An adjustable welding device for air cooler production

Abstract

The present invention discloses an adjustable welding device for air cooler production, which relates to the technical field of auxiliary welding of air coolers, including a top platform, a bottom frame, and a bottom supporting plate. A top platform is provided on the top of the bottom frame, and the top platform serves as a supporting platform for welding multiple finned tubes of the entire air cooler to the reserved holes of the tube plate; the main structure of the present invention includes a top platform and a bottom frame, and a bottom supporting plate is provided at the middle position of the top of the top platform for receiving multiple finned tubes, and a tube plate fixing assembly that can be driven close to each other by a bidirectional screw is provided at the edge position of the top platform. After fixing the tube plate, the tube plate fixing assembly is driven by the bidirectional screw to approach the two ends of the multiple finned tubes, and automatically completes the assembly of the multiple finned tubes and the two tube plates, thereby greatly improving efficiency, being suitable for mass production, and ensuring the depth of the finned tubes inserted into the reserved holes of the tube plate, avoiding problems such as poor heat conduction or subsequent unstable welding due to improper insertion.

Description

Technical Field

[0001] The present invention relates to the technical field of auxiliary welding of air coolers, and in particular to an adjustable welding device for producing air coolers. Background Art

[0002] Air coolers, as equipment for heat exchange between process fluids and ambient air, are widely used in industries such as petrochemicals, electric power, and metallurgy. Their core structure is usually composed of multiple finned tubes. The two ends of the finned tubes need to be accurately inserted and welded into the reserved holes in the tube sheet to form a reliable mechanical connection and heat conduction path. In the production and manufacturing of air coolers, the assembly and welding quality between the finned tubes and the tube sheet directly affect the heat exchange efficiency, structural strength and service life of the equipment.

[0003] Currently, during the assembly and welding process of finned tubes and tube sheets, manual alignment and insertion are often used for positioning and assembly. This traditional process has the following significant problems:

[0004] 1. Large insertion depth error

[0005] When manually inserting finned tubes, operators rely on experience to control the insertion force, making it difficult to ensure that each finned tube is inserted into the tube sheet to the same length. This can easily lead to problems such as one end being inserted deeper and the other end being inserted shallower. This not only affects the consistency of the weld, but can also cause stress concentration or poor welding.

[0006] 2. Low assembly efficiency

[0007] Since manual insertion requires aligning holes, inserting, correcting, and limiting each thread one by one, it is time-consuming and labor-intensive, making it difficult to adapt to the pace of mass production and seriously restricting overall production efficiency. Summary of the Invention

[0008] The purpose of the present invention is to solve the problem of manual alignment and manual insertion in the existing technology during the assembly and welding of finned tubes and tube sheets. This traditional process has the problem that when manually inserting finned tubes, the operator relies on experience to control the insertion force, which makes it difficult to ensure that each finned tube is inserted into the tube sheet to a consistent length. This can easily lead to the problem of one end being inserted deep and the other end being inserted shallow. This not only affects the consistency of the weld, but may also cause stress concentration or poor welding. In addition, since manual insertion requires alignment of holes, insertion, correction, and positioning of each finned tube, it is time-consuming and labor-intensive, making it difficult to adapt to the rhythm of mass production, and seriously restricting overall production efficiency. Therefore, an adjustable welding device for air cooler production is proposed.

[0009] In order to achieve the above object, the present invention adopts the following technical solutions:

[0010] An adjustable welding device for air cooler production includes a top platform, a bottom frame, and a bottom support plate. The top platform is provided on the top of the bottom frame and serves as a support platform for welding multiple finned tubes of the entire air cooler to the reserved holes of the tube plate.

[0011] A bottom support plate is slidingly provided on the top of the top platform, and the bottom support plate is used to quickly and equidistantly carry and distribute multiple fin tubes. A transverse frame is fixedly provided on the top of one end of the top platform, and tube sheet fixing assemblies are provided at both ends of the transverse frame. The tube sheet fixing assemblies fix and clamp the tube sheet to be welded, and the tube sheet is ready to be docked with multiple fin tubes.

[0012] A driving block is slidingly provided in the inner cavity of the transverse frame, and a follow-up flip assembly is further provided on one side of the driving block. When the tube sheet fixing assembly is at the edge of the top platform, the follow-up flip assembly controls the U-shaped frame opening in the tube sheet fixing assembly to face upward, and when the fixing plate fixing assembly drives the tube sheet to dock with the multiple fin tubes, the U-shaped frame opening in the tube sheet fixing assembly is controlled to face horizontally.

[0013] A follow-up pressing assembly is provided at the middle position of the top of the transverse frame. When the two tube sheet fixing assemblies drive the tube sheet to approach the multiple fin tubes, the follow-up pressing assembly presses the tops of the multiple fin tubes.

[0014] Optionally, the tube sheet fixing assembly includes a U-shaped frame, a common plate, and an auxiliary clamping block. A horizontal column is fixedly provided at one end of the U-shaped frame, and the other end of the horizontal column is rotatably connected to the side of the driving block. There are two driving blocks in total. A micro motor is fixedly provided on the side of the transverse frame, and a bidirectional screw is fixedly provided on the output end of the micro motor. The outer wall of the bidirectional screw is symmetrically provided with external threads with opposite rotation directions. Two driving blocks are symmetrically screwed into the outer wall of the bidirectional screw, and an adjustment electric push rod is vertically fixed on the outer side of the U-shaped frame.

[0015] Optionally, a common plate is fixedly provided at the output end of the adjustment electric push rod, positioning columns are equidistantly provided on the top of the common plate, the positioning columns extend from the bottom of the U-shaped frame, clamping electric push rods are fixedly provided at both edge positions of the U-shaped frame, and an auxiliary clamping block is fixedly provided at the output end of the clamping electric push rod.

[0016] Optionally, the follow-up flip assembly includes a vertical plate, a driving column, a driven gear, and an active gear rod. A driven gear is fixedly provided at one end of the horizontal column. A vertical T-block is movably inserted into the driving block along the vertical direction. The vertical T-block is movably inserted into the top of the driving block. An active gear rod is fixedly provided on the side of the vertical T-block.

[0017] Optionally, the active gear rod is stably engaged with the side surface of the driven gear, the vertical plate is fixedly arranged on the side surface of the top platform, a bottom transverse groove is fixedly opened in the middle position of the side surface of the vertical plate, both ends of the bottom transverse groove are connected with inclined grooves, and the other end of the inclined groove is connected with a top transverse groove, and a driving column is provided on the top of the side surface of the active gear rod, and the driving column is movably inserted into the bottom transverse groove, the inclined groove or the top transverse groove.

[0018] Optionally, the follow-up top pressure assembly includes a synchronization rod, a protruding shoulder, and a top supporting plate. V-shaped grooves are equidistantly provided at the bottom of the top supporting plate and the top of the bottom supporting plate. A second vertical rod is fixedly provided at one end of the top supporting plate, and the second vertical rod is movably inserted into the top of the top platform. A first vertical rod is fixedly provided at the top of the side of the second vertical rod, and an avoidance groove is provided between the first vertical rod and the second vertical rod, and the avoidance groove is movably inserted into the outer wall of the vertical plate.

[0019] Optionally, a synchronization rod is fixedly provided on the top side of one of the active gear rods, a protruding shoulder is fixedly provided on the side of the first vertical rod, a synchronization groove is provided on the side of the synchronization rod, and the protruding shoulder is movably inserted into the synchronization groove, and an auxiliary fixing component is provided on the side of the second vertical rod, and the auxiliary fixing component limits the bottom support plate when multiple fin tubes are docked with the tube sheet.

[0020] Optionally, the auxiliary fixing assembly includes a mounting block, a vertical column, and a positioning ring. A positioning ring is symmetrically fixed on one end of the bottom support plate, a mounting block is symmetrically fixed on the side of the second vertical rod, and a vertical column is fixed on the bottom of the mounting block. The vertical column is movably inserted into the interior of the positioning ring.

[0021] Optionally, walking wheels are rotatably provided at the four corners of the bottom frame, an electric welding machine is provided inside the bottom frame, inverted T blocks are symmetrically fixed on the bottom of the bottom support plate, inverted T grooves are symmetrically opened on the top of the top platform, and the inverted T blocks are movably inserted into the inverted T grooves.

