CN107167388A - A kind of micro- torque mechanical testing machine - Google Patents
A kind of micro- torque mechanical testing machine Download PDFInfo
- Publication number
- CN107167388A CN107167388A CN201710394723.8A CN201710394723A CN107167388A CN 107167388 A CN107167388 A CN 107167388A CN 201710394723 A CN201710394723 A CN 201710394723A CN 107167388 A CN107167388 A CN 107167388A
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- magnetic
- plate
- coil
- angular transducer
- frame cover
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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
-
- 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
- G01N2203/0021—Torsional
-
- 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
-
- 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
- G01N2203/0075—Strain-stress relations or elastic constants
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The invention discloses a kind of micro- torque mechanical testing machine, including magnetic support framework soleplate, inner magnet, loading axis, magnetic-type frame cover plate, dynamic fixture, support feet is installed below magnetic support framework soleplate, magnetic-type frame cover plate both sides are provided with framework lateral plate, framework lateral plate is internally provided with outer magnet, coil is nested with the inside of outer magnet, inner magnet is nested with the inside of coil, angular transducer movable polar plate is installed above outer magnet, angular transducer movable polar plate both sides are fixed with angular transducer fixed plate, angular transducer fixed plate is connected to below magnetic-type frame cover plate, loading axis bottom is connected with outer magnet, angular transducer movable polar plate is provided with the middle part of loading axis, clamp tool is installed above dynamic fixture, dynamic fixture and clamp tool are connected with sample to middle part, clamp tool top is connected with cantilever beam, cantilever beam side is fixed with motorized precision translation stage, motorized precision translation stage side is provided with column and is fixed on above magnetic-type frame cover plate, the invention resolution is high, measurement is accurate.
Description
Technical field
The present invention relates to micro- torque mechanical instrument field, specially a kind of micro- torque mechanical testing machine.
Background technology
Torsion Mechanics Performance Testing is carried out to material at present, it is general to be carried out using torsion Material Testing Machine, according to matching
Torque sensor is different, and this kind of testing machine moment of torsion range can meet engineering circles and macro-scale is tried from 100Nm to 103Nm
Sample reverses the demand of test, but is due to that tradition torsion Material Testing Machine measures moment of torsion using strain-type torque sensor, that is, leads to
The deformation of overstrain piece measurement flexible member carrys out gauged torque, it is, in principle, that the more difficult continuation of resolving power are improved, at present in the world
Minimum commercialization torsion testing machine can only also meet more than 10-1Nm torsion test need, with material micro-/ nano technology
Development and microelectromechanical systems MEMS popularization and application, individual filament, microelectronics machine to 100 μm~102 μm of diameter
The torsion testing requirement of tool system MEMS torsion mirrors etc. becomes particularly urgent, and traditional torsion testing machine moment of torsion resolving power is difficult to full
Foot, it is necessary to the torsion test of minute yardstick sample is realized using new principle.
The content of the invention
It is an object of the invention to provide a kind of micro- torque mechanical testing machine, solved to propose in above-mentioned background technology asks
Topic：
To achieve the above object, the present invention provides following technical scheme：A kind of micro- torque mechanical testing machine, including magnetic support frame ground
Support feet, magnetic-type housing cap are installed below plate, inner magnet, loading axis, magnetic-type frame cover plate, dynamic fixture, magnetic support framework soleplate
Plate both sides are provided with framework lateral plate, and framework lateral plate is arranged on magnetic support framework soleplate, and framework lateral plate is internally provided with outer magnet,
It is nested with the inside of outer magnet on the inside of coil, coil and is nested with inner magnet, angular transducer movable polar plate is installed above outer magnet,
Angular transducer movable polar plate both sides are fixed with angular transducer fixed plate, and angular transducer fixed plate is arranged on magnetic-type housing cap
Below plate, loading axis bottom is connected with the middle part of outer magnet, loading axis and is provided with angular transducer movable polar plate, moves and pacifies above fixture
Equipped with clamp tool, dynamic fixture and clamp tool are connected with sample to middle part, and clamp tool top is connected with cantilever beam, and cantilever beam side is consolidated
Surely there is motorized precision translation stage, motorized precision translation stage side is provided with column and is fixed on above magnetic-type frame cover plate.
