CN107971358A - A kind of radome fairing sink quick forming method - Google Patents
A kind of radome fairing sink quick forming method Download PDFInfo
- Publication number
- CN107971358A CN107971358A CN201711290431.6A CN201711290431A CN107971358A CN 107971358 A CN107971358 A CN 107971358A CN 201711290431 A CN201711290431 A CN 201711290431A CN 107971358 A CN107971358 A CN 107971358A
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- CN
- China
- Prior art keywords
- sink
- radome fairing
- sagging
- finished product
- forming method
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D5/00—Bending sheet metal along straight lines, e.g. to form simple curves
- B21D5/06—Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
It sink quick forming method the invention discloses a kind of radome fairing, is related to space flight and relevant industries band sink the Quick-forming of radome fairing；Comprise the following steps：（1）Parts to be processed is molded under flat condition and is sunk, obtains part semi-finished product；（2）By step（1）Gained part semi-finished product utilize type tire bending forming, obtain finished product；The present invention can achieve the purpose that flat state carries out the disposable shaping substitution hand finishing that sink.Solves the sagging production cycle length of radome fairing part, labor intensity is big, and the problem of qualification rate is relatively low is examined in efficiency and once friendship.Improve nearly 30 times of sagging processing efficiency, the change that makes to sink it is regular beautiful consistent while meet design requirement, eliminate it is overproof scrap phenomenon, make once to hand over inspection qualification rate to reach 100%.
Description
Technical field
Sink the Quick-forming of radome fairing the present invention relates to space flight and relevant industries band.
Background technology
Space product radome fairing class part category general assembly directly under structural member, be in space product with plate by Plastic Forming and
The thin-walled parts of completion, there is the characteristics of size length is different (length can reach more than 1700mm), different.Can by shape
It is divided into bar shaped radome fairing, end socket shape radome fairing etc..Part material has two kinds, and one kind is steel radome fairing, and one kind is aluminum rectification
Cover.
Due to the difference of product structure, design of part and size are also not quite similar, typical schematic diagram as shown in Figs. 1-3,
Circled portion is lower position in Fig. 1.At the same time, all kinds of radome fairing element precisions all have section final product structure size
Vital effect.The sagging dimensional accuracy at part both ends all would potentially result in the overproof of section Product Assembly.It sink
Dimensional depth is mostly 0.8 mm, and 2~6 mm of transition region of sinking size, sink 22~30 mm of length dimension, radome fairing part length
For 300~1700mm, width is 240~260 mm, and cover depth is 80~120 mm, and material thickness is usually for 0.8mm or so.
For a long time, the molding mode that space flight and relevant industries are sunk for radome fairing is all substantially similar, existing method
There are problems with：
1st, radome fairing sink the time of handwork in process length, labor intensity is big, low production efficiency.Radome fairing part exists
In conventional processes, first crooked part shaping cover type is needed, the process is according to the different otherwise varied of specific accessory size.Complete
Into after bending forming, the system of need to striking by hand, which is sunk, to be molded.Sink forming process in, worker first have to by part be positioned at type tire it
On, then the sagging part of part is bit by bit tapped using hammer and bakelite backing plate, is allowed to be bonded with type tire.Herein
During percussion worker need constantly according to the surface state of the deflection of part and material to tap dynamics and tap direction into
Row adjustment, the neighbouring material that sink to part carries out percussion repeatedly, until part pastes tire completely.For veteran worker
For, molding process of entirely sinking was at 20 minutes to 30 minutes, and whole sink was molded for the general worker of technology
Journey is more than 40 minutes；
2nd, surface quality of workpieces is low, and it is excessively thin and cause part is overproof to scrap local material easily occur.In the whole shaping of part
During, the percussion that worker needs to carry out part repeatedly is molded, and when worker's technology is not really up to the mark, when state is not so good, pole has can
It can be spent greatly due to worker's percussion power, or tapping the continuous accumulation of deformation causes the part material surface hammer trace nearby that sink serious
Or it is excessively thinning, part is ultimately caused since surface quality is low or excessively thinning, it is overproof to scrap；
3rd, part sink, and place's size is inaccurate, and product first-time qualification rate is low.Part fully relies on people in sagging forming process
The percussion repeatedly of work and be molded, thus sink place straight line fully rely on each time tap be composed, by percussion one by one
Point combination has finally constituted the sagging straightway of part.This molding mode by putting to line, has fully relied on the technology of worker
Level ensures the dimensional accuracy of part, thus Forming Quality is extremely unstable, for the preferable worker of technology, place of sinking
Straightness can reach 0.3 or so, its straightness may be more than 1 for the poor worker of technology；Meanwhile manually into
Type sink the depth dimensions at place will not be exactly accurate, and 0.8mm is deep for the preferable worker of technology sink, its depth can
To ensure in the range of 0.8-1.2mm, for the poor worker of technology, then can only ensure within 0.7-1.5mm；Again
Then, the flatness near sinking is also due to be manually molded not enough accurately, the preferable worker of technology also can only ensure to sink
The flatness of neighbouring part is within 0.8；
To sum up, the wide in variety of such part, quantity are big, so striking by hand, to be made shape slower, and production cycle length, labor intensity is big,
Efficiency and once hand over inspection qualification rate relatively low, become a bottleneck for restricting space product general assembly progress, and cannot have for a long time
Effect solves.
