structure is subjected to thermal deformation and precuring processing.Three-dimensional honeycomb structure through overheating deforming and precuring processing is cooled down, demoulding processing, obtain curved surface honeycomb.It is easy to operate to the accurate cutting of raw material in process of the present invention, it is high in machining efficiency.Make that the parameters such as finished size are accurate, cost is low, practical.
Description
Technical field
The invention belongs to Computerized Numerical Control processing technology field, the cellular processing method of more particularly to a kind of curved surface and curved surface honeycomb.
Background technology
Modern industrial production is increasingly dependent on numerical control method and is processed.In order to improve the performance of product, in numerical control skill
Under the support of art, variation is presented in the processing of part, while a large amount of new materials are applied.But some new materials add
Man-hour, because material is frivolous, poor rigidity or angle is excessive causes processing difficulties.Paper honeycomb has specific strength, specific stiffness high, protrudes
Corrosion resistance and self-extinguishment the advantages that, as a kind of high-performance sandwich material, for manufacturing composite material sandwich structure.Paper wasp
Nest is the light-weighted important materials of high-end equipment, is widely used in the radome, wing and empennage covering, hatch door, lid of aircraft
With the position such as fuselage radome fairing.The composite material sandwich structure used on aircraft is mostly curved-surface structure, therefore curved surface paper honeycomb
Processing have great importance.
Rectangular flat raw material is deformed and is processed again by generally use in a mold in state of the art so that processing
Difficulty increases, and is either processed using manual processing or numerical controlled machinery, the size of its finished product honeycomb and each angle essence
Spend poor, unmanageable.Processed in addition, part is more in the prior art using numerical controlled machinery, it is necessary to additionally manufacture cutting tool or make
With flexible frock, manufacturing cost is added.Especially for the honeycomb of some deep cambers, head and cutter due to lathe
Working position can not be reached, it is necessary to coordinate with manually processing, add cost of labor and join finished size of manufacture etc.
Number low precision.
The content of the invention
It is an object of the invention to provide a kind of processing method of curved surface honeycomb and curved surface honeycomb, by by honeycomb
Raw material flat board first carries out plane machining, then carries out deformation process, and solidification, cooling, the method for demoulding processing, obtains curved surface honeybee
Nest structure.Solve in the prior art due to using manually processing, causing the parameters such as processed product size accurate
Degree is poor, and the problem of labor intensive cost.The technical scheme of the application is without manual processing so that the finished product curved surface finally processed
The parameters precisions such as the size of honeycomb are high, practical.
To solve the above problems, the first aspect of the present invention provides a kind of processing method of curved surface honeycomb, including
Following steps：
Establish three-dimension curved surface honeycomb mathematical modeling in modeling software, and by the three-dimension curved surface honeycomb mathematics
Model deploys, and obtains planar honeycomb structure mathematical modeling；
Obtain the data message of the planar honeycomb structure mathematical modeling；
Honeycomb raw material flat board is fixed on the grain-clamping table of Digit Control Machine Tool, the honeycomb raw material is processed by the data message
Flat board, obtain planar honeycomb structure；
To the planar honeycomb structure rubberizing film；
Pressure distortion is carried out to the planar honeycomb structure after rubberizing film, obtains three-dimensional honeycomb structure；
The three-dimensional honeycomb structure is subjected to thermal deformation and precuring processing；
Three-dimensional honeycomb structure through overheating deforming and precuring processing is cooled down, demoulding processing, obtain curved surface honeycomb
Structure.
Further, described processing method, wherein, the modeling software is Fibersim softwares.Further, it is described
Processing method, wherein, it is described by the three-dimension curved surface honeycomb mathematical modeling deploy, obtain planar honeycomb structure mathematical modulo
Type comprises the following steps：
Extract the mathematical modeling of the lower surface of the three-dimension curved surface honeycomb mathematical modeling；
The deformation angle warning value and limiting value of material are set in the modeling software；
The mathematical modeling of the lower surface is launched into plane；
Using the plane as following table iso-surface patch honeycomb, the planar honeycomb structure mathematical modeling is obtained.
Further, described processing method, wherein,
Described deformation angle warning value scope is 1 degree of -15 degree；
The limits are 2 degree of -30 degree.
