Weld joint detection device for metal structure manufacturing

Abstract

The utility model provides a weld joint detection device for metal structure manufacturing, which relates to the technical field of weld joint detection and comprises a base, a portal frame fixedly mounted at the top of the base, an electric guide rail fixedly mounted at the top in the portal frame, an electric push rod fixedly mounted at the bottom of a moving table of the electric guide rail, and a mounting head fixedly connected to the bottom end of the electric push rod. An ultrasonic probe is arranged below the mounting head, and a mounting plate is fixedly connected to the top of the base. When the device is used for detecting a steel pipe, the steel pipe is clamped on the clamping assembly, the steel pipe is fixed through the clamping assembly, the steel pipe can be rotated to adjust the state so as to detect a welding seam, and the angle of the ultrasonic probe can be adjusted through the adjusting assembly so as to adapt to the state of the welding seam of the steel pipe; the ultrasonic probe can face the weld joint at a proper angle, and the problem that weld joint defects at some positions cannot be detected due to the angle problem is solved.

Description

Technical Field

[0001] This utility model relates to the field of weld inspection technology, specifically a weld inspection device for metal structure manufacturing. Background Technology

[0002] In modern industry, steel pipe systems are widely used as an important component of fluid transmission. The welding quality of the joints, especially between the steel pipe and the flange, directly affects the safety and reliability of the entire system. Currently, the most widely used flaw detection method in China is still manual flaw detection. This method involves continuously moving the ultrasonic probe on the outer surface of the steel pipe using a non-destructive testing device to ensure the incident position of the ultrasonic beam. Finally, the nature of the weld defect is determined based on the echo waveform. However, in manual flaw detection, the non-destructive testing device is mostly held by hand. Generally, the operator holds the steel pipe to be tested with one hand and moves the ultrasonic probe around the outer surface of the steel pipe with the other hand. During the test, the steel pipe may wobble due to the operator's hand shaking or loosening, making it difficult to fix properly and affecting the overall testing efficiency and accuracy.

[0003] To address the aforementioned issues, a search revealed a Chinese national patent publication number "CN202121952758.7" for a motion-stabilized weld non-destructive testing device. This device effectively adjusts the ultrasonic probe's position based on the thickness and fixed location of the steel pipe, ensuring contact between the probe and the pipe surface and thus guaranteeing the accuracy of the non-destructive testing. However, some problems remain in practical use. The ultrasonic probe's orientation is fixed, making it difficult to align with weld seams on flanged or tee-shaped steel pipes. This limits the device's practicality, limiting its application to arc-shaped weld seams. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a weld inspection device for metal structure manufacturing. When inspecting a steel pipe, the steel pipe is clamped onto a clamping assembly, which fixes the steel pipe and allows the steel pipe to be rotated to adjust its state for easy inspection of the weld. The angle of the ultrasonic probe can be adjusted by the adjustment assembly to adapt to the state of the steel pipe weld, so that the ultrasonic probe can be aligned with the weld at a suitable angle, avoiding the problem that weld defects in some locations cannot be detected due to angle issues.

[0005] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0006] A weld inspection device for metal structure manufacturing includes: a base, a gantry frame fixedly installed on the top of the base, an electric guide rail fixedly installed on the top of the gantry frame, an electric push rod fixedly installed on the bottom of the moving platform of the electric guide rail, an installation head fixedly connected to the bottom end of the electric push rod, an ultrasonic probe provided below the installation head, and an installation plate fixedly connected to the top of the base.

[0007] An adjustment assembly, disposed on the mounting head, is used to adjust the angle of the ultrasonic probe. The adjustment assembly includes: a connecting block, a deflection plate, a protective cover, a bevel gear a, a stepper motor, and a bevel gear b.

[0008] A clamping assembly, disposed on the mounting plate, is used to clamp workpieces. The clamping assembly includes: a rotary disk, a mounting cylinder, a moving groove, a scissor frame, and a support plate.

[0009] Furthermore, a connecting block is fixedly connected to the bottom of the mounting head, and a deflection plate is fixedly connected to the top of the ultrasonic probe. The deflection plate is rotatably connected inside the connecting block. A protective cover is fixedly installed on one side of the connecting block. The rotation shaft of the deflection plate extends into the protective cover and is fixedly connected to a bevel gear a. A stepper motor is provided inside the mounting head. The drive shaft of the stepper motor extends into the protective cover and is fixedly connected to a bevel gear b. The bevel gear b meshes with the bevel gear a.

