Intelligent digital imaging detection center for pipeline welding seam

Abstract

The invention discloses a pipeline welding seam intelligent digital imaging detection center, and relates to the technical field of pipeline welding seam nondestructive flaw detection, and the pipeline welding seam intelligent digital imaging detection center comprises a central support system used for horizontal support and passive rotation of a workpiece; the module driving system is used for lifting and translating the module clamping mechanism and clamping and rotating the workpiece containing the pipe fitting module; the digital imaging detection system comprises a detection trolley system and a digital imaging system, and the detection trolley system is used for translation and lifting of an X-ray machine and a flat panel detector of the digital imaging system and rotation of the X-ray machine; the digital imaging system is used for carrying out X-ray detection, image acquisition and processing on a workpiece welding seam in a double-wall single-image mode; and the PLC intelligent control system is used for carrying out information interaction with the MES system and the digital imaging system and controlling the action of the central supporting system, the module driving system and the detection trolley system. According to the invention, intelligent digital imaging detection can be carried out on the pipeline welding seam, and full intelligence of pipeline prefabrication can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of nondestructive flaw detection of pipeline welds, and in particular to an intelligent digital imaging detection center for pipeline welds. Background Art

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

[0003] There are two main reasons why X-ray digital imaging technology has not been widely used in the field of industrial pipelines: (1) The prefabrication of industrial pipelines is basically a single-piece production, and the prefabricated finished products (i.e., pipe sections) are basically no alike, making mass production impossible; (2) The finished pipe sections are not easy to rotate without the assistance of special tooling due to their different shapes and specifications. Even if the finished pipe sections can be rotated, the weld position cannot be accurately located, and intelligent X-ray digital imaging detection cannot be achieved.

[0004] As labor costs increase exponentially and skilled workers become fewer and fewer, the demand for automation and intelligence in pipeline prefabrication becomes more and more urgent. Therefore, it is of extraordinary significance to develop an intelligent non-destructive testing equipment for pipeline welds based on X-ray digital imaging technology. Summary of the invention

[0005] In view of the above-mentioned shortcomings, the present invention provides a pipeline weld intelligent digital imaging detection center, which can perform intelligent digital imaging detection on one-dimensional pipe section welds, can truly promote the intelligence of the entire process of pipeline prefabrication, and can promote the application of X-ray digital imaging technology in the field of industrial pipelines, which has great social and economic value.

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

[0007] A pipeline weld intelligent digital imaging detection center, comprising:

[0008] Centered support system for horizontal support and passive rotation of the workpiece;

[0009] Module drive system, used for lifting and translating the module clamping mechanism, and clamping and rotating the workpiece including the pipe module;

[0010] A digital imaging detection system, comprising a detection trolley system and a digital imaging system, wherein the detection trolley system is used for translating and lifting the X-ray machine and the flat-panel detector of the digital imaging system, and rotating the X-ray machine; the digital imaging system is used for performing double-wall single-image X-ray detection, image acquisition and processing on the weld of the workpiece;

[0011] The PLC intelligent control system is used to exchange information with the MES system and digital imaging system, and to control the actions of the central support system, module drive system, and detection trolley system.

[0012] According to one aspect of the present invention, the detection vehicle system comprises:

[0013] A moving mechanism, used for adjusting the mechanism, the X-ray machine and the flat panel detector to move together;

[0014] The adjusting mechanism is used for the X-ray machine to translate left and right, lift up and down, and rotate in a circumferential direction relative to the moving mechanism, and for the flat panel detector to lift up and down relative to the moving mechanism.

[0015] According to one aspect of the present invention, the adjustment mechanism comprises:

[0016] The X-ray machine translation mechanism is used for the X-ray machine and the X-ray machine rotation mechanism to translate left and right relative to the moving mechanism, so that the X-ray machine and the flat panel detector are staggered by a small distance, thereby realizing the double-wall single-image X-ray detection method;

[0017] The X-ray machine lifting mechanism is used to lift the X-ray machine, the X-ray machine rotation mechanism, the X-ray machine translation mechanism and the flat panel detector up and down relative to the moving mechanism;

[0018] The X-ray machine rotating mechanism is used for the circumferential rotation of the X-ray machine relative to the moving mechanism, so that the X-ray machine can still irradiate the weld after the X-ray machine translation mechanism translates a short distance, and realizes the double-wall single-shadow X-ray detection method.

[0019] According to one aspect of the present invention, the moving mechanism comprises:

[0020] The left and right moving trolley is used to move the column, the adjustment mechanism, the X-ray machine and the flat panel detector together left and right;

[0021] The forward and backward moving column is used to adjust the mechanism, the X-ray machine and the flat panel detector to move forward and backward together.

[0022] According to one aspect of the present invention, the translation mechanism of the X-ray machine includes a translation drive and a translation mount, and the translation drive drives the translation mount to translate, thereby driving the X-ray machine rotation mechanism and the X-ray machine to translate together; the X-ray machine rotation mechanism includes a rotation drive and a gear transmission mechanism, and the rotation drive drives the gear transmission mechanism to operate, thereby driving the X-ray machine to rotate.

[0023] According to one aspect of the present invention, the X-ray machine lifting mechanism includes a lifting drive and a lifting mounting plate. The lifting drive drives the lifting mounting plate to lift and lower, thereby driving the flat panel detector, the X-ray machine translation mechanism, the X-ray machine rotation mechanism and the X-ray machine to lift and lower together.

[0024] According to one aspect of the present invention, the digital imaging system comprises:

[0025] X-ray machine, used to emit X-rays to the weld of the workpiece;

[0026] A flat panel detector for receiving X-rays;

[0027] Image acquisition and processing equipment is used to acquire and process images detected by the flat panel detector.

[0028] According to one aspect of the present invention, it also includes a base, and the central support system, module drive system, detection vehicle system, digital imaging system, and PLC intelligent control system are all arranged on the base.

[0029] According to one aspect of the present invention, the module drive system comprises:

[0030] Module clamping mechanism, used for concentric clamping of pipe fitting modules;

[0031] A module rotation mechanism, used for rotating the module clamping mechanism and the workpiece;

[0032] Module lifting mechanism, used for lifting and lowering the module clamping mechanism and the module rotating mechanism;

[0033] The module translation mechanism is used for the translation of the module clamping mechanism, the module rotating mechanism and the module lifting mechanism, and for the installation of the PLC intelligent control system.

[0034] According to one aspect of the present invention, the central support system comprises:

[0035] Two workpiece support trolleys, used for horizontal support and passive rotation of workpieces;

[0036] The spacing adjustment mechanism is used to adjust the distance between two workpiece supporting carriages.

[0037] Advantages of the implementation of the present invention: A pipeline weld intelligent digital imaging detection center includes: a center support system for horizontal support and passive rotation of the workpiece; a module drive system for lifting and translating the module clamping mechanism, and clamping and rotating the workpiece containing the pipe module; a digital imaging detection system, which includes a detection trolley system and a digital imaging system, wherein the detection trolley system is used for the translation and lifting of the X-ray machine and the flat-panel detector of the digital imaging system, and the rotation of the X-ray machine; the digital imaging system is used for double-wall single-shadow X-ray detection, image acquisition and processing of the workpiece weld; a PLC intelligent control system is used for information interaction with the MES system and the digital imaging system, and controls the actions of the center support system, the module drive system, and the detection trolley 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 (all) processes of pipeline prefabrication, and can promote the application of X-ray digital imaging technology in the field of industrial pipelines, which has great social and economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0039] Figure 1 This is a schematic diagram of the state of detecting the first weld of a workpiece according to the present invention;

[0040] Figure 2 This is a schematic diagram of the state of detecting the second weld of a workpiece according to the present invention;

[0041] Figure 3 It is a structural schematic diagram of the present invention.

[0042] The names corresponding to the serial numbers in the figure are as follows:

[0043] 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 detection system; 5. PLC intelligent control system; 6. Detection trolley system; 61. Left and right moving trolley; 62. Front and rear moving column; 63. Detector fixing mechanism; 64. X-ray machine translation mechanism; 65. X-ray machine lifting mechanism; 66. X-ray machine rotation mechanism; 7. X-ray machine; 8. Flat panel detector; 9. High voltage generator; 10. Cooler; 11. Workpiece; 111. Pipe module; 112. Left pipe; 113. Middle straight pipe; 114. Right pipe. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] Embodiment 1

[0046] like Figure 1 - Figure 3As shown, a pipeline weld intelligent digital imaging detection center (hereinafter referred to as DR detection center) utilizes a pipeline weld rotation system based on pipe 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 intelligence of pipeline prefabrication; this DR detection center includes a steel box-shaped base 1, a set of central support system 2, a set of module drive system 3, a set of digital imaging detection system 4, and a set of PLC intelligent control system 5; wherein the digital imaging detection system 4 includes a detection trolley system 6 and a set of digital imaging system, and double-wall single-shadow X-ray digital imaging detection is performed through the X-ray machine 7, flat panel detector 8, high-voltage generator 9, cooler 10 and the like of the digital imaging system. The central support system 2 is provided with a workpiece 11, and the workpiece 11 is a formed pipe section with a pipe module 111. The module drive system 3 clamps the pipe module 111 by adjusting the lifting and translation of the module clamping mechanism 31, and the module drive system 3 can drive the workpiece 11 containing the pipe module 111 to rotate; the inspection trolley system 6 is arranged on one side of the central support system 2, and the digital imaging system is installed on the inspection trolley system 6. The inspection trolley system 6 can drive the translation, lifting and rotation of the X-ray machine 7 and the flat-panel detector 8 of the digital imaging system, and the PLC intelligent control system 5 is installed on the module drive system 3. The PLC intelligent control system 5 exchanges information with the MES system and the digital imaging system to control the actions of the central support system 2, the module drive system 3, and the inspection trolley system 6, and performs X-ray detection, image acquisition and processing on the weld of the workpiece 11 through the digital imaging system.

[0047] In this embodiment, the steel box-shaped base 1 is used to install the center support system 2, the module drive system 3, and the detection trolley system 6, and is used as the bottom support installation of each system; the base 1 is a complete box-shaped steel structure welded from materials such as steel plates and square tubes, and all the component mounting surfaces thereon are precision machined, and the center support system 2, the module drive system 3, the detection trolley system 6, etc. are movably installed thereon through linear guide rails. The center support system 2 is used for horizontal support and passive rotation of the workpiece 11, and includes two workpiece support trolleys 21 and a set of spacing adjustment mechanisms 22, wherein the two workpiece support trolleys 21 are located on the steel box-shaped base 1 through linear guide rails, and are used for 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 the two are arranged oppositely; initially, the digital imaging detection system 4 is located at the positive side position of the module drive system 3 or the center support system 2. The module driving system 3 is used for lifting and lowering, translating the module clamping mechanism 31 and clamping and rotating the workpiece 11 including the pipe module 111. It includes a set of module clamping mechanisms 31, a set of module rotating mechanisms, a set of module lifting mechanisms, and a set of module translation mechanisms 32. The module clamping mechanism 31 is used for concentric clamping of the pipe module 111, the module rotating mechanism is used for rotating the module clamping mechanism 31, and the module lifting mechanism is used for lifting and lowering the module clamping mechanism 31 and the module rotating mechanism; the module translation mechanism 32 is used for left and right movement of the entire module driving system 3, that is, for translation of the module clamping mechanism 31, the module rotating mechanism and the module lifting mechanism, and for the installation of the PLC intelligent control system 5. The detection trolley system 6 includes a moving mechanism (front and back) and an adjusting mechanism (left and right, up and down, circumferentially), wherein the moving mechanism is used for translation of the adjusting mechanism, the X-ray machine 7 and the flat panel detector 8 together; the adjusting mechanism is used for left and right translation, up and down lifting and circumferential rotation of the X-ray machine 7 relative to the moving mechanism, and for lifting and lowering the flat panel detector 8 relative to the moving mechanism. The digital imaging system is used for double-wall single-image X-ray detection, image acquisition and processing of the workpiece weld, and includes an X-ray machine 7, a flat-panel detector 8, and a group of image acquisition and processing equipment, wherein the X-ray machine 7 is used to emit X-rays to the workpiece weld, 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 connected with the MES and digital imaging system of the production line, receives instructions from the MES system (such as workpiece specifications, weld position, DR process parameters, etc.), feedbacks the completion of work, controls the work of the center support system 2, the module drive system 3, and the detection trolley system 6 of the digital imaging detection system 4, and maintains coordination with the digital imaging system of the digital imaging detection system 4.