Further, described processing method, wherein, the data message of the planar honeycomb structure mathematical modeling includes：
Ramp angles, chamfering, fillet and the thickness of honeycomb.
Further, described processing method, wherein, the honeycomb raw material flat board is aramid fiber paper honeycomb raw material flat board.
Further, described processing method, wherein,
One layer of glued membrane is respectively pasted in upper surface and following face to the planar honeycomb structure.
Further, described processing method, wherein, carrying out pressure distortion to the planar honeycomb structure after rubberizing film includes
Following steps：
The planar honeycomb structure for posting glued membrane is positioned over mould, the planar honeycomb knot is adjusted by laser projection
The position of structure, blend compounds band are fixed；
The planar honeycomb structure for being fixed on mould is put into vacuum bag to be vacuumized, institute is adjusted by laser projection
The position of planar honeycomb structure is stated, the planar honeycomb structure is deformed, obtains the three-dimensional honeycomb structure.
Further, described processing method, wherein,
The three-dimensional honeycomb structure is subjected to thermal deformation and precuring processing, thermal deformation and the precuring processing is entered simultaneously
OK, treatment temperature is 70 DEG C -120 DEG C, and the heat time is 0.5-3 hours.
Further, described processing method, wherein, it is described by the three-dimensional honeycomb knot through overheating deforming and precuring processing
Structure is cooled down by with stove natural cooling, making three-dimensional honeycomb structure be cooled to room temperature.
According to another aspect of the present invention, the curved surface honeycomb obtained according to a kind of processing method of any of the above-described.
The processing method of the use of the present invention, first in strict accordance with the specification to be prepared finished product, enters in modeling software
Row modeling, the parameter such as three-dimension curved surface honeycomb mathematical modeling size of foundation is identical with trimmed size parameter, then by three
Curved surface honeycomb mathematical modeling expansion planar honeycomb structure mathematical modeling is tieed up, so as to obtain planar honeycomb structure mathematical modeling
The data messages such as chamfering, fillet, ramp angles and thickness, in case being used when processing in kind.Raw material is got out, utilizes numerical control machine
The mode of bed machining is progressively processed.Honeycomb raw material flat board is fixed on Digit Control Machine Tool, processed according to the data message of acquisition
Honeycomb raw material flat board makes its ramp angles, chamfering and fillet meet the specification limit of processed finished products, while adjusts thickness to pre-
Scope is determined, to obtain planar honeycomb structure.A tunic, the spy for being fixed on mould are respectively pasted to the upper and lower surface of planar honeycomb structure again
Positioning is put, and is loaded vacuum bag in the lump together with mould and is vacuumized, and brings it about deformation using vacuum pressure until being changed into
The curved surface rate specification of product, obtains three-dimensional honeycomb structure.Now, three-dimensional honeycomb structure is subjected to thermal deformation and precuring is handled, i.e.,
Product is shaped, then cools down, be stripped, improves the mechanical performance of product, obtains product curved surface honeycomb.
The above-mentioned technical proposal of the present invention has following beneficial technique effect：Using modeling software by three-dimension curved surface honeycomb
Structure mathematicses expand into planar honeycomb structure mathematical modeling to obtain the data message of planar honeycomb structure mathematical modeling.Press
Honeycomb raw material flat board is processed according to the data message of gained, obtains planar honeycomb structure.Using the above-mentioned technology of the present invention
The data that scheme obtains needed for digital control processing are accurate data message, and Digit Control Machine Tool can be according to the data message to honeycomb
Raw material flat board is accurately processed and planar honeycomb structure processed, has saved cost of labor.This method avoid adopt in the prior art
Manually the technical scheme of manual processing causes the problem of Product Precision difference processed and uses artificial manual processing cost
The problem of high.On the one hand the present invention adjusts the position of planar honeycomb structure in a mold using the method for laser projection auxiliary；Separately
On the one hand, it is adjusted when position skew occurs during planar honeycomb structure pressure distortion.So that planar honeycomb structure
Can be deformed in mould precalculated position, so as to ensure that the accuracy of structure is higher, prevent because its position skew and caused by most
The problem of structural precision difference of finally finished, occurs.In addition, the whole NC Machining Process of the present invention is first by honeycomb raw material flat board
Carry out plane machining, so as to get planar honeycomb structure it is more accurate；Planar honeycomb structure is subjected to deformation process again, and deformed
The position of moment adjustment planar honeycomb structure during processing, to ensure finally to obtain accurate curved surface honeycomb.It is this
Processing method successfully avoids first deformation process in the prior art, causes the later stage to produce larger mistake by manually processing
Difference；Or the later stage is processed using Digit Control Machine Tool, and the head of lathe and cutter can not reach Working position, cause the finished product of processing
The problem of dimensional parameters are inaccurate.In addition, technical scheme need not be extra when carrying out Digit Control Machine Tool machinery processing
Manufacture cutting tool or using flexible frock, greatly reduce cost；And the technical process of technical solution of the present invention is simple, carries
High efficiency of handing over.The finished product curved surface honeycomb precision prepared using processing method of the present invention is high, and dimensional stability is more preferably, no
It is yielding and collapse, it is practical, there are wide market prospects.
