CN110186796A - A kind of orthodontic utility arch bracket frictional wear experimental device and test method - Google Patents
A kind of orthodontic utility arch bracket frictional wear experimental device and test method Download PDFInfo
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- CN110186796A CN110186796A CN201910464254.1A CN201910464254A CN110186796A CN 110186796 A CN110186796 A CN 110186796A CN 201910464254 A CN201910464254 A CN 201910464254A CN 110186796 A CN110186796 A CN 110186796A
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- 238000010998 test method Methods 0.000 title abstract description 9
- 230000007246 mechanism Effects 0.000 claims abstract description 47
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- 238000002474 experimental method Methods 0.000 claims abstract description 30
- 238000013480 data collection Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 238000012937 correction Methods 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims description 23
- 230000036316 preload Effects 0.000 claims description 21
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 10
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- 210000003734 kidney Anatomy 0.000 claims description 5
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- 239000003292 glue Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 206010061274 Malocclusion Diseases 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000011888 foil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
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- 230000003239 periodontal effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- 238000004088 simulation Methods 0.000 description 1
- 230000001225 therapeutic effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/02—Measuring coefficient of friction between materials
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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
- G01N3/56—Investigating resistance to wear or abrasion
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Abstract
The invention discloses a kind of orthodontic utility arch bracket frictional wear experimental device and test methods, it include the arch wire for orthodontic correction, test table top, it is fixedly connected on experiment table top and fixes and pre-tighten the fixed pre-tightening mechanism of arch wire of arch wire, the pretightning force mechanism for testing of arch wire pretightning force is measured simultaneously, apply the friction testing mechanism of load, and the force feedback by cantilever beam and the data collection system for measurement data to arch wire with cantilever beam and by cantilever beam；The friction testing mechanism driving cantilever beam is along arch wire length direction reciprocating friction arch wire；The present invention can quantify influence of the arch wire pretightning force to experimental result by digital display tensiometer, accurately control experimental variable, keep experimental result more reliable effective, it is very helpful to influence of the variation of pretightning force to arch wire bracket friction and wear behavior is furtherd investigate, provides a kind of more reliable and effective analogue experiment method for arch wire bracket friction and Wear Study.
Description
Technical field
The present invention relates to Orthodontics research equipment field more particularly to a kind of orthodontic utility arch brackets
Frictional wear experimental device and test method.
Background technique
Malocclusion not only results in oral cavity function exception, is easy to cause disease as a kind of clinical common sympton, and
Beauty is seriously affected, thus the correction of malocclusion is more and more welcomed by the people in the modern society of civilized high development.
In orthodontic treatment, one of mostly important treatment means are using the orthodontic being made of arch wire and bracket
Device, also therefore, it has become one of research emphasis of Orthodontics for the friction and wear behavior of arch wire bracket.It is suitable by selecting
Arch wire bracket material, specification, method of surface finish, fixed form, magnitude of load reduce rubbing between arch wire bracket as much as possible
Power is wiped, therapeutic efficiency can be greatlyd improve, reduce periodontal lesion.Therefore, phase when arch wire bracket actual working state is simulated
To sliding condition, and the frictional force size between arch wire bracket is accurately measured, can be design and manufacture, the oral cavity doctor of arch wire bracket
Orthodontic treatment and correction correlative study strong foundation is provided.
Current equipment generally uses arch wire and bracket to contact with each other and moves back and forth, and arch wire is applying load and movement
The parameters such as pretightning force can be made to generate variation in the process, experimental result is had an impact, high precision measurement is not achieved and obtained accurately
The requirement of experiment of property data.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of orthodontic utility arch brackets to rub
Wipe abrasion experiment device and test method, it is intended to which solving arch wire compression and movement in existing experimental facilities leads to the parameters such as preload amount
Variation is generated, the problem of having an impact to experimental result, high precision measurement is not achieved and obtains accuracy data.
Technical scheme is as follows:
A kind of orthodontic utility arch bracket frictional wear experimental device includes the arch wire for orthodontic correction, real
Table top is tested, is fixedly connected on experiment table top and fixes and pre-tighten the fixed pre-tightening mechanism of arch wire of arch wire, be fixedly mounted on experiment
It is matched for clamping tightly on table top and with the fixed pre-tightening mechanism of the arch wire and the exceptionally straight arch wire measures the preload of arch wire pretightning force simultaneously
Power mechanism for testing is fixedly mounted on experiment table top and applies rubbing for load to the arch wire with cantilever beam and by cantilever beam
Data after wiping mechanism for testing, and the connection cantilever beam and the force feedback for passing through cantilever beam for measurement data, which acquire, is
System；The friction testing mechanism driving cantilever beam is along arch wire length direction reciprocating friction arch wire.
Further, the fixed pre-tightening mechanism of the arch wire includes positioned at cantilever beam the same side and to be fixedly mounted on experiment table top
On pedestal, be fixedly connected on the guide rail on pedestal along the length direction of arch wire, be set on guide rail and along the pre- of guide rail sliding
Tight sliding block, the fixing screws that preload sliding block is fixed on the base by pre-tightening the kidney slot opened up on sliding block, spiral are connected to
It pre-tightens sliding block side and tightens rear end against the positioning screw of guide rail, be fixedly connected on the preload block of guide rail surface, pass through spiral shell
Pit is connected on preload block and end against the pre-loading screw of preload sliding block, and is fixedly connected on and pre-tightens on sliding block and compress
The briquetting of arch wire end.
Further, the pretightning force mechanism for testing includes the horizontal test chassis being fixedly connected on experiment table top, Gu
Surely the tensiometer fixed plate being connected in horizontal test chassis, the digital display tensiometer being fixedly connected in tensiometer fixed plate, even
The connecting rod on digital display tensiometer is connect, and is fixedly connected on the collet of connecting rod end, the collet and the arch wire are solid
Determine pre-tightening mechanism to be respectively fixedly connected with the both ends of arch wire and tighten arch wire.
Further, the friction testing mechanism includes the three-shaft displacement platform being fixed on experiment table top, is fixedly connected on
On three-shaft displacement platform and by three-shaft displacement platform drives edge X-axis, the cantilever beam of three directions of Y-axis and Z axis movement, it is fixedly connected on
The end of cantilever beam and be in " recessed " shape mounting table, the bracket fixed block being fixedly connected in the groove of mounting table, be located at place
Platform inside grooves and the bracket being fixedly connected on bracket fixed block；
The bracket surface is contacted with the arch wire and the reciprocating friction along arch wire length direction.
Further, the three-shaft displacement platform includes three axis translation component, and three axis of connection translate component and are long along arch wire
It spends direction shifting axle and the motor of power is provided, be electrically connected motor and control the electric machine controller of motor.
Further, the data collection system includes several force snesors being fixedly mounted on a cantilever beam, is passed with power
The bridge box that sensor is electrically connected, the strain amplifier being electrically connected with bridge box, the data being electrically connected with strain amplifier
Collector, and the computer being electrically connected with data collector.
Further, the force snesor is distributed in the upper surface, lower surface and two sides of cantilever beam.
Further, the computer controls the electric machine controller.
Further, the arch wire is parallel with the experiment table top, and the arch wire length direction is vertical with cantilever beam.
A kind of test method of such as above-mentioned arch wire bracket frictional wear experimental device, includes following steps:
Clamping and fixation are carried out to bracket；
Clamping and fixation are carried out to arch wire, and pretightning force is applied by the fixed pre-tightening mechanism of the arch wire；
Position adjustment is carried out to bracket and load applies；
Start friction testing mechanism；
Data collection system, which acquires load information and friction force information and calculated by software, obtains coefficient of friction.
Compared with prior art, the present invention by digital display tensiometer can be rubbed with real-time measurement in arch wire pretightning force it is big
It is small, quantify influence of the arch wire pretightning force to experimental result, control bracket friction of motion arch wire, experiment can be accurately controlled and become
Amount, make experimental result more it is reliable effectively, influence of the variation to arch wire bracket friction and wear behavior to pretightning force is furtherd investigate
It is very helpful, provides a kind of more reliable and effective analogue experiment method for arch wire bracket friction and Wear Study.
Detailed description of the invention
Fig. 1 is a kind of structural representation of orthodontic utility arch bracket frictional wear experimental device of the embodiment of the present invention
Figure.
Fig. 2 is a kind of structural representation of orthodontic utility arch bracket frictional wear experimental device of the embodiment of the present invention
Figure.
Fig. 3 is the structure partial schematic diagram of friction testing mechanism and the fixed pre-tightening mechanism of arch wire in the embodiment of the present invention.
Fig. 4 is the structural schematic diagram of friction testing mechanism in the embodiment of the present invention.
Fig. 5 is a kind of flow chart of the test method based on arch wire bracket frictional wear experimental device of the present embodiment.
In figure: 2, arch wire；3, the fixed pre-tightening mechanism of arch wire；4, pretightning force mechanism for testing；5, friction testing mechanism；6, data
Acquisition system；31, pedestal；32, guide rail；33, sliding block is pre-tightened；34, kidney slot；35, pre-loading screw；36, briquetting；37, fixed spiral shell
Nail；38, block is pre-tightened；39, positioning screw；41, horizontal test chassis；42, tensiometer fixed plate；43, digital display tensiometer；44, even
Extension bar；45, collet；51, three-shaft displacement platform；511, three axis translate component；512, motor；513, electric machine controller；52, cantilever
Beam；53, mounting table；54, pin；55, bracket fixed block；56, bracket；61, force snesor；62, bridge box；63, strain amplification
Device；64, data collector；65, computer.
Specific embodiment
The present invention provides a kind of orthodontic utility arch bracket frictional wear experimental device and test methods, to make
The purpose of the present invention, technical solution and effect are clearer, clear, referring to the drawings and give an actual example to of the invention further detailed
It describes in detail bright.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
As shown in Figure 1 and Figure 2, the present invention provides a kind of orthodontic utility arch bracket frictional wear experimental device, packets
The arch wire 2 for orthodontic correction is included, horizontal positioned experiment table top (not marking in diagram) is fixedly connected on experimental bench
On face and the fixed pre-tightening mechanism 3 of arch wire of arch wire 2 is fixed and pre-tightened, the pretightning force mechanism for testing 4 of arch wire pretightning force is measured, has
Cantilever beam 52 and the friction testing mechanism 5 for applying load to arch wire 2 by cantilever beam 52, and it is anti-by the stress of cantilever beam 52
Present and be used for the data collection system 6 of measurement data.By the fixed pre-tightening mechanism 3 of arch wire and pretightning force mechanism for testing 4 arch wire 2
Level is straightened, and the pretightning force size of arch wire is measured by pretightning force mechanism for testing 4, passes through the Friction Tester with cantilever beam 52
Structure 5 rubs repeatedly to arch wire 2, so that 52 stress of cantilever beam is generated deformation, then detect cantilever beam 52 by data collection system 6
Force feedback to analysis obtain the fretting wear data of arch wire 2.
Such as Fig. 1, shown in Fig. 3, the fixed pre-tightening mechanism 3 of arch wire is fixedly mounted on experiment table top by screw, and arch wire is fixed
Pre-tightening mechanism 3 includes positioned at 52 the same side of cantilever beam and to be fixedly mounted on the pedestal 31 tested on table top, is led on pedestal 31
It crosses screw and is fixedly connected with guide rail 32, guide rail 32 is laid with along the length direction of arch wire 2, and preload sliding block is arranged on guide rail 32
33, pre-tightening sliding block 33 can slide along guide rail 32, offer kidney slot 34 on pre-tightening sliding block 33, pass through kidney slot 34 and in pedestal
Spiral is connected with fixing screws 37 on 31, and when preload sliding block 33 is moved to specific position, preload is slided by fixing screws 37
Block 33 is fixed on pedestal 31, is connected with positioning screw 39, screwed in place screw by threaded hole in the side for pre-tightening sliding block 33
39, end is resisted against 32 side of guide rail, fixes preload sliding block 33 with 32 position of guide rail；It is solid by screw on 32 surface of guide rail
Surely it is connected with and pre-tightens block 38, pre-loading screw 35 is connected with by threaded hole in the two sides for pre-tightening block 38,35 level of pre-loading screw is set
It sets and 35 end of pre-loading screw is against sliding block 33 is pre-tightened, can be pushed by the rotation of pre-loading screw 35 and pre-tighten sliding block 33, pre-tighten sliding block
Briquetting 36 is fixedly connected with by screw on 33, briquetting 36 is for compressing 2 end of arch wire, on the preload sliding block 33 under briquetting 36
It is offered on surface locating slot (not marked in diagram), arch wire 2 is placed in locating slot its end when fixed.
As shown in Fig.1 and Fig.2, pretightning force mechanism for testing 4 is fixedly mounted on experiment table top by screw, includes fixation
The horizontal test chassis 41 being connected on experiment table top, has been connected by screw to tensiometer fixed plate in horizontal test chassis 41
42, digital display tensiometer 43 is fixedly connected with by screw in tensiometer fixed plate 42, it is solid at the effect end of digital display tensiometer 43
Surely it is connected with connecting rod 44, is threadably secured in the end of connecting rod 44 and is connected with collet 45, collet 45 clamps the another of arch wire 2
One end, and by being respectively fixedly connected with the both ends of arch wire 2 with the briquetting 36 on the fixed pre-tightening mechanism 3 of arch wire and tightening arch wire 2, make
Arch wire 2 is parallel with the experiment table top, the range 50N of digital display tensiometer 43, scale division value 0.01N, and precision reaches ± 0.5%, Ke Yijing
The really preload degree of control arch wire 2, avoids the elastic deformation of arch wire 2 itself from generating interference to experimental result.
2 one end of arch wire is placed in the locating slot for pre-tightening 33 upper surface of sliding block, and fixed using briquetting 36, and then arch wire 2 is another
One end clamps completion arch wire 2 by collet 45 and fixes；Digital display tensiometer 43 is opened later to switch, and is turned pre-loading screw 35, is squeezed it
It presses and elapses and pre-tighten block 38, push and pre-tighten sliding block 33 along the sliding of guide rail 32, and then exceptionally straight preload is carried out to arch wire 2, observe simultaneously
The registration of digital display tensiometer 43, when pretightning force size reaches designated value, stopping turns pre-loading screw 35, and will pre-tighten sliding block 33
It is fixed on pedestal 31 by fixing screws 37, turning positioning screw 39 fixes preload sliding block 33 with 32 position of guide rail, in this way
Keep the Pre strained state of arch wire 2；Finally release pre-loading screw 35 is complete to avoid pre-loading screw 35 and the mechanical damage for pre-tightening block 38
It is pre-tightened at arch wire 2.
As shown in Figure 1, Figure 2, Figure 4 shows, friction testing mechanism 5 includes three axle positions being fixed by screws on experiment table top
Moving stage 51 is fixedly connected with cantilever beam 52 by screw in the mobile output end of three-shaft displacement platform 51, and three-shaft displacement platform 51 includes
There are three axis to translate component 511, three axis translation component 511 is the micrometer by rotating three X-axis, Y-axis and Z axis directions manually
And sliding platform is realized in the movement in three X-axis, Y-axis and Z axis directions, it is the ordinary skill in the art that three axis, which translate component 511,
Specific structure is not described, and three axis translation component 511 can be realized up and down by manually controlling the cantilever beam for making to be connected thereto 52, left
Right and front and back movement, the three-shaft displacement platform 51 in the present embodiment further includes having motor 512, the output shaft of motor 512
It is fixedly connected in the axis moved along 2 length direction of arch wire by shaft coupling with three axis translation component 511, is powered in motor 512
Property be connected with electric machine controller 513, motor 512 uses three-phase stepper motor, can be with by three-phase stepper motor controller 513
It realizes being precisely controlled to the speed of motor 512, and makes the cantilever beam 52 being connected on three axis translation component 511 along arch wire
Auto-translating is realized on 2 length directions, avoids manual operation, and the realization of subsequent friction process is precisely controlled.
One end of cantilever beam 52 is fixedly connected on three-shaft displacement platform 51, and the other end protrudes three-shaft displacement platform 51, is outstanding
The end of arm beam 52,52 end of cantilever beam are fixedly connected with mounting table 53 by screw, opened up among mounting table 53 it is fluted, outside
Profile is in " recessed " shape, is fixedly connected with bracket fixed block 55 by pin 54 in the groove of mounting table 53, pin 54 is through recessed
Slot two sidewalls and bracket fixed block 55 make 55 inlay card of bracket fixed block in the groove of mounting table 53, on bracket fixed block 55
It is bonded with bracket 56, bracket 56 is located at the lower section of arch wire 2 and is in contact with arch wire 2, and 2 length direction of arch wire and cantilever beam 52 hang down
Directly；During actual orthodontic, bracket 56 is to be bonded on tooth face, and by 2 banding bracket 56 of arch wire, make tooth
Correction.
When three-shaft displacement platform 51 starts work, driving cantilever beam 52 is moved back and forth along 2 length direction of arch wire, and then drives support
The friction arch wire 2 of slot 56, simulates friction environment；Existing arch wire 2 is with 56 frictional experiment device of bracket mostly using arch wire 2 as actively
Part, fixation and preload process due to arch wire 2 are the important link of Preparatory work of experiment work, to obtain precise information in the prior art
Then make the design comparison of the fixed pre-tightening mechanism 3 of arch wire complicated, and arch wire can be made in the present embodiment using bracket 56 as driving link
The design of fixed pre-tightening mechanism 3 is simple, practical, more meets requirement of experiment.
The fixation procedure of bracket 56 are as follows: bracket 56 is placed on bracket fixed block 55, is then adjusted three-shaft displacement platform, is made to bend
Silk 2 is completed correctly to contact with bracket 56, and being clamped bracket 56 with tweezers at this time and adjusted three-shaft displacement platform 51 makes bracket fixed block 55
It drops to 56 bottom of bracket there are certain distance, adjusts three-shaft displacement platform 51 after 1 ~ 2 drop glue is dripped on bracket fixed block 55,
It contacting bracket fixed block 55 again with 56 bottom of bracket and arch wire 2 and the correct of bracket 56 is kept to contact, the glue solidifies for waiting,
It is fixed to complete bracket 56.
As shown in Figure 1 and Figure 2, data collection system 6 includes that several power sensing of fixed installation is pasted on cantilever beam 52
Device 61, force snesor 61 is provided with 4 in the present embodiment, and the distribution of force snesor 61 is located at upper and lower two surfaces of cantilever beam 52
With the side of two sides, it is electrically connected with bridge box 62 with force snesor 61, bridge box 62 is mainly used for measuring force snesor 61
The variation of DC resistance, bridge box 62 are electrically connected with strain amplifier 63, and strain amplifier 63 is for sending bridge box 62
The amplitude modulated voltage come carries out undistorted amplification, is electrically connected with data collector 64, data collector 64 with strain amplifier 63
For converting analog signals into digital signal, data collector 64 is electrically connected with computer 65, and right by computer 65
Data processing and analysis, obtain frictional force and coefficient of friction.Computer 65 is electrically connected and controls electric machine controller 513, thus
Accurate manipulation can be realized to motor 512 by computer 65, cantilever beam is accurately controlled according to the demand of data collection system 6
52 reciprocating motion and arch wire 2 generate friction, the accurate relative position for controlling arch wire 2 and bracket 56 and relative pressure.
The course of work of orthodontic utility arch bracket frictional wear experimental device is as follows:
It adjusts the control cantilever beam 52 of three-shaft displacement platform 51 and contacts and push arch wire 2 upwards, make the load between arch wire 2 and bracket 56
Reach a certain designated value, start after the kinematic parameter of motor 512 is set, by motor 512 with dynamic triaxial translation component 511
Axis along 2 length direction of arch wire starts positive and negative rotation, drives cantilever beam 52 to drive bracket 56 to translate component 511 by three axis
Make the movement of low speed reciprocating friction relative to arch wire 2.Data collection system 6 is by the foil gauge on force snesor 61 in real time by cantilever
The stress value of beam 52 is shown and is recorded in the form of voltage value, and frictional force and friction between corresponding arch wire 2 and bracket 56 is calculated
Coefficient.