[0010] Furthermore, a rotating disk is provided on one side of the mounting plate, and a mounting cylinder is fixedly connected to one side of the rotating disk. Three equally spaced movable slots are provided on the outside of the mounting cylinder, and a pair of scissor frames are provided inside each of the three movable slots. Support plates are connected to the top two ends of each scissor frame.

[0011] Furthermore, retainers are fixedly installed at opposite ends inside the mounting cylinder, and a rotating rod is rotatably connected between the two retainers. The rotating rod has a thread on its outer side near one end, and a movable ring is threaded onto the outer side of the thread.

[0012] Furthermore, the bottom ends of the three scissor arms are respectively connected to the moving ring and the retainer near the rotating disk.

[0013] Furthermore, the rotating disk has an internal mounting cavity, on which a drive motor a is fixedly mounted, and on one side of the mounting plate, a drive motor b is fixedly mounted, with the drive shaft of the drive motor b connected to one side of the rotating disk.

[0014] Furthermore, the base contains a main unit, a mounting bracket and a control panel are fixedly installed on one side of the gantry frame, and a display screen is fixedly installed on one side of the mounting bracket.

[0015] The beneficial effects of this utility model are:

[0016] The advantage of this invention is that when inspecting a steel pipe, the steel pipe is clamped onto the clamping assembly, which fixes the steel pipe in place and allows the steel pipe to be rotated to adjust its state, thus facilitating the inspection of the weld. The angle of the ultrasonic probe can be adjusted by the adjustment assembly to adapt to the state of the steel pipe weld, ensuring that the ultrasonic probe is aimed at the weld at a suitable angle, avoiding the problem of not being able to detect weld defects in some locations due to angle issues. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the mounting head structure of this utility model.

[0020] Figure 4 This is a schematic diagram of the mounting cylinder structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the rotating rod structure of this utility model.

[0022] Figure 6 For the present utility model Figure 2 Enlarged view of point A in the middle.

[0023] Figures 1-6 Components: 1. Base; 11. Gantry; 12. Electric guide rail; 13. Electric push rod; 14. Mounting head; 15. Ultrasonic probe; 16. Mounting plate; 2. Connecting block; 21. Deflection plate; 22. Protective cover; 23. Bevel gear a; 24. Stepper motor; 25. Bevel gear b; 3. Rotary disk; 31. Mounting cylinder; 32. Moving slot; 33. Scissor bracket; 34. Support plate; 35. Retainer; 36. Rotating rod; 37. Thread; 38. Moving ring; 39. Mounting cavity; 310. Drive motor a; 311. Drive motor b; 4. Main unit; 41. Mounting bracket; 42. Control panel; 43. Display screen. Detailed Implementation

[0024] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] like Figures 1-6 As shown, a weld inspection device for metal structure manufacturing includes: a base 1, a gantry frame 11 fixedly mounted on the top of the base 1, an electric guide rail 12 fixedly mounted inside the top of the gantry frame 11, an electric push rod 13 fixedly mounted on the bottom of the moving platform of the electric guide rail 12, a mounting head 14 fixedly connected to the bottom end of the electric push rod 13, an ultrasonic probe 15 disposed below the mounting head 14, and a mounting plate 16 fixedly connected to the top of the base 1; an adjustment assembly disposed on the mounting head 14 for adjusting the angle of the ultrasonic probe 15; and a clamping assembly disposed on the mounting plate 16 for clamping the workpiece.

[0028] The base 1 contains a main unit 4, and a mounting bracket 41 and a control panel 42 are fixedly installed on one side of the gantry frame 11. A display screen 43 is fixedly installed on one side of the mounting bracket 41.

