High-precision pipeline welding seam nondestructive testing device
By combining a multi-axis motion system and a rotating detection ball mechanism, the problem of low efficiency in the detection of complex pipelines by traditional detection devices is solved, realizing high-precision and automated pipeline weld detection and generating high-resolution images.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU RUIDIAN MACHINERY EQUIPMENT CO LTD
- Filing Date
- 2025-04-18
- Publication Date
- 2026-04-21
AI Technical Summary
Existing pipeline weld inspection equipment can only inspect pipelines with a single angle or a single shape, and cannot cope with complex pipelines of various shapes, resulting in low inspection efficiency and the need for manual assistance.
The system employs a multi-axis motion system consisting of an X-axis base, a Y-axis slide, and a Z-axis lifting column. Combined with a rotating detection ball mechanism and an imaging adjustment mechanism, it enables multi-angle and multi-pose detection of complex pipelines. The detection position is adjusted by linear motion along the X, Y, and Z axes and a drive mechanism, and non-destructive testing is performed in conjunction with an X-ray machine and a detector.
It improves the efficiency and accuracy of inspecting complex pipeline welds, enables efficient non-destructive testing of pipelines with different angles and shapes, generates high-resolution images, and reduces manual intervention.
Smart Images
Figure CN224152378U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline weld inspection technology, and more specifically to a high-precision non-destructive testing device for pipeline welds. Background Technology
[0002] Pipelines, as critical infrastructure for energy transmission (such as oil and natural gas) and industrial fluid transport (such as chemical media and water supply), are directly related to socio-economic stability and public safety in their safe operation. However, traditional destructive testing methods require cutting the pipeline for sampling, which is not only costly and inefficient but also damages the pipeline's integrity. To address the demand for welding quality inspection of large equipment components, and aiming to improve and optimize traditional testing methods, increase testing efficiency, improve detection rates, transform towards intelligent and digital methods, and enhance economic, ecological, and social benefits, non-destructive testing (NDT) technology has emerged. With intelligent manufacturing driving industrial transformation in the pipeline industry, the digitalization, automation, and intelligence of NDT have become an inevitable trend in the development of testing technology.
[0003] The shortcomings of existing technologies: Existing pipeline welds are generally characterized by a wide variety of types, small batches, numerous specifications, large spans, and complexity. Traditional inspection devices can usually only inspect pipelines from a single angle or in a single shape, and cannot cope with complex pipeline lines of various shapes. For complex road pipeline inspections, manual assistance is still required, which has certain limitations and greatly reduces the inspection efficiency of the devices. Utility Model Content
[0004] In order to overcome the above-mentioned defects of the prior art, this utility model provides a high-precision non-destructive testing device for pipeline welds, so as to solve the problem that the traditional testing devices in the background art can usually only test pipelines with a single angle or a single shape, and cannot cope with complex pipelines of various shapes, thus having certain limitations in use.
[0005] This utility model provides the following technical solution: a high-precision non-destructive testing device for pipeline welds, including an X-axis base and a Y-axis slide. The Y-axis slide is installed on the top of the X-axis base, and a Z-axis lifting column is fixedly installed on the top of the Y-axis slide. A displacement mechanism for adjusting the detection position is provided on the Z-axis lifting column, and a rotating detection ball mechanism for non-destructive testing of pipeline welds is provided on the displacement mechanism.
[0006] The rotating detection ball mechanism includes a support frame mounted on the displacement mechanism. One end of the support frame is fixedly connected to a base plate. One end of the base plate is provided with an annular slide. An annular gear for achieving rotation at different angles is fixedly connected to the outer side of the annular slide. An imaging adjustment mechanism for adjusting the focal length of the imaging system is provided at the end of the annular slide away from the base plate.
[0007] Preferably, a rotating gear is provided at one end of the substrate near the annular slide, the rotating gear meshing with the surface of the annular gear, and a first driving mechanism for driving the rotating gear to rotate is provided in the middle of the support frame.
[0008] Preferably, the annular slide is provided with two annular guide rails at one end near the substrate, and the substrate is provided with two grooves at one end near the annular slide, which are slidably connected to the annular guide rails.
[0009] Preferably, the imaging adjustment mechanism includes two transmission mechanisms mounted on both sides of the annular slide, with a ray machine and a detector respectively mounted on the top of the two transmission mechanisms, and the ray machine and the detector are positioned relative to each other.
[0010] Preferably, the displacement mechanism includes a Z-axis slider slidably connected to the Z-axis lifting column, one end of the Z-axis slider being rotatably connected to a tilting frame, and a rotary support plate being rotatably connected to one side of the top of the tilting frame, with the support frame fixedly connected to the top of the rotary support plate.
