CN106404571A - Bending fatigue test apparatus and test system - Google Patents
Bending fatigue test apparatus and test system Download PDFInfo
- Publication number
- CN106404571A CN106404571A CN201611018436.9A CN201611018436A CN106404571A CN 106404571 A CN106404571 A CN 106404571A CN 201611018436 A CN201611018436 A CN 201611018436A CN 106404571 A CN106404571 A CN 106404571A
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- China
- Prior art keywords
- test
- fatigue test
- clamping device
- flexural fatigue
- tested sample
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Classifications
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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
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
- G01N3/38—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces generated by electromagnetic means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0023—Bending
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/005—Electromagnetic means
- G01N2203/0051—Piezoelectric means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
Abstract
The invention relates to the technical field of test of mechanical performances, and provides a bending fatigue test apparatus and test system. The bending fatigue test apparatus comprises a pedestal, a test device, a clamping device and a first driving assembly, and the clamping device, the test device and the first driving assembly are respectively fixed on the pedestal; and the test device comprises a second driving assembly, a detection element and a test element which are sequentially connected, the first driving assembly drives the clamping device to make a tested sample move in a first direction, and the second driving assembly drives the detection element and the test element to synchronously move back and forth in the first direction in order to make an execution element squeeze the tested sample at a preset frequency and a preset amplitude. The test system provided by the invention comprises a data processor, a characterizing instrument and the bending fatigue test apparatus, and the data processor and the characterizing instrument cooperate with the bending fatigue test apparatus, so real-time regulation of test data and whole-course dynamic monitoring of the mechanical test process are realized.
Description
Technical field
The present invention relates to mechanics performance testing technology field, in particular to a kind of flexural fatigue test instrunment and survey
Test system.
Background technology
Fatigue of materials test is using test button or to simulate parts under circumstances, stands alternate load Circulation
And measure its fatigue behaviour criterion, and study its fracture process, the fatigue strength of evaluation material, parts or whole machine and tired longevity
The test of life.Metal fatigue test species is a lot, is commonly divided into high cycle fatigue, low-cycle fatigue, heat exhaustion, impact fatigue, corruption
Erosion fatigue, contact fatigue, vacuum fatigue, fatigue at high temperature, room temperature fatigue, fatigue at low temperatures, rotary bending fatigue, plain bending are tired
Labor, axially loaded fatigue, torsional fatigue, combined stress fatigue etc..It is suitable to be selected according to the working condition of metallic article
Fatigue test method.At present, the device that can test flexural fatigue test is less.
It is impossible to micro- by means of scanning electron microscope, Raman spectrometer, laser co-focusing in the dynamic process of test
The micro-imaging assemblies such as mirror, super depth-of-field microscope, under test specimen bending loading condition, carry out dynamic monitoring in real time in situ,
Lack the further investigation of the trans-scale in-situ nanometer mechanical test to macro-size, thus seriously hindering micro-structure material
Micromechanics behavior and the discovery of damage mechanisms new phenomenon, new rule.
Content of the invention
It is an object of the invention to provide a kind of flexural fatigue test instrunment, by flexural fatigue test instrunment structure
Improve, resisting fatigue test is carried out to material using piezoelectric stack, flexible hinge it is achieved that simultaneously material is curved test and
Resisting fatigue is tested, and solves conventional different performance difference instrument test, makes the problem of complex operation.
Another object of the present invention is to providing a kind of test system, this system passes through flexural fatigue test instrunment, data
Process and use cooperatively it is achieved that real-time monitoring test data with performance characterization instrument, whole dynamic monitoring mechanical test process, deep
The announcement various types of materials entering and its Micromechanics behavior of product, micromechanism of damage and load effect rule related between material property
Rule.
Embodiments of the invention are realized in：
A kind of flexural fatigue test instrunment, for carrying out fatigue property test to tested sample, including base, test dress
Put, be used for clamping the first drive component that the clamping device of tested sample is mated with clamping device.Clamping device, test device,
First drive component is individually fixed in base；The second drive component that test device includes being sequentially connected, detecting element, test unit
Part.First drive component drives clamping device so that tested sample is moved in a first direction, and the second drive component drives detecting element
Synchronously move back and forth in a first direction with testing element, so that testing element is extruded with default frequency and amplitude tested
Sample.
Preferably, the second drive component includes the second driving element, retaining element, and retaining element is fixed on base, and
First direction extends towards clamping device, and retaining element has the motion portion being connected with detecting element, the second driving element setting
In retaining element and powered motion portion moves back and forth in a first direction.
Preferably, the second driving element is piezoelectric stack.
Preferably, retaining element is flexible hinge.
Preferably, the first drive component includes servomotor and the drive mechanism being individually fixed in base, drive mechanism with
Base connects, and servomotor drives clamping device to move in a first direction by drive mechanism.
Preferably, drive mechanism include the first worm screw cooperating and the first worm gear, the second worm screw cooperating and
Second worm gear, rotating shaft, leading screw and the connecting plate with leading screw cooperation.First worm screw is connected with the output shaft of servomotor and synchronous
Rotate, and with first worm gear rotate, first worm gear drive be sheathed on rotating shaft second worm screw rotate, the second worm screw with sheathed
The second worm gear in leading screw rotates, and makes connecting plate promote clamping device to move in a first direction.
Preferably, drive mechanism also includes the first supporting construction and the second supporting construction；First supporting construction is included relatively
The first fixed part arranging and being connected with base respectively and the second fixed part, the two ends of rotating shaft rotate respectively and are arranged at the first fixation
Portion and the second fixed part.Second supporting construction includes the first connector being oppositely arranged and being connected with base respectively and the second connection
Part, the two ends of leading screw rotate respectively and are arranged at the first connector and the second connector.
Preferably, clamping device includes the pedestal that the first fixture being oppositely arranged and the second fixture are slidably connected with base,
First fixture and the second fixture are fixedly connected with pedestal, and the first fixture includes first connecting portion and first of connection that cooperate
Chuck, the second fixture includes cooperating the second connecting portion of connection and the second chuck, and the two ends of tested sample are clamped respectively
In the first chuck and the second chuck.
Preferably, the first chuck has the second direction vertical with first direction, and the first chuck is in second direction relative to
One connecting portion slides, and the second chuck slides relative to second connecting portion in second direction.
A kind of test system, including data processor, characterizes instrument, flexural fatigue test instrunment, data processor and inspection
Survey component data communication connection；Characterize instrument and flexural fatigue test instrunment cooperating, be subject to default frequency in tested sample
When rate and amplitude extruding, tested sample is carried out with performance characterization and pattern monitoring.
The beneficial effect of the embodiment of the present invention：
The present invention provides a kind of flexural fatigue test instrunment, by the improvement to flexural fatigue test instrunment structure, adopts
Piezoelectric stack, flexible hinge carry out resisting fatigue test to material it is achieved that material is curved with test and resisting fatigue survey simultaneously
Examination, solves conventional different performance difference instrument test, makes the problem of complex operation.Another object of the present invention is to providing
A kind of test system, this system passes through flexural fatigue test instrunment, data processing and performance characterization instrument use cooperatively it is achieved that
Real-time monitoring test data, whole dynamic monitoring mechanical test process, the micro object of deep announcement various types of materials and its product
Scholarship and moral conduct is, micromechanism of damage and load act on the related law and between material property.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be attached to use required in embodiment
Figure is briefly described it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
The structural representation of the flexural fatigue test instrunment that Fig. 1 provides for the embodiment of the present invention 1；
The structural representation of the flexural fatigue test instrunment that Fig. 2 provides for the embodiment of the present invention 1；
The structural representation of the flexural fatigue test instrunment that Fig. 3 provides for the embodiment of the present invention 1；
The structural representation of the flexural fatigue test instrunment that Fig. 4 provides for the embodiment of the present invention 1；
The structural representation of the testing element that Fig. 5 provides for the embodiment of the present invention 1；
The structural representation of the testing element that Fig. 6 provides for the embodiment of the present invention 1.
Icon：100- flexural fatigue test instrunment；110- base；111- base plate；113- side plate；120- test device；
121- second drive component；123- detecting element；125- testing element；The mono- cone of 1251-；1253- bicone；127- second drives
Dynamic element；129- retaining element；1291- fixed part；1293- motion portion；1295- second groove；1297- first through hole；1299-
Second through hole；130- clamping device；131- first fixture；1311- first connecting portion；1313- first chuck；132- first is recessed
Groove；133- second fixture；1331- second connecting portion；1333- second chuck；135- pedestal；137- slide block；139- guide rail；140-
First drive component；141- servomotor；143- bearing；150- drive mechanism；151- first worm screw；152- first worm gear；
153- second worm screw；154- second worm gear；155- rotating shaft；156- leading screw；157- connecting plate；161- first supporting construction；162-
First fixed part；163- second fixed part；164- second supporting construction；165- first connector；166- second connector.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments.The present invention generally described and illustrated in accompanying drawing herein is implemented
The assembly of example can be arranged with various different configurations and design.
Therefore, below the detailed description of the embodiments of the invention providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of not making creative work, broadly falls into the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represent similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then do not need it to be defined further and explains in subsequent accompanying drawing.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertical ",
The orientation of instruction such as " level ", " interior ", " outward " or position relationship are based on orientation shown in the drawings or position relationship, or should
Orientation or position relationship that invention product is usually put when using, are for only for ease of the description present invention and simplify description, and not
It is instruction or the hint device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage
Solve as indicating or implying relative importance.
Additionally, the term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, and
It is to be slightly tilted.As " level " only refers to for its direction relatively " vertical " more level, it is not this structure of expression
Must be fully horizontal, but can be slightly tilted.
In describing the invention in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or one
Body ground connects；Can be to be mechanically connected or electrically connect；Can be joined directly together it is also possible to by intermediary indirect
It is connected, can be the connection of two element internals.For the ordinary skill in the art, can be with concrete condition understanding
State term concrete meaning in the present invention.
Below in conjunction with the accompanying drawings, some embodiments of the present invention are elaborated.In the case of not conflicting, following
Feature in embodiment and embodiment can be mutually combined.
Embodiment 1
Refer to Fig. 1, the present embodiment provides a kind of flexural fatigue test instrunment 100, including base 110, test device
120th, it is used for clamping the first drive component 140 that the clamping device 130 of tested sample is mated, clamping device with clamping device 130
130th, test device 120, the first drive component 140 are individually fixed in base 110.
In the present embodiment, base 110 is L-shaped structure, including base plate 111 and side plate 113.Other enforcements in the present invention
In example, base 110 can be other shapes, and the present invention does not limit to it.
First drive component 140 includes servomotor 141 and the drive mechanism 150 being individually fixed in base 110, driver
Structure 150 is connected with base 110, and servomotor 141 drives clamping device 130 X motion in a first direction by drive mechanism 150.
Refer to Fig. 2, drive mechanism 150 includes the first worm screw 151 cooperating and the first worm gear 152, cooperates
The second worm screw 153 and the second worm gear 154, rotating shaft 155, leading screw 156 and with leading screw 156 cooperation connecting plate 157.Servo electricity
Machine 141 is arranged on the side away from test device 120 for the base plate 111 by bearing 143, and the first worm screw 151 is remote with servomotor 141
Connect from one end of test device 120, the first worm screw 151 is rotated with the output shaft synchronous of servomotor 141.First worm screw 151
Coordinate with the first worm gear 152 and rotate, the first worm gear 152 is connected with one end of rotating shaft 155, the first worm gear 152 drives to be sheathed on and turns
Second worm screw 153 of axle 155 rotates.Second worm screw 153 and the second worm gear 154 cooperation rotation, the second worm gear 154 and leading screw 156
One end connect, the second worm gear 154 actuating sleeve located at leading screw 156 connecting plate 157 in a first direction X motion.
Drive mechanism 150 also includes the first supporting construction 161 and the second supporting construction 164.First supporting construction 161 includes
The first fixed part 162 being oppositely arranged and the second fixed part 163.First fixed part 162 and the second fixed part 163 are separately positioned on
The two ends of the end face away from test device 120 for the base plate 111, rotating shaft 155 passes through the second fixed part away from one end of the first worm gear 152
163 are connected with the first fixed part 162, and rotating shaft 155 rotates in the first supporting construction 161.Second supporting construction 164 is included relatively
First connector 165 of setting and the second connector 166.The upper surface of the first connector 165 and base plate 111 is away from test device
120 one end is fixedly connected, and the second connector 166 is installed between the first connector 165 and side plate 113.Leading screw 156 is away from
One end of two worm gears 154 is flexibly connected through the first connector 165 with the second connector 166, and leading screw 156 can support knot second
Rotate in structure 164.In the present embodiment, the first supporting construction 161 and the second supporting construction 164 are square structure, in the present invention
Other embodiment in, the first supporting construction 161 and the second supporting construction 164 can be other shapes, and the present invention is to its shape
Do not limit.
Refer to Fig. 2 and Fig. 3, clamping device 130 is connected with the first drive component 140, the first drive component 140 drives folder
Hold device 130 X motion in a first direction.Clamping device 130 includes the first fixture 131 being oppositely arranged and the second fixture 133, base
Seat 135.Pedestal 135 is arranged between the first connector 165 and the second connector 166, is fixedly connected with connecting plate 157.Pedestal
135 two ends are respectively fixedly connected with slide block 137, and the upper surface of base plate 111 is provided with and is matched with the slide block 137 at pedestal 135 two ends
Guide rail 139, slide block 137 band moving base 135 with connecting plate 157 in a first direction X motion.Pedestal 135 is away from the two of slide block 137
End is fixedly connected with the first fixture 131 and the second fixture 133 respectively.First fixture 131 includes the first company of connection that cooperates
Socket part 1311 and the first chuck 1313, the second fixture 133 includes cooperating the second connecting portion 1331 of connection and the second chuck
1333.First connecting portion 1311, second connecting portion 1331 and pedestal 135 bolt connection, in the present embodiment, first connecting portion
1311st, second connecting portion 1331 is cuboid, in other embodiments of the invention, first connecting portion 1311, second connecting portion
1331 can be prism, and the present invention does not limit to it.First chuck 1313, the second chuck 1333 are provided with the first groove 132,
First chuck 1313, the second chuck 1333 pass through the first groove 132 and first connecting portion 1311, second connecting portion 1331 clamping,
Fastened with first connecting portion 1311, second connecting portion 1331 by bolt again, realize being detachably connected, the first chuck 1313,
Two chucks 1333 slide relative to first connecting portion 1311, second connecting portion 1331 respectively in second direction Y, adjust the first chuck
1313rd, the distance between the second chuck 1333, second direction Y is mutually perpendicular to first direction X.
Refer to Fig. 4, the second drive component 121 that test device 120 includes being sequentially connected, detecting element 123, test unit
Part 125, the second drive component 121 includes the second driving element 127, retaining element 129, and the second driving element 127 is piezo stack
Heap, retaining element 129 is flexible hinge, and flexible hinge make use of elastomeric material micro-strain and its from the characteristic replied, and eliminates
Idle running in transmission process and mechanical friction, can obtain the displacement resolution of superelevation.
