CN201442127U - Shearing fixture - Google Patents
Shearing fixture Download PDFInfo
- Publication number
- CN201442127U CN201442127U CN2009200037867U CN200920003786U CN201442127U CN 201442127 U CN201442127 U CN 201442127U CN 2009200037867 U CN2009200037867 U CN 2009200037867U CN 200920003786 U CN200920003786 U CN 200920003786U CN 201442127 U CN201442127 U CN 201442127U
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- CN
- China
- Prior art keywords
- shearing
- sample
- anchor clamps
- lower clamp
- wedge
- 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.)
- Expired - Fee Related
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- 238000010008 shearing Methods 0.000 title claims abstract description 42
- 238000012360 testing method Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 abstract description 11
- 241001661918 Bartonia Species 0.000 abstract 4
- 230000000694 effects Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a shearing fixture, which comprises an upper fixture body, a lower fixture base and a supporting base. The lower fixture base is arranged on the supporting base, a hollow square chamber for containing samples is arranged inside the lower fixture base, the upper end of the lower fixture base is equipped with a pressing screw stem and a wedge-shaped jaw, the wedge-shaped jaw is pushed through rotating the pressing screw stem to tightly contact with the samples in the hollow square chamber, and the upper fixture body contacts with the samples. The shearing fixture has the advantages that the upper end of the lower fixture base is equipped with the pressing screw stem and the wedge-shaped jaw, the wedge-shaped jaw can be a wedge-shaped structure, and the pressing screw stem can exert downwards pressure to the wedge-shaped jaw so as to press the samples, thereby being capable of preventing the samples sliding, loosening and tilting towards a non-testing area during loading, and then increasing reliability of a shearing testing process and accuracy of results.
Description
Technical field
The utility model belongs to a kind of test fixture, relates in particular to a kind of shearing anchor clamps.
Background technology
In the prior art, when sample is carried out Performance Detection, tend to analyze its anti-shear performance, when the anti-shear performance of test sample, can use the shearing anchor clamps, sample is placed the shearing anchor clamps, sample is clamped by bit by the lower clamp seat of shearing in the anchor clamps, thereby the anti-shear performance of this sample is tested.
But, along with the continuous increase of shearing force, be fixed on sample in the lower clamp seat may produce loosening, slippage, thus cause test result inaccurate, reduced the reliability of shearing test.
The utility model content
For addressing the above problem, the utility model provides a kind of shearing anchor clamps, can improve the reliability of shearing test process and result's accuracy.
Shearing anchor clamps in the utility model is characterized in that, comprising: go up clamp body, lower clamp seat and supporting seat; Described lower clamp seat is arranged on the described supporting seat, is useful on the back-shaped chamber that holds sample in the described lower clamp seat; The upper end of described lower clamp seat is provided with clamping screw and wedge shape jaw, promotes described wedge shape jaw and closely contacts with sample in the described back-shaped chamber by rotating described clamping screw; The described clamp body of going up contacts with described sample.
In order to improve the test effect of shearing test, in the utility model, described sideline of going up clamp body overlaps with the loading center of test board, and the lower clamp seat is fixed on the described supporting seat by nut, makes the bottom width of lower clamp seat above the loading center of testing board.
In order to increase the frictional force between wedge shape jaw and the sample, in the utility model, described wedge shape jaw is a wedge structure, and the vice jaw surface of described wedge shape jaw contacts with described sample, and described vice jaw surface is textured matsurface.
For convenience of the user, in the utility model, described supporting seat is provided with peephole, can observe the clamping position by described peephole.
As can be seen from the above technical solutions, the utlity model has following advantage:
1, in the utility model, be provided with clamping screw and wedge shape jaw in the upper end of lower clamp seat, this wedge shape jaw can be wedge structure, thereby this clamping screw can produce downward pressure to the wedge shape jaw and compress sample, so can prevent sample extremely non-test place slippage in loading, loosening, inclination, thereby improve the reliability of shearing test process and result's accuracy;
2, in the utility model, the sideline of last clamp body overlaps with the loading center of test board, therefore can improve the test effect of shearing test;
3, in the utility model, the lower clamp seat is fixed on the supporting seat by nut, makes the bottom width of lower clamp seat surpass the loading center of test board, with the stability of increase test, thus the reliability of raising shearing test process;
4, in the utility model, compress the upper end of sample, can increase the frictional force between wedge shape jaw and the sample by the matsurface of wedge shape jaw;
5, in the utility model, the wedge shape jaw is a wedge structure, and therefore the chucking power to sample constantly increases in loading procedure, make more firm clamped of sample, avoid occurring becoming flexible, slippage, thus improve the reliability of shearing test process and result's accuracy.
