CN207300729U - Improve carbon fibre composite compression test test specimen accuracy of alignment fixture - Google Patents
Improve carbon fibre composite compression test test specimen accuracy of alignment fixture Download PDFInfo
- Publication number
- CN207300729U CN207300729U CN201721353176.0U CN201721353176U CN207300729U CN 207300729 U CN207300729 U CN 207300729U CN 201721353176 U CN201721353176 U CN 201721353176U CN 207300729 U CN207300729 U CN 207300729U
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- carbon fibre
- fibre composite
- bracket groove
- card
- bottom plate
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Abstract
The utility model provides a kind of raising carbon fibre composite compression test test specimen accuracy of alignment fixture, including bottom plate, the bottom of bottom plate is equipped with the card-bit part of more than three, card-bit part uniform ring is set around bottom and card-bit part is vertically arranged with bottom, card-bit part is collectively forming the screens groove for accommodating testing machine chassis, and bottom plate is equipped with more than one to bracket groove position；This kind improves carbon fibre composite compression test test specimen accuracy of alignment special fixture, and structure design is simple, reasonable, and manufacturing cost and use cost is cheap, is easy to load and unload, clear up and safeguard.It can meet the centering of the compression specimens of carbon fibre composite under three kinds of different compression standards at the same time using this fixture, and accuracy of alignment is higher.Compression test efficiency can be increased substantially using this fixture.
Description
Technical field
The technical field of carbon fibre composite mechanical test is the utility model is related to, it is fine to improve carbon more particularly to one kind
Tie up composite material compression test test specimen accuracy of alignment fixture.
Background technology
Carbon fibre composite is because of strong, the Ke Yida that has the advantages that high specific stiffness, high specific strength, endurance, designability
To the purpose of mitigating architecture quality, increase anti-fatigue performance and structure designability, this make it that carbon fibre composite is extensive
Be applied to the field such as aerospace, military equipment, sports goods, automobile making.
The building-block type approach of carbon fiber composite structure verification is to test composite material test piece level as most basic
Content, for obtaining the mechanical performance data of material foundation.Therefore, Compound Material Engineering experiment is one of crucial importance and basic
Work.But Compound Material Engineering experiment limits carbon fibre composite to a certain extent since disturbing factor is more
Development and use.
Compression performance be carbon fibre composite it is most important be also most critical one of mechanical property, and with other examinations
Part level mechanical test is compared, and influences that the factor of compression test is most, and the implementation of experiment is also the most complicated.At present, existing compression
Test method is mainly summarised as three classes:A) load is incorporated into test specimen active section by shearing；b）Pass through end load and side
Load is incorporated into test specimen active section by shearing combination；c）Load is incorporated into by test specimen active section by end load.Common pressure
Load mode has ASTM D6484 methods B, ASTM D6641, the ASTM revised there are end bearing in contracting testing standard
The standards such as D695.Due to its distinctive load mode, if it cannot be guaranteed that the accuracy of alignment of compression specimens, is tried during experiment
Flexing easily occurs during part stand under load, occurs unstable failure in advance, ultimately results in result of the test exception, it is impossible to actual response carbon fiber
The performance of composite material.Therefore, for ASTM D6484 (method B), ASTM D6641, revision ASTM D695 standards, into
During row compression test, it is necessary to assure test specimen centering, and overlapped with testing machine loading axis.
At present, the country is when carrying out carbon fibre composite compression test, to ensure the accuracy of alignment of compression specimens, generally
Fixture is drawn according to grip size on chassis to place line or some are directly installed on chassis removably to middle bar.But adopt
With the mode of setting-out centering, there are 1）Different personnel in setting-out all there are certain deviation, it is and higher to personnel's skill requirement；
2）It can only lean on whether personal observations' compression clamp is in place, accuracy is poor.And by the way of centering bar is installed, there are 1）
Different compression standards are cumbersome since compression clamp size is different, it is necessary to installed in different positions to middle bar； 2）Test specimen
Powder after destruction easily blocks the bolt hole on chassis, safeguards and cleaning is more difficult.
Utility model content
The purpose of this utility model is to provide a kind of raising carbon fibre composite compression test test specimen accuracy of alignment fixture,
Make and use cost is cheap, operating process is simple, can meet the centering of test specimen under three kinds of common compression test standards at the same time simultaneously
And precision is higher, test efficiency can also be increased substantially, it is poor to solve accuracy existing in the prior art, cumbersome,
Safeguard and clear up the problem of more difficult.
The technical solution of the utility model is：
One kind improves carbon fibre composite compression test test specimen accuracy of alignment fixture, including bottom plate, the bottom of bottom plate are set
There is the card-bit part of more than three, card-bit part uniform ring is set around bottom and card-bit part is vertically arranged with bottom, the common shape of card-bit part
Into the screens groove for accommodating testing machine chassis, bottom plate is equipped with more than one to bracket groove position.
Further, card-bit part uses square plate or arc panel.
Further, bottom plate uses circular bottom plate.
Further, bottom plate is additionally provided with notch, and notch is connected to bracket groove position.
Further, first pair of bracket groove, second pair of bracket groove and the 3rd pair of bracket groove, first pair of bracket groove difference are included to bracket groove position
Connect second pair of bracket groove and the 3rd pair of bracket groove.
Further, the application method of the raising carbon fibre composite compression test test specimen accuracy of alignment fixture is：It is first
First the card-bit part of bottom plate is positioned on testing machine chassis, then compression specimens are installed in corresponding compression clamp, then will
The compression clamp is placed on testing machine chassis and aligns with bottom plate to bracket groove position so that compression specimens longitudinal axis with
Testing machine loading axis overlaps.
The beneficial effects of the utility model are：It is special that this kind improves carbon fibre composite compression test test specimen accuracy of alignment
Fixture, structure design is simple, reasonable, and manufacturing cost and use cost is cheap, is easy to load and unload, clear up and safeguard.Can be same using this fixture
When meet the centerings of the compression specimens of carbon fibre composite under three kinds of different compression standards, and accuracy of alignment is higher.Use
This fixture can increase substantially compression test efficiency.
Brief description of the drawings
Fig. 1 is the structure that the utility model embodiment improves carbon fibre composite compression test test specimen accuracy of alignment fixture
Schematic diagram；
Fig. 2 is that embodiment improves carbon fibre composite compression test test specimen accuracy of alignment fixture and the knot on testing machine chassis
Structure schematic diagram.
Fig. 3 is that embodiment improves carbon fibre composite compression test test specimen accuracy of alignment fixture and testing machine chassis, pressure
The structure diagram of contracting fixture, compression specimens.
Wherein：1- bottom plates, 2- card-bit parts, 3- is to bracket groove position, 4- notches, 5- testing machines chassis, 6- compression clamps, 7- compressions
Test specimen；31- first is to bracket groove, and 32- second is to bracket groove, the 3rd pair of bracket groove of 33-.
Embodiment
Describe the preferred embodiment of the utility model in detail below in conjunction with the accompanying drawings.
Embodiment
One kind improves carbon fibre composite compression test test specimen accuracy of alignment fixture, such as Fig. 1, including bottom plate 1, bottom plate 1
Bottom be equipped with the card-bit part 2 of more than three, 2 uniform ring of card-bit part is set around bottom and card-bit part 2 is vertically arranged with bottom, card
Position part 2 is collectively forming the screens groove for accommodating testing machine chassis 5, and bottom plate 1 is equipped with more than one to bracket groove position 3.
This kind improves carbon fibre composite compression test test specimen accuracy of alignment special fixture, and structure design is simple, reasonable,
Manufacturing cost and use cost is cheap, is easy to load and unload, clear up and safeguard.It can be met at the same time under three kinds of different compression standards using this fixture
The centering of the compression specimens 7 of carbon fibre composite, and accuracy of alignment is higher.Compression examination can be increased substantially using this fixture
Test efficiency.
Card-bit part 2 uses square plate or arc panel.
Bottom plate 1 uses circular bottom plate 1.Bottom plate 1 is additionally provided with notch 4, and notch 4 is connected to bracket groove position 3, and the setting of notch 4 is just
In placing compression clamp 6, and lighter in weight.First pair of bracket groove, 31, second pairs of bracket grooves 32 and the 3rd pair of bracket groove are included to bracket groove position 3
33, first pair of bracket groove 31 is respectively communicated with second pair of bracket groove 32 and the 3rd pair of bracket groove 33, by setting three different sizes and position
To bracket groove, each the size to bracket groove and position are gone out according to 6 size design of compression clamp of different tests standard, are only needed
The compression clamp 6 for installing test specimen is ensured that into 7 centering of compression specimens with corresponding align to bracket groove, accuracy of alignment is higher.
