CN106216537B - A kind of marmem reduction nipple expander - Google Patents
A kind of marmem reduction nipple expander Download PDFInfo
- Publication number
- CN106216537B CN106216537B CN201610864938.7A CN201610864938A CN106216537B CN 106216537 B CN106216537 B CN 106216537B CN 201610864938 A CN201610864938 A CN 201610864938A CN 106216537 B CN106216537 B CN 106216537B
- Authority
- CN
- China
- Prior art keywords
- expanding
- pilot hole
- diameter
- compression bar
- reduction nipple
- 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.)
- Expired - Fee Related
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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
- 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
- B21D39/20—Tube expanders with mandrels, e.g. expandable
-
- 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
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
- B21D39/046—Connecting tubes to tube-like fittings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
Abstract
The invention discloses a kind of marmem reduction nipple expander, including：Pedestal, guideway, expanding compression bar and expanding piece of split-type；Pedestal upper end is preset with the axle sleeve pilot hole of Longitudinal extending；Guideway is assemblied in axle sleeve pilot hole；Guideway center is machined with the push rod pilot hole of Longitudinal extending；Expanding compression bar is the reducing cylinder body of rod, and lower part is processed as the less guide section of diameter, and middle part transition portion is processed as tapered reaming section, and tapered reaming section top is processed as the maintaining segment being relatively large in diameter, and maintaining segment top is processed as diameter and unloads set section less than maintaining segment；Expanding piece of split-type is the secter pat of average mark cyclotomy ring, and dividing number is more than or equal to 2；Expanding piece of split-type is embedded in marmem reduction nipple large diameter portion；The present invention, realizes that entirety is expanding by gradual expanding piece of the split-type for promoting tapered reaming section and maintaining segment to act on successively inside marmem reduction nipple path part and large diameter portion that pushes of expanding compression bar.
Description
Technical field
The present invention relates to machinery expanding device, more particularly to a kind of marmem reduction nipple expander.
Background technology
Marmem is a kind of Metallic Functional Materials with shape memory effect, and pipe fitting is that it is applied successfully in it
One.
The pipeline of two different-diameters can be attached by marmem reduction nipple, this connection mode area
Not in traditional electric welding and threaded connection.Marmem reduction nipple is formed by stacking for two cylindrical sleeves, including small
End and big end, are machined, its internal diameter is more smaller than connected piece outside diameter under parent phase state.In application, by shape memory
Alloy reduction nipple is cooled to martensitic state, expanding to reduction nipple with mechanical force, make it is expanding after reduction nipple
Small end is more slightly larger than connected tube outside diameter with big end internal diameter.Connected tube and reduction nipple are assembled together under low-temperature condition,
The marmem reduction nipple assembled is integrally heated to a certain temperature again, makes marmem reduction nipple
Undergoing phase transition, its internal diameter size returns to the size before deformation because of shape memory effect, but during shape is recovered
Restraining force is produced to it due to being limited be subject to connected tube, so that two pipelines are tightly coupled to together.
Marmem reduction nipple has that connection is reliable, Joining Technology is simple, pipe fitting is small, corrosion-resistant etc.
Advantage.The design of marmem reduction nipple at present has no at present with expanding.
The content of the invention
The present invention is directed to above-mentioned technical problem, proposes a kind of marmem reduction nipple expander.