Description of drawings
Fig. 1 is the shearing anchor clamps schematic diagram in the utility model.
The specific embodiment
The utility model provides a kind of shearing anchor clamps, is used to improve the reliability of shearing test process and result's accuracy.
Shearing anchor clamps in the present embodiment specifically can comprise:
Last clamp body, lower clamp seat and supporting seat;
Described lower clamp seat is arranged on the described supporting seat, is useful on the back-shaped chamber that holds sample in the described lower clamp seat;
The upper end of described lower clamp seat is provided with clamping screw and wedge shape jaw, promotes described wedge shape jaw and closely contacts with sample in the described back-shaped chamber by rotating described clamping screw;
The described clamp body of going up contacts with described sample.
In the utility model, be provided with clamping screw and wedge shape jaw in the upper end of lower clamp seat, this wedge shape jaw can be wedge structure, thereby this clamping screw can produce downward pressure to the wedge shape jaw and compress sample, so can prevent sample extremely non-test place slippage in loading, loosening, inclination, thereby improve the reliability of shearing test process and result's accuracy.
For ease of understanding, below in conjunction with accompanying drawing the shearing anchor clamps in the present embodiment are described in detail, see also Fig. 1, the shearing anchor clamps in the present embodiment comprise:
Supporting seat 101, lower contact 102, lower clamp seat 103, sample 104, clamping screw 105, last clamp body 106, top connection 107, back tightening nut 108, nut 109 and wedge shape jaw 110;
Wherein, lower clamp seat 103 is arranged on the described supporting seat 101, is useful on the back-shaped chamber that holds sample 104 in the described lower clamp seat 103;
One end of described top connection 107 links to each other with the shearing force generator, and the other end links to each other with the described clamp body 106 of going up, and described top connection 107 is fixed by back tightening nut 108 with the described clamp body 106 of going up;
Be provided with back tightening nut between supporting seat 101 and the lower contact 102, make relative fixed between supporting seat 101 and the lower contact 102.
In the present embodiment, because the back-shaped chamber in the lower clamp seat 103 can only hold the part of sample 104, so sample 104 has an other part and is positioned at outside the back-shaped chamber, and the bottom of last clamp body 106 can contact with the upper surface of this sample.
The purpose of the shearing anchor clamps in the present embodiment is the anti-shear performance of sample 104 is analyzed, in order to improve the effect of test, should make shearing force concentrate on as far as possible on the sample 104, therefore, the sideline of last clamp body 106 can overlap with the loading center of test board, then go up the shearing force that clamp body 106 applies and to be concentrated on the sample 104, thereby improve the test effect.
In the present embodiment, for the anti-shear performance of test sample 104 accurately, should make sample 104 in test process, not become flexible, slippage, therefore clamping screw 105 and wedge shape jaw 110 can be set in the upper end of lower clamp seat 103, closely contact by rotating the upper surface that this clamping screw 105 promotes the sample 104 in described wedge shape jaw 110 and the back-shaped chamber.
The vice jaw surface of the wedge shape jaw 110 in the present embodiment, promptly the one side that contacts with sample 104 can be matsurface, has lines on this face to increase the frictional force between wedge shape jaw 110 and the sample 104.
Therefore wedge shape jaw 110 is a wedge structure, and the chucking power to sample 104 constantly increases in loading procedure, makes more firm clamped of sample 104, avoid occurring loosening, slippage, thus improve the reliability of shearing test process and result's accuracy.
Can also be provided with scale on the side of the supporting seat 101 in the present embodiment, lower clamp seat 103 links to each other with supporting seat 101 by nut 109, and lower clamp seat 103 can slide on supporting seat 101 along the direction of the scale on the supporting seat 101.
Can also be provided with peephole on the shearing anchor clamps of present embodiment, can clear observation clamping position (face) by this peephole, make clamping more convenient, quick.
Can also be provided with deformation measuring device on the shearing anchor clamps in the present embodiment, this device can directly be measured the distortion that loads sample, thereby makes measurement more near actual conditions.
