CN107870124A - Fixture for the experiment of composite board compression performance - Google Patents

Fixture for the experiment of composite board compression performance Download PDF

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Publication number
CN107870124A
CN107870124A CN201711376892.5A CN201711376892A CN107870124A CN 107870124 A CN107870124 A CN 107870124A CN 201711376892 A CN201711376892 A CN 201711376892A CN 107870124 A CN107870124 A CN 107870124A
Authority
CN
China
Prior art keywords
plate
firm banking
composite board
optical axis
bolt
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.)
Pending
Application number
CN201711376892.5A
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Chinese (zh)
Inventor
应志平
陈杰
朱爱陈
陈晨
吴震宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Sci Tech University ZSTU
Zhejiang University of Science and Technology ZUST
Original Assignee
Zhejiang Sci Tech University ZSTU
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang Sci Tech University ZSTU filed Critical Zhejiang Sci Tech University ZSTU
Priority to CN201711376892.5A priority Critical patent/CN107870124A/en
Publication of CN107870124A publication Critical patent/CN107870124A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/02Details
    • G01N3/04Chucks

Abstract

The invention discloses a kind of fixture for the experiment of composite board compression performance, gripping in being tested for composite board compression performance, including top plate, bottom plate, upper firm banking, lower firm banking, overhead gage, lower baffle plate, linear bearing, bearing block, optical axis;Firm banking on a pair is fixed in the lower surface of top plate, is each connected with bolt on upper firm banking, upper bolt props up overhead gage;A pair of lower firm bankings are fixed in the upper surface of bottom plate, are each connected with lower bolt on lower firm banking, lower bolt props up lower baffle plate, and sheet material is clamped by upper and lower baffle plate;Two optical axises are arranged symmetrically in the both sides of sheet material, and optical axis passes through top plate and bottom plate, and the top of optical axis is cased with linear bearing, and linear bearing is arranged on bearing block, and bearing block is fixed on the upper surface of top plate, and the bottom of optical axis is connected with bottom plate.The present invention can effective fixing composite material sheet material, be easy to observe material damage phenomenon, there is the advantages that reliability is high, continuous Workable.

