CN108956284A - The multifunctional test fixture of automobile roof beam - Google Patents
The multifunctional test fixture of automobile roof beam Download PDFInfo
- Publication number
- CN108956284A CN108956284A CN201811115184.0A CN201811115184A CN108956284A CN 108956284 A CN108956284 A CN 108956284A CN 201811115184 A CN201811115184 A CN 201811115184A CN 108956284 A CN108956284 A CN 108956284A
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- China
- Prior art keywords
- upper fixture
- lower clamp
- roof beam
- clamp body
- test
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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
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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)
- Connection Of Plates (AREA)
Abstract
The invention discloses a kind of multifunctional test fixtures of automobile roof beam.The test fixture includes: upper fixture body, and inside is equipped with upper fixture body inclined surface；Lower clamp body, inside are equipped with the lower clamp body inclined surface being bonded with upper fixture body inclined surface；Bolt hole, is arranged in the corner location of upper fixture body and on the position of the lower clamp body of the bolt hole same position of upper fixture body, and the bolt hole communicates through upper fixture body and lower clamp body；And bolt, bolt hole is passed through, is fixed and is locked by nut.Wherein, the length of upper fixture body is shorter than the length of lower clamp body.Inclined surface can be bonded completely with the inclined-plane of testpieces in the multifunctional test fixture, so that pressure head of testing machine compressive load is transferred uniformly into testpieces in compression test, it prevents from destroying in the retaining part of fixture, and requirement of the compression test test curved to smaller clamping zone and to larger clamping zone can be met simultaneously at 3 points.
Description
Technical field
The present invention relates to the technical fields of test fixture, especially with regard to a kind of multifunction test of automobile roof beam
Fixture.
Background technique
Automobile roof beam is a kind of domes, is the main load part in automobile top cover assembly, roof bow
Mechanical property plays an important role to automobile top cover assembly performance.
Currently, the lightweight in order to realize automobile roof beam, through frequently with new material such as carbon fibre composite, magnalium
Alloy material crossbeam substitutes original steel material crossbeam to realize loss of weight, and therefore, the test of novel material automobile roof bow becomes
Essential means in automobile roof beam mechanical property research.
It, need to be to two kinds of materials to guarantee that the mechanical property of carbon fibre composite roof bow is not less than raw steel material crossbeam
The mechanical property of roof bow carries out experimental study.But lack necessity for the specific structure of novel material automobile roof bow
Test fixture carry out clamping test, current test field of fixtures, which does not have, to be completed automobile roof beam and is compressed axially and 3 points are curved
The fixture of song test, can not be normally carried out so as to cause mechanical property test.
Therefore, it is highly desirable that a kind of test fixture suitable for automobile roof beam is arranged.
Summary of the invention
The purpose of the present invention is to provide a kind of multifunctional test fixtures of automobile roof beam, are able to solve existing examination
Test field of fixtures do not have complete automobile roof beam be compressed axially and the fixture of three point bending test so that mechanical property try
Test the problem of can not being normally carried out.
To achieve the above object, the present invention provides the multifunctional test fixtures of automobile roof beam, comprising:
Upper fixture body, inside are equipped with upper fixture body inclined surface；
Lower clamp body, inside are equipped with the lower clamp body inclined surface being bonded with the upper fixture body inclined surface；
Bolt hole is arranged on upper fixture body and lower clamp body；And
Bolt passes through bolt hole, is fixed and is locked by nut；
Wherein, the upper fixture body and lower clamp body are used to clamp the end of automobile roof beam.
In a preferred embodiment, the length of above-mentioned upper fixture body is shorter than the length of lower clamp body.
In a preferred embodiment, the length setting of above-mentioned upper fixture body should not influence the vehicle top when being compressed axially
The normal deformation of lid crossbeam.
In a preferred embodiment, the length of above-mentioned lower clamp body can all cover the end of automobile roof beam.
In a preferred embodiment, above-mentioned bolt hole be arranged in upper fixture body corner location and with upper fixture body
Bolt hole same position lower clamp body position on.
In a preferred embodiment, above-mentioned bolt hole communicates through upper fixture body and lower clamp body.
In a preferred embodiment, above-mentioned automobile roof beam is prepared using carbon fibre composite.
Compared with prior art, it has the following beneficial effects: according to the present invention
(1) upper fixture body in the present invention, be equipped with inclined surface on the inside of lower clamp body, the inclined surface and testpieces
Inclined-plane can be bonded completely, and after test fixture locking, load can be transmitted by the inclined ramp, so that compression test pilot scale
It tests compressing head compressive load and is transferred uniformly into testpieces, prevent from destroying in the retaining part of fixture.
(2) upper fixture body, lower clamp body are arranged using different length, specifically setting using short upper fixture and long lower fixture
It sets, requirement of the compression test test curved to smaller clamping zone and to larger clamping zone can be met simultaneously at 3 points.
In short, multifunctional test fixture of the present invention is used to clamp automobile roof beam in compression and three point bending test
Both ends play the role of supporting automobile roof beam, realize the mechanical property test of automobile roof beam, be both able to satisfy vehicle top
The requirement of lid crossbeam three point bending test, and it is able to satisfy the purpose that axial compression test uniformly reliably loads, prevent mechanical property from trying
It both ends when testing in automobile roof beam, can be simultaneously as the folder being compressed axially with three point bending test there is a situation where destroying
Tool, realizes a kind of two kinds of purposes of fixture, it is possible to reduce test fixture being equipped with and manufacturing, and can be reduced the fixture cost of test
And the time.
Detailed description of the invention
Fig. 1 is the structure chart of lower clamp body in multifunctional test fixture according to an embodiment of the present invention.
Fig. 2 is the structure chart of upper fixture body in multifunctional test fixture according to an embodiment of the present invention.
