Automatic X-ray detection device suitable for longitudinal welding seam of cylindrical component

Abstract

The invention provides an automatic X-ray detection device suitable for a longitudinal welding seam of a cylindrical component, an automatic rotary platform of the device is of a hollow rotary structure, a leveling mechanism is arranged on the upper supporting surface in the circumferential direction, and a shell section product is supported and leveled, so that the longitudinal welding seam is parallel to a lifting path of an imaging plate and an X-ray generator; the imaging plate vertical lifting mechanism and the X-ray generator vertical lifting mechanism are positioned on the inner side and the outer side of the shell section product; an imaging plate telescoping mechanism is fixed on the imaging plate vertical lifting mechanism, an imaging plate is fixed at the end, close to a shell section product, of the imaging plate telescoping mechanism, and the imaging plate vertical lifting mechanism drives the imaging plate to do lifting motion, so that the height of the imaging plate is matched with that of the X-ray generator; the imaging plate telescoping mechanism drives the imaging plate to move horizontally. The X-ray generator is installed at the upper end of the X-ray generator vertical lifting mechanism, the X-ray generator is driven to do lifting motion, and longitudinal welding seam whole-section detection is carried out.

Description

Technical Field

[0001] The invention belongs to the field of weld detection of cylindrical rotating components, and in particular relates to an automatic X-ray detection device suitable for longitudinal welds of cylindrical components. Background Art

[0002] With the construction of digital production lines, batch production and research and development tasks have exploded, and the introduction of various advanced manufacturing technologies has greatly improved production and manufacturing capabilities, which has brought with it huge pressure on testing work. With the development of high-density launch missions, the production volume of shell products has increased significantly. According to the welding quality control requirements (GJB481-1988) and the general requirements for welding quality control of aerospace products (QJ3099-1999), the internal quality of the welds of aluminum alloy tank shells needs to be 100% radiographically inspected. However, the current shell task volume is large. Figure 1 The shell segment shown needs to be adjusted and transilluminated 8 times before the transillumination of the shell segment can be completed. The tank can be welded and formed only after the inspection is completed.

[0003] After the tank shell (or barrel) longitudinal seam welding is completed, each longitudinal seam needs to be X-rayed. Only after all welds are tested and qualified can the next process of tank body assembly and circumferential welding be carried out. In the existing carrier series, the tank shell welds are still inspected by film X-ray technology. The longitudinal seams of the shell are transilluminated by manually adjusting the machine head and the product. The inspection process mainly has the following problems:

[0004] (1) Low degree of digitization: The film X-ray detection process is complicated, and the negative film is non-digital structure data, which makes it inconvenient to store and review later.

[0005] Radiographic testing based on film technology requires processes such as transillumination arrangement, film exposure, darkroom development, fixing, drying, and film evaluation. The testing cycle is long, and the longitudinal seam testing of a single shell segment takes about 2 hours. In addition, the storage and communication of radiographic films are inconvenient, especially during the quality review process, which requires a lot of time to search through boxes and cabinets, and to look through the films, which is time-consuming and laborious. In addition, the traditional film transillumination process consumes a lot of film, and the consumption of consumables such as film processors and fixing solutions also makes the testing cost high.

[0006] (2) Low degree of automation: Film X-ray detection takes up a lot of labor, has high manual labor intensity, a long detection cycle, and low detection automation efficiency.

[0007] During conventional film radiography, inspectors need to repeatedly go in and out of the radiography room to adjust the shell segments, X-ray machine heads, and tooling equipment, measure and adjust to align the longitudinal seams with the X-ray source, and then manually paste lead type and apply film. Most shell segments need to be manually adjusted in and out of the radiography room more than 8 times before the inspection of a single shell segment product can be completed. The layout and adjustment before radiography, film cutting, darkroom film processing, etc., all take up a lot of manpower and time, requiring at least 2-3 inspectors, and the inspection time is about 2 hours. It can be seen that the traditional film X-ray inspection process is complicated, labor-intensive, and has a long inspection cycle.

[0008] (3) The shell segment deforms greatly under its own gravity and becomes elliptical. The support points of the support rollers of the trolley are generally designed according to the standard outer circle of the tank. When a weld is inspected and qualified and the next longitudinal weld is switched, the product needs to be rotated manually. After the shell segment (especially the thin-walled shell segment) is deformed, it is difficult for the operator to rotate the product on the trolley.

[0009] (4) When the operator rotates the product, the trolley is difficult to fix and will move under the force applied by the operator. It is necessary to readjust the relative position of the trolley with respect to the X-ray generator, imaging plate and its actuator.

[0010] In summary, in order to solve the current problems of high manual operation intensity and low efficiency in tank weld inspection, adapt to the needs of high-density launch missions, and improve the tank weld inspection capability and efficiency, it is necessary to carry out application research on digital X-ray inspection capabilities and develop an automated and digital inspection system. Summary of the invention

[0011] In order to improve the digital radiographic detection capability and detection efficiency of tank shell section welds, an automated X-ray detection device suitable for the longitudinal welds of cylindrical components is provided to replace the traditional manual film radiography method, realize fully automatic digital radiographic detection of shell section welds, greatly improve the digitization, automation and intelligence of the detection process, and collect digital images of radiographic detection at each weld position in real time, and can meet the detection sensitivity requirements.

[0012] The technical solution provided by the present invention is as follows:

[0013] An automated X-ray detection device suitable for longitudinal welds of cylindrical components, comprising an imaging plate vertical lifting mechanism, an imaging plate telescopic mechanism, an imaging plate, an X-ray generator, an X-ray generator vertical lifting mechanism, an automatic rotating platform and a leveling mechanism;

[0014] The automatic rotary platform, the imaging plate vertical lifting mechanism and the X-ray generator vertical lifting mechanism are leveled and fixed on the foundation through anchor bolts and leveling washers;

[0015] The automatic rotary platform is a hollow structure, and a leveling mechanism is arranged circumferentially on the upper support surface. The leveling mechanism supports and levels the shell segment product so that the longitudinal weld is parallel to the lifting path of the imaging plate and the X-ray generator; the automatic rotary platform drives the shell segment product to rotate so that the longitudinal weld, the imaging plate and the X-ray generator are aligned;

[0016] The imaging plate vertical lifting mechanism and the X-ray generator vertical lifting mechanism are located on both sides of the shell segment product; the imaging plate telescopic mechanism is fixed on the imaging plate vertical lifting mechanism, and the imaging plate telescopic mechanism fixes the imaging plate close to the end of the shell segment product. The imaging plate vertical lifting mechanism drives the imaging plate to move up and down, so that the height of the imaging plate matches the height of the X-ray generator; the imaging plate telescopic mechanism drives the imaging plate to move horizontally to adjust the distance from the shell segment product;

[0017] The X-ray generator is installed at the upper end of the X-ray generator vertical lifting mechanism, which drives the X-ray generator 5 to move up and down to implement the full-section detection of the longitudinal weld.

[0018] An automated X-ray detection device for longitudinal welds of cylindrical components provided by the present invention has the following beneficial effects:

[0019] (1) The present invention provides an automated X-ray inspection device suitable for longitudinal welds of cylindrical components. The device adopts a vertical positioning inspection method, which can effectively avoid structural deformation of the tank due to its own weight. The imaging plate vertical lifting mechanism and the X-ray generator vertical lifting mechanism are cleverly utilized. The motor drives the slide table to realize synchronous lifting of the imaging plate and the X-ray generator, thereby realizing vertical lifting, loading and unloading operations of the tank shell in a limited space, and meeting the requirements for high-quality weld inspection.

[0020] (2) The present invention provides an automated X-ray inspection device suitable for longitudinal welds of cylindrical components. The automatic rotating platform, the imaging plate vertical lifting mechanism and the X-ray generator vertical lifting mechanism are fixed to the foundation by means of anchor bolts and leveling washers. At the same time, a leveling mechanism is installed circumferentially on the hollow rotating platform to achieve vertical leveling of the rotating platform at multiple points along the circumference, which is beneficial to ensure that the imaging plate and the X-ray generator are aligned and the scanning path of the X-ray generator is the same as the longitudinal weld.

