CN107084874A - Fabric tension force shears composite performance test fixture - Google Patents
Fabric tension force shears composite performance test fixture Download PDFInfo
- Publication number
- CN107084874A CN107084874A CN201710238508.9A CN201710238508A CN107084874A CN 107084874 A CN107084874 A CN 107084874A CN 201710238508 A CN201710238508 A CN 201710238508A CN 107084874 A CN107084874 A CN 107084874A
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- Prior art keywords
- gripper
- gripper edge
- plate
- edge
- tension force
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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
- 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/02—Details not specific for a particular testing method
- G01N2203/04—Chucks, fixtures, jaws, holders or anvils
- G01N2203/0411—Chucks, fixtures, jaws, holders or anvils using pneumatic or hydraulic pressure
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
Composite performance test fixture is sheared the invention discloses a kind of fabric tension force, it includes gripper frame and is arranged at the connector of a pair of apexes of gripper frame, the gripper frame includes the gripper edge being hinged successively and is arranged in the syringe needle on each gripper edge along length of side direction；Fixation is completed through fabric with syringe needle while braid is clamped by gripper edge before test, then pulls connector to start test.While first braid is clamped by gripper edge before carrying out braid shearing performance test fixation is completed with syringe needle through fabric, with an adjustable just component tensioning fabric, connector is pulled to start test again, the tension direction of braid makes tension direction identical with the axial direction of braid always due to the effect of syringe needle in test process, improve the accuracy of test result, fabric is in shaping, its tension state is change, the present invention can carry out the tensioning of differential tension value by an adjustable just component, so that when measuring differential tension, the cutting performance of fabric.
Description
Technical field
The present invention relates to a kind of test fixture, more particularly to a kind of fabric tension force-shearing composite performance test fixture.
Background technology
With the progress and expanding economy of society, composite is more and more extensive in the application of every field, in order to grind
Study carefully the application of braid material, it is necessary to understand the performance of material, for braid, cutting performance is molded braided material
During one of critically important parameter.And the main shearing by measuring metallic materials, nonmetallic materials of existing test fixture is real
Test the fixture of performance, compression experiment performance and stretching experiment performance.Because the standard specimen of metal material is thicker, easy clamping,
Be difficult skid, and braid thickness of composite material it is thin and it is easy skid, therefore, existing fixture be not suitable for test braid composite wood
Material.
In order to carry out test Shanghai Communications University to the cutting performance of braid application number is proposed on May 10th, 2012
For 201220211156.0 patent《Test fixture for testing braid material cutting performance》, the technical scheme solves
Braid is difficult to clamp the defect easily skidded, but the problem of still have certain.Firstth, the tension direction of braid can not
Control, second, can not ensure that before on-test braid is in tensioning state；So as to be difficult to ensure that test result is accurately reliable.
The content of the invention
It is an object of the invention to provide a kind of fabric tension force-shearing plyability for making braid tension direction controllable
Can test fixture.
This fabric tension force-shearing composite performance test fixture that the present invention is provided, it includes gripper frame and setting
In the connector of a pair of apexes of gripper frame, the gripper frame includes the gripper edge being hinged successively and is arranged in respectively along length of side direction
Syringe needle on gripper edge, gripper edge is externally provided with an adjustable just component；Used while braid is clamped by gripper edge before test
Syringe needle completes to fix through fabric, and by pulling connector to start test after an adjustable just component tensioning.
The gripper frame is quadrangle framework, and it includes the first gripper edge, the second gripper edge, the 3rd clamping being hinged successively
Jointed shaft is equipped with side and the 4th gripper edge, each articulated position.
Stating the first gripper edge includes U-shaped seat and the clamping closed the reinforcing plate of U-shaped seat openend and be connected in U-shaped seat
Component, one end of U-shaped seat is that the larger bayonet socket end of thickness, the other end are the less dop end of thickness, and bayonet socket end is big provided with thickness
In the groove that penetrates of dop end thickness, clamp assemblies include supporting plate and bolt connection in the pressing plate on supporting plate, and clamp assemblies are with supporting plate
The cecum of U-shaped seat is connected to, the base of U-shaped seat is provided with the syringe needle that a row arranges perpendicular to pressing plate plate face.