[0029] When inspecting the weld between a steel pipe and a flange, or the weld between multiple connected steel pipes, the steel pipe is installed on the clamping assembly and fixed in a horizontal position for easy inspection. Then, the electric guide rail 12 is activated, driving the electric push rod 13 and the ultrasonic probe 15 to move to the weld of the steel pipe. Since the weld is irregular in shape, the angle of the ultrasonic probe 15 is adjusted by adjusting the assembly so that it is directly facing the weld for easy inspection of the weld quality. This avoids the problem that weld defects in some locations cannot be detected due to angle issues. The ultrasonic probe 15 captures images of the weld, which are analyzed by the host 4 to identify weld defects. The inspection data is then uploaded to the display screen 43 for observation.

[0030] Example 2

[0031] Based on Embodiment 1, the adjustment components include: a connecting block 2, a deflection plate 21, a protective cover 22, a bevel gear a23, a stepper motor 24, and a bevel gear b25. The connecting block 2 is fixedly connected to the bottom of the mounting head 14, and the deflection plate 21 is fixedly connected to the top of the ultrasonic probe 15. The deflection plate 21 is rotatably connected to the inside of the connecting block 2. The protective cover 22 is fixedly installed on one side of the connecting block 2. The rotation shaft of the deflection plate 21 extends into the inside of the protective cover 22 and is fixedly connected to the bevel gear a23. The stepper motor 24 is provided inside the mounting head 14. The drive shaft of the stepper motor 24 extends into the inside of the protective cover 22 and is fixedly connected to the bevel gear b25. The bevel gear b25 meshes with the bevel gear a23.

[0032] When adjusting the angle of the ultrasonic probe 15, the stepper motor 24 is started via the control panel 42. The stepper motor 24 drives the bevel gear b25 to rotate, and the bevel gear b25 meshes with the bevel gear a23. The protective cover 22 plays a protective role, preventing foreign objects from entering the bevel gear b25 when it meshes with the bevel gear a23, thereby driving the bevel gear a23 to rotate. The bevel gear a23 drives the rotating shaft of the deflection plate 21 to rotate, thereby causing the deflection plate 21 to drive the ultrasonic probe 15 to rotate. The stepper motor 24 can rotate forward and backward. The forward and reverse rotation modes and rotation degree of the stepper motor 24 can be switched via the control panel 42 to control the rotation angle of the ultrasonic probe 15, so that the ultrasonic probe 15 is facing the weld for easy inspection.

[0033] Example 3

[0034] Based on Embodiment 1, the clamping assembly includes: a rotating disk 3, a mounting cylinder 31, a moving groove 32, a scissor frame 33, and a support plate 34. A rotating disk 3 is provided on one side of the mounting plate 16, and a mounting cylinder 31 is fixedly connected to one side of the rotating disk 3. Three equidistant moving grooves 32 are provided on the outside of the mounting cylinder 31. A pair of scissor frames 33 are respectively provided inside each of the three moving grooves 32. Support plates 34 are connected to the top ends of each scissor frame 33. Retainers 35 are fixedly installed at opposite ends inside the mounting cylinder 31. The two retainers 35... A rotating rod 36 is rotatably connected between 5. A thread 37 is opened on the outside of one end of the rotating rod 36. A moving ring 38 is threaded to the outside of the thread 37. The bottom ends of the three scissor brackets 33 are respectively connected to the moving ring 38 and the retainer 35 near the side of the rotating disk 3. An installation cavity 39 is opened inside the rotating disk 3. A drive motor a310 is fixedly installed on the inner wall of the installation cavity 39. A drive motor b311 is fixedly installed on one side of the mounting plate 16. The drive shaft of the drive motor b311 is connected to one side of the rotating disk 3.

[0035] When clamping the steel pipe, the steel pipe is sleeved on the mounting sleeve 31. Then, the drive motor a310 is started clockwise via the control panel 42. The drive motor a310 drives the rotating rod 36 to rotate, and the rotating rod 36 drives the thread 37 to engage with the moving ring 38. Because the moving ring 38 is restricted by the scissor frame 33 and the moving groove 32, the moving ring 38 can only move horizontally along the moving groove 32. The moving ring 38 moves towards one side of the rotating disk 3, causing the rotating disk 3 to drive one end of the three pairs of scissor frames 33 to move closer to the other end, so that the scissor frames 33 cross-push the support plate 3. 4. Move to the circumference, and the three support plates 34 move simultaneously to abut against the inner wall of the steel pipe, thereby clamping and fixing the steel pipe. Then turn off the drive motor a310. Conversely, control the drive motor a310 to rotate counterclockwise, which will drive the moving ring 38 to move in the opposite direction, causing the two ends of the scissor frame 33 to separate, and causing the support plates 34 to retract towards the axis, thereby releasing the fixation of the steel pipe. When testing, start the drive motor b311 to drive the rotating disk 3 to rotate. When the rotating disk 3 rotates, it drives the mounting cylinder 31 to rotate. By adjusting the angle of the ultrasonic probe 15, the entire weld of the steel pipe can be tested.

