Intelligent digital imaging detection center for pipeline welding seam

Abstract

The utility model discloses an intelligent digital imaging detection center for a pipeline welding seam, which comprises a centering support system, a module driving system, a detection trolley system, a digital imaging system and a PLC (Programmable Logic Controller) intelligent control system, the module driving system clamps a pipe fitting module through lifting and translation adjustment of the module clamping mechanism, the module driving system can drive a workpiece containing the pipe fitting module to rotate, the detection trolley system is arranged on one side of the center supporting system, and the digital imaging system is arranged on the detection trolley system. The detection trolley system can drive an X-ray machine and a flat panel detector of the digital imaging system to translate and lift and drive the X-ray machine to rotate, and the PLC intelligent control system carries out information interaction with the MES system and the digital imaging system and controls the central supporting system, the module driving system and the detection trolley system to act. X-ray detection and image acquisition and processing are carried out on the workpiece welding seam through the digital imaging system.

Description

Technical Field

[0001] The utility model relates to the technical field of non-destructive flaw detection for pipeline welds, in particular to an intelligent digital imaging detection center for pipeline welds. Background Art

[0002] The X-ray digital imaging technology can achieve dynamic real-time imaging, with fast operation speed and high image quality, improving the detection speed and reliability. Compared with the traditional X-ray non-destructive flaw detection technology, it has great advantages. The X-ray digital imaging technology has been widely applied in various fields, but it has not been popularized in the field of industrial pipelines, especially in the field of petrochemical pipelines.

[0003] The reason why the X-ray digital imaging technology has not been widely applied in the field of industrial pipelines is mainly due to the following two major reasons: (1) The prefabrication of industrial pipelines is basically single-piece production, and basically no two prefabricated finished products (i.e., pipe sections) are the same, so mass production cannot be carried out; (2) Due to the different shapes and specifications of the pipe section finished products, without the assistance of special tooling, it is not easy to rotate. Even if the pipe section finished product can be rotated, due to the inability to accurately position the weld position, intelligent X-ray digital imaging detection cannot be achieved.

[0004] With the doubling of labor costs and the decreasing number of skilled workers, the demand for automation and intelligence in pipeline prefabrication is becoming increasingly strong. Therefore, developing an intelligent non-destructive detection device for pipeline welds based on X-ray digital imaging technology has extraordinary significance. Summary of the Utility Model

[0005] In view of the above deficiencies, the utility model provides an intelligent digital imaging detection center for pipeline welds, which can perform intelligent digital imaging detection on one-dimensional pipe section welds, can truly promote the realization of the full-process intelligence of pipeline prefabrication, and can popularize the X-ray digital imaging technology in the field of industrial pipelines, with great social value and economic value.

[0006] To achieve the above object, the embodiments of the utility model adopt the following technical solutions:

[0007] An intelligent digital imaging detection center for pipeline welds, comprising a centering support system and a module driving system. A workpiece is provided on the centering support system, and the workpiece is a formed pipe section with pipe fitting modules. The module driving system clamps the pipe fitting modules through the lifting and translation adjustment of the module clamping mechanism, and the module driving system can drive the workpiece containing the pipe fitting modules to rotate. The intelligent digital imaging detection center for pipeline welds further comprises a detection trolley system, a digital imaging system, and a PLC intelligent control system. The detection trolley system is arranged on one side of the centering support system, and the digital imaging system is installed on the detection trolley system. The detection trolley system can drive the translation, lifting of the X-ray machine and flat panel detector of the digital imaging system, and the rotation of the X-ray machine. The PLC intelligent control system conducts information interaction with the MES system and the digital imaging system, controls the actions of the centering support system, the module driving system, and the detection trolley system, and conducts X-ray detection, image acquisition and processing on the workpiece weld through the digital imaging system.

[0008] According to one aspect of the present invention, the digital imaging system comprises an X-ray machine, a flat panel detector, and an image acquisition and processing device. The X-ray machine and the flat panel detector are arranged opposite to each other, and the image acquisition and processing device is connected to the flat panel detector.