[0022] Optionally, support columns are fixedly provided at the four corners of the top platform, a top cross frame is fixedly provided on the top of the support columns, the bottom edge of the top cross frame is fixedly connected to one end of the diagonal support frame, and the other end of the diagonal support frame is fixedly connected to the side of one of the support columns.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] 1. The main structure of the present invention includes a top platform and a bottom frame, and a bottom support plate is provided at the middle position of the top of the top platform for receiving multiple finned tubes, and a tube sheet fixing assembly that can be driven close to each other by a bidirectional screw is provided at the edge of the top platform. After fixing the tube sheet, the tube sheet fixing assembly is driven by the bidirectional screw to approach the two ends of the multiple finned tubes, automatically completing the assembly of multiple finned tubes and two tube sheets, greatly improving efficiency, being suitable for mass production, and ensuring that the finned tubes are inserted into the depth of the reserved holes in the tube sheet, avoiding problems such as poor heat conduction or unstable subsequent welding caused by improper insertion. Finally, workers do not need to manually adjust the position of each finned tube, but only need to place the tube fittings on the bottom support plate, and the system drives them to automatically approach and assemble, which can reduce labor costs and reduce dependence on worker proficiency.

[0025] When the tube sheet fixing assembly approaches the plurality of fin tubes along with the driving block, the U-shaped frame is immediately flipped until the opening is in a horizontal state, so that the side of the tube sheet faces the arrangement direction of the fin tubes, which facilitates the parallel insertion of the plurality of fin tubes into the tube sheet holes. This structural design not only significantly simplifies manual loading operations, but also ensures stability and consistency during the assembly process, improving overall efficiency and assembly quality.

[0026] 3. The present invention is additionally provided with a follower pressing assembly on the top of the bottom support plate for holding multiple finned tubes. When the driving block drives the tube plate fixing assemblies to approach each other and is ready to complete the mutual docking of the finned tube and the tube plate, the follower pressing assembly will be controlled by the follower flip assembly to move downward in advance. The follower pressing assembly cooperates with the bottom support plate to assist in fixing the multiple finned tubes. The follower pressing assembly is controlled in conjunction with the follower flip assembly to achieve timing coordination during the assembly process. When the driving block drives the tube plate fixing assemblies on both sides to move toward each other and is ready to complete the assembly action of inserting the finned tube into the tube plate hole, the follower flip assembly The synchronous linkage follower top pressure assembly moves downward, so that it acts on the top of the finned tube before the finned tube is inserted, forming a light pressure state, and cooperates with the bottom support plate to assist in limiting and fixing the finned tube, ensuring that the finned tube will not shake or displace due to the proximity or contact of the tube plate during the critical stage of assembly, and effectively preventing problems such as deflection, crooked insertion, and tube jamming during the insertion process. Through the unified control of the follower system, the coordinated cooperation of multiple actions such as U-frame flipping, positioning column alignment, and finned tube fixing is realized, thereby improving the degree of automation and synchronization of the overall assembly process and ensuring accurate, efficient and stable assembly.

[0027] 4. The present invention enables the bottom support plate to be slidably connected to the top of the top platform so that it has the ability to move laterally, which makes it easy to move the entire assembly part smoothly to the unloading station after the fin tube and the two tube sheets are welded, thereby improving the operation flow efficiency. In order to prevent the bottom support plate from accidentally shifting during the critical stage of assembly, the present invention provides an auxiliary fixing component at the head of the bottom support plate, and fixes the component to the side of the follower top pressure component. When the follower flipping component controls the follower top pressure component to move downward and lightly presses the fin tube to limit its position, the auxiliary fixing component will also act on the bottom support plate synchronously to achieve reliable locking of its position. The structural design realizes the linkage coordination of "pressing the fin tube" and "locking the bottom support plate", ensuring the structural stability of the entire assembly process and preventing the fin tube from being offset or plugging in errors due to the sliding of the bottom support plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0029] Figure 2 for Figure 1 Another perspective structural diagram.

[0030] Figure 3 Schematic diagram of the specific structure of the vertical plate.

[0031] Figure 4 Schematic diagram of the structure of the top platform and its connecting parts.

[0032] Figure 5 for Figure 4 Another perspective structural diagram.

