CN110815667B - Forming method of blade pressure measuring module of surface pressure measurement model - Google Patents
Forming method of blade pressure measuring module of surface pressure measurement model Download PDFInfo
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- CN110815667B CN110815667B CN201910965600.4A CN201910965600A CN110815667B CN 110815667 B CN110815667 B CN 110815667B CN 201910965600 A CN201910965600 A CN 201910965600A CN 110815667 B CN110815667 B CN 110815667B
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- pressure measurement
- pressure measuring
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000009530 blood pressure measurement Methods 0.000 title claims abstract description 22
- 238000000465 moulding Methods 0.000 claims abstract description 17
- 239000004744 fabric Substances 0.000 claims description 8
- 238000004073 vulcanization Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000011521 glass Substances 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 3
- 229920006335 epoxy glue Polymers 0.000 claims description 2
- 230000008439 repair process Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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Classifications
-
- 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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
-
- 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
- B29L2031/752—Measuring equipment
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The invention belongs to the technical field of non-metallic composite material molding, and particularly relates to a molding method of a blade pressure measuring module of a surface pressure measurement model; the method comprises the steps of firstly vulcanizing and molding a rubber pad, repairing a pressure measuring capillary groove on the rubber pad, arranging a pressure measuring capillary, and finally bonding a surface skin to form a pressure measuring module. The invention effectively ensures the shape and position size precision of the pressure measuring capillary tube while ensuring the theoretical shape by an effective and reasonable forming process method.
Description
Technical Field
The invention belongs to the technical field of non-metallic material forming, and particularly relates to a forming method of a blade pressure measuring module of a surface pressure measuring model.
Background
A research project for testing and analyzing the surface pressure of the helicopter rotor blade requires that a pair of model blades capable of accurately measuring the surface pressure of the blade is manufactured, and through project development and test, the measurement precision of the surface pressure of the blade in China is improved from 30% of the current error to 10%, and meanwhile, the estimation precision of the surface pressure of the blade in China is obviously improved. The manufacturing of the pressure measuring module is one of the core components of the blade of the model, and the surface pressure measuring precision is directly influenced.
The typical cross-sectional view of the pressure measuring module is shown in fig. 1, the pressure measuring module mainly comprises a rubber pad, a pressure measuring capillary tube and a surface skin, when the pressure measuring module is formed, the position and the size of the pressure measuring capillary tube are required to be strictly controlled, the capillary tube needs to be prevented from being blocked by glue in the forming process, and the ideal effect is difficult to achieve by the conventional forming method.
Disclosure of Invention
The purpose of the invention is as follows: a method for forming a blade pressure measuring module of a surface pressure measurement model is provided.
The technical scheme of the invention is as follows: a method for forming pressure measuring module of blade in surface pressure measuring model includes designing and manufacturing pressure measuring module forming mould, sulfurizing to form rubber pad on mould, repairing pressure measuring capillary groove on rubber pad, arranging pressure measuring capillary, and adhering surface skin.
The design of the pressure measuring module forming die adopts a bolt pressurizing mode, the die mainly comprises a forming male die, a left forming female die, a right forming female die, a positioning pin and a fastening bolt, the forming is mainly carried out on the forming male die, the male die and the female die are combined by the positioning pin after the forming is finished, and the fastening bolt provides forming pressure;
the capillary tube arrangement method comprises the following steps: repairing an installation channel of the capillary according to the size requirement and a positioning groove on the die, then installing the capillary, locally fixing the capillary by using glue, and plugging two ends of the capillary;
the surface skin bonding method comprises the following steps: and (3) preparing epoxy glue, spreading glass cloth as a surface skin on the outer surface of the rubber pad in a wet forming manner, removing the demolding cloth of the female die of the die, and then closing the die and curing again.
The invention has the beneficial effects that: the invention skillfully transports rubber materials as the matrix of the capillary, firstly vulcanizes and forms, then accurately repairs the installation channel of the pressure measuring capillary, and finally lays the surface skin. By an effective and reasonable forming process, the shape and position size precision of the pressure measuring capillary tube are effectively ensured while the theoretical shape is ensured.
Drawings
Figure 1 is a schematic cross-sectional view of a pressure measurement module,
figure 2 is a flow chart of an embodiment of the present invention,
figure 3 is a schematic view of a pressure measuring module forming die,
fig. 4 is a schematic view of the pressure measuring module after molding.
Description of numbering: (1) the rubber pad (2) pressure measuring capillary (3) surface skin (4) forming male die (5), left forming female die (6), right forming female die (7) fastening bolt (8) hanging ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in FIG. 1, the pressure measuring module applied to the surface pressure measurement model blade consists of a rubber pad, a pressure measuring capillary tube and a surface skin. In order to obtain the pressure measuring module with the best effect, the invention adopts the following forming method, in particular;
the design and manufacture of the pressure measuring module forming die selects a bolt pressurizing mode, and the die mainly comprises a forming male die, a left forming female die, a right forming female die, a positioning pin, a fastening bolt, a lifting device and the like. The die material is 45# steel, and the die material is required to be subjected to quenching and tempering heat treatment, the dimensional precision tolerance of the molded surface is required to be +/-0.1 mm, and the roughness of the molded surface is required to be Ra1.6.
The pressure measuring module forming method includes the steps of firstly vulcanizing and forming the rubber pad, repairing a pressure measuring capillary groove on the rubber pad, arranging the pressure measuring capillary, and finally bonding the surface skin.
In the implementation, in order to ensure the smooth implementation of the molding method, before molding, a molding die and materials are prepared: cleaning a mould, then paving demoulding cloth in a mould cavity, and preparing raw materials such as rubber, capillary tubes, surface skin, adhesive and the like for forming;
the rubber pad forming method comprises the steps of paving two layers of rubber with the brand number of CR-63G/0.86 on a die, and carrying out die assembly and vulcanization forming at the vulcanization temperature of 160 +/-5 ℃ for 20-30 minutes and the die assembly clearance of less than 0.1 mm.
In the capillary arrangement: opening the die, repairing an installation channel of the capillary according to the size requirement and the positioning groove on the die, and then installing the capillary; during installation, the rubber 406 can be used for local fixation, and the two ends of the capillary tube need to be plugged, so that the capillary tube is prevented from being blocked due to the fact that rubber materials permeate into the capillary tube in the vulcanization process.
And finally, paving a skin on the surface of the rubber pad, wherein the specific implementation process comprises the following steps: preparing a J-200-1A adhesive, laying a layer of EW100A glass cloth as a surface skin on the outer surface of the rubber pad in a wet forming way, removing the demoulding cloth of a female mould of the mould, then closing the mould again and curing, wherein the curing parameters are as follows: the curing temperature is 70 +/-3 ℃, the curing time is 2-2.5 hours, and the mold closing gap is required to be less than 0.1 mm.
The foregoing is merely a detailed description of the embodiments of the present invention, and some of the conventional techniques are not detailed. The scope of the present invention is not limited thereto, and any changes or substitutions that can be easily made by those skilled in the art within the technical scope of the present invention will be covered by the scope of the present invention. The protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. A method for forming a pressure measuring module of a blade of a surface pressure measurement model is characterized in that the method comprises the steps of designing and manufacturing a pressure measuring module forming die, vulcanizing and forming a rubber pad on the die, repairing a pressure measuring capillary groove on the rubber pad, arranging a pressure measuring capillary, and finally bonding a surface skin.
2. The method for forming a surface pressure measurement model blade pressure measurement module according to claim 1, wherein the rubber pad is formed by laying rubber on a mold, and performing mold closing and vulcanization molding.
3. The molding method of the surface pressure measurement model blade pressure measurement module according to claim 2, wherein the mold closing and vulcanization molding are carried out at a vulcanization temperature of 160 ℃ ± 5 ℃ for 20-30 minutes, and a mold closing gap is less than 0.1 mm.
4. The method for forming the surface pressure measuring model blade pressure measuring module according to claim 2, wherein before the mold is used, the mold is firstly cleaned, and then a demolding cloth is laid in the mold cavity.
5. The molding method of the surface pressure measurement model blade pressure measurement module according to claim 1, wherein the arrangement of the pressure measurement capillary is to repair an installation channel of the capillary according to the size requirement and a positioning groove on the mold, and then install the pressure measurement capillary.
6. The method for forming a surface pressure measurement model blade pressure measurement module according to claim 5, wherein the pressure measurement capillary tube is partially fixed by glue when being installed, and both ends of the pressure measurement capillary tube are plugged.
7. The method for molding the surface pressure measurement model blade pressure measuring module according to claim 1, wherein the method for bonding the surface skin comprises the following steps: and (3) preparing epoxy glue, laying a layer of glass cloth as a surface skin on the outer surface of the rubber pad in a wet forming manner, removing the demoulding cloth of the female mould of the mould, and then closing the mould again for curing.
8. The method for forming a surface pressure measuring model blade pressure measuring module according to claim 7, wherein when the mold is closed and cured, the curing parameters are as follows: the curing temperature is 70 +/-3 ℃, the curing time is 2-2.5 hours, and the die closing gap of the die is less than 0.1 mm.
9. The method for molding the surface pressure measurement model blade pressure measurement module according to claim 1, wherein the molding die is composed of a molding male die, a left molding female die, a right molding female die, a positioning pin, a fastening bolt and a hoisting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965600.4A CN110815667B (en) | 2019-10-11 | 2019-10-11 | Forming method of blade pressure measuring module of surface pressure measurement model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910965600.4A CN110815667B (en) | 2019-10-11 | 2019-10-11 | Forming method of blade pressure measuring module of surface pressure measurement model |
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| Publication Number | Publication Date |
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| CN110815667A CN110815667A (en) | 2020-02-21 |
| CN110815667B true CN110815667B (en) | 2022-04-01 |
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| CN201910965600.4A Active CN110815667B (en) | 2019-10-11 | 2019-10-11 | Forming method of blade pressure measuring module of surface pressure measurement model |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113670211B (en) * | 2021-09-18 | 2025-02-11 | 固瑞特模具（太仓）有限公司 | Wind power female mold gap monitoring system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1134830A (en) * | 1954-07-14 | 1957-04-18 | Hennefer Schreibwaren Fabrik R | Ink duct for pens |
| CN102873877A (en) * | 2012-09-13 | 2013-01-16 | 沈阳飞机工业（集团）有限公司 | Manufacturing process for composite material packet parts |
| CN103448165A (en) * | 2013-08-20 | 2013-12-18 | 浙江三门维艾尔工业有限公司 | Composite pad as well as forming method of forming mould and application thereof |
| CN108100299A (en) * | 2017-12-01 | 2018-06-01 | 中国直升机设计研究所 | A kind of rotor model blade |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4192534A (en) * | 1976-11-11 | 1980-03-11 | S & C Electric Company | High voltage fuse having attached tubular members |
| CN101244615A (en) * | 2008-03-24 | 2008-08-20 | 周启君 | Protecting pad for tire hot patching air chamber |
| JP2010076306A (en) * | 2008-09-26 | 2010-04-08 | Okamoto Ind Inc | Rubber coating mesh molded article and its manufacturing process |
| CN101524880B (en) * | 2009-02-27 | 2011-11-23 | 航天材料及工艺研究所 | A molding die and molding method for a metal-rubber composite gasket |
| CN102033135B (en) * | 2010-09-30 | 2013-06-05 | 西北工业大学 | Integrated microfluidic chip interface mould |
| CN206287413U (en) * | 2016-11-03 | 2017-06-30 | 天津鑫奇阀门有限公司 | A kind of rubber blanket sulfurizing mould of valve |
-
2019
- 2019-10-11 CN CN201910965600.4A patent/CN110815667B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1134830A (en) * | 1954-07-14 | 1957-04-18 | Hennefer Schreibwaren Fabrik R | Ink duct for pens |
| CN102873877A (en) * | 2012-09-13 | 2013-01-16 | 沈阳飞机工业（集团）有限公司 | Manufacturing process for composite material packet parts |
| CN103448165A (en) * | 2013-08-20 | 2013-12-18 | 浙江三门维艾尔工业有限公司 | Composite pad as well as forming method of forming mould and application thereof |
| CN108100299A (en) * | 2017-12-01 | 2018-06-01 | 中国直升机设计研究所 | A kind of rotor model blade |
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