CN106556679A - A kind of tubing reducing formation assay device and pipe end are fixed and discharge method - Google Patents
A kind of tubing reducing formation assay device and pipe end are fixed and discharge method Download PDFInfo
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- CN106556679A CN106556679A CN201611032001.XA CN201611032001A CN106556679A CN 106556679 A CN106556679 A CN 106556679A CN 201611032001 A CN201611032001 A CN 201611032001A CN 106556679 A CN106556679 A CN 106556679A
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- Prior art keywords
- tubing
- barrel
- core
- reducing formation
- cut
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
Abstract
The present invention discloses a kind of tubing reducing formation assay device and pipe end is fixed and discharge method, the device includes the barrel of both ends open, the first opening of barrel is sealedly connected with base, the second opening of barrel is installed with pressing plate, also include that one end is located in barrel, and the pressure head being flexibly connected with material tube inner wall, the pressure head other end is through pressing plate opening, outside barrel, and it is provided with the outer rim being connected with press.Pipe end is fixed and discharge method mainly includes, tubing two ends are cut vertically as multiple small pieces, and cut-away portions are folded to locate vertical with tubing bus to tubing inflection；Tubing cut-away portions are compressed with the briquetting outside tubing by the core in tubing；The tubing in barrel is taken out after the completion of undergauge experiment, and the tubing for fixing is cut along core groove, the mould processing cost of the present invention is low, simple reliable without the need for special seal device, operation, pipe end fixation, and it is quick, convenient that experiment finishes rear discharging.
Description
Technical field
The present invention relates to tubing reducing formation experimental technique field, more particularly to a kind of tubing reducing formation assay device
Fix with pipe end and discharge method.
Background technology
With part forming technology develop rapidly with it is increasingly mature, current all kinds of hi-tech industries tend to use
Lightweight, the thin-wall hollow member of high intensity, and the thin-walled hollow parts corrugation that faces and rupture destabilization problems when shaping, are mesh
The a great problem of front puzzlement Chinese scholars.When reducing formation process test research is carried out to tubing, pipe end is fixed
Constraint or offer prestressing force are one of main points that tubing reducing formation mould needs realization.
Current existing solution is for example：
①Gao iron armies, Wang Zhongjin, Deng build and understand.The impact of necking length on viscous medium outer pressure necking forming, forges and presses skill
Art, 2007,32 (5)：23-26
②Gao iron armies, Wang Zhongjin.Cylinder impact of the base diameter to viscous medium external pressure reducing formation, mould industry, 2009,35
(6)：35-37
The preformed method of external mold is employed in viscous medium forming test in above-mentioned two papers, first tubing is entered
The pre- bulging of row so as to which upper and lower end parts are embedded in external mold, so as to realize that pipe end is fixed, in discharging, by external mold dismounting need to be only
Can.
But this pipe end fixed form needs the external mold that special processing is matched with tube outer diameter, and pipe deformation segment length
Degree immobilizes, while requiring higher to the sealing property of mould, mould processing cost is greatly improved, and is not suitable for small lot, many
The formability test of specification pipe.
The content of the invention
It is an object of the invention to provide a kind of tubing reducing formation assay device and pipe end are fixed and discharge method, with
Above-mentioned prior art is solved the problems, such as, reduces mould processing cost, simple reliable without the need for special seal device, operation.
For achieving the above object, the invention provides following technical scheme：
The present invention provides a kind of tubing reducing formation engineer testing device, including the barrel of both ends open, the barrel the
One opening is sealedly connected with base, and the second opening of the barrel is installed with pressing plate；Also include pressure head, the pressure head one
End is in the barrel, and is flexibly connected with the material tube inner wall, and the other end is located at outside the barrel, and is provided with and pressure
The outer rim that equipment is connected.
Optionally, the base and the pressing plate are fixedly connected with the barrel by bolt respectively.
Optionally, the core of annular groove is also offered including briquetting and two side walls, the core is radially divided into two
Block.
The present invention also provides a kind of tubing reducing formation technique examination of utilization aforementioned tubes reducing formation engineer testing device
Test pipe end to fix and discharge method, the method step is as follows：
Step one, first places the core in tubing to be processed；Tubing two ends are cut into into small pieces, cut vertically
Divide locate vertical with the tubing bus is folded to tubing inflection；
Step 2, the core are bolted with the briquetting；Outside by the core in tubing and tubing
Tubing cut-away portions are compressed by the briquetting；
Step 3, the tubing for fixing is placed in the barrel, the briquetting at tubing two ends respectively with the base and institute
State pressing plate to be fixedly connected；Carry out undergauge experiment；
The tubing fixed in the barrel is taken out after the completion of undergauge experiment by step 4, and by the tubing edge for fixing
Core groove cuts, and tubing standing part is separated with diameter shrinkage part.