Description

Fixture for the experiment of composite board compression performance
Technical field
The present invention relates to the fixture of sheet material compression performance experiment, more particularly to one kind to be used for composite board compression performance The fixture of experiment.
Background technology
Compression performance experiment can determine mechanical property of the composite board under axial compressive force effect, be composite wood One of basic skills of flitch material performance detection, mainly for detection of the composite board of compressive load is born.It is compressed axially Performance is one of important mechanical property of composite board.It is multiple with the continuous increase of load during compression test The active force that condensation material both ends are subject to is also increasing, sample easily occurs and tilts and make the effect of load not in straight line On, transfers of the load along sheet material can not be ensured, cause test failure or result of the test is produced larger error.
At present, used composite board clamping device, the load that can not be compressed direction apply at this stage.Separately Outside, existing compression clamp is specific fixture on universal testing machine, be applicable pipe that those can be upright in compression process, Square tube or I-beam etc..There is higher requirement and limitation to the shape and structure of material.For the relatively thin composite panel in end face Material also lacks preferable solution.In order to accurately obtain the performance that is compressed axially of composite board, and can be easy to see The metamorphosis that material damages failure in compression process is examined, a kind of reliable, effective compression clamp of design is tested for improving Accuracy and reliability have very important meaning.
The content of the invention
Tested in order to solve the above technical problems, being used for composite board compression performance the purpose of the present invention is to propose to one kind Fixture, can accurately obtain the performance that is compressed axially of composite board, and can be easy to observe material in compression process The metamorphosis of middle damage failure.
To achieve the above object, the technical solution adopted by the present invention is:One kind is used for composite board compression performance and tried The fixture tested, for composite board compression performance test in gripping, including top plate, bottom plate, upper firm banking, under Firm banking, overhead gage, lower baffle plate, linear bearing, bearing block, optical axis;The lower surface of the top plate is at least fixed solid on a pair Determine base, be each at least provided with two the first screwed holes on upper firm banking, bolt, Mei Geshang are connected with the first screwed hole Upper bolt on firm banking props up an overhead gage, and the upper end of composite board is clamped by overhead gage;The bottom plate A pair of lower firm bankings are at least fixed in upper surface, are each at least provided with two the second screwed holes, the second screw thread on lower firm banking Lower bolt is connected with hole, the lower bolt on each lower firm banking props up a lower baffle plate, and the lower end of composite board leads to Cross lower baffle plate clamping;Two optical axises are arranged symmetrically in the both sides of composite board, and optical axis passes through top plate and bottom plate, optical axis it is upper Portion is cased with linear bearing, and linear bearing is arranged on bearing block, and bearing block is fixed on the upper surface of top plate, the bottom and bottom of optical axis Plate is connected.
Further, the bottom of the optical axis is arranged on horizontal bearing, and horizontal bearing is arranged on bearing block, bearing block It is fixed on the lower surface of bottom plate.
Further, be cased with a spring on every optical axis, one end of spring props up the lower surface of top plate, spring it is another End props up the upper surface of bottom plate.
Further, the upper bolt and lower bolt are hexagon socket head cap screw.
Further, the optical axis is solid shafting.
Compared with prior art, the present invention has the advantages that:1. the composite board that is used for of the present invention compresses The fixture of performance test is abutted by baffle plate so that material sample preferably centering, ensure transfers of the load along sheet material, it is accurate Really obtain composite board is compressed axially performance.2. the fixture for being used for the experiment of composite board compression performance of the present invention It can be easy to observe the metamorphosis that material damages failure in compression process.
Brief description of the drawings
Fig. 1 is the stereogram of the fixture for being used for the experiment of composite board compression performance of the present invention;
Fig. 2 is the schematic diagram that the sheet material of the embodiment of the present invention 1 is clamped and is pressurized;
Fig. 3 is the schematic diagram that the sheet material of the embodiment of the present invention 2 is clamped and is pressurized;
In figure:Optical axis 1, linear bearing 2, bearing block 3, top plate 4, upper bolt 5, upper firm banking 6, overhead gage 7, spring 8, Composite board 9, bottom plate 10, horizontal bearing 11, lower firm banking 12, lower bolt 13, lower baffle plate 14.
Embodiment
Figure of description 1,2,3 is referred to, the present invention is a kind of fixture for the experiment of composite board compression performance, Just accompanying drawing in conjunction with the embodiments below, is described in further detail to the specific implementation method of the present invention, so that the present invention program is more easy to In understanding and grasp.
As inscribed shown in 1-3, the present invention propose it is a kind of for composite board compression performance experiment fixture, including Away from adjustable top plate 4 and bottom plate 10, the spacing of top plate 4 and bottom plate 10 is to form the compression stroke of material, under the top plate 4 Firm banking 6 on a pair are fixed on surface, are each provided with two the first screwed holes on upper firm banking 6, are spun on the first screwed hole There is upper bolt 5, the upper bolt 5 on each upper firm banking 6 props up an overhead gage 7 (i.e. top has a pair of overhead gages 7), multiple The upper end of condensation material sheet material 9 is clamped by this to overhead gage 7;A pair of lower firm bankings 12 are fixed in the upper surface of the bottom plate 10, Two the second screwed holes each are provided with lower firm banking 12, lower bolt 13 is connected with the second screwed hole, each lower fixed bottom Lower bolt 13 on seat 12 props up a lower baffle plate 14 (i.e. bottom has a pair of lower baffle plates 14), the lower end of composite board 9 Lower baffle plate 14 is clamped by this;The upper bolt 5 and lower bolt 13 are hexagon socket head cap screw, are completed by the shearing force of screw thread Pushing action, opposite direction are reversed, and can unclamp clamping, convenient to remove sheet coupon after completing to test.
Top plate 4 has vertical direction displacement by a pair of optical axises 1 with bottom plate 10, and optical axis 1 limits the horizontal position of top plate 4 Move, especially, the upper surface of top plate 4 is fixed with bearing block 3, and linear bearing 2 is fixed with bearing block 3, and linear bearing 2 is enclosed on On optical axis 1, so that top plate 4 can slide the function of having adjustable compression space with top plate 4 in vertical direction with bottom plate 10. Spring 8 is cased with optical axis 1, one end of spring 8 props up the lower surface of top plate 4, and the other end of spring 8 props up the upper table of bottom plate 10 Face, spring 8 make the both sides uniform force of top plate 4, avoid top plate 4 from tilting.
The bottom of the optical axis 1 is arranged on horizontal bearing 11, and horizontal bearing 11 is arranged on bearing block, and bearing block is fixed In the lower surface of bottom plate 10.
For the ease of observing the morphing process of the damage failure in the compression process of composite board, this embodiment party Method has two operation embodiments:
Embodiment 1:It is easy to observe the metamorphosis of the width damage failure of sheet material, as shown in Figure 2.
Embodiment 2:It is easy to observe the metamorphosis of the thickness direction damage failure of sheet material, as shown in Figure 3.
Above two operates embodiment by adjusting overhead gage 7, upper firm banking 6, upper stud 5, lower baffle plate 14, lower fixation The position of base 12, lower stud 13, wherein mainly adjusting the position of upper firm banking 6 and lower firm banking 12.Top plate 4 and bottom Four screwed holes are respectively equipped with plate 10, for the installation of upper firm banking 6 and lower firm banking 12, the distribution of four screwed holes Position is four angles of square, and so setting can effectively make firm banking 6 adjust installation site and lower fixation on the top plate 4 Base 12 adjusts installation site on bottom plate 10 (two installation sites are just mutually perpendicular to).
During concrete operations, the spacing of top plate 4 and bottom plate 10 is adjusted, then sheet material is positioned between top plate 4 and bottom plate 10, The position of top plate 4 is adjusted, sheet end surface is connected to top plate 4 and bottom plate 10.By the upper and lower baffle plate of hexagon socket head cap screw pushing tow, make Upper and lower baffle plate clamps sheet material, also needs plane where meeting sheet material and plane where top plate perpendicular in addition.Composite board After installing, between fixture is positioned over into universal testing machine compression flat board, experiment is compressed.It can facilitate from the front of fixture Carry out the metamorphosis of the damage failure of the figuratrix of sheet material.After completing compression test, by reversely rotating hexagon socket head cap screw Until sheet coupon loosens, sample is removed.
It is visible by above description:Using the present invention fixture, between top plate 4 and bottom plate 10 be provided with adjustable berth away from axle Bearing structure, the upper and lower baffle plate clamp structure at sheet material both ends also adjustable berth away from can be used to the composite panel to different sizes Material sample is compressed performance test, improves the applicability of fixture, additionally improves sheet material centering in compression process, Make compression performance result of the test more accurately and reliably;The firm banking in adjustable direction conveniently observes the damage of the figuratrix of sheet material Hinder the metamorphosis of failure.
The present invention still has numerous embodiments, all technical sides formed using equivalents or equivalent transformation Case, it is within the scope of the present invention.

