CN216208124U - Measuring device for elongation after fracture of tensile sample - Google Patents
Measuring device for elongation after fracture of tensile sample Download PDFInfo
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- CN216208124U CN216208124U CN202122191851.7U CN202122191851U CN216208124U CN 216208124 U CN216208124 U CN 216208124U CN 202122191851 U CN202122191851 U CN 202122191851U CN 216208124 U CN216208124 U CN 216208124U
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- 238000005259 measurement Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 238000009864 tensile test Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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Abstract
The utility model discloses a device for measuring the elongation of a tensile sample after fracture, which comprises a base, a bracket, a sliding support plate, an adjusting rod and a measuring caliper, wherein two sides of the base are respectively and fixedly provided with a fixed support plate; the bracket is used for fixing the position of a fracture of the tensile sample after the tensile sample is broken and aligning the fracture of the tensile sample, and is movably arranged in a sliding groove arranged on the base; one end of the sliding support plate, which is tightly propped against the fixed support plate relative to the tensile sample, is arranged in a sliding groove arranged on the base in a sliding fit manner; the adjusting rod penetrates through the fixed supporting plate to abut against the sliding supporting plate, the measuring caliper is connected with the fixed supporting plate, and bayonets arranged on the measuring caliper correspond to original gauge length lines of the tensile sample respectively. The utility model can avoid the position movement of the tensile sample in the splicing process, so that the fractures are tightly contacted together, and simultaneously, the fractures are ensured to be completely aligned, thereby ensuring the accuracy of the measurement result.
Description
Technical Field
The utility model relates to the technical field of mechanical property detection, in particular to a device for measuring elongation after fracture of a tensile sample.
Background
The elongation after fracture is an important index for evaluating the plasticity of the material in a tensile test. And when the sample is broken, splicing the two broken sample together again, measuring the length value of the original gauge length after being elongated, and calculating the elongation after breaking through a formula. Due to the lack of special tools, the current tensile test is basically performed by directly splicing the samples together by manual operation, but the two samples spliced together by the manual splicing mode are in a free placing state and can move when being slightly touched in the measuring process, so that the position of a fracture is staggered, the operation is very inconvenient, the two samples spliced together cannot be tightly spliced together, the fracture is difficult to avoid a gap, and the measuring result is inaccurate; meanwhile, the tensile fracture is often an inclined plane, so that the two samples are difficult to ensure to be completely aligned during splicing, and the measurement result may be inaccurate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problems to a certain extent, and provides a device for measuring the elongation of a tensile sample after fracture, which can avoid the position movement of the tensile sample in the splicing process, so that fractures are tightly contacted together, and can ensure that the fractures are completely aligned, thereby ensuring the accuracy of a measurement result.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the device for measuring the elongation after fracture of the tensile sample comprises a base, a support, a sliding support plate, an adjusting rod and a measuring caliper, wherein fixed support plates are fixedly assembled on two sides of the base respectively; the bracket is used for fixing the position of a fracture of the tensile sample after the tensile sample is broken and aligning the fracture of the tensile sample, and is movably arranged in a sliding groove arranged on the base; one end of the sliding support plate, which is tightly propped against the fixed support plate relative to the tensile sample, is arranged in a sliding groove arranged on the base in a sliding fit manner; the adjusting rod penetrates through the fixed supporting plate to abut against the sliding supporting plate, and the sliding supporting plate drives the support fixed with the tensile sample to move forwards through the adjusting rod, so that the fracture of the tensile sample after the two sections of tensile samples are broken is tightly propped; the measuring caliper is connected with the fixed supporting plate, and bayonets arranged on the measuring caliper respectively correspond to original gauge length lines of the tensile sample.
Preferably, the fixed support plate comprises a left fixed support plate and a right fixed support plate, the left fixed support plate and the right fixed support plate are respectively fixed on two sides of the base through the arranged first screws, and the support and the sliding support plate are limited in the sliding groove formed in the base.
Preferably, the right fixed supporting plate is provided with a threaded through hole which is in threaded assembly connection with the adjusting rod.
Preferably, the support is provided with at least two groups and is respectively used for fixing the position of the sample after the breaking.
Preferably, a slit is arranged at a position, opposite to the sliding groove, of the side face of the base, a second screw arranged outside the base penetrates through the slit and is connected with the support, and the support provided with the tensile sample is fixed on the base through the second screw respectively.