Brief description of the drawings
Fig. 1 is the processing method flow chart of curved surface honeycomb according to embodiments of the present invention；
Fig. 2 is the flow chart of planar honeycomb structure mathematical model method according to embodiments of the present invention；
Fig. 3 is the flow for carrying out pressure distortion processing method to the planar honeycomb structure after pad pasting according to embodiments of the present invention
Figure.
Embodiment
In the description of the invention, it is necessary to which explanation, term " first ", " second ", " the 3rd " are only used for describing purpose,
And it is not intended that instruction or hint relative importance.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It is be combined with each other into conflict can.
A kind of processing method of the curved surface honeycomb provided according to embodiments of the present invention, comprises the following steps：
S1：Establish three-dimension curved surface honeycomb mathematical modeling in modeling software, and by the three-dimension curved surface honeycomb
Mathematical modeling is deployed, and obtains planar honeycomb structure mathematical modeling.
S2：Obtain the data message of the planar honeycomb structure mathematical modeling.
S3：Honeycomb raw material flat board is fixed on the grain-clamping table of Digit Control Machine Tool, the honeycomb is processed by the data message
Raw material flat board, obtains planar honeycomb structure.
S4：To the planar honeycomb structure rubberizing film.
S5：Pressure distortion is carried out to the planar honeycomb structure after rubberizing film, obtains three-dimensional honeycomb structure.
S6：The three-dimensional honeycomb structure is subjected to thermal deformation and precuring processing.
S7：Three-dimensional honeycomb structure through overheating deforming and precuring processing is cooled down, demoulding processing, obtain curved surface honeybee
Nest structure.
The processing method of the use of the present invention, first in strict accordance with the specification to be prepared finished product, enters in modeling software
Row modeling, the parameter such as three-dimension curved surface honeycomb mathematical modeling size of foundation is identical with trimmed size parameter, then by three
Curved surface honeycomb mathematical modeling expansion planar honeycomb structure mathematical modeling is tieed up, so as to obtain planar honeycomb structure mathematical modeling
The data messages such as chamfering, fillet, ramp angles and thickness, in case being used when processing in kind.Raw material is got out, utilizes numerical control machine
The mode of bed machining is progressively processed.Honeycomb raw material flat board is fixed on Digit Control Machine Tool, processed according to the data message of acquisition
Honeycomb raw material flat board makes its ramp angles, chamfering and fillet meet the specification limit of processed finished products, while adjusts thickness to pre-
Scope is determined, to obtain planar honeycomb structure.A tunic, the spy for being fixed on mould are respectively pasted to the upper and lower surface of planar honeycomb structure again
Positioning is put, and is loaded vacuum bag in the lump together with mould and is vacuumized, and brings it about deformation using vacuum pressure until being changed into
The curved surface rate specification of product, obtains three-dimensional honeycomb structure.Now, three-dimensional honeycomb structure is subjected to thermal deformation and precuring is handled, i.e.,
Product is shaped, then cools down, be stripped, improves the mechanical performance of product, obtains product curved surface honeycomb.