In the present embodiment, flexible hinge is cuboid, and the present invention does not limit to its shape.Flexible hinge has fixation
Portion 1291 and motion portion 1293, fixed part 1291 is bolted to connection side plate 113 end face in base 110, flexible hinge
Motion portion 1293 be fixedly connected with detecting element 123, testing element 125 successively.Motion portion 1293 is away from testing element 125
Side is provided with the second groove 1295, and the size of the second groove 1295 and the size of piezoelectric stack match, piezo stack
Heap is anchored in the second groove 1295, and X drives motion portion 1293 to move to piezoelectric stack in a first direction.Piezoelectric stack and motion portion
It is provided between 1293 with the symmetrical first through hole of flexible hinge central axis 1297, the shape to first through hole 1297 for the present invention
Shape does not limit, and for example, first through hole 1297 is circular or polygon.In the both sides of piezoelectric stack, it is provided with flexible hinge
The second symmetrical through hole 1299 of heart axis, the present invention does not limit to the shape of the second through hole 1299, for example, the second through hole
1299 is rectangle.Second through hole 1299 is connected with the second groove 1295.When piezoelectric stack is vibrated with default frequency, drive motion
X moves reciprocatingly in a first direction in portion 1293, first through hole 1297 and the second through hole 1299 play flexible loading effect so that
Flexible hinge, during flexible, will not produce excessive impact, and also act as the effect of energy storage.First through hole 1297 with
Second through hole 1299 is symmetric design, is present to ensure that motion portion 1293 uniform force, the X motion in the first direction of zero deflection ground.
In the present embodiment, within 15 μm, frequency can reach 1000Hz to the displacement range of piezoelectric stack, and flexible hinge is transported
The displacement range in dynamic portion 1293 is consistent with piezoelectric stack.Testing element 125 is pressure head, such as Fig. 5, and in the present embodiment, pressure head is
Single cone 1251, when interacting with tested sample, produce an active force, flexural fatigue test instrunment 100 operationally, quilt
Test specimens produce three-point bending.In other embodiments of the invention, pressure head can be bicone 1253, such as Fig. 6, and tested
When sample interacts, produce two active forces, operationally, tested sample produces four-point bending to flexural fatigue test instrunment 100；
Or four-point bending test can be carried out by replaceable pressure head to tested sample at 3 points.Detecting element 123 is sensor, sensor
Receive and transmit the active force of the tested style that testing element 125 is subject to.Piezoelectric stack, sensor are generally in the art setting
Standby, the present invention does not limit to its structure.
Adjust the distance between the first chuck 1313 and the second chuck 1333, tested sample is held on clamping device 130.Logical
Cross the driving of servomotor 141, adjust the distance between tested sample and pressure head, when tested sample is reduced with pressure head spacing, connects
After touch, continue to drive clamping device 130, tested sample is subject to the active force of pressure head and produces deformation.Produce after piezoelectric stack energising
Raw vibration, acts on flexible hinge, drives ram movement by flexible hinge, make pressure head in the first direction X less than 15 μm
In the range of move back and forth, pressure head acts on tested sample away from one end of flexible hinge, tested sample is carried out fatigue survey
Examination.
Embodiment 2
The present embodiment provides a kind of test system, including data processor, characterizes instrument, flexural fatigue test instrunment 100.
Data processor is connected with flexural fatigue test instrunment 100, and sensor receives the active force that pressure head is subject to, and transmits the data to
Data processor, data processor carries out data processing according to bending strength theory formula and deflection curve equation.
Bending strength theory formula：
Deflection curve equation：
Bending strength theory formula and deflection curve equation are mechanics of materials fundamental formular.
Characterize instrument to cooperate with flexural fatigue test instrunment 100, when flexural fatigue test instrunment 100 works, can
Using characterizing instrument, tested sample is carried out with Morphology analysis and performance characterization, characterize instrument such as ultramicroscope, metallographic and show
Micro mirror, spectrogrph, the present invention does not limit to it.
Represent that for simplifying non-mentioned position in the present embodiment refers to corresponding contents in embodiment 1.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of flexural fatigue test instrunment, for carrying out fatigue property test to tested sample it is characterised in that including bottom
Seat, test device, for clamping the first drive component that the clamping device of described tested sample is mated with described clamping device,
Described clamping device, described test device, described first drive component are individually fixed in described base；Described test device includes
The second drive component of being sequentially connected, detecting element, testing element, described first drive component drives described clamping device to make institute
State tested sample to move in a first direction, described second drive component drives described detecting element and described testing element described
First direction synchronously moves back and forth, and makes described testing element extrude described tested sample with default frequency and amplitude.
2. flexural fatigue test instrunment according to claim 1 is it is characterised in that described second drive component includes second
Driving element, retaining element, described retaining element is fixed on described base, and in described first direction towards described clamping device
Extend, described retaining element has the motion portion being connected with described detecting element, and described second driving element is arranged at described solid
Determine element and drive described motion portion to move back and forth in described first direction.
