CN207851108U - Three electrode piezoelectric ceramics piezo detecting tool improved structures - Google Patents
Three electrode piezoelectric ceramics piezo detecting tool improved structures Download PDFInfo
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- CN207851108U CN207851108U CN201721836291.3U CN201721836291U CN207851108U CN 207851108 U CN207851108 U CN 207851108U CN 201721836291 U CN201721836291 U CN 201721836291U CN 207851108 U CN207851108 U CN 207851108U
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- China
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- piezoelectric ceramics
- detecting tool
- copper sheathing
- ceramics piezo
- reference test
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Abstract
The utility model discloses a kind of three electrode piezoelectric ceramics piezo detecting tool improved structures, belong to piezoelectric ceramics piezo detecting tool；Be intended to provide it is a kind of it is simple in structure, easy to operate, detection efficiency is high, accuracy is good, reliable clamping piezoelectric ceramics piezo detecting tool.It includes detection device, the fixation reference test bar being electrically connected with the detection device and movable reference test bar；Movable reference test bar（6）Testing needle（7）On the copper sheathing contacted is installed（8）, the end face of the copper sheathing is evenly distributed with multiple test tooth heads being serrated, copper sheathing（8）Length be more than testing needle（7）Length.The utility model not only completely eliminates the defect of traditional tooling detection erroneous judgement, misjudgement, but also also avoids readjusting trouble caused by the location of workpiece, improves work efficiency；The concentricity for also reducing two detection bars simultaneously requires, improves clamping stability.It is a kind of piezoelectric ceramics piezo detecting tool improved structure.
Description
Technical field
The utility model is related to a kind of piezoelectric ceramics piezo detecting tools, more particularly to a kind of three electrode piezoelectric ceramics bees
Ring piece detecting tool improved structure.
Background technology
For a long time, piezoelectric ceramics piezo detecting tool usually by the fixation reference test bar that is electrically connected with detection device and
Movable reference test bar is constituted.Piezoelectric ceramics piezo need to only be held out against with two reference test bars, be powered when detection；It is very convenient fast
It is prompt.
But three electrode piezoelectric ceramics piezo are made of main electrode, feedback electrode, metal plate electrode, according to above-mentioned tradition
Test fixture is detected it, then is likely to occur erroneous judgement, misjudgement.Because when movable testing needle and feedback electrode or feedback electricity
When the separator bar of pole and main electrode contacts, then will appear piezo pronunciation it is small or not sounding the case where, be unable to accurate judgement problem.
Thus, it usually needs the position for readjusting piezo makes testing needle be contacted with main electrode face；The labour for increasing operator is strong
It spends, reduce testing efficiency and accuracy.
In addition, since traditional detection tooling uses the top tight workpiece of two testing needles（Piezo）, therefore test two
The concentricity of needle is more demanding；When especially occurring abrasion loosening when movable reference test bar because of long-time service, it is necessary to often replace
Movable reference test bar, no person are difficult to fix workpiece pre-tightening.
Invention content
In view of the above defects of the prior art, the utility model be intended to provide it is a kind of it is simple in structure, easy to operate,
Detection efficiency is high, accuracy is good, reliable clamping three electrodes piezoelectric ceramics piezo detecting tool improved structure.
To achieve the goals above, the utility model uses following technical scheme：It includes detection device, is filled with the detection
Set the fixation reference test bar of electrical connection and movable reference test bar；The copper sheathing contacted is installed on the testing needle of movable reference test bar, it should
The end face of copper sheathing is evenly distributed with multiple test tooth heads being serrated, and the length of copper sheathing is more than the length of testing needle.
The both ends of the surface of copper sheathing are distributed with multiple test tooth heads.
Compared with the prior art, the utility model by adopting the above-described technical solution, movable reference test bar testing needle
On be mounted with copper sheathing and opened up multiple test tooth heads in the end face of copper sheathing；Therefore it can ensure at least one test tooth head
It is kept in contact with main electrode, not only completely eliminates the defect of traditional tooling detection erroneous judgement, misjudgement, but also also avoid adjusting again
Whole workpiece（Piezo）Trouble caused by position improves work efficiency.It, can be in addition, use above-mentioned improved structure
Increase the contact area of activity detection bar and workpiece（One point contact is changed to Multi-contact）, can not only reduce the coaxial of two detection bars
Degree requires, and also improves clamping stability.