[0009] According to one aspect of the present invention, the detection trolley system comprises a left-right moving trolley, a front-back moving column, a ray machine lifting mechanism, a ray machine translation mechanism, and a ray machine rotation mechanism, which are connected in sequence. The X-ray machine is connected to the ray machine rotation mechanism, and the flat panel detector is installed on the ray machine lifting mechanism.

[0010] According to one aspect of the present invention, the left-right moving trolley comprises a moving bottom plate and a moving driving component, which are connected. The moving driving component can drive the moving bottom plate to translate left and right. The front-back moving column comprises a moving column body and a moving driving component, which are connected. The moving column body is slidably connected to the moving bottom plate.

[0011] According to one aspect of the present invention, a detector fixing mechanism is fixed on the ray machine lifting mechanism, and the flat panel detector is fixed on the detector fixing mechanism.

[0012] According to one aspect of the present invention, the digital imaging system further comprises a high-voltage generator and a cooler, both of which are installed on the moving bottom plate, and the cooler is arranged on one side of the high-voltage generator.

[0013] According to one aspect of the present invention, the ray machine lifting mechanism comprises a lifting driver and a lifting mounting plate, which are connected. The lifting mounting plate is slidably connected to the moving column body, and the lifting driver can drive the lifting mounting plate to lift on the moving column body.

[0014] According to one aspect of the present utility model, the ray machine translation mechanism includes a translation driver and a translation mounting seat, which are connected. The translation mounting seat is slidably connected to the lifting mounting plate, and the translation driver can drive the translation mounting seat to translate relative to the lifting mounting plate. The X-ray machine is rotatably mounted on the translation mounting seat.

[0015] According to one aspect of the present utility model, the ray machine rotation mechanism includes a rotation driver and a gear transmission mechanism, which are connected and both mounted on the translation mounting seat. One end of the gear transmission mechanism is connected to the rotation driver, and the other end is connected to the X-ray machine.

[0016] According to one aspect of the present utility model, it further includes a base, and the centering support system, module drive system, inspection trolley system, digital imaging system, and PLC intelligent control system are all arranged on the base.

[0017] Advantages of the implementation of the present utility model: An intelligent digital imaging detection center for pipeline welds includes a centering support system and a module drive system. A workpiece is provided on the centering support system, and the workpiece is a formed pipe section with pipe fitting modules. The module drive system clamps the pipe fitting modules through the lifting and translation adjustment of the module clamping mechanism, and the module drive system can drive the workpiece containing the pipe fitting modules to rotate. The intelligent digital imaging detection center for pipeline welds further includes an inspection trolley system, a digital imaging system, and a PLC intelligent control system. The inspection trolley system is arranged on one side of the centering support system, the digital imaging system is installed on the inspection trolley system, and the inspection trolley system can drive the translation, lifting of the X-ray machine and flat panel detector of the digital imaging system, and the rotation of the X-ray machine. The PLC intelligent control system performs information interaction with the MES system and the digital imaging system, controls the actions of the centering support system, module drive system, and inspection trolley system, and performs X-ray detection, image acquisition and processing on the workpiece weld through the digital imaging system. This detection center can perform intelligent digital imaging detection on 1D (one-dimensional) pipe section welds, can promote the realization of the intelligence of all processes of pipeline prefabrication, can popularize and apply the X-ray digital imaging technology in the field of industrial pipelines, and has great social value and economic value. Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required in the embodiments. Obviously, the following described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a schematic diagram of the state of detecting the first workpiece weld of the present utility model;

[0020] Figure 2 This is a schematic diagram showing the state of the second workpiece weld detected by the present utility model;

[0021] Figure 3 is Figure 2 a partial structural schematic diagram of.

