CN108150737A - A kind of non-uniform thickness hydroforming flexible composite pipe - Google Patents
A kind of non-uniform thickness hydroforming flexible composite pipe Download PDFInfo
- Publication number
- CN108150737A CN108150737A CN201711496013.2A CN201711496013A CN108150737A CN 108150737 A CN108150737 A CN 108150737A CN 201711496013 A CN201711496013 A CN 201711496013A CN 108150737 A CN108150737 A CN 108150737A
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- China
- Prior art keywords
- supervisor
- hydroforming
- flexible composite
- composite pipe
- uniform thickness
- Prior art date
- 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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- 239000002131 composite material Substances 0.000 title claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 24
- 230000008569 process Effects 0.000 claims abstract description 12
- 238000005452 bending Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000035699 permeability Effects 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 5
- 238000009740 moulding (composite fabrication) Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007688 edging Methods 0.000 description 1
- 239000006052 feed supplement Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
- B21D15/06—Corrugating tubes transversely, e.g. helically annularly
-
- 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
- B21D15/00—Corrugating tubes
- B21D15/04—Corrugating tubes transversely, e.g. helically
- B21D15/10—Corrugating tubes transversely, e.g. helically by applying fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/14—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
- F16L11/15—Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose-connectors, i.e. single members engaging both hoses
- F16L33/02—Hose-clips
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The present invention relates to Tube Hydroforming technical fields, provide a kind of non-uniform thickness hydroforming flexible composite pipe, the looped pipeline including being responsible for and being socketed in respectively the supervisor both ends；The pipe shaft forming wave structure of the supervisor；The supervisor and the socket part of looped pipeline fit closely to form double-layer structure；The supervisor is concordant at the port of looped pipeline；Whereby, the present invention provides a kind of non-uniform thickness hydroforming flexible composite pipe, looped pipeline is socketed by being responsible for both ends and then double-layer structure is formed using the integrally formed method of hydraulic pressure, and is formed on supervisor's pipe shaft using passive hydraulic structure at wave structure and port at both ends and forms boss connection structure；Instead of the welding sequence in traditional handicraft, fatigue strength is significantly improved；Also permeability, oil leak are solved the problems, such as.The thinning rigidity reduced herein in the peak regions of wave structure in forming process so that the present invention, which is applicable to, requires in higher operating mode axial displacement.
Description
Technical field
The present invention relates to Tube Hydroforming technical field more particularly to a kind of non-uniform thickness hydroforming flexible composite pipes.
Background technology
With the development of society and being constantly progressive for human civilization, people propose modern manufacturing industry higher and higher want
It asks, such as in automotive field, emission from vehicles is required with the rising and laws and regulations of the energy and the cost of raw material
It is promoted, the lightweight of vehicle structure, which seems, to become more and more important.The problem of similar is also simultaneously encountered in other industrial circles, from
And cause a kind of structure lightened development trend as modern advanced manufacturing technique.
Fittings hydraulic formation technique is exactly that material consumption, part is light, intensity is high and structure design is flexibly excellent to reduce
Point has adapted to the light-weighted demand for development of the field structures such as automobile and aircraft, and it is domestic and international to become current metal forming field
The hot spot of research.
Fittings hydraulic formation is referred to as a kind of advanced plastic working technique for processing hollow pipe fitting, and forming process is at one
Power transmission medium is used fluid as in the cavity of closing, while internal pressure is applied, cooperation axial feed feed supplement makes pipe also
It is a kind of few without machining, accurate (half is accurate) forming technique belongs to along radial direction by the technique of certain track expansion forming
In advanced manufacturing technology scope.
Bellows is a kind of flexible piece, allows to generate larger deformation under the action of axial force, cross force and moment of flexure,
Mainly as the compliant section of elastic element, metal hose and expansion joint in engineering technology, to compensate because expanding with heat and contract with cold, mechanical position
Pipeline caused by moving or vibrating, the variation of equipment equidimension or axial direction, transverse direction and angular displacement.
Referring to Fig. 1, the conventional production methods of corrugated flexible composite pipe are：The both ends housing of supervisor 1 with ripple struction
Looped pipeline 2 forms bridging arrangement；It is brazed to form weld seam A at bridging arrangement later.In actual use, whole part is in
In vibration environment, therefore fatigue failure is also easy to produce at weld seam A, and also there is the problems such as permeability, oil leak.Conventional production methods
Also there are the problems such as complex technical process, high rejection rate, big labor intensity.
In summary, the existing technology has inconveniences and defects in actual use, so it is necessary to be improved.
Invention content
For it is above-mentioned the defects of, the purpose of the present invention is to provide a kind of non-uniform thickness hydroforming flexible composite pipes, pass through
It is responsible for both ends socket looped pipeline and then double-layer structure is formed, and be responsible for using passive hydraulic structure using the integrally formed method of hydraulic pressure
Wave structure is formed on pipe shaft and boss connection structure is formed at the port at both ends；Instead of the welding in traditional handicraft
Process significantly improves fatigue strength；Also permeability, oil leak are solved the problems, such as.The wave crest area of wave structure in forming process
The thinning rigidity reduced herein in domain so that the present invention, which is applicable to, requires in higher operating mode axial displacement.
To achieve these goals, the present invention provides a kind of non-uniform thickness hydroforming flexible composite pipe, including supervisor and
It is socketed in the looped pipeline at the supervisor both ends respectively；The pipe shaft forming wave structure of the supervisor；
The supervisor and the socket part of looped pipeline fit closely to form double-layer structure；The supervisor at the port of looped pipeline with putting down
Together.
Non- uniform thickness hydroforming flexible composite pipe according to the present invention, the shape of the double-layer structure is straight or bending.
Non- uniform thickness hydroforming flexible composite pipe according to the present invention, the double-layer structure at a side ports are integrally formed
Boss connection structure, another side ports connecting flange or Pa type joints.
Non- uniform thickness hydroforming flexible composite pipe according to the present invention, connecting flange or Pa type joints at the port.
The material of non-uniform thickness hydroforming flexible composite pipe according to the present invention, the supervisor and looped pipeline is stainless steel 304.
Non- uniform thickness hydroforming flexible composite pipe according to the present invention, the thickness of the double-layer structure are not more than 1.5mm.
Non- uniform thickness hydroforming flexible composite pipe according to the present invention, the thickness of the supervisor is no more than 1mm, the looped pipeline
Thickness be 1~3mm.
Non- uniform thickness hydroforming flexible composite pipe according to the present invention, the thickness of the supervisor for 0.3mm, 0.5mm or
0.8mm；The thickness of the looped pipeline is：1.2mm, 1.5mm, 2mm or 2.5mm.
Non- uniform thickness hydroforming flexible composite pipe according to the present invention, the thickness of each peak regions of the wave structure
Less than the thickness of the supervisor.
Non- uniform thickness hydroforming flexible composite pipe according to the present invention, the flexible composite pipe use the integrally formed work of hydraulic pressure
Skill shapes.
The present invention is socketed looped pipeline and then using the integrally formed method formation double-layer structure of hydraulic pressure by being responsible for both ends, and uses
Passive hydraulic structure forms at wave structure and port at both ends on supervisor's pipe shaft and forms boss connection structure；It substitutes
Welding sequence in traditional handicraft, significantly improves fatigue strength；Also permeability, oil leak are solved the problems, such as.In forming process
The thinning rigidity reduced herein in the peak regions of wave structure so that the present invention, which is applicable to, requires more axial displacement
In high operating mode.
Description of the drawings
Fig. 1 is prior art construction schematic diagram；
Fig. 2 is the front view of one embodiment of the invention；
Fig. 3 is the structure diagram of B area of the present invention；
Fig. 4 is the structure diagram of further embodiment of this invention；
Fig. 5 is the structure diagram in D regions of the present invention；
Fig. 6 is the structure diagram in E regions of the present invention；
Fig. 7 is the structure diagram before present invention forming；
Fig. 8 is the structure diagram in F regions of the present invention；
Fig. 9 is the structure diagram of further embodiment of this invention；
1- is responsible in the figure, 2- looped pipelines, 3- boss connection structures, 4- flanges；A- weld seams, C- peak regions.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to the accompanying drawings and embodiments, it is right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 2, the present invention provides a kind of non-uniform thickness hydroforming flexible composite pipes, cover including supervisor 1 and respectively
It is connected on the looped pipeline 2 at 1 both ends of the supervisor；The pipe shaft of the supervisor 1 is equipped with wave structure；
Referring to Fig. 3, the supervisor 1 and the socket part of looped pipeline 2 form double-layer structure；The supervisor 1 and the port of looped pipeline 2
Place is concordant.
The present invention is produced using hydraulic forming method, and detailed process is as follows：
A stocks up
Referring to Fig. 7, Fig. 8；It is socketed looped pipeline 2 respectively being responsible for 1 both ends；Supervisor 1 is in internal layer, and looped pipeline 2 is in outer layer；
B rises forming in advance
The workpiece that set connects is placed on hydraulic forming equipment, leads to high pressure water later and rises in advance, makes the supervisor 1 and looped pipeline
2 socket part fits closely to form the double-layer structure；The internal layer of the double-layer structure is that 1 outer layer of supervisor is looped pipeline 2；Referring to
Fig. 3, Fig. 5；
The passive hydraulic structure formings of C
The B rises in advance after forming, further pressurizes, by the passive hydraulic structure of hydroforming, in the pipe of the supervisor 1
Ring wave shapes the wave structure with it；
D edgings
Two tip cut-off excess stocks of workpiece after forming make the supervisor 1 concordant at the port of looped pipeline 2.
E double-layer structure bendings
Referring to Fig. 4, one embodiment of the invention；According to the difference of service condition, supervisor 1 ties with the bilayer that looped pipeline 2 is formed
Structure can be that straight tube may be bend pipe.This process according to require by the shape and size bending of the double-layer structure to require
In the range of.
Referring to Fig. 5, the bend pipe is also double-layer structure, and internal layer is supervisor 1, and outer layer is looped pipeline 2；
By more than process, it can be seen that, the present invention is integrally formed instead of traditional handicraft side using hydraulic pressure using manufacturing process
Method；Rejection rate is low, simple for process and significantly reduce cost.
Since the present invention is using supervisor 1 and the socket of looped pipeline 2 and hydroforming, instead of the welding sequence of traditional handicraft, because
The fatigue strength of this total has significant raising.The internal layer of double-layer structure of the present invention and wave structure are by master simultaneously
Pipe 1 is formed, and concordant at port；Therefore also avoid permeability, oil leak appearance.
The present invention needs to be connected with other parts in practical use.It is preferred, therefore, that the port of the present invention
Place is respectively equipped with boss connection structure 3 and flange 4；Referring to Fig. 4.
The boss connection structure 3 shapes in the same process with the wave structure；That is, in the C by hydrodynamic pressure
During structure formation, the double-layer structure of port section forms the boss connection structure 3；
Therefore, the boss connection structure 3 is also double-layer structure, and internal layer is supervisor 1, and outer layer is looped pipeline 2；Referring to Fig. 6.
The flange 4 uses soldering connection with the port.
Preferably, during the wave structure shapes, peak regions C subtracts the present invention after being plastically deformed
It is thin, i.e., herein thickness be less than supervisor 1 thickness；Thinned peak regions C reduces the rigidity of wave structure so that the present invention
It is applicable to and axial displacement is required in higher operating mode.
The thickness of the supervisor 1 of the present invention is not more than 1mm；The thickness of looped pipeline 2 is 1~3mm；
Preferably, the thickness of the supervisor 1 of the invention is 0.3mm, 0.5mm or 0.8mm；The thickness of looped pipeline 2 is：
1.2mm, 1.5mm, 2mm or 2.5mm.No more than 0.3mm, the thickness of looped pipeline 2 is not more than the thickness of preferred supervisor 1 of the invention
1.2mm；Therefore the double-layer structure is not more than 1.5mm.
Preferably, the material of the supervisor 1 of the invention and looped pipeline 2 is stainless steel 304.
Referring to Fig. 9, it is preferred that be all connected with flange 4 at the port of the invention.
Preferably, the connectors such as Pa type joints can also be connected at the port of the invention.
In conclusion the present invention is by being responsible for both ends socket looped pipeline and then forming double-deck knot using the integrally formed method of hydraulic pressure
Structure, and formed on supervisor's pipe shaft using passive hydraulic structure and boss connection is formed at wave structure and port at both ends
Structure；Instead of the welding sequence in traditional handicraft, fatigue strength is significantly improved；Also permeability, oil leak are solved the problems, such as.Into
The thinning rigidity reduced herein in the peak regions of wave structure during shape so that the present invention is applicable to axial position
Shifting is required in higher operating mode.
Certainly, the present invention can also have other various embodiments, without deviating from the spirit and substance of the present invention, ripe
It knows those skilled in the art and makes various corresponding changes and deformation, but these corresponding changes and change in accordance with the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (10)
1. a kind of non-uniform thickness hydroforming flexible composite pipe, which is characterized in that including being responsible for and being socketed in the supervisor respectively
The looped pipeline at both ends；The pipe shaft forming wave structure of the supervisor；
The supervisor and the socket part of looped pipeline fit closely to form double-layer structure；The supervisor is concordant at the port of looped pipeline.
2. non-uniform thickness hydroforming flexible composite pipe according to claim 1, which is characterized in that the shape of the double-layer structure
Shape is straight or bending.
3. non-uniform thickness hydroforming flexible composite pipe according to claim 1, which is characterized in that at a side ports
The integrally formed boss connection structure of double-layer structure, another side ports connecting flange or Pa type joints.
4. non-uniform thickness hydroforming flexible composite pipe according to claim 1, which is characterized in that connection method at the port
Blue or Pa type joints.
5. non-uniform thickness hydroforming flexible composite pipe according to claim 1, which is characterized in that the supervisor and looped pipeline
Material is stainless steel 304.
6. non-uniform thickness hydroforming flexible composite pipe according to claim 1, which is characterized in that the thickness of the double-layer structure
Degree is no more than 1.5mm.
7. non-uniform thickness hydroforming flexible composite pipe according to claim 1, which is characterized in that the thickness of the supervisor is not
More than 1mm, the thickness of the looped pipeline is 1~3mm.
8. non-uniform thickness hydroforming flexible composite pipe according to claim 7, which is characterized in that the thickness of the supervisor is
0.3mm, 0.5mm or 0.8mm；The thickness of the looped pipeline is：1.2mm, 1.5mm, 2mm or 2.5mm.
9. non-uniform thickness hydroforming flexible composite pipe according to claim 1, which is characterized in that the wave structure
The thickness of each peak regions is less than the thickness of the supervisor.
10. according to non-uniform thickness hydroforming flexible composite pipe as described in any one of claim 1 to 9, which is characterized in that described
Flexible composite pipe uses the integrally formed process forming of hydraulic pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711496013.2A CN108150737A (en) | 2017-12-31 | 2017-12-31 | A kind of non-uniform thickness hydroforming flexible composite pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711496013.2A CN108150737A (en) | 2017-12-31 | 2017-12-31 | A kind of non-uniform thickness hydroforming flexible composite pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108150737A true CN108150737A (en) | 2018-06-12 |
Family
ID=62460590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711496013.2A Withdrawn CN108150737A (en) | 2017-12-31 | 2017-12-31 | A kind of non-uniform thickness hydroforming flexible composite pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150737A (en) |
-
2017
- 2017-12-31 CN CN201711496013.2A patent/CN108150737A/en not_active Withdrawn
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180612 |