[0048] In this embodiment, in the central support system 2: each workpiece support trolley 21 includes a sliding base plate 211, a workpiece support seat 212, and a pair of passive rollers 213, wherein the sliding base plate 211 is slidably connected to the base 1 through a linear guide rail, the workpiece support seat 212 is vertically fixed on the sliding base plate 211, and a pair of passive rollers 213 are rotatably mounted on a workpiece support seat 212; the sliding base plate 211 has no limited structure and is in the shape of a square plate as a whole, the workpiece support seat 212 has no limited structure and is in the shape of a trapezoidal or square frame as a whole, and the passive rollers 213 facilitate horizontal support and passive rotation of the workpiece 11. The spacing adjustment mechanism 22 is composed of a chain sprocket mechanism and a servo drive mechanism, etc., wherein the chain sprocket mechanism is connected to the servo drive mechanism, and is respectively connected to the two sliding base plates 211 of the two workpiece support trolleys 21 by chain transmission, and the chain sprocket mechanism is driven to operate by the servo drive mechanism, thereby driving the two sliding base plates 211 (or the two workpiece support trolleys 21) to slide toward or away from each other on the base 1; or, the spacing adjustment mechanism 22 can also be in the form of a combination of a ball screw mechanism and a servo drive mechanism, after the ball screw is connected 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, and the servo drive mechanism drives the ball screw to rotate, thereby driving the two sliding base plates 211 (or the two workpiece support trolleys 21) to slide toward or away from each other on the base 1.

[0049] In this embodiment, in the module drive system 3: the module translation mechanism 32 includes a translation installation box and a translation drive component, wherein the translation installation box is a plate steel box for installing various components in the module drive system 3, and the PLC intelligent control system 5 (such as a display screen and a control console) is also installed on the translation installation box, and the bottom of the translation installation box is slidably connected to the base 1 through a linear guide rail; the translation drive component is any mechanism that can drive translation, and the translation installation box is driven by the translation drive component to slide left and right on the base 1, so that 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-claw chuck, which includes a clamping driver, a turntable, and four clamping claws equidistantly arranged on the turntable, wherein the clamping driver is composed of a servo motor, a planetary reducer, etc., and the turntable is rotatably installed on the translation installation box, and the clamping driver drives the four clamping claws to slide on the turntable toward the axis of the turntable at the same time, thereby concentrically clamping the pipe module 111. The module rotation mechanism includes a rotation drive unit connected to the turntable, which is composed of a servo motor, a planetary reducer, a slewing bearing, etc. The rotation drive unit drives the turntable to rotate relative to the translation installation box, thereby driving the module clamping mechanism 31 and the workpiece 11 to rotate together. The module lifting mechanism includes a lifting connection unit and a lifting drive unit, which are connected, wherein the lifting connection unit is not limited in structure and is used to connect with the module clamping mechanism 31 and the module rotation mechanism. The lifting drive unit is not limited in structure and can be any mechanism that can drive lifting. The lifting drive unit is composed of a servo motor, a planetary reducer, a screw lifter, etc. The lifting connection unit is driven to lift and lower through the lifting drive unit, thereby driving the module rotation mechanism and the module clamping mechanism 31 to lift and lower to a suitable height.

[0050] In this embodiment, in the detection trolley system 6: the moving mechanism includes a left-right moving trolley 61 and a set of forward and backward moving columns 62, wherein the left-right moving trolley 61 is used to move the forward and backward moving columns 62, the adjustment mechanism (left-right, up-down, circumferential), the X-ray machine 7 and the flat-panel detector 8 together left-right translation, the left-right moving trolley 61 includes a moving base plate, a moving driving component connected to the moving base plate, wherein the moving base plate is slidably connected to the base 1 through a linear guide rail, and the moving driving component is any mechanism that can drive translation, and the moving driving component can drive the moving base plate (and the components thereon) to slide left-right on the base 1 The front-to-back movable column 62 is used to adjust the mechanism, the X-ray machine 7 and the flat-panel detector 8 to move forward and backward together. The front-to-back movable column 62 includes a movable column and a movable driving component connected to the movable column, wherein the movable column is a square box-type structure or a columnar structure, and its bottom is slidably connected to the movable base plate through a linear guide rail. The movable driving component is any mechanism that can drive translation. The movable driving component can drive the movable column (and its components) to slide forward and backward on the movable base plate; the movable driving component that drives the movable base plate to translate and the movable driving component that drives the movable column to translate can be an integral driving component.