[0022] The names corresponding to the serial numbers in the figure are as follows:

[0023] 1. Base; 2. Centering support system; 21. Workpiece support trolley; 211. Sliding bottom plate; 212. Workpiece support seat; 213. Passive roller; 22. Spacing adjustment mechanism; 3. Module drive system; 31. Module clamping mechanism; 32. Module translation mechanism; 4. Digital imaging system; 5. PLC intelligent control system; 6. Detection trolley system; 61. Left - right moving trolley; 62. Front - rear moving column; 63. Detector fixing mechanism; 64. Ray machine translation mechanism; 65. Ray machine lifting mechanism; 66. Ray machine rotation mechanism; 7. X - ray machine; 8. Flat panel detector; 9. High - voltage generator; 10. Cooler; 11. Workpiece; 111. Pipe fitting module; 112. Left pipe fitting; 113. Intermediate straight pipe; 114. Right pipe fitting. Specific implementation mode

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model. In the description of the present utility model, it should be noted that the orientation or positional relationships indicated by the terms "top", "bottom", "one side", "the other side", "front", "rear", "middle part", "inside", "top end", "bottom end", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0025] Embodiment 1

[0026] Such as Figure 1 - Figure 3As shown in the figure, there is an intelligent digital imaging detection center for pipeline welds (hereinafter referred to as the DR detection center). By using a pipeline weld rotation system based on pipe fitting module technology and module clamping technology, and a pipeline weld positioning system based on MES information technology and servo drive technology, and with the help of X-ray digital imaging technology, it can well solve the problem of intelligent X-ray digital imaging detection of pipeline welds, and can truly promote the realization of full intelligent pipeline prefabrication. This DR detection center includes a steel structure box-shaped base 1, a set of centering support system 2, a set of module drive system 3, a detection trolley system 6, a set of digital imaging system 4, and a set of PLC intelligent control system 5. Among them, the X-ray machine 7, flat panel detector 8, high voltage generator 9, cooler 10, etc. of the digital imaging system 4 are used for X-ray digital imaging detection in the double-wall single-image mode. The workpiece 11 is provided on the centering support system 2, and the workpiece 11 is a formed pipe section with a pipe fitting module 111. The module drive system 3 clamps the pipe fitting module 111 through the lifting and translation adjustment of the module clamping mechanism 31, and the module drive system 3 can drive the workpiece 11 containing the pipe fitting module 111 to rotate. The detection trolley system 6 is arranged on one side of the centering support system 2, and the digital imaging system 4 is installed on the detection trolley system 6. The detection trolley system 6 can drive the translation, lifting of the X-ray machine 7 and flat panel detector 8 of the digital imaging system 4, and the rotation of the X-ray machine 7. The PLC intelligent control system 5 is installed on the module drive system 3, and the PLC intelligent control system 5 conducts information interaction with the MES system and the digital imaging system 4, controls the actions of the centering support system 2, module drive system 3, and detection trolley system 6, and conducts X-ray detection, image acquisition and processing on the weld of the workpiece 11 through the digital imaging system 4.

