CN204286926U - A kind of test piece mould of fragility sandwich material and supporting tensile test fixture thereof - Google Patents
A kind of test piece mould of fragility sandwich material and supporting tensile test fixture thereof Download PDFInfo
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- CN204286926U CN204286926U CN201420548789.XU CN201420548789U CN204286926U CN 204286926 U CN204286926 U CN 204286926U CN 201420548789 U CN201420548789 U CN 201420548789U CN 204286926 U CN204286926 U CN 204286926U
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Abstract
The utility model discloses a kind of test piece mould of fragility sandwich material and supporting tensile test fixture thereof, mould comprises base plate, side panel and pressing plate, described side panel is connected with base plate, connected by web member between described side panel, side panel is provided with groove, and pressing plate embeds in the groove of side panel; Described fixture comprises chuck, and described chuck is provided with connection ball pivot.The utility model has that structure is simple, convenient disassembly, with low cost, holding area large, with Specimen Shape no-float, be easy to features such as clearing up.
Description
Technical field
The utility model relates to a kind of mould and matched clamp thereof.More specifically, a kind of test piece mould of fragility sandwich material and supporting tensile test fixture thereof is related to.
Background technology
Tension test is an important tests in material mechanical performance test, by clavate, flat-form material sample are fixed on the stretching head of material stretch test machine, Slow loading, stretching head is slowly separated, sample is constantly extended when axial uniform stressed, until fracture, thus a series of important mechanical performance indexs such as the pulling strengrth of mensuration material, fracture strength and tensile modulus of elasticity.Common template material test specimen generally uses mould one-time-concreting shaping, and whole test specimen is commaterial.And according to actual requirement of engineering (such as: carbon cloth or strengthened with GFRP sheets xoncrete structure), another kind of fiber cloth often need be covered on a kind of material surface layer, then do surface layer covering thereon, form a kind of interlayer, play overall stressed effect.So, when the tensile strength test carrying out this kind of sandwich material, need the tensile strength of the material monolithic of calibration tape interlayer.The existing mould for the preparation of tension test test specimen, is only applicable to the sheet material preparing commaterial, cannot add interlayer or cannot ensure that adding interlayer keeps stretching state, can cause obtaining mechanical property test result accurately.
In addition, when carrying out material tensile test, need to ensure the axis of plate shaped sample and Impact direction on the same line, to ensure sample uniform stressed in the axial direction.When carrying out tension test to some hard brittle materials, due to the fragility feature of material, the stressed off-axis a little of sample to, or discontinuity a little, very easily causes sample premature degradation, thus can not get test findings accurately.Therefore, need test specimen and fixture to agree with completely, and the fixture at two suitably can adjust guarantee axially loaded automatically.The existing technology for hard brittle material tension test, the normal connection adopting bonding method and spherical fixture method to realize sample and material stretch test machine stretching head, but there is open defect in actual use in these two kinds of methods.Because the bonding location of bonding method is entirely by manually determining, the axis of very difficult guarantee sample and Impact direction on the same line, are added the impact of bonding strength, are likely just ruptured from abutting edge at drawing process sample.One end of spherical fixture method is spherical, and other end cone-shaped body fixes sample, and in drawing process, sample can not change oneself axes orientation automatically with tensile force, also easily cause test specimen to rupture in advance.。Obviously, the existing method for hard brittle material tension test also exists and is difficult to ensure, on the axis of sample and the same straight line of Impact direction, to need manual shift, thus affect the problem of testing result reliability.
Utility model content
First technical matters to be solved in the utility model is to provide a kind of test piece mould of fragility sandwich material and supporting tensile test fixture thereof, and this invention has that structure is simple, convenient disassembly, with low cost, holding area large, with Specimen Shape no-float, be easy to features such as clearing up.
For solving above-mentioned first technical matters, the utility model adopts following technical proposals:
A kind of test piece mould of fragility sandwich material and supporting tensile test fixture thereof, comprise mould and fixture, described mould comprises base plate, the first side panel, the second side panel and pressing plate, described first side panel is connected with base plate respectively with the second side panel, connected by web member between described first side panel and the second side panel, first side panel and the second side panel are provided with groove, and pressing plate embeds in the groove of described first side panel and the second side panel; Described fixture comprises chuck, and described chuck is provided with connection ball pivot.
Preferably, described web member comprises body, screw rod and nut, and described body is square body with holes, and screw rod is passed in cylinder two ends and is fixed by nut from hole, and described web member is two.