As shown in figure 5, the embodiment of the present invention is also provided and a kind of is filled based on arch wire bracket frictional wear experiment described above
The test method set, steps are as follows:
S10, clamping and fixation are carried out to bracket.Detailed process is that bracket fixed block is fixed in the groove of mounting table by pin,
Then bracket placement adjusts three-shaft displacement platform on bracket fixed block, make arch wire complete correctly to contact with bracket, use tweezers at this time
Clamping bracket and adjust three-shaft displacement platform drop to bracket fixed block there are certain distances with bracket bottom, in bracket fixed block
Three-shaft displacement platform is adjusted after upper 1 ~ 2 drop glue of drop, bracket fixed block is contacted again with bracket bottom and keeps arch wire and bracket
Correct contact, wait the glue solidifies, complete bracket fix.
S20, clamping and fixation are carried out to arch wire, and pretightning force is applied by the fixed pre-tightening mechanism of the arch wire.Specific mistake
Journey is that arch wire one end is placed in the locating slot for pre-tightening sliding block upper surface, and is fixed using briquetting, and then the arch wire other end is by collet
Clamping is completed arch wire and is fixed；Digital display tensiometer switch is opened later, is turned pre-loading screw, is squeezed it and elapse preload block, push away
The dynamic sliding block that pre-tightens is slided along guide rail, and then carries out exceptionally straight preload to arch wire, while observing the registration of digital display tensiometer, works as pretightning force
When size reaches designated value, stopping turns pre-loading screw, and will pre-tighten sliding block and be fixed on the base by fixing screws, and it is fixed to turn
Position screw will pre-tighten sliding block and remain unchanged with slide position, and keep the Pre strained state of arch wire；Unclamp pre-loading screw finally to keep away
Exempt from pre-loading screw and pre-tighten the mechanical damage of block, completes arch wire and pre-tighten.
S30, position adjustment and load application are carried out to bracket.Detailed process be adjust three-shaft displacement platform control cantilever beam to
Upper contact simultaneously pushes arch wire, and the load between arch wire and bracket is made to reach a certain designated value.
S40, starting friction testing mechanism, data collection system acquire load information and friction force information；Motor is set
Kinematic parameter after start, by motor with dynamic triaxial translation component the axis along arch wire length direction move, thus pass through three
Axis translation component drives cantilever beam driving bracket to make the movement of low speed reciprocating friction relative to arch wire.
S50, data collection system acquisition load information and friction force information simultaneously calculate acquisition coefficient of friction by software；Number
The stress value of cantilever beam is shown and recorded in the form of voltage value in real time by the foil gauge on force snesor according to acquisition system, and
Frictional force and coefficient of friction between corresponding arch wire and bracket are obtained by software analytical calculation.
The bow of different size, material is carried out on orthodontic utility arch bracket frictional wear experimental device of the invention
The low speed reciprocating friction movement of silk and bracket under different experiments Parameter Conditions, can probe into many factors between arch wire and bracket
The influence of frictional force, digital display tensiometer can quantify arch wire pretightning force with the pretightning force size of arch wire in real-time measurement friction process
Influence to experimental result controls bracket friction of motion arch wire, can accurately control experimental variable, avoids arch wire movement to pre-
The parameters such as tight amount generate variation, have an impact to experimental result, lead to that high precision measurement is not achieved and obtain accuracy data
Problem；The present invention make experimental result more it is reliable effectively, to further investigation pretightning force variation to arch wire bracket friction and abrasion
The influence of energy is very helpful, and it is real to provide a kind of more reliable and effective simulation for arch wire bracket friction and Wear Study
Proved recipe method.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of orthodontic utility arch bracket frictional wear experimental device includes the arch wire for orthodontic correction,
Test table top, which is characterized in that further include having the arch wire for being fixedly connected on experiment table top and fixing and pre-tighten arch wire fixed pre-
Tight mechanism, be fixedly mounted on experiment table top and be matched for clamping tightly with the fixed pre-tightening mechanism of the arch wire and the exceptionally straight arch wire simultaneously
Measure arch wire pretightning force pretightning force mechanism for testing, be fixedly mounted on experiment table top on and with cantilever beam and by cantilever beam to
The arch wire is used for after applying the friction testing mechanism of load, and the connection cantilever beam and the force feedback for passing through cantilever beam
The data collection system of measurement data；
The friction testing mechanism driving cantilever beam is along arch wire length direction reciprocating friction arch wire.