[0051] In this embodiment, in the detection 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. 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. The lifting driver rotates and drives the lifting mounting plate to rise and fall 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 rise and fall together. The detector fixing mechanism 63 is also fixed on the lifting mounting plate of the X-ray machine lifting mechanism 65 by bolts or welding or integrally, which is an arc-shaped or inverted U-shaped frame structure for fixing and mounting 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 adopt any mechanism that can drive translation, such as a servo motor. The translation mounting seat is slidably mounted on the lifting mounting plate through a linear guide rail, and the X-ray machine 7 is rotatably mounted on the translation mounting seat. The translation driver drives the translation mounting seat to translate relative to the lifting mounting plate, thereby driving the X-ray machine rotation mechanism 66 and the X-ray machine 7 to translate together; the purpose is to make the X-ray machine 7 and the flat-panel detector 8 staggered by a small distance, thereby realizing the double-wall single-image X-ray detection method. The X-ray machine rotating mechanism 66 is installed on the translation mounting seat. The X-ray machine rotating mechanism 66 includes a rotation driver and a gear transmission mechanism. The rotation driver can adopt 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. The gear transmission mechanism is driven by the rotation driver to operate, and according to the gear meshing transmission principle, 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 short distance, and realize the double-wall single-image X-ray detection method.

[0052] In this embodiment, the digital imaging system also includes a high-voltage generator 9, two coolers 10, a monitoring system, an integrated console, etc. The image acquisition and processing equipment is composed of a set of image acquisition software, a set of image processing software, an image acquisition computer (with a display), an image processing computer (with a display), etc. 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, and the image acquisition computer, image processing computer, integrated console, etc. are set in the DR detection operation room. The digital imaging system (i.e., X-ray machine 7, flat panel detector 8, software, computer, monitoring system, etc.) all adopts existing mature technologies and equipment.

[0053] 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), wherein the left pipe fitting 112, the intermediate straight pipe 113, and the right pipe fitting 114 are welded in sequence from left to right, and the left pipe fitting 112 and the right pipe fitting 114 are respectively loaded into the standardized pipe fitting module 111, and a first weld of the workpiece 11 is formed between the left pipe fitting 112 and the intermediate straight pipe 113, and a second weld of the workpiece 11 is formed between the intermediate straight pipe 113 and the right pipe fitting 114; the pipe fitting module 111 is one or more unified standardized pipe fitting modules 111, which have a unified hoisting hole suitable for hoisting, suitable for The positioning and conveying reference surface for transportation and storage is suitable for the positioning reference surface and clamping positioning hole for grinding, assembly, welding, and DNT; the exposed ends of the pipes in the pipe module 111 for grinding, assembly, welding, and DNT have a uniform center height and a relatively fixed extension length; because the workpiece 11 has a standardized pipe module 111, it is extremely easy to realize the automation and intelligence of the machine for lifting, transportation, grinding, storage, assembly, welding, DNT, etc., the structure of the machine can be designed to be extremely simple, and the manufacturing cost of the machine will be extremely low, that is, it can greatly reduce the cost and improve the degree of automation and intelligence. This DR detection center is used to detect the weld of the first workpiece 11 and / or the weld of the second workpiece 11; the module clamping mechanism 31 of the module drive system 3 is adapted to the structure of the pipe module 111, and the module clamping mechanism 31 can concentrically clamp the pipe module 111, thereby concentrically clamping the left pipe 112 or the right pipe 114, that is, concentrically clamping the entire workpiece 11.

[0054] In practical applications, the central support system 2, the module driving system 3, and the pipe module 111 are existing technologies and will not be described in detail.

[0055] The beneficial effects of this embodiment are as follows: the intelligent digital imaging detection center developed on the basis of pipe module technology, module clamping technology and X-ray digital imaging technology, with the cooperation of the production line MES system and intelligent lifting equipment such as truss manipulators, can perform intelligent digital imaging detection on 1D (one-dimensional) pipe segment welds, thereby promoting the intelligentization of all (all) processes of pipeline prefabrication; this detection center can promote the application of X-ray digital imaging technology in the field of industrial pipelines, which has great social and economic value.