Preferably, the side of described first side panel and the second side panel is towards outer lug, and described groove is located at the two ends of the first side panel and the second side panel.
Preferably, described base plate is one piece.
Preferably, described platen width is identical with described recess width.
Preferably, described collet shapes conforms to test Specimen Shape.
Mould in the utility model and fixture, except base plate, all need to adopt intensity to be not less than the steel plate of Q245, and need process through high-frequency quenching, to prevent distortion, ensure degree of accuracy.
The beneficial effects of the utility model are as follows:
The utility model has that structure is simple, convenient disassembly, with low cost, holding area large, with Specimen Shape no-float, be easy to features such as clearing up.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is mould plan structure schematic diagram of the present utility model;
Fig. 2 is the front elevation of mould;
Fig. 3 is clamp structure schematic diagram of the present utility model;
Wherein 1-first side panel, 2-base plate, 3-web member, 4-pressing plate, 5-bolt, 6-ball pivot, 7-chuck, 8-test specimen, 9-second side panel
Embodiment
In order to be illustrated more clearly in the utility model, below in conjunction with preferred embodiments and drawings, the utility model is described further.Parts similar in accompanying drawing represent with identical Reference numeral.It will be appreciated by those skilled in the art that specifically described content is illustrative and nonrestrictive below, protection domain of the present utility model should do not limited with this.
Embodiment 1
The test piece mould of fragility sandwich material and a supporting tensile test fixture thereof, comprise mould and fixture; Mould comprises base plate 2, first side panel 1, second side panel 9 and pressing plate 4, first side panel 1 is connected with base plate 2 with the second side panel 9, is connected between the first side panel 1 and the second side panel 9 by web member 3; Web member 3 comprises body, screw rod and nut, and body is square body with holes, and screw rod is passed in cylinder two ends and is fixed by nut from hole, and web member is two; First side panel 1 and the second side panel 9 are all provided with groove, pressing plate 4 embeds in the groove of the first side panel 1 and the second side panel 9 simultaneously; Fixture comprises chuck 7, and chuck 7 is provided with connection ball pivot, and collet shapes conforms to test test specimen 8 shape.
The side of the first side panel 1 and the second side panel 9 is towards outer lug, groove is located at the two ends of the first side panel 1 and the second side panel 9, first side panel 1 is connected by web member 3 with the second side panel 9, and base plate 2 is connected by bolt 5 with the first side panel 1 and the second side panel 9.Base plate is one piece; Pressing plate 4 width is identical with recess width.
When mould of the present utility model is installed, each parts being connected, and has respectively embedded a block pressur plate at two pieces of side panel two ends grooves, by each bolt tightening, just can, toward wherein building ground floor material, having built highly parallel with pressing plate.After suitably striking off, put into fiber cloth, ensure that itself and lower floor build material and paste completely and be incorporated in two ends and strain, compress cloth two ends with second layer pressing plate, prevent cloth to bounce back distortion.Using such method, completes building of each layer.After dumbbell shape test specimen 8 completes, be transported to clamping fixture head 7 by driving chain first-class to be loaded.
When test stretches, notice that test specimen 8 edge must coincide with chuck 7 inner edge, prevent stress from concentrating.Also can add the rubber sheet of suitable thickness and hardness in addition between chuck 7 and test specimen 8, concentrate to reduce test specimen and the excessive stress caused of chuck stiffness difference.After installing, just tension test can be carried out.
Obviously; above-described embodiment of the present utility model is only for the utility model example is clearly described; and be not the restriction to embodiment of the present utility model; for those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here cannot give exhaustive to all embodiments, every belong to the technical solution of the utility model the apparent change of extending out or variation be still in the row of protection domain of the present utility model.
Claims (6)
1. the test piece mould of a fragility sandwich material and supporting tensile test fixture thereof, comprise mould and fixture, it is characterized in that: described mould comprises base plate (2), first side panel (1), second side panel (9) and pressing plate (4), described first side panel (1), second side panel (9) is all connected with base plate (2), connected by web member (3) between described first side panel (1) and described second side panel (9), described first side panel and the second side panel are all provided with groove, pressing plate embeds in the groove of described first side panel and the second side panel, described fixture comprises chuck (7), and described chuck is provided with and connects ball pivot (6).
