CN112571815A - Rib positioning method of reinforced wall plate - Google Patents
Rib positioning method of reinforced wall plate Download PDFInfo
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- CN112571815A CN112571815A CN202011184055.4A CN202011184055A CN112571815A CN 112571815 A CN112571815 A CN 112571815A CN 202011184055 A CN202011184055 A CN 202011184055A CN 112571815 A CN112571815 A CN 112571815A
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- soft mold
- rubber soft
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- rib
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
- B29C65/62—Stitching
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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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
- B29C65/7802—Positioning the parts to be joined, e.g. aligning, indexing or centring
- B29C65/782—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined
- B29C65/7823—Positioning the parts to be joined, e.g. aligning, indexing or centring by setting the gap between the parts to be joined by using distance pieces, i.e. by using spacers positioned between the parts to be joined and forming a part of the joint
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3076—Aircrafts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3097—Cosmonautical vehicles; Rockets
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Floor Finish (AREA)
Abstract
The invention discloses a rib positioning method of a reinforced wall plate, belonging to the technical field of composite material preparation, and being characterized by comprising the following steps: a. determining the position of the rubber soft mold through the clamping plate, marking the position of the lower backing plate on the rubber soft mold, and marking the position of the lower backing plate on the skin; b. taking down the rubber soft mold and the lower backing plate, adhering the lower backing plate to the rubber soft mold by using a double-sided adhesive tape, and laying a layer of toughening film on the skin, wherein the toughening film is positioned right below the lower backing plate; c. filling a core material in an R area formed by the rubber soft mold and the lower cushion plate; d. the upper padding plate is fixed above the rubber soft mold by adopting a double-sided adhesive tape, a layer of toughening film is laid on the inner molded surface of the rib except for the cap edge sewing area, and the rib is assembled on the rubber soft mold through the positioning clamping plate. The invention can firmly fix the ribs on the skin, the positions of the ribs cannot deviate in the carrying and sewing processes, and the qualification rate of finished products is greatly improved.
Description
Technical Field
The invention relates to the technical field of composite material preparation, in particular to a rib positioning method of a reinforced wall plate.
Background
The hat-shaped ribs and the skin are connected in a sewing mode to form a prefabricated body integrally, and then the composite material hat-shaped stiffened wall plate is prepared by resin film infiltration liquid forming, so that the interlaminar performance and the shock damage tolerance of a composite material part can be improved, the composite material hat-shaped stiffened wall plate is a low-cost preparation technology, and the composite material hat-shaped stiffened wall plate is widely applied to the aerospace field at home and abroad at present. When the skin is sewed up to the rib, need fix a position the rib to the skin on, ensure that the rib position does not squint, rib offset can lead to the rib position deviation to appear in the reinforced wallboard after the curing moulding when sewing up, influence follow-up assembly.
The contact area of the ribs and the skin is a sewing area which cannot be bonded by glue films, toughening materials and other materials with glue, and the sewing is affected. In order to ensure the internal quality of the rib, the inner profile of the rib is also provided with an upper padding plate, a lower padding plate, a rubber soft mold and an R area filling core material. When the ribs are sewn, the skin and the ribs need to be conveyed to the sewing platform from the forming tool, the movement of the cushion plate and the rubber soft mold can also cause the position deviation of the ribs in the conveying process, and therefore the cushion plate and the rubber soft mold also need to be fixed. In the process of preparing the composite material hat-shaped reinforced wall plate, parts are not qualified due to the position deviation of the ribs.
Chinese patent document with publication number CN 107283868A and publication date of 2017, 10 and 24 discloses an integral rib positioning method for a formed carbon fiber composite reinforced wall plate, which is characterized by comprising the following process steps:
(1) accurately placing the cured carbon fiber composite material wallboard skin on a skin mould made of invar steel or carbon fiber composite material, and then installing a carbon fiber composite material integral rib positioning plate on the skin mould, wherein the positioning plate is installed and positioned by matching with a positioning pile on the mould;
(2) placing a glue film, cured ribs or uncured ribs and rib molds in the rib positioning cavities of the integral rib positioning plate;
(3) and packaging the whole part and the positioning plate into a vacuum bag, and conveying the vacuum bag into an autoclave for curing.
