Efficient and rapid flaw detection device for pipes and bars

Through the design of the auxiliary positioning mechanism of the pipe rod, combined with the threaded rod and the rotating roller, the longitudinal and lateral flaw detection of the pipe rod is realized, solving the problem of incomplete detection in the prior art, and improving the detection efficiency and practicality.

CN120334477APending Publication Date: 2025-07-18HUNAN VALIN XIANGTAN IRON & STEEL CO LTD
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Patent Information

Application Number
CN202510509163.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-22
Publication Date
2025-07-18

AI Technical Summary

Technical Problem

The existing pipe rod detection device only has one flaw detection method, and cannot detect longitudinal defects parallel to the pipe, resulting in incomplete detection and reducing the practicality of the device.

Method used

The auxiliary positioning mechanism of pipe rod is adopted, combined with the design of the threaded rod and the rotating roller, longitudinal and lateral flaw detection is achieved. The threaded rod drives the slider to move and longitudinal flaw detection is performed. The rotating roller drives the pipe to rotate for lateral flaw detection, and automatic feeding is achieved with the feeding roller.

Benefits of technology

It realizes comprehensive flaw detection of pipe rods, improves detection efficiency and practicality of the device, and is suitable for batch inspection.

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Abstract

The invention discloses an efficient and rapid flaw detection device for pipes and bars, and relates to the technical field of pipe detection equipment. The efficient and rapid flaw detection device for the pipes and the bars comprises a device support and an auxiliary positioning mechanism for the pipes and the bars, the auxiliary positioning mechanism for the pipes and the bars comprises a second motor, a rotating roller, a third motor, a two-way screw, a moving block, a fixing plate, a supporting plate, a connecting piece and a connecting rod, and the second motor is fixedly connected to the surface of the device support; the two rotating rollers are both rotationally connected to the surface of the device support, the third motor is fixedly connected to the surface of the device support, the two-way screw rods are rotationally connected to the opposite faces of the device support, and the two moving blocks are both connected to the outer surfaces of the two-way screw rods in a threaded and sleeving mode; the pipe and bar auxiliary positioning mechanism can fix the pipe and bar and realize flaw detection at the same time, the threaded rod drives the sliding block to move to realize longitudinal flaw detection of the pipe and bar, the rotating roller drives the sliding block to rotate to realize transverse flaw detection of the pipe and bar, and the effect is more comprehensive.
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Description

Technical Field

[0001] The present invention relates to the technical field of pipe detection equipment, and particularly relates to a high-efficiency and rapid flaw detection device for pipe and bar materials. Background Art

[0002] Through flaw detection technologies (such as ultrasonic, magnetic particle, X-ray, etc.), flaws such as cracks, pores, and inclusions inside the pipe and bar materials can be accurately detected. If these flaws are not discovered in time, they may cause structural failure or safety accidents during use, especially in high-pressure, high-temperature, or corrosive environments with higher risks. Non-destructive testing technology can effectively evaluate the mechanical properties and corrosion resistance of materials without damaging the material structure. Through flaw detection, damage caused by manufacturing processes, transportation, or environmental factors can be detected early, avoiding the expansion of flaws leading to fracture or leakage, thereby extending the service life of materials and structural components.

[0003] Patent Publication No. CN220231613U discloses a pipe flaw detection device, including a base. A connecting ring is provided on the top of the base, and the connecting ring slides vertically on the top of the base. A lifting mechanism for lifting the connecting ring is provided inside the base. An arc-shaped groove is formed on the inner arc surface of the connecting ring, and a moving ring slides inside the arc-shaped groove. Limiting grooves are respectively formed on two opposite sides inside the arc-shaped groove. Two limiting columns are fixedly connected to both sides of one end of the moving ring symmetrically, and the two limiting columns slide inside the two limiting grooves respectively. Connecting blocks are fixedly connected to both ends inside the moving ring, and detectors are respectively installed on the surfaces of the two connecting blocks. A sliding mechanism for sliding the moving ring is provided inside the connecting ring. This device can detect the entire circumference of the pipe surface to achieve surface flaw detection of the pipe. However, the defect is that pipes generally also have longitudinal defects parallel to the pipe, and only one flaw detection method is available, which cannot ensure comprehensive detection of the pipe, thus reducing the practicality of the device. Moreover, when loading pipe and bar materials, it needs to be manually placed on the top of the positioning plate, reducing the efficiency of batch detection. Therefore, a high-efficiency and rapid flaw detection device for pipe and bar materials is needed. Summary of the Invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and provide a high-efficiency and rapid flaw detection device for pipe and bar materials, which can solve the problem that the device only has one flaw detection method and cannot detect longitudinal defects parallel to the pipe, and cannot ensure comprehensive detection of the pipe, thereby reducing the practicality of the device.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a high-efficiency and rapid flaw detection device for pipes and rods, comprising a device support and a pipe and rod auxiliary positioning mechanism, the pipe and rod auxiliary positioning mechanism comprising a second motor, a rotating roller, a third motor, a bidirectional screw, a moving block, a fixed plate, a support plate, a connecting piece and a connecting rod, the second motor is fixedly connected to the surface of the device support, the number of rotating rollers is two and both are rotatably connected to the surface of the device support, the third motor is fixedly connected to the surface of the device support, the bidirectional screw is rotatably connected to the opposite surface of the device support, the number of moving blocks is two and both are threadedly sleeved on the outer surface of the bidirectional screw, the fixed plate is fixedly connected to the surface of the device support, the support plate is slidably connected to the opposite surface of the device support, the number of connecting pieces is multiple and are respectively fixedly connected to the surfaces of the moving block and the support plate, and the number of connecting rods is two and both are rotatably connected to the surface of the connecting piece.

[0006] Preferably, the top of the support plate is rotatably connected to the pipe body, the top of the support plate is provided with a placement groove adapted to the pipe body, and the surface of the fixed plate is provided with a groove.

[0007] Preferably, a groove is provided on the surface of the fixing plate for the connecting rod to pass through, and the top of the pipe body is in contact with the rotating roller.

[0008] Preferably, a first motor is fixedly connected to the surface of the device bracket, and a threaded rod is fixedly connected to the output end of the first motor.

[0009] Preferably, a sliding block is threadedly sleeved on the outer surface of the threaded rod, and a flaw detection instrument is fixedly connected to the bottom of the sliding block.

[0010] Preferably, a limiting plate is fixedly connected to the surface of the device bracket, and the sliding block is slidably connected to the limiting plate.

[0011] Preferably, the bottom of the device bracket is fixedly connected to the device base, and the top of the device base is fixedly connected to the support plate.

[0012] Preferably, a mounting plate is fixedly connected to the top of the support plate, and a plurality of feeding rollers are rotatably connected to the surface of the mounting plate.

[0013] Preferably, the surface of the feed roller is rotatably connected to a plurality of rotating shafts, each feed roller is fixedly sleeved on the outer surface of the rotating shaft, and the outer surface of each rotating shaft is sleeved with a pulley.

[0014] Preferably, the outer surface of the pulley is provided with a belt for transmission, the outer surface of the feed roller is fixedly sleeved with an anti-skid layer, the surface of the mounting plate is fixedly connected to a fourth motor, and the fourth motor is fixedly connected to the rotating shaft.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. The efficient and rapid flaw detection device for pipes and bars can realize flaw detection while fixing the pipes and bars through the auxiliary positioning mechanism of the pipes and bars. The threaded rod drives the movement of the slider to realize the longitudinal flaw detection of the pipes and bars. The rotating roller drives it to rotate to realize the transverse flaw detection of the pipes and bars. The effect is more comprehensive, which solves the problem that the device only has one flaw detection method, cannot detect longitudinal defects parallel to the pipe, cannot guarantee comprehensive detection of the pipe, and thus reduces the practicality of the device.

[0017] 2. The tube and bar high-efficiency and rapid flaw detection device places the tube and bar on the top of the feeding roller, starts the fourth motor to drive the rotating shaft to rotate, and realizes the simultaneous and unidirectional rotation of each rotating shaft through the action of multiple pulleys and belts, and transports the tube and bar to the surface of the support plate, thereby realizing the rapid feeding effect of the tube and bar, being suitable for batch detection and increasing the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0019] Figure 1 It is a schematic diagram of the main body of the present invention;

[0020] Figure 2 It is a schematic diagram of a support plate of the present invention;

[0021] Figure 3 It is a schematic diagram of the placement slot of the present invention;

[0022] Figure 4 It is a schematic diagram of a limiting plate of the present invention;

[0023] Figure 5 It is a schematic diagram of the feed roller of the present invention;

[0024] Figure 6 For the present invention Figure 5 Schematic diagram at point A in the middle.

[0025] Figure numerals: 1. device bracket; 2. device base; 3. support plate; 4. feed roller; 5. first motor; 6. threaded rod; 7. slider; 8. flaw detector; 9. second motor; 10. rotating roller; 11. third motor; 12. bidirectional screw; 13. moving block; 14. fixing plate; 15. support plate; 16. pipe body; 17. placement groove; 18. connecting piece; 19. connecting rod; 20. limit plate; 21. slot; 22. mounting plate; 23. fourth motor; 24. rotating shaft; 25. pulley; 26. belt; 27. anti-slip layer. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0027] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention.

[0028] In the description of the present invention, "greater than", "less than", "exceeding", etc. are understood as not including the number itself, and "above", "below", "within", etc. are understood as including the number itself. If the first and second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0030] Please refer to Figures 1-6 , the present invention provides a technical solution: a high-efficiency and rapid flaw detection device for pipe and bar materials, including a device support 1 and a pipe and bar material auxiliary positioning mechanism. The pipe and bar material auxiliary positioning mechanism includes a second motor 9, rotating rollers 10, a third motor 11, a bidirectional screw 12, moving blocks 13, fixed plates 14, a support plate 15, connecting pieces 18 and connecting rods 19. The second motor 9 is fixedly connected to the surface of the device support 1. The number of rotating rollers 10 is two and both are rotatably connected to the surface of the device support 1. The third motor 11 is fixedly connected to the surface of the device support 1. The bidirectional screw 12 is rotatably connected to the opposite surfaces of the device support 1. The number of moving blocks 13 is two and both are threadedly sleeved on the outer surface of the bidirectional screw 12. The fixed plate 14 is fixedly connected to the surface of the device support 1. The support plate 15 is slidably connected to the opposite surfaces of the device support 1. The number of connecting pieces 18 is multiple and they are respectively fixedly connected to the surfaces of the moving blocks 13 and the support plate 15. The number of connecting rods 19 is two and both are rotatably connected to the surfaces of the connecting pieces 18.

[0031] Furthermore, the top of the support plate 15 is rotatably connected to the pipe body 16, and a placement groove 17 adapted to the pipe body 16 is opened on the top of the support plate 15. A groove 21 is opened on the surface of the fixed plate 14, and a groove for the connecting rod 19 to pass through is opened on the surface of the fixed plate 14. The top of the pipe body 16 contacts the rotating roller 10, and the surface of the device bracket 1 is fixedly connected to the first motor 5, and the output end of the first motor 5 is fixedly connected to the threaded rod 6, and the outer surface of the threaded rod 6 is threadedly sleeved with a slider 7, and the bottom of the slider 7 is fixedly connected to the flaw detector 8, the surface of the device bracket 1 is fixedly connected to the limit plate 20, and the slider 7 is slidably connected to the limit plate 20, the bottom of the device bracket 1 is fixedly connected to the device base 2, and the top of the device base 2 is fixedly connected to the support plate 3.

[0032] Furthermore, a mounting plate 22 is fixedly connected to the top of the support plate 3, a plurality of feed rollers 4 are rotatably connected to the surface of the mounting plate 22, a plurality of rotating shafts 24 are rotatably connected to the surface of the feed rollers 4, each feed roller 4 is fixedly sleeved on the outer surface of the rotating shaft 24, a pulley 25 is sleeved on the outer surface of each rotating shaft 24, a belt 26 is provided on the outer surface of the pulley 25 for transmission, an anti-slip layer 27 is fixedly sleeved on the outer surface of the feed roller 4, a fourth motor 23 is fixedly connected to the surface of the mounting plate 22, and the fourth motor 23 is fixedly connected to the rotating shaft 24.

[0033] Furthermore, when the device is used, the pipe and rod are placed on the top of the feeding roller 4, and then the fourth motor 23 is started to drive the rotating shaft 24 to rotate. Through the action of multiple pulleys 25 and belts 26, each rotating shaft 24 rotates simultaneously and in the same direction to transport the pipe and rod to the surface of the support plate 15, and then the third motor 11 is started to drive the bidirectional screw 12 to rotate, so that the two moving blocks 13 are close to each other, and the support plate 15 is driven to rise through the action of the connecting rod 19 until the pipe body 16 can contact the rotating roller 10, and then the first motor 5 is started to drive the threaded rod 6 to rotate, so that the slider 7 and the flaw detector 8 move and perform longitudinal flaw detection on the pipe and rod, and the second motor 9 is started to drive the rotating roller 10 to rotate. The friction between the rotating roller 10 and the pipe can make the pipe rotate, thereby realizing transverse flaw detection between the pipes.

[0034] Furthermore, the tube and rod auxiliary positioning mechanism can be used to fix the tube and rod and realize flaw detection at the same time. The threaded rod 6 drives the movement of the slider 7 to realize longitudinal flaw detection of the tube and rod. The rotating roller 10 drives its rotation to realize transverse flaw detection of the tube and rod. The effect is more comprehensive, which solves the problem that the device only has one flaw detection method, cannot detect longitudinal defects parallel to the tube, cannot guarantee comprehensive detection of the tube, and thus reduces the practicality of the device.

[0035] Structural description: Device bracket 1: a bracket used to fix each structure;

[0036] Device base 2: Fixedly connected to the bottom of the device bracket 1, playing a supporting role for the device;

[0037] Support plate 3: Fixedly connected to the top of the device base 2, used for installing the feeding roller 4;

[0038] Feeding roller 4: Rotationally connected to the surface of the support plate 3, used for the auxiliary loading and unloading of pipe and bar materials;

[0039] First motor 5: Fixedly connected to the surface of the device bracket 1, used to drive the rotation of the threaded rod 6 to provide power for the movement of the slider 7;

[0040] Flaw detection instrument 8: Fixedly connected to the bottom of the slider 7, an instrument for flaw detection of pipe and bar materials;

[0041] Second motor 9: Fixedly connected to the surface of the device bracket 1, providing power for the rotation of the rotating roller 10;

[0042] Rotating roller 10: Rotationally connected to the surface of the device bracket 1, used to rotate the pipe and bar materials;

[0043] Third motor 11: Fixedly connected to the surface of the device bracket 1, driving the rotation of the bidirectional screw rod 12 to provide power for the movement of the moving block 13;

[0044] Fixed plate 14: Fixedly connected to the surface of the device bracket 1, used to limit the movement of the support plate 15;

[0045] Support plate 15: Slidingly connected to the surface of the device bracket 1, used to drive the lifting of the pipe body 16;

[0046] Placement groove 17: Opened on the top of the support plate 15, used for the auxiliary positioning of pipe and bar materials;

[0047] Connecting piece 18: Fixedly connected to the surfaces of the moving block 13 and the support plate 15, located at the top of the moving block 13 and below the support plate 15, cooperating with the movement of the connecting rod 19 and the moving block 13 to realize the lifting of the support plate 15;

[0048] Connecting rod 19: Rotationally connected to the surface of the connecting piece 18, used to drive the lifting of the support plate 15;

[0049] Limit plate 20: Fixedly connected to the surface of the device bracket 1, slidingly connected to the slider 7, used to limit the movement of the slider 7;

[0050] Mounting plate 22: Fixedly connected to the top of the support plate 3, used for installing the feeding roller 4;

[0051] Fourth motor 23: Fixedly connected to the surface of the mounting plate 22, providing power for the rotation of the rotating shaft 24;

[0052] Rotating shaft 24: Rotationally connected to the surface of the mounting plate 22 and fixedly connected to the output end of the fourth motor 23, providing power for the rotation of the feeding roller 4;

[0053] Pulley 25: Sleeved on the surface of the rotating shaft 24, driving multiple rotating shafts 24 to rotate simultaneously;

[0054] Belt 26: Transmissionally arranged on the outer surface of the pulley 25, driving the pulley 25 to rotate;

[0055] Anti-slip layer 27: Fixedly sleeved on the outer surface of the feeding roller 4, increasing the friction force.

[0056] 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 the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the technical field, various changes can also be made without departing from the gist of the present invention.

