CN102517427B - Device and method for reinforcing surfaces of assembly structural member holes - Google Patents
Device and method for reinforcing surfaces of assembly structural member holes Download PDFInfo
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- CN102517427B CN102517427B CN 201110426984 CN201110426984A CN102517427B CN 102517427 B CN102517427 B CN 102517427B CN 201110426984 CN201110426984 CN 201110426984 CN 201110426984 A CN201110426984 A CN 201110426984A CN 102517427 B CN102517427 B CN 102517427B
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- gas
- assembly structure
- diffusion shell
- structure spare
- gas piping
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Abstract
The invention discloses a device and a method for reinforcing surfaces of assembly structural member holes. The device comprises an air pipeline (1), two diffusion covers (2), two sealing pads (3), a lower air joint (4), an upper air joint (5) and an exhaust net (6); the reinforcement method comprises the steps of: driving an aluminum alloy pill to circularly move in a circular path by the air to impact the reinforced surface of an assembly structural member hole so as to change the stress level on the surface of the hole. According to the invention, the device is simple in structure, and the method is convenient for operation, and the device and the method are fit for reinforcing the surface of any assembly structural member hole, thereby solving the technical problem that the surfaces of a part of large-sized assembly structural member holes cannot be reinforced in a shot blasting reinforcement manner.
Description
Technical field
The invention belongs to flyer manufacturing technology field, particularly about the device and method of the surface strengthening in hole on the aircraft assembly structure spare.
Background technology
The anti-fatigue performance in aircraft assembly structure spare hole is the factor that needs emphasis to consider in the aircraft assembling interconnection technique, and the crackle overwhelming majority on the body originates from the surface of the connecting hole on the structural part.And aircraft long lifetime interconnection technique normally adopts the mode that changes the hole surface stress level, improves the anti-fatigue performance in hole, thereby improves the connection lifetime of assembly structure spare.The mode of strengthening for aircraft assembly structure spare hole surface generally adopts the shot peening strengthening mode.
This just brings following problem: the shot peening strengthening process is subjected to the lathe specification limits, and the large-scale assembly structure spare of part (can reach 20m * 5m * 1m) can't carry out shot peening strengthening at equipment as integral wing tank overall dimension.Therefore, need design a kind of new assembly structure spare hole intensifying device and method, to satisfy the Technology Need that the aircraft long lifetime connects.
Summary of the invention
Purpose of the present invention: surface strengthening device and the method in a kind of novel assembly structure spare hole are provided, and the hole that solves on the large-scale assembly structure spare of part can't adopt the shot peening strengthening mode to carry out the technical barrier of surface strengthening.
Technical scheme of the present invention is: the device that a kind of assembly structure spare hole surface is strengthened, comprise gas piping 1, two diffusion shells 2, two gaskets 3, bottom pneumatic fitting 4, upper air joint 5, exhaust net 6, and it is characterized in that:
Bottom pneumatic fitting 4, upper air joint 5 are the tubular-shaped structures of wall thickness 3mm with gas piping 1 welding end, and the other end selection standard tube stub is used for connecting source of the gas; By stopping up one of them pneumatic fitting, connect another pneumatic fitting, to form the different gas circuit of suitable, counterclockwise both direction during work.
Simultaneously, the invention provides the method that a kind of assembly structure spare hole surface is strengthened, concrete steps comprise:
1, needs to strengthen assembly structure spare hole surface with the acetone cleaning, remove surface and oil contaminant and impurity;
2, this device is installed in need and strengthens on the assembly structure spare, the assurance diffusion shell covers fully and is reinforced assembly structure spare;
3, the screw thread on adjustment diffusion shell and the gas piping makes diffusion shell compress gasket, and the assurance gasket tightly is fitted in and is reinforced assembly structure spare hole upper and lower surface;
4, be that 3mm aluminium alloy bullet is from the upper air joint is packed gas piping into 20～25g diameter;
5, the upper air joint is linked to each other with source of the gas, and stop up the bottom pneumatic fitting, to form counterclockwise gas circuit;
6, open source of the gas, and pressure is adjusted to 3.0～3.5KPa, close source of the gas after 2～3min is strengthened in the circulation of aluminium alloy bullet;
7, the bottom pneumatic fitting is linked to each other with source of the gas, and stop up the upper air joint, to form clockwise gas circuit;
8, open source of the gas, and pressure is adjusted to 3.0～3.5KPa, close source of the gas after 3～4min is strengthened in the circulation of aluminium alloy bullet;
9, remove this intensifying device, cleaning aluminium alloy bullet is reinforced assembly structure spare hole surface with the acetone cleaning, finishes forced working.
Advantage of the present invention and beneficial effect: apparatus structure is simple, easy to operate, strengthens applicable to any assembly structure spare hole surface, has solved the large-scale assembly structure spare of part hole and can't adopt the shot peening strengthening mode to carry out the technical barrier of surface strengthening.
Description of drawings
Fig. 1 is mounting structure hole surface intensifying device structural representation of the present invention;
Fig. 2 is diffusion shell structural representation of the present invention;
Fig. 3 is gasket structure synoptic diagram of the present invention;
Fig. 4 is pneumatic fitting structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
The device that a kind of mounting structure hole surface is strengthened is made up of gas piping 1, diffusion shell 2, gasket 3, bottom pneumatic fitting 4, upper air joint 5, exhaust net 6.
