A matching device of a pipeline detection tool

Abstract

This invention relates to the field of pipeline inspection tooling processing, and discloses a supporting device for pipeline inspection tooling, including a table, a stand, a lifting mechanism, and a welding mechanism. The welding mechanism includes a strip plate and a side plate. The bottom of the side wall facing the strip plate is connected to the strip plate via a hinge. An assembly block is installed on the bottom of the outer wall of the side plate, and a first welding torch is fixedly installed on the assembly block. Several second welding torches are installed on the bottom of the strip plate. The lifting mechanism of this invention can effectively and stably adjust the height of the welding mechanism, ensuring that the first and second welding torches on the welding mechanism can be effectively adjusted in height according to the specifications of the accessories on the welding table. Furthermore, the angle between the side plate where the first welding torch is installed and the strip plate where the second welding torch is installed can be adjusted, thereby adjusting the distance between the first and second welding torches and the tilt angle of the first welding torch, thus adapting to accessories of different shapes and specifications.

Description

Technical Field

[0001] This invention relates to the field of pipeline inspection tooling processing, and more specifically, to a supporting device for pipeline inspection tooling. Background Technology

[0002] Pipeline inspection fixtures are equipment used to periodically inspect the wear and tear on the exterior of pipelines. These devices are designed to detect scratches on in-use pipelines to determine if replacement is necessary. Various equipment is used in the production and assembly of pipeline inspection fixtures, with welding equipment being an essential component. Existing welding equipment can achieve complex angle welding via robotic arms connected to automatic control systems. However, the pipelines that pipeline inspection fixtures are designed for are generally cylindrical. Therefore, welding of the fixtures requires various types, lengths, and specifications of accessories. Welding with a robotic arm equipped with only a single welding torch requires frequent adjustments to the arm's welding trajectory, and a single welding torch can only weld one point at a time, resulting in relatively low welding efficiency. Simultaneous welding of multiple points requires multiple robotic arms, increasing costs. Replacing the robotic arms with conventional mounting brackets for quick and easy adjustment of the welding torch requires individual machine shutdowns, further increasing working hours.

[0003] No effective solutions have yet been proposed to address the problems in the relevant technologies. Summary of the Invention

[0004] The purpose of this invention is to provide a matching device for pipeline inspection fixtures to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A supporting device for a pipeline inspection fixture includes a table, a support frame mounted on one side of the table, a lifting mechanism fixedly mounted on the top of the support frame facing upwards from the table, a welding mechanism mounted on the bottom of the lifting mechanism, a welding table on the top of the table, an assembly groove on the top of the welding table, a pulley rotatably mounted in the assembly groove, and the top of the pulley protruding from the top wall of the welding table; the lifting mechanism includes an extension plate mounted on the top of the outer side of the support frame, a lifting cylinder mounted on the top of the extension plate, a lifting plate mounted on the output shaft end of the lifting cylinder, a connecting frame mounted on the bottom of the lifting plate, and the welding mechanism mounted on the bottom of the connecting frame; the welding mechanism includes a horizontally arranged strip plate, side plates on both sides of the top of the strip plate, the bottom of the side plate facing the strip plate being connected to the strip plate by a hinge, a plurality of assembly blocks mounted on the bottom of the outer wall of the side plate away from the strip plate, a first welding gun fixedly mounted on the assembly block, and a plurality of second welding guns mounted on the bottom of the strip plate.

[0006] Furthermore, support legs are installed at the bottom of the table near both ends, a side beam is installed on one side of the outer wall between the two support legs, the upright is installed on the top of the side beam, a first slide rail is installed on the top of the table, and a first slide block is installed at the bottom of the welding table, with the first slide block slidably mounted on the first slide rail.

