CN104526257A - Opening method of large-diameter thin-wall heat shielding layer - Google Patents
Opening method of large-diameter thin-wall heat shielding layer Download PDFInfo
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- CN104526257A CN104526257A CN201410616717.9A CN201410616717A CN104526257A CN 104526257 A CN104526257 A CN 104526257A CN 201410616717 A CN201410616717 A CN 201410616717A CN 104526257 A CN104526257 A CN 104526257A
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- opening
- heat shield
- shielding layer
- heat shielding
- position line
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
Abstract
The invention discloses an opening method of a large-diameter thin-wall heat shielding layer. The opening method comprises the steps of 1, forming a heat shielding layer, and determining machining allowance of an upper end face and a lower end face of the heat shielding layer; 2, delimiting a position line of a mounting opening on the heat shielding layer as well as machining positions of the two end faces; 3, performing rough machining on the mounting opening, and enabling an opening at the large end root of the heat shielding layer not to be dredged; 4, dredging the mounting opening till reaching the large end root; 5, performing trial assembly on the heat shielding layer to arrange the heat shielding layer on a bay section shell, and making repairs and supplying replacements on the opening with a composite piece on the shell; 6, sleeving and curing the heat shielding layer on the shell, and then processing the allowance of the two end faces, so that mounting of the heat shielding layer on the bay section shell is realized. The invention further discloses a corresponding product and application thereof. According to the invention, a fine and rough segmented opening manner is adopted, repairs are made and replacements are supplied according to the mounting reference of a composite front wing of the shell, and appropriate gaps are opened in place during opening, so that the problems that the reference for the opening position cannot be determined, the precision and the size cannot be ensured, and the efficiency is relatively low existing at present are solved.
Description
Technical field
The present invention relates to aircraft cabin section heat shield technical field, be specifically related to a kind of hatch method of large diameter thin wall heat shield.
Background technology
Aircraft, at the heat launched and flight course middle deck Duan Shanghui generation is very large, for avoiding the normal operation affecting aircraft, generally all can arrange heat shield at aircraft each cabin piece housing outer surface heat insulation to carry out heat release.
At present, be a kind of common heat shield mounting means by heat shield integral assembling on cabin piece housing surface by the mode of suit.First this mounting means is the heat shield that is first shaped separately, is then socketed on the piece housing of cabin, finally processes each installing port together with housing.Aircraft cabin section is generally large diameter thin wall class part, and (such as diameter is more than 100mm, wall thickness is less than the cylindrical shell class part of 3mm), wall thickness is thinner, poor rigidity, yielding, its heat shield is also large diameter thin wall class part, have that wall thickness is thinner equally, poor rigidity and yielding feature, and composite members (such as compound front wing during dressing operation on housing, be generally four) can not dismantle, so need to open four composite members openings in advance before heat shield such as fiberglass heat shield suit, then heat shield is sleeved on housing.
Because the relative position of the composite members on housing exists error, therefore on heat shield, open composite members installing port in advance there is the problem identificatioin of aperture position benchmark, and, because heat shield is large diameter thin wall class part, its openings low precision and being very easily out of shape, the restive detection of size, opening size and precision is caused to be difficult to ensure, in addition, the pre-opening of heat shield is more, and conventional open mode efficiency is very low.
Summary of the invention
For above defect or the Improvement requirement of prior art, the invention provides a kind of hatch method of large size, thin walled class heat shield, it is by arranging the mode of the thick segmented openings of essence and carrying out repair according to the reference for installation of housing compound front wing, and simultaneously opening time position is reached together in appropriate gap, thus solve that the aperture position benchmark existed at present be can not determine, precision and size cannot ensure and efficiency is lower problem.
According to the present invention, for achieving the above object, a kind of hatch method of large size, thin walled class heat shield is provided, comprises the steps:
(1) shaping heat shield, and according to the large end diameter of heat shield and the height dimension of heat shield, determine the allowance of the upper and lower end face of heat shield;
(2) on heat shield, the position line of construction opening delimited according to the position of composite members on housing, and the Working position line of both ends of the surface;
(3) first opening procedure: roughing construction opening, and ensure that heat shield large end root opening is not open-minded, specifically comprise: first install heat shield on opening clamp, be secondly connected on rotating disk by described opening clamp, centering center also clamps; Then process place's construction opening according to the position line of described construction opening, and retain the described position line; Finally rotate rotating disk successively, process remaining construction opening and retention position line;
(4) second opening procedure: opening described construction opening to holding root greatly, specifically comprising: first build state construction opening to setting size by described position line file polishing, file, retain large end opening place heat shield; Then, sawing also files the heat shield repaiied large end root and retain, and makes opening open-minded;
(5) the 3rd opening procedure: by above-mentioned heat shield trial assembly on the piece housing of cabin, and with the composite members repair opening on housing, to ensure opening benchmark and composite members unifying datum;
(6) above-mentioned heat shield suit is solidified on described housing, then machine away both ends of the surface surplus, the installation of described heat shield on the piece housing of cabin can be realized.
As improvement of the present invention, in described step (5), by repair opening to ensure that the gap of each construction opening and composite members is for 0.5mm ~ 3mm.
