Fin welding device

Abstract

The utility model belongs to heat exchanger technical field discloses fin welding device. Fin welding device includes workstation, moving mechanism and welding mechanism, is equipped with fixed tooling on the workstation, fixed tooling is used for positioning heat exchange pipe, at least one side of fixed tooling is equipped with moving mechanism, and the moving end of moving mechanism can move along the axial movement of heat exchange pipe, and the moving end of moving mechanism is equipped with welding mechanism, and welding mechanism includes fin box, takes material subassembly and welding subassembly, and fin box is used for depositing multiple fins, and the side of fin box towards fixed tooling is equipped with opening, and takes material subassembly is used for taking out fin from opening in proper order, and makes fin and the axis of heat exchange pipe present preset angle and is positioned on the outer wall of heat exchange pipe, and welding subassembly is used for welding to the contact position of fin and heat exchange pipe, and this fin welding device reduces the labor intensity of artificial, improves the welding quality and welding efficiency, and can greatly reduce the production cost of heat exchanger.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a fin welding device. Background Technology

[0002] Finned heat exchange tubes expand the heat transfer area by welding fins to the outer wall of a smooth tube. Simultaneously, the fins disturb the fluid, causing continuous breakage of the fluid boundary layer, thus significantly improving the heat transfer coefficient. Finned heat exchange tubes are widely used in industrial flue gas waste heat recovery, boiler energy saving, and thermal energy utilization devices.

[0003] Currently, fin welding is mainly done manually. The welding quality depends on the operator's skill and experience, and problems such as incomplete welds and misaligned welds are prone to occur, resulting in poor weld stability and consistency. Furthermore, manual welding is labor-intensive, operates in harsh environments, and has low efficiency, making it difficult to meet the needs of mass production.

[0004] Therefore, there is an urgent need for a fin welding device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a fin welding device that effectively improves the welding quality and efficiency of inclined fins, reduces manual labor intensity, and saves production costs.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] Fin welding apparatus, comprising:

[0008] A workbench is provided with a fixed fixture for positioning the heat exchange tubes.

[0009] The moving mechanism is provided on at least one side of the fixed fixture, and the moving end of the moving mechanism can move along the axial direction of the heat exchange tube.

[0010] The welding mechanism is provided at the moving end of the moving mechanism. The welding mechanism includes a fin box, a material handling component, and a welding component. The fin box is used to store multiple fins. The fin box has an opening on the side facing the fixed fixture. The material handling component is used to sequentially take out the fins from the opening of the fin box and position the fins on the outer wall of the heat exchange tube at a preset angle with the axis of the heat exchange tube. The welding component is used to weld the contact position between the fins and the heat exchange tube.

[0011] Optionally, the fixed tooling includes:

[0012] The first slide rail is mounted on the worktable;

[0013] The first limiting block is fixed to one end of the first slide rail, and the first limiting block is provided with a first limiting groove;

[0014] The second limiting block is slidably disposed on the first slide rail. The second limiting block is provided with a second limiting groove. The first limiting groove and the second limiting groove can be respectively engaged with the outer wall of the heat exchange tube to support the heat exchange tube.

[0015] Optionally, the fixing fixture further includes a positioning element, which is disposed at one end of the first slide rail near the first limiting block. The positioning element is used to provide a reference surface for the heat exchange tube, and the end of the heat exchange tube near the first limiting block can abut against the reference surface.

[0016] Optionally, the finned box includes:

[0017] The housing includes a first sidewall and a second sidewall opposite to each other along a first direction, and a third sidewall and a fourth sidewall opposite to each other along a second direction. The third sidewall has the opening at one end near the first sidewall. The first direction is parallel to the axial direction of the heat exchange tube, and the second direction is perpendicular to the first direction.

[0018] The first elastic component includes a first sliding plate and a first elastic member. The first sliding plate is slidably disposed in the housing along the first direction. One end of the first elastic member abuts against the first sliding plate, and the other end abuts against the second side wall.

[0019] The second elastic component includes a second sliding plate and a second elastic member. The second sliding plate is slidably disposed in the housing along a second direction. One end of the second elastic member abuts against the second sliding plate, and the other end abuts against the fourth side wall.

[0020] The first sidewall, the third sidewall, the first sliding plate, and the second sliding plate together form a limiting space. A plurality of fins are arranged sequentially in the limiting space along the first direction, and the end of the fin with a groove faces the opening.

[0021] Optionally, the first sidewall is provided with an avoidance opening, and the material handling component can adsorb the fins from the avoidance opening and remove the fins from the opening into the fin box.

[0022] Optionally, the thickness of the fin is t0, and the thickness of the opening is t1, where t0 ≤ t1 < 2t0.

[0023] Optionally, the material handling assembly includes a first multi-axis robot and a material handling component, wherein the material handling component is disposed at the end of the first multi-axis robot and is a magnetic component or a vacuum suction cup.

[0024] Optionally, the welding assembly includes a second multi-axis robot and a welding torch, the welding torch being disposed at the end of the second multi-axis robot and used for welding the contact position between the fins and the heat exchange tube.

[0025] Optionally, the moving mechanism includes:

[0026] A linear motion component is disposed on the worktable, and a moving block is provided at the output end of the linear motion component. The welding mechanism is disposed on the moving block.

[0027] A power source is connected to the input end of the linear motion component, and the power source is used to provide power to the linear motion component so that the moving block moves along the axial direction of the heat exchange tube.

[0028] Optionally, the moving mechanism further includes a guide rail, and the moving block is slidably connected to the guide rail.

[0029] Beneficial effects:

[0030] The fin welding device provided by this utility model uses a fixed fixture to precisely position the heat exchange tube. The material handling component accurately places the fins on the outer wall of the heat exchange tube at a preset angle, and then the welding component completes the welding. This ensures the stability and consistency of the weld, avoids problems such as incomplete welding and weld misalignment that are prone to occur in manual welding, and effectively improves the welding quality and efficiency of the inclined fins. After welding a set of fins, the moving mechanism on the side of the fixed fixture drives the corresponding welding mechanism to move forward along the axial direction of the heat exchange tube, which can continuously complete the welding of multiple fins. The entire welding process is highly automated, significantly reduces manual operation, reduces labor intensity, and lowers the manufacturing cost of the heat exchanger. Attached Figure Description

[0031] Figure 1 These are schematic diagrams of the existing technologies for obliquely placed U-shaped fins, obliquely placed H-shaped fins, and straight H-shaped fins.

[0032] Figure 2 This is a schematic diagram of a structure in which obliquely placed U-shaped fins are welded onto a heat exchange tube.

[0033] Figure 3 This is a schematic diagram of the fin welding device provided in a specific embodiment of the present invention from a first-view perspective.

[0034] Figure 4 This is a schematic diagram of the fin welding device provided in a specific embodiment of the present invention from a second perspective.

[0035] Figure 5 This is a schematic diagram of the finned box provided in a specific embodiment of the present invention from a first-view perspective;

[0036] Figure 6 This is a schematic diagram of the finned box provided in a specific embodiment of the present invention from a second perspective.

[0037] Figure 7 yes Figure 5 A magnified view of a portion of point A in the middle.

[0038] In the picture:

[0039] 10. Fin; 11. Angled U-shaped fin; 111. First groove; 12. Angled H-shaped fin; 13. Straight H-shaped fin; 131. Second groove; 20. Heat exchange tube;

[0040] 100. Workbench;

[0041] 200. Fixed fixture; 210. First slide rail; 220. First limit block; 230. Second limit block; 240. Positioning component; 241. Reference surface;

[0042] 300. Moving mechanism; 310. Linear movement assembly; 320. Moving block; 330. Guide rail;

[0043] 400 Welding mechanism; 410 Finned box; 411 Box body; 4110 Opening; 4111 First side wall; 41111 Clearance opening; 4112 Second side wall; 4113 Third side wall; 4114 Fourth side wall; 412 First elastic component; 4121 First sliding plate; 4122 First elastic element; 413 Second elastic component; 4131 Second sliding plate; 4132 Second elastic element; 420 Material handling component; 421 First multi-axis robot; 422 Material handling component; 430 Welding component; 431 Second multi-axis robot; 432 Welding torch. Detailed Implementation

