CN205749108U - A kind of dynamic tensile test anti-slip cramping apparatus device - Google Patents
A kind of dynamic tensile test anti-slip cramping apparatus device Download PDFInfo
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- CN205749108U CN205749108U CN201620405649.6U CN201620405649U CN205749108U CN 205749108 U CN205749108 U CN 205749108U CN 201620405649 U CN201620405649 U CN 201620405649U CN 205749108 U CN205749108 U CN 205749108U
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- 238000009864 tensile test Methods 0.000 title claims abstract description 8
- 238000012360 testing method Methods 0.000 claims abstract description 70
- 238000009434 installation Methods 0.000 claims description 23
- 239000000463 material Substances 0.000 abstract description 20
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 239000011888 foil Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000009514 concussion Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
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Abstract
This utility model relates to a kind of dynamic tensile test anti-slip cramping apparatus device, including the first fixture being connected with testing machine respectively and the second fixture, first fixture and the second fixture are connected with the both ends of test specimen respectively, first fixture includes the first connector that the first jig main body and the one end with the first jig main body are connected, the first groove for installing test specimen is offered on first jig main body, one end away from the first connector of first groove offers the first opening, second fixture includes the second connector that the second jig main body and the one end with the second jig main body are connected, the second groove for installing test specimen is offered on second jig main body, one end away from the second connector of second groove offers the second opening.The not only simple operation of this device, and effectively prevent the skidding of the test specimen of the material (such as high-strength steel material) that the skidding of test specimen, particularly hardness are higher when tension test, improve the quality of test signal.
Description
Technical field
The invention belongs to material mechanical performance test and representational field, for the industry such as automobile, aviation, be specifically related to a kind of dynamic tensile test anti-slip cramping apparatus device.
Background technology
In simulating car collision, material mechanical performance characterizes the quality being conducive to promoting automobile CAE model accurately.Major part vehicle material has obvious strain rate dependency, by quasistatic mechanical response cannot its deformation under Dynamic Loading Condition of accurate simulation and failure procedure, material dynamic mechanical test method becomes the key accurately obtaining material dynamic mechanical behavior.For common vehicle materials such as high-strength steel, macromolecular material, plastics, often there is oscillatory occurences in force signal under middle and high strain rate loads test, and the reflection of this oscillator signal is the Whole Response testing measurement system, rather than material response to be caught.Signal concussion each key element height correlation such as size and material type, test equipment, jig Design and loading environment.For given test equipment, test object and loading environment, thus it is possible to vary or the means improved are exactly the light-weight design of machinery dynamometry link.Substantially, test connecting link structure is the compactest, and quality is the least, and rigidity is the highest, then the dynamic measuring signal quality obtained is the best, and concussion problem is the least.On the other hand, material high speed mechanics is tested frequent generating material tablet and is clamped not strongly, and skids, and exemplar comes off, and causing cannot enforcement dynamic deformation tensile loads effective to sample.Traditional fixture is by clamping to increase frictional force test specimen applying normal force to test specimen with linear grip block; the material that case hardness is higher is often rubbed not enough skid condition; then in clamping process, the clip position of material may be caused damage for fragile material, cause material test specimen fracture cannot occur at middle measuring section.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, utilizes a kind of dynamic tensile test anti-slip cramping apparatus device, and when being prevented effectively from test, test specimen skids.
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that
A kind of dynamic tensile test anti-slip cramping apparatus device, including the first fixture being connected with testing machine respectively and the second fixture, described first fixture and the second fixture are connected with the both ends of test specimen respectively, described first fixture includes the first connector that the first jig main body and the one end with described first jig main body are connected, the first groove for installing described test specimen is offered on described first jig main body, one end away from described first connector of described first groove offers the first opening, described second fixture includes the second connector that the second jig main body and the one end with described second jig main body are connected, the second groove for installing described test specimen is offered on described second jig main body, one end away from described second connector of described second groove offers the second opening.
Further, the groove bottom of described first groove is provided with the first pilot pin.
Further, the width of described first opening is less than the width of described first groove.
Specifically, the both sides of the edge of described first opening extend to the direction of described first groove and form the first lobe.
Further, the groove bottom of described second groove is provided with the second pilot pin.
Further, the width of described second opening is less than the width of described second groove, and the both sides of the edge of described second opening extend to the direction of described second groove and form the second lobe.
Further, described first connector includes the first connecting portion that one end is connected and the fixed part being connected with the other end of described first connecting portion with described first jig main body.
Further, described anti-slip cramping apparatus device also includes the load bar being connected with described second connector, described second connector includes the installation portion that the second connecting portion being connected with described second jig main body and one end are connected with described second connecting portion, and described installation portion can be arranged with described load bar slidably along the length direction of described load bar.
Further, the lateral surface of described installation portion is provided with screw thread, and described load bar is provided with the nut matched with described screw thread, and described installation portion is connected by described screw thread and nut with load bar.
Specifically, described load bar has the radial direction of hollow cavity and described load bar and offers through hole, and described nut is movably arranged as in described through hole, and the other end of described installation portion is positioned at described hollow cavity and is connected with described nut thread.
Due to the enforcement of above technical scheme, this utility model compared with prior art has the advantage that
The not only simple operation of this utility model device, and effectively prevent the skidding of the test specimen of the test specimen material that the skidding of test specimen, particularly hardness are higher when tension test (such as high-strength steel material).
The test specimen of this utility model device is easier for installation fast.
This utility model device is compared with the chuck that testing machine carries, and this apparatus structure is simple, and fixture quality is lighter, and connecting link is more compact, and measurement links rigidity is higher, effectively reduces the vibration measuring force signal, dynamic test force signal better quality.By directly pasting foil gauge on device, it is achieved the repeated measure of dynamic test force signal, reduce labor intensity, improve testing efficiency and signal quality.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of this utility model anti-slip cramping apparatus device；
Fig. 2 is the front view of this utility model anti-slip cramping apparatus device；
Fig. 3 is the side view of this utility model anti-slip cramping apparatus device；
Fig. 4 is the axonometric chart of the first fixture of this utility model anti-slip cramping apparatus device；
Fig. 5 is the axonometric chart of the second fixture of this utility model anti-slip cramping apparatus device；
Fig. 6 is the axonometric chart of the load bar of this utility model anti-slip cramping apparatus device
In figure: 1, the first fixture；101, the first jig main body；102, the first groove；103, the first opening；104, the first pilot pin；105, the first lobe；106, the first connecting portion；107, fixed part；2, the second fixture；201, the second jig main body；202, the second groove；203, the second opening；204, the second pilot pin；205, the second lobe；206, the second connecting portion；207, installation portion；3, test specimen；4, load bar；5, nut.
Detailed description of the invention
Below in conjunction with Figure of description, this utility model is described further:
nullAs shown in accompanying drawing 1 ~ 6，A kind of dynamic tensile test anti-slip cramping apparatus device，Including the first fixture 1 and the second fixture 2 being connected with testing machine respectively，First fixture 1 and the second fixture 2 both ends with the test specimen 3 of test to be tensioned respectively are connected，First fixture 1 includes the first connector that the first jig main body 101 and the one end with the first jig main body 101 are connected，The first groove 102 for installing test specimen 3 is offered on first jig main body 101，One end away from the first connector of first groove 102 offers the first opening 103，Second fixture 2 includes the second connector that the second jig main body 201 and the one end with the second jig main body 201 are connected，The second groove 202 for installing test specimen 3 is offered on second jig main body 201，One end away from the second connector of second groove 202 offers the second opening 203.
In order to more preferably prevent test specimen 3 from skidding in process of the test, being provided with the first pilot pin 104 in the groove bottom of the first groove 102, the first pilot pin 104 is arranged on the approximate centre position of the first groove 102.The width of the first opening 103 is less than the width of the first groove 102, and the both sides of the edge of the first opening 103 extend to the direction of the first groove 102 and form the first lobe 105.
