CN106925892B - The processing unit (plant) and method of pressure oscillation attenuator - Google Patents
The processing unit (plant) and method of pressure oscillation attenuator Download PDFInfo
- Publication number
- CN106925892B CN106925892B CN201710243727.6A CN201710243727A CN106925892B CN 106925892 B CN106925892 B CN 106925892B CN 201710243727 A CN201710243727 A CN 201710243727A CN 106925892 B CN106925892 B CN 106925892B
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- Prior art keywords
- diaphragm
- pressure oscillation
- flexible sheet
- ripple
- plant
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/20—Bonding
- B23K26/21—Bonding by welding
- B23K26/24—Seam welding
- B23K26/28—Seam welding of curved planar seams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The present invention relates to a kind of processing method and device of pressure oscillation attenuator, which includes flexible sheet, sealing device and fixture.Diaphragm be constructed it is discoid and in middle section with the definite shape such as ripples such as sinusoidal, arc-shaped and in metallic membrane of the edge with ring plain.Structure and planar portions are heaved with two or more in the ripple periphery of diaphragm in the circumferential.The one end for heaving structure is connected to the edge waviness of diaphragm ripple, and the other end is connected to the ring plain of diaphragm edge.Two panels diaphragm forms bellows and completes gas filling by certain sealing device and ensure to seal.Include finally punching press, welding, the processing of cutting completion pressure oscillation attenuator via secondary operation.
Description
Technical field
The present invention relates to pressure wave attenuators, the more particularly to processing unit (plant) and method of pressure wave attenuator.
Background technology
A kind of pressure oscillation attenuator is all made of in gasoline in-cylinder direct-jet fuel system high-pressure pump at present to reduce low pressure
The pressure oscillation of fuel in chamber.Such pressure oscillation attenuator is after carrying out laser welding by the edge of two wavy metal diaphragms
One bellows of composition.In order to ensure the performance of pressure oscillation attenuator, it is necessary to inside bellows filled with certain pressure such as 0.1~
The gas of 0.5MPa simultaneously ensures that gas is not revealed.This adds increased the difficulty of processing of pressure oscillation attenuator, to process equipment
There is certain requirement.
In the prior art, the pressure oscillation attenuator installed in high-pressure pump is carried out by the edge of two wavy metal diaphragms
The bellows formed after laser welding.Such as a kind of liquid pulsation damper mechanism and tool disclosed in CN101311523B
There is the high-pressure fuel feed pump of liquid pulsation damper mechanism.Such pressure oscillation attenuator is to be filled with certain pressure gas
It is made after carrying out laser welding to diaphragm edge in the closed container of body.As disclosed a kind of diaphragm in US20100162553A1
The processing method and processing unit (plant) of damper, the device include a pair of fixture relative to each other, and fixture lives one by magnetic-adsorption
To diaphragm, fixture is arranged in pressure vessel.Pressure vessel is sealed and is vacuumized, and a level pressure is then filled with into pressure vessel
The filling gas of power.After this, a pair of of fixture is close to each other so that the edge of a pair of of diaphragm is bonded.Rotary clamp and diaphragm,
It is welded simultaneously in diaphragm edge, completes the processing of diaphragm damper.
In above-mentioned solution, the processing unit (plant) of pressure oscillation attenuator includes the pressure of a pair of of fixture and placing clamp
Container ensures sealing, is on the other hand pressed when diaphragm welds after on the one hand requiring pressure vessel to be filled the gas of certain pressure
Force container will also keep sealing state.This just needs the welding of dedicated process equipment realization pressure oscillation attenuator, product
Manufacturing cost is obviously enhanced.
Invention content
In view of the above existing problems in the prior art, the present invention provides a kind of processing methods and dress of pressure oscillation attenuator
It sets, can not only realize manufacture and the performance of pressure oscillation attenuator, and low to process equipment requirement, the low of product may be implemented
Cost.
To solve the above-mentioned problems, the present invention uses following scheme：
A kind of processing unit (plant) of pressure oscillation attenuator, the processing unit (plant) include flexible sheet, sealing device and folder
Tool；
The flexible sheet construction is in the form of annular discs, and middle section has ripple, and its edge has ring plain；It is described
There are at least two swells and planar portions, the both ends of the swells to distinguish in the circumferential for the central ripple periphery of flexible sheet
It is connected between edges corrugated and ring plain；
The sealing device includes sealing element and two O-rings；Two O-ring is rubber parts and is separately mounted to seal
In the groove upper and lower surfaces of of part；The inner ring surface of the sealing element is machined with concave part, has an aperture in sealing element circumferential direction,
The aperture is disposed through on the outside of sealing element between concave part.
A kind of processing method of pressure oscillation attenuator, includes the following steps：
A. two panels flexible sheet is opposite, keep the planar portions of the ripple periphery of two flexible sheets overlapped and closely pastes
It closes, the central ripple area of two panels flexible sheet forms bellows；
B. in flexible sheet edge grip seal device, the flexible sheet for being clamped with sealing device is mounted on fixture,
And apply axial force F on fixture so that O-ring, which generates, centainly deforms and ensure entire processing unit (plant) sealing；
C. certain pressure is filled with into bellows via the swells of diaphragm ripple periphery by the aperture in sealing element circumferential direction
Filling gas；
D. after filling gas, the swells of punching press diaphragm so that heave structure and be deformed as plane；
E. whole device is rotated, while the welding on circumferencial direction, last cutting film are carried out in flexible sheet ripple periphery
The processing of pressure oscillation attenuator is completed at the edge of piece ripple periphery.
As a further improvement of the above technical scheme：
It is welded as laser welding described in step e.
In step e, when welding, can need not rotate entire processing unit (plant), directly rotate laser welding apparatus and make laser beam
Thus circular-rotation completes the processing of pressure oscillation attenuator.
The technical effects of the invention are that：
The processing method and device of the pressure oscillation attenuator of the present invention, the apparatus structure is simple, pressure wave easy to implement
The processing of dynamic attenuator may be implemented the low input of product and cost effective, while ensure the performance of pressure oscillation attenuator.
Description of the drawings
Figure 1A is the longitudinal section view using a kind of pressure oscillation attenuator of the present invention.
Figure 1B is the vertical view for the pressure oscillation attenuator illustrated in Figure 1A.
Fig. 2 is the longitudinal section view using a kind of pressure oscillation attenuator processing unit (plant) of the present invention.
Fig. 3 A are the longitudinal section views using a kind of flexible sheet of specific embodiments of the present invention.
Fig. 3 B are the vertical views for the flexible sheet illustrated in Fig. 3 A.
Fig. 4 is the partial enlarged view at the I illustrated in Fig. 3 A.
Fig. 5 is the longitudinal section view using the sealing device of the present invention.
Fig. 6 is the schematic diagram using specific embodiments of the present invention.
Fig. 7 is the vertical view of Fig. 6.
In figure：1, pressure oscillation attenuator, 2, processing unit (plant), 3, flexible sheet, 31, middle section, outside 32,33 ripples
It encloses, 34 heave structure, 35, planar portions, 36, edge waviness, 4, sealing device, 41, sealing element, 42, O-ring, 43, groove, 44,
Sealing element inner ring surface, 45, concave part, 46, aperture, 47, on the outside of sealing element, 5, fixture, 6, bellows, F axial forces.
Specific implementation mode
The specific implementation mode of the present invention is described further below in conjunction with the accompanying drawings.
Figure 1A and 1B is a kind of longitudinal section view of pressure oscillation attenuator of the present invention.The pressure oscillation attenuator is especially suitable
For direct spray petrol engine in cylinder fuel pump, it is mounted on the low pressure oil inlet end of direct spray petrol engine in cylinder fuel pump, fuel oil can be reduced
Pressure oscillation.
Fig. 2 is a kind of longitudinal section view of the processing unit (plant) 2 of pressure oscillation attenuator 1 of the present invention.The processing unit (plant) 2 includes
Flexible sheet 3, sealing device 4 and fixture 5.
Flexible sheet 3 is constructed discoid and has the definite shape such as ripples such as sinusoidal, arc-shaped in middle section 31
And in metallic membrane (as shown in figs.3 a and 3b) of the periphery 32,33 with ring plain.The ripple periphery 32 of diaphragm is in the circumferential
Structure 34 and planar portions 35 are heaved with two or more.The one end for heaving structure 34 is connected to the edge of diaphragm ripple
Ripple 36, the other end are connected to the ring plain 33 (as shown in Figure 4) of diaphragm edge.Diaphragm 3 is manufactured by sheet member.
Sealing device 4 is made of (as shown in Figure 5) sealing element 41 and two O-rings 42.Two O-rings 42 be rubber parts and
It is separately mounted in the groove upper and lower surfaces of 43 of sealing element.The inner ring surface 44 of sealing element is machined with concave part 45.Sealing element 4
There is an aperture 46 in circumferential direction.The aperture 46 runs through on the outside of sealing element 47 with concave part 45.
Processing method of the present invention includes the following steps：
A. two panels diaphragm 3 is opposite so that the planar portions of the ripple periphery of two panels diaphragm 3 are overlapped and fit closely,
The central ripple area of two panels diaphragm forms bellows 6.
B. it is clamped with sealing device 4 in diaphragm periphery 33.The diaphragm for being clamped with sealing device is mounted on fixture 5, and
Apply certain axial force F on fixture 5 so that O-ring generates certain deformation and ensures the sealing of entire processing unit (plant).
C. it is filled with into bellows 6 via the structure 34 of heaving of diaphragm ripple periphery by the aperture 46 in 41 circumferential direction of sealing element
The filling gas (as shown in Figure 6) of certain pressure such as 0.1~0.5MPa.
