CN117534298A - Aircraft observation window glass forming die and manufacturing method - Google Patents
Aircraft observation window glass forming die and manufacturing method Download PDFInfo
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- CN117534298A CN117534298A CN202311393892.1A CN202311393892A CN117534298A CN 117534298 A CN117534298 A CN 117534298A CN 202311393892 A CN202311393892 A CN 202311393892A CN 117534298 A CN117534298 A CN 117534298A
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- window glass
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- 239000005357 flat glass Substances 0.000 title claims abstract description 114
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 59
- 238000007496 glass forming Methods 0.000 title claims description 93
- 239000002023 wood Substances 0.000 claims abstract description 59
- 238000000034 method Methods 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 43
- 230000008569 process Effects 0.000 claims abstract description 27
- 235000011615 Pinus koraiensis Nutrition 0.000 claims abstract description 19
- 240000007263 Pinus koraiensis Species 0.000 claims abstract description 19
- 239000003086 colorant Substances 0.000 claims abstract description 10
- 238000000465 moulding Methods 0.000 claims description 76
- 230000007704 transition Effects 0.000 claims description 42
- 239000011521 glass Substances 0.000 claims description 27
- 239000011159 matrix material Substances 0.000 claims description 26
- 235000018782 Dacrydium cupressinum Nutrition 0.000 claims description 14
- 240000006055 Dacrydium cupressinum Species 0.000 claims description 14
- 235000013697 Pinus resinosa Nutrition 0.000 claims description 14
- 238000000227 grinding Methods 0.000 claims description 12
- 239000004816 latex Substances 0.000 claims description 11
- 229920000126 latex Polymers 0.000 claims description 11
- 239000003822 epoxy resin Substances 0.000 claims description 9
- 229920000647 polyepoxide Polymers 0.000 claims description 9
- 239000000839 emulsion Substances 0.000 claims description 8
- 239000010410 layer Substances 0.000 claims description 7
- 238000004040 coloring Methods 0.000 claims description 6
- 239000004593 Epoxy Substances 0.000 claims description 4
- 239000006004 Quartz sand Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 4
- 239000002344 surface layer Substances 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000007711 solidification Methods 0.000 claims description 3
- 230000008023 solidification Effects 0.000 claims description 3
- 238000007493 shaping process Methods 0.000 abstract description 15
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000005816 glass manufacturing process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052909 inorganic silicate Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/0013—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles
- B27M3/0086—Manufacture or reconditioning of specific semi-finished or finished articles of composite or compound articles characterised by connecting using glue
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
- B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
- C03B11/06—Construction of plunger or mould
- C03B11/08—Construction of plunger or mould for making solid articles, e.g. lenses
- C03B11/084—Construction of plunger or mould for making solid articles, e.g. lenses material composition or material properties of press dies therefor
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention belongs to the field of manufacturing of aviation manufacturing technical process equipment; the invention relates to a shaping mould and manufacturing approach of the observation window glass of the aircraft, the shaping mould, including shaping upper mould and shaping lower mould, said shaping upper mould and shaping lower mould are made by wooden material, shaping upper mould and shaping lower mould splice according to the direction of grain of timber equally, the mould of the invention adopts the wooden structure, has guaranteed intensity, stiffness of the basal body effectively, and consider the dried Korean pine to expand little, difficult to produce characteristics such as shrink, etc., very big assurance the shaping quality of the observation window glass of the aircraft, in addition, the invention, the upper and lower moulds of the mould adopt a new method, namely imitate the observation window glass thickness of the aircraft (namely the material thickness) with the wood strip, spread the colorant to block, split the area, repeatedly grind the die body profile.
Description
Technical Field
The invention belongs to the field of manufacturing of aviation manufacturing technical process equipment; relates to a molding die for an aircraft observation window glass and a manufacturing method thereof.
