CN107389800B - Non-magnetic metal sheet welding seam ultrasonic scanning device - Google Patents
Non-magnetic metal sheet welding seam ultrasonic scanning device Download PDFInfo
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- CN107389800B CN107389800B CN201710847624.0A CN201710847624A CN107389800B CN 107389800 B CN107389800 B CN 107389800B CN 201710847624 A CN201710847624 A CN 201710847624A CN 107389800 B CN107389800 B CN 107389800B
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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
- G01N29/26—Arrangements for orientation or scanning by relative movement of the head and the sensor
- G01N29/265—Arrangements for orientation or scanning by relative movement of the head and the sensor by moving the sensor relative to a stationary material
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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
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- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
The invention belongs to the technical field of ultrasonic nondestructive testing, and relates to a non-magnetic metal sheet welding seam ultrasonic scanning device which comprises a track mechanism and a scanner, wherein the scanner can slide along a track plate of the track mechanism, the scanner comprises a driving mechanism, a first encoder, a connecting mechanism and a probe loading arm, the driving mechanism is connected with the track plate, the driving mechanism comprises a driving bracket, driving wheels and rollers, two rollers are respectively arranged on two sides of the driving bracket, the rollers are clamped on two sides of the track plate through grooves in the middle and can slide along the track plate, the driving wheels are configured to adjust the width of the driving bracket and the distance and angle of the rollers so as to adapt to the surfaces of workpieces with different curvatures, and a first side part of the driving bracket is fixedly connected with the first encoder, and a second side part of the driving bracket is connected with the probe loading arm through the connecting mechanism. The invention has simple structure, can realize the switching of two scanning modes of automatic and manual operation, can be suitable for different working conditions, and has good flexibility, high reliability and high precision.
Description
Technical Field
The invention belongs to the technical field of ultrasonic nondestructive testing, and relates to an ultrasonic scanning device for welding seams of a non-magnetic metal sheet.
Background
Ultrasonic nondestructive testing methods are of irreplaceable importance in many industrial fields, such as product quality testing, equipment safety inspection, and the like. With the development of nondestructive testing technology, ultrasonic testing is gradually developed to be imageable and recordable. For important, complex structures, imaging advanced ultrasonic inspection methods such as ultrasonic Phased Array (PAUT) and ultrasonic time-of-flight diffraction (TOFD) are becoming the dominant inspection methods. The high-precision, portable and multipurpose mechanical scanner is a key component for realizing the technical engineering application, and is mainly used for clamping the probe to move on a detection surface and realizing high-precision ultrasonic detection of a workpiece to be detected. The current scanning device mainly aims at ultrasonic detection of magnetic materials, lacks a scanning device for carrying out ultrasonic nondestructive detection on a non-magnetic metal sheet, has a generally complex design structure, is inconvenient to detach and maintain, cannot guarantee high-precision scanning detection, and limits the use of the scanning device under complex working conditions.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the ultrasonic scanning device for the welding line of the non-magnetic metal sheet, which can realize scanning of the straight welding line and the circular welding line (inner ring welding line and outer ring welding line) of the non-magnetic metal sheet, has a simple structure, can realize two scanning modes of manual or automatic, is convenient to detach and maintain in the later period, and has the advantages of convenient operation, high precision and low cost.
The invention is realized in the following way:
the ultrasonic scanning device for the welding seams of the nonmagnetic metal thin plates comprises a track mechanism and a scanner, wherein the track mechanism comprises a track bracket and a track plate, the track bracket comprises a base, an adjusting piece and a track connecting plate, the upper part of the adjusting piece is fixedly connected with the track connecting plate, the lower part of the adjusting piece is fixedly connected with the base and adsorbs and fixes the base on the surface of a workpiece, the adjusting piece is configured to adjust the height of the track bracket, and two ends of the track plate are respectively fixed with the track connecting plate; the scanner comprises a driving mechanism, a first encoder, a connecting mechanism and a probe loading arm, wherein the driving mechanism is connected with the track plate, the driving mechanism comprises a driving support, driving wheels and rollers, two rollers are respectively arranged on two sides of the driving support, the distance between the two rollers on the first side part of the driving support is smaller than that between the two rollers on the second side part, the rollers are clamped on two sides of the track plate through grooves in the middle part and can slide along the track plate, the driving wheels are used for adjusting the width of the driving support and the distance and angle of the rollers to adapt to the surfaces of workpieces with different curvatures, the first side part of the driving support is fixedly connected with the first encoder, the connecting mechanism comprises a transverse connecting plate, a longitudinal connecting plate and an adjusting connecting plate, the first end part of the transverse connecting plate is fixedly connected with the upper part of the longitudinal connecting plate through an elastic piece, the lower part of the longitudinal connecting plate is fixedly connected with the adjusting connecting plate, and the probe loading arm is connected with the adjusting connecting plate.
Preferably, the bottom of the track plate is provided with an adjusting foot.
Preferably, the track plate is a replaceable track plate.
Preferably, the track plate is a straight track plate or an arc track plate.
Preferably, the track plate has an arc of greater than 60 °.
Preferably, the outer side part of the adjusting connection plate is fixedly connected with a second encoder.
Preferably, the probe loading arm is a replaceable probe loading arm.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, through the design of the replaceable track plate, the scanning of the straight welding seam and the circular welding seam (the inner ring welding seam and the outer ring welding seam) of the non-magnetic metal sheet can be realized, a scanner is not required to be replaced, the length of the track plate can be changed to be suitable for different working conditions, the operation is convenient, the precision is high, and the cost is lower;
(2) the invention can realize two scanning modes of manual scanning and automatic scanning at the same time, can be suitable for complex working conditions, and has stronger practicability;
(3) the non-magnetic metal sheet weld joint scanning device can stably and smoothly walk on the surface of a detected workpiece, particularly a curved surface workpiece, and improves the detection quality;
(4) the probe loading arm can be replaced, different types of probes can be loaded, various ultrasonic detection methods can be realized, the installation is convenient, and the operation is simple;
(5) the setting of coupling mechanism makes the probe can all-round rotation, and the flexibility is better, can laminate with waiting to examine the work piece better, and the scanning work is accomplished to the high accuracy.
Drawings
FIG. 1 is a schematic structural view of a non-magnetic sheet metal weld ultrasonic scanning device of the present invention;
FIG. 2 is a schematic diagram of the connection of a second encoder for manual scanning according to another embodiment of the present invention;
fig. 3 is a side view of the track mechanism of the present invention.
Detailed Description
Exemplary embodiments, features and aspects of the present invention will be described in detail below with reference to the attached drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.
As shown in fig. 1, the ultrasonic scanning device for the welding line of the nonmagnetic metal sheet comprises a track mechanism 1 and a scanner 2. As shown in fig. 2, the track mechanism 1 includes a track bracket 11 and a track plate 12, the track bracket 11 includes a base 111, an adjusting member 112 and a track connecting plate 113, the upper portion of the adjusting member 112 is fixedly connected with the track connecting plate 113, the lower portion of the adjusting member 112 is fixedly connected with the base 111 and adsorbs and fixes the base 11 on the surface of a workpiece, the adjusting member 112 is configured to adjust the height of the track bracket 11, two ends of the track plate 12 are respectively fixed with the track connecting plate 113, an adjusting foot 121 is arranged at the bottom of the track plate 113, the adjusting foot 121 at the bottom of the track plate 12 is automatically adjusted after the adjusting foot 11 is fixed on the surface of the workpiece to be inspected, so that the curvature of the whole track plate 12 is identical to the curvature of the workpiece, the scanner 2 can walk stably and smoothly on the surface of the workpiece, and the scanning work of the nonmagnetic metal sheet is completed. The scanner 2 comprises a driving mechanism 21, a first encoder 22, a connecting mechanism 23 and a probe loading arm 24 which are connected with the track plate 12, wherein the driving mechanism 21 comprises a driving bracket 211, a driving wheel 212 and rollers 213, two rollers 213 are respectively arranged on two sides of the driving bracket 211, the distance between the two rollers on the first side part of the driving bracket 211 is smaller than the distance between the two rollers on the second side part, the four rollers are distributed in an isosceles trapezoid shape, the rollers 213 are clamped on two sides of the track plate 12 through grooves in the middle part, a driving device in the driving bracket 211 can drive the scanner 2 to slide along the track plate 12, the driving wheel 212 is configured to adjust the width of the driving bracket 211 and the distance and angle of the rollers 213 to adapt to the surfaces of workpieces with different curvatures, the first side part of the driving bracket 211 is fixedly connected with the first encoder 22, the connecting mechanism 23 comprises a transverse connecting plate 231, a longitudinal connecting plate 232 and an adjusting connecting plate 233, wherein a first end part of the transverse connecting plate 231 is fixed on a second side part of the driving bracket 211, a second end part of the transverse connecting plate 231 is fixedly connected with the upper part of the longitudinal connecting plate 232 through an elastic piece, the longitudinal connecting plate 232 can longitudinally move up and down, the lower part of the longitudinal connecting plate 232 is fixedly provided with the adjusting connecting plate 233, the adjusting connecting plate 233 is connected with a probe loading arm 24, the adjusting connecting plate 233 can adjust the distance and angle of the probe loading arm 24, the position of the probe is adjusted, the longitudinal connecting plate 232 and the adjusting connecting plate 233 are matched, so that the probe can rotate in all directions, the flexibility is better, the probe can be attached to a workpiece to be inspected better, and the scanning work can be completed with high precision.
Preferably, the elastic members in this embodiment are two springs, which are respectively distributed on the left and right sides of the longitudinal connecting plate 232, and play a role in fixing and adjusting the longitudinal connecting plate, so that the probe is more attached to the workpiece to be inspected.
Preferably, the base 11 of the present embodiment is a rubber suction cup, and the adjusting member 112 can exhaust air in the suction cup, firmly fix the base 11 on the surface of the workpiece to be inspected, keep the stability of the whole track mechanism and make the curvature of the whole track plate identical to the curvature of the workpiece to be inspected.
The track plate 12 is a replaceable track plate, and the track plate can be a straight track plate or an arc track plate, and the length of the track plate can also be selected according to working conditions. When the girth weld (inner ring weld and outer ring weld) is detected, an arc-shaped track plate is used, the radian of the track plate 12 can be adjusted, the common radian is larger than 60 degrees, when the arc-shaped track plate is adjusted to the required radian during detection, the adjusting piece 112 discharges air in the base 111 to enable the air to be adsorbed on the surface of a workpiece to be detected, the width of the driving support 211 and the distance and the angle between rollers on the same side are adjusted through the driving wheel 212 of the driving mechanism 21 to enable the width and the angle to adapt to the curvature of the surface of the workpiece, the grooves of the rollers are clamped on the track plate 12, the driving device is started, and the scanner 2 stably and smoothly walks on the workpiece with the curved surface to be detected, so that the scanning work of the girth weld is completed; when detecting the straight welding seam, the adjusting piece 112 discharges the air in the base 111 to enable the air to be adsorbed on the surface of the workpiece to be detected, the driving wheel 212 of the driving mechanism 21 is used for adjusting the width of the driving bracket 211, the groove of the roller is clamped on the track plate 12, the driving device is started, and the scanner 2 stably and smoothly walks on the workpiece with the curved surface to be detected, so that the scanning work of the straight welding seam is completed.
The combination of the driving mechanism 21 and the track mechanism 1 can realize automatic scanning of the scanner.
In another embodiment, when the working condition is complex and not suitable for automatic scanning, a track mechanism is not needed, a handheld scanning mode is adopted, as shown in fig. 2, the outer side portion of the adjusting connection plate 233 is fixedly connected with the second encoder 25, and at this time, the second encoder 25 is used for recording the distance, so that the manual scanning of the workpiece to be detected is completed.
Preferably, the probe loading arm 24 is a replaceable probe loading arm, in which case the probe is an ultrasonic Phased Array (PAUT) probe, and in other embodiments it may be replaced with an ultrasonic time-lapse diffraction (TOFD) probe.
Preferably, the connection mode of the invention adopts a nut bolt or a pin.
In summary, the non-magnetic sheet metal weld scanning device of the invention has the following advantages:
through the design of the replaceable track plate, the scanning of the straight welding seam and the circular welding seam (the inner ring welding seam and the outer ring welding seam) of the non-magnetic metal sheet can be realized, a scanner is not required to be replaced, the length of the track plate can be replaced to be suitable for different working conditions, the operation is convenient, the precision is high, and the cost is lower; the two scanning modes of manual scanning and automatic scanning can be realized at the same time, complex working conditions can be applied, and the practicability is higher; the probe loading arm can be replaced, different types of probes can be loaded, various ultrasonic detection methods can be realized, the installation is convenient, and the operation is simple; the setting of coupling mechanism makes the probe can all-round rotation, and the flexibility is better, can laminate with waiting to examine the work piece better, and the scanning work is accomplished to the high accuracy.
Finally, it should be noted that: the embodiments described above are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced with equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (7)
1. The utility model provides a non-magnetic sheet metal welding seam supersound scanning device, includes rail set and sweeps ware, its characterized in that:
the track mechanism comprises a track support and a track plate, the track support comprises a base, an adjusting piece and a track connecting plate, the adjusting piece is configured to adjust the height of the track support, the upper portion of the adjusting piece is fixedly connected with the track connecting plate, the lower portion of the adjusting piece is fixedly connected with the base and adsorbs and fixes the base on the surface of a workpiece, and two ends of the track plate are respectively fixed with the track connecting plate;
the scanner comprises a driving mechanism, a first encoder, a connecting mechanism and a probe loading arm, wherein the driving mechanism is connected with the track plate, the driving mechanism comprises a driving support, a driving wheel and rollers, two rollers are respectively arranged on two sides of the driving support, the distance between the two rollers on the first side part of the driving support is smaller than that between the two rollers on the second side part, the rollers are clamped on two sides of the track plate through grooves in the middle part and can slide along the track plate, the width of the driving support and the distance and angle of the rollers are adjusted by the driving wheel so as to adapt to the surfaces of workpieces with different curvatures, the first side part of the driving support is fixedly connected with the first encoder, the connecting mechanism comprises a transverse connecting plate, a longitudinal connecting plate and an adjusting connecting plate, the first end part of the transverse connecting plate is fixedly connected with the upper part of the longitudinal connecting plate through an elastic piece, the adjusting connecting plate is fixedly connected with the lower part of the longitudinal connecting plate, and the probe loading arm is connected with the adjusting connecting plate.
2. The non-magnetic sheet metal weld ultrasonic scanning device of claim 1, wherein: the bottom of the track plate is provided with an adjusting foot margin.
3. The non-magnetic sheet metal weld ultrasonic scanning device of claim 1, wherein: the track plate is a replaceable track plate.
4. The ultrasonic weld scanning device for non-magnetic sheet metal according to claim 3, wherein: the track plate is a straight track plate or an arc track plate.
5. The ultrasonic scanning device for welding seams of nonmagnetic metal sheets according to claim 4, characterized in that: the radian of the track plate is greater than 60 degrees.
6. The non-magnetic sheet metal weld ultrasonic scanning device of claim 1, wherein: and the outer side part of the adjusting connecting plate is fixedly connected with a second encoder.
7. The non-magnetic sheet metal weld ultrasonic scanning device of claim 1, wherein: the probe loading arm is a replaceable probe loading arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710847624.0A CN107389800B (en) | 2017-09-19 | 2017-09-19 | Non-magnetic metal sheet welding seam ultrasonic scanning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710847624.0A CN107389800B (en) | 2017-09-19 | 2017-09-19 | Non-magnetic metal sheet welding seam ultrasonic scanning device |
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| Publication Number | Publication Date |
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| CN107389800A CN107389800A (en) | 2017-11-24 |
| CN107389800B true CN107389800B (en) | 2023-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710847624.0A Active CN107389800B (en) | 2017-09-19 | 2017-09-19 | Non-magnetic metal sheet welding seam ultrasonic scanning device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111425772B (en) * | 2020-05-27 | 2024-09-10 | 江苏迪业检测科技有限公司 | Ultrasonic detection device |
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| JPH10282069A (en) * | 1997-04-07 | 1998-10-23 | Nippon Steel Corp | Ultrasonic flaw detector and sensitivity calibration method thereof |
| CN101256173A (en) * | 2007-03-01 | 2008-09-03 | 中国石油天然气股份有限公司 | Manual scanner for spiral weld joint |
| CN101915808A (en) * | 2010-07-22 | 2010-12-15 | 中国特种设备检测研究院 | Ultrasonic inspecting and scanning device of welding line |
| CN102384943A (en) * | 2011-08-10 | 2012-03-21 | 国核电站运行服务技术有限公司 | Time-of-flight diffraction ultrasonic scanning bracket |
| CN203745431U (en) * | 2014-03-26 | 2014-07-30 | 深圳市神视检验有限公司 | Automatic scanning device for ultrasonic detection |
| CN104330479A (en) * | 2014-11-27 | 2015-02-04 | 长沙理工大学 | Ultrasonic phased array automatic scanning device used for large-size curved-surface component |
| CN105467007A (en) * | 2015-12-04 | 2016-04-06 | 四川兴天源材料检测技术有限公司 | Airplane leading edge detection device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8485036B2 (en) * | 2011-02-14 | 2013-07-16 | Ge-Hitachi Nuclear Energy Americas Llc | Circumferential weld scanner with axial drift prevention |
-
2017
- 2017-09-19 CN CN201710847624.0A patent/CN107389800B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10282069A (en) * | 1997-04-07 | 1998-10-23 | Nippon Steel Corp | Ultrasonic flaw detector and sensitivity calibration method thereof |
| CN101256173A (en) * | 2007-03-01 | 2008-09-03 | 中国石油天然气股份有限公司 | Manual scanner for spiral weld joint |
| CN101915808A (en) * | 2010-07-22 | 2010-12-15 | 中国特种设备检测研究院 | Ultrasonic inspecting and scanning device of welding line |
| CN102384943A (en) * | 2011-08-10 | 2012-03-21 | 国核电站运行服务技术有限公司 | Time-of-flight diffraction ultrasonic scanning bracket |
| CN203745431U (en) * | 2014-03-26 | 2014-07-30 | 深圳市神视检验有限公司 | Automatic scanning device for ultrasonic detection |
| CN104330479A (en) * | 2014-11-27 | 2015-02-04 | 长沙理工大学 | Ultrasonic phased array automatic scanning device used for large-size curved-surface component |
| CN105467007A (en) * | 2015-12-04 | 2016-04-06 | 四川兴天源材料检测技术有限公司 | Airplane leading edge detection device |
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| CN107389800A (en) | 2017-11-24 |
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