[0033] Figure 6 It is a structural diagram of the scraper fixing component.

[0034] Figure 7 It is a structural diagram of the follow-up flip component.

[0035] Figure 8 It is a structural diagram of the scraper fixing assembly and its connecting parts.

[0036] Figure 9 It is a structural diagram of the bottom support plate and its connecting parts.

[0037] Figure 10 It is a structural diagram of the top support plate and its connecting parts.

[0038] In the figure: 1. bottom frame; 2. top platform; 3. diagonal support frame; 4. top horizontal frame; 5. inverted T-slot; 6. electric welding machine; 7. traveling wheel; 8. middle rail; 9. vertical plate; 91. bottom horizontal slot; 92. inclined slot; 93. top horizontal slot; 10. support column; 11. bottom support plate; 111. inverted T block; 110. V-shaped slot; 12. auxiliary clamping block; 120. clamping electric push rod; 13. adjusting electric push rod; 14. U-shaped frame; 15. Common plate; 151, positioning column; 16, driving block; 17, driven gear; 18, horizontal column; 19, vertical T-block; 20, driving column; 21, active gear rod; 22, transverse frame; 23, micro motor; 24, bidirectional screw; 25, synchronization rod; 251, synchronization groove; 26, positioning ring; 27, first vertical rod; 28, protruding shoulder; 29, avoidance groove; 30, second vertical rod; 31, vertical column; 32, mounting block; 33, top support plate. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0041] Reference Figure 1-10An adjustable welding device for air cooler production includes a top platform 2, a bottom frame 1, and a bottom support plate 11. A top platform 2 is provided on the top of the bottom frame 1. The top platform 2 serves as a support platform for welding multiple finned tubes of the entire air cooler to the reserved holes of the tube plate. A bottom support plate 11 is slidingly provided on the top of the top platform 2. Travel wheels 7 are rotatably provided at the four corners of the bottom of the bottom frame 1. An electric welder 6 is provided inside the bottom frame 1. The electric welder 6 is a common welding machine equipment in the prior art, so its specific structure is not disclosed in this application document.

[0042] The bottom of the bottom support plate 11 is symmetrically fixed with an inverted T block 111, and the top of the top platform 2 is symmetrically opened with an inverted T groove 5. The inverted T block 111 is movably inserted into the inverted T groove 5, so the bottom support plate 11 has the ability to move laterally, which is convenient for moving the entire assembly part smoothly to the unloading station after the fin tube and the two tube sheets are welded, thereby improving the efficiency of the operation flow. In order to facilitate the transverse movement of the bottom support plate 11, a handle is additionally provided on the side of the bottom support plate 11. In addition, support columns 10 are fixedly provided at the four corners of the top of the top platform 2, and a top cross frame 4 is fixedly provided on the top of the support column 10. The bottom edge position of the top cross frame 4 is fixedly connected to one end of the diagonal support frame 3, and the other end of the diagonal support frame 3 is fixedly connected to the side of one of the support columns 10. The horizontal length of the top cross frame 4 is greater than the top platform 2. An intermediate rail 8 is fixedly provided on the top of the top cross frame 4, and an electric hoist is slidably provided on the intermediate rail 8. The electric hoist can be used for lifting and releasing the entire welded part.

[0043] The bottom supporting plate 11 is used to quickly and equidistantly carry and distribute multiple fin tubes. A transverse frame 22 is fixedly provided on the top of one end of the top platform 2. Tube sheet fixing components are provided at both ends of the transverse frame 22. The tube sheet fixing components fix and clamp the tube sheet to be welded, and the tube sheet is ready to be docked with multiple fin tubes. The tube sheet fixing component includes a U-shaped frame 14, a common plate 15, and an auxiliary clamping block 12. A horizontal column 18 is fixedly provided at one end of the U-shaped frame 14, and the other end of the horizontal column 18 is rotatably connected to the side of the drive block 16. There are two drive blocks 16 in total. A micro motor 23 is fixedly provided on the side of the transverse frame 22, and a bidirectional screw 24 is fixedly provided on the output end of the micro motor 23. The outer wall of the bidirectional screw 24 is symmetrically provided with external threads with opposite rotation directions. There are two drive blocks 16 symmetrically screwed into the outer wall of the bidirectional screw 24. The height of the drive block 16 is the same as the height of the actual side cavity of the transverse frame 22, and the forward and reverse rotation of the micro motor 23 can be controlled by setting a controller of the micro motor 23 according to the actual length of the fin tube.