Background
The aircraft observation window glass belongs to aviation glass, is formed by compounding inorganic silicate glass and organic transparent materials, and is an important optical structural member on an aircraft. The structural member of the aircraft must have sufficient strength, sufficient optical performance and sufficient service performance to bear the requirements of pressure, load, safety, frost prevention and the like in the high-altitude cabin. The forming process is to cool the molten observation window glass to the plastic state required during forming by utilizing the viscosity characteristic of the observation window glass of the liquid aircraft; secondly, placing the plastic state aircraft observation window glass in a lower die of a forming die, and simultaneously combining an upper die with the lower die according to a die positioning device for controlling the thickness of the aircraft observation window glass and forming the aircraft observation window glass; cooling the aircraft viewing window glass to a solidified state again in a mold closing state; finally, taking off the mould and carrying out appearance modification on the aircraft observation window glass. Particularly, when the aircraft observation window glass is cooled from a molten drop state to a solid state according to the molding of the mold, the surface of the mold is heated and expanded to generate shrinkage, so that fine cracks are generated on the surface of the aircraft observation window glass product, and the material, the positioning precision and the surface roughness of the mold have great influence on the molding quality of the aircraft observation window glass product; meanwhile, since the glass of the aircraft observation window is assembled with the metal window frame edge, the thickness of the edge position of the aircraft observation window glass needs to be accurately controlled. In view of the above-mentioned various situations, it is necessary to start from the aspects of mold structure, materials and process flow, and a molding mold for an aircraft viewing window glass and a manufacturing method thereof are provided.
Disclosure of Invention
The invention aims to: the invention provides an aircraft observation window glass forming die made of a wooden material and a self-manufacturing method thereof, which saves cost and improves the quality of aircraft observation window glass.
Technical proposal
The utility model provides an aircraft observation window glass forming die, includes shaping upper die and shaping lower mould, shaping upper die and shaping lower mould be made by wooden material, shaping upper die and shaping lower mould are according to equidistant concatenation of timber grain direction.
Further, wooden handles are arranged on two sides of the upper molding die.
Further, locating blocks are arranged on two sides of the upper forming die, two locating blocks are arranged on the lower forming die, locating grooves are formed between the two locating blocks on the lower forming die, and the locating blocks on the upper forming die are matched with the locating grooves of the lower forming die to locate the upper forming die and the lower forming die.
Further, the upper molding die is of a hollow structure in the middle, so that the contact surface between glass and the die in the molding process is reduced, and the defects of bubbles, negative marks and the like generated in the glass manufacturing process are effectively avoided; meanwhile, the structure with the hollow middle part is adopted, after the upper and lower moulds of the glass forming mould of the aircraft observation window are closed, the thickness of the glass edge can be effectively controlled, and the assembly gap between the glass and the metal frame edge of the aircraft observation window is ensured.
Further, the upper molding die and the lower molding die are formed by splicing Korean pine wood at equal intervals according to the wood grain direction.
The manufacturing method of the aircraft observation window glass forming die comprises the following steps:
step 1, lofting according to an aircraft cabin sample piece, and copying a transition female die;
firstly, brushing a release agent on the surface of a sample piece of an aircraft cabin, placing a 'transition female die' frame on the surface of the sample piece of the aircraft cabin, and sealing the periphery of the frame by using epoxy resin; secondly, pouring the epoxy resin surface layer into the frame, then tamping the epoxy quartz sand, tamping the inside and tamping the bottom surface; finally, stripping after integral solidification to finish the manufacture of the transition female die;
step 2: equidistant arrangement of the battens with grooves on the 'transition female die' molded surface for manufacturing the material thickness, wherein the spacing of the battens is 30 mm, grooves are formed along the length direction of the battens, and the groove width is 3 mm;
step 3: lower die matrix for manufacturing glass forming die of aircraft observation window
Firstly, blanking dry red pine into a plurality of red pine boards with equal width according to the size requirement and the wood grain direction; secondly, planing the outer surface of the Korean pine board; thirdly, splicing according to the grain direction of the wood, after determining the tree nodes counteracting the self material of the wood, bonding and fixing the tree nodes layer by using emulsion, ensuring that no tree nodes exist on the working surface, and finally, completing the manufacture of the lower die matrix of the aircraft observation window glass forming die after the emulsion is completely solidified;
