CN107219133A - A kind of horizontal type test device and method of testing that material twisting property is measured under Electronic Speculum - Google Patents
A kind of horizontal type test device and method of testing that material twisting property is measured under Electronic Speculum Download PDFInfo
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- CN107219133A CN107219133A CN201710361801.4A CN201710361801A CN107219133A CN 107219133 A CN107219133 A CN 107219133A CN 201710361801 A CN201710361801 A CN 201710361801A CN 107219133 A CN107219133 A CN 107219133A
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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
- G01N3/26—Investigating twisting or coiling properties
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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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- 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
- G01N3/06—Special adaptations of indicating or recording means
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- 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
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Abstract
The invention provides a kind of horizontal type test device and measuring method that material twisting property is measured under Electronic Speculum, the horizontal type test device includes framework, the first clamping part, the second clamping part, control device and electron microscope；First clamping part is arranged on framework, including rotatably clamps the clamp tool of sample；Second clamping part is arranged on framework and relative with the first clamping part horizontal interval, including electromagnetic actuator device, the dynamic fixture for clamping sample, and angle measurement unit；Control device is used to set test method and control experimentation；Electron microscope is used for change of the observation sample in experimentation in the original location.The present invention can solve the additional force moment problem that the laterally disposed rear rotatable parts mass eccentricity of sample is brought, and can laterally work, so that electron microscope realizes home position observation.Sample is allowd to realize wide-angle multi-turn loading experiment by rotatable two bare terminal ends.
Description
Technical field
The present invention relates to material property fields of measurement, more particularly to it is a kind of it is being used under ESEM (SEM), be directed to
Minute yardstick material reverse the horizontal type test device and its method of testing of Mechanics Performance Testing.
Background technology
The torsion mechanics performance testing technology of minute yardstick material is extremely rare in the world at present, main reason is that 10-3Nm
Following slight torque measurement is extremely difficult.
The existing measurement apparatus for this respect, is usually to be tested under vertical state, this posture will influence SEM
Light path, and the leakage field of the magnet coil of drive device can also influence SEM to be imaged in measurement apparatus, therefore existing measurement dress
Put with SEM to coordinate and torsion test in situ is carried out to materials such as filaments.
In addition, in amorphous alloy wire, nanocrystalline fiber art, it is also desirable to carry out in-situ observation using torsion test, with
Obtain the deformation information of more extremely preciousnesses.
The content of the invention
The problem of to solve that torsion test in situ can not be carried out to minute yardstick material in the prior art, the present invention provides a kind of
It is being used under ESEM (SEM), for minute yardstick material carry out reverse Mechanics Performance Testing horizontal type test device and its
Method of testing.
Especially, the present invention provides a kind of horizontal type test device that material twisting property is measured under Electronic Speculum, including：
Framework；
First clamping part, is installed on said frame, including mounting seat is tried with clamping in mounting seat is rotatably installed in
The clamp tool of sample；
Second clamping part, installs on said frame and relative with the first clamping part horizontal interval, including electromagnetism drives
Dynamic device, and have the dynamic fixture that opposite side clamps sample installed in electromagnetic actuator device and the clamp, and installed in electricity
The angle measurement unit of the magnetic drive unit other end；
Control device, for setting test method and control experimentation；
Electron microscope, for observe in the original location positioned at the clamp tool the dynamic fixture between sample in experimentation
In change.
In an embodiment of the invention, the control clamp tool is installed in the mounting seat to carry out with mount point
The electric rotating machine of rotation.
In an embodiment of the invention, the clamp tool includes the bottom being connected with the drive shaft of the electric rotating machine
Plate, and the flexible clamping frame being fixed on bottom plate；The flexible clamping frame includes the steel wire post positioned at floor length direction two ends,
The rectangular wire framework fixed respectively with the steel wire post, the unlocked end of two rectangular wire frameworks is in contact.
In an embodiment of the invention, the dynamic fixture includes the transverse splint and vertical clamping plate of cross, in horizontal stroke
The two ends of clamping plate and vertical clamping plate are respectively arranged with grip slipper, make sample vertical after transverse splint clamping sample is provided with transverse splint
In the limiting plate of transverse splint.
In an embodiment of the invention, the tune at adjustment sample holder center is provided with the middle part of the transverse splint
Knothole.
In an embodiment of the invention, the grip slipper includes two holding pieces being oppositely arranged, described in two
One side of holding piece is fixed on the vertical clamping plate or transverse splint, and another side is bonded to each other under elasticity.
In an embodiment of the invention, the electromagnetic actuator device includes fixed frame, and is fixedly mounted on institute
The magnetic pole in fixed frame is stated, hot-wire coil is rotatably mounted between the two ends of the magnetic pole and the fixed frame,
The hot-wire coil is connected by axostylus axostyle with the fixed frame, is set in the fixed frame close to one end of the dynamic fixture
There is the central shaft framework extended to outside the framework, the vertical Boards wall of the dynamic fixture is on the central shaft framework.
In an embodiment of the invention, equalising torque frame, the torque are also equipped with the central shaft framework
Balancing stand includes cross torsion bar, and the counterweight nut being threadedly screwed in respectively on each termination of the torsion bar,
The fixed center of the torsion bar is corresponding with the pivot of central shaft framework.
In an embodiment of the invention, the angle measurement unit is non-contact angle sensor, including is pacified
Mounted in the dynamic model block of the electromagnetic actuator device and dynamic fixture opposite side, and on framework with dynamic model block relative position
Cover half block, cover half block is connected with the control device.
One embodiment of the present invention provides a kind of method of testings using foregoing horizontal type measurement apparatus of, including following step
Suddenly：
Step 100, the test piece at sample two ends is clamped in clamp tool respectively and moved on fixture, and it is flat to carry out centering and torque
Weighing apparatus operation；
Step 200, torsion test is carried out to sample by control module control brake clamp and clamp tool, passes through electron microscopic
Sem observation experimentation simultaneously records experimental data；
Step 300, according to experimental data, the relation of sample Moment and corner is drawn by Parameter Switch；
Step 400, according to foregoing torque and the relation of corner, by specific mechanical model, you can draw current sample phase
The mechanical quantity answered.
The present invention can solve the additional force moment problem that the laterally disposed rear rotatable parts mass eccentricity of sample is brought, can be with
Laterally work, so that electron microscope realizes home position observation.In addition, being integrated by centering, equalising torque, holding function
Moved end structure, while each functional requirement is ensured, substantially reduces the volume of whole device, makes whole experiment process can be in electricity
Sub- microscope works in limited space.Sample is allowd to realize that wide-angle multi-turn is loaded by rotatable two bare terminal ends
Experiment.
The method of testing of the present invention can overcome original electromagnetic actuator device geometrical constraint by cleverly experimental method step
Limitation, realize wide-angle multi-turn loading experiment, meet wider array of experiment demand.
Brief description of the drawings
Fig. 1 is the structural representation of the horizontal type test device of one embodiment of the present invention；
Fig. 2 is the clamp lamps structure schematic diagram of one embodiment of the present invention；
Fig. 3 is the sample structure schematic diagram of one embodiment of the present invention；
Fig. 4 is the dynamic clamp structure schematic diagram of one embodiment of the present invention；
Fig. 5 is the dynamic fixture transverse splint structural representation of one embodiment of the present invention；
Fig. 6 is the electromagnetic actuator device structural representation of one embodiment of the present invention；
Fig. 7 is the method for testing schematic flow sheet of one embodiment of the present invention.
Embodiment
It is used to install various as shown in figure 1, the horizontal type test device of one embodiment of the invention includes one in general manner
The framework 10 of equipment, clamps first clamping part 30 and the second clamping part 40 of the one end of sample 50 respectively on framework 10, control
The control device of experimentation processed and the electron microscope (not shown) of observation experiment process.
First clamping part 30 is arranged on one end of framework 10, including the mounting seat 31 fixed with framework 10, and rotatably
Have 32 in mounting seat 31 with the clamp for clamping sample 50.