[0027] In this embodiment, the steel structure box-shaped base 1 is used to install the center support system 2, the module drive system 3, and the inspection trolley system 6, serving as the bottom support installation for each system. The base 1 is a complete box-shaped steel structure welded from materials such as steel plates and square tubes. All the component mounting surfaces on it have been precisely machined. The center support system 2, the module drive system 3, the inspection trolley system 6, etc. are movably installed on it through linear guides. The center support system 2 is used for the horizontal support and passive rotation of the workpiece 11. It includes two workpiece support trolleys 21 and a set of spacing adjustment mechanisms 22. Among them, the two workpiece support trolleys 21 are located on the steel structure box-shaped base 1 through linear guides, and are used for the horizontal support and passive rotation of the workpiece 11. A set of spacing adjustment mechanisms 22 is used for adjusting the distance between the two workpiece support trolleys 21. The center support system 2 and the module drive system 3 are on the same horizontal axis and are arranged facing each other. Initially, the inspection trolley system 6 is located at the front side position of the module drive system 3 or the center support system 2. The module drive system 3 is used for the lifting, translation of the module clamping mechanism 31, and the clamping and rotation of the workpiece 11 including the pipe module 111. It includes a set of module clamping mechanisms 31, a set of module rotation mechanisms, a set of module lifting mechanisms, and a set of module translation mechanisms 32. Among them, the module clamping mechanism 31 is used for concentric clamping of the pipe module 111, the module rotation mechanism is used for the rotation of the module clamping mechanism 31, and the module lifting mechanism is used for the lifting of the module clamping mechanism 31 and the module rotation mechanism. The module translation mechanism 32 is used for the left and right movement of the entire module drive system 3, that is, for the translation of the module clamping mechanism 31, the module rotation mechanism, and the module lifting mechanism, and for the installation of the PLC intelligent control system 5. The inspection trolley system 6 includes a moving mechanism (front and back), adjustment mechanisms (left and right, up and down, circumferential). Among them, the moving mechanism is used to translate the adjustment mechanism, the X-ray machine 7, and the flat panel detector 8 together. The adjustment mechanism is used for the left and right translation, up and down lifting, and circumferential rotation of the X-ray machine 7 relative to the moving mechanism, and for the lifting of the flat panel detector 8 relative to the moving mechanism. The digital imaging system 4 is used for X-ray detection, image acquisition and processing of the weld of the workpiece 11 in the double-wall single-image mode. It includes an X-ray machine 7, a flat panel detector 8, and a set of image acquisition and processing equipment. Among them, the X-ray machine 7 is used to emit X-rays to the weld of the workpiece 11, the flat panel detector 8 is used to receive X-rays, and the image acquisition and processing equipment is used to acquire and process the images detected by the flat panel detector 8. The PLC intelligent control system 5 is seamlessly docked with the MES of the production line and the digital imaging system 4, receives instructions from the MES system (such as the specifications of the workpiece 11, the weld position, DR process parameters, etc.), feedbacks the completion status of the work, controls the operation of the center support system 2, the module drive system 3, and the inspection trolley system 6, and coordinates with the digital imaging system 4.

[0028] In this embodiment, in the centering support system 2: Each workpiece support trolley 21 includes a sliding base plate 211, a workpiece support seat 212, and a pair of passive roller wheels 213. The sliding base plate 211 is slidably connected to the base 1 through linear guide rails. The workpiece support seat 212 is vertically fixed on the sliding base plate 211. A pair of passive roller wheels 213 are rotatably installed on one workpiece support seat 212. The structure of the sliding base plate 211 is not limited, and it is generally in the shape of a square plate. The structure of the workpiece support seat 212 is not limited, and it is generally in the shape of a trapezoid or a square frame structure. The passive roller wheels 213 facilitate the horizontal support and passive rotation of the workpiece 11. The spacing adjustment mechanism 22 is composed of a chain and sprocket mechanism and a servo drive mechanism, etc. After the chain and sprocket mechanism is connected to the servo drive mechanism, they are respectively connected to the two sliding base plates 211 of the two workpiece support trolleys 21 for chain drive connection. By driving the chain and sprocket mechanism to operate through the servo drive mechanism, the two sliding base plates 211 (or the two workpiece support trolleys 21) are driven to slide towards or away from each other on the base 1. Alternatively, the spacing adjustment mechanism 22 can also adopt the form of a combination of a ball screw mechanism and a servo drive mechanism. After connecting the ball screw to the servo drive mechanism, one end of the ball screw is threadedly connected to one sliding base plate 211, and the other end is reversely threadedly connected to the other sliding base plate 211. By driving the ball screw to rotate through the servo drive mechanism, the two sliding base plates 211 (or the two workpiece support trolleys 21) are driven to slide towards or away from each other on the base 1.

