CN109738291A - Multifunctional curved test specimen garter extension pressurized tests device - Google Patents
Multifunctional curved test specimen garter extension pressurized tests device Download PDFInfo
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- CN109738291A CN109738291A CN201910187831.7A CN201910187831A CN109738291A CN 109738291 A CN109738291 A CN 109738291A CN 201910187831 A CN201910187831 A CN 201910187831A CN 109738291 A CN109738291 A CN 109738291A
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- 238000012360 testing method Methods 0.000 title claims abstract description 135
- 229910000639 Spring steel Inorganic materials 0.000 claims description 4
- 230000006378 damage Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009865 steel metallurgy Methods 0.000 description 1
Abstract
The invention discloses a kind of multifunctional curved test specimen garter extension pressurized tests devices, it include: identical two clamping heads of structure, test specimen two ends carry out X-direction stretching or pressurized tests by clamping head clamping described in one of them respectively, the clamping head includes: crust of the device and self-clamping module, the self-clamping module includes at least two submodules, each submodule head and the tail connection forms chain structure, each submodule can rotate an angle on YZ axial plane, the head end of the first submodule of the chain structure is connected in described device shell, the end n submodules of the chain structure are connect with test specimen, n submodules in end include that upper clamping refers to and lower clamping refers to, and it is described it is upper clamping refer to and it is lower clamping refer between form clamp port, the caliber size of the clamp port is adjustable, test specimen is logical The clamp port is crossed to be gripped.Applicability of the present invention is wide, and clamping is quick and firm, does not destroy test specimen.
Description
Technical field
The present invention relates to engineering detecting experimental technique fields more particularly to a kind of multifunctional curved test specimen garter extension to be pressurized
Experimental rig.
Background technique
Cupping machine is also material stretch test machine, instron etc., be collection computer control, automatic measurement,
The mechanics detection device of new generation that data acquisition, screen are shown, test result processing is integrated, be widely used between metering,
The various industries such as rubber plastic, iron and steel metallurgy, machine-building, electronic apparatus, automobile production, petrochemical industry.Common puller system
The mode of clamping workpiece is generally the clamping close to each other to realization to workpiece of two pieces of fixture blocks, and it is solid to be chiefly used in reinforcing bar, dog bone etc.
The tension test of the material of setting shape, the section of test specimen and shape need are higher, for test specimen (such as square steel limb of arc section
The arc test specimen that arc test specimen that portion is cut, round tube test specimen are cut), testing machine be often difficult to clamping test pieces or occur sliding or
It is that test front clamp mode there can be very big destruction to the cross sectional shape of test specimen, axis pulling experiment is enabled to be difficult to carry out.Therefore, how right
It is the technical problem for needing urgently to capture at present that the component in the section of arc section and other irregular shapes, which carries out tension test,.
Therefore, need that a kind of applicability is wide, clamping it is firm and effectively, the multifunctional curved examination of damage will not be caused to test specimen
Part garter extension pressurized tests device.
Summary of the invention
The object of the present invention is to provide a kind of applicability is wide, clamping is firm and effectively, and the more of damage will not be caused to test specimen
Function curved surface test specimen garter extension pressurized tests device.
To achieve the goals above, technical solution provided by the invention are as follows: a kind of multifunctional curved test specimen clamping drawing is provided
Stretch pressurized tests device, comprising: identical two clamping heads of structure, test specimen two ends pass through one of them described clamping head folder respectively
X-direction stretching or pressurized tests tightly are carried out, the clamping head includes: crust of the device and self-clamping module, the self-clamping module
Including at least two submodules, each submodule head and the tail connection forms chain structure, and each submodule can be in YZ
An angle is rotated in plane, the head end of the first submodule of the chain structure is connected in described device shell, institute
The end n submodules for stating chain structure can grip test specimen, wherein n is the nature more than or equal to 1
Number.
The end n of the chain structure submodules include that upper clamping refers to and lower clamping refers to, and the upper clamping
Finger and lower clamping form clamp port between referring to, the caliber size of the clamp port is adjustable, and test specimen is pressed from both sides by the clamp port
Hold fixation.
Each clamping head includes two self-clamping modules, and be separately positioned on the two sides of test piece end to test specimen into
Row grips.
The end n submodules further include the clamping palm, and the lower clamping, which refers to, slaps integral structure with the clamping, described
Clamping palm is additionally provided with guide post, and the beginning referred to is above clamped described in the corresponding guide post and is additionally provided with guide sleeve, the upper clamping, which refers to, to be passed through
The guide sleeve is connected on the guide post, and the upper clamping refers to and can move up and down on the guide post to adjust clamp port
Caliber size.
It is equably laid with threaded hole through the upper the upper surface and the lower surface referred to that clamps, is matched on each threaded hole
It is equipped with bolt, the bolt can screw in the threaded hole and be contradicted with the upper surface of test specimen.
The two neighboring submodule is carried out hinged by bolt key.
The upper clamping refers to and lower clamping refers to be spring steel plate structure.
The medial surface of the YZ plane of described device shell inwardly offers mounting groove towards X-direction, described device shell
Two lateral surfaces of XZ plane offer the notch for being through to the mounting groove, the head end of the first submodule towards Y direction
It is hinged in the notch.
The upper clamping refers to and the lower quantity referred to that clamps is multiple, and parallel laying along the x axis, through each described
The upper the upper surface and the lower surface referred to that clamps equably is laid with threaded hole, is configured with bolt, the spiral shell on each threaded hole
Bolt can screw in the threaded hole and be contradicted with the surface of test specimen.
Compared with prior art, the multifunctional curved test specimen garter extension pressurized tests device of the present invention, the self-clamping module
Including at least two submodules, each submodule head and the tail connection forms chain structure, and each submodule can be in YZ
Axial plane rotates an angle, and the head end of the first submodule of the chain structure is connected in described device shell, institute
The end n submodules for stating chain structure connects with test specimen, and n a submodules in end include that upper clamp refers to and lower clamping
Refer to, and it is described it is upper clamping refer to and it is lower clamping refer between form clamp port, the caliber size of the clamp port is adjustable, and test specimen passes through institute
Clamp port is stated to be gripped.Therefore the shape of an adaptation surface of test piece shape can be coiled by the different submodules
Shape, preferably clamping surface of test piece, therefore, the present invention can not only clamp traditional plane test specimen, more can clamp conventional brace not
The curved surface test specimen that can be clamped.
Through the following description and in conjunction with the attached drawings, the present invention will become more fully apparent, these attached drawings are used to explain the present invention
Embodiment.
Detailed description of the invention
Fig. 1 show the signal of one embodiment of the multifunctional curved test specimen garter extension pressurized tests device of the present invention
Figure.
Fig. 2 show an exploded view of multifunctional curved test specimen garter extension pressurized tests device as shown in Figure 1.
Fig. 3 show another exploded view of multifunctional curved test specimen garter extension pressurized tests device as shown in Figure 1.
Fig. 4 show the view of a side of self-clamping module.
Specific embodiment
The embodiment of the present invention described referring now to the drawings, similar element numbers represent similar element in attached drawing.Such as
Upper described, as shown in figures 1-4, the embodiment of the present invention provides a kind of multifunctional curved test specimen garter extension pressurized tests device
100, it can be used for various curved surface test specimens, the tension test of rectangular coupon, comprising: identical two clamping heads 1 of structure, 20 liang of test specimen
End is clamped by clamping head 1 described in one of them carry out X-direction stretching or pressurized tests respectively, in the present embodiment, test specimen
20 be dog bone test specimen, and the surface shape of test specimen is arc, and the clamping head 1 includes: crust of the device 2 and self-clamping module 3, such as Fig. 2
With 3 shown in embodiment, the self-clamping module 3 includes at least two submodules 31 and 32, and two submodules 31 and 32 are first
Tail connects to form chain structure, and in the present embodiment, which is hinged, each son of head and the tail
Module can rotate an angle on YZ axial plane, in practical application, can increase submodule according to the shape of test specimen 20
Quantity, to adapt to the shape of different test specimens, therefore no matter the surface shape of test specimen 20 is arc, waveform or other shapes,
Each submodule of the self-clamping module 3 of the invention can be well adapted for the trend of the surface shape of these test specimens, can
To be adjacent to the surface of these test specimens well, the first submodule of the chain structure i.e. as shown in Figures 2 and 3 shown in son
The head end of module 31 is connected in described device shell 2, in fact, the entire self-clamping module 3 is set to described device shell 2
Interior, the end n submodules of the chain structure can grip test specimen 20, wherein n is more than or equal to 1
Natural number, specifically, n=1 in the present embodiment, i.e., submodule 32 as shown in Figures 2 and 3 grips test specimen 20.
In one embodiment, submodule 32 include upper clamping as shown in Figure 4 refer to 321 and lower clamping refer to 322, and it is described on
Clamping refer to 321 and lower clamping refer between 322 formation clamp port 323, the caliber size of the clamp port 323 is adjustable, and test specimen 20 is logical
The clamp port 323 is crossed to be gripped.It should be noted that it is described it is upper clamping refer to 321 and it is lower clamping refer to 322 opposite face
The groove perpendicular to X-direction can be set with increasing friction force.
It should be noted that the X-direction, Y direction and the Z-direction that occur in each embodiment of the present invention are in order to more
Easily the relative position or direction relations of each component are described and are configured, is not limited in practical applications
It, can be with flexible Application in this.
In one embodiment, as shown in Figures 2 and 3, each clamping head 1 includes two self-clamping modules 3, and respectively
The two sides that 20 end of test specimen is arranged in grip test specimen 20.By in this present embodiment, test specimen 20 is dog-bone shapes
Arc test specimen is that both ends width is wider than middle section, by two self-clamping modules 3 to the two sides of 20 end of test specimen to examination
Part 20 is gripped, and is that is to say the two sides shape if 20 end of test specimen to further adapt to test specimen of different shapes
Shape has biggish difference, can the two sides to test piece end more targetedly clamped, therefore be arranged two clampings
Module 3 is in order to enable the present invention can adapt to test specimen of different shapes with more wide applicability.
In one embodiment, as shown in Figure 3,4, the end n submodules 32 further include the clamping palm 324, under described
Clamping refers to that 322 slap 324 integral structures with the clamping, and guide post 325, the corresponding guide post 325 are additionally provided on the clamping palm 324
The upper clamping refers to that 321 beginning is additionally provided with guide sleeve 326, and the upper clamping refers to that 321 are connected to described lead by the guide sleeve 326
On column 325, and it is described it is upper clamping refer to 321 can be moved up and down on the guide post 325 it is big to adjust the bore of clamp port 323
It is small.In the present embodiment, the guide post 325 is preset with sufficiently large size in vertical direction, can fit in a wide range as far as possible
Answer the test specimen of different shape and size, it should be noted that in the present embodiment, n=1, it is inferred that, when n value is bigger
When, it can adapt to the more complicated test specimen of surface texture.
In embodiment as shown in Figures 2 and 3, refer to that 321 the upper surface and the lower surface is equably laid through the upper clamping
There is threaded hole 327, is configured with bolt 328 on each threaded hole 327, the bolt 328 can screw in 327 hole of screw thread simultaneously
It is contradicted with the surface of test specimen 20.The threaded hole 327 and bolt 328, which is arranged, to carry out very well test specimen of different shapes
Ground is fixed, because the bolt 328 can screw in the threaded hole 327, the upper surface directly with test specimen 20 is contradicted, and is generated
Powerful frictional force, and since the quantity of the threaded hole 327 and bolt 328 can be set multiple, it can ensure described
The frictional force on bolt 328 and 20 surface of test specimen is greater than the pulling force or pressure that test specimen 20 is subject to.In addition, it should be noted that, being
Prevent the surface of the terminal destruction test specimen 20 of the bolt 328, and in order to more can increasing friction force, can in the bolt
328 end contacts after connecting a gasket with the upper surface of test specimen 20, and the area of gasket can be slightly larger than the end of bolt 328
The area of end face, and the rubber sheet gasket that material can be big for coefficient of friction.
Above-described embodiment can also extend one embodiment: the upper surface and the lower surface referred to through the upper clamping is equal
It is laid with threaded hole evenly, meanwhile, it is equally equably laid with threaded hole through the lower the upper surface and the lower surface referred to that clamps,
Each bolt can refer to also cross the upper clamping and lower clamping refers to upper corresponding threaded hole, when test specimen enters the clamping
Mouth is when being clamped, test specimen be entirely by the upper clamping refer to and lower clamping refer between pressure be clamped, pass through spiral shell
Bolt locks the clamp port, and then carries out stretching or pressurized tests, and specifically, the upper clamping refers to and lower clamping refers to
Inside be to be locked by bolt, test specimen enter the clamp port when, be by being pressed from both sides on the outside of the clamp port
Tightly.
