A pipe testing apparatus

Abstract

The application discloses a pipe detection equipment, relates to the field of industrial automation detection, and is used for realizing rapid centering of a pipe and improving the size detection efficiency of the pipe. The pipe detection equipment comprises a portal frame, a detection frame, a fixed pulley, a counterweight, a rope, a driving assembly, a plurality of detection assemblies and a plurality of conveying assemblies. The portal frame has a space for the pipe to pass through along the axial direction of the portal frame. The detection frame is movably arranged on the portal frame. The fixed pulley is arranged on the portal frame. The rope is wound around the fixed pulley, and two ends of the rope are connected with the counterweight and the detection frame respectively. The counterweight and the rope are used for balancing the gravity of the detection frame. The driving assembly is drivingly connected with the detection frame. The plurality of detection assemblies are distributed on the detection frame in the circumferential direction of the detection frame. The detection assembly comprises a three-dimensional profile measuring instrument used for measuring the size of the pipe and is movably connected with the detection frame in the radial direction of the detection frame. The plurality of conveying assemblies are arranged on the opposite sides of the portal frame respectively and are used for supporting and conveying the pipe.

Description

Technical Field

[0001] This invention relates to the field of industrial automation testing, and more particularly to a pipe testing device. Background Technology

[0002] In fields such as petroleum, chemical, nuclear power, aerospace, and municipal engineering, pipes serve as core components for fluid transportation and structural support; their quality directly impacts production safety and engineering reliability. During pipe production, thick-walled tubes typically undergo multiple rolling passes to gradually reduce wall thickness, approaching the required dimensions and geometric tolerances of the finished product. During these multiple rolling passes, the external dimensions of the pipe at each exit pass must be inspected to monitor its forming status and provide a reference for subsequent process adjustments. Furthermore, after rolling, the pipe's dimensional parameters must be inspected to determine if they meet the preset technical requirements for the finished product.

[0003] To achieve accurate detection of pipe dimensions, the central axis of the pipe must be perfectly aligned with the central axis of the detection device during testing. Therefore, in actual production, the ability to quickly and accurately center multiple pipes of different diameters has a crucial impact on the efficiency of dimensional detection and pipe production.

[0004] Currently, pipe size parameter inspection methods typically employ laser measurement, machine vision, or contour scanning. During the centering process, the pipe being inspected is usually moved or constrained to adapt to a fixed inspection device. This centering method requires multiple adjustments to the device used to move or constrain the pipe based on its diameter to drive the pipe and complete the centering. However, this centering method is time-consuming and labor-intensive, reducing the efficiency of pipe size inspection and consequently reducing pipe production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a pipe inspection device for quickly centering pipes, thereby improving the efficiency of pipe size inspection and pipe production.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A pipe testing device, comprising: A gantry frame having space for tubing to pass through along its own axial direction; A detection frame, which is movably mounted on the gantry frame, is used to surround the circumferential periphery of the pipe. A fixed pulley is installed on the gantry frame; A counterweight and a rope, the rope being wound around the fixed pulley, with both ends of the rope connected to the counterweight and the detection frame respectively, the counterweight and the rope being used to balance the weight of the detection frame; A driving component, which is connected to the detection frame and is used to drive the detection frame to move up and down; Multiple detection components are distributed circumferentially on the detection frame. Each detection component includes a three-dimensional profile measuring instrument for measuring the pipe size. The three-dimensional profile measuring instrument moves and cooperates with the detection frame radially. Multiple conveying components are respectively disposed on opposite sides of the gantry frame along the conveying direction of the pipe, for supporting and conveying the pipe.

[0007] Optionally, in the pipe testing equipment described above, the weight of the counterweight is equal to the sum of the weights of the testing frame and the testing components.

[0008] Optionally, in the above-mentioned pipe testing equipment, the drive assembly includes: At least two threaded rods are provided, which are vertically mounted on the gantry frame and are threadedly engaged with the detection frame. The first motor is fixedly mounted on the gantry frame and driven by the threaded rod, and is used to drive the threaded rod to rotate so as to move the detection frame up and down.

[0009] Optionally, in the above-mentioned pipe testing equipment, the testing components include: A first lead screw and slider mechanism is disposed on the detection frame. The first lead screw and slider mechanism includes a first lead screw and a first slider that can move along the first lead screw. The moving direction of the first slider is parallel to the radial direction of the detection frame. The first duckbill support includes a first fixed frame and a first movable frame. The first fixed frame is fixed to the first slider, and the first movable frame is rotatably mounted on the first fixed frame via a first rotating shaft. The three-dimensional contour measuring instrument is mounted on the first movable frame, and the first rotating shaft is parallel to the axial direction of the detection frame. The second motor is connected to the first lead screw drive.

[0010] Optionally, in the above-mentioned pipe testing equipment, the testing components further include: The second lead screw and slider mechanism is disposed on the detection frame. The second lead screw and slider mechanism includes a second lead screw and a second slider that can move along the second lead screw. The movement direction of the second slider is parallel to the radial direction of the detection frame. The second duckbill support includes a second fixed frame and a second movable frame. The second fixed frame is disposed on the second slider, and the second movable frame is rotatably disposed on the second fixed frame via a second rotating shaft, the second rotating shaft being parallel to the axial direction of the detection frame. An image acquisition device is disposed on the second movable frame and is used to acquire images of the surface of the pipe. The third motor is connected to the second lead screw drive.

[0011] Optionally, in the pipe inspection equipment described above, the inspection component further includes an illumination source, which is disposed on the second movable frame and is used to provide illumination for the image acquisition device.

[0012] Optionally, in the above-mentioned pipe testing equipment, the testing component further includes a liquid cooling component, which includes: The liquid cooling plate is provided on both the first movable frame and the second movable frame, and the three-dimensional contour measuring instrument and the image acquisition device are both provided on the liquid cooling plate; A liquid-passing pipe, which runs through the liquid-cooling plate, is used to introduce coolant to cool the three-dimensional contour measuring instrument and the image acquisition device.

[0013] Optionally, in the above-mentioned pipe testing equipment, the testing component further includes an air-cooling component, which is disposed on the testing frame and is used to dissipate heat from the three-dimensional contour measuring instrument and the image acquisition device by blowing air.

[0014] Optionally, in the above-mentioned pipe testing equipment, the conveying component includes: A support frame is disposed on one side of the gantry frame; V-shaped rollers are rotatably mounted on the bracket, with the axis of the V-shaped rollers perpendicular to the axis of the pipe, for supporting and radially limiting the pipe. A fourth motor is connected to the V-shaped roller and is used to drive the V-shaped roller to rotate along its own axis to transport the pipe.

[0015] Optionally, in the above-mentioned pipe testing equipment, the conveying assembly further includes: A horizontal guide rail is mounted on the bracket, and the guiding direction of the horizontal guide rail is the same as the axial direction of the V-shaped roller. At least two limiting rods are slidably disposed on the horizontal guide rail, and the at least two limiting rods are arranged opposite each other along the axial direction of the V-shaped roller to limit the horizontal radial displacement of the pipe.

[0016] Compared with the prior art, the pipe testing equipment provided in this application uses a gantry frame as an integral support frame, and the gantry frame has space for the pipe to pass through along its own axial direction; the testing frame is vertically movably connected inside the gantry frame and surrounds the circumferential periphery of the pipe; a fixed pulley is set in the gantry frame; a rope is wound around the fixed pulley, and the two ends of the rope are respectively connected to a counterweight and the testing frame, the counterweight and the rope are used to balance the gravity of the testing frame; a drive assembly is connected to the testing frame and is used to drive the testing frame to move up and down; multiple testing components are distributed along the circumference of the testing frame, and each testing component includes a three-dimensional profile measuring instrument that can move radially along the testing frame for measuring the pipe dimensions; multiple conveying components are respectively set on both sides of the gantry frame for supporting and driving the axial feed of the pipe.

[0017] During operation: The pipe is placed on the conveying assembly, which supports and transports it into the gantry frame. During centering, the drive assembly moves the inspection frame up and down along the gantry frame. A rope passes through a fixed pulley and connects to the inspection frame, causing an upward pull from a counterweight. This pull counteracts part or all of the frame's weight, helping it move smoothly and easily. The drive assembly can then use a small amount of driving force to move the inspection frame quickly and easily, aligning its central axis with the central axis of pipes of different diameters. Then, the 3D profile measuring instrument on the inspection frame moves radially along the frame, adjusting it to a position matching the pipe diameter. This allows the multiple 3D profile measuring instruments distributed around the circumference of the frame to cover the entire circumference of the pipe, achieving full-circumference dimensional inspection. After centering, the pipe is continuously transported by multiple conveying assemblies located on both sides of the gantry frame, completing dimensional inspection of various areas along the pipe's length. This configuration allows for quick and accurate centering of pipes of different diameters without moving the pipes themselves; simply adjusting the position of the inspection frame up and down is sufficient. Furthermore, the counterweights offset some or all of the frame's weight, requiring only a small driving force to move the frame easily and quickly. The position of the 3D contour measuring instrument can be adjusted to accommodate pipes of different diameters, enabling full-circumference dimensional inspection. This effectively improves the efficiency of pipe dimensional inspection and production, while ensuring full-range inspection in both the circumferential and length directions. It solves the problems of time-consuming, labor-intensive, and inefficient traditional centering methods for inspecting pipes of different diameters. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this invention, illustrate exemplary embodiments of the invention and are used to explain the invention, but do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall structure of a pipe testing device proposed in an embodiment of the present invention; Figure 2 This is a schematic front view of a pipe testing device proposed in an embodiment of the present invention; Figure 3 This is a schematic diagram of the overall structure of the detection component of a pipe testing device proposed in an embodiment of the present invention; Figure 4 This is a schematic diagram of the overall structure of the conveying component of a pipe testing device proposed in an embodiment of the present invention; Figure 5 This is a schematic diagram of the overall structure of the drive assembly of a pipe testing device proposed in an embodiment of the present invention.

[0019] Reference numerals: 100 is a gantry frame, 110 is a fixed pulley, 120 is a vertical guide rail, 200 is a detection frame, 210 is a guide rail slider, 310 is a rope, 320 is a counterweight, 400 is a drive assembly, 410 is a threaded rod, 420 is a first motor, 500 is a detection assembly, 520 is a first lead screw and slider mechanism, 521 is a first lead screw, 522 is a first slider, 530 is a first duckbill bracket, 531 is a first fixed frame, 532 is a first movable frame, 540 is a second motor, 550 is a three-phase motor. 560 is a contour measuring instrument, 561 is a second lead screw and slider mechanism, 562 is a second lead screw, 570 is a second duckbill bracket, 571 is a second fixed frame, 572 is a second movable frame, 580 is an image acquisition device, 590 is a third motor, 5100 is an illumination source, 5200 is a liquid cooling component, 5300 is an air cooling component, 600 is a conveying component, 610 is a bracket, 620 is a V-shaped roller, 630 is a fourth motor, 640 is a horizontal guide rail, 650 is a limit rod, and 700 is a pipe. Detailed Implementation

[0020] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0021] Please see Figure 1 , Figure 2 and Figure 3The pipe testing equipment provided in this embodiment of the invention includes a gantry frame 100, a testing frame 200, a fixed pulley 110, a counterweight 320, a rope 310, a drive assembly 400, multiple testing components 500, and multiple conveying components 600. The gantry frame 100 has space for the pipe 700 to pass through along its axial direction. The testing frame 200 is vertically movable within the gantry frame 100 and surrounds the circumferential periphery of the pipe 700. The fixed pulley 110 is disposed within the gantry frame 100. The rope 310 passes around the fixed pulley 110, and both ends of the rope 310 are connected to the counterweight 320 and the testing frame 200, respectively. 0. The counterweight 320 and rope 310 are used to balance the gravity of the detection frame 200; the drive assembly 400 is driven to the detection frame 200 to drive the detection frame 200 to move up and down; multiple detection assemblies 500 are distributed on the detection frame 200 along the circumference of the detection frame 200, and the detection assembly 500 includes a three-dimensional profile measuring instrument 550 for measuring the size of the pipe 700. The three-dimensional profile measuring instrument 550 moves and cooperates with the detection frame 200 along the radial direction of the detection frame 200; multiple conveying assemblies 600 are respectively set on opposite sides of the gantry frame 100 along the conveying direction of the pipe 700 to support and convey the pipe 700.

[0022] For specific implementation details, please refer to: Figure 1 , Figure 2 and Figure 3The pipe 700 is placed on the conveying assembly 600, which supports and conveys the pipe 700 into the gantry frame 100. During centering, the drive assembly 400 drives the detection frame 200 to move up and down along the gantry frame 100. The rope 310 is connected to the detection frame 200 via the fixed pulley 110, so that the detection frame 200 is subjected to an upward pulling force provided by a counterweight 320. This pulling force can offset part or all of the weight of the detection frame 200, assisting the detection frame 200 to move smoothly and easily. The drive assembly 400 can then conveniently and quickly drive the detection frame 200 to move with a small driving force, so that the detection frame 200... The central axis of the instrument is aligned with the central axis of the pipes 700 of different diameters. Then, the three-dimensional profile measuring instrument 550 on the detection frame 200 is driven to move radially along the detection frame 200, and the three-dimensional profile measuring instrument 550 is adjusted to a detection position that matches the diameter of the pipe 700, so that the detection range of the multiple three-dimensional profile measuring instruments 550 distributed around the circumference of the detection frame 200 can cover the entire circumference of the pipe 700, thereby realizing the full circumferential dimension detection of the pipe 700. After centering, the pipe 700 is continuously conveyed by multiple conveying components 600 located on both sides of the gantry frame 100, thereby completing the dimension detection of each area along the length of the pipe 700. With this configuration, when performing dimensional inspection on pipes 700 of different diameters, there is no need to move the pipe 700 itself; only the position of the inspection frame 200 needs to be adjusted up and down to quickly and accurately center it. Simultaneously, since the counterweight 320 can offset part or all of the weight of the inspection frame 200, the drive component 400 only needs to provide a small driving force to easily and quickly move the inspection frame 200. Furthermore, by adjusting the position of the three-dimensional profile measuring instrument 550, it can be adapted to pipes 700 of different diameters, allowing for dimensional inspection of the entire circumference of the pipe 700. This effectively improves the efficiency of pipe 700 dimensional inspection and production efficiency, while ensuring full-range inspection of the pipe 700 in both circumferential and length directions. It solves the problems of time-consuming, labor-intensive, and inefficient inspection caused by traditional centering methods when inspecting pipes 700 of different diameters, thereby improving the production efficiency of the pipe 700.

[0023] As one possible implementation, please refer to Figure 2The weight of counterweight 320 is equal to the sum of the weights of detection frame 200 and detection component 500. Under the action of the rope 310 and the fixed pulley 110, the counterweight 320 provides an upward pulling force to the detection frame 200. When the weight of the counterweight 320 is equal to the sum of the weights of the detection frame 200 and the detection component 500, the magnitude of this pulling force is exactly equal to the total weight of the detection frame 200 and the detection component 500, and the direction is opposite to the direction of the weight of the detection frame 200 and the detection component 500 (vertically downward). Therefore, the weight of the detection frame 200 and the pulling force on the detection frame 200 are in mechanical equilibrium. That is, the effective weight of the detection frame 200 in the vertical direction is zero. The drive component 400 only needs to overcome its own small amount of mechanical friction resistance to drive the detection frame 200 to move. On the one hand, this means that the drive component 400 does not need to overcome a large weight of the detection frame 200 when driving the detection frame 200 to move, which can achieve rapid and stable lifting and lowering, shortening the adjustment and centering time. On the other hand, it can reduce the energy consumption of the drive component 400.

[0024] As one possible implementation, such as Figure 2 and Figure 5 As shown, the drive assembly 400 includes a first motor 420 and at least two threaded rods 410; wherein, the threaded rods 410 are vertically arranged on the gantry frame 100 and are threadedly engaged with the detection frame 200; the first motor 420 is fixedly arranged on the gantry frame 100 and is drivenly connected to the threaded rods 410, and is used to drive the threaded rods 410 to rotate so as to drive the detection frame 200 to move up and down.

[0025] Specifically, because the detection frame 200 simultaneously engages with at least two threaded rods 410, it cannot rotate in its circumferential direction. Under the action of the threaded engagement between the detection frame 200 and the threaded rods 410, the first motor 420 is activated, driving the threaded rods 410 to rotate. This rotation of the threaded rods 410 drives the detection frame 200 to move vertically up and down, achieving alignment and centering of the detection frame 200's central axis with the central axis of the pipe 700. It can be understood that for pipes with larger diameters, whose axes are higher, the detection frame 200 moves upwards to align its center with the pipe's axis; conversely, for pipes with smaller diameters, whose axes are lower, the detection frame 200 moves downwards to align its center with the pipe's axis.

[0026] Further, please refer to Figure 2A vertical guide rail 120 is fixedly mounted on the gantry frame 100, and a guide rail slider 210 is fixedly mounted on the detection frame 200. The vertical guide rail 120 is fixedly mounted on the gantry frame 100, and the guide rail slider 210 is guided and engaged with the vertical guide rail 120. During operation, when the threaded rod 410 rotates to drive the detection frame 200 to move up and down, the guide rail slider 210 slides along the vertical guide rail 120, providing guidance for the up and down movement of the detection frame 200. This makes the detection frame 200 more stable during its up and down movement, further preventing the detection frame 200 from shaking or rotating circumferentially. This helps to align the center of the detection frame 200 with the axis of the pipe 700, thereby ensuring the accuracy and reliability of subsequent dimensional inspection of the pipe 700. In some embodiments, two vertical guide rails 120 are provided and symmetrically distributed on opposite sides inside the gantry frame 100; similarly, guide rail sliders 210 are distributed on both sides of the detection frame 200, making the movement and cooperation between the detection frame 200 and the gantry frame 100 more stable.

[0027] As one possible implementation, such as Figure 2 and Figure 3 As shown, the detection assembly 500 includes a first lead screw and slider mechanism 520, a first duckbill support 530, and a second motor 540. The first lead screw and slider mechanism 520 is disposed on the detection frame 200 and includes a first lead screw 521 and a first slider 522 movable along the first lead screw 521. The movement direction of the first slider 522 is parallel to the radial direction of the detection frame 200. The first duckbill support 530 includes a first fixed frame 531 and a first movable frame 532. The first fixed frame 531 is fixed to the first slider 522, and the first movable frame 532 is rotatably disposed on the first fixed frame 531 via a first rotating shaft. A three-dimensional contour measuring instrument 550 is disposed on the first movable frame 532, and the first rotating shaft is parallel to the axial direction of the detection frame 200. The second motor 540 is drivenly connected to the first lead screw 521.

[0028] During operation, the second motor 540 drives the first lead screw 521 to rotate. The first lead screw 521 drives the first slider 522 to move radially along the detection frame 200, adjusting the three-dimensional profile measuring instrument 550 to a detection position matching the diameter of the pipe 700. Simultaneously, the pitch angle of the three-dimensional profile measuring instrument 550 can be adjusted by rotating the first movable frame 532, ensuring that the measurement range of multiple three-dimensional profile measuring instruments 550 always covers the entire circumferential range of pipes 700 with different diameters. By setting up the first lead screw-slider mechanism 520, the first duckbill bracket 530, and the second motor 540, the radial position adjustment of the three-dimensional profile measuring instrument 550 along the detection frame 200 and the flexible adjustment of the detection angle can be achieved. This allows the three-dimensional profile measuring instrument 550 to adapt to the detection needs of pipes 700 with different diameters, ensuring effective dimensional detection of the entire circumference of the pipe 700 and effectively improving the applicability and accuracy of the detection.

[0029] Understandably, when the diameter of the pipe 700 is large, the first slider 522 causes the three-dimensional profile measuring instrument 550 mounted on the first duckbill bracket 530 to move away from the pipe 700 along the radial direction of the detection frame 200, so that the measurement range of the multiple three-dimensional profile measuring instruments 550 covers the entire circumference of the pipe 700; when the diameter of the pipe 700 is small, the first slider 522 causes the three-dimensional profile measuring instrument 550 to move closer to the pipe 700 along the radial direction of the detection frame 200.

[0030] As one possible implementation, such as Figure 2 and Figure 3 As shown, the detection assembly 500 also includes a second lead screw and slider mechanism 560, a second duckbill support 570, an image acquisition unit 580, and a third motor 590. The second lead screw and slider mechanism 560 is disposed on the detection frame 200 and includes a second lead screw 561 and a second slider 562 movable along the second lead screw 561. The movement direction of the second slider 562 is parallel to the radial direction of the detection frame 200. The second duckbill support 570 includes a second fixed frame 571 and a second movable frame 572. The second fixed frame 571 is disposed on the second slider 562, and the second movable frame 572 is rotatably disposed on the second fixed frame 571 via a second rotating shaft parallel to the axial direction of the detection frame 200. The image acquisition unit 580 is disposed on the second movable frame 572 and is used to acquire images of the surface of the pipe 700. The third motor 590 is drivenly connected to the second lead screw 561.

[0031] During operation, the third motor 590 drives the second lead screw 561 to rotate. The second lead screw 561 drives the second slider 562 to move radially along the detection frame 200, adjusting the image acquisition device 580 to a position matching the diameter of the pipe 700. Simultaneously, the pitch angle of the image acquisition device 580 can be adjusted by rotating the second movable frame 572, enabling the image acquisition device 580 to acquire images of the entire circumferential range of the pipe 700 surface. Based on the acquired images, surface defects (scratches, dents, protrusions, stains, or abnormal surface textures) of the pipe 700 can be detected. By integrating the second lead screw and slider mechanism 560, the second duckbill bracket 570, the image acquisition device 580, and the third motor 590 onto the detection frame 200, along with the three-dimensional profile measuring instrument 550 used for detecting the dimensions of the pipe 700, space utilization is increased, the structure is compact, and it can simultaneously perform surface image acquisition of the pipe 700 for defect detection while simultaneously detecting the pipe's dimensions.

[0032] As one possible implementation, such as Figure 2 and Figure 3 As shown, the detection component 500 also includes an illumination source 5100, which is mounted on the second movable frame 572 and is used to provide illumination for the image acquisition unit 580.

[0033] Specifically, the lighting source 5100 is mounted on the second movable frame 572 and can adjust its angle with the second movable frame 572, thereby providing stable illumination for the acquisition area of ​​the image acquisition device 580 and ensuring that the image acquisition device 580 can stably acquire images of the surface of the pipe 700.

[0034] In some embodiments, the image acquisition device 580 is a line scan camera, which can achieve high-definition surface imaging; the illumination source 5100 uses a blue light source with a wavelength of 405nm. During operation, when inspecting the pipe 700 at high temperatures (800℃-1000℃), the ambient light cannot meet the clear imaging requirements of the line scan camera, making it difficult for the line scan camera to take normal pictures without additional light source supplementation. Furthermore, the high-temperature pipe 700 emits a large amount of infrared light. Therefore, selecting 405nm blue light can effectively avoid the infrared band, reduce the interference of high-temperature infrared radiation on imaging, and provide stable and reliable illumination conditions for the line scan camera under high-temperature conditions, ensuring that image information of the pipe 700 surface can be acquired.

[0035] As one possible implementation, such as Figure 2 and Figure 3As shown, the detection component 500 also includes a liquid cooling component 5200, which includes a liquid cooling plate and a liquid passage pipe. The first movable frame 532 and the second movable frame 572 are both equipped with liquid cooling plates, and the three-dimensional contour measuring instrument 550 and the image acquisition device 580 are both mounted on the liquid cooling plates. The liquid passage pipe passes through the liquid cooling plate and is used to introduce coolant to cool the three-dimensional contour measuring instrument 550 and the image acquisition device 580.

[0036] During operation, when performing dimensional inspection on the pipe 700 under high temperature conditions, the high temperature environment will cause the temperature of the 3D profile measuring instrument 550 and the image acquisition device 580 to rise. Prolonged exposure to high temperatures can lead to unstable operation or even damage to the 3D profile measuring instrument 550 and the image acquisition device 580. Therefore, liquid cooling plates are installed on both the first movable frame 532 and the second movable frame 572. Coolant is continuously supplied to the liquid cooling plates through liquid pipes. The coolant flows inside the liquid cooling plates, absorbing the heat generated by the 3D profile measuring instrument 550 and the image acquisition device 580, thereby cooling them down. By installing liquid cooling plates on the first movable frame 532 and the second movable frame 572 and introducing coolant through the liquid pipe, the impact of high-temperature environment on the 3D contour measuring instrument 550 and image acquisition device 580 can be effectively reduced, ensuring that the 3D contour measuring instrument 550 and image acquisition device 580 can work stably and reliably under high-temperature conditions, avoiding equipment damage or decreased detection accuracy due to excessive temperature, extending the service life of the equipment, and ensuring the continuity and stability of the detection process of some high-temperature pipes 700; the liquid cooling component 5200 enables the pipe detection equipment to adapt to the detection of pipes 700 at high temperatures.

[0037] Furthermore, such as Figure 2 and Figure 3 As shown, the detection component 500 also includes a cooling component 5300, which is disposed on the detection frame 200 and is used to cool the three-dimensional contour measuring instrument 550 and the image acquisition device 580 by blowing air.

[0038] Understandably, the air-cooling component 5300 can be a fan, and one, two, or more fans can be set. When two or more fans are set, the arrangement of the multiple fans can be adjusted according to the heat resistance of the 3D contour measuring instrument 550 and the image acquisition unit 580, so that some fans are directed at the 3D contour measuring instrument 550 and others are directed at the image acquisition unit 580, thereby achieving targeted cooling. By setting fans on the detection frame 200 to continuously blow air onto the 3D contour measuring instrument 550 and the image acquisition unit 580, the circulation and exchange of hot air around the 3D contour measuring instrument 550 and the image acquisition unit 580 are accelerated, avoiding the impact of excessive temperature on detection accuracy.