Second clamping part 40 is arranged on the other end of framework 10 and relative with the horizontal interval of the first clamping part 30, including provides
The electromagnetic actuator device 20 of the torsion power of sample 50, has 32 relative one end in electromagnetic actuator device 20 and clamp and is provided with clamping
The dynamic fixture 41 of sample 50, the angle that the anglec of rotation of dynamic fixture 41 of measurement is provided with the other end of electromagnetic actuator device 20 is surveyed
Measure device 60.
Control device is used to set testing program and control experimentation；Including providing power for operation, control experimental procedure
And gathered data and control electron microscope.The control device can include the calculating for possessing input and output hardware equipment function
Machine, power supply unit, input-output equipment；Computer therein can also be replaced by industrial computer, single-chip microcomputer etc., by compiling in advance
The software of system realizes the establishment and control of different experiments requirement.Power supply unit can be treated civil power, battery etc..It is defeated
Enter output equipment can control experiment in during torsion loading and data acquisition, such as sensor.
In present embodiment, the first clamping part 30 and the level of the second clamping part 40 are relative, and one end of sample 50 is clamped respectively,
Sample 50 is under horizontality, then operated by centering so that sample 50 can be filled with clamp tool 32 and electromagnetic drive
20 centre rotational axis alignment is put, then carries out equalising torque operation, then sample 50 is reversed by control device, recorded
Each corner and driving electric signal of lower experimentation, are required, you can obtain the result of correlation further according to corresponding calculate.In examination
In the twist process of sample 50, it is motionless in itself in the position of own axes (centre rotational axis during experiment), can pass through electronics
Microscope observes change of the sample 50 in twist process having positioned at clamp between 32 and dynamic fixture 41 in the original location.
Present embodiment can solve the extra torque that the laterally disposed rear rotatable parts mass eccentricity of sample 50 brought and ask
Topic, can laterally work, so that electron microscope realizes home position observation.In addition, passing through centering, equalising torque, holding function
The moved end structure being integrated, while each functional requirement is ensured, substantially reduces the volume of whole device, makes entirely to test
Journey can work in the limited space of electron microscope.Sample is allowd to realize wide-angle by rotatable two bare terminal ends
Multi-turn loading experiment.
As shown in Fig. 2 in an embodiment of the invention, on the basis of previous embodiment, mounting seat 31 is vertical
Ground is fixed on framework 10, and the electric rotating machine that control clamp tool 32 is rotated against with mount point is provided with mounting seat 31
(not shown), clamp tool 32 be may be mounted in the drive shaft of electric rotating machine, and the working condition of electric rotating machine is filled by control
Put control.By electric rotating machine clamp can be controlled to have 32 to be revolved by the direction and angle specified automatically after clamping sample 50
Turn.
Further, in an embodiment of the invention, clamp tool 32 can include the drive shaft with electric rotating machine
The bottom plate 321 of connection, and the flexible clamping frame 33 being fixed on bottom plate 321；Flexible clamping frame 33 includes two rectangular wire frameworks
331, two angles (fixing end) on the one side of rectangular wire framework 331 consolidate with being fixed on the steel wire post 332 at the two ends of bottom plate 331, and two
Symmetrically, the plane of rectangular wire framework 331 is hanging parallel to bottom plate 321, two rectangular wires for the position of rectangular wire framework 331
Relative one end of framework 331 (free end) laminating contact.
Sample 50 is inserted in the space in the middle of the free end of two rectangular wire framework 331, by rectangular wire framework 331 freely
Frictional force produced by holding extruding is clamped on clamp tool 32.Calculated by the mechanics of materials, the free end of rectangular wire framework 331 exists
The rigidity in central rotation axis direction can provide torque and chucking power compared to the rigidity very little perpendicular to this axis direction
When, it is ensured that the power very little of central rotation direction of principal axis, need whole device to vert in experiment and cause rotary part to have central rotation
When direction of principal axis relative displacement, sample 50 will not be because of axial movement by very big responsive to axial force, and can keep
Pivot position axis is constant.
Further, in the case where sample 50 can be kept stable, the rectangular wire framework 331 can be set to different
Flat shape, as long as meeting rigidity requirement.
As shown in Fig. 3,4,5, in an embodiment of the invention, the dynamic fixture 41 includes the transverse splint of cross
411 and vertical clamping plate 412, the limiting plate 414 that and cross vertical with transverse splint 411 intersects, limiting plate are installed on transverse splint 411
414 center sets the recessed stopper slot 415 in oriented transverse splint direction, and the two ends of limiting plate 414 are clamped in vertical folder
On the grip slipper of plate 412, grip slipper 413 is provided at both ends with transverse splint 411, for clamping test piece 51.Vertical clamping plate 412 and electromagnetism
Drive device 20 is connected.
In the present embodiment, for convenience of clamping sample 50 and keeping stabilization of the sample 50 in twist process, in sample
50 two ends are respectively fixedly connected with a test piece 51, and test piece 51 is parallel with sample 50, and sample 50 is vertically fixed on test piece 51 1
The middle part of individual side, the test piece 51 on both sides is located in same level, and total is I-shaped.
Transverse splint 411 and vertical clamping plate 412 are vertical with test piece 51, and test piece 51 is clamped by the grip slipper 413 on transverse splint 411,
The middle part of test piece 51 is caught in the stopper slot 415 on limiting plate 414, and stopper slot 415 can make the test piece 51 of insertion keep vertical
In the state of transverse splint 411 and vertical clamping plate 412.
Using criss-cross structure, transverse splint 411 can be enable relative to the direction that vertical clamping plate 412 is adjusted, and test piece 51
The direction that can be adjusted relative to transverse splint 411 is mutually perpendicular to, it is thereby achieved that test piece 51 is perpendicular to central rotation axial plane
The adjustment of interior optional position, realizes the axial direction of sample 50 and the axial centering of central rotation.
Further, for convenience of to the axial centering of the axial direction of sample 50 and central rotation.In one embodiment of the present invention,
The adjustment hole 416 for observing and adjusting Clamping Center can be set at the middle part of transverse splint 411, and adjustment hole 416 is one through horizontal stroke
The through hole of clamping plate 411, its shape can be circular or square, pass through symmetrical adjustment hole 416, it can be seen that be crushed on lower section
Vertical clamping plate 412, so as to make 50 pairs of sample according to the respective markers or centre point demarcate in advance on indulge clamping plate 412
In.If the position skew of test piece 51, position of the upper limit plate 414 of clamping plate 412 relative to vertical clamping plate 412 can be indulged by adjustment
Put, and test piece 51 is relative to the position of transverse splint 411, by appropriate movement, the center mark for showing adjustment hole 416
Note point and the centering of sample 50 so that sample axis is consistent with centre rotational axis.
In an embodiment of the invention, specific grip slipper 413 can include two holding pieces being oppositely arranged
417, a side of two holding pieces 417 is fixed in corresponding structure, and another side is bonded to each other under elasticity.In clamping examination
During piece 51, two holding pieces 417 can be broken into two with one's hands, then the insertion of test piece 51 is entered.Holding piece 417 can possess certain depth
Degree, makes test piece 51 have certain amount of movement in the axial direction, thinks that the sample 50 of different length leaves regulated quantity.
As shown in fig. 6, in an embodiment of the invention, electromagnetic actuator device 20 includes a rectangle in general manner
Fixed frame 21, be connected with the rotation headstock 24 for supporting hot-wire coil 23 in 21 two relative sides of fixed frame,
It is fixed with the magnetic pole 22 of cylinder, the space between rotating seat first 24 and magnetic pole 22 and rotationally pacifies on fixed frame 21
Hot-wire coil 23 equipped with rectangle, two stub shafts 231 (i.e. centre rotational axis) that the both sides of hot-wire coil 23 consolidation is extended, axostylus axostyle
231 are stuck in the swivelling chute that rotating seat first 24 is provided.Magnetic pole 22 is fixedly connected with fixed frame 21, and hot-wire coil 23 is being powered
After can be rotated with axostylus axostyle 231 for rotary shaft, but slewing area be limited by fixed frame 21.