step 4: clamping the transition female die and the lower die matrix of the aircraft observation window glass forming die, smearing coloring agent on the wood strip with the groove on the transition female die, continuously clamping the lower die matrix and the transition female die, and repeatedly grinding the lower die matrix of the aircraft observation window glass forming die until the molded surface meets the molding requirement to obtain the lower die of the aircraft observation window glass forming die;
step 5: according to the process method in the step 2, the wood strip with the groove is arranged on the surface of the lower die of the aircraft observation window glass forming die to manufacture the material thickness;
step 6: manufacturing an upper mould of an aircraft observation window glass forming mould according to the process method in the step 3; namely: firstly, blanking dry red pine into a plurality of red pine boards with equal width according to the size requirement and the wood grain direction; secondly, planing the outer surface of the Korean pine board; thirdly, splicing according to the grain direction of the wood, after determining the tree nodes counteracting the self material of the wood, bonding and fixing the tree nodes layer by using latex, ensuring that no tree nodes exist on the working surface, and finally, completing the manufacture of the upper die matrix of the aircraft observation window glass forming die after the latex is completely solidified;
step 7: according to the process method in the step 4, the lower mould of the aircraft observation window glass forming mould and the upper mould of the aircraft observation window glass forming mould are clamped, the upper mould profile of the aircraft observation window glass forming mould is repeatedly ground and repaired continuously, and after the upper mould of the aircraft observation window glass forming mould is manufactured, the wood strip on the lower mould profile of the aircraft observation window glass forming mould is removed, and the mould profile cannot be damaged during the removal;
step 8: two sides of a lower die of the aircraft observation window glass forming die and an upper die of the aircraft observation window glass forming die are provided with a wooden positioning block and a wooden handle; the positioning block is used for ensuring that the upper die of the glass forming die of the observation window of the airplane is in a die closing state and is carried out in a fixed state before being installed, so that the positions of the upper die and the lower die are prevented from being displaced.
In step 1, the bottom surface of the transition female die frame is ensured to be perpendicular to the normal direction of the observation window of the aircraft cabin sample piece in the manufacturing process of the transition female die.
Further, in step 2 and step 5, the stock thickness is the actual thickness of the aircraft viewing window glass plus the felt thickness.
In step 4 and step 7, the lower molding surface of the aircraft observation window glass molding die and the upper molding surface of the aircraft observation window glass molding die are both required to be smooth and streamline, and the overall molding surface coloring rate is more than or equal to 85%.
Advantageous effects
The mold adopts a wooden structure, effectively ensures the strength and rigidity of a matrix, and greatly ensures the molding quality of the aircraft observation window glass by considering the characteristics of small thermal expansion, difficult shrinkage and the like of the dried Korean pine, in addition, the upper and lower molds of the mold adopt a novel method when being manufactured, namely, the thickness (namely, the thickness of the material) of the aircraft observation window glass is simulated by using wood strips, and the wood strips are smeared with coloring agents to divide, divide areas and repeatedly grind and repair the molded surface of the mold body, thereby having the following advantages:
the method belongs to the invention patent. The method is different from the conventional method for molding the aircraft observation window glass by using the mold:
(1) In the invention, the aircraft observation window glass molding die material adopts Korean pine with small thermal expansion coefficient; compared with metal materials such as aluminum and iron, the wood mold has low heat conduction performance, the phenomenon that glass molding is affected by temperature dip can not occur when glass is molded, and the wood mold is small in thermal expansion and basically not easy to shrink, so that glass molding is effectively ensured.
(2) The invention relates to an aircraft observation window glass forming die which is formed by splicing according to the grain direction of wood materials, eliminating the tree nodes of the wood materials, and then bonding the tree nodes one by using latex.
(3) According to the invention, the side surface of the aircraft observation window glass forming die is provided with the wooden handle and the wooden upper and lower die positioning devices, so that the die assembly positioning of the upper and lower dies is facilitated, and the lifting and the taking of personnel are facilitated.
