A nondestructive testing device for parts

Abstract

The application discloses a kind of zero parts nondestructive testing equipment, it is related to safety equipment part detection technical field, including mobile car, mobile car top fixedly connected with support frame, support frame rotatably connected with rotating frame, rotating frame slidingly connected with three fixed parts, fixed part is provided with ball, fixed part is fixedly connected with flaw detector, further including connecting block, connecting block slidingly connected with scraping frame is removed.The application can automatically clean dust and impurities on the surface of pipe during pipe detection by rotating scraping frame, avoid dust and impurities interference detection, so as to improve the accuracy during detection.

Description

Technical Field

[0001] This invention relates to the field of safety facility component inspection technology, and in particular to a non-destructive testing device for components. Background Technology

[0002] As a common component, the quality of metal pipes is particularly important. When people need to conduct on-site inspections of the quality of metal pipes, it is difficult to observe whether there is damage inside the metal pipes with the naked eye. Therefore, people usually use non-destructive testing equipment to perform radiographic testing on the metal pipes.

[0003] Patent publication number CN219799321U discloses a pipeline flaw detection device, including an outer ring. An inner ring is fitted onto the inner wall of the outer ring. A segmented bearing is fixed to one side of the outer wall of the outer ring, and a rod seat is fixed to the other side of the outer wall of the outer ring. An extension rod is connected to one side of the rod seat and passes through the inner wall of the outer ring. A probe is connected to the outer wall of the outer ring. When using this patent to detect pipeline flaws, the device is first manually fitted onto the outer wall of the pipeline to be tested, and then the probe is used to detect the inside of the pipeline. During the test, the detection range can be expanded by rotating and moving the device. However, since the pipeline is exposed to the external environment for a long time, dust or impurities may adhere to the pipeline surface. This patent makes it difficult to clean the dust or impurities on the pipeline surface, so the detection effect may be interfered with, affecting the accuracy of the detection data.

[0004] To address the aforementioned shortcomings, a non-destructive testing device for components was designed that can automatically clean pipelines to improve the accuracy of inspection data. Summary of the Invention

[0005] This invention provides a non-destructive testing device for components that can automatically clean pipelines and improve the accuracy of test data, thereby overcoming the shortcomings of existing pipeline testing devices that are difficult to automatically clean pipelines when performing pipeline testing.

[0006] A non-destructive testing device for components includes a mobile cart, a support frame fixedly connected to the top of the mobile cart, a rotating frame rotatably connected to the support frame, three fixed members slidably connected to the rotating frame, each fixed member being equipped with ball bearings, and three adjusting screws threadedly connected to the rotating frame. The three adjusting screws are respectively positioned corresponding to the three fixed members, and each adjusting screw is rotatably connected to an adjacent fixed member. A flaw detector is fixedly connected to each of the three fixed members. The device is characterized by further including connecting blocks; two connecting blocks are fixedly mounted on the front side of the rotating frame, and each connecting block is slidably connected to a scraping frame. A compression spring is provided between each of the two scraping frames and an adjacent connecting block. The support frame is equipped with a drive assembly for rotating the rotating frame, and the rotating frame is equipped with a marking assembly for marking the location of pipe damage. The rotating frame is also equipped with a marking assembly for marking the pipe damage. The cleaning assembly includes a drive component comprising a servo motor fixedly mounted on a support frame, a pinion gear at the motor's output end, a large gear fixedly connected to the rotating frame, and the large gear meshing with the pinion gear. The cleaning assembly also includes a fixing ring fixedly connected to the rotating frame, with a rubber scraper fixedly mounted on the fixing ring. Furthermore, it includes a soot blowing assembly comprising an air tank fixedly connected to the rotating frame, a connecting pipe with three air outlet pipes corresponding to the positions of three flaw detectors, a piston rod slidably connected to the air tank, and a return spring between the piston rod and the air tank. Finally, it includes a trigger assembly comprising a semi-circular body fixedly connected to the piston rod, and a wedge block fixedly connected to the support frame, with the wedge block corresponding to the position of the semi-circular body.