[0029] In this embodiment, in the module drive system 3: The module translation mechanism 32 includes a translation mounting box body and a translation drive component. The translation mounting box body is a plate-type steel structure box body, which is used to install various components in the module drive system 3. At the same time, the PLC intelligent control system 5 (such as a display screen and a control table) is also installed on the translation mounting box body. The bottom of the translation mounting box body is slidably connected to the base 1 through linear guide rails; the translation drive component is any mechanism that can drive translation. The translation mounting box body is driven by the translation drive component to slide left and right on the base 1, that is, the entire module drive system 3 moves left and right on the base 1. The module clamping mechanism 31 is similar to the structural principle of a four-jaw chuck. It includes a clamping driver, a turntable, and four jaws arranged equidistantly on the turntable. The clamping driver is composed of a servo motor, a planetary reducer, etc. The turntable is rotatably installed on the translation mounting box body. The four jaws are driven by the clamping driver to slide towards the center of the turntable on the turntable at the same time, so as to concentrically clamp the pipe fitting module 111. The module rotation mechanism includes a rotation drive part connected to the turntable. The rotation drive part is composed of a servo motor, a planetary reducer, a slewing bearing, etc. The turntable is driven by the rotation drive part to rotate relative to the translation mounting box body, so as to drive the module clamping mechanism 31 and the workpiece 11 to rotate together. The module lifting mechanism includes a lifting connection part and a lifting drive part, which are connected. The lifting connection part has no specific structure and is used to connect to the module clamping mechanism 31 and the module rotation mechanism. The lifting drive part has no specific structure and can be any mechanism that can drive lifting. The lifting drive part is composed of a servo motor, a planetary reducer, a screw jack, etc. The lifting connection part is driven by the lifting drive part to lift, so as to drive the module rotation mechanism and the module clamping mechanism 31 to lift to a suitable height.

[0030] In this embodiment, in the inspection trolley system 6: the moving mechanism includes a left-right moving trolley 61 and a front-back moving column 62. The left-right moving trolley 61 is used to horizontally translate the front-back moving column 62, the adjustment mechanism (left-right, up-down, circumferential), the X-ray machine 7, and the flat panel detector 8 together. The left-right moving trolley 61 includes a moving bottom plate and a moving driving component connected to the moving bottom plate. The moving bottom plate is slidably connected to the base 1 through a linear guide rail. The moving driving component is any mechanism capable of driving translation, and the moving driving component can drive the moving bottom plate (and all components thereon) to slide left and right on the base 1; the front-back moving column 62 is used to horizontally translate the adjustment mechanism, the X-ray machine 7, and the flat panel detector 8 together. The front-back moving column 62 includes a moving column body and a moving driving component connected to the moving column body. The moving column body is a square box structure or a columnar structure, and its bottom is slidably connected to the moving bottom plate through a linear guide rail. The moving driving component is any mechanism capable of driving translation, and the moving driving component can drive the moving column body (and all components thereon) to slide back and forth on the moving bottom plate; the moving driving component for driving the translation of the moving bottom plate and the moving driving component for driving the translation of the moving column body can be an integral driving component.

[0031] In this embodiment, in the inspection trolley system 6: The adjustment mechanism includes a set of X-ray machine translation mechanism 64, a set of X-ray machine lifting mechanism 65, and a set of X-ray machine rotation mechanism 66. Among them, the X-ray machine lifting mechanism 65 includes a lifting driver and a lifting mounting plate. The lifting driver is a servo motor, which is installed on the top of the moving column and is threadedly connected to the lifting mounting plate through a screw. The lifting mounting plate is slidably installed on the moving column. By rotating the lifting driver, the lifting mounting plate is driven to lift along the moving column, thereby driving the flat panel detector 8, the X-ray machine translation mechanism 64, the X-ray machine rotation mechanism 66, and the X-ray machine 7 to lift together. On the lifting mounting plate of the X-ray machine lifting mechanism 65, there is also a detector fixing mechanism 63 fixed by bolts, welding, or integrally. It is a frame structure in the shape of an arc or an inverted U, and is used to fixedly install the flat panel detector 8. The X-ray machine translation mechanism 64 includes a translation driver and a translation mounting seat, which are connected. The translation driver can also be any mechanism that can drive translation, such as a servo motor. The translation mounting seat is slidably installed on the lifting mounting plate through linear guides. The X-ray machine 7 is rotatably installed on the translation mounting seat. By driving the translation mounting seat to translate relative to the lifting mounting plate by the translation driver, the X-ray machine rotation mechanism 66 and the X-ray machine 7 are driven to translate together; the purpose is to stagger the X-ray machine 7 and the flat panel detector 8 by a small distance, so as to realize the X-ray detection method in the double-wall single-image mode. The X-ray machine rotation mechanism 66 is installed on the translation mounting seat. The X-ray machine rotation mechanism 66 includes a rotation driver and a gear transmission mechanism. The rotation driver can be any mechanism that can drive rotation, such as a servo motor. One end of the gear transmission mechanism is connected to the rotation driver, and the other end is fixed to the X-ray machine 7. By driving the gear transmission mechanism to operate by the rotation driver, according to the principle of gear meshing transmission, the X-ray machine 7 is driven to rotate relative to the translation mounting seat; the purpose is to enable the X-ray machine 7 to still irradiate the weld after the X-ray machine translation mechanism 64 translates a small distance, and to realize the X-ray detection method in the double-wall single-image mode.

