CN205982180U - Electromagnetic acoustic automatic flaw detection device - Google Patents
Electromagnetic acoustic automatic flaw detection device Download PDFInfo
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- CN205982180U CN205982180U CN201620984334.1U CN201620984334U CN205982180U CN 205982180 U CN205982180 U CN 205982180U CN 201620984334 U CN201620984334 U CN 201620984334U CN 205982180 U CN205982180 U CN 205982180U
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- electromagnetic acoustic
- head
- flaw detection
- detection device
- automatic flaw
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Abstract
The utility model provides an electromagnetic acoustic automatic flaw detection device, installs electromagnetic acoustic transducer and measuring control circuit system in the probe cover including the cover of popping one's head in, and the electromagnetic acoustic transducer afterbody has connect the rack, and the rack is driven the back by the gear under the servo motor drive, and steerable electromagnetic acoustic transducer is flexible in the sensing passageway that the probe covers, the head of finding range in addition in the probe cover, range finding head can perception probe cover with the sensor of the workpiece surface distance that awaits measuring, the range signal that the sensor recorded is detected the control circuit system and is received to servo motor control's rotation, thus the distance that realizes electromagnetic acoustic transducer and the workpiece surface that awaits measuring has been solved that manual to grip the detection that brings undulant by automatic control.
Description
Technical field
This utility model is related to testing of materials analysis field, and more particularly, to one kind is used for electromagnetic acoustic automatic flaw detection device.
Background technology
Existing electromagnetic supersonic detection device is the important method of material Non-Destructive Testing, for production assurance, important
Device element safe operation ensures and plays highly important effect, for electromagnetic acoustic transducing used in electromagnetic acoustic detection
Device and the corresponding technology also comparative maturity detecting control circuit.It is according to magnetostrictive effect principle, since magnetic field can be drawn
Play the deformation of ferrimagnet microstructure.If alternating magnetic field is applied to ferrimagnet.Alternating magnetic field will make it periodically
Deformation, and the deformation of microstructure just makes it produce vibration.Vibration just can be with excitation ultrasound ripple.Therefore, it can to ferromagnetism material
Material applies high-frequency alternating magnetic field.Make its periodicity stretching vibration, thus inspiring ultrasound wave.By dividing to the collection of ultrasound wave
Analysis, finds the material crack corresponding to mutation waveform, realizes nondestructive inspection.Sensor using this principle design surpasses electromagnetism
Sonic transducer (EMAT).
In use, existing equipment will with the distance between the workpiece for measurement of magnetic conductive material size for electromagnet ultrasonic changer
Large effect is only to the waveform of sensor capture, generally needs to ensure electromagnet ultrasonic changer and workpiece for measurement table
Face is in 2 distances arriving 5mm, but man-hour manually hand-held electromagnet ultrasonic changer detection workpiece just cannot ensure this point.To large-scale pressure-bearing
Equipment, such as：When station boiler, petrochemical industry, refinery device etc. implement to shut down internal inspection, because structure, inner space are limited, using people
The mode of work hand hold transducer cannot effectively carry out electromagnetic supersonic flaw detecting to parts such as the bank of tubes with bending curve, more cannot ensure
Electromagnet ultrasonic changer and workpiece for measurement surface are in 2 distances arriving 5mm.
Utility model content
In order to solve prior art problem, a kind of electromagnetism being capable of self adaptation surface of the work curve of design surpasses this utility model
Sound automatic flaw detection device.
The technical solution of the utility model is：A kind of electromagnetic acoustic automatic flaw detection device, including probe cover, is arranged on probe
Electromagnet ultrasonic changer in cover and detection control circuit system, electromagnet ultrasonic changer afterbody is connected to tooth bar, and tooth bar is by servo
After gear driven under Motor drive, controllable electromagnet ultrasonic changer is flexible in the sensing passage of probe cover；In probe cover
Also has range finding head, range finding head can perceive probe cover and workpiece for measurement surface distance, the tested observing and controlling of distance signal that range finding head records
Circuits System processed receives, and controls the rotation of described servomotor.
As a kind of preferred, the compression spring that head of finding range includes being arranged in elastic cavity, the contact of compression spring bottom
Head, and the slip variable resistance that touched head drives.
As one kind preferably, find range head including the compression spring being arranged in elastic cavity, compression spring bottom
Laser ranging probe in contact head and probe cover.
As one kind preferably, the cooperation of this device is arranged on detection bed, and described detection bed includes mobile platform, is arranged on
Clamping device on mobile platform.
As one kind preferably, mobile platform is XY twin shaft mobile platform.
As a kind of preferred, clamping device also has rotary apparatuss.
In sum, the beneficial effects of the utility model are：
1st, range finding head can perceive probe cover and workpiece for measurement surface distance, and the distance signal recording is detected control circuit system
System receives, and controls the rotation of described servomotor, thus realizing the distance quilt of electromagnet ultrasonic changer and workpiece for measurement surface
Automatically control, solve the detection fluctuation that manual grip brings.
2nd, device cooperation is arranged on the detection bed with mobile platform, can achieve for large-scale plane workpiece for measurement from
Dynamicization Scanning Detction, clamping device also has rotary apparatuss tubular productss can be carried out with Non-Destructive Testing, realizes automatically rolling.
Brief description
Fig. 1 is a kind of schematic diagram of embodiment of this utility model；
Fig. 2 is a kind of embodiment schematic diagram being furnished with mobile platform of this utility model.
Specific embodiment
As shown in Figure 1：A kind of electromagnetic acoustic automatic flaw detection device, including probe cover 10, is arranged on the electricity in probe cover 10
Magnetic ultrasonic transducer 15 and detection control circuit system 19, electromagnet ultrasonic changer 15 afterbody is connected to tooth bar 16, described tooth bar
16 driven by servomotor 18 under gear 17 drive after, controllable electromagnet ultrasonic changer 15 is in the sensing passage of probe cover 10
Flexible in 14；Also has range finding head, range finding head is to perceive probe cover and workpiece for measurement surface distance, and sensor is surveyed in probe cover 10
The distance signal obtaining is detected control circuit system and receives, and in embodiment, range finding head includes the compression being arranged in elastic cavity 11
Spring 12, the contact head 13 of compression spring 12 bottom, and the slip variable resistance of touched 13 drives.Compression spring 12 bottom
Contact head 13 be close to the surface of workpiece for measurement under the tension force of compression spring 12, contact head 13 is flexible in elastic cavity 11
It is equivalent that distance is that the voltage signal producing after resistance variations on the slip variable resistance that contact head 13 drives comes.This distance signal
After passing to detection control circuit system 19, by software programming, by the translational speed of workpiece for measurement 3 or the mobile speed of device
Degree integrates the spacing between range finding head and electromagnet ultrasonic changer 15, provides certain delay control signal and controls servomotor 18
Rotation.The height and position on so surface of workpiece for measurement 3 that range finding head records just can wait until that electromagnet ultrasonic changer 15 is mobile
During to this position, controlled by the driving structure of gear 17 and tooth bar 16 flexible, realize electromagnet ultrasonic changer 15 and workpiece for measurement 3
The height gap on surface be maintained in the efficient working range of 2 ~ 5mm.
Additionally, variable variable resistance of sliding can also be substituted for laser ranging probe costly by range finding head.Laser ranging is visited
Head, is the instrument that using laser, the distance of target is carried out with Accurate Determining.Laser range finder operationally projects a branch of to target
Very thin laser, is received the laser beam of target reflection by photoelectric cell, and timer measures laser beam from the time being transmitted into reception,
Calculate from observer's range-to-go.
When workpiece for measurement is not easy to mobile, when checking using this device hand-held, range finding head and electromagnetic acoustic can be ignored
Spacing between transducer 15, therefore the distance value that range finding head records directly controls the flexible of electromagnet ultrasonic changer 15.
And when realizing Aulomatizeted Detect, as long as allowing velocity amplitude to be set in detection control circuit system 19, and arrange in pairs or groups one
Mobile platform is just permissible.As shown in Fig. 2 this device passes through support 2 cooperation being arranged on detection bed, detection bed includes mobile platform
20, it is arranged on the clamping device 21 on mobile platform 20.Mobile platform is common XY twin shaft mobile platform, this mobile platform 20
Driven by the gear 24 that the motion motor 25 of bottom drives.It is contemplated that the tubulose that often runs into or circle during flaw detection in embodiment
Cylindrical workpiece, clamping device 21 also has rotary apparatuss, and this rotary apparatus is electric rotating machine 22 and the reduction gearing 23 matching.
