A jig for assembling and processing flue shells

Abstract

This invention discloses a flue shell assembly and processing fixture, relating to the field of flue shell processing technology. It includes a base box and a feeding component. An installation frame is fixedly provided at the upper end of the base box, and several rotating rollers are provided inside the installation frame. The feeding component is positioned above the base plate, and a limiting component is provided at the upper end of the installation frame. A lifting mechanism is provided inside the base box. The limiting component allows for positioning and feeding of the flue shell. The feeding component at the end of the base box facilitates the positioning and clamping of angle iron flanges. A chain conveyor allows the support frame to push the flue shell upwards during the feeding process, achieving clamping and concentric positioning. Several detachable clamping tubes allow for the positioning and clamping of circular and rectangular flanges, enabling the assembly and processing of flues of different shapes.

Description

Technical Field

[0001] This invention relates to the field of flue shell processing technology, specifically a flue shell assembly and processing fixture. Background Technology

[0002] In the field of industrial boiler energy-saving technology, the air preheater flue gas waste heat recovery system has been widely used. This system improves the overall thermal efficiency of the boiler by recovering waste heat from the flue gas. In actual operation, flue gas is often transported through flue pipes. Depending on the installation space and structural requirements, the cross-sectional shape of the flue mainly includes different forms such as circles and rectangles. Since the overall flue is often quite long, it is usually assembled by segmented prefabrication and on-site splicing. During the processing of the flue shell, angle iron flanges need to be welded to the ends to facilitate the connection and sealing between the sections. To ensure the positional accuracy, flatness, and assembly efficiency of the flange welding, special processing fixtures are usually required. These fixtures play a role in positioning, supporting, and fixing in machining, welding, and assembly processes, which can effectively ensure the consistency of processing accuracy and improve production quality and efficiency.

[0003] The authorization announcement number is CN120115831A, which discloses a laser welding device for boiler flue gas ducts. This device drives a threaded rod in the push assembly to rotate, which in turn drives the push frame to gradually push the end plate, achieving precise material feeding. Its protective assembly prevents the end plate from falling out of the storage box through the coordinated action of the lifting plate and the protective door. In addition, the height of the support block can be adjusted by the electric push rod, which can quickly align the pipe to be welded with the end plate, which helps to ensure welding alignment accuracy and improve welding quality. However, this device is mainly suitable for welding pipe flanges with circular cross-sections. When it comes to the assembly and processing of rectangular cross-section flue shells, it lacks the corresponding positioning and clamping structure, making it difficult to adapt to the structural characteristics and precision requirements of rectangular flues. Therefore, its application scope is limited and it cannot meet the processing needs of diverse flue types.

[0004] Based on this, a jig for assembling and processing flue shells is provided, which can eliminate the drawbacks of existing devices. Summary of the Invention

[0005] The purpose of this invention is to provide a jig for assembling and processing flue shells to solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A jig for assembling and processing flue shells includes a base box and a feeding component. A base frame is fixedly provided at the bottom end of the base box, and an mounting frame is fixedly provided at the top end of the base box. Several rotating rollers are arranged in an array inside the mounting frame. A base plate is provided at the end of the base frame. The feeding component is located above the base plate and is used for positioning, clamping, and feeding angle iron flanges. A limiting component for limiting the position of the flue shell is provided at the top end of the mounting frame. An electric cylinder is installed at one end of the base box near the feeding component. A positioning frame is installed at the telescopic end of the electric cylinder. Support frames are provided on both sides of the rotating rollers. Several support frames are installed at the top end of the mounting tube. A lifting mechanism is provided inside the base box for driving the support frames to clamp and fix the flue shell.

[0008] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In one alternative embodiment: the feeding component includes a movable frame and a feeding frame. The feeding frame has symmetrically arranged fixed shafts, each rotatably mounted within a mounting hole on the inner side of the movable frame. The feeding frame has a rectangular cross-section. Several rotating seats are arrayed along the edges inside the feeding frame, each rotating seat rotatably mounted within a rotating hole on the inner side of the feeding frame. A fourth adjusting rod is fixedly mounted on each rotating seat. A clamping tube is sleeved at the end of each fourth adjusting rod, and a roller is rotatably mounted at the end of each clamping tube. A fourth groove is provided on one side of the fourth adjusting rod, with several adjusting grooves arrayed on the fourth groove. A fourth stop block is closely attached to the fourth groove, rotatably mounted at the end of a fourth screw. The fourth screw is installed in a threaded hole on one side of the clamping tube. Synchronous gear rings are mounted on each rotating seat. Synchronous gears are rotatably mounted at the four corners inside the feeding frame. Both the synchronous gear rings and synchronous gears mesh with a synchronous belt. A bearing plate slides inside the feeding frame.