[0044] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0045] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0048] This embodiment provides a fin welding device for welding fins 10 onto heat exchange tubes 20, improving welding efficiency and welding quality. Figure 1 As shown, the fin 10 can be an oblique U-shaped fin 11, an oblique H-shaped fin 12, or a straight H-shaped fin 13. The oblique U-shaped fin 11 is formed by creating a first groove 111 in a U-shaped plate. When the oblique U-shaped fin 11 is installed obliquely on the heat exchange tube 20, the shape of the first groove 111 matches the outer wall of the heat exchange tube 20, thus achieving a tight fit. The oblique H-shaped fin 12 is formed by creating a first groove 111 in a rectangular plate, allowing it to better fit the outer wall of the heat exchange tube 20 when installed obliquely. The straight H-shaped fin 13 is formed by creating a second groove 131 in a rectangular plate and is typically installed perpendicular to the axis of the heat exchange tube 20 on the outer wall of the heat exchange tube 20. The fin welding device in this embodiment can accurately weld the above three different shapes of fins 10, ensuring the stability and consistency of the weld, thereby improving the welding quality and the overall heat exchange performance of the heat exchange tube 20.

[0049] like Figure 2 , Figure 3 as well as Figure 4As shown, this embodiment takes welding oblique U-shaped fins 11 onto heat exchange tube 20 as an example to illustrate the specific structure of the fin welding device. The fin welding device includes a worktable 100, a moving mechanism 300, and a welding mechanism 400. The worktable 100 is provided with a fixed fixture 200, which is used to position the heat exchange tube 20. At least one side of the fixed fixture 200 is provided with the moving mechanism 300, and the moving end of the moving mechanism 300 can move along the axial direction of the heat exchange tube 20. The moving end of the moving mechanism 300 is provided with the welding mechanism 400. The welding mechanism 400 includes a fin box 410, a material picking assembly 420, and a welding assembly 430. The fin box 410 is used to store multiple fins 10. The material picking assembly 420 is used to sequentially pick up the fins 10 from the fin box 410 and position the fins 10 at a preset angle to the axis of the heat exchange tube 20 on the outer wall of the heat exchange tube 20. The welding assembly 430 is used to weld the contact position between the fins 10 and the heat exchange tube 20. The heat exchange tube 20 is precisely positioned by the fixed fixture 200, and the fins 10 are accurately placed on the outer wall of the heat exchange tube 20 at a preset angle by the material taking component 420. Then, the welding component 430 completes the welding, thereby ensuring the stability and consistency of the weld and effectively improving the welding quality and welding efficiency. After welding a set of fins 10, the two welding mechanisms 400 are driven forward along the axial direction of the heat exchange tube 20 by the moving mechanisms 300 on both sides of the fixture, which can continuously complete the welding of multiple fins 10. The entire welding process is highly automated, significantly reducing manual operation, reducing labor intensity, and reducing the production cost of the heat exchanger.

[0050] Preferably, in this embodiment, the fixed fixture 200 is provided with a moving mechanism 300 on both sides, and each moving mechanism 300 is provided with a welding mechanism 400 at its moving end, which can simultaneously weld the fins 10 on both sides of the heat exchange tube 20, thereby improving the welding efficiency of the fins 10 and shortening the processing cycle.

[0051] Optionally, such as Figure 3 and Figure 4 As shown, the fixed fixture 200 includes a first slide rail 210, a first limiting block 220, and a second limiting block 230. The first slide rail 210 is mounted on the worktable 100. The first limiting block 220 is fixed to one end of the first slide rail 210 and has a first limiting groove. The second limiting block 230 is slidably mounted on the first slide rail 210 and has a second limiting groove. The first and second limiting grooves can respectively engage with the outer wall of the heat exchange tube 20 to support and fix the heat exchange tube 20, thereby improving the stability of the heat exchange tube 20. Simultaneously, the second limiting block 230 can slide along the first slide rail 210, facilitating adjustment according to the length of the heat exchange tube 20, improving the adaptability and versatility of the device, and making operation convenient.

