CN106734666B - The marmem pipe joint rigidity expander of muscle in a kind of band - Google Patents
The marmem pipe joint rigidity expander of muscle in a kind of band Download PDFInfo
- Publication number
- CN106734666B CN106734666B CN201610997888.XA CN201610997888A CN106734666B CN 106734666 B CN106734666 B CN 106734666B CN 201610997888 A CN201610997888 A CN 201610997888A CN 106734666 B CN106734666 B CN 106734666B
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- Prior art keywords
- muscle
- pipe joint
- expander
- radial
- expander die
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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 expanders of muscle in band.Including conical indenter, radial expander die, four part of marmem pipe joint and limited block.To realize whole, the uniform expanding interior muscle deformed and do not injure pipe fitting in the installation and removal of radial expander die with interior muscle pipe fitting, the radial direction expander die is designed as combined type, is composed of 7 1/8 modules, 1 trapezoidal module and 1 parallel modules.Interior muscle is not injured in expanding deformation process with interior muscle pipe fitting, the radial direction expander die outer wall processes groove to realize.Compared with prior art; there is the present invention muscle in protection marmem pipe joint to preserve from; pipe fitting radial deformation is uniform; expander is simple; mold is easy to process; of low cost, dismounting is convenient after installing before expanding and is expanding, is adapted to the advantages that various types marmem pipe joint is expanding.
Description
Technical field
The present invention relates to the expanding technology of marmem pipe joint, the marmem pipe of muscle in especially a kind of band
Joint rigidity expander.
Background technology
Airplane hydraulic pressure, pneumatic, fuel system Conventional attachment methods are predominantly flared connection type, this is a kind of most extensive
And ripe type of attachment.However, this connection type quality is heavy, complicated, when especially being connect with important load-carrying construction,
Larger to structural static strength and Fatigue Strength Effect, complex process, reliability and safety are relatively poor.Currently, the world is advanced
The aircraft manufacturing country flareless connection type of widely used marmem pipe joint, the necks such as China's Aeronautics and Astronautics, nuclear power
Domain has also started to use the flareless connection type of marmem pipe joint.The pipeline connecting mode of this superior performance, tool
Have not easy to leak, it is light-weight, installation space is small the features such as, replace now widely used flared type connection with it, can obviously increase
The reliability of strong aircraft system and safety.To the expanding mode of the marmem pipe joint with interior muscle in currently practical production
Rigidly diameter enlarging method, the diameter enlarging method generate influential point of tendons in marmem pipe joint very serious expanding bar generally use by force
Injury, and it is expanding deformation it is uneven, this can seriously affect marmem pipe joint restoring force and pipeline connecting parts
Sealing performance.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, and inconvenient, expanding amount is difficult to accurately
Control, pipe fitting both ends of the surface are also easy to produce injury because of line contact.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, can shield to muscle in pipe fitting, but it is difficult to obtain larger expanding amount, and
For the smaller pipe fitting of internal diameter, this based on the radial expansion pipe of both ends open straight slot, there will be installation and removal difficulty
Greatly, the deficiencies of inconvenient to use.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.
Invention content
The purpose of the present invention is to provide muscle marmem pipe joint rigidity expanders in a kind of band.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 mold
Not the features such as interior muscle not being injured in dress, expanding and disassembly process.
In order to achieve the above object, the present invention is achieved like this：Muscle marmem pipe joint is rigid in a kind of band
Property expander, it includes conical indenter, radial expander die, marmem pipe joint and limited block；It is characterized in that：
It is described radial direction expander die by circumferential array multiple block combiners；The marmem pipe joint is equipped with interior muscle,
The modules of radial expander die are installed successively in the marmem pipe joint with interior muscle（5~13）；Limited block is placed in diameter
To expander die bottom；Conical indenter is equipped in the radial direction expander die of limited block upper end, by conical indenter radial expanding
It is moved downward in mold to realize that marmem pipe joint is complete, whole, equably expanding；After expanding, according to peace
Reverse order when dress dismantles the modules of radial expander die successively（13~5）.