[0010] In one alternative embodiment: a plurality of third adjusting rods are arranged in a circular array on one side of the bearing plate, a plurality of adjusting grooves are arranged on one side of the third adjusting rods, a third stop block is closely attached to the third adjusting rod, the third stop block is rotatably mounted on the end of a third screw, the third screw is installed in a threaded hole at one end of a first fixed tube, the first fixed tube is installed on a feeding frame, one end of a synchronous gear is fixedly connected to the output end of a second reducer, the input end of the second reducer is fixedly connected to the output end of a second motor, both the second reducer and the second motor are installed on the feeding frame, one end of a fixed shaft is fixedly connected to the output end of a third reducer, the input end of the third reducer is fixedly connected to the output end of a third motor, both the third motor and the third reducer are installed on one side of a movable frame, guide slide rods are symmetrically slidably arranged at the bottom end of the movable frame, the guide slide rods are all installed on the upper end of the base plate, guide rails are symmetrically arranged on the upper end of the base plate, and movable wheels are symmetrically attached to the guide rails, all of which are installed at the bottom end of the movable frame.

[0011] In one alternative embodiment: the limiting assembly includes limiting plates, two of which are symmetrically arranged above the mounting frame. Each limiting plate has a plurality of mounting rods arranged in an array on one side, and each mounting rod has a plurality of ball bearings arranged in an array on one side. One end of each limiting plate is inclined. Each limiting plate has a first adjusting rod symmetrically arranged on one side. A second fixing tube is slidably mounted on each of the first adjusting rods, and the second fixing tube is installed at one end of the fixing rod. Each fixing rod is mounted on the upper end of the mounting frame. A first groove rod is mounted on the upper end of each of the first adjusting rods, and a first stop block is fitted onto each of the first groove rods. The first stop block is rotatably mounted at the end of a first screw, and the first screw is installed in a threaded hole at the end of the second fixing tube.

[0012] In one alternative embodiment: the lifting mechanism includes a connecting rod; the bottom end of the mounting tube is provided with an array of several first hinge seats, each of which is hinged with a connecting rod; the other end of each connecting rod is hinged with a second hinge seat; the second hinge seats are all fixedly mounted on the upper end of a first sliding tube; a first support rod is slidably mounted inside the first sliding tube; the upper end of the first support rod is provided with an array of several rollers; the first support rod is fixedly mounted inside the base box; a threaded seat is fixedly mounted at the bottom end of the first sliding tube; a threaded rod is fitted into a threaded hole at the end of the threaded seat; rotating frames are rotatably mounted at both ends of the threaded rod; the rotating frames are fixedly mounted inside the bottom end of the base box; a worm gear is fixedly mounted at one end of the threaded rod; a worm is meshed on the worm gear; one end of the worm is fixedly connected to the output end of a transmission component; the transmission component is mounted inside the bottom end of the base box; extension plates are symmetrically provided at both ends of the mounting tube; the extension plates are all fixedly connected to the telescopic ends of a telescopic rod; the telescopic rod is mounted inside the bottom end of the base box.

[0013] In one alternative embodiment: a driven gear is installed at the input end of the transmission component, and a rack meshes with the driven gear. The rack is fixedly mounted on one side of the second sliding tube. A second support rod is slidably mounted in the middle of the second sliding tube and is fixedly mounted inside the base box. A fixed seat is fixedly mounted at the bottom end of the second sliding tube, and mounting plates are symmetrically mounted at the bottom end of the fixed seat. A rotating plate is rotatably mounted between the two mounting plates. A fixed disk and a connecting plate are fixedly mounted on the rotating shafts at both ends of the rotating plate. A third fixed tube is fitted to the outside of the fixed disk and is fixedly mounted on one side of the mounting plate. A double-acting torsion spring is provided between one side of the fixed disk and one end inside the third fixed tube. The connecting plate is... Each side is equipped with a limiting tube that slides along the bottom of the base box. The limiting tube is installed at the bottom of the base box and the fixed seat. A limiting groove is provided at the bottom of the base box and the fixed seat. A fixed plate is fixed at the bottom of the fixed seat and one side of the rotating plate. A drive seat is provided between the fixed plate and the rotating plate. The drive seat is fixedly installed on the upper end of the chain belt. Both ends of the chain belt are equipped with sprockets. The sprockets are rotatably installed inside the mounting box. One end of the sprocket's rotating shaft is fixedly connected to the output end of the first reducer. The input end of the first reducer is fixedly connected to the output end of the first motor. The first motor and the first reducer are both installed on one side of the mounting box. A first connecting seat is fixedly installed at the bottom of the moving frame. The first connecting seat is installed on the upper end of the chain belt.

[0014] In one alternative: a clamping plate is provided above the end of the mounting frame, a second adjusting rod is provided at the upper end of the clamping plate, a second groove rod is provided on one side of the second adjusting rod, a second stop block is provided on the second groove rod, the second stop block is rotatably disposed at the end of a second screw, the second screw is installed in a threaded hole at one end of a fourth fixing tube, the fourth fixing tube is fixedly disposed at the upper end of the fixing frame, and the fixing frame is installed at the upper end of the mounting frame.

[0015] In one alternative: a plurality of support plates are arranged in an array on one side of the bearing plate, the ends of the support plates are all inclined, the support plates are fixedly connected to the bearing plate by fastening screws, and a plurality of adjusting screw holes are arranged in an array on the bearing plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. A limiting plate is symmetrically set above the mounting frame, and several rotating rollers are arrayed inside the mounting frame. A positioning frame is provided at the end of the mounting frame, which can be used to position and feed the flue shell. A feeding component is set at the end of the bottom box, and several clamping tubes are set inside the feeding frame. The clamping tubes are driven by a synchronous toothed belt, and the feeding frame can rotate, which facilitates the positioning and clamping of the angle iron flange. By setting a chain, the support frame can push the flue shell to rise during the feeding process of the angle iron flange driven by the chain, to complete the clamping and concentric positioning, which facilitates the rapid assembly of the flue shell and the angle iron flange.

[0018] 2. Several clamping tubes are detachable, which allows for the positioning and clamping of round and rectangular flanges, and thus enables the assembly and processing of flues of different shapes, thereby increasing the practicality of the flue shell assembly and processing fixture. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the installation of the flue shell and angle iron flange of the present invention.

[0021] Figure 3 This is a schematic diagram of the installation of the rotating roller of the present invention.

[0022] Figure 4 This is a schematic diagram of the installation of the speed-changing component of the present invention.

[0023] Figure 5 This is a schematic diagram of the internal structure of the bottom box of the present invention.

[0024] Figure 6 This is a schematic diagram of the mobile frame structure of the present invention.

[0025] Figure 7 This is a schematic diagram of the support plate structure of the present invention.

[0026] Figure 8 This is a schematic diagram of the installation of the third adjusting rod of the present invention.

[0027] Figure 9 This is a schematic diagram of the fixing base structure of the present invention.

[0028] Figure reference numerals: 11 Mounting frame, 12 Rotating roller, 13 Base box, 14 Base frame, 15 Positioning frame, 16 Electric cylinder, 17 Limiting plate, 18 First adjusting rod, 19 Clamping plate, 20 Second adjusting rod, 21 Fixed frame, 22 Feeding component, 23 Moving frame, 24 First connecting seat, 25 Chain belt, 26 First motor, 27 Mounting box, 28 Feeding frame, 29 Bearing plate, 30 Third adjusting rod, 31 Third stop block, 32 Clamping tube, 33 Fourth adjusting rod, 34 Rotating seat, 35 Synchronous gear ring, 36 Synchronous gear 37. Gear, 38. Synchronous toothed belt, 39. Second motor, 40. Support plate, 41. Third motor, 42. Support frame, 43. Mounting tube, 44. Telescopic rod, 45. Connecting rod, 46. First sliding tube, 47. First support rod, 48. Threaded seat, 49. Threaded rod, 50. Worm gear, 51. Speed ​​change component, 52. Driven gear, 53. Rack, 54. Second sliding tube, 55. Fixed seat, 56. Fixed plate, 57. Drive seat, 58. Rotating plate, 59. Double torsion spring, 60. Connecting plate, 61. Limiting tube, 62. Flue shell, 63. Angle iron flange. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. Example 1

[0030] In one embodiment, such as Figures 1-9 As shown, a flue shell assembly and processing fixture includes a base box 13 and a feeding component 22. A base frame 14 is fixedly mounted at the bottom end of the base box 13, and a mounting frame 11 is fixedly mounted at the top end of the base box 13. Several rotating rollers 12 are arrayed inside the mounting frame 11. A base plate is provided at the end of the base frame 14. The feeding component 22 is positioned above the base plate and is used for positioning, clamping, and feeding the angle iron flange 63.

[0031] The feeding component 22 includes a movable frame 23 and a feeding frame 28. The feeding frame 28 is symmetrically provided with fixed shafts. The fixed shafts are rotatably installed in the mounting holes inside the movable frame 23. In use, the third motor 40 is started by controlling the external control component, which can rotate the feeding frame 28 by 90 degrees to make it horizontal. The cross-section of the feeding frame 28 is rectangular.

[0032] The feeding frame 28 has several rotating seats 34 arranged in an array along its edges. The rotating seats 34 are rotatably disposed in the rotating holes on the inner side of the feeding frame 28. Each rotating seat 34 is fixedly provided with a fourth adjusting rod 33. The end of the fourth adjusting rod 33 is sleeved with a clamping tube 32. The end of the clamping tube 32 is rotatably provided with a roller.

[0033] Each of the rotating seats 34 is equipped with a synchronous gear ring 35, and each of the four corners inside the feeding frame 28 is equipped with a synchronous gear 36. The synchronous gear ring 35 and the synchronous gear 36 are meshed with the synchronous belt 37. In use, the second motor 38 drives one synchronous gear 36 to rotate, and drives the remaining synchronous gears 36 and several synchronous gear rings 35 to rotate through the synchronous belt 37, thereby causing several clamping tubes 32 to deflect.

[0034] The loading frame 28 has a sliding support plate 29 inside. A plurality of third adjusting rods 30 are arranged in a circular array on one side of the support plate 29. A plurality of adjusting grooves are provided on one side of each third adjusting rod 30. A third stop block 31 is attached to the third rod 30. The third stop block 31 is rotatably mounted on the end of a third screw. The third screw is installed in a threaded hole at one end of a first fixing tube. The first fixing tube is installed on the loading frame 28. In use, the distance between the support plate 29 and one side of the clamping tube 32 can be adjusted according to the thickness of the angle iron flange 63. The support plate 29 is fixed by the cooperation of the third stop block 31 and the third adjusting rods 30.

[0035] The fourth adjusting rod 33 has a fourth groove rod on one side, and a number of adjusting grooves are arranged on the fourth groove rod. A fourth stop block is attached to the fourth groove rod. The fourth stop block is rotatably located at the end of the fourth screw. The fourth screw is installed in the threaded hole on one side of the clamping tube 32.

[0036] One end of the synchronous gear 36 is fixedly connected to the output end of the second reducer, the input end of the second reducer is fixedly connected to the output end of the second motor 38, the second reducer and the second motor 38 are both mounted on the loading frame 28, one end of the fixed shaft is fixedly connected to the output end of the third reducer, the input end of the third reducer is fixedly connected to the output end of the third motor 40, and the third motor 40 and the third reducer are both mounted on one side of the movable frame 23.

[0037] The bottom end of the movable frame 23 is symmetrically equipped with guide slide rods, all of which are mounted on the upper end of the base plate. The upper end of the base plate is symmetrically equipped with guide rails, and each guide rail is symmetrically fitted with a movable wheel. The movable wheels are all mounted on the bottom end of the movable frame 23. In use, the third motor 40 can rotate in the opposite direction to restore the loading frame 28 to a vertical state. The drive source drives the movable frame 23 to move along the guide rails to complete the loading of the angle iron flange 63.

[0038] The upper end of the mounting frame 11 is provided with a limiting component for limiting the flue housing 62. The limiting component includes two limiting plates 17 symmetrically arranged above the mounting frame 11. Each limiting plate 17 has a plurality of mounting rods arranged in an array on one side, and each mounting rod has a plurality of ball bearings arranged in an array on one side. Each limiting plate 17 is inclined at one end, and each limiting plate 17 has a first adjusting rod 18 symmetrically arranged on one side.

[0039] Each of the first adjusting rods 18 is slidably provided with a second fixing tube, which is installed at one end of the fixing rod. The fixing rods are all installed on the upper end of the mounting frame 11. A first groove rod is installed on the upper end of the first adjusting rod 18. A first stop block is provided on the first groove rod. The first stop block is rotatably located at the end of a first screw. The first screw is installed in the threaded hole at the end of the second fixing tube. In use, the distance between the two limiting plates 17 is adjusted according to the width of the flue housing 62, and the limiting plates 17 are fixed by the cooperation of the first stop block and the first groove rod to achieve limiting and positioning during conveying.

[0040] An electric cylinder 16 is installed at one end of the bottom box 13 near the feeding component 22. A positioning frame 15 is installed at the telescopic end of the electric cylinder 16. Support frames 41 are provided on both sides of the rotating roller 12. Several support frames 41 are installed on the upper end of the mounting tube 42. A lifting mechanism is provided inside the bottom box 13 to drive the support frames 41 to clamp and fix the flue shell 62.

[0041] The lifting mechanism includes a connecting rod 44. The bottom end of the mounting tube 42 is provided with an array of first hinge seats, on which the connecting rod 44 is hinged. The other end of the connecting rod 44 is hinged with a second hinge seat, which is fixedly mounted on the upper end of a first sliding tube 45. A first support rod 46 is slidably mounted inside the first sliding tube 45. The upper end of the first support rod 46 is provided with an array of rollers, which are fixedly mounted inside the base box 13. A threaded seat 47 is fixedly mounted at the bottom end of the first sliding tube 45, and a threaded hole at the end of the threaded seat 47 is fitted with... A threaded rod 48 is provided, with rotating brackets at both ends of the threaded rod 48. The rotating brackets are fixedly installed at the bottom of the base box 13. A worm gear 49 is fixedly installed at one end of the threaded rod 48, and a worm 50 is meshed on the worm gear 49. One end of the worm 50 is fixedly connected to the output end of the speed change component 51. The speed change component 51 is installed at the bottom of the base box 13. An extension plate is symmetrically provided at both ends of the mounting tube 42. The extension plate is fixedly connected to the telescopic end of the telescopic rod 43. The telescopic rod 43 is installed at the bottom of the base box 13.

[0042] The input end of the transmission component 51 is equipped with a driven gear 52, on which a rack 53 meshes. The rack 53 is fixedly mounted on one side of the second sliding tube 54. A second support rod is slidably mounted in the middle of the second sliding tube 54 and is fixedly mounted inside the base box 13. A fixed seat 55 is fixedly mounted at the bottom end of the second sliding tube 54. Mounting plates are symmetrically mounted at the bottom end of the fixed seat 55. A rotating plate 58 is rotatably mounted between the two mounting plates. A fixed disk and a connecting plate 60 are fixedly mounted on the rotating shafts at both ends of the rotating plate 58. A third fixed tube is fitted to the outside of the fixed disk and is fixedly mounted on one side of the mounting plate. A bidirectional torsion spring 59 is provided between one side of the fixed disk and one end inside the third fixed tube. A limiting tube 61 is slidably mounted on the outside of the connecting plate 60 and is mounted at the bottom end of the base box 13.

[0043] A limiting groove is provided at the bottom end of the base box 13 and the position of the fixed seat 55. A fixed plate 56 is fixedly provided at the bottom end of the fixed seat 55 and one side of the rotating plate 58. A drive seat 57 is provided between the fixed plate 56 and the rotating plate 58. The drive seat 57 is fixedly provided on the upper end of the chain belt 25. Both ends of the chain belt 25 are provided with sprockets. The sprockets are rotatably located inside the mounting box 27. The rotating shaft at one end of one of the sprockets is fixedly connected to the output end of the first reducer. The input end of the first reducer is fixedly connected to the output end of the first motor 26. The first motor 26 and the first reducer are both installed on one side of the mounting box 27. A first connecting seat 24 is fixedly provided at the bottom end of the moving frame 23. The first connecting seat 24 is installed on the upper end of the chain belt 25.

[0044] A clamping plate 19 is provided above the end of the mounting frame 11. A second adjusting rod 20 is provided at the upper end of the clamping plate 19. A second groove rod is provided on one side of the second adjusting rod 20. A second stop block is provided on the second groove rod. The second stop block is rotatably located at the end of a second screw. The second screw is installed in a threaded hole at one end of a fourth fixing tube. The fourth fixing tube is fixedly installed on the upper end of a fixing frame 21. The fixing frame 21 is installed on the upper end of the mounting frame 11. In use, when the support frame 41 pushes the flue housing 62 and the angle iron flange 63 to be coaxial, the upper end of the flue housing 62 is tightly attached to the bottom end of the clamping plate 19, which can achieve clamping and fixing of the flue housing 62.

[0045] The angle iron flange 63 is positioned and clamped by the feeding component 22 and can be automatically sleeved onto the end of the flue shell 62 for welding. The lifting mechanism is used to push the flue shell 62 up so that it is installed concentrically with the angle iron flange 63. Example 2

[0046] The difference from Embodiment 1 is that: a plurality of support plates 39 are arranged in an array on one side of the bearing plate 29, and the ends of the support plates 39 are all inclined. The support plates 39 are fixedly connected to the bearing plate 29 by fastening screws. A plurality of adjusting screw holes are arranged in an array on the bearing plate 29. In use, when the angle iron flange 63 is sleeved on the end of the flue shell 62, the support plate 39 is in close contact with the inner side of the flue shell 62, thereby supporting the end of the flue shell 62 and preventing deformation of the flue shell 62 during welding. When it is necessary to feed and weld the circular flange, the middle clamping tube 32 is retained, and the clamping tube 32 at the end is removed. It is fixed by four-point clamping. The roller at the end of the clamping tube 32 is in close contact with the outer side of the circular flange, thereby completing the positioning and clamping of the circular flange.

