Magnetic stress detection device and detection method

Abstract

The invention relates to the technical field of ferromagnetic material detection equipment, in particular to a magnetic stress detection device and method, and the device comprises an operation table, a to-be-detected pipe located above the operation table, a knocking mechanism, a cleaning mechanism and a knocking block; the beating mechanism is arranged at the top of the operating table; the cleaning mechanism is arranged on the side of the beating mechanism; and the knocking block is arranged on the knocking mechanism. Through the arrangement of the beating mechanism and the cleaning mechanism, a second motor drives a beating block to annularly beat the outer side of a to-be-detected pipe, so that rust on the outer side of the to-be-detected pipe is removed, and after removal is completed, a third motor drives a sponge eraser to rotate, so that rust chippings removed from the to-be-detected pipe are erased; therefore, the detection device can more accurately capture the change of the magnetic field, so that the stress state and potential defects of the pipeline can be more accurately evaluated, and meanwhile, the situation that the service life and the performance of the magnetic stress detection device are affected due to the fact that a probe or a sensor of the magnetic stress detection device is abraded by rust and chippings can be avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of ferromagnetic material detection equipment, and particularly to a magnetic stress detection device and a detection method. Background Art

[0002] A magnetic stress detection device is a device used to measure the stress distribution in materials or structures and works based on the magnetic stress effect. This device has important applications in industrial inspection, structural health monitoring, and materials science research.

[0003] Chinese Patent with Publication No. CN220625597U discloses a ferromagnetic material stress detection device, including a detector body. A protective box is arranged outside the detector body. There is a gap between the inner wall of the protective box and the outer peripheral surface of the detector body. A plurality of buffer devices are arranged between the inner wall of the protective box and the detector body. The buffer device includes a buffer member arranged on the protective box for buffering the collision of the detector body and an elastic buffer plate arranged on the buffer member. The elastic buffer plate abuts against the side surface of the detector body. This ferromagnetic material stress detection device has the effect of improving the convenience of using the stress detector.

[0004] However, the above-disclosed solution has the following deficiencies: The existing magnetic stress detection device cannot remove rust and adhered debris on the outer side of the pipeline to be detected before detection, thus affecting the detection result of the magnetic stress of the pipeline to be detected by the detector. Summary of the Invention

[0005] The object of the present invention is to address the problem that the outer side of the pipeline cannot be cleaned before detecting the pipeline in the background art, and to propose a magnetic stress detection device and a detection method.

[0006] The technical solution of the present invention: A magnetic stress detection device includes an operation table and a pipeline to be detected located above the operation table; it also includes;

[0007] A knocking mechanism, which is arranged on the top of the operation table and is used to comprehensively knock rust and other debris on the surface of the pipeline to be detected;

[0008] A cleaning mechanism, which is arranged on the side of the knocking mechanism and is used to wipe off the knocked rust from the pipeline to be detected;

[0009] And a knocking block, which is arranged on the knocking mechanism. A plurality of knocking blocks are annularly arranged around the knocking mechanism. When the knocking mechanism works, it drives the knocking blocks to knock on the pipeline to be detected, thereby knocking off rust and other debris on the pipeline to be detected.

[0010] Preferably, the knocking mechanism includes a power component and a rust-removing component;

[0011] The power assembly is arranged on the top of the operating table and is used to provide power for the rust removal assembly;

[0012] The rust removal assembly is arranged on the side of the power assembly and is used to knock on the pipe to be tested to remove the rust on it.

[0013] Preferably, the power assembly includes a second motor, a second connecting frame, a second rotating shaft and a power component;

[0014] The second connecting frame is arranged on the side of the operating table, the second motor is arranged inside the second connecting frame, the second rotating shaft is arranged at the output end of the second motor, and a power component is arranged at the end of the second rotating shaft away from the second motor.

[0015] Preferably, the rust removal assembly includes a support foot, a fixing ring, a sliding rod and a second spring;

[0016] The support foot is arranged on the top of the operating table, the fixing ring is arranged on the top of the support foot, there are two support feet symmetrically arranged with respect to the fixing ring, the sliding rod is slidably arranged on the fixing ring, there are multiple sliding rods annularly arranged on the fixing ring, the second spring is arranged on the outside of the sliding rod, and the end of the second spring close to the fixing ring is connected to the outside of the fixing ring. The end of the sliding rod is connected to the side of the knocking block, a connecting piece is arranged at the end of the sliding rod away from the knocking block, a rotating rod is rotatably arranged on the side of the connecting piece, a sliding block is rotatably arranged at the end of the rotating rod away from the connecting piece, a straight slide rail is slidably arranged on the sliding block, an arc-shaped block is arranged on the side of the straight slide rail, and a power ring is arranged on the side of the sliding block.