[0007] Furthermore, a vertical plate is fixedly installed at the bottom of the tabletop between two support legs, and a lead screw is rotatably installed between the two vertical plates. The lead screw is arranged along the length of the first slide rail. A hanger is fixedly installed at the bottom of the welding table, and a threaded sleeve is fixedly installed at the bottom end of the hanger. A strip hole is opened in the center of the tabletop, and the bottom of the hanger passes through the strip hole. The threaded sleeve is screwed to the outside of the lead screw. A side frame is fixedly installed on the outer wall of the vertical plate on either side, and a motor is installed on the outside of the side frame. The output shaft end of the motor is fixedly connected to the end of the lead screw through a coupling.

[0008] Furthermore, guide rods are fixedly installed at the four top corners of the lifting plate, guide sleeves are installed through the four corners of the extension plate, and the top of the guide rods is installed through the guide sleeves.

[0009] Furthermore, the bottom of the connecting frame is mounted on the strip plate, and a lifting cylinder is mounted on the top of the strip plate. An adjusting rod is mounted on the output shaft end of the lifting cylinder. The adjusting rod is parallel to the strip plate, and both ends of the adjusting rod pass through the connecting frame. Assembly seats are mounted on both ends of the adjusting rod. Connecting rods facing the side plates are hinged to the top of the assembly seats. First hinge seats are symmetrically mounted along the center on the side wall of the side plate facing the strip plate. The end of the connecting rod away from the assembly seat is connected to the adjacent first hinge seat.

[0010] Furthermore, an clearance opening is provided in the middle of the side wall of the lifting plate near the side plate, a sliding hole is provided on the connecting frame, the adjusting rod is provided through the sliding hole, and a slider is also installed on the outer wall of the adjusting rod. The end of the slider away from the adjusting rod is slidably connected to the inner wall of the sliding hole.

[0011] Furthermore, a second slide rail is fixedly installed on the bottom of the outer wall of the side plate away from the strip plate, and a second slide block is installed on the outer wall of the assembly block, with the second slide block slidably disposed on the second slide rail.

[0012] Furthermore, an adjustment plate is provided on the side of the side plate away from the strip plate. A third slide block is fixedly installed at both ends of the side plate facing the side plate. A third slide rail is symmetrically installed along the center on the side of the side plate away from the strip plate. The third slide block is slidably installed on the third slide rail. A plurality of adjustment holes are symmetrically opened along the center on the adjustment plate. The adjustment holes are arranged in a radiating pattern on the adjustment plate. The number of adjustment holes is equal to the number of assembly blocks and is set one-to-one. An extension arm is fixedly installed on the top of the assembly block. The top of the extension arm is located between the side plate and the adjustment plate. A guide wheel is rotatably installed on the outer wall of the extension arm facing the adjustment plate. The guide wheel is slidably located in the adjustment hole.

[0013] Furthermore, a fixing seat is installed on the top of the side plate, and an adjusting cylinder is installed on the side wall of the fixing seat facing the adjusting plate. A connecting block is installed on the top of the adjusting plate, and the output shaft end of the adjusting cylinder is fixedly installed on the connecting block.

[0014] Furthermore, a fourth slide rail is installed at the bottom of the strip plate, and a plurality of fourth slide blocks are slidably installed on the fourth slide rail. A connecting seat is installed at the bottom of the fourth slide block. The second welding gun is fixedly installed at the bottom of the second welding gun. A second hinge seat is installed on the outer wall of the connecting seat facing the side plate. A third hinge seat is installed on the outer wall of the assembly block facing the strip plate. The second hinge seat and the third hinge seat, which are arranged opposite to each other, are connected by a telescopic rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The welding table of this invention can move horizontally on the tabletop, thereby changing the relative position between the components and the welding mechanism on the welding table, adjusting the welding points on the components, and improving adaptability. Then, the height of the welding mechanism can be changed by the lifting mechanism to carry out the welding operation. The assembly slot opened on the welding table and the pulley installed inside it can facilitate the loading and unloading of components on the welding table and reduce the friction between the welding table and the components.

[0016] The lifting mechanism provided in this invention can effectively and stably adjust the height of the welding mechanism, ensuring that the first and second welding torches on the welding mechanism can be effectively adjusted in height according to the specifications of the accessories on the welding table. Furthermore, the angle between the side plate on which the first welding torch is installed and the strip plate on which the second welding torch is installed can be adjusted, thereby adjusting the distance between the first and second welding torches and the tilt angle of the first welding torch. This allows for adaptation to accessories of different shapes and specifications, improving adaptability.