Same, the groove bottom of the second groove 202 is provided with the second pilot pin 204, the second pilot pin 204 is arranged on the approximate centre position of the second groove 202.The width of the second opening 203 is less than the width of the second groove 202, and the both sides of the edge of the second opening 203 extend to the direction of the second groove 202 and form the second lobe 205.So, when clamping test specimen 3, aperture is offered at the two ends of test specimen 3 respectively, and the first pilot pin 104 and the second pilot pin 204 are each passed through the aperture at test specimen 3 two ends, is fixed on by test specimen 3 further on the first fixture 1 and the second fixture 2, it is to avoid skid.
First connector of anti-slip cramping apparatus device of the present utility model includes the first connecting portion 106 that one end and the first jig main body 101 are connected and the fixed part 107 being connected with the other end of the first connecting portion 106.During tension test, on the side of strain gauge adhesion and the first connecting portion 106, fixed part 107 is fixing with the base of testing machine to be connected.
Anti-slip cramping apparatus device of the present utility model also includes the load bar 4 being connected with the second connector, second connector includes the installation portion 207 that the second connecting portion 206 being connected with the second jig main body 201 and one end are connected with the second connecting portion 206, and installation portion 207 can be arranged with load bar 4 slidably along the length direction of load bar 4.The cross-sectional area of the second connecting portion 206 is more than the cross-sectional area of installation portion 207, also greater than the cross-sectional area of load bar 4.
Specifically, the lateral surface of installation portion 207 is provided with screw thread, and load bar 4 is provided with the nut 5 matched with this screw thread, and installation portion 207 is connected by screw thread and nut with load bar 4.
In this example, load bar 4 has the radial direction of hollow cavity and load bar 4 and offers through hole, and nut 5 is movably arranged as in through hole, and the other end of installation portion 207 is positioned at hollow cavity and threadeds with nut 5.
Installation portion 207 is coaxially disposed with load bar 4.
During tension test, load bar 4 is connected with the loading head of testing machine, regulates installation portion 207 by nut 5 and moves along the length direction of load bar 4, and then adapts to the test specimen 3 of different length.
The operation principle of this utility model anti-slip cramping apparatus device:
The fixed part 107 of the first fixture 1 is fixedly installed on the base of testing machine and fixes, load bar 4 is connected with the loading head of testing machine, the both ends clamping of test specimen 3, in the first groove 102 of the first jig main body 101 and the second groove 202 of the second jig main body 201, is further advanced by the first pilot pin 104 and the second pilot pin 205 and the first fixture 1 and the second fixture 2 is fixed.On the other hand, installation portion 207 is connected with load bar 4 by nut 5, and nut 5 regulates installation portion 207 and moves along load bar 4 length direction, to adapt to the test specimen 3 of different length.During test, pasting foil gauge in the side of the first connecting portion 106, load bar 4 is loaded by the loading head of testing machine, and then realizes the tensile loads to test specimen 3, and foil gauge realizes the measurement to dynamic tensile load.
In sum, this utility model anti-slip cramping apparatus device has the advantage that
(1) chuck that this device is carried by groove and pilot pin alternate test machine, not only simple operation, effectively prevent test specimen skidding of the test specimen of the material that the skidding of test specimen, particularly hardness are higher when tension test；
(2) test specimen of this device is easier for installation fast；
(3) this device is compared with the chuck that testing machine carries, and this apparatus structure is simple, and fixture quality is lighter, and connecting link is more compact, and measurement links rigidity is higher, effectively reduces the vibration measuring force signal, dynamic test force signal better quality.By directly pasting foil gauge on device, it is achieved the repeated measure of dynamic test force signal, reduce labor intensity, improve testing efficiency.
Above this utility model is described in detail; its object is to allow the personage being familiar with this art will appreciate that content of the present utility model and to be carried out; protection domain of the present utility model can not be limited with this; all equivalence changes made according to spirit of the present utility model or modification, all should contain in protection domain of the present utility model.