(4) In the manufacturing process of the molding die for the aircraft observation window glass, wood strips are used for grooving at equal intervals of about 30 mm, the groove width is about 3 mm and is not opened, so that the actual thickness of the aircraft observation window glass is controlled; effectively ensuring the die closing gap of the upper die and the lower die.
(5) The invention relates to an aircraft observation window glass forming die which is manufactured by repeatedly copying and grinding for many times by taking an aircraft cabin sample as a manufacturing basis.
Drawings
FIG. 1 is a schematic diagram of a manufacturing process of a cabin sample piece reproduction transition female die; the method comprises the setting mode of the bottom surface of the transition female die in the reproduction process, and the standard of subsequent manufacturing is effectively ensured.
Fig. 2 is a schematic diagram of a process of using battens to form grooves at equal intervals of about 30 mm, and using a transition female die with a groove width of about 3 mm to form a working fabric thickness; including the direction and location of the batten, slot installation.
FIG. 3 is a schematic view of a lower mold base of an aircraft windshield mold, including a process of splicing mold bases according to the grain direction of wood.
FIG. 4 is a schematic diagram showing a manufacturing method of reproducing the lower mold of the molding die of the glass for the aircraft viewing window by the transition female die, comprising the process of brushing the colorant with the transition female die and grinding the lower mold of the molding die of the glass for the aircraft viewing window.
FIG. 5 is a schematic view of the lower mold of the molded glass mold of the aircraft viewing window after finishing the processing;
fig. 6 is a schematic diagram of a manufacturing process of forming a mold shell fabric thickness under a window glass forming mold of an airplane with a groove width of about 3 mm by using battens at equal intervals; including the direction and location of the batten, slot installation.
FIG. 7 is a schematic view showing a process of polishing an upper mold using a lower mold brush colorant of an aircraft windshield molding; comprises a hollow structure in the middle of the upper die body.
Fig. 8 is a schematic view of the positioning device of the upper and lower molds of the molding mold of the aircraft observation window glass, and the position of the wood handle.
Detailed Description
The invention is further described with reference to the accompanying drawings:
one embodiment of the invention is: the molding die comprises an upper molding die and a lower molding die, wherein the upper molding die and the lower molding die are made of wood materials, and are spliced at equal intervals according to the wood grain direction; wooden handles are arranged on two sides of the upper molding die; the two sides of the upper molding die are provided with positioning blocks, the lower molding die is provided with two positioning blocks, a positioning groove is formed between the two positioning blocks on the lower molding die, the positioning blocks on the upper molding die are matched with the positioning grooves of the lower molding die, and the positioning of the upper molding die and the lower molding die is realized.
In the embodiment, the upper forming die is of a hollow structure in the middle, so that the contact surface between glass and the die in the forming process is reduced, and the defects of bubbles, negative marks and the like generated in the glass manufacturing process are effectively avoided; meanwhile, the structure with the hollow middle part is adopted, after the upper and lower moulds of the glass forming mould of the aircraft observation window are closed, the thickness of the glass edge can be effectively controlled, and the assembly gap between the glass and the metal frame edge of the aircraft observation window is ensured.
In this embodiment, the upper molding die and the lower molding die are formed by splicing Korean pine wood at equal intervals in the wood grain direction. In the invention, the aircraft observation window glass molding die material adopts Korean pine with small thermal expansion coefficient; compared with metal materials such as aluminum and iron, the wood mold has low heat conduction performance, the phenomenon that glass molding is affected by temperature dip can not occur when glass is molded, and the wood mold is small in thermal expansion and basically not easy to shrink, so that glass molding is effectively ensured. The invention relates to an aircraft observation window glass forming die which is formed by splicing according to the grain direction of wood materials, eliminating the tree nodes of the wood materials, and then bonding the tree nodes one by using latex.