Above-described embodiment can also extend another embodiment: the upper surface and the lower surface referred to through the upper clamping
It is equably laid with threaded hole, meanwhile, screw thread is equally equably laid with through the lower the upper surface and the lower surface referred to that clamps
Hole, each threaded hole configure a bolt, each bolt enter a threaded hole directly with the upper table of test specimen
Face or lower surface are contradicted, and in order to more can increasing friction force, can the bolt end connect a gasket after
Upper surface or following table face contact with test specimen, the area of gasket can be slightly larger than the area of the distal end faces of bolt, and material
It can be the big rubber sheet gasket of coefficient of friction.
In embodiment as shown in Figures 2 and 3, the two neighboring submodule, that is, submodule 31 and 32 is carried out by bolt key
Hingedly.It can hingedly allow the two neighboring submodule that can relatively rotate an angle by bolt key progress, to adapt to
The shape on the surface of test specimen 20.Carrying out hinged benefit by bolt key is to be connected firmly and flexibly, can rapidly be assembled
Or disassembly.
In one embodiment, as shown in Figure 2,3, it is described it is upper clamping refer to 321 and it is lower clamping refer to that 322 be that Elastic Steel is hardened
Structure.By by it is described it is upper clamping refer to 321 and it is lower clamping 322 refer to be set as spring steel plate structure, can allow it is described it is upper clamping refer to 321
Refer to 322 adaptations test specimen of different shapes with lower clamping, and when the upper clamping refer to 321 and lower clamping refer to 322 for spring steel plate
When structure, the stronger of specimen holder of different shapes can not allowed to be also easy to produce during stretching or pressurized tests
Displacement.
In one embodiment, as shown in Figure 2,3, the medial surface of the YZ plane of described device shell 2, towards X-direction to
Inside offers mounting groove 21, and two lateral surfaces of the XZ plane of described device shell 2 offer towards Y direction and are through to institute
The notch 22 of mounting groove 21 is stated, the head end of the submodule 31 is hinged in the notch 22.In practical applications, in order to enable
The rotation angle of the submodule 31 is bigger, and the notch 22 has run through the two sides of the XZ plane of described device shell 2 simultaneously
The upper side wall of wall and X/Y plane, therefore for dust-proof, insect prevention and keep equipment more beautiful and generous, the needs of notch 22 are matched
Set corresponding plastic shell.It should be noted that the opposite side of two clamping heads 1 is in description in as shown in Figures 2 and 3
It is limited to the medial surface of the YZ plane of described device shell 2.
It,, can be with when needing huge chucking power if the size of the surface area of test specimen 20 is larger in one embodiment
Be arranged such: the upper clamping refer to 321 and lower clamping refer to that 322 quantity is multiple, and it is parallel along the x axis lay, run through
Each upper clamping refers to that 321 the upper surface and the lower surface is equably laid with threaded hole 327, on each threaded hole 327
Configured with bolt 328, the bolt 328 can screw in the threaded hole 327 and be contradicted with the surface of test specimen 20.Therefore pass through
Multiple upper clampings are arranged in parallel and refer to 321 and lower clamping when referring to 322, are on the one hand adapted to the more complicated examination of surface texture
Part 20, while the biggish test specimen 20 of size surface area can also be clamped securely.
To sum up, due in the multifunctional curved test specimen garter extension pressurized tests device of the present invention, each clamping head
Including two self-clamping modules, test specimen can be gripped simultaneously from the two sides of test piece end, in addition, each described
Self-clamping module may include multiple submodule, and multiple submodule forms chain structure, the first submodule of the chain structure
The head end of block is connected in described device shell, and the end n submodules of the chain structure are connect with test specimen, and being can
Securely to be clamped by multiple submodule to test specimen, and multiple submodule can the perfect surface shape for adapting to different test specimens
Shape, and simultaneously X-direction can also arrange it is multiple it is upper clamping refer to and it is lower clamping refer to, therefore, the test specimen of various shape and size
What can be clamped is very secured, will not generate displacement during stretching and pressurized tests.