[0021] (3) The present invention provides an automated X-ray inspection device suitable for longitudinal welds of cylindrical components. Through the matching of radial adjustment mechanisms and positioning scales, it is possible to support tank shell segments of different diameters without replacing tooling, thereby greatly reducing manpower and material resources and effectively improving inspection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the shell segment product and the longitudinal weld;

[0023] Figure 2A three-dimensional diagram of an automated X-ray inspection device for longitudinal welds of cylindrical components;

[0024] Figure 3 It is a side view of an automated X-ray inspection device suitable for longitudinal welds of cylindrical components;

[0025] Figure 4 It is a structural schematic diagram of the imaging plate vertical lifting mechanism;

[0026] Figure 5 It is a structural schematic diagram of the imaging plate telescopic mechanism;

[0027] Figure 6 It is a structural schematic diagram of the vertical lifting mechanism of the X-ray generator;

[0028] Figure 7 It is a structural schematic diagram of the automatic rotary platform;

[0029] Figure 8 The figure shows the cross-section (left half) and side view (right half) of the automatic rotary platform;

[0030] Fig. 9 It is a structural schematic diagram of the leveling mechanism;

[0031] Fig.10 It is a schematic diagram of the radial adjustment mechanism structure. DETAILED DESCRIPTION

[0032] The following detailed description of the present invention will make the features and advantages of the present invention more clear and explicit.

[0033] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0034] The present invention provides an automated X-ray inspection device suitable for the longitudinal welds of cylindrical components. In view of the difficulty in manually adjusting the shell segments that arise in the above-mentioned actual operation process, by summarizing the key links in the product welding, inspection, and circulation process, a system reconstruction plan using vertical overall inspection is proposed, that is, after the longitudinal seam welding of the shell segment is completed, it is vertically hoisted and transported to the inspection station, and the X-ray generator, imaging plate and its actuator are moved up and down in the vertical direction to ensure that the final positions of the X-ray generator and the imaging plate are consistent, thereby solving the technical problem that the shell segment product itself is greatly deformed and difficult to adjust and position. At the same time, the bottom surface of the shell segment is placed on a rotating platform, so that the operator can rotate the product, position the product, lock the product and perform other operations conveniently. In addition, through the newly manufactured shell segment longitudinal seam X-ray inspection system, it is compatible with products with various diameter specifications of Φ2m / Φ2.25m / Φ3m / Φ3.35m (see Figure 3), covering all the needs for detecting longitudinal seams of tank shell sections. The implementation of this solution will greatly improve the efficiency of X-ray detection of longitudinal seams of shell section products, replace the traditional manual film radiography method, reduce the labor intensity of workers, and realize fully automatic digital radiographic detection of shell section welds. It will greatly improve the digitization, automation and intelligence of the detection process, and collect digital images of radiographic detection at each weld position in real time, and can meet the detection sensitivity requirements and improve product detection quality.

[0035] The present invention provides an automated X-ray inspection device suitable for longitudinal welds of cylindrical components, such as Figure 2 and Figure 3 As shown, it includes: an imaging plate vertical lifting mechanism 2, an imaging plate telescopic mechanism 3, an imaging plate 4, an X-ray generator 5, an X-ray generator vertical lifting mechanism 6, an automatic rotating platform 8 and a leveling mechanism 9.

[0036] The automatic rotating platform 8, the imaging plate vertical lifting mechanism 2 and the X-ray generator vertical lifting mechanism 6 are basic components, which are leveled and fixed on the foundation 1 by anchor bolts and leveling washers. The remaining moving parts are installed on the basic components, and servo drive, data acquisition and feedback are realized through the control system.

[0037] In order to reduce the space requirement for longitudinal weld inspection, the automatic rotary platform 8 is placed in the automatic rotary platform sinking installation area opened on the foundation 1, forming a height difference with the installation of the imaging plate vertical lifting mechanism 2. The automatic rotary platform 8 is a hollow structure, and a leveling mechanism 9 is arranged circumferentially on the upper support surface. The leveling mechanism 9 supports and levels the shell segment product so that the longitudinal weld is parallel to the lifting path of the imaging plate 4 and the X-ray generator 5.