[0052] Optionally, the fixing fixture 200 also includes a first locking member, which can be a first locking screw. The first locking screw can pass through the second limiting block 230 and abut or separate from the first slide rail 210, thereby locking or unlocking the first limiting block 220, which facilitates quick locking of the second limiting block 230 after adjusting its position.

[0053] Optionally, the fixing fixture also includes a positioning element 240, which is disposed at one end of the first slide rail 210 near the first limiting block 220. The positioning element 240 is used to provide a reference surface 241 for the heat exchange tube 20. The end of the heat exchange tube 20 near the first limiting block 220 can abut against the reference surface 241 to ensure the installation accuracy of the heat exchange tube 20 in the axial direction, thereby further improving the consistency and quality of welding.

[0054] Optionally, such as Figure 5 As shown, the finned box 410 includes a box body 411, a first elastic component 412, and a second elastic component 413. The box body 411 includes a first sidewall 4111 and a second sidewall 4112 opposite to each other along a first direction, and a third sidewall 4113 and a fourth sidewall 4114 opposite to each other along a second direction. The third sidewall 4113 has an opening 4110 at one end near the first sidewall 4111. The first direction is parallel to the axial direction of the heat exchange tube 20, and the second direction is perpendicular to the first direction. The first elastic component 412 includes a first sliding plate 4121 and a first elastic element 4122. The first sliding plate 4121 is slidably disposed on the box body 411 along the first direction. Within the housing 411, one end of the first elastic member 4122 abuts against the first sliding plate 4121, and the other end abuts against the second sidewall 4112; the second elastic component 413 includes a second sliding plate 4131 and a second elastic member 4132. The second sliding plate 4131 is slidably disposed within the housing 411 along the second direction, and one end of the second elastic member 4132 abuts against the second sliding plate 4131, while the other end abuts against the fourth sidewall 4114; wherein, the first sidewall 4111, the third sidewall 4113, the first sliding plate 4121, and the second sliding plate 4131 together enclose a limiting space, and multiple fins 10 are arranged sequentially within the limiting space along the first direction. Figure 7 As shown, the fin box 410 has an opening 4110 on the side facing the fixed fixture 200, and the end of the fin 10 with a groove faces the opening 4110, so that the material picking assembly 420 can take out the fin 10 sequentially from the opening 4110 for welding, thereby reducing the movement path of the fin 10 and improving the welding efficiency.

[0055] In this embodiment, the first elastic component 412, through the cooperation of the first sliding plate 4121 and the first elastic element 4122, can provide continuous thrust to the fins 10 in the first direction, so that the fins 10 are always closely close to the opening 4110 end; the second elastic component 413, through the second elastic element 4132, provides continuous thrust to the second sliding plate 4131 in the second direction, and works in conjunction with the first elastic component 412 to keep the multiple fins 10 in an orderly arrangement in the housing 411 and always in a force-limited state, thereby ensuring that the fins 10 are kept in a tightly stacked state in the housing 411, which facilitates the material picking component 420 to accurately pick up the material from the opening 4110.

[0056] Optionally, such as Figure 6 As shown, the first sidewall 4111 is provided with a clearance opening 41111. The material picking component 420 can pick up the fin 10 from the clearance opening 41111 and move the fin 10 out of the fin box 410 from the opening 4110, ensuring smooth and reliable material picking action, improving material picking accuracy and operating efficiency, and reducing the possibility of damage and jamming of the fin 10.

[0057] Optionally, such as Figure 7 As shown, the thickness of the fin 10 is t0, and the thickness of the opening 4110 is t1, where t0 ≤ t1 < 2t0. This ensures that the material handling component 420 can only pick up one fin 10 at a time, improving the accuracy of material handling. In this embodiment, the thickness t1 of the opening 4110 is slightly larger than the thickness of the fin 10, specifically it can be 1.1t0, 1.2t0, 1.3t0, 1.4t0, 1.5t0, 1.6t0, 1.7t0, 1.8t0, 1.9t0, etc. Preferably, the value of t1 is 1.2t0, which ensures accurate material handling while preventing scratches or excessive friction between the fin 10 and the sides of the opening 4110 during the material handling process, thereby protecting the surface quality of the fin 10.

[0058] Optionally, such as Figure 3 As shown, the material handling assembly 420 includes a first multi-axis robot 421 and a material handling component 422. The material handling component 422 is disposed at the end of the first multi-axis robot 421. The material handling component 422 is a magnetic component or a vacuum suction cup, thereby realizing reliable gripping and handling of the fin 10, improving the stability and accuracy of material handling. At the same time, magnetic components or vacuum suction cups can be selectively set according to the material of the fin 10 to improve the stability of material handling.

[0059] Optionally, when the magnetic component is an electromagnet, the electromagnet can generate a magnetic force when connected to a power source, so that the electromagnet can be reliably attracted to the fin 10 at the opening 4110. When the electromagnet is de-energized, the magnetic force disappears, causing the electromagnet to detach from the fin 10, thereby improving the reliability and efficiency of material handling.

[0060] Optionally, when the magnetic component is a vacuum chuck, the vacuum chuck is connected to a vacuum pump. The vacuum pump generates negative pressure at the vacuum chuck, reliably fixing the fin 10 to the end of the vacuum chuck. After material handling is completed and the material is moved to the welding position, the negative pressure is disconnected to release the fin 10, achieving precise pick-and-place operations.

[0061] Optionally, the welding assembly 430 includes a second multi-axis robot 431 and a welding torch 432. The welding torch 432 is located at the end of the second multi-axis robot 431 and is used for welding the contact position between the fins 10 and the heat exchange tube 20. Through the flexible movement of the second multi-axis robot 431, the welding torch 432 can accurately weld along the contact position between the fins 10 and the heat exchange tube 20, ensuring the stability and consistency of the weld, improving welding quality, reducing the impact of manual operation on welding accuracy, and improving production efficiency and welding reliability.

[0062] Optionally, the first multi-axis robot 421 can be a three-axis robot, a four-axis robot, or a five-axis robot, etc., and the second multi-axis robot 431 can be a three-axis robot, a four-axis robot, or a five-axis robot, etc. The specific structure of the three-axis robot, four-axis robot, or five-axis robot is existing technology and will not be described in detail here.

[0063] Optionally, the moving mechanism 300 includes a linear moving component 310 and a power source. The linear moving component 310 is mounted on the worktable 100, and the moving end of the linear moving component 310 is provided with a moving block 320. The welding mechanism 400 is mounted on the moving block 320. The power source is connected to the input end of the linear moving component 310 for transmission. The power source is used to provide power to the linear moving component 310 so that the moving block 320 moves along the axial direction of the heat exchange tube 20. Through the above design, the welding mechanism 400 can move precisely along the axial direction of the heat exchange tube 20, thereby improving welding efficiency and welding quality.

[0064] Optionally, the linear motion component 310 can be a lead screw and nut assembly, which includes a lead screw and a nut. The lead screw is rotatably mounted on the worktable 100, and the nut is threadedly connected to the lead screw. The moving block 320 is fixed on the nut. The power source is a drive motor, and the output shaft of the drive motor is connected to the lead screw. Thus, the drive motor drives the lead screw to rotate forward or reverse, which makes the nut move forward or backward along the lead screw. The lead screw and nut assembly has high movement accuracy and fast action, which can improve the accuracy and efficiency of movement.

[0065] In other embodiments, the linear motion component 310 can be a gear and rack assembly, which includes a gear and a rack. The rack is fixed on the worktable 100 along the axial direction of the heat exchange tube 20, and the gear is rotatably mounted on the moving block 320. The gear meshes with the rack, and the power source is a drive motor, which is mounted on the moving block 320 and connected to the gear. The drive motor drives the gear to rotate, and through the meshing relationship between the gear and the rack, the moving block 320 can be moved along the axial direction of the heat exchange tube 20. The gear and rack assembly has a simple structure and low cost, which helps to save costs.

