A double-station automatic welding device for aluminum pipe and aluminum plate

Abstract

This invention relates to the field of welding equipment technology and discloses a dual-station automatic welding device for aluminum tubes and aluminum plates. The device includes a welding table with a lifting and translating mechanism. Two welding torches are mounted on the welding table, and lifting baffles are provided outside the two welding torches. A left-right moving worktable mechanism is located directly below the two welding torches. Workstations are fixedly connected to the outer walls of both sides of the top of the left-right moving worktable mechanism, and placement plates one and two are fixedly connected to the top of each workstation. This invention achieves continuous automated welding through alternating dual-station operation, significantly improving production efficiency. The use of a rapid positioning and stable clamping mechanism ensures accurate welding positions for aluminum tubes and aluminum plates, effectively improving welding quality. The lifting baffle protection and flexible clamping design balance operational safety and workpiece protection. The overall structure is compact, adaptable to the welding needs of various parts, and fills a market gap.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and in particular to a dual-station automatic welding equipment for aluminum tubes and aluminum plates. Background Technology

[0002] With the continuous improvement of automation in the manufacturing industry, in order to further improve production efficiency and ensure product quality, more and more enterprises are beginning to focus on the research and development and application of automated processing and testing equipment. Currently, in the welding production of metal materials, especially the welding process between aluminum plates and aluminum tubes, manual labor is still the primary method. Manual welding requires a high level of technical skill from operators, who typically need to hold a welder's operating certificate to work. However, this method of operation has significant limitations.

[0003] Aluminum tubes are widely used in gas-liquid separators of air conditioning systems, typically in a U-shape. To reduce manufacturing costs, companies generally use U-shaped tubes made of aluminum. To ensure the shock resistance and structural stability of the gas-liquid separator during operation, the U-shaped aluminum tube needs to be reliably welded to an aluminum plate to form a stable connection. Currently, this welding process is still mainly done manually, resulting in low production efficiency and inconsistent welding quality.

[0004] Specifically, the quality of manual welding is easily affected by factors such as the operator's skill level, working condition, and proficiency. It suffers from poor welding stability and is prone to defects such as uneven welds, incomplete welds, and porosity, leading to reduced product consistency and pass rates, making it difficult to meet the stringent quality stability requirements of enterprises. Secondly, manual welding is inefficient and labor-intensive. The prolonged high-temperature, high-intensity welding environment not only affects employee health but also limits production pace, increasing production costs for enterprises. Furthermore, manual welding offers poor controllability during the production process, hindering the digitization and standardization of welding parameters, further restricting the enterprise's intelligent manufacturing capabilities.

[0005] In summary, the existing welding process for aluminum plates and aluminum tubes (especially U-shaped aluminum tubes for gas-liquid separators) still relies mainly on manual labor, resulting in low welding efficiency, poor quality stability, and high dependence on operators. To address these shortcomings, there is an urgent need to develop equipment capable of automating the welding of aluminum plates and aluminum tubes, replacing traditional manual welding methods, thereby improving production efficiency, reducing labor costs, and ensuring consistent product quality. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a dual-station automatic welding device for aluminum tubes and aluminum plates.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A dual-station automatic welding device for aluminum tubes and aluminum plates includes a welding table. A lifting and translating mechanism is provided on the welding table, and a double welding gun is mounted on the lifting and translating mechanism. A lifting baffle is provided outside the double welding gun, and a left-right moving worktable mechanism is provided directly below the double welding gun. Workstations are fixedly connected to the outer walls of both sides of the top of the left-right moving worktable mechanism. Placement plate one and placement plate two are fixedly connected to the top of each workstation. Placement plate one and placement plate two each have two locking slots. A lifting clamping drive mechanism is provided between placement plate one and placement plate two. A lifting pressing plate is mounted on the lifting clamping drive mechanism, and two flush plates are fixedly connected to the outer walls of both sides of the bottom of the lifting pressing plate. A placement plate is provided directly below the bottom of the lifting pressing plate, and an elastic telescopic force-applying mechanism is provided between the placement plate and the workstation. A positioning plate is provided on one side of placement plate two.

[0009] Furthermore, the lifting and clamping drive mechanism includes a bidirectional threaded rod, which is rotatably connected between the first placement plate and the second placement plate. A servo motor is provided at one end of the bidirectional threaded rod, and threaded sliders are provided on both outer walls of the bidirectional threaded rod. Pull-up connecting plates are hinged between the top of the two threaded sliders and the bottom of the lifting and pressing plate.

[0010] Furthermore, the elastic telescopic force application mechanism includes two hollow cylinders, both of which are embedded in the workstation, and each hollow cylinder has a slidably connected extrusion rod at its top. The top end of the extrusion rod is fixedly connected to a placement plate, and the bottom end of the extrusion rod is fixedly connected to a sliding plate. An extrusion clamping spring is fixedly connected between the sliding plate and the inner wall of the bottom of the hollow cylinder.

[0011] Furthermore, each of the workstations is provided with two rotating shafts on one side, and the two rotating shafts are rotatably connected to the welding platform. The outer walls of the two rotating shafts are fixedly connected with driven gears, and the two driven gears mesh with each other.

[0012] Furthermore, one of the driven gears is engaged with a drive gear on one side, and a center-aligned drive motor is provided at the bottom of the drive gear.

[0013] Furthermore, each of the two rotating shafts has a swing plate fixedly connected to its top outer wall, and a centering adjustment roller is provided at the bottom end of each swing plate.

[0014] Furthermore, two rotating shafts are symmetrically rotatably connected to the outer wall of the placement plate one near the threaded slider, and a rotating gear is fixedly connected to the outer wall of the middle part of each of the two rotating shafts two. A rack is meshed above each of the rotating gears, and the rack is slidably connected to the outer wall of the placement plate one.

[0015] Furthermore, a force-applying plate is provided between the two racks and the threaded slider, and a push plate is hinged to the outer wall of the force-applying plate and the corresponding outer wall of the rack. A return spring is fixedly connected between the force-applying plate and the first placement plate, and an L-shaped push plate is provided on one side of the force-applying plate. The L-shaped push plate is fixedly connected to the top outer wall of the threaded slider. A clamping plate is fixedly connected to one end of each of the two rotating shafts, and a protective rubber pad is attached to the outer wall of the clamping plate facing the slot.

[0016] The beneficial effects of this invention are as follows:

[0017] This equipment achieves continuous automated welding through alternating dual-station operation, significantly improving production efficiency. It employs a rapid positioning and stable clamping mechanism to ensure precise welding positions between aluminum tubes and plates, effectively enhancing welding quality. The lifting baffle protection and flexible clamping design balance operational safety with workpiece protection. Its compact overall structure adapts to the welding needs of various parts, filling a market gap. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of a dual-station automatic welding equipment for aluminum tubes and aluminum plates.

[0019] Figure 2 This is a schematic diagram of the workstation structure of a dual-station automatic welding equipment for aluminum tubes and aluminum plates.

[0020] Figure 3 A schematic diagram of the outer wall structure of the swing plate in a dual-station automatic welding equipment for aluminum tubes and aluminum plates;

[0021] Figure 4 A dual-station automatic welding device for aluminum tubes and aluminum plates. Figure 2 Front view of the structural diagram;

[0022] Figure 5 A schematic diagram of the cross-sectional structure of a hollow cylinder for a dual-station automatic welding equipment for aluminum tubes and aluminum plates;

[0023] Figure 6 This is a schematic diagram of the placement plate structure for a dual-station automatic welding equipment for aluminum tubes and aluminum plates.

[0024] In the diagram: 1. Welding table; 2. Left and right moving worktable mechanism; 3. Lifting and translating mechanism; 4. Lifting baffle; 5. Double welding gun; 6. Workstation; 7. Servo motor; 8. Placement plate one; 9. Bidirectional threaded rod; 10. Placement plate two; 11. Positioning plate; 12. Clamping slot; 13. Swing plate; 14. Centering adjustment roller; 15. Driven gear; 16. Rotating shaft one; 17. Drive gear; 18. Centering alignment drive motor; 19. Pull connecting plate; 20. Lifting and pressing plate; 21. Placement plate; 22. Flat plate; 23. Hollow cylinder; 24. L-shaped push plate; 25. Threaded slider; 26. Extrusion clamping spring; 27. Extrusion top rod; 28. Slide plate; 29. ​​Force plate; 30. Rotating gear; 31. Rotating shaft two; 32. Protective rubber pad; 33. Clamping plate; 34. Rack; 35. Return spring; 36. Push plate. Detailed Implementation

[0025] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0026] Reference Figure 1 , Figure 2 and Figure 4A dual-station automatic welding device for aluminum tubes and plates includes a welding table 1, a lifting and translating mechanism 3, and a double welding gun 5 mounted on the welding table 1. A lifting baffle 4 is provided outside the double welding gun 5, and a left-right moving worktable mechanism 2 is located directly below the double welding gun 5. Workstations 6 are fixedly connected to the outer walls of both sides of the top of the left-right moving worktable mechanism 2. Placement plates 1 and 2 are respectively fixedly connected to the top of the two workstations 6. Each placement plate 1 and placement plate 2 has two locking slots 12, and a lifting clamping drive mechanism is provided between the placement plates 1 and 2. A lifting clamping drive mechanism is mounted on the lifting clamping drive mechanism. A lifting and pressing plate 20 is provided, with two flat plates 22 fixedly connected to the outer walls of both sides of the bottom of the lifting and pressing plate 20. A placement plate 21 is provided directly below the bottom of the lifting and pressing plate 20, and an elastic telescopic force-applying mechanism is provided between the placement plate 21 and the worktable 6. A positioning plate 11 is provided on one side of the placement plate 20. When it is necessary to weld the aluminum plate onto the U-shaped aluminum tube, the U-shaped aluminum tube is first placed in the slot 12 of the placement plate 10 and the placement plate 21, and the shorter end of the U-shaped aluminum tube is tightly attached to the positioning plate 11. At this time, the placement of the U-shaped aluminum tube is completed. Then, the aluminum plate is inserted into the gap between the lifting and pressing plate 20 and the placement plate 21. The flat plate 22 prevents the aluminum plate from tilting, ensuring the precision of the welding work. After the aluminum plate is placed, the lifting clamping drive mechanism is activated, causing the lifting pressing plate 20 to move downward. During this process, the lifting pressing plate 20 applies force to the placement plate 21, while the elastic telescopic force application mechanism applies an upward force to the placement plate 21. Thus, the two work together to clamp and fix the aluminum plate, preventing it from shaking during downward movement and causing the welding position to shift. Through the cooperation of the lifting clamping drive mechanism and the elastic telescopic force application mechanism, the aluminum plate can be moved downward stably until both ends of the aluminum plate contact the outer wall of the U-shaped aluminum tube. Then, the lifting and translation mechanism 3 is activated, allowing the double welding... Welding gun 5 welds aluminum plates and U-shaped aluminum tubes. During the welding process, the lifting baffle 4 shields the arc light generated during welding. After welding, the left-right moving worktable mechanism 2 is activated, moving the U-shaped aluminum tube and aluminum plate on another workstation 6 to below the dual welding gun 5 for welding. The welded parts are then removed from workstation 6, and the U-shaped aluminum tube and aluminum plate are reinstalled for the next welding operation. This process allows for welding at one workstation while installing products at another, significantly increasing production capacity. Furthermore, by achieving full automation and flexibility in the welding process, it effectively meets the urgent need for automated welding of such parts. The entire welding equipment possesses a high degree of adaptability and automation, filling the gap in the current market for automated welding solutions for such parts and helping enterprises promote the automation upgrade and transformation of production manufacturing. In addition, it can be widely used in automatic welding devices for fixing plates of various parts, possessing good versatility and promotional value.

[0027] Reference Figure 2 and Figure 4 As a further embodiment of the present invention, the lifting clamping drive mechanism includes a bidirectional threaded rod 9, which is rotatably connected between the first placement plate 8 and the second placement plate 10. A servo motor 7 is provided at one end of the bidirectional threaded rod 9, and threaded sliders 25 are provided on both outer walls of the bidirectional threaded rod 9. A pull connecting plate 19 is hinged between the top of the two threaded sliders 25 and the bottom of the lifting pressing plate 20. By rotating the bidirectional threaded rod 9, the servo motor 7 can make the two threaded sliders 25 on its outer wall move closer or further away from each other, thereby enabling the lifting pressing plate 20 to move up or down by pulling the connecting plate 19.