Second gripper edge includes D types seat and is connected on its vertical edge, the clamp assembly in D types seat, D types seat
The middle parts of arc-shaped edges be opening, be provided with closed plate at opening, one, two summit of D types seat be plate plug end, another
To offer the socket end for penetrating groove, the thickness for penetrating groove is more than the thickness at plug end and the dop end, clamp assembly
Including bottom plate and bolt connection in the cover plate on bottom plate, clamp assembly is connected with bottom plate with D types seat, is set on the vertical edge of D types seat
There is the syringe needle that a row arranges perpendicular to cover plate plate face.
The structure of 3rd gripper edge is identical with the structure of the second gripper edge, the structure of the 4th gripper edge and the first clamping
The structure on side is identical.
First gripper edge is hinged with its dop end and the socket end of the second gripper edge, and the second gripper edge is with its plug end
It is hinged with the socket end of the 3rd gripper edge, the 3rd gripper edge is hinged with its plug end and the bayonet socket end of the 4th gripper edge, the 4th folder
Hold side to be hinged with its dop end and the bayonet socket end of the first gripper edge, the jointed shaft is equipped with articulated position.
The jointed shaft is T-shaped axle, and the outer end of its bar portion is the end of thread, each gripper edge be articulated with jointed shaft after by with
The nut check of set.
In order to avoid frictional force occur between adjacent gripper edge in rotation process while ensureing and rotate flexibility ratio, described
Bearing is equipped between jointed shaft and each gripper edge, the bar portion of each jointed shaft is equipped with the shaft shoulder, it is ensured that on same jointed shaft
There is spacing between adjacent two gripper edge.
For the ease of controlling fabric to be in tensioning state before the stretching, it is cylinder to make an adjustable just component, adjustable first
Open component to be arranged between the bottom plate and the closed plate, the plate outer side is provided through the linear bearing of bottom plate, cylinder
Clamp assembly can be driven along linear bearing back and forth movement.
For the ease of carry out thin tail sheep tension test, in order to which measurement by magnification power is to reduce error, state connector with it is described
Stroke amplifying mechanism is provided between gripper frame, stroke amplifying mechanism is the quadric chain that quadrangularly is set, stroke amplification
Mechanism is connected with connector with one summit, is connected with the another summit of its diagonal angle with the jointed shaft of gripper frame.
Present invention syringe needle while first braid is clamped by gripper edge before carrying out braid shearing performance test
Complete to fix through fabric, braid is in tensioning state by an adjustable just component effect after fabric is fixed, then draw
Dynamic connector can start test, in test process the tension direction of braid due to the effect of syringe needle make tension direction always with
The axial direction of braid is identical, improves the accuracy of test result, improves the reliability of test result；While fabric is in shaping,
Its tension state is change, and the present invention can carry out the tensioning of differential tension value by an adjustable just component, so as to measure
The cutting performance of fabric during differential tension.
Brief description of the drawings
Fig. 1 is the schematic top plan view of a preferred embodiment of the invention.
Fig. 2 is axle side schematic cross-sectional view at the 3rd jointed shaft in Fig. 1.
Fig. 3 is axle side schematic cross-sectional view at the 4th jointed shaft in Fig. 1.
Illustrate sequence number：
1-gripper frame, 2-connector, 3-syringe needle, 4-stroke amplifying mechanism 4,5-linear bearing, the 6-the first jointed shaft,
7-the second jointed shaft, the 8-the three jointed shaft, the 9-the four jointed shaft, 10-tensioning cylinder, the 11-the first gripper edge, 12-the
Two gripper edges, the 13-the three gripper edge, the 14-the four gripper edge, 111-U-shaped seat, 112-reinforcing plate, 113-clamp assemblies,
121-D types seat, 122-clamp assembly, 123-closed plate, 1131-supporting plate, 1132-pressing plate, 1221-bottom plate, 1222-
Cover plate.
Embodiment
As shown in Fig. 1-3, this fabric tension force-shearing composite performance test fixture that the present embodiment is provided, it is wrapped
Include gripper frame 1, connector 2, syringe needle 3 and stroke amplifying mechanism 4.Gripper frame 1 is quadrangle framework, and it includes the be hinged successively
One gripper edge 11, the second gripper edge 12, the 3rd gripper edge 13 and the 4th gripper edge 14, wherein the 3rd gripper edge and the second gripper edge
Structure is identical, and the 4th gripper edge is identical with the first gripper edge structure.Row's syringe needle is disposed with along length of side direction in each hinge side,
Braid is fixed by syringe needle before testing, makes braid tension force suffered by during extension test along perpendicular to the direction of syringe needle
I.e. tension direction is the axial direction of braid.One in two connectors is arranged at being hinged for the 4th gripper edge and the first gripper edge
Position, another is arranged at the articulated position of the second gripper edge and the 3rd gripper edge, consolidates one of connector in test
It is fixed, then another connector and stretching-machine are connected as a single entity.Stroke amplifying mechanism 4 is to be arranged at connector and gripper frame
Between the quadric chain that sets of quadrangularly, stroke amplifying mechanism is connected with one summit with the connector at stretching-machine,
Be connected with the another summit of its diagonal angle with the jointed shaft of gripper frame, in process of the test can measurement by magnification power to reduce mistake
Difference, improves accuracy of measurement and computational accuracy, also allows for carrying out thin tail sheep tension test.
First gripper edge 11 includes U-shaped seat 111 and the reinforcing plate 112 for closing U-shaped seat openend and is connected in U-shaped seat
Clamp assemblies 113, one end of U-shaped seat is that the larger bayonet socket end of thickness, the other end are the less dop end of thickness, and bayonet socket end is set
There is thickness to be more than the groove that penetrates of dop end thickness, clamp assemblies 113 include supporting plate 1131 and bolt connection in the pressing plate on supporting plate
1132。
Second gripper edge 12 includes D types seat 121 and is connected on its vertical edge, the clamp assembly 122, D in D types seat
The middle part of the arc-shaped edges of type seat is opening, is provided with closed plate 123 at opening, one, two summit of D types seat be plate plug end,
Another is to offer the socket end for penetrating groove, and the thickness for penetrating groove is more than the thickness at plug end and the dop end, folder
Tight component 122 includes bottom plate 1221 and bolt connection in the cover plate 1222 on bottom plate, and clamp assembly is connected with bottom plate with D types seat,
The tensioning cylinder 10 vertical with D types seat vertical edge is provided between bottom plate and closed plate, the plate outer side of D types seat is provided through bottom
The linear bearing 5 of plate, tensioning cylinder can drive clamp assembly along linear bearing back and forth movement, in order to ensure braid in drawing
Tensioning state is in before stretching, and can be by coordinating digital display meter to make the tensile force under the state precisely controllable.
In assembling process, by the dop end of the first gripper edge with stretching into the socket end of the second gripper edge, and cover simultaneously
In on the first jointed shaft 6；The plug end of second gripper edge is stretched into the socket end of the 3rd gripper edge and the second jointed shaft 7 is placed on
On；The plug end of 3rd gripper edge is stretched into the bayonet socket end of the 4th gripper edge and while is placed on the 3rd jointed shaft 8；By the 4th
The dop end of gripper edge is stretched into the bayonet socket end of the first gripper edge and while be inserted on the 4th jointed shaft 9, then by keeping off accordingly
Plate and nut check.Each jointed shaft is T-shaped axle, and the outer end of its bar portion is the end of thread, each jointed shaft bar portion with it is each
Be equipped between hinge side deep groove ball bearing or thrust bearing ensure stress while also ensure rotate flexibility ratio, and
The bar portion of each jointed shaft is equipped with the shaft shoulder, ensures there is spacing between adjacent two gripper edge on same jointed shaft by the shaft shoulder,
So as to avoid occurring frictional force in rotation process between adjacent gripper edge, the precision of test is improved.
