CN107167372A - A kind of fixture for filamentary material tension test - Google Patents
A kind of fixture for filamentary material tension test Download PDFInfo
- Publication number
- CN107167372A CN107167372A CN201710503301.XA CN201710503301A CN107167372A CN 107167372 A CN107167372 A CN 107167372A CN 201710503301 A CN201710503301 A CN 201710503301A CN 107167372 A CN107167372 A CN 107167372A
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- CN
- China
- Prior art keywords
- block
- movable clip
- directive wheel
- directive
- main body
- 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.)
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Classifications
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- 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
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive 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
- G01N2203/0016—Tensile or compressive
- G01N2203/0017—Tensile
Abstract
The invention belongs to mechanical test technical field, disclose a kind of fixture for filamentary material tension test, including structure is identical and centrosymmetric upper clamp and lower clamp, constituted by jig main body and the directive wheel being installed on it, block, movable clip block, guide rail rod and ejector pin；Upper and lower two directive wheels have the public tangent plane of vertical direction and are divided into the public tangent plane both sides, two blocks are located between two directive wheels and are in contact respectively with two directive wheels, formed between movable clip block and block with the tangent clamping face of directive wheel, the clamping face while parallel with the public tangent plane of two directive wheels；Movable clip block is promoted by ejector pin and is moved and spacing by guide rail rod.The present invention utilizes the tangency location and the wheel rim of directive wheel projection between directive wheel, and clamp the thread sample end for bypassing directive wheel by the frictional force between movable block and block, thread sample is found position reference, and ensure thread sample in process of the test only by the drawing force of vertical direction.
Description
Technical field
It is to be related to a kind of effective clamping to filamentary material specifically the invention belongs to mechanical test technical field, with
Carry out the fixture of the Material mechanics test such as stretching, creep, relaxation, fatigue.
Background technology
Draw wire fatigue is the problem of commonly encountering in machinery, building, space flight, aviation, weaving.The tensile fatigue of material
Behavior directly influences steel wire rope in industry in straddle truck, safe design, life appraisal of belt etc. in transmission system.Simultaneously
In textile industry, the tensile elasticity fatigue of silk thread is also focal point, such as material can bear great pulling force and indeformable,
Ensure that textile appearance is not damaged.
Just because of these reasons so that filamentary material tensile fatigue turns into the focus of scientific research.Conventional filamentary material stretching
Test fixture is divided into two types：Sample directly is clamped by two jaws, or sample is wound by two directive wheels up and down.Make
The method clamped with jaw is not easy to ensure that the direction of specimen length direction and tensile force is consistent；And directive wheel winding sample
Method easily slided in the case where tensile force is big.Thus it is difficult to ensure that the accuracy of test data and result, and
And add the difficulty of experimenter's operating operation test.
Accordingly, it would be desirable to which on the basis of existing testing equipment, a kind of new clamping is developed for filamentary material sample
The fixture of filamentary material, so as to improve the accuracy of filamentary material test data, reduction experimenter carries out filamentary material stretching
Operation difficulty during experiment, further promotes the research to filamentary material fatigue behaviour in the fields such as machinery, building, weaving.
The content of the invention
The present invention is to solve the not good technical problem of conventional filamentary material tensile test fixture clamping effect, and provide
A kind of fixture for filamentary material tension test, ensures that thread sample does not occur by the wheel rim of directive wheel crooked, bypasses and lead
Clamped to the thread sample rear end of wheel by the frictional force between movable clip block and block, so as to clamp filamentary material sample.
