A fin and flat tube assembly device for a radiator

Abstract

This invention relates to an assembly device for radiator fins and flat tubes, comprising an assembly chamber, a shaping frame, flat tubes, and radiator fins. A gripping frame is located at the top of the assembly chamber, a tube-up mechanism is located on the side of the assembly chamber, and a fin-up mechanism, a positioning frame, a fin-loading mechanism, and a material-picking mechanism are located at the bottom of the assembly chamber. The flat tubes are placed in the tube-up mechanism, and the radiator fins are placed in the tube-up mechanism, the positioning frame, and the fin-loading mechanism. The shaping frame includes a magnetic suction frame and a serpentine bending plate. The inner shape of the magnetic suction frame matches the outer shape of the serpentine bending plate. A deflector plate is located at the bend of the serpentine bending plate, and multiple deflector protrusions are provided on the inner side of the deflector plate. Multiple sets of through slots are formed on the outer side of the serpentine bending plate. This invention achieves continuous and precise shaping and bending of straight flat tubes, ensuring the consistency of the shape of all flat tubes, avoiding deformation caused by transporting independently bent tubes, and providing a standard basic component for subsequent assembly.

Description

Technical Field

[0001] This invention relates to the field of metal parts assembly technology, specifically to a device for assembling fins and flat tubes of a radiator. Background Technology

[0002] Radiator fin and flat tube assembly equipment is a core component in the manufacture of parallel flow heat exchangers, such as automotive air conditioning condensers, new energy vehicle battery coolers, and motor coolers. Its assembly precision directly determines the heat exchanger's heat transfer efficiency, pressure resistance, and service life. With the rapid development of the new energy vehicle industry, the market's demands for the quantity and quality of parallel flow heat exchangers are constantly increasing, placing even stricter requirements on the shape accuracy and batch consistency of the serpentine flat tubes.

[0003] In the existing technology, the preparation of serpentine flat tubes is carried out by an independent CNC tube bending machine for intermittent bending of each tube. The straight flat tubes cut to a fixed length are placed one by one into the clamping mechanism of the tube bending machine. The bending of a single flat tube is completed by the cooperation of the bending die and the guide die. The bent flat tubes are then transported to the assembly equipment for subsequent assembly.

[0004] However, this intermittent bending method cannot achieve continuous and precise shaping and bending of straight flat tubes. The clamping and positioning error of each flat tube, the difference in bending springback, and the cumulative error of equipment operation will cause deviations in bending radius, pitch, and flatness between different flat tubes, resulting in poor shape consistency and failing to meet the requirements of high-precision assembly. Summary of the Invention

[0005] The purpose of this invention is to provide a fin and flat tube assembly device for a radiator, which aims to improve the problem that it is difficult to achieve continuous and precise shaping and bending of straight flat tubes in the prior art.

[0006] The objective of this invention is achieved through the following technical solution: a fin and flat tube assembly device for a radiator, comprising an assembly chamber, a shaping frame, a flat tube and fins, wherein a gripping frame is provided at the top of the assembly chamber, an upper tube mechanism is provided on the side of the assembly chamber, and an upper plate mechanism, a positioning frame, a plate loading mechanism and a material picking mechanism are provided at the bottom of the assembly chamber, wherein the flat tube is placed in the upper tube mechanism, and the fins are placed in the upper plate mechanism, the positioning frame and the plate loading mechanism; The shaping frame includes a magnetic suction frame and a serpentine bending plate. The inner shape of the magnetic suction frame is adapted to the outer shape of the serpentine bending plate. A deflection plate is provided at the bend of the serpentine bending plate. Multiple deflection protrusions are provided on the inner side of the deflection plate. Multiple sets of through slots are opened on the outer side of the serpentine bending plate. The flat tube includes a tube body, the inside of which is provided with microchannels, and multiple sets of triangular slots are provided on the upper and lower sides of the tube body. The heat dissipation fins include a fin body, an elastic plate is provided inside the fin body, a triangular block is fixedly connected to the outer side of the elastic plate and the outer side of the triangular block is slidably connected inside the fin body, and a magnetic suction shaft is provided at one end of the fin body.

[0007] As a further description of the above technical solution: The feeding end of the serpentine bending plate is provided with a bent edge for pressing the triangular block into the inside of the sheet body. The gap width of the serpentine bending plate is the same as the width of the sheet body. The outer end of the triangular block passes through the through groove and engages with the triangular groove on the outside of the flat tube. As a further description of the above technical solution: The curvature of the deflector plate is the same as the curvature at the bend of the serpentine plate, and the deflector protrusion is an elastic structure and faces the direction of the flat tube bending. As a further description of the above technical solution: The gripping frame includes a longitudinal guide rail set at the top of the assembly room, a transverse guide rail at the output end of the longitudinal guide rail, a steering device at the output end of the transverse guide rail, a connecting post at the output end of the steering device, and multiple claws on the outside of the connecting post. The shape of the claws is adapted to the shape of the middle keel of the magnetic suction frame. As a further description of the above technical solution: The upper tube mechanism includes a mounting plate fixedly connected to the side of the assembly room. Two feeding conveyor belts are provided on the inner side of the mounting plate. Multiple rotating rollers are rotatably connected to the inner side of the mounting plate and are linearly distributed between the two feeding conveyor belts. A fixing frame for initially fixing the serpentine plate is fixedly connected to the inner side of the mounting plate. A cutting saw is provided on the inner side of the mounting plate. A backing plate is fixedly connected to the inner side of the mounting plate, and one side of the backing plate abuts against the end of the serpentine plate. A cutting support plate is provided on the inner side of the mounting plate. As a further description of the above technical solution: The mounting mechanism includes two slidably connected closing bars inside the assembly chamber. The inner side of the closing bars is provided with toothed grooves. A motor is installed inside the assembly chamber. The output end of the motor is fixedly connected to a drive gear, and the outer side of the drive gear meshes with the toothed groove. A push plate is fixedly connected to the top of the closing bars. Multiple connecting frames are fixedly connected to the opposite side of the two push plates. An electromagnetic adsorption cylinder with the opposite magnetic properties to the magnetic suction shaft is fixedly connected to the outer side of the connecting frame. A cable channel is provided inside the connecting frame. As a further description of the above technical solution: The material handling mechanism includes a base fixedly connected inside the assembly room, a mounting frame fixedly connected to the top of the base, a material handling rack fixedly connected to the inner side of the mounting frame, the width of the material handling rack being greater than the inner width of the serpentine plate, a curved surface for spreading the serpentine plate being provided on the outer side of the material handling rack, and a snap-fit ​​groove for gripping the side of the side tube being provided on the outer side of the material handling rack. As a further description of the above technical solution: The loading mechanism includes a second loading conveyor belt located inside the assembly room and a loading robot located at the end of the second loading conveyor belt. The positioning frame has multiple crossbeams inside, and the crossbeams have multiple sets of placement slots that are adapted to the shape of the triangular card blocks.

[0008] Compared with the prior art, the advantages of the present invention are as follows: 1. A serpentine bending mold pre-fixed within a fixed frame, along with the feeding conveyor belt and rotating roller of the tube feeding mechanism, transports straight flat tubes. The tubes are then guided by a deflector plate and elastic deflector protrusion at the bends, gradually bending the flat tubes. This achieves continuous and precise bending of the straight flat tubes, ensuring consistency in shape for all tubes and avoiding deformation caused by independent bending and subsequent transport. It also provides a standard base component for subsequent assembly.

[0009] 2. Through multiple sets of through slots with curved edges on the heat dissipation fins, combined with the elastic plate and triangular locking blocks inside the fin body, the fins are slidably positioned slot by slot as the closing bar continuously pushes them into place. Once in position, they automatically pop out and lock into the triangular locking slots of the flat tube. This achieves one-time completion of fin insertion, positioning, and fixation, eliminating the need for additional pre-fixing processes, ensuring tight contact, and improving assembly accuracy and connection reliability. Attached Figure Description

[0010] Figure 1 This is a plan view of an embodiment of a fin and flat tube assembly device for a radiator proposed in this invention; Figure 2 This is a schematic diagram of the main body of an embodiment of a fin and flat tube assembly device for a radiator proposed in this invention; Figure 3 This is a schematic diagram of the upper tube mechanism of a fin and flat tube assembly device for a radiator proposed in this invention. Figure 4 This is a schematic diagram of the shaping frame of a heat sink fin and flat tube assembly device proposed in this invention. Figure 5 This is a schematic diagram of the flat tube structure of a fin and flat tube assembly device for a radiator proposed in this invention. Figure 6 This is a schematic diagram of the heat sink fins of a heat sink assembly device for assembling fins and flat tubes according to the present invention. Figure 7 This is a schematic diagram of the gripping frame of a heat sink fin and flat tube assembly device proposed in this invention. Figure 8 This is a schematic diagram of the positioning frame of a fin and flat tube assembly device for a radiator proposed in this invention. Figure 9 This is a schematic diagram of the mounting mechanism of a fin and flat tube assembly device for a radiator according to the present invention. Figure 10 This is a schematic diagram of the material handling mechanism of a heat sink fin and flat tube assembly device proposed in this invention.

[0011] Labeling Explanation: 1. Assembly Room; 2. Gripping Frame; 201. Longitudinal Guide Rail; 202. Transverse Guide Rail; 203. Steering Gear; 204. Connecting Pile; 205. Claw; 3. Tube Loading Mechanism; 301. Mounting Plate; 302. Feeding Conveyor Belt 1; 303. Rotating Roller; 304. Fixing Frame; 305. Cutting Saw; 306. Support Plate; 307. Cutting Support Plate; 4. Sheet Loading Mechanism; 5. Positioning Frame; 6. Sheet Loading Mechanism; 601. Closing Strip; 602. Tooth Groove; 603. Motor; 604. Drive Gear; 605. Push plate; 606. Connecting frame; 607. Electromagnetic adsorption cylinder; 7. Shaping frame; 701. Magnetic suction frame; 702. Serpentine bending plate; 703. Directional plate; 704. Directional protrusion; 705. Through slot; 8. Flat tube; 801. Tube body; 802. Microchannel; 803. Triangular slot; 9. Heat dissipation fins; 901. Fin body; 902. Elastic plate; 903. Triangular block; 904. Magnetic suction shaft; 10. Material picking mechanism; 1001. Base; 1002. Mounting frame; 1003. Material picking rack. Detailed Implementation

[0012] The present invention will now be described in detail with reference to the accompanying drawings and embodiments: like Figures 1 to 10 The diagram shown is an embodiment of a fin and flat tube assembly device for a radiator provided by the present invention. The device includes an assembly chamber 1, providing a closed installation space and protection for all assembly components, isolating them from external interference and ensuring assembly accuracy; a shaping frame 7, enabling continuous shaping and bending of the straight flat tube 8, and providing guidance and positioning reference for fin insertion; the flat tube 8, serving as a fluid flow channel and the main carrier for heat transfer, significantly increasing the heat exchange area with the radiator fins 9, disrupting the air boundary layer, and enhancing the air-side heat transfer effect; and a gripping frame 2 at the top of the assembly chamber 1, enabling magnetic suction. The assembly room 1 is equipped with a tube-mounting mechanism 3 on its side, which completes the continuous conveying, shaping, bending and length cutting of the straight flat tube 8. The bottom of the assembly room 1 is equipped with a plate-mounting mechanism 4, which realizes the automatic feeding and precise transfer of the heat dissipation fins 9. The positioning frame 5 performs temporary positioning and pre-pressing treatment on the heat dissipation fins 9. The plate-mounting mechanism 6 completes the gripping, conveying and insertion assembly of the heat dissipation fins 9. Together with the material picking mechanism 10, the assembled core is automatically separated from the magnetic suction frame 701. The flat tube 8 is placed in the tube-mounting mechanism 3, and the heat dissipation fins 9 are placed in the plate-mounting mechanism 4, the positioning frame 5 and the plate-mounting mechanism 6.

[0013] The shaping frame 7 includes a magnetic chuck 701, which magnetically attracts the serpentine bending plate 702, enabling precise transfer and positioning of the serpentine bending plate 702. The serpentine bending plate 702, along with the shaping mold, guides the straight flat tube 8 into a standard serpentine structure, while also providing a guide channel for fin insertion. The inner shape of the magnetic chuck 701 matches the outer shape of the serpentine bending plate 702. A deflector plate 703 is provided at the bend of the serpentine bending plate 702 to provide guidance during the bending process of the flat tube 8, ensuring the flat tube 8 bends smoothly. The curvature is consistent, and the inner side of the deflector plate 703 is provided with multiple deflector protrusions 704 to help guide the flat tube 8 to pass smoothly through the turning area and prevent the flat tube 8 from getting stuck and deformed. The outer side of the serpentine bend plate 702 has multiple sets of through slots 705 to provide sliding channels and final positioning holes for the triangular block 903, so as to achieve precise positioning of the fins slot by slot. The curvature of the deflector plate 703 is the same as the curvature at the bend of the serpentine bend plate 702. The deflector protrusions 704 are elastic structures and face the bending direction of the flat tube 8.

[0014] The flat tube 8 includes a tube body 801, which constitutes the main structure for fluid flow. The tube body 801 has microchannels 802 inside to increase the contact area between the fluid and the tube wall and improve heat exchange efficiency. Multiple sets of triangular slots 803 are opened on the upper and lower sides of the tube body 801, which cooperate with the triangular blocks 903 to achieve a firm mechanical connection between the fins and the flat tube 8.

[0015] The heat dissipation fin 9 includes a fin body 901, which constitutes the main structure of the heat dissipation fin 9 and provides the main heat exchange area. An elastic plate 902 is provided inside the fin body 901 to provide elastic support for the triangular locking block 903, so that it can automatically pop out and retract. The triangular locking block 903 is fixedly connected to the outside of the elastic plate 902 and the outside of the triangular locking block 903 is slidably connected inside the fin body 901, cooperating with the triangular locking groove 803 to realize the mechanical fixation of the fin and the flat tube 8. A magnetic suction shaft 904 is provided at one end of the fin body 901, which cooperates with the electromagnetic adsorption cylinder 607 to realize the automatic gripping and conveying of the fin. The feed end of the serpentine bending plate 702 is provided with a bent edge for pressing the triangular locking block 903 into the fin body 901. During the fin insertion process, the triangular locking block 903 is continuously pressed down to keep it in a retracted state. The gap width of the serpentine bending plate 702 is the same as the width of the fin body 901. The outer end of the triangular locking block 903 passes through the through groove 705 and engages with the triangular locking groove 803 on the outside of the flat tube 8.

[0016] The gripping frame 2 includes a longitudinal guide rail 201 set at the top of the assembly room 1, which drives the transverse guide rail 202 to move in the longitudinal direction. The output end of the longitudinal guide rail 201 is provided with the transverse guide rail 202, which drives the steering device 203 to move in the transverse direction. The output end of the transverse guide rail 202 is provided with the steering device 203, which adjusts the angle of the magnetic suction frame 701 to ensure the accuracy of adsorption and assembly. The output end of the steering device 203 is provided with a connecting post 204, and multiple claws 205 are provided on the outside of the connecting post 204 to provide an installation base for the claws 205. The shape of the claws 205 is adapted to the shape of the middle keel of the magnetic suction frame 701, and engages with the middle keel of the magnetic suction frame 701 to realize the fixation and transfer of the magnetic suction frame 701.

[0017] The upper tube mechanism 3 includes a mounting plate 301 fixedly connected to the side of the assembly room 1, providing a mounting base for all components of the upper tube mechanism 3. Two feeding conveyor belts 302 are arranged inside the mounting plate 301, driving the continuous straight flat tube 8 forward at a uniform speed. Multiple rotating rollers 303 are rotatably connected to the inner side of the mounting plate 301, and these rollers 303 are linearly distributed between the two feeding conveyor belts 302, supporting the flat tube 8 from below, assisting its smooth movement, and preventing the flat tube 8 from sagging and deforming. A fixing device for initially fixing the serpentine bending plate 702 is fixedly connected to the inner side of the mounting plate 301. The frame 304 initially fixes the serpentine bending plate 702 to ensure the stability of the flat tube 8 during bending. The inner side of the mounting plate 301 is equipped with a cutting saw 305 to cut the continuous serpentine flat tube 8 into single flat tubes 8 that meet the length requirements. The inner side of the mounting plate 301 is fixedly connected with a stop plate 306, and one side of the stop plate 306 abuts against the end of the serpentine bending plate 702 to limit the conveying length of the continuous serpentine flat tube 8 and achieve precise fixed-length cutting. The inner side of the mounting plate 301 is equipped with a cutting support plate 307 to support the flat tube 8 during the cutting process and prevent the flat tube 8 from deforming during cutting.

[0018] The loading mechanism 6 includes two slidably connected closing bars 601 inside the assembly chamber 1, which drive the push plate 605 and the connecting frame 606 to move linearly along the guide rail. The inner side of the closing bars 601 has toothed grooves 602 that mesh with the drive gear 604, converting rotational power into linear power. A motor 603 is installed inside the assembly chamber 1 to provide stable power output to the loading mechanism 6. The output end of the motor 603 is fixedly connected to the drive gear 604, and the outer side of the drive gear 604 meshes with the toothed grooves 602, converting the rotational motion of the motor 603 into linear motion of the closing bars 601. The linear motion of the connecting bar 601 is such that a push plate 605 is fixedly connected to the top, which drives the connecting frame 606 and the electromagnetic adsorption cylinder 607 to move synchronously. Multiple connecting frames 606 are fixedly connected to the opposite side of the two push plates 605 to provide an installation base for the electromagnetic adsorption cylinder 607. An electromagnetic adsorption cylinder 607 with the opposite magnetic properties to the magnetic shaft 904 is fixedly connected to the outside of the connecting frame 606. The magnetic shaft 904 is magnetically adsorbed to achieve the gripping and conveying of the fins. A cable channel is provided inside the connecting frame 606 to provide a safe cable wiring space for the electromagnetic adsorption cylinder 607.

[0019] The material handling mechanism 10 includes a base 1001 fixedly connected inside the assembly room 1, providing a stable support foundation for the material handling mechanism 10. A mounting frame 1002 is fixedly connected to the top of the base 1001, providing an installation foundation for the material handling rack 1003. The material handling rack 1003 is fixedly connected to the inner side of the mounting frame 1002, realizing the separation of the core from the magnetic suction frame 701 and temporarily supporting the assembled core. The width of the material handling rack 1003 is greater than the inner width of the serpentine bending plate 702. The outer side of the material handling rack 1003 is provided with a curved surface for opening the serpentine bending plate 702, opening the serpentine bending plate 702 and separating it from the flat tube 8. The outer side of the material handling rack 1003 is provided with a snap-fit ​​groove for gripping the side of the tube, engaging with the side of the core, and fixing the position of the core.

[0020] The loading mechanism 4 includes a loading conveyor belt 2 located inside the assembly room 1, which drives the stacked heat dissipation fins 9 forward, and a loading robot located at the end of the loading conveyor belt 2, which grabs a single heat dissipation fin 9 from the conveyor belt and accurately transfers it to the positioning frame 5. The positioning frame 5 has multiple crossbeams inside, which provide an installation base for the placement slots. The crossbeams have multiple sets of placement slots that are adapted to the shape of the triangular clip 903, which temporarily fix the heat dissipation fins 9 and press the triangular clip 903 into the body 901.

[0021] At the same time, the second feeding conveyor belt of the feeding mechanism 4 is started, which transports the stacked heat dissipation fins 9 forward. The feeding robot grabs a single heat dissipation fin 9 from the conveyor belt, moves it above the positioning frame 5, adjusts the angle of the heat dissipation fin 9 so that the triangular locking block 903 at the bottom of the heat dissipation fin 9 is aligned with the placement groove on the crossbeam of the positioning frame 5, and then moves downward to place the heat dissipation fin 9 in the placement groove. The side wall of the placement groove presses the triangular locking block 903 into the elastic plate 902 inside the fin body 901, so that the heat dissipation fin 9 is temporarily fixed on the positioning frame 5.

[0022] The motor 603 of the mounting mechanism 6 starts, driving the drive gear 604 to rotate clockwise. The drive gear 604 meshes with the toothed grooves 602 on the inner side of the two joining bars 601, driving the two joining bars 601 to move towards each other along the guide rail at the bottom of the assembly room 1. The push plate 605 on the top of the joining bar 601 moves towards the positioning frame 5. The multiple connecting frames 606 on the push plate 605 move synchronously. When the electromagnetic adsorption cylinder 607 at the end of the connecting frame 606 approaches the magnetic suction shaft 904 at the end of the heat dissipation fin 9, the electromagnetic adsorption cylinder 607 is energized to generate a magnetic field opposite to that of the magnetic suction shaft 904, attracting the magnetic suction shaft 904. The electromagnetic adsorption cylinder 607 drives the heat dissipation fin 9 to be pulled out from the placement slot of the positioning frame 5 through the magnetic suction shaft 904. The triangular block 903 is kept in the extended state under the action of the elastic plate 902.

[0023] Motor 603 rotates in the reverse direction, driving drive gear 604 to rotate counterclockwise. The two closing bars 601 move towards each other, and push plate 605 pushes heat dissipation fins 9 into the gap of serpentine bending plate 702. During the insertion process, the curved edge of the feed end of serpentine bending plate 702 continuously presses against triangular locking block 903, keeping it in a retracted state. After heat dissipation fins 9 enter the gap between serpentine bending plates 702, triangular locking block 903 first aligns with and enters the first through slot 705 opened on heat dissipation fins 9.

[0024] At this time, the closing bar 601 still maintains the opposite movement state. The curved structure of the edge of the through groove 705 contacts the end of the triangular block 903, pushing the triangular block 903 to overcome the elastic force of the elastic plate 902 and slide out of the current through groove 705, and continue to move towards the next through groove 705. The above sliding process is repeated until a set of eight heat dissipation fins 9 are completely aligned with the corresponding eight through grooves 705 on the serpentine plate 702. At this time, the motor 603 stops operating and the closing bar 601 stops moving.

[0025] After the motor 603 stops, the elastic plate 902 naturally rebounds after losing external pressure, pushing the triangular locking block 903 out of the body 901, through the corresponding through slot 705, and into the triangular locking slot 803 pre-opened on the outside of the flat tube 8, thus completing the fixed connection between the heat dissipation fins 9 and the flat tube 8, thereby completing the initial assembly of the entire core.

[0026] After all the heat dissipation fins 9 are assembled, the electromagnetic adsorption cylinder 607 is de-energized and loses its adsorption force on the magnetic shaft 904. The gripping frame 2 drives the magnetic frame 701 and the assembled core to detach from the connecting frame 606 and move to the front of the material picking mechanism 10. The transverse guide rail 202 drives the magnetic frame 701 and the core to move into the mounting frame 1002, so that the opening side of the serpentine plate 702 is aligned with the material picking frame 1003 of the material picking mechanism 10.

[0027] The picking rack 1003 is inserted into the internal space of the serpentine bending plate 702. The curved surface on the outside of the picking rack 1003 contacts the inside of the serpentine bending plate 702, pushing the serpentine bending plate 702 outward and separating the serpentine bending plate 702 from the adsorption surface of the flat tube 8. The snap-fit ​​groove on the outside of the picking rack 1003 engages with the side of the flat tube 8. The gripping rack 2 drives the magnetic suction rack 701 to move backward. Since one end of the through groove 705 is open, the flat tube 8 and the heat dissipation fins 9 remain on the picking rack 1003, completing the separation of the core from the magnetic suction rack 701.

[0028] Finally, the operator or subsequent conveying mechanism removes the assembled core from the picking rack 1003 and sends it to the next process for processing. The gripping rack 2 drives the magnetic suction rack 701 back to the upper tube mechanism 3, ready for the assembly cycle of the next core.

Claims

1. A fin and flat tube (8) assembly device for a radiator, comprising an assembly chamber (1), a shaping frame (7), a flat tube (8), and fins (9), characterized in that: The top of the assembly room (1) is provided with a gripping frame (2), the side of the assembly room (1) is provided with an upper tube mechanism (3), and the bottom of the assembly room (1) is provided with an upper plate mechanism (4), a positioning frame (5), a plate loading mechanism (6) and a material picking mechanism (10). The flat tube (8) is placed in the upper tube mechanism (3), and the heat dissipation fins (9) are placed in the upper plate mechanism (4), the positioning frame (5) and the plate loading mechanism (6). The shaping frame (7) includes a magnetic suction frame (701) and a serpentine bending plate (702). The inner shape of the magnetic suction frame (701) is adapted to the outer shape of the serpentine bending plate (702). A deflection plate (703) is provided at the bend of the serpentine bending plate (702). Multiple deflection protrusions (704) are provided on the inner side of the deflection plate (703). Multiple sets of through slots (705) are opened on the outer side of the serpentine bending plate (702). The flat tube (8) includes a tube body (801), a microchannel (802) is provided inside the tube body (801), and multiple sets of triangular slots (803) are provided on the upper and lower sides of the tube body (801). The heat dissipation fin (9) includes a fin body (901), an elastic plate (902) is provided inside the fin body (901), a triangular block (903) is fixedly connected to the outer side of the elastic plate (902), and the outer side of the triangular block (903) is slidably connected inside the fin body (901). A magnetic suction shaft (904) is provided at one end of the fin body (901).

2. The fin and flat tube (8) assembly equipment for a radiator according to claim 1, characterized in that: The feeding end of the serpentine bending plate (702) is provided with a bent edge for pressing the triangular block (903) into the sheet body (901). The gap width of the serpentine bending plate (702) is the same as the width of the sheet body (901). The outer end of the triangular block (903) passes through the through groove (705) and engages with the triangular groove (803) on the outside of the flat tube (8).

3. The fin and flat tube (8) assembly equipment for a radiator according to claim 1, characterized in that: The curvature of the deflector plate (703) is the same as the curvature at the bend of the serpentine plate (702), and the deflector protrusion (704) is an elastic structure and faces the bending direction of the flat tube (8).

4. The fin and flat tube (8) assembly equipment for a radiator according to claim 1, characterized in that: The gripping frame (2) includes a longitudinal guide rail (201) set at the top of the assembly room (1), a transverse guide rail (202) is set at the output end of the longitudinal guide rail (201), a steering device (203) is set at the output end of the transverse guide rail (202), a connecting post (204) is set at the output end of the steering device (203), and multiple claws (205) are set on the outside of the connecting post (204). The shape of the claws (205) is adapted to the shape of the middle keel of the magnetic suction frame (701).

5. The fin and flat tube (8) assembly equipment for a radiator according to claim 1, characterized in that: The upper tube mechanism (3) includes a mounting plate (301) fixedly connected to the side of the assembly room (1). Two feeding conveyor belts (302) are provided on the inner side of the mounting plate (301). Multiple rotating rollers (303) are rotatably connected to the inner side of the mounting plate (301), and the multiple rotating rollers (303) are linearly distributed between the two feeding conveyor belts (302). A fixing frame (304) for initially fixing the serpentine plate (702) is fixedly connected to the inner side of the mounting plate (301). A cutting saw (305) is provided on the inner side of the mounting plate (301). A stop plate (306) is fixedly connected to the inner side of the mounting plate (301), and one side of the stop plate (306) abuts against the end of the serpentine plate (702). A cutting support plate (307) is provided on the inner side of the mounting plate (301).

6. The fin and flat tube (8) assembly equipment for a radiator according to claim 1, characterized in that: The loading mechanism (6) includes two slidably connected closing bars (601) inside the assembly chamber (1). The inner side of the closing bars (601) is provided with toothed grooves (602). The assembly chamber (1) is provided with a motor (603). The output end of the motor (603) is fixedly connected with a drive gear (604), and the outer side of the drive gear (604) meshes with the toothed grooves (602). The top of the closing bars (601) is fixedly connected with a push plate (605). Multiple connecting frames (606) are fixedly connected to the opposite side of the two push plates (605). An electromagnetic adsorption cylinder (607) with the opposite magnetism to the magnetic suction shaft (904) is fixedly connected to the outer side of the connecting frame (606). A cable channel is provided inside the connecting frame (606).

7. The fin and flat tube (8) assembly equipment for a radiator according to claim 1, characterized in that: The material handling mechanism (10) includes a base (1001) fixedly connected inside the assembly room (1). A mounting frame (1002) is fixedly connected to the top of the base (1001). A material handling rack (1003) is fixedly connected to the inner side of the mounting frame (1002). The width of the material handling rack (1003) is greater than the inner width of the serpentine plate (702). A curved surface for opening the serpentine plate (702) is provided on the outer side of the material handling rack (1003). A snap-fit ​​groove for gripping the side of the tube is provided on the outer side of the material handling rack (1003).

8. The fin and flat tube (8) assembly equipment for a radiator according to claim 1, characterized in that: The loading mechanism (4) includes a loading conveyor belt II located inside the assembly room (1) and a loading robot located at the end of the loading conveyor belt II. The positioning frame (5) has multiple crossbeams inside and multiple sets of placement slots adapted to the shape of the triangular card block (903) are opened on the crossbeams.

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