CN203929532U - A kind of jointing testing device for shear strength - Google Patents
A kind of jointing testing device for shear strength Download PDFInfo
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- CN203929532U CN203929532U CN201420373824.9U CN201420373824U CN203929532U CN 203929532 U CN203929532 U CN 203929532U CN 201420373824 U CN201420373824 U CN 201420373824U CN 203929532 U CN203929532 U CN 203929532U
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Abstract
A kind of jointing testing device for shear strength, it relates to a kind of jointing testing device for shear strength.The utility model be to solve existing shearing strength of joint proving installation exist precision low, process loaded down with trivial details problem.A kind of jointing testing device for shear strength comprises square draw-in groove, upper padding plate, lower bolster, the first pull bar, the second pull bar, the first set nut, the second set nut and the 3rd set nut.The utility model is used for testing jointing shear resistance.
Description
Technical field
The utility model relates to a kind of jointing testing device for shear strength.
Background technology
The method of attachment of material is a lot, and while especially adopting the formation lap joint forms such as brazing and diffusion welding at welding field, the shear resistance test of joint is because be subject to the impact of device can not make researcher satisfied always.Even the size, the shape that in soldered fitting Strength Testing Methods (GB/T11363-2008) are only also butt junction shearing sample in National Standard of the People's Republic of China have been made requirement, and the shearing test clamp of lap joint is only used one " for avoiding the skew of sample, should adopt suitable fixture or pad localization " and was with.
Before eighties of last century end of the eighties, domestic material science worker adds that by shearing sample the right and left the backing plate of equal length, material is subject to the line of force on the faying surface of sample while ensureing imposed load, but in actual mechanical process, slightly deviation of sample holder timing, cannot ensure to be subject to the line of force on faying surface at all, sample must be subject to the effect of a bending force, and measured result and results needed deviation are very large, cannot meet material supplier author's demand completely.
Document " C.Isola et al, Joining of Surface Modified Carbon-Carbon Composites using aBarium-Aluminum-Boro-Silicate glass, J.Euro.Ceram.Soc., 1998, 18, 1017～1024 " introduced a kind of test fixture for shear intensity of joint, this test fixture divides upper and lower two parts, upper fastener and lower fastener, while carrying out shearing strength of joint test, the glue of the material after bonding is bonded at respectively to the interior facade of fastener and lower fastener, material a slice after bonding above with upper fastener close contact, below bonding another sheet of rear material with lower fastener close contact, the shearing strength of joint that pressurizeed test.Test more time-consumingly, and material is easy to lower fastener and comes off.
" test fixture for shear intensity of joint " of Northwestern Polytechnical University's invention, cutting ferrule is a cylinder, and upper fastener and lower fastener are cylinders, and in the process of exerting pressure, cutting ferrule and upper lower fastener are easily stuck, and are difficult for processing and manufacturing.
The Yan of Harbin Institute of Technology spring of a specified duration one section of document " Ultrasonic brazing of high fraction volume of SiC particulatereinforced aluminium matrixcomposites; Materials Science and Technology 2009; 25; 378-382 " has been introduced a kind of shearing test fixture, this fixture is confined to shape and the size of sample at work, this fixture can only, for the joint of docking shape, cannot be applied to lap joint.In the time being applied to thin plate sample (thickness is less than 2mm), owing to cannot clamping up and down, and cause precision inaccurate.
" test fixture for shear intensity of joint " of Lanzhou University of Science & Technology invention, cutting ferrule is bolted, if it is too large to step up power, both are easily stuck; If insufficient clamping force, pull bar sample under plus load effect can bend, and measured result deviation is very large.In addition, this fixture has strict dimensional requirement to sample, sample must be machined to the size that adapts to fixture before shear test.
Utility model content
The utility model is will solve existing shearing strength of joint proving installation to have the inaccurate and easily skew and produce the problem of bending force of sample while stretching of precision, and a kind of jointing testing device for shear strength is provided.