The content of the invention
The purpose of the present invention is that providing a kind of radome fairing sink quick forming method, to solve the above problems.
To achieve these goals, the technical solution adopted by the present invention is such：A kind of radome fairing sink quick forming method,
Comprise the following steps：
（1）Parts to be processed is molded under flat condition and is sunk, obtains part semi-finished product；
（2）By step（1）Gained part semi-finished product utilize type tire bending forming, obtain finished product.
As preferable technical solution, step（1）In, it is sunk using sagging shaping mold forming.
As further preferred technical solution, the structure of the sagging shaping mould is：Including cope plate, lower template, with
And for connecting the straight pin of the fixed cope plate and lower template；The lower template is provided with sagging step and transition region, institute
Cope plate is stated to be provided with and the sagging step and the matched shape of transition region.
The present invention considers the size sinking on radome fairing class part on the basis of radome fairing class parts character is combined
Precision and requirement, innovatively by the traditional processing order " being shaped cover shape, then the system of striking is sunk " of such part, are improved to " first
Die forming sink, and reshapes cover shape " mode；This method has originality, changes the traditional sagging manufacturing process of radome fairing,
Using more scientific reasonable forming sequence, cancel hand finishing process of sinking, ingenious, easy to use, the easy behaviour of brand-new mould structure
Make（One man operation）, manufacture cost is low, versatile, energy consumption is low etc. advantage.By it was verified that this radome fairing
Sink quick forming method, is a kind of processing method for being highly suitable for the shaping that the parts such as thin plate class radome fairing sink.
At the same time, inventor in the innovation shaping scheme science and cleverly devise compacting sink shaping when made
Mould, can carry out the disposable sagging shaping substitution sagging shaping of the system of striking by hand in flat state using the mould, reach
To Quick-forming purpose, entirely sagging forming process can be completed within 1 minute, and can effectively control the size essence of part
Degree
Compared with prior art, the advantage of the invention is that：Flat state can be reached and carry out the disposable shaping substitution hand that sink
The purpose of work shaping.Solve radome fairing part sink the production cycle length, labor intensity is big, efficiency and once hand over inspection qualification rate compared with
The problem of low.Nearly 30 times of sagging processing efficiency is improved, meeting design while making to sink the regular beauty become unanimously will
Ask, eliminate it is overproof scrap phenomenon, make once to hand over inspection qualification rate to reach 100%.
Brief description of the drawings
Fig. 1 is the structure diagram of the radome fairing of the present invention；
Fig. 2 is the A-A views of Fig. 1；
Fig. 3 is the B-B views of Fig. 1；
Fig. 4 is the structure diagram of the mould of the embodiment of the present invention.
In figure：1st, cope plate；2nd, lower template；3rd, straight pin；4th, radome fairing part to be processed.
Embodiment
The present invention will be further described with reference to the accompanying drawings.
Embodiment：
A kind of radome fairing sink quick forming method, comprises the following steps：
（1）Parts to be processed is molded under flat condition using mould and is sunk, obtains part semi-finished product；
（2）By step（1）Gained part semi-finished product utilize type tire bending forming, obtain finished product；
Specifically：
Inventor is sunk finishing die in the radome fairing designed radome fairing that sink in quick forming method, as shown in figure 4, by upper
Template 1, lower template 2, two are used for 3 compositions of straight pin for connecting and positioning, and according to sagging size, Aided design has not respectively
Same specification.Sagging finishing die in this quick forming method is processed by drawing based on lower template 1 in lower template 1
(transition region refers to connect the inclined-plane among sagging step to step and the transition region of sinking, i.e. in Fig. 4 on radome fairing part 4 to be processed
That a bit of inclined-plane), width dimensions before width is not bent slightly larger than radome fairing part to be processed, 1 material of lower template thickness
Intensity requirement can be met by spending 20 mm；Cope plate 2 equally processes by drawing to sink step and transition region with lower template 2
Matched shape, width are equal to after the small crimp of spares bend before cover type to be formed interior shape spreading width size between two small crimps, and two
There is the bending radius for the i.e. small crimps of fillet R being consistent with drawing at end（The upper 90 ° of corners of Fig. 3 B-B）, template thickness is with
Template 2 is identical；Straight pin 3 is processed into the cylinders of Ф 10 × 36, after its length may not exceed cope plate 1 and the closure of lower template 2
Total height；Such as the assembling of Fig. 4 samples, notice that straight pin 3 is installed and connected in the position of cope plate 1 and lower template 2, need to be according under radome fairing
Sunken length dimension is chosen, and is positioned for part termination；Gap between cope plate 1 and lower template 2 should be according to be added carefully and neatly done
Stream cover part material thickness determines, and ensures uniformity, and fit clearance is not more than 0.05mm.When formation of parts sink, first
Lower template 2 is positioned on ordinary press, then needs processing to sink one radome fairing part 4 to be processed and is put in lower template 2
Upper snap straight pin 3, alignment straight pin 3 cover cope plate 1, and starting forcing press can be real by cope plate 1, the extruding of lower template 2
Sagging pressure forming.After testing, its machining accuracy is not more than 0.1mm, and higher meets panel beating required precision.It sink
Bending forming process is carried out after shaping again, the part obtained by this kind of mode has the surface quality of higher, no hammer hammering
Trace, sinking, place's seamed edge straightness is high, and shaping speed is fast.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (3)
- The quick forming method 1. a kind of radome fairing sink, it is characterised in that comprise the following steps：（1）Parts to be processed is molded under flat condition and is sunk, obtains part semi-finished product；（2）By step（1）Gained part semi-finished product utilize type tire bending forming, obtain finished product.
