CN204832108U - A diffraction time difference method detection device for detecting on -plane surface welding seam - Google Patents
A diffraction time difference method detection device for detecting on -plane surface welding seam Download PDFInfo
- Publication number
- CN204832108U CN204832108U CN201520366055.4U CN201520366055U CN204832108U CN 204832108 U CN204832108 U CN 204832108U CN 201520366055 U CN201520366055 U CN 201520366055U CN 204832108 U CN204832108 U CN 204832108U
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- time difference
- detecting
- diffraction time
- difference method
- plane surface
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The utility model provides a diffraction time difference method detection device for detecting on -plane surface welding seam, including two horizontal poles, but two horizontal poles fix through adjusting screw, two disconnected one end of horizontal pole respectively are connected with a centre gripping, fixed folding slide wedge on the centre gripping, each fixed one TOFD probe still is fixed with encoder conversion equipment on the slide wedge on the centre gripping, encoder conversion equipment goes up continuous encoder. The utility model discloses fix diffraction time difference probe on the horizontal pole that two poles linked together, promote the probe through the horizontal pole and detect, the device easy operation, simple structure can realize accurate detection the to the defect position.
Description
Technical field
It is a kind of that the utility model relates to ultrasonic wave diffraction time difference method (TOFD) detection technique field, is specifically related to a kind of diffraction time difference method pick-up unit that can be used for detecting on-plane surface weld seam.
Background technology
It is a kind of novel detection technique method that diffraction time difference method (TOFD) detects, compare the detection being widely used in plane welded seam at present, the realization of the method is mainly completed jointly by detecting instrument and scanning equipment, the shape of scanning equipment directly determines detected object, for plane welded seam, scanning equipment can be easy to and absorption surface, and easy to operate.But for on-plane surface weld seam, scanning equipment just compares and is difficult to ensure and workpiece good contact, and when ensureing that probe contacts is good, it is good with absorption surface that scrambler is difficult to again guarantee, and it is more difficult to operate.
Utility model content
Be difficult to be applied to the detection of on-plane surface weld seam to overcome existing diffraction time difference method pick-up unit, the utility model provides a kind of diffraction time difference method pick-up unit that can be used for detecting on-plane surface weld seam.
The utility model is by the following technical solutions:
A kind of diffraction time difference method pick-up unit for detecting on-plane surface weld seam, comprise two cross bars, two cross bars are fixed by adjustable screw, the disconnected one end of two cross bars is respectively connected with a clamping, clamping is fixed a folding wedge, respectively on wedge fix TOFD probe, clamping is also fixed with coder transitions device, and coder transitions device is connected scrambler.
Two TOFD probes fixing on described two wedges comprise the TOFD probe of a Received signal strength and the TOFD probe of a transmission signal.
Described coder transitions device and scrambler are one, and coder transitions device is screwed in one of them clamping, and scrambler inserts in the socket of coder transitions device, then is screwed.
Described retaining sleeve on cross bar after, be screwed on bar cross bar, wedge is screwed in clamping.
The beneficial effects of the utility model: diffraction time difference probe is fixed on the cross bar that two bars link together by the utility model, promote probe by cross bar and detect, this device is simple to operate, and structure is simple, can realize the accurate detection to defective locations.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the use schematic diagram of the present utility model determining coordinate axis in welded joints.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
The utility model provides a kind of diffraction time difference method pick-up unit for detecting on-plane surface weld seam, comprise two cross bars, two cross bars are fixed by adjustable screw, the disconnected one end of two cross bars is respectively connected with a clamping, clamping is fixed a folding wedge, respectively on two wedges fixes a TOFD probe, one be Received signal strength TOFD probe, a TOFD sending signal pops one's head in, and clamping is also fixed with coder transitions device, and coder transitions device is connected scrambler.
Above-mentioned coder transitions device and scrambler can be one or two, when coder transitions device and scrambler are one, coder transitions device is screwed in one of them clamping, and scrambler inserts in the socket of coder transitions device, then is screwed use.Coder transitions device can be selected to be arranged in suitable clamping to use according to actual conditions.
Being enclosed within cross bar of clamping activity, and after adjusting position to suitable position, be screwed on bar cross bar, wedge is screwed in clamping.
The selection of above-mentioned wedge is selected according to the size at refraction angle, and specifically, the refraction angle of the wedge of selection should drive the wave beam of probe can cover the whole cross section of detected weld.
In the utility model, diffraction time difference method probe (one one receipts) is separately fixed on two cross bars by clamping, cross bar is fixedly connected with by adjustable screw, form the cross bar of adjustable-angle, scrambler is fixed therein in a clamping, driving scrambler record by promoting probe, along weld seam both sides examinations, after detecting defect, again it to be positioned, quantitative and qualitative etc. to analysis.Of the present utility model this is simple to operate, and structure is simple, can realize the accurate detection to defective locations.
As shown in Figure 1, be the schematic diagram of an embodiment of the present utility model.Comprise two cross bars, be connected by adjustable screw I 7 between two cross bars, two cross bars respectively fix a clamping 2 by screw II 8, and fix a wedge 3 respectively by screw VI 11 in two clampings 2, respectively on wedge 3 fix TOFD probe 4.A clamping 2 fixes a coder transitions device 5 by screw IV 10 wherein, scrambler 6 inserts in the socket V 12 of coder transitions device 5.
Determine X, Y and Z axis in welded joints, as shown in Figure 2, be X-axis along fusion length direction, weld width direction is Y-axis, and depth direction is Z axis.The cross bar one end installing TOFD probe and scrambler is placed on weld seam termination, moves in parallel to X-direction along the fixation locus preset, until the other end of weld seam stops, obtain TOFD and detect scanning collection of illustrative plates.
The utility model is simple to operate, structure is simple, not only solve nonplanar weld seam one receive probe can not simultaneously problem that is good and absorption surface, can also carry out accurately locating with quantitative to defect, carry out qualitative with reference to welding technology to defect, the labour intensity of testing staff can be reduced again, improve detection efficiency, shorten sense cycle, improve detection efficiency.
Claims (4)
1. one kind for detecting the diffraction time difference method pick-up unit of on-plane surface weld seam, it is characterized in that: comprise two cross bars, two cross bars are fixed by adjustable screw, the disconnected one end of two cross bars is respectively connected with a clamping, clamping is fixed a folding wedge, respectively on wedge fix TOFD probe, clamping is also fixed with coder transitions device, and coder transitions device is connected scrambler.
2. the diffraction time difference method pick-up unit for detecting on-plane surface weld seam according to claim 1, is characterized in that: two TOFD probes fixing on described two wedges comprise the TOFD probe of a Received signal strength and the TOFD probe of a transmission signal.
3. the diffraction time difference method pick-up unit for detecting on-plane surface weld seam according to claim 1, it is characterized in that: described coder transitions device and scrambler are one, coder transitions device is screwed in one of them clamping, scrambler inserts in the socket of coder transitions device, then is screwed.
4. the diffraction time difference method pick-up unit for detecting on-plane surface weld seam according to claim 1, is characterized in that: described retaining sleeve on cross bar after, be screwed on bar cross bar, wedge is screwed in clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520366055.4U CN204832108U (en) | 2015-06-01 | 2015-06-01 | A diffraction time difference method detection device for detecting on -plane surface welding seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520366055.4U CN204832108U (en) | 2015-06-01 | 2015-06-01 | A diffraction time difference method detection device for detecting on -plane surface welding seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204832108U true CN204832108U (en) | 2015-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520366055.4U Expired - Fee Related CN204832108U (en) | 2015-06-01 | 2015-06-01 | A diffraction time difference method detection device for detecting on -plane surface welding seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204832108U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501467A (en) * | 2016-12-29 | 2017-03-15 | 核动力运行研究所 | A kind of probe scanning instrument suitable for different structure welding inspection |
-
2015
- 2015-06-01 CN CN201520366055.4U patent/CN204832108U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106501467A (en) * | 2016-12-29 | 2017-03-15 | 核动力运行研究所 | A kind of probe scanning instrument suitable for different structure welding inspection |
| CN106501467B (en) * | 2016-12-29 | 2019-02-26 | 核动力运行研究所 | A kind of probe scanning tool suitable for different structure welding inspection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151202 |