CN112657813A - Self-repairing device based on ultrasonic metal flaw detection - Google Patents
Self-repairing device based on ultrasonic metal flaw detection Download PDFInfo
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- CN112657813A CN112657813A CN202011514510.2A CN202011514510A CN112657813A CN 112657813 A CN112657813 A CN 112657813A CN 202011514510 A CN202011514510 A CN 202011514510A CN 112657813 A CN112657813 A CN 112657813A
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- repair
- flaw detection
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- 238000001514 detection method Methods 0.000 title claims abstract description 39
- 239000002184 metal Substances 0.000 title claims abstract description 39
- 239000000523 sample Substances 0.000 claims abstract description 42
- 239000003292 glue Substances 0.000 claims abstract description 18
- 230000007547 defect Effects 0.000 claims abstract description 13
- 239000007921 spray Substances 0.000 claims abstract description 11
- 238000004372 laser cladding Methods 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 7
- 239000013078 crystal Substances 0.000 claims description 13
- 239000000853 adhesive Substances 0.000 claims description 10
- 230000001070 adhesive effect Effects 0.000 claims description 10
- 239000000919 ceramic Substances 0.000 claims description 9
- 239000000758 substrate Substances 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000000565 sealant Substances 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 6
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000002592 echocardiography Methods 0.000 abstract 1
- 238000005507 spraying Methods 0.000 description 5
- 238000005498 polishing Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000001028 reflection method Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
本发明公开了一种基于超声波金属探伤自修复装置，由扫描装置、信号接收装置、反馈装置、预警装置、计时器、微型电机、控制电路板、金属修补胶喷管、第一倾斜超声探头、第二倾斜超声探头、底座、打磨清扫装置、激光熔覆探头、导轨组成。扫描装置驱动第一倾斜超声探头产生高频超声波倾斜射入金属试件，经缺陷产生回波，信号接收装置对回波信号处理，控制电路板驱动预警装置预警，反馈装置根据回波信号损失量控制金属修补胶喷管喷射金属修补胶，实现超声波探伤检测和自修复。本发明提供了一种基于超声波金属探伤自修复装置，具有灵敏度高、可调控、安全稳定、仅消耗检测探头等优点，对于金属管道表面缺陷探伤和修复具有良好应用前景。
The invention discloses a self-repairing device based on ultrasonic metal flaw detection. The second inclined ultrasonic probe is composed of a base, a grinding and cleaning device, a laser cladding probe and a guide rail. The scanning device drives the first inclined ultrasonic probe to generate high-frequency ultrasonic waves that are obliquely injected into the metal specimen, and echoes are generated by the defect. The signal receiving device processes the echo signal, and controls the circuit board to drive the early warning device for early warning. The feedback device is based on the loss of the echo signal. Control the metal repair glue nozzle to spray metal repair glue to realize ultrasonic flaw detection and self-repair. The invention provides a self-repairing device based on ultrasonic metal flaw detection, which has the advantages of high sensitivity, controllability, safety and stability, only consumption of detection probes, etc., and has good application prospects for flaw detection and repair of metal pipeline surface defects.
Description
Technical Field
The invention belongs to the field of ultrasonic flaw detection and repair devices, and particularly relates to a metal flaw detection self-repair device based on ultrasonic waves.
Background
In the 20 th century, researchers proposed that the piezoelectric effect is used to generate a vibration source to detect the internal defects of the pipeline and study the detection mechanism thereof, and provided a possible development direction for the defect detection and maintenance of the pipeline, but the detection is not practical due to the technical difficulty at that time.
The beginning of 1948 of the inspection of metal materials by acoustic pulse reflection method has promoted the development of ultrasonic inspection, and with the rise of radio electronics, especially the development of radar technology and hydro-acoustics, it has become possible to use ultrasonic waves for metal inspection and repair.
Disclosure of Invention
Aiming at the defects of low detection sensitivity, lack of a high-efficiency self-filling and repairing method, long detection time period and the like in the existing method, the invention aims to take ultrasonic flaw detection nondestructive detection as a basis, use a high-performance low-power-consumption embedded single chip microcomputer as a control circuit board, perform data processing including signal compensation amplification and quantization coding on echo signals which are collected by a receiving device and carry defect information, and control the speed of spraying metal repair adhesive by a metal repair adhesive spraying pipe and detecting by a first inclined ultrasonic probe by a feedback device so as to realize defect detection and self-repairing of a piece to be detected.
The invention is realized by the following technical scheme: a metal flaw detection self-repairing device based on ultrasonic waves is composed of a scanning device, a signal receiving device, a feedback device, an early warning device, a timer, a micro motor, a control circuit board, a metal repair glue spraying pipe, a first inclined ultrasonic probe, a second inclined ultrasonic probe, a base, a polishing and cleaning device, a laser cladding probe and a guide rail; the method is characterized in that: the first inclined ultrasonic probe comprises a shell, a ceramic substrate, a piezoelectric crystal, an electrode, a control circuit line and a fixing plate; the ceramic substrate is fixed at the bottom of the shell by sealing glue, the piezoelectric crystal is fixed above the ceramic substrate by sealing glue, the electrode is positioned on the upper side of the piezoelectric crystal close to one side of the shell, the control circuit line is connected with the piezoelectric crystal and is arranged in the fixed plate, and the inside of the whole shell is filled with nitrogen; the first inclined ultrasonic probe and the second inclined ultrasonic probe are fixed on two sides below the base and are placed on the same horizontal line, the scanning device controls the first inclined ultrasonic probe to continuously scan, the signal receiving device continuously receives echo signals collected by the second inclined ultrasonic probe, the signal receiving device is connected with the feedback device, the feedback device receives control signals to drive the micro motor to control the metal repair adhesive spray pipe to spray metal repair adhesive, the laser cladding probe emits laser beams to heat the metal repair adhesive, the early warning device performs early warning at the same time, the timer displays detection time, the polishing and cleaning device polishes and cleans a repair area, and the control circuit board monitors the starting and stopping of each device to realize ultrasonic flaw detection and self-repairing.
The connecting structure is a wire which is packaged and is used for connecting each device and transmitting signals for control.
The working principle of the invention is as follows: the first inclined ultrasonic probe transmits high-frequency ultrasonic pulses to the surface of an object to be detected and transmits the high-frequency ultrasonic pulses in the object, the high-frequency ultrasonic pulses are reflected to the signal receiving device when reaching the boundary surface between the object and the outside, attenuated echo signals are generated when the object to be detected has defects, the scanning device drives the first inclined ultrasonic probe to continuously detect, meanwhile, the signal receiving device carries out signal processing on the echo signals and accurately judges the defect position, and the feedback device controls the metal repairing glue spraying pipe to spray metal repairing glue according to the attenuation amount, so that the defect detection and self-repairing of the object to be detected are realized.
The invention has the beneficial effects that: based on ultrasonic flaw detection nondestructive detection, an embedded single chip microcomputer with high performance and low power consumption is utilized to perform signal processing including signal compensation amplification and quantitative coding on echo signals collected by a signal receiving device, a feedback device is used for controlling the detection speed of a metal repairing glue spray pipe for spraying metal repairing glue and a first inclined ultrasonic probe, a defect signal is detected to reduce the detection speed of the first inclined ultrasonic probe, the defect detection and self-repair of a piece to be detected are realized, the detection process is high in sensitivity, adjustable, safe and stable, simple to operate and only consumes a coupling agent and the detection probe.
Drawings
FIG. 1 is a diagram of an apparatus for ultrasonic metal flaw detection and self-repair.
FIG. 2 is a schematic diagram of the internal structure of a first tilted ultrasonic probe based on an ultrasonic metal flaw detection and self-repair device.
FIG. 3 is a partial signal processing flow chart of an ultrasonic metal flaw detection and self-repair device.
Detailed Description
As shown in fig. 1, the ultrasonic-based metal flaw detection self-repairing device is composed of a scanning device 1, a signal receiving device 2, a feedback device 3, an early warning device 4, a timer 5, a micro motor 6, a control circuit board 7, a metal repair glue spray pipe 8, a first inclined ultrasonic probe 9, a second inclined ultrasonic probe 10, a base 11, a polishing and cleaning device 12, a laser cladding probe 13 and a guide rail 14; the method is characterized in that: the first inclined ultrasonic probe 9 includes a housing 901, a ceramic substrate 902, a piezoelectric crystal 903, an electrode 904, a control circuit line 905, and a fixing plate 906; the ceramic substrate 902 is fixed at the bottom of the shell 901 by sealing glue, the piezoelectric crystal 903 is fixed above the ceramic substrate 902 by sealing glue, the electrode 904 is positioned at the upper side of the piezoelectric crystal 903 close to one side of the shell 901, the control circuit line 905 is connected with the piezoelectric crystal 903 and is arranged in the fixing plate 906, and the inside of the whole shell 901 is filled with nitrogen; the first inclined ultrasonic probe 9 and the second inclined ultrasonic probe 10 are fixed on two sides below the base 11 and are placed on the same horizontal line, the scanning device 1 controls the first inclined ultrasonic probe 9 to continuously scan, the signal receiving device 2 continuously receives echo signals 15 collected by the second inclined ultrasonic probe 10, the signal receiving device 2 is connected with the feedback device 3, the feedback device 3 receives control signals 21 and drives the micro motor 6 to control the metal repair adhesive spray pipe 8 to spray metal repair adhesive, the laser cladding probe 13 emits laser beams to heat the metal repair adhesive, meanwhile, the early warning device 4 gives an early warning, the timer 5 displays detection time, the polishing and cleaning device 12 polishes and cleans a repair area, and the control circuit board 7 monitors the starting and stopping of each device to realize ultrasonic flaw detection and self repair.