[0056] Embodiment 2

[0057] This embodiment provides a pipeline weld intelligent digital imaging detection method, the steps of which are as follows:

[0058] S1: The PLC intelligent control system 5 receives instructions from the MES system (such as workpiece specifications, weld position, DR process parameters, etc.) to control each power component to perform actions;

[0059] S2: adjusting the distance between the two workpiece support carriages 21 of the center support system 2 according to the length of the workpiece 11;

[0060] S3: Use the truss manipulator system (not part of this center) to lift the workpiece 11 (pipe fitting) onto the central support system 2;

[0061] S4: The module driving system 3 moves rightward to a suitable position and clamps the pipe module 111 at one end of the workpiece 11;

[0062] S5: The truss robot system (releases the two robots) releases the workpiece 11 and evacuates the DR inspection center;

[0063] S6: According to the position data of the first workpiece weld (the left weld), the detection carriage system 6 moves rightward to a suitable position;

[0064] 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 X-ray machine lifting mechanism 65 drives the X-ray machine 7 and the flat panel detector 8 to rise and fall to a suitable height; the forward and backward moving column 62 drives the X-ray machine 7 and the flat panel detector 8 to move forward and backward to a position; the X-ray machine translation mechanism 64 drives the X-ray machine 7 to move left and right to a position; the X-ray machine rotation mechanism 66 drives the X-ray machine 7 to rotate and rotates the X-ray machine outlet to a position so as to perform double-wall single-shadow X-ray detection;

[0065] S8: performing DR detection, image acquisition, and image processing within a first angle range according to DR process parameters;

[0066] S9: According to the DR process parameters, the module driving system 3 rotates the workpiece 11 by an angle;

[0067] S10: performing DR detection, image acquisition, and image processing in a second angle range according to DR process parameters;

[0068] S11: Repeat the above steps to perform radiographic detection, image acquisition, and image processing at other angles of the first workpiece weld;

[0069] S12: After the DR inspection of the first workpiece weld (the left weld) is completed, the inspection carriage system 6 moves rightward to the position of the second workpiece weld (the right weld);

[0070] S13: repeat the above steps S7-S11 to perform radiographic detection, image acquisition, and image processing of other angle ranges of the second workpiece weld;

[0071] S14: The DR detection of the second workpiece weld (the right weld) is completed, and each mechanism in the detection trolley system 6 is restored to the default position;

[0072] S15: Detecting that the trolley system 6 moves to the left to the default position;

[0073] S16: Clamp the workpiece 11 using the truss manipulator system;

[0074] S17: the module clamping mechanism 31 of the module driving system 3 releases the workpiece 11 and returns to the default position;

[0075] S18: The truss robot system lifts the workpiece 11 (pipe) away from the DR inspection center.

[0076] The beneficial effects of this embodiment are as follows: This DR inspection center utilizes a pipeline weld rotation system based on pipe 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, can well solve the problem of intelligent X-ray digital imaging inspection of pipeline welds, and can truly promote the realization of full intelligence of pipeline prefabrication.

[0077] Embodiment 3

[0078] The difference between this embodiment and the first embodiment is that the workpiece 11 includes a pipe module 111, a left pipe 112, and a middle straight pipe 113, that is, the workpiece 11 only includes two welded pipes and has only one weld.

[0079] In this embodiment, the left pipe 112 and the middle straight pipe 113 are welded to each other, and the left end of the left pipe 112 is loaded into the standardized pipe module 111, and a first workpiece weld is formed between the left pipe 112 and the middle straight pipe 113; the pipe module 111 is one or more unified standardized pipe modules 111, which have unified hoisting holes suitable for hoisting, positioning and conveying reference surfaces suitable for transportation and storage, and positioning reference surfaces and clamping positioning holes suitable for grinding, assembly, welding, and DNT; the exposed ends of the pipes in this pipe module 111 for grinding, assembly, welding, and DNT have a unified center height and a relatively fixed extension length; because this workpiece 11 has a standardized pipe module 111, it is extremely easy to realize the automation and intelligence of machines for hoisting, transportation, grinding, storage, assembly, welding, DNT, etc. for pipelines, the structure of the machine can be designed to be extremely simple, and the manufacturing cost of the machine will be extremely low, that is, it can greatly reduce the cost and improve the degree of automation and intelligence. This DR inspection center is used to inspect the first workpiece weld; the module clamping mechanism 31 of the module drive system 3 is adapted to the pipe module 111 structure, and the module clamping mechanism 31 can concentrically clamp the pipe module 111, thereby concentrically clamping the left pipe 112, that is, concentrically clamping the entire workpiece 11.