[0066] Optionally, the moving mechanism 300 also includes a guide rail 330, and the moving block 320 is slidably connected to the guide rail 330. This guide rail 330 can precisely guide and support the moving block 320 during movement, ensuring that it moves smoothly and linearly along the axial direction of the heat exchange tube 20, avoiding shaking, deviation or jamming, thereby improving the stability and positioning accuracy of the welding mechanism 400, and ensuring the continuity of the welding process and the quality of the weld.

[0067] This embodiment also provides a fin welding method, which is performed using the above-mentioned fin welding apparatus. The fin welding method includes:

[0068] S1. Fix the heat exchange tube 20 onto the fixture 200;

[0069] S2. The material handling assembly 420 takes out the fin 10 from the fin box 410 and places the fin 10 on the outer wall of the heat exchange tube 20 at a preset angle.

[0070] S3. Welding assembly 430 welds the contact points between fins 10 and heat exchange tube 20.

[0071] S4. After welding is completed, the moving mechanism 300 drives the welding mechanism 400 to move a preset distance along the axial direction of the heat exchange tube 20, and then repeats steps S2 to S4 until all the fins 10 are welded.

[0072] The fin welding method provided in this embodiment significantly improves welding efficiency and welding quality by using the above-mentioned fin welding device to weld oblique U-shaped fins 11, oblique H-shaped fins 12, or straight H-shaped fins 13, while reducing the labor intensity of manual labor and saving production costs.

[0073] Optionally, the fin welding apparatus further includes a control unit, and both the welding mechanism 400 and the moving mechanism 300 are communicatively connected to the control unit. Prior to step S1, the apparatus further includes:

[0074] The welding end of the control welding mechanism 400 moves along the contact position between the fin 10 and the heat exchange tube 20, thereby enabling the control unit to perform simulated welding and learning to generate a welding curve model in the control unit.

[0075] By simulating welding before actual welding, the control unit can accurately obtain the welding trajectory of fin 10 and heat exchange tube 20 before the actual welding, thereby improving welding accuracy and stability, and enhancing the level of intelligence and efficiency of welding.

[0076] In other embodiments, the welding curve model can also be obtained through software simulation. After obtaining the data of the welding curve model, the data of the welding curve model is input into the control unit. Directly importing the welding curve model into the control unit can also enable the welding mechanism 400 to accurately obtain the welding trajectory of the fins 10 and the heat exchange tube 20 before formal welding, thereby improving the welding accuracy and stability, and improving the level of intelligence and work efficiency of welding.

[0077] Optionally, the preset distance is the spacing between two adjacent fins 10 on the heat exchange tube 20, which enables the moving mechanism 300 to accurately move to the welding position of the next fin 10 after completing one welding operation, facilitating subsequent welding work of the fins 10 and improving welding efficiency and welding accuracy.

[0078] It should be noted that the control unit can be a centralized or distributed controller. The welding assembly 430, the material handling assembly 420, and the moving mechanism 300 are all communicatively connected to the controller. The controller can run a control program, thereby driving the welding assembly 430, the material handling assembly 420, and the moving mechanism 300 to work together to complete the welding of the fins 10. The specific control program and connection circuit are existing technologies and will not be described in detail.

[0079] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A fin welding device, characterized in that, include: A workbench (100) is provided with a fixing fixture (200) for positioning the heat exchange tube (20); The moving mechanism (300) is provided on at least one side of the fixed fixture (200), and the moving end of the moving mechanism (300) can move along the axial direction of the heat exchange tube (20). A welding mechanism (400) is provided at the moving end of the moving mechanism (300). The welding mechanism (400) includes a fin box (410), a material picking component (420), and a welding component (430). The fin box (410) is used to store multiple fins (10). The fin box (410) has an opening (4110) on the side facing the fixed fixture (200). The material picking component (420) is used to sequentially pick up the fins (10) from the opening (4110) of the fin box (410) and position the fins (10) at a preset angle to the axis of the heat exchange tube (20) on the outer wall of the heat exchange tube (20). The welding component (430) is used to weld the contact position between the fins (10) and the heat exchange tube (20).

2. The fin welding apparatus according to claim 1, characterized in that, The fixed fixture (200) includes: The first slide rail (210) is disposed on the worktable (100); The first limiting block (220) is fixed to one end of the first slide rail (210), and the first limiting block (220) is provided with a first limiting groove; The second limiting block (230) is slidably disposed on the first slide rail (210). The second limiting block (230) is provided with a second limiting groove. The first limiting groove and the second limiting groove can be respectively locked onto the outer wall of the heat exchange tube (20) to support the heat exchange tube (20).

3. The fin welding apparatus according to claim 2, characterized in that, The fixed fixture (200) further includes a positioning element (240), which is disposed at one end of the first slide rail (210) near the first limiting block (220). The positioning element (240) is used to provide a reference surface (241) for the heat exchange tube (20), and the end of the heat exchange tube (20) near the first limiting block (220) can abut against the reference surface (241).

4. The fin welding apparatus according to claim 1, characterized in that, The finned box (410) includes: The housing (411) includes a first sidewall (4111) and a second sidewall (4112) opposite to each other along a first direction, and a third sidewall (4113) and a fourth sidewall (4114) opposite to each other along a second direction. The third sidewall (4113) has the opening (4110) at one end near the first sidewall (4111). The first direction is parallel to the axial direction of the heat exchange tube (20), and the second direction is perpendicular to the first direction. The first elastic component (412) includes a first sliding plate (4121) and a first elastic member (4122). The first sliding plate (4121) is slidably disposed in the housing (411) along the first direction. One end of the first elastic member (4122) abuts against the first sliding plate (4121), and the other end abuts against the second side wall (4112). The second elastic component (413) includes a second sliding plate (4131) and a second elastic member (4132). The second sliding plate (4131) is slidably disposed in the housing (411) along the second direction. One end of the second elastic member (4132) abuts against the second sliding plate (4131), and the other end abuts against the fourth side wall (4114). The first sidewall (4111), the third sidewall (4113), the first sliding plate (4121) and the second sliding plate (4131) together form a limiting space. A plurality of the fins (10) are arranged sequentially in the limiting space along the first direction. The end of the fin (10) with a groove faces the opening (4110).

5. The fin welding apparatus according to claim 4, characterized in that, The first sidewall (4111) is provided with a clearance opening (41111), and the material handling component (420) can adsorb the fin (10) from the clearance opening (41111) and remove the fin (10) from the opening (4110) out of the fin box (410).

6. The fin welding apparatus according to claim 1, characterized in that, The thickness of the fin (10) is t0, and the thickness of the opening (4110) is t1, where t0≤t1<2t0.

7. The fin welding apparatus according to claim 1, characterized in that, The material handling assembly (420) includes a first multi-axis robot (421) and a material handling component (422). The material handling component (422) is disposed at the end of the first multi-axis robot (421). The material handling component (422) is a magnetic component or a vacuum suction cup.

8. The fin welding apparatus according to claim 1, characterized in that, The welding assembly (430) includes a second multi-axis manipulator (431) and a welding torch (432). The welding torch (432) is located at the end of the second multi-axis manipulator (431) and is used to weld the contact position between the fins (10) and the heat exchange tube (20).

9. The fin welding apparatus according to any one of claims 1-8, characterized in that, The moving mechanism (300) includes: A linear motion component (310) is disposed on the worktable (100), and a moving block (320) is provided at the output end of the linear motion component (310). The welding mechanism (400) is disposed on the moving block (320). A power source is connected to the input end of the linear motion assembly (310) to provide power to the linear motion assembly (310) so that the moving block (320) moves along the axial direction of the heat exchange tube (20).

10. The fin welding apparatus according to claim 9, characterized in that, The moving mechanism (300) further includes a guide rail (330), and the moving block (320) is slidably connected to the guide rail (330).

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