CN106734666A - A kind of marmem pipe joint rigidity expander with interior muscle - Google Patents
A kind of marmem pipe joint rigidity expander with interior muscle Download PDFInfo
- Publication number
- CN106734666A CN106734666A CN201610997888.XA CN201610997888A CN106734666A CN 106734666 A CN106734666 A CN 106734666A CN 201610997888 A CN201610997888 A CN 201610997888A CN 106734666 A CN106734666 A CN 106734666A
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- China
- Prior art keywords
- pipe joint
- radial direction
- hole expansion
- expander
- muscle
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Classifications
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- 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
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/08—Tube expanders
-
- 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
- B21D37/00—Tools as parts of machines covered by this subclass
- B21D37/10—Die sets; Pillar guides
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Automatic Assembly (AREA)
Abstract
The present invention relates to a kind of marmem pipe joint rigidity expander with interior muscle.Including conical indenter, radial direction hole expansion die, marmem pipe joint and the part of limited block four.To realize overall, the uniform expanding deformation with interior muscle pipe joint and not injuring in the installation and removal of radial direction hole expansion die the interior muscle of pipe joint, the radial direction hole expansion die is designed as combined type, is combined by 7 1/8 modules, 1 trapezoidal module and 1 parallel modules.To realize not injuring interior muscle in expanding deformation process with interior muscle pipe joint, the radial direction hole expansion die outer wall processes groove.Compared with prior art; there is the present invention muscle in protection marmem pipe joint to preserve from; pipe joint radial deformation is uniform; expander is simple; mould is easy to process; it is with low cost, it is expanding before install and it is expanding after dismounting it is convenient, be adapted to all kinds marmem pipe joint it is expanding the advantages of.
Description
Technical field
The present invention relates to the expanding technology of marmem pipe joint, particularly a kind of marmem pipe with interior muscle
Joint rigidity expander.
Background technology
Airplane hydraulic pressure, pneumatic, fuel system Conventional attachment methods are mainly enlarging connected mode, and this is a kind of most extensive
And the type of attachment of maturation.However, this connected mode quality weight, complex structure, when being particularly connected with important load-carrying construction,
Larger to structural static strength and Fatigue Strength Effect, complex process, reliability and security are relatively poor.At present, the world is advanced
The aircraft manufacturing widely used marmem pipe joint of country without enlarging connected mode, the neck such as China's Aeronautics and Astronautics, nuclear power
Domain is also had started to using marmem pipe joint without enlarging connected mode.The pipeline connecting mode of this superior performance, tool
Have not easy to leak, the features such as lightweight, installing space is small, now widely used flared type connection is replaced with it, can substantially increase
The reliability and security of strong aircraft system.To the expanding mode of marmem pipe joint of muscle in band in currently practical production
The expanding bar of rigidity diameter enlarging method by force, the diameter enlarging method is generally used to be produced to influential point of tendons in marmem pipe joint very serious
Injury, and it is expanding deformation it is uneven, this can have a strong impact on marmem pipe joint restoring force and pipeline connecting parts
Sealing property.Patent《Marmem pipe joint expander based on liquid medium》（The patent No.：ZL
201210073520.6）A kind of expanding mode of hydraulic pressure is described, the expander is complicated, operation inconvenience, expanding amount is difficult to accurately
Control, pipe joint both ends of the surface are also easy to produce injury because of linear contact lay.Patent《A kind of marmem pipe joint expander》（Patent
Number：ZL 201320553854.3）With《A kind of radial expansion pipe expanding for marmem pipe joint》（The patent No.：ZL
201310403082.X）Expanding, the expanding side is carried out to band muscle marmem pipe joint by the way of radial expansion pipe
Method can obtain uniform expanding deformation, and muscle in pipe joint can be shielded, but it is difficult to obtain larger expanding amount, and
The pipe joint smaller for internal diameter, this radial expansion pipe based on both ends open groove there will be installation and removal difficulty
Greatly, in-convenience in use waiting deficiency.Therefore, it is necessary to design a kind of installation, convenient disassembly, expanding deformation is uniform, and to shape
Muscle plays the rigid expander of good protection in pipe joint of memory alloy.
