CN107702984B - Clamp device for detecting shear strength of sample - Google Patents
Clamp device for detecting shear strength of sample Download PDFInfo
- Publication number
- CN107702984B CN107702984B CN201711024128.1A CN201711024128A CN107702984B CN 107702984 B CN107702984 B CN 107702984B CN 201711024128 A CN201711024128 A CN 201711024128A CN 107702984 B CN107702984 B CN 107702984B
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- China
- Prior art keywords
- sample
- clamping end
- groove
- square groove
- sample groove
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- 238000012360 testing method Methods 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000002265 prevention Effects 0.000 claims 1
- 238000011160 research Methods 0.000 abstract description 4
- 238000003466 welding Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/04—Chucks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0423—Chucks, fixtures, jaws, holders or anvils using screws
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention relates to a clamp device for detecting shear strength of a sample, which comprises a horizontal clamping end, wherein a square groove is formed in the upper surface of the horizontal clamping end, a rotary clamping end is arranged at the end part of the square groove through a hinge shaft, anti-drop screws are arranged at the two ends of the rotary clamping end, and the root part of the rotary clamping end is matched with the square groove; the inner side of the rotary clamping end is provided with a first concave sample groove, the middle part of the square groove is provided with a second sample groove corresponding to the first sample groove, and samples of products are placed in the first sample groove and the second sample groove. The invention has compact and reasonable structure and convenient operation, and the test sample processed according to certain size requirement is placed in the square groove in the clamp, and the clamping end of the test sample machine fixing clamp stretches according to test requirement, so that the stable performance of the test process is effectively ensured, the mechanical property of the test sample is truly reflected, and the increasingly strict scientific research requirement is met.
Description
Technical Field
The invention relates to the field of detection devices, in particular to a clamp device for detecting the shear strength of samples such as diffusion welding, explosion welding and brazing.
Background
With the current wide application of diffusion welding, explosion welding and brazing, researchers find that when the tensile strength of a sample cannot be tested or is difficult to test, the shear strength is often tested to characterize the mechanical properties of the material. However, the processing size of the sample is often smaller, the problems that the clamping of the testing machine is not firm or the clamping is not firm and the like can occur, so that the data deviation of the test is larger, the mechanical property of the sample can not be truly reflected, the test progress is seriously influenced, and the production efficiency is reduced.
Disclosure of Invention
The applicant provides a clamp device for detecting the shear strength of a sample aiming at the defects in the prior art, so that the detection reliability is improved and the working efficiency is improved.
The technical scheme adopted by the invention is as follows:
the clamp device for detecting the shear strength of the sample comprises a horizontal clamping end, wherein a square groove is formed in the upper surface of the horizontal clamping end, a rotary clamping end is arranged at the end part of the square groove through a hinge shaft, anti-falling screws are arranged at the two ends of the rotary clamping end, and the root part of the rotary clamping end is matched with the square groove; the inner side of the rotary clamping end is provided with a first concave sample groove, the middle part of the square groove is provided with a second sample groove corresponding to the first sample groove, and samples of products are placed in the first sample groove and the second sample groove.
The further technical scheme is as follows:
the two sides of the square groove are respectively provided with a guide rail, the guide rails are of a long round structure, and the hinge shaft is arranged in the guide rails.
The floating blocks are arranged at one ends of the first sample groove and the second sample groove, and the rear ends of the floating blocks are pressure sensors.
And the right end of the first sample tank is provided with a floating block and a pressure sensor.
And a floating block and a pressure sensor are arranged at the left end of the second sample groove.
The upper and lower surfaces of the end part of the horizontal clamping end are provided with first anti-skidding patterns.
The upper and lower surfaces of the end part of the rotary clamping end are provided with second anti-skid patterns.
The beneficial effects of the invention are as follows:
the invention has compact and reasonable structure and convenient operation, and the test sample processed according to certain size requirement is placed in the square groove in the clamp, and the clamping end of the test sample machine fixing clamp stretches according to test requirement, so that the stable performance of the test process is effectively ensured, the mechanical property of the test sample is truly reflected, and the increasingly strict scientific research requirement is met.