[0017] Preferably, the cleaning mechanism includes a third motor, a third rotating shaft and a mounting block;

[0018] The mounting block is arranged on the top of the operating table, the third motor is arranged on the top of the mounting block, the third rotating shaft is arranged at the output end of the third motor, a first pulley is arranged at the end of the third rotating shaft away from the third motor, a transmission belt is arranged on the outside of the first pulley, a second pulley is arranged on the side of the transmission belt away from the first pulley, an installation frame is rotatably arranged on the side of the second pulley, the bottom of the installation frame is connected to the top of the operating table, and a sponge cleaner is arranged on the side of the second pulley away from the installation frame.

[0019] Preferably, it further includes a conveying mechanism, and the conveying mechanism includes a cylinder, a first connecting frame, a push rod, a pushing frame and a rotating clamping component;

[0020] The first connecting frame is arranged on the side of the operating table, the cylinder is arranged inside the first connecting frame, the push rod is arranged at the output end of the cylinder, and the pushing frame is arranged at the end of the push rod away from the cylinder;

[0021] The rotating clamping component is arranged at the end of the pushing frame away from the push rod and is used to clamp the pipe to be tested and drive the pipe to be tested to rotate.

[0022] Preferably, the rotating clamping component includes a first motor, a first rotating shaft, a rotating disc and a connecting ring;

[0023] Motor 1 is arranged inside the pushing frame, rotating shaft 1 is arranged at the output end of Motor 1, rotating disk is arranged at the end of rotating shaft 1 far from Motor 1, connecting ring is rotatably arranged on the side of the rotating disk, the connecting ring is connected to the outside of the pushing frame, fixing blocks are arranged on the side of the rotating disk, telescopic tubes are arranged on the side of the fixing blocks, spring 1 is arranged outside the telescopic tubes, and clamping jaws are arranged at the end of the telescopic tubes far from the fixing blocks.

[0024] A detection method of a magnetic stress detection device includes the following steps:

[0025] S1. Clamp the end of the tube to be measured inside the three clamping jaws, start the motor, Motor 1 drives the three clamping jaws to rotate through the rotating disk, and the clamping jaws drive the tube to be measured to rotate;

[0026] S2. Then start the cylinder, the cylinder drives the push rod to push forward, and the push rod drives the tube to be measured to be conveyed forward through the pushing frame;

[0027] S3. Start Motor 2, Motor 2 drives the power member to rotate. When the arc surface of the power member contacts the power ring, it will squeeze the power ring, and the power ring drives the knocking block away from the tube to be measured. The power member continues to rotate. When the arc surface disengages from the power ring, the power ring loses support, and the sliding rod quickly contracts inward under the action of spring 2, thereby knocking on the tube to be measured and knocking off the rust and hard adhered debris on the tube to be measured;

[0028] S4. At the same time, start Motor 3, and Motor 3 drives the sponge brush to rotate to clean the outside of the tube to be measured through rotating shaft 3;

[0029] S5. The tube to be measured after cleaning moves to directly below the detector for detection.

[0030] Compared with the prior art, the present invention has the following beneficial technical effects: Through the setting of the knocking mechanism and the cleaning mechanism, Motor 2 drives the knocking block to knock on the outside of the tube to be measured in a circular motion, thereby removing the rust on the outside of the tube to be measured. After the removal is completed, Motor 3 drives the sponge brush to rotate, thereby wiping off the rust debris removed from the tube to be measured. In this way, the detection device can more accurately capture the change of the magnetic field, thereby more precisely evaluating the stress state and potential defects of the pipeline. At the same time, it can avoid the rust and debris from wearing the probe or sensor of the magnetic stress detection device, affecting its service life and performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic structural diagram of an embodiment of the present invention;

[0032] Figure 2 It is a schematic structural diagram of the conveying mechanism;

[0033] Figure 3Schematic structural diagram of the knocking mechanism;

[0034] Figure 4 Schematic structural diagram of the cleaning mechanism.