[0017] The adjustment plate of this invention adjusts the spacing of the assembly blocks through the adjustment holes provided thereon, thereby changing the spacing between the first welding guns to accommodate accessories of different lengths. When the spacing of the first welding guns changes, the assembly blocks can also drive the connecting seat to move synchronously through the telescopic rod, thereby synchronously changing the position of the second welding gun, thus achieving synchronous adjustment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of a supporting device for a pipeline inspection tool according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the top structure of the table in a supporting device for a pipeline inspection tool according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the bottom structure of the table in a supporting device for a pipeline inspection tool according to an embodiment of the present invention. Figure 4 This is a schematic diagram of the welding table in a supporting device of a pipeline inspection tool according to an embodiment of the present invention; Figure 5 This is an assembly diagram of the lifting mechanism and welding mechanism in a supporting device for a pipeline inspection tool according to an embodiment of the present invention. Figure 6 This is a schematic diagram of the lifting mechanism in a supporting device for a pipeline inspection tool according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the welding mechanism in a supporting device for a pipeline inspection tool according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the side plate in a supporting device of a pipeline inspection tool according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the strip plate in a supporting device of a pipeline inspection tool according to an embodiment of the present invention; Figure 10 This is a schematic diagram of the outer wall structure of the side plate in a supporting device of a pipeline inspection tool according to an embodiment of the present invention. Figure 11 This is a schematic diagram of the structure of an assembly block in a supporting device for a pipeline inspection tool according to an embodiment of the present invention; Figure 12This is a schematic diagram of the structure of the adjusting plate in a supporting device of a pipeline inspection tool according to an embodiment of the present invention; Figure 13 This is a schematic diagram of the bottom structure of the strip plate in a supporting device of a pipeline inspection tool according to an embodiment of the present invention; Figure 14 This is a schematic diagram of the assembly of the second welding torch in a supporting device of a pipeline inspection tool according to an embodiment of the present invention.

[0020] Figure label: 1. Tabletop; 2. Stand; 3. Lifting mechanism; 31. Extension plate; 32. Lifting cylinder; 33. Lifting plate; 34. Guide sleeve; 35. Guide rod; 36. Connecting frame; 37. Clearance opening; 38. Sliding hole; 4. Welding Mechanism; 401. Strip Plate; 402. Side Plate; 403. Assembly Block; 404. First Welding Gun; 405. Hinge; 406. Second Welding Gun; 407. Lifting Cylinder; 408. Adjusting Rod; 409. Assembly Seat; 410. Connecting Rod; 411. First Hinge Seat; 412. Slider; 413. Second Slide Rail; 414. Second Slide Block; 415. Adjusting Plate; 416. Third Slide Block; 417. Third Slide Rail; 418. Adjusting Hole; 419. Extension Arm; 420. Guide Wheel; 421. Fixed Seat; 422. Adjusting Cylinder; 423. Connecting Block; 424. Fourth Slide Rail; 425. Fourth Slide Block; 426. Connecting Seat; 427. Second Hinge Seat; 428. Third Hinge Seat; 429. Telescopic Rod; 5. Welding table; 6. Support leg plate; 7. Side beam; 8. First slide rail; 9. First slide block; 10. Assembly slot; 11. Pulley; 12. Vertical plate; 13. Lead screw; 14. Hanger; 15. Screw sleeve; 16. Strip hole; 17. Side frame; 18. Motor. Detailed Implementation

[0021] The invention will now be further described with reference to the accompanying drawings and specific embodiments: Example 1: Please refer to Figures 1 to 4 According to an embodiment of the present invention, a supporting device for a pipeline inspection fixture includes a table 1, a support frame 2 fixedly installed on one side of the table 1, a lifting mechanism 3 fixedly installed on the top of the side of the support frame 2 facing upwards from the table 1, a welding mechanism 4 installed at the bottom of the lifting mechanism 3, and a welding table 5 provided on the top of the table 1, located below the welding mechanism 4. The inspection fixture components are placed on the welding table 5, and the height of the welding mechanism 4 is changed by the lifting mechanism 3, thereby allowing the welding mechanism 4 to perform welding operations on the components on the welding table 5.