The U-shaped central shaft framework extended to outside fixed frame 21 is provided with close to one end of dynamic fixture 41 in hot-wire coil 23
25, the vertical clamping plate 412 of dynamic fixture 41 is fixed on central shaft framework 25.Vertical clamping plate 412 can be with the rotation of hot-wire coil 23
Synchronous axial system.Further, central shaft framework 25 can also directly be adapted as the vertical clamping plate 412 in dynamic fixture 41, can directly by
On the centrally disposed axle framework 25 of grip slipper, to reduce part.
In one embodiment, corresponding U-shaped central shaft framework can be set in the other end of hot-wire coil 23, can be with
Play balanced action, at the same can also as some parts installation pedestal.
In an embodiment of the invention, can be with mounting torque on the central shaft framework 25 of the dynamic side of fixture 41
Balancing stand 26, equalising torque frame 26 includes cross torsion bar 261, and to be threadedly screwed in torsion bar 261 respectively each
Counterweight nut 262 on bar.Torsion bar 261 is fixed on the central shaft framework 25 that hot-wire coil 23 extends, equalising torque frame
The mounting surface of the vertical clamping plate 412 of 26 installation site and dynamic fixture 41 is on the contrary, the Center-to-Center axle of the torsion bar 261 after fixed
The pivot correspondence of framework 25.After sample 50 are installed, rotatable portion (hot-wire coil 23, central shaft framework 25, torque
Balancing stand 26, dynamic fixture 41 and sample 50 are integral) center of gravity when having bias relative to centre rotational axis, phase can be passed through
Answer position of the counterweight nut 262 in direction on torsion bar 261 to adjust the position of whole rotary part barycenter, realize axial force
Square is balanced.Specific balance method is as follows：Clamp tool 32 and dynamic fixture 41 are installed after sample 50, using centre rotational axis as rotation
Axle, slowly verted whole instrument, if during verting, rotatable portion and the relative angular position of magnet 22 are remained stationary as,
Then torque has been carried out balance；If direction and the direction for the whole instrument that slowly verts that rotatable portion rotates relative to magnet 22
Identical, then the counterweight nut 262 of counterweight nut 262 laterally or by the top adjusted on the lower moves inward；If rotatable
Direction and the in opposite direction of whole instrument of slowly verting that part rotates relative to magnet, then adjust counterweight nut on the lower
262 counterweight nut 262 to inner side or by the top is moved laterally, until during the whole instrument that slowly verts, center
Axle framework 25 is remained stationary as with the relative angular position of magnet 22, that is, completes centering.
In an embodiment of invention, specific angle measurement unit 60 can be non-contact angle sensor,
It can include being arranged on electromagnetic actuator device 20 and the dynamic model block of the dynamic opposite other end of fixture 41, and with moving on framework 10
The cover half block of module relative position, cover half block is connected with control device.After hot-wire coil 23, which is powered, to be rotated, install thereon
Dynamic model block is to produce synchronous axial system, and the cover half block on framework 10 utilizes rotational angle of the Hall effect according to dynamic model block
Current corner is obtained, and corresponding measurement data is sent to control device.
There is provided a kind of measuring method that sample measurement is realized using foregoing fixture in an embodiment of the invention.
Step 100, the test piece at sample two ends is clamped in clamp tool respectively and moved on fixture, and it is flat to carry out centering and torque
Weighing apparatus operation；
Centering operation is that the test piece at I-shaped sample two is clamped on dynamic fixture and clamp tool respectively, then adjusts examination
The position of sample radially, until being alignd with the rotary middle point demarcated in advance, that is, completes centering.