The present invention is uniformly expanding with interior muscle marmem pipe joint in order to make, and ensures the peace in radial expander die
Above-mentioned radial expander die is further arranged in the interior muscle that pipe fitting will not be hurt when assembly and disassembly：Radial expander die
Tool includes 1/8 module, 1 trapezoidal module and 1 parallel modules of 7 radial expander dies, wherein latter two module is closed one
Rise and be equivalent to 1 1/8 module, why this 1/8 decomposition module at 1 trapezoidal module and 1 parallel modules, effect
Exactly in order to ensure the interior muscle of pipe fitting will not be injured in the radial expander die of installation and removal, in order to achieve this, need to press
Mount and dismount the modules of radial expander die successively according to said sequence, wherein parallel modules play a key effect, because
With when dismantling at first, parallel modules are not having activity space circumferentially, utilize " parallel " shape of parallel modules at this time for finally installation
Feature, the radial space that can efficiently use radial expander die endoporus smoothly realizes installation and removal, and avoids to pipe fitting
Interior muscle generates injury.
The present invention is in order to make the marmem pipe joint with interior muscle avoid marmem pipe joint when expanding
Interior muscle is injured by radial expander die, and above-mentioned radial expander die is further arranged：It is expanding in the radial direction
Outer mold wall is equipped with the annular groove to match with muscle in marmem pipe joint.
The present invention reaches expected expanding amount, to upper to make the marmem pipe joint with interior muscle when expanding
Expanding scheme is stated further to be arranged：A limited block is placed in radial expander 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 achieve the purpose that accurately control expanding amount.
The solution have the advantages that：Expander is simple, small and exquisite, and installation, 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.
Description of the drawings
Fig. 1 is the structural schematic diagram of apparatus of the present invention.
Fig. 2 is the schematic top plan view of radial expander die in Fig. 1.
Fig. 3 is the schematic side view of radial expander die in Fig. 1
Fig. 4 is the structural schematic diagram of marmem pipe joint in Fig. 1.
In the figure 1, conical indenter 2, radial expander die 3, marmem pipe joint 4, limited block 5 ~ 11,
1/8 module 12 of radial expander die, the trapezoidal module 13 of radial expander die, radial expander die parallel modules 14,
Muscle in radial expander die outer wall annular groove 15, marmem pipe joint.
Specific implementation mode
Specific implementation process of the present invention is described further below in conjunction with the accompanying drawings.
In conjunction with shown in Fig. 1, muscle marmem pipe joint rigidity expander includes in a kind of band of the present invention
Conical indenter 1, radial expander die 2, marmem pipe joint 3 and limited block 4.
In conjunction with shown in Fig. 2, radial expander die 2 includes 7 1/8 modules, 5 ~ 11, the 1 trapezoidal module circumferentially arranged
12 and 1 parallel modules 13, wherein parallel modules 13 are to ensure that each module of radial expander die 2 is not hindered in installation and removal
The key of muscle in evil pipe fitting.
In conjunction with shown in Fig. 3, in order to protect the interior muscle 15 of marmem pipe joint 3 not injured in expanding deformation process
Evil corresponds to processing annular groove 14 in 2 outer wall of radial expander die.
The use of apparatus of the present invention is divided into three phases：That is erection stage, expanding stage and dismounting stage
Erection stage：As shown in Fig. 1 ~ Fig. 4, the present invention to interior muscle marmem pipe joint carry out it is expanding before,
7 1/8 modules 5 ~ 11, trapezoidal moulds of radial expander die 2 are installed successively first in interior muscle marmem pipe joint 3
Block 12 and parallel modules 13.To ensure that each module generates injury, each module without impinging on muscle in pipe fitting during the installation process
It is placed in by the center of pipe fitting bottom when installation, then radially outwardly moves, make the annular groove 14 and pipe fitting of module
The cooperation assembling of interior muscle 15, wherein the parallel modules 13 finally installed, which are to ensure that, smoothly realizes peace in the case where not injuring interior muscle
The key of dress, because of module at this time（5~12）It has been installed that, it is circumferential without redundant space, " parallel " shape of parallel modules 13
Feature can make full use of the radial space of radial expander die endoporus to complete the installation of this last module 13, i.e., be connect by pipe
Head bottom centre position is placed in parallel modules 13, then radially parallel modules 13 is pushed to enter between module 5 and module 12
" parallel " space, and the annular groove 14 of parallel modules 13 is made to be assembled with the cooperation of muscle 15 in pipe fitting.Radial expander die is each
After module installs, limited block 4 is placed in the bottom of radial expander die 2, taper pressure is finally placed in radial expander die 2
First 1.