D. after filling gas, punching press diaphragm heaves structure 34 so that heaves structure 34 and is deformed as plane.
E. entire processing unit (plant) 2 is rotated, while the welding on circumferencial direction is carried out (such as Fig. 7 institutes in diaphragm ripple periphery 32
Show), the edge of diaphragm ripple periphery 32 is finally cut, the processing of pressure oscillation attenuator is completed.
Preferably, the welding of the invention is laser welding.
Preferably, welding can so be implemented, that is, not need tumbler, directly rotate laser welding apparatus and make laser
Thus beam circular-rotation completes the processing of pressure oscillation attenuator.
Embodiment provided above is the better embodiment of the present invention, only is used for facilitating illustrating the present invention, not to this hair
It is bright to make any form of restriction, any those of ordinary skill in the art, if not departing from the put forward skill of the present invention
In the range of art feature, using the equivalent embodiment locally changed or modified made by disclosed technology contents, and
Without departing from the technical feature content of the present invention, in the range of still falling within the technology of the present invention feature.
Claims (4)
1. a kind of processing unit (plant) of pressure oscillation attenuator, it is characterised in that：The processing unit (plant) includes flexible sheet, sealing dress
It sets and fixture；
The flexible sheet construction is in the form of annular discs, and middle section has ripple, and its edge has ring plain；The elasticity
The central ripple periphery of diaphragm has at least two swells and planar portions in the circumferential, and the both ends of the swells abut respectively
Between edges corrugated and ring plain；
The sealing device includes sealing element and two O-rings；Two O-ring is rubber parts and is separately mounted to sealing element
In groove upper and lower surfaces of；The inner ring surface of the sealing element is machined with concave part, has an aperture in sealing element circumferential direction, described
Aperture is disposed through on the outside of sealing element between concave part.
2. a kind of processing method of pressure oscillation attenuator, it is characterised in that include the following steps：
A. two panels flexible sheet is opposite, keep the planar portions of the ripple periphery of two flexible sheets overlapped and fits closely, two
The central ripple area of piece flexible sheet forms bellows；
B. in flexible sheet edge grip seal device, the flexible sheet for being clamped with sealing device is mounted on fixture, and
Apply axial force F on fixture so that O-ring, which generates, centainly deforms and ensure entire processing unit (plant) sealing；
C. filling out for certain pressure is filled with into bellows via the swells of diaphragm ripple periphery by the aperture in sealing element circumferential direction
Inflatable body；
D. after filling gas, the swells of punching press diaphragm so that heave structure and be deformed as plane；
E. entire processing unit (plant) is rotated, while the welding on circumferencial direction, last cutting film are carried out in flexible sheet ripple periphery
The processing of pressure oscillation attenuator is completed at the edge of piece ripple periphery.
3. the processing method of pressure oscillation attenuator according to claim 2, it is characterised in that：The weldering in step e
It is connected in laser welding.
4. the processing method of pressure oscillation attenuator according to claim 2, it is characterised in that：In step e, when welding, can
Entire processing unit (plant) need not be rotated, laser welding apparatus is directly rotated and makes laser beam circular-rotation, thus complete pressure wave
The processing of dynamic attenuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243727.6A CN106925892B (en) | 2017-04-14 | 2017-04-14 | The processing unit (plant) and method of pressure oscillation attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710243727.6A CN106925892B (en) | 2017-04-14 | 2017-04-14 | The processing unit (plant) and method of pressure oscillation attenuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106925892A CN106925892A (en) | 2017-07-07 |
| CN106925892B true CN106925892B (en) | 2018-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710243727.6A Active CN106925892B (en) | 2017-04-14 | 2017-04-14 | The processing unit (plant) and method of pressure oscillation attenuator |
Country Status (1)
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| CN (1) | CN106925892B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3823060B2 (en) * | 2002-03-04 | 2006-09-20 | 株式会社日立製作所 | High pressure fuel supply pump |
| WO2005026585A1 (en) * | 2003-09-12 | 2005-03-24 | Eagle Industry Co., Ltd. | Diaphragm damper, and method and device for producing the same |
| CN101012784A (en) * | 2007-01-31 | 2007-08-08 | 长春蓝天密封技术开发有限公司 | Laser welding metal cylinder mat and manufacturing technique |
| JP4686501B2 (en) * | 2007-05-21 | 2011-05-25 | 日立オートモティブシステムズ株式会社 | Liquid pulsation damper mechanism and high-pressure fuel supply pump having liquid pulsation damper mechanism |
| CN201589983U (en) * | 2009-12-29 | 2010-09-22 | 江苏西玛特电器有限公司 | Diaphragm capsule |
| CN203330214U (en) * | 2013-06-20 | 2013-12-11 | 河南航天液压气动技术有限公司 | Forming tool of corrugated diaphragm for pressure reducing valve |
-
2017
- 2017-04-14 CN CN201710243727.6A patent/CN106925892B/en active Active
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| Publication number | Publication date |
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| CN106925892A (en) | 2017-07-07 |
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