The embodiment also provides a manufacturing method of the aircraft observation window glass forming die, which comprises the following steps:
step 1, lofting according to an aircraft cabin sample piece, and copying a transition female die;
firstly, brushing a release agent on the surface of a sample piece of an aircraft cabin, placing a 'transition female die' frame on the surface of the sample piece of the aircraft cabin, and sealing the periphery of the frame by using epoxy resin; secondly, pouring the epoxy resin surface layer into the frame, then tamping the epoxy quartz sand, tamping the inside and tamping the bottom surface; finally, stripping after integral solidification to finish the manufacture of the transition female die;
step 2: equidistant arrangement of the battens with grooves on the 'transition female die' molded surface for manufacturing the material thickness, wherein the spacing of the battens is 30 mm, grooves are formed along the length direction of the battens, and the groove width is 3 mm;
step 3: lower die matrix for manufacturing glass forming die of aircraft observation window
Firstly, blanking dry red pine into a plurality of red pine boards with equal width according to the size requirement and the wood grain direction; secondly, planing the outer surface of the Korean pine board; thirdly, splicing according to the grain direction of the wood, after determining the tree nodes counteracting the self material of the wood, bonding and fixing the tree nodes layer by using emulsion, ensuring that no tree nodes exist on the working surface, and finally, completing the manufacture of the lower die matrix of the aircraft observation window glass forming die after the emulsion is completely solidified;
step 4: clamping the transition female die and the lower die matrix of the aircraft observation window glass forming die, smearing coloring agent on the wood strip with the groove on the transition female die, continuously clamping the lower die matrix and the transition female die, and repeatedly grinding the lower die matrix of the aircraft observation window glass forming die until the molded surface meets the molding requirement to obtain the lower die of the aircraft observation window glass forming die;
step 5: according to the process method in the step 2, the wood strip with the groove is arranged on the surface of the lower die of the aircraft observation window glass forming die to manufacture the material thickness;
step 6: manufacturing an upper mould of an aircraft observation window glass forming mould according to the process method in the step 3; namely: firstly, blanking dry red pine into a plurality of red pine boards with equal width according to the size requirement and the wood grain direction; secondly, planing the outer surface of the Korean pine board; thirdly, splicing according to the grain direction of the wood, after determining the tree nodes counteracting the self material of the wood, bonding and fixing the tree nodes layer by using latex, ensuring that no tree nodes exist on the working surface, and finally, completing the manufacture of the upper die matrix of the aircraft observation window glass forming die after the latex is completely solidified;
step 7: according to the process method in the step 4, the lower mould of the aircraft observation window glass forming mould and the upper mould of the aircraft observation window glass forming mould are clamped, the upper mould profile of the aircraft observation window glass forming mould is repeatedly ground and repaired continuously, and after the upper mould of the aircraft observation window glass forming mould is manufactured, the wood strip on the lower mould profile of the aircraft observation window glass forming mould is removed, and the mould profile cannot be damaged during the removal;
step 8: two sides of a lower die of the aircraft observation window glass forming die and an upper die of the aircraft observation window glass forming die are provided with a wooden positioning block and a wooden handle; the positioning block is used for ensuring that the upper die of the glass forming die of the observation window of the airplane is in a die closing state and is carried out in a fixed state before being installed, so that the positions of the upper die and the lower die are prevented from being displaced.
A second embodiment of the invention is:
the manufacturing method of the molding die for the aircraft observation window glass in the embodiment is based on an aircraft cabin sample. Firstly, directly turning a transition female die according to the sample piece; secondly, pasting, thick-material copying and grinding a lower die of an aircraft observation window glass forming die on the working molded surface of the transition female die; finally, taking the working profile of the lower die of the aircraft observation window glass forming die as a reference, and copying and grinding the upper die of the aircraft observation window glass forming die after the batten is stuck to be thick; after the handle and the positioning device are installed, the manufacturing process of the die is completed.
The method specifically comprises the following steps:
(1) Firstly, lofting according to a cockpit sample piece of an airplane, and directly turning a transition female die; the transition die profile portion does not need to be made thick (i.e., the aircraft windshield thickness).
(2) And (3) according to the appearance size lofting of the transition female die in the step (1), selecting dried Korean pine for blanking and blocking, and bonding the dried Korean pine and the dried Korean pine together by latex to form a lower die matrix of the forming die of the glass of the aircraft observation window.
(3) And (3) coating a coloring agent on the upper padding thickness of the transition female die, and grinding the lower die surface of the aircraft observation window glass forming die to finish the manufacture of the lower die of the aircraft observation window glass forming die.
