CN103926143A - Special clamp for tiny plate-like stretch and creep sample - Google Patents
Special clamp for tiny plate-like stretch and creep sample Download PDFInfo
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- CN103926143A CN103926143A CN201410185356.7A CN201410185356A CN103926143A CN 103926143 A CN103926143 A CN 103926143A CN 201410185356 A CN201410185356 A CN 201410185356A CN 103926143 A CN103926143 A CN 103926143A
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Abstract
The invention relates to a tool for testing the characteristics of a solid material by virtue of mechanical stress. For solving the problem that experimental results are easily affected because a tiny plate-like stretch and creep sample is too small in size, a standard clamp is not applicable, clamping is difficult to operate, the clamp structure and the clamping form are improperly designed and the like, the invention provides a special clamp for the tiny plate-like stretch and creep sample. The clamp comprises a clamp body and a sample retaining pin, wherein a sample fixing groove is formed in the clamp body; an open groove is formed in the sample fixing groove; the open groove has smaller width than the sample fixing groove; an angle formed between the open groove and the sample fixing groove is circular arc-shaped, and a circular arc-shaped sample suspending platform is formed. By adopting a platform-suspension clamping way as well as circular arc transition, the sample and the clamp can slide relative to each other, so that automatic regulation of a load line is realized, occurrence of centering deviation of the sample is avoided, the problem that the clamp causes adverse influences to the experimental results is solved, and the special clamp is simple in structure, stable and reliable in performance and convenient to machine and manufacture.
Description
Technical field
The present invention relates to a kind of instrument with mechanical stress test solid material characteristic, particularly a kind of minute plate stretching, creep sample special mould clamp.
Background technology
The tensile property of metal material and croop property test are the important performance indexes in metal material mechanics performance test, current testing equipment and test matched fixture are standard model, according to the dimensions of standard mechanics performance sample, prepare mechanical property sample.
But in engineering application and scientific research, often occur that the specimen size of preparation is far smaller than standard sample owing to being sampled the factor restrictions such as material self geomery, material singularity (as radioactivity).Mainly there is following problem in the small stretching of this class, creep sample: a. specimen size is too small when experimental test, and standard jig is inapplicable; B. operating difficulties is installed; C. because sample is small, so test load loaded line and sample center line be not parallel etc., problem is more outstanding, to test findings, can produce considerable influence.
The above problem existing in experimental test for solving this type of small stretching, creep sample, need to develop a kind of practical new special mould clamp that is suitable for.
Summary of the invention
For solving small stretching, creep sample is undersized, standard jig is inapplicable, the operating difficulties that is installed, the structure of jig and the improper easy problems such as test findings that affect of form design that are installed, the invention provides that a kind of minute plate stretches, creep sample special mould clamp.
This jig comprises jig body and sample fixed pin; In described jig body, have sample fixing, one end that sample fixing is led to jig body has open slot, and the width of described open slot is narrower than sample fixing, and the angle between open slot and sample fixing is circular arc, forms circular arc sample and hangs platform; In jig body, be also provided with fixed pin socket, by insert sample fixed pin in fixed pin socket, minute plate can be stretched, one end of creep sample is limited in sample fixing; One end that jig body is contrary with open slot has the threaded hole for being connected with testing machine, so that test load is acted on to sample.
One end of described sample fixed pin is provided with fixture for preferably, with the situation of guaranteeing that it there will not be accidental in experimental test.
The material of described jig body, sample fixed pin and fixture is preferably nickel-base alloy, to meet the testing requirements under hot environment.
The processing technology of described sample fixing and open slot is preferably electrosparking, to improve machining precision.
Minute plate of the present invention stretches, creep sample special mould clamp using method is as follows: get a pair of this jig, the minute plate stretching of shape and jig sample fixing and open slot adaptation, the two ends of creep sample are installed respectively in two jigs; The sample fixed pin of each jig is inserted to fixed pin socket, the two ends of minute plate stretching, creep sample are limited in respectively in the sample fixing of each jig; The threaded hole of each jig is connected with testing machine, and load test load, completes experimental test.
