CN105215130A - The curved swollen performance testing device of tubing - Google Patents
The curved swollen performance testing device of tubing Download PDFInfo
- Publication number
- CN105215130A CN105215130A CN201510531087.XA CN201510531087A CN105215130A CN 105215130 A CN105215130 A CN 105215130A CN 201510531087 A CN201510531087 A CN 201510531087A CN 105215130 A CN105215130 A CN 105215130A
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- CN
- China
- Prior art keywords
- insert
- straight flange
- tubing
- bending section
- 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 the curved swollen performance testing device of a kind of tubing, described testing arrangement comprises: upper plate and lower shoe; Two groups of straight flange inserts and bending section insert, described straight flange insert and described bending section insert are folded between described upper plate and described lower shoe, and described bending section insert is folded in described in two groups between straight flange insert, form the die cavity of a through described straight flange insert and described bending section insert; Wherein described in one, the outside portion of straight flange insert is provided with high pressure connection, for described die cavity internal-filling liquid.The curved swollen performance testing device of tubing of the present invention is simple and compact for structure, easily operates.The formulation of the curved swollen performance testing device of described tubing to complex parts liquid-charging process scheme has directive function, and by the research to forming tubular product, the key index affecting its forming property can be obtained, some difficult problems faced on tubular member design and select material can be solved.
Description
Technical field
The present invention relates to tubing testing arrangement field, particularly the curved swollen performance testing device of a kind of tubing.
Background technology
In the prior art, tubing is a kind of range of application material forms quite widely, and for the performance of tubing, researcher has established a set of evaluation method and corresponding evaluation index.Mostly these indexs and evaluation method are the test based on linear loading or straight tube.
Different from straight tube bulging process, bend pipe bulging class part is when being shaped, and straight tube blank must first be shaped through pre-bending, makes pipe axis consistent with final products axis, so that pipe puts into shaping dies die cavity smoothly.
But, in actual process, due to pipe two ends axial feed cannot effectively by material compensation in bulging district, pre-bend pipe hydroforming technique has larger enforcement difficulty than straight tube bulging process.Therefore, mostly pipe liquid filled shaping is by the bending compounding process in conjunction with bulging, and bending pipes section there occurs change due to geometrical model and boundary condition, therefore adopts the method for testing of straight tube can not the mechanical property of accurate characterization case of bending tubing.
Summary of the invention
The technical problem to be solved in the present invention is can not the defect of mechanical property of accurate characterization case of bending tubing in order to overcome the curved swollen performance test methods of tubing in prior art, provides a kind of tubing curved swollen performance testing device.
The present invention solves above-mentioned technical problem by following technical proposals: the curved swollen performance testing device of a kind of tubing, and its feature is, described testing arrangement comprises upper plate, lower shoe;
Two groups of straight flange inserts and bending section insert, described straight flange insert and described bending section insert are folded between described upper plate and described lower shoe, and described bending section insert is folded in described in two groups between straight flange insert, form the die cavity of a through described straight flange insert and described bending section insert;
Wherein described in one, the outside portion of straight flange insert is provided with high pressure connection, for described die cavity internal-filling liquid.
Preferably, often organize described straight flange insert and comprise straight flange insert and lower straight flange insert, described upper straight flange insert is fixedly connected with up and down with described lower straight flange insert.
Preferably, described bending section insert to comprise on bending section insert under insert and bending section, and on described bending section, insert is fixedly connected with up and down with insert under described bending section.
Preferably, described high pressure connection is affixed with corresponding described straight flange insert by a band implementation of port plug.
Preferably, described in another, the outside portion of straight flange insert is provided with seal plug, flows out described die cavity for stoping the liquid of injection.
Preferably, sealing ring is provided with between described seal plug and described straight flange insert.
Preferably, also back-up ring is provided with between described seal plug and described sealing ring.
Positive progressive 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 operates.The formulation of the curved swollen performance testing device of described tubing to complex parts liquid-charging process scheme has directive function, and by the research to forming tubular product, the key index affecting its forming property can be obtained, some difficult problems faced on tubular member design and select material can be solved.
Accompanying drawing explanation
The above and other feature of the present invention, character and advantage are by more obvious by what become below in conjunction with the description of drawings and Examples, and Reference numeral identical in the accompanying drawings represents identical feature all the time, 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.
Detailed description of the invention
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.
Set forth a lot of detail in the following description so that fully understand the present invention, but the present invention can also adopt other to be different from alternate manner described here to implement, therefore the present invention is not by the restriction of following public specific embodiment.
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.
As shown in Figures 1 to 5, disclose the curved swollen performance testing device 10 of a kind of tubing in one embodiment of the present of invention, it comprises upper plate 11, lower shoe 12, two groups of straight flange inserts and bending section insert.Wherein, described straight flange insert and described bending section insert are folded between upper plate 11 and lower shoe 12, and described bending section insert is folded in described in two groups between straight flange insert, form the die cavity 20 of a through described straight flange insert and described bending section insert.Here upper plate 11 and lower shoe 12 are respectively used to fixing described straight flange insert and described bending section insert.Meanwhile, the outside portion of a described straight flange insert is provided with high pressure connection 30 wherein, is mainly used in die cavity 20 internal-filling liquid.
Preferably, often organize described straight flange insert and comprise straight flange insert 13 and lower straight flange insert 14, upper straight flange insert 13 is fixedly connected with lower straight flange insert about 14.Described bending section insert to comprise on bending section insert 16 under insert 15 and bending section, and on bending section, insert 15 is fixedly connected with insert under bending section about 16.
Especially, the high pressure connection 30 that described straight flange insert is arranged is affixed with corresponding described straight flange insert by a band implementation of port plug 31, namely be folded between straight flange insert 13 and lower straight flange insert 14, for injecting highly pressurised liquid in tubing (tubing is arranged in die cavity 20).Meanwhile, described in another, the outside portion of straight flange insert is provided with seal plug 40, being namely folded between straight flange insert 13 and lower straight flange insert 14, going out die cavity 20 for stoping the liquid stream of injection.Between seal plug 40 and described straight flange insert, be provided with sealing ring 41, a back-up ring 42 can also be added at seal plug 40 and sealing ring 41.
According to said structure, back-up ring 42 and sealing ring 41 all can adopt standard component, coordinate play sealing function with seal plug 40.Certainly these parts also can substitute with the parts of other phase same-actions.Seal plug 40 and band implementation of port plug 31 all play sealing function.Further, boss can also be set at seal plug 40 place, coordinate with the groove of mold cavity 20, thus effectively can to offset in Bulging Process pressure in tubing die cavity.
Here upper straight flange insert 13 and lower straight flange insert 14 are respectively used to fixing seal plug 40 and band implementation of port plug 31, and play the effect at constraint tubing (tubing is arranged in die cavity 20) two ends.On bending section, under insert 15 and bending section, insert 16 can be pulled down, for testing the material flowing law of the free bulge state of tubing bending section.In addition, the constraint of bending section part 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: by bending section free bulge experimental test material flowing law, described bending section insert can be pulled down, constraint tubing straight section carries out the free bulge of bending section, the forming property of its bulging height exosyndrome material.Determine the material flowing law of bending pipes section free bulge state by the test of bending section Thickness Distribution rule and breakdown point position after tubing free bulge simultaneously.
By the forming property in outside in bulging test test bending pipes under bending section partially restrained condition, remove insert or outside insert inside upper and lower bending section and respectively free bulge is carried out to the curved interior of tubing or outside.After bulging, bending radius size is as the index weighing forming tubular product performance.
In sum, the curved swollen performance testing device of tubing of the present invention is simple and compact for structure, easily operates.Under the overall background of automotive light weight technology demand, the advanced forming technique comprising forming tubular product is arisen at the historic moment.Product by forming tubular product in the product of present domestic chassis is also increasing, comprising crossbeam, suspension link etc., and the macroscopic view flowing of research bend pipe Bulging Process material.The formulation of the curved swollen performance testing device of described tubing to complex parts liquid-charging process scheme has directive function, and by the research to forming tubular product, the key index affecting its forming property can be obtained, some difficult problems faced on tubular member design and select material can be solved.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (7)
1. the curved swollen performance testing device of tubing, it is characterized in that, described testing arrangement comprises:
Upper plate and lower shoe;
Two groups of straight flange inserts and bending section insert, described straight flange insert and described bending section insert are folded between described upper plate and described lower shoe, and described bending section insert is folded in described in two groups between straight flange insert, form the die cavity of a through described straight flange insert and described bending section insert;
Wherein described in one, the outside portion of straight flange insert is provided with high pressure connection, for described die cavity internal-filling liquid.
2. the curved swollen performance testing device of tubing as claimed in claim 1, it is characterized in that, often organize described straight flange insert and comprise straight flange insert and lower straight flange insert, described upper straight flange insert is fixedly connected with up and down with described lower straight flange insert.
3. the curved swollen performance testing device of tubing as claimed in claim 1, is characterized in that, described bending section insert to comprise on bending section insert under insert and bending section, and on described bending section, insert is fixedly connected with up and down with insert under described bending section.
4. the curved swollen performance testing device of tubing as claimed in claim 2, is characterized in that, described high pressure connection is affixed with corresponding described straight flange insert by a band implementation of port plug.
5. the curved swollen performance testing device of tubing as claimed in claim 1, it is characterized in that, described in another, the outside portion of straight flange insert is provided with seal plug, flows out described die cavity for stoping the liquid of injection.
6. the curved swollen performance testing device of tubing as claimed in claim 5, is characterized in that, be provided with sealing ring between described seal plug and described straight flange insert.
7. the curved swollen performance testing device of tubing as claimed in claim 6, is characterized in that, be also provided with back-up ring between described seal plug and described sealing ring.
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 true CN105215130A (en) | 2016-01-06 |
| CN105215130B CN105215130B (en) | 2017-07-28 |
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| 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 |
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| Country | Link |
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| CN (1) | CN105215130B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304388A (en) * | 2017-07-28 | 2019-02-05 | 上海宝钢高新技术零部件有限公司 | Bending press and method in a kind of curved part mould of hydroforming four |
| CN110538917A (en) * | 2019-09-04 | 2019-12-06 | 长春近江汽车零部件有限公司 | Water expansion equipment |
| 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 |
| 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 (6)
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|---|---|---|---|---|
| GB835259A (en) * | 1955-06-17 | 1960-05-18 | Flexonics Corp | Bent tubular metal articles |
| JPS6440121A (en) * | 1987-05-06 | 1989-02-10 | T I Canada Inc | Method of molding box-shaped frame member |
| 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 |
-
2015
- 2015-08-26 CN CN201510531087.XA patent/CN105215130B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB835259A (en) * | 1955-06-17 | 1960-05-18 | Flexonics Corp | Bent tubular metal articles |
| JPS6440121A (en) * | 1987-05-06 | 1989-02-10 | T I Canada Inc | Method of molding box-shaped frame member |
| 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304388A (en) * | 2017-07-28 | 2019-02-05 | 上海宝钢高新技术零部件有限公司 | Bending press and method in a kind of curved part mould of hydroforming four |
| CN110538917A (en) * | 2019-09-04 | 2019-12-06 | 长春近江汽车零部件有限公司 | Water expansion equipment |
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105215130B (en) | 2017-07-28 |
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