Optionally, in step 2, the core one end in the tubing is provided with pretension block, the pretension block and the pressure
Pre-loading screw is connected between block；Axial pre tightening force is applied to tubing cut-away portions by pre-loading screw.
Above-mentioned technical proposal disclosed by the invention achieves following technique effect compared with prior art：
Tubing reducing formation assay device disclosed by the invention and pipe end are fixed and discharge method combines solid
Granule medium forming technology, for the sealing of medium does not have harsh requirement, does not limit the length of pipe deformation section, by more yet
Realize that the reducing formation under the conditions of different distortion length is tested by the shaping core for changing different length, greatly reduce mould system
Make and related accessory cost, be particularly suitable for the reducing formation engineer testing of small lot, plurality of specifications pipe.
Description of the drawings
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to institute in embodiment
The accompanying drawing that needs are used is briefly described, it should be apparent that, drawings in the following description are only some enforcements of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can be with according to these accompanying drawings
Obtain other accompanying drawings；
Fig. 1 is fixed for pipe end of the present invention and discharging structure schematic diagram；
Fig. 2 is tubing reducing formation experimental provision scheme of erection of the present invention；
Description of reference numerals：1 is barrel, and 2 is base, and 3 is pressing plate, and 4 is pressure head, and 5 is outer rim, and 6 is briquetting, and 7 are annular
Groove, 8 is core, and 9 is pretension block, and 10 is pre-loading screw, and 11 is sealing member, and 12 is solid particle medium, and 13 is tubing.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than the embodiment of whole.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
It is an object of the invention to provide a kind of tubing reducing formation assay device, to solve asking for above-mentioned prior art presence
Topic, reduces mould processing cost, simple reliable without the need for special seal device, operation.
The present invention provides a kind of tubing reducing formation engineer testing device, including the barrel of both ends open, the barrel the
One opening is sealedly connected with base, and the second opening of the barrel is installed with pressing plate；Also include pressure head, the pressure head one
End is in the barrel, and is flexibly connected with the material tube inner wall, and the other end is located at outside the barrel, and is provided with and pressure
The outer rim that equipment is connected.
The present invention also provides a kind of tubing reducing formation engineer testing pipe end and fixes and discharge method, including following step
Suddenly：
Step one, first places the core in tubing to be processed；Tubing two ends are cut vertically, cut-away portions are to pipe
Material inflection is folded to locate vertical with the tubing bus；
Step 2, the core are bolted with the briquetting；Outside by the core in tubing and tubing
Tubing cut-away portions are compressed by the briquetting；
Step 3, the tubing for fixing is placed in the barrel, the briquetting at tubing two ends respectively with the base and institute
State pressing plate to be fixedly connected；Carry out undergauge experiment；
The tubing fixed in the barrel is taken out after the completion of undergauge experiment by step 4, and by the tubing edge for fixing
Core groove cuts, and tubing standing part is separated with diameter shrinkage part.
It is understandable to enable the above objects, features and advantages of the present invention to become apparent from, it is below in conjunction with the accompanying drawings and concrete real
The present invention is further detailed explanation to apply mode.
The present invention provides a kind of tubing reducing formation engineer testing device, as depicted in figs. 1 and 2, including both ends open
Barrel 1,1 first opening of the barrel are connected with base 2 by bolt seal, and 1 second opening of the barrel passes through bolt
It is installed with pressing plate 3；Also include pressure head 4,4 one end of the pressure head is located in the barrel 1, and live with 1 inwall of the barrel
Dynamic connection, the other end is located at outside the barrel 1, and is provided with the outer rim 5 being connected with press device, the pressure head 4 and institute
State and between 1 second opening of barrel, be provided with sealing member 11, the sealing member 11 can also be able to be sealing ring for seal washer；
Further, the core 8 of annular groove 7 is also offered including briquetting 6 and two side walls, the core 8 is radially divided into two pieces.
Reducing formation experimental provision disclosed by the invention will be treated to load core inside reducing formation tubing 13 when in use, first
Mould 8, core 8 are radially divided into two pieces, to ensure that core 8 can the smoothly taking-up from tubing 13 after component shaping；By what is fixed
Tubing 13 is put in the barrel 1 of reducing formation experimental provision, and in barrel 1 loads solid particle medium 12, by 1 inwall of barrel
It is full with the filling of solid particle medium 12 between the tubing 13 for fixing, pressure head 4 is put into from 1 second opening of barrel, barrel 1 the
The pressing plate 3 of two openings has certain sealing function, prevents solid particle medium 12 from overflowing；Pressure head 4 is pushed simultaneously, and compression is solid
Body granule medium 12, makes tubing 13 realize necking deformation, and tubing 13 gradually undergauge holds together to the patch of core 8, until tubing 13 and core
Mould 8 is brought into close contact postforming to be terminated；4 backhaul of pressure head, the tubing 13 after shaping is taken out from barrel 1.