In the present invention, do not use traditional be threaded, be clamped and connected, pin hangs the modes that are installed such as connection, but the mode that is installed of having used platform to hang, and adopted arc transition, making between sample and jig can relative sliding, therefore realized automatic adjustment loaded line, avoided the generation of sample alignment deviation, solved jig test findings is produced to dysgenic problem.
Minute plate of the present invention stretches, creep sample special mould clamp is simple in structure, stable and reliable for performance, is convenient to processing and manufacturing; Solved small stretching, creep sample is undersized, the inapplicable problem of standard jig, is installed simple to operation, and can not produce harmful effect to test findings.
Accompanying drawing explanation
Fig. 1 minute plate of the present invention stretches, creep sample special mould clamp schematic diagram.
The state sketch that Fig. 2 minute plate stretches, creep sample is inserted special mould clamp of the present invention.
Reference numeral: 1. jig body, 2. sample fixed pin, 3. sample fixing, 4. open slot, 5. circular arc sample hangs platform, 6. fixed pin socket, 7. threaded hole, 8. fixture.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the present invention are described further.
Embodiment
Minute plate stretches, a creep sample special mould clamp, and this jig comprises jig body 1 and sample fixed pin 2; In described jig body 1, have sample fixing 3, one end that sample fixing 3 is led to jig body 1 has open slot 4, the width of described open slot 4 is narrower than sample fixing 3, and the angle that open slot 4 and sample fixing are 3 is circular arc, forms circular arc sample and hangs platform 5; In jig body 1, be also provided with fixed pin socket 6, by the interior insertion sample of fixed pin socket 6 fixed pin 2, minute plate can be stretched, one end of creep sample is limited in sample fixing 3; One end that jig body 1 is contrary with open slot 4 has the threaded hole 7 for being connected with testing machine, so that test load is acted on to sample.One end of described sample fixed pin 2 is provided with fixture 8; The material of described jig body 1, sample fixed pin 2 and fixture 8 is nickel-base alloy; Described sample fixing 3 and open slot 4 adopt electrosparking.
Through many group contrast test test proofs, this jig can be adjusted loaded line automatically, has avoided the generation of sample alignment deviation, and the degree of accuracy of test findings and precision are all comparatively good, are suitable for practical application.
Claims (4)
1. minute plate stretching, a creep sample special mould clamp, is characterized in that: this jig comprises jig body and sample fixed pin; In described jig body, have sample fixing, one end that sample fixing is led to jig body has open slot, and the width of described open slot is narrower than sample fixing, and the angle between open slot and sample fixing is circular arc, forms circular arc sample and hangs platform; In jig body, be also provided with fixed pin socket, by insert sample fixed pin in fixed pin socket, minute plate can be stretched, one end of creep sample is limited in sample fixing; One end that jig body is contrary with open slot has the threaded hole for being connected with testing machine, so that test load is acted on to sample.
2. minute plate stretching as claimed in claim 1, creep sample special mould clamp, is characterized in that: one end of described sample fixed pin is provided with fixture.
3. minute plate stretching as claimed in claim 1, creep sample special mould clamp, is characterized in that: the material of described jig body, sample fixed pin and fixture is nickel-base alloy.