[0044] An adjustment electric push rod 13 is vertically fixed on the outer side surface of the U-shaped frame 14, and a common plate 15 is fixed on the output end of the adjustment electric push rod 13. Positioning columns 151 are equidistantly provided on the top of the common plate 15, and the positioning columns 151 extend from the bottom of the U-shaped frame 14. Clamping electric push rods 120 are fixed at both edge positions of the U-shaped frame 14, and an auxiliary clamping block 12 is fixed on the output end of the clamping electric push rod 120. When the clamping electric push rod 120 is extended, the auxiliary clamping block 12 cooperates with the U-shaped frame 14 to weld the tube sheet to be welded.

[0045] A driving block 16 is slidingly provided in the inner cavity of the transverse frame 22, and a follow-up flip assembly is also provided on one side of the driving block 16. When the tube sheet fixing assembly is at the edge of the top platform 2, the follow-up flip assembly controls the U-shaped frame 14 in the tube sheet fixing assembly to face upward, and when the fixed plate fixing assembly drives the tube sheet to dock with multiple finned tubes, the opening direction of the U-shaped frame 14 in the tube sheet fixing assembly is controlled to be horizontal. The follow-up flip assembly includes a vertical plate 9, a driving column 20, a driven gear 17, and an active gear rod 21. A driven gear 17 is fixedly provided at one end of the horizontal column 18. The driving block 16 is movably inserted with a vertical T block 19 in the vertical direction. The vertical T block 19 is movably inserted into the top of the driving block 16. An active gear rod 21 is fixed on the side of the vertical T block 19. Therefore, the active gear rod 21 can move stably in the vertical direction while also moving laterally with the lateral movement of the driving block 16.

[0046] The active gear rod 21 is stably engaged with the side of the driven gear 17, the vertical plate 9 is fixedly arranged on the side of the top platform 2, and a bottom transverse groove 91 is fixedly opened in the middle position of the side of the vertical plate 9. Both ends of the bottom transverse groove 91 are connected with inclined grooves 92, and the other end of the inclined groove 92 is connected with a top transverse groove 93. A driving column 20 is provided on the top of the side of the active gear rod 21, and the driving column 20 is movably inserted into the bottom transverse groove 91 or the inclined groove 92 or the top transverse groove 93. The bottom transverse groove 91 and the top transverse groove 93 are parallel to the horizontal axis of the vertical plate 9. When the driving column 20 is in the bottom transverse groove 91, it will drive the opening of the U-shaped frame 14 to be stably toward the side of the bottom supporting plate 11 through the corresponding structure.

[0047] A follow-up pressing assembly is provided at the middle position of the top of the transverse frame 22. When the two tube sheet fixing assemblies drive the tube sheet close to the multiple finned tubes, the follow-up pressing assembly presses the tops of the multiple finned tubes. The follow-up pressing assembly includes a synchronization rod 25, a protruding shoulder 28, and a top supporting plate 33. V-shaped grooves 110 are equidistantly provided at the bottom of the top supporting plate 33 and the top of the bottom supporting plate 11. A second vertical rod 30 is fixedly provided at one end of the top supporting plate 33, and the second vertical rod 30 is movably inserted into the top of the top platform 2. A first vertical rod 27 is fixedly provided on the top side of the second vertical rod 30. An avoidance groove 29 is provided between the first vertical rod 27 and the second vertical rod 30, and the avoidance groove 29 is movably inserted into the outer wall of the vertical plate 9.

[0048] A synchronization rod 25 is fixedly provided on the top side of one of the active gear rods 21, a protruding shoulder 28 is fixedly provided on the side of the first vertical rod 27, a synchronization groove 251 is opened on the side of the synchronization rod 25, and the protruding shoulder 28 is movably inserted into the synchronization groove 251, and an auxiliary fixing component is provided on the side of the second vertical rod 30. The auxiliary fixing component limits the bottom support plate 11 when multiple fin tubes are docked with the tube sheet.