[0022] Support legs 6 are fixedly installed at the bottom of the tabletop 1 near both ends. A side beam 7 is fixedly installed on one outer wall between the two support legs 6. The upright frame 2 is fixedly installed on the top of the side beam 7. A first slide rail 8 is symmetrically installed on the top of the tabletop 1 along its center. The first slide rail 8 is set along the length of the tabletop 1. A first slide block 9 is symmetrically installed on the bottom of the welding table 5 along its center. The first slide block 9 is slidably installed on the first slide rail 8. The welding table 5 can be moved on the first slide rail 8 via the first slide block 9, thereby adjusting the accessories on the welding table 5 and changing the welding point as needed.

[0023] The top of the welding table 5 is provided with several assembly slots 10, and pulleys 11 are rotatably installed in the assembly slots 10, with the top of the pulleys 11 protruding from the top wall of the welding table 5. The pulleys 11 allow for easy loading and unloading of parts on the welding table 5, avoiding friction between the parts and the top wall of the welding table 5 during loading and unloading.

[0024] A vertical plate 12 is fixedly installed at the bottom of the tabletop 1 between two support legs 6. A lead screw 13 is rotatably installed between the two vertical plates 12, and the lead screw 13 is set along the length of the first slide rail 8. A hanger 14 is fixedly installed at the bottom of the welding table 5, and a threaded sleeve 15 is fixedly installed at the bottom end of the hanger 14. A strip-shaped hole 16 is opened in the center of the tabletop 1, which is set along the length of the first slide rail 8. The bottom of the hanger 14 is set through the strip-shaped hole 16, and the threaded sleeve 15 is screwed to the outside of the lead screw 13. By rotating the lead screw 13, the lead screw 13 can drive the hanger 14 to move through the threaded sleeve 15, and the hanger 14 can adjust the position of the welding table 5.

[0025] A side frame 17 is fixedly installed on the outer wall of the vertical plate 12 on either side. A motor 18 is fixedly installed on the outside of the side frame 17. The output shaft end of the motor 18 is fixedly connected to the end of the lead screw 13 through a coupling. By starting the motor 18, the lead screw 13 can be rotated and adjusted using different directions of the motor 18, thereby adjusting the position of the welding table 5 on the table plate 1.

[0026] Through the above-described solution of the present invention, the welding table 5 provided by the present invention can move horizontally on the table 1, thereby changing the relative position between the accessories and the welding mechanism 4 on the welding table 5, adjusting the welding points on the accessories, improving adaptability, and then changing the height of the welding mechanism 4 by the lifting mechanism 3 to carry out the welding operation. In addition, the assembly groove 10 opened on the welding table 5 and the pulley 11 installed inside it can facilitate the loading and unloading of accessories on the welding table 5, reducing the friction between the welding table 5 and the accessories.

[0027] Example 2: Please refer to Figures 5 to 6In embodiment one, the lifting mechanism 3 includes an extension plate 31 fixedly installed on the top of the outer side of the upright 2. A lifting cylinder 32 is fixedly installed on the top of the extension plate 31. The output shaft end of the lifting cylinder 32 passes through the extension plate 31, and a lifting plate 33 is fixedly installed on the output shaft end of the lifting cylinder 32. A connecting frame 36 is symmetrically installed along the center of the bottom of the lifting plate 33, and a welding mechanism 4 is fixedly installed on the bottom of the connecting frame 36. When the lifting cylinder 32 is activated, the height of the lifting plate 33 can be adjusted. The lifting plate 33 then adjusts the height of the welding mechanism 4 at its bottom through the connecting frame 36, thereby adapting to the workpiece on the welding table 5.

[0028] Guide rods 35 are fixedly installed at the four top corners of the lifting plate 33, and guide sleeves 34 are installed through the four corners of the extension plate 31. The top of the guide rods 35 passes through the guide sleeves 34. The arrangement of the guide rods 35 and guide sleeves 34 can ensure the stability of the lifting plate 33 when it is raised or lowered.

[0029] like Figures 7 to 9 As shown, the welding mechanism 4 includes a horizontally arranged strip plate 401. Side plates 402 are provided on both sides of the top of the strip plate 401. The bottom of the side wall of the side plate 402 facing the strip plate 401 is connected to the strip plate 401 via hinges 405. Several assembly blocks 403 are installed on the bottom of the outer wall of the side plate 402 away from the strip plate 401. A first welding gun 404 is fixedly installed on the assembly block 403. Several second welding guns 406 are installed on the bottom of the strip plate 401. The first welding gun 404 can weld the component welding points in the centerline area of ​​the welding table 5, while the second welding guns 406 can weld the component welding points in the side area of ​​the welding table 5. Furthermore, the side plate 402 can change its tilt angle with the strip plate 401, thereby changing the distance between the second welding gun 406 and the first welding gun 404, and changing the tilt angle of the second welding gun 406 to adapt to welding operations on components of different shapes.

[0030] The bottom of the connecting frame 36 is fixedly installed on the strip plate 401. A lifting cylinder 407 located between two strip plates 401 is fixedly installed at the top center of the strip plate 401. An adjusting rod 408 is fixedly installed at the end of the output shaft of the lifting cylinder 407. The adjusting rod 408 is arranged along the length direction of the strip plate 401 and is parallel to the strip plate 401. Both ends of the adjusting rod 408 pass through the connecting frame 36. Assembly seats 409 are fixedly installed at both ends of the adjusting rod 408. A connecting rod 410 facing the two side plates 402 is hingedly installed at the top of the assembly seat 409. A first hinge seat 411 is fixedly fixedly installed symmetrically along the center on one side wall of the side plate 402 facing the strip plate 401. The end of the connecting rod 410 away from the assembly seat 409 is connected to the adjacent first hinge seat 411. When the lifting cylinder 407 is activated, the height of the adjusting rod 408 is adjusted. The adjusting rod 408 then adjusts the end of the connecting rod 410 through the mounting seats 409 at both ends. When the end of the connecting rod 410 that is hinged to the mounting seat 409 moves, the tilt angle of the side plate 402 is adjusted through the first hinge seat 411 connected to the other end.

[0031] A clearance opening 37 is provided in the middle of the side wall of the lifting plate 33 near the side plate 402. The clearance opening 37 can provide clearance space for the top center area of ​​the side plate 402 when the tilt angle of the side plate 402 is changed.

[0032] The connecting frame 36 has a sliding hole 38 through which the adjusting rod 408 passes. A slider 412 is also fixedly installed on the outer wall of the adjusting rod 408. The end of the slider 412 away from the adjusting rod 408 is slidably connected to the inner wall of the sliding hole 38. The slider 412 and the sliding hole 38 make the adjusting rod 408 more stable when it is raised and lowered.

[0033] Through the above-described solution of the present invention, the lifting mechanism 3 provided by the present invention can effectively and stably adjust the height of the welding mechanism 4, ensuring that the first welding gun 404 and the second welding gun 406 provided on the welding mechanism 4 can be effectively adjusted in height according to the specifications of the accessories on the welding table 5, and the angle between the side plate 402 on which the first welding gun 404 is installed and the strip plate 401 on which the second welding gun 406 is installed can be adjusted, thereby adjusting the distance between the first welding gun 404 and the second welding gun 406, as well as the tilt angle of the first welding gun 404, so as to adapt to accessories of different shapes and specifications and improve adaptability.

