CN203595631U - Centering clamping device for measuring percentage elongation after fracture - Google Patents
Centering clamping device for measuring percentage elongation after fracture Download PDFInfo
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- CN203595631U CN203595631U CN201320788130.7U CN201320788130U CN203595631U CN 203595631 U CN203595631 U CN 203595631U CN 201320788130 U CN201320788130 U CN 201320788130U CN 203595631 U CN203595631 U CN 203595631U
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- objective table
- fracture
- clamping device
- screw rod
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 11
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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Abstract
The utility model discloses a centering clamping device for measuring percentage elongation after fracture, which facilitates the accurate measurement of the percentage elongation after fracture of a tensile sample. The centering clamping device for measuring percentage elongation after fracture comprises a base, wherein a spiral rod is mounted on the base, and the two ends of the spiral rod and the base are in running fit; a first sample objective table and a second sample objective table are in threaded connection with the spiral rod, a first sample positioning structure is arranged on the first sample objective table, a second sample positioning structure is arranged on the second sample objective table, and a driving mechanism is connected with one end of the spiral rod; when the spiral rod rotates, the moving directions of the first sample objective table and the second sample objective table are opposite. The centering clamping device has the advantages as follows: two fractured samples can be aligned and tightened, and the sway of the samples is avoided when measurement is conducted, the working efficiency is improved and the accurate measurement of the percentage elongation after fracture is guaranteed; meanwhile, the testing data is accurate.
Description
Technical field
The utility model relate to a kind of tension test field application for measuring the centering clamping device of elongation after fracture.
Background technology
Elongation after fracture is mechanical performance index important in tension test, the mensuration of elongation after fracture is according to GB/T228 standard-required, the part of sample fracture is carefully connected and makes its axis together on same straight line, and therefore the centering of sample fracture part is extremely important.The method of measuring at present elongation after fracture is that the tensile sample incision position after breaking is docking together, left hand is held and is broken sample, right hand vernier caliper measurement, exists hand wobble to cause sample not on same straight line in measuring process, can directly cause that assay is inaccurate, data disperse.For the problems referred to above, by research determines to utilize discarded punctuating machine to carry out design improvement to it to specimen shape, measure the accurately problem of centering to solve elongation after fracture.
Utility model content
The utility model solve technical matters be to provide a kind of be convenient to Measurement accuracy tensile sample elongation after fracture for measuring the centering clamping device of elongation after fracture.
The utility model solves the technical scheme that its technical matters adopts: for measuring the centering clamping device of elongation after fracture, comprise pedestal, screw rod is installed on pedestal, two ends and the pedestal of screw rod are rotatably assorted, the first sample objective table and the second sample objective table have been threaded on screw rod, on the first sample objective table, be provided with the first sample location structure, on the second sample objective table, be provided with the second sample location structure, one end of screw rod is connected with driving mechanism, in the time that screw rod rotates, the moving direction of the first sample objective table is contrary with the moving direction of the second sample objective table.
Further: described driving mechanism is the rotating disk being arranged on screw rod.
Further: described the first sample location structure is first to break sample locating slot, described the second sample location structure is second to break sample locating slot.
The beneficial effects of the utility model are: can, by two sections of samples alignings fastening of having no progeny, in the time measuring, sample can not occur and rock by device of the present utility model, improve work efficiency, guarantee that elongation after fracture measurement is accurate, test figure is accurate.
Accompanying drawing explanation
Fig. 1 is of the present utility model for measuring the cut-open view of centering clamping device of elongation after fracture;
Fig. 2 is the vertical view of the centering clamping device for measuring elongation after fracture;
In figure, be labeled as: pedestal 1, the first sample objective table 2, the first is broken sample locating slot 3, the second and broken sample locating slot 4, the second sample objective tables 5, screw rod 6, rotating disk 7.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further illustrated.
As depicted in figs. 1 and 2, for measuring the centering clamping device of elongation after fracture, comprise pedestal 1, screw rod 6 is installed on pedestal 1, the two ends of screw rod 6 and pedestal 1 are rotatably assorted, the first sample objective table 2 and the second sample objective table 5 have been threaded on screw rod 6, on the first sample objective table 2, be provided with the first sample location structure, on the second sample objective table 5, be provided with the second sample location structure, one end of screw rod 6 is connected with driving mechanism, in the time that screw rod rotates, the moving direction of the first sample objective table 2 is contrary with the moving direction of the second sample objective table 5.
Above-mentioned driving mechanism is for driving screw rod 6 to rotate, and can be motor mechanism etc.For simplified structure convenient operation, described driving mechanism is the rotating disk 7 being arranged on screw rod 6.Can drive screw rod 6 to rotate by rotating rotating disk 7.Rotating disk 7 is that than the advantage of the electronic driving mechanism such as motor mechanism it is manually actuated, rotates and reverse flexible operation, can react in time for site specific, and not need energising, and applicability is strong.
The embodiment of above-mentioned the first sample location structure and the second sample location structure has multiple, and for example, sample location structure can be card article, by card article, sample is located.Also can be the structure shown in Fig. 1 and Fig. 2, described the first sample location structure be first to break sample locating slot 3, and described the second sample location structure is second to break sample locating slot 4.This relatively simple for structure, be convenient to processing and manufacturing, simultaneously very firm to the location of sample.First breaks shape that sample locating slot 3 and second breaks sample locating slot 4 and breaks the form fit of sample, thereby it is very firm to make to break the location of sample.This locating slot in use, only need be shelved sample therein.
Device of the present utility model in use, two sections of samples after breaking can be shelved on respectively on the first sample objective table 2 and the second sample objective table 5, and by corresponding sample location structure location, for example can be by the above-mentioned sample locating slot location of breaking, then by rotating drive mechanism, screw rod 6 is rotated, for example rotating rotating disk 7 can make screw rod 6 rotate, can impel like this first sample objective table 2 and the second sample objective table 5 mutually close, then the part of sample fracture is carefully connected and makes its axis together on same straight line, by driving mechanism, screw rod 6 is rotated again, impel two sample clampings, then measure elongation after fracture.
The utility model to break sample in measuring process, there will not be rock, shift phenomenon, elongation after fracture Data duplication, repeatability are good, result is accurate.
Claims (3)
1. for measuring the centering clamping device of elongation after fracture, it is characterized in that: comprise pedestal (1), screw rod (6) is installed on pedestal (1), the two ends of screw rod (6) and pedestal (1) are rotatably assorted, the first sample objective table (2) and the second sample objective table (5) have been threaded on screw rod (6), on the first sample objective table (2), be provided with the first sample location structure, on the second sample objective table (5), be provided with the second sample location structure, one end of screw rod (6) is connected with driving mechanism, in the time that screw rod rotates, the moving direction of the first sample objective table (2) is contrary with the moving direction of the second sample objective table (5).
2. as claimed in claim 1 for measuring the centering clamping device of elongation after fracture, it is characterized in that: described driving mechanism is for being arranged on the rotating disk (7) on screw rod (6).
3. as claimed in claim 1 or 2 for measuring the centering clamping device of elongation after fracture, it is characterized in that: described the first sample location structure is first to break sample locating slot (3), described the second sample location structure is second to break sample locating slot (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320788130.7U CN203595631U (en) | 2013-12-03 | 2013-12-03 | Centering clamping device for measuring percentage elongation after fracture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320788130.7U CN203595631U (en) | 2013-12-03 | 2013-12-03 | Centering clamping device for measuring percentage elongation after fracture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203595631U true CN203595631U (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320788130.7U Expired - Lifetime CN203595631U (en) | 2013-12-03 | 2013-12-03 | Centering clamping device for measuring percentage elongation after fracture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203595631U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181441A (en) * | 2015-10-12 | 2015-12-23 | 济南时代试金试验机有限公司 | Centring device for material tension sample |
-
2013
- 2013-12-03 CN CN201320788130.7U patent/CN203595631U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181441A (en) * | 2015-10-12 | 2015-12-23 | 济南时代试金试验机有限公司 | Centring device for material tension sample |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |
|
| CX01 | Expiry of patent term |