In order to solve the above-mentioned technical problem, the present invention is achieved by following technical scheme：
A kind of fixture for filamentary material tension test, including upper clamp and lower clamp, the upper clamp and
The lower clamp structure is identical and Central Symmetry, directive wheel, gear by jig main body and on the jig main body
Block, movable clip block, guide rail rod and ejector pin composition；
The jig main body includes mainboard and side plate, and the side plate is vertically installed in mainboard outer end side；
The directive wheel is fixed on the mainboard of the jig main body, and with its side plate homonymy；Upper clamp and lower clamp
Two directive wheels there is the public tangent plane of vertical direction and the public tangent plane both sides are divided into；
The block is fixed on the mainboard of the jig main body, and two blocks are located between two directive wheels simultaneously
It is in contact respectively with two directive wheels；The movable clip block is arranged on the outside of the block, the block and the movable clip block
Opposite face be clamping face, the clamping face and the directive wheel be tangent, while parallel with the public tangent plane of two directive wheels；Institute
State the bearing that is provided centrally with the outside of movable clip block, outside is provided at both ends with screwed hole；
The guide rail rod is set perpendicular to the clamping face, and its inner is threadedly connected to the bolt hole of the movable clip block,
Outer end passes through the through hole on the side plate of the jig main body；
The ejector pin is set perpendicular to the clamping face, and its inner is installed in the bearing of the movable clip block；The top
Pin is provided with screw thread and through the screwed hole on the side plate of the jig main body, and the ejector pin outer end is provided with handle；
Thread sample is stretched between two directive wheels during experiment, and one end is bypassed, separately by the directive wheel of upper clamp
One end is bypassed by the directive wheel of lower clamp, and the thread sample end for bypassing directive wheel is clamped in the movable clip block and the gear
Between block；Thread sample section between two directive wheels and the thread examination being clamped between the movable clip block and the block
Sample section at grade and is parallel to each other.
Preferably, the wheel rim that directive wheel both sides edge is conformed with, for being positioned to thread sample.
Preferably, the clamping face between the movable clip block and the block has anti-slip veins.
Preferably, the movable clip block is identical with the face shaping and size of the block.
The beneficial effects of the invention are as follows：
The fixture for filamentary material tension test of the present invention, has been broken thread sample and has been locked using disk or using pincers
The conventional thinking that mouth is clamped, using the tangency location relation and the wheel rim of directive wheel projection of directive wheel, and will bypass directive wheel
Thread sample end clamped by frictional force between movable block and block, while the thread sample is found position reference,
Ensure that thread sample, only by the drawing force of vertical direction, reduces the tangential force in other directions to axial tension in process of the test
The influence of power, it is to avoid occur the phenomenons such as crooked sideslip, also efficiently solves what filamentary material in experiment was easily broken in holding position
Problem；So as to the accuracy and precision of guarantee test data, testing crew operation difficulty is reduced, testing crew operation effect is improved
Rate.
The fixture for filamentary material tension test of the present invention, can be directed to the thread examination of different materials and different-diameter
Sample is stretched, thread sample convenient disassembly, without using other instruments, only need manually rotated handle can attaching/detaching, because
This this fixture can carry out seriation popularization, and the specimen size provided by user is customized, and the scope of application is widely.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of filamentary material tensile test fixture provided by the present invention；
Fig. 2 is the front schematic view of filamentary material tensile test fixture provided by the present invention；
Fig. 3 is the side schematic view of filamentary material tensile test fixture provided by the present invention；
Fig. 4 is the dimensional structure diagram of jig main body；
Fig. 5 is the front schematic view of jig main body；
Fig. 6 is the side schematic view of jig main body；
Fig. 7 is the dimensional structure diagram of directive wheel；
Fig. 8 is the front schematic view of block；
Fig. 9 is the side schematic view of block；
Figure 10 is the front schematic view of movable clip block；
Figure 11 is the side schematic view of movable clip block；
Figure 12 is the front schematic view of guide rail rod；
Figure 13 is the front schematic view of ejector pin；
Figure 14 is the structural representation of handle.
In above-mentioned figure：1：Jig main body；2：Directive wheel；3：Sample；4：Movable clip block；5：Ejector pin；6：Block；7：Guide rail
Rod；8：Handle.