[0034] Example 3: Please refer to Figures 10 to 14In Embodiments 1 and 2, a second slide rail 413 is fixedly installed on the bottom of the outer wall of the side plate 402 away from the strip plate 401. The second slide rail 413 is arranged along the length direction of the strip plate 401. A second slide block 414 is fixedly installed on the outer wall of the assembly block 403, and the second slide block 414 is slidably disposed on the second slide rail 413. With this arrangement, the spacing between the assembly blocks 403 on the second slide rail 413 can be changed, thereby adjusting the distance between the first welding guns 404 on the same side plate 402. This can be adapted to the length and dimensions of the accessories during actual welding.

[0035] An adjusting plate 415 is provided on the side of the side plate 402 away from the strip plate 401. A third slide block 416 is fixedly installed at both ends of the side of the adjusting plate 415 facing the side plate 402. A third slide rail 417 is symmetrically installed along the center on the side of the side plate 402 away from the strip plate 401. The third slide block 416 is slidably installed on the third slide rail 417. A number of adjusting holes 418 are symmetrically opened along the center on the adjusting plate 415. The adjusting holes 418 are arranged in a radiating pattern on the adjusting plate 415. The number of adjusting holes 418 is equal to the number of assembly blocks 403 and is set one-to-one. An extension arm 419 is fixedly installed on the top of the assembly block 403. The top of the extension arm 419 is located between the side plate 402 and the adjusting plate 415. A guide wheel 420 is rotatably installed on the outer wall of the side of the extension arm 419 facing the adjusting plate 415. The guide wheel 420 is slidably installed in the adjusting hole 418. By changing the position of the adjustment plate 415 on the side plate 402, the movement of the adjustment plate 415 can be adjusted synchronously with the guide wheel 420 inside it through the adjustment hole 418. The movement of the guide wheel 420 will drive the assembly block 403 to move horizontally through the extension arm 419, thereby adjusting the spacing of the second welding gun 406.

[0036] A fixed base 421 is fixedly installed at the top center of the side plate 402. An adjusting cylinder 422 is installed on the side wall of the fixed base 421 facing the adjusting plate 415. A connecting block 423 is fixedly installed at the top center of the adjusting plate 415. The output shaft end of the adjusting cylinder 422 is fixedly installed on the connecting block 423. When the adjusting cylinder 422 is activated, it can drive the adjusting plate 415 to move up and down through the connecting block 423.

[0037] A fourth slide rail 424, extending along the length of the strip plate 401, is fixedly installed at the bottom. Several fourth slide blocks 425 are slidably mounted on the fourth slide rail 424. A connecting seat 426 is fixedly installed at the bottom of each fourth slide block 425. A second welding torch 406 is fixedly installed at its bottom. A second hinge seat 427 is fixedly installed on the outer wall of the connecting seat 426 facing the side plate 402. A third hinge seat 428 is fixedly installed on the outer wall of the assembly block 403 facing the strip plate 401. The opposing second hinge seats 427 and third hinge seats 428 are connected by a telescopic rod 429. When the assembly block 403 moves and adjusts the first welding torch 404, the assembly block 403 can also move the corresponding connecting seat 426 synchronously via the telescopic rod 429, thereby enabling the corresponding second welding torch 406 and the first welding torch 404 to adjust synchronously. This embodiment utilizes the telescopic rod 429 as a simple automatic telescopic rod with a sleeve for inserting a sleeve, so as to adapt to the automatic change when the angle of the side plate 402 relative to the strip plate 401 is adjusted.

[0038] Through the above-described solution of the present invention, the adjustment plate 415 of the present invention adjusts the spacing of the assembly blocks 403 through the adjustment holes 418 formed thereon, thereby changing the spacing between the first welding guns 404 to adapt to accessories of different length specifications. When the spacing of the first welding guns 404 changes, the assembly blocks 403 can also drive the connecting seat 426 to move synchronously through the telescopic rod 429, thereby synchronously changing the position of the second welding gun 406 to achieve synchronous adjustment.

[0039] To facilitate understanding of the above technical solutions of the present invention, the working principle or operation method of the present invention in actual process will be described in detail below.

