CN209459697U - Adjustable measuring device that is a kind of while measuring piezoelectric actuator load and output displacement - Google Patents
Adjustable measuring device that is a kind of while measuring piezoelectric actuator load and output displacement Download PDFInfo
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- CN209459697U CN209459697U CN201920129743.7U CN201920129743U CN209459697U CN 209459697 U CN209459697 U CN 209459697U CN 201920129743 U CN201920129743 U CN 201920129743U CN 209459697 U CN209459697 U CN 209459697U
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- piezoelectric actuator
- hinge
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- output displacement
- measuring
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Abstract
The utility model relates to a kind of adjustable measuring devices for measuring piezoelectric actuator load and output displacement simultaneously, it includes bottom plate, flexible amplification mechanism, flexible amplification mechanism includes two groups of hinge sets, the both ends of two groups of hinge sets are separately connected, one group of hinge set is equipped with fixing end, the fixing end is fixed on the bottom plate, another group of hinge set is equipped with shift end, displacement sensor is fixedly installed in the outside of shift end, the test side of displacement sensor and displacement end in contact, the centre of two groups of hinge sets is equipped with piezoelectric actuator, regulating mechanism is arranged in any one junction of two groups of hinge sets, the end thereof contacts of regulating mechanism and piezoelectric actuator, pressure sensor is arranged in the other end of piezoelectric actuator, the active force (load) of piezoelectric actuator is directly measured with pressure sensor；The device directly measures the displacement of flexible bridge-type enlarger shift end with displacement sensor, and the elongation (output displacement) of piezoelectric actuator is calculated further according to the auxometer of flexible bridge-type enlarger.
Description
Technical field
The utility model is more particularly to a kind of adjustable measuring device for measuring piezoelectric actuator load and output displacement simultaneously.
Background technique
With the high speed development of 21st century science and technology, aerospace, optics, biomedicine, robot and nanometer skill
The fields such as art are constantly risen, these fields require system and execute point-device positioning and displacement, such as the reality of microfeed
The existing, direct compensation of mismachining tolerance, extra accuracy cutting etc..
Piezoelectric actuator is Micro-displacement Driving component important in microbit moving device, and in these fields, piezoelectric ceramics is driven
Dynamic body reveals advantage below: displacement resolution is high, and small in size, inertia is small, and response is fast, and structure is simple.
In use, needing to know that different loads (active force) pushes between the driving voltage and output displacement of electric drive
Relationship therefore design a kind of while measuring piezoelectric actuator load and output displacement, device can make piezoelectric actuator
Higher precision positioning is realized in these fields, is preferably applied, is had great importance.
Utility model content
In view of the deficienciess of the prior art, measuring piezoelectric actuator simultaneously the purpose of this utility model is to provide a kind of
The adjustable measuring device of load and output displacement.
To achieve the above object, the utility model provides following technical solution: a kind of while measuring piezoelectric actuator and bear
Carry the adjustable measuring device with output displacement comprising the flexible amplification mechanism on bottom plate, the flexible amplification is arranged in bottom plate
Mechanism includes two groups of hinge sets connected and composed by several right circular flexure hinges, and the both ends of two groups of hinge sets are separately connected, wherein
One group of hinge set is equipped with fixing end, and the fixing end is fixed on the bottom plate, and another group of hinge set is equipped with shift end, institute
State the outside fixed setting displacement sensor of shift end, the test sides of institute's displacement sensors and displacement end in contact, described two groups
The centre of hinge set is equipped with piezoelectric actuator, and regulating mechanism, the adjusting machine is arranged in any one junction of two groups of hinge sets
Pressure sensor, the pressure sensor is arranged in the other end of the end thereof contacts of structure and piezoelectric actuator, the piezoelectric actuator
Rear end contacted with another junction of two groups of hinge sets.
Two groups of hinge sets are arranged by two vertical end connections in rectangle.
The flexible amplification mechanism is integrally formed setting.
A right circular flexure hinge in any one group of hinge set extends outward to form fixing end, the fixing end and pedestal
It is fixedly connected.
Sliding slot is equipped on the inside of any one vertical end, the regulating mechanism passes through vertical end and sliding slot constitutes sliding cooperation,
And one end of the regulating mechanism is in contact with piezoelectric actuator.
The regulating mechanism includes adjusting screw and constitutes the adjusting block being linked, the adjusting block with adjusting screw
Setting is contacted with the piezoelectric actuator.
Ball is equipped between the adjusting block and piezoelectric actuator.
Dismountable firm banking is fixed on the chassis, the piezoelectric actuator is placed on the firm banking.
The section of the firm banking is arc-shaped or rectangle.
The utility model has the beneficial effects that directly measuring the active force (load) of piezoelectric actuator with pressure sensor；It should
Device directly measures the displacement of flexible bridge-type enlarger shift end with displacement sensor, further according to flexible bridge-type enlarger
The elongation (output displacement) of auxometer calculating piezoelectric actuator.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the utility model.
Fig. 2 is the structural schematic diagram of the utility model.
Fig. 3 is the rough schematic of flexible bridge-type enlarger.
Fig. 4 is the schematic diagram of flexible bridge-type enlarger.
Fig. 5 a, b are the structural schematic diagram of firm banking.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral；It can be mechanical connection, it can also
To be electrical connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary
Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage
Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.In addition, the skill between each embodiment
Art scheme can be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when technical solution
It will be understood that the combination of this technical solution is not present in conjunction with there is conflicting or cannot achieve when, also not in the utility model
It is required that protection scope within.
The utility model discloses a kind of adjustable measuring device for measuring piezoelectric actuator load and output displacement simultaneously,
Including bottom plate 1, the flexible amplification mechanism 7 on bottom plate is set, the flexible amplification mechanism includes two groups of several straight round flexible hinges
The hinge set that chain 71 connects, the both ends of two groups of hinge sets are separately connected, i.e., two groups of hinge sets are connected by two vertical ends 72, and
It is arranged in rectangle, wherein the right circular flexure hinge of one group of hinge set is placed on the bottom plate, it is lateral outside the right circular flexure hinge
Fixing end 73 is extended to form outside, is fixed by bolts on bottom plate, and the right circular flexure hinge is the center of this group of hinge set, separately
Displacement sensor is fixedly installed as shift end, the outside of the shift end in the center of one group of hinge set, institute's displacement sensors 2
Test side is in contact with shift end, and when piezoelectric actuator is by electricity, which is able to detect the position of flexible amplification mechanism
Shifting amount.
Wherein, the arc surface of adjacent two right circular flexure hinges of shift end and mobile terminal two sides not on the same line,
With deviation b.
The centre of two groups of hinge sets is equipped with piezoelectric actuator, any one junction of two groups of hinge sets, which is arranged, to be adjusted
The right side setting regulating mechanism of mechanism, i.e. piezoelectric actuator contacts, then pressure sensing is arranged in the left side of piezoelectric actuator 5
Device 6 contacts, while the other end of pressure sensor 6 is in contact with another junction.
The regulating mechanism includes the adjusting screw 4 across vertical end setting, one end of the adjusting screw and 3 structure of adjusting block
At being linked.Wherein adjusting screw is threadedly coupled with flexible amplification mechanism.
It is equipped with sliding slot 74 on the inside of any one vertical end, the adjusting block is placed in the sliding slot, and the adjusting block 3 can be with
Adjusting screw is rotated in sliding in sliding slot, by adjusting adjusting screw, between adjustable adjusting block and piezoelectric actuator away from
From, by changing the position of the adjusting block, the detection of the piezoelectric actuator of Lai Shixian different length, while by adjusting spiral shell
Silk, so that adjusting block gives piezoelectric actuator certain pretightning force.
It is equipped with ball 8 between the adjusting block and piezoelectric actuator, the masterpiece of piezoelectric actuator can be made using ball
With on one point, detect more acurrate.
Dismountable firm banking is fixed on the chassis, the piezoelectric actuator is placed on the firm banking.
The section of the firm banking is arc-shaped or rectangle, can both measure the piezoelectric actuator of tubular, can also be with
The piezoelectric actuator of strip is measured, replacement firm banking is directly passed through.
X is extended after piezoelectric actuator making alive, its two sections are respectively acting on pressure sensor and ball, adjusting block, tune
It saves on screw, and is transmitted on the two sides of flexible bridge-type enlarger, generate directed force F, this active force is by pressure sensing
Device is measured；Displacement y is generated in the other directions, sees Fig. 3.This displacement is measured by displacement sensor.
The magnifying power of bridge-type enlarger isλ=cotα=a/b, then the elongation of piezoelectric actuatorX=y/ λ,It is obtained to indirect
To the elongation of piezoelectric actuator, such as Fig. 4.