[0011] Preferably, the Z-axis slider is provided with a second drive mechanism for realizing the rotation of the tilting frame around the Y-axis, and a third drive mechanism is provided on one side of the bottom end of the tilting frame for realizing the rotation of the rotary support plate around the Z-axis.
[0012] Preferably, the X-axis base is provided with an X-axis drive mechanism for realizing linear motion along the X-axis of the rotating detection ball mechanism, the Y-axis slide is provided with a Y-axis drive mechanism for realizing linear motion along the Y-axis of the rotating detection ball mechanism, and the Z-axis lifting column is provided with a Z-axis drive mechanism for realizing linear motion along the Z-axis of the rotating detection ball mechanism.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. This utility model achieves linear motion along the X, Y, and Z axes of the rotating detection ball mechanism by using an X-axis base, a Y-axis slide, and a Z-axis lifting column. This adjusts the position of the annular slide so that the pipe to be inspected is located within the inner cavity of the annular slide. Simultaneously, the rotating detection ball mechanism is driven to move linearly along the X, Y, and Z axes according to the pipe's shape. During the movement, a X-ray machine performs non-destructive testing on the weld seams of the pipe. The detector directly or indirectly converts X-rays into electrical signals, which are then digitally processed to generate high-resolution images. An imaging adjustment mechanism is also provided to adjust the focal length of the X-ray machine and the detector, ensuring the accuracy of the inspection results. During the rotation of the annular slide, it slides within the groove cavity via an annular guide rail, ensuring that the equipment maintains its motion accuracy even after the center of gravity shifts during focusing motion.
[0015] 2. This utility model uses a rotating detection ball mechanism to inspect pipelines with complex shapes. Depending on the specific angle or shape of the pipeline, a drive mechanism drives the annular slide to rotate around the X-axis, while a drive mechanism drives the tilting frame and the rotating support plate to rotate around the Y-axis and Z-axis respectively. This allows for adjustment of the pipeline's posture under heavy load to achieve the ideal detection position. This enables the device to inspect welds on complex pipelines with different angles or shapes, effectively improving the device's detection efficiency. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0017] Figure 2 This is a schematic diagram of the overall structure and working state of this utility model.
[0018] Figure 3 This is a schematic diagram of the rotating detection ball mechanism of this utility model.
[0019] Figure 4 This is a schematic diagram of the imaging adjustment mechanism of this utility model.
[0020] Figure 5 This is a schematic diagram of the displacement mechanism of this utility model.
[0021] The attached figures are labeled as follows: 1. X-axis base; 2. Y-axis slide; 3. Z-axis lifting column; 4. Positioning mechanism; 41. Z-axis slider; 42. Tilting frame; 43. Rotary support plate; 5. Rotating detection ball mechanism; 51. Support frame; 52. Base plate; 53. Annular slide; 54. Annular gear; 55. Imaging adjustment mechanism; 551. Transmission mechanism; 552. X-ray machine; 553. Detector; 56. Rotary gear; 57. Annular guide rail. Detailed Implementation
[0022] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The high-precision non-destructive testing device for pipe welds involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0023] This utility model provides a high-precision non-destructive testing device for pipe welds, such as... Figure 1 - Figure 5As shown, it includes an X-axis base 1 and a Y-axis slide 2. The Y-axis slide 2 is installed on the top of the X-axis base 1. A Z-axis lifting column 3 is fixedly installed on the top of the Y-axis slide 2. A displacement mechanism 4 for adjusting the detection position is provided on the Z-axis lifting column 3. A rotating detection ball mechanism 5 for non-destructive testing of pipe welds is provided on the displacement mechanism 4.
[0024] Furthermore, such as Figure 1 and Figure 3 As shown, the rotating detection ball mechanism 5 includes a support frame 51 mounted on the displacement mechanism 4. One end of the support frame 51 is fixedly connected to a base plate 52. One end of the base plate 52 is provided with an annular slide 53. An annular gear 54 for realizing rotation at different angles is fixedly connected to the outer side of the annular slide 53. An imaging adjustment mechanism 55 for adjusting the focal length of the imaging system is provided at the end of the annular slide 53 away from the base plate 52.
[0025] Furthermore, such as Figure 3 and Figure 4 As shown, a rotary gear 56 is provided at one end of the substrate 52 near the annular slide 53. The rotary gear 56 is surface-meshingly connected to the annular gear 54. A first drive mechanism for driving the rotary gear 56 to rotate is provided in the middle of the support frame 51. The first drive mechanism includes a servo motor and a reducer. The input end of the reducer is connected to the output end of the servo motor, and the output end is connected to the rotary gear 56. The high-speed rotation of the servo motor is converted into a low-speed, high-torque output through the reducer, so as to achieve highly stable rotational motion of the rotary gear 56.
