CN204422326U - Adjustable dumbbell shape test specimen tensile testing jaws - Google Patents
Adjustable dumbbell shape test specimen tensile testing jaws Download PDFInfo
- Publication number
- CN204422326U CN204422326U CN201520062566.7U CN201520062566U CN204422326U CN 204422326 U CN204422326 U CN 204422326U CN 201520062566 U CN201520062566 U CN 201520062566U CN 204422326 U CN204422326 U CN 204422326U
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- China
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- main body
- body arm
- arm beam
- drive screw
- cantilever
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Abstract
The utility model discloses a kind of adjustable dumbbell shape test specimen tensile testing jaws, include the main body arm beam of two parallel cantilever; Be symmetricly set on the dumbbell shaped chuck between main body arm beam two cantilever end face; Through main body arm girder cantilever and dumbbell shaped chuck, and with dumbbell shaped chuck threaded engagement, the drive screw be rotatably assorted with main body arm girder cantilever; Two through drive screw and with the register pin of drive screw clearance fit; Wherein, crossbeam between main body arm beam two parallel cantilever is provided with the pin-and-hole coordinated with testing machine loading end, the end face of one end of dumbbell shaped chuck and the crossbeam of main body arm beam is slidably matched, and the distance between two register pins matches with the length through main body arm girder cantilever; The utility model clamping dimension is adjustable, and the centering of test specimen and testing machine is adjustable.
Description
Technical field
The utility model belongs to mechanics of materials studying technological domain, particularly a kind of adjustable dumbbell shape test specimen tensile testing jaws.
Background technology
For mechanics study, tension test is the most basic test of research material mechanical property, and in order to the feasibility of warranty test and the reliability of test findings, in process of the test, test specimen must be effectively held on test platform.More selecting as dumbbell shaped test specimen in current mechanics of materials research, therefore urgently study a kind of simple and reliable dumbbell shaped piece fixture to realize necessary gripping performance.
Fixture that usual drawing machine configures all has fixed clamp size, and because direct carry is on tensile axis, does not possess free adjustment ability.Generally speaking, for the test specimen of selected size, the chuck needing additional customized to mate is to realize the clamping of test specimen, cause test setup time longer, and brand-new fixture and drawing machine tensile axis need carry out a period of time break-in just can reach desirable mated condition, certain influence is caused to pre-stage test result.On the other hand, after long-time use, there is certain deviation in the centering of drawing machine tensile axis, cannot ensure the axial direction into regulation in experimentation to the draw direction of test specimen.If need to adjust the draw direction of test specimen, need manually frequently to regulate drawing machine bolt, precision and efficiency lower, therefore, need to design a kind of can regulate clamping dimension and the fixture that can change test specimen and drawing machine relative position to meet predetermined testing requirements.
Summary of the invention
It is adjustable that the purpose of this utility model is to provide a kind of clamping dimension, and the adjustable dumbbell shape test specimen tensile testing jaws that the centering of test specimen and testing machine is adjustable.
The technical solution realizing the utility model object is:
A kind of adjustable dumbbell shape test specimen tensile testing jaws,
Include the main body arm beam of two parallel cantilever;
Be symmetricly set on the dumbbell shaped chuck between main body arm beam two cantilever end face;
Through main body arm girder cantilever and dumbbell shaped chuck, and with dumbbell shaped chuck threaded engagement, the drive screw be rotatably assorted with main body arm girder cantilever;
Two through drive screw and with the register pin of drive screw clearance fit;
Wherein, crossbeam between main body arm beam two parallel cantilever is provided with the pin-and-hole coordinated with testing machine loading end, the end face of one end of dumbbell shaped chuck and the crossbeam of main body arm beam is slidably matched, and the distance between two register pins matches with the length through main body arm girder cantilever.
The utility model compared with prior art, its remarkable advantage:
(1) the utility model structure is simple, according to sample dimensions size, arbitrarily can regulate spacing between chuck, ensure test specimen clamping.
(2) the utility model clipping operation is convenient, can regulate test specimen and testing machine relative position, to realize higher axial alignment by simple and fast.
(3) the utility model is except conventional axial stretches, and also can realize the mechanical property research that certain angle loads lower material.
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the general structure schematic diagram of the utility model adjustable dumbbell shape test specimen tensile testing jaws.
Fig. 2 is the explosive view of the utility model adjustable dumbbell shape test specimen tensile testing jaws.