[0036] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional known device such as a computer that performs control functions, and the existing publicly available power connection technologies are not described in detail in the text.

[0037] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0038] The above provides a detailed description of a weld inspection device for metal structure manufacturing provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A weld inspection device for metal structure manufacturing, characterized in that, include: A base (1) is provided, a gantry frame (11) is fixedly installed on the top of the base (1), an electric guide rail (12) is fixedly installed inside the top of the gantry frame (11), an electric push rod (13) is fixedly installed at the bottom of the moving platform of the electric guide rail (12), an installation head (14) is fixedly connected to the bottom of the electric push rod (13), an ultrasonic probe (15) is provided below the installation head (14), and an installation plate (16) is fixedly connected to the top of the base (1). An adjustment assembly is provided on the mounting head (14) for adjusting the angle of the ultrasonic probe (15). The adjustment assembly includes: a connecting block (2), a deflection plate (21), a protective cover (22), a bevel gear a (23), a stepper motor (24), and a bevel gear b (25). The clamping assembly is disposed on the mounting plate (16) and is used to clamp the workpiece. The clamping assembly includes: a rotating disk (3), a mounting cylinder (31), a moving groove (32), a scissor frame (33), and a support plate (34).

2. The weld inspection device for metal structure manufacturing according to claim 1, characterized in that, The mounting head (14) is fixedly connected to a connecting block (2) at the bottom, and the ultrasonic probe (15) is fixedly connected to a deflection plate (21) at the top. The deflection plate (21) is rotatably connected to the inside of the connecting block (2). A protective cover (22) is fixedly installed on one side of the connecting block (2). The rotation shaft of the deflection plate (21) extends into the inside of the protective cover (22) and is fixedly connected to a bevel gear a (23). A stepper motor (24) is provided inside the mounting head (14). The drive shaft of the stepper motor (24) extends into the inside of the protective cover (22) and is fixedly connected to a bevel gear b (25). The bevel gear b (25) meshes with the bevel gear a (23).

3. The weld inspection device for metal structure manufacturing according to claim 1, characterized in that, The mounting plate (16) has a rotating disk (3) on one side, and a mounting cylinder (31) is fixedly connected to one side of the rotating disk (3). The mounting cylinder (31) has three equally spaced moving slots (32) on its outside. Each of the three moving slots (32) has a pair of scissor frames (33) inside. The top two ends of the scissor frames (33) are connected to support plates (34).

4. The weld inspection device for metal structure manufacturing according to claim 1, characterized in that, Inside the mounting cylinder (31), there are retainers (35) fixedly installed at opposite ends. A rotating rod (36) is rotatably connected between the two retainers (35). The rotating rod (36) has a thread (37) on its outer side near one end. A movable ring (38) is threaded to the outer side of the thread (37).

5. The weld inspection device for metal structure manufacturing according to claim 4, characterized in that, The bottom ends of the three scissor arms (33) are respectively connected to the moving ring (38) and the retainer (35) near the rotating disk (3).

6. The weld inspection device for metal structure manufacturing according to claim 1, characterized in that, The rotating disk (3) has an installation cavity (39) inside. A drive motor a (310) is fixedly installed on the inner wall of the installation cavity (39). A drive motor b (311) is fixedly installed on one side of the mounting plate (16). The drive shaft of the drive motor b (311) is connected to one side of the rotating disk (3).

7. The weld inspection device for metal structure manufacturing according to claim 1, characterized in that, The base (1) is equipped with a host (4), and a mounting bracket (41) and a control panel (42) are fixedly installed on one side of the gantry (11). A display screen (43) is fixedly installed on one side of the mounting bracket (41).

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