Embodiment
For present disclosure, feature and effect can be further appreciated that, following examples are hereby enumerated, and coordinate accompanying drawing detailed
It is described as follows：
As shown in Figure 1 to Figure 3, a kind of fixture for filamentary material tension test is present embodiments provided, based on experiment
Machine is used, for carrying out filamentary material tension test, main to include two jig main bodies 1, two directive wheels 2, two activity folders
Block 4, two ejector pins 5, two blocks 6 and four guide rail rods 7, these parts composition structure is identical and mutually forms center pair
Be much of portion's fixture and lower clamp, i.e. upper clamp and lower clamp by a jig main body 1, directive wheel 2, one
Movable clip block 4, an ejector pin 5, a block 6 and two guide rail rods 7 are constituted.
With reference to shown in Fig. 4 to Fig. 6, jig main body 1 is used for fixed and supporting guide wheel 2, movable clip block 4, ejector pin 5, block 6
With guide rail rod 7.Jig main body 1 includes mainboard and side plate, and mainboard and side plate are slab construction, and side plate is located at mainboard outer end side
And it is perpendicular with mainboard, the shape of mainboard and side plate is not limited, is processed into the shape for being easy to operation.Upper clamp and
Two jig main bodies 1 of lower clamp are setting up and down and Central Symmetry, and the mainboard of two jig main bodies 1 is generally aligned in the same plane.
With reference to shown in Fig. 7, directive wheel 2 is bolted on the mainboard of jig main body 1, and with the jig main body 1
Side plate is located at homonymy.Two directive wheels 2 of upper clamp and lower clamp have the public tangent plane of vertical direction, and two directive wheels
2 are divided into the vertical common tangent both sides, and the public tangent plane and two directive wheels 2 of upper clamp and lower clamp are tangent.So,
Can make thread sample between two directive wheels 2 vertically by axial tensile force in drawing process, and one end by
The directive wheel 2 of upper clamp is bypassed, the other end is bypassed by the directive wheel 2 of lower clamp and positioned.The both sides edge of directive wheel 2
The wheel rim being conformed with, wheel rim plays positioning action to thread sample, prevents the phenomenons such as crooked sideslip.During tension test,
Thread sample is leaned against at the same side flange of two directive wheels 2, is positioned by the same side flange of two directive wheels 2 as reference plane thread
Sample, further improves experiment accuracy, while reducing the operation difficulty of testing crew.
With reference to shown in Fig. 8 and Fig. 9, block 6 is bolted on the mainboard of jig main body 1 by two up and down, and block 6 is
Rectangular parallelepiped structure.Two blocks 6 are arranged between two directive wheels 2, and respectively with the directive wheel on the same jig main body in place 1
2 Outboard Sections are in contact, and can be directly held between block 6 and movable clip block 4 after directive wheel 2 so that thread sample is bypassed.
Movable clip block 4 is arranged at the outside of block 6, the opposite face formation clamping face of block 6 and movable clip block 4, the clamping face and the institute of block 6
The outside of directive wheel 2 of contact is tangent, while parallel with the public tangent plane of two directive wheels 2.So, not only thread sample is led at two
To, only by the drawing force of vertical direction, thread sample end is also only stretched on clamping face by vertical direction between wheel 2
Active force, avoids the influence of the tangential force to axial tensile force in other directions as far as possible, so as to ensure that thread sample is loaded
There was only vertical tensile force afterwards, significantly reduce test error.
With reference to shown in Figure 10 and Figure 11, movable clip block 4 is set in parallel in the phase in the outside of block 6, movable clip block 4 and block 6
Opposite is used to clamp the thread sample for bypassing directive wheel 2.The opposite face of movable clip block 4 and block 6 is equipped with anti-skidding twill, purpose
It is to improve clamping friction power, thread sample is not susceptible to slip in drawing process.The outward appearance chi of movable clip block 4 and block 6
It is very little identical, it is easy to clamp tighter and attractive in appearance during sample.The hole of the center of movable clip block 4 is assembling bearing hole, with bearing
Gap coordinates, and the groove equipped with hole back-up ring, prevents bearing from coming off.Movable clip block 4 is provided at both ends with screwed hole, with fixture master
With one heart, screwed hole is used to be fixedly connected with guide rail rod 7 the default through hole in side plate two ends of body 1.
