An automatic inspection device for large-diameter steel pipes

Abstract

This utility model relates to the field of steel pipe testing technology, and in particular to an automatic testing device for large-diameter steel pipes. The technical solution includes: a guide seat with first guide rails symmetrically distributed on both sides of a rack; a testing module slidably mounted on the guide seat via the first guide rails and the rack; the module includes a base plate, a support, etc.; the base plate has a fourth motor driving a gear that meshes with the rack; a feeding rack is provided on one side of the guide seat, and a central support frame and symmetrically distributed side support frames are provided on the other side, with the central support frame corresponding to the middle of the guide seat; a lifting frame is provided between the central and side support frames. The central and side support frames can move and transport the steel pipe to the testing station, where the testing module slides to perform the testing. After testing, the lifting frame lifts the steel pipe and unloads it via the feeding rack. This utility model, through the coordination of the guide seat, testing module, support frame, and lifting frame, achieves automatic steel pipe transport, precise sliding testing, and stable unloading, reducing manual intervention, adapting to multiple specifications of steel pipes, and improving testing efficiency and operational safety.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe testing technology, specifically to an automatic testing device for large-diameter steel pipes. Background Technology

[0002] In the field of steel pipe manufacturing and testing, quality control of large-diameter steel pipes is a crucial link in ensuring industrial safety. Traditional steel pipe testing methods mainly rely on manual operation, which suffers from low testing efficiency, unstable accuracy, and insufficient automation. With the development of industrial automation technology, some enterprises have begun to adopt automated testing equipment.

[0003] Existing testing devices often employ fixed-size support structures, making it impossible to flexibly adjust the support position according to the length, diameter, and other specifications of the steel pipe. This leads to misalignment and swaying when steel pipes of different specifications are transported to the testing station, affecting the accuracy of test results and potentially causing safety hazards due to unstable pipe support. Some adjustable support structures rely on manual adjustment, which is cumbersome and has low adjustment precision, making it difficult to adapt to the diverse steel pipe specifications required in mass production. Furthermore, in traditional testing devices, the movement of the testing module is mostly achieved through manual pushing or simple mechanical transmission, failing to achieve smooth and uniform sliding along the length of the steel pipe. This results in the testing head not fully covering the steel pipe surface. Additionally, circumferential testing of the steel pipe requires manual rotation, increasing the labor intensity of operators and easily leading to blind spots due to uneven rotation speed and angular deviations. This compromises the integrity and reliability of test results, especially for large-diameter steel pipes, where manual rotation is difficult and inefficient, severely restricting testing efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an automatic detection device for large-diameter steel pipes, solving the problems mentioned in the background art.

[0005] The solution to the above-mentioned technical problems provided by this utility model is as follows:

[0006] An automatic inspection device for large-diameter steel pipes includes:

[0007] A guide seat is provided with a first guide rail and a rack, the first guide rail being symmetrically distributed on both sides of the rack; a detection module is slidably mounted on the guide seat via the first guide rail and the rack; the detection module includes a base plate, a bracket and a support frame mounted on the base plate, a detection head mounted on the bracket, and a gear and a slider mounted on the bottom end of the base plate; a fourth motor is also mounted on the base plate, the output end of the fourth motor driving the gear, the gear meshing with the rack for transmission;

[0008] The unloading rack is located on one side of the guide seat;

[0009] The intermediate support frame and the side support frame are disposed on the side of the guide seat away from the unloading frame; the intermediate support frame corresponds to the middle of the guide seat, and the side support frames are symmetrically distributed on both sides of the intermediate support frame;

[0010] A lifting frame is disposed between the intermediate support frame and the side support frame;

[0011] The intermediate support frame and the side support frame can move toward the guide seat to transport the steel pipe to the inspection station. The inspection module can slide along the guide seat to inspect the steel pipe. After the inspection is completed, the lifting frame can lift the steel pipe to realize unloading through the unloading frame.

[0012] Based on the above technical solution, the present invention can be further improved as follows.