So, when the workpiece for measurement that workpiece for measurement 3 is peripheral curved type, just can be with the reality of automatization by the rotation of electric rotating machine 22
Existing, using electromagnet ultrasonic changer 15, workpiece for measurement is carried out with 360 degree of flaw detection.The raising of flaw detection efficiency is obvious.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have been shown and described above.One's own profession
The technical staff of industry it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model also can
There are various changes and modifications, these changes and improvements both fall within the range of claimed this utility model.This utility model will
Protection domain is asked to be defined by appending claims and its equivalent.
Claims (6)
1. a kind of electromagnetic acoustic automatic flaw detection device, including probe cover, is arranged on the electromagnet ultrasonic changer in probe cover and inspection
, it is characterised in that described electromagnet ultrasonic changer afterbody is connected to tooth bar, described tooth bar is by servo electricity for observing and controlling Circuits System
After gear driven under machine driving, controllable electromagnet ultrasonic changer is flexible in the sensing passage of probe cover；Described probe
Also has range finding head, described range finding head can perceive probe cover and workpiece for measurement surface distance, the distance signal that range finding head records in cover
Detected control circuit system receives, and controls the rotation of described servomotor.
2. a kind of electromagnetic acoustic automatic flaw detection device according to claim 1 it is characterised in that：Described range finding head includes
It is arranged on the slip variable resistance that the compression spring in elastic cavity, the contact head of compression spring bottom, and touched head drive.
3. a kind of electromagnetic acoustic automatic flaw detection device according to claim 1 it is characterised in that：Described range finding head includes
Including the compression spring being arranged in elastic cavity, the laser ranging probe in the contact head and probe cover of compression spring bottom.
4. a kind of electromagnetic acoustic automatic flaw detection device according to claim 1 or 2 or 3 it is characterised in that：This device coordinates
It is arranged on detection bed, described detection bed includes mobile platform, is arranged on the clamping device on described mobile platform.
5. a kind of electromagnetic acoustic automatic flaw detection device according to claim 4 it is characterised in that：Described mobile platform is
XY twin shaft mobile platform.
6. a kind of electromagnetic acoustic automatic flaw detection device according to claim 4 it is characterised in that：On described clamping device
Also have rotary apparatuss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620984334.1U CN205982180U (en) | 2016-08-30 | 2016-08-30 | Electromagnetic acoustic automatic flaw detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620984334.1U CN205982180U (en) | 2016-08-30 | 2016-08-30 | Electromagnetic acoustic automatic flaw detection device |
Publications (1)
| Publication Number | Publication Date |
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| CN205982180U true CN205982180U (en) | 2017-02-22 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620984334.1U Active CN205982180U (en) | 2016-08-30 | 2016-08-30 | Electromagnetic acoustic automatic flaw detection device |
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| CN (1) | CN205982180U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560707A (en) * | 2016-08-30 | 2017-04-12 | 湖州市特种设备检测研究院 | Automatic electromagnetic ultrasonic flaw detection apparatus |
| CN107807174A (en) * | 2017-08-29 | 2018-03-16 | 浙江理工大学 | A kind of live spindle crack detection device based on elastic wave test |
| CN108445493A (en) * | 2018-03-16 | 2018-08-24 | 京东方科技集团股份有限公司 | Detection device and method out of stock and shelf |
-
2016
- 2016-08-30 CN CN201620984334.1U patent/CN205982180U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106560707A (en) * | 2016-08-30 | 2017-04-12 | 湖州市特种设备检测研究院 | Automatic electromagnetic ultrasonic flaw detection apparatus |
| CN107807174A (en) * | 2017-08-29 | 2018-03-16 | 浙江理工大学 | A kind of live spindle crack detection device based on elastic wave test |
| CN107807174B (en) * | 2017-08-29 | 2020-06-02 | 浙江理工大学 | Rotating spindle crack detection device based on elastic wave detection |
| CN108445493A (en) * | 2018-03-16 | 2018-08-24 | 京东方科技集团股份有限公司 | Detection device and method out of stock and shelf |
| US10743683B2 (en) | 2018-03-16 | 2020-08-18 | Boe Technology Group Co., Ltd. | Apparatus and method for detecting stock-out of articles on rack and rack |
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