It is preferred that, the support feet is the high support feet of regulation adjusting height, and the motorized precision translation stage is height up and down
Translation stage, be set to height-adjustable support feet, base position can be made in horizontality, it is to avoid the shadow of extraneous unfavorable factor
Ring so that measurement is accurate, be movable to above and below motorized precision translation stage in the sample of test different length so that simple operation, effect
Rate is higher.
It is preferred that, the magnetic support framework soleplate and the magnetic-type frame cover plate are the rack construction with weak magnetic, and
Through hole is provided with the middle part of the magnetic-type frame cover plate, the framework lateral plate is triangular structure, and top is provided with small through hole, it is main
Frame frame uses magnetic levitation system, eliminates the adverse effect of the disturbing factors such as frictional resistance moment, improves measurement accuracy, meets micro- torsion
Through hole in the middle part of the alignment requirements of square sensor, the magnetic-type frame cover plate extends through flexible connection for the loading axis, and
The framework lateral plate of triangular structure causes main frame structure more stable, and top small through hole passes through for the sample.
It is preferred that, the loading axis top is connected with the middle part of the dynamic fixture, the loading axis and is flexibly connected
Magnetic-type frame cover plate is stated, the loading axis bottom is connected with the angular transducer movable polar plate and the outer magnet, passed through
Above and below logical, flexible rotating so that moment of torsion sensitivity coefficient increases.
It is preferred that, the coil is nested in the inner magnet periphery, and the outer magnet is nested in the outside of the coil, institute
State outer magnet, coil and the inner magnet three coaxial, between the outer magnet and the coil gap coordinate, the coil and
Gap coordinates between the inner magnet, and the coil, which encloses, to be rotated about its center axis and top is provided with the loading axis, this set electricity
The magnetic of Magnetic driving mechanism is ferromagnetism, can form the magnetic field of an approaches uniformity.
Compared with prior art, the beneficial effects of the invention are as follows：
1st, it is driven and application torque metering by the use electromagnetism load mode of setting so that the moment of torsion resolving power of testing machine is able to
Increase substantially, below 10-3Nm slight torque test needs can be met, this is that current conventional material testing machine can not be real
Existing, the testing machine can be directly tested minute yardstick sample by torsional mode, and true simulation sample is in shearing stress shape
Mechanics operating mode under state, can not only provide effective detection means, to basic research field for micro-nano field of engineering technology
It is significant,
2nd, it is arranged on by the clamp tool of setting on main machine frame, dynamic fixture is arranged on electromagnetic actuator device, and can be with electromagnetism
Drive device rotates, and sensing device is used to test the angle that electromagnetic actuator device is rotated, and fast accurately draws data, automates
Degree is high, by the magnetic levitation system of setting, eliminates the adverse effect of the disturbing factors such as frictional resistance moment, with it is simple in construction,
Precision height and the good characteristic of stability, preferably meet the alignment requirements of micro- torque sensor.
Brief description of the drawings
Fig. 1 is overall structure diagram of the present invention；
Fig. 2 is base stand bar structure schematic diagram of the present invention.