[0039] Furthermore, the detection frame 200 adopts a pentagonal frame structure, which is arranged around the circumference of the pipe 700. The number of detection components 500 can be five, and the five detection components 500 are evenly distributed on the pentagonal frame. The pentagonal frame ensures that the detection components 500 are evenly arranged along the circumference of the pipe 700, guaranteeing that the detection range of the 3D contour measuring instrument 550 and the image acquisition device 580 can completely cover the entire outer circumference of the pipe 700, avoiding detection blind spots. The pentagonal frame structure has several advantages. First, it ensures structural strength while preventing excessive weight of the detection frame 200 (as the pentagonal frame is a polygonal truss structure, it reduces material usage and overall weight, thus improving the efficiency of centering the detection frame 200). This facilitates gravity balancing by the counterweight 320, making the movement of the detection frame 200 smoother and more stable. Second, the pentagonal frame provides suitable installation space for the detection components 500, maintaining appropriate spacing between them and preventing interference during radial movement. This improves the stability of the detection components 500 and makes the overall structure more compact, which is beneficial for adapting to the detection needs of pipes 700 with different diameters.

[0040] As one possible implementation, such as Figure 4 As shown, the conveying assembly 600 includes a support 610, a V-shaped roller 620, and a fourth motor 630; wherein, the support 610 is disposed on one side of the gantry frame 100; the V-shaped roller 620 is rotatably disposed on the support 610, and the axial direction of the V-shaped roller 620 is perpendicular to the axial direction of the pipe 700, for supporting and radially limiting the pipe 700; the fourth motor 630 is drivenly connected to the V-shaped roller 620, for driving the V-shaped roller 620 to rotate along its own axial direction to convey the pipe 700.

[0041] During operation, the pipe 700 is placed on the V-shaped roller 620. The V-shaped roller 620 supports the pipe 700 and provides radial limiting, ensuring a stable conveying state. The fourth motor 630 starts and drives the V-shaped roller 620 to rotate around its own axis. The rotation of the V-shaped roller 620 causes the pipe 700 to be conveyed along its own axis, allowing the pipe 700 to stably reach and pass through the detection area within the gantry frame 100. By setting up the bracket 610, V-shaped roller 620, and fourth motor 630 on one side of the gantry frame 100, the pipe 700 can be stably supported and reliably conveyed. At the same time, the radial limiting of the pipe 700 ensures the stability of the pipe 700's position during conveying, facilitating accurate detection of the pipe 700 by the detection equipment and effectively improving the efficiency of pipe 700 conveying and detection.

[0042] It is understandable that there are multiple conveying components 600, and similarly, there are multiple V-shaped rollers 620. The multiple V-shaped rollers 620 are arranged in parallel and spaced apart. When the pipe 700 is placed on the V-shaped rollers 620, the axial direction of the pipe 700 is parallel to the arrangement direction of the V-shaped rollers 620. Starting the fourth motor 630 to drive the V-shaped rollers 620 to rotate will drive the pipe 700 to move along its own axial direction.

[0043] Furthermore, such as Figure 4 As shown, the conveying assembly 600 also includes a horizontal guide rail 640 and at least two limiting rods 650; wherein, the horizontal guide rail 640 is disposed on the bracket 610, and the guiding direction of the horizontal guide rail 640 is the same as the axial direction of the V-shaped roller 620; the limiting rods 650 are slidably disposed on the horizontal guide rail 640, and at least two limiting rods 650 are disposed opposite to each other along the axial direction of the V-shaped roller 620 to limit the horizontal radial displacement of the pipe 700.

[0044] During operation, the pipe 700 is placed on the V-shaped roller 620, and the position of the limiting rods 650 on the horizontal guide rail 640 is adjusted according to the diameter of the pipe 700, so that at least two limiting rods 650 are in appropriate limiting positions. When the pipe 700 is conveyed on the V-shaped roller 620, the limiting rods 650, which are arranged axially opposite to the V-shaped roller 620, form a radial obstruction to the pipe 700, preventing the pipe 700 from radially shifting and rolling off the V-shaped roller 620 during conveying. By setting the horizontal guide rail 640 and at least two limiting rods 650 on the bracket 610, the pipe 700 can be radially limited during the conveying process, ensuring that the pipe 700 is always stably conveyed by the V-shaped roller 620, thus improving the stability and safety of the pipe 700 conveying.

[0045] In some embodiments, such as Figure 4 As shown, two horizontal guide rails 640 can be provided, with the two horizontal guide rails 640 located on opposite sides of the axial direction of the V-shaped roller 620, and two limiting rods 650 provided on one horizontal guide rail 640. By providing two horizontal guide rails 640 located on opposite sides of the axial direction of the V-shaped roller 620, and configuring two limiting rods 650 on each horizontal guide rail 640, a more stable multi-position limiting can be formed, improving the stability of the pipe 700 during the conveying process.