A kind of jointing testing device for shear strength of the present utility model comprises square draw-in groove, upper padding plate, lower bolster, the first pull bar, the second pull bar, the first set nut, the second set nut and the 3rd set nut; The left end of described square draw-in groove is provided with the first pull bar, has square groove left on the right side of described square draw-in groove, is extended with draw-in groove in the upper end of described square groove, is provided with through hole in the upper end of upper draw-in groove, and described the first set nut and through hole are threaded connection; Lower end at described square groove is extended with lower bayonet slot, is provided with two through holes in the lower end of lower bayonet slot, and described the second set nut and the 3rd set nut and two through holes are threaded connection respectively; Described square groove is connected with upper draw-in groove and lower bayonet slot respectively, and groove depth is identical; Described upper padding plate is arranged in draw-in groove, and described lower bolster is arranged in lower bayonet slot; The upper surface of described the second pull bar contacts with the lower surface of described upper padding plate, and the left end of described the second pull bar is extended with boss downwards, and the right side of boss contacts with the left side of sample, and the upper surface of described lower bolster contacts with the lower surface of sample.
Principle of work of the present utility model: sample holder is between the second pull bar and lower bolster, compress upper padding plate and lower bolster by the first set nut, the second set nut and the 3rd set nut, then the first pull bar and the second pull bar are connected in and on cupping machine, carry out Mechanics Performance Testing.
The beneficial effects of the utility model:
The utility model is ensureing in the first pull bar and the second pull bar are in the same horizontal line by the location of upper and lower nut, not only can carry out appropriateness to the dimensional requirement of tensile sample relaxes, prior guarantee tensile sample tightly rides over the boss edge of groove, the center of overlap joint sample is on the horizontal line of tensile force, and then ensure that sample is only subject to the effect of shearing force and does not bend, ensure the precision of experimental result.
Brief description of the drawings
Fig. 1 is a kind of jointing testing device for shear strength structural drawing of the present utility model.
Embodiment
Embodiment one: as shown in Figure 1, a kind of jointing testing device for shear strength of present embodiment comprises square draw-in groove 1, upper padding plate 5, lower bolster 6, the first pull bar 10, the second pull bar 11, the first set nut 7, the second set nut 8 and the 3rd set nut 9; The left end of described square draw-in groove 1 is provided with the first pull bar 10, right side at described square draw-in groove 1 has square groove 2 left, be extended with draw-in groove 3 in the upper end of described square groove 2, be provided with through hole in the upper end of upper draw-in groove 3, described the first set nut 7 is threaded connection with through hole; Be extended with lower bayonet slot 4 in the lower end of described square groove 2, be provided with two through holes in the lower end of lower bayonet slot 4, described the second set nut 8 and the 3rd set nut 9 and two through holes are threaded connection respectively; Described square groove 2 is connected with upper draw-in groove 3 and lower bayonet slot 4 respectively, and groove depth is identical; Described upper padding plate 5 is arranged in draw-in groove 3, and described lower bolster 6 is arranged in lower bayonet slot 4; The upper surface of described the second pull bar 11 contacts with the lower surface of described upper padding plate 5, and the left end of described the second pull bar 11 is extended with boss downwards, and the right side of boss contacts with the left side of sample 12, and the upper surface of described lower bolster 6 contacts with the lower surface of sample 12.
Present embodiment is ensureing in the first pull bar and the second pull bar are in the same horizontal line by the location of upper and lower nut, not only can carry out appropriateness to the dimensional requirement of tensile sample relaxes, prior guarantee tensile sample tightly rides over the boss edge of groove, the center of overlap joint sample is on the horizontal line of tensile force, and then ensure that sample is only subject to the effect of shearing force and does not bend, ensure the precision of experimental result.
Embodiment two: present embodiment is different from embodiment one: the length of described square groove 2 is less than the length of described square draw-in groove 1.The test specimen of being convenient to meet different size is tested.Other are identical with embodiment one.
Embodiment three: present embodiment is different from embodiment one or two: the length of described upper padding plate 5 is less than or equal to the length of upper draw-in groove 3.Other are identical with embodiment one or two.
Embodiment four: present embodiment is different from embodiment one to three: the length of described lower bolster 6 is less than or equal to the length of lower bayonet slot 4.Other are identical with embodiment one to three.
Embodiment five: present embodiment is different from one of embodiment one to four: described the first pull bar 10 and the second pull bar 11 arrange in the same horizontal line.So arrange, ensure the loading direction of the first pull bar 10 and the second pull bar 11 in the same horizontal line.Other are identical with one of embodiment one to four.
