CN109738274A - Fibre reinforced composites microscopic test loading device - Google Patents
Fibre reinforced composites microscopic test loading device Download PDFInfo
- Publication number
- CN109738274A CN109738274A CN201910060818.5A CN201910060818A CN109738274A CN 109738274 A CN109738274 A CN 109738274A CN 201910060818 A CN201910060818 A CN 201910060818A CN 109738274 A CN109738274 A CN 109738274A
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- China
- Prior art keywords
- collet
- pedestal
- fibre reinforced
- reinforced composites
- loading device
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Abstract
The invention discloses a kind of fibre reinforced composites microscopic test loading device, including pedestal and clamping part, charging assembly, load transducer, linear displacement transducer on the base are set；Clamping part includes the first collet, the second collet, and the second collet is fixedly connected with pedestal, and the position of the first collet is opposite with the second collet, and the first collet, the second collet clamp the both ends of sample respectively；Load transducer is used to measure the loading force of test specimen, and one end of load transducer is connected with the first collet, and the other end is connected with charging assembly；The side of clamping part is equipped with linear displacement transducer, and for measuring the deflection of sample, one end of the linear displacement transducer is fixedly connected with pedestal, and the other end is fixedly connected with charging assembly.Microcosmic observation difficulty when the present invention loads is low, and measurement accuracy is high, zero floats low, and metallographic microscope can be cooperated to carry out microcosmic load test to fibre reinforced composites.
Description
Technical field
The present invention relates to composite materials testing devices, load and fill more particularly to fibre reinforced composites microscopic test
It sets.
Background technique
In Modern Composite Materials research, interface performance for fiber and resin boundary surface performance, fibre bundle and matrix and
The research of laminate interlayer performance is more deep, and researcher studies its essential performance, test often from material micro-scale
It demonstrate,proves whether its interface switching performance meets technical requirement, provides data support for the progress of interface switching performance.
When carrying out the research of composite material microscopic test under metallographic microscope, common loading device needs mobile metallographic aobvious
Micro mirror increases the difficulty of observation, and ordinary load device range is excessive, leads to measurement error and zero sails height, reduces
Measurement accuracy.
Summary of the invention
Goal of the invention: the purpose of the present invention is to overcome the shortcomings in the prior art and to provide a kind of fiber reinforcements
Composite material microscopic test loading device reduces microcosmic observation difficulty when load, and measurement accuracy is high, can cooperate metallography microscope
Mirror carries out microcosmic load test to fibre reinforced composites.
Technical solution: the fibre reinforced composites microscopic test loading device in the present invention, including pedestal, the load
Device further includes clamping part, charging assembly, load transducer, the linear displacement transducer set on the base；The clamping part packet
The first collet, the second collet are included, the second collet is fixedly connected with pedestal, and the position of the first collet is opposite with the second collet, and first
Collet, the second collet clamp the both ends of sample respectively；The load transducer is used to measure the loading force of test specimen, load transducer
One end be connected with the first collet, the other end is connected with charging assembly；The side of the clamping part is equipped with linear displacement transducer,
For measuring the deflection of sample, one end of the linear displacement transducer is fixedly connected with pedestal, the other end and charging assembly
It is fixedly connected.
Charging assembly includes sliding rail, sliding block, driving mechanism, and sliding rail is symmetricly set on the two sides of clamping part, and sliding block is equipped with
Through-hole, sliding rail pass through the through-hole on sliding block and fix on the base；The driving mechanism is connected with sliding block, and driving mechanism, which drives, to be slided
Block moves in a straight line on the slide rail and then to sample loading and unloading.
Sliding block top is equipped with groove, is equipped with thrust bearing in groove；The driving mechanism includes screw rod, and screw lower end is equipped with
The shaft shoulder, screw rod passes through pedestal and thrust bearing is rotatablely connected, and screw rod is connect with base thread, and thrust bearing top is equipped with baffle ring,
By turn screw rod to be moved up and down with movable slider.
Further, linear bearing is equipped in the through-hole on sliding block.When the setting of linear bearing can reduce its sliding
Frictional resistance.
Further, the first collet, screw hole and bolt through collet are equipped on the second collet, pass through turn bolt tune
Save the openings of sizes of collet.
Inventive principle: the fibre reinforced composites microscopic test loading device in the present invention, by fiber-reinforced composite material
Test specimen clamping is expected on position opposite the first collet and the second collet, by the screw rod above rotating base, screw rod and sliding block
It is connected, therefore has driven sliding block to do linear motion up and down on the slide rail while screw rod rotation, and then can load and unload to test specimen
It carries.Load transducer is connect with linear displacement transducer with digital acquisition device, will be carried out Test Data Collecting to it with this, and be passed through
Rotary screw is loaded.Device cooperation metallographic microscope can realize the micro mechanical property examination of fibre reinforced composites
It tests.
The utility model has the advantages that compared with prior art, the present invention having the advantages that microcosmic sight when 1) present invention load simultaneously
It is low to survey difficulty, at the same measurement accuracy is high, zero float it is low, can cooperate metallographic microscope to fibre reinforced composites carry out it is microcosmic plus
Test is carried, experimentation cost is reduced；2) simple structure of the present invention does not need special machining shape, and easy to process and maintenance can
It is conveniently accomplished test mission；3) present invention uses symmetric design, to neutral good, controllability height, the most of examination of range satisfaction
Requirement is tested, load measurement accuracy is high.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention；
Fig. 2 is main view of the invention；
Fig. 3 is the cross-sectional view in the face A-A in Fig. 2；
Fig. 4 is the schematic perspective view of pedestal, sliding block and screw rod.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown, fibre reinforced composites microscopic test loading device of the invention includes pedestal 1, clamping part, adds
Carry component, load transducer 5, linear displacement transducer 6.
The upper and lower end of pedestal 1 is respectively equipped with upper substrate 10 and lower substrate 2, and upper substrate 10, lower substrate 2 are solid by bolt
It is scheduled on pedestal 1.Clamping part includes the first collet 3, the second collet 4, and the lower end of the second collet 4 is bolted on lower substrate
On 2, the first collet 3 is opposite with the position of the second collet 4, and the first collet 3, the second collet 4 clamp the both ends of sample respectively, and first
It is equipped with the screw hole and bolt 12 through collet on collet 3, the second collet 4, passes through opening for the adjustable collet of turn bolt 12
Mouth size.
Charging assembly includes sliding rail 7, sliding block 8, screw rod, and two cylindrical sliding rails 7 are symmetrically disposed on the left and right two of clamping part
Side, sliding block 8 are equipped with corresponding two through-holes, and linear bearing 16 is equipped in through-hole, and sliding rail 7 passes through straight in 8 through-hole of sliding block
Spool holds 16.Upper substrate 10 is equipped with corresponding through-hole, and the upper end of sliding rail 7 penetrates in the hole of upper substrate 10, and the lower end of sliding rail 7 passes through
Threaded connection is fixed on lower substrate 2.The setting of linear bearing 16 can reduce frictional resistance when its sliding, while when assembling
Using the assembling form of interference, its transverse shakiness is limited.
The middle position on 8 top of sliding block is equipped with groove, and thrust bearing 9 is equipped in groove, and upper substrate 10 is equipped with corresponding spiral shell
Pit, screw rod 11 passes through upper substrate 10 and thrust bearing 9 is rotatablely connected.The bottom end of screw rod 11 is equipped with the shaft shoulder, 9 top of thrust bearing
Equipped with baffle ring 14,9 lower part of the thrust bearing closely shaft shoulder.Screw rod 11 is threadedly coupled with upper substrate 10, and rotation is equipped at the top of screw rod 11
Handle carries out screw by the swing handle 15 on 11 top of rotary screw to move along a straight line with about 8 movable slider.Thrust
The setting of bearing 9 releases the torque that screw rod 11 acts on sliding block 8, and limits its axial shaking.
Load transducer 5 is used to measure the loading force of test specimen, and the lower end of load transducer 5, which is connected through a screw thread, is fixed on the
The upper end of one collet 3, the upper end of load transducer 5 are connected through a screw thread on the middle position for being fixed on sliding block 8.The right side of clamping part
Side is equipped with linear displacement transducer 6, for measuring the deflection of sample；Clip 13 is equipped on the right side of lower substrate 2, clip 13 passes through spiral shell
Line is fastened on lower substrate 2, and the lower end of linear displacement transducer 6 is stuck in clip 13, blending bolt locking, straight-line displacement
The upper end of sensor 6 is connected through a screw thread on the convex block for being fixed on 8 right side of sliding block.
When the loading device is tested, by fibre reinforced composites test specimen clamping in the first opposite collet 3 of position and the
On two collets 4, adjusting the bolt 12 on collet makes it clamp test specimen.After be placed in below metallography microscope endoscope objective lens, pass through rotation
Screw rod 11 above pedestal, screw rod 11 are connected with sliding block 8, therefore have driven sliding block 8 to do on sliding rail 7 while the rotation of screw rod 11
Linear motion up and down, and then can be to test specimen loading and unloading.Load transducer 5 and linear displacement transducer 6 and digital acquisition device
Connection, will carry out Test Data Collecting to it with this, be loaded by rotary screw 11.The device cooperates metallographic microscope can
Realize the micro mechanical property test of fibre reinforced composites.
