CN207051110U - A kind of test fixture for composite wood charge level out-draw - Google Patents
A kind of test fixture for composite wood charge level out-draw Download PDFInfo
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- CN207051110U CN207051110U CN201720969361.6U CN201720969361U CN207051110U CN 207051110 U CN207051110 U CN 207051110U CN 201720969361 U CN201720969361 U CN 201720969361U CN 207051110 U CN207051110 U CN 207051110U
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- multiple material
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- charge level
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Abstract
A kind of test fixture for composite wood charge level out-draw is the utility model is related to, it includes supporting backing plate, and the support backing plate one side is connected to stretching device, supports backing plate another side to be placed with multiple material testpieces；Voussoir is clamped, the clamping voussoir is held on multiple material testpieces, and by connector with supporting backing plate to fix；Stretching assembly, stretching assembly one end are fixed with stretching device, and the stretching assembly other end is fixed on multiple material testpieces；Wherein, the draw direction of stretching device is conllinear with the center of multiple material testpieces, and the face out-draw load test of multiple material testpieces is realized by stretching device.Test fixture of the present utility model for composite wood charge level out-draw can the actual status of support of model configuration aboard, structure is played a supporting role and effectively model configuration truly support rigidity.
Description
Technical field
The utility model belongs to test tool design field, more particularly to a kind of for composite wood charge level out-draw
Test fixture.
Background technology
Composite extensive use in aircaft configuration, composite stress is increasingly sophisticated, and its stress is being not simple
Pure shear form, but tension and compression form outside face be present, composite material base dignity is outer weaker by loading capability, and this sets as composite
Problem is counted, needs corresponding verification experimental verification badly.
Because the particular/special requirement of composite proposes high requirement, the test fixture of composite to the design of its test fixture
The requirement of testpieces static determinacy should be met, real simulation structure truly supports rigidity again, also to have higher reliability.
Utility model content
The purpose of this utility model is to provide a kind of test fixture for composite wood charge level out-draw, above-mentioned for solving
Problem.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：It is a kind of for composite wood charge level out-draw
Test fixture, it includes
Backing plate is supported, the support backing plate one side is connected to stretching device, supports backing plate another side to be placed with multiple material examination
Test part；
Voussoir is clamped, the clamping voussoir is held on multiple material testpieces, and by connector with supporting backing plate to fix；
Stretching assembly, stretching assembly one end are fixed with stretching device, and the stretching assembly other end is fixed on multiple material testpieces；
Wherein, the draw direction of stretching device is conllinear with the center of multiple material testpieces, realizes that multiple material tries by stretching device
Test the face out-draw load test of part.
The preferred embodiment of the utility model one, the one side for supporting that backing plate is placed with multiple material testpieces is convex surface.
The preferred embodiment of the utility model one, the side of the multiple material testpieces of clamping voussoir clamping is stairstepping.
The preferred embodiment of the utility model one, the clamping voussoir are multiple and along the central axial of multiple material testpieces
Uniformly arrangement.
The preferred embodiment of the utility model one, the multiple material testpieces is circle, supports voussoir to be held on multiple material examination
Test the diametric(al) of part.
The preferred embodiment of the utility model one, the multiple material testpieces is rectangle, supports voussoir to be held on multiple material examination
Test the diagonal of part.
The preferred embodiment of the utility model one, the stretching assembly further comprise U-shaped connector and stretching connection
Part, stretching connector one end are connected to stretching device, and the stretching connector other end is inserted in U-shaped connector to be connected by connector
Connect, and U-shaped connector bottom is connected to multiple material testpieces by multiple material connector.
The preferred embodiment of the utility model one, the multiple material connector are connected by screw thread with multiple material testpieces.
The preferred embodiment of the utility model one, the multiple material connector do not penetrate multiple material testpieces.
The preferred embodiment of the utility model one, the multiple material connector are connected by welding with multiple material testpieces.
Test fixture of the present utility model for composite wood charge level out-draw being capable of the reality of model configuration aboard
Status of support, plays a supporting role to structure and effectively model configuration truly supports rigidity, and its advantage is mainly reflected in following two
Individual aspect：
1) using clamping voussoir, supporting backing plate that 6 director space frees degree of multiple material test specimen are carried out into finite limitation, knot is met
The requirement of structure static determinacy, this design method are simple and reliable；
2) consider practical structures rigidity, clamping voussoir is designed as forge piece of step type structure form, the actual branch of effective model configuration
Rigidity is held, accurate Characterization composite ess-strain is horizontal.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, show meet it is of the present utility model
Embodiment, and for explaining principle of the present utility model together with specification.
Fig. 1 is the test fixture structure chart for composite wood charge level out-draw of the embodiment of the utility model one.
Fig. 2 is the clamping voussoir schematic diagram of the embodiment of the utility model one.
Reference：
1- supports backing plate, 2- clamping voussoirs, 3- stretching assemblies, the multiple material testpieces of 4-, 31-U type connectors, 32- stretchings company
Fitting, the multiple material connectors of 33-.
Embodiment
To make the purpose, technical scheme and advantage that the utility model is implemented clearer, below in conjunction with the utility model
Accompanying drawing in embodiment, the technical scheme in the embodiment of the utility model is further described in more detail.
It is the test fixture structure chart of the present utility model for composite wood charge level out-draw as shown in Figure 1, this practicality is new
The test fixture for composite wood charge level out-draw of type, which specifically includes, supports backing plate 1, clamping voussoir 2 and stretching assembly 3.Support
The one side of backing plate 1 is connected to stretching device (being not drawn into stretching device figure), supports the another side of backing plate 1 to be placed with multiple material testpieces
4；Clamping voussoir 2 is held on multiple material testpieces 4, and by connector with supporting backing plate 1 to fix；The one end of stretching assembly 3 and stretching
Device is fixed, and the other end of stretching assembly 3 is fixed on multiple material testpieces 4；Wherein, the draw direction of stretching device and multiple material testpieces
4 center is conllinear, and the face out-draw load test of multiple material testpieces 4 is realized by stretching device.
The center of above-mentioned multiple material testpieces 4 can be geometric centroid or barycenter of multiple material testpieces etc..
In an embodiment of the present utility model, support that the one side that backing plate 1 is placed with multiple material testpieces 4 is convex surface, referring to
Shown in Fig. 1, it is supported between convex surface and the body construction for supporting backing plate 1 by the support rib of integral type.
As shown in Fig. 2 it is stairstepping in the one side for clamping voussoir 2 with multiple material testpieces 4 contacts, stair-stepping contact surface is not
Multiple material testpieces 4 can only be fixed in tensile force F directions, multiple material testpieces 4 can also be fixed in the horizontal direction, from
And ensure that multiple frees degree of multiple material testpieces 4 are limited.
In the utility model, clamping voussoir 2 is central axial uniformly arrangement multiple and along multiple material testpieces 4.When multiple
When material testpieces 4 is circular configuration, voussoir 2 is supported to be held on the diametric(al) of multiple material testpieces 4, you can with using four supports
Voussoir 2, the line of two overlap with diameter, and two other line is vertical with aforementioned diameter and is also the straight of multiple material testpieces 4
Footpath direction, it is circumferential uniform along the center of circle certainly if other quantity.When multiple material testpieces 4 is rectangular configuration, voussoir is supported
2 are held on the diagonal of multiple material testpieces 4, i.e., can also use four support voussoirs 2, and each two supports the company of voussoir 2
Line is its diagonal.
In the utility model, stretching assembly 3 further comprises U-shaped connector 31 and stretching connector 32, stretching connection
One end of part 32 is connected to stretching device, and stretching connector 32 other end is inserted in U-shaped connector 31 and is bolted, U
The bottom of type connector 31 is connected to multiple material testpieces 4 by multiple material connector 33.
In embodiment of the present utility model, multiple material connector 33 can be countersunk head, and it is tested by screw thread and multiple material
Part 4 is connected, and multiple material connector 33 can also be connected by welding with multiple material testpieces 4.When multiple material connector 33 by screw thread with
When multiple material testpieces 4 connects, multiple material connector 33 does not penetrate multiple material testpieces 4, multiple on the premise of both bonding strengths are ensured
It is more few better that material connector 33 stretches into multiple material testpieces 4, could so simulate stress outside the face of multiple material testpieces 4 to greatest extent,
Referring to Fig. 1.
Test fixture of the present utility model for composite wood charge level out-draw can simulate multiple material structure aboard
Actual status of support, structure is played a supporting role and effectively model configuration truly support rigidity, its advantage be mainly reflected in
Lower two aspects：
1) using clamping voussoir 2, support backing plate 1 that the six direction spatial degrees of freedom of multiple material testpieces 4 is carried out into limited limit
System, meets Structural Static provisioning request, this design method is simple and reliable；
2) consider practical structures rigidity, clamping voussoir 2 is designed as forge piece of step type structure form, the actual branch of effective model configuration
Rigidity is held, accurate Characterization composite ess-strain is horizontal.