[0035] Reference numerals: 1, operating table; 2, support frame; 3, detector; 4, tube to be tested; 501, cylinder; 502, first connecting frame; 503, push rod; 504, pushing frame; 505, first motor; 506, first rotating shaft; 507, connecting ring; 508, rotating disc; 509, fixed block; 510, telescopic tube; 511, first spring; 512, clamping jaw; 601, second motor; 602, second connecting frame; 603, second rotating shaft; 604, power member; 605, support leg; 606, fixed ring; 607, sliding rod; 608, second spring; 609, knocking block; 610, connecting member; 611, rotating rod; 612, sliding block; 613, straight slide rail; 614, arc-shaped block; 615, power ring; 701, third motor; 702, third rotating shaft; 703, first pulley; 704, transmission belt; 705, second pulley; 706, sponge cleaner; 707, mounting frame; 708, mounting block. Detailed implementation manners

[0036] Embodiment 1

[0037] As Figures 1 - 4 shown, a magnetic stress detection device proposed by the present invention includes an operating table 1, a tube to be tested 4 located above the operating table 1, a support frame 2 arranged on the top of the operating table 1, a detector 3 arranged on the top of the support frame 2, a knocking mechanism, a cleaning mechanism, and a knocking block;

[0038] The knocking mechanism is arranged on the top of the operating table 1 and is used to comprehensively knock the rust and other sundries on the surface of the tube to be tested 4;

[0039] The cleaning mechanism is arranged on the side of the knocking mechanism and is used to wipe off the knocked rust from the tube to be tested 4;

[0040] The knocking block is arranged on the knocking mechanism. A plurality of knocking blocks are arranged around the knocking mechanism in a ring shape. When the knocking mechanism works, it drives the knocking blocks to knock on the tube to be tested 4, thereby knocking down the rust and other sundries on the tube to be tested 4.

[0041] The knocking mechanism includes a power component and a rust-removing component; the power component is arranged on the top of the operation table 1 and is used to provide power for the rust-removing component; the rust-removing component is arranged on the side of the power component and is used to knock on the pipe 4 to be tested to remove the rust on it. The power component includes a second motor 601, a second connecting frame 602, a second rotating shaft 603 and a power member 604; the second connecting frame 602 is arranged on the side of the operation table 1, the second motor 601 is arranged inside the second connecting frame 602, the second rotating shaft 603 is arranged at the output end of the second motor 601, a power member 604 is arranged at the end of the second rotating shaft 603 away from the second motor 601, one side of the power member 604 is set as an arc surface and the other side is set as a vertical surface. When the second motor 601 is started, the second motor 601 drives the second rotating shaft 603 to rotate, and the second rotating shaft 603 drives the power member 604 to rotate. The rust-removing component includes a support leg 605, a fixing ring 606, a sliding rod 607 and a second spring 608; the support leg 605 is arranged on the top of the operation table 1, the fixing ring 606 is arranged on the top of the support leg 605, there are two support legs 605 symmetrically arranged with respect to the fixing ring 606, the sliding rod 607 is slidably arranged on the fixing ring 606, and a plurality of sliding rods 607 are annularly arranged on the fixing ring 606. The second spring 608 is arranged on the outside of the sliding rod 607, and the end of the second spring 608 close to the fixing ring 606 is connected to the outside of the fixing ring 606. The end of the sliding rod 607 is connected to the side of the knocking block. A connecting member 610 is arranged at the end of the sliding rod 607 away from the knocking block. A rotating rod 611 is rotatably arranged on the side of the connecting member 610. A sliding block 612 is rotatably arranged at the end of the rotating rod 611 away from the connecting member 610. A straight slide rail 613 is slidably arranged on the sliding block 612. An arc-shaped block 614 is arranged on the side of the straight slide rail 613 and is used to connect two adjacent straight slide rails 613 together. A power ring 615 is arranged on the side of the sliding block 612, and the power ring 615 is on the rotation track of the power member 604. When the arc surface of the power member 604 contacts the power ring 615, it will squeeze the power ring 615, and the power ring 615 moves towards the fixing ring 606, so as to drive all the sliding rods 607 to move outwards through the sliding block 612 and the rotating rod 611, and then drive the knocking block 609 away from the pipe 4 to be tested. At this time, the second spring 608 is stretched. When the power member 604 continues to rotate and the arc surface disengages from the power ring 615, the power ring 615 loses support, and the sliding rod 607 quickly contracts inwards under the action of the second spring 608, so as to knock on the pipe 4 to be tested.

[0042] The cleaning mechanism includes a third motor 701, a third rotating shaft 702 and a mounting block 708; the mounting block 708 is arranged on the top of the operating table 1, the third motor 701 is arranged on the top of the mounting block 708, the third rotating shaft 702 is arranged at the output end of the third motor 701, a first pulley 703 is arranged at one end of the third rotating shaft 702 away from the third motor 701, a transmission belt 704 is arranged on the outer side of the first pulley 703, a second pulley 705 is arranged on the side of the transmission belt 704 away from the first pulley 703, a mounting bracket 707 is rotatably arranged on the side of the second pulley 705, the bottom of the mounting bracket 707 is connected to the top of the operating table 1, a sponge cleaner 706 is arranged on the side of the second pulley 705 away from the mounting bracket 707. When the third motor 701 is started, the third motor 701 drives the first pulley 703 to rotate through the third rotating shaft 702, the first pulley 703 drives the second pulley 705 to rotate through the transmission belt 704, and the second pulley 705 drives the sponge cleaner 706 to rotate and clean the outer side of the test tube 4.

[0043] Embodiment 2

[0044] As Figure 2 shown, a magnetic stress detection device and a detection method proposed by the present invention, compared with Embodiment 1, the structure of the conveying mechanism is introduced in detail in this embodiment.

[0045] The conveying mechanism includes a cylinder 501, a first connecting frame 502, a push rod 503, a pushing frame 504 and a rotating clamping assembly; the first connecting frame 502 is arranged on the side of the operating table 1, the cylinder 501 is arranged inside the first connecting frame 502, the push rod 503 is arranged at the output end of the cylinder 501, and the pushing frame 504 is arranged at the end of the push rod 503 away from the cylinder 501; the rotating clamping assembly is arranged at the end of the pushing frame 504 away from the push rod 503, and is used to clamp the tube to be tested 4 and drive the tube to be tested 4 to rotate. The rotating clamping assembly includes a first motor 505, a first rotating shaft 506, a rotating disk 508 and a connecting ring 507; the first motor 505 is arranged inside the pushing frame 504, the first rotating shaft 506 is arranged at the output end of the first motor 505, the rotating disk 508 is arranged at the end of the first rotating shaft 506 away from the first motor 505, the connecting ring 507 is rotatably arranged on the side of the rotating disk 508, the connecting ring 507 is connected to the outside of the pushing frame 504, a fixing block 509 is arranged on the side of the rotating disk 508, a telescopic tube 510 is arranged on the side of the fixing block 509, a first spring 511 is arranged on the outside of the telescopic tube 510, a clamping jaw 512 is arranged at the end of the telescopic tube 510 away from the fixing block 509, and three clamping jaws 512 are arranged annularly around the rotating disk 508. The end of the tube to be tested 4 is clamped into the inside of the three clamping jaws 512, and then the first motor 505 and the cylinder 501 are started. The first motor 505 drives the first rotating shaft 506 to rotate, the first rotating shaft 506 drives the three clamping jaws 512 to rotate through the rotating disk 508, and the clamping jaws 512 drive the tube to be tested 4 to rotate. At the same time, the cylinder 501 drives the push rod 503 to push forward, the push rod 503 drives the first motor 505 to push forward through the pushing frame 504, and drives the tube to be tested 4 to be conveyed forward during the pushing process.

[0046] Embodiment III

[0047] The detection method of a magnetic stress detection device proposed by the present invention specifically includes the following steps:

[0048] S1. Clamp the end of the tube to be tested 4 into the inside of the three clamping jaws 512, start the motor, and the first motor 505 drives the three clamping jaws 512 to rotate through the rotating disk 508, and the clamping jaws 512 drive the tube to be tested 4 to rotate;

[0049] S2. Then start the cylinder 501, the cylinder 501 drives the push rod 503 to push forward, and the push rod 503 drives the tube to be tested 4 to be conveyed forward through the pushing frame 504;

[0050] S3. Start the second motor 601. The second motor 601 drives the power component 604 to rotate. When the arc surface of the power component 604 contacts the power ring 615, it will squeeze the power ring 615. The power ring 615 drives the knocking block 609 away from the test tube 4. The power component 604 continues to rotate. When the arc surface disengages from the power ring 615, the power ring 615 loses support, and the sliding rod 607 quickly contracts inward under the action of the second spring 608, thus knocking on the test tube 4 to knock off the rust and hard-adhered debris on the test tube 4;

[0051] S4. At the same time, start the third motor 701. The third motor 701 drives the sponge cleaner 706 to rotate and clean the outer side of the test tube 4 through the third rotating shaft 702;

[0052] S5. The test tube 4 after cleaning moves to directly below the detector 3 for detection.

[0053] In summary, when the present invention is used, align the end of the test tube 4 with the axis of the rotating disk 508, then clamp it inside the three clamping jaws 512. Start the first motor 505 and the cylinder 501. The first motor 505 drives the first rotating shaft 506 to rotate. The first rotating shaft 506 drives the three clamping jaws 512 to rotate through the rotating disk 508. The clamping jaws 512 drive the test tube 4 to rotate. At the same time, the cylinder 501 drives the push rod 503 to push forward. The push rod 503 drives the first motor 505 to push forward through the push frame 504, driving the test tube 4 to be conveyed forward during the pushing process. Then start the second motor 601 and the third motor 701. The second motor 601 drives the second rotating shaft 603 to rotate. The second rotating shaft 603 drives the power component 604 to rotate. When the arc surface of the power component 604 contacts the power ring 615, it will squeeze the power ring 615. The power ring 615 moves towards the fixed ring 606, thereby driving all the sliding rods 607 to move outward through the sliding block 612 and the rotating rod 611, and further driving the knocking block 609 away from the test tube 4. At this time, the second spring 608 is stretched. The power component 604 continues to rotate. When the arc surface disengages from the power ring 615, the power ring 615 loses support, and the sliding rod 607 quickly contracts inward under the action of the second spring 608, thus knocking on the test tube 4. The third motor 701 drives the first pulley 703 to rotate through the third rotating shaft 702. The first pulley 703 drives the second pulley 705 to rotate through the transmission belt 704. The second pulley 705 drives the sponge cleaner 706 to rotate and clean the outer side of the test tube 4. The test tube 4 after cleaning is conveyed to directly below the detector 3 for detection. After one end of the test tube 4 is detected, the other end is clamped inside the clamping jaw 512 for cleaning and detection again.

[0054] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to this. Various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art.

Claims

1. A magnetic stress detection device, comprising an operating table (1) and a tube to be tested (4) located above the operating table (1); characterized in that: Also includes: A knocking mechanism, which is arranged on the top of the operating table (1) and is used to knock all the debris such as rust on the surface of the tube to be tested (4); A cleaning mechanism, which is arranged on the side of the knocking mechanism and is used to wipe off the broken rust from the tube to be tested (4); And a knocking block, which is arranged on the knocking mechanism, and a plurality of knocking blocks are arranged in a ring around the knocking mechanism. When the knocking mechanism is working, the knocking block drives the knocking block to knock on the tube to be tested (4), thereby knocking off rust and other debris on the tube to be tested (4).

2. The magnetic stress detection device according to claim 1, characterized in that: The striking mechanism includes a power component and a rust removal component; The power component is arranged on the top of the operating table (1) and is used to provide power for the rust removal component; The rust removal component is arranged on the side of the power component and is used to knock the tube to be tested (4) to remove the rust on it.

3. The magnetic stress detection device according to claim 2, characterized in that: The power assembly includes a second motor (601), a second connecting frame (602), a second rotating shaft (603) and a power member (604); The second connecting frame (602) is arranged on the side of the operating table (1), the second motor (601) is arranged on the inner side of the second connecting frame (602), the second rotating shaft (603) is arranged at the output end of the second motor (601), and a power part (604) is arranged at one end of the second rotating shaft (603) away from the second motor (601).