- The quick forming method 2. a kind of radome fairing according to claim 1 sink, it is characterised in that step（1）In, use The shaping mold forming that sink sink.
- The quick forming method 3. a kind of radome fairing according to claim 2 sink, it is characterised in that the sagging shaping mould Structure be：Including cope plate, lower template, and for connecting the straight pin of the fixed cope plate and lower template；Under described Template-setup has sagging step and transition region, and the cope plate is provided with and the sagging step and the matched shape of transition region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711290431.6A CN107971358B (en) | 2017-12-08 | 2017-12-08 | Rapid forming method for sinking of fairing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711290431.6A CN107971358B (en) | 2017-12-08 | 2017-12-08 | Rapid forming method for sinking of fairing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107971358A true CN107971358A (en) | 2018-05-01 |
| CN107971358B CN107971358B (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711290431.6A Active CN107971358B (en) | 2017-12-08 | 2017-12-08 | Rapid forming method for sinking of fairing |
Country Status (1)
| Country | Link |
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| CN (1) | CN107971358B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108704976A (en) * | 2018-05-03 | 2018-10-26 | 合肥江航飞机装备有限公司 | A kind of processing method of sagging part |
| CN109483923A (en) * | 2018-07-13 | 2019-03-19 | 中国航空工业集团公司济南特种结构研究所 | A kind of device sinking for composite material cover |
| CN109482737A (en) * | 2018-11-30 | 2019-03-19 | 宁波凯荣船用机械有限公司 | Film-type liquefied natural gas cargo tank maintenance system stainless steel wave card nut cap makes tooling and manufacture craft |
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| JP2012152785A (en) * | 2011-01-26 | 2012-08-16 | Mitsubishi Alum Co Ltd | Extrusion die device, and extrusion method |
| CN203018564U (en) * | 2012-12-13 | 2013-06-26 | 厦门太古飞机工程有限公司 | Section bar sagging mould |
| JP2013128936A (en) * | 2011-12-20 | 2013-07-04 | Amada Co Ltd | Press brake |
| CN103639297A (en) * | 2013-11-28 | 2014-03-19 | 江西洪都航空工业集团有限责任公司 | Hot pressing sinking die |
| CN105081009A (en) * | 2015-09-14 | 2015-11-25 | 江西洪都航空工业集团有限责任公司 | Correction cushion block for large roll-bent skin part |
| CN205393331U (en) * | 2016-03-15 | 2016-07-27 | 中国航天科工集团第六研究院二一○所 | Aircraft radome fairing forming device |
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2017
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| JP2012152785A (en) * | 2011-01-26 | 2012-08-16 | Mitsubishi Alum Co Ltd | Extrusion die device, and extrusion method |
| JP2013128936A (en) * | 2011-12-20 | 2013-07-04 | Amada Co Ltd | Press brake |
| CN203018564U (en) * | 2012-12-13 | 2013-06-26 | 厦门太古飞机工程有限公司 | Section bar sagging mould |
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| 王海宇: "《飞机钣金工艺学》", 28 February 2011 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108704976A (en) * | 2018-05-03 | 2018-10-26 | 合肥江航飞机装备有限公司 | A kind of processing method of sagging part |
| CN109483923A (en) * | 2018-07-13 | 2019-03-19 | 中国航空工业集团公司济南特种结构研究所 | A kind of device sinking for composite material cover |
| CN109483923B (en) * | 2018-07-13 | 2020-11-13 | 中国航空工业集团公司济南特种结构研究所 | Device for sinking composite material cover body |
| CN109482737A (en) * | 2018-11-30 | 2019-03-19 | 宁波凯荣船用机械有限公司 | Film-type liquefied natural gas cargo tank maintenance system stainless steel wave card nut cap makes tooling and manufacture craft |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107971358B (en) | 2020-07-28 |
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| CB02 | Change of applicant information |
Address after: 610000 Sichuan Chengdu economic and Technological Development Zone (Longquanyi District) 189 Applicant after: Sichuan spaceflight Long March Equipment Manufacturing Co., Ltd. Address before: 610199 No. 189, road, Longquan Town, Longquanyi District, Sichuan. Applicant before: Changzheng Machinery Factory, China Astronautics Science and Technology Group Co |
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