(1) gas piping 1 uses the steel tube material of wall thickness 3mm, forms back-shaped gas passage by bending forming and welding back.Gas piping 1 is shaped on outside screw, length of thread 20mm with diffusion shell 2 connecting portion cars.Have place exhaust net 6 on the gas piping 1, between 50～70 of the mesh quantity, the netted hole diameter is 1mm, is used for making the gas piping 1 inner draught head that forms, and guarantees that air-flow is unobstructed.
(2) diffusion shell 2 is the cylindrical step housing of wall thickness 4mm, and diffusion shell 2 is used for connecting gas piping 1, makes gas piping 1 and be reinforced assembly structure spare hole to form the gas passage.Diffusion shell 2 is reinforced assembly structure spare hole surface upper and lower at assembly structure spare and arranges one respectively.Diffusion shell top 21 car systems and the outside screw that gas piping 1 outside screw matches make diffusion shell 2 and gas piping 1 link together length of thread 10mm.During work, by rotation diffusion shell 1, diffusion shell top 21 internal threads are adjusted up and down along gas piping 1 outside screw, can be made diffusion shell 2 compress gasket 3, assurance gasket 3 tightly is fitted in and is reinforced assembly structure spare hole surface.Diffusion shell bottom 22 bore dias ratio is reinforced the big 10mm of assembly structure spare bore dia, the structural part hole can be covered fully to guarantee 22 holes, diffusion shell bottom.
(3) gasket 3 is ring-shaped rubber spare, is used for diffusion shell 2 and is reinforced sealing structure between the piece surface.Gasket 3 internal diameters are identical with diffusion shell bottom 22 hole internal diameters, and gasket 3 external diameters are identical with diffusion shell bottom 22 hole external diameters.
(4) upper air joint 4 and bottom pneumatic fitting 5 are source of the gas and gas piping transom.Pneumatic fitting respectively arranges one at the device upper and lower ends, can connect another pneumatic fitting by stopping up one of them pneumatic fitting during work, to form along the counterclockwise different gas circuit of both direction.Pneumatic fitting and gas piping 1 welding end are the tubular-shaped structures of wall thickness 3mm, and pneumatic fitting the other end selection standard tube stub is used for connecting source of the gas.
Adopt the method for this assembly structure spare hole surface intensifying device to be:
The first step is to be reinforced assembly structure spare hole surface with the acetone cleaning, removes surface and oil contaminant and impurity.
Second step was this device to be installed in need to strengthen on the assembly structure spare, and assurance diffusion shell 2 covers fully and is reinforced assembly structure spare.
The 3rd step was the screw thread of adjusting on diffusion shell 2 and the gas piping 1, made diffusion shell 2 compress gasket 3, and assurance gasket 3 tightly is fitted in and is reinforced assembly structure spare hole upper and lower surface.
The 4th step was to be during 3mm aluminium alloy bullet is packed gas piping into from upper air joint 5 with 20～25g diameter.
The 5th step was that upper air joint 5 is linked to each other with source of the gas, and stopped up bottom pneumatic fitting 4, to form counterclockwise gas circuit.
The 6th step was to open origin, and pressure is adjusted to 3.0～3.5KPa, closed source of the gas after 2～3min is strengthened in the circulation of aluminium alloy bullet.
The 7th step was that bottom pneumatic fitting 5 links to each other with source of the gas, and stopped up upper air 4 joints, to form clockwise gas circuit.
The 8th step was to open origin, and pressure is adjusted to 3.0～3.5KPa, closed source of the gas after 3～4min is strengthened in the circulation of aluminium alloy bullet.
The 9th step was to remove this intensifying device, and cleaning aluminium alloy bullet is reinforced assembly structure spare hole surface with the acetone cleaning, finishes forced working.
Claims (2)
1. the device that assembly structure spare hole surface is strengthened comprises gas piping (1), two diffusion shells (2), two gaskets (3), bottom pneumatic fitting (4), upper air joint (5), exhaust net (6), it is characterized in that:
Gas piping (1) is the steel tube material, forms back-shaped gas passage by bending forming and welding back; Gas piping (1) is shaped on outside screw with diffusion shell (2) connecting portion car; Have place exhaust net (6) on the gas piping (1), be used for making the inner draught head that forms of gas piping, guarantee that air-flow is unobstructed; Diffusion shell (2) is cylinder step housing, is divided into top (21) and bottom (22); Be reinforced assembly structure spare hole surface upper and lower at assembly structure spare a diffusion shell (2) is set respectively; Top (21) car system and the outside screw that the gas piping outside screw matches of each diffusion shell (2) link together diffusion shell (2) and gas piping (1); It is big that the bottom of diffusion shell (22) bore dia ratio is reinforced assembly structure spare bore dia, the structural part hole can be covered fully to guarantee diffusion shell (2); Gasket (3) is ring-shaped rubber spare, is used for diffusion shell (2) and is reinforced sealing structure between the structural part surface; The internal diameter of gasket (3) is identical with the base apertures internal diameter of diffusion shell (2), and gasket (3) external diameter is identical with hole, bottom (22) external diameter of diffusion shell (2); Bottom pneumatic fitting (4), upper air joint (5) are tubular-shaped structures with gas piping (1) welding end, and the other end selection standard tube stub is used for connecting source of the gas; By stopping up one of them pneumatic fitting, connect another pneumatic fitting, to form the different gas circuit of suitable, counterclockwise both direction during work.