In figure：1- magnetic support framework soleplates；2- inner magnets；3- loading axis；4- angular transducer fixed plates；5- magnetic-type housing caps
Plate；6- columns；7- motorized precision translation stages；8- cantilever beams；9- clamps have；10- samples；11- moves fixture；The activity of 12- angular transducers
Pole plate；13- coils；14- outer magnets；15- framework lateral plates；16- support feets.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1-2 is referred to, the present invention provides a kind of technical scheme：A kind of micro- torque mechanical testing machine, including magnetic support frame
Bottom plate 1, inner magnet 2, loading axis 3, magnetic-type frame cover plate 5, dynamic fixture 11, the lower section of magnetic support framework soleplate 1 are provided with support feet 16,
The both sides of magnetic-type frame cover plate 5 are provided with framework lateral plate 15, and framework lateral plate 15 is arranged on magnetic support framework soleplate 1, framework lateral plate
15 are internally provided with outer magnet 14, and the inner side of outer magnet 14 is nested with coil 13, and the inner side of coil 13 is nested with inner magnet 2, outer magnet
14 tops are provided with angular transducer movable polar plate 12, and the both sides of angular transducer movable polar plate 12 are fixed with angular transducer and determine pole
Plate 4, angular transducer fixed plate 4 is arranged on the lower section of magnetic-type frame cover plate 5, and the bottom of loading axis 3 is connected with outer magnet 14, loading axis
3 middle parts are provided with angular transducer movable polar plate 12, and the dynamic top of fixture 11 is provided with clamp tool 9, move fixture 11 and clamp has 9 pairs
Middle part is connected with sample 10, and the top of clamp tool 9 is connected with cantilever beam 8, and the side of cantilever beam 8 is fixed with motorized precision translation stage 7, electronic flat
The side of moving stage 7 is provided with column 6 and is fixed on the top of magnetic-type frame cover plate 5.
Support feet 16 is the support feet of regulation height, and motorized precision translation stage 7 is the translation stage of height up and down, and being set to can
The support feet of height is adjusted, base position can be made in horizontality, it is to avoid the influence of extraneous unfavorable factor so that measurement is accurate,
It is movable to above and below motorized precision translation stage in the sample of test different length so that simple operation, more efficient, magnetic support frame ground
Plate 1 and magnetic-type frame cover plate 5 are the rack construction with weak magnetic, and the middle part of magnetic-type frame cover plate 5 is provided with through hole, frame
Side plate 15 is triangular structure, and top is provided with small through hole, and mainframe frame uses magnetic levitation system, eliminates frictional resistance moment etc.
The adverse effect of disturbing factor, improves measurement accuracy, meets the alignment requirements of micro- torque sensor, the middle part of magnetic-type frame cover plate 5
Through hole extend through flexible connection for loading axis 3, and the framework lateral plate 15 of triangular structure make it that main frame structure is more stable,
Top small through hole passes through for sample 10, and the top of loading axis 3 is connected with dynamic fixture 11, and the middle part of loading axis 3 is connected with magnetic
Open frame cover plate 5, the bottom of loading axis 3 is connected with above and below angular transducer movable polar plate 12 and outer magnet 14, insertion, flexibly
Rotate so that moment of torsion sensitivity coefficient increases, coil 13 is nested in the periphery of inner magnet 2, outer magnet 14 is nested in the outside of coil 13,
Outer magnet 14, coil 13 and the three of inner magnet 2 are coaxial, and outer magnet 14 and the gap of coil 13 coordinate, coil 13 and the gap of inner magnet 2
Coordinate, coil 13, which encloses, to be rotated about its center axis and top is provided with loading axis 3, the magnetic of this set electromagnetic drive mechanism is strong magnetic
Property, the magnetic field of an approaches uniformity can be formed.