[0047] The above embodiment discloses a flue housing assembly and processing fixture. During the assembly and processing of the flue housing, the flue housing 62 is placed on the upper end of the mounting frame 11, so that the bottom end of the flue housing 62 is in close contact with the rotating roller 12. Then, the flue housing 62 is pushed to slide. Two limiting plates 17 can limit the movement of the flue housing 62. When the end of the flue housing 62 is in close contact with the end of the positioning frame 15, the feeding of the flue housing 62 is completed. Subsequently, the third motor 40 is started by an external control component. The third motor 40 drives the feeding frame 28 to rotate 90 degrees, so that the feeding frame 28 is in a horizontal state. Meanwhile, the second motor 38 drives a synchronous gear. When the 36 rotates, the synchronous gear 36 drives the other synchronous gears 36 and several synchronous gear rings 35 to rotate through the synchronous toothed belt 37, causing several clamping tubes 32 to deflect and place the angle iron flange 63 on the upper end of the bearing plate 29. The second motor 38 is restarted, causing the output end of the second motor 38 to rotate in the opposite direction. The synchronous toothed belt 37 drives several synchronous gear rings 35 to rotate, and the synchronous gear rings 35 drive the rotating seat 34 to deflect at a fixed angle, so that the roller at the end of the clamping tube 32 is in close contact with the angle iron flange 63, thereby positioning and clamping the angle iron flange 63. Then the third motor 40 rotates in the opposite direction, so that the feeding frame 28 is in a vertical state.

[0048] The first motor 26 is started by an external control component. The first motor 26 drives the chain belt 25 to rotate. The chain belt 25 drives the moving frame 23 to move through the first connecting seat 24. The moving frame 23 drives the angle iron flange 63 to move through the loading frame 28. At the same time, the chain belt 25 drives the drive seat 57 to move. At this time, since the connecting plate 60 is inside the limiting tube 61, the rotating plate 58 will not rotate when the drive seat 57 is in close contact with the rotating plate 58. This allows the drive seat 57 to drive the second sliding tube 54 to slide through the rotating plate 58 and the fixed seat 55. The second sliding tube 54 drives the input end of the speed change component 51 to rotate through the meshing of the rack 53 and the driven gear 52. The output end of the speed change component 51 drives the worm 50 to rotate. The worm 50 meshes with the worm wheel 49 to drive the threaded rod 48 to rotate. The threaded rod 48 and the threaded seat 47 threadedly engage to drive the first sliding tube 45 to slide. The first sliding tube 45 drives the first sliding tube 45 to slide through the meshing of the rack 53 and the driven gear 52. Several connecting rods 44 drive several support frames 41 to rise, causing the support frames 41 to push the flue housing 62 to rise and be coaxial with the angle iron flange 63. When the connecting plate 60 separates from the limiting tube 61, the chain 25 continues to move. Since the end of the rotating plate 58 lacks a limit, the rotating plate 58 rotates. The drive seat 57 separates from the rotating plate 58, and the support frame 41 stops rising. At this time, the flue housing 62 and the angle iron flange 63 are coaxially set. The upper end of the flue housing 62 is in close contact with the bottom end of the clamping plate 19. At the same time, the output end of the electric cylinder 16 retracts, causing the positioning frame 15 to descend to the lowest position. Then the chain 25 continues to move, causing the angle iron flange 63 to be sleeved on the end of the flue housing 62. The support plate 39 is in close contact with the inner side of the flue housing 62, thereby supporting the end of the flue housing 62. The flue housing 62 and the angle iron flange 63 are welded and fixed by external welding components.

[0049] After the flue shell 62 and the angle iron flange 63 are assembled, the second motor 38 rotates in the opposite direction, causing all the clamping tubes 32 to deflect in the opposite direction, thereby releasing the fixation of the angle iron flange 63. Then, the first motor 26 drives the chain belt 25 to rotate in the opposite direction. The moving frame 23 and the feeding frame 28 move first, and the angle iron flange 63 separates from the bearing plate 29. When the drive seat 57 is in close contact with the rotating plate 58, the rotating plate 58 rotates. After the drive seat 57 separates from the rotating plate 58, under the action of the bidirectional torsion spring 59, the rotating plate 58 returns to its initial state. Then, one side of the drive seat 57 is in close contact with one side of the fixed plate 56, causing the second sliding tube 54 to slide. The threaded rod 48 rotates in the opposite direction, causing the support frame 41 to descend. Through repeated operations, the assembly of multiple angle iron flanges 63 and flue shell 62 can be completed.