This patent document discloses a whole positioning method of rib of shaping carbon-fibre composite reinforced wallboard, to the forming die who uses invar steel material or carbon-fibre composite, adopt the whole rib locating plate of carbon-fibre composite to fix a position, utilize its characteristics with the close coefficient of thermal expansion of mould material, can conveniently realize carrying out the accurate positioning to the rib of large-scale heterotypic composite wallboard, can reduce the degree of difficulty of mould processing simultaneously, make things convenient for the installation combination and the encapsulation operation of vacuum bag when the rib is fashioned, promote the production quality and the efficiency of composite reinforced wallboard finished piece. However, the whole part and the positioning plate need to be packaged into a vacuum bag and then sent into an autoclave for hot pressing, so that the process is complex, the manufacturing cost is high, and the ribs are easy to shift when hot pressing is carried out in the autoclave, so that the qualification rate of finished products is influenced.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a rib positioning method of a reinforced wall plate, which can firmly fix ribs on a skin, and the positions of the ribs cannot deviate in the carrying and sewing processes, so that the finished product percent of pass is greatly improved.
The invention is realized by the following technical scheme:
a rib positioning method of a reinforced wall plate is characterized by comprising the following steps:
a. determining the position of the rubber soft mold through the clamping plate, marking the position of the lower cushion plate on the rubber soft mold after the position of the rubber soft mold is determined, and marking the position of the lower cushion plate on the skin;
b. taking down the rubber soft mold and the lower backing plate, adhering the lower backing plate to the rubber soft mold by using a double-sided adhesive tape, and laying a layer of toughening film on the skin, wherein the toughening film is positioned right below the lower backing plate;
c. assembling the combined lower cushion plate and the rubber soft mold on the skin through a positioning clamping plate, and filling a core material in an R area formed by the rubber soft mold and the lower cushion plate;
d. the upper padding plate is fixed above the rubber soft mold by adopting a double-sided adhesive tape, a layer of toughening film is laid on the inner molded surface of the rib except for the cap edge sewing area, and the rib is assembled on the rubber soft mold through the positioning clamping plate.
The cross section of the rubber soft mold is in a trapezoid shape.
In the step c, the R area formed by the rubber soft mold and the lower backing plate specifically refers to a sector area formed by the lower ends of two isosceles sides of the rubber soft mold and the extension line of the lower backing plate.
And d, sewing lines are arranged at the two ends of the rib, and the rib is fixedly connected with the skin through the sewing lines.
The number of the stitches is 6, 3 stitches are uniformly distributed at any end of each rib, and the 3 stitches are arranged side by side.
In the step d, a layer of toughening film is laid on the inner profile of the rib except for the cap edge sewing area, specifically, the toughening film is laid on the upper trapezoidal edge and the two equal waist edges of the rubber soft mold.
The beneficial effects of the invention are mainly shown in the following aspects:
1. the invention 'a', the position of the rubber soft mold is determined through the clamping plate, after the position of the rubber soft mold is determined, the position of the lower cushion plate is marked on the rubber soft mold, and the position of the lower cushion plate is marked on the skin; b. taking down the rubber soft mold and the lower backing plate, adhering the lower backing plate to the rubber soft mold by using a double-sided adhesive tape, and laying a layer of toughening film on the skin, wherein the toughening film is positioned right below the lower backing plate; c. assembling the combined lower cushion plate and the rubber soft mold on the skin through a positioning clamping plate, and filling a core material in an R area formed by the rubber soft mold and the lower cushion plate; d. fixing the upper backing plate above the rubber soft mold by using a double-sided adhesive tape, laying a layer of toughening film on the inner molded surface of the rib except for the cap edge sewing region, the ribs are assembled on the rubber soft mold through the positioning clamping plate, the lower backing plate is adhered on the rubber soft mold through the double-sided adhesive tape, a layer of toughening film is laid at the position of the lower backing plate on the skin, the lower backing plate and the rubber soft mold which are combined together are adhered to the skin through the toughening film, then filling core materials in R areas of the rubber soft mold and the lower cushion plate, fixing the upper cushion plate above the rubber soft mold by adopting a double-sided adhesive tape, the method is characterized in that a layer of toughening film is laid on the inner molded surface of each rib except for the cap edge sewing area, the ribs are assembled on the rubber soft mold and bonded together through the toughening film, the ribs are bonded on the skin, and meanwhile, the upper padding plate, the lower padding plate and the rubber soft mold are fixed. Compared with the prior art, the rib fixing device has the advantages that the ribs can be firmly fixed on the skin, the position of the ribs cannot deviate in the carrying and sewing processes, and the qualified rate of finished products is greatly improved.
