CN102928288A - Clamp for tension test - Google Patents

Clamp for tension test Download PDF

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Publication number
CN102928288A
CN102928288A CN2012104219983A CN201210421998A CN102928288A CN 102928288 A CN102928288 A CN 102928288A CN 2012104219983 A CN2012104219983 A CN 2012104219983A CN 201210421998 A CN201210421998 A CN 201210421998A CN 102928288 A CN102928288 A CN 102928288A
Authority
CN
China
Prior art keywords
clamping plate
clamp
plate
test
bolt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN2012104219983A
Other languages
Chinese (zh)
Other versions
CN102928288B (en
Inventor
文华
张玲玲
雷挺
苏有文
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Southwest Jiaotong University
Southwest University of Science and Technology
Original Assignee
Southwest University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Southwest University of Science and Technology filed Critical Southwest University of Science and Technology
Priority to CN201210421998.3A priority Critical patent/CN102928288B/en
Publication of CN102928288A publication Critical patent/CN102928288A/en
Application granted granted Critical
Publication of CN102928288B publication Critical patent/CN102928288B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention provides a technical scheme of a clamp for a tension test. The clamp for the tension test comprises a primary clamping plate, an auxiliary clamping plate and a cushion block, a panel bolt hole is arranged in the lower portion of the primary clamping plate, the primary clamping plate, the auxiliary clamping plate and the cushion block are connected through a fixed bolt, the auxiliary clamping plate can slide on the fixed bolt, the primary clamping plate is provided with a first limit bolt, and the cushion block is provided with a second limit bolt. The clamp for the tension test is suitable for a test piece which is smooth in surface and irregular in shape, wherein large self-locking force cannot be exerted on the surface of the test piece perpendicular to the clamp. The clamp for the tension test solves the problem that the end of the test piece is damaged due to improvement of friction through increase of self-locking force and unmatched shapes.

Description

A kind of tensile test fixture
Technical field
What the present invention relates to is a kind of locking fixture, especially a kind of tensile test fixture.
Background technology
In the prior art, known technology is: the fixing main dual mode that passes through of the test specimen of at present tension test and anchor clamps, and one for to apply self-lock force by anchor clamps, and the friction between dependence anchor clamps and the test specimen is test specimen fixedly; Two for making test piece end the shape of coincideing with anchor clamps with fixing test specimen.If tensile test fixture clamps test piece end by the friction force of the sawtooth generation of self-lock force and fixturing surface, then the length of sample there is certain requirement so that clamping is stable.And, may test piece end be destroyed owing to apply excessive self-lock force, can't record the real tensile strength of test specimen.As adopt anchor clamps to block the method for test piece end, then the size and dimension of test specimen there is certain specific requirement, and the standard shape of test specimen is processed time and effort consuming.Existing utility model tensile test fixture has following several: patent name is the tensile test fixture (patent No.: CN200720300540.7), this sleeve clamp i.e. chuck that blocks coupon of boss by jaw carries out tension test, but the chuck of coupon need be processed into the shape corresponding with the jaw boss.Tensile test fixture (the patent No.: CN200620022944.X) that also has a kind of patent a kind of fragility non-standard sample by name, it is that a top is cylindrical bar that these anchor clamps require clip designs, the bottom is truncated cone-shaped, to test specimen in irregular shape and inapplicable, this is the existing weak point of prior art.
Summary of the invention
Purpose of the present invention, be exactly for the existing deficiency of prior art, and provide a kind of technical scheme of tensile test fixture, this scheme is applicable to the tensile test fixture that smooth surface and vertical chucking surface should not apply larger self-lock force, test specimen in irregular shape, solve shape and do not mated, relied on the problem that increases self-lock force raising friction and test piece end is destroyed.
This programme is achieved by the following technical measures: a kind of tensile test fixture, include bottom plate, auxiliary splint and cushion block, and the bottom plate bottom is provided with the panel bolts hole; Bottom plate, auxiliary splint, cushion block connect by set bolt; Auxiliary splint can slide at set bolt; Bottom plate is provided with the first caging bolt; Cushion block is provided with the second caging bolt.
Preferred as this programme: the inboard of bottom plate and auxiliary splint is provided with draw-in groove, and draw-in groove is embedded with spring.
Concrete fixing can be by making the end of tensile test specimen the form of enlarged footing, and by the bolt of rotation cushion block, the aperture of capable of regulating two clamping plates utilizes the top panel of clamping plate to block the test piece end enlarged footing.
The beneficial effect of this programme can be learnt according to the narration to such scheme, because major and minor clamping plate clamping test pieces in this scheme, wherein bottom plate is bolted on testing a machine by the panel bolts hole, auxiliary splint reaches with the cushion block of auxiliary splint contact and is connected with bottom plate by two set bolts in addition, the bolt sleeve that connects major and minor clamping plate has spring, can utilize the elastic force of spring with major and minor clamping plate separately.When doing tension test, the test specimen two ends can be individually fixed in anchor clamps.When doing tension test, only need assurance test piece end enlarged footing fully to contact with the clamping plate end face and get final product, its shape be there is no specific requirement.
This shows, the present invention compared with prior art, range of application is wider, and clamping test pieces without damage, without specific requirement, is had substantive distinguishing features and progress to Specimen Shape, the beneficial effect of its enforcement also is apparent.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention.
Fig. 2 is the vertical view of Fig. 1.
Among the figure, 1 is bottom plate, and 2 is auxiliary splint, and 3 is cushion block, and 4 is the second caging bolt, and 5 is spring, and 6 is the first caging bolt, and 7 is the panel bolts hole, and 8 is set bolt.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by an embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
Can find out that by accompanying drawing the bottom plate bottom of this programme is provided with the panel bolts hole; Bottom plate, auxiliary splint, cushion block connect by set bolt; Auxiliary splint can slide at set bolt; Bottom plate is provided with the first caging bolt; Cushion block is provided with the second caging bolt.The inboard of bottom plate and auxiliary splint is provided with draw-in groove, and draw-in groove is embedded with spring.
In specific operation process, at first with test fixture by the panel bolts hole be bolted to test a machine on, the enlarged footing of test specimen is put into bottom plate and the space below the auxiliary splint upper panel, can regulate auxiliary splint and draw close to bottom plate by rotating the second caging bolt, finally make the aperture of bottom plate and auxiliary splint reach the requirement of experiment value; Then regulate the first caging bolt and make it be close to auxiliary splint, can guarantee that in experimentation, the aperture of major and minor clamping plate can not change.
The results showed, the tensile test fixture of this invention can be applied to measure such as the stretching mechanical of this class anisotropic material of bamboo chip preferably, to the test piece end not damaged, show with the sample test result through a plurality of simultaneously, Data duplication is better, can think anchor clamps itself on measurement result substantially without the impact.

Claims (2)

1. a tensile test fixture includes bottom plate (1), auxiliary splint (2) and cushion block (3), it is characterized in that: described bottom plate (1) bottom is provided with panel bolts hole (7); Described bottom plate (1), auxiliary splint (2), cushion block (3) connect by set bolt (8); Described auxiliary splint (2) can slide at set bolt (8); Described bottom plate (1) is provided with the first caging bolt (6); Described cushion block (3) is provided with the second caging bolt (4).
2. a kind of tensile test fixture according to claim 1, it is characterized in that: the inboard of described bottom plate (1) and auxiliary splint (2) is provided with draw-in groove, and draw-in groove is embedded with spring (5).
CN201210421998.3A 2012-10-30 2012-10-30 A kind of tensile test fixture Expired - Fee Related CN102928288B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210421998.3A CN102928288B (en) 2012-10-30 2012-10-30 A kind of tensile test fixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210421998.3A CN102928288B (en) 2012-10-30 2012-10-30 A kind of tensile test fixture

Publications (2)

Publication Number Publication Date
CN102928288A true CN102928288A (en) 2013-02-13
CN102928288B CN102928288B (en) 2016-04-20

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210421998.3A Expired - Fee Related CN102928288B (en) 2012-10-30 2012-10-30 A kind of tensile test fixture

Country Status (1)

Country Link
CN (1) CN102928288B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103884588A (en) * 2014-04-16 2014-06-25 四川材料与工艺研究所 Curved surface sample tensile property test fixture
CN104155180A (en) * 2014-08-21 2014-11-19 四川富临集团成都机床有限责任公司 Method for testing tensile property of tensile machine
CN107389522A (en) * 2017-06-27 2017-11-24 孙加红 A kind of textile seepage of water detection device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040253065A1 (en) * 2003-06-10 2004-12-16 Davis Robert L. Doweling jig for woodworking
CN201632802U (en) * 2010-04-21 2010-11-17 中冶建工有限公司 Support frame welding jig
CN202221394U (en) * 2011-09-02 2012-05-16 上海大学 Multifunctional tensile test fixture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040253065A1 (en) * 2003-06-10 2004-12-16 Davis Robert L. Doweling jig for woodworking
CN201632802U (en) * 2010-04-21 2010-11-17 中冶建工有限公司 Support frame welding jig
CN202221394U (en) * 2011-09-02 2012-05-16 上海大学 Multifunctional tensile test fixture

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103884588A (en) * 2014-04-16 2014-06-25 四川材料与工艺研究所 Curved surface sample tensile property test fixture
CN104155180A (en) * 2014-08-21 2014-11-19 四川富临集团成都机床有限责任公司 Method for testing tensile property of tensile machine
CN107389522A (en) * 2017-06-27 2017-11-24 孙加红 A kind of textile seepage of water detection device

Also Published As

Publication number Publication date
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CF01 Termination of patent right due to non-payment of annual fee
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Granted publication date: 20160420

Termination date: 20171030