[0007] Preferably, the marking assembly includes fixed rods, and the rotating frame is fixedly provided with three fixed rods. Each of the three fixed rods is fixedly connected to an electric push rod, and each of the three electric push rods has a marking pen fixedly installed on its telescopic rod. The positions of the three marking pens are respectively set to correspond to the positions of the three flaw detectors.

[0008] Preferably, it also includes a shielding component, which includes a support member fixed to the top of the support frame, a shielding net fixedly installed at the bottom of the support member, a connecting frame fixedly connected to the bottom of the shielding net, the connecting frame and the support member being slidably connected, a pressure spring being provided between the connecting frame and the support member, and a pin being slidably provided on the right side of the connecting frame, the pin engaging with the support member.

[0009] Preferably, it also includes a connecting spring, which is disposed between the pin and the connecting frame, with one end of the connecting spring fixedly connected to the pin and the other end of the connecting spring fixedly connected to the connecting frame.

[0010] Preferably, it also includes a spray assembly, which includes a water storage tank, the water storage tank is fixedly installed on the top of the support member, a water pump is fixedly installed at the bottom of the water storage tank, a water passage component is fixedly installed at the bottom of the water pump, the water inlet of the water pump is connected to the water storage tank, the water outlet of the water pump is connected to the water passage component, and the spray component is rotatably connected to the water passage component and the water passage component is connected to the spray component.

[0011] Preferably, it also includes a tapping assembly, which includes a connector fixed to the top of the support member. Tapping members are slidably connected to both sides of the connector. Each tapping member is fixed to the connector with a return spring. Each tapping member is fixed to a trapezoidal block. U-shaped extrusion blocks are fixed to both sides of the connecting frame. The positions of the two U-shaped extrusion blocks correspond to the positions of the two trapezoidal blocks. Beneficial effects

[0012] This invention, by rotating the scraper, can automatically clean dust and impurities from the surface of pipes during inspection, preventing dust and impurities from interfering with the inspection and thus improving the accuracy of the inspection.

[0013] This invention utilizes a downward-moving, sunshading net to provide shade for the flaw detector in hot outdoor weather, preventing it from being affected during normal use and thus improving the accuracy of flaw detection.

[0014] This invention uses a spray nozzle to spray clean water onto the pipe, which assists the scraper in cleaning the pipe and thus improves the cleaning effect.

[0015] This invention blows air through an air outlet to the probe of the flaw detector, which can automatically blow away the dust attached to the probe during the inspection, further preventing the flaw detector's inspection effect from being affected. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of the mobile vehicle, support frame, and rotating frame components of the present invention.

[0018] Figure 3 This is a three-dimensional structural diagram of the fixing component, adjusting screw, and flaw detector of the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of the support frame, pinion, and servo motor components of the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of the components such as the pinion, gear, and servo motor of the present invention.

[0021] Figure 6This is a three-dimensional structural diagram of the marking component of the present invention.

[0022] Figure 7 This is a three-dimensional structural diagram of the fixing ring, rubber scraper, and connecting block of the present invention.

[0023] Figure 8 This is a three-dimensional structural diagram of the connecting block, scraper, and compression spring of the present invention.

[0024] Figure 9 This is a three-dimensional structural diagram of the shielding component of the present invention.

[0025] Figure 10 This is a three-dimensional structural diagram of the support frame, support member, and pin of the present invention.

[0026] Figure 11 This is a three-dimensional structural diagram of the spray assembly of the present invention.

[0027] Figure 12 This is a three-dimensional structural diagram of the water pump, water supply component, and spray component of the present invention.

[0028] Figure 13 This is a three-dimensional structural diagram of the soot blowing component of the present invention.

[0029] Figure 14 This is a three-dimensional structural diagram of the gas storage tank, connecting pipe, and gas outlet pipe of the present invention.