4. minute plate stretching as claimed in claim 1, creep sample special mould clamp, is characterized in that: the processing technology of described sample fixing and open slot is electrosparking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410185356.7A CN103926143A (en) | 2014-05-04 | 2014-05-04 | Special clamp for tiny plate-like stretch and creep sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410185356.7A CN103926143A (en) | 2014-05-04 | 2014-05-04 | Special clamp for tiny plate-like stretch and creep sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103926143A true CN103926143A (en) | 2014-07-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410185356.7A Pending CN103926143A (en) | 2014-05-04 | 2014-05-04 | Special clamp for tiny plate-like stretch and creep sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103926143A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769423A (en) * | 2016-11-24 | 2017-05-31 | 中国航空工业集团公司北京航空材料研究院 | One kind is applied to plate tensile sample high-temperature and durable creeping test fixture |
| CN107064571A (en) * | 2017-04-10 | 2017-08-18 | 河南科技大学 | A kind of electric installation and constant temperature electromigration experimental provision of convenient handling test model |
| CN107560934A (en) * | 2017-08-28 | 2018-01-09 | 中国原子能科学研究院 | A kind of small-size flaky sample stretching clamp suitable for manipulator handling |
| CN109827839A (en) * | 2019-02-14 | 2019-05-31 | 南京航空航天大学 | Ceramic matric composite inside strands Mechanics Performance Testing device and test method |
| CN110044720A (en) * | 2019-03-11 | 2019-07-23 | 中国航发北京航空材料研究院 | A kind of multi-functional clamp suitable for nonstandard small sample creep performance test |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2656992Y (en) * | 2003-11-18 | 2004-11-17 | 宝钢集团上海浦东钢铁有限公司 | Stretching testing machine antislide test clamping head |
| CN1619286A (en) * | 2003-11-17 | 2005-05-25 | 中国科学院理化技术研究所 | Stretching clamping device used for nonmetal material stretching mechanics performance testing |
| CN201795955U (en) * | 2010-08-24 | 2011-04-13 | 宁波圣菲机械制造有限公司 | Clamp for metal tension test |
| CN103018101A (en) * | 2012-12-20 | 2013-04-03 | 南京航空航天大学 | Clamp for high temperature tensile test of ceramic matrix composite material |
| CN103674693A (en) * | 2013-12-08 | 2014-03-26 | 上海华龙测试仪器股份有限公司 | Clamping die for thin-plate high-temperature tensile test |
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2014
- 2014-05-04 CN CN201410185356.7A patent/CN103926143A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1619286A (en) * | 2003-11-17 | 2005-05-25 | 中国科学院理化技术研究所 | Stretching clamping device used for nonmetal material stretching mechanics performance testing |
| CN2656992Y (en) * | 2003-11-18 | 2004-11-17 | 宝钢集团上海浦东钢铁有限公司 | Stretching testing machine antislide test clamping head |
| CN201795955U (en) * | 2010-08-24 | 2011-04-13 | 宁波圣菲机械制造有限公司 | Clamp for metal tension test |
| CN103018101A (en) * | 2012-12-20 | 2013-04-03 | 南京航空航天大学 | Clamp for high temperature tensile test of ceramic matrix composite material |
| CN103674693A (en) * | 2013-12-08 | 2014-03-26 | 上海华龙测试仪器股份有限公司 | Clamping die for thin-plate high-temperature tensile test |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106769423A (en) * | 2016-11-24 | 2017-05-31 | 中国航空工业集团公司北京航空材料研究院 | One kind is applied to plate tensile sample high-temperature and durable creeping test fixture |
| CN106769423B (en) * | 2016-11-24 | 2019-05-21 | 中国航空工业集团公司北京航空材料研究院 | One kind being suitable for plate tensile sample high-temperature and durable creeping test fixture |
| CN107064571A (en) * | 2017-04-10 | 2017-08-18 | 河南科技大学 | A kind of electric installation and constant temperature electromigration experimental provision of convenient handling test model |
| CN107064571B (en) * | 2017-04-10 | 2023-03-14 | 河南科技大学 | Conductive device convenient for loading and unloading test sample and constant-temperature electromigration experimental device |
| CN107560934A (en) * | 2017-08-28 | 2018-01-09 | 中国原子能科学研究院 | A kind of small-size flaky sample stretching clamp suitable for manipulator handling |
| CN109827839A (en) * | 2019-02-14 | 2019-05-31 | 南京航空航天大学 | Ceramic matric composite inside strands Mechanics Performance Testing device and test method |
| CN110044720A (en) * | 2019-03-11 | 2019-07-23 | 中国航发北京航空材料研究院 | A kind of multi-functional clamp suitable for nonstandard small sample creep performance test |
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Application publication date: 20140716 |
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| RJ01 | Rejection of invention patent application after publication |