[0050] When it is necessary to feed and weld the circular flange, the middle clamping tube 32 is retained, and the clamping tube 32 at the end is removed. The flange is fixed by four-point clamping. The roller at the end of the clamping tube 32 is in close contact with the outside of the circular flange, thereby completing the positioning and clamping of the circular flange.

[0051] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A jig for assembling and processing a flue shell, comprising a base box (13) and a feeding component (22), wherein a base frame (14) is fixedly provided at the bottom end of the base box (13), and a mounting frame (11) is fixedly provided at the upper end of the base box (13), wherein a plurality of rotating rollers (12) are arranged in an array inside the mounting frame (11), a base plate is provided at the end of the base frame (14), and the feeding component (22) is disposed above the base plate, characterized in that, The feeding component (22) is used to position and clamp the angle iron flange (63) and feed it. The upper end of the mounting frame (11) is provided with a limiting component for limiting the flue shell (62). An electric cylinder (16) is installed at one end of the bottom box (13) near the feeding component (22). A positioning frame (15) is installed at the telescopic end of the electric cylinder (16). Support frames (41) are provided on both sides of the rotating roller (12). Several support frames (41) are installed on the upper end of the mounting tube (42). The bottom box (13) is provided with a lifting mechanism for driving the support frames (41) to clamp and fix the flue shell (62). The feeding component (22) includes a movable frame (23) and a feeding frame (28). The feeding frame (28) has symmetrically arranged fixed shafts, all of which are rotatably mounted in mounting holes inside the movable frame (23). The feeding frame (28) has a rectangular cross-section. Several rotating seats (34) are arranged in an array along the edges inside the feeding frame (28). Each rotating seat (34) is rotatably mounted in a rotating hole inside the feeding frame (28). Each rotating seat (34) is fixedly equipped with a fourth adjusting rod (33). Each end of the fourth adjusting rod (33) is sleeved with a clamping tube (32). The end of the clamping tube (32) rotates... The fourth adjustment rod (33) is provided with a roller, and a fourth groove rod is provided on one side of the fourth adjustment rod. Several adjustment grooves are arranged on the fourth groove rod. A fourth stop block is closely attached to the fourth groove rod. The fourth stop block is rotatably located at the end of the fourth screw. The fourth screw is installed in the threaded hole on one side of the clamping tube (32). A synchronous gear ring (35) is installed on each of the rotating seats (34). A synchronous gear (36) is rotatably provided at each of the four corners inside the feeding frame (28). The synchronous gear ring (35) and the synchronous gear (36) are both meshed with the synchronous gear belt (37). A bearing plate (29) is slidably provided inside the feeding frame (28).

2. The flue shell assembly and processing fixture according to claim 1, characterized in that, The bearing plate (29) has a circular array of several third adjusting rods (30) on one side, and several adjusting grooves on one side of each third adjusting rod (30). A third stop block (31) is attached to the third adjusting rod (30) and is rotatably mounted on the end of a third screw. The third screw is installed in a threaded hole at one end of a first fixing tube. The first fixing tube is installed on the feeding frame (28). One end of a synchronous gear (36) is fixedly connected to the output end of a second reducer. The input end of the second reducer is fixedly connected to the output end of a second motor (38). The second reducer and the second motor (38) are both mounted on the loading frame (28). One end of the fixed shaft is fixedly connected to the output end of the third reducer. The input end of the third reducer is fixedly connected to the output end of the third motor (40). The third motor (40) and the third reducer are both mounted on one side of the moving frame (23). The bottom end of the moving frame (23) is symmetrically provided with guide slide rods. The guide slide rods are all mounted on the upper end of the base plate. The upper end of the base plate is symmetrically provided with guide rails. The guide rails are symmetrically and closely attached to the moving wheels. The moving wheels are all mounted on the bottom end of the moving frame (23).