An assembly structure spare hole surface strengthen method, it is characterized in that concrete steps comprise:
1) needs to strengthen assembly structure spare hole surface with the acetone cleaning, remove surface and oil contaminant and impurity;
2) device that the described assembly structure spare hole surface of claim 1 is strengthened is installed in needs to strengthen on the assembly structure spare, and the assurance diffusion shell covers fully and is reinforced assembly structure spare;
3) screw thread on adjustment diffusion shell and the gas piping makes diffusion shell compress gasket, and the assurance gasket tightly is fitted in and is reinforced assembly structure spare hole upper and lower surface;
4) be that 3mm aluminium alloy bullet is from the upper air joint is packed gas piping into 20～25g diameter;
5) the upper air joint is linked to each other with source of the gas, and stop up the bottom pneumatic fitting, to form counterclockwise gas circuit;
6) open source of the gas, and pressure is adjusted to 3.0～3.5KPa, close source of the gas after 2～3min is strengthened in the circulation of aluminium alloy bullet;
7) the bottom pneumatic fitting is linked to each other with source of the gas, and stop up the upper air joint, to form clockwise gas circuit;
8) open source of the gas, and pressure is adjusted to 3.0～3.5KPa, close source of the gas after 3～4min is strengthened in the circulation of aluminium alloy bullet;
9) remove the device that this assembly structure spare hole surface is strengthened, cleaning aluminium alloy bullet is reinforced assembly structure spare hole surface with the acetone cleaning, finishes forced working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110426984 CN102517427B (en) | 2011-12-16 | 2011-12-16 | Device and method for reinforcing surfaces of assembly structural member holes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110426984 CN102517427B (en) | 2011-12-16 | 2011-12-16 | Device and method for reinforcing surfaces of assembly structural member holes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102517427A CN102517427A (en) | 2012-06-27 |
| CN102517427B true CN102517427B (en) | 2013-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110426984 Expired - Fee Related CN102517427B (en) | 2011-12-16 | 2011-12-16 | Device and method for reinforcing surfaces of assembly structural member holes |
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| CN (1) | CN102517427B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103938135B (en) * | 2014-04-29 | 2015-09-16 | 江苏大学 | Method and the device of aviation aluminum alloy material resistance to shock can be significantly improved |
| CN106498473A (en) * | 2016-12-07 | 2017-03-15 | 中国航空工业集团公司北京航空材料研究院 | A kind of 2297 T87 aluminium lithium alloy aviation part sulfur acid anodizing pre-treating methods |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0133937A1 (en) * | 1983-08-17 | 1985-03-13 | Lonza Ag | Process for descaling loops |
| US6189356B1 (en) * | 2000-02-17 | 2001-02-20 | General Electric Company | Method and apparatus for peening |
| JP2005083037A (en) * | 2003-09-08 | 2005-03-31 | Noriatsu Kojima | Cleaning device for drainage pipe |
| CN101265513A (en) * | 2008-01-23 | 2008-09-17 | 上海新亚欣科技有限公司 | Austenite stainless heat-resisting seamless steel pipe internal wall shot-blasting strengthening technique and device |
| CN201309122Y (en) * | 2008-11-24 | 2009-09-16 | 中北大学 | Inner hole surface hardening equipment for ultralong pores |
| CN101775469A (en) * | 2009-12-19 | 2010-07-14 | 成都飞机工业（集团）有限责任公司 | Rotoblast intensification device for inner surface of small pores |
-
2011
- 2011-12-16 CN CN 201110426984 patent/CN102517427B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0133937A1 (en) * | 1983-08-17 | 1985-03-13 | Lonza Ag | Process for descaling loops |
| US6189356B1 (en) * | 2000-02-17 | 2001-02-20 | General Electric Company | Method and apparatus for peening |
| JP2005083037A (en) * | 2003-09-08 | 2005-03-31 | Noriatsu Kojima | Cleaning device for drainage pipe |
| CN101265513A (en) * | 2008-01-23 | 2008-09-17 | 上海新亚欣科技有限公司 | Austenite stainless heat-resisting seamless steel pipe internal wall shot-blasting strengthening technique and device |
| CN201309122Y (en) * | 2008-11-24 | 2009-09-16 | 中北大学 | Inner hole surface hardening equipment for ultralong pores |
| CN101775469A (en) * | 2009-12-19 | 2010-07-14 | 成都飞机工业（集团）有限责任公司 | Rotoblast intensification device for inner surface of small pores |
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| Publication number | Publication date |
|---|---|
| CN102517427A (en) | 2012-06-27 |
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Granted publication date: 20130710 Termination date: 20181216 |