The present invention also provides a kind of reducing formation engineer testing pipe of utilization aforementioned tubes reducing formation engineer testing device
Material end is fixed and discharge method, and the method step is as follows：
Step one, first places the core 8 in tubing to be processed 13；13 two ends of tubing are cut vertically, tubing is made
13 two ends are uniformly cut into multiple small pieces, the multiple small pieces for cutting into tubing inner bending and overlap successively to the tubing
13 buses are vertically located；
Step 2, the core 8 are bolted with the briquetting 6；Outside by the core 8 and tubing in tubing
The briquetting 6 tubing is bent after cut-away portions compress, and extrude impression, play a part of Complete Bind；The tubing
Interior 8 one end of core is provided with pretension block 9, is connected with pre-loading screw 10 between the pretension block 9 and the briquetting 6, can be with root
Needs are factually tested, axial pre tightening force is applied to tubing cut-away portions by adjusting pre-loading screw 10；
Step 3, the tubing for fixing is placed in the barrel 1, the briquetting 6 at tubing two ends respectively with the base 2 and
The pressing plate 3 is fixedly connected；Carry out undergauge experiment；
When carrying out undergauge experiment, will treat first inside reducing formation tubing 13, to load core 8, core 8 is radially divided into two
Block, to ensure that core 8 can the smoothly taking-up from tubing 13 after component shaping；The tubing 13 for fixing is put into into reducing formation experiment
In the barrel 1 of device, and load solid particle medium 12 in barrel 1, will use between 1 inwall of barrel and the tubing 13 for fixing
The filling of solid particle medium 12 is full, is put into pressure head 4 from 1 second opening of barrel, and the pressing plate 3 of 1 second opening of barrel has one
Fixed sealing function, prevents solid particle medium 12 from overflowing；Pressure head 4 is pushed simultaneously, and compression solid granule medium 12 makes tubing 13
Realize necking deformation, tubing 13 gradually undergauge holds together to the patch of core 8, until tubing 13 is brought into close contact postforming with core 8 and terminates；
4 backhaul of pressure head, the tubing 13 after shaping is taken out from barrel 1.
The tubing 13 fixed in the barrel 1 is taken out after the completion of undergauge experiment, and is cut using angle grinder etc. by step 4
Instrument is cut, the diameter shrinkage part of the tubing 13 for fixing is cut by the annular groove 7 along core 8 with standing part, and tubing 13 is fixed
Part is separated with diameter shrinkage part.
Tubing reducing formation assay device disclosed by the invention and pipe end are fixed and discharge method combines solid
Granule medium forming technology, for the sealing of medium does not have harsh requirement, does not limit the length of pipe deformation section, by more yet
Realize that the reducing formation under the conditions of different distortion length is tested by the shaping core for changing different length, greatly reduce mould system
Make and related accessory cost, be particularly suitable for the reducing formation engineer testing of small lot, plurality of specifications tubing.During experiment, pipe end is solid
It is fixed solid and reliable, the error of experiment is reduced, experimental data degree of accuracy is higher；After the completion of experiment, using one class of angle grinder
The diameter shrinkage part of tubing and pipe end standing part are cut and take out core i.e. by cutting tool, the groove part reserved along core
Can, discharging is quick, convenient.
This specification applies specific case and the principle and embodiment of the present invention is set forth, above example
Illustrate that being only intended to help understands the method for the present invention and its core concept；Simultaneously for one of ordinary skill in the art, according to
According to the thought of the present invention, will change in specific embodiments and applications.In sum, this specification content
Should not be construed as limiting the invention.
Claims (5)
1. a kind of tubing reducing formation engineer testing device, it is characterised in that：Including the barrel of both ends open, the barrel first
Opening is sealedly connected with base, and the second opening of the barrel is installed with pressing plate；Also include pressure head, described pressure head one end
In the barrel, and it is flexibly connected with the material tube inner wall, the other end is located at outside the barrel, and is provided with and is set with pressure
The standby outer rim being connected.
2. tubing reducing formation engineer testing device according to claim 1, it is characterised in that：The base and the pressure
Plate is fixedly connected with the barrel by bolt respectively.
3. tubing reducing formation engineer testing device according to claim 1, it is characterised in that：Also include briquetting and two ends
Side wall offers the core of annular groove, and the core is radially divided into two pieces.