Preferably, the measuring caliper comprises a support rod, a left bayonet rod and a right bayonet rod, one end of the support rod is hinged to the left fixed support plate through a hinge, the other end of the support rod is sleeved with the left bayonet rod, and the other end of the left bayonet rod is sleeved with the right bayonet rod.
Preferably, left bayonet socket pole and right bayonet socket pole are equipped with left bayonet socket and right bayonet socket respectively towards the base to through adjusting the relative position of left bayonet socket pole and right bayonet socket pole, make left bayonet socket and right bayonet socket aim at the original gauge length line of tensile sample.
Preferably, the outer parts of the left bayonet rod and the right bayonet rod are respectively provided with a third screw for fixing the relative position of the left bayonet rod and the right bayonet rod.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the sliding support plate drives the bracket fixed with the tensile sample to move relatively through the adjusting rod, so that the two tensile samples which are cut off by pulling are quickly spliced together while the position of the tensile sample is ensured to be stable, and the tensile sample is restrained, so that the measurement is convenient; meanwhile, after the two samples which are pulled apart are spliced, the device can apply certain pressure on the two ends to enable the fractures to be tightly contacted together, and meanwhile, the fractures can be ensured to be completely aligned, so that the accuracy of a measuring result is ensured; furthermore, the self-contained measuring caliper does not need measuring tools such as a handheld vernier caliper and the like, and is simpler and more convenient to operate.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
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 description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
In the drawings:
FIG. 1 is an exploded view of the device for measuring elongation after fracture of a tensile specimen according to the present invention;
FIG. 2 is an assembly diagram of the device for measuring elongation after fracture of a tensile test specimen according to the present invention;
FIG. 3 is a side view of the apparatus for measuring elongation after fracture of a tensile specimen according to the present invention;
fig. 4 is a schematic view of the structure of the stent of the present invention.
Reference numerals: 1-a base; 2-a scaffold; 3-sliding the supporting plate; 4-adjusting the rod; 5-measuring the caliper; 501-supporting rods; 502-left bayonet rod; 5021, a left bayonet; 503-right bayonet rod; 5031-right bayonet; 6-stretching the sample; 7-left fixed support plate; 8-right fixed support plate; 9-a first screw; 10-a second screw; 11-a hinge; 12-third screw.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings. In the following description, it is to be understood that the orientations and positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "lateral", "vertical", "horizontal", "top", "bottom", "inner", "outer", "leading", "trailing", and the like are configured and operated in specific orientations based on the orientations and positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate that the device or element referred to must have a specific orientation, and thus, are not to be construed as limiting the present invention.
It is also noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," "disposed," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or intervening elements may also be present. The terms "first", "second", "third", etc. are only for convenience in describing the present technical solution, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", etc. may explicitly or implicitly include one or more of such features. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the utility model. It will be apparent, however, to one skilled in the art that the present invention may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.
As shown in fig. 1-4, the present invention provides a device for measuring elongation after fracture of a tensile sample, comprising a base 1, a bracket 2, a sliding support plate 3, an adjusting rod 4, and a measuring caliper 5, wherein two sides of the base 1 are respectively and fixedly assembled with a fixed support plate; the support 2 is used for fixing the position of a fracture of the tensile sample 6 after the tensile sample is broken and aligning the fracture, and the support 2 is movably arranged in a sliding groove arranged on the base 1; the sliding support plate 3 is arranged in a sliding groove arranged on the base 1 in a sliding fit manner relative to one end of the tensile sample 6 which is tightly propped against the fixed support plate; the adjusting rod 4 penetrates through the fixed supporting plate to abut against the sliding supporting plate 3, and the sliding supporting plate 3 drives the bracket 2 fixed with the tensile sample 6 to move forwards through the adjusting rod 4, so that the fracture of the tensile sample 6 after the two sections of tensile samples are broken is tightly propped; the measuring caliper 5 is connected with the fixed supporting plate, and bayonets arranged on the measuring caliper respectively correspond to original gauge length lines of the tensile test sample 6.