Embodiment
Composition graphs 1 and Fig. 2:
A kind of adjustable dumbbell shape of the utility model test specimen tensile testing jaws,
Include the main body arm beam 1 of two parallel cantilever;
Be symmetricly set on the dumbbell shaped chuck 2 between main body arm beam 1 liang of cantilever end face;
Through main body arm beam 1 cantilever and dumbbell shaped chuck 2, and with dumbbell shaped chuck 2 threaded engagement, the drive screw 3 be rotatably assorted with main body arm beam 1 cantilever;
Two through drive screw 3 and with the register pin 5 of drive screw 3 clearance fit;
Wherein, crossbeam between main body arm beam 1 liang of parallel cantilever is provided with the pin-and-hole coordinated with testing machine loading end, the end face of one end of dumbbell shaped chuck 2 and the crossbeam of main body arm beam 1 is slidably matched, and the distance between two register pins 5 matches with the length through main body arm beam 1 cantilever.
One end that drive screw 3 does not stretch into dumbbell shaped chuck 2 has the through hole axially vertical with drive screw 3, and be provided with turn bar 4 in through hole, turn bar 4 coordinates with via clearance.
One end that drive screw 3 does not stretch into dumbbell shaped chuck 2 has the threaded hole axially vertical with drive screw 3, is provided with turn bar 4 in threaded hole, turn bar 4 and threaded hole threaded engagement.
Main body arm beam 1, dumbbell shaped chuck 2, drive screw 3 and turn bar 4 all adopt aluminum alloy materials.
One end of dumbbell shaped chuck 2 and the middle part inner face smooth contact of main body arm beam 1.
Test operation: before test, detected materials is cut into the dumbbell shape test specimen of certain size, then, specimen holder end is placed between two dumbbell shaped chucks 2, by turn bar 4 rotary drive screw rod 3, regulate spacing clamping test specimen between two dumbbell shaped chucks 2, ensure that test specimen slippage can not occur in experimentation.During test, rotate drive screw 3 regulate test specimen axis relative position by turn bar 4, realization overlaps with tensile axis axis, is then connected on cupping machine by main body arm beam 1 by pin-and-hole, can carries out tension test.
Embodiment 1:
A kind of adjustable dumbbell shape test specimen tensile testing jaws, includes the main body arm beam 1 of two parallel cantilever; Be symmetricly set on the dumbbell shaped chuck 2 between main body arm beam 1 liang of cantilever end face; Through main body arm beam 1 cantilever and dumbbell shaped chuck 2, and with dumbbell shaped chuck 2 threaded engagement, the drive screw 3 be rotatably assorted with main body arm beam 1 cantilever; Two through drive screw 3 and with the register pin 5 of drive screw 3 clearance fit; Wherein, crossbeam between main body arm beam 1 liang of parallel cantilever is provided with the pin-and-hole coordinated with testing machine loading end, the end face of one end of dumbbell shaped chuck 2 and the crossbeam of main body arm beam 1 is slidably matched, and the distance between two register pins 5 matches with the length through main body arm beam 1 cantilever; One end that drive screw 3 does not stretch into dumbbell shaped chuck 2 has the through hole axially vertical with drive screw 3, and be provided with turn bar 4 in through hole, turn bar 4 coordinates with via clearance; Main body arm beam 1, dumbbell shaped chuck 2, drive screw 3 and turn bar 4 all adopt aluminum alloy materials; One end of dumbbell shaped chuck 2 and the middle part inner face smooth contact of main body arm beam 1.
Embodiment 2:
A kind of adjustable dumbbell shape test specimen tensile testing jaws, includes the main body arm beam 1 of two parallel cantilever; Be symmetricly set on the dumbbell shaped chuck 2 between main body arm beam 1 liang of cantilever end face; Through main body arm beam 1 cantilever and dumbbell shaped chuck 2, and with dumbbell shaped chuck 2 threaded engagement, the drive screw 3 be rotatably assorted with main body arm beam 1 cantilever; Two through drive screw 3 and with the register pin 5 of drive screw 3 clearance fit; Wherein, crossbeam between main body arm beam 1 liang of parallel cantilever is provided with the pin-and-hole coordinated with testing machine loading end, the end face of one end of dumbbell shaped chuck 2 and the crossbeam of main body arm beam 1 is slidably matched, and the distance between two register pins 5 matches with the length through main body arm beam 1 cantilever; One end that drive screw 3 does not stretch into dumbbell shaped chuck 2 has the threaded hole axially vertical with drive screw 3, is provided with turn bar 4 in threaded hole, turn bar 4 and threaded hole threaded engagement; Main body arm beam 1, dumbbell shaped chuck 2, drive screw 3 and turn bar 4 all adopt aluminum alloy materials; One end of dumbbell shaped chuck 2 and the middle part inner face smooth contact of main body arm beam 1.