4. the tubing reducing formation engineer testing tubing of tubing reducing formation engineer testing device described in a kind of utilization claim 3
End is fixed and discharge method, it is characterised in that：
Step one, first places the core in tubing to be processed；Tubing two ends are cut into into small pieces vertically, cut-away portions to
Tubing inflection is folded to locate vertical with the tubing bus；
Step 2, the core are bolted with the briquetting；Described in outside the core in tubing and tubing
Tubing cut-away portions are compressed by briquetting；
Step 3, the tubing for fixing is placed in the barrel, the briquetting at tubing two ends respectively with the base and the pressure
Plate is fixedly connected；Carry out undergauge experiment；
The tubing fixed in the barrel is taken out after the completion of undergauge experiment by step 4, and by the tubing for fixing along core
Groove cuts, and tubing standing part is separated with diameter shrinkage part.
5. tubing reducing formation engineer testing pipe end according to claim 4 is fixed and discharge method, and its feature exists
In：In step 2, the core one end in the tubing is provided with pretension block, is connected with pre- between the pretension block and the briquetting
Tight screw；Axial pre tightening force is applied to tubing cut-away portions by pre-loading screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611032001.XA CN106556679B (en) | 2016-11-22 | 2016-11-22 | A kind of tubing reducing formation experimental rig and pipe end is fixed and discharge method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611032001.XA CN106556679B (en) | 2016-11-22 | 2016-11-22 | A kind of tubing reducing formation experimental rig and pipe end is fixed and discharge method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106556679A true CN106556679A (en) | 2017-04-05 |
| CN106556679B CN106556679B (en) | 2018-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611032001.XA Active CN106556679B (en) | 2016-11-22 | 2016-11-22 | A kind of tubing reducing formation experimental rig and pipe end is fixed and discharge method |
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| Country | Link |
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| CN (1) | CN106556679B (en) |
Citations (10)
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|---|---|---|---|---|
| CN1363434A (en) * | 2001-11-21 | 2002-08-14 | 燕山大学 | Expansion shaping technology using soild particles as pressure transfer medium for metallic pipe |
| CN1644262A (en) * | 2005-01-24 | 2005-07-27 | 燕山大学 | Half-mould forming process for metal plate material |
| CN201511312U (en) * | 2009-06-05 | 2010-06-23 | 广东工业大学 | Flexible fixture device |
| CN102554023A (en) * | 2012-01-17 | 2012-07-11 | 燕山大学 | Pipe local reducing method |
| CN102601199A (en) * | 2012-02-29 | 2012-07-25 | 苏州经贸职业技术学院 | Precise-spin reducing device for fixed core type thin wall pipe |
| CN103212598A (en) * | 2013-05-22 | 2013-07-24 | 燕山大学 | Tube blank bilateral reverse central spindle thrusting reducing die and process |
| CN203448557U (en) * | 2013-06-27 | 2014-02-26 | 福建省家具进出口公司 | Tubing head end reducing apparatus |
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2016
- 2016-11-22 CN CN201611032001.XA patent/CN106556679B/en active Active
Patent Citations (10)
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|---|---|---|---|---|
| CN1363434A (en) * | 2001-11-21 | 2002-08-14 | 燕山大学 | Expansion shaping technology using soild particles as pressure transfer medium for metallic pipe |
| CN1644262A (en) * | 2005-01-24 | 2005-07-27 | 燕山大学 | Half-mould forming process for metal plate material |
| CN201511312U (en) * | 2009-06-05 | 2010-06-23 | 广东工业大学 | Flexible fixture device |
| CN102554023A (en) * | 2012-01-17 | 2012-07-11 | 燕山大学 | Pipe local reducing method |
| CN102601199A (en) * | 2012-02-29 | 2012-07-25 | 苏州经贸职业技术学院 | Precise-spin reducing device for fixed core type thin wall pipe |
| CN103212598A (en) * | 2013-05-22 | 2013-07-24 | 燕山大学 | Tube blank bilateral reverse central spindle thrusting reducing die and process |
| CN203448557U (en) * | 2013-06-27 | 2014-02-26 | 福建省家具进出口公司 | Tubing head end reducing apparatus |
| CN103894469A (en) * | 2014-04-04 | 2014-07-02 | 燕山大学 | Solid particle medium thermal expansion forming method for light alloy tubular component |
| CN105013960A (en) * | 2015-08-20 | 2015-11-04 | 哈尔滨工业大学 | Tubular product magnetic pulse drawing-down shaping device and method based on bitter coil |
| CN105945122A (en) * | 2016-07-06 | 2016-09-21 | 燕山大学 | Metal pipe forming equipment and method thereof |
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| Title |
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| GUO-JIANG DONG等: "Flexible-die forming process with solid granule medium on sheet metal", 《TRANS. NONFERROUS MET. SOC. CHINA》 * |
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| Publication number | Publication date |
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| CN106556679B (en) | 2018-12-14 |
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