[0046] In the description of the above embodiments, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0047] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A pipe testing device, characterized in that, include: A gantry frame having space for tubing to pass through along its own axial direction; A detection frame, which is movably mounted on the gantry frame, is used to surround the circumferential periphery of the pipe. A fixed pulley is installed on the gantry frame; A counterweight and a rope, the rope being wound around the fixed pulley, with both ends of the rope connected to the counterweight and the detection frame respectively, the counterweight and the rope being used to balance the weight of the detection frame; A driving component, which is connected to the detection frame and is used to drive the detection frame to move up and down; Multiple detection components are distributed circumferentially on the detection frame. Each detection component includes a three-dimensional profile measuring instrument for measuring the pipe size. The three-dimensional profile measuring instrument moves and cooperates with the detection frame radially. Multiple conveying components are respectively disposed on opposite sides of the gantry frame along the conveying direction of the pipe, for supporting and conveying the pipe.

2. The pipe testing equipment according to claim 1, characterized in that, The weight of the counterweight is equal to the sum of the weights of the detection frame and the detection component.

3. The pipe testing equipment according to claim 1, characterized in that, The driving component includes: At least two threaded rods are provided, which are vertically mounted on the gantry frame and are threadedly engaged with the detection frame. The first motor is fixedly mounted on the gantry frame and driven by the threaded rod, and is used to drive the threaded rod to rotate so as to move the detection frame up and down.

4. The pipe testing equipment according to claim 1, characterized in that, The detection component includes: A first lead screw and slider mechanism is disposed on the detection frame. The first lead screw and slider mechanism includes a first lead screw and a first slider that can move along the first lead screw. The moving direction of the first slider is parallel to the radial direction of the detection frame. The first duckbill support includes a first fixed frame and a first movable frame. The first fixed frame is fixed to the first slider, and the first movable frame is rotatably mounted on the first fixed frame via a first rotating shaft. The three-dimensional contour measuring instrument is mounted on the first movable frame, and the first rotating shaft is parallel to the axial direction of the detection frame. The second motor is connected to the first lead screw drive.

5. The pipe testing equipment according to claim 4, characterized in that, The detection component also includes: The second lead screw and slider mechanism is disposed on the detection frame. The second lead screw and slider mechanism includes a second lead screw and a second slider that can move along the second lead screw. The movement direction of the second slider is parallel to the radial direction of the detection frame. The second duckbill support includes a second fixed frame and a second movable frame. The second fixed frame is disposed on the second slider, and the second movable frame is rotatably disposed on the second fixed frame via a second rotating shaft, the second rotating shaft being parallel to the axial direction of the detection frame. An image acquisition device is disposed on the second movable frame and is used to acquire images of the surface of the pipe. The third motor is connected to the second lead screw drive.

6. The pipe testing equipment according to claim 5, characterized in that, The detection component also includes an illumination source, which is disposed on the second movable frame and is used to provide illumination for the image acquisition device.

7. The pipe testing equipment according to claim 5, characterized in that, The detection component further includes a liquid cooling component, which comprises: The liquid cooling plate is provided on both the first movable frame and the second movable frame, and the three-dimensional contour measuring instrument and the image acquisition device are both provided on the liquid cooling plate; A liquid-passing pipe, which runs through the liquid-cooling plate, is used to introduce coolant to cool the three-dimensional contour measuring instrument and the image acquisition device.

8. The pipe testing equipment according to claim 5, characterized in that, The detection component also includes an air-cooling component, which is disposed on the detection frame and is used to dissipate heat from the three-dimensional contour measuring instrument and the image acquisition device by blowing air.

9. The pipe testing equipment according to claim 1, characterized in that, The conveying assembly includes: A support frame is disposed on one side of the gantry frame; V-shaped rollers are rotatably mounted on the bracket, with the axis of the V-shaped rollers perpendicular to the axis of the pipe, for supporting and radially limiting the pipe. A fourth motor is connected to the V-shaped roller and is used to drive the V-shaped roller to rotate along its own axis to transport the pipe.

10. The pipe testing equipment according to claim 9, characterized in that, The conveying assembly also includes: A horizontal guide rail is mounted on the bracket, and the guiding direction of the horizontal guide rail is the same as the axial direction of the V-shaped roller. At least two limiting rods are slidably disposed on the horizontal guide rail, and the at least two limiting rods are arranged opposite each other along the axial direction of the V-shaped roller to limit the horizontal radial displacement of the pipe.

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