Equalising torque operation be in sample pair after, using centre rotational axis as rotary shaft, slowly vert whole instrument, if
During verting, the relative angular position of rotatable portion and magnet is remained stationary as, then torque has been carried out balance, if occurring phase
To rotating, then need to finely tune counterweight nut location, method for trimming：If the direction that rotatable portion is rotated relative to magnet is with slowly inclining
The direction for turning whole instrument is identical, then adjusts the inside sidesway of counterweight nut of counterweight nut laterally or by the top on the lower
It is dynamic；If rotatable portion is adjusted on the lower relative to the magnet direction rotated and the in opposite direction of whole instrument of slowly verting
Counterweight nut counterweight nut to inner side or by the top move laterally, until during the whole instrument that slowly verts,
Central shaft framework is remained stationary as with magnet relative angular position, that is, completes centering.
Step 200, torsion test is carried out to sample by control module control brake clamp and clamp tool, passes through electron microscopic
Sem observation experimentation simultaneously records experimental data；
Control module therein can be computer, and torsion test processing procedure is as follows：
1. electric current is passed to electromagnetic actuator device first so that hot-wire coil turns clockwise, record current (I), angle
The corner (θ) and bottom plate of sensor are mounted opposite the corner of seatData；
2. continue to pass to electric current so that corner (θ) is more than position limit θmaxWhen, keep size of current constant, use instead
Electric rotating machine driving clamp tool rotation carries out torsion test so that clamp has rotate counterclockwise, record current (I), angle sensor
The corner (θ) and bottom plate of device are mounted opposite the corner of seatData；
When electric rotating machine is reversed and loaded so that the corner (θ) of angular transducer is less than position limit θminWhen, i.e.,
This step can be completed.At this moment there has been certain relative torsional angle at sample two ends, and this torsion for having certain angle to sample adds
Carry, if experiment also needs to continue to apply sample bigger torsion loading, repeatedly abovementioned steps 1,2, continue to increase sample two ends
Relative torsional angle.Until reaching the torsion loading needed for experiment.Experiment terminates.
θmaxWith θminLimit default by the geometry of electromagnetic actuator device in advance.Coil is switched under the constraint of fixed frame
It is just minimum and maximum accessibility angle position in a clockwise direction, by the position of angular transducer and measurement angle-determining.
Step 300, according to experimental data, the relation of sample Moment and corner is drawn by Parameter Switch；
Recorded according to abovementioned steps a series of experiments data (I, θ,), draw sample Moment according to Parameter Switch
(M) with the relation of corner (θ)：
M=aI-b θ
Wherein, a is scale parameter of the electric current (I) with output torque (M) for the electromagnetic actuator device demarcated in advance, and b is thing
The rigidity for the hot-wire coil contact conductor first demarcated.
Step 400, according to foregoing torque and the relation of corner, by specific mechanical model, you can draw current sample phase
The mechanical quantity answered.
For example：
The detrusion of specimen surface：
The shear stress of specimen surface：
Modulus of shearing：
Wherein, D is specimen finish, and L is the relative distance (effective length of torsion) of two sections of sample.
This method can overcome the idle of original electromagnetic actuator device geometrical constraint by cleverly experimental method step, real
Existing wide-angle multi-turn loading experiment, meets wider array of experiment demand.
So far, although those skilled in the art will appreciate that detailed herein have shown and described multiple showing for the present invention
Example property embodiment, still, still can be direct according to present disclosure without departing from the spirit and scope of the present invention
It is determined that or deriving many other variations or modifications for meeting the principle of the invention.Therefore, the scope of the present invention is understood that and recognized
It is set to and covers other all these variations or modifications.
Claims (10)
1. a kind of horizontal type test device that material twisting property is measured under Electronic Speculum, it is characterised in that including：
Framework；
First clamping part, is installed on said frame, including mounting seat and is rotatably installed in mounting seat and is clamped sample
Clamp has；
Second clamping part, installs on said frame and relative with the first clamping part horizontal interval, including electromagnetic drive dress
Put, and have the dynamic fixture that opposite side clamps sample installed in electromagnetic actuator device and the clamp, and driven installed in electromagnetism
The angle measurement unit of the dynamic device other end；
Control device, for setting test method and control experimentation；
Electron microscope, for observe in the original location positioned at the clamp tool the dynamic fixture between sample in experimentation
Change.
2. horizontal type test device according to claim 1, it is characterised in that
The electric rotating machine for controlling the clamp tool to be rotated with mount point is installed in the mounting seat.