As improvement of the present invention, described composite members is front wing, and it is four.
As improvement of the present invention, described heat shield is fiberglass heat shield.
The invention also discloses a kind of heat shield utilizing above-mentioned hatch method to be formed.
The invention also discloses a kind of cabin piece housing with above-mentioned heat shield.
In the present invention, heat shield opening adopts thick smart segmented openings, solves the problem of thin walled aperture distortion and Aperture precision difference; Carry out repair according to the reference for installation of four compound front wings on housing after the pre-opening of heat shield, both solutions benchmark is difficult to unified problem; During the pre-opening of heat shield, position is reached together in appropriate gap, solve the problem that the aperture efficiency of heat shield is low.
In the present invention, shaping heat shield blank used is the machined large diameter thin wall taper barrier part formed;
In the present invention, the roughing construction opening in the first opening procedure is sleeping boring roughing.
In general, the above technical scheme conceived by the present invention compared with prior art, has following beneficial effect:
(1) multistage opening mode is adopted, namely the pre-opening of roughing of heat shield is first carried out, then utilize file to polish, file and repair to open to large end, finally after cover is filled to housing, carrying out repair, to complete opening, thus can ensure that reference for installation is determined and orientation problem, and the problem of shedding deformation and Aperture precision difference;
(2) when pre-opening, position is reached together in appropriate gap, thus the problem that the aperture efficiency solving heat shield is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the heat shield after processing according to constructed method of the present invention;
Fig. 2 is for carrying out the front view after roughing according in the heat shield hatch method constructed by embodiments of the invention;
Fig. 3 (a) is for according to the front view carrying out heat shield after pre-opening in the heat shield hatch method constructed by embodiments of the invention;
Fig. 3 (b) is the top view of 3 (a).
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In the present invention, a kind of hatch method of large size, thin walled class heat shield, comprises the steps:
(1) shaping heat shield, and according to the large end diameter of heat shield and the height dimension of heat shield, determine the allowance of the upper and lower end face of heat shield;
(2) on heat shield, the position line of construction opening delimited according to the position of composite members on housing, and the Working position line of both ends of the surface;
(3) first opening procedure: roughing construction opening, and ensure that heat shield large end root opening is not open-minded, specifically comprise: first install heat shield on opening clamp, be secondly connected on rotating disk by described opening clamp, centering center also clamps; Then process place's construction opening according to the position line of described construction opening, and retain the described position line; Finally rotate rotating disk successively, process remaining construction opening and retention position line;
(4) second opening procedure: opening described construction opening to holding root greatly, specifically comprising: first build state construction opening to setting size by described position line file polishing, file, retain large end opening place heat shield; Then, sawing also files the heat shield repaiied large end root and retain, and makes opening open-minded;
(5) the 3rd opening procedure: by above-mentioned heat shield trial assembly on the piece housing of cabin, and with the composite members repair opening on housing, ensure opening benchmark and composite members unifying datum;
(6) above-mentioned heat shield suit is solidified on described housing, then machine away both ends of the surface surplus, the installation of described heat shield on the piece housing of cabin can be realized.
Preferably, in described step (5), by repair opening to ensure that the gap of each construction opening and composite members is for 0.5mm ~ 3mm.
Preferably, described composite members is compound front wing, and it is four.
Preferably, described heat shield is fiberglass heat shield.
Come further make an explanation to the technological means of the inventive method and object effect or illustrate with concrete example below.
In first embodiment, the hatch method of this heat shield comprises successively:
(1) heat shield preparation process:
To molded blank processing male cone (strobilus masculinus) on lathe, both ends of the surface, form large diameter thin wall taper barrier part semi-finished product after processing;
(2) measuring process:
As shown in Figure 1, the outside diameter D1 measuring heat shield is
end diameter D2 is
height H is 530.1, determines that the allowance of the upper surface of heat shield is 15, and the allowance of lower surface is 15.1;
(3) scribe step:
As shown in Figure 2, draw the construction opening position line of 4 composite members, draw the Working position line of both ends of the surface;
(4) first opening procedure:
As shown in Figure 2, sleeping boring roughing 4 composite members installing ports, large end root opening is not open-minded.Order comprises following process:
Heat shield is installed on opening clamp;
The opening clamp installing heat shield is connected on rotating disk, centering center, clamping;
Process 1 place's opening, retain line;
Rotate rotating disk 90 ° successively, process all the other 3 place's openings, retain line;
(5) second opening procedure:
As shown in Fig. 3 (a), 3 (b), large end root opening is opened in pincers worker.Order comprises following process:
Repair 4 place's openings to size by the polishing of line file, file, retain large end opening place heat shield;
The heat shield that large end root retains is repaiied in sawing, file, and opening is open-minded;
(6) the 3rd opening procedure:
As shown in Fig. 3 (a), 3 (b), by heat shield trial assembly on housing, with the composite members repair opening of 4 on housing, ensure the gap 0.5mm ~ 3mm of 4 place's openings and composite members.Gap width is as following table 1:
Table 14 place's opening and composite members gap record sheet
(7) both ends of the surface surplus step is processed: solidified after on housing by heat shield suit, machine away both ends of the surface surplus, ensure matching requirements.
