Nondestructive testing device and system for strip-shaped welding seam

Abstract

The invention discloses a nondestructive testing device and system for a strip-shaped welding seam, and belongs to the technical field of welding seam detection.The nondestructive testing device comprises a base, a cavity is formed in the base, a limiting assembly and an adjusting assembly are arranged on the upper surface of the base, and an air blowing assembly is arranged on the upper surface of the adjusting assembly; a knocking assembly is arranged on the inner wall of the cavity of the base; according to the device, the blowing assembly is arranged, gas in the piston barrel is conveyed into the gas outlet pipe through the connecting hose, the gas outlet pipe is driven to move through the positioning plate when the fixing barrel moves, then the gas is blown to the outer surface of the welding part through the gas outlet hole, and chippings knocked down from the welding part are cleaned; according to the detection device, the welding ash is automatically cleaned before detection, the influence of the welding ash on the detection result is avoided, the detection accuracy of the detection device on the welding seam is further ensured, secondary detection of the detection device is also avoided, the detection efficiency of the detection device is improved, and the detection stability of the detection device is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of weld detection, and in particular relates to a device and system for nondestructive detection of strip welds. Background Art

[0002] Portable ultrasonic weld defect detector can detect, locate, evaluate and diagnose various defects inside workpieces quickly, conveniently, non-destructively and accurately. It is used both in laboratories and on-site inspections. It is widely used in weld inspection in boiler and pressure vessel manufacturing, weld quality assessment in engineering machinery manufacturing, iron and steel metallurgy, steel structure manufacturing, shipbuilding, oil and gas equipment manufacturing and other fields that require defect detection and quality control.

[0003] The Chinese patent discloses a non-destructive ultrasonic detector for plate welds (N115389622B), including a U-shaped plate, a positioning clamping device and a mobile detection device. The U-shaped plate is provided with a positioning clamping device and a mobile detection device. The positioning clamping device includes a guide mechanism, a positioning mechanism, a clamping mechanism and a baffle mechanism. The rear end of the U-shaped plate is provided with a baffle mechanism, the left side of the U-shaped plate is provided with a clamping mechanism, and the right side of the U-shaped plate is provided with a guide mechanism and a positioning mechanism from front to back. The present invention can mark the position of the abnormal weld with paint when detecting the plate weld by an ultrasonic detector, so that subsequent staff can quickly and accurately find the position of the weld abnormality. At the same time, the present invention transports the plate on the U-shaped plate in an assembly line manner, and can position and clamp the plate so that the ultrasonic detector can detect the plate weld. There will be welding ash at the weld during welding, and the welding ash is easy to affect the detection result during detection, thereby reducing the detection accuracy of the detection device, and then affecting the quality of the welded part. For this purpose, a non-destructive detection device and system for strip welds are provided. Summary of the invention

[0004] The purpose of the present invention is to propose a nondestructive testing device and system for strip welds in order to solve the problem that the current testing device needs to manually clean the welding ash before testing, which reduces the testing efficiency of the testing device.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical scheme: a nondestructive testing device for strip welds, comprising a base, a cavity is arranged inside the base, a limit assembly and an adjustment assembly are arranged on the upper surface of the base, a blowing assembly is arranged on the upper surface of the adjustment assembly, and a knocking assembly is arranged on the inner wall of the cavity of the base; The blowing assembly includes a piston cylinder and a mounting plate, a piston plate is slidably mounted on the inner wall of the piston cylinder, a connecting rod is fixedly mounted on the side wall of the piston plate, one end of the connecting rod extends to the outside of the piston cylinder, and a movable rod is rotatably mounted on one end of the connecting rod via a rotating shaft.

[0006] As a further description of the above technical solution: A connecting hose is connected and installed on the side wall of the piston cylinder, an air outlet pipe is connected and installed at one end of the connecting hose, positioning plates are fixedly installed at both ends of the air outlet pipe, and an air outlet hole is arranged on the lower surface of the air outlet pipe.

[0007] As a further description of the above technical solution: A rotating rod is rotatably mounted on the inner wall of the mounting plate, a rotating disk is fixedly mounted on one end of the rotating rod, the upper surface of the rotating disk is rotatably connected to the lower surface of the movable rod via a rotating shaft, and a transmission gear is fixedly mounted on the other end of the rotating rod.

[0008] As a further description of the above technical solution: The adjustment assembly includes a fixed seat, a fixed rack is fixedly installed on the outer surface of the fixed seat, the fixed rack is meshed with the transmission gear, the lower surface of the fixed seat is fixedly connected to the upper surface of the base, the upper surface of the fixed seat is provided with a travel groove, a protective cover is fixedly installed on the side wall of the fixed seat, a driving motor is fixedly installed on the inner wall of the protective cover, and a threaded column is fixedly installed on the output end of the driving motor.

[0009] As a further description of the above technical solution: One end of the threaded column extends to the interior of the travel groove and is rotatably connected to the inner wall of the travel groove. A moving block is threadedly installed on the outer surface of the threaded column. The outer surface of the moving block is slidably connected to the inner wall of the travel groove. A fixed cylinder is fixedly installed on the upper surface of the moving block. The upper surface of the fixed cylinder is fixedly connected to the lower surface of the piston cylinder. The side walls of the mounting plate and the positioning plate are both fixedly connected to the outer surface of the fixed cylinder.

[0010] As a further description of the above technical solution: A mounting cover is fixedly installed on the side wall of the fixed cylinder, a control motor is fixedly installed on the inner wall of the mounting cover, a threaded rod is fixedly installed on the output end of the control motor, one end of the threaded rod extends to the interior of the fixed cylinder, a slider is threadedly installed on the outer surface of the threaded rod, one end of the slider extends to the outside of the lower surface of the fixed cylinder and a detection head is fixedly installed.

[0011] As a further description of the above technical solution: The knocking assembly includes a support plate, which is located in the cavity of the base. A support spring is fixedly installed on the lower surface of the support plate, one end of the support spring is fixedly connected to the bottom inner wall of the cavity of the base, and a fixing plate is fixedly installed on one end of the support plate.

[0012] As a further description of the above technical solution: A knocking rod is fixedly installed on the upper surface of the fixing plate, and one end of the knocking rod extends to the outside of the upper surface of the base; a support rod is fixedly installed on the upper surface of the support plate, and one end of the support rod extends to the outside of the upper surface of the base; a positioning plate is fixedly installed on one end of the support rod, and a bump is fixedly installed on the upper surface of the positioning plate; a push rod is fixedly installed on the lower surface of the fixing tube, and one end of the push rod is in contact with the upper surface of the positioning plate.

[0013] As a further description of the above technical solution: The limit assembly includes two fixed columns, the lower surfaces of the fixed columns are fixedly connected to the upper surface of the base, a blocking rod is fixedly installed at one end of the fixed column, a sliding groove is provided at the other end of the fixed column, a limit spring is fixedly installed on the inner side wall of the sliding groove, a limit rod is fixedly installed at one end of the limit spring, one end of the limit rod extends to the outside of the sliding groove, and a fixed rod is fixedly installed at one end of the limit rod.

[0014] A nondestructive testing system for strip welds comprises a visual sensing module, wherein the visual sensing module is connected to a control module, the control module is connected to a drive module, the drive module is connected to a detection module, the detection module is connected to a data transmission module, and the data transmission module is connected to a data comparison module.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, by providing a blowing assembly, when the fixed cylinder moves, it will also drive the mounting plate to move synchronously. At this time, the mounting plate drives the transmission gear to move on the fixed rack through the rotating rod. At this time, the transmission gear will drive the rotating rod to rotate, and then drive the rotating disk to rotate. With the rotation of the rotating disk, the movable rod will drive the connecting rod to move back and forth, and the connecting rod drives the piston plate to move back and forth in the piston cylinder, and the gas in the piston cylinder is transported to the air outlet pipe through the connecting hose. When the fixed cylinder moves, the air outlet pipe is driven to move through the positioning plate, and then blown to the outer surface of the welded part through the air outlet hole, so as to clean the debris knocked off the welded part, thereby realizing the automatic cleaning of welding ash by the detection device before detection, avoiding the influence of welding ash on the detection result, further ensuring the detection accuracy of the detection device for the weld, and also avoiding the secondary detection of the detection device, improving the detection efficiency of the detection device, and ensuring the detection stability of the detection device.

[0016] 2. In the present invention, a knocking assembly is provided, and when the fixed cylinder moves, it will drive the push rod to move on the upper surface of the positioning plate. Under the action of the protrusion, the positioning plate drives the support plate to move in the cavity of the base through the support rod. Under the action of the support spring, the support plate drives the fixed plate to move up and down. At this time, the knocking rod will knock on the welded part, and the detection head will knock on the welded part when it moves, so as to shake off the welding ash at the weld, reduce the difficulty of cleaning the welding ash at the weld, and further improve the working efficiency of the detection device.

