CN217688245U - Clamping device for metal sheet tensile test sample - Google Patents
Clamping device for metal sheet tensile test sample Download PDFInfo
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- CN217688245U CN217688245U CN202221540959.0U CN202221540959U CN217688245U CN 217688245 U CN217688245 U CN 217688245U CN 202221540959 U CN202221540959 U CN 202221540959U CN 217688245 U CN217688245 U CN 217688245U
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- clamping
- clamping plate
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- holding
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- 238000009864 tensile test Methods 0.000 title claims abstract description 17
- 239000002184 metal Substances 0.000 title claims abstract description 11
- 239000011888 foil Substances 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 abstract description 24
- 238000005452 bending Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005253 cladding Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract description 2
- 239000007769 metal material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses a sample clamping device for a metal sheet tensile test, which comprises a first clamping component, a second clamping component and a abdicating window, wherein the first clamping component comprises a first clamping plate and a second clamping plate which are connected through a first fastener; the second clamping assembly comprises a third clamping plate and a fourth clamping plate which are connected through a second fastener; the abdicating window comprises a first window and a second window, and the first window and the second window are respectively arranged on the clamping plates on the same side as the first clamping assembly and the second clamping assembly. The beneficial effects of the above technical scheme are: the first clamping component and the second clamping component that set up can press from both sides tight test sample's both ends respectively to penetrate the extensometer from the position of the window of stepping down, because first clamping component and second clamping component cladding test sample are at the peripheral part of the window of stepping down, consequently the lateral force that the extensometer applyed test sample can not lead to test sample to take place bending deformation.
Description
Technical Field
The utility model relates to a mechanical properties testing arrangement technical field, concretely relates to foil tensile test sample clamping device.
Background
The metal material is one of the most important basic resources in the field of industrial production, and the mechanical property of the metal material is an important evaluation index for judging whether an industrial product is qualified or not. Among many mechanical property evaluation indexes, the room temperature tensile property is most widely applied due to the characteristics of low cost and strong representativeness.
With the continuous refinement of the research scale of materials, more and more researchers begin to pay attention to the organizational structure and the mechanical property evolution mechanism of the metal material in the micro-nano scale. However, during tensile (or cyclic tensile, i.e., loading, unloading, etc.) testing of the metal microflakes, the samples are very thin, and during clamping, the extensometers used to measure deformation can subject the samples to lateral forces that cause them to bend. This can lead to inaccurate measurement of deformation in the elastic stage of the tensile test in the early stage, and also can lead to serious problems of asymmetrical data in the loading and unloading processes of the cyclic tensile test.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a foil tensile test sample clamping device can avoid test sample to take place bending deformation.
The utility model provides a technical scheme be: a clamping device for a metal sheet tensile test sample comprises a first clamping assembly, a second clamping assembly and a abdicating window, wherein the first clamping assembly comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate enclose a clamping space, and the first clamping plate and the second clamping plate are connected through a first fastener; the second clamping assembly comprises a third clamping plate and a fourth clamping plate, the third clamping plate and the fourth clamping plate enclose a clamping space, and the third clamping plate and the fourth clamping plate are connected through a second fastener; the abdicating window comprises a first window and a second window, and the first window and the second window are respectively arranged on the clamping plates on the same side of the first clamping assembly and the second clamping assembly.
The beneficial effects of the above technical scheme are: the first clamping component and the second clamping component that set up can press from both sides tight test sample's both ends respectively to penetrate the extensometer from the position of the window of stepping down, because first clamping component and second clamping component cladding test sample are at the peripheral part of the window of stepping down, consequently the lateral force that the extensometer applyed test sample can not lead to test sample to take place bending deformation.
Furthermore, one side of the first clamping assembly opposite to the second clamping assembly is provided with a first extending portion, one side of the second clamping assembly opposite to the first clamping assembly is provided with a second extending portion, the lengths of the first extending portion and the second extending portion are equal, and the first extending portion and the second extending portion are arranged in a staggered mode. When the first clamping assembly and the second clamping assembly are separated along with the pulling of the test sample, the first extension part and the second extension part can still act on the test sample, and the phenomenon that the test sample is stretched to form a gap which cannot be covered by the first clamping assembly and the second clamping assembly is avoided.
Further, the width of the first extension part is half of that of the first clamping assembly, the width of the second extension part is half of that of the second clamping assembly, and a contact surface of the first extension part and the second extension part, which are in contact with each other, is located on a midline of the first clamping assembly and the second clamping assembly.
Further, first fastener includes a plurality of distribute in the first bolt of first window both sides, it is a plurality of first bolt runs through first splint with the second splint, the second fastener includes a plurality of distribute in the second bolt of second window both sides, it is a plurality of the second bolt runs through the third splint with the fourth splint.
Furthermore, the number of the first bolts is three, the first extending portion is provided with a first bolt in a penetrating mode, and the second extending portion is provided with a second bolt in a penetrating mode.
Furthermore, a limiting guide piece is further arranged between the first clamping assembly and the second clamping assembly and arranged on the outer sides of the first clamping assembly and the second clamping assembly. Spacing guide can be with first centre gripping subassembly and second centre gripping subassembly restriction to the coplanar in, avoid taking place the dislocation and bend test sample.
Furthermore, spacing guide part includes the guide bar, be provided with on the first centre gripping subassembly with the first slider that the guide bar links to each other, be provided with on the second centre gripping subassembly with the second slider that the guide bar links to each other.
Further, first slider is fixed in the avris of first splint, the second slider is fixed in the avris of third splint, first splint with the third splint are located the coplanar.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.
Fig. 1 is a front view of an embodiment of the present invention in an original state;
fig. 2 is a front view of an embodiment of the present invention in a stretched state;
fig. 3 is a side cross-sectional view of an embodiment of the invention;
fig. 4 is a schematic structural view of the embodiment of the present invention provided with a limiting guide.
Reference numerals: first clamping assembly 100, first clamping plate 101, second clamping plate 102, first bolt 110, first window 120, second clamping assembly 200, third clamping plate 201, fourth clamping plate 202, second bolt 210, second window 220, first extension 300, second extension 400, test specimen 500, guide rod 600, first slider 610, second slider 620.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.
It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.
As shown in fig. 1 to 4, the present embodiment provides a clamping device for a sheet metal tensile test sample, which includes a first clamping assembly 100, a second clamping assembly 200, and a yield window, where the first clamping assembly 100 includes a first clamping plate 101 and a second clamping plate 102, the first clamping plate 101 and the second clamping plate 102 enclose a clamping space, and the first clamping plate 101 and the second clamping plate 102 are connected by a first fastener; the second clamping assembly 200 comprises a third clamping plate 201 and a fourth clamping plate 202, the third clamping plate 201 and the fourth clamping plate 202 enclose a clamping space, and the third clamping plate 201 and the fourth clamping plate 202 are connected through a second fastener; the abdicating window comprises a first window 120 and a second window 220, wherein the first window 120 and the second window 220 are respectively arranged on the clamping plates of the first clamping assembly 100 and the second clamping assembly 200 which are positioned on the same side. Specifically, the first window 120 is opened on the first clamping plate 101, the second window 220 is opened on the third clamping plate 201, the first clamping plate 101 and the third clamping plate 201 are located on the same plane, and correspondingly, the second clamping plate 102 and the fourth clamping plate 202 are also located on the same plane.
During the use, the two ends of the test sample can be respectively clamped by the arranged first clamping component 100 and the second clamping component 200, and the extensometer penetrates through the abdicating window, because the first clamping component 100 and the second clamping component 200 cover the part of the test sample on the periphery of the abdicating window, the lateral force applied to the test sample by the extensometer cannot cause the test sample to be subjected to bending deformation.
In order to increase the clamping effect, a first extension 300 is disposed on a side of the first clamping assembly 100 opposite to the second clamping assembly 200, the first extension 300 has two pieces and is fixed on the first clamping plate 101 and the second clamping plate 102, respectively, a second extension 400 is disposed on a side of the second clamping assembly 200 opposite to the first clamping assembly 100, and the second extension 400 has two pieces and is fixed on the third clamping plate 201 and the fourth clamping plate 202, respectively. The first extension 300 and the second extension 400 have the same length, and the first extension 300 and the second extension 400 are arranged in a staggered manner. When the first clamping assembly 100 and the second clamping assembly 200 are separated along with the pulling of the test sample 500, the first extension 300 and the second extension 400 can still act on the test sample 500, and the test sample 500 is prevented from generating a gap which can not be covered by the first clamping assembly 100 and the second clamping assembly 200 after being stretched. Specifically, the width of the first extension 300 is half of that of the first clamping assembly 100, the width of the second extension 400 is half of that of the second clamping assembly 200, and the contact surface of the first extension 300 and the second extension 400 is located on the center line of the first clamping assembly 100 and the second clamping assembly 200.
The first fastening member includes a plurality of first bolts 110 distributed on both sides of the first window 120, the plurality of first bolts 110 penetrate through the first clamping plate 101 and the second clamping plate 102, the second fastening member includes a plurality of second bolts 210 distributed on both sides of the second window 220, and the plurality of second bolts 210 penetrate through the third clamping plate 201 and the fourth clamping plate 202. The number of the first bolts 110 is three, the first bolt 110 is inserted into the first extending portion 300, and the second bolt 210 is inserted into the second extending portion 400.