[0038] The imaging plate vertical lifting mechanism 2 and the X-ray generator vertical lifting mechanism 6 are located on both sides of the shell segment product; the imaging plate vertical lifting mechanism 2 is fixed with an imaging plate telescopic mechanism 3, and the imaging plate telescopic mechanism 3 is fixed with an imaging plate 4 near the end of the shell segment product, and the imaging plate vertical lifting mechanism 2 drives the imaging plate 4 to move up and down, so that the height of the imaging plate 4 matches the height of the X-ray generator 5; the imaging plate telescopic mechanism 3 drives the imaging plate to move horizontally to adjust the distance from the shell segment product. The X-ray generator 5 is installed on the upper end of the X-ray generator vertical lifting mechanism 6, which drives the X-ray generator 5 to move up and down to implement full-section detection of the longitudinal weld.

[0039] Since there may be multiple longitudinal welds on the shell segment product, in order to ensure that the imaging plate 4 and the X-ray generator 5 can always be centered at the multiple longitudinal welds, the X-ray generator vertical lifting mechanism 6 is coaxial with the rotation center of the automatic rotating platform 8, and the emission end of the X-ray generator 5 is aligned with the imaging plate. The X-ray generator automatically focuses on the shell segment products of different diameters (Φ2000 / Φ2250 / Φ3000 / Φ3350) by adjusting the focal length of the ray generator.

[0040] like Figure 4 As shown, the imaging plate vertical lifting mechanism 2 includes a first motor 21, a vertical base 22, an upper bearing seat 23, a first guide rail slider mechanism 24, a lateral connecting plate 25, a first lead screw 26 and a lower bearing seat 27.

[0041] The first motor 21 is connected to the upper end surface of the vertical base 22 by bolts, the output shaft of the first motor 21 is connected to the first lead screw 26, the first lead screw 26 is fixed to the side of the vertical base 22 by the upper bearing seat 23 and the lower bearing seat 27, the first guide rail slider mechanism 24 is fixed to the side of the vertical base 22 by bolts, and the two guide rails are located on both sides of the first lead screw 26, and the slider of the first guide rail slider mechanism 24 and the nut of the first lead screw 26 are connected to the imaging plate telescopic mechanism 3. When working, the first motor 21 drives the first lead screw 26 to rotate, and drives the nut and the first guide rail slider mechanism 24 to drive the imaging plate telescopic mechanism 3 to move up and down.

[0042] like Figure 5 As shown, the imaging plate telescopic mechanism 3 includes a second guide rail slider mechanism 31 , a rack 32 , a driving gear 33 , a telescopic base 34 and a second motor 35 .

[0043] The second guide rail slider mechanism 31 includes a lateral guide rail and a horizontal guide rail, which are respectively connected to the side and bottom of the telescopic base 34 through sliders, and an imaging plate is fixed to one end of the telescopic base 34; the rack 32 is connected to the side of the telescopic base 34 through bolts, and the rack 32 is meshed with the driving gear 33, and the driving gear 33 is connected to the output shaft of the second motor 35 by screws, and the second motor 35 is connected to the vertical base 22 through bolts. When working, the second motor 35 rotates the driving gear 33, thereby driving the rack 32, the slider on the second guide rail slider mechanism 31, and the telescopic base 34 to realize horizontal telescopic movement along the guide rail.

[0044] like Figure 6 As shown, the vertical lifting mechanism 6 of the ray generator includes a ray generator lifting rod 61, a cable bundling track 62 and a track support frame 63; the ray generator lifting rod 61 and the track support frame 63 are fixed to the foundation 1 by anchor bolts and leveling washers; the ray generator lifting rod 61 is a multi-stage lifting mechanism, and the X-ray generator 5 is fixed at the top; the cables of the X-ray generator 5 are centrally fixed in the cable bundling track 62, and the two ends of the cable bundling track 62 are respectively fixed at the cable outlet of the X-ray generator 5 and the track support frame 63, forming a smooth transition between the ray generator lifting rod 61 and the track support frame 63 without flipping. The cable of the X-ray generator 5 is slightly brittle and not resistant to bending. The cable is constrained by the cable bundling track 62, and the cable is not prone to small-angle bending.

[0045] like Figure 7 and Figure 8As shown, the automatic rotating platform 8 includes a rotating platform 81, a rotating support 82, a driving gear 83, a motor support 84, a third motor 85 and a platform base 86; the rotating support 82 is a bearing with a driven gear hooped on the outer ring.

[0046] The slewing platform 81 is connected to the outer ring of the slewing support 82 by bolts, and the inner ring of the slewing support 82 is connected to the platform base 86 by bolts. The platform base 86 is fixed on the foundation 1 by anchor bolts and leveling washers; the third motor 85 is connected to the motor support 84 by bolts and is integrally installed on the side of the platform base 86, and the driving gear 83 is fixed on the motor shaft by screws. When working, the third motor 85 rotates and drives the driving gear 83, and the driving gear 83 meshes with the driven gear of the outer ring of the slewing support 82, driving the outer ring of the slewing support 82 to rotate, thereby driving the slewing platform 81 on the slewing support 82 to rotate around the central axis.

[0047] When the longitudinal seam is inspected, the shell segment is in a state where the upper and lower end faces are not trimmed after welding. Since most of the tank shell segment wall panels are thinned by chemical milling, there is chemical milling corrosion in the upper and lower end margin areas, resulting in uneven end faces. Therefore, vertical inspection requires high positioning and leveling on the automatic rotary platform 8. To solve the above problems, the automatic rotary platform 8 of the present invention is leveled by a leveling shim. At the same time, a hollow rotary platform is developed and a leveling mechanism adapted to install a lead screw is installed to achieve the leveling of the rotary platform at multiple points along the circumference.

[0048] like Fig. 9 As shown, the leveling mechanism 9 includes a positioning support seat 91, a rotating hand wheel 92, an axial limit block 93, a connecting plate 94, a second lead screw 95 and a baffle 96; the positioning support seat 91 is connected to the top end face of the second lead screw 95 by bolts, and the rotating hand wheel 92 cooperates with the external thread of the second lead screw 95 through an internal thread, and at the same time, the boss at the bottom of the rotating hand wheel 92 cooperates with the axial limit block 93 to realize rotation around the axis while the height of the rotating hand wheel remains unchanged and the height of the second lead screw 95 moves; the axial limit block 93 is connected to the connecting plate 94 by bolts to achieve fixation; the baffle 96 is connected to the lower end face of the second lead screw 95 by screws to achieve the axial limit of the second lead screw 95.

[0049] To further determine the accuracy of leveling, a cross laser level is used on the imaging plate vertical lifting mechanism 2 to automatically calibrate the accuracy of leveling. When the vertical cross laser line coincides with the longitudinal weld, the positioning is determined to be accurate and weld detection can begin.

[0050] There are differences in the diameters of different tank shell segments. The tank shell segment products with larger task requirements are Φ2000 / Φ2250 / Φ3000 / Φ3350. The current horizontal detection method requires the replacement of supporting tooling to realize the detection of welds of tank shell segments with different diameters, which is time-consuming, labor-intensive and inefficient. In order to solve the above problems, the vertical positioning detection method of the present invention designs a leveling mechanism. Through the matching of the radial adjustment mechanism and the positioning scale, the longitudinal weld detection of tank shell segments with different diameters can be realized without replacing the tooling, which greatly reduces manpower and material resources and effectively improves the detection efficiency.

[0051] like Fig.10 As shown, at least three groups of radial adjustment mechanisms are evenly distributed on the rotating platform 81 of the automatic rotating platform 8, and the proximal end and the distal end of each group of radial adjustment mechanisms are at an equal distance from the axis of the rotating platform; the radial adjustment mechanism includes a radially installed adjustment seat 811, and a radial groove 812 is arranged on the upper surface of the adjustment seat 811, and a long hole 813 is opened in the middle of the radial groove 812; the connecting plate 94 of the leveling mechanism 9 falls into the radial groove 812, and one end of the second lead screw 95 fixed with a baffle 96 passes through the long hole 813, and the connecting plate 94 slides along the radial groove 812 to drive the entire leveling mechanism 9 to adjust radially. Positioning scales 814 are installed on both sides of the radial groove 812, and the proximal end and the distal end of each group of positioning scales 814 are at an equal distance from the axis of the rotating platform. According to the scale of the positioning scale 814, the visual positioning of the leveling mechanism 9 and its upper shell segment product can be realized.

