Ultrasonic detection device for welding seam of steel structure

Abstract

The utility model belongs to the technical field of detection devices, and particularly relates to a steel structure welding seam ultrasonic detection device which mainly comprises a linear motor, an adjusting mechanism is arranged at the bottom end of the linear motor, a supporting frame is installed at the moving end of the linear motor, a rotating mechanism is arranged at the upper end of the supporting frame, and the rotating mechanism comprises a C-shaped installation frame. The bottom end of the C-shaped mounting frame is connected with the top end of the supporting frame, a plurality of guide wheels are rotationally connected to one side of the C-shaped mounting frame and distributed in an annular array mode, a C-shaped fluted disc is arranged among the guide wheels in a sleeving mode, a conductive sliding groove is formed in one side of the C-shaped mounting frame, a conductive piece is installed on one side of the C-shaped fluted disc, and the conductive piece is connected with the bottom end of the C-shaped mounting frame. The conducting strip is slidably connected with the conducting sliding groove, and a detection mechanism is installed on one side of the C-shaped fluted disc. According to the utility model, the practicability of the ultrasonic detection device for the welding seam of the steel structure can be effectively improved, and the practical value is higher.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, and in particular to an ultrasonic testing device for steel structure welds. Background Technology

[0002] In many fields such as steel structure construction, bridges, and machinery manufacturing, the quality of steel structure welds is of paramount importance. Defects in welds, such as cracks, porosity, and slag inclusions, can seriously affect the strength, stability, and safety of steel structures. Ultrasonic testing technology has been widely used in the inspection of steel structure welds due to its advantages such as ease of operation, relatively low cost, and no harm to the human body.

[0003] Based on the above, the following problems were found: During the actual construction of steel structures, due to the complexity of design requirements and construction technology, the welds exhibit a wide variety of shapes. In terms of location, the welds may be in different orientations such as horizontal, vertical, and inclined, and are distributed on different surfaces and corners of the components. This makes it difficult to ensure that the detection probe can uniformly and accurately cover the entire weld area during ultrasonic testing. Therefore, it is necessary to constantly rotate and move the steel structure components so that the ultrasonic flaw detector can inspect the weld area, which is very inconvenient. For some large and heavy steel structure components, the moving operation itself poses a significant safety risk and can easily lead to safety accidents. Utility Model Content

[0004] This invention addresses the shortcomings of existing technologies by developing an ultrasonic testing device for steel structure welds, which facilitates the testing of welds at different locations on steel structure components.

[0005] The technical solution of this utility model to solve the technical problem is as follows: an ultrasonic testing device for steel structure welds, including a linear motor, an adjustment mechanism at the bottom of the linear motor, a support frame installed at the moving end of the linear motor, a rotating mechanism at the upper end of the support frame, the rotating mechanism including a C-shaped mounting frame, the bottom end of the C-shaped mounting frame being connected to the top end of the support frame, a plurality of guide wheels being rotatably connected to one side of the C-shaped mounting frame, the plurality of guide wheels being distributed in a circular array, a C-shaped toothed disc being sleeved between the plurality of guide wheels, a conductive groove being opened on one side of the C-shaped mounting frame, a conductive sheet being installed on one side of the C-shaped toothed disc, the conductive sheet being slidably connected to the conductive groove, and a testing mechanism being installed on one side of the C-shaped toothed disc.

[0006] Preferably, the detection mechanism includes a fixed frame, one side of which is connected to one side of the C-shaped toothed disc, and a telescopic rod is inserted at the center of the fixed frame.

[0007] The beneficial effect of adopting the above-mentioned further solution is that by installing a telescopic rod, the front and rear positions of the ultrasonic flaw detector can be easily adjusted, enabling it to perform weld inspection on steel structure components of different sizes.

[0008] Preferably, a first servo motor is installed at one end of the telescopic rod, and a movable seat is fitted onto the output end of the first servo motor. An ultrasonic flaw detector is rotatably connected inside the movable seat.

[0009] The beneficial effect of adopting the above-mentioned further solution is that by installing the first servo motor, it can drive the movable seat to rotate when it is working, thereby adjusting the direction of the ultrasonic flaw detector. Furthermore, the internal rotational connection between the ultrasonic flaw detector and the movable seat also facilitates the adjustment of the angle of the ultrasonic flaw detector.

[0010] Preferably, a second servo motor is installed on one side of the movable seat, and the output end of the second servo motor is connected to the ultrasonic flaw detector via transmission.

[0011] The beneficial effect of adopting the above-mentioned further solution is that by installing a second servo motor, it can drive the ultrasonic flaw detector to adjust its angle when it is working, so as to be suitable for the inspection of welds at different positions and angles on steel structure components.

[0012] Preferably, a transmission box is mounted on one side of the C-shaped mounting bracket, and a pair of gears are rotatably connected to one side of the transmission box, the gears meshing with the C-shaped gear disc.

[0013] The beneficial effect of adopting the above-mentioned further solution is that by rotatably connecting a pair of gears on one side of the transmission box and making them mesh with the C-shaped gear disk, when the gears rotate, they can drive the C-shaped gear disk to rotate, thereby controlling the ultrasonic flaw detector to rotate around the steel structure component.

[0014] Preferably, one end of each gear extends through the transmission box into the interior and is fitted with a synchronous pulley. A synchronous belt is wound between a pair of synchronous pulleys. A third servo motor is installed on one side of the transmission box, and the output end of the third servo motor is connected to one of the synchronous pulleys.

[0015] The beneficial effect of adopting the above-mentioned further solution is that by fitting a synchronous pulley on one end of the gear and winding a synchronous belt between the pair of synchronous pulleys, the pair of gears can rotate synchronously. By installing a third servo motor, it can drive one of the synchronous pulleys to rotate when it is working, thereby making the pair of gears rotate.

[0016] Preferably, the adjustment mechanism includes a base, the upper end of which is connected to the bottom end of the linear motor, and a through groove is provided on the base.

[0017] The advantage of adopting the above-mentioned further solution is that by opening through slots, it is convenient to install the mobile frame.

[0018] Preferably, a pair of movable frames are slidably installed at both ends of the through groove, a support rod is installed on one side of the upper end of each pair of movable frames, a conveying roller is rotatably connected between each pair of support rods, and movable grooves are opened on both sides of the bottom end of the movable frame, with rollers rotatably connected inside the movable grooves.

[0019] The beneficial effects of adopting the above-mentioned further solution are that by installing support rods on one side of the upper end of the mobile frame and rotatably connecting conveyor rollers between the support rods, it is convenient to support the steel structure components and also convenient for users to push the steel structure components to move. By opening a movable groove at the bottom end of the mobile frame and rotatably connecting rollers inside it, it is convenient to move the support rods and adjust the distance between a pair of conveyor rollers to support steel structure components of different lengths.

[0020] Preferably, a bidirectional lead screw is rotatably connected inside the through groove, and both ends of the bidirectional lead screw are threaded with sliders. The two sides of a pair of sliders are respectively connected to the two opposite ends of each pair of moving frames. A fourth servo motor is installed at one end of the base, and the output end of the fourth servo motor is connected to the bidirectional lead screw drive.

[0021] The beneficial effect of adopting the above-mentioned further solution is that by threading sliders to both ends of the bidirectional lead screw and connecting them to the moving frame, when the fourth servo motor is working, the bidirectional lead screw rotates, and the sliders drive the moving frame to move relative to each other, thereby adjusting the gap between a pair of conveyor rollers.

[0022] Preferably, the conductive sheet is electrically connected to the telescopic rod, the first servo motor, the second servo motor, and the ultrasonic flaw detector via wires.