During stretching, the first clamping assembly 100 and the second clamping assembly 200 move in opposite directions, respectively, to avoid misalignment. A limiting guide is further arranged between the first clamping assembly 100 and the second clamping assembly 200, and the limiting guide is arranged on the outer sides of the first clamping assembly 100 and the second clamping assembly 200. The limiting guide piece can limit the first clamping assembly 100 and the second clamping assembly 200 to the same plane, and the test sample 500 is prevented from being bent due to dislocation. The limiting guide piece comprises a guide rod 600, a first sliding block 610 connected with the guide rod 600 is arranged on the first clamping assembly 100, and a second sliding block 620 connected with the guide rod 600 is arranged on the second clamping assembly 200. The first sliding block 610 is fixed on the side of the first clamping plate 101, and the second sliding block 620 is fixed on the side of the third clamping plate 201.
In the description of the present application, it is to be understood that the terminology used herein is for the purpose of description only and is not intended to be interpreted as indicating or implying relative importance or to imply that the number of technical features indicated is significant. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral combinations thereof; may be an electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, systems, and techniques have not been shown in detail in order not to obscure an understanding of this description.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.
Claims (8)
1. A foil tensile test sample clamping device, comprising:
the first clamping assembly (100) comprises a first clamping plate (101) and a second clamping plate (102), the first clamping plate (101) and the second clamping plate (102) enclose a clamping space, and the first clamping plate (101) and the second clamping plate (102) are connected through a first fastener;
the second clamping assembly (200) comprises a third clamping plate (201) and a fourth clamping plate (202), the third clamping plate (201) and the fourth clamping plate (202) enclose a clamping space, and the third clamping plate (201) and the fourth clamping plate (202) are connected through a second fastener; and the number of the first and second groups,
the yielding window comprises a first window (120) and a second window (220), wherein the first window (120) and the second window (220) are respectively arranged on the clamping plates on the same side of the first clamping assembly (100) and the second clamping assembly (200).
2. A foil tensile test specimen holding device according to claim 1, wherein a side of said first holding member (100) opposite to said second holding member (200) is provided with a first extension portion (300), a side of said second holding member (200) opposite to said first holding member (100) is provided with a second extension portion (400), said first extension portion (300) and said second extension portion (400) have the same length, and said first extension portion (300) and said second extension portion (400) are arranged in a staggered manner.
3. A sheet metal tensile test specimen holding apparatus according to claim 2, wherein said first extension portion (300) has a width half of that of said first holding assembly (100), said second extension portion (400) has a width half of that of said second holding assembly (200), and a contact surface where said first extension portion (300) and said second extension portion (400) contact is located on a centerline of said first holding assembly (100) and said second holding assembly (200).
4. A sample holding device for a tensile test of a metal sheet according to claim 2, wherein said first fastening member comprises a plurality of first bolts (110) distributed on both sides of said first window (120), a plurality of said first bolts (110) penetrate said first clamping plate (101) and said second clamping plate (102), said second fastening member comprises a plurality of second bolts (210) distributed on both sides of said second window (220), a plurality of said second bolts (210) penetrate said third clamping plate (201) and said fourth clamping plate (202).
5. The sample clamping device for the sheet metal tensile test according to claim 4, wherein the number of the first bolts (110) is three, the first extending portion (300) is provided with the first bolts (110) in a penetrating manner, and the second extending portion (400) is provided with the second bolts (210) in a penetrating manner.
6. A foil tensile test specimen holding apparatus according to any one of claims 1 to 3, wherein a spacing guide is further provided between the first holding assembly (100) and the second holding assembly (200), and the spacing guide is provided outside the first holding assembly (100) and the second holding assembly (200).
7. The sample holding device for the tensile test of the metal sheet as claimed in claim 6, wherein the limiting guide comprises a guide rod (600), the first holding assembly (100) is provided with a first sliding block (610) connected with the guide rod (600), and the second holding assembly (200) is provided with a second sliding block (620) connected with the guide rod (600).
8. A sample holding device for a tensile test of metal sheets according to claim 7, wherein said first sliding block (610) is fixed to the side of said first clamping plate (101), said second sliding block (620) is fixed to the side of said third clamping plate (201), and said first clamping plate (101) and said third clamping plate (201) are located in the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221540959.0U CN217688245U (en) | 2022-06-20 | 2022-06-20 | Clamping device for metal sheet tensile test sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221540959.0U CN217688245U (en) | 2022-06-20 | 2022-06-20 | Clamping device for metal sheet tensile test sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217688245U true CN217688245U (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221540959.0U Expired - Fee Related CN217688245U (en) | 2022-06-20 | 2022-06-20 | Clamping device for metal sheet tensile test sample |
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| CN (1) | CN217688245U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117723383A (en) * | 2024-02-16 | 2024-03-19 | 合肥工业大学 | Ultrathin plate preassembled type stretching clamping device and application method thereof |
-
2022
- 2022-06-20 CN CN202221540959.0U patent/CN217688245U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117723383A (en) * | 2024-02-16 | 2024-03-19 | 合肥工业大学 | Ultrathin plate preassembled type stretching clamping device and application method thereof |
| CN117723383B (en) * | 2024-02-16 | 2024-05-03 | 合肥工业大学 | Ultrathin plate preassembled type stretching clamping device and application method thereof |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20221028 |