Claims (4)

  1. A kind of 1. fixture for the experiment of composite board compression performance, it is characterised in that:Including top plate, bottom plate, upper fixation Base, lower firm banking, overhead gage, lower baffle plate, linear bearing, bearing block, optical axis etc.;
    Firm banking on a pair is at least fixed in the lower surface of the top plate, is each at least provided with two the first spiral shells on upper firm banking Pit, bolt is connected with the first screwed hole, the upper bolt on each upper firm banking props up an overhead gage, composite The upper end of sheet material is clamped by overhead gage;
    A pair of lower firm bankings are at least fixed in the upper surface of the bottom plate, are each at least provided with two the second spiral shells on lower firm banking Pit, lower bolt is connected with the second screwed hole, the lower bolt on each lower firm banking props up a lower baffle plate, composite The lower end of sheet material is clamped by lower baffle plate;
    Two optical axises are arranged symmetrically in the both sides of composite board, and optical axis passes through top plate and bottom plate, and the top of optical axis is cased with directly Bobbin is held, and linear bearing is arranged on bearing block, and bearing block is fixed on the upper surface of top plate, and the bottom of optical axis is connected with bottom plate.
  2. 2. the fixture for the experiment of composite board compression performance as claimed in claim 1, it is characterised in that:The optical axis Bottom be arranged on horizontal bearing on, horizontal bearing be arranged on bearing block on, bearing block is fixed on the lower surface of bottom plate.
  3. 3. the fixture for the experiment of composite board compression performance as claimed in claim 1, it is characterised in that:Every optical axis On be cased with a spring, one end of spring props up the lower surface of top plate, and the other end of spring props up the upper surface of bottom plate.
  4. 4. the fixture for the experiment of composite board compression performance as claimed in claim 1, it is characterised in that:The upper spiral shell Bolt and lower bolt are hexagon socket head cap screw.
CN201711376892.5A 2017-12-19 2017-12-19 Fixture for the experiment of composite board compression performance Pending CN107870124A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711376892.5A CN107870124A (en) 2017-12-19 2017-12-19 Fixture for the experiment of composite board compression performance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711376892.5A CN107870124A (en) 2017-12-19 2017-12-19 Fixture for the experiment of composite board compression performance

Publications (1)

Publication Number Publication Date
CN107870124A true CN107870124A (en) 2018-04-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711376892.5A Pending CN107870124A (en) 2017-12-19 2017-12-19 Fixture for the experiment of composite board compression performance

Country Status (1)

Country Link
CN (1) CN107870124A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110132731A (en) * 2019-06-24 2019-08-16 上海艾柯检测科技有限公司 A kind of frock clamp and method detecting composite material compressive strength
CN111795888A (en) * 2020-07-17 2020-10-20 北京航空航天大学 Composite material compression clamp with load and environment coupling effect and use method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110132731A (en) * 2019-06-24 2019-08-16 上海艾柯检测科技有限公司 A kind of frock clamp and method detecting composite material compressive strength
CN111795888A (en) * 2020-07-17 2020-10-20 北京航空航天大学 Composite material compression clamp with load and environment coupling effect and use method
CN111795888B (en) * 2020-07-17 2021-06-08 北京航空航天大学 Composite material compression clamp with load and environment coupling effect and use method

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