The expanding stage：By in 1 top of conical indenter application external force P, it being made to be moved downward in radial expander die 2,
At this point, the modules of radial expander die（5~13）It is radially movable, to make the marmem pipe joint 3 with interior muscle
Radial deformation is generated, until conical indenter 1 encounters limited block 4.This completes connect with interior muscle marmem pipe
First 3 complete, whole, uniform expanding deformation, and expected expanding amount is implemented exactly.
The dismounting stage：After expanding, conical indenter 1, limited block 4 and radial expander die 2 are taken out successively.Wherein, it is
Ensure to smoothly complete dismounting in the case where not injuring interior muscle, the sequence for dismantling 2 modules of radial expander die will be with peace
Sequence when dress is opposite, that is, first dismantles parallel modules 13, then dismantles trapezoidal module 12, finally dismantles 7 1/8 modules 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 not injuring interior muscle, because thus
When parallel modules 13 it is circumferential without excess movement space, " parallel " design feature using parallel modules 13 is at this moment needed, 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
A distance, the displacement distance are greater than the height of muscle in pipe fitting, and parallel modules 13 is then made to move down in an axial direction, from pipe
Connector 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 processes with interior muscle marmem pipe joint 3.
Claims (4)
1. muscle marmem pipe joint rigidity expander in a kind of band, it includes conical indenter, radial expander die, shape
Shape memory alloys pipe fitting and limited block；It is characterized in that：It is described radial direction expander die by circumferential array multiple block combiners；
The marmem pipe joint is equipped with interior muscle, and installation is radial successively in the marmem pipe joint with interior muscle expands
The modules of diameter mold；Limited block is placed in radial expander die bottom；Cone is equipped in the radial direction expander die of limited block upper end
Shape pressure head；The radial direction expander die is hollow mould, and the endoporus of the radial direction expander die is and the conical indenter taper
The outer wall of the cone-shaped inner hole to match, the radial direction expander die is cylindrical outer wall, and the bottom end of the radial direction expander die is set
Have a flange arrangement, the center bore inner wall of the flange arrangement is conical central hole inner wall, the conical central hole inner wall with it is described
The taper of cone-shaped inner hole is identical, and the minimum diameter phase of the maximum inner diameter of the conical central hole inner wall and the cone-shaped inner hole
Together, the flange arrangement is integrally formed with the radial expander die；The radial direction expander die includes 7 radial expander dies
1/8 module, 1 trapezoidal module and 1 parallel modules, 1 trapezoidal module and 1 parallel modules form the 8th
1/8 module.
2. muscle marmem pipe joint rigidity expander in a kind of band according to claim 1, it is characterised in that：
In dismounting, parallel modules are last installation and dismantle at first.
3. muscle marmem pipe joint rigidity expander in a kind of band according to claim 1, it is characterised in that：
The radial direction expander die outer wall is equipped with the annular groove to match with muscle in marmem pipe joint.
4. muscle marmem pipe joint rigidity expander in a kind of band according to claim 1, it is characterised in that：
The height of the limited block is determined 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 CN106734666A (en) | 2017-05-31 |
| CN106734666B true CN106734666B (en) | 2018-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108246906B (en) * | 2018-04-24 | 2022-03-11 | 西北工业大学 | Shape memory alloy pipe joint expanding device and method |
| CN108856435B (en) * | 2018-06-08 | 2020-05-15 | 哈尔滨工程大学 | Hot spinning forming device and method for nickel titanium based shape memory alloy pipe joint |
| CN113275460B (en) * | 2021-04-09 | 2022-09-06 | 中北大学 | Rib mould in upset blank with horizontal interior muscle barrel work piece |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102764841B (en) * | 2012-07-19 | 2014-05-14 | 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 |
| CN103433396B (en) * | 2013-09-03 | 2015-09-09 | 西安胜智航空科技有限公司 | A kind of radial expansion expander expanding for marmem pipe joint |
| CN104801598B (en) * | 2015-04-23 | 2016-09-07 | 西北工业大学 | A kind of titanium alloy thin wall Complex Different Shape annular workpieces expanding die |
| CN105499388B (en) * | 2015-12-25 | 2018-05-25 | 中国航空工业集团公司北京航空制造工程研究所 | Divide the method for the swollen pattern tool of valve and the internal annular element with muscle of manufacture |
| 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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| CN106734666A (en) | 2017-05-31 |
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