It is multiple to bracket groove by setting, it can adapt to, to a compression clamp 6, increase utilization rate, reduce cost.
Embodiment installs a special fixture when carrying out carbon fibre composite compression test on testing machine chassis 5.
The making of the fixture and use cost are cheap, and operating process is simple, can meet test specimen under three kinds of common compression test standards at the same time
Centering and precision it is higher, test efficiency can also be increased substantially.
The application method of the raising carbon fibre composite compression test test specimen accuracy of alignment fixture is：Such as Fig. 2, first will
The card-bit part 2 of bottom plate 1 is positioned on testing machine chassis 5, and then compression specimens 7 are installed in corresponding compression clamp 6, is such as schemed
3, then the compression clamp 6 is placed on testing machine chassis 5 and is alignd with bottom plate 1 to bracket groove position 3, so that compression examination
7 longitudinal axis of part is overlapped with testing machine loading axis.
The special fixture of embodiment is that installing and dismounting is extremely simple by 2 precise positioning of card-bit part on testing machine chassis 5
Singly, conveniently, it is and relatively low to personnel's technology and skill requirement.
The fixture of embodiment can meet the centering of test specimen under three kinds of common compression standards of carbon fibre composite at the same time,
Only the compression clamp 6 for installing test specimen need to be ensured that test specimen centering with corresponding align to bracket groove position.The fixture makes
It is cheap with use cost, there is the characteristics of simple, convenient, precision is high.
Claims (5)
1. one kind improves carbon fibre composite compression test test specimen accuracy of alignment fixture, it is characterised in that：Including bottom plate, bottom plate
Bottom be equipped with the card-bit part of more than three, card-bit part uniform ring is vertically arranged around bottom setting and card-bit part with bottom, screens
Part is collectively forming the screens groove for accommodating testing machine chassis, and bottom plate is equipped with more than one to bracket groove position.
2. carbon fibre composite compression test test specimen accuracy of alignment fixture is improved as claimed in claim 1, it is characterised in that：
Card-bit part uses square plate or arc panel.
3. carbon fibre composite compression test test specimen accuracy of alignment fixture is improved as claimed in claim 1, it is characterised in that：
Bottom plate uses circular bottom plate.
4. carbon fibre composite compression test test specimen accuracy of alignment fixture is improved as claimed in claim 1, it is characterised in that：
Bottom plate is additionally provided with notch, and notch is connected to bracket groove position.
5. such as claim 1-3 any one of them improves carbon fibre composite compression test test specimen accuracy of alignment fixture, its
It is characterized in that：First pair of bracket groove, second pair of bracket groove and the 3rd pair of bracket groove, first pair of bracket groove are included to bracket groove position and are respectively communicated with second
To bracket groove and the 3rd pair of bracket groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721353176.0U CN207300729U (en) | 2017-10-20 | 2017-10-20 | Improve carbon fibre composite compression test test specimen accuracy of alignment fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721353176.0U CN207300729U (en) | 2017-10-20 | 2017-10-20 | Improve carbon fibre composite compression test test specimen accuracy of alignment fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207300729U true CN207300729U (en) | 2018-05-01 |
Family
ID=62273528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721353176.0U Withdrawn - After Issue CN207300729U (en) | 2017-10-20 | 2017-10-20 | Improve carbon fibre composite compression test test specimen accuracy of alignment fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207300729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677541A (en) * | 2017-10-20 | 2018-02-09 | 江苏恒神股份有限公司 | Improve carbon fibre composite compression test test specimen accuracy of alignment fixture |
-
2017
- 2017-10-20 CN CN201721353176.0U patent/CN207300729U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677541A (en) * | 2017-10-20 | 2018-02-09 | 江苏恒神股份有限公司 | Improve carbon fibre composite compression test test specimen accuracy of alignment fixture |
| CN107677541B (en) * | 2017-10-20 | 2023-08-18 | 江苏恒神股份有限公司 | Clamp for improving centering precision of carbon fiber composite material compression test piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180501 Effective date of abandoning: 20230818 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180501 Effective date of abandoning: 20230818 |