[0032] In this embodiment, the digital imaging system 4 further includes a high-voltage generator 9, two coolers 10, a set of monitoring systems, an integrated console, etc. The image acquisition and processing equipment consists of a set of image acquisition software, a set of image processing software, an image acquisition computer (with a monitor), an image processing computer (with a monitor), etc. Among them, the high-voltage generator 9 and the cooler 10 are both installed on the moving bottom plate of the left and right moving trolley 61. The cooler 10 is located above the high-voltage generator 9. The image acquisition computer, the image processing computer, the integrated console, etc. are arranged in the DR detection operation room. The digital imaging system 4 (i.e., the X-ray machine 7, the flat panel detector 8, the software, the computer, the monitoring system, etc.) all adopt existing mature technologies and equipment.

[0033] In this embodiment, the workpiece 11 includes a pipe fitting module 111, a left pipe fitting 112 (tee), an intermediate straight pipe 113, and a right pipe fitting 114 (elbow). The left pipe fitting 112, the intermediate straight pipe 113, and the right pipe fitting 114 are welded in sequence from left to right. The left pipe fitting 112 and the right pipe fitting 114 are respectively installed in the standardized pipe fitting module 111. A first workpiece 11 weld is formed between the left pipe fitting 112 and the intermediate straight pipe 113, and a second workpiece 11 weld is formed between the intermediate straight pipe 113 and the right pipe fitting 114. The pipe fitting module 111 is one or several unified standardized pipe fitting modules 111, which have unified lifting holes suitable for hoisting, positioning and conveying reference planes suitable for transportation and storage, positioning reference planes and clamping positioning holes suitable for grinding, alignment, welding, and DNT. The ends of the pipe fittings in this kind of pipe fitting module 111 that are exposed for grinding, alignment, welding, and DNT have a unified center height and a relatively fixed protruding length. Since this workpiece 11 is equipped with a standardized pipe fitting module 111, it is extremely easy to realize the automation and intelligence of machines for hoisting, transporting, grinding, storing, aligning, welding, DNT, etc. of pipelines. The structure of the machine can be designed extremely simply, and the manufacturing cost of the machine will be extremely low, that is, it can greatly reduce costs and improve the degree of automation and intelligence. This DR detection center is used to detect the first workpiece 11 weld and / or the second workpiece 11 weld. The module clamping mechanism 31 of the module drive system 3 is adapted to the structure of the pipe fitting module 111. The module clamping mechanism 31 can concentrically clamp the pipe fitting module 111, thereby concentrically clamping the left pipe fitting 112 or the right pipe fitting 114, that is, concentrically clamping the entire workpiece 11.

[0034] In practical applications, the centering support system 2, the module drive system 3, and the pipe fitting module 111 are prior arts and will not be elaborated.

[0035] In practical applications, if the workpiece 11 does not have a pipe fitting module 111, the module clamping mechanism 31 can be replaced by an ordinary machining chuck. However, at this time, the workpiece 11 must be hoisted onto the centering support system 2 by a traditional wireless remote control method, and the DR detection alignment of the weld seam is carried out by using a wireless remote control or a wire control method with the help of the monitoring system, and then a non-intelligent DR detection is carried out.