4. The magnetic stress detection device according to claim 2, characterized in that: The rust removal assembly comprises a support leg (605), a fixing ring (606), a sliding rod (607) and a second spring (608); The support leg (605) is arranged on the top of the operating table (1), the fixing ring (606) is arranged on the top of the support leg (605), two support legs (605) are symmetrically arranged about the fixing ring (606), the sliding rod (607) is slidably arranged on the fixing ring (606), and a plurality of sliding rods (607) are arranged in an annular shape on the fixing ring (606), the second spring (608) is arranged on the outer side of the sliding rod (607), and one end of the second spring (608) close to the fixing ring (606) is connected to the outer side of the fixing ring (606), and the sliding rod (607) is arranged on the outer side of the sliding rod (607). The end of the moving rod (607) is connected to the side of the knocking block, the end of the sliding rod (607) away from the knocking block is provided with a connecting piece (610), the side of the connecting piece (610) is rotatably provided with a rotating rod (611), the end of the rotating rod (611) away from the connecting piece (610) is rotatably provided with a sliding block (612), a straight slide rail (613) is slidably provided on the sliding block (612), the side of the straight slide rail (613) is provided with an arc block (614), and the side of the sliding block (612) is provided with a power ring (615).

5. The magnetic stress detection device according to claim 1, characterized in that: The cleaning mechanism comprises a motor three (701), a rotating shaft three (702) and a mounting block (708); The mounting block (708) is arranged on the top of the operating table (1), the motor three (701) is arranged on the top of the mounting block (708), the rotating shaft three (702) is arranged on the output end of the motor three (701), the rotating shaft three (702) is arranged on the end away from the motor three (701) with a pulley one (703), the outer side of the pulley one (703) is arranged with a transmission belt (704), the side of the transmission belt (704) away from the pulley one (703) is arranged with a pulley two (705), the side of the pulley two (705) is rotatably arranged with a mounting frame (707), the bottom of the mounting frame (707) is connected to the top of the operating table (1), and the side of the pulley two (705) away from the mounting frame (707) is provided with a sponge (706).

6. The magnetic stress detection device according to claim 1, characterized in that: It also includes a conveying mechanism, which includes a cylinder (501), a connecting frame (502), a push rod (503), a pushing frame (504) and a rotating clamping assembly; The connecting frame (502) is arranged on the side of the operating table (1), the cylinder (501) is arranged on the inner side of the connecting frame (502), the push rod (503) is arranged at the output end of the cylinder (501), and the pushing frame (504) is arranged at the end of the push rod (503) away from the cylinder (501); The rotating clamping assembly is arranged at the end of the pushing frame (504) away from the pushing rod (503), and is used to clamp the tube to be tested (4) and drive the tube to be tested (4) to rotate.

7. The magnetic stress detection device according to claim 6, characterized in that: The rotating clamping assembly includes a motor 1 (505), a rotating shaft 1 (506), a rotating disk (508) and a connecting ring (507); The motor (505) is arranged on the inner side of the pushing frame (504), the rotating shaft (506) is arranged on the output end of the motor (505), the rotating disk (508) is arranged on the end of the rotating shaft (506) away from the motor (505), the connecting ring (507) is rotatably arranged on the side of the rotating disk (508), the connecting ring (507) is connected to the outer side of the pushing frame (504), a fixing block (509) is arranged on the side of the fixing block (509), a telescopic tube (510) is arranged on the outer side of the telescopic tube (510), a spring (511) is arranged on the outer side of the telescopic tube (510), and a clamping claw (512) is arranged on the end of the telescopic tube (510) away from the fixing block (509).

8. A detection method of the magnetic stress detection device according to claim 7, characterized in that: The following steps are involved: S1, clamp the end of the tube (4) to be tested into the inner side of the three clamping jaws (512), start the motor, the motor 1 (505) drives the three clamping jaws (512) to rotate through the rotating disk (508), and the clamping jaws (512) drive the tube (4) to be tested to rotate; S2, then start the cylinder (501), the cylinder (501) drives the push rod (503) to push forward, and the push rod (503) drives the tube to be tested (4) to be transported forward through the pushing frame (504); S3, starting the second motor (601), the second motor (601) drives the power member (604) to rotate, and when the arc surface of the power member (604) contacts the power ring (615), it squeezes the power ring (615), and the power ring (615) drives the knocking block (609) away from the tube to be tested (4), and the power member (604) continues to rotate. When the arc surface is separated from the power ring (615), the power ring (615) loses support, and the sliding rod (607) quickly contracts inward under the action of the second spring (608), thereby knocking on the tube to be tested (4), knocking off the rust and hard adhering debris on the tube to be tested (4); S4, simultaneously starting the motor three (701), the motor three (701) drives the sponge (706) to rotate and clean the outer side of the tube to be tested (4) through the rotating shaft three (702); S5. After cleaning, the tube to be tested (4) is moved to the position directly below the detector (3) for testing.

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