CN205078778U - Bloated shape sealing device of flexible aluminum alloy sheet cylindric piece explosion - Google Patents
Bloated shape sealing device of flexible aluminum alloy sheet cylindric piece explosion Download PDFInfo
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- CN205078778U CN205078778U CN201520833052.7U CN201520833052U CN205078778U CN 205078778 U CN205078778 U CN 205078778U CN 201520833052 U CN201520833052 U CN 201520833052U CN 205078778 U CN205078778 U CN 205078778U
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Abstract
The utility model relates to a bloated shape sealing device of flexible aluminum alloy sheet cylindric piece explosion, air exhaust nozzle is installed to the through -hole of mould one side, and air exhaust nozzle passes through the pipeline and passes through vacuum pressure meter, switch, filter and vacuum pump connection in proper order, is equipped with the TNT explosive in the mould, is equipped with the work piece between TNT explosive and the mould inner wall, and the inner wall and the mould both ends of work piece are packaged with vacuum film, and sealed glue has all been laid to the junction. The utility model discloses can seal up along with the shape of work piece, not high to the rigidity requirement of work piece, it expands with the explosion of big shaped steel mould in aqueous to be applicable to takes out vacuum seal, this sealing device easy operation, cheap cost, economical and practical between the shape sheet metal cylindrical work pieces.
Description
Technical field
The utility model relates to Sheet Metal Forming Technology in machine industry, particularly the exploding and expanding seal arrangement of the aluminium alloy sheet cylindrical member postwelding of large-size.
Background technique
In the large-scale sheet metal part construction of manufacture, often can run into the shaping of polylith thin aluminum sheet and be welded into a cylindrical shell or container, shape need is accurate, and weld seam requires airtight.Usual employing bulging die carries out bulging.The method of bulging has hydraulic pressure, oil pressure and exploding and expanding etc., and wherein exploding and expanding is the huge explosive power utilizing explosive charge to produce, and by hydraulic pressure, workpiece is overlayed mould, and general workpiece is more smaller than mould, and mould and workpiece have space.Exploding and expanding utilizes explosive charge to produce temporary impact ripple workpiece is overlayed mould, and air during shaping in space need be drained, otherwise can build-up of air in mold indentions district, instantaneous huge energy pressurized air, and workpiece is ejected bulge or top is split.Concrete enforcement as shown in Figure 1, is generally that taken out by the air in space with vacuum pump 8, space is region of no pressure in both mold ends dress rubber seal 3.But for thin aluminum sheet workpiece 2, rigidity is not good enough, two ends sealing is very difficult, and the degree of vacuum of extraction does not reach requirement, and bulge or explosion easily appear in the workpiece of shaping.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of flexible seal device of novelty, solves due to thin aluminum sheet workpiece poor rigidity, two ends difficulty sealing, the degree of vacuum of taking out does not reach requirement, causes the workpiece of shaping to occur bulge or explosion problem, improves exploding and expanding workpiece up-to-standard rate.
The utility model takes following technological scheme to realize above-mentioned purpose.Flexible aluminium alloy sheet cylindrical member exploding and expanding seal arrangement, the through hole of mould side is provided with air exhaust nozzle, air exhaust nozzle is connected with vacuum pump through pressure vacuum gauge, switch, filter successively by pipeline, mould is built with TNT explosive, between TNT explosive and mould inner wall, workpiece is housed, inwall and the both mold ends of workpiece are packaged with vacuum film, and joint is all laid with sealer.
The utility model is not enough for the workpiece rigidity that thin aluminum sheet is shaping, adopt and carry out flexible sealing in the two ends of mould and workpiece by using vacuum film and sealer to beat vacuum bag, two pieces of annular V LBF600 vacuum films are cut at the two ends of mould and workpiece, jail is pasted respectively on mould and workpiece with LG150 sealing strip, connect pressure vacuum gauge, switch and vacuum pump pipeline with air exhaust nozzle to carry out vacuumizing test, degree of vacuum is loaded onto TNT explosive and is hung in water and carry out exploding and expanding after reaching-0.098MPa.
The utility model seal arrangement advantage is, can seal with the shape of workpiece, not high to the rigid requirements of workpiece, be applicable to vacuumize sealing with between large scale steel mould exploding and expanding thin plate cylindrical work pieces in water, sealing device is simple to operate, low cost, economical and practical.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of forming unit in prior art.
Fig. 2 is the schematic diagram of the utility model device.
In figure: 1. mould, 2. workpiece, 3. rubber seal, 4. sealing strip, 5. air exhaust nozzle, 6. pressure vacuum gauge, 7. switch, 8. vacuum pump, 9.TNT explosive, 10. filter, 11. vacuum films, 12. sealers.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.See Fig. 2, flexible aluminium alloy sheet cylindrical member exploding and expanding seal arrangement, the through hole of mould 1 side is provided with air exhaust nozzle 5, air exhaust nozzle 5 is connected with vacuum pump 8 through pressure vacuum gauge 6, switch 7, filter 10 successively by pipeline, mould 1 is built with TNT explosive 9, between TNT explosive 9 and mould 1 inwall, workpiece 2 is housed, inwall and mould 1 two ends of workpiece 2 are packaged with vacuum film 11, and joint is all laid with sealer 12.
