CN105215130B - The curved swollen performance testing device of tubing - Google Patents
The curved swollen performance testing device of tubing Download PDFInfo
- Publication number
- CN105215130B CN105215130B CN201510531087.XA CN201510531087A CN105215130B CN 105215130 B CN105215130 B CN 105215130B CN 201510531087 A CN201510531087 A CN 201510531087A CN 105215130 B CN105215130 B CN 105215130B
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- China
- Prior art keywords
- insert
- straight flange
- bending section
- tubing
- testing device
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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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/047—Mould construction
-
- 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
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/033—Deforming tubular bodies
- B21D26/049—Deforming bodies having a closed end
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention provides a kind of curved swollen performance testing device of tubing, the test device includes：Upper plate and lower shoe；Two groups of straight flange inserts and bending section insert, the straight flange insert and the bending section insert are folded between the upper plate and the lower shoe, and the bending section insert is folded between straight flange insert described in two groups, the die cavity of straight flange insert and the bending section insert described in an insertion is formed；The outside portion of straight flange insert is provided with high pressure connection wherein described in one, for the die cavity internal-filling liquid.The curved swollen performance testing device of tubing of the present invention is simple and compact for structure, easily operation.Formulation of the curved swollen performance testing device of tubing to complex parts liquid-charging process scheme has directive function, and pass through the research to forming tubular product, can obtain influences the key index of its forming property, can solve some problems faced on tubular member design and select material.
Description
Technical field
The present invention relates to tubing test device field, more particularly to a kind of curved swollen performance testing device of tubing.
Background technology
In the prior art, tubing is a kind of quite extensive material forms of application, and for the performance of tubing, is ground
The person of studying carefully has been set up a set of evaluation method and corresponding evaluation index.These indexs and evaluation method are to be based on linear loading mostly
Or the test of straight tube.
Different from straight tube bulging process, bend pipe bulging class part is in shaping, and straight tube blank must first pass through pre-bending shaping, make
Pipe axis is consistent with final products axis, so that pipe is smoothly put into shaping dies die cavity.
However, during actual processing, because the axial feed at pipe two ends can not be effectively by material compensation to bulging
In area, pre- bend pipe hydroforming technique has bigger enforcement difficulty than straight tube bulging process.Therefore, pipe liquid filled shaping is more
It is the compounding process that bulging is combined by bending, bending pipes section is changed due to geometrical model and boundary condition, therefore
Using straight tube method of testing can not accurate characterization case of bending tubing mechanical property.
The content of the invention
The technical problem to be solved in the present invention is that the curved swollen performance test methods of tubing can not be accurate in order to overcome in the prior art
Really there is provided a kind of curved swollen performance testing device of tubing for the defect of the mechanical property of sign case of bending tubing.
The present invention is to solve above-mentioned technical problem by following technical proposals：A kind of curved swollen performance test dress of tubing
Put, its feature is, the test device includes upper plate, lower shoe；
Two groups of straight flange inserts and bending section insert, the straight flange insert and the bending section insert are folded in the upper plate
Between the lower shoe, and the bending section insert is folded between straight flange insert described in two groups, forms straight described in an insertion
The die cavity of side insert and the bending section insert；
The outside portion of straight flange insert is provided with high pressure connection wherein described in one, for the die cavity internal-filling liquid.
It is preferred that straight flange insert described in every group includes upper straight flange insert and lower straight flange insert, the upper straight flange insert and institute
State and be fixedly connected above and below lower straight flange insert.
It is preferred that the bending section insert includes insert on insert under insert on bending section and bending section, the bending section
Be fixedly connected under the bending section above and below insert.
It is preferred that the high pressure connection is affixed by a band implementation of port plug and the corresponding straight flange insert.
It is preferred that the outside portion of another straight flange insert is provided with seal plug, for preventing the liquid of injection from flowing out institute
State die cavity.
It is preferred that being provided with sealing ring between the seal plug and the straight flange insert.
It is preferred that being additionally provided with back-up ring between the seal plug and the sealing ring.
The positive effect of the present invention is：
The curved swollen performance testing device of tubing of the present invention is simple and compact for structure, easily operation.The curved swollen performance test of tubing
Formulation of the device to complex parts liquid-charging process scheme has directive function, and by the research to forming tubular product, can obtain
The key index of its forming property is influenceed, some problems faced on tubular member design and select material can be solved.
Brief description of the drawings
The above and other feature of the present invention, property and advantage will pass through description with reference to the accompanying drawings and examples
And become apparent, identical reference represents identical feature all the time in the accompanying drawings, wherein：
Fig. 1 is the stereogram of the curved swollen performance testing device of tubing of the present invention.
Fig. 2 is the front view of the curved swollen performance testing device of tubing of the present invention.
Fig. 3 is the top view of the curved swollen performance testing device of tubing of the present invention.
Fig. 4 is the schematic diagram of bending section insert in the curved swollen performance testing device of tubing of the present invention.