[0080] In this embodiment, the steps of the pipeline weld intelligent digital imaging detection method are as follows:

[0081] S1: The PLC intelligent control system 5 receives instructions from the MES system (such as workpiece specifications, weld position, DR process parameters, etc.) to control each power component to perform actions;

[0082] S2: adjusting the distance between the two workpiece support carriages 21 of the center support system 2 according to the length of the workpiece 11;

[0083] S3: Use the truss manipulator system (not part of this center) to lift the workpiece 11 (pipe fitting) onto the central support system 2;

[0084] S4: The module driving system 3 moves rightward to a suitable position and clamps the pipe module 111 at one end of the workpiece 11;

[0085] S5: The truss robot system (releases the two robots) releases the workpiece 11 and evacuates the DR inspection center;

[0086] S6: According to the position data of the first workpiece weld (the left weld), the detection carriage system 6 moves rightward to a suitable position;

[0087] 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 X-ray machine lifting mechanism 65 drives the X-ray machine 7 and the flat panel detector 8 to rise and fall to a suitable height; the forward and backward moving column 62 drives the X-ray machine 7 and the flat panel detector 8 to move forward and backward to a position; the X-ray machine translation mechanism 64 drives the X-ray machine 7 to move left and right to a position; the X-ray machine rotation mechanism 66 drives the X-ray machine 7 to rotate and rotates the X-ray machine outlet to a position so as to perform double-wall single-shadow X-ray detection;

[0088] S8: performing DR detection, image acquisition, and image processing within a first angle range according to DR process parameters;

[0089] S9: According to the DR process parameters, the module driving system 3 rotates the workpiece 11 by an angle;

[0090] S10: performing DR detection, image acquisition, and image processing in a second angle range according to DR process parameters;

[0091] S11: Repeat the above steps to perform radiographic detection, image acquisition, and image processing at other angles of the first workpiece weld;

[0092] S12: The DR detection of the first workpiece weld (the left weld) is completed, and each mechanism in the detection trolley system 6 is restored to the default position;

[0093] S13: The detection vehicle system 6 moves to the left to the default position;

[0094] S14: Clamp the workpiece 11 using a truss manipulator system;

[0095] S15: the module clamping mechanism 31 of the module driving system 3 releases the workpiece 11 and returns to a default position;

[0096] S16: The truss robot system lifts the workpiece 11 (pipe) away from the DR inspection center.

[0097] The beneficial effects of this embodiment are as follows: This DR detection center utilizes a pipeline weld rotation system based on pipe 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, can well solve the problem of intelligent X-ray digital imaging detection of pipeline welds, and can truly promote the realization of full intelligence of pipeline prefabrication.

[0098] Embodiment 4

[0099] The difference between this embodiment and embodiment 1 is that the workpiece 11 includes a left pipe 112, a middle straight pipe 113, and a right pipe 114, that is, the workpiece 11 does not include a pipe module 111. At this time, the module clamping mechanism 31 can be replaced by an ordinary machined chuck, but the workpiece 11 must be hoisted onto the central support system 2 by the traditional wireless remote control method, and the DR detection and alignment of the weld must be carried out by wireless remote control or line control with the help of a monitoring system, and then non-intelligent DR detection is carried out.

[0100] In this embodiment, the left pipe 112, the middle straight pipe 113, and the right pipe 114 are welded in sequence from left to right, and a first workpiece weld is formed between the left pipe 112 and the middle straight pipe 113, and a second workpiece weld is formed between the middle straight pipe 113 and the right pipe 114. This DR detection center is used to detect the first workpiece weld and / or the second workpiece weld; the module clamping mechanism 31 of the module drive system 3 is replaced by a common machining chuck, and its structure is adapted to the structure of the left pipe 112 or the right pipe 114, that is, the workpiece 11. The common machining chuck can concentrically clamp the left pipe 112 or the right pipe 114, thereby concentrically clamping the entire workpiece 11.

[0101] In this embodiment, this inspection center still has the advantage of being able to solve the problem of X-ray digital imaging inspection of pipeline welds, but it has the defect of not being able to truly promote the realization of full intelligence of pipeline prefabrication, and has the disadvantages of high cost and low degree of automation and intelligence.

[0102] The beneficial effects of this embodiment are as follows: this DR detection center can solve the problem of X-ray digital imaging detection of pipeline welds, can reduce labor costs, and is conducive to the promotion and application of X-ray digital imaging technology in the field of industrial pipelines.