Fig. 3 is the assembly structure figure of multifunctional test fixture according to an embodiment of the present invention.
Fig. 4 is the schematic diagram of automobile roof beam three-point bending according to an embodiment of the present invention.
Fig. 5 is the schematic diagram that automobile roof beam according to an embodiment of the present invention is compressed axially.
Main appended drawing reference explanation:
Clamp body inclined surface under 1-, 2- bolt hole, 3- upper fixture body inclined surface, 4- bolt, 5- are bonded with pressure head
Face, 6- pressure head.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 1 to Figure 3, the multifunctional test fixture of automobile roof beam according to the preferred embodiment of the present invention,
It include: upper fixture body, inside is equipped with upper fixture body inclined surface 3；Lower clamp body, inside are equipped with and upper fixture body nauropemeter
The lower clamp body inclined surface 1 that face 3 is bonded；Bolt hole 2, be arranged in upper fixture body corner location and with upper fixture body
On the position of the lower clamp body of bolt hole same position, and the bolt hole communicates through upper fixture body and lower clamp body；With
And bolt 4, bolt hole 2 is passed through, is fixed and is locked by nut.
Specifically, the length of above-mentioned upper fixture body is shorter than the length of lower clamp body.
Specifically, the length setting of above-mentioned upper fixture body should not influence the normal change of the automobile roof beam when being compressed axially
Shape.
Specifically, the length of above-mentioned lower clamp body can all cover the metalwork at automobile roof beam both ends.
Specifically, above-mentioned automobile roof beam is prepared using carbon fibre composite.
Specifically, the end of automobile roof beam is clipped in multifunctional test fixture by above-mentioned upper fixture body and lower clamp body
It is intermediate.
Application method is: clamping beam-end with upper fixture body, lower clamp body respectively at the both ends of automobile roof beam
Metalwork edge, automobile roof beam end is clipped in the centre of multifunctional test fixture, led to by upper fixture body and lower clamp body
It crosses four bolts 4 and realizes fixed locking.
When carrying out three point bending test, upper and lower clamp body clamps the both ends of automobile roof beam, and being placed in has circle
On the supporting element on column surface, the column indenter indentation applies compressive load in the intermediate of automobile roof beam on testing machine, as shown in Figure 4.
Wherein, three point bending test mainly examines the mechanical property of carbon fiber composite structure in roof bow, avoids roof bow
The metalwork at both ends generates destruction, and therefore, the both ends of automobile roof beam should use the folder of larger area in three point bending test
Tool is supported.
When carrying out axial compression test, upper and lower clamp body clamps the both ends of automobile roof beam, is placed on examination vertically
It tests on machine platform, the pressure head 6 on testing machine is pressed in fixture on the binding face of pressure head 5, is applied to automobile roof beam and is compressed
Load, as shown in Figure 5.Wherein, in practice, roof bow is welded together by metalwork edge and automobile top cover；In axis
Into compression test, for the actual installation state as far as possible close to roof bow in automobile top cover assembly, and due to practical peace
The welding region of metal connecting key is smaller in dress state, and therefore, roof bow both ends constraint cannot be too long, Jin Ershang,
The clamping length of lower clamp body cannot be too long.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (7)
1. a kind of multifunctional test fixture of automobile roof beam, which is characterized in that the multifunctional test fixture includes:
Upper fixture body, inside are equipped with upper fixture body inclined surface (3)；
Lower clamp body, inside are equipped with the lower clamp body inclined surface (1) being bonded with the upper fixture body inclined surface (3)；
Bolt hole (2) is arranged on upper fixture body and lower clamp body；And
Bolt (4) passes through bolt hole (2), is fixed and is locked by nut；
Wherein, the upper fixture body and lower clamp body are used to clamp the end of automobile roof beam.
2. multifunctional test fixture as described in claim 1, which is characterized in that the length of the upper fixture body is than lower clamp body
Length it is short.
3. multifunctional test fixture as described in claim 1, which is characterized in that not Ying Ying is arranged in the length of the upper fixture body
Ring the normal deformation of the automobile roof beam when being compressed axially.
4. multifunctional test fixture as described in claim 1, which is characterized in that the length of the lower clamp body can be covered all
The end of automobile roof beam.
5. multifunctional test fixture as described in claim 1, which is characterized in that the bolt hole (2) is arranged in upper fixture body
Corner location and on the position of the lower clamp body of the bolt hole same position of upper fixture body.
6. multifunctional test fixture as described in claim 1, which is characterized in that the bolt hole (2) communicates through upper fixture
Body and lower clamp body.
7. multifunctional test fixture as described in claim 1, which is characterized in that the automobile roof beam is multiple using carbon fiber
Condensation material preparation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811115184.0A CN108956284A (en) | 2018-09-25 | 2018-09-25 | The multifunctional test fixture of automobile roof beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811115184.0A CN108956284A (en) | 2018-09-25 | 2018-09-25 | The multifunctional test fixture of automobile roof beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108956284A true CN108956284A (en) | 2018-12-07 |
Family
ID=64472087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811115184.0A Pending CN108956284A (en) | 2018-09-25 | 2018-09-25 | The multifunctional test fixture of automobile roof beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108956284A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019112909A1 (en) * | 2019-05-16 | 2020-11-19 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Test stand for the bridge of a body tunnel and use of such a test stand |
-
2018
- 2018-09-25 CN CN201811115184.0A patent/CN108956284A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102019112909A1 (en) * | 2019-05-16 | 2020-11-19 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Test stand for the bridge of a body tunnel and use of such a test stand |
| DE102019112909B4 (en) * | 2019-05-16 | 2021-05-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Test stand for the bridge of a body tunnel and use of such a test stand |
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