To achieve the above objectives, it is achieved through the following technical solutions：
A kind of marmem reduction nipple expander, including：Pedestal, guideway, expanding compression bar and divide valve
Expanding piece of formula；
Pedestal upper end is preset with the axle sleeve pilot hole of Longitudinal extending；
Guideway is assemblied in axle sleeve pilot hole, and guideway height and axle sleeve pilot hole deep equality；
Expanding compression bar is the reducing cylinder body of rod, and its underpart is processed as the less guide section of diameter, the processing of middle part transition portion
For tapered reaming section, tapered reaming section top is processed as the maintaining segment being relatively large in diameter, and maintaining segment top is processed as diameter and is less than guarantor
That holds section unloads set section；
Guideway center is machined with the push rod pilot hole of Longitudinal extending, under wherein push rod pilot hole is more than for top aperture
The shoulder hole structure in portion aperture, large aperture section diameter be more than or equal to expanding compression bar maintaining segment diameter, aperture path portion with
Macropore path portion passes through conical surface transition；
Expanding piece of split-type is the secter pat of average mark cyclotomy ring, and dividing number is more than or equal to 2；
Wherein, expanding piece of split-type is embedded in memorial alloy reduction nipple large diameter portion, is equipped with expanding piece of split-type
Memorial alloy reduction nipple be buckled on pedestal upper end, and be longitudinally coaxial placement with guideway；The guiding of expanding compression bar
Section sequentially passes through memorial alloy reduction nipple path part and memorial alloy reduction nipple with expanding piece of split-type is big
Path portion, is finally inserted into the lower part path partial hole of push rod pilot hole；
Using the present invention of above-mentioned technical proposal, expanding compression bar upper end connects press machine output shaft, by under forcing press
Pressure, the guide section of compression bar expanding first can enter the lower part path part realization contraposition of push rod pilot hole and be oriented to, Ran Houjin
The tapered reaming section that one step pushes expanding compression bar can realize memorial alloy reduction nipple path part expanding, continue lower companding
The tapered reaming section of footpath compression bar acts on expanding piece of radial outward dilations of split-type and realizes to memorial alloy reduction nipple major diameter
Partial expansion, lasting push stablize expansion by maintaining segment realization, eventually arrive at and unload set section, memorial alloy reduction nipple pine
Relaxation can be pulled down.
Further, the lower part path section diameter of the push rod pilot hole of guideway is straight equal to the guide section of expanding compression bar
Footpath, it is therefore intended that ensure stable longitudinally guiding.
Further, pedestal is located at extension of the processing diameter more than or equal to expanding compression bar guide section of axle sleeve pilot hole bottom and leads
Xiang Kong, it is therefore intended that further provide for down stroke.
Further, the expanding a diameter of D of compression bar guide section0, countersinking segment length is L, and countersinking section cone angle is α,
Maintaining segment a diameter of 2Ltan (α/2)+D0。
Described above is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be practiced according to the content of specification, and in order to allow the above and other objects, features and advantages of the present invention can
Become apparent, below especially exemplified by preferred embodiment, and coordinate attached drawing, describe in detail as follows.
Brief description of the drawings
Totally 6 width attached drawing of the invention, wherein：
Fig. 1 is the expander structure diagram of the present invention；
Fig. 2 is the expanding process schematic of expander of the present invention；
Fig. 3 is the reduction nipple structure diagram of the present invention；
Fig. 4 is the pedestal schematic diagram of the present invention；
Fig. 5 is the guideway schematic diagram of the present invention；
Fig. 6 is expanding piece of schematic diagram of split-type of the present invention.
In figure：1st, reduction nipple, 1-1, memorial alloy reduction nipple large diameter portion, 1-2, memorial alloy reducer pipe connect
Head path part, 2, pedestal, 2-1, axle sleeve pilot hole, 3, guideway, 3-1, push rod pilot hole, 4, expanding compression bar, 4-1, cone
Type reaming section, 4-2, maintaining segment, 4-3, guide section, 4-4, unload set section, and 5, expanding piece of split-type.
Embodiment
A kind of marmem reduction nipple expander as shown in Figures 1 to 6, including：Pedestal 2, guiding axis
Expanding piece 5 of set 3, expanding compression bar 4 and split-type；
2 upper end of pedestal is preset with the axle sleeve pilot hole 2-1 of Longitudinal extending；
Guideway 3 is assemblied in axle sleeve pilot hole 2-1, and 3 height of guideway and axle sleeve pilot hole 2-1 depth phases
Deng；
Expanding compression bar 4 is the reducing cylinder body of rod, and its underpart is processed as the less guide section 4-3 of diameter, middle part transition portion
Tapered reaming section 4-1 is processed as, tapered reaming section 4-1 tops are processed as the maintaining segment 4-2 being relatively large in diameter, maintaining segment 4-2 tops
It is processed as diameter and unloads set section 4-4 less than maintaining segment 4-2；
3 center of guideway is machined with the push rod pilot hole 3-1 of Longitudinal extending, and wherein push rod pilot hole 3-1 is upper hole
Footpath is more than the shoulder hole structure in lower part aperture, and large aperture section diameter is more than or equal to the diameter of the maintaining segment 4-2 of expanding compression bar 4,
Aperture path portion passes through conical surface transition with macropore path portion；
Expanding piece 5 secter pat for average mark cyclotomy ring of split-type, and dividing number is more than or equal to 2；
Wherein, split-type is embedded in memorial alloy reduction nipple large diameter portion 1-1 for expanding piece 5, is equipped with split-type expansion
The memorial alloy reduction nipple 1 of footpath block 5 is buckled on 2 upper end of pedestal, and is longitudinally coaxial placement with guideway 3；Expanding pressure
The guide section 4-3 of bar 4 sequentially passes through memorial alloy reduction nipple path part 1-2 and the memory with expanding piece 5 of split-type
Alloy reduction nipple large diameter portion 1-1, is finally inserted into the lower part path partial hole of push rod pilot hole 3-1；
Further, the lower part path section diameter of the push rod pilot hole 3-1 of guideway 3 is equal to leading for expanding compression bar 4
To section 4-3 diameters, it is therefore intended that ensure stable longitudinally guiding.