Processing method according to above-described embodiment, wherein, the modeling software is Fibersim softwares.Need to illustrate
, establish three-dimension curved surface honeycomb mathematical modeling in the above embodiment of the present invention, and by three-dimension curved surface honeycomb mathematical modeling
The technical scheme of planar honeycomb mathematical modeling is launched into, the present invention can use catia cpd softwares, LaminateTools soft
Part, ESAComp softwares, SYSPLY softwares and Fibersim softwares, preferably Fibersim softwares.As long as the present invention can be realized
In establish three-dimension curved surface honeycomb mathematical modeling, three-dimension curved surface honeycomb mathematical modeling can be launched into plane curved surface honeycomb mathematics
Model, and the technical scheme of the corresponding data message of the model is obtained in protection scope of the present invention.It is in addition, of the present invention
Honeycomb raw material flat board be preferably paper substrate honeycomb raw material flat board, for example, aramid fiber paper honeycomb raw material flat board, but be not limited to aramid fiber paper wasp
Nest raw material flat board.
Processing method according to above-described embodiment, wherein, it is described by the three-dimension curved surface honeycomb mathematical modeling
Expansion, obtains planar honeycomb structure mathematical modeling and comprises the following steps：
S11：Extract the mathematical modeling of the lower surface of the three-dimension curved surface honeycomb mathematical modeling.
S12：The deformation angle warning value and limiting value of material are set in the modeling software.
S13：The mathematical modeling of the lower surface is launched into plane.
S14：Using the plane as following table iso-surface patch honeycomb, the planar honeycomb structure mathematical modeling is obtained.
The mathematics of the upper surface of three-dimension curved surface honeycomb mathematical modeling can also be used in above-mentioned technical proposal of the present invention
Model.Material deformation angle warning value and limiting value are set in modeling software.The mathematical modeling of upper surface is launched into flat
Face, using the plane as upper table iso-surface patch honeycomb, obtain the planar honeycomb structure mathematical modeling.
Processing method according to above-described embodiment, wherein,
Described deformation angle warning value scope is 1 degree of -15 degree；It should be noted that deformation angle warning value is preferred
Scope is：1 degree of -10 degree, more preferably 2 degree -5 degree, such as：2 degree, 3 degree, 4 degree and 5 degree, wherein most preferably 2 degree.
The limits are 2 degree of -30 degree；It should be noted that the preferred scope of described limiting value：2 degree -20
Degree, more preferably 4 degree -10 degree, such as：4 degree, 6 degree, 8 degree and 10 degree, wherein most preferably 4 degree.The present invention is by modeling
The scope of deformation angle warning value and the scope of limiting value are set in software, to improve data when obtaining data in the later stage
Accuracy.
Processing method according to above-described embodiment, wherein, the data message of the planar honeycomb structure mathematical modeling
Including：Ramp angles, chamfering, fillet and the thickness of honeycomb.Numerical control is obtained with the above-mentioned technical proposal of the present invention to add
Data needed for work are accurate data message, and Digit Control Machine Tool can carry out accurate according to the data message to honeycomb raw material flat board
Processing.
Processing method according to above-described embodiment, wherein,
One layer of glued membrane is respectively pasted in upper surface and following face to the planar honeycomb structure.The present invention states technical side on the implementation
, can be according to the specification and the processing purpose increase glued membrane number of plies of institute's processed finished products, so as to improve finished product honeycomb during case
Dimensional stability, make it have the characteristic for being unlikely to deform and collapsing.
Processing method according to above-described embodiment, wherein, pressure change is carried out to the planar honeycomb structure after rubberizing film
Shape comprises the following steps：
S51：The planar honeycomb structure for posting glued membrane is positioned over mould, the plane honeybee is adjusted by laser projection
The position of nest structure, blend compounds band are fixed.
S52：The planar honeycomb structure for being fixed on mould is put into vacuum bag to be vacuumized, adjusted by laser projection
The position of the whole planar honeycomb structure, makes the planar honeycomb structure deform, and obtains the three-dimensional honeycomb structure.