In the embodiment, the sliding support plate 3 drives the bracket 2 fixed with the tensile sample 6 to move relatively through the adjusting rod 4, so that the two tensile samples 6 which are cut off by pulling are quickly spliced together while the position of the tensile sample 6 is ensured to be stable, and the two tensile samples 6 are restrained, thereby facilitating measurement; meanwhile, after the two samples which are pulled apart are spliced, the device can apply certain pressure on the two ends to enable the fractures to be tightly contacted together, and meanwhile, the fractures can be ensured to be completely aligned, so that the accuracy of a measuring result is ensured; furthermore, the self-contained measuring caliper 5 does not need measuring tools such as a handheld vernier caliper and the like, and the operation is simpler and more convenient.
The fixed supporting plate comprises a left fixed supporting plate 7 and a right fixed supporting plate 8, the left fixed supporting plate 7 and the right fixed supporting plate 8 are respectively fixed on two sides of the base 1 through arranged first screws 9, and the supporting and sliding supporting plate 3 is limited in a sliding groove arranged in the base 1;
specifically, the right fixed supporting plate 8 is provided with a thread through hole which is in threaded assembly connection with the adjusting rod 4, so that the adjusting rod 4 pushes the sliding supporting plate 3 to move in a thread transmission mode, and assembly is facilitated.
The supports 2 are at least provided with two groups and are respectively used for fixing the positions of the samples after the tensile test, and the number of the supports 2 is set according to the length of the tensile test sample 6, so that the stability of the positions of the samples is improved.
Wherein, the position that the base 1 side just right the spout is equipped with the slit, and the second screw 10 that base 1 outside set up passes the slit and is connected with support 2, will place the support 2 of tensile sample 6 respectively through second screw 10 and fix at base 1, so after the concatenation of tensile sample 6, rethread second screw 10 fixed support 2's position to ensure the stability of the position after the concatenation of tensile sample 6.
The measuring caliper 5 comprises a support rod 501, a left bayonet rod 502 and a right bayonet rod 503, wherein one end of the support rod 501 is hinged to the left fixed support plate 7 through a hinge 11, the other end of the support rod 501 is sleeved with the left bayonet rod 502, and the other end of the left bayonet rod 502 is sleeved with the right bayonet rod 503, so that the support rod 501, the left bayonet rod 502 and the right bayonet rod 503 can slide mutually;
specifically, the left bayonet rod 502 and the right bayonet rod 503 are respectively provided with a left bayonet 5021 and a right bayonet 5031 facing the base 1, and the left bayonet 5021 and the right bayonet 5031 are aligned to an original gauge length line of the tensile sample 6 by adjusting the relative positions of the left bayonet rod 502 and the right bayonet rod 503, so that a measuring tool such as a vernier caliper is not required to be held through the left bayonet 5021 and the right bayonet 5031, and the operation is simpler and more convenient;
meanwhile, the outer portions of the left bayonet rod 502 and the right bayonet rod 503 are respectively provided with a third screw 12 for fixing the relative position of the left bayonet rod 502 and the right bayonet rod 503, so that the relative position between the left bayonet rod 502 and the right bayonet rod 503 can be conveniently adjusted through the third screw 12.
The working principle is as follows: selecting a proper bracket 2 according to the shape of the tensile sample 6 after being pulled off, lifting up the measuring caliper 5, placing the tensile sample 6 after being pulled off on the two brackets 2, keeping the fracture of the tensile sample 6 after being pulled off in an aligned state, and then rotating the adjusting rod 4 to enable the sliding support plate 3 to move leftwards so as to tightly push the tensile sample 61 after being pulled off. Then, the measuring caliper 5 is put down, the left bayonet rod 502 is slid to align the bayonet with the original gauge length line on the left side of the stretch sample 61 after being pulled off, the fixing screw is screwed on the left bayonet rod, and finally, the right bayonet rod 503 is slid to align the original gauge length line on the right side of the stretch sample 6 after being pulled off, the third screw 12 on the right bayonet rod is screwed on the original gauge length line, the length of the gauge length after being pulled off of the stretch sample 6 after being pulled off can be read, and the elongation after being pulled off can be calculated.