Claims (5)
1. a jointing testing device for shear strength, is characterized in that jointing testing device for shear strength comprises square draw-in groove (1), upper padding plate (5), lower bolster (6), the first pull bar (10), the second pull bar (11), the first set nut (7), the second set nut (8) and the 3rd set nut (9); The left end of described square draw-in groove (1) is provided with the first pull bar (10), have square groove (2) left on the right side of described square draw-in groove (1), be extended with upper draw-in groove (3) in the upper end of described square groove (2), upper end at upper draw-in groove (3) is provided with through hole, and described the first set nut (7) is threaded connection with through hole; Be extended with lower bayonet slot (4) in the lower end of described square groove (2), be provided with two through holes in the lower end of lower bayonet slot (4), described the second set nut (8) and the 3rd set nut (9) are threaded connection respectively with two through holes; Described square groove (2) is connected with upper draw-in groove (3) and lower bayonet slot (4) respectively, and groove depth is identical; Described upper padding plate (5) is arranged in draw-in groove (3), and described lower bolster (6) is arranged in lower bayonet slot (4); The upper surface of described the second pull bar (11) contacts with the lower surface of described upper padding plate (5), the left end of described the second pull bar (11) is extended with boss downwards, the right side of boss contacts with the left side of sample (12), and the upper surface of described lower bolster (6) contacts with the lower surface of sample (12).
2. a kind of jointing testing device for shear strength according to claim 1, is characterized in that the length of described square groove 2 is less than the length of described square draw-in groove (1).
3. a kind of jointing testing device for shear strength according to claim 1, is characterized in that the length of described upper padding plate 5 is less than or equal to the length of draw-in groove (3).
4. a kind of jointing testing device for shear strength according to claim 1, is characterized in that the length of described lower bolster 6 is less than or equal to the length of lower bayonet slot (4).
5. a kind of jointing testing device for shear strength according to claim 1, is characterized in that described the first pull bar (10) and the second pull bar (11) arrange in the same horizontal line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373824.9U CN203929532U (en) | 2014-07-08 | 2014-07-08 | A kind of jointing testing device for shear strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420373824.9U CN203929532U (en) | 2014-07-08 | 2014-07-08 | A kind of jointing testing device for shear strength |
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| Publication Number | Publication Date |
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| CN203929532U true CN203929532U (en) | 2014-11-05 |
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| CN201420373824.9U Expired - Fee Related CN203929532U (en) | 2014-07-08 | 2014-07-08 | A kind of jointing testing device for shear strength |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729913A (en) * | 2015-04-20 | 2015-06-24 | 哈尔滨工业大学（威海） | Shear testing fixture for brazed test pieces |
| CN104990810A (en) * | 2015-07-03 | 2015-10-21 | 河南机电高等专科学校 | Connector shear strength testing device |
| CN105181589A (en) * | 2015-10-30 | 2015-12-23 | 黄河水利委员会黄河水利科学研究院 | FRP-concrete bonding interface shearing experiment device |
| CN105466762A (en) * | 2015-12-17 | 2016-04-06 | 中国电力科学研究院 | Aluminum sheet substrate for coating shearing strength test and test sample thereof |
| CN106918500A (en) * | 2017-05-02 | 2017-07-04 | 南京钢铁股份有限公司 | A kind of device and its application method for clad steel plate shearing test |
| CN107340108A (en) * | 2017-08-21 | 2017-11-10 | 贵州航太精密制造有限公司 | A kind of shear test frock for bearing lock |
-
2014
- 2014-07-08 CN CN201420373824.9U patent/CN203929532U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104729913A (en) * | 2015-04-20 | 2015-06-24 | 哈尔滨工业大学（威海） | Shear testing fixture for brazed test pieces |
| CN104729913B (en) * | 2015-04-20 | 2018-10-02 | 哈尔滨工业大学（威海） | A kind of soldering test specimen shearing test clamp |
| CN104990810A (en) * | 2015-07-03 | 2015-10-21 | 河南机电高等专科学校 | Connector shear strength testing device |
| CN105181589A (en) * | 2015-10-30 | 2015-12-23 | 黄河水利委员会黄河水利科学研究院 | FRP-concrete bonding interface shearing experiment device |
| CN105466762A (en) * | 2015-12-17 | 2016-04-06 | 中国电力科学研究院 | Aluminum sheet substrate for coating shearing strength test and test sample thereof |
| CN106918500A (en) * | 2017-05-02 | 2017-07-04 | 南京钢铁股份有限公司 | A kind of device and its application method for clad steel plate shearing test |
| CN107340108A (en) * | 2017-08-21 | 2017-11-10 | 贵州航太精密制造有限公司 | A kind of shear test frock for bearing lock |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 Termination date: 20170708 |
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| CF01 | Termination of patent right due to non-payment of annual fee |