(4) According to the lower mould of the aircraft observation window glass forming mould, dry Korean pine is selected for blanking and blocking, and latex is used for bonding together to manufacture an upper mould matrix of the aircraft observation window glass forming mould.
(5) And (3) coating a pad on the upper die of the aircraft observation window glass forming die to be thick, coating a coloring agent, and grinding the upper die surface of the aircraft observation window glass forming die to finish the manufacture of the upper die of the aircraft observation window glass forming die. Wherein, in the grinding process, the side surfaces of the upper die and the lower die are provided with a die clamping positioner and a wooden handle.
In the above steps (1) to (5):
the material used for the aircraft observation window glass forming die is Korean pine, and the material is treated by a drying kiln before use, so that the water content is ensured to be less than or equal to 15%, and the performance of the wooden material is better exerted.
The matrix of the aircraft observation window glass forming die is spliced according to the grain direction of the wood material in the manufacturing process, after the tree nodes counteracting the self material of the wood are determined, the matrix is bonded one by using latex, and the condition that the tree nodes cannot exist on the working molded surface is ensured.
The lower die of the aircraft observation window glass forming die is of a solid structure, and the upper die is of a hollow structure in the middle, so that impurities such as 'negative marks' and the like generated by insufficient surface finish of the die (glass forming process) are effectively prevented from affecting the glass quality; meanwhile, the middle hollow structure of the lower die effectively ensures the assembly gap between the glass edge of the aircraft observation window and the metal window frame edge of the aircraft.
In the manufacturing process of the upper and lower moulds of the glass forming mould of the aircraft observation window, all the material thicknesses ensuring the mould closing gap of the upper and lower moulds are manufactured in a mode that wood strips are equally spaced for about 30 mm and are grooved, and the groove width is about 3 mm and is not opened. And the working clearance value of the upper die and the lower die is equal to the thickness of the observation window glass of the airplane plus the thickness of felt (auxiliary material in the glass forming process).
When the upper and lower moulds are used for coloring and grinding, the coloring rate of the whole working surface is more than or equal to 85 percent.
The side surface of the molding die for the glass of the observation window of the airplane is provided with a wooden handle and a wooden upper and lower die positioning device, and the positioning device is required to be carried out after the grinding of the upper and lower die surfaces is completed when being installed.
The mold is entirely of wooden material and should therefore be stored in a dry, ventilated room temperature environment.
A third embodiment of the invention is: a method for manufacturing a molding die for an aircraft observation window glass comprises the following steps of
1. As shown in fig. 1, firstly, placing a transition female die frame on the surface of a cleaned cabin sample piece (the surface of the sample piece is brushed with a release agent) according to a correct position, and plugging the periphery of the frame by epoxy resin; secondly, pouring the epoxy resin surface layer into the frame, then tamping the epoxy quartz sand, tamping the inside and tamping the bottom surface; finally, after the integral curing (epoxy resin molding cycle), the die is lifted, and the manufacturing of the transition female die is completed. Wherein, the bottom surface of the transition female die is ensured to be vertical to the normal direction of the observation window of the cabin sample piece in the manufacturing process; the transition female die is not involved in the production of glass parts and is only used for the production and the manufacture of dies.
2. As shown in fig. 2, the wood strips with grooves are formed at equal intervals of about 30 mm, the groove width is about 3 mm, and the wood strips are not opened, so that the material thickness is manufactured and uniformly distributed and fixed on the profile of the transition female die; the size of the thickness of the material depends on the actual thickness of the reference aircraft viewing window glass plus the felt thickness (auxiliary material during glass forming).
3. As shown in fig. 3, firstly, the dried red pine is blanked into a plurality of red pine boards with equal width according to the size requirement and the wood grain direction; secondly, planing the outer surface of the Korean pine board; and thirdly, splicing according to the grain direction of the wood material, and after determining the tree nodes counteracting the self material of the wood, bonding and fixing the tree nodes layer by using emulsion, thereby ensuring that the tree nodes cannot exist on the working surface. Finally, after the emulsion is completely solidified, the manufacture of the lower die matrix of the aircraft observation window glass forming die is completed.