The content of the invention
It is an object of the invention to provide one kind with interior muscle marmem pipe joint rigidity expander.It has peace
Assembly and disassembly are convenient, and expanding deformation is uniform, expanding amount controllable precise, and marmem pipe joint can be protected to pacify in mould
The features such as interior muscle not being injured in dress, expanding and unloading process.
In order to achieve the above object, the present invention is achieved like this：It is a kind of firm with interior muscle marmem pipe joint
Property expander, it include conical indenter, radial direction hole expansion die, marmem pipe joint and limited block；It is characterized in that：
The radial direction hole expansion die by circumferential array multiple block combiners；The marmem pipe joint is provided with interior muscle,
The modules of radial direction hole expansion die are installed successively in the marmem pipe joint with interior muscle（5~13）；Limited block is placed in footpath
To hole expansion die bottom；Conical indenter is provided with the radial direction hole expansion die of limited block upper end, by conical indenter in radial direction reaming
Move downward to realize that marmem pipe joint is complete, overall, equably expanding in mould；After expanding end, according to peace
Reverse order during dress dismantles the modules of radial direction hole expansion die successively（13~5）.
The present invention ensures the peace in radial direction hole expansion die in order that uniformly expanding with interior muscle marmem pipe joint
The interior muscle of pipe joint will not be hurt during assembly and disassembly, above-mentioned radial direction hole expansion die is further set：Radial direction reaming mould
Tool includes 7 1/8 modules of radial direction expander die, 1 trapezoidal module and 1 parallel modules, wherein, latter two module is closed one
Rise equivalent to 1 1/8 module, why this 1/8 decomposition module into 1 trapezoidal module and 1 parallel modules, its effect
Exactly in order to ensure the interior muscle of pipe joint will not be injured when radial direction hole expansion die is mounted and dismounted, in order to achieve this, need to press
Mount and dismount the modules of radial direction hole expansion die successively according to said sequence, wherein, parallel modules play a key effect, because
When finally installing and dismantle at first, parallel modules do not have activity space circumferential, now using " parallel " shape of parallel modules
Feature, effectively can smoothly realize installation and removal, and avoid to pipe joint using the radial space of radial direction hole expansion die endoporus
Interior muscle produces injury.
The present invention is in order that the marmem pipe joint with interior muscle is when expanding, it is to avoid marmem pipe joint
Interior muscle is injured by radial direction hole expansion die, and above-mentioned radial direction hole expansion die is further set：In described radial direction reaming
Outer mold wall is provided with the annular groove matched with muscle in marmem pipe joint.
The present invention reaches expected expanding amount, to upper in order that the marmem pipe joint with interior muscle is when expanding
Expanding scheme is stated further to be set：A limited block is placed in radial direction hole expansion die, the height of limited block is according to expanding
The size of amount determines, for controlling the conical indenter amount of moving down, to reach the purpose of the expanding amount of precise control.
The solution have the advantages that：Expander is simple, compact, install, expanding and disassembling section is easy and will not hinder
Muscle in evil, has protective effect to muscle in marmem pipe joint, and expanding deformation is uniform, expanding amount controllable precise.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is the schematic top plan view of radial direction hole expansion die in Fig. 1.
Fig. 3 is the schematic side view of radial direction hole expansion die in Fig. 1
Fig. 4 is the structural representation of marmem pipe joint in Fig. 1.
In figure, 1, conical indenter 2, radial direction expander die 3, marmem pipe joint 4, limited block 5 ~
11st, 1/8 module 12 of radial direction expander die, the trapezoidal module 13 of radial direction expander die, the parallel mould of radial direction expander die
Muscle in block 14, radial direction expander die outer wall annular groove 15, marmem pipe joint.
Specific embodiment
Specific implementation process of the present invention is described further below in conjunction with the accompanying drawings.
With reference to shown in Fig. 1, one kind of the present invention includes with interior muscle marmem pipe joint rigidity expander
Conical indenter 1, radial direction hole expansion die 2, marmem pipe joint 3 and limited block 4.
With reference to shown in Fig. 2, radial direction hole expansion die 2 includes 7 1/8 modules, 5 ~ 11, the 1 trapezoidal module for circumferentially arranging
12 and 1 parallel modules 13, wherein parallel modules 13 are to ensure that each module of radial direction hole expansion die 2 is not hindered in installation and removal
The key of muscle in evil pipe joint.