The invention effectively ensures the stable performance of the test process, truly reflects the mechanical properties of the test sample and meets the increasingly strict scientific research requirements.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Wherein: 1. a first anti-skid pattern; 2. rotating the clamping end; 3. a first sample well; 4. an anti-drop screw; 5. a horizontal clamping end; 6. a second anti-skid pattern; 7. a second sample well; 8. a slider; 9. a pressure sensor; 10. a guide rail; 11. a sample; 12. and (5) a square groove.
Detailed Description
The following describes specific embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the clamp device for detecting shear strength of a sample in this embodiment includes a horizontal clamping end 5, a square groove 12 is formed on the upper surface of the horizontal clamping end 5, a rotary clamping end 2 is mounted at the end of the square groove 12 through a hinge shaft, and anti-drop screws 4 are mounted at both ends of the rotary clamping end 2, and the root of the rotary clamping end 2 is matched with the square groove 12; the inner side of the rotary clamping end 2 is provided with a first concave sample groove 3, the middle part of the square groove 12 is provided with a second sample groove 7 corresponding to the first sample groove 3, and samples 11 of products are placed in the first sample groove 3 and the second sample groove 7.
The two sides of the square groove 12 are respectively provided with a guide rail 10, the guide rail 10 is of a long round structure, and a hinge shaft is arranged in the guide rail 10.
A slider 8 is mounted on one end of each of the first sample cell 3 and the second sample cell 7, and a pressure sensor 9 is mounted on the rear end of the slider 8.
The slider 8 and the pressure sensor 9 are mounted on the right end of the first sample tank 3.
A slider 8 and a pressure sensor 9 are mounted on the left end of the second sample cell 7.
The design of the floating block 8 and the pressure sensor 9 can conveniently realize the accurate detector stretching deformation condition in the test process.
The upper and lower surfaces of the end part of the horizontal clamping end 5 are provided with first anti-skid patterns 1.
The upper and lower surfaces of the end part of the rotary clamping end 2 are provided with second anti-skid patterns 6.
The test sample 11 of the product test is divided into three parts, namely an upper material, an intermediate layer material and a lower material, the local details of the clamp are a guide rail 10 and an anti-drop screw 4, and the materials of the test sample 11 can be the same or different.
In the actual working process, two clamping ends (rotating clamping ends 2 and horizontal clamping ends 5) are assembled, anti-falling screws 4 are arranged, samples 11 processed according to certain size requirements are placed in square grooves 12, the two clamping ends are closed and are respectively placed on a stretcher, in the inspection process, first anti-skidding patterns 1 and second anti-skidding patterns 6 are engraved on the clamping ends of a clamp, friction force is effectively increased, slipping and other problems in the detection process are prevented, the device is mainly subjected to the stretching action of the stretcher, the clamping ends move in the stretching direction under the action of a guide rail 10, when the force reaches a certain degree, upper materials and lower materials are separated at the position of an intermediate layer material, and real, accurate and reliable shear strength data can be obtained through the conversion of the force displayed by the pressure sensor 9 and the stretcher.
The invention effectively ensures the stable performance of the test process, truly reflects the mechanical properties of the test sample and meets the increasingly strict scientific research requirements.
The above description is intended to illustrate the invention and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the invention.