[0017] 3. In the present invention, by providing an adjustment component, the driving motor in the protective cover drives the threaded column to rotate, and the moving block moves in the stroke groove under the action of the thread, and the moving block drives the fixed cylinder to move to the weld. The control motor in the mounting cover drives the threaded rod to rotate, and the slider drives the detection head from the starting end of the weld to the end end under the action of the thread, thereby performing laser scanning on the weld, realizing multi-angle adjustment of the detection device, and then realizing the detection of welds at different positions, which not only ensures the detection accuracy of the detection device, but also improves the detection range. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a three-dimensional structural schematic diagram of a device for nondestructive testing of strip welds.

[0019] Figure 2 The present invention is a schematic diagram of the exploded structure of a limit assembly used in a strip weld nondestructive testing device.

[0020] Figure 3 The present invention is a schematic diagram of a partial three-dimensional structure of an adjustment component used in a strip weld nondestructive testing device.

[0021] Figure 4 The figure is a schematic diagram of the exploded structure of a fixing tube used in a strip weld nondestructive testing device.

[0022] Figure 5 The present invention is a schematic diagram of the exploded structure of an air blowing assembly used in a strip weld nondestructive testing device.

[0023] Figure 6 The present invention is a schematic diagram of the three-dimensional structure of a striking component used in a strip weld nondestructive testing device.

[0024] Figure 7 A system schematic diagram of a nondestructive testing device for strip welds.

[0025] Legend: 1. Base; 2. Limiting assembly; 21. Fixed column; 22. Stop rod; 23. Slide; 24. Limiting spring; 25. Limiting rod; 26. Fixed rod; 3. Adjusting assembly; 31. Fixed seat; 32. Travel groove; 33. Protective cover; 34. Threaded column; 35. Moving block; 36. Fixed cylinder; 37. Mounting cover; 38. Threaded rod; 39. Sliding block; 310. Detection head; 4. Blowing assembly; 41. Piston cylinder; 42. Piston plate; 43. Connecting rod; 44. Movable rod; 45. Install Mounting plate; 46, rotating rod; 47, rotating disk; 48, transmission gear; 49, connecting hose; 410, exhaust pipe; 411, positioning plate; 5, knocking assembly; 51, support plate; 52, fixing plate; 53, knocking rod; 54, supporting spring; 55, supporting rod; 56, positioning plate; 57, bump; 6, fixed rack; 7, push rod; 8, visual sensor module; 9, control module; 10, driving module; 11, detection module; 12, data transmission module; 13, data comparison module. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-Figure 7 The present invention provides a technical solution: a nondestructive testing device for strip welds, comprising a base 1, a cavity is arranged inside the base 1, a limit component 2 and an adjustment component 3 are arranged on the upper surface of the base 1, a blowing component 4 is arranged on the upper surface of the adjustment component 3, and a knocking component 5 is arranged on the inner wall of the cavity of the base 1; The blowing assembly 4 includes a piston cylinder 41 and a mounting plate 45, a piston plate 42 is slidably mounted on the inner wall of the piston cylinder 41, a connecting rod 43 is fixedly mounted on the side wall of the piston plate 42, one end of the connecting rod 43 extends to the outside of the piston cylinder 41, and a movable rod 44 is rotatably mounted on one end of the connecting rod 43 through a rotating shaft, a connecting hose 49 is connected and mounted on the side wall of the piston cylinder 41, and an air outlet pipe 410 is connected and mounted on one end of the connecting hose 49, positioning plates 411 are fixedly mounted on both ends of the air outlet pipe 410, and an air outlet hole is provided on the lower surface of the air outlet pipe 410, a rotating rod 46 is rotatably mounted on the inner wall of the mounting plate 45, a rotating disk 47 is fixedly mounted on one end of the rotating rod 46, the upper surface of the rotating disk 47 is rotatably connected to the lower surface of the movable rod 44 through a rotating shaft, and a transmission gear 48 is fixedly mounted on the other end of the rotating rod 46.

[0028] The specific implementation is as follows: when the fixed cylinder 36 moves, it will also drive the mounting plate 45 to move synchronously. At this time, the mounting plate 45 drives the transmission gear 48 to move on the fixed rack 6 through the rotating rod 46. At this time, the transmission gear 48 will drive the rotating rod 46 to rotate, and then drive the rotating disk 47 to rotate. As the rotating disk 47 rotates, the movable rod 44 will drive the connecting rod 43 to move back and forth, and the connecting rod 43 drives the piston plate 42 to move back and forth in the piston cylinder 41, and the gas in the piston cylinder 41 is transported to the outlet pipe 410 through the connecting hose 49. When the fixed cylinder 36 moves, the outlet pipe 410 is driven to move through the positioning plate 411, and then blown to the outer surface of the weldment through the outlet hole to clean the debris knocked off the weldment.