[0030] Figure 15 This is a three-dimensional structural diagram of the connecting pipe and the air outlet pipe of the present invention.

[0031] Figure 16 This is a three-dimensional structural diagram of the tapping component of the present invention.

[0032] Figure 17 This is a three-dimensional structural diagram of the connector, return spring, and striking component of the present invention.

[0033] The components in the attached diagram are labeled as follows: 1. Moving vehicle; 11. Support frame; 12. Rotating frame; 13. Fixing component; 14. Adjusting screw; 15. Flaw detector; 16. Large gear; 17. Small gear; 18. Servo motor; 19. Marking pen; 110. Fixing rod; 111. Electric push rod; 2. Fixing ring; 21. Rubber scraper; 22. Connecting block; 23. Scraping frame; 24. Compression spring; 3. Connecting spring; 3 1. Connecting frame; 32. Support component; 33. Pressure spring; 34. Shielding net; 35. Pin; 4. Water tank; 41. Water pump; 42. Water supply component; 43. Sprayer component; 5. Wedge block; 51. Gas storage tank; 52. Semi-circular body; 53. Piston rod; 54. Return spring; 55. Connecting pipe; 56. Gas outlet pipe; 6. Connecting component; 61. Return spring; 62. Beating component; 63. U-shaped extrusion block; 64. Trapezoidal block. Detailed Implementation

[0034] The above-described solution will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of this application. The implementation conditions used in the embodiments may be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are generally those in routine experiments.

[0035] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 , Figure 7 and Figure 8 As shown, a non-destructive testing device for components includes a mobile cart 1. A support frame 11 is fixedly connected to the upper rear side of the mobile cart 1. A rotating frame 12 is rotatably connected to the front of the support frame 11. Three fixing parts 13 and three adjusting screws 14 are equidistantly arranged along the circumferential direction on the rotating frame 12. The three fixing parts 13 are all slidably connected to the rotating frame 12, and ball bearings are provided on the inner wall of each of the three fixing parts 13. The three adjusting screws 14 are respectively arranged corresponding to the positions of the three fixing parts 13, and are all threadedly connected to the rotating frame 12. Each adjusting screw 14 is rotated with the adjacent fixing part 13. The rotating frame 12 is connected in a dynamic manner. Each of the three fixing parts 13 has a flaw detector 15 fixed to its rear side. The flaw detector 15 has a probe at its rear. Each of the upper and lower parts of the front side of the rotating frame 12 has a connecting block 22 fixed to it. Each of the two connecting blocks 22 has a scraping frame 23 slidably connected to it. Each of the two scraping frames 23 has a compression spring 24 between it and the adjacent connecting block 22. The upper front part of the support frame 11 has a drive component for driving the rotating frame 12 to rotate. The rear side of the rotating frame 12 has a marking component for marking the location of pipe damage. The front side of the rotating frame 12 has a cleaning component for assisting the scraping frame 23 in cleaning the pipe.

[0036] like Figure 4 and Figure 5As shown, the drive assembly includes a servo motor 18, which is fixedly mounted on the upper front of the support frame 11. A pinion 17 is provided at the output end of the servo motor 18. A large gear 16 is fixedly connected to the rear of the rotating frame 12. The large gear 16 meshes with the pinion 17 and is located on the inner side of the front of the support frame 11.

[0037] like Figure 6 As shown, the marking assembly includes a marking pen 19, a fixing rod 110, and an electric push rod 111. Three fixing rods 110 are fixedly installed on the rear side of the rotating frame 12. An electric push rod 111 is fixedly connected to the rear of each of the three fixing rods 110. The telescopic rods of the three electric push rods 111 are all fixedly equipped with marking pens 19. The positions of the three marking pens 19 correspond to the positions of the three flaw detectors 15.