On the one hand the present invention adjusts the pre-determined bit of planar honeycomb structure in a mold using the method for laser projection auxiliary
Put；On the other hand, adjusted in time when position skew occurs during planar honeycomb structure pressure distortion.So that plane
Honeycomb can deform during pressure distortion in mould precalculated position, improve the accuracy of finished product, prevent because of it
The problem of position offsets and causes the structural precision difference of final finished occurs.In addition, above-mentioned technical proposal of the present invention is specifically
Planar honeycomb structure is set to deform by vacuum pressure, the scope of vacuum pressure value is in -60kPa--100kPa, preferred scope
For -80kPa--100kPa, optimal vacuum pressure value is -100kPa.
Processing method according to above-described embodiment, wherein,
The three-dimensional honeycomb structure is subjected to thermal deformation and precuring processing, thermal deformation and the precuring processing is entered simultaneously
OK, treatment temperature is 70 DEG C -120 DEG C.Preferred scope be 80 DEG C -110 DEG C, more preferably 90 DEG C -105 DEG C, such as：90℃、95
DEG C, 100 DEG C and 105 DEG C, wherein, optimum temperature value be 100 DEG C.Heat time is 0.5-3 hours；Preferred scope is 1-2.5
Hour, more preferably 1.5-2.5 hours, such as：1.5 hours, 2 hours and 2.5 hours, wherein, the optimal heat time is 2 small
When.
, wherein it is desired to explanation, technical solution of the present invention carries out the three-dimensional honeycomb structure thermal deformation and pre- simultaneously
Curing process, specifically the precuring of honeycomb surface glued membrane is handled, the glued membrane for making to be attached to planar honeycomb structure upper and lower surface is also with honeybee
Nest malformation solidifies.Curved surface honeycomb effectively is avoided during follow-up use, and its structural edge is shunk and collapsed
Generation, so as to improve the dimensional stability of the finished product honeycomb of processing, make it have the characteristic for being unlikely to deform and collapsing.
Processing method according to above-described embodiment, wherein, it is described by the three-dimensional through overheating deforming and precuring processing
Honeycomb is cooled down with stove natural cooling, three-dimensional honeycomb structure is cooled to room temperature.In addition, three-dimensional honeycomb structure of the present invention
It can be stripped by using releasing agent or be stripped using release cloth after cooling, preferably taken off using release cloth
Mould, obtain final finished product curved surface honeycomb.Whole process of the present invention is first to carry out honeycomb raw material flat board in plane
Digital control processing obtain accurate planar honeycomb structure, then planar honeycomb structure is subjected to deformation process, it is final to obtain curved surface honeybee
Nest structure.This processing method successfully avoids first deformation process in the prior art, causes the later stage by manually processing
Produce larger error；Or the later stage is processed using Digit Control Machine Tool, and the head of lathe and stage property can not reach Working position, make
Into processing finished size parameter it is inaccurate the problem of.
According to another embodiment of the invention, the curved surface honeycomb obtained according to any processing method of the present invention.Make
The finished product curved surface honeycomb precision prepared with processing method of the present invention is high, practical, has wide market prospects
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to embodiment and join
According to accompanying drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright scope.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring this
The concept of invention.