[0036] The beneficial effects of this embodiment are as follows: The intelligent digital imaging detection center developed on the basis of pipe fitting module technology, module clamping technology, and X-ray digital imaging technology. With the cooperation of the production line MES system and intelligent hoisting equipment such as truss manipulators, this detection center can perform intelligent digital imaging detection on 1D (one-dimensional) pipe section welds, thus promoting the realization of the intelligence of all processes of pipe prefabrication; this detection center can promote the popularization and application of X-ray digital imaging technology in the field of industrial pipelines, and has great social value and economic value.

[0037] Embodiment Two

[0038] This embodiment provides an intelligent digital imaging detection method for pipeline welds, and the steps are as follows:

[0039] S1: The PLC intelligent control system 5 receives instructions from the MES system (such as workpiece specifications, weld positions, DR process parameters, etc.) and controls each power component to perform actions;

[0040] S2: Adjust the distance between the two workpiece support trolleys 21 of the centering support system 2 according to the length of the workpiece 11;

[0041] S3: Use the truss manipulator system (not a component of this center) to lift and install the workpiece 11 (pipe fitting) onto the centering support system 2;

[0042] S4: The module drive system 3 moves to a suitable position to the right and clamps the pipe fitting module 111 at one end of the workpiece 11;

[0043] S5: The truss manipulator system (releases the two manipulators) releases the workpiece 11 and withdraws from the DR detection center;

[0044] S6: According to the position data of the first workpiece weld (left weld), the inspection trolley system 6 moves to a suitable position to the right;

[0045] S7: According to the workpiece specifications and DR process parameters, the inspection trolley system 6 adjusts the X-ray machine 7 and the flat panel detector 8: the ray machine lifting mechanism 65 drives the X-ray machine 7 and the flat panel detector 8 to lift together to a suitable height; the front and rear moving column 62 drives the X-ray machine 7 and the flat panel detector 8 to move forward and backward in place; the ray machine translation mechanism 64 drives the X-ray machine 7 to move left and right in place; the ray machine rotation mechanism 66 drives the X-ray machine 7 to rotate and rotates the ray machine outlet in place for double-wall single-image ray detection;

[0046] S8: According to the DR process parameters, perform DR detection, image acquisition, and image processing in the first angle range;

[0047] S9: According to the DR process parameters, the module drive system 3 rotates the workpiece 11 by an angle;

[0048] S10: According to the DR process parameters, perform DR detection, image acquisition, and image processing in the second angle range;

[0049] S11: Repeat the above steps to perform ray detection, image acquisition, and image processing in other angle ranges of the first workpiece weld;

[0050] S12: After the DR detection of the first workpiece weld (left weld) is completed, the inspection trolley system 6 moves to the position of the second workpiece weld (right weld);

[0051] S13: Repeat the above steps S7 - S11 to perform radiographic testing, image acquisition, and image processing for other angular ranges of the second workpiece weld seam.

[0052] S14: After the DR testing of the second workpiece weld seam (right - hand weld seam) is completed, each mechanism in the inspection trolley system 6 returns to its default position.

[0053] S15: The inspection trolley system 6 moves left to its default position.

[0054] S16: Use the truss manipulator system to clamp the workpiece 11.

[0055] S17: The module clamping mechanism 31 of the module drive system 3 releases the workpiece 11 and retracts to its default position.

[0056] S18: The truss manipulator system lifts the workpiece 11 (pipe fitting) away from the DR testing center.

[0057] The beneficial effects of this embodiment are as follows: This DR testing center utilizes a pipeline weld rotation system based on pipe fitting module technology and module clamping technology, and a pipeline weld positioning system based on MES information technology and servo drive technology. With the help of X - ray digital imaging technology, it can well solve the problem of intelligent X - ray digital imaging testing for pipeline welds, and can truly promote the realization of full intelligentization of pipeline prefabrication.

[0058] As described above, only the specific implementation manners of the present utility model are provided, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the claimed rights.