With reference to shown in Figure 12, two outer ends of guide rail rod 7 are optical axis, and the side plate two ends for being each passed through jig main body 1 are preset
Through hole, the side plate of jig main body 1 plays the role of positioning to guide rail rod 7.Two the inners of guide rail rod 7 are provided with screw thread, the screw thread point
Do not screw in the screwed hole at the two ends of movable clip block 4.By being fixedly connected and side plate with jig main body 1 with movable clip block 4
Be slidably connected, two guide rail rods 7 are set perpendicular to clamping face, effectively spacing to the lateral displacement of movable clip block 4 to reach
Purpose.
With reference to shown in Figure 13 and Figure 14, ejector pin 5 is provided with screw thread, is connected with screwed hole in the middle part of the side plate of jig main body 1；Top
The inner bearing with movable clip block 4 of pin 5 is interference fitted, it is ensured that bearing and ejector pin 5 are fastened.Pass through the fixation with movable clip block 4
Connect and be threadedly coupled with the side plate of jig main body 1, ejector pin 5 sets perpendicular to clamping face and the formation of movable clip block 4 can be pushed away
Power.Handle 8 is threaded onto the outer end of ejector pin 5, when rotating handle 8, because the side plate of ejector pin 5 and jig main body 1 is connected by screw thread
Connect, handle 8 drives ejector pin 5 to rotate and ejector pin 5 is promoted movable clip block 4 and is subjected to displacement to the direction of block 6, so as to clamp thread
Sample.
During experiment, thread sample is stretched between two directive wheels 2, and one end bypasses by the directive wheel 2 of upper clamp, another
End is bypassed by the directive wheel 2 of lower clamp, bypass directive wheel 2 thread sample end be clamped in movable clip block 4 and block 6 it
Between.Thread sample section and two thread sample areas being clamped between movable clip block 4 and block 6 between two directive wheels 2
Section at grade and is parallel to each other.
The fixture for filamentary material tension test of the present invention, application method is as follows：
1) this fixture is installed on testing equipment；
2) by upper clamp and lower clamp centering；
3) two movable clip blocks 4 are unclamped respectively by handle, reserves the gap for placing thread sample；
4) thread sample bypasses to two directive wheels 2 respectively between upper clamp and lower clamp, and by thread sample
End is positioned between movable clip block 4 and block 6；
5) thread sample is tensed, thread sample is abutted against in a side flange of directive wheel 2；
6) movable clip block 4 is promoted to clamp thread sample using handle；
7) experiment is started.
Although the preferred embodiments of the present invention are described above in conjunction with accompanying drawing, the invention is not limited in upper
The embodiment stated, above-mentioned embodiment is only schematical, be not it is restricted, this area it is common
Technical staff is under the enlightenment of the present invention, in the case of invention objective and scope of the claimed protection is not departed from, can be with
The specific conversion of many forms is made, these are belonged within protection scope of the present invention.
Claims (4)
1. a kind of fixture for filamentary material tension test, including upper clamp and lower clamp, it is characterised in that on described
Portion's fixture is identical with the lower clamp structure and Central Symmetry, leading by jig main body and on the jig main body
Constituted to wheel, block, movable clip block, guide rail rod and ejector pin；
The jig main body includes mainboard and side plate, and the side plate is vertically installed in mainboard outer end side；
The directive wheel is fixed on the mainboard of the jig main body, and with its side plate homonymy；The two of upper clamp and lower clamp
The individual directive wheel has the public tangent plane of vertical direction and is divided into the public tangent plane both sides；
The block is fixed on the mainboard of the jig main body, and two blocks are located between two directive wheels and difference
It is in contact with two directive wheels；The movable clip block is arranged on the outside of the block, the phase of the block and the movable clip block
Opposite is clamping face, and the clamping face and the directive wheel are tangent, while parallel with the public tangent plane of two directive wheels；The work
On the outside of dynamic fixture block it is provided centrally with bearing, outside is provided at both ends with screwed hole；
The guide rail rod is set perpendicular to the clamping face, and its inner is threadedly connected to the bolt hole of the movable clip block, outer end
Through hole through on the side plate of the jig main body；
The ejector pin is set perpendicular to the clamping face, and its inner is installed in the bearing of the movable clip block；The ejector pin is set
There is screw thread and through the screwed hole on the side plate of the jig main body, the ejector pin outer end is provided with handle；
Thread sample is stretched between two directive wheels during experiment, and one end is bypassed by the directive wheel of upper clamp, the other end
Bypassed by the directive wheel of lower clamp, bypass directive wheel thread sample end be clamped in the movable clip block and the block it
Between；Thread sample section between two directive wheels and the thread sample area being clamped between the movable clip block and the block
Section at grade and is parallel to each other.