It is to be understood that the foregoing examples, while indicating the preferred embodiments of the utility model, are given by way of illustration and description, and are not to be construed as limiting the scope of the utility model; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (8)
1. A device for measuring elongation after fracture of a tensile specimen is characterized by comprising:
the device comprises a base, wherein fixed supporting plates are fixedly assembled on two sides of the base respectively;
the support is used for fixing the position of a fracture of the tensile sample after the tensile sample is broken and aligning the fracture of the tensile sample, and the support is movably arranged in a sliding groove arranged on the base;
the sliding support plate is arranged in a sliding groove arranged on the base in a sliding fit manner relative to one end of the tensile sample abutting against the fixed support plate;
the adjusting rod penetrates through the fixed supporting plate to abut against the sliding supporting plate, and the sliding supporting plate drives the bracket fixed with the tensile sample to move forwards through the adjusting rod, so that the fracture of the tensile sample after the two sections of tensile samples are broken is tightly propped;
and the measuring caliper is connected with the fixed supporting plate, and bayonets arranged on the measuring caliper respectively correspond to the original gauge length lines of the tensile sample.
2. The apparatus for measuring elongation after fracture of a tensile specimen according to claim 1, characterized in that: the fixed support plate comprises a left fixed support plate and a right fixed support plate, the left fixed support plate and the right fixed support plate are respectively fixed on two sides of the base through the arranged first screws, and the support and the sliding support plate are limited in the sliding groove formed in the base.
3. The apparatus for measuring elongation after fracture of a tensile specimen according to claim 2, characterized in that: and the right fixed supporting plate is provided with a threaded through hole which is assembled and connected with the adjusting rod through threads.
4. The apparatus for measuring elongation after fracture of a tensile specimen according to claim 1, characterized in that: the support is provided with at least two groups and is respectively used for fixing the position of the sample after the sample is pulled off.
5. The apparatus for measuring elongation after fracture of a tensile specimen according to claim 4, characterized in that: and a slit is arranged at the position, which is opposite to the sliding groove, of the side surface of the base, a second screw arranged outside the base penetrates through the slit and is connected with the support, and the support provided with the tensile sample is fixed on the base through the second screw respectively.
6. The apparatus for measuring elongation after fracture of a tensile specimen according to claim 1, characterized in that: the measuring caliper comprises a support rod, a left bayonet rod and a right bayonet rod, one end of the support rod is hinged to the left fixed support plate through a hinge, the other end of the support rod is sleeved with the left bayonet rod, and the other end of the left bayonet rod is sleeved with the right bayonet rod.
7. The apparatus for measuring elongation after fracture of a tensile specimen according to claim 6, characterized in that: left bayonet socket pole and right bayonet socket pole are equipped with left bayonet socket and right bayonet socket respectively towards the base to through the relative position of adjusting left bayonet socket pole and right bayonet socket pole, make left bayonet socket and right bayonet socket aim at the original gauge length line of tensile sample.
8. The apparatus for measuring elongation after fracture of a tensile specimen according to claim 7, characterized in that: and third screws for fixing the relative positions of the left bayonet rod and the right bayonet rod are respectively arranged outside the left bayonet rod and the right bayonet rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122191851.7U CN216208124U (en) | 2021-09-10 | 2021-09-10 | Measuring device for elongation after fracture of tensile sample |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122191851.7U CN216208124U (en) | 2021-09-10 | 2021-09-10 | Measuring device for elongation after fracture of tensile sample |
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| CN216208124U true CN216208124U (en) | 2022-04-05 |
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| CN202122191851.7U Active CN216208124U (en) | 2021-09-10 | 2021-09-10 | Measuring device for elongation after fracture of tensile sample |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116202890A (en) * | 2023-05-05 | 2023-06-02 | 山东路达试验仪器有限公司 | Intelligent measuring system and method for elongation of steel bar based on machine vision |
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2021
- 2021-09-10 CN CN202122191851.7U patent/CN216208124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116202890A (en) * | 2023-05-05 | 2023-06-02 | 山东路达试验仪器有限公司 | Intelligent measuring system and method for elongation of steel bar based on machine vision |
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Address after: No. 58 Jinshui West Road, Ningxiang High tech Industrial Park, Changsha City, Hunan Province, 410604 Patentee after: Hunan Huarui Technology Group Co.,Ltd. Country or region after: Zhong Guo Address before: No. 40601-40610, Zhongchuang space, 4 / F, comprehensive building, science and Technology Industrial Park, Hunan University, No. 001, Jinzhou North Road, Ningxiang high tech Industrial Park, Changsha City, Hunan Province, 410600 Patentee before: Hunan Huarui Technology Group Co.,Ltd. Country or region before: Zhong Guo |