[0049] The auxiliary fixing assembly includes a mounting block 32, a vertical column 31, and a positioning ring 26. The positioning ring 26 is symmetrically fixed on one end of the bottom support plate 11, and the mounting block 32 is symmetrically fixed on the side of the second vertical rod 30. The vertical column 31 is fixed on the bottom of the mounting block 32, and the vertical column 31 is movably inserted into the interior of the positioning ring 26.

[0050] It should be added that the driving gear rod 21 needs to be properly positioned on the side of the driven gear 17 . When the driving gear rod 21 drives the driven gear 17 to rotate, the opening of the U-shaped frame 14 will rotate to the side of the bottom support plate 11 .

[0051] The specific implementation steps and principles of the present invention are as follows:

[0052] Starting from the side where the bottom support plate 11 is at the edge of the top platform 2, at this time the driving column 20 is inside the top horizontal groove 93, and the openings of the two U-shaped frames 14 are in a vertically upward state. The worker puts the required fin tubes into the V-shaped groove 110 on the top of the bottom support plate 11, and then puts two tube sheets into the two U-shaped frames 14, so that the reserved holes of the tube sheets are inserted into the multiple positioning columns 151, and starts the clamping electric push rod 120. The clamping electric push rod 120 starts to drive the auxiliary clamping block 12 to assist in fixing the tube sheet, and then the bottom support plate 11 is inserted into the side limit position of the transverse frame 22.

[0053] At this time, the worker starts the micro motor 23, and the micro motor 23 drives the bidirectional screw 24 to rotate, thereby driving the two driving blocks 16 to move closer to each other. At this time, the driving column 20 moves from the top transverse groove 93 to the inside of the inclined groove 92 and the bottom transverse groove 91, driving the active gear rod 21 to move downward. In this process, the active gear rod 21 drives the U-shaped frame 14 opening to flip to a horizontal state through the driven gear 17. When the active gear rod 21 moves downward, it will drive the first vertical rod 27 and the second vertical rod 30 to move downward through the synchronous rod 25 and the protruding shoulder 28, and the vertical column 31 is inserted into the inside of the positioning ring 26. At this time, the bottom support plate 11 cannot move horizontally, and the top support plate 33 presses on the top of the bottom support plate 11 to fix multiple fin tubes.

[0054] When the driving column 20 moves to the inside of the bottom transverse groove 91, it will drive the openings of the two U-shaped frames 14 to remain in a horizontal state, and finally the two tube sheets are inserted into the two ends of the multiple fin tubes. Due to the presence of the positioning column 151, the lengths of the two fin tubes inserted into the two tube sheets are the same.

[0055] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. An adjustable welding device for air cooler production, comprising a top platform, a bottom frame, and a bottom support plate, characterized in that: A top platform is provided on the top of the bottom frame, and the top platform serves as a support platform for welding multiple finned tubes of the entire air cooler to the reserved holes of the tube plate; A bottom support plate is slidingly provided on the top of the top platform, and the bottom support plate is used to quickly and equidistantly carry and distribute multiple fin tubes. A transverse frame is fixedly provided on the top of one end of the top platform, and tube sheet fixing assemblies are provided at both ends of the transverse frame. The tube sheet fixing assemblies fix and clamp the tube sheet to be welded, and the tube sheet is ready to be docked with multiple fin tubes. A driving block is slidingly provided in the inner cavity of the transverse frame, and a follow-up flip assembly is further provided on one side of the driving block. When the tube sheet fixing assembly is at the edge of the top platform, the follow-up flip assembly controls the U-shaped frame opening in the tube sheet fixing assembly to face upward, and when the fixing plate fixing assembly drives the tube sheet to dock with the multiple fin tubes, the U-shaped frame opening in the tube sheet fixing assembly is controlled to face horizontally. A follow-up pressing assembly is provided at the middle position of the top of the transverse frame. When the two tube sheet fixing assemblies drive the tube sheet to approach the multiple fin tubes, the follow-up pressing assembly presses the tops of the multiple fin tubes.