The specific model of the timer is SC100 EX.
The specific model of the micro motor is PC-GM10F-1012 VA-06181-171.
The control circuit board adopts the concrete model of STM32 singlechip to be STM32F103C8T 6.
The specific material of the metal repairing adhesive is TX8528 oil surface repairing agent.
The specific model of the laser cladding probe is zksx-c80n 100.
As shown in fig. 2, a control circuit line 905 drives a piezoelectric crystal 903 to emit high-frequency ultrasonic waves, an electrode 904 provides an alternating-current excitation current for a resonance circuit, and the whole casing 901 is filled with nitrogen.
As shown in fig. 3, the signal receiving apparatus 2 outputs a control signal 21 from the detected echo signal 15 via the filter shaping circuit 16, the signal loss compensation circuit 17, the differential amplifier circuit 18, the quantization encoder 19, and the signal feedback circuit 20.
Claims (2)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011514510.2A CN112657813A (en) | 2020-12-21 | 2020-12-21 | Self-repairing device based on ultrasonic metal flaw detection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011514510.2A CN112657813A (en) | 2020-12-21 | 2020-12-21 | Self-repairing device based on ultrasonic metal flaw detection |
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| CN112657813A true CN112657813A (en) | 2021-04-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114216966A (en) * | 2021-12-15 | 2022-03-22 | 江苏省特种设备安全监督检验研究院 | A kind of ultrasonic testing auxiliary device suitable for crane |
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| CN105784849A (en) * | 2016-04-15 | 2016-07-20 | 江苏省特种设备安全监督检验研究院 | Novel graphene ultrasonic probe |
| CN109709210A (en) * | 2018-12-25 | 2019-05-03 | 深圳市深科工程检测有限公司 | A kind of ultrasonic examination detection method and the failure detector using this method |
| CN109752460A (en) * | 2019-01-16 | 2019-05-14 | 中国人民解放军陆军装甲兵学院 | A kind of deep and long hole pipe type element visualization ultrasonic no damage detection device and method |
| CN111633519A (en) * | 2020-06-16 | 2020-09-08 | 姚政 | A shaft mold surface flaw detection and repair device and using method |
| CN215465833U (en) * | 2020-12-21 | 2022-01-11 | 中国计量大学 | Self-repairing device based on ultrasonic metal flaw detection |
-
2020
- 2020-12-21 CN CN202011514510.2A patent/CN112657813A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105784849A (en) * | 2016-04-15 | 2016-07-20 | 江苏省特种设备安全监督检验研究院 | Novel graphene ultrasonic probe |
| CN109709210A (en) * | 2018-12-25 | 2019-05-03 | 深圳市深科工程检测有限公司 | A kind of ultrasonic examination detection method and the failure detector using this method |
| CN109752460A (en) * | 2019-01-16 | 2019-05-14 | 中国人民解放军陆军装甲兵学院 | A kind of deep and long hole pipe type element visualization ultrasonic no damage detection device and method |
| CN111633519A (en) * | 2020-06-16 | 2020-09-08 | 姚政 | A shaft mold surface flaw detection and repair device and using method |
| CN215465833U (en) * | 2020-12-21 | 2022-01-11 | 中国计量大学 | Self-repairing device based on ultrasonic metal flaw detection |
Non-Patent Citations (1)
| Title |
|---|
| 王全先: "《机械设备故障诊断技术》", 30 September 2013, 华中科技大学出版社, pages: 134 - 136 * |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114216966A (en) * | 2021-12-15 | 2022-03-22 | 江苏省特种设备安全监督检验研究院 | A kind of ultrasonic testing auxiliary device suitable for crane |
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Application publication date: 20210416 |
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