[0052] When inspecting the longitudinal weld, the shell segment product is placed vertically on the leveling mechanism of the automatic rotary platform (so that the product can be easily rotated around the axis), and the leveling mechanism and scale are used to ensure that the product is basically aligned with the rotary table. The X-ray generator and the imaging plate radial motion actuator are located inside and outside the product, respectively, so that the imaging plate has radial movement adjustment function and vertical lifting function, and can fully feedback the actual radial and axial position of the X-ray generator and the imaging plate relative to the Φ2000 / Φ2250 / Φ3000 / Φ3350 shell segment product. By controlling the imaging plate and the X-ray generator to align and automatically feed (synchronous or separate control mode), the DR system is used to complete the automatic transillumination test of the longitudinal weld of the shell segment.

[0053] The present invention has been described in detail above in conjunction with specific implementations and exemplary examples, but these descriptions cannot be understood as limiting the present invention. Those skilled in the art understand that, without departing from the spirit and scope of the present invention, a variety of equivalent substitutions, modifications or improvements may be made to the technical solution of the present invention and its implementation methods, all of which fall within the scope of the present invention. The scope of protection of the present invention shall be subject to the attached claims.

[0054] The contents not described in detail in the specification of the present invention belong to the common knowledge of those skilled in the art.

Claims

1. An automated X-ray inspection device for longitudinal welds of cylindrical components, characterized in that: It includes an imaging plate vertical lifting mechanism, an imaging plate telescopic mechanism, an imaging plate, an X-ray generator, an X-ray generator vertical lifting mechanism, an automatic rotating platform and a leveling mechanism; The automatic rotary platform, the imaging plate vertical lifting mechanism and the X-ray generator vertical lifting mechanism are leveled and fixed on the foundation through anchor bolts and leveling washers; The automatic rotary platform is a hollow structure, and a leveling mechanism is arranged circumferentially on the upper support surface. The leveling mechanism supports and levels the shell segment product so that the longitudinal weld is parallel to the lifting path of the imaging plate and the X-ray generator; the automatic rotary platform drives the shell segment product to rotate so that the longitudinal weld, the imaging plate and the X-ray generator are aligned; The imaging plate vertical lifting mechanism and the X-ray generator vertical lifting mechanism are located on both sides of the shell segment product; the imaging plate telescopic mechanism is fixed on the imaging plate vertical lifting mechanism, and the imaging plate telescopic mechanism fixes the imaging plate close to the end of the shell segment product. The imaging plate vertical lifting mechanism drives the imaging plate to move up and down, so that the height of the imaging plate matches the height of the X-ray generator; the imaging plate telescopic mechanism drives the imaging plate to move horizontally to adjust the distance from the shell segment product; An X-ray generator is installed on the upper end of the X-ray generator vertical lifting mechanism, which drives the X-ray generator to move up and down to implement full-section detection of the longitudinal weld.

2. The automated X-ray inspection device for longitudinal welds of cylindrical components according to claim 1, characterized in that: The imaging plate vertical lifting mechanism comprises a first motor, a vertical base, an upper bearing seat, a first guide rail slider mechanism, a lateral connecting plate, a first lead screw and a lower bearing seat; The first motor is connected to the upper end surface of the vertical base by bolts, the output shaft of the first motor is connected to the first lead screw, the first lead screw is fixed to the side of the vertical base by an upper bearing seat and a lower bearing seat, the first guide rail slider mechanism is fixed to the side of the vertical base by bolts and the two guide rails are located on both sides of the first lead screw, the slider of the first guide rail slider mechanism and the nut of the first lead screw are connected to the imaging plate telescopic mechanism; when working, the first motor drives the first lead screw to rotate, and drives the nut and the first guide rail slider mechanism to drive the imaging plate telescopic mechanism to move up and down.