[0038] like Figure 7 As shown, the cleaning assembly includes a fixing ring 2 and a rubber scraper 21. The fixing ring 2 is fixedly connected to the front side of the rotating frame 12, and the rubber scraper 21 is fixedly installed on the inner wall of the fixing ring 2.

[0039] When pipeline flaw detection is required, the non-destructive testing equipment of this component can be used. The specific operation is as follows: First, move this equipment to the rear of the pipeline to be inspected. Then, manually pull the scraper 23 outward, which stretches the compression spring 24. Next, manually move this equipment forward so that the rear of the pipeline is inside the support frame 11 and positioned between the three fixing parts 13. During the movement, the pipeline can compress and expand the rubber scraper 21, allowing the rubber scraper 21 to wrap around the outside of the pipeline while deforming. Once the rear of the pipeline has moved in, the scraper can be released. 23. At this point, under the action of the compression spring 24, the scraper 23 will move inward and fit against the outer wall of the pipe. Then, manually rotate the adjusting screw 14, causing the adjusting screw 14 to drive the fixing part 13 to move inward, so that the ball on the fixing part 13 moves to fit against the outer wall of the pipe. The pipe is clamped and fixed by the three fixing parts 13. Then, the servo motor 18 is turned on, and the servo motor 18 drives the small gear 17 to rotate, which in turn drives the large gear 16, the rotating frame 12, the connecting block 22 and the scraper 23 to rotate, so that the scraper 23 scrapes the dust and impurities on the outer wall of the pipe. Scraping automatically cleans dust and impurities from the outer wall of the pipe during inspection. Simultaneously, the flaw detector 15 can be activated by turning on the servo motor 18 and manually propelling the device forward slowly. The rubber scraper 21 further cleans the dust and impurities from the outer wall of the pipe, improving the cleaning effect. When the probe of the flaw detector 15 moves to the cleaned position, it will use X-ray inspection to inspect the inside of the pipe. If the flaw detector 15 detects a defect inside the pipe, the operator can control the electric push rod 111 to open and utilize the extension of the electric push rod 111... The retracting rod causes the marking pen 19 to contact the pipeline, allowing the marking pen 19 to mark the location of defects. This makes it easier for operators to locate the defects after inspection. Furthermore, the rotation of the rotating frame 12 also drives the flaw detector 15 to rotate, enabling the flaw detector 15 to perform a comprehensive inspection of the pipeline, thus improving the accuracy of the flaw detector 15's inspection. After the pipeline inspection is completed, the flaw detector 15 and the servo motor 18 are turned off. In summary, a comprehensive flaw detection of the pipeline can be performed, and the pipeline's outer wall can be automatically cleaned during the inspection, thereby improving the accuracy of the inspection data.

[0040] like Figure 9 and Figure 10 As shown, the non-destructive testing equipment for components also includes a shielding assembly. The shielding assembly includes a support member 32, which is fixed to the upper rear end of the support frame 11. A folded shielding net 34 is installed on the lower side of the support member 32. A connecting frame 31 is fixed to the lower side of the shielding net 34. The connecting frame 31 is slidably connected to the support member 32. Two pressure springs 33 are fixed between the upper end of the connecting frame 31 and the upper side of the support member 32. A pin 35 is slidably provided on the right side of the connecting frame 31, and the pin 35 is engaged with the support member 32.

[0041] like Figure 9 and Figure 10 As shown, it also includes a connecting spring 3, which is fixed between the pin 35 and the connecting frame 31. One end of the connecting spring 3 is fixedly connected to the pin 35, and the other end of the connecting spring 3 is fixedly connected to the connecting frame 31.