[0028] Reference Figure 4 and Figure 5 As a further embodiment of the present invention, the elastic telescopic force application mechanism includes two hollow cylinders 23, both of which are embedded in the worktable 6. Each hollow cylinder 23 has a slidably connected compression rod 27 at its top. The top of the compression rod 27 is fixedly connected to the shelf 21, and the bottom of the compression rod 27 is fixedly connected to a sliding plate 28. A compression clamping spring 26 is fixedly connected between the sliding plate 28 and the bottom inner wall of the hollow cylinder 23. When the lifting and pressing plate 20 applies force to the shelf 21, the compression rod 27 retracts into the hollow cylinder 23. At this time, the compression rod 27 compresses the compression clamping spring 26 through the sliding plate 28. After the compression clamping spring 26 is compressed, it generates an upward force, thereby causing the shelf 21 to move upward through the compression rod 27.

[0029] Reference Figure 1 , Figure 2 and Figure 3 As a further embodiment of the present invention, two rotating shafts 16 are provided on one side of the workstation 6, and the two rotating shafts 16 are rotatably connected to the welding table 1. Driven gears 15 are fixedly connected to the outer walls of the two rotating shafts 16, and the two driven gears 15 mesh with each other.

[0030] Reference Figure 3 As a further embodiment of the present invention, one of the driven gears 15 is meshed with a drive gear 17 on one side, and a center-aligned drive motor 18 is provided at the bottom of the drive gear 17. When the aluminum plate is inserted into the gap between the lifting and pressing plate 20 and the placement plate 21, and is located between the two flat plates 22, the center-aligned drive motor 18 will start, thereby causing the rotating shaft 16 to rotate through the meshing transmission of the drive gear 17 and the two driven gears 15.

[0031] Reference Figure 2 and 3As a further embodiment of the present invention, swing plates 13 are fixedly connected to the top outer walls of both rotating shafts 16, and a centering adjustment roller 14 is provided at one bottom end of each swing plate 13. When the rotating shaft 16 moves, the centering adjustment roller 14 on the swing plate 13 moves closer to the outer wall of the aluminum plate until both centering adjustment rollers 14 are in contact with the outer wall of the aluminum plate. At this time, the aluminum plate can be centered, and there is no need to manually adjust the position of the aluminum plate, thereby making the welding accuracy more accurate and greatly improving the product quality.

[0032] Working Principle: When welding an aluminum plate onto a U-shaped aluminum tube, firstly, place the U-shaped aluminum tube into the slot 12 of the placement plate 1 (8) and placement plate 2 (10), ensuring the shorter end of the U-shaped aluminum tube is flush against the positioning plate 11. This completes the placement of the U-shaped aluminum tube. Next, insert the aluminum plate into the gap between the lifting and pressing plate 20 and the placement plate 21. The two flush plates 22 at the bottom of the lifting and pressing plate 20 prevent the aluminum plate from tilting, ensuring precise welding. After the aluminum plate is placed, the lifting and clamping drive mechanism is activated, causing the lifting and pressing plate 20 to move downwards. During this process, the lifting and pressing plate 20 applies force to the placement plate 21, while the elastic telescopic force application mechanism applies an upward force to the placement plate 21. The two mechanisms work together to clamp and fix the aluminum plate, preventing it from wobbling during downward movement and causing the welding position to shift. The lifting and clamping drive mechanism, in conjunction with the elastic telescopic force application mechanism, enables the aluminum plate to move stably downwards until both ends of the aluminum plate contact the outer wall of the U-shaped aluminum tube. Then, the lifting and translating mechanism 3 is activated, allowing the dual welding torch 5 to weld the aluminum plate and the U-shaped aluminum tube. During welding, the lifting baffle 4 shields the arc light generated during welding. After welding is completed, the left-right moving worktable mechanism 2 is activated, moving the U-shaped aluminum tube and aluminum plate on another workstation 6 to below the dual welding torch 5 for welding. The welded part is then removed from workstation 6, and the U-shaped aluminum tube and aluminum plate are reinstalled for the next welding operation. This process allows for welding at one workstation while installing products at another, significantly increasing production capacity. Furthermore, by achieving full automation and flexibility in the welding process, it effectively meets the urgent need for automated welding of such parts. The entire welding equipment possesses a high degree of adaptability and automation, filling the gap in the current market for automated welding solutions for such parts and helping enterprises promote the automation upgrade and transformation of their manufacturing processes. In addition, it can be widely used in automatic welding devices for fixing plates of various parts, and has good versatility and promotion value.