[0023] The beneficial effect of adopting the above-mentioned further solution is that by electrically connecting the conductive sheet with the telescopic rod, the first servo motor, the second servo motor and the ultrasonic flaw detector through wires, the conductive sheet can always be in contact with the conductive groove when the C-shaped toothed disk rotates, thereby providing power to the detection mechanism.

[0024] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0025] This ultrasonic testing device for steel structure welds utilizes a linear motor. During operation, the moving end of the motor drives a support frame to move back and forth, causing the rotating and testing mechanisms to move as well. The testing mechanism inspects different weld locations on the steel structure component. A C-shaped mounting frame allows users to easily place the steel structure component inside for weld inspection. A rotating guide wheel array facilitates the installation of the C-shaped gear disc, which rotates between the guide wheels, thus rotating the testing mechanism to inspect welds at different locations on the steel structure component. A sliding connection between the conductive groove and the conductive sheet ensures that the rotation of the C-shaped gear disc does not affect the power supply to the testing mechanism. A first servo motor rotates the movable base, adjusting the direction of the ultrasonic flaw detector. The ultrasonic flaw detector's internal rotational connection to the movable base also facilitates angle adjustment. A second servo motor further adjusts the angle of the ultrasonic flaw detector, making it suitable for inspecting welds at different locations and angles on steel structure components. Attached Figure Description

[0026] Figure 1 This is a three-dimensional structural diagram of the ultrasonic testing device for steel structure welds disclosed in this utility model embodiment. Figure 1 ;

[0027] Figure 2 This is a three-dimensional structural diagram of the ultrasonic testing device for steel structure welds disclosed in this embodiment of the utility model. Figure 2 ;

[0028] Figure 3 This is a three-dimensional structural diagram of the rotating mechanism of the ultrasonic testing device for steel structure welds disclosed in an embodiment of the present utility model;

[0029] Figure 4 This is an enlarged structural schematic diagram of the ultrasonic testing device for steel structure welds disclosed in an embodiment of this utility model;

[0030] Figure 5 This is a first cross-sectional structural schematic diagram of the ultrasonic testing device for steel structure welds disclosed in an embodiment of this utility model.

[0031] The components include: 1. Linear motor; 2. Adjustment mechanism; 21. Base; 22. Moving frame; 23. Support rod; 24. Conveying roller; 25. Movable groove; 26. Roller; 27. Through groove; 28. Fourth servo motor; 29. ​​Slider; 210. Bidirectional lead screw; 3. Support frame; 4. Rotating mechanism; 41. C-shaped mounting frame; 42. Guide wheel; 43. C-shaped gear plate; 44. Gear; 45. Third servo motor; 46. Synchronous pulley; 47. Synchronous belt; 48. Transmission box; 49. Conductive chute; 40. Conductive sheet; 5. Detection mechanism; 51. Fixed frame; 52. Telescopic rod; 53. First servo motor; 54. Second servo motor; 55. Movable seat; 56. Ultrasonic flaw detector. Detailed Implementation

[0032] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0033] Example 1

[0034] See Figure 1 - Figure 5 An ultrasonic testing device for steel structure welds includes a linear motor 1, an adjustment mechanism 2 at the bottom of the linear motor 1, a support frame 3 mounted on the moving end of the linear motor 1, and a rotating mechanism 4 at the upper end of the support frame 3. The rotating mechanism 4 includes a C-shaped mounting frame 41, the bottom end of which is connected to the top end of the support frame 3. A plurality of guide wheels 42 are rotatably connected to one side of the C-shaped mounting frame 41, arranged in a circular array. A C-shaped toothed disc 43 is fitted between the guide wheels 42. A conductive groove 49 is provided on one side of the C-shaped mounting frame 41. A conductive sheet 40 is mounted on one side of the C-shaped toothed disc 43, and the conductive sheet 40 is slidably connected to the conductive groove 49. A testing mechanism 5 is mounted on one side of the C-shaped toothed disc 43. By installing the linear motor 1, the device enables the device to operate... During operation, the moving end drives the support frame 3 to move back and forth, thereby causing the rotating mechanism 4 and the detection mechanism 5 to move back and forth. The detection mechanism 5 is used to detect different weld positions on the steel structure component. By setting a C-shaped mounting frame 41, it is convenient for the user to place the steel structure component inside the C-shaped mounting frame 41 to detect its weld. By rotating and connecting several circular array of guide wheels 42, it is convenient to install the C-shaped toothed disk 43 and make it rotate between the guide wheels 42, thereby driving the detection mechanism 5 to rotate and detect welds at different positions on the steel structure component. By sliding the conductive groove 49 and the conductive sheet 40, the C-shaped toothed disk 43 does not affect the power supply to the detection mechanism 5 when it rotates.