[0029] The adjustment assembly 3 includes a fixed seat 31, a fixed rack 6 is fixedly installed on the outer surface of the fixed seat 31, and the fixed rack 6 is meshed with the transmission gear 48. The lower surface of the fixed seat 31 is fixedly connected to the upper surface of the base 1, and the upper surface of the fixed seat 31 is provided with a travel groove 32. A protective cover 33 is fixedly installed on the side wall of the fixed seat 31, and a driving motor is fixedly installed on the inner wall of the protective cover 33. A threaded column 34 is fixedly installed on the output end of the driving motor, and one end of the threaded column 34 extends to the inside of the travel groove 32 and is rotatably connected to the inner side wall of the travel groove 32. A moving block 35 is threadedly installed on the outer surface of the threaded column 34, and the outer surface of the moving block 35 is threaded with the travel groove 32. The inner wall of the process groove 32 is slidably connected, a fixed cylinder 36 is fixedly installed on the upper surface of the moving block 35, and the upper surface of the fixed cylinder 36 is fixedly connected to the lower surface of the piston cylinder 41, and the side walls of the mounting plate 45 and the positioning plate 411 are fixedly connected to the outer surface of the fixed cylinder 36, and a mounting cover 37 is fixedly installed on the side wall of the fixed cylinder 36, and a control motor is fixedly installed on the inner wall of the mounting cover 37, and a threaded rod 38 is fixedly installed on the output end of the control motor, one end of the threaded rod 38 extends to the inside of the fixed cylinder 36, and a slider 39 is threadedly installed on the outer surface of the threaded rod 38, and one end of the slider 39 extends to the outside of the lower surface of the fixed cylinder 36 and is fixedly installed with a detection head 310.

[0030] The specific implementation example is as follows: the driving motor in the protective cover 33 drives the threaded column 34 to rotate, and the moving block 35 moves in the travel groove 32 under the action of the thread, and the moving block 35 drives the fixed cylinder 36 to move to the weld. The control motor in the mounting cover 37 drives the threaded rod 38 to rotate, and the slider 39 drives the detection head 310 to move from the starting end of the weld to the end end under the action of the thread, thereby performing laser scanning on the weld.

[0031] The knocking assembly 5 includes a support plate 51, which is located in the cavity of the base 1. A support spring 54 is fixedly installed on the lower surface of the support plate 51, and one end of the support spring 54 is fixedly connected to the bottom inner wall of the cavity of the base 1. A fixing plate 52 is fixedly installed on one end of the support plate 51, and a knocking rod 53 is fixedly installed on the upper surface of the fixing plate 52, and one end of the knocking rod 53 extends to the outside of the upper surface of the base 1. A support rod 55 is fixedly installed on the upper surface of the support plate 51, and one end of the support rod 55 extends to the outside of the upper surface of the base 1. A positioning plate 56 is fixedly installed on one end of the support rod 55, and a protrusion 57 is fixedly installed on the upper surface of the positioning plate 56. A push rod 7 is fixedly installed on the lower surface of the fixed tube 36, and one end of the push rod 7 is in contact with the upper surface of the positioning plate 56.

[0032] The specific implementation example is as follows: when the fixed tube 36 moves, it will drive the push rod 7 to move on the upper surface of the positioning plate 56. Under the action of the protrusion 57, the positioning plate 56 drives the support plate 51 to move in the cavity of the base 1 through the support rod 55. Under the action of the support spring 54, the support plate 51 drives the fixed plate 52 to move up and down. At this time, the knocking rod 53 will knock on the welded part.

[0033] The limiting assembly 2 includes two fixed columns 21, the lower surfaces of the fixed columns 21 are fixedly connected to the upper surface of the base 1, a blocking rod 22 is fixedly installed at one end of the fixed column 21, and a slide groove 23 is provided at the other end of the fixed column 21, a limiting spring 24 is fixedly installed on the inner side wall of the slide groove 23, a limiting rod 25 is fixedly installed at one end of the limiting spring 24, one end of the limiting rod 25 extends to the outside of the slide groove 23, and a fixing rod 26 is fixedly installed at one end of the limiting rod 25.