[0042] When the flaw detector 15 is used outdoors in hot weather, to prevent damage due to high temperatures, a shading assembly can be used to provide sun protection for the flaw detector 15. The specific operation is as follows: Initially, the pressure spring 33 is in a stretched state. When it is necessary to provide sun protection for the flaw detector 15, manually pull the pin 35 away from the support member 32. As a result, the connecting spring 3 is stretched. At this time, under the action of the pressure spring 33, the connecting frame 31 will move downward, and then the shading net 34 will be pulled downward and unfolded. In this way, the flaw detector 15 can be shaded by the unfolded shading net 34. After the pin 35 has moved downward and away from the support member 32, the pin can be released. 35. At this time, under the action of the connecting spring 3, the pin 35 will move to the left to reset. If it is necessary to fold the shielding net 34, first manually pull the pin 35 to the right, and then manually move the connecting frame 31 upward. At this time, the shielding net 34 will be folded upward and the pressure spring 33 will be stretched. After the connecting frame 31 and the pin 35 move upward to reset, the pin 35 can be released and the pin 35 can be engaged with the support 32. This can limit the connection frame 31 after reset. In summary, the unfolded shielding net 34 can be used to protect and shade the flaw detector 15 outdoors. During the test, the unfolded shielding net 34 will be located on the upper side of the pipe and will not affect the test.

[0043] like Figure 11 and Figure 12 As shown, the non-destructive testing equipment for components also includes a spray assembly. The spray assembly includes a water tank 4, which is fixedly installed on the upper front of the support member 32. A water pump 41 is fixedly installed at the bottom of the water tank 4. The inlet end of the water pump 41 is connected to the water tank 4. A water passage component 42 is fixedly installed at the bottom of the water pump 41. The outlet end of the water pump 41 is connected to the water passage component 42. The water passage component 42 is rotatably connected to the spray component 43, and the water passage component 42 is connected to the spray component 43.

[0044] When the scraper 23 scrapes away dust and impurities from the pipe surface, some stubborn dust and impurities may be difficult to remove. To improve the cleaning effect, a spray assembly can be used in conjunction with the scraper 23 to clean the dust and impurities from the pipe surface. The specific operation is as follows: First, fill the water tank 4 with clean water. When the device is placed on the pipe, the pipe will be located inside the spray assembly 43. When the scraper 23 is used to clean the dust and impurities from the pipe surface, the water pump 41 can also be turned on. At this time, the water pump 41 will transport the clean water in the water tank 4 to the spray assembly 43 through the water passage 42, and then spray it out from the inside of the spray assembly 43 onto the middle pipe. This can work with the scraper 23 to clean the pipe surface. The outlet of the spray assembly 43 is set at an angle. Under the impact of the water, the spray assembly 43 will also rotate, which can expand the spray range of the spray assembly 43. If it is not necessary to flush the pipe, the water pump 41 can be turned off.

[0045] like Figure 13 , Figure 14 and Figure 15 As shown, the non-destructive testing equipment for components also includes a soot blowing assembly, which includes an air tank 51. The air tank 51 is fixedly installed on the rear side of the rotating frame 12. A connecting pipe 55 is connected to the front side of the air tank 51. Three air outlet pipes 56 are connected to the connecting pipe 55. The three air outlet pipes 56 are respectively set to correspond to the positions of three flaw detectors 15. A piston rod 53 is slidably connected to the air tank 51. A return spring 54 is fixedly connected between the piston rod 53 and the air tank 51. The return spring 54 is wound around the outside of the piston rod 53. One end of the return spring 54 is fixedly connected to the piston rod 53, and the other end of the return spring 54 is fixedly connected to the air tank 51.

[0046] like Figure 13 As shown, the non-destructive testing equipment for components also includes a triggering component, which includes a semi-circular body 52. ​​The semi-circular body 52 is fixed to the rear side of the piston rod 53. A wedge block 5 is fixed to the support frame 11. The wedge block 5 is positioned corresponding to the semi-circular body 52, and the wedge block 5 and the semi-circular body 52 are pressed together.