2. orthodontic utility arch bracket frictional wear experimental device according to claim 1, which is characterized in that described
The fixed pre-tightening mechanism of arch wire includes positioned at cantilever beam the same side and to be mounted on the pedestal tested on table top, along the length side of arch wire
It to the guide rail being fixedly connected on pedestal, is set on guide rail and along the preload sliding block of guide rail sliding, is opened on sliding block by pre-tightening
If kidney slot fixing screws that preload sliding block is fixed on the base, spiral, which is connected to, to be pre-tightened sliding block side and tightens rear end
Against the positioning screw of guide rail, be fixedly connected on the preload block of guide rail surface, by threaded hole be connected to pre-tighten block on and end
Against the pre-loading screw of preload sliding block, and it is fixedly connected on the briquetting for pre-tightening on sliding block and compressing arch wire end.
3. orthodontic utility arch bracket frictional wear experimental device according to claim 1, which is characterized in that described
Pretightning force mechanism for testing includes the horizontal test chassis being fixedly connected on experiment table top, is fixedly connected on horizontal test chassis
On tensiometer fixed plate, the digital display tensiometer being fixedly connected in tensiometer fixed plate, the company being connected on digital display tensiometer
Extension bar, and it is fixedly connected on the collet of connecting rod end, the collet and the arch wire fix pre-tightening mechanism fixed company respectively
It connects the both ends of arch wire and tightens arch wire.
4. orthodontic utility arch bracket frictional wear experimental device according to claim 1, which is characterized in that described
Friction testing mechanism includes the three-shaft displacement platform being fixed on experiment table top, is fixedly connected on three-shaft displacement platform and by three axis
The mobile cantilever beam in three displacement platform drives edge X-axis, Y-axis and Z axis directions, is fixedly connected on the end of cantilever beam and in " recessed "
The mounting table of shape, the bracket fixed block being fixedly connected in the groove of mounting table, positioned at mounting table inside grooves and is fixedly connected
Bracket on bracket fixed block；
The bracket surface is contacted with the arch wire and the reciprocating friction along arch wire length direction.
5. orthodontic utility arch bracket frictional wear experimental device according to claim 4, which is characterized in that described
Three-shaft displacement platform includes three axis translation component, and three axis of connection translate component and to provide power along arch wire length direction shifting axle
Motor, be electrically connected motor and control the electric machine controller of motor.
6. orthodontic utility arch bracket frictional wear experimental device according to claim 5, which is characterized in that described
Data collection system includes several force snesors being fixedly mounted on a cantilever beam, the electric bridge being electrically connected with force snesor
Box, the strain amplifier being electrically connected with bridge box, the data collector being electrically connected with strain amplifier, and adopted with data
The computer that storage is electrically connected.
7. orthodontic utility arch bracket frictional wear experimental device according to claim 6, which is characterized in that described
Force snesor is distributed in the upper surface, lower surface and two sides of cantilever beam.
8. orthodontic utility arch bracket frictional wear experimental device according to claim 6, which is characterized in that described
Computer controls the electric machine controller.
9. orthodontic utility arch bracket frictional wear experimental device according to claim 8, which is characterized in that described
Arch wire is parallel with the experiment table top, and the arch wire length direction is vertical with cantilever beam.
10. a kind of test of the orthodontic utility arch bracket frictional wear experimental device as described in claim 1-9 is any
Method, which is characterized in that include following steps:
Clamping and fixation are carried out to bracket；
Clamping and fixation are carried out to arch wire, and pretightning force is applied by the fixed pre-tightening mechanism of the arch wire；
Position adjustment is carried out to bracket and load applies；
Start friction testing mechanism；
Data collection system, which acquires load information and friction force information and calculated by software, obtains coefficient of friction.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186795A (en) * | 2019-05-30 | 2019-08-30 | 深圳大学 | A kind of side's arch wire and bracket rubbing device and test method |
| CN110186797A (en) * | 2019-05-30 | 2019-08-30 | 深圳大学 | A kind of mouth cavity orthodontic correction side arch wire frictional wear experimental device and its experimental method |
| CN112393836A (en) * | 2020-12-03 | 2021-02-23 | 北京联袂义齿技术有限公司 | Orthodontic force measuring device for tooth correction |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613431A (en) * | 2004-11-30 | 2005-05-11 | 哈尔滨工业大学 | Simulator for friction force between denture groove and correction string |
| CN102590005A (en) * | 2012-03-29 | 2012-07-18 | 西安交通大学 | Orthodontics arch wire support groove friction abrasion experiment device |
| US20140090445A1 (en) * | 2012-05-24 | 2014-04-03 | Scott H. Norman | Abrasion wear tester |
| CN204101398U (en) * | 2014-11-01 | 2015-01-14 | 青岛科技大学 | A kind of detection steel rope abrasion experimental provision |
| CN104458566A (en) * | 2014-12-05 | 2015-03-25 | 中国矿业大学 | High-speed and fretting-friction testing apparatus for steel wire ropes |
| CN108872064A (en) * | 2018-04-26 | 2018-11-23 | 深圳大学 | A kind of writing implement friction testing device and its test method |
| CN110186797A (en) * | 2019-05-30 | 2019-08-30 | 深圳大学 | A kind of mouth cavity orthodontic correction side arch wire frictional wear experimental device and its experimental method |
| CN110186795A (en) * | 2019-05-30 | 2019-08-30 | 深圳大学 | A kind of side's arch wire and bracket rubbing device and test method |
| CN210269485U (en) * | 2019-05-30 | 2020-04-07 | 深圳大学 | Experimental device for frictional wear of orthodontic arch wire bracket |
-
2019
- 2019-05-30 CN CN201910464254.1A patent/CN110186796B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1613431A (en) * | 2004-11-30 | 2005-05-11 | 哈尔滨工业大学 | Simulator for friction force between denture groove and correction string |
| CN102590005A (en) * | 2012-03-29 | 2012-07-18 | 西安交通大学 | Orthodontics arch wire support groove friction abrasion experiment device |
| US20140090445A1 (en) * | 2012-05-24 | 2014-04-03 | Scott H. Norman | Abrasion wear tester |
| CN204101398U (en) * | 2014-11-01 | 2015-01-14 | 青岛科技大学 | A kind of detection steel rope abrasion experimental provision |
| CN104458566A (en) * | 2014-12-05 | 2015-03-25 | 中国矿业大学 | High-speed and fretting-friction testing apparatus for steel wire ropes |
| CN108872064A (en) * | 2018-04-26 | 2018-11-23 | 深圳大学 | A kind of writing implement friction testing device and its test method |
| CN110186797A (en) * | 2019-05-30 | 2019-08-30 | 深圳大学 | A kind of mouth cavity orthodontic correction side arch wire frictional wear experimental device and its experimental method |
| CN110186795A (en) * | 2019-05-30 | 2019-08-30 | 深圳大学 | A kind of side's arch wire and bracket rubbing device and test method |
| CN210269485U (en) * | 2019-05-30 | 2020-04-07 | 深圳大学 | Experimental device for frictional wear of orthodontic arch wire bracket |
Non-Patent Citations (3)
| Title |
|---|
| 丁少华 等: "自锁托槽和传统托槽摩擦力的实验研究", 《口腔医学研究》, vol. 24, no. 4, pages 421 - 422 * |
| 仇玲玲 等: "不同陶瓷托槽与金属弓丝间摩擦力的研究", 《北京口腔医学》, vol. 19, no. 5, pages 280 - 282 * |
| 厉松 等: "口腔正畸托槽与弓丝之间最大静摩擦力与静摩擦系数的实验研究", 《北京口腔医学》, vol. 15, no. 3, pages 133 - 135 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110186795A (en) * | 2019-05-30 | 2019-08-30 | 深圳大学 | A kind of side's arch wire and bracket rubbing device and test method |
| CN110186797A (en) * | 2019-05-30 | 2019-08-30 | 深圳大学 | A kind of mouth cavity orthodontic correction side arch wire frictional wear experimental device and its experimental method |
| CN112393836A (en) * | 2020-12-03 | 2021-02-23 | 北京联袂义齿技术有限公司 | Orthodontic force measuring device for tooth correction |
| CN112393836B (en) * | 2020-12-03 | 2022-01-04 | 北京联袂义齿技术有限公司 | Orthodontic force measuring device for tooth correction |
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