Claims (1)
1. The utility model provides a detect sample shear strength's fixture device which characterized in that: the anti-drop device comprises a horizontal clamping end (5), wherein a square groove (12) is formed in the upper surface of the horizontal clamping end (5), a rotary clamping end (2) is arranged at the end part of the square groove (12) through a hinge shaft, anti-drop screws (4) are arranged at the two ends of the rotary clamping end, and the root part of the rotary clamping end (2) is matched with the square groove (12); the inner side of the rotary clamping end (2) is provided with a first concave sample groove (3), the middle part of the square groove (12) is provided with a second sample groove (7) corresponding to the first sample groove (3), and samples (11) of products are placed in the first sample groove (3) and the second sample groove (7); the two sides of the square groove (12) are respectively provided with a guide rail (10), the guide rails (10) are of a long round structure, and the hinge shaft is arranged in the guide rails (10); a floating block (8) is arranged at one end of each of the first sample groove (3) and the second sample groove (7), and the rear end of the floating block (8) is provided with a pressure sensor (9); a floating block (8) and a pressure sensor (9) are arranged at the right end of the first sample groove (3); a floating block (8) and a pressure sensor (9) are arranged at the left end of the second sample groove (7); the upper and lower surfaces of the end part of the horizontal clamping end (5) are provided with first anti-skid patterns (1); the upper and lower surfaces of the end part of the rotary clamping end (2) are respectively provided with second anti-skid patterns (6); during the test, assemble two clamping ends and accomplish, install anticreep screw (4), place sample (11) in square groove (12), put the stretcher respectively on two clamping ends are closed, in the testing process, first anti-skidding line (1) and second anti-skidding line (6) are carved with on the clamping end of anchor clamps, frictional force has been increased, the problem of skidding in the prevention testing process, receive the stretching effect of stretcher in the test, the clamping end removes along the stretching direction at the effect of guide rail (10), when the dynamics reaches certain degree, separate upper portion material and lower part material in intermediate floor material department, the dynamics that shows through pressure sensor (9) and stretcher is through the conversion can obtain true accurate reliable shear strength data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711024128.1A CN107702984B (en) | 2017-10-27 | 2017-10-27 | Clamp device for detecting shear strength of sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711024128.1A CN107702984B (en) | 2017-10-27 | 2017-10-27 | Clamp device for detecting shear strength of sample |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107702984A CN107702984A (en) | 2018-02-16 |
| CN107702984B true CN107702984B (en) | 2024-01-23 |
Family
ID=61182558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711024128.1A Active CN107702984B (en) | 2017-10-27 | 2017-10-27 | Clamp device for detecting shear strength of sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107702984B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108267364B (en) * | 2018-03-09 | 2023-11-28 | 华南师范大学 | Shearing clamp |
| CN110514516B (en) * | 2019-08-23 | 2021-11-30 | 杭州源位科技有限公司 | Tensile sample clamp with spring for assisting fastening |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121328A (en) * | 2001-10-10 | 2003-04-23 | Building Research Institute | Shearing testing fixture |
| WO2006074658A2 (en) * | 2005-01-12 | 2006-07-20 | Danmarks Tekniske Universitet | Fixture |
| CN103499498A (en) * | 2013-10-15 | 2014-01-08 | 北京星航机电装备有限公司 | Brazing metal honeycomb structure plane shearing performance testing method |
| CN205192873U (en) * | 2015-12-01 | 2016-04-27 | 沧州市市政工程股份有限公司 | Bituminous mixture interlaminar shear strength test device |
| CN206258326U (en) * | 2016-12-15 | 2017-06-16 | 北京天仁道和新材料有限公司 | Train brake pad testing device for shear strength |
| CN106932282A (en) * | 2017-03-31 | 2017-07-07 | 长安大学 | A kind of bituminous paving interlayer shearing test device |
| CN207540883U (en) * | 2017-10-27 | 2018-06-26 | 无锡汉神电气股份有限公司 | A kind of grip device for detecting sample shearing strength |
-
2017
- 2017-10-27 CN CN201711024128.1A patent/CN107702984B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003121328A (en) * | 2001-10-10 | 2003-04-23 | Building Research Institute | Shearing testing fixture |
| WO2006074658A2 (en) * | 2005-01-12 | 2006-07-20 | Danmarks Tekniske Universitet | Fixture |
| CN103499498A (en) * | 2013-10-15 | 2014-01-08 | 北京星航机电装备有限公司 | Brazing metal honeycomb structure plane shearing performance testing method |
| CN205192873U (en) * | 2015-12-01 | 2016-04-27 | 沧州市市政工程股份有限公司 | Bituminous mixture interlaminar shear strength test device |
| CN206258326U (en) * | 2016-12-15 | 2017-06-16 | 北京天仁道和新材料有限公司 | Train brake pad testing device for shear strength |
| CN106932282A (en) * | 2017-03-31 | 2017-07-07 | 长安大学 | A kind of bituminous paving interlayer shearing test device |
| CN207540883U (en) * | 2017-10-27 | 2018-06-26 | 无锡汉神电气股份有限公司 | A kind of grip device for detecting sample shearing strength |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107702984A (en) | 2018-02-16 |
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