Description of the drawings
Fig. 1 is the structural schematic diagram of three electrode piezoelectric ceramics piezo；
Fig. 2 is the structural schematic diagram of the utility model.
In figure：Metal plate electrode 1, main electrode 2, fixed test bar 3, detection device 4, feedback electrode 5, dynamic reference test bar 6, test
Needle 7, copper sheathing 8.
Specific implementation mode
The utility model is described in further detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in Figure 1：Three electrode piezoelectric ceramics piezo by be fixed on metal plate electrode 1 piezoelectric ceramic piece, covering
It is constituted in the main electrode 2 and feedback electrode 5 of the piezoelectric ceramics on piece.When detection, need to apply in metal plate electrode 1, main electrode 2
Making alive.
As shown in Figure 2：It fixes reference test bar 3 and carries spring（It is not indicated in figure）Movable reference test bar 6 respectively with inspection
It surveys device 4 to be electrically connected, is set with copper sheathing 8 in a manner of tight fit on the testing needle 7 of movable reference test bar 6, the end face of the copper sheathing is equal
Even that multiple test tooth heads being serrated are distributed with, the length of copper sheathing 8 is more than the length of testing needle 7.
For ease of use, and extend the service life of copper sheathing 8, it is in sawtooth that the both ends of the surface of copper sheathing 8, which are distributed with multiple,
The test tooth head of shape.
From Fig. 1,2 as can be seen that since the area of copper sheathing 8 is far longer than the needle point area of testing needle 7, can ensure
At least one described test tooth head is kept in contact with main electrode 2 always；Thoroughly overcome the testing needle 7 and feedback of traditional structure
Electrode 5 contacts, or causes to make a sound when contacting with feedback electrode 5,2 separator bar of main electrode, eliminates misjudgement, accidentally
The defect sentenced.In addition, due to increasing copper sheathing 8, movable reference test bar 6 is increased and by the contact area in silver-colored face；Therefore clamping work
Part is more convenient, and the concentricity for reducing two reference test bars requires, improves clamping stability.
Claims (2)
1. a kind of three electrode piezoelectric ceramics piezo detecting tool improved structures, including detection device, it is electrically connected with the detection device
The fixation reference test bar and movable reference test bar connect；It is characterized in that：Movable reference test bar（6）Testing needle（7）On be equipped with and connect therewith
Tactile copper sheathing（8）, the end face of the copper sheathing is evenly distributed with multiple test tooth heads being serrated, copper sheathing（8）Length be more than survey
Test point（7）Length.
2. three electrodes piezoelectric ceramics piezo detecting tool improved structure according to claim 1, it is characterised in that：Copper sheathing
（8）Both ends of the surface be distributed with multiple test tooth heads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721836291.3U CN207851108U (en) | 2017-12-25 | 2017-12-25 | Three electrode piezoelectric ceramics piezo detecting tool improved structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721836291.3U CN207851108U (en) | 2017-12-25 | 2017-12-25 | Three electrode piezoelectric ceramics piezo detecting tool improved structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207851108U true CN207851108U (en) | 2018-09-11 |
Family
ID=63418461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721836291.3U Active CN207851108U (en) | 2017-12-25 | 2017-12-25 | Three electrode piezoelectric ceramics piezo detecting tool improved structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207851108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112277493A (en) * | 2020-10-28 | 2021-01-29 | 中科传感技术(青岛)研究院 | Transfer printing method for bottom electrode of multilayer piezoelectric ceramic piece |
-
2017
- 2017-12-25 CN CN201721836291.3U patent/CN207851108U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112277493A (en) * | 2020-10-28 | 2021-01-29 | 中科传感技术(青岛)研究院 | Transfer printing method for bottom electrode of multilayer piezoelectric ceramic piece |
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