[0013] Furthermore, the unloading rack includes a first column, a support arm rotatably mounted on the top of the first column via a rotating shaft, and spring torquers mounted on both ends of the rotating shaft; a support plate is provided on the lower surface of the support arm, and the support arm is arranged at an angle, with the support plate located at the angle between the support arm and the first column.

[0014] The beneficial effects of adopting the above-mentioned further solutions are:

[0015] When the steel pipe is lifted to the unloading rack by the lifting frame, it slides down the support arm under gravity due to the inclined arrangement of the support arm. A spring torque device provides elastic support and a restoring force to the support arm, cushioning the pipe's descent and preventing violent collisions caused by excessive speed. The support plate, located at the angle between the support arm and the first column, limits the arm's rotation, preventing excessive rotation that could cause the pipe to slip uncontrollably. This ensures the pipe slides smoothly and orderly down the support arm, achieving safe and reliable unloading and reducing the risk of damage during the process.

[0016] Furthermore, the lifting frame includes a second column, a first cylinder vertically mounted on the second column, a limiting block mounted on one side of the second column, a guide rod slidably mounted in the limiting block, and a V-shaped bracket mounted on the output end of the first cylinder; the V-shaped bracket is connected to the guide rod, and its movement direction is limited by the cooperation of the guide rod and the limiting block.

[0017] The beneficial effects of adopting the above-mentioned further solutions are:

[0018] The first cylinder, acting as the power source, provides stable and sufficient power to raise or lower the V-shaped bracket. The V-shaped bracket is connected to a guide rod, which slides within a limiting block. This design restricts the movement of the V-shaped bracket, allowing it to move only in a vertical straight line, ensuring the accuracy and smoothness of the lifting action. When lifting steel pipes, it can accurately lift them to the designated position, facilitating subsequent unloading operations and improving the overall efficiency and reliability of the testing device.

[0019] Furthermore, the intermediate support frame includes a base, a second guide rail disposed on the base, a first frame slidably mounted on the base via the second guide rail, a first support wheel frame mounted on the first frame, a first motor mounted on one side of the base, and a lead screw driven by the first motor and threadedly engaged with the first frame.

[0020] The beneficial effects of adopting the above-mentioned further solutions are:

[0021] The first motor drives the lead screw to rotate, and the lead screw engages with the first frame via a threaded transmission, allowing the first frame to slide smoothly along the second guide rail on the base. This transmission method enables precise position control, allowing the position of the first frame to be flexibly adjusted according to steel pipes of different lengths and specifications, thereby accurately conveying the steel pipes to the inspection station for precise positioning. This improves the adaptability of the intermediate support frame to different steel pipes and the accuracy of conveying them, providing a solid foundation for subsequent inspection work.

[0022] Furthermore, the side support frame includes a base, a third guide rail disposed on the base, a second frame slidably mounted on the base via the third guide rail, a second support wheel frame mounted on the second frame, a third motor mounted on one side of the base, and a lead screw driven by the third motor and threadedly engaged with the second frame.

[0023] The beneficial effects of adopting the above-mentioned further solutions are:

[0024] Similar to the intermediate support frame, the side support frame is driven by a third motor to rotate a lead screw, causing the second frame to slide along a third guide rail on the base. This design allows the side support frame to work in conjunction with the intermediate support frame, precisely adjusting the position of the second frame according to the specifications and length of the steel pipe, and working together with the intermediate support frame to stably support the steel pipe at the inspection station. At the same time, this structure offers high flexibility and versatility, adapting to the inspection needs of various types of steel pipes, thus improving the overall applicability of the inspection device.

[0025] Furthermore, a second cylinder is also installed on the second frame of the side support frame, and a slide plate is installed on the output end of the second cylinder. A top cone and a second motor for driving the top cone to rotate are installed on the slide plate.

[0026] The beneficial effects of adopting the above-mentioned further solutions are:

[0027] When multi-angle inspection of the steel pipe is required, the output end of the second cylinder extends, pushing the slide plate along the second frame to bring the top cone close to the end of the steel pipe and clamp it firmly, achieving a stable grip. Subsequently, the second motor drives the top cone to rotate, causing the clamped steel pipe to rotate around its own axis. This design allows the inspection head to perform inspections in different states, including when the steel pipe is stationary or rotating, without the need for manual rotation. This not only improves inspection efficiency but also enables comprehensive inspection of the steel pipe from multiple angles, further ensuring the accuracy and reliability of the inspection results.