Claims (10)
1. a dynamic tensile test anti-slip cramping apparatus device, including the first fixture being connected with testing machine respectively and the second fixture, described first fixture and the second fixture are connected with the both ends of test specimen respectively, it is characterized in that: described first fixture includes the first connector that the first jig main body and the one end with described first jig main body are connected, the first groove for installing described test specimen is offered on described first jig main body, one end away from described first connector of described first groove offers the first opening, described second fixture includes the second connector that the second jig main body and the one end with described second jig main body are connected, the second groove for installing described test specimen is offered on described second jig main body, one end away from described second connector of described second groove offers the second opening.
Anti-slip cramping apparatus device the most according to claim 1, it is characterised in that: it is provided with the first pilot pin in the groove bottom of described first groove.
Anti-slip cramping apparatus device the most according to claim 1 and 2, it is characterised in that: the width of described first opening is less than the width of described first groove.
Anti-slip cramping apparatus device the most according to claim 3, it is characterised in that: the both sides of the edge of described first opening extend to the direction of described first groove and form the first lobe.
Anti-slip cramping apparatus device the most according to claim 1, it is characterised in that: it is provided with the second pilot pin in the groove bottom of described second groove.
Anti-slip cramping apparatus device the most according to claim 1 or 5, it is characterised in that: the width of described second opening is less than the width of described second groove, and the both sides of the edge of described second opening extend to the direction of described second groove and form the second lobe.
Anti-slip cramping apparatus device the most according to claim 1, it is characterised in that: described first connector includes the first connecting portion that one end is connected and the fixed part being connected with the other end of described first connecting portion with described first jig main body.
Anti-slip cramping apparatus device the most according to claim 1, it is characterized in that: described anti-slip cramping apparatus device also includes the load bar being connected with described second connector, described second connector includes the installation portion that the second connecting portion being connected with described second jig main body and one end are connected with described second connecting portion, and described installation portion can be arranged with described load bar slidably along the length direction of described load bar.
Anti-slip cramping apparatus device the most according to claim 8, it is characterised in that: the lateral surface of described installation portion is provided with screw thread, and described load bar is provided with the nut matched with described screw thread, and described installation portion is connected by described screw thread and nut with load bar.
Anti-slip cramping apparatus device the most according to claim 9, it is characterized in that: described load bar has the radial direction of hollow cavity and described load bar and offers through hole, described nut is movably arranged as in described through hole, and the other end of described installation portion is positioned at described hollow cavity and is connected with described nut thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620405649.6U CN205749108U (en) | 2016-05-06 | 2016-05-06 | A kind of dynamic tensile test anti-slip cramping apparatus device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620405649.6U CN205749108U (en) | 2016-05-06 | 2016-05-06 | A kind of dynamic tensile test anti-slip cramping apparatus device |
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| Publication Number | Publication Date |
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| CN205749108U true CN205749108U (en) | 2016-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620405649.6U Expired - Fee Related CN205749108U (en) | 2016-05-06 | 2016-05-06 | A kind of dynamic tensile test anti-slip cramping apparatus device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969974A (en) * | 2017-03-22 | 2017-07-21 | 安徽正钧信息科技有限公司 | A kind of grip device of test mechanical performance |
| CN114047079A (en) * | 2021-12-24 | 2022-02-15 | 西北工业大学 | Alloy structural component testing device and method |
-
2016
- 2016-05-06 CN CN201620405649.6U patent/CN205749108U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106969974A (en) * | 2017-03-22 | 2017-07-21 | 安徽正钧信息科技有限公司 | A kind of grip device of test mechanical performance |
| CN114047079A (en) * | 2021-12-24 | 2022-02-15 | 西北工业大学 | Alloy structural component testing device and method |
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| 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 |
Granted publication date: 20161130 Termination date: 20210506 |
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| CF01 | Termination of patent right due to non-payment of annual fee |