[0034] The specific implementation method is as follows: the fixing rod 26 is pulled toward one side of the fixing column 21, at which time the limiting rod 25 moves in the slide groove 23, and the limiting spring 24 is in a stretched state. Then the weldment is placed above the fixing column 21, and the fixing rod 26 is driven to move by the limiting rod 25 under the action of the limiting spring 24, so that the weldment is fixed under the action of the blocking rod 22.

[0035] A nondestructive testing system for strip welds includes a visual sensing module 8, wherein the visual sensing module 8 is connected to a control module 9, the control module 9 is connected to a drive module 10, the drive module 10 is connected to a detection module 11, the detection module 11 is connected to a data transmission module 12, and the data transmission module 12 is connected to a data comparison module 13.

[0036] The specific implementation method is as follows: the position of the weld is determined by a data sensor, and then a signal is transmitted to a controller. At this time, the controller controls the power source to work, and the power source drives the detection head 310 to move, and the weld is laser scanned. The scanned data is transmitted to a comparison device through a data transmission module 12, and then the detection data is summarized, and the summarized data is compared with the data in the database through a data comparison module 13.

[0037] Working principle: Pull the fixing rod 26 to one side of the fixing column 21, at this time, the limit rod 25 moves in the slide groove 23, and the limit spring 24 is in a stretched state, and then the weldment is placed above the fixing column 21. Under the action of the limit spring 24, the fixing rod 26 is driven to move by the limit rod 25, so that the weldment is fixed under the action of the stop rod 22. The driving motor in the protective cover 33 drives the threaded column 34 to rotate, and the moving block 35 moves in the stroke groove 32 under the action of the thread, and the moving block 35 drives the fixing cylinder 36 to move to the weld, and the cover is installed. The control motor in 37 drives the threaded rod 38 to rotate. Under the action of the thread, the slider 39 drives the detection head 310 to move from the starting end of the weld to the end point, so as to perform laser scanning on the weld. When the fixed cylinder 36 moves, it drives the push rod 7 to move on the upper surface of the positioning plate 56. Under the action of the protrusion 57, the positioning plate 56 drives the support plate 51 to move in the cavity of the base 1 through the support rod 55. Under the action of the support spring 54, the support plate 51 drives the fixed plate 52 to move up and down. At this time, the knocking rod 53 will knock on the weld. When the fixed cylinder 36 moves The mounting plate 45 will also be driven to move synchronously. At this time, the mounting plate 45 drives the transmission gear 48 to move on the fixed rack 6 through the rotating rod 46. At this time, the transmission gear 48 will drive the rotating rod 46 to rotate, thereby driving the rotating disk 47 to rotate. With the rotation of the rotating disk 47, the movable rod 44 will drive the connecting rod 43 to move back and forth. The connecting rod 43 drives the piston plate 42 to move back and forth in the piston cylinder 41, and the gas in the piston cylinder 41 is transported to the outlet pipe 410 through the connecting hose 49. When the fixed cylinder 36 moves, it is moved through the positioning plate 411 The air outlet pipe 410 is driven to move, and then the air is blown toward the outer surface of the weldment through the air outlet to clean the debris knocked off the weldment. The position of the weld is determined by the data sensor, and then the signal is transmitted to the controller. At this time, the controller controls the power source to work, and the power source drives the detection head 310 to move, and the weld is laser scanned. The scanned data is transmitted to the comparison device through the data transmission module 12, and then the detection data is summarized, and the summarized data is compared with the data in the database through the data comparison module 13.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for nondestructive testing of strip welds, comprising a base (1), characterized in that: A cavity is provided inside the base (1); a limit assembly (2) and an adjustment assembly (3) are provided on the upper surface of the base (1); a blowing assembly (4) is provided on the upper surface of the adjustment assembly (3); and a knocking assembly (5) is provided on the inner wall of the cavity of the base (1); The blowing assembly (4) comprises a piston cylinder (41) and a mounting plate (45), a piston plate (42) being slidably mounted on the inner wall of the piston cylinder (41), a connecting rod (43) being fixedly mounted on the side wall of the piston plate (42), one end of the connecting rod (43) extending to the outside of the piston cylinder (41), and a movable rod (44) being rotatably mounted on one end of the connecting rod (43) via a rotating shaft.

2. The nondestructive testing device for strip welds according to claim 1, characterized in that: A connecting hose (49) is installed in communication with the side wall of the piston cylinder (41), an air outlet pipe (410) is installed in communication with one end of the connecting hose (49), positioning plates (411) are fixedly installed at both ends of the air outlet pipe (410), and an air outlet hole is provided on the lower surface of the air outlet pipe (410).