The test fixture that the utility model is used for composite wood charge level out-draw solves the outer stand under load of composite wood charge level well
Test specimen static determinacy support issue, real simulation support rigidity, and Efficient Characterization structural stress has larger actual application value, existed
Practiced in the outer stand under load experiment of the multiple face of certain type civil aircraft.
It is described above, optimal embodiment only of the present utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should be with
The scope of the claims is defined.
Claims (10)
1. a kind of test fixture for composite wood charge level out-draw, it is characterised in that described to be used for composite wood charge level out-draw
Test fixture include
Backing plate (1) is supported, described support backing plate (1) one side is connected to stretching device, it is multiple to support that backing plate (1) another side is placed with
Material testpieces (4)；
Voussoir (2) is clamped, the clamping voussoir (2) is held on multiple material testpieces (4), and by connector with supporting backing plate (1)
It is fixed；
Stretching assembly (3), stretching assembly (3) one end are fixed with stretching device, and stretching assembly (3) other end is fixed on multiple material experiment
Part (4)；
Wherein, the draw direction of stretching device is conllinear with the center of multiple material testpieces (4), realizes that multiple material is tested by stretching device
The face out-draw load test of part (4).
2. the test fixture according to claim 1 for composite wood charge level out-draw, it is characterised in that the support pad
The one side that plate (1) is placed with multiple material testpieces (4) is convex surface.
3. the test fixture according to claim 2 for composite wood charge level out-draw, it is characterised in that the clamping wedge
The side of the multiple material testpieces (4) of block (2) clamping is stairstepping.
4. the test fixture according to claim 1 for composite wood charge level out-draw, it is characterised in that the clamping wedge
Block (2) is central axial uniformly arrangement multiple and along multiple material testpieces (4).
5. the test fixture according to claim 4 for composite wood charge level out-draw, it is characterised in that the multiple material examination
Part (4) is tested as circle, supports voussoir (2) to be held on the diametric(al) of multiple material testpieces (4).
6. the test fixture according to claim 4 for composite wood charge level out-draw, it is characterised in that the multiple material examination
It is rectangle to test part (4), supports voussoir (2) to be held on the diagonal of multiple material testpieces (4).
7. the test fixture according to claim 1 for composite wood charge level out-draw, it is characterised in that the stretching group
Part (3) further comprises U-shaped connector (31) and stretching connector (32), and stretching connector (32) one end is connected to stretching dress
Put, stretching connector (32) other end is inserted in U-shaped connector (31) to be connected by connector, and U-shaped connector (31) bottom
Portion is connected to multiple material testpieces (4) by multiple material connector (33).
8. the test fixture according to claim 7 for composite wood charge level out-draw, it is characterised in that the multiple material connects
Fitting (33) is connected by screw thread with multiple material testpieces (4).
9. the test fixture according to claim 8 for composite wood charge level out-draw, it is characterised in that the multiple material connects
Fitting (33) does not penetrate multiple material testpieces (4).
10. the test fixture according to claim 7 for composite wood charge level out-draw, it is characterised in that the multiple material
Connector (33) is connected by welding with multiple material testpieces (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720969361.6U CN207051110U (en) | 2017-08-04 | 2017-08-04 | A kind of test fixture for composite wood charge level out-draw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720969361.6U CN207051110U (en) | 2017-08-04 | 2017-08-04 | A kind of test fixture for composite wood charge level out-draw |
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| Publication Number | Publication Date |
|---|---|
| CN207051110U true CN207051110U (en) | 2018-02-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720969361.6U Active CN207051110U (en) | 2017-08-04 | 2017-08-04 | A kind of test fixture for composite wood charge level out-draw |
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| CN (1) | CN207051110U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507027A (en) * | 2018-11-16 | 2019-03-22 | 西北工业大学 | Test sample, fixture and the method for Continuous Fiber Reinforced Ceramic Matrix Composites face out-draw intensity |
-
2017
- 2017-08-04 CN CN201720969361.6U patent/CN207051110U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507027A (en) * | 2018-11-16 | 2019-03-22 | 西北工业大学 | Test sample, fixture and the method for Continuous Fiber Reinforced Ceramic Matrix Composites face out-draw intensity |
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