2. According to the invention, the whole rib positioning process is simple and easy to operate, the position deviation of the rib can be effectively prevented, the problem of rib position deviation of the cured and molded reinforced wall plate can be further prevented, and the subsequent assembly efficiency and the assembly quality can be favorably ensured.
Drawings
The invention will be further described in detail with reference to the drawings and the detailed description, wherein:
FIG. 1 is a schematic view of the positioning of ribs of a stiffened wall panel of the present invention;
the labels in the figure are: 1. skin, 2, suture, 3, ribs, 4, core materials, 5, a rubber soft mold, 6, an upper cushion plate, 7, a lower cushion plate, 8, a toughening film, 9 and a double-sided adhesive tape.
Detailed Description
Example 1
Referring to fig. 1, a rib positioning method of a reinforced wall panel includes the steps of:
a. determining the position of the rubber soft mold 5 through the clamping plate, marking the position of the lower cushion plate 7 on the rubber soft mold 5 after the position of the rubber soft mold 5 is determined, and marking the position of the lower cushion plate 7 on the skin 1;
b. taking down the rubber soft mold 5 and the lower backing plate 7, bonding the lower backing plate 7 to the rubber soft mold 5 by using a double-sided adhesive tape 9, laying a layer of toughening film 8 on the skin 1, and positioning the toughening film 8 right below the lower backing plate 7;
c. assembling the combined lower cushion plate 7 and the rubber soft mold 5 on the skin 1 through a positioning clamping plate, and filling a core material 4 in an R area formed by the rubber soft mold 5 and the lower cushion plate 7;
d. an upper backing plate 6 is fixed above the rubber soft mold 5 by a double-sided adhesive tape 9, a layer of toughening film 8 is laid on the inner molded surface of the rib 3 except the cap edge sewing region, and the rib 3 is assembled on the rubber soft mold 5 by a positioning clamping plate.
A, determining the position of a rubber soft mold 5 through a clamping plate, marking the position of a lower cushion plate 7 on the rubber soft mold 5 after the position of the rubber soft mold 5 is determined, and marking the position of the lower cushion plate 7 on the skin 1; b. taking down the rubber soft mold 5 and the lower backing plate 7, bonding the lower backing plate 7 to the rubber soft mold 5 by using a double-sided adhesive tape 9, laying a layer of toughening film 8 on the skin 1, and positioning the toughening film 8 right below the lower backing plate 7; c. assembling the combined lower cushion plate 7 and the rubber soft mold 5 on the skin 1 through a positioning clamping plate, and filling a core material 4 in an R area formed by the rubber soft mold 5 and the lower cushion plate 7; d. fixing an upper backing plate 6 above a rubber soft mold 5 by using a double-sided adhesive tape 9, laying a layer of toughening film 8 at the position of the inner molded surface of each rib 3 except a hat brim sewing region, assembling the rib 3 on the rubber soft mold 5 by using a positioning clamping plate, adhering a lower backing plate 7 on the rubber soft mold 5 by using the double-sided adhesive tape 9, laying a layer of toughening film 8 at the position of the lower backing plate 7 on a skin 1, adhering the combined lower backing plate 7 and the rubber soft mold 5 on the skin 1 by using the toughening film 8, filling a core material 4 in an R region of the rubber soft mold 5 and the lower backing plate 7, fixing the upper backing plate 6 above the rubber soft mold 5 by using the double-sided adhesive tape 9, laying a layer of toughening film 8 at the position of the inner molded surface of each rib 3 except the hat brim sewing region, assembling the rib 3 on the rubber soft mold 5, and adhering the rib 3 and the rubber soft mold 5 together by using the toughening film 8, the ribs 3 are also bonded to the skin 1, and the upper cushion plate 6, the lower cushion plate 7 and the soft rubber mold 5 are also fixed. Compared with the prior art, the rib 3 can be firmly fixed on the skin 1, the position of the rib 3 cannot deviate in the carrying and sewing processes, and the qualification rate of finished products is greatly improved.