[0026] Furthermore, such as Figure 3 As shown, the annular slide 53 is provided with two annular guide rails 57 at one end near the base plate 52. The base plate 52 is provided with two grooves at one end near the annular slide 53, which are slidably connected to the annular guide rails 57. When the rotating gear 56 rotates, it drives the annular gear 54 that is surface-meshing to rotate, so that the annular slide 53 slides in the groove cavity on the base plate 52 through the two annular guide rails 57, realizing the rotation of the annular slide 53 around the X-axis. This effectively improves the running accuracy and stability of the equipment and can ensure that the equipment can maintain its motion accuracy even after the center of gravity shifts during focusing motion.
[0027] Furthermore, such as Figure 3 and Figure 4As shown, the imaging adjustment mechanism 55 includes two transmission mechanisms 551 mounted on both sides of the annular slide 53. The top of the two transmission mechanisms 551 is respectively equipped with a X-ray machine 552 and a detector 553. The X-ray machine 552 and the detector 553 are positioned relative to each other. The transmission mechanism 551 includes a lead screw, a guide rail, and a stepper motor. The stepper motor drives the lead screw to rotate, so that the guide rail can achieve precise linear motion, driving the X-ray machine 552 and the detector 553 to move at their tops, thereby realizing the adjustment of the focal length of the X-ray machine 552 and the detector 553, which effectively improves the stability and accuracy of the imaging system in practical applications.
[0028] Furthermore, such as Figure 5 As shown, the displacement mechanism 4 includes a Z-axis slider 41 slidably connected to the Z-axis lifting column 3. One end of the Z-axis slider 41 is rotatably connected to a tilting frame 42. A rotary support plate 43 is rotatably connected to one side of the top of the tilting frame 42. A support frame 51 is fixedly connected to the top of the rotary support plate 43.
[0029] Furthermore, such as Figure 1 and Figure 5 As shown, a second drive mechanism is provided on the Z-axis slider 41 to realize the rotation of the flip frame 42 around the Y-axis. A third drive mechanism is provided on one side of the bottom end of the flip frame 42 to realize the rotation of the rotary support plate 43 around the Z-axis. The second drive mechanism drives the flip frame 42 to rotate around the Y-axis, and the third drive mechanism drives the rotary support plate 43 to rotate around the Z-axis, thereby driving the rotary detection ball mechanism 5 to rotate in multiple directions and angles. This allows the device to adjust the posture of the pipeline under heavy load and work with an ideal detection position and movement speed.
[0030] Furthermore, such as Figure 1 and Figure 2 As shown, the X-axis base 1 is equipped with an X-axis drive mechanism for realizing the linear motion of the rotating detection ball mechanism 5 along the X-axis; the Y-axis slide 2 is equipped with a Y-axis drive mechanism for realizing the linear motion of the rotating detection ball mechanism 5 along the Y-axis; and the Z-axis lifting column 3 is equipped with a Z-axis drive mechanism for realizing the linear motion of the rotating detection ball mechanism 5 along the Z-axis. The X-axis drive mechanism drives the Y-axis slide 2 to move along the X-axis on the X-axis base 1, the Y-axis drive mechanism drives the Z-axis lifting column 3 to move along the Y-axis on the Y-axis slide 2, and the Z-axis drive mechanism drives the displacement mechanism 4 to move along the Z-axis on the Z-axis lifting column 3, thus realizing the linear motion of the rotating detection ball mechanism 5 along the X, Y, and Z axes. This enables the device to detect complex pipelines at various angles.
[0031] The second drive mechanism, the third drive mechanism, the X-axis drive mechanism, the Y-axis drive mechanism, and the Z-axis drive mechanism have the same structure as the first drive mechanism mentioned above, and their existing technologies are relatively mature, so they will not be described in detail here.