[0035] like Figure 1 - Figure 5The testing mechanism 5 includes a fixed frame 51, one side of which is connected to one side of a C-shaped toothed disc 43. A telescopic rod 52 is inserted at the center of the fixed frame 51. A first servo motor 53 is installed at one end of the telescopic rod 52. A movable seat 55 is fitted onto the output end of the first servo motor 53. An ultrasonic flaw detector 56 is rotatably connected inside the movable seat 55. A second servo motor 54 is installed on one side of the movable seat 55. The output end of the second servo motor 54 is connected to the ultrasonic flaw detector 56 via a transmission. A transmission device is installed on one side of the C-shaped mounting frame 41. The transmission box 48 has a pair of gears 44 rotatably connected to one side. The gears 44 mesh with the C-shaped gear disk 43. One end of each gear 44 extends through the transmission box 48 and is fitted with a synchronous pulley 46. A synchronous belt 47 is wound between the pair of synchronous pulleys 46. A third servo motor 45 is installed on one side of the transmission box 48. The output end of the third servo motor 45 is connected to one of the synchronous pulleys 46. By installing a telescopic rod 52, the front and rear positions of the ultrasonic flaw detector 56 can be easily adjusted, allowing it to detect different... For weld inspection of steel structural components of various sizes, a first servo motor 53 is installed, which drives the movable base 55 to rotate, thereby adjusting the direction of the ultrasonic flaw detector 56. The ultrasonic flaw detector 56 is internally rotatably connected to the movable base 55, which also facilitates the adjustment of the angle of the ultrasonic flaw detector 56. A second servo motor 54 is installed, which drives the ultrasonic flaw detector 56 to adjust its angle, making it suitable for weld inspection at different positions and angles on the steel structural components. A pair of gears 44 are rotatably connected to one side of the transmission box 48, which meshes with the C-shaped gear disk 43. When the gears 44 rotate, they drive the C-shaped gear disk 43 to rotate, thereby controlling the ultrasonic flaw detector 56 to rotate around the steel structural component. A synchronous pulley 46 is fitted onto one end of the gear 44, and a synchronous belt 47 is wound between the pair of synchronous pulleys 46, so that the pair of gears 44 can rotate synchronously. A third servo motor 45 is installed, which drives one of the synchronous pulleys 46 to rotate, thereby causing the pair of gears 44 to rotate.

[0036] like Figure 1 - Figure 5The adjusting mechanism 2 includes a base 21, the upper end of which is connected to the bottom end of the linear motor 1. A through groove 27 is provided on the base 21, and a pair of movable frames 22 are slidably mounted at both ends of the through groove 27. A support rod 23 is mounted on one side of the upper end of each pair of movable frames 22, and a conveying roller 24 is rotatably connected between each pair of support rods 23. Movable grooves 25 are provided on both sides of the bottom end of the movable frames 22, and rollers 26 are rotatably connected inside each movable groove 25. A bidirectional lead screw 21 is rotatably connected inside the through groove 27. 0. Both ends of the bidirectional lead screw 210 are threaded with sliders 29. The two sides of each pair of sliders 29 are connected to the two opposite ends of each pair of movable frames 22. A fourth servo motor 28 is installed at one end of the base 21. The output end of the fourth servo motor 28 is connected to the bidirectional lead screw 210 for transmission. The conductive sheet 40 is electrically connected to the telescopic rod 52, the first servo motor 53, the second servo motor 54, and the ultrasonic flaw detector 56 via wires. A through slot 27 is provided to facilitate the installation of the movable frame 22. A support rod 23 is installed on one side of the upper end of the movable frame 22, and a conveyor roller 24 is rotatably connected between the support rods 23 to facilitate the support of the steel structure components and to facilitate the user to move the steel structure components. A movable groove 25 is opened at the bottom end of the movable frame 22, and a roller 26 is rotatably connected inside it to facilitate the movement of the support rod 23. The distance between the pair of conveyor rollers 24 is adjusted to support steel structure components of different lengths. By threading sliders 29 to both ends of the bidirectional screw 210 and connecting them to the movable frame 22, the bidirectional screw 210 rotates when the fourth servo motor 28 is working. The sliders 29 drive the movable frame 22 to move relative to each other, thereby adjusting the distance between the pair of conveyor rollers 24. By electrically connecting the conductive sheet 40 to the telescopic rod 52, the first servo motor 53, the second servo motor 54 and the ultrasonic flaw detector 56 through wires, the conductive sheet 40 is always in contact with the conductive groove 49 when the C-shaped toothed disk 43 rotates, thus providing power to the detection mechanism 5.

[0037] Working principle

[0038] In use, based on the length of the steel structure component to be inspected, the fourth servo motor 28 is activated. The fourth servo motor 28 drives the bidirectional lead screw 210 to rotate. The slider 29, threaded at both ends of the bidirectional lead screw 210, drives the moving frame 22 to move relative to each other within the through groove 27. The spacing of the conveying rollers 24 is adjusted by the support rod 23 at the upper end of the moving frame 22 to adapt to the length of the steel structure component. Then, the steel structure component is placed on the conveying rollers 24. The linear motor 1 is activated. The moving end of the linear motor 1 drives the support frame 3 to move back and forth, thereby driving the rotating mechanism 4 and the detection mechanism 5 to move, bringing the detection mechanism 5 closer to the weld. Based on the size of the steel structure component, the length of the telescopic rod 52 is adjusted to place the ultrasonic flaw detector 56 at a suitable detection distance. The third servo motor 45 is activated. The third servo motor 45 drives the synchronous pulley 46 to rotate. Through the synchronous belt 47, a pair of gears 44 rotate synchronously. The gears 44 mesh with the C-shaped gear disk 43, driving the C-shaped gear disk 43 to rotate, thereby enabling the detection... Mechanism 5 rotates around the steel structure component, adjusting the detection direction of the ultrasonic flaw detector 56 to align it with the weld. Simultaneously, the first servo motor 53 is activated, driving the movable base 55 to rotate and further fine-tune the direction of the ultrasonic flaw detector 56. The second servo motor 54 is activated, driving the ultrasonic flaw detector 56 to rotate and adjust its detection angle to adapt to weld inspection at different positions and angles. After adjusting the position, direction, and angle of the ultrasonic flaw detector 56, it is activated for inspection. During the inspection process, because the conductive plate 40 is slidably connected to the conductive groove 49, power supply to the telescopic rod 52, the first servo motor 53, the second servo motor 54, and the ultrasonic flaw detector 56 is maintained at all times, ensuring the continuous operation of the inspection. The ultrasonic flaw detector 56 emits ultrasonic waves towards the weld and receives the reflected signals, analyzes and processes the signals to determine whether there are defects in the weld and the type, location, and size of the defects.

[0039] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Based on the technical solution of the present utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the present utility model.

Claims

1. An apparatus for ultrasonic testing of a weld in a steel structure, characterized in that, The utility model relates to a linear motor (1) is provided with adjusting mechanism (2) at the bottom end, the moving end of linear motor (1) is installed with support frame (3), the upper end of support frame (3) is provided with rotating mechanism (4), rotating mechanism (4) includes C mounting bracket (41), the bottom end of C mounting bracket (41) is connected with the top end of support frame (3), one side of C mounting bracket (41) is rotatably connected with a plurality of guide wheels (42), a plurality of guide wheels (42) are annular array distribution, a plurality of guide wheels (42) are provided with C toothed disc (43) between the sleeve, one side of C toothed disc (43) is installed with conducting strip (40), conducting strip (40) and conducting slide groove (49) between slidingly connected, one side of C toothed disc (43) is installed with detection mechanism (5).

2. The apparatus for ultrasonic testing of a weld in a steel structure according to claim 1, characterized in that, The detection mechanism (5) includes a fixed frame (51), one side of the fixed frame (51) is connected with one side of the C-shaped toothed disc (43), and a telescopic rod (52) is inserted in the center of the fixed frame (51).

3. A device for ultrasonic testing of a weld in a steel structure according to claim 2, characterized in that One end of the telescopic rod (52) is provided with a first servo motor (53), the output end of the first servo motor (53) is provided with a movable seat (55), and the movable seat (55) is rotatably connected with an ultrasonic flaw detector (56) in the inside.

4. A device for ultrasonic testing of a weld in a steel structure according to claim 3, characterized in that One side of the movable seat (55) is provided with a second servo motor (54), and the output end of the second servo motor (54) is in transmission connection with the ultrasonic flaw detector (56).

5. The apparatus for ultrasonic testing of a weld in a steel structure according to claim 1, characterized in that, One side of the C-shaped mounting bracket (41) is provided with a transmission box (48), and a pair of gears (44) are rotatably connected to one side of the transmission box (48).

6. A device for ultrasonic testing of a weld in a steel structure according to claim 5, characterized in that One end of the pair of gears (44) extends to the inside through the transmission box (48) and is provided with a synchronous wheel (46), and a pair of synchronous wheels (46) are provided with a synchronous belt (47) therebetween, and a third servo motor (45) is installed on one side of the transmission box (48), and the output end of the third servo motor (45) is in transmission connection with one of the synchronous wheels (46).

7. The apparatus for ultrasonic testing of a weld in a steel structure according to claim 1, characterized in that, The adjusting mechanism (2) includes a base (21), and the upper end surface of the base (21) is connected with the bottom end of the linear motor (1); a through groove (27) is formed in the base (21).

8. A device for ultrasonic testing of a weld in a steel structure according to claim 7, characterized in that A pair of moving frames (22) are slidably installed at both ends of the through groove (27), a support rod (23) is installed on one side of the upper end of each pair of moving frames (22), a conveying roller (24) is rotatably connected between each pair of support rods (23), and an active groove (25) is formed in the bottom end of each moving frame (22), and a roller (26) is rotatably connected in the active groove (25).

9. A device for ultrasonic testing of a weld in a steel structure according to claim 8, characterized in that The inside of the through groove (27) is rotationally connected with a bidirectional screw rod (210), the two ends of the bidirectional screw rod (210) are threadedly connected with sliding blocks (29), the two sides of a pair of the sliding blocks (29) are connected with the two opposite ends of each pair of the moving frames (22) respectively, one end of the base (21) is provided with a fourth servo motor (28), and the output end of the fourth servo motor (28) is in transmission connection with the bidirectional screw rod (210).

10. The apparatus for ultrasonic testing of a weld in a steel structure according to claim 1, characterized in that, The conductive sheet (40) is electrically connected with the telescopic rod (52), the first servo motor (53), the second servo motor (54) and the ultrasonic flaw detector (56) through wires.

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