Example 2
Referring to fig. 1, a rib positioning method of a reinforced wall panel includes the steps of:
a. determining the position of the rubber soft mold 5 through the clamping plate, marking the position of the lower cushion plate 7 on the rubber soft mold 5 after the position of the rubber soft mold 5 is determined, and marking the position of the lower cushion plate 7 on the skin 1;
b. taking down the rubber soft mold 5 and the lower backing plate 7, bonding the lower backing plate 7 to the rubber soft mold 5 by using a double-sided adhesive tape 9, laying a layer of toughening film 8 on the skin 1, and positioning the toughening film 8 right below the lower backing plate 7;
c. assembling the combined lower cushion plate 7 and the rubber soft mold 5 on the skin 1 through a positioning clamping plate, and filling a core material 4 in an R area formed by the rubber soft mold 5 and the lower cushion plate 7;
d. an upper backing plate 6 is fixed above the rubber soft mold 5 by a double-sided adhesive tape 9, a layer of toughening film 8 is laid on the inner molded surface of the rib 3 except the cap edge sewing region, and the rib 3 is assembled on the rubber soft mold 5 by a positioning clamping plate.
The cross section of the soft rubber mold 5 is in a trapezoid shape.
Example 3
Referring to fig. 1, a rib positioning method of a reinforced wall panel includes the steps of:
a. determining the position of the rubber soft mold 5 through the clamping plate, marking the position of the lower cushion plate 7 on the rubber soft mold 5 after the position of the rubber soft mold 5 is determined, and marking the position of the lower cushion plate 7 on the skin 1;
b. taking down the rubber soft mold 5 and the lower backing plate 7, bonding the lower backing plate 7 to the rubber soft mold 5 by using a double-sided adhesive tape 9, laying a layer of toughening film 8 on the skin 1, and positioning the toughening film 8 right below the lower backing plate 7;
c. assembling the combined lower cushion plate 7 and the rubber soft mold 5 on the skin 1 through a positioning clamping plate, and filling a core material 4 in an R area formed by the rubber soft mold 5 and the lower cushion plate 7;
d. an upper backing plate 6 is fixed above the rubber soft mold 5 by a double-sided adhesive tape 9, a layer of toughening film 8 is laid on the inner molded surface of the rib 3 except the cap edge sewing region, and the rib 3 is assembled on the rubber soft mold 5 by a positioning clamping plate.
The cross section of the soft rubber mold 5 is in a trapezoid shape.
In the step c, the R area formed by the soft rubber mold 5 and the lower pad 7 specifically refers to a sector area formed by the lower ends of two isosceles sides of the soft rubber mold 5 and the extension line of the lower pad 7.
Example 4
Referring to fig. 1, a rib positioning method of a reinforced wall panel includes the steps of:
a. determining the position of the rubber soft mold 5 through the clamping plate, marking the position of the lower cushion plate 7 on the rubber soft mold 5 after the position of the rubber soft mold 5 is determined, and marking the position of the lower cushion plate 7 on the skin 1;
b. taking down the rubber soft mold 5 and the lower backing plate 7, bonding the lower backing plate 7 to the rubber soft mold 5 by using a double-sided adhesive tape 9, laying a layer of toughening film 8 on the skin 1, and positioning the toughening film 8 right below the lower backing plate 7;
c. assembling the combined lower cushion plate 7 and the rubber soft mold 5 on the skin 1 through a positioning clamping plate, and filling a core material 4 in an R area formed by the rubber soft mold 5 and the lower cushion plate 7;
d. an upper backing plate 6 is fixed above the rubber soft mold 5 by a double-sided adhesive tape 9, a layer of toughening film 8 is laid on the inner molded surface of the rib 3 except the cap edge sewing region, and the rib 3 is assembled on the rubber soft mold 5 by a positioning clamping plate.