[0047] After the flaw detector 15 has been used for a period of time, a large amount of dust may accumulate on the probe due to its prolonged exposure to the air. To avoid affecting the detection effect of the flaw detector 15, a dust blowing assembly can be used to blow away the dust adhering to the probe. The specific operation is as follows: When the rotating frame 12 rotates, it also drives the air tank 51, the semi-circular body 52, and the piston rod 53 to rotate together. When the semi-circular body 52 rotates to contact the wedge block 5, the wedge block 5 will press the semi-circular body 52 and the piston rod 53 forward, thereby compressing the return spring 54. Subsequently, when the semi-circular body 52 rotates to contact the wedge block... When disengaged, the semicircular body 52 and piston rod 53 will move backward and reset under the action of the return spring 54. In this way, when the rotating frame 12 and the air tank 51 rotate, the piston rod 53 will move back and forth continuously. Air will be blown onto the probe of the flaw detector 15 through the air tank 51, the connecting pipe 55 and the air outlet pipe 56 to blow away the dust attached to the probe of the flaw detector 15. Then, when the rotating frame 12 stops rotating, the air tank 51, the semicircular body 52 and the piston rod 53 will also stop rotating. In summary, the dust attached to the probe of the flaw detector 15 can be automatically blown away, so as to avoid affecting the detection effect of the flaw detector 15 and further improve the detection accuracy.

[0048] like Figure 16 and Figure 17 As shown, the non-destructive testing equipment for components also includes a tapping assembly. The tapping assembly includes a connector 6, which is fixed to the top of the support 32. Tapping pieces 62 are slidably connected to both sides of the connector 6. Return springs 61 are fixed between each tapping piece 62 and the connector 6. Trapezoidal blocks 64 are fixed to each tapping piece 62. U-shaped extrusion blocks 63 are fixed to both sides of the connecting frame 31. The positions of the two U-shaped extrusion blocks 63 correspond to the positions of the two trapezoidal blocks 64.

[0049] When the shielding net 34 is unfolded and in use, it is prone to accumulating a large amount of dust due to prolonged exposure to the air. To facilitate use, the dust adhering to the shielding net 34 can be removed using a tapping component. The specific operation is as follows: When the connecting frame 31 moves downward to unfold the shielding net 34, the connecting frame 31 will also drive the U-shaped pressing block 63 to move downward. When the U-shaped pressing block 63 moves to contact the trapezoidal block 64, the U-shaped pressing block 63 can squeeze and push the tapping component 62 and the trapezoidal block 64 away from the shielding net 34. At this time, the return spring 61 is compressed. When the U-shaped pressing block 63 moves to disengage from the trapezoidal block 64, the return spring 61 resets and drives the tapping component 62 to tap the shielding net 34. This allows the tapping component 62 to automatically tap the shielding net 34 and remove the dust adhering to it. When the connecting frame 31 moves upward, the connecting frame 31 will also drive the U-shaped pressing block 63 to move upward and reset.