2. The adjustable welding device for air cooler production according to claim 1, characterized in that: The tube sheet fixing assembly includes a U-shaped frame, a common plate, and an auxiliary clamping block. A horizontal column is fixedly provided at one end of the U-shaped frame, and the other end of the horizontal column is rotatably connected to the side of the driving block. There are two driving blocks in total. A micro motor is fixedly provided on the side of the transverse frame, and a bidirectional screw is fixedly provided on the output end of the micro motor. The outer wall of the bidirectional screw is symmetrically provided with external threads with opposite rotation directions. Two driving blocks are symmetrically screwed into the outer wall of the bidirectional screw, and an adjustment electric push rod is vertically fixed on the outer side of the U-shaped frame.

3. The adjustable welding device for air cooler production according to claim 2, characterized in that: A common plate is fixedly provided at the output end of the adjustment electric push rod, positioning columns are equidistantly provided on the top of the common plate, and the positioning columns extend from the bottom of the U-shaped frame. Clamping electric push rods are fixedly provided at the two edge positions of the U-shaped frame, and an auxiliary clamping block is fixedly provided at the output end of the clamping electric push rod.

4. The adjustable welding device for air cooler production according to claim 2, characterized in that: The follow-up flip assembly includes a vertical plate, a driving column, a driven gear, and an active gear rod. A driven gear is fixedly provided at one end of the horizontal column. A vertical T block is movably inserted into the driving block along the vertical direction. The vertical T block is movably inserted into the top of the driving block. An active gear rod is fixedly provided on the side of the vertical T block.

5. The adjustable welding device for air cooler production according to claim 4, characterized in that: The active gear rod is stably engaged with the side surface of the driven gear, the vertical plate is fixedly arranged on the side surface of the top platform, a bottom transverse groove is fixedly opened in the middle position of the side surface of the vertical plate, both ends of the bottom transverse groove are connected with inclined grooves, and the other end of the inclined groove is connected with the top transverse groove, a driving column is provided on the top of the side surface of the active gear rod, and the driving column is movably inserted into the bottom transverse groove, the inclined groove or the top transverse groove.

6. The adjustable welding device for air cooler production according to claim 5, characterized in that: The follow-up top pressure assembly includes a synchronization rod, a protruding shoulder, and a top supporting plate. V-shaped grooves are equidistantly provided at the bottom of the top supporting plate and the top of the bottom supporting plate. A second vertical rod is fixedly provided at one end of the top supporting plate, and the second vertical rod is movably inserted into the top of the top platform. A first vertical rod is fixedly provided on the top of the side of the second vertical rod, and an avoidance groove is provided between the first vertical rod and the second vertical rod, and the avoidance groove is movably inserted into the outer wall of the vertical plate.

7. The adjustable welding device for air cooler production according to claim 6, characterized in that: A synchronization rod is fixedly provided on the top of the side of one of the active gear rods, a protruding shoulder is fixedly provided on the side of the first vertical rod, a synchronization groove is opened on the side of the synchronization rod, and the protruding shoulder is movably inserted into the synchronization groove, and an auxiliary fixing component is provided on the side of the second vertical rod. The auxiliary fixing component limits the bottom support plate when multiple fin tubes are docked with the tube sheet.

8. The adjustable welding device for air cooler production according to claim 7, characterized in that: The auxiliary fixing assembly includes a mounting block, a vertical column, and a positioning ring. A positioning ring is symmetrically fixed on one end of the bottom supporting plate, a mounting block is symmetrically fixed on the side of the second vertical rod, and a vertical column is fixed on the bottom of the mounting block. The vertical column is movably inserted into the interior of the positioning ring.

9. The adjustable welding device for air cooler production according to claim 1, characterized in that: The bottom corners of the bottom frame are all rotatably provided with walking wheels, an electric welding machine is provided inside the bottom frame, inverted T blocks are symmetrically fixedly provided at the bottom of the bottom support plate, and inverted T grooves are symmetrically opened at the top of the top platform, and the inverted T blocks are movably inserted into the inverted T grooves.

10. The adjustable welding device for air cooler production according to claim 1, characterized in that: The top platform is fixed with support columns at the four corners of the top, and a top cross frame is fixedly provided on the top of the support columns. The bottom edge of the top cross frame is fixedly connected to one end of the diagonal support frame, and the other end of the diagonal support frame is fixedly connected to the side of one of the support columns.

Images