Back-shaped chamber in the lower clamp seat 103 of the shearing anchor clamps in the present embodiment is back-shaped body structure, sample 104 is placed in chamber by this back-shaped body, and adopt the mode that clamps up and down that sample 104 is clamped, make that sample 104 width are unrestricted, clamping is convenient, flexible.
Shearing anchor clamps appearance and size in the present embodiment can be mated with high-low temperature chamber, optimal design, reaches normal temperature and high low temperature is general.
Need to prove, shearing anchor clamps in the present embodiment go for aluminum alloy building section-heat insulation section and metallic insulation section bar, be understandable that the shearing anchor clamps in the present embodiment go for the section bar of other types equally, particular type does not limit herein.
More than a kind of shearing anchor clamps provided by the utility model are described in detail, for one of ordinary skill in the art, according to thought of the present utility model, part in specific embodiments and applications all can change, in sum, this description should not be construed as restriction of the present utility model.
Claims (6)
1. shear anchor clamps for one kind, it is characterized in that, comprising:
Last clamp body (106), lower clamp seat (103) and supporting seat (101);
Described lower clamp seat (103) is arranged on the described supporting seat (101), is useful on the back-shaped chamber that holds sample (104) in the described lower clamp seat (103);
The upper end of described lower clamp seat (103) is provided with clamping screw (105) and wedge shape jaw (110), promotes described wedge shape jaw (110) and closely contacts with sample (104) in the described back-shaped chamber by rotating described clamping screw (105).
2. shearing anchor clamps according to claim 1 is characterized in that, described sideline of going up clamp body (106) overlaps with the loading center of test board.
3. shearing anchor clamps according to claim 1 is characterized in that, described lower clamp seat (103) is fixed on the described supporting seat (101) by nut (109), make the bottom width of lower clamp seat (103) surpass the loading center of test board.
4. shearing anchor clamps according to claim 1 is characterized in that, described wedge shape jaw (110) is a wedge structure, and the vice jaw surface of described wedge shape jaw (110) contacts with described sample (104), and described vice jaw surface is textured matsurface.
5. shearing anchor clamps according to claim 1 is characterized in that, described supporting seat (101) side is provided with scale.
6. shearing anchor clamps according to claim 1 is characterized in that (101) are provided with the peephole that can observe the clamping position on the described supporting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200037867U CN201442127U (en) | 2009-01-23 | 2009-01-23 | Shearing fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200037867U CN201442127U (en) | 2009-01-23 | 2009-01-23 | Shearing fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201442127U true CN201442127U (en) | 2010-04-28 |
Family
ID=42546802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200037867U Expired - Fee Related CN201442127U (en) | 2009-01-23 | 2009-01-23 | Shearing fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201442127U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936850A (en) * | 2010-08-10 | 2011-01-05 | 常州三阳建设工程检测有限公司 | Fixture for shearing test |
| CN105445098A (en) * | 2015-12-10 | 2016-03-30 | 江门气派摩托车有限公司 | Brake-shoe block clamp for shearing test |
| CN106989991A (en) * | 2017-05-08 | 2017-07-28 | 长兴华强电子股份有限公司 | A kind of iron core strength test frock |
| CN108344632A (en) * | 2018-01-17 | 2018-07-31 | 北京航空航天大学 | A kind of extremely low modulus composite material interlayer shearing clamp and test method |
-
2009
- 2009-01-23 CN CN2009200037867U patent/CN201442127U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101936850A (en) * | 2010-08-10 | 2011-01-05 | 常州三阳建设工程检测有限公司 | Fixture for shearing test |
| CN101936850B (en) * | 2010-08-10 | 2013-08-21 | 江苏三阳建设工程检测有限公司 | Fixture for shearing test |
| CN105445098A (en) * | 2015-12-10 | 2016-03-30 | 江门气派摩托车有限公司 | Brake-shoe block clamp for shearing test |
| CN106989991A (en) * | 2017-05-08 | 2017-07-28 | 长兴华强电子股份有限公司 | A kind of iron core strength test frock |
| CN106989991B (en) * | 2017-05-08 | 2019-10-18 | 长兴华强电子股份有限公司 | A tool for testing the strength of iron core |
| CN108344632A (en) * | 2018-01-17 | 2018-07-31 | 北京航空航天大学 | A kind of extremely low modulus composite material interlayer shearing clamp and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20180123 |