Braid is first paved and is arranged on each gripper edge by the present embodiment before braid shearing performance test is carried out, then is led to
The supporting plate and platen clamp of the first, the 4th gripper edge are crossed, is clamped by the bottom plate and cover plate of second, third gripper edge, and make pin
Head pass through braid, improve fixed effect, then control two cylinder actions, make fabric be in tensioning apparatus, then by two connection
A fixation in head, another is connected with stretching-machine, and test can be started by starting stretching-machine.Syringe needle, which rises, in test process is oriented to
Effect, makes the tension direction of braid because the effect of syringe needle makes tension direction identical with the axial direction of braid always, improves and surveys
The accuracy of test result, improves the reliability of test result.Meanwhile, fabric is in shaping, and its tension state is change, this
Implement that the tensioning of differential tension value can be carried out by both sides cylinder, so as to measure the cutting performance of fabric during differential tension, also
Whole tensile force can be accurately controlled by configuring digital display meter, the accuracy of test result is improved.
As formation enlarger an alternative it would also be possible to by the first gripper edge and the 4th gripper edge in the 4th jointed shaft
Place stretches out, then the outer end that would extend out is hinged each via a connecting rod and connector.
Claims (10)
1. a kind of fabric tension force-shearing composite performance test fixture, it includes gripper frame and is arranged at gripper frame pushing up for a pair
Connector at point, it is characterised in that：The gripper frame includes the gripper edge being hinged successively and is arranged in each folder along length of side direction
The syringe needle on side is held, gripper edge is externally provided with an adjustable just component；Pin while braid is clamped by gripper edge before test
Head completes to fix through fabric, and by pulling connector to start test after an adjustable just component tensioning.
2. fabric tension force according to claim 1-shearing composite performance test fixture, it is characterised in that：The folder
Frame is held for quadrangle framework, it includes the first gripper edge, the second gripper edge, the 3rd gripper edge and the 4th clamping being hinged successively
Jointed shaft is equipped with side, each articulated position.
3. fabric tension force according to claim 2-shearing composite performance test fixture, it is characterised in that：Described
One gripper edge includes U-shaped seat and the reinforcing plate for closing U-shaped seat openend and the clamp assemblies being connected in U-shaped seat, U-shaped seat
One end is that the larger bayonet socket end of thickness, the other end are the less dop end of thickness, and bayonet socket end is more than dop end thickness provided with thickness
Penetrate groove, clamp assemblies include supporting plate and bolt connection in the pressing plate on supporting plate, and clamp assemblies are connected to U-shaped seat with supporting plate
Cecum, the base of U-shaped seat is provided with the syringe needle that a row arranges perpendicular to pressing plate plate face.
4. fabric tension force according to claim 3-shearing composite performance test fixture, it is characterised in that：Described
Two gripper edges include D types seat and are connected on its vertical edge, the clamp assembly in D types seat, the middle part of the arc-shaped edges of D types seat
For opening, be provided with closed plate at opening, one, two summit of D types seat be plate plug end, another for offer penetrate it is recessed
The socket end of groove, the thickness for penetrating groove is more than the thickness at plug end and the dop end, and clamp assembly includes bottom plate and bolt
The cover plate on bottom plate is connected to, clamp assembly is connected with bottom plate with D types seat, the vertical edge of D types seat is provided with a row perpendicular to lid
The syringe needle of plate plate face arrangement.
5. fabric tension force according to claim 4-shearing composite performance test fixture, it is characterised in that：Described
The structure of three gripper edges is identical with the structure of the second gripper edge, and the structure of the 4th gripper edge is identical with the structure of the first gripper edge.