The utility model makes vacuum-pumping density seal structure between mould 1 and workpiece 2, can with workpiece 1 and the laminating of mould 2 profile flexibility, and rely on sealing strip 4 to seal, sealing strip 4 vacuum film 11 that bonds seals at atmosheric pressure.Institute's suction is higher, and sealing is better, makes this device realize sealing function.Described vacuum film 11 sealing strip 4 connecting mold 1 and workpiece 2 one end, the other end workpiece 2 and mould 1 are also connected with vacuum film 11, sealing strip 4, vacuum on mould 1 connects mouth 5 and is connected with pressure vacuum gauge 6 and switch 7, switch 7 is connected with vacuum pump 8 by the filter 10 on pipeline, the interior periphery of vacuum film 11 is all connected with mould 1 by sealing strip 4, form Seal cage, load onto explosive 9 after carrying out being evacuated to-0.098MPa with vacuum pump 8 and hang in water by connecing mouth 5, pressure vacuum gauge 6, switch 7, pipeline 10 and carry out exploding and expanding.
embodiment 1:below introduce an embodiment of the present utility model, segment length L=1870mm after aircraft S shape intake duct, variable cross section is irregular aerodynamic configuration, and periphery is the cylindrical member of sealing.Be fuselage fuel cell outside periphery, cross-sectional maximum dimension is 850X720, and front-end face is oval, and smooth transition is to ear end face gradually, and axis is S shape buckling curve, is welded after being shaped by three pieces of б 1.5LF6 coverings.This intake duct profile is complicated, and form accuracy is higher, and shaping difficulty is comparatively large, adopts exploding and expanding technique after assembly welding welding.Vacuumize between exploding and expanding mould 1 and workpiece 2 to seal and adopt the utility model flexible seal device, two pieces of annular V LBF600 vacuum films 11 are cut at the two ends of mould 1 and workpiece 2, jail is pasted respectively on mould 1 and workpiece 2 with LG150 sealing strip 4, connect pressure vacuum gauge 6, switch 7 and vacuum pump 8 pipeline with air exhaust nozzle 5 to carry out vacuumizing test, degree of vacuum is loaded onto explosive 9 and is hung in water and carry out exploding and expanding after reaching-0.098MPa.
embodiment 2:below introduce another embodiment of the present utility model.Aircraft drop tank leading portion L=1380mm, Er time Qu Xian rotation is turned, and diameter Ф 480mm is welded by three sections of covering mould pressings, and profile is aerodynamic configuration, and profile tolerance is+0.3 ~-0.5, and material is LF3, and thickness is 1.2, and postwelding adopts exploding and expanding technique.Sealing between exploding and expanding mould 1 and workpiece 2 adopts the utility model flexible seal device, two pieces of annular V LBF600 vacuum films 11 are cut at the two ends of mould 1 and workpiece 2, jail is pasted respectively on mould 1 and workpiece 2 with LG150 sealing strip 4, connect pressure vacuum gauge 6, switch 7 and vacuum pump 8 pipeline with air exhaust nozzle 5 to carry out vacuumizing test, degree of vacuum is loaded onto explosive 9 and is hung in water and carry out exploding and expanding after reaching-0.098MPa.
Claims (1)
1. flexible aluminium alloy sheet cylindrical member exploding and expanding seal arrangement, the through hole of mould side is provided with air exhaust nozzle, air exhaust nozzle is connected with vacuum pump through pressure vacuum gauge, switch, filter successively by pipeline, mould is built with TNT explosive, between TNT explosive and mould inner wall, workpiece is housed, it is characterized in that, inwall and the both mold ends of workpiece are packaged with vacuum film, and joint is all laid with sealer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833052.7U CN205078778U (en) | 2015-10-27 | 2015-10-27 | Bloated shape sealing device of flexible aluminum alloy sheet cylindric piece explosion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520833052.7U CN205078778U (en) | 2015-10-27 | 2015-10-27 | Bloated shape sealing device of flexible aluminum alloy sheet cylindric piece explosion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205078778U true CN205078778U (en) | 2016-03-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520833052.7U Expired - Fee Related CN205078778U (en) | 2015-10-27 | 2015-10-27 | Bloated shape sealing device of flexible aluminum alloy sheet cylindric piece explosion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205078778U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088635A (en) * | 2016-11-23 | 2018-05-29 | 北京机电工程研究所 | A kind of non-tight polymorphic structure inner pressure test device |
| CN112207411A (en) * | 2020-09-30 | 2021-01-12 | 湖北美科精毅科技有限公司 | Aluminum steel transition joint explosive welding vacuum device for ships |
-
2015
- 2015-10-27 CN CN201520833052.7U patent/CN205078778U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088635A (en) * | 2016-11-23 | 2018-05-29 | 北京机电工程研究所 | A kind of non-tight polymorphic structure inner pressure test device |
| CN112207411A (en) * | 2020-09-30 | 2021-01-12 | 湖北美科精毅科技有限公司 | Aluminum steel transition joint explosive welding vacuum device for ships |
| CN112207411B (en) * | 2020-09-30 | 2022-05-17 | 湖北美科精毅科技有限公司 | Aluminum steel transition joint explosive welding vacuum device for ships |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160309 Termination date: 20161027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |