Scanning device for phased array ultrasonic detection of T-shaped welded joint

Abstract

The utility model discloses a scanning device for phased array ultrasonic detection of a T-shaped welded joint, which relates to the technical field of nondestructive testing and comprises a track parallel to the length direction of a weld joint and a sliding support slidably mounted on the track and used for mounting a detection probe. The sliding support comprises a base installed on the track in a sliding mode and a supporting frame fixed to the upper portion of the base. A driving structure is arranged on the base and drives the base to slide along the track; the detection probe is movably installed on the supporting frame and faces the welding seam position. After the structure is adopted, the detection probe is installed on the supporting frame, then the supporting frame is driven by the base to slide along the track, and the track is parallel to the welding seam, so that the detection probe always moves along the preset position, and the situation that the detection probe is damaged during manual operation is avoided. The problem that the detection probe deviates from the scanning position due to the fact that the hand of an operator is unstable is solved, and the accuracy of the detection result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nondestructive testing, in particular to a scanning device for phased array ultrasonic testing of T-shaped welded joints. Background Art

[0002] A T-shaped welded joint is a welded joint formed by aligning the wing plate and the web plate perpendicular to each other and welding the joint between them. In order to ensure the quality of T-shaped welded joints, phased array ultrasonic waves are usually used to detect the weld between the two. During the detection, the detection probe needs to scan along the length of the weld, and the distance between the detection probe and the center of the weld needs to remain unchanged during the scanning process. Currently, the weld is inspected by the operator holding the detection probe. This method may cause the detection probe to deviate from the scanning position due to the operator's unstable hand. The deviation of the detection probe is usually required to be no more than 5% of the distance between the detection probe and the center of the weld. If the distance between the detection probe and the center of the weld is close, the allowable range of this deviation is small. Therefore, it is difficult to ensure that the detection probe will not deviate during manual operation. If the deviation is large, it will affect the accuracy of the detection result. Utility Model Content

[0003] The purpose of the utility model is to provide a scanning device for phased array ultrasonic detection of T-shaped welded joints. By setting a track parallel to the length direction of the weld and a fixed bracket sliding along the track, the detection probe is fixed on the fixed bracket, so that the detection probe is always moved along the preset position, thereby improving the accuracy and efficiency of phased array detection scanning image acquisition and making the detection results more accurate.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a scanning device for phased array ultrasonic detection of T-shaped welded joints, comprising a track arranged parallel to the length direction of the weld and a sliding bracket slidably mounted on the track and used to install a detection probe; the sliding bracket comprises a base slidably mounted on the track and a support frame fixed above the base; a driving structure is provided on the base, and the driving structure drives the base to slide along the track; the detection probe is movably mounted on the support frame and faces the weld position.

[0005] After adopting the above structure, the detection probe is installed on the support frame, and then the support frame slides along the track driven by the base, and the track is set parallel to the weld, so that the detection probe always moves along the preset position, thereby avoiding the situation where the detection probe deviates from the scanning position due to the operator's unstable hand during manual operation, thereby improving the accuracy of the detection results.

[0006] In order to achieve stable and firm fixation of the track and avoid track displacement, strong magnets are evenly arranged on the bottom of the track, and the strong magnets are attracted to the wing plates.

[0007] In order to further strengthen the fixation of the track and prevent it from shifting, magnetic strips are fixed at both ends of the track. The magnetic strips are bent downward and adsorbed on the back of the wing plate.

[0008] In order to achieve stable support for the sliding bracket, two rails are provided in parallel, and the two rails are respectively located on both sides of the sliding bracket.

[0009] In order to prevent the sliding bracket from derailing after sliding to both ends of the track, limit rods are provided at both ends of the track.

[0010] In order to achieve stable forward movement of the sliding bracket, simplify the driving structure, and facilitate the installation of the scanning device, the driving structure includes running wheels rotatably installed on both sides of the base and a driving motor embedded in the base to drive the running wheels to rotate; the running wheels move along the tracks on their corresponding sides.

[0011] In order to realize the lifting and lowering of the detection probe, the support frame includes a support vertical plate fixed vertically on the base and a slider installed on the support vertical plate for sliding up and down. A locking device for locking the height of the slider is provided between the support vertical plate and the slider; the detection probe is movably installed on the slider.

[0012] In order to stably lock the height of the slider and facilitate precise control of the height, the locking device includes positioning grooves equidistantly spaced vertically on the supporting plate and positioning columns movably mounted on the slider. The positioning columns can be inserted into any positioning groove.

[0013] In order to achieve balanced force, a group of positioning grooves are provided on both sides of the supporting vertical plate, and two corresponding positioning columns are also provided, one on each side of the slider; the two positioning columns are connected through a transmission structure; the transmission structure includes a threaded column rotatably installed on the slider, and a knob is fixed on one end of the threaded column extending out of the slider; the surface of the threaded column is provided with two sections of threads with opposite rotation directions, and a nut is tightened on each section of the thread, and the nut is slidably installed on the slider; the two positioning columns are fixed on different nuts respectively.

[0014] In order to facilitate the angle adjustment of the detection probe, the mounting frame includes a support frame and a chuck rotatably mounted on the support frame. A locking bolt is rotatably mounted on one side of the rotating shaft of the chuck on the support frame, and the inner end of the locking bolt is tightened against the chuck; the detection probe is fixed on the chuck.

[0015] After adopting the above technical solution, the beneficial effects of the utility model are:

[0016] The utility model discloses a scanning device for phased array ultrasonic detection of T-shaped welded joints, which solves the technical problem in the prior art that, during phased array ultrasonic detection of T-shaped welded joints, manual support of the detection probe is prone to instability due to factors such as hand shaking or fatigue, thereby causing inaccurate measurement results. The utility model fixes the detection probe on the fixed bracket by providing a track parallel to the length direction of the weld and a fixed bracket sliding along the track, thereby realizing that the detection probe always moves along the preset position, improving the accuracy and efficiency of phased array detection scanning image acquisition, and making the detection results more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the use scenario of the utility model.

[0018] Figure 2 This is a schematic diagram of the overall structure of the utility model from the first perspective;

[0019] Figure 3 This is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0020] Figure 4 This is a schematic structural diagram of the driving device of the utility model from the first perspective;

[0021] Figure 5 This is a schematic structural diagram of the driving device of the utility model from a second perspective;

[0022] Figure 6 This is a schematic diagram of the lifting mechanism structure of the utility model;

[0023] In the figure, 11, web, 12, wing plate, 2, track, 21, strong magnet, 22, magnetic strip, 23, limit rod, 3, sliding bracket, 31, base, 311, walking wheel, 32, support frame, 321, support vertical plate, 322, slider, 323, locking device, 3231, positioning groove, 3232, positioning column, 3233, threaded column, 3234, knob, 324, mounting frame, 3241, support frame, 3242, chuck, 3243, locking bolt, 4, detection probe. DETAILED DESCRIPTION

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] The orientations mentioned in this specification are based on the orientations of the scanning device for phased array ultrasonic detection of T-shaped welded joints of the present invention during normal operation, and do not limit the orientations during storage and transportation. They only represent relative positional relationships, not absolute positional relationships.

[0026] like Figure 1As shown, the T-shaped welded joint includes a web 11 and a wing 12 , and the web 11 is vertically welded to the wing 12 .

[0027] like Figure 1 and Figure 2 As shown together, a scanning device for phased array ultrasonic testing of T-shaped welded joints is arranged on one side of the weld of the web 11 and the wing plate 12 to detect the quality of the weld.

[0028] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown together, a scanning device for phased array ultrasonic detection of T-shaped welded joints includes a track 2 parallel to the length direction of the weld and a sliding bracket 3 slidably mounted on the track 2 and used to mount a detection probe 4.

[0029] The track 2 is fixed to the wing 12 of the T-shaped welded joint; strong magnets 21 are evenly provided on the bottom of the track 2, and the strong magnets 21 are attracted to the wing 12; magnetic strips 22 are fixed to both ends of the track 2, and the magnetic strips 22 are bent downward and adsorbed on the back of the wing 12. Through the dual action of the strong magnets 21 and the magnetic strips 22, the track 2 is ensured not to shift during the sliding process of the sliding bracket 3 along the track 2, thereby ensuring the accuracy of the scanning results of the detection probe 4. There are two parallel tracks 2, and the two tracks 2 are located on both sides of the sliding bracket 3, thereby achieving stable support for the sliding bracket 3. In order to prevent the sliding bracket 3 from derailing, limit rods 23 are provided at both ends of the track 2.

[0030] like Figure 4 and Figure 5 As shown, the sliding bracket 3 includes a base 31 slidably mounted on the track 2 and a support frame 32 fixed above the base 31. The base 31 is provided with a drive mechanism that drives the base 31 to slide along the track 2. The drive mechanism can adopt a traction drive mode. In this embodiment, to simplify the installation process of the device, the drive mechanism includes running wheels 311 rotatably mounted on both sides of the base 31 and a drive motor embedded in the base 31 to drive the running wheels 311. Two running wheels 311 are installed on each side, and the running wheels 311 move along the track 2 on the corresponding side.

[0031] like Figure 4 、 Figure 5 and Figure 6As shown together, the support frame 32 includes a support plate 321 vertically fixed to the base 31 and a slider 322 slidably mounted on the support plate 321. A locking device 323 is provided between the support plate 321 and the slider 322 for locking the height of the slider 322. The locking device 323 can be a bolt-tightening method, that is, a bolt hole is opened on the slider 322. When the height of the slider 322 is appropriate, a bolt is screwed into the bolt hole, and the inner end of the bolt is tightened against the support plate 321, thereby achieving a fixed height of the slider 322.

[0032] In order to achieve higher locking stability and ensure more accurate locking height, a number of positioning grooves 3231 are opened at equal intervals in the vertical direction on the supporting plate 321, and a positioning column 3232 is installed at the inner end of the bolt. When the bolt is tightened, the positioning column 3232 can be pushed into any positioning groove 3231.

[0033] In order to ensure that the force on the slider 322 is more balanced and the locking stability is higher, a set of positioning grooves 3231 are provided on both sides of the support plate 321, and two corresponding positioning columns 3232 are also provided, one on each side of the slider 322. In order to achieve rapid locking, the two positioning columns 3232 are connected by a transmission structure. In this embodiment, the transmission structure includes a threaded column 3233 rotatably mounted on the slider 322, and a knob 3234 is fixed to one end of the threaded column 3233 extending from the slider 322; the surface of the threaded column 3233 is provided with two sections of threads with opposite rotation directions, and a nut is tightened on each section of the thread, and the nut is slidably mounted on the slider 322; the two positioning columns 3232 are respectively fixed to different nuts; when the knob 3234 is turned, the threaded column 3233 rotates, driving the two nuts to slide relative to each other, thereby driving the two positioning columns 3232 to clamp the support plate 321 and insert into the corresponding positioning grooves 3231, thereby achieving the height locking of the slider 322.

[0034] A mounting bracket 324 is fixedly mounted on the slider 322, and the detection probe 4 is mounted on the mounting bracket 324. The mounting bracket 324 includes a support frame 3241 and a chuck 3242 rotatably mounted on the support frame 3241. A locking bolt 3243 is rotatably mounted on the support frame 3241, located on one side of the rotation axis of the chuck 3242. The inner end of the locking bolt 3243 abuts against the chuck 3242. To adjust the angle of the chuck 3242, the locking bolt 3243 is loosened and the chuck 3242 is rotated. When the angle is adjusted, the locking bolt 3243 is tightened, and the inner end of the locking bolt 3243 abuts against the chuck 3242, thereby locking the chuck 3242 in position. The detection probe 4 is fixed to the chuck 3242 and adjusts the scanning angle as the chuck 3242 adjusts, oriented toward the weld.

[0035] Through the above structure, the detection probe 4 is movably mounted on the support frame 32, and the functions of lifting and lowering and angle adjustment are realized.

[0036] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A scanning device for phased array ultrasonic testing of T-shaped welded joints, characterized by: It comprises a track arranged parallel to the length direction of the weld and a sliding bracket slidably mounted on the track and used for mounting a detection probe; The sliding bracket includes a base slidably mounted on the track and a support frame fixed above the base; a driving structure is provided on the base, and the driving structure drives the base to slide along the track; The detection probe is movably mounted on the support frame and faces the weld position.

2. The scanning device for phased array ultrasonic testing of T-shaped welded joints according to claim 1, characterized in that: Strong magnets are evenly arranged on the bottom of the track, and the strong magnets are attracted to the wing plates.

3. The scanning device for phased array ultrasonic testing of T-shaped welded joints according to claim 2, characterized in that: Magnetic strips are fixedly provided at both ends of the track, and the magnetic strips are bent downward and adsorbed on the back side of the wing plate.

4. The scanning device for phased array ultrasonic testing of T-shaped welded joints according to claim 1, characterized in that: Two rails are arranged in parallel, and the two rails are respectively located on both sides of the sliding bracket.

5. The scanning device for phased array ultrasonic testing of T-shaped welded joints according to claim 1, characterized in that: Limit rods are provided at both ends of the track.

6. The scanning device for phased array ultrasonic testing of T-shaped welded joints according to claim 4, characterized in that: The driving structure includes running wheels rotatably mounted on both sides of the base and a driving motor embedded in the base for driving the running wheels to rotate; the running wheels run along the tracks on the corresponding sides thereof.

7. The scanning device for phased array ultrasonic testing of T-shaped welded joints according to claim 1, characterized in that: The support frame includes a support vertical plate fixed vertically on the base and a slider installed on the support vertical plate for sliding up and down. A locking device for locking the height of the slider is provided between the support vertical plate and the slider; the detection probe is movably installed on the slider.

8. The scanning device for phased array ultrasonic testing of T-shaped welded joints according to claim 7, characterized in that: The locking device includes positioning grooves that are evenly spaced in the vertical direction on the supporting plate and positioning posts that are movably mounted on the slider, and the positioning posts can be inserted into any of the positioning grooves.

9. The scanning device for phased array ultrasonic testing of T-shaped welded joints according to claim 8, characterized in that: A group of positioning grooves are respectively provided on both sides of the supporting vertical plate, and two corresponding positioning columns are also provided, which are respectively located on both sides of the slider; the two positioning columns are connected by a transmission structure; the transmission structure includes a threaded column rotatably installed on the slider, and a knob is fixed on one end of the threaded column extending out of the slider; the surface of the threaded column is provided with two sections of threads with opposite rotation directions, and a nut is tightened on each section of the thread, and the nut is slidably installed on the slider; the two positioning columns are respectively fixed on different nuts.

10. The scanning device for phased array ultrasonic testing of T-shaped welded joints according to claim 9, characterized in that: A mounting frame is fixedly mounted on the slider, and the mounting frame includes a support frame and a chuck rotatably mounted on the support frame. A locking bolt is rotatably mounted on the support frame on one side of the rotating shaft of the chuck, and the inner end of the locking bolt is tightened against the chuck; the detection probe is fixed on the chuck.

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