3. horizontal type test device according to claim 2, it is characterised in that
The clamp tool includes the bottom plate being connected with the drive shaft of the electric rotating machine, and the flexible clamping being fixed on bottom plate
Frame；The flexible clamping frame includes the steel wire post positioned at floor length direction two ends, and the square fixed respectively with the steel wire post
Shape steel wire frame, the unlocked end of two rectangular wire frameworks is in contact.
4. horizontal type test device according to claim 1, it is characterised in that
The dynamic fixture includes the transverse splint and vertical clamping plate of cross, and folder is respectively arranged with the two ends of transverse splint and vertical clamping plate
Seat is held, makes sample perpendicular to the limiting plate of transverse splint after transverse splint clamping sample is installed on transverse splint.
5. horizontal type test device according to claim 4, it is characterised in that
The adjustment hole at adjustment sample holder center is provided with the middle part of the transverse splint.
6. horizontal type test device according to claim 4, it is characterised in that
The grip slipper includes two holding pieces being oppositely arranged, and a side of two holding pieces is fixed on the vertical clamping plate
Or on transverse splint, another side is bonded to each other under elasticity.
7. horizontal type test device according to claim 1, it is characterised in that
The electromagnetic actuator device includes fixed frame, and the magnetic pole being fixedly mounted in the fixed frame, in the magnetic pole
Two ends and the fixed frame between be rotatably mounted with hot-wire coil, the hot-wire coil passes through axostylus axostyle and the fixation
Framework is connected, and is provided with the central shaft frame extended to outside the framework close to one end of the dynamic fixture in the fixed frame
Frame, the vertical Boards wall of the dynamic fixture is on the central shaft framework.
8. horizontal type test device according to claim 7, it is characterised in that
Equalising torque frame is also equipped with the central shaft framework, the equalising torque frame includes cross torsion bar, and divides
It is not screwed in the counterweight nut on each termination of the torsion bar, the fixed center of the torsion bar and the center threadedly
The center correspondence of axle framework.
9. horizontal type test device according to claim 1, it is characterised in that
The angle measurement unit is non-contact angle sensor, including installed in the electromagnetic actuator device and dynamic fixture phase
To the dynamic model block of one end, and the cover half block on framework with dynamic model block relative position, cover half block and the control device
Connection.
10. the method for testing of horizontal type measurement apparatus described in a kind of right to use 1, it is characterised in that comprise the following steps：
Step 100, the test piece at sample two ends is clamped in clamp tool respectively and moved on fixture, and carry out centering and equalising torque behaviour
Make；
Step 200, torsion test is carried out to sample by control module control brake clamp and clamp tool, seen by electron microscope
Examine experimentation and record experimental data；
Step 300, according to experimental data, the relation of sample Moment and corner is drawn by Parameter Switch；
Step 400, according to foregoing torque and the relation of corner, by specific mechanical model, you can show that current sample is corresponding
Mechanical quantity.
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| CN201710361801.4A CN107219133B (en) | 2017-05-22 | 2017-05-22 | A kind of horizontal type test device and test method measuring material twisting property under Electronic Speculum |
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| CN201710361801.4A CN107219133B (en) | 2017-05-22 | 2017-05-22 | A kind of horizontal type test device and test method measuring material twisting property under Electronic Speculum |
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| CN107219133B CN107219133B (en) | 2019-09-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116296885A (en) * | 2023-05-25 | 2023-06-23 | 太原理工大学 | Four-bar linkage bending and twisting experimental device |
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| CN102788727A (en) * | 2012-08-31 | 2012-11-21 | 中国科学院力学研究所 | Multipurpose in-situ microscale mechanical property tester under scanning electron microscope |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116296885A (en) * | 2023-05-25 | 2023-06-23 | 太原理工大学 | Four-bar linkage bending and twisting experimental device |
| CN116296885B (en) * | 2023-05-25 | 2023-08-29 | 太原理工大学 | Four-bar linkage bending and twisting experimental device |
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| CN107219133B (en) | 2019-09-20 |
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