Fig. 5 is the schematic diagram of straight flange insert in the curved swollen performance testing device of tubing of the present invention.
Embodiment
For the above objects, features and advantages of the present invention can be become apparent, below in conjunction with tool of the accompanying drawing to the present invention
Body embodiment elaborates.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still the present invention can be with
It is different from other manner described here using other and implements, therefore the present invention is not limited by following public specific embodiment
System.
Fig. 1 is the stereogram of the curved swollen performance testing device of tubing of the present invention.Fig. 2 is the curved swollen performance test dress of tubing of the present invention
The front view put.Fig. 3 is the top view of the curved swollen performance testing device of tubing of the present invention.Fig. 4 is that the curved swollen performance of tubing of the present invention is surveyed
The schematic diagram of middle bending section insert is put in trial assembly.Fig. 5 is the schematic diagram of straight flange insert in the curved swollen performance testing device of tubing of the present invention.
As shown in Figures 1 to 5, a kind of curved swollen performance testing device 10 of tubing is disclosed in one embodiment of the present of invention,
It includes upper plate 11, lower shoe 12, two groups of straight flange inserts and bending section insert.Wherein, the straight flange insert and the bending
Section insert be folded between upper plate 11 and lower shoe 12, and the bending section insert be folded in straight flange insert described in two groups it
Between, form the die cavity 20 of straight flange insert and the bending section insert described in an insertion.Here 12 points of upper plate 11 and lower shoe
The straight flange insert and the bending section insert Yong Yu not fixed.Meanwhile, the outside portion of a straight flange insert is set wherein
There is high pressure connection 30, be mainly used in the internal-filling liquid of die cavity 20.
Preferably, straight flange insert described in every group includes upper straight flange insert 13 and lower straight flange insert 14, the upper He of straight flange insert 13
Lower straight flange insert is fixedly connected about 14.The bending section insert includes insert 16 under insert 15 on bending section and bending section, curved
Insert 15 is fixedly connected with insert under bending section about 16 on tune.
Especially, the high pressure connection 30 set in the straight flange insert by a band implementation of port plug 31 with it is corresponding described
Straight flange insert is affixed, that is, is folded between straight flange insert 13 and lower straight flange insert 14, for toward tubing, (tubing to be arranged on die cavity
In 20) interior injection highly pressurised liquid.Meanwhile, the outside portion of another straight flange insert is provided with seal plug 40, that is, is folded in straight
Between side insert 13 and lower straight flange insert 14, for preventing the liquid of injection from flowing out die cavity 20.Seal plug 40 with it is described straight
Sealing ring 41 is provided between the insert of side, a back-up ring 42 can also be added in seal plug 40 and sealing ring 41.
According to said structure, back-up ring 42 and sealing ring 41 can use standard component, coordinate with seal plug 40 and play close
Envelope is acted on.These certain parts can also be substituted with the part of other phase same-actions.Seal plug 40 and equal with implementation of port plug 31
Play sealing function.Further, boss can also be set at seal plug 40, coordinated with the groove of mold cavity 20,
So as to effectively offset the interior pressure of the tubing die cavity in Bulging Process.
Here upper straight flange insert 13 and lower straight flange insert 14 is respectively used to fixing seal plug 40 and with implementation of port plug
31, and play a part of constraining tubing (tubing is arranged in die cavity 20) two ends.Insert under insert 15 and bending section on bending section
16 can pull down, the material flowing law of the free bulge state for testing tubing bending section.In addition, the pact of bending section part
Beam can also test the forming property of bending pipes medial and lateral.
The occupation mode of the curved swollen performance testing device of tubing of the present invention is as follows：Pass through bending section free bulge experimental test material
Expect flowing law, the bending section insert can be pulled down, constraint tubing straight section carries out the free bulge of bending section, its bulging height
Characterize the forming property of material.It is simultaneously true by the test of bending section Thickness Distribution rule and breakdown point position after tubing free bulge
The material flowing law of fixed tube material bending section free bulge state.
Tested by bulging test under bending section partially restrained condition above and below the forming property in outside in bending pipes, dismounting
Insert or outside insert curved interior respectively to tubing or outside carry out free bulge on the inside of bending section.Bending half after bulging
Footpath size is used as the index for weighing forming tubular product performance.
In summary, the curved swollen performance testing device of tubing of the present invention is simple and compact for structure, easily operation.In automotive light weight technology
Under the overall background of demand, the advanced forming technique including forming tubular product is arisen at the historic moment.Pass through now in country's chassis product
The product of forming tubular product is also increasing, including crossbeam, suspension link etc., studies the macroscopic flow of bend pipe Bulging Process material
It is dynamic.Formulation of the curved swollen performance testing device of tubing to complex parts liquid-charging process scheme has directive function, and by pipe
The research of material formability, can obtain influences the key index of its forming property, can solve on tubular member design and select material
Some problems faced.