The cross section of the soft rubber mold 5 is in a trapezoid shape.
In the step c, the R area formed by the soft rubber mold 5 and the lower pad 7 specifically refers to a sector area formed by the lower ends of two isosceles sides of the soft rubber mold 5 and the extension line of the lower pad 7.
In the step d, both ends of the rib 3 are provided with the sewing lines 2, and the rib 3 is fixedly connected with the skin 1 through the sewing lines 2.
Example 5
Referring to fig. 1, a rib positioning method of a reinforced wall panel includes the steps of:
a. determining the position of the rubber soft mold 5 through the clamping plate, marking the position of the lower cushion plate 7 on the rubber soft mold 5 after the position of the rubber soft mold 5 is determined, and marking the position of the lower cushion plate 7 on the skin 1;
b. taking down the rubber soft mold 5 and the lower backing plate 7, bonding the lower backing plate 7 to the rubber soft mold 5 by using a double-sided adhesive tape 9, laying a layer of toughening film 8 on the skin 1, and positioning the toughening film 8 right below the lower backing plate 7;
c. assembling the combined lower cushion plate 7 and the rubber soft mold 5 on the skin 1 through a positioning clamping plate, and filling a core material 4 in an R area formed by the rubber soft mold 5 and the lower cushion plate 7;
d. an upper backing plate 6 is fixed above the rubber soft mold 5 by a double-sided adhesive tape 9, a layer of toughening film 8 is laid on the inner molded surface of the rib 3 except the cap edge sewing region, and the rib 3 is assembled on the rubber soft mold 5 by a positioning clamping plate.
The cross section of the soft rubber mold 5 is in a trapezoid shape.
In the step c, the R area formed by the soft rubber mold 5 and the lower pad 7 specifically refers to a sector area formed by the lower ends of two isosceles sides of the soft rubber mold 5 and the extension line of the lower pad 7.
In the step d, both ends of the rib 3 are provided with the sewing lines 2, and the rib 3 is fixedly connected with the skin 1 through the sewing lines 2.
The number of the stitches 2 is 6, 3 stitches 2 are evenly distributed at any end of the rib 3, and the 3 stitches 2 are arranged side by side.
Example 6
Referring to fig. 1, a rib positioning method of a reinforced wall panel includes the steps of:
a. determining the position of the rubber soft mold 5 through the clamping plate, marking the position of the lower cushion plate 7 on the rubber soft mold 5 after the position of the rubber soft mold 5 is determined, and marking the position of the lower cushion plate 7 on the skin 1;
b. taking down the rubber soft mold 5 and the lower backing plate 7, bonding the lower backing plate 7 to the rubber soft mold 5 by using a double-sided adhesive tape 9, laying a layer of toughening film 8 on the skin 1, and positioning the toughening film 8 right below the lower backing plate 7;
c. assembling the combined lower cushion plate 7 and the rubber soft mold 5 on the skin 1 through a positioning clamping plate, and filling a core material 4 in an R area formed by the rubber soft mold 5 and the lower cushion plate 7;
d. an upper backing plate 6 is fixed above the rubber soft mold 5 by a double-sided adhesive tape 9, a layer of toughening film 8 is laid on the inner molded surface of the rib 3 except the cap edge sewing region, and the rib 3 is assembled on the rubber soft mold 5 by a positioning clamping plate.
The cross section of the soft rubber mold 5 is in a trapezoid shape.