6. fabric tension force according to claim 5-shearing composite performance test fixture, it is characterised in that：Described
One gripper edge is hinged with its dop end and the socket end of the second gripper edge, and the second gripper edge is with its plug end and the 3rd gripper edge
Socket end is hinged, and the 3rd gripper edge is hinged with its plug end and the bayonet socket end of the 4th gripper edge, and the 4th gripper edge is with its dop end
It is hinged with the bayonet socket end of the first gripper edge, the jointed shaft is equipped with articulated position.
7. fabric tension force according to claim 6-shearing composite performance test fixture, it is characterised in that：The hinge
Spindle is T-shaped axle, and the outer end of its bar portion is the end of thread, each gripper edge be articulated with jointed shaft after by supporting nut check.
8. fabric tension force according to claim 7-shearing composite performance test fixture, it is characterised in that：The hinge
Bearing is equipped between spindle and each gripper edge, the bar portion of each jointed shaft is equipped with the shaft shoulder, it is ensured that the phase on same jointed shaft
There is spacing between adjacent two gripper edges.
9. fabric tension force according to claim 4-shearing composite performance test fixture, it is characterised in that：It is described can
Adjust and just open component for cylinder, an adjustable just component is arranged between the bottom plate and the closed plate, and the plate outer side is provided with
Through the linear bearing of bottom plate, cylinder can drive clamp assembly along linear bearing back and forth movement.
10. fabric tension force according to claim 2-shearing composite performance test fixture, it is characterised in that：The company
Stroke amplifying mechanism is provided between joint and the gripper frame, stroke amplifying mechanism is the double leval jib machine that quadrangularly is set
Structure, stroke amplifying mechanism is connected with one summit with connector, with the jointed shaft phase of the another summit of its diagonal angle and gripper frame
Even.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710238508.9A CN107084874B (en) | 2017-04-13 | 2017-04-13 | Fabric tension-shearing composite performance test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710238508.9A CN107084874B (en) | 2017-04-13 | 2017-04-13 | Fabric tension-shearing composite performance test fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107084874A true CN107084874A (en) | 2017-08-22 |
| CN107084874B CN107084874B (en) | 2019-09-17 |
Family
ID=59611268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710238508.9A Active CN107084874B (en) | 2017-04-13 | 2017-04-13 | Fabric tension-shearing composite performance test fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107084874B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318353A (en) * | 2018-03-31 | 2018-07-24 | 大连理工大学 | The photo frame test device and its test method of flexible fabric inplane shear deformation evaluating |
| CN109187174A (en) * | 2018-09-06 | 2019-01-11 | 华中科技大学 | A kind of fixture for testing cutting performance suitable for fibre reinforcement and its prepreg |
| CN110243701A (en) * | 2019-07-05 | 2019-09-17 | 山东科技大学 | A kind of Bolted Rock Masses torsional shear test device and method |
| CN111551431A (en) * | 2020-06-01 | 2020-08-18 | 天津工业大学 | Test fixture for testing interlaminar shearing performance of fabric |
| CN114184497A (en) * | 2020-09-14 | 2022-03-15 | 广州汽车集团股份有限公司 | Method and device for testing fabric shearing performance parameters |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108318353A (en) * | 2018-03-31 | 2018-07-24 | 大连理工大学 | The photo frame test device and its test method of flexible fabric inplane shear deformation evaluating |
| CN109187174A (en) * | 2018-09-06 | 2019-01-11 | 华中科技大学 | A kind of fixture for testing cutting performance suitable for fibre reinforcement and its prepreg |
| CN110243701A (en) * | 2019-07-05 | 2019-09-17 | 山东科技大学 | A kind of Bolted Rock Masses torsional shear test device and method |
| CN111551431A (en) * | 2020-06-01 | 2020-08-18 | 天津工业大学 | Test fixture for testing interlaminar shearing performance of fabric |
| CN114184497A (en) * | 2020-09-14 | 2022-03-15 | 广州汽车集团股份有限公司 | Method and device for testing fabric shearing performance parameters |
| CN114184497B (en) * | 2020-09-14 | 2023-12-22 | 广州汽车集团股份有限公司 | Method and device for testing shear performance parameters of fabric |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107084874B (en) | 2019-09-17 |
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