CN110749652A - TOFD flaw detection auxiliary device and using method thereof - Google Patents
TOFD flaw detection auxiliary device and using method thereof Download PDFInfo
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- CN110749652A CN110749652A CN201911125139.8A CN201911125139A CN110749652A CN 110749652 A CN110749652 A CN 110749652A CN 201911125139 A CN201911125139 A CN 201911125139A CN 110749652 A CN110749652 A CN 110749652A
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- 238000001514 detection method Methods 0.000 title claims abstract description 62
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 239000007788 liquid Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 238000003466 welding Methods 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000003028 elevating effect Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims 3
- 230000008569 process Effects 0.000 description 8
- 230000007547 defect Effects 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- 230000009467 reduction Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 239000012089 stop solution Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/04—Analysing solids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/22—Details, e.g. general constructional or apparatus details
- G01N29/225—Supports, positioning or alignment in moving situation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/02—Indexing codes associated with the analysed material
- G01N2291/023—Solids
- G01N2291/0234—Metals, e.g. steel
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2291/00—Indexing codes associated with group G01N29/00
- G01N2291/26—Scanned objects
- G01N2291/267—Welds
- G01N2291/2675—Seam, butt welding
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- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Acoustics & Sound (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention discloses a TOFD flaw detection auxiliary device and a using method thereof.A working box is arranged above an electric travelling mechanism, an electric lifting mechanism is connected above the working box, a linear slide rail assembly is fixed above the electric lifting mechanism, and a TOFD scanning and adjusting device is arranged above the linear slide rail assembly. A, adding liquid into a working box for detection, and roughly adjusting the detection position by operating an automatic travelling mechanism and an automatic lifting mechanism; B. and observing whether the detected signal is clear and stable, and if the detected signal does not meet the detection requirement, finishing fine adjustment of the detection position by adjusting the TOFD scanning and adjusting device to obtain a clear and stable detection signal. The TOFD flaw detection auxiliary device and the TOFD flaw detection auxiliary method greatly reduce the labor use cost, and greatly reduce the labor intensity of detection through the use of various automatic components.
Description
Technical Field
The invention relates to a defect flaw detection auxiliary device and a using method thereof, in particular to an auxiliary device for TOFD flaw detection and a using method thereof.
Background
TOFD (time Of Flight diffraction) ultrasonic diffraction time difference method is a method for detecting defects by means Of diffraction energy obtained from the 'end angle' and 'end point' Of the internal structure (mainly referring to defects) Of a test piece to be detected, and is used for detecting, quantifying and positioning the defects.
TOFD is widely applied in the aspect of nondestructive testing technology, but the method has certain defects in the actual use process, different-height building platforms are required for flaw detection (such as weld joint detection) work at different heights, the height and the position of the TOFD detection device are manually adjusted, the adjustment process is complex, the detection efficiency is low, the labor intensity is high in the detection process, 2-3 operators are usually required to complete the detection task, the mass operation is not facilitated, and the cost reduction and the labor intensity reduction of enterprises are not facilitated.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the auxiliary device and the method which have high automation degree and can effectively reduce the labor intensity of TOFD detection.
This kind of TOFD auxiliary device that detects a flaw for the work box that places TOFD check out test set and water source sets up in electronic running gear top, the work box passes through bolted connection with electronic running gear, the dismantlement maintenance of the work box of being convenient for, there is electronic elevating system work box's top through bolted connection, linear slide rail set spare passes through the bolt fastening in electronic elevating system's top, the mode control that adopts the remote control to go up and down, linear slide rail set spare top is equipped with TOFD and sweeps and look into adjusting device, the slider on the linear slide rail set spare drives TOFD and sweeps and look into adjusting device and slide at linear slide rail set spare.
The electric walking mechanism comprises a mobile power supply, a transmission mechanism and a wheel set, has the load capacity of 2 tons, can carry a large amount of detection water and various detection equipment, reduces manual assistance and improves the detection efficiency; the transmission system has the functions of advancing and steering, so that the flexibility of the walking mechanism is improved; the electric walking mechanism adopts a manual mode and a remote control mode, and when an obstacle which cannot be spanned by the remote control mode occurs, the electric walking mechanism can pass through the obstacle in a manual mode, so that the control reliability is improved.
The diameter of a single wheel of the wheel set is not less than 400mm, and the transmission mechanism is combined, so that the walking mechanism can conveniently climb over or bypass large obstacles, and the application range of the flaw detection equipment is enlarged.
The linear slide rail component is provided with a slide block which drives the TOFD scanning adjusting device to slide, so that the TOFD scanning adjusting device can move within a certain length range, and the purposes of easily adjusting the distance between the TOFD scanning adjusting device and a weld joint to be detected and enabling a magnetic roller of the TOFD scanning adjusting device to be in close contact with the surface of a cylinder section are achieved; the slide block both sides are equipped with the tight nail bolt, and after TOFD scanned the device and wait to detect the welding seam distance adjustment and be suitable, through screwing up the position of tight nail bolt fixed slide block to the position of fixed TOFD scanned the device.
TOFD sweeps and examines adjusting device include TOFD sweeps and examines support, free angle support, hydraulic telescoping rod, connecting block and hydraulic stem connection base, wherein the hydraulic stem connection base is fixed on linear slide rail set spare, hydraulic telescoping rod's one end and hydraulic connection base hinged joint, hydraulic telescoping rod's the other end with fix the connecting block hinged joint on TOFD sweeps and examines the support, TOFD detection device is connected to TOFD sweeps the one end of examining the support, the other end and free angle support hinged joint, slider fixed connection on free angle support and the linear slide rail set spare. The hydraulic telescopic rod has two functions of length adjustment and position locking, and the TOFD scanning support can be easily adjusted through the two functions to detect the angle between the welding seams, so that the magnetic roller surface of the TOFD scanning support is favorably in close contact with the surface of the welding seam to be detected. The specific adjustment process is as follows: when the length of the hydraulic telescopic rod is controlled to be increased, the TOFD scanning support automatically rotates around the shaft of the free angle support to rise, so that the TOFD scanning support is close to a welding line to be detected; when the length of the hydraulic telescopic rod is controlled to be shortened, the TOFD scanning support automatically rotates around the shaft of the free angle support and descends, so that the TOFD scanning support is far away from a welding line to be detected, and the effect of adjusting the angle of the TOFD scanning support is further achieved.
A water storage tank is arranged between the electric lifting mechanism and the linear sliding rail assembly, and a water outlet is formed in the bottom of the water storage tank. The water storage tank is mainly used for collecting flowing waste liquid in the detection process and preventing the waste liquid from entering the working box to corrode the detection equipment.
A, adding liquid into a working box for detection, and roughly adjusting the detection position by operating an automatic travelling mechanism and an automatic lifting mechanism;
B. and observing whether the detected signal is clear and stable, and if the detected signal does not meet the detection requirement, finishing fine adjustment of the detection position by adjusting the TOFD scanning and adjusting device so as to obtain a clear and stable detection signal.
And the step of operating the automatic travelling mechanism and the automatic lifting mechanism is that the automatic travelling mechanism is operated to approach the position near the weld joint to be detected, and then the automatic lifting mechanism is operated to convey the TOFD scanning adjusting device to the position near the surface of the weld joint to be detected, so that the initial adjustment of the transverse distance and the height distance is completed, and the preparation is made for the precise adjustment of the next step.
The step of accurately adjusting the TOFD scanning device is to adjust the position of a sliding block on the linear slide rail assembly and the length of a hydraulic telescopic rod so as to achieve the purpose of enabling the surface of a magnetic roller of the TOFD scanning bracket to be in close contact with the surface of a welding line to be detected. In the process, the position and the angle of the bracket are scanned by repeatedly finely adjusting the TOFD through the slide block of the linear slide rail, the hydraulic telescopic rod and the free angle bracket, and finally, a clear and stable detection signal is obtained as the optimal position and angle.
Before the automatic travelling mechanism and the automatic lifting mechanism are operated, a drain pipe is required to be connected to a drain outlet at the lower part of the water storage tank, waste liquid flowing into the water storage tank during welding line detection is guided into the waste liquid barrel, and other equipment is prevented from being corroded by the waste liquid.
The invention has the advantages that: the TOFD flaw detection auxiliary device and the TOFD flaw detection auxiliary method can be used for detecting flaws of welding seams of various pressure container barrels and end sockets, greatly reduces the labor use cost (two to three original operators are reduced into one operator) through a one-stop solution, greatly reduces the labor intensity of detection through the use of various automatic assemblies, and are suitable for large-scale popularization and use.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic view of the TOFD scanning adjustment device.
The labels in the figure are: the automatic control system comprises a working box 1, an electric travelling mechanism 2, an electric lifting mechanism 3, a linear sliding rail assembly 4, a 5-TOFD scanning adjusting device, a water storage box 6, a 51-TOFD scanning support 52, a free angle support 53, a hydraulic telescopic rod 54, a connecting block 55 and a hydraulic connecting base.
Detailed Description
The TOFD flaw detection auxiliary device and the use method thereof will be further described with reference to the accompanying drawings.
This kind of TOFD auxiliary device that detects a flaw for the work box 1 of placing TOFD check out test set and water source sets up in 2 tops of electronic running gear, for the convenience of being convenient for dismantle and in time maintain work box 1 from electronic running gear 2, work box 1 passes through bolted connection with electronic running gear 2, this electronic running gear 2 includes portable power source, drive mechanism and wheel group, and electronic running gear 2 has 2 tons of bearing capacity and two kinds of control modes of manual and remote control. An electric lifting mechanism 3 is connected above the working box 1 through bolts, and the lifting is controlled in a remote control lifting mode. The linear slide rail assembly 4 is fixed above the electric lifting mechanism 3 through bolts, a slide rail of the linear slide rail assembly 4 is provided with a slide block which drives the TOFD scanning adjusting device 5 to slide, and two sides of the slide block are provided with tacking bolts. And a TOFD scanning adjusting device 5 is arranged above the linear slide rail assembly 4. The linear slide rail assembly 4 is used for finely adjusting the position of the TOFD scanning adjusting device 5 when the position of the TOFD scanning adjusting device 5 cannot meet the requirement, the adjusting mode is manual, and the position of the TOFD scanning adjusting device 5 is locked through the tacking bolts on two sides of the linear slide rail assembly 4 after adjustment.
TOFD scans adjusting device 5 and includes TOFD scans support 51, free angle support 52, hydraulic telescoping rod 53, connecting block 54 and hydraulic connection base 55, hydraulic connection base 55 is fixed on linear slide rail set 4, hydraulic telescoping rod 53's one end and hydraulic connection base 55 hinge joint, hydraulic telescoping rod 53's the other end with fix the connecting block 54 hinge joint on TOFD scans support 51, TOFD detection device is connected to TOFD scans support 51's one end, the other end is connected with free angle support 52 hinge joint, free angle support 52 and the slider fixed connection on the linear slide rail set 4. The hydraulic telescopic rod 53 has the function of randomly adjusting the length and can be locked at any position so as to adjust the angle between the TOFD scanning bracket 51 and the detection weld, and the TOFD scanning bracket 51 can rotate around the shaft of the free angle bracket 52 by adjusting the length of the hydraulic telescopic rod 53, so that the function of adjusting the angle of the TOFD scanning bracket 51 is achieved.
A water storage tank 6 with a water outlet at the lower part is arranged between the electric lifting mechanism 3 and the linear slide rail component 4 and is used for collecting liquid flowing in the detection process and preventing the liquid from entering the working box 1 to corrode the detection equipment.
The application method of the TOFD flaw detection auxiliary device comprises the following steps that A, a drain pipe is connected to a drain outlet at the lower part of a water storage tank 6;
B. liquid is added into the working box 1 for detection, the automatic travelling mechanism and the automatic lifting mechanism are operated to approach the vicinity of a weld joint to be detected, and then the automatic lifting mechanism is operated to convey the TOFD scanning adjusting device 5 to the surface of the weld joint to be detected, so that coarse adjustment of a detection position is completed;
C. observing whether the detected signal is clear and stable, if the detection requirement is not met, adjusting the TOFD scanning adjusting device 5 to adjust the position of a slide block on the linear slide rail assembly 4 and the length of the hydraulic telescopic rod 53, adjusting the position and the angle of the TOFD scanning support 51 away from the welding line to be detected, finishing fine adjustment of the detection position, if the clear and stable detection signal is not obtained in the first adjustment, repeatedly performing the adjusting process, and finally obtaining the clear and stable detection signal. .