With reference to shown in Fig. 3, in order to protect the interior muscle 15 of marmem pipe joint 3 not injured in expanding deformation process
Evil, in the described outer wall of radial direction hole expansion die 2 correspondence processing annular groove 14.
The use of apparatus of the present invention is divided into three phases：I.e. erection stage, the expanding stage and dismounting the stage
Erection stage：As shown in Fig. 1 ~ Fig. 4, the present invention in band muscle marmem pipe joint carry out it is expanding before, first
7 1/8 modules 5 ~ 11, trapezoidal modules 12 of radial direction hole expansion die 2 are installed successively in band in muscle marmem pipe joint 3
With parallel modules 13.To ensure that each module produces injury in installation process without impinging on muscle in pipe joint, each module is installed
When inserted by the center of pipe joint bottom, then radially outwardly move, make the annular groove 14 of module with muscle in pipe joint
15 coordinate assembling, wherein, the parallel modules 13 finally installed are to ensure that in the case where interior muscle is not injured smoothly realizes what is installed
Key, because now module（5~12）It has been installed that, circumferential without redundant space, " parallel " shape of parallel modules 13 is special
Point, can make full use of the radial space of radial direction hole expansion die endoporus to complete the installation of this last module 13, i.e., by pipe joint
Bottom centre position inserts parallel modules 13, then radially promotes parallel modules 13 into " putting down between module 5 and module 12
OK " space, and the annular groove 14 of parallel modules 13 and muscle 15 in pipe joint is coordinated assembling.Radial direction hole expansion die modules
After installing, limited block 4 is placed in the bottom of radial direction hole expansion die 2, conical indenter 1 is finally placed in radial direction hole expansion die 2.
The expanding stage：Apply external force P by the top of conical indenter 1, it is moved downward in radial direction hole expansion die 2,
Now, the modules of radial direction hole expansion die（5~13）It is radially movable, so that the marmem pipe joint 3 with interior muscle
Radial deformation is produced, untill conical indenter 1 encounters limited block 4.Connect this completes muscle marmem pipe in band
First 3 complete, overall, uniform expanding deformation, and expected expanding amount is implemented exactly.
The dismounting stage：After expanding end, conical indenter 1, limited block 4 and radial direction hole expansion die 2 are taken out successively.Wherein, it is
Ensure to smoothly complete dismounting in the case where interior muscle is not injured, the order of the modules of dismounting radial direction hole expansion die 2 will be with peace
Order during dress is opposite, i.e. first dismantles parallel modules 13, then dismantles trapezoidal module 12, and 7 1/8 modules are finally dismantled successively
11~5.The parallel modules 13 dismantled at first are to ensure that the key that dismounting is smoothly realized in the case where interior muscle is not injured, because this
When parallel modules 13 it is circumferential without excess movement space, at this moment need using " parallel " design feature of parallel modules 13, in the module
Apply external force F at flange in the bottom（See Fig. 2）, make centre bore direction of the parallel modules 13 to hole expansion die 2（I.e. radially）It is mobile
One segment distance, the displacement is greater than the height of muscle in pipe joint, parallel modules 13 is moved down vertically, from pipe
Joint bottom removes the module.After parallel modules 13 are dismantled, remaining modules have vacateed activity space because circumferential, thus can
Easily remaining module is dismantled successively according to the method similar to dismounting parallel modules 13（12~5）.
This completes an expanding process with interior muscle marmem pipe joint 3.
Claims (5)
1. with interior muscle marmem pipe joint rigidity expander, it includes conical indenter, radial direction hole expansion die, shape to one kind
Shape memory alloys pipe joint and limited block；It is characterized in that：The radial direction hole expansion die by circumferential array multiple block combiners；
The marmem pipe joint is provided with interior muscle, is installed successively in the marmem pipe joint of muscle in the band and radially expanded
The modules of punch die；Limited block is placed in radial direction hole expansion die bottom；Cone is provided with the radial direction hole expansion die of limited block upper end
Shape pressure head.
2. according to claim 1 a kind of with interior muscle marmem pipe joint rigidity expander, it is characterised in that：
The radial direction hole expansion die includes 7 1/8 modules of radial direction expander die, 1 trapezoidal module and 1 parallel modules.