3. The nondestructive testing device for strip welds according to claim 2, characterized in that: A rotating rod (46) is rotatably mounted on the inner wall of the mounting plate (45); a rotating disk (47) is fixedly mounted on one end of the rotating rod (46); an upper surface of the rotating disk (47) is rotatably connected to a lower surface of the movable rod (44) via a rotating shaft; and a transmission gear (48) is fixedly mounted on the other end of the rotating rod (46).

4. The nondestructive testing device for strip welds according to claim 3, characterized in that: The adjustment assembly (3) comprises a fixed seat (31), a fixed rack (6) is fixedly mounted on the outer surface of the fixed seat (31), the fixed rack (6) is meshingly connected with the transmission gear (48), the lower surface of the fixed seat (31) is fixedly connected with the upper surface of the base (1), the upper surface of the fixed seat (31) is provided with a travel groove (32), a protective cover (33) is fixedly mounted on the side wall of the fixed seat (31), a driving motor is fixedly mounted on the inner wall of the protective cover (33), and a threaded column (34) is fixedly mounted on the output end of the driving motor.

5. The nondestructive testing device for strip welds according to claim 4, characterized in that: One end of the threaded column (34) extends into the interior of the travel groove (32) and is rotatably connected to the inner wall of the travel groove (32); a moving block (35) is threadedly mounted on the outer surface of the threaded column (34); the outer surface of the moving block (35) is slidably connected to the inner wall of the travel groove (32); a fixed cylinder (36) is fixedly mounted on the upper surface of the moving block (35); the upper surface of the fixed cylinder (36) is fixedly connected to the lower surface of the piston cylinder (41); and the side walls of the mounting plate (45) and the positioning plate (411) are both fixedly connected to the outer surface of the fixed cylinder (36).

6. The nondestructive testing device for strip welds according to claim 5, characterized in that: A mounting cover (37) is fixedly mounted on the side wall of the fixed cylinder (36), a control motor is fixedly mounted on the inner wall of the mounting cover (37), a threaded rod (38) is fixedly mounted on the output end of the control motor, one end of the threaded rod (38) extends to the inside of the fixed cylinder (36), a slider (39) is threadedly mounted on the outer surface of the threaded rod (38), one end of the slider (39) extends to the outside of the lower surface of the fixed cylinder (36) and is fixedly mounted with a detection head (310).

7. The nondestructive testing device for strip welds according to claim 6, characterized in that: The striking assembly (5) comprises a support plate (51), the support plate (51) being located in a cavity of the base (1), a support spring (54) being fixedly mounted on the lower surface of the support plate (51), one end of the support spring (54) being fixedly connected to the inner wall of the bottom surface of the cavity of the base (1), and a fixing plate (52) being fixedly mounted on one end of the support plate (51).

8. The nondestructive testing device for strip welds according to claim 7, characterized in that: A knocking rod (53) is fixedly mounted on the upper surface of the fixing plate (52), one end of the knocking rod (53) extending outside the upper surface of the base (1); a support rod (55) is fixedly mounted on the upper surface of the supporting plate (51), one end of the support rod (55) extending outside the upper surface of the base (1); a positioning plate (56) is fixedly mounted on one end of the support rod (55), a protrusion (57) is fixedly mounted on the upper surface of the positioning plate (56); a push rod (7) is fixedly mounted on the lower surface of the fixing tube (36), one end of the push rod (7) being in contact with the upper surface of the positioning plate (56).

9. The nondestructive testing device for strip welds according to claim 8, characterized in that: The limit assembly (2) comprises two fixed columns (21), the lower surface of the fixed column (21) is fixedly connected to the upper surface of the base (1), a stop rod (22) is fixedly mounted on one end of the fixed column (21), a slide groove (23) is provided on the other end of the fixed column (21), a limit spring (24) is fixedly mounted on the inner side wall of the slide groove (23), a limit rod (25) is fixedly mounted on one end of the limit spring (24), one end of the limit rod (25) extends to the outside of the slide groove (23), and a fixed rod (26) is fixedly mounted on one end of the limit rod (25).

10. A non-destructive testing system for strip welds, comprising a visual sensor module (8), characterized in that: The visual sensing module (8) is connected to the control module (9), the control module (9) is connected to the driving module (10), the driving module (10) is connected to the detection module (11), the detection module (11) is connected to the data transmission module (12), and the data transmission module (12) is connected to the data comparison module (13).

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