3. The automated X-ray inspection device for longitudinal welds of cylindrical components according to claim 1, characterized in that: The imaging plate telescopic mechanism comprises a second guide rail slider mechanism, a rack, a driving gear, a telescopic base and a second motor; The second guide rail slider mechanism includes a lateral guide rail and a horizontal guide rail, which are respectively connected to the side and bottom of the telescopic base through sliders, and an imaging plate is fixed to one end of the telescopic base; the rack is connected to the side of the telescopic base through bolts, the rack is meshed with the driving gear, the driving gear is connected to the output shaft of the second motor with screws, and the second motor is connected to the vertical base through bolts; when working, the second motor rotates the driving gear, driving the rack, the slider on the second guide rail slider mechanism, and the telescopic base to realize horizontal telescopic movement along the guide rail.

4. The automated X-ray inspection device for longitudinal welds of cylindrical components according to claim 1, characterized in that: The vertical lifting mechanism of the ray generator includes a ray generator lifting rod, a cable bundling track and a track support frame; the ray generator lifting rod and the track support frame are fixed to the foundation by anchor bolts and leveling washers; the ray generator lifting rod is a multi-stage lifting mechanism, and the X-ray generator is fixed at the top; the cables of the X-ray generator are centrally fixed in the cable bundling track, and the two ends of the cable bundling track are respectively fixed at the cable outlet of the X-ray generator and the track support frame, forming a smooth transition between the ray generator lifting rod and the track support frame without flipping.

5. The automated X-ray inspection device for longitudinal welds of cylindrical components according to claim 1, characterized in that: The X-ray generator vertical lifting mechanism is coaxial with the rotation center of the automatic rotating platform.

6. The automated X-ray inspection device for longitudinal welds of cylindrical components according to claim 1, characterized in that: The automatic slewing platform comprises a slewing platform, a slewing support, a driving gear, a motor support, a third motor and a platform base; the slewing support is a bearing with a driven gear hooped on the outer ring; The slewing platform is connected to the outer ring of the slewing support by bolts, the inner ring of the slewing support is connected to the platform base by bolts, and the platform base is fixed to the foundation by anchor bolts and leveling washers; the third motor is connected to the motor support by bolts and is installed as a whole on the side of the platform base, and the driving gear is fixed on the motor shaft with screws; when working, the third motor rotates to drive the driving gear, and the driving gear is meshed with the driven gear of the outer ring of the slewing support, driving the outer ring of the slewing support to rotate, and driving the slewing platform on the slewing support to rotate around the central axis.

7. The automated X-ray inspection device for longitudinal welds of cylindrical components according to claim 1, characterized in that: The automatic rotating platform is placed in an automatic rotating platform sinking installation area opened on the foundation, forming a height difference with the installation of the imaging plate vertical lifting mechanism.

8. The automated X-ray inspection device for longitudinal welds of cylindrical components according to claim 1, characterized in that: The leveling mechanism comprises a positioning support seat, a rotating hand wheel, an axial limit block, a connecting plate, a second lead screw and a baffle; The positioning support seat is connected to the top end face of the second lead screw by bolts, and the rotating handwheel cooperates with the external thread of the second lead screw through the internal thread. At the same time, the boss at the bottom of the rotating handwheel cooperates with the axial limit block to realize rotation around the axis while the height of the rotating handwheel remains unchanged and the height of the second lead screw moves; the axial limit block is connected to the connecting plate by bolts to achieve fixation; the baffle is connected to the lower end face of the second lead screw by screws to implement the axial limit of the second lead screw.

9. The automated X-ray inspection device for longitudinal welds of cylindrical components according to claim 8, characterized in that: At least three groups of radial adjustment mechanisms are evenly distributed on the rotating platform of the automatic rotating platform, and the proximal end and the distal end of each group of radial adjustment mechanisms are at equal distances from the axis of the rotating platform; The radial adjustment mechanism includes a radially installed adjustment seat, a radial groove is arranged on the upper surface of the adjustment seat, and a long hole is opened in the middle of the radial groove; the connecting plate of the leveling mechanism falls into the radial groove, and one end of the second lead screw fixed with a baffle passes through the long hole, and the connecting plate slides along the radial groove to drive the entire leveling mechanism to adjust radially.

10. The automated X-ray inspection device for longitudinal welds of cylindrical components according to claim 9, characterized in that: Positioning scales are installed on both sides of the radial groove, and the proximal end and the distal end of each group of positioning scales are at the same distance from the axis of the rotary platform.

Images