[0033] Reference Figure 4 and Figure 5As a further embodiment of the present invention, two rotating shafts 31 are symmetrically rotatably connected on the outer wall of the placement plate 8 near the threaded slider 25, and a rotating gear 30 is fixedly connected to the outer wall of the middle part of each of the two rotating shafts 31. A rack 34 is meshed above each rotating gear 30, and the rack 34 is slidably connected to the outer wall of the placement plate 8.

[0034] Reference Figure 5 As a further embodiment of the present invention, a force-applying plate 29 is provided between the two racks 34 and the threaded slider 25, and a push plate 36 is hinged to the outer wall of the force-applying plate 29 and the corresponding outer wall of the rack 34. A return spring 35 is fixedly connected between the force-applying plate 29 and the placement plate 8, and an L-shaped push plate 24 is provided on one side of the force-applying plate 29. The L-shaped push plate 24 is fixedly connected to the top outer wall of the threaded slider 25. A clamping plate 33 is fixedly connected to one end of each of the two rotating shafts 31, and a protective rubber pad 32 is attached to the outer wall of the clamping plate 33 facing the slot 12. When the servo motor 7 moves the two threaded sliders 25 on the bidirectional threaded rod 9 away from each other, the threaded slider 25 with the L-shaped push plate 24 fixed thereon will move its top L-shaped push plate 24 closer to the force-applying plate 29. As the threaded slider 25 moves, the L-shaped push plate 24 moves closer to the force-applying plate 29. The push plate 24 will contact the surface of the force plate 29 and press the force plate 29 to compress the return spring 35 and bring it close to the placement plate 8. During this process, the force plate 29 will push the two racks 34 away from each other through the push plate 36. The racks 34 will mesh with the rotating gears 30 on the rotating shaft 31 respectively. When the racks 34 move, the meshing of the racks 34 and the rotating gears 30 will make the rotating shaft 31 rotate. At this time, the rotating shaft 31 will bring the clamping plate 33 close to the U-shaped aluminum tube placed in the slot 12, thereby clamping and fixing the U-shaped aluminum tube in the slot 12, preventing the U-shaped aluminum tube from shaking and shifting during welding, which would cause the welding position to deviate. In addition, the protective rubber pad 32 can prevent the clamping plate 33 from applying force to the U-shaped aluminum tube and causing damage to the surface of the U-shaped aluminum tube, thereby significantly improving product quality.

[0035] Working principle: When the servo motor 7 causes the two threaded sliders 25 on the bidirectional threaded rod 9 to move away from each other, the threaded slider 25 with the fixed L-shaped push plate 24 will bring the L-shaped push plate 24 at its top closer to the force plate 29. As the threaded slider 25 moves, the L-shaped push plate 24 will contact the surface of the force plate 29 and press the force plate 29 to compress the return spring 35 closer to the placement plate 8. During this process, the force plate 29 will cause the two racks 34 to move away from each other through the push plate 36, and the racks 34 will respectively interact with the rotating shaft 31. When the rack 34 moves, the meshing of the rack 34 and the rotating gear 30 causes the rotating shaft 31 to rotate. At this time, the rotating shaft 31 brings the clamping plate 33 close to the U-shaped aluminum tube placed in the slot 12, thereby clamping and fixing the U-shaped aluminum tube in the slot 12. This prevents the U-shaped aluminum tube from shaking and shifting during welding, which could cause deviation in the welding position. Furthermore, the protective rubber pad 32 can prevent damage to the surface of the U-shaped aluminum tube when the clamping plate 33 applies force to it, thus significantly improving product quality.

[0036] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A dual-station automatic welding device for aluminum tubes and aluminum plates, comprising a welding table (1), characterized in that, The welding table (1) is provided with a lifting and translation mechanism (3), and a double welding gun (5) is installed on the lifting and translation mechanism (3). A lifting baffle (4) is provided on the outside of the double welding gun (5), and a left and right moving worktable mechanism (2) is provided directly below the double welding gun (5). The top two outer walls of the left and right moving worktable mechanism (2) are fixedly connected to workstations (6), and the tops of the two workstations (6) are respectively fixedly connected to a placement plate one (8) and a placement plate two (10). The placement plate one (8) and the placement plate two (10) are respectively fixedly connected to the tops of the two workstations (6). Two slots (12) are provided, and a lifting clamping drive mechanism is provided between the first placement plate (8) and the second placement plate (10). A lifting pressing plate (20) is installed on the lifting clamping drive mechanism, and two flat plates (22) are fixedly connected to the outer walls on both sides of the bottom of the lifting pressing plate (20). A storage plate (21) is provided directly below the bottom of the lifting pressing plate (20), and an elastic telescopic force application mechanism is provided between the storage plate (21) and the worktable (6). A positioning plate (11) is provided on one side of the second placement plate (10). The elastic telescopic force application mechanism includes two hollow cylinders (23), both hollow cylinders (23) are embedded in the work platform (6), and the top of each hollow cylinder (23) is slidably connected to a pressing rod (27). The top of the pressing rod (27) is fixedly connected to the placement plate (21), and the bottom of the pressing rod (27) is fixedly connected to a sliding plate (28). A pressing clamping spring (26) is fixedly connected between the sliding plate (28) and the bottom inner wall of the hollow cylinder (23). Two rotating shafts (16) are provided on one side of the workstation (6), and the two rotating shafts (16) are rotatably connected to the welding table (1). The outer walls of the two rotating shafts (16) are fixedly connected with driven gears (15), and the two driven gears (15) mesh with each other. One of the driven gears (15) is meshed with a drive gear (17) on one side, and a center-aligned drive motor (18) is provided at the bottom of the drive gear (17). Both of the two rotating shafts (16) have a swing plate (13) fixedly connected to the top outer wall, and a centering adjustment roller (14) is provided at the bottom end of each swing plate (13).

2. The dual-station automatic welding equipment for aluminum tubes and aluminum plates according to claim 1, characterized in that, The lifting clamping drive mechanism includes a bidirectional threaded rod (9), which is rotatably connected between the first placement plate (8) and the second placement plate (10). A servo motor (7) is provided at one end of the bidirectional threaded rod (9), and threaded sliders (25) are provided on both outer walls of the bidirectional threaded rod (9). Pull-up connecting plates (19) are hinged between the top of the two threaded sliders (25) and the bottom of the lifting pressing plate (20).

3. The dual-station automatic welding equipment for aluminum tubes and aluminum plates according to claim 1, characterized in that, Two rotating shafts (31) are symmetrically rotatably connected on the outer wall of the placement plate (8) near the threaded slider (25), and a rotating gear (30) is fixedly connected on the outer wall of the middle part of the two rotating shafts (31). A rack (34) is meshed above the rotating gear (30), and the rack (34) is slidably connected to the outer wall of the placement plate (8).

4. The dual-station automatic welding equipment for aluminum tubes and aluminum plates according to claim 3, characterized in that, A force-applying plate (29) is provided between the two racks (34) and the threaded slider (25), and a push plate (36) is hinged on the outer wall of the force-applying plate (29) and the corresponding rack (34). A return spring (35) is fixedly connected between the force-applying plate (29) and the placement plate (8), and an L-shaped push plate (24) is provided on one side of the force-applying plate (29). The L-shaped push plate (24) is fixedly connected to the top outer wall of the threaded slider (25). A clamping plate (33) is fixedly connected to one end of the two rotating shafts (31), and a protective rubber pad (32) is attached to the outer wall of the clamping plate (33) facing the slot (12).

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