Claims (6)
1. an adjustable dumbbell shape test specimen tensile testing jaws, is characterized in that:
Include the main body arm beam (1) of two parallel cantilever;
Be symmetricly set on the dumbbell shaped chuck (2) between main body arm beam (1) two cantilever end face;
Through main body arm beam (1) cantilever and dumbbell shaped chuck (2), and with dumbbell shaped chuck (2) threaded engagement, the drive screw (3) be rotatably assorted with main body arm beam (1) cantilever;
Two through drive screw (3) and with the register pin (5) of drive screw (3) clearance fit;
Wherein, crossbeam between main body arm beam (1) two parallel cantilever is provided with the pin-and-hole coordinated with testing machine loading end, the end face of one end of dumbbell shaped chuck (2) and the crossbeam of main body arm beam (1) is slidably matched, and the distance between two register pins (5) matches with the length through main body arm beam (1) cantilever.
2. adjustable dumbbell shape test specimen tensile testing jaws according to claim 1, it is characterized in that: one end that described drive screw (3) does not stretch into dumbbell shaped chuck (2) has the through hole axially vertical with drive screw (3), be provided with turn bar (4) in through hole, turn bar (4) coordinates with via clearance.
3. adjustable dumbbell shape test specimen tensile testing jaws according to claim 1, it is characterized in that: one end that described drive screw (3) does not stretch into dumbbell shaped chuck (2) has the threaded hole axially vertical with drive screw (3), turn bar (4) is provided with, turn bar (4) and threaded hole threaded engagement in threaded hole.
4. the adjustable dumbbell shape test specimen tensile testing jaws according to Claims 2 or 3, is characterized in that: described main body arm beam (1), dumbbell shaped chuck (2), drive screw (3) and turn bar (4) all adopt aluminum alloy materials.
5. the adjustable dumbbell shape test specimen tensile testing jaws according to claim 1 or 2 or 3, is characterized in that: one end of described dumbbell shaped chuck (2) and the middle part inner face smooth contact of main body arm beam (1).
6. adjustable dumbbell shape test specimen tensile testing jaws according to claim 4, is characterized in that: one end of described dumbbell shaped chuck (2) and the middle part inner face smooth contact of main body arm beam (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520062566.7U CN204422326U (en) | 2015-01-28 | 2015-01-28 | Adjustable dumbbell shape test specimen tensile testing jaws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520062566.7U CN204422326U (en) | 2015-01-28 | 2015-01-28 | Adjustable dumbbell shape test specimen tensile testing jaws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204422326U true CN204422326U (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520062566.7U Expired - Fee Related CN204422326U (en) | 2015-01-28 | 2015-01-28 | Adjustable dumbbell shape test specimen tensile testing jaws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204422326U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596844A (en) * | 2015-01-28 | 2015-05-06 | 南京理工大学 | Adjustable dumbbell-shaped test piece tensile test chuck |
| CN106840859A (en) * | 2015-12-07 | 2017-06-13 | 中国科学院宁波材料技术与工程研究所 | Antarafacial stretching clamp |
| CN110455620A (en) * | 2019-07-31 | 2019-11-15 | 南京理工大学 | A kind of small-sized composite wood anticipates strain fatigue experimental rig |
| CN110646582A (en) * | 2019-08-02 | 2020-01-03 | 南京理工大学 | Variable strain experimental device for test pieces with different sizes |
| CN117554183A (en) * | 2024-01-09 | 2024-02-13 | 西安交通大学 | Angle-adjustable soil tensile strength test device and measuring method thereof |
-
2015
- 2015-01-28 CN CN201520062566.7U patent/CN204422326U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104596844A (en) * | 2015-01-28 | 2015-05-06 | 南京理工大学 | Adjustable dumbbell-shaped test piece tensile test chuck |
| CN106840859A (en) * | 2015-12-07 | 2017-06-13 | 中国科学院宁波材料技术与工程研究所 | Antarafacial stretching clamp |
| CN110455620A (en) * | 2019-07-31 | 2019-11-15 | 南京理工大学 | A kind of small-sized composite wood anticipates strain fatigue experimental rig |
| CN110455620B (en) * | 2019-07-31 | 2022-03-04 | 南京理工大学 | Small-size combined material decides strain fatigue test device |
| CN110646582A (en) * | 2019-08-02 | 2020-01-03 | 南京理工大学 | Variable strain experimental device for test pieces with different sizes |
| CN117554183A (en) * | 2024-01-09 | 2024-02-13 | 西安交通大学 | Angle-adjustable soil tensile strength test device and measuring method thereof |
| CN117554183B (en) * | 2024-01-09 | 2024-03-22 | 西安交通大学 | Angle-adjustable soil tensile strength test device and measuring method thereof |
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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: 20150624 Termination date: 20180128 |