Further, pedestal 2 is located at axle sleeve pilot hole 2-1 bottoms processing diameter and is more than or equal to expanding 4 guide section 4-3 of compression bar
Extension pilot hole, it is therefore intended that further provide for down stroke.
Using the present invention of above-mentioned technical proposal, this example is when expanding to marmem reduction nipple 1, first
Split-type is inserted into for expanding piece 5 in reduction nipple large diameter portion 1-1, then by guideway 3 according to compression bar pilot hole 3-1 to
Under position be installed in the axle sleeve pilot hole of pedestal 2 and 3 clearance fit of guideway, reduction nipple 1 and split-type are expanded
Footpath block 5 according to the downward requirement of big end is installed on 3 upper surface of guideway after the completion of assembling, make reduction nipple 1 axis and
The axis of guideway 3 overlaps, then expanding 4 guide section 4-3 of compression bar is passed through in reduction nipple 1 and compression bar pilot hole 3-1,
Under the action of forcing press, expanding compression bar is advanced downwardly along compression bar pilot hole 3-1, when expanding compression bar countersinking section 4-1 enters
During reduction nipple path part 1-2, the radially uniform distendings of reduction nipple path part 1-2, with expanding compression bar 4 continue to
Lower propulsion, expanding compression bar maintaining segment 4-2 carry out pipe fitting overall expanding, reduction pipe fitting elastic shrinkage, when expanding compression bar is bored
When shape reaming section 4-1 is depressed into reduction nipple large diameter portion 1-1, expanding piece of 5 radially uniform distendings of split-type, due to split-type
Expanding piece of 5 outer walls act on reduction nipple large diameter portion 1-1 inner walls, make the uniform distendings of reduction nipple large diameter portion 1-1.Expand
Footpath compression bar 4, which is stressed, to be continued to advance downwardly, and maintaining segment 4-2 enters in guideway 3 that (unloading set section 4-4, to come downwards to split-type expanding
5 part of block), 1 relaxation of marmem reduction nipple can come off from expanding compression bar 4, take out expanding piece 5 of split-type,
Complete the expanding of marmem reduction nipple 1.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, though
So the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional technology people
Member without departing from the scope of the present invention, when the technology contents using the disclosure above make it is a little change or be modified to
The equivalent embodiment of equivalent variations, as long as being the content without departing from technical solution of the present invention, the technical spirit pair according to the present invention
Any simple modification, equivalent change and modification made for any of the above embodiments, in the range of still falling within technical solution of the present invention.