3. according to claim 2 a kind of with interior muscle marmem pipe joint rigidity expander, it is characterised in that：
In dismounting, parallel modules are for last installation and dismantle at first.
4. according to claim 1 a kind of with interior muscle marmem pipe joint rigidity expander, it is characterised in that：
The radial direction hole expansion die outer wall is provided with the annular groove matched with muscle in marmem pipe joint.
5. according to claim 1 a kind of with interior muscle marmem pipe joint rigidity expander, it is characterised in that：
The height of the limited block determines according to the size of expanding amount.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997888.XA CN106734666B (en) | 2016-11-14 | 2016-11-14 | The marmem pipe joint rigidity expander of muscle in a kind of band |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610997888.XA CN106734666B (en) | 2016-11-14 | 2016-11-14 | The marmem pipe joint rigidity expander of muscle in a kind of band |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106734666A true CN106734666A (en) | 2017-05-31 |
| CN106734666B CN106734666B (en) | 2018-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610997888.XA Active CN106734666B (en) | 2016-11-14 | 2016-11-14 | The marmem pipe joint rigidity expander of muscle in a kind of band |
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| Country | Link |
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| CN (1) | CN106734666B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246906A (en) * | 2018-04-24 | 2018-07-06 | 西北工业大学 | A kind of marmem pipe joint expander and method |
| CN108856435A (en) * | 2018-06-08 | 2018-11-23 | 哈尔滨工程大学 | Ni-Ti-based shape memory alloy pipe fitting hot spinning device for forming and processing and method |
| CN113275460A (en) * | 2021-04-09 | 2021-08-20 | 中北大学 | Rib mould in upset blank with horizontal interior muscle barrel work piece |
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| CN202398728U (en) * | 2011-12-31 | 2012-08-29 | 资兴市粤兴汽车零部件制造有限公司 | Expansion forming appliance for pipe end |
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| CN104801598A (en) * | 2015-04-23 | 2015-07-29 | 西北工业大学 | Bulging die for titanium-alloy thin-walled complicated irregular annular workpieces |
| CN105499388A (en) * | 2015-12-25 | 2016-04-20 | 中国航空工业集团公司北京航空制造工程研究所 | Split expanding type mold and method for manufacturing annular piece with ribs inside |
| CN106001289A (en) * | 2016-05-27 | 2016-10-12 | 南昌航空大学 | Opposite-extrusion diameter expanding device and method for circular pipe fitting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2011177737A (en) * | 2010-02-26 | 2011-09-15 | Mitsubishi Electric Corp | Tube expanding device |
| CN202199659U (en) * | 2011-06-29 | 2012-04-25 | 天津锐新昌轻合金股份有限公司 | Hydraulic tube expansion device for secondary plastic forming of inner cavity of motor shell |
| CN202316790U (en) * | 2011-12-01 | 2012-07-11 | 成都发动机（集团）有限公司 | Multi-layer split expansion die |
| CN202398728U (en) * | 2011-12-31 | 2012-08-29 | 资兴市粤兴汽车零部件制造有限公司 | Expansion forming appliance for pipe end |
| CN102764841A (en) * | 2012-07-19 | 2012-11-07 | 西北工业大学 | Core mold and shaping method for shaping strip annular internal reinforced rib rotary body thin-wall part |
| US8511133B1 (en) * | 2012-11-27 | 2013-08-20 | Jun Fan Chen | Expander for tubular elements |
| CN103433396A (en) * | 2013-09-03 | 2013-12-11 | 西安胜智航空科技有限公司 | Radial stretching expanding pipe for expanding shape memory alloy pipe joint |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246906A (en) * | 2018-04-24 | 2018-07-06 | 西北工业大学 | A kind of marmem pipe joint expander and method |
| CN108246906B (en) * | 2018-04-24 | 2022-03-11 | 西北工业大学 | Shape memory alloy pipe joint expanding device and method |
| CN108856435A (en) * | 2018-06-08 | 2018-11-23 | 哈尔滨工程大学 | Ni-Ti-based shape memory alloy pipe fitting hot spinning device for forming and processing and method |
| CN113275460A (en) * | 2021-04-09 | 2021-08-20 | 中北大学 | Rib mould in upset blank with horizontal interior muscle barrel work piece |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106734666B (en) | 2018-08-24 |
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