Embodiment
Embodiment 1
A kind of processing method of the curved surface honeycomb provided according to the present embodiment, comprises the following steps：
Three-dimension curved surface honeycomb mathematical modeling is established in Fibersim softwares, extracts the three-dimension curved surface honeycomb
The mathematical modeling of the lower surface of mathematical modeling；
2 degree of 1 degree of the deformation angle warning value and limiting value of material are set in the modeling software；
The mathematical modeling of the lower surface is launched into plane；
Using the plane as following table iso-surface patch honeycomb, the planar honeycomb structure mathematical modeling is obtained；
Obtain the data message of the planar honeycomb structure mathematical modeling, including ramp angles, chamfering, fillet and thickness
Degree；
Aramid fiber paper honeycomb raw material flat board is fixed on the grain-clamping table of Digit Control Machine Tool, the virtue is processed by the data message
Synthetic fibre paper honeycomb raw material flat board, obtains plane aramid fiber paper honeycomb structure；
To the plane aramid fiber paper honeycomb structure rubberizing film；
The plane aramid fiber paper honeycomb structure for posting glued membrane is positioned over mould, and mould is fixed on pressure sensitive adhesive tape
On precalculated position；
The position of the plane aramid fiber paper honeycomb structure is adjusted by laser projection, makes plane aramid fiber paper honeycomb structure with swashing
Light projection fits like a glove；
The plane aramid fiber paper honeycomb structure for being fixed on mould precalculated position is put into vacuum bag to be vacuumized, its
In, vacuum pressure is -60kPa, the plane aramid fiber paper honeycomb structure is deformed, and obtains the three-dimensional aramid fiber paper honeycomb knot
Structure；If plane aramid fiber paper honeycomb structure position during pressure distortion shifts, adjust in time to complete with laser projection
Identical position entirely；
By the three-dimensional aramid fiber paper honeycomb structure at 70 DEG C, carry out honeycomb thermal deformation in 3 hours and honeycomb surface glued membrane are heated
Precuring.By the three-dimensional aramid fiber paper honeycomb structure through overheating deforming and precuring processing with stove natural cooling, drop its temperature
To room temperature, then it is stripped, obtains curved surface aramid fiber paper honeycomb structure, the dimensional stability of the curved surface aramid fiber paper honeycomb structure is more
It is good, it is unlikely to deform and collapses.
Embodiment 2
A kind of processing method of the curved surface honeycomb provided according to the present embodiment, comprises the following steps：
Three-dimension curved surface honeycomb mathematical modeling is established in Fibersim softwares, extracts the three-dimension curved surface honeycomb
The mathematical modeling of the lower surface of mathematical modeling；
4 degree of 2 degree of the deformation angle warning value and limiting value of material are set in the modeling software；
The mathematical modeling of the lower surface is launched into plane；
Using the plane as following table iso-surface patch honeycomb, the planar honeycomb structure mathematical modeling is obtained；
Obtain the data message of the planar honeycomb structure mathematical modeling, including ramp angles, chamfering, fillet and thickness
Degree；
Aramid fiber paper honeycomb raw material flat board is fixed on the grain-clamping table of Digit Control Machine Tool, the virtue is processed by the data message
Synthetic fibre paper honeycomb raw material flat board, obtains plane aramid fiber paper honeycomb structure；
To the plane aramid fiber paper honeycomb structure rubberizing film；
The plane aramid fiber paper honeycomb structure for posting glued membrane is positioned over mould, and mould is fixed on pressure sensitive adhesive tape
On precalculated position；
The position of the plane aramid fiber paper honeycomb structure is adjusted by laser projection, makes plane aramid fiber paper honeycomb structure with swashing
Light projection fits like a glove；
The plane aramid fiber paper honeycomb structure for being fixed on mould precalculated position is put into vacuum bag to be vacuumized, its
In, vacuum pressure is -100kPa, the plane aramid fiber paper honeycomb structure is deformed, and obtains the three-dimensional aramid fiber paper honeycomb
Structure；If plane aramid fiber paper honeycomb structure position during pressure distortion shifts, adjust in time to laser projection
The position to fit like a glove；
By the three-dimensional aramid fiber paper honeycomb structure at 100 DEG C, carry out honeycomb thermal deformation in 2 hours and honeycomb surface glued membrane are heated
Precuring.
By the three-dimensional aramid fiber paper honeycomb structure through overheating deforming and precuring processing with stove natural cooling, it is down to its temperature
Room temperature, then be stripped, curved surface aramid fiber paper honeycomb structure is obtained, the dimensional stability of the curved surface honeybee aramid paper nest structure is more preferable,
It is unlikely to deform and collapses.