The above disclosure is only a preferred embodiment of the invention, cannot limit the right of the present invention with this certainly
Range, therefore according to equivalent variations made by scope of the present invention patent, it is still within the scope of the present invention.
Claims (9)
1. a kind of multifunctional curved test specimen garter extension pressurized tests device characterized by comprising identical two folders of structure
Head is held, test specimen two ends carry out X-direction stretching or pressurized tests, the folder by clamping head clamping described in one of them respectively
Holding head includes: crust of the device and self-clamping module, and the self-clamping module includes at least two submodules, each submodule head and the tail
Connection forms chain structure, and each submodule can rotate an angle in YZ plane, the chain structure it is first
The head end of the submodule is connected in described device shell, and the end n submodules of the chain structure can be to examination
Part is gripped, wherein n is the natural number more than or equal to 1.
2. multifunctional curved test specimen garter extension pressurized tests device as described in claim 1, which is characterized in that the chain
The end n of the structure submodules include that upper clamping refers to and lower clamping refers to, and the upper clamping refers to and between lower clamping refers to
Clamp port is formed, the caliber size of the clamp port is adjustable, and test specimen is gripped by the clamp port.
3. multifunctional curved test specimen garter extension pressurized tests device as described in claim 1, which is characterized in that each described
Clamping head includes two self-clamping modules, and the two sides for being separately positioned on test piece end grip test specimen.
4. multifunctional curved test specimen garter extension pressurized tests device as described in claim 1, which is characterized in that end n
The submodule further includes the clamping palm, and the lower clamping, which refers to, slaps integral structure with the clamping, and the clamping palm is additionally provided with
Guide post above clamps the beginning referred to described in the corresponding guide post and is additionally provided with guide sleeve, and upper clamp refers to and be connected to by the guide sleeve
On the guide post, and the upper clamping refers to and can move up and down on the guide post to adjust the caliber size of clamp port.
5. such as the described in any item multifunctional curved test specimen garter extension pressurized tests devices of Claims 1 to 4, feature exists
In the upper surface and the lower surface referred to through the upper clamping is equably laid with threaded hole, is configured on each threaded hole
Bolt, the bolt can screw in the threaded hole and be contradicted with the surface of test specimen.
6. such as the described in any item multifunctional curved test specimen garter extension pressurized tests devices of Claims 1 to 4, feature exists
In the two neighboring submodule is carried out hinged by bolt key.
7. such as the described in any item multifunctional curved test specimen garter extension pressurized tests devices of Claims 1 to 4, feature exists
In the upper clamping refers to and lower clamping refers to be spring steel plate structure.
8. such as the described in any item multifunctional curved test specimen garter extension pressurized tests devices of Claims 1 to 4, feature exists
In the medial surface of the YZ plane of described device shell inwardly offers mounting groove towards X-direction, and the XZ of described device shell is flat
Two lateral surfaces in face, the notch for being through to the mounting groove is offered towards Y direction, and the head end of the first submodule is hinged
In the notch.
9. such as the described in any item multifunctional curved test specimen garter extension pressurized tests devices of Claims 1 to 4, feature exists
In the upper clamping refers to and the lower quantity referred to that clamps is multiple, and parallel laying along the x axis, runs through each upper folder
The upper surface and the lower surface for holding finger is equably laid with threaded hole, is configured with bolt on each threaded hole, the bolt can
It screws in the threaded hole and is contradicted with the upper surface of test specimen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910187831.7A CN109738291A (en) | 2019-03-13 | 2019-03-13 | Multifunctional curved test specimen garter extension pressurized tests device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910187831.7A CN109738291A (en) | 2019-03-13 | 2019-03-13 | Multifunctional curved test specimen garter extension pressurized tests device |
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| Publication Number | Publication Date |
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| CN109738291A true CN109738291A (en) | 2019-05-10 |
Family
ID=66370387
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| CN201910187831.7A Pending CN109738291A (en) | 2019-03-13 | 2019-03-13 | Multifunctional curved test specimen garter extension pressurized tests device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111157704A (en) * | 2020-01-20 | 2020-05-15 | 中国地质大学（武汉） | Vertical structural surface grouting test device and test method |
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