CN103323458B - A kind of detection device, weld inspection system and weld inspection method - Google Patents
A kind of detection device, weld inspection system and weld inspection method Download PDFInfo
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- CN103323458B CN103323458B CN201310194426.0A CN201310194426A CN103323458B CN 103323458 B CN103323458 B CN 103323458B CN 201310194426 A CN201310194426 A CN 201310194426A CN 103323458 B CN103323458 B CN 103323458B
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Abstract
The present invention discloses a kind of detection device, comprise the eddy current signal probe for detecting weld seam internal soundness, described eddy current signal probe comprises magnetic core, be enclosed in the coil outside magnetic core, one end connects the eddy current signal joint of described coil, described detection device also comprises the video probe for detecting face of weld quality, and described video probe comprises video sensor, and one end connects the video sensor signal joint of described video sensor.This pick-up unit effectively can detect the inside and outside defect of weld seam, add the precision detecting weld defect, and this device reduces the impact of high temperature butt welded seam pick-up unit detection accuracy, and effectively prevent dust from entering detection device, improve the serviceable life of detection device.
Description
Technical field
The present invention relates to a kind of detection device, weld inspection system and weld inspection method, particularly relate to a kind of at high operating temperatures by the change measuring material electromagnetic performance to judge weld seam internal soundness and by the detection device of video observation face of weld quality, weld inspection system and weld inspection method.
Background technology
For ensureing band steel continuous seepage, move ahead band steel tail band and rear row band steel take the lead need be connected by welding method, the welding gear of cold mill complex configuration is mostly laser welder, laser bonding is different from traditional welding manner, there is heat-affected zone narrow, the features such as appearance of weld is good, but as welding technology controls improperly still to produce weld defects in weld seam, as undercut, pore, crackle etc., these weld defectss directly have influence on the life-span of roll, often can aggravate to be with steel to produce the occurrence frequency of broken belt accident when follow-up rolling, if there is broken belt situation will force unit interrupt run.Therefore, the quality of strip steel weld joint quality directly has influence on the stable operation of cold mill complex.By analyzing actual broken belt accident, most broken belt accident occurs in the commissure of band steel, and the reason producing this accident causes owing to being with the tension force in steel and the acting in conjunction of strip steel weld joint defect.Being determined by production technology with the tension force in steel, be satisfied band steel manufacturing technique requirent, the setting range of tension force is often very little.For preventing the generation of broken belt accident, reduce the weld defects of weld seam, not allowing the weld seam of excessive defect enter into milling train is a kind of effective method as far as possible.Therefore, weld seam detection technology becomes particularly important.
The device of on-line checkingi strip steel weld joint defect conventional is at present weld seam detection probe, weld seam detection probe detects the change of tested weld seam eddy current signal, then detection signal is transferred to treating apparatus to process, then passes to Computerized analysis system analysis.The pop one's head in inherent vice of only butt welded seam of this weld seam detection detects, if the outside existing defects of weld seam, this probe cannot detect.In addition, due to various Type of Welding, all to have temperature high, the feature that dust is large, the impact of temperature butt welded seam detection probe is very large, not only produced interference but also affected serviceable life of detection probe, dust is also very serious on the impact of probe, if dust enters, probe is inner can be had a strong impact on probe generation.
Summary of the invention
Fundamental purpose of the present invention is to provide a kind of detection device, and described detection device effectively can detect the inside and outside defect of weld seam, adds the precision detecting weld defect.
Another object of the present invention is to provide a kind of detection device, described detection device reduces the impact of high temperature on pick-up unit detection accuracy, and effectively prevents dust from entering pick-up unit, improves the serviceable life of pick-up unit.
Another object of the present invention is to provide a kind of weld inspection system, and described weld inspection system effectively can detect the inside and outside defect of weld seam, adds the precision detecting weld defect.
Another object of the present invention is to provide a kind of method detecting weld seam, and described weld inspection method effectively can detect the inside and outside defect of weld seam, adds the precision detecting weld defect.
For achieving the above object, the present invention adopts following technical scheme:
A kind of detection device, comprise the eddy current signal probe for detecting weld seam internal soundness, described eddy current signal probe comprises magnetic core, be enclosed in the coil outside magnetic core, one end connects the eddy current signal joint of described coil, described detection device also comprises the video probe for detecting face of weld quality, and described video probe comprises video sensor, and one end connects the video sensor signal joint of described video sensor.
Further, described detection device also comprises thermostable heat-conductive ceramic shield, and described eddy current signal probe and described video probe are arranged side by side in thermostable heat-conductive ceramic shield.
Further, described eddy current signal probe also comprises to be coated on and holds together magnetic cover outside described magnetic core and described coil, holds together outside magnetic cover and described thermostable heat-conductive ceramic shield described in the other end of described eddy current signal joint protrudes out.
Further, described video probe also comprises the anti-interference cover be coated on outside described video sensor, and described video sensor signal joint protrudes out outside described anti-interference cover and described thermostable heat-conductive ceramic shield.
Further, described detection device also comprises condensate water circulatory mechanism, and described condensate water circulatory mechanism is centered around around described eddy current signal probe and described video probe lowers the temperature.
A kind of weld inspection system, comprise detection device, control module, data acquisition module one, data acquisition module two, be embedded with the computing machine of analysis software, described control module judges the start time that weld seam welds and described control module connects described detection device, described detection device comprises video probe and eddy current signal probe, described video probe gathers the quality information of face of weld and is connected to described data acquisition module by a video sensor signal joint and in the lump the weldquality information of collection is sent to described data acquisition module one, described eddy current signal probe acquires weld seam internal soundness information is also connected to data acquisition module two by described eddy current signal joint and weldquality information is sent to described data acquisition module two, described data acquisition module one is connected described computing machine with described data acquisition module two and weldquality signal is sent to described computer disposal.
Further, described weld inspection system also comprises the welder interface module be connected with computing machine, and welding machine supplied materials information and welder parameter information are transferred to computing machine by described welder interface module.
Further, described weld inspection system also comprises the alarm module connecting described computing machine, and described alarm module receives and sends alerting signal from computing machine about the underproof information of welding quality inspection result.
Further, described weld inspection system also comprises the display module connecting described computing machine, described display module display weldquality information, and provides human-computer interaction interface so that order input.
A kind of weld inspection method, described weld inspection method realized by weld inspection system, described weld inspection system comprises detection device, control module, data acquisition module one, data acquisition module two, is embedded with the computing machine of analysis software, detection device comprises video probe and eddy current signal probe, and detecting step is:
Step (1) control module judges the start time that weld seam welds, and gives described video probe by the Signal transmissions of start time simultaneously;
Step (2) described video probe starts to detect face of weld pattern, described video probe by Real-time Collection to raw data carry out pre-service, and the data that pre-service is good are transferred to described data acquisition module one;
Step (3) described data acquisition module a pair real time data processes further, the data again handled well is transferred to described computing machine and comprehensively analyzes;
While step (4) described video probe starts to detect, described eddy current signal probe detects weld seam internal soundness in real time, and the data detected are transferred to described data acquisition module two;
Step (5) described data acquisition module two pairs of real time datas do further process, the data again handled well are transferred to described computing machine and comprehensively analyze.
Further, described weld inspection system also comprises the welder interface module be connected with described computing machine, and before step (1), welding machine supplied materials information and welder parameter information are transferred to described computing machine by described welder interface module.
Further, described weld inspection system also comprises the alarm module connecting computing machine, and after step (5), when described computing machine judges that weldquality result is defective, computer software sends instruction makes alarm module report to the police.
Further, described weld inspection system also comprises the display module connecting computing machine, and after step (5), described display module shows the evaluation result of butt welded seam quality in real time, when weldquality is defective, described display module provides human-computer interaction interface so that order input.
Compared to prior art, a kind of detection device of the present invention, be provided with eddy current signal that not only butt welded seam carries out Inner Defect Testing in weld inspection system and weld inspection method to pop one's head in but also butt welded seam carries out the video probe of External Defect detection, can complete detection and evaluate the mass defect of weld seam, add the precision detecting weld defect.In addition, in pick-up unit, be provided with thermostable heat-conductive ceramic shield, reduce the impact of high temperature on pick-up unit accuracy, effectively prevent dust to enter in pick-up unit, improve the serviceable life of detection system.Further, of the present invention hold together magnetic cover surface adopt cambered design, add area of dissipation, ensure that pick-up unit can detect at high operating temperatures.Pick-up unit is also provided with condensate water circulatory mechanism, and internal heat is taken away auxiliary heat dissipation by cold water in time, to ensure that pick-up unit at high temperature can normally work.
Accompanying drawing explanation
Fig. 1 is the working environment figure of detection device of the present invention.
Fig. 2 is the cut-open view of detection device of the present invention.
Fig. 3 is the front view that the present invention holds together magnetic cover surface.
Fig. 4 is the schematic perspective view of anti-interference cover of the present invention.
Fig. 5 is the block flow diagram of weld inspection method of the present invention.
description of reference numerals in above-mentioned accompanying drawing is as follows:
Weld seam 10 welding machine 20
Detection device 30 eddy current signal probe 40
Video probe 50 eddy current signal joint 1
Hold together magnetic cover 2 magnetic core 3
Coil 4 condensate water circulatory mechanism 5
Thermostable heat-conductive ceramic shield 6 video sensor signal joint 7
Anti-interference cover 8 video sensor 9
Data acquisition module 100 data acquisition module 200.
Embodiment
Refer to Fig. 1, the present invention utilizes laser welder 20 to weld between two band steel, thus defines weld seam 10.Detection device 30 and welding machine 20 are co-located on same mounting bracket (not shown), detection device 30 along with welding machine 20 moving and be synchronized with the movement in welded joints, thus the synchronous quality detecting weld seam whether defectiveness exists.Detection device 30 different welding manner visual apart from the distance of welding machine 20 and adjusting, in the present embodiment, detection device 30 is more than 0.8 meter apart from the distance of welding machine 20, produces interference to prevent welding gun to pick-up unit.Detection device 30 is 2-3 millimeter with the distance of weld seam 10.Mounting bracket adopts the high-temperature resistance plastice of high strength to make.
See also Fig. 1 and Fig. 2, detection device 30 of the present invention comprises a thermostable heat-conductive ceramic shield 6, eddy current signal probe 40 and video probe 50 are arranged side by side in thermostable heat-conductive ceramic shield 6, and condensate water circulatory mechanism 5 is centered around around eddy current signal probe 40 and video probe 50.
The sealing function of thermostable heat-conductive ceramic shield 6, both can play heat insulating function, can stop again the intrusion of dust.Eddy current signal probe is for detecting weld seam inherent vice, and video probe is for detecting face of weld defect.Condensate water circulatory mechanism 5 is ceaselessly in cycle operation, and the heat of detection device inside is taken away by cold water, and the water after heating is at external refrigeration, and water constantly circulates, auxiliary heat dissipation, makes detection device 30 keep optimum temperature state.
In the present embodiment, described eddy current signal probe 40 long 10 millimeters, wide 10 millimeters, high 18 millimeters, bottom distance detection device 30 1.68 millimeters.According to the depth information of steel band, described eddy current signal probe excitation frequency can regulate automatically, when steel band is thick be 2.6 millimeters time, frequency adjustment is 30kHz.
See also Fig. 1 to Fig. 3, described eddy current signal probe 40 comprises a magnetic core 3, coil 4 is enclosed in outside magnetic core 3, holds together magnetic cover 2 and is coated on outside magnetic core 3 and coil 4, hold together magnetic cover 2 and thermostable heat-conductive ceramic shield 6 described in eddy current signal joint 1 one end connecting coil 4 other end protrudes out.The external diameter of described magnetic core is 7.8 millimeters, is highly 16.8 millimeters, and material adopts high frequency NiZn ferrite material.Namely the length-diameter ratio of coil 4 is the length of coil and the ratio of radius, different according to concrete use occasion difference.Described hold together magnetic cover 2 surface for arcuate structure to increase area of dissipation, guarantee detection device can butt welded seam quality detect at high operating temperatures.Described hold together magnetic cover 2 both prevented external interference, again to magnetic field generation effect, the field form needed for acquisition, its size is determined depending on different welding method.The advantage of this eddy current signal probe is high temperature resistant, and detection sensitivity is high, and detection speed is less on its impact, suppresses Lift-off effect, and antijamming capability is strong, and signal to noise ratio (S/N ratio) is high.
Refer to Fig. 1, video probe 50 comprises a video sensor 9, and anti-interference cover 8 is coated on outside video sensor 9, and video sensor signal joint 7 protrudes out anti-interference cover 8 and thermostable heat-conductive ceramic shield 6.
Refer to Fig. 4, anti-interference cover 8 structure adopts reticulate texture, video sensor circuit effectively can be prevented the interference of eddy current sensor, make it to be independent of each other, and ensures the normal work of detection device.
Video sensor signal joint 7 connects outer signal line, and eddy current signal joint 1 connects outer signal line, and signal wire connects other signal processing apparatus.
When welding machine starts to weld, detection device 30 starts to detect weld defect information, namely video probe 50 detects face of weld topographical information, eddy current signal probe 40 detects weld seam inherent vice information, respectively by Signal connector, signal wire, gives other signal processing apparatus by the information transmission that detects.
Eddy current signal probe detects the defect of weld seam inside by the change measuring in weld seam eddy current of inducting, and when the waveform of eddy current signal changes greatly, the quality of weld seam is poor or defective.Article one, at the end of weld seam, the detection of probe stops automatically, intermittent working method, makes the serviceable life of probe more permanent, ensure that dependability and the service time of equipment.
Refer to Fig. 5, described detection device 30 is operated in weld inspection system, and described weld inspection system comprises: detection device 30, control module, data acquisition module 100, data acquisition module 200, the computing machine being embedded with analysis software, welder interface module, display module, alarm module.Detection device 30 comprises video probe and eddy current signal probe.
Wherein, controller in control module, the start time that weld seam welds is judged according to welding machine action, simultaneously by the Signal transmissions of this start time to video probe, video sensor in video probe starts to detect face of weld pattern, video probe by Real-time Collection to raw data carry out pre-service, and data good for pre-service are transferred to data acquisition module 100 by video sensor signal joint 7, data acquisition module 100 pairs of real time datas process further, and the data again handled well are transferred to computing machine by Ethernet.While video sensor starts to detect, high temperature resistant Eddy Current Testing Transducer in eddy current signal probe detects weld seam internal soundness in real time, eddy current signal probe is transferred to data acquisition module 200 to the data detected by eddy current signal joint 1, data acquisition module 200 pairs of real time datas do further process, send the data again handled well to computing machine by USB.Because computing machine connects welder interface module, so supplied materials information and welder parameter information are transferred to computing machine by interface module by welding machine simultaneously, now software effects on surface topographic data, inherent vice data and supplied materials information and welder parameter information are integrated, extract, evaluate by calling experts database system, by the real-time display surface pattern of display module, inherent vice situation, analytic curve, welding machine parameter, band steel parameter, causes of defects, evaluation result etc., when assessment result is defective, sending instruction makes alarm module carry out alarm.The analysis software of computing machine comprises experts database system, the experts database jointly set up by stretch test result, crooked experiment result, analog simulation result.When display module and alarm module provide prompting simultaneously, can be operated by the man-machine interactive interface of display module, operational order, by computing machine and welder interface module, can butt welding machine parameter adjust in time, thus operates the analysis software of computing machine and welding machine.
Claims (5)
1. a weld inspection system, it is characterized in that: comprise detection device, control module, data acquisition module one, data acquisition module two, be embedded with the computing machine of analysis software, described control module judges the start time that weld seam welds and described control module connects described detection device, described detection device comprises video probe and eddy current signal probe, described video probe gathers the quality information of face of weld and is connected to described data acquisition module by a video sensor signal joint and in the lump the weldquality information of collection is sent to described data acquisition module one, described eddy current signal probe acquires weld seam internal soundness information is also connected to data acquisition module two by described eddy current signal joint and weldquality information is sent to described data acquisition module two, described data acquisition module one is connected described computing machine with described data acquisition module two and weldquality signal is sent to described computer disposal, described weld inspection system also comprises the welder interface module be connected with computing machine, welding machine supplied materials information and welder parameter information are transferred to computing machine by described welder interface module, described weld inspection system also comprises the alarm module connecting described computing machine, described alarm module receives and sends alerting signal from computing machine about the underproof information of welding quality inspection result, described weld inspection system also comprises the display module connecting described computing machine, described display module display weldquality information, and provide human-computer interaction interface so that order input.
