CN205067220U - High -speed anchor clamps for tensile test - Google Patents
High -speed anchor clamps for tensile test Download PDFInfo
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- CN205067220U CN205067220U CN201520804026.1U CN201520804026U CN205067220U CN 205067220 U CN205067220 U CN 205067220U CN 201520804026 U CN201520804026 U CN 201520804026U CN 205067220 U CN205067220 U CN 205067220U
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- anchor clamps
- fixture
- speed
- tensile test
- sample
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Abstract
The utility model provides a high -speed anchor clamps for tensile test, belongs to tensile testing equipment technical field. Include lower anchor clamps, go up anchor clamps, sliding shaft and lug, descend anchor clamps to pass through the threaded connection sliding shaft, last anchor clamps pass through the lug and are connected with the sliding shaft. The advantage lies in: optimization through anchor clamps improves, has improved the experimental efficiency and the precision of data.
Description
Technical field
The utility model belongs to tensile test apparatus technical field, particularly a kind of high speed tensile test fixture.Be specially adapted to the Optimal improvements of the high speed tensile test machine specimen holder of servo hydraulic control system.
Background technology
High speed tensile test machine refers to tensile test apparatus at a high speed, what present high-speed stretch Material Testing Machine was common is all by hydraulic-driven, the speed that high-speed stretch material test function reaches is up to 5-20m/s, the quick loading mode of high-speed tester (HST), determine the loading structure feature of testing machine, because any object is reach a certain speed zero all to need a time course from initial velocity, therefore sample will start loading and can only indirectly realize under a certain setting speed.
The method of clamping of current high-speed stretch sample mainly contains two kinds: one is that sample lower end is fixed, and sample upper end is unsettled, and upper fixture runs when reaching the speed of setting and clamps sample suddenly, is broken by sample; Another is that sample lower end is fixed, and test upper end is by upper clamp, and then impact damper runs when reaching the speed of setting and clashes into upper fixture, is broken by sample.Two kinds of method of clamping are all that sample upper end-fixture is in vacant state, and sample is meeting concuss when being subject to load, affects the collection of test figure, thus affects the accuracy of test findings.
Summary of the invention
The purpose of this utility model is to provide a kind of high speed tensile test fixture, when solving existing equipment high-speed stretch DATA REASONING, because the problem of defect appears in concuss.By the Optimal improvements of fixture, improve the precision of test figure.
A kind of high speed tensile test fixture, comprises lower clamp 1, upper fixture 2, sliding axle 5 and lug 6; Lower clamp 1 is threaded connection sliding axle 5, and upper fixture 2 is connected with sliding axle 5 by lug 6.
Sliding axle 5 is two, is parallel to each other.
Upper fixture 2 can freely up and down slide relative to sliding axle 5.The precision of upper lower clamp right alignment can be improved by the connection of sliding axle 5, thus ensure that sample is in best single tension state when stretching; Upper fixture 2 is connected with sliding axle 5 by lug 6, avoids sample upper end-fixture to be in vacant state, slows down concuss in stretching stand under load process.
The utility model has the advantage of: when which solves existing equipment high-speed stretch DATA REASONING, sample upper end-fixture is in vacant state, the defect of sample meeting concuss when being subject to load, by the Optimal improvements of fixture, improves the efficiency of test and the precision of data.
Accompanying drawing explanation
Fig. 1 is the structure principle chart before the utility model improves.Wherein, lower clamp 1, upper fixture 2.
Fig. 2 is structure principle chart of the present utility model.Wherein, lower clamp 1, upper fixture 2, sliding axle 5, lug 6.
Embodiment
Embodiment 1
A kind of high speed tensile test fixture, comprises lower clamp 1, upper fixture 2, sliding axle 5 and lug 6; Lower clamp 1 is threaded connection sliding axle 5, and upper fixture 2 is connected with sliding axle 5 by lug 6.
Sliding axle 5 is two, is parallel to each other.
Upper fixture 2 can freely up and down slide relative to sliding axle 5.The precision of upper lower clamp right alignment can be improved by the connection of sliding axle 5, thus ensure that sample is in best single tension state when stretching; Upper fixture 2 is connected with sliding axle 5 by lug 6, avoids sample upper end-fixture to be in vacant state, slows down concuss in stretching stand under load process.
By the plate of 1.0mm thickness, gauge length length is become to be 10mm with wire cut electric discharge machine Linear cut, parallel-segment is wide is the high-speed stretch sample of 4mm, by sample edge sand paper that sanding burr is clean, with alcohol, specimen surface is cleaned up and drying, carry out speckle mark in gauge length horizontal survey section, under sample, gripping section carries out force snesor strain gauge adhesion, and is connected by foil gauge data line.Be clamped on lower clamp by sample lower end, carry out the startup of high speed tensile test machine, and carry out the preheating of equipment, each parameter of adjustment equipment, arranging tensile strain speed is 500/s.Turn on high-speed camera head and intense light source lamp, by high-speed camera alignment lens gauge length section speckle regions, prepare to carry out online strain measurement work.After checking that all work are ready, press start button and carry out stretching measurement and acquisition test data.When which solves existing equipment high-speed stretch DATA REASONING, sample upper end-fixture is in vacant state, and the defect of sample meeting concuss when being subject to load, by the Optimal improvements of fixture, improves the efficiency of test and the precision of data.
Claims (2)
1. a high speed tensile test fixture, is characterized in that, comprises lower clamp (1), upper fixture (2), sliding axle (5) and lug (6); Lower clamp (1) is threaded connection sliding axle (5), and upper fixture (2) is connected with sliding axle (5) by lug (6).
2. fixture according to claim 1, is characterized in that, sliding axle (5) is two, is parallel to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804026.1U CN205067220U (en) | 2015-10-16 | 2015-10-16 | High -speed anchor clamps for tensile test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520804026.1U CN205067220U (en) | 2015-10-16 | 2015-10-16 | High -speed anchor clamps for tensile test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205067220U true CN205067220U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520804026.1U Active CN205067220U (en) | 2015-10-16 | 2015-10-16 | High -speed anchor clamps for tensile test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205067220U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842059A (en) * | 2016-05-19 | 2016-08-10 | 吉林大学 | Mechanical property test auxiliary clamp for corn stalks and pedicel |
| CN108593429A (en) * | 2018-06-21 | 2018-09-28 | 武汉钢铁有限公司 | Material high-speed stretch stress-strain test device and method |
-
2015
- 2015-10-16 CN CN201520804026.1U patent/CN205067220U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842059A (en) * | 2016-05-19 | 2016-08-10 | 吉林大学 | Mechanical property test auxiliary clamp for corn stalks and pedicel |
| CN105842059B (en) * | 2016-05-19 | 2018-06-22 | 吉林大学 | A kind of maize straw and fringe handle mechanical property test auxiliary clamp |
| CN108593429A (en) * | 2018-06-21 | 2018-09-28 | 武汉钢铁有限公司 | Material high-speed stretch stress-strain test device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee after: Shougang Group Co. Ltd. Address before: 100041 Shijingshan Road, Shijingshan District, Shijingshan District, Beijing Patentee before: Capital Iron & Steel General Company |