[0028] Furthermore, a spiral spring is provided inside the spring torquer.

[0029] The beneficial effects of adopting the above-mentioned further solutions are:

[0030] The spiral spring possesses excellent elasticity and energy storage characteristics. When the support arm rotates, the spiral spring generates corresponding elastic force according to the rotation direction and angle of the support arm, providing stable elastic support and restoring force. Compared to ordinary springs, the spiral spring can provide greater elastic force within a smaller space, and the force change is relatively smooth. This makes the rotation of the support arm more stable during the sliding of the steel pipe, resulting in better cushioning and further improving the stability and safety of the unloading process.

[0031] Furthermore, the fourth motor of the detection module is located on the base plate and on one side of the support frame.

[0032] The beneficial effects of adopting the above-mentioned further solutions are:

[0033] By mounting the fourth motor on the base plate and on one side of the support frame, this layout makes full use of the internal space of the detection module, resulting in a more compact structure. Simultaneously, this rational placement helps reduce the impact of vibrations generated during motor operation on other components, ensuring the stability and accuracy of the detection module during sliding. Furthermore, this layout facilitates the installation, maintenance, and repair of the fourth motor, improving the maintainability of the equipment.

[0034] This utility model provides an automatic detection device for large-diameter steel pipes. It has the following beneficial effects:

[0035] The inspection module is driven by a fourth motor, which meshes with a rack and pinion on the guide seat. Simultaneously, a slider slides along the first guide rail, enabling smooth and precise movement of the inspection module on the guide seat. This movement method ensures that the inspection head moves at a uniform speed and in a straight line along the axial direction of the steel pipe, allowing for a comprehensive and detailed inspection of the entire outer surface of the pipe, leaving no part unchecked. This significantly improves the accuracy and comprehensiveness of the inspection, effectively preventing quality problems from being missed due to insufficient inspection.

[0036] Both the intermediate and side support frames utilize a motor-driven lead screw that engages with the machine frame's threaded transmission. By controlling the operation of the first and third motors, the movement distance and speed of the first and second frames can be precisely controlled. This allows for flexible adjustment of the positions of the intermediate and side support frames according to steel pipes of different lengths and specifications, accurately conveying the steel pipes to the inspection station for precise positioning. This flexibility enables the automatic inspection device to adapt to the inspection needs of various types of steel pipes, improving the equipment's versatility and practicality.

[0037] The support arm of the unloading rack is rotatably mounted on the top of the first column via a pivot, with spring torque devices installed at both ends of the pivot. The spiral springs within these torque devices provide elastic support and a restoring force to the support arm. When the steel pipe is lifted to the unloading rack by the lifting frame, it slides down the inclined support arm under gravity. The support arm rotates around the pivot at a certain angle, and the support plate, located at the angle between the support arm and the first column, limits the rotation amplitude of the support arm, preventing excessive rotation that could cause the steel pipe to slip and fall uncontrollably. This design ensures a smooth and orderly unloading process, avoiding damage caused by collisions or falls during unloading, and improving the safety and reliability of the unloading process. Attached Figure Description

[0038] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0039] In the attached diagram:

[0040] Figure 1 This is a schematic diagram of the main appearance of this utility model;

[0041] Figure 2 This is a schematic diagram of the appearance of the intermediate support frame of this utility model;

[0042] Figure 3 This is a schematic diagram of the appearance of the lifting frame of this utility model;

[0043] Figure 4 This is a schematic diagram of the appearance of the side support frame of this utility model;

[0044] Figure 5 This is a schematic diagram of the main appearance of the detection module of this utility model;

[0045] Figure 6 This is a bottom view of the detection module of this utility model;

[0046] Figure 7 This is a front view schematic diagram of the material unloading rack of this utility model;

[0047] Figure 8 This is a schematic diagram of the lifting state of the unloading rack of this utility model.

[0048] The attached diagram lists the components represented by each number as follows:

[0049] 1. Guide seat; 101. First guide rail; 102. Rack; 2. Unloading rack; 201. Spring torque device; 202. First column; 203. Support plate; 204. Support arm; 3. Intermediate support frame; 301. First support wheel frame; 302. First frame; 303. Second guide rail; 304. First motor; 305. Lead screw; 306. Base; 4. Detection module; 401. Bracket; 402. Fourth motor; 403. Support 404 Support frame; 405 Base plate; 406 Detection head; 407 Gear; 5. Lifting frame; 501 V-shaped bracket; 502 Guide rod; 503 Limiting block; 504 First cylinder; 505 Second column; 6. Side support frame; 601 Second support wheel frame; 602 Top cone; 603 Slide plate; 604 Second cylinder; 605 Second motor; 606 Second frame; 607 Third motor; 608 Third guide rail. Detailed Implementation

[0050] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0051] Please see Figures 1 to 8 As shown, the embodiments provided by this utility model are as follows:

[0052] Example 1

[0053] An automatic inspection device for large-diameter steel pipes includes:

[0054] Guide seat 1, on which a first guide rail 101 and a rack 102 are provided, the first guide rail 101 being symmetrically distributed on both sides of the rack 102;

[0055] The detection module 4 is slidably mounted on the guide seat 1 via the first guide rail 101 and the rack 102. The detection module 4 includes a base plate 404, a bracket 401 and a support frame 403 mounted on the base plate 404, a detection head 405 mounted on the bracket 401, and a gear 406 and a slider mounted on the bottom end of the base plate 404. A fourth motor 402 is also mounted on the base plate 404. The output end of the fourth motor 402 drives the gear 406, and the gear 406 meshes with the rack 102 for transmission.

[0056] The unloading rack 2 is located on one side of the guide seat 1;

[0057] The intermediate support frame 3 and the side support frame 6 are located on the side of the guide seat 1 away from the unloading frame 2; the intermediate support frame 3 corresponds to the middle of the guide seat 1, and the side support frame 6 is symmetrically distributed on both sides of the intermediate support frame 3.

[0058] The lifting frame 5 is located between the intermediate support frame 3 and the side support frame 6;

[0059] The intermediate support frame 3 and the side support frame 6 can move toward the guide seat 1 to transport the steel pipe to the inspection station. The inspection module 4 can slide along the guide seat 1 to inspect the steel pipe. After the inspection is completed, the lifting frame 5 can lift the steel pipe to realize the unloading through the unloading frame 2.

[0060] Example 2

[0061] To improve the stability and safety of the material feeding process, for example, such as Figures 1 to 8As shown, the present invention also includes: the unloading rack 2 includes a first column 202, a support arm 204 rotatably mounted on the top of the first column 202 via a rotating shaft, and a spring torque device 201 mounted on both ends of the rotating shaft. The spring torque device 201 is provided with a spiral spring. The spiral spring has good elasticity and energy storage characteristics. When the support arm 204 rotates, the spiral spring can generate corresponding elastic force according to the rotation direction and angle of the support arm 204, providing stable elastic support and restoring force for the support arm 204. Compared to ordinary springs, coil springs can provide greater elastic force in a smaller space, and the elastic force changes relatively smoothly. This makes the rotation of the support arm 204 more stable during the downward movement of the steel pipe, resulting in better cushioning and further improving the stability and safety of the unloading process. A support plate 203 is provided on the lower surface of the support arm 204, and the support arm 204 is arranged at an angle. The support plate 203 is located at the angle between the support arm 204 and the first column 202. When the steel pipe is lifted by the lifting frame 5 to the unloading frame 2, due to the inclined arrangement of the support arm 204, the steel pipe will slide down along the support arm 204 under the action of gravity. The spring torque device 201 provides elastic support and restoring force to the support arm 204, allowing the support arm 204 to have a certain degree of cushioning during the downward movement of the steel pipe, preventing the steel pipe from sliding too fast and causing violent collisions. The support plate 203 is located at the angle between the support arm 204 and the first column 202. It can limit the rotation range of the support arm 204, prevent it from rotating too much and causing the steel pipe to slip and get out of control, ensure that the steel pipe can slide down the support arm 204 smoothly and orderly, achieve safe and reliable material feeding, and reduce the risk of damage to the steel pipe during the material feeding process.