Claims

1. A pipeline weld intelligent digital imaging detection center, comprising a central support system (2) and a module drive system (3), wherein a workpiece (11) is arranged on the central support system (2), wherein the workpiece (11) is a formed pipe section with a pipe module (111), wherein the module drive system (3) clamps the pipe module (111) by lifting and lowering and translating a module clamping mechanism (31), and wherein the module drive system (3) can drive the workpiece (11) containing the pipe module (111) to rotate, wherein: The pipeline weld intelligent digital imaging detection center also includes a detection trolley system (6), a digital imaging system (4), and a PLC intelligent control system (5). The detection trolley system (6) is arranged on one side of the central support system (2), and the digital imaging system (4) is installed on the detection trolley system (6). The detection trolley system (6) can drive the X-ray machine (7) and the flat panel detector (8) of the digital imaging system (4) to translate, lift, and rotate the X-ray machine (7). The PLC intelligent control system (5) exchanges information with the MES system and the digital imaging system (4), controls the actions of the central support system (2), the module drive system (3), and the detection trolley system (6), and performs X-ray detection, image acquisition, and processing on the weld of the workpiece (11) through the digital imaging system (4).

2. The pipeline weld intelligent digital imaging detection center according to claim 1 is characterized in that: The digital imaging system (4) comprises an X-ray machine (7), a flat panel detector (8), and an image acquisition and processing device. The X-ray machine (7) and the flat panel detector (8) are arranged relative to each other, and the image acquisition and processing device is connected to the flat panel detector (8).

3. The pipeline weld intelligent digital imaging detection center according to claim 2 is characterized in that: The detection trolley system (6) includes a left-right movable trolley (61), a front-back movable column (62), a X-ray machine lifting mechanism (65), a X-ray machine translation mechanism (64), and a X-ray machine rotation mechanism (66), which are connected in sequence. The X-ray machine (7) is connected to the X-ray machine rotation mechanism (66), and the flat panel detector (8) is installed on the X-ray machine lifting mechanism (65).

4. The pipeline weld intelligent digital imaging detection center according to claim 3 is characterized in that: The left-right movable trolley (61) comprises a movable base plate and a movable driving component, which are connected. The movable driving component can drive the movable base plate to move left-right. The front-back movable column (62) comprises a movable column and a movable driving component, which are connected. The movable column is slidably connected to the movable base plate.

5. The pipeline weld intelligent digital imaging detection center according to claim 3 is characterized in that: A detector fixing mechanism (63) is fixed on the ray machine lifting mechanism (65), and the flat panel detector (8) is fixed on the detector fixing mechanism (63).

6. The pipeline weld intelligent digital imaging detection center according to claim 4 is characterized in that: The digital imaging system (4) further comprises a high voltage generator (9) and a cooler (10), both of which are mounted on a movable bottom plate, and the cooler (10) is arranged on one side of the high voltage generator (9).

7. The pipeline weld intelligent digital imaging detection center according to claim 4 is characterized in that: The ray machine lifting mechanism (65) comprises a lifting driver and a lifting installation plate, which are connected. The lifting installation plate is slidably connected to the moving column, and the lifting driver can drive the lifting installation plate to move up and down on the moving column.

8. The pipeline weld intelligent digital imaging detection center according to claim 7 is characterized in that: The X-ray machine translation mechanism (64) comprises a translation driver and a translation mounting seat, which are connected. The translation mounting seat is slidably connected to the lifting mounting plate. The translation driver can drive the translation mounting seat to translate relative to the lifting mounting plate. The X-ray machine (7) is rotatably mounted on the translation mounting seat.

9. The pipeline weld intelligent digital imaging detection center according to claim 8 is characterized in that: The X-ray machine rotation mechanism (66) comprises a rotation driver and a gear transmission mechanism, which are connected and mounted on a translation mounting seat. One end of the gear transmission mechanism is connected to the rotation driver and the other end is connected to the X-ray machine (7).

10. The pipeline weld intelligent digital imaging detection center according to claim 1 is characterized in that: It also comprises a base (1), on which the central support system (2), the module drive system (3), the detection vehicle system (6), the digital imaging system (4), and the PLC intelligent control system (5) are all arranged.

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