[0032] The working principle of this utility model is as follows: First, the device is horizontally installed in the designated site via the X-axis base 1. Then, one or more pipes to be inspected are placed on the designated tooling device for preparation. According to the inspection requirements of the pipes to be inspected, two transmission mechanisms 551 are activated. The stepper motor in the transmission mechanism 551 drives the lead screw to rotate, so that the guide rail achieves precise linear motion, driving the X-ray machine 552 and detector 553 to move at their top, so as to adjust the focal length of the X-ray machine 552 and detector 553. After preparation is completed, the device is activated through the control system. After activation, the X-axis drive mechanism, Y-axis drive mechanism and Z-axis drive mechanism respectively drive the X-axis base 1, Y-axis slide 2 and Z-axis lifting column 3 to perform linear motion, realizing the linear motion of the rotating detection ball mechanism 5 in the X, Y and Z axes. The first drive mechanism drives the rotating gear 56 to rotate, which drives the surface-meshing ring gear 54 to rotate, so that the ring slide 53 moves through the two ring guide rails 551. 7. Sliding within the groove cavity on the substrate 52 enables the annular slide table 53 to rotate around the X-axis, effectively improving the operating accuracy and stability of the equipment. This ensures that the equipment can maintain its motion accuracy even after the center of gravity shifts during focusing motion. The second drive mechanism drives the tilting frame 42 to rotate around the Y-axis, and the third drive mechanism drives the rotary support plate 43 to rotate around the Z-axis, allowing the device to adjust the posture of the pipeline under heavy load. Each drive mechanism drives the rotating detection ball mechanism 5 to operate in multiple directions and angles, causing the inner cavity of the substrate 52 to move around the pipe surface. This drives the X-ray machine 552 to generate X-rays that perform non-destructive testing on the weld seams of the pipe. The detector 553 converts the X-rays directly or indirectly into electrical signals, which are then digitally processed to generate high-resolution images. After image acquisition, the device automatically moves to the next detection position according to the program settings of the control system to acquire the next detection image, and so on, until all weld seams are inspected.
[0033] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0034] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0035] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-precision non-destructive testing device for pipe welds, comprising an X-axis base (1) and a Y-axis slide (2), wherein the Y-axis slide (2) is mounted on the top of the X-axis base (1), and a Z-axis lifting column (3) is fixedly mounted on the top of the Y-axis slide (2), characterized in that: The Z-axis lifting column (3) is provided with a displacement mechanism (4) for adjusting the detection position, and the displacement mechanism (4) is provided with a rotating detection ball mechanism (5) for non-destructive testing of pipeline welds. The rotating detection ball mechanism (5) includes a support frame (51) mounted on the displacement mechanism (4). One end of the support frame (51) is fixedly connected to a base plate (52). One end of the base plate (52) is provided with an annular slide (53). The outer side of the annular slide (53) is fixedly connected to an annular gear (54) for realizing rotation at different angles. The end of the annular slide (53) away from the base plate (52) is provided with an imaging adjustment mechanism (55) for adjusting the focal length of the imaging system.
2. The high-precision pipeline weld non-destructive testing device according to claim 1, characterized in that: A rotating gear (56) is provided at one end of the substrate (52) near the annular slide (53). The rotating gear (56) is engaged with the surface of the annular gear (54). A first driving mechanism for driving the rotating gear (56) to rotate is provided in the middle of the support frame (51).
3. The high-precision pipeline weld non-destructive testing device according to claim 1, characterized in that: The annular slide (53) has two annular guide rails (57) at one end near the substrate (52), and the substrate (52) has two grooves at one end near the annular slide (53) and is slidably connected to the annular guide rails (57).
4. The high-precision pipeline weld non-destructive testing device according to claim 1, characterized in that: The imaging adjustment mechanism (55) includes two transmission mechanisms (551) installed on both sides of the annular slide (53). The top of the two transmission mechanisms (551) is respectively equipped with a ray machine (552) and a detector (553), and the positions of the ray machine (552) and the detector (553) are arranged relative to each other.
5. The high precision pipe weld non-destructive testing device of claim 1, wherein: The displacement mechanism (4) includes a Z-axis slider (41) slidably connected to the Z-axis lifting column (3). One end of the Z-axis slider (41) is rotatably connected to a tilting frame (42). A rotary support plate (43) is rotatably connected to one side of the top of the tilting frame (42). The support frame (51) is fixedly connected to the top of the rotary support plate (43).
6. A high precision pipe weld non-destructive testing device according to claim 5, characterized in that: The Z-axis slider (41) is provided with a second drive mechanism for realizing the rotation of the flip frame (42) around the Y-axis, and the bottom side of the flip frame (42) is provided with a third drive mechanism for realizing the rotation of the rotary support plate (43) around the Z-axis.
7. The high precision pipe weld non-destructive testing device of claim 1, wherein: The X-axis base (1) is provided with an X-axis drive mechanism for realizing linear motion of the rotating detection ball mechanism (5) along the X-axis. The Y-axis slide (2) is provided with a Y-axis drive mechanism for realizing linear motion of the rotating detection ball mechanism (5) along the Y-axis. The Z-axis lifting column (3) is provided with a Z-axis drive mechanism for realizing linear motion of the rotating detection ball mechanism (5) along the Z-axis.