[0040] The welding table 5 of this invention can move horizontally on the table 1, thereby changing the relative position between the parts on the welding table 5 and the welding mechanism 4, adjusting the welding points on the parts, improving adaptability, and then changing the height of the welding mechanism 4 by the lifting mechanism 3 to carry out the welding operation. In addition, the assembly groove 10 opened on the welding table 5 and the pulley 11 installed inside it can facilitate the loading and unloading of parts on the welding table 5 and reduce the friction between the welding table 5 and the parts.

[0041] The lifting mechanism 3 provided in this invention can effectively and stably adjust the height of the welding mechanism 4, ensuring that the first welding gun 404 and the second welding gun 406 installed on the welding mechanism 4 can be effectively adjusted in height according to the specifications of the accessories on the welding table 5. The angle between the side plate 402 on which the first welding gun 404 is installed and the strip plate 401 on which the second welding gun 406 is installed can be adjusted, thereby adjusting the distance between the first welding gun 404 and the second welding gun 406, as well as the tilt angle of the first welding gun 404. This allows for the adaptation to accessories of different shapes and specifications, improving adaptability.

[0042] The adjustment plate 415 of the present invention adjusts the spacing of the assembly blocks 403 through the adjustment holes 418 formed thereon, thereby changing the spacing between the first welding guns 404 to accommodate accessories of different lengths. When the spacing of the first welding guns 404 changes, the assembly blocks 403 can also drive the connecting seat 426 to move synchronously through the telescopic rod 429, thereby synchronously changing the position of the second welding gun 406 and realizing synchronous adjustment.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A supporting device for a pipeline inspection fixture, comprising a table (1), characterized in that, A support frame (2) is installed on one side of the table (1). A lifting mechanism (3) is fixedly installed on the top of the side of the support frame (2) facing the table (1). A welding mechanism (4) is installed at the bottom of the lifting mechanism (3). A welding table (5) is also provided on the top of the table (1). An assembly slot (10) is opened on the top of the welding table (5). A pulley (11) is rotatably installed in the assembly slot (10). The top of the pulley (11) protrudes from the top wall of the welding table (5). The lifting mechanism (3) includes an extension plate (31) installed on the top of the outside of the upright (2), a lifting cylinder (32) is installed on the top of the extension plate (31), a lifting plate (33) is installed at the end of the output shaft of the lifting cylinder (32), a connecting frame (36) is installed at the bottom of the lifting plate (33), and the welding mechanism (4) is installed at the bottom of the connecting frame (36). The welding mechanism (4) includes a horizontally arranged strip plate (401), with side plates (402) on both sides of the top of the strip plate (401). The bottom of the side wall of the side plate (402) facing the strip plate (401) is connected to the strip plate (401) by a hinge (405). Several assembly blocks (403) are installed on the bottom of the outer wall of the side plate (402) away from the strip plate (401). A first welding gun (404) is fixedly installed on the assembly block (403), and several second welding guns (406) are installed on the bottom of the strip plate (401). The bottom of the connecting frame (36) is mounted on the strip plate (401), and the top of the strip plate (401) is mounted with a lifting cylinder (407). An adjusting rod (408) is mounted on the output shaft end of the lifting cylinder (407). The adjusting rod (408) is parallel to the strip plate (401). Both ends of the adjusting rod (408) pass through the connecting frame (36). Both ends of the adjusting rod (408) are mounted with mounting seats (409). The top of the mounting seat (409) is hinged with a connecting rod (410) facing the two side plates (402). A first hinge seat (411) is symmetrically mounted on the side wall of the side plate (402) facing the strip plate (401). The end of the connecting rod (410) away from the mounting seat (409) is connected to the first hinge seat (411) that is close to it. An adjusting plate (415) is provided on the side of the side plate (402) away from the strip plate (401). Third slide blocks (416) are fixedly installed at both ends of the adjusting plate (415) facing the side plate (402). A third slide rail (417) is symmetrically installed along the center on the side of the side plate (402) away from the strip plate (401). The third slide blocks (416) are slidably installed on the third slide rail (417). Several adjusting holes (418) are symmetrically opened along the center on the adjusting plate (415). 418) The scattering device is opened on the adjustment plate (415). The number of adjustment holes (418) is equal to the number of assembly blocks (403) and they are set one by one. An extension arm (419) is fixedly installed on the top of the assembly block (403). The top of the extension arm (419) is located between the side plate (402) and the adjustment plate (415). A guide wheel (420) is rotatably installed on the outer wall of the side of the extension arm (419) facing the adjustment plate (415). The guide wheel (420) is slidably located in the adjustment hole (418). A fourth slide rail (424) is installed at the bottom of the strip plate (401), and a plurality of fourth slide blocks (425) are slidably installed on the fourth slide rail (424). A connecting seat (426) is installed at the bottom of the fourth slide block (425). The second welding gun (406) is fixedly installed at the bottom of the second welding gun (406). A second hinge seat (427) is installed on the outer wall of the connecting seat (426) facing the side plate (402). A third hinge seat (428) is installed on the outer wall of the assembly block (403) facing the strip plate (401). The second hinge seat (427) and the third hinge seat (428) are arranged opposite to each other. The second hinge seat (427) and the third hinge seat (428) are connected by a telescopic rod (429).