2. the test piece mould of fragility sandwich material according to claim 1 and supporting tensile test fixture thereof, it is characterized in that: the side of described first side panel is towards outer lug, the side of described second side panel is towards outer lug, and described groove is located at the two ends of the first side panel and the second side panel.
3. the test piece mould of fragility sandwich material according to claim 1 and supporting tensile test fixture thereof, is characterized in that: described pressing plate (4) width is identical with described recess width.
4. the test piece mould of fragility sandwich material according to claim 1 and supporting tensile test fixture thereof, it is characterized in that: described web member (3) comprises body, screw rod and nut, described body is square body with holes, screw rod is passed in cylinder two ends and is fixed by nut from hole, described web member is two.
5. the test piece mould of fragility sandwich material according to claim 1 and supporting tensile test fixture thereof, is characterized in that: described base plate is one piece.
6. the test piece mould of fragility sandwich material according to claim 1 and supporting tensile test fixture thereof, is characterized in that: described collet shapes conforms to test test specimen (8) shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548789.XU CN204286926U (en) | 2014-09-23 | 2014-09-23 | A kind of test piece mould of fragility sandwich material and supporting tensile test fixture thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420548789.XU CN204286926U (en) | 2014-09-23 | 2014-09-23 | A kind of test piece mould of fragility sandwich material and supporting tensile test fixture thereof |
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| CN204286926U true CN204286926U (en) | 2015-04-22 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466745A (en) * | 2016-01-13 | 2016-04-06 | 天津大学 | Cement-based material I-type test piece restraining shrinkage test mold and method |
| CN105954127A (en) * | 2016-05-12 | 2016-09-21 | 常州市宏发纵横新材料科技股份有限公司 | Strip sample for fatigue test of fiber reinforced material |
| CN106706420A (en) * | 2017-03-13 | 2017-05-24 | 湖南科技大学 | Clamp for tensile strength test of material |
| CN107727503A (en) * | 2017-11-15 | 2018-02-23 | 中国人民解放军陆军工程大学 | A kind of free sticky experimental rig and method for rocks in direct tension experiment |
| CN107817154A (en) * | 2017-10-26 | 2018-03-20 | 哈尔滨工业大学 | Multifunctional concrete list draws specimen molding and experimental provision |
| CN111678782A (en) * | 2020-05-14 | 2020-09-18 | 江苏禹治流域管理技术研究院有限公司 | Testing device and testing method for anti-drawing performance of single fiber test piece |
| CN111678780A (en) * | 2020-05-14 | 2020-09-18 | 江苏禹治流域管理技术研究院有限公司 | Tensile-pulling test device and method for prefabricated crack test piece with microfiber embedded in cement matrix |
| CN111678781A (en) * | 2020-05-14 | 2020-09-18 | 江苏禹治流域管理技术研究院有限公司 | Single-side matrix test piece anti-pulling testing device and method with microfibers embedded in cement matrix |
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2014
- 2014-09-23 CN CN201420548789.XU patent/CN204286926U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466745A (en) * | 2016-01-13 | 2016-04-06 | 天津大学 | Cement-based material I-type test piece restraining shrinkage test mold and method |
| CN105954127A (en) * | 2016-05-12 | 2016-09-21 | 常州市宏发纵横新材料科技股份有限公司 | Strip sample for fatigue test of fiber reinforced material |
| CN106706420A (en) * | 2017-03-13 | 2017-05-24 | 湖南科技大学 | Clamp for tensile strength test of material |
| CN107817154A (en) * | 2017-10-26 | 2018-03-20 | 哈尔滨工业大学 | Multifunctional concrete list draws specimen molding and experimental provision |
| CN107727503A (en) * | 2017-11-15 | 2018-02-23 | 中国人民解放军陆军工程大学 | A kind of free sticky experimental rig and method for rocks in direct tension experiment |
| CN111678782A (en) * | 2020-05-14 | 2020-09-18 | 江苏禹治流域管理技术研究院有限公司 | Testing device and testing method for anti-drawing performance of single fiber test piece |
| CN111678780A (en) * | 2020-05-14 | 2020-09-18 | 江苏禹治流域管理技术研究院有限公司 | Tensile-pulling test device and method for prefabricated crack test piece with microfiber embedded in cement matrix |
| CN111678781A (en) * | 2020-05-14 | 2020-09-18 | 江苏禹治流域管理技术研究院有限公司 | Single-side matrix test piece anti-pulling testing device and method with microfibers embedded in cement matrix |
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