Claims (6)
1. a kind of fibre reinforced composites microscopic test loading device, including pedestal (1), it is characterised in that: the load dress
Set further includes the clamping part being located on pedestal (1), charging assembly, load transducer (5), linear displacement transducer (6)；The folder
Holding portion includes the first collet (3), the second collet (4), and the second collet (4) is fixedly connected with pedestal (1), the position of the first collet (3)
It sets with the second collet (4) relatively, the first collet (3), the second collet (4) clamp the both ends of sample respectively；The load transducer
(5) for measuring the loading force of test specimen, one end of load transducer (5) is connected with the first collet (3), the other end and charging assembly
It is connected；The side of the clamping part is equipped with linear displacement transducer (6), for measuring the deflection of sample, the straight-line displacement
One end of sensor (6) is fixedly connected with pedestal (1), and the other end is fixedly connected with charging assembly.
2. fibre reinforced composites microscopic test loading device according to claim 1, it is characterised in that: the load
Component includes sliding rail (7), sliding block (8), driving mechanism, and sliding rail (7) is symmetricly set on the two sides of clamping part, and sliding block (8) is equipped with
Through-hole, sliding rail (7) pass through the through-hole on sliding block (8) and are fixed on pedestal (1)；The driving mechanism is connected with sliding block (8), drives
Motivation structure band movable slider (8) moves in a straight line on sliding rail (7) and then to sample loading and unloading.
3. fibre reinforced composites microscopic test loading device according to claim 2, it is characterised in that: the sliding block
(8) top is equipped with groove, is equipped with thrust bearing (9) in groove；The driving mechanism includes screw rod (11), and screw rod (11) lower end is set
There is the shaft shoulder, screw rod (11) passes through pedestal (1) and thrust bearing (9) and is rotatablely connected, and screw rod (11) is threadedly coupled with pedestal (1), only
Thrust bearing (9) top is equipped with baffle ring (14), is moved up and down by turn screw rod (11) with movable slider (8).
4. fibre reinforced composites microscopic test loading device according to claim 2 or 3, it is characterised in that: described
Linear bearing (16) are equipped in through-hole on sliding block (8).
5. fibre reinforced composites microscopic test loading device according to claim 1, it is characterised in that: described first
It is equipped with the screw hole and bolt (12) through collet on collet (3), the second collet (4), opening for collet is adjusted by turn bolt
Mouth size.
6. fibre reinforced composites microscopic test loading device according to claim 1, it is characterised in that: the lower base
Plate (2) is connected with linear displacement transducer (6) by clip (13), and clip (13) is fixedly connected with lower substrate (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060818.5A CN109738274A (en) | 2019-01-22 | 2019-01-22 | Fibre reinforced composites microscopic test loading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910060818.5A CN109738274A (en) | 2019-01-22 | 2019-01-22 | Fibre reinforced composites microscopic test loading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109738274A true CN109738274A (en) | 2019-05-10 |
Family
ID=66365599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910060818.5A Pending CN109738274A (en) | 2019-01-22 | 2019-01-22 | Fibre reinforced composites microscopic test loading device |
Country Status (1)
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| CN (1) | CN109738274A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553937A (en) * | 2019-09-18 | 2019-12-10 | 哈尔滨工业大学 | tensile-tensile fatigue testing device for fiber rod body and fatigue performance evaluation method |
| CN110823681A (en) * | 2019-12-23 | 2020-02-21 | 义乌工商职业技术学院 | Rock wool board tensile strength detection mechanism |
| CN112748000A (en) * | 2021-01-29 | 2021-05-04 | 中国海洋大学 | Multi-axis testing machine and testing method for testing performance of carbon fiber composite material |
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| CN101363786A (en) * | 2008-09-18 | 2009-02-11 | 江苏明珠试验机械有限公司 | Tensile machine for stretching and extruding fiberglass-reinforced plastic lever |
| US20100186520A1 (en) * | 2008-11-12 | 2010-07-29 | Wheeler Iv Robert | Microtesting Rig with Variable Compliance Loading Fibers for Measuring Mechanical Properties of Small Specimens |
| CN102998178A (en) * | 2012-11-25 | 2013-03-27 | 南通贝思特科技咨询有限公司 | Tensile testing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110553937A (en) * | 2019-09-18 | 2019-12-10 | 哈尔滨工业大学 | tensile-tensile fatigue testing device for fiber rod body and fatigue performance evaluation method |
| CN110823681A (en) * | 2019-12-23 | 2020-02-21 | 义乌工商职业技术学院 | Rock wool board tensile strength detection mechanism |
| CN112748000A (en) * | 2021-01-29 | 2021-05-04 | 中国海洋大学 | Multi-axis testing machine and testing method for testing performance of carbon fiber composite material |
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Application publication date: 20190510 |
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| RJ01 | Rejection of invention patent application after publication |