3. flexural fatigue test instrunment according to claim 2 is it is characterised in that described second driving element is piezo stack
Heap.
4. flexural fatigue test instrunment according to claim 2 is it is characterised in that described retaining element is flexible hinge.
5. the flexural fatigue test instrunment described in any one of Claims 1-4 is it is characterised in that described first drive component bag
Include the servomotor being individually fixed in described base and drive mechanism, described drive mechanism is connected with described base, described servo
Motor passes through described drive mechanism and drives described clamping device to move in described first direction.
6. flexural fatigue test instrunment according to claim 5 is it is characterised in that described drive mechanism includes cooperating
The first worm screw and the first worm gear, the second worm screw cooperating and the second worm gear, rotating shaft, leading screw and with described leading screw cooperation
Connecting plate, described first worm screw is connected and synchronous axial system with the output shaft of described servomotor, and joins with described first worm gear
Close rotate, described first worm gear drive be sheathed on described rotating shaft described second worm screw rotate, described second worm screw be sheathed on
Described second worm gear of described leading screw rotates, and makes described connecting plate promote described clamping device to transport in described first direction
Dynamic.
7. flexural fatigue test instrunment according to claim 6 is it is characterised in that described drive mechanism also includes first
Support structure and the second supporting construction；First supporting construction includes the first fixed part being oppositely arranged and being connected with described base respectively
With the second fixed part, the two ends of described rotating shaft rotate respectively and are arranged at described first fixed part and described second fixed part；Second
Supporting construction includes the first connector and the second connector being oppositely arranged and being connected with described base respectively, and the two of described leading screw
End rotates respectively and is arranged at described first connector and described second connector.
8. flexural fatigue test instrunment according to claim 6 is it is characterised in that described clamping device includes being oppositely arranged
The first fixture and the second fixture pedestal, described first fixture and described second fixture and the institute that are slidably connected with described base
State pedestal to be fixedly connected, described first fixture includes cooperating the first connecting portion of connection and the first chuck, described second folder
Tool includes the cooperate second connecting portion of connection and the second chuck, and the two ends of described tested sample are held in described the respectively
One chuck and described second chuck.
9. flexural fatigue test instrunment according to claim 8 is it is characterised in that described first chuck has and described
The vertical second direction in one direction, described first chuck slides in described second direction described first connecting portion relatively, and described the
Two chucks slide in the relatively described second connecting portion of described second direction.
10. a kind of test system is it is characterised in that including data processor, characterizing instrument, as any one of claim 1 to 9 institute
The flexural fatigue test instrunment stated, described data processor is connected with described detecting element data communication；Described sign instrument with
Described flexural fatigue test instrunment cooperating, when described tested sample is subject to described default frequency and amplitude extrudes, right
Described tested sample carries out performance characterization and pattern monitoring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611018436.9A CN106404571A (en) | 2016-11-18 | 2016-11-18 | Bending fatigue test apparatus and test system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611018436.9A CN106404571A (en) | 2016-11-18 | 2016-11-18 | Bending fatigue test apparatus and test system |
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Cited By (5)
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| CN110132755A (en) * | 2019-05-29 | 2019-08-16 | 新光机电(昆山)有限公司 | Resist bending electric wire test machine |
| CN110595913A (en) * | 2019-10-14 | 2019-12-20 | 桂林电子科技大学 | Device and method for measuring bending vibration stress of circuit board welding spot |
| CN111545836A (en) * | 2020-05-12 | 2020-08-18 | 山东理工大学 | Multi-frequency coupling cross-scale hierarchical micro-nano structure creation device |
| CN113049422A (en) * | 2021-02-10 | 2021-06-29 | 新沂市宏祥电子有限公司 | Wire bending device for data line bending performance test |
| CN114216792A (en) * | 2021-12-14 | 2022-03-22 | 青岛沃纳精工科技有限公司 | Bending test device for rod-shaped section bar |
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