Embodiment 3
A kind of processing method of the curved surface honeycomb provided according to the present embodiment, comprises the following steps：
Three-dimension curved surface honeycomb mathematical modeling is established in Fibersim softwares, extracts the three-dimension curved surface honeycomb
The mathematical modeling of the lower surface of mathematical modeling；
30 degree of 15 degree of the deformation angle warning value and limiting value of material are set in the modeling software；
The mathematical modeling of the lower surface is launched into plane；
Using the plane as following table iso-surface patch honeycomb, the planar honeycomb structure mathematical modeling is obtained；
Obtain the data message of the planar honeycomb structure mathematical modeling, including ramp angles, chamfering, fillet and thickness
Degree；
Aramid fiber paper honeycomb raw material flat board is fixed on the grain-clamping table of Digit Control Machine Tool, the virtue is processed by the data message
Synthetic fibre paper honeycomb raw material flat board, obtains plane aramid fiber paper honeycomb structure；
To the plane aramid fiber paper honeycomb structure rubberizing film；
The plane aramid fiber paper honeycomb structure for posting glued membrane is positioned over mould, and mould is fixed on pressure sensitive adhesive tape
On precalculated position；
The position of the plane aramid fiber paper honeycomb structure is adjusted by laser projection；
The plane aramid fiber paper honeycomb structure for being fixed on mould precalculated position is put into vacuum bag to be vacuumized, its
In, vacuum pressure is -100kPa, the plane aramid fiber paper honeycomb structure is deformed, and obtains the three-dimensional aramid fiber paper honeycomb
Structure；If plane aramid fiber paper honeycomb structure position during pressure deformation shifts, adjustment is as laser projection in time
The position to fit like a glove；
By the three-dimensional aramid fiber paper honeycomb structure at 120 DEG C, carry out honeycomb thermal deformation in 0.5 hour and honeycomb surface glue are heated
The precuring of film.By the three-dimensional aramid fiber paper honeycomb structure through overheating deforming and precuring processing with stove natural cooling, make its temperature
Room temperature is down to, then is stripped, obtains curved surface aramid fiber paper honeycomb structure, the dimensional stability of the curved surface aramid fiber paper honeycomb structure is more
It is good, it is unlikely to deform and collapses.
The present invention is described above by reference to embodiments of the invention.But these embodiments are used for the purpose of saying
Bright purpose, and be not intended to limit the scope of the present invention.The scope of the present invention is limited by appended claims and its equivalent.
The scope of the present invention is not departed from, those skilled in the art can make a variety of substitutions and modifications, and these substitutions and modifications should all fall
Within the scope of the present invention.
Although embodiments of the present invention are described in detail, it should be understood that, without departing from the present invention's
In the case of spirit and scope, embodiments of the present invention can be made with various changes, replacement and change.
Obviously, above-described embodiment is only intended to clearly illustrate example, and is not the restriction to embodiment.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of change or
Change.There is no necessity and possibility to exhaust all the enbodiments.And the obvious change thus extended out or
Among changing still in the protection domain of the invention.
It is contemplated that protect the processing method and curved surface honeycomb of a kind of curved surface honeycomb.Wherein, a kind of curved surface
The processing method of honeycomb, three-dimension curved surface honeycomb mathematical modeling is expanded into planar honeycomb structure number using modeling software
Model is learned to obtain the data message of planar honeycomb structure mathematical modeling.Honeycomb raw material flat board is entered according to the data message of gained
Row processing, obtains planar honeycomb structure.The data needed for obtained digital control processing that apply the technical scheme of the present invention are accurate
Data message, Digit Control Machine Tool can accurately be processed and planar honeycomb knot processed according to the data message to honeycomb raw material flat board
Structure, cost of labor is saved.This method avoid cause to process using the technical scheme manually processed in the prior art
Product Precision difference the problem of and using artificial manual processing cost it is high the problem of.The side that the present invention is aided in using laser projection
Method, on the one hand adjust the position of planar honeycomb structure in a mold；On the other hand, during planar honeycomb structure pressure distortion
Generation position is adjusted when offseting.So that planar honeycomb structure can deform in mould precalculated position, so as to ensure
The accuracy of structure is higher, prevent because its position skew and caused by final finished structural precision difference the problem of occur.In addition,
NC Machining Process of the invention whole is that honeycomb raw material flat board first is carried out into plane machining, so as to get planar honeycomb structure it is more smart
Really；Planar honeycomb structure is subjected to deformation process again, and the moment adjusts the position of planar honeycomb structure during deformation process
Put, to ensure finally to obtain accurate curved surface honeycomb.This processing method successfully avoids first to be deformed in the prior art
Processing, the later stage is caused to produce larger error by manually processing；Or the later stage is processed using Digit Control Machine Tool, and lathe
Head and stage property can not reach Working position, cause processing finished size parameter it is inaccurate the problem of.In addition, the skill of the present invention
Art scheme need not additionally manufacture cutting tool or using flexible frock when carrying out Digit Control Machine Tool machinery processing, greatly reduce
Cost；And the technical process of technical solution of the present invention is simple, improves efficiency of handing over.Prepared using processing method of the present invention
Finished product curved surface honeycomb precision is high, practical, has wide market prospects.