4. As shown in FIG. 4, the transition female die and the lower die matrix of the aircraft observation window glass forming die are clamped, coloring agent is smeared on the wooden strip with the groove, and the lower die matrix of the aircraft observation window glass forming die is repeatedly ground and repaired continuously until the molding requirement is met, the molding surface is smooth and streamline, and the overall molding surface coloring rate is more than or equal to 85 percent. After finishing the lapping, the result is shown in FIG. 5.
5. As shown in fig. 6, the "wood strip with the groove" is arranged on the lower die surface of the "aircraft observation window glass forming die" according to the process method in the step 2; the size of the thickness of the material depends on the actual thickness of the reference aircraft viewing window glass plus the felt thickness (auxiliary material during glass forming).
6. As shown in fig. 7, the upper mold of the aircraft observation window glass forming mold is manufactured according to the process method in the step 3; the upper mold is made into a structure with a hollow middle part, so that the contact surface between the glass and the mold in the molding process is reduced, and the defects of bubbles, negative marks and the like generated in the glass manufacturing process are effectively avoided; meanwhile, the structure with the hollow middle part is adopted, after the upper and lower moulds of the glass forming mould of the aircraft observation window are closed, the thickness of the glass edge can be effectively controlled, and the assembly gap between the glass and the metal frame edge of the aircraft observation window is ensured.
7. As shown in FIG. 7, according to the process method in the step 4, the lower die of the aircraft observation window glass forming die and the upper die of the aircraft observation window glass forming die are matched, the upper die of the aircraft observation window glass forming die is repeatedly ground and repaired continuously, smooth streamline of the molding surface is ensured, and the overall molding surface coloring rate is more than or equal to 85%. After the upper mould of the aeroplane observation window glass forming mould is manufactured, the batten on the moulding surface of the lower mould of the aeroplane observation window glass forming mould is removed, and the moulding surface of the mould is not damaged when the batten is removed.
8. As shown in fig. 8, wooden positioning devices and wooden handles are installed on both sides of the mold; the die positioning device should ensure that the upper die and the lower die are in the die closing state before installation and are carried out in a fixed state, so that the positions of the upper die and the lower die are prevented from being displaced.
Claims (9)
1. The molding die for the aircraft observation window glass is characterized by comprising an upper molding die and a lower molding die, wherein the upper molding die and the lower molding die are made of wood materials and are spliced at equal intervals according to the wood grain direction.
2. An aircraft viewing window glass forming die as in claim 1 wherein wooden handles are provided on both sides of said upper forming die.
3. The aircraft observation window glass forming die according to claim 1, wherein positioning blocks are arranged on two sides of the upper forming die, two positioning blocks are arranged on the lower forming die, a positioning groove is formed between the two positioning blocks on the lower forming die, and the positioning blocks on the upper forming die are matched with the positioning grooves of the lower forming die to realize positioning of the upper forming die and the lower forming die.
4. The mold for molding glass of an aircraft windshield according to claim 1, wherein said upper molding die has a hollow-in-the-middle structure.
5. The mold for molding glass of an aircraft observation window according to claim 1, wherein the upper molding die and the lower molding die are formed by splicing Korean pine at equal intervals according to the grain direction of the wood.