Operation principle：Coil 13 is in the uniform magnetic field that inner magnet 2 and outer magnet 14 are produced, when electric current passes through coil 13
When, coil 13 is formed the torque of rotation by the power of a pair of levels, and coil 13 drives loading axis 3 to rotate, and the dynamic fixture 11 of driving revolves
Turn, so that tested sample 10 be reversed, with signal acquisition module acquisition angles signal and the drive signal of coil, wherein angle is believed
Number it is the voltage signal of angular transducer fixed plate 4, the drive signal of coil is by signal acquisition module in the drive circuit of coil 13
Upper collection, the angle signal and the drive signal of coil collected is transferred to computer, and by conversion obtain angle value and
Torque value.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (5)
1. a kind of micro- torque mechanical testing machine, it is characterised in that：Including magnetic support framework soleplate（1）, inner magnet（2）, loading axis
（3）, magnetic-type frame cover plate（5）, dynamic fixture（11）, the magnetic support framework soleplate（1）Lower section is provided with support feet（16）, the magnetic
Open frame cover plate（5）Both sides are provided with framework lateral plate（15）, and the framework lateral plate（15) it is arranged on the magnetic support framework soleplate
（1）On, the framework lateral plate（15）It is internally provided with outer magnet（14）, the outer magnet（14）Inner side is nested with coil（13）,
The coil（13）Inner side is nested with the inner magnet（2）, the outer magnet（14）Top is provided with the movable pole of angular transducer
Plate（12）, the angular transducer movable polar plate（12）Both sides are fixed with angular transducer fixed plate（4）, the angular transducer
Fixed plate（4）It is arranged on the magnetic-type frame cover plate（5）Lower section, the loading axis（3）Bottom is connected with the outer magnet（14）,
The loading axis（3）Middle part is provided with the angular transducer movable polar plate（12）, the dynamic fixture（11）Top is provided with fixed
Fixture（9）, the dynamic fixture（11）With clamp tool（9）Sample is connected with to middle part（10）, the clamp tool（9）Top connects
It is connected to cantilever beam（8）, the cantilever beam（8）Side is fixed with motorized precision translation stage（7）, the motorized precision translation stage（7）Install side
There is column（6）It is fixed on the magnetic-type frame cover plate（5）Top.
2. a kind of micro- torque mechanical testing machine according to claim 1, it is characterised in that：The support feet（16）For regulation
The support feet of height, the motorized precision translation stage（7）For the translation stage of height up and down.
3. a kind of micro- torque mechanical testing machine according to claim 1, it is characterised in that：The magnetic support framework soleplate（1）
With the magnetic-type frame cover plate（5）It is the rack construction with weak magnetic, and the magnetic-type frame cover plate（5）Middle part is provided with
Through hole, the framework lateral plate（15）For triangular structure, and top is provided with small through hole.
4. a kind of micro- torque mechanical testing machine according to claim 1, it is characterised in that：The loading axis（3）Live on top
It is dynamic to be connected with the dynamic fixture（11）, the loading axis（3）Middle part is connected with the magnetic-type frame cover plate（5）, it is described to add
Carry axle（3）Bottom is connected with the angular transducer movable polar plate（12）With the outer magnet（14）.
5. a kind of micro- torque mechanical testing machine according to claim 1, it is characterised in that：The coil（13）It is nested in institute
State inner magnet（2）Periphery, the outer magnet（14）It is nested in the coil（13）Outside, the outer magnet（14）, coil
（13）With the inner magnet（2）Three is coaxial, the outer magnet（14）With the coil（13）Between gap coordinate, the coil
（13）With the inner magnet（2）Between gap coordinate, the coil（13）Enclose be rotated about its center axis and top be provided with it is described
Loading axis（3）, the magnetic of this set electromagnetic drive mechanism is ferromagnetism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710394723.8A CN107167388A (en) | 2017-05-29 | 2017-05-29 | A kind of micro- torque mechanical testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710394723.8A CN107167388A (en) | 2017-05-29 | 2017-05-29 | A kind of micro- torque mechanical testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107167388A true CN107167388A (en) | 2017-09-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710394723.8A Pending CN107167388A (en) | 2017-05-29 | 2017-05-29 | A kind of micro- torque mechanical testing machine |
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| Country | Link |
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| CN (1) | CN107167388A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112378832A (en) * | 2021-01-15 | 2021-02-19 | 成都理工大学 | Drilling fluid dynamic damage evaluation instrument based on glass core |
-
2017
- 2017-05-29 CN CN201710394723.8A patent/CN107167388A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112378832A (en) * | 2021-01-15 | 2021-02-19 | 成都理工大学 | Drilling fluid dynamic damage evaluation instrument based on glass core |
| CN112378832B (en) * | 2021-01-15 | 2021-03-30 | 成都理工大学 | Drilling fluid dynamic damage evaluation instrument based on glass core |
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| PB01 | Publication | ||
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Application publication date: 20170915 |