In the step c, the R area formed by the soft rubber mold 5 and the lower pad 7 specifically refers to a sector area formed by the lower ends of two isosceles sides of the soft rubber mold 5 and the extension line of the lower pad 7.
In the step d, both ends of the rib 3 are provided with the sewing lines 2, and the rib 3 is fixedly connected with the skin 1 through the sewing lines 2.
The number of the stitches 2 is 6, 3 stitches 2 are evenly distributed at any end of the rib 3, and the 3 stitches 2 are arranged side by side.
In the step d, a layer of toughening film 8 is laid on the inner molded surface of the rib 3 except for the cap edge sewing area, specifically, the toughening film 8 is laid on the upper trapezoidal edge and the two equal waist edges of the rubber soft mold 5.
The whole rib 3 positioning process is simple and easy to operate, the rib 3 position can be effectively prevented from deviating, the problem of rib 3 position deviation of the reinforced wall plate after curing forming can be prevented, and follow-up assembly efficiency and assembly quality can be guaranteed.
Claims (6)
1. A rib positioning method of a reinforced wall plate is characterized by comprising the following steps:
a. the position of the rubber soft mold (5) is determined through the clamping plate, after the position of the rubber soft mold (5) is determined, the position of the lower padding plate (7) is marked on the rubber soft mold (5), and the position of the lower padding plate (7) is marked on the skin (1);
b. taking down the rubber soft mold (5) and the lower backing plate (7), bonding the lower backing plate (7) to the rubber soft mold (5) by using a double-sided adhesive tape (9), laying a layer of toughening film (8) on the skin (1), wherein the toughening film (8) is positioned right below the lower backing plate (7);
c. assembling the combined lower cushion plate (7) and the rubber soft mold (5) on the skin (1) through a positioning clamping plate, and filling a core material (4) in an R area formed by the rubber soft mold (5) and the lower cushion plate (7);
d. an upper padding plate (6) is fixed above a soft rubber mold (5) by a double-sided adhesive tape (9), a layer of toughening film (8) is paved on the inner molded surface of the rib (3) except for the cap edge sewing area, and the rib (3) is assembled on the soft rubber mold (5) by a positioning clamping plate.
2. The method of positioning the ribs of a stiffened wall panel of claim 1, wherein: the cross section of the rubber soft mold (5) is in a trapezoid shape.
3. The method of positioning the ribs of a stiffened wall panel of claim 2, wherein: in the step c, the R area formed by the soft rubber mold (5) and the lower backing plate (7) is specifically a sector area formed by the lower ends of two isosceles sides of the soft rubber mold (5) and the extension line of the lower backing plate (7).
4. A method of positioning ribs of a stiffened wall panel of claim 3, wherein: in the step d, both ends of the rib (3) are provided with the sewing lines (2), and the rib (3) is fixedly connected with the skin (1) through the sewing lines (2).
5. The method of positioning the ribs of a stiffened wall panel of claim 4, wherein: the number of the stitches (2) is 6, 3 stitches (2) are uniformly distributed at any end of the rib (3), and the 3 stitches (2) are arranged side by side.
6. The method of positioning the ribs of a stiffened wall panel of claim 5, wherein: in the step d, a layer of toughening film (8) is laid on the inner molded surface of the rib (3) except for the cap edge sewing area, specifically, the toughening film (8) is laid on the upper trapezoidal edge and the two equal waist edges of the rubber soft mold (5).
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| CN202011184055.4A CN112571815B (en) | 2020-10-29 | 2020-10-29 | Rib positioning method of reinforced wall plate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114474791A (en) * | 2022-01-18 | 2022-05-13 | 成都飞机工业（集团）有限责任公司 | Positioning tool and positioning method for resin film melt infiltration forming stiffened plate |
| CN114671697A (en) * | 2022-03-23 | 2022-06-28 | 中航复合材料有限责任公司 | Preparation method of SiC/SiC composite material complex rib structure skin |
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| CN114671697A (en) * | 2022-03-23 | 2022-06-28 | 中航复合材料有限责任公司 | Preparation method of SiC/SiC composite material complex rib structure skin |
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