[0062] Example 3

[0063] To achieve precise and stable lifting of the steel pipe, for example, such as... Figures 1 to 8 As shown, this utility model also includes: a lifting frame 5 comprising a second column 505, a first cylinder 504 vertically mounted on the second column 505, a limiting block 503 mounted on one side of the second column 505, a guide rod 502 slidably mounted within the limiting block 503, and a V-shaped bracket 501 mounted at the output end of the first cylinder 504; the V-shaped bracket 501 is connected to the guide rod 502, and its movement direction is limited by the cooperation of the guide rod 502 and the limiting block 503. The first cylinder 504 serves as a power source, providing stable and sufficient power to raise or lower the V-shaped bracket. The V-shaped bracket is connected to the guide rod 502, and the guide rod 502 slides within the limiting block 503. This design restricts the movement direction of the V-shaped bracket, allowing it to move only in a straight line in the vertical direction, ensuring the accuracy and stability of the lifting action. When lifting steel pipes, the steel pipes can be accurately lifted to the designated position, facilitating subsequent unloading operations and improving the working efficiency and reliability of the entire testing device.

[0064] Example 4

[0065] To enhance the adaptability of the intermediate support frame to different steel pipes and improve the accuracy of conveying, for example, such as Figures 1 to 8 As shown, this utility model also includes:

[0066] The intermediate support frame 3 includes a base 306, a second guide rail 303 mounted on the base 306, a first frame 302 slidably mounted on the base 306 via the second guide rail 303, a first support wheel frame 301 mounted on the first frame 302, a first motor 304 mounted on one side of the base 306, and a lead screw 305 driven by the first motor 304 and threadedly engaged with the first frame 302. The first motor 304 drives the lead screw 305 to rotate, and the threaded engagement between the lead screw 305 and the first frame 302 allows the first frame 302 to slide smoothly along the second guide rail 303 on the base 306. This transmission method enables precise position control, flexibly adjusting the position of the first frame 302 according to steel pipes of different lengths and specifications, thereby accurately conveying the steel pipes to the inspection station for precise positioning. This improves the adaptability of the intermediate support frame 3 to different steel pipes and the accuracy of conveying them, providing a good foundation for subsequent inspection work.

[0067] Example 5

[0068] To enable the side support frame and the intermediate support frame to work together and improve the applicability of the testing device to various types of steel pipes, for example, such as Figures 1 to 8 As shown, this utility model also includes:

[0069] The side support frame 6 includes a base 306, a third guide rail 608 mounted on the base 306, a second frame 606 slidably mounted on the base 306 via the third guide rail 608, a second support wheel frame 601 mounted on the second frame 606, a third motor 607 mounted on one side of the base 306, and a lead screw 305 driven by the third motor 607 and threadedly engaged with the second frame 606. Similar to the intermediate support frame 3, the side support frame 6 rotates the lead screw 305 driven by the third motor 607, causing the second frame 606 to slide along the third guide rail 608 on the base 306. This design allows the side support frame 6 to work collaboratively with the intermediate support frame 3, precisely adjusting the position of the second frame 606 according to the specifications and length of the steel pipe, and working with the intermediate support frame 3 to stably support the steel pipe at the inspection station. Simultaneously, this structure offers high flexibility and versatility, adapting to the inspection needs of various types of steel pipes and improving the overall applicability of the inspection device.

[0070] Example 6

[0071] To achieve multi-angle inspection of steel pipes and improve the accuracy and reliability of inspection results, for example, such as Figures 1 to 8 As shown, this utility model also includes:

[0072] A second cylinder 604 is also installed on the second frame 606 of the side support frame 6. A slide plate 603 is installed at the output end of the second cylinder 604. A top cone 602 and a second motor 605 that drives the top cone 602 to rotate are installed on the slide plate 603. When multi-angle inspection of the steel pipe is required, the output end of the second cylinder 604 extends, pushing the slide plate 603 to move along the second frame 606, so that the top cone 602 approaches the end of the steel pipe and presses against the steel pipe, achieving a stable clamping of the steel pipe. Subsequently, the second motor 605 drives the top cone 602 to rotate, and the top cone 602 drives the clamped steel pipe to rotate around its own axis. This design allows the inspection head 405 to perform inspections in different states, whether the steel pipe is stationary or rotating, without the need for manual rotation of the steel pipe. This not only improves inspection efficiency but also allows for comprehensive inspection of the steel pipe from multiple angles, further ensuring the accuracy and reliability of the inspection results.

[0073] Example 7

[0074] To optimize the detection module structure and improve detection accuracy and maintainability, for example, such as Figures 1 to 8 As shown, this utility model also includes:

[0075] The fourth motor 402 of the detection module 4 is located on the base plate 404 and on one side of the support frame 403. This layout makes full use of the internal space of the detection module 4, resulting in a more compact structure. Simultaneously, this rational placement helps reduce the impact of vibrations generated during motor operation on other components, ensuring the stability and accuracy of the detection module 4 during sliding. Furthermore, this layout facilitates the installation, maintenance, and repair of the fourth motor 402, improving the maintainability of the equipment.

[0076] Working principle:

[0077] The output ends of the second cylinders 604 of the side support frames 6 at both ends extend out, pushing the slide plate 603 to move along the second frame 606, so that the top cone 602 on the slide plate 603 approaches the end of the steel pipe and presses against the steel pipe, thus achieving a stable clamping of the steel pipe. Subsequently, the third motor 607 drives the lead screw 305 to rotate. Since the lead screw 305 is threadedly engaged with the second frame 606, and the top cone 602 is mounted on the second frame 606 (through the connecting structure such as the slide plate 603), the top cone 602 is driven to rotate, and the top cone 602 then drives the clamped steel pipe to rotate, so that the detection head 405 can detect the condition of different parts of the steel pipe.

[0078] The intermediate support frame 3 and the side support frame 6 work together to transport the steel pipe to the inspection station. The first motor 304 on the intermediate support frame 3 drives the lead screw 305 to rotate, and the lead screw 305 engages with the first frame 302 via a threaded transmission, causing the first frame 302 to slide along the second guide rail 303. The third motor 607 on the side support frame 6 drives the lead screw 305 to rotate, and the lead screw 305 engages with the second frame 606 via a threaded transmission, causing the second frame 606 to slide along the third guide rail 608. By moving the intermediate support frame 3 and the side support frame 6 towards the guide seat 1, the steel pipe is stably placed on the first support wheel frame 301 of the intermediate support frame 3 and the second support wheel frame 601 of the side support frame 6.

[0079] The detection module 4 begins operation, and the output of the fourth motor 402 drives the gear 406 to rotate. Because the gear 406 meshes with the rack 102 on the guide seat 1, the detection module 4, through the slider, engages with the first guide rail 101 on the guide seat 1, allowing the detection module 4 to slide along the guide seat 1. The detection head 405 on the detection module 4 performs a comprehensive inspection of the steel pipe (which may be stationary or rotating) located at the inspection station as the detection module 4 slides.

[0080] After the steel pipe inspection is completed, the lifting frame 5 begins operation. The output end of the first cylinder 504 extends upward, pushing the V-shaped bracket 501 upward. The V-shaped bracket 501 is connected to the guide rod 502, and its direction of movement is limited by the guide rod 502 and the limiting block 503 to ensure that the V-shaped bracket 501 rises smoothly. The rising V-shaped bracket 501 lifts the steel pipe on the inspection station.

[0081] After the steel pipe lifted by the lifting frame 5 reaches the appropriate position, the support arm 204 of the unloading frame 2 is inclined and is rotatably mounted on the top of the first column 202 via a pivot. Spring torquers 201 with coil springs inside are installed at both ends of the pivot. Under the action of gravity, the steel pipe slides down the inclined surface of the support arm 204. Simultaneously, the support arm 204 rotates around the pivot at a certain angle. The support plate 203 is located at the angle between the support arm 204 and the first column 202, preventing the support arm 204 from rotating too much and ensuring the steel pipe can smoothly pass through the unloading frame 2 for unloading.