Although the foregoing describing the embodiment of the present invention, it will be appreciated by those of skill in the art that these
It is merely illustrative of, protection scope of the present invention is defined by the appended claims.Those skilled in the art is not carrying on the back
On the premise of principle and essence from the present invention, various changes or modifications can be made to these embodiments, but these are changed
Protection scope of the present invention is each fallen within modification.
Claims (3)
1. a kind of curved swollen performance testing device of tubing, it is characterised in that the test device includes：
Upper plate and lower shoe；
Two groups of straight flange inserts and bending section insert, the straight flange insert and the bending section insert are folded in the upper plate and institute
State between lower shoe, and the bending section insert is folded between straight flange insert described in two groups, forms straight flange edge described in an insertion
The die cavity of block and the bending section insert；
The outside portion of straight flange insert is provided with high pressure connection wherein described in one, for the die cavity internal-filling liquid；
Straight flange insert described in every group includes upper straight flange insert and lower straight flange insert, the upper straight flange insert and the lower straight flange insert
It is fixedly connected up and down；
The bending section insert includes insert and the bending section on insert under insert on bending section and bending section, the bending section
It is fixedly connected above and below lower insert；
Two groups of straight flange inserts are used for fixing seal plug and with implementation of port plug, and play a part of constraint tubing two ends, bending
Insert can be pulled down under insert and bending section in section, and rule are flowed for testing the material of free bulge state of tubing bending section
Rule, the constraint of bending section insert part can also test the forming property of bending pipes medial and lateral.
2. the curved swollen performance testing device of tubing as claimed in claim 1, it is characterised in that the seal plug and the straight flange
Sealing ring is provided between insert.
3. the curved swollen performance testing device of tubing as claimed in claim 2, it is characterised in that the seal plug and the sealing
Back-up ring is additionally provided between circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510531087.XA CN105215130B (en) | 2015-08-26 | 2015-08-26 | The curved swollen performance testing device of tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510531087.XA CN105215130B (en) | 2015-08-26 | 2015-08-26 | The curved swollen performance testing device of tubing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105215130A CN105215130A (en) | 2016-01-06 |
| CN105215130B true CN105215130B (en) | 2017-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510531087.XA Active CN105215130B (en) | 2015-08-26 | 2015-08-26 | The curved swollen performance testing device of tubing |
Country Status (1)
| Country | Link |
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| CN (1) | CN105215130B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304388B (en) * | 2017-07-28 | 2020-06-12 | 上海宝钢高新技术零部件有限公司 | Device and method for in-mold bending of hydraulic forming four-bend part |
| CN110538916A (en) * | 2019-09-04 | 2019-12-06 | 长春近江汽车零部件有限公司 | Water expansion forming process for pipe fitting for automobile engine |
| CN110538917A (en) * | 2019-09-04 | 2019-12-06 | 长春近江汽车零部件有限公司 | Water expansion equipment |
| CN110935781A (en) * | 2019-11-15 | 2020-03-31 | 保隆(安徽)汽车配件有限公司 | Novel interior high pressure forming die and shaping device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB835259A (en) * | 1955-06-17 | 1960-05-18 | Flexonics Corp | Bent tubular metal articles |
| CN1274306A (en) * | 1997-10-07 | 2000-11-22 | 科西马国际公司 | Hydroformed angled tubular part, and method and appts. for making same |
| CN101657278A (en) * | 2007-04-18 | 2010-02-24 | 新日本制铁株式会社 | Method of hydroforming work |
| CN102601204A (en) * | 2012-03-15 | 2012-07-25 | 吉林省元隆达工装设备有限公司 | Multi-deformed bending forming method and device for pipe fitting |
| CN202921738U (en) * | 2012-11-27 | 2013-05-08 | 江苏麦涛机电设备有限公司 | Thin-wall three-way pipe forming device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4744237A (en) * | 1987-05-06 | 1988-05-17 | Ti Automotive Division Of Ti Canada Inc. | Method of forming box-like frame members |
-
2015
- 2015-08-26 CN CN201510531087.XA patent/CN105215130B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB835259A (en) * | 1955-06-17 | 1960-05-18 | Flexonics Corp | Bent tubular metal articles |
| CN1274306A (en) * | 1997-10-07 | 2000-11-22 | 科西马国际公司 | Hydroformed angled tubular part, and method and appts. for making same |
| CN101657278A (en) * | 2007-04-18 | 2010-02-24 | 新日本制铁株式会社 | Method of hydroforming work |
| CN102601204A (en) * | 2012-03-15 | 2012-07-25 | 吉林省元隆达工装设备有限公司 | Multi-deformed bending forming method and device for pipe fitting |
| CN202921738U (en) * | 2012-11-27 | 2013-05-08 | 江苏麦涛机电设备有限公司 | Thin-wall three-way pipe forming device |
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| Publication number | Publication date |
|---|---|
| CN105215130A (en) | 2016-01-06 |
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