[0050] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A kind of zero parts nondestructive testing equipment, including mobile car (1), mobile car (1) top fixed connection has support frame (11), support frame (11) rotationally connected with rotating frame (12), rotating frame (12) slidingly connected with three fixed parts (13), fixed part (13) is provided with ball, rotating frame (12) is threadedly connected with three adjusting lead screws (14), three adjusting lead screws (14) are respectively set with the position corresponding to three fixed parts (13), each adjusting lead screw (14) is rotationally connected with adjacent fixed part (13), three fixed parts (13) are all fixed with flaw detector (15), it is characterized in that, Further include the connecting block (22), the front side of the rotating frame (12) is fixedly provided with two connecting blocks (22), two connecting blocks (22) are all slidably connected with the scraping frame (23), two scraping frames (23) are all provided with extrusion springs (24) between the adjacent connecting blocks (22), the support frame (11) is provided with a driving assembly for driving the rotating frame (12) to rotate, the rotating frame (12) is provided with a marking assembly for marking the position of the pipeline damage, the rotating frame (12) is provided with a cleaning assembly for cleaning the pipeline, the driving assembly comprises a servo motor (18), the servo motor (18) is fixedly installed on the support frame (11), the servo motor (18) is provided with a pinion (17) at the output end, the rotating frame (12) is fixedly connected with a large gear (16), the large gear (16) is engaged with the pinion (17), the cleaning assembly comprises a fixed ring (2), the fixed ring (2) is fixedly connected to the rotating frame (12), the fixed ring (2) is fixedly installed with a rubber scraper (21), further comprising a soot blowing assembly, the soot blowing assembly comprises a gas storage tank (51), the gas storage tank (51) is fixedly connected to the rotating frame (12), the gas storage tank (51) is connected with a connecting pipe (55), the connecting pipe (55) is connected with three gas outlets (56), the three gas outlets (56) are respectively arranged corresponding to the positions of the three flaw detectors (15), the gas storage tank (51) is slidably connected with a piston rod (53), a return spring (54) is arranged between the piston rod (53) and the gas storage tank (51), further comprising a trigger assembly, the trigger assembly comprises a semicircular body (52), the semicircular body (52) is fixedly connected to the piston rod (53), the support frame (11) is fixedly connected with a wedge-shaped block (5), the wedge-shaped block (5) is arranged corresponding to the position of the semicircular body (52), and the wedge-shaped block (5) is extrudedly matched with the semicircular body (52).

2. The apparatus according to claim 1, wherein The marking assembly comprises a fixed rod (110), the rotating frame (12) is fixedly provided with three fixed rods (110), the three fixed rods (110) are all fixedly connected with an electric push rod (111), the telescopic rods of the three electric push rods (111) are all fixedly installed with a marking pen (19), and the positions of the three marking pens (19) are respectively arranged corresponding to the positions of the three flaw detectors (15).

3. The apparatus according to claim 2, wherein Further comprising a shielding assembly, the shielding assembly comprises a support piece (32), the support piece (32) is fixedly connected to the top of the support frame (11), the support piece (32) is fixedly installed with a shielding net (34) at the bottom, the shielding net (34) is fixedly connected with a connecting frame (31) at the bottom, the connecting frame (31) is slidably connected with the support piece (32), a pressure spring (33) is arranged between the connecting frame (31) and the support piece (32), a latch (35) is slidably arranged on the right side of the connecting frame (31), and the latch (35) is matched with the support piece (32) in clamping.

4. The apparatus according to claim 3, wherein Further comprising a connecting spring (3), the connecting spring (3) is arranged between the latch (35) and the connecting frame (31), one end of the connecting spring (3) is fixedly connected with the latch (35), and the other end of the connecting spring (3) is fixedly connected with the connecting frame (31). Further comprising a connecting spring (3), the connecting spring (3) is arranged between the latch (35) and the connecting frame (31), one end of the connecting spring (3) is fixedly connected with the latch (35), and the other end of the connecting spring (3) is fixedly connected with the connecting frame (31).

5. The apparatus according to claim 4, wherein The spraying assembly comprises a water storage tank (4) fixedly installed on the top of the support (32), a water pump (41) fixedly arranged at the bottom of the water storage tank (4), a water passing element (42) fixedly arranged at the bottom of the water pump (41), a water inlet end of the water pump (41) communicated with the water storage tank (4), a water outlet end of the water pump (41) communicated with the water passing element (42), and a spraying element (43) rotatably connected with the water passing element (42) and communicated with the water passing element (42).

6. The apparatus according to claim 5, wherein The beating assembly comprises a connecting element (6) fixedly connected to the top of the support (32), beating elements (62) slidably connected to the left and right sides of the connecting element (6), return springs (61) fixedly connected between each beating element (62) and the connecting element (6), trapezoidal blocks (64) fixedly connected to each beating element (62), U-shaped extrusion blocks (63) fixedly connected to the left and right sides of the connecting frame (31), and the two U-shaped extrusion blocks (63) correspondingly arranged at positions of the two trapezoidal blocks (64).

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