Claims (3)
- A kind of 1. marmem reduction nipple expander, it is characterised in that：Including, pedestal (2), guideway (3), Expanding compression bar (4) and split-type expanding piece (5)；Pedestal (2) upper end is preset with the axle sleeve pilot hole (2-1) of Longitudinal extending；The guideway (3) is assemblied in axle sleeve pilot hole (2-1), and guideway (3) highly with axle sleeve pilot hole (2-1) Deep equality；The expanding compression bar (4) is the reducing cylinder body of rod, and its underpart is processed as the less guide section of diameter (4-3), middle part transition Part is processed as tapered reaming section (4-1), and tapered reaming section (4-1) top is processed as the maintaining segment (4-2) being relatively large in diameter, and keeps Section (4-2) top is processed as diameter and unloads set section (4-4) less than maintaining segment (4-2)；Guideway (3) center is machined with the push rod pilot hole (3-1) of Longitudinal extending, and wherein push rod pilot hole (3-1) is Top aperture is more than the shoulder hole structure in lower part aperture, and large aperture section diameter is more than or equal to the maintaining segment (4- of expanding compression bar (4) 2) diameter, aperture path portion pass through conical surface transition with macropore path portion；Expanding piece of the split-type (5) is the secter pat of average mark cyclotomy ring, and dividing number is more than or equal to 2；Wherein, split-type expanding piece (5) is embedded in memorial alloy reduction nipple large diameter portion (1-1), is equipped with split-type expansion The memorial alloy reduction nipple (1) of footpath block (5) is buckled on pedestal (2) upper end, and is put with guideway (3) to be longitudinally coaxial Put；The guide section (4-3) of expanding compression bar (4) sequentially passes through memorial alloy reduction nipple path part (1-2) and with dividing valve The memorial alloy reduction nipple large diameter portion (1-1) of expanding piece of formula (5), is finally inserted into the lower part of push rod pilot hole (3-1) In path partial hole.
- A kind of 2. marmem reduction nipple expander according to claim 1, it is characterised in that：Guiding axis The lower part path section diameter for covering the push rod pilot hole (3-1) of (3) is equal to guide section (4-3) diameter of expanding compression bar (4).
- A kind of 3. marmem reduction nipple expander according to claim 1 or 2, it is characterised in that：Institute State pedestal (2) and be located at the extension that axle sleeve pilot hole (2-1) bottom processing diameter is more than or equal to expanding compression bar (4) guide section (4-3) Pilot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610864938.7A CN106216537B (en) | 2016-09-29 | 2016-09-29 | A kind of marmem reduction nipple expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610864938.7A CN106216537B (en) | 2016-09-29 | 2016-09-29 | A kind of marmem reduction nipple expander |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106216537A CN106216537A (en) | 2016-12-14 |
| CN106216537B true CN106216537B (en) | 2018-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610864938.7A Expired - Fee Related CN106216537B (en) | 2016-09-29 | 2016-09-29 | A kind of marmem reduction nipple expander |
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| Country | Link |
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| CN (1) | CN106216537B (en) |
Families Citing this family (1)
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04100648A (en) * | 1990-08-18 | 1992-04-02 | Aiseru Kk | Device for expanding cylindrical body or annular body |
| CN102489615A (en) * | 2011-11-24 | 2012-06-13 | 贵州安大航空锻造有限责任公司 | Thermal bulging process for special-shaped high-temperature-alloy rolled ring workpieces |
| CN103433395A (en) * | 2013-09-03 | 2013-12-11 | 西安胜智航空科技有限公司 | Expanding device for shape memory alloy pipe joint |
| CN104624823A (en) * | 2013-11-14 | 2015-05-20 | 三菱电机株式会社 | Pipe expanding tool, pipe expanding method, cylinder body and compressor |
| CN205464004U (en) * | 2016-01-27 | 2016-08-17 | 施密特汽车管件(安徽)有限公司 | Pipe fitting flaring processingequipment |
-
2016
- 2016-09-29 CN CN201610864938.7A patent/CN106216537B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04100648A (en) * | 1990-08-18 | 1992-04-02 | Aiseru Kk | Device for expanding cylindrical body or annular body |
| CN102489615A (en) * | 2011-11-24 | 2012-06-13 | 贵州安大航空锻造有限责任公司 | Thermal bulging process for special-shaped high-temperature-alloy rolled ring workpieces |
| CN103433395A (en) * | 2013-09-03 | 2013-12-11 | 西安胜智航空科技有限公司 | Expanding device for shape memory alloy pipe joint |
| CN104624823A (en) * | 2013-11-14 | 2015-05-20 | 三菱电机株式会社 | Pipe expanding tool, pipe expanding method, cylinder body and compressor |
| CN205464004U (en) * | 2016-01-27 | 2016-08-17 | 施密特汽车管件(安徽)有限公司 | Pipe fitting flaring processingequipment |
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| Publication number | Publication date |
|---|---|
| CN106216537A (en) | 2016-12-14 |
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