2. a kind of fixture for filamentary material tension test according to claim 1, it is characterised in that the directive wheel
The wheel rim that both sides edge is conformed with, for being positioned to thread sample.
3. a kind of fixture for filamentary material tension test according to claim 1, it is characterised in that the activity folder
Clamping face between block and the block has anti-slip veins.
4. a kind of fixture for filamentary material tension test according to claim 1, it is characterised in that the activity folder
Block is identical with the face shaping and size of the block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710503301.XA CN107167372A (en) | 2017-06-27 | 2017-06-27 | A kind of fixture for filamentary material tension test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710503301.XA CN107167372A (en) | 2017-06-27 | 2017-06-27 | A kind of fixture for filamentary material tension test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107167372A true CN107167372A (en) | 2017-09-15 |
Family
ID=59827966
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710503301.XA Pending CN107167372A (en) | 2017-06-27 | 2017-06-27 | A kind of fixture for filamentary material tension test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107167372A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627398A (en) * | 2018-06-13 | 2018-10-09 | 何磊 | A kind of wirerope-winding stretching device |
| CN109781516A (en) * | 2018-12-28 | 2019-05-21 | 东北大学 | A kind of material strain original position EBSD observation test fixture and the test method |
| CN116735347A (en) * | 2023-05-08 | 2023-09-12 | 江苏圣欣不锈钢制品有限公司 | Steel wire rope tension testing device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11132924A (en) * | 1997-10-30 | 1999-05-21 | Wakayama Prefecture | Material testing machine |
| JP2000019086A (en) * | 1998-06-30 | 2000-01-21 | Shimadzu Corp | Material-testing machine |
| CN102830013A (en) * | 2012-08-21 | 2012-12-19 | 无锡通用钢绳有限公司 | Clamping device of steel wire rope tension tester |
| CN206862764U (en) * | 2017-06-27 | 2018-01-09 | 天津大学 | A kind of fixture for filamentary material tension test |
-
2017
- 2017-06-27 CN CN201710503301.XA patent/CN107167372A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11132924A (en) * | 1997-10-30 | 1999-05-21 | Wakayama Prefecture | Material testing machine |
| JP2000019086A (en) * | 1998-06-30 | 2000-01-21 | Shimadzu Corp | Material-testing machine |
| CN102830013A (en) * | 2012-08-21 | 2012-12-19 | 无锡通用钢绳有限公司 | Clamping device of steel wire rope tension tester |
| CN206862764U (en) * | 2017-06-27 | 2018-01-09 | 天津大学 | A kind of fixture for filamentary material tension test |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108627398A (en) * | 2018-06-13 | 2018-10-09 | 何磊 | A kind of wirerope-winding stretching device |
| CN109781516A (en) * | 2018-12-28 | 2019-05-21 | 东北大学 | A kind of material strain original position EBSD observation test fixture and the test method |
| CN109781516B (en) * | 2018-12-28 | 2024-02-02 | 东北大学 | Clamp for material strain in-situ EBSD observation test and test method |
| CN116735347A (en) * | 2023-05-08 | 2023-09-12 | 江苏圣欣不锈钢制品有限公司 | Steel wire rope tension testing device |
| CN116735347B (en) * | 2023-05-08 | 2024-02-09 | 江苏圣欣不锈钢制品有限公司 | Steel wire rope tension testing device |
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