Claims

1. An efficient and rapid flaw detection device for tubes and bars, characterized in that, include: Device support (1); The pipe and rod auxiliary positioning mechanism comprises a second motor (9), a rotating roller (10), a third motor (11), a bidirectional screw (12), a moving block (13), a fixed plate (14), a supporting plate (15), a connecting piece (18) and a connecting rod (19), wherein the second motor (9) is fixedly connected to the surface of a device support (1), the number of the rotating rollers (10) is two and both are rotatably connected to the surface of the device support (1), the third motor (11) is fixedly connected to the surface of the device support (1), and the bidirectional screw (12) is a movable ... and the bidirectional screw (12) is a movable block (13), a fixed plate (14), a supporting plate (15), a connecting piece (18) and a connecting rod (19), wherein the second motor (9) is fixedly connected to the surface of a device support (1), and the bidirectional screw (12) is a movable block (13), a fixed plate (14), a supporting plate (15), a connecting piece (18) and a connecting rod (19), wherein the second motor (9) is fixedly connected to the surface of a device support (1), and the bidirectional screw (12) is a movable block (13), a fixed plate (14), a supporting plate (15), a connecting piece (18) and a connecting rod (19), The bidirectional screw (12) is rotatably connected to the opposite surface of the device bracket (1), the number of movable blocks (13) is two and both are threadedly sleeved on the outer surface of the bidirectional screw (12), the fixing plate (14) is fixedly connected to the surface of the device bracket (1), the support plate (15) is slidably connected to the opposite surface of the device bracket (1), the number of connecting members (18) is multiple and respectively fixedly connected to the surfaces of the movable block (13) and the support plate (15), and the number of connecting rods (19) is two and both are rotatably connected to the surface of the connecting member (18).

2. The high-efficiency and rapid flaw detection device for pipe and bar materials according to claim 1, characterized in that: The top of the support plate (15) is rotatably connected to the pipe body (16), the top of the support plate (15) is provided with a placement groove (17) adapted to the pipe body (16), and the surface of the fixing plate (14) is provided with a groove (21).

3. An efficient and rapid flaw detection device for pipe and bar materials according to claim 1, characterized in that: The surface of the fixing plate (14) is provided with a slot for the connecting rod (19) to pass through, and the top of the pipe body (16) is in contact with the rotating roller (10).

4. An efficient and rapid flaw detection device for pipe and bar materials according to claim 1, characterized in that: A first motor (5) is fixedly connected to the surface of the device bracket (1), and a threaded rod (6) is fixedly connected to the output end of the first motor (5).

5. The efficient and rapid flaw detection device for pipe and bar materials according to claim 4, characterized in that: The outer surface of the threaded rod (6) is threadedly sleeved with a slider (7), and the bottom of the slider (7) is fixedly connected with a flaw detection instrument (8).

6. The high-efficiency and rapid flaw detection device for pipe and bar materials according to claim 1, characterized in that: The surface of the device bracket (1) is fixedly connected to a limit plate (20), and the slider (7) is slidably connected to the limit plate (20).

7. An efficient and rapid flaw detection device for pipe and bar materials according to claim 1, characterized in that: The bottom of the device bracket (1) is fixedly connected to a device base (2), and the top of the device base (2) is fixedly connected to a support plate (3).

8. An efficient and rapid flaw detection device for pipe and bar materials according to claim 7, characterized in that: The top of the support plate (3) is fixedly connected to a mounting plate (22), and the surface of the mounting plate (22) is rotatably connected to a plurality of feeding rollers (4).

9. The high-efficiency and rapid flaw detection device for pipe and bar materials according to claim 8, characterized in that: The surface of the feeding roller (4) is rotatably connected to a plurality of rotating shafts (24), each feeding roller (4) is fixedly sleeved on the outer surface of the rotating shaft (24), and the outer surface of each rotating shaft (24) is sleeved with a belt pulley (25).

10. The high-efficiency and rapid flaw detection device for pipe and bar materials according to claim 9, characterized in that: The outer surface of the pulley (25) is provided with a belt (26) for transmission, the outer surface of the feeding roller (4) is fixedly sleeved with an anti-slip layer (27), the surface of the mounting plate (22) is fixedly connected with a fourth motor (23), and the fourth motor (23) is fixedly connected to the rotating shaft (24).

Citation Information

Patent Citations

  • Pipe flaw detection equipment

    CN220231613U