2. a weld inspection method, it is characterized in that: described weld inspection method realized by weld inspection system, described weld inspection system comprises detection device, control module, data acquisition module one, data acquisition module two, is embedded with the computing machine of analysis software, detection device comprises video probe and eddy current signal probe, and detecting step is:
Step (1) control module judges the start time that weld seam welds, and gives described video probe by the Signal transmissions of start time simultaneously;
Step (2) described video probe starts to detect face of weld pattern, described video probe by Real-time Collection to raw data carry out pre-service, and the data that pre-service is good are transferred to described data acquisition module one;
Step (3) described data acquisition module a pair real time data processes further, the data again handled well is transferred to described computing machine by Ethernet and comprehensively analyzes;
While step (4) described video probe starts to detect, described eddy current signal probe detects weld seam internal soundness in real time, and the data detected are transferred to described data acquisition module two;
Step (5) described data acquisition module two pairs of real time datas do further process, the data again handled well are transferred to described computing machine and comprehensively analyze.
3. a kind of weld inspection method as claimed in claim 2, it is characterized in that: described weld inspection system also comprises the welder interface module be connected with described computing machine, before step (1), welding machine supplied materials information and welder parameter information are transferred to described computing machine by described welder interface module.
4. a kind of weld inspection method as claimed in claim 2, it is characterized in that: described weld inspection system also comprises the alarm module connecting computing machine, after step (5), when described computing machine judges that weldquality result is defective, computer software sends instruction makes alarm module report to the police.
5. a kind of weld inspection method as claimed in claim 2, it is characterized in that: described weld inspection system also comprises the display module connecting computing machine, after step (5), described display module shows the evaluation result of butt welded seam quality in real time, when weldquality is defective, described display module provides human-computer interaction interface so that order input.
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103901098A (en) * | 2014-03-22 | 2014-07-02 | 国家电网公司 | Internal defect processing method for welded joint |
| CN104002054A (en) * | 2014-06-10 | 2014-08-27 | 昆山宝锦激光拼焊有限公司 | Automatic detection device of welding line welding quality |
| CN106198722B (en) * | 2016-06-28 | 2021-11-19 | 天津因科新创科技有限公司 | Method and device for detecting welding seam by pulse eddy current |
| CN106925924A (en) * | 2017-05-17 | 2017-07-07 | 山东双源印铁制罐有限公司 | A kind of weld seam applies outward benefit protection intensive |
| CN107515230A (en) * | 2017-10-17 | 2017-12-26 | 广东正业科技股份有限公司 | A kind of welding system and product inspection method |
| CN108204989A (en) * | 2017-12-27 | 2018-06-26 | 福建省永正工程质量检测有限公司 | A kind of construction steel structure detection device |
| CN111037062B (en) * | 2018-10-12 | 2021-04-13 | 哈尔滨工业大学 | Adaptive control and automatic visual inspection method for GTAW weld forming |
| CN111351845A (en) * | 2020-03-18 | 2020-06-30 | 南京理工大学 | Intelligent detection device based on pulse eddy current |
| CN111965250B (en) * | 2020-08-31 | 2022-06-21 | 爱德森（厦门）电子有限公司 | In-service rail weld joint high-temperature detection method and detection device thereof |
| CN116274422B (en) * | 2023-03-23 | 2023-12-01 | 首钢智新迁安电磁材料有限公司 | Method and device for detecting connecting weld joint |
| CN117269329B (en) * | 2023-11-21 | 2024-03-19 | 二重(镇江)重型装备有限责任公司 | Coarse-grain weld joint detection method and system based on ultrasonic phased array model |
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| US8217646B2 (en) * | 2008-10-17 | 2012-07-10 | Ge Inspection Technologies, Lp | Inspection apparatus for performing inspections |
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| CN200950135Y (en) * | 2006-09-27 | 2007-09-19 | 宝山钢铁股份有限公司 | Saturated magnetization device for eddy current inspection of heavy caliber steel tube |
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