The foregoing shows and describes the general principles, general structure, and advantages of the present invention. It will be understood by those skilled in the art that variations and modifications in size and orientation may be made without departing from the spirit and scope of the invention, which is intended to be protected by the following claims.
Claims (10)
- TOFD auxiliary device that detects a flaw, its characterized in that: a work box for placing TOFD check out test set and water source sets up in electronic running gear top, and the work box passes through bolted connection with electronic running gear, and there is electronic elevating system the top of work box through bolted connection, and linear slide rail set passes through the bolt fastening in electronic elevating system's top, and linear slide rail set top is equipped with TOFD and sweeps and looks into adjusting device.
- 2. The TOFD inspection aid of claim 1, wherein: the electric walking mechanism comprises a mobile power supply, a transmission mechanism and a wheel set, and the electric walking mechanism is controlled manually or remotely.
- 3. The TOFD inspection aid of claim 2, wherein: the wheels of the wheel set are not less than 400 mm.
- 4. The TOFD inspection aid of claim 1, wherein: the slide rail of the linear slide rail component is provided with a slide block which drives the TOFD scanning adjusting device to slide, and two sides of the slide block are provided with tacking bolts.
- 5. The TOFD flaw detection assisting apparatus according to claim 4, characterized in that: TOFD scans adjusting device include TOFD scans support, free angle support, hydraulic telescoping rod, connecting block and hydraulic connection base, hydraulic connection base is fixed on linear slide rail set spare, hydraulic telescoping rod's one end and hydraulic connection base hinged joint, hydraulic telescoping rod's the other end with fix the connecting block hinged joint on TOFD scans the support, TOFD detection device is connected to TOFD scans the one end of support, the other end is connected with free angle support hinged joint, free angle support and the slider fixed connection on the linear slide rail set spare.
- 6. The TOFD flaw detection assisting apparatus according to claim 1 or 5, characterized in that: and a water storage tank with a water outlet at the lower part is arranged between the electric lifting mechanism and the linear slide rail component.
- 7. The method of using the TOFD flaw detection assisting apparatus according to claim 6, comprising: A. liquid is added into the working box for detection, and coarse adjustment of the detection position is completed by operating the automatic walking mechanism and the automatic lifting mechanism;B. and observing whether the detected signal is clear and stable, and if the detected signal does not meet the detection requirement, finishing fine adjustment of the detection position by adjusting the TOFD scanning and adjusting device so as to obtain a clear and stable detection signal.
- 8. The method of using the TOFD flaw detection assisting apparatus according to claim 7, wherein: and the step of operating the automatic travelling mechanism and the automatic lifting mechanism is that the automatic travelling mechanism is operated to approach the position near the welding line to be detected, and then the automatic lifting mechanism is operated to convey the TOFD scanning adjusting device to the surface of the welding line to be detected.
- 9. The method of using the TOFD flaw detection assisting apparatus according to claim 7, wherein: the TOFD scanning adjusting device is adjusted to adjust the position of a sliding block on the linear slide rail assembly and the length of the hydraulic telescopic rod, and adjust the position and the angle of the TOFD scanning support from the welding line to be detected so as to obtain a clear and stable detection signal.
- 10. The method of using the TOFD flaw detection assisting apparatus according to claim 7, wherein: and a drain pipe is connected to the drain outlet at the lower part of the water storage tank before the automatic walking mechanism and the automatic lifting mechanism are operated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911125139.8A CN110749652A (en) | 2019-11-18 | 2019-11-18 | TOFD flaw detection auxiliary device and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911125139.8A CN110749652A (en) | 2019-11-18 | 2019-11-18 | TOFD flaw detection auxiliary device and using method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111555398A (en) * | 2020-05-21 | 2020-08-18 | 南京力骏新能源储能研究院有限公司 | Portable power source equipment accessory equipment system |
| CN112504308A (en) * | 2020-12-22 | 2021-03-16 | 范聪洁 | Photoelectron mine hole flaw detector |
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