It should be appreciated that the above-mentioned embodiment of the present invention is used only for exemplary illustration or explains the present invention's
Principle, without being construed as limiting the invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.In addition, appended claims purport of the present invention
Covering the whole changes fallen into scope and border or this scope and the equivalents on border and repairing
Change example.
Claims (10)
1. a kind of processing method of curved surface honeycomb, it is characterised in that comprise the following steps：
Establish three-dimension curved surface honeycomb mathematical modeling in modeling software, and by the three-dimension curved surface honeycomb mathematical modeling
Expansion, obtains planar honeycomb structure mathematical modeling；
Obtain the data message of the planar honeycomb structure mathematical modeling；
Honeycomb raw material flat board is fixed on the grain-clamping table of Digit Control Machine Tool, the honeycomb raw material is processed by the data message and puts down
Plate, obtain planar honeycomb structure；
To the planar honeycomb structure rubberizing film；
Pressure distortion is carried out to the planar honeycomb structure after rubberizing film, obtains three-dimensional honeycomb structure；
The three-dimensional honeycomb structure is subjected to thermal deformation and precuring processing；
Three-dimensional honeycomb structure through overheating deforming and precuring processing is cooled down, demoulding processing, obtain curved surface honeycomb.
2. processing method according to claim 1, wherein, the modeling software is Fibersim softwares.
3. processing method according to claim 1, wherein, it is described by the three-dimension curved surface honeycomb mathematical modeling exhibition
Open, obtain planar honeycomb structure mathematical modeling and comprise the following steps：
Extract the mathematical modeling of the lower surface of the three-dimension curved surface honeycomb mathematical modeling；
The deformation angle warning value and limiting value of material are set in the modeling software；
The mathematical modeling of the lower surface is launched into plane；
Using the plane as following table iso-surface patch honeycomb, the planar honeycomb structure mathematical modeling is obtained.
4. processing method according to claim 3, wherein,
Described deformation angle warning value scope is 1 degree of -15 degree；
The limits are 2 degree of -30 degree.
5. processing method according to claim 1, wherein, the data packets of the planar honeycomb structure mathematical modeling
Include：Ramp angles, chamfering, fillet and the thickness of honeycomb.
6. processing method according to claim 1, wherein,
One layer of glued membrane is respectively pasted in upper surface and following face to the planar honeycomb structure.
7. processing method according to claim 1, wherein, pressure distortion bag is carried out to the planar honeycomb structure after rubberizing film
Include following steps：
The planar honeycomb structure for posting glued membrane is positioned over mould, the planar honeycomb structure is adjusted by laser projection
Position, blend compounds band are fixed；
The planar honeycomb structure for being fixed on mould is put into vacuum bag to be vacuumized, and described in being adjusted by laser projection
The position of planar honeycomb structure, the planar honeycomb structure is deformed, obtain the three-dimensional honeycomb structure.
8. processing method according to claim 1, wherein,
The three-dimensional honeycomb structure is subjected to thermal deformation and precuring processing, thermal deformation and the precuring processing is carried out simultaneously,
Treatment temperature is 70 DEG C -120 DEG C, and the heat time is 0.5-3 hours.
9. processing method according to claim 1, wherein, it is described by the three-dimensional honeycomb through overheating deforming and precuring processing
Structure is cooled down by with stove natural cooling, making three-dimensional honeycomb structure be cooled to room temperature.
10. the curved surface honeycomb that the processing method according to claim any one of 1-9 obtains.
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| CN114311720A (en) * | 2021-12-03 | 2022-04-12 | 昌河飞机工业（集团）有限责任公司 | Process method for processing large-curvature over-stretched honeycomb for U-shaped fairing parts |
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