[0103] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the art within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. An intelligent digital imaging detection center for pipeline welds, characterized in that: include: A central support system (2) for horizontal support and passive rotation of the workpiece (11); A module driving system (3) for lifting and translating the module clamping mechanism (31) and for clamping and rotating a workpiece (11) including a pipe module (111); A digital imaging detection system (4), comprising a detection trolley system (6) and a digital imaging system, wherein the detection trolley system (6) is used for translating and lifting an X-ray machine (7) and a flat panel detector (8) of the digital imaging system, and for rotating the X-ray machine (7); the digital imaging system is used for performing double-wall single-image X-ray detection, image acquisition and processing on a weld of a workpiece (11); The PLC intelligent control system (5) is used to exchange information with the MES system and the digital imaging system, and control the actions of the central support system (2), the module drive system (3), and the detection trolley system (6).

2. The pipeline weld intelligent digital imaging detection center according to claim 1 is characterized in that: The detection vehicle system (6) comprises: The moving mechanism is used for the adjustment mechanism, the X-ray machine (7) and the flat panel detector (8) to move together in translation; the adjustment mechanism is used for the X-ray machine (7) to move left and right, to move up and down, and to rotate in a circumferential direction relative to the moving mechanism, and for the flat panel detector (8) to move up and down relative to the moving mechanism.

3. The pipeline weld intelligent digital imaging detection center according to claim 2 is characterized in that: The regulating mechanism comprises: The X-ray machine translation mechanism (64) is used for the X-ray machine (7) and the X-ray machine rotation mechanism (66) to translate left and right relative to the moving mechanism, so that the X-ray machine (7) and the flat panel detector (8) are offset by a small distance, thereby realizing a double-wall single-image X-ray detection method; The X-ray machine lifting mechanism (65) is used for the X-ray machine (7), the X-ray machine rotating mechanism (66), the X-ray machine translation mechanism (64) and the flat panel detector (8) to be lifted up and down relative to the moving mechanism; The X-ray machine rotating mechanism (66) is used for the X-ray machine (7) to rotate circumferentially relative to the moving mechanism, so that the X-ray machine (7) can still irradiate the weld after the X-ray machine translation mechanism (64) translates a short distance, thereby realizing a double-wall single-image X-ray detection method.

4. The pipeline weld intelligent digital imaging detection center according to claim 2 is characterized in that: The moving mechanism comprises: A left-right movable carriage (61) is used to move the upright column (62), the adjustment mechanism, the X-ray machine (7) and the flat panel detector (8) together left-right; The forward and backward movable column (62) is used to adjust the mechanism, the X-ray machine (7) and the flat panel detector (8) to move forward and backward together.

5. The pipeline weld intelligent digital imaging detection center according to claim 3 is characterized in that: The X-ray machine translation mechanism (64) includes a translation driver and a translation mounting seat, and the translation driver drives the translation mounting seat to translate, thereby driving the X-ray machine rotation mechanism (66) and the X-ray machine (7) to translate together; the X-ray machine rotation mechanism (66) includes a rotation driver and a gear transmission mechanism, and the rotation driver drives the gear transmission mechanism to operate, thereby driving the X-ray machine (7) to rotate.

6. The pipeline weld intelligent digital imaging detection center according to claim 3 is characterized in that: The X-ray machine lifting mechanism (65) comprises a lifting drive and a lifting mounting plate. The lifting drive drives the lifting mounting plate to lift and lower, 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 and lower together.

7. The pipeline weld intelligent digital imaging detection center according to claim 1 is characterized in that: The digital imaging system comprises: An X-ray machine (7) for emitting X-rays to the weld of the workpiece (11); A flat panel detector (8), used for receiving X-rays; The image acquisition and processing device is used to acquire and process images detected by the flat panel detector (8).

8. The pipeline weld intelligent digital imaging detection center according to any one of claims 1 to 7, 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, and the PLC intelligent control system (5) are all arranged.

9. The pipeline weld intelligent digital imaging detection center according to claim 8 is characterized in that: The module drive system (3) comprises: A module clamping mechanism (31) for concentrically clamping the pipe module (111); A module rotating mechanism, used for rotating the module clamping mechanism (31) and the workpiece (11); A module lifting mechanism, used for lifting and lowering the module clamping mechanism (31) and the module rotating mechanism; The module translation mechanism (32) is used for translation of the module clamping mechanism (31), the module rotating mechanism and the module lifting mechanism, and for installation of a PLC intelligent control system (5).

10. The pipeline weld intelligent digital imaging detection center according to claim 8 is characterized in that: The central support system (2) comprises: Two workpiece support carriages (21) for horizontal support and passive rotation of the workpiece (11); The spacing adjustment mechanism (22) is used for adjusting the distance between the two workpiece supporting carriages (21).

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