Embodiment is not construed as limitations of the present invention, but changes made by any spirit based on the utility model
Into should all be within the protection scope of the utility model.
Claims (9)
1. a kind of adjustable measuring device for measuring piezoelectric actuator load and output displacement simultaneously, it is characterised in that: it includes bottom
Plate, is arranged in the flexible amplification mechanism on bottom plate, and the flexible amplification mechanism includes two groups and connected by several right circular flexure hinges
The both ends of the hinge set of composition, two groups of hinge sets are separately connected, wherein one group of hinge set is equipped with fixing end, the fixing end is fixed
It is arranged on the bottom plate, another group of hinge set is equipped with shift end, and displacement sensor, institute is fixedly installed in the outside of the shift end
The test side of displacement sensors and displacement end in contact, the centre of two groups of hinge sets are equipped with piezoelectric actuator, two groups of hinges
Regulating mechanism, the end thereof contacts of the regulating mechanism and piezoelectric actuator is arranged in any one junction of group, and the piezoelectricity drives
Pressure sensor is arranged in the other end of dynamic device, and the rear end of the pressure sensor and another junction of two groups of hinge sets connect
Touching.
2. a kind of adjustable measuring device for measuring piezoelectric actuator load and output displacement simultaneously according to claim 1,
It is characterized by: two groups of hinge sets are connected by two vertical ends, and it is arranged in rectangle.
3. a kind of adjustable measurement dress for measuring piezoelectric actuator simultaneously and loading with output displacement according to claim 1 or 2
It sets, it is characterised in that: the flexible amplification mechanism is integrally formed setting.
4. a kind of adjustable measuring device for measuring piezoelectric actuator load and output displacement simultaneously according to claim 3,
It is characterized by: a right circular flexure hinge in any one group of hinge set extends outward to form fixing end, the fixing end with
Pedestal is fixedly connected.
5. a kind of adjustable measuring device for measuring piezoelectric actuator load and output displacement simultaneously according to claim 2,
It is characterized by: being equipped with sliding slot on the inside of any one vertical end, the regulating mechanism, which passes through vertical end and constitutes to slide with sliding slot, matches
It closes, and one end of the regulating mechanism is in contact with piezoelectric actuator.
6. the adjustable measurement that one kind described according to claim 1 or 2 or 5 measures piezoelectric actuator load and output displacement simultaneously
Device, it is characterised in that: the regulating mechanism includes adjusting screw and constitutes the adjusting block being linked, institute with adjusting screw
It states adjusting block and contacts setting with the piezoelectric actuator.
7. a kind of adjustable measuring device for measuring piezoelectric actuator load and output displacement simultaneously according to claim 6,
It is characterized by: being equipped with ball between the adjusting block and piezoelectric actuator.
8. a kind of adjustable measuring device for measuring piezoelectric actuator load and output displacement simultaneously according to claim 1,
It is characterized by: being fixed with dismountable firm banking on the bottom plate, the piezoelectric actuator is placed on the firm banking
On.
9. a kind of adjustable measuring device for measuring piezoelectric actuator load and output displacement simultaneously according to claim 8,
It is characterized by: the section of the firm banking is arc-shaped or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920129743.7U CN209459697U (en) | 2019-01-25 | 2019-01-25 | Adjustable measuring device that is a kind of while measuring piezoelectric actuator load and output displacement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920129743.7U CN209459697U (en) | 2019-01-25 | 2019-01-25 | Adjustable measuring device that is a kind of while measuring piezoelectric actuator load and output displacement |
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| Publication Number | Publication Date |
|---|---|
| CN209459697U true CN209459697U (en) | 2019-10-01 |
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| CN201920129743.7U Expired - Fee Related CN209459697U (en) | 2019-01-25 | 2019-01-25 | Adjustable measuring device that is a kind of while measuring piezoelectric actuator load and output displacement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655112A (en) * | 2019-01-25 | 2019-04-19 | 嘉兴学院 | Adjustable measuring device that is a kind of while measuring piezoelectric actuator load and output displacement |
-
2019
- 2019-01-25 CN CN201920129743.7U patent/CN209459697U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109655112A (en) * | 2019-01-25 | 2019-04-19 | 嘉兴学院 | Adjustable measuring device that is a kind of while measuring piezoelectric actuator load and output displacement |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191001 Termination date: 20210125 |
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| CF01 | Termination of patent right due to non-payment of annual fee |