In the second embodiment, the hatch method of this heat shield comprises successively:
(1) heat shield preparation process:
To molded blank processing male cone (strobilus masculinus) on lathe, both ends of the surface, form large diameter thin wall taper barrier part semi-finished product after processing;
(2) measuring process:
As shown in Figure 1, the outside diameter D1 measuring heat shield is
end diameter D2 is
height H is 530.2, determines
The allowance of the upper surface of heat shield is 15.1, and the allowance of lower surface is 15.1;
(3) scribe step:
As shown in Figure 2, draw the construction opening position line of 4 composite members, draw the Working position line of both ends of the surface;
(4) first opening procedure:
As shown in Figure 2, sleeping boring roughing 4 composite members installing ports, large end root opening is not open-minded.Order comprises following process:
Heat shield is installed on opening clamp;
The opening clamp installing heat shield is connected on rotating disk, centering center, clamping;
Process 1 place's opening, retain line;
Rotate rotating disk 90 ° successively, process all the other 3 place's openings, retain line;
(5) second opening procedure:
As shown in Fig. 3 (a), 3 (b), large end root opening is opened in pincers worker.Order comprises following process:
Repair 4 place's openings to size by the polishing of line file, file, retain large end opening place heat shield;
The heat shield that large end root retains is repaiied in sawing, file, and opening is open-minded;
(6) the 3rd opening procedure:
As shown in Fig. 3 (a), 3 (b), by heat shield trial assembly on housing, with the composite members repair opening of 4 on housing, ensure the gap 0.5mm ~ 3mm of 4 place's openings and composite members.Gap width is as following table 2:
Table 24 place's opening and composite members gap record sheet
(7) both ends of the surface surplus step is processed: solidified after on housing by heat shield suit, machine away both ends of the surface surplus, ensure matching requirements.
Those skilled in the art will readily understand; the foregoing is only preferred embodiment of the present invention; not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. a hatch method for large size, thin walled class heat shield, comprises the steps:
(1) shaping heat shield, and according to the large end diameter of heat shield and the height dimension of heat shield, determine the allowance of the upper and lower end face of heat shield;
(2) on heat shield, the position line of construction opening delimited according to the position of composite members on housing, and the Working position line of both ends of the surface;
(3) first opening procedure: roughing construction opening, and ensure that heat shield large end root opening is not open-minded, specifically comprise: first install heat shield on opening clamp, be secondly connected on rotating disk by described opening clamp, centering center also clamps; Then process place's construction opening according to the position line of described construction opening, and retain the described position line; Finally rotate rotating disk successively, process remaining construction opening and retention position line;
(4) second opening procedure: opening described construction opening to holding root greatly, specifically comprising: first build state construction opening to setting size by described position line file polishing, file, retain large end opening place heat shield; Then, sawing also files the heat shield repaiied large end root and retain, and makes opening open-minded;
(5) the 3rd opening procedure: by above-mentioned heat shield trial assembly on the piece housing of cabin, and repair opening corresponding to the composite members on housing, ensure opening benchmark and composite members unifying datum;
(6) above-mentioned heat shield suit is solidified on described housing, then machine away both ends of the surface surplus, the installation of described heat shield on the piece housing of cabin can be realized.
2. the hatch method of a kind of large size, thin walled class heat shield according to claim 1, wherein, in described step (5), by repair opening to ensure that the gap of each construction opening and composite members is for 0.5mm ~ 3mm.
3. the hatch method of a kind of large size, thin walled class heat shield according to claim 1 and 2, wherein, described composite members is front wing, and it is four.
4. the hatch method of a kind of large size, thin walled class heat shield according to any one of claim 1-3, wherein, described heat shield is fiberglass heat shield.
5. the heat shield utilizing the hatch method according to any one of claim 1-4 to be formed.
6. one kind has the cabin piece housing of heat shield according to claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410616717.9A CN104526257B (en) | 2014-10-31 | 2014-10-31 | The hatch method of large diameter thin wall heat shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410616717.9A CN104526257B (en) | 2014-10-31 | 2014-10-31 | The hatch method of large diameter thin wall heat shield |
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| Publication Number | Publication Date |
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| CN104526257A true CN104526257A (en) | 2015-04-22 |
| CN104526257B CN104526257B (en) | 2016-08-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114147549A (en) * | 2021-12-08 | 2022-03-08 | 北京星航机电装备有限公司 | Method for processing cabin section structure made of inorganic phenolic aerogel |
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2014
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Patent Citations (3)
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| US8230995B2 (en) * | 2010-04-27 | 2012-07-31 | Desert Extrusion Corporation | Container and packaging method for vegetation trimmer line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114147549A (en) * | 2021-12-08 | 2022-03-08 | 北京星航机电装备有限公司 | Method for processing cabin section structure made of inorganic phenolic aerogel |
| CN114147549B (en) * | 2021-12-08 | 2022-09-30 | 北京星航机电装备有限公司 | Method for processing cabin section structure made of inorganic phenolic aerogel |
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| CN104526257B (en) | 2016-08-31 |
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