2. The accessory device for a pipeline inspection fixture according to claim 1, characterized in that, The bottom of the table (1) is fitted with support legs (6) near both ends. A side beam (7) is installed on one side of the outer wall between the two support legs (6). The upright frame (2) is installed on the top of the side beam (7). A first slide rail (8) is installed on the top of the table (1). A first slide block (9) is installed on the bottom of the welding table (5). The first slide block (9) is slidably installed on the first slide rail (8).

3. The accessory device for a pipeline inspection fixture according to claim 2, characterized in that, A vertical plate (12) is fixedly installed between two support plates (6) at the bottom of the table (1). A lead screw (13) is rotatably installed between the two vertical plates (12). The lead screw (13) is set along the length direction of the first slide rail (8). A hanger (14) is fixedly installed at the bottom of the welding table (5). A screw sleeve (15) is fixedly installed at the bottom end of the hanger (14). A strip hole (16) is opened in the center of the table (1). The bottom of the hanger (14) is set through the strip hole (16). The screw sleeve (15) is screwed to the outside of the lead screw (13). A side frame (17) is fixedly installed on the outer wall of the vertical plate (12) on either side. A motor (18) is installed on the outside of the side frame (17). The output shaft end of the motor (18) is fixedly connected to the end of the lead screw (13) through a coupling.

4. The accessory device for a pipeline inspection fixture according to claim 3, characterized in that, Guide rods (35) are fixedly installed at the four corners of the top of the lifting plate (33), and guide sleeves (34) are installed through the four corners of the extension plate (31). The top of the guide rods (35) is installed through the guide sleeves (34).

5. The accessory device for a pipeline inspection fixture according to claim 4, characterized in that, The lifting plate (33) has an opening (37) in the middle of the side wall near the side plate (402). The connecting frame (36) has a sliding hole (38). The adjusting rod (408) passes through the sliding hole (38). A slider (412) is also installed on the outer wall of the adjusting rod (408). The end of the slider (412) away from the adjusting rod (408) is slidably connected to the inner wall of the sliding hole (38).

6. The accessory device for a pipeline inspection fixture according to claim 5, characterized in that, A second slide rail (413) is fixedly installed on the bottom of the outer wall of the side plate (402) away from the strip plate (401), and a second slide block (414) is installed on the outer wall of the assembly block (403). The second slide block (414) is slidably disposed on the second slide rail (413).

7. The accessory device for a pipeline inspection fixture according to claim 6, characterized in that, A fixing seat (421) is installed on the top of the side plate (402). An adjusting cylinder (422) is installed on the side wall of the fixing seat (421) facing the adjusting plate (415). A connecting block (423) is installed on the top of the adjusting plate (415). The output shaft end of the adjusting cylinder (422) is fixedly installed on the connecting block (423).

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