6. A method of manufacturing an aircraft viewing window glass forming mold according to any one of claims 1 to 5, comprising the steps of:
step 1, lofting according to an aircraft cabin sample piece, and copying a transition female die;
firstly, brushing a release agent on the surface of a sample piece of an aircraft cabin, placing a 'transition female die' frame on the surface of the sample piece of the aircraft cabin, and sealing the periphery of the frame by using epoxy resin; secondly, pouring the epoxy resin surface layer into the frame, then tamping the epoxy quartz sand, tamping the inside and tamping the bottom surface; finally, stripping after integral solidification to finish the manufacture of the transition female die;
step 2: equidistant arrangement of the battens with grooves on the 'transition female die' molded surface for manufacturing the material thickness, wherein the spacing of the battens is 30 mm, grooves are formed along the length direction of the battens, and the groove width is 3 mm;
step 3: lower die matrix for manufacturing glass forming die of aircraft observation window
Firstly, blanking dry red pine into a plurality of red pine boards with equal width according to the size requirement and the wood grain direction; secondly, planing the outer surface of the Korean pine board; thirdly, splicing according to the grain direction of the wood, after determining the tree nodes counteracting the self material of the wood, bonding and fixing the tree nodes layer by using emulsion, ensuring that no tree nodes exist on the working surface, and finally, completing the manufacture of the lower die matrix of the aircraft observation window glass forming die after the emulsion is completely solidified;
step 4: clamping the transition female die and the lower die matrix of the aircraft observation window glass forming die, smearing coloring agent on the wood strip with the groove on the transition female die, continuously clamping the lower die matrix and the transition female die, and repeatedly grinding the lower die matrix of the aircraft observation window glass forming die until the molded surface meets the molding requirement to obtain the lower die of the aircraft observation window glass forming die;
step 5: according to the process method in the step 2, the wood strip with the groove is arranged on the surface of the lower die of the aircraft observation window glass forming die to manufacture the material thickness;
step 6: manufacturing an upper mould of an aircraft observation window glass forming mould according to the process method in the step 3; namely: firstly, blanking dry red pine into a plurality of red pine boards with equal width according to the size requirement and the wood grain direction; secondly, planing the outer surface of the Korean pine board; thirdly, splicing according to the grain direction of the wood, after determining the tree nodes counteracting the self material of the wood, bonding and fixing the tree nodes layer by using latex, ensuring that no tree nodes exist on the working surface, and finally, completing the manufacture of the upper die matrix of the aircraft observation window glass forming die after the latex is completely solidified;
step 7: according to the process method in the step 4, the lower mould of the aircraft observation window glass forming mould and the upper mould of the aircraft observation window glass forming mould are clamped, the upper mould profile of the aircraft observation window glass forming mould is repeatedly ground and repaired continuously, and after the upper mould of the aircraft observation window glass forming mould is manufactured, the wood strip on the lower mould profile of the aircraft observation window glass forming mould is removed, and the mould profile cannot be damaged during the removal;
step 8: two sides of a lower die of the aircraft observation window glass forming die and an upper die of the aircraft observation window glass forming die are provided with a wooden positioning block and a wooden handle; the positioning block is used for ensuring that the upper die of the glass forming die of the observation window of the airplane is in a die closing state and is carried out in a fixed state before being installed, so that the positions of the upper die and the lower die are prevented from being displaced.
7. The method of manufacturing an aircraft windshield molding die according to claim 6, wherein in step 1, the bottom surface of the transition die frame is ensured to be perpendicular to the normal direction of the aircraft cabin sample piece observation window during the manufacturing process of the transition die.
8. The method of manufacturing an aircraft windshield molding die according to claim 6, wherein in step 2 and step 5, the stock thickness is the actual thickness of the aircraft windshield plus the felt thickness.
9. The method of manufacturing an aircraft windshield molding die according to claim 6, wherein in step 4 and step 7, both the lower molding surface of the aircraft windshield molding die and the upper molding surface of the aircraft windshield molding die are required to have smooth and streamlined molding surfaces, and the overall molding surface coloring rate is not less than 85%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311393892.1A CN117534298A (en) | 2023-10-25 | 2023-10-25 | Aircraft observation window glass forming die and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311393892.1A CN117534298A (en) | 2023-10-25 | 2023-10-25 | Aircraft observation window glass forming die and manufacturing method |
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| Publication Number | Publication Date |
|---|---|
| CN117534298A true CN117534298A (en) | 2024-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311393892.1A Pending CN117534298A (en) | 2023-10-25 | 2023-10-25 | Aircraft observation window glass forming die and manufacturing method |
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| Country | Link |
|---|---|
| CN (1) | CN117534298A (en) |
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2023
- 2023-10-25 CN CN202311393892.1A patent/CN117534298A/en active Pending
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