[0082] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automatic detection device for large-diameter steel pipes, characterized in that, include: A guide seat (1) is provided with a first guide rail (101) and a rack (102), wherein the first guide rail (101) is symmetrically distributed on both sides of the rack (102); The detection module (4) is slidably mounted on the guide seat (1) via the first guide rail (101) and rack (102); the detection module (4) includes a base plate (404), a bracket (401) and a support frame (403) mounted on the base plate (404), a detection head (405) mounted on the bracket (401), and a gear (406) and a slider mounted on the bottom end of the base plate (404); a fourth motor (402) is also mounted on the base plate (404), the output end of the fourth motor (402) drives the gear (406), and the gear (406) meshes with the rack (102) for transmission; The unloading rack (2) is located on one side of the guide seat (1); The intermediate support frame (3) and the side support frame (6) are disposed on the side of the guide seat (1) away from the unloading frame (2); the intermediate support frame (3) corresponds to the middle of the guide seat (1), and the side support frame (6) is symmetrically distributed on both sides of the intermediate support frame (3); A lifting frame (5) is disposed between the intermediate support frame (3) and the side support frame (6); The intermediate support frame (3) and the side support frame (6) can move toward the guide seat (1) to transport the steel pipe to the inspection station. The inspection module (4) can slide along the guide seat (1) to inspect the steel pipe. After the inspection is completed, the lifting frame (5) can lift the steel pipe to realize the unloading through the unloading frame (2).

2. The automatic detection device for large-diameter steel pipes according to claim 1, characterized by: The unloading rack (2) includes a first column (202), a support arm (204) rotatably mounted on the top of the first column (202) via a rotating shaft, and spring torquers (201) mounted on both ends of the rotating shaft; a support plate (203) is provided on the lower surface of the support arm (204), and the support arm (204) is arranged at an angle, with the support plate (203) located at the angle between the support arm (204) and the first column (202).

3. The automatic detection device for large-diameter steel pipes according to claim 1, characterized by: The lifting frame (5) includes a second column (505), a first cylinder (504) vertically mounted on the second column (505), a limiting block (503) mounted on one side of the second column (505), a guide rod (502) slidably mounted in the limiting block (503), and a V-shaped bracket (501) mounted on the output end of the first cylinder (504); the V-shaped bracket (501) is connected to the guide rod (502), and its movement direction is limited by the cooperation of the guide rod (502) and the limiting block (503).

4. The automatic detection device for large-diameter steel pipes according to claim 1, characterized by: The intermediate support frame (3) includes a base (306), a second guide rail (303) disposed on the base (306), a first frame (302) slidably mounted on the base (306) via the second guide rail (303), a first support wheel frame (301) mounted on the first frame (302), a first motor (304) mounted on one side of the base (306), and a lead screw (305) driven by the first motor (304) and threadedly engaged with the first frame (302).

5. The automatic detection device for large-diameter steel pipes according to claim 1, characterized by: The side support frame (6) includes a base (306), a third guide rail (608) disposed on the base (306), a second frame (606) slidably mounted on the base (306) via the third guide rail (608), a second support wheel frame (601) mounted on the second frame (606), a third motor (607) mounted on one side of the base (306), and a lead screw (305) driven by the third motor (607) and threadedly engaged with the second frame (606).

6. The automatic detection device for large-diameter steel pipes according to claim 1, characterized by: A second cylinder (604) is also installed on the second frame (606) of the side support frame (6). A slide plate (603) is installed on the output end of the second cylinder (604). A top cone (602) and a second motor (605) for driving the top cone (602) to rotate are installed on the slide plate (603).

7. The automatic detection device for large-diameter steel pipes according to claim 2, characterized by: The spring torquer (201) is equipped with a spiral spring.

8. The automatic detection device for large-diameter steel pipes according to claim 1, characterized by: The fourth motor (402) of the detection module (4) is located on the base plate (404) and on one side of the support frame (403).

Images