3. The flue shell assembly and processing fixture according to claim 1, characterized in that, The limiting component includes a limiting plate (17), two limiting plates (17) are symmetrically arranged above the mounting frame (11), a plurality of mounting rods are arrayed on one side of each limiting plate (17), a plurality of ball bearings are arrayed on one side of each mounting rod, one end of each limiting plate (17) is inclined, a first adjusting rod (18) is symmetrically arranged on one side of each limiting plate (17), a second fixing tube is slidably arranged on each first adjusting rod (18), the second fixing tube is installed at one end of the fixing rod, the fixing rod is installed at the upper end of the mounting frame (11), a first groove rod is installed at the upper end of the first adjusting rod (18), a first stop block is fitted on each first groove rod, the first stop block is rotatably arranged at the end of a first screw, and the first screw is installed in the threaded hole at the end of the second fixing tube.

4. The flue shell assembly and processing fixture according to claim 2, characterized in that, The lifting mechanism includes a connecting rod (44). The bottom end of the mounting tube (42) is provided with several first hinge seats, each hinge seat having a connecting rod (44) hinged to it. The other end of each connecting rod (44) is hinged to a second hinge seat. The second hinge seats are fixedly mounted on the upper end of a first sliding tube (45). A first support rod (46) is slidably mounted inside the first sliding tube (45). Several rollers are arranged in an array on the upper end of the first support rod (46). The first support rod (46) is fixedly mounted inside the base box (13). A threaded seat (47) is fixedly mounted at the bottom end of the first sliding tube (45). The threaded seat (47) has its end... A threaded rod (48) is fitted inside the threaded hole. Both ends of the threaded rod (48) are rotatably mounted on rotating brackets. The rotating brackets are fixedly mounted inside the bottom of the base box (13). One end of the threaded rod (48) is fixedly mounted on a worm gear (49). A worm (50) is meshed on the worm gear (49). One end of the worm (50) is fixedly connected to the output end of the speed change component (51). The speed change component (51) is installed inside the bottom of the base box (13). Both ends of the mounting tube (42) are symmetrically provided with extension plates. The extension plates are fixedly connected to the telescopic ends of the telescopic rod (43). The telescopic rod (43) is installed inside the bottom of the base box (13).

5. A flue shell assembly and processing fixture according to claim 4, characterized in that, The input end of the transmission component (51) is equipped with a driven gear (52), and a rack (53) meshes with the driven gear (52). The rack (53) is fixedly mounted on one side of the second sliding tube (54). A second support rod is slidably mounted in the middle of the second sliding tube (54). The second support rod is fixedly mounted inside the base box (13). A fixed seat (55) is fixedly mounted at the bottom end of the second sliding tube (54). Mounting plates are symmetrically mounted at the bottom end of the fixed seat (55). A rotating plate (58) is rotatably mounted between the two mounting plates. A fixed disk and a connecting plate (60) are fixedly mounted on the rotating shafts at both ends of the rotating plate (58). A third fixed tube is fitted on the outside of the fixed disk. The third fixed tube is fixedly mounted on one side of the mounting plate. A bidirectional torsion spring (59) is provided between one side of the fixed disk and one end inside the third fixed tube. A limiting tube (61) is slidably mounted on the outside of the connecting plate (60). A limiting tube (61) is installed at the bottom of the base box (13). A limiting groove is provided at the bottom of the base box (13) and the fixed seat (55). A fixed plate (56) is fixed at the bottom of the fixed seat (55) and the side of the rotating plate (58). A drive seat (57) is provided between the fixed plate (56) and the rotating plate (58). The drive seat (57) is fixed at the upper end of the chain belt (25). Both ends of the chain belt (25) are equipped with sprockets. The sprockets are rotatably installed inside the mounting box (27). One end of the sprocket is fixedly connected to the output end of the first reducer. The input end of the first reducer is fixedly connected to the output end of the first motor (26). The first motor (26) and the first reducer are both installed on the side of the mounting box (27). A first connecting seat (24) is fixedly provided at the bottom of the moving frame (23). The first connecting seat (24) is installed at the upper end of the chain belt (25).

6. The flue shell assembly and processing fixture according to claim 5, characterized in that, A clamping plate (19) is provided above the end of the mounting frame (11). A second adjusting rod (20) is provided at the upper end of the clamping plate (19). A second groove rod is provided on one side of the second adjusting rod (20). A second stop block is provided on the second groove rod. The second stop block is rotatably located at the end of the second screw. The second screw is installed in the threaded hole at one end of the fourth fixing tube. The fourth fixing tube is fixedly installed at the upper end of the fixing frame (21). The fixing frame (21) is installed at the upper end of the mounting frame (11).

7. A flue shell assembly and processing fixture according to claim 6, characterized in that, The support plate (29) has several support plates (39) arranged in an array on one side. The ends of the support plates (39) are all inclined. The support plates (39) are fixedly connected to the support plate (29) by fastening screws. The support plate (29) has several adjusting screw holes arranged in an array.

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