CN220170107U - Auxiliary positioning ruler for ultrasonic detection of horizontal position of welding line - Google Patents
Auxiliary positioning ruler for ultrasonic detection of horizontal position of welding line Download PDFInfo
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- CN220170107U CN220170107U CN202321408290.4U CN202321408290U CN220170107U CN 220170107 U CN220170107 U CN 220170107U CN 202321408290 U CN202321408290 U CN 202321408290U CN 220170107 U CN220170107 U CN 220170107U
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- 238000003466 welding Methods 0.000 title claims abstract description 41
- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000005259 measurement Methods 0.000 abstract description 13
- 230000004927 fusion Effects 0.000 abstract description 12
- 239000000523 sample Substances 0.000 description 12
- 241001669679 Eleotris Species 0.000 description 11
- 239000000463 material Substances 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The utility model relates to an auxiliary positioning ruler for ultrasonic detection of a horizontal position of a welding seam, which comprises a main ruler and a ruler frame, wherein a first chute is arranged on the ruler frame, the main ruler is in sliding connection with the ruler frame through the first chute, a distance is reserved between the first chute and the bottom of the ruler frame, a main ruler scale mark is arranged on the upper surface of the main ruler, a ruler frame notch is arranged at one end, facing to a main ruler zero scale mark, of the ruler frame, and the ruler frame notch is positioned at one side, far away from the main ruler, of the ruler frame. The utility model can accurately measure the horizontal distance of the reflected wave of the ultrasonic flaw detector; the position of the welding line fusion surface of the boundary beam is rapidly positioned, and the horizontal position deviation value and the deviation direction of the reflected wave relative to the welding line fusion surface of the boundary beam are accurately judged; the accuracy and the detection efficiency of horizontal distance measurement are improved, the accuracy of detection results is guaranteed, erroneous judgment is prevented, and the quality of products is effectively guaranteed.
Description
Technical Field
The utility model relates to the field of ultrasonic detection of welding seams, in particular to an auxiliary positioning ruler for ultrasonic detection of horizontal positions of welding seams.
Background
Ultrasonic detection is one of the most commonly used detection methods in the nondestructive detection field, and has wide application range and high reliability in the urban rail vehicle manufacturing field. At present, ultrasonic detection is mostly finished by an ultrasonic flaw detector, the depth and horizontal distance of reflected waves can be directly read out, and the detection precision is 0.1mm. After the horizontal distance between the reflected wave and the front end of the probe is read out on the ultrasonic flaw detector, the corresponding size is measured by using a steel ruler, and the actual reflected position of the reflected wave is determined so as to accurately analyze and judge the reflected wave. Therefore, accurate measurement and positioning of the reflected wave horizontal distance is important for judging the ultrasonic detection result.
As shown in figure 1, the welding seams 6 are scanned and detected by placing an ultrasonic probe 5 on the surface of a sleeper beam 7 during manual welding and ultrasonic detection. The surface of the sleeper beam 7 is 8 (+ -1) mm higher than the surface of the side beam 8, the residual height of the welding line 6 is reserved, the highest point of the welding line 6 is 2-3 mm higher than the surface of the sleeper beam 7, the upper surface of the side beam 8 is covered by the welding line 6 in a width area of 6-10 mm, and the position of the welding line 6 and the welding line fusion surface 602 of the side beam cannot be distinguished in appearance. Meanwhile, local protrusions 603 are easy to appear on the back of the base material at the position close to the welding seam 6 of the edge beam 8 due to shrinkage during welding, reflected waves are generated when the angles of the protrusions 603 and ultrasonic sound beams are proper, the difference between the reflected waves of the protrusions 603 and the reflected waves of the defect at the position of the welding seam fusion surface 602 is within 5mm in the horizontal position, the upper surface of the edge beam 8 is provided with an area 601 with the width of 6-10 mm covered by the welding seam, and after the horizontal distance is measured, whether the reflected waves are the reflected waves of the defect at the position of the welding seam fusion surface 602 of the edge beam or the reflected waves of the protrusions 603 at the back of the base material of the edge beam cannot be judged, so that erroneous judgment is caused. Moreover, due to the height difference between the sleeper beam surface and the side beam surface and the existence of the weld seam surplus height, the reading is very inaccurate when the steel ruler measures the horizontal distance, and the possibility of misjudgment is further increased.
How to realize accurate measurement and quick positioning of the reflected wave horizontal position of the ultrasonic detection of the non-uniform height HV type welding seam is a great difficulty in the technical field of the ultrasonic detection of the existing non-uniform height HV type welding seam.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, provides an auxiliary positioning ruler for ultrasonic detection of a horizontal position of a welding seam, and solves the problem that the accuracy of a measurement result is affected by the fact that the position of a welding seam fusion surface of a boundary beam, the height difference between a sleeper beam surface and the boundary beam surface and the existence of a welding seam surplus height cannot be distinguished in appearance.
The technical scheme adopted by the utility model is as follows:
the utility model provides a welding seam ultrasonic detection horizontal position assistance-localization real-time chi, includes main scale, chi frame, be provided with first spout on the chi frame, main scale passes through first spout and chi frame sliding connection, first spout has the interval with the bottom of chi frame, the main scale upper surface is provided with main scale mark, the one end of chi frame orientation main scale zero scale mark is provided with the chi frame breach, the chi frame breach is located one side that the main scale was kept away from to the chi frame.
The ruler frame notch can avoid the interference between the ruler frame and the welding line during measurement, the first sliding groove is spaced from the bottom of the ruler frame, the interference between the main ruler and the welding line during measurement can be avoided, and the problem that the accuracy of a measurement result is affected due to the fact that the height difference between the sleeper beam surface and the side beam surface and the existence of the weld seam excess height during horizontal distance measurement is solved.
Further, the size of the notch of the ruler frame is determined according to the width and the height of the welding seam on the upper surface of the boundary beam.
Preferably, the depth of the rule frame notch along the length direction of the rule frame is 15mm, and the height is 15mm.
Further, the height value from the bottom surface of the first sliding groove to the bottom surface of the ruler frame is larger than the vertical height value from the highest point of the welding line to the upper surface of the boundary beam. Thus, the interference between the main ruler and the welding seam in the measuring process is avoided.
Preferably, the height value from the bottom surface of the first chute on the ruler frame to the bottom surface of the ruler frame is 20mm.
Further, the length L of the main scale 1 ≥2×K×T+L 2 Wherein K is the refraction angle tangent value of the ultrasonic probe, T is the thickness of the sleeper beam, L 2 The length of the ruler frame is; the maximum thickness of the sleeper beam of the urban rail vehicle is 20mm, and the maximum K value of the ultrasonic probe is 2.5. The length of the frame is preferably 100mm according to the width range of the upper surface of the side beam from 80mm to 120 mm.
Preferably, the main scale length is 200mm.
Further, the interval between adjacent main scale graduation marks is 1mm, and the lattice number of the main graduation marks is more than or equal to (2 XKxT)/1. The number of cells is at least 100 cells.
Preferably, the number of cells of the main score line is set to 190 cells.
Further, one end of the upper surface of the ruler frame facing the main ruler zero graduation line is provided with ruler frame graduation lines, the number of the ruler frame graduation lines is 10, and the interval between the adjacent ruler frame graduation lines is 0.9mm.
Further, when the reading of the auxiliary positioning ruler is zero, the front end face of the main ruler is flush with the front end face of the ruler frame, and the zero scale mark of the main ruler is aligned with the zero scale mark of the ruler frame. Thus, the difference between the main scale graduation line and each lattice of the scale frame graduation line is 0.1mm. The measurement precision of the auxiliary positioning ruler is 0.1mm, and is matched with the detection precision of the ultrasonic flaw detector.
Further, a plurality of bosses are arranged on the surface of the main ruler, and the bosses are uniformly distributed along the length direction of the main ruler. Thus, the main ruler is smoothly shifted when the auxiliary positioning ruler is operated by one hand.
Further, a groove is formed in the first sliding groove. Therefore, the contact area between the main ruler and the first sliding groove is reduced, the processing difficulty of the workpiece is reduced, and the flatness accuracy of the processed contact surface area is guaranteed. The contact area of the main ruler and the first chute is small, and the accumulated error after the matching can be reduced, so that the measurement accuracy is improved, and the measurement accuracy of the auxiliary positioning ruler is ensured.
Further, a second sliding groove is formed in the ruler frame and is located on one side, far away from the main ruler, of the ruler frame. The cross sections of the first chute and the second chute are flat rectangles.
Further, a positioning adjusting block is arranged in the second sliding groove and is in sliding connection with the second sliding groove.
Further, a threaded hole is formed in the side wall of the ruler frame, a fastening screw is arranged in the threaded hole, and the fastening screw is tightly propped against the positioning adjusting block through the threaded hole. The fastening screw can fix the positioning adjusting block in the second chute, and the application of the auxiliary positioning ruler in different vehicle types is realized by changing the position of the positioning adjusting block in the second chute.
Further, one side of the positioning adjusting block far away from the main rule is provided with a positioning block, and the positioning block is positioned at one end of the positioning adjusting block far away from the rule frame notch.
Further, one end of the positioning block is fixedly connected with the positioning adjusting block, the other end of the positioning block is provided with a positioning arc surface, and the positioning arc surface is positioned on one side of the positioning block facing the notch of the ruler frame.
Compared with the prior art, the utility model has the beneficial effects that: the horizontal distance of the reflected wave of the ultrasonic flaw detector can be accurately measured; the position of the welding line fusion surface of the boundary beam is rapidly positioned, and the horizontal position deviation value and the deviation direction of the reflected wave relative to the welding line fusion surface of the boundary beam are accurately judged; the accuracy and the detection efficiency of horizontal distance measurement are improved, the accuracy of detection results is guaranteed, erroneous judgment is prevented, and the welding quality of products is effectively guaranteed.
Drawings
FIG. 1 is a schematic diagram of a welded structure;
FIG. 2 is a schematic diagram of the structure of the present utility model;
FIG. 3 is a front view of the present utility model;
FIG. 4 is a left side view of the present utility model;
FIG. 5 is a top view of the present utility model;
FIG. 6 is a front view of the main scale of the present utility model;
FIG. 7 is a left side view of the main scale of the present utility model;
FIG. 8 is a schematic cross-sectional view of the position A-A of FIG. 6;
FIG. 9 is a schematic view of the structure of the frame of the present utility model;
FIG. 10 is a front view of the frame of the present utility model;
FIG. 11 is a left side view of the frame of the present utility model;
FIG. 12 is a top view of the frame of the present utility model;
FIG. 13 is a schematic view of the structure of the positioning adjustment block of the present utility model;
fig. 14 is a schematic diagram of an embodiment of the present utility model.
Reference numerals illustrate: 1. main scale, 101, boss, 102, main scale graduation line, 103, main scale front end face, 104, main scale zero graduation line, 2, scale frame, 201, first chute, 202, groove, 203, second chute, 204, scale frame notch, 205, scale frame graduation line, 206, scale frame front end face, 207, screw hole, 3, positioning adjusting block, 301, positioning block, 302, positioning arc face, 4, fastening screw, 5, ultrasonic probe, 501, ultrasonic probe front end face, 6, welding seam, 601, boundary beam covered area by welding seam 602, boundary beam welding seam fusion face, 603, protrusion, 7, sleeper beam, 8, boundary beam, 801, boundary beam upper surface, 802, boundary beam inner side, 803, boundary beam outer side, 9, horizontal scale.
Detailed Description
The utility model will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are used hereinafter to denote only the directions corresponding to the upper, lower, left, and right directions of the drawings, and do not limit the structure.
Referring to fig. 2-13, an auxiliary positioning rule for ultrasonic detection of horizontal positions of welding seams comprises a main rule 1 and a rule frame 2, and is characterized in that a first chute 201 is arranged on the rule frame 2, the first chute 201 is spaced from the bottom of the rule frame 2, the main rule 1 is slidably connected with the rule frame 2 through the first chute 201, main rule scale marks 102 are arranged on the surface of the main rule 1, a rule frame notch 204 is arranged at one end, facing to a main rule zero scale mark 104, of the rule frame 2, and the rule frame notch 204 is positioned at one side, far away from the main rule 1, of the rule frame 2.
The depth of the rule frame notch 204 along the length direction of the rule frame 2 is 15mm, and the height is 15mm.
The frame notch 204 is circular.
The height value from the bottom surface of the first chute 201 on the ruler frame 2 to the bottom surface of the ruler frame 2 is 20mm.
When the reading of the auxiliary positioning ruler is zero, the front end face 103 of the main ruler is flush with the front end face 206 of the ruler frame.
The length of the main scale 1 is 200mm. The number of the main graduation marks 102 is set to 190, and the interval between the adjacent main graduation marks 102 is 1mm.
The upper surface of the ruler frame 2 is provided with ruler frame graduation marks 205 towards one end of the main ruler zero graduation mark 104, the number of the ruler frame graduation marks 205 is 10, and the interval between the adjacent ruler frame graduation marks 205 is 0.9mm.
As shown in fig. 6, 3 bosses 101 are disposed on the surface of the main scale 1, and the bosses 101 are uniformly distributed along the length direction of the main scale 1.
As shown in fig. 10, a groove 202 is disposed in the first chute 201.
As shown in fig. 12, the frame 2 is provided with a second slide groove 203, and the second slide groove 203 is located at a side of the frame 2 away from the first slide groove 201. The cross sections of the first chute 201 and the second chute 203 are flat rectangles.
As shown in fig. 5, a positioning adjusting block 3 is disposed in the second sliding groove 203, and the positioning adjusting block 3 is slidably connected with the second sliding groove 203.
As shown in fig. 9, a threaded hole 207 is provided on the side wall of the scale frame 2, a fastening screw 4 is provided in the threaded hole 207, and the fastening screw 4 contacts with the positioning adjusting block 3 to be tightly pressed. The position of the positioning adjustment block 3 in the second slide groove 203 can be adjusted by tightening the screw 4, and the positioning adjustment block 3 is fixed in the second slide groove 203.
As shown in fig. 13, a positioning block 301 is disposed on a side of the positioning adjustment block 3 away from the main scale 1, and the positioning block 301 is located at an end of the positioning adjustment block 3 away from the scale frame notch 204. One end of the positioning block 301 is fixedly connected with the positioning adjusting block 3, the other end of the positioning block 301 is provided with a positioning arc surface 302, and the positioning arc surface 302 is located at one side of the positioning block 301 facing the frame notch 204. During measurement, the bottom surface of the ruler frame 2 abuts against the upper surface 801 of the side beam, the position of the positioning adjusting block 3 is adjusted on the premise that the front end surface 206 of the ruler frame is flush with the inner side surface 802 of the side beam, the positioning arc surface 302 abuts against the outer side surface 803 of the side beam, and after the position of the positioning adjusting block 3 is adjusted, the fastening screw 4 is screwed to fix the positioning adjusting block 3.
The main scale 1, the scale frame 2, the positioning adjusting block 3 and the fastening screw 4 are all formed by processing a whole piece of materials, and the materials are preferably tool steel.
The method of implementing the present utility model is shown in fig. 14.
The auxiliary positioning ruler is zeroed: the bottom surface of the ruler frame 2 of the auxiliary positioning ruler is propped against the upper surface 801 of the side beam, the side surface of the horizontal ruler 9 is propped against the inner side surface 802 of the side beam and the front end surface 206 of the ruler frame, the position is kept stable, the position of the positioning adjusting block 3 is adjusted, the positioning arc surface 302 of the positioning block 301 is enabled to be low against the outer side surface 803 of the side beam, the fastening screw 4 is screwed down, the positioning adjusting block 3 is fixed, and the auxiliary positioning ruler zero correction is completed. Other tools or flat workpieces can be used for auxiliary positioning ruler zeroing instead of the level ruler 9.
The ultrasonic probe 5 is placed on the sleeper beam 7 to scan and detect the weld joint 6, the ultrasonic probe 5 is operated, when the reflected wave is found, the ultrasonic probe 5 is moved slightly to find the highest reflected wave, at the moment, the horizontal distance value of the reflected wave is displayed on the ultrasonic flaw detector, and the ultrasonic probe 5 is not moved any more to keep the stability of the ultrasonic reflected wave signal. The auxiliary positioning rule is operated, the bottom surface of the rule frame 2 is abutted against the upper surface 801 of the boundary beam, the positioning arc surface 302 is abutted against the outer side 803 of the boundary beam, the boss 101 on the main rule 1 is stirred until the front end face 103 of the main rule is contacted with the front end face 501 of the ultrasonic probe, and at the moment, the reading of the auxiliary positioning rule is the horizontal distance from the front end face 501 of the ultrasonic probe to the inner side 802 of the boundary beam.
Subtracting the ultrasonic flaw detector horizontal distance display value from the auxiliary positioning ruler reading value, wherein the difference value of the two is the horizontal distance that the actual reflection point of the reflected wave deviates from the boundary beam welding seam fusion surface 602 (the same surface as the boundary beam inner side surface 802), if the difference value is positive, the reflection point deviates from the sleeper beam 7 side at the boundary beam welding seam fusion surface 602, and if the difference value is negative, the reflection point deviates from the boundary beam 8 side at the boundary beam welding seam fusion surface 602.
The foregoing examples are set forth in order to provide a more thorough description of the present utility model and are not intended to limit the scope of the utility model, and various modifications of the utility model, which are equivalent to those skilled in the art upon reading the present utility model, will fall within the scope of the utility model as defined in the appended claims.
Claims (9)
1. The utility model provides a welding seam ultrasonic detection horizontal position auxiliary positioning chi, includes main scale (1), chi frame (2), its characterized in that, be provided with first spout (201) on chi frame (2), there is the interval bottom of first spout (201) and chi frame (2), main scale (1) are through first spout (201) and chi frame (2) sliding connection, main scale (1) upper surface is provided with main scale mark (102), the one end of chi frame (2) orientation main scale zero scale mark (104) is provided with chi frame breach (204), chi frame breach (204) are located one side that main scale (1) was kept away from to chi frame (2).
2. The auxiliary positioning ruler according to claim 1, wherein one end of the upper surface of the ruler frame (2) facing the main ruler zero graduation line (104) is provided with ruler frame graduation lines (205), the number of the ruler frame graduation lines (205) is 10, the interval between adjacent ruler frame graduation lines (205) is 0.9mm, and the interval between adjacent main ruler graduation lines (102) is 1mm.
3. Auxiliary positioning ruler according to claim 1, characterized in that the surface of the main ruler (1) is provided with a plurality of bosses (101), the bosses (101) being evenly distributed along the length direction of the main ruler (1).
4. Auxiliary positioning ruler according to claim 1, characterized in that a groove (202) is provided in the first runner (201).
5. Auxiliary positioning ruler according to any of claims 1-4, characterized in that a second chute (203) is provided on the ruler frame (2), which second chute (203) is located at the side of the ruler frame (2) remote from the main ruler (1).
6. The auxiliary positioning ruler according to claim 5, wherein a positioning adjusting block (3) is arranged in the second sliding groove (203), and the positioning adjusting block (3) is slidably connected with the second sliding groove (203).
7. The auxiliary positioning ruler according to claim 6, wherein a threaded hole (207) is formed in the side wall of the ruler frame (2), a fastening screw (4) is arranged in the threaded hole (207), and the fastening screw (4) is tightly abutted to the positioning adjusting block (3) through the contact of the threaded hole (207) and enables the positioning adjusting block (3) to be fixed in position in the second sliding groove (203).
8. The auxiliary positioning rule according to claim 6, wherein a positioning block (301) is arranged on one side of the positioning adjusting block (3) away from the main rule (1), and the positioning block (301) is located at one end of the positioning adjusting block (3) away from the rule frame notch (204).
9. The auxiliary positioning ruler according to claim 8, wherein one end of the positioning block (301) is fixedly connected with the positioning adjusting block (3), the other end of the positioning block (301) is provided with a positioning circular arc surface (302), and the positioning circular arc surface (302) is located on one side, facing the ruler frame notch (204), of the positioning block (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321408290.4U CN220170107U (en) | 2023-06-05 | 2023-06-05 | Auxiliary positioning ruler for ultrasonic detection of horizontal position of welding line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321408290.4U CN220170107U (en) | 2023-06-05 | 2023-06-05 | Auxiliary positioning ruler for ultrasonic detection of horizontal position of welding line |
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| Publication Number | Publication Date |
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| CN220170107U true CN220170107U (en) | 2023-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321408290.4U Active CN220170107U (en) | 2023-06-05 | 2023-06-05 | Auxiliary positioning ruler for ultrasonic detection of horizontal position of welding line |
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| Country | Link |
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| CN (1) | CN220170107U (en) |
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2023
- 2023-06-05 CN CN202321408290.4U patent/CN220170107U/en active Active
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