A heat sink flange rotational welding device and method

Abstract

The application discloses a radiator flange rotary welding device and method, and relates to the technical field of radiator production. The device comprises a base, a sliding assembly, a horizontal bed assembly, a pressing assembly, a flange positioning assembly, a rotary welding assembly, a cooling assembly and a driving assembly. The horizontal bed assembly carries a header pipe and cooperates with a limiting pin to lock the circumferential angle of the header pipe. The positioning assembly realizes the coaxiality of the flange and the header pipe. The sliding assembly drives the header pipe to butt joint with the flange. The pressing assembly locks the header pipe to prevent welding movement. The driving assembly drives the rotating ring and the welding gun to revolve around the header pipe to complete the girth welding of the flange and the header pipe. The cooling water absorbs heat during welding. The application discards the traditional manual alignment spot welding mode, solves the problems of poor coaxiality, repeated correction, uneven weld, secondary deviation and the like in manual welding, improves the welding precision, quality and production efficiency, and reduces the labor intensity.

Description

Technical Field

[0001] This invention relates to the field of radiator manufacturing technology, and in particular to a radiator flange rotary welding device and method. Background Technology

[0002] A transformer finned radiator consists of two current collectors and multiple fins connecting them. The fins have cavities that allow the two current collectors to communicate. During operation, the high-temperature insulating oil inside the transformer enters through one current collector, cools down through the large area of ​​the fins, and then flows back to the transformer through the other current collector, thus achieving heat dissipation and ensuring stable transformer operation. Flanges need to be welded to the ends of the current collectors to secure the radiator to the transformer.

[0003] Currently, the welding of manifolds and flanges is generally done manually. During the process, the welder holds the flange and aligns it with the manifold opening, achieving initial fixation through spot welding. Then, the coaxiality of the flange and manifold is visually inspected. If misalignment or skew is found, it is manually tapped and adjusted to correct the alignment. This traditional method relies heavily on the operator's experience and has several inherent drawbacks: poor alignment accuracy, poor coaxiality between the flange and manifold, and low consistency in finished product assembly; repeated corrections are required after alignment deviations, making the process cumbersome, time-consuming, and inefficient; spot welding has poor stability, making it prone to secondary misalignment during the actual welding process, resulting in welding misalignment, uneven welds, and other quality problems. Furthermore, manual welding is labor-intensive and costly.

[0004] In summary, the existing radiator flange welding process suffers from low automation, poor alignment accuracy, difficulty in ensuring coaxiality, low production efficiency, and poor product quality stability. Therefore, there is an urgent need to develop a radiator flange rotary welding device and method. Summary of the Invention

[0005] The purpose of this invention is to provide a rotary welding device and method for radiator flanges, addressing the problems of low alignment accuracy, difficulty in ensuring coaxiality, high labor intensity, low production efficiency, and unstable product quality in existing manual welding techniques. This device employs an integrated structure combining mechanical positioning and circumferential rotary welding with a cooling component to achieve welding between the manifold and the flange. This ensures coaxial accuracy, effectively suppresses welding thermal deformation, improves welding quality and production efficiency, and reduces manual labor intensity.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A radiator flange rotary welding device, comprising: A base on which a sliding assembly is provided, and a bed assembly for placing the manifold is provided on the sliding assembly; A pressing component is provided on the base, and its working end is capable of pressing or releasing the top surface of the manifold. A positioning component is located at one end of the bed assembly and the two are spaced apart. It is detachably connected to and coaxially arranged with a flange, and the flange is coaxial with the bed assembly. A rotating component is coaxially arranged with the positioning component and is capable of rotation, and a welding component is provided on it; A cooling component is disposed between the rotating component and the positioning component and is connected to the manifold. A drive component for driving the rotation component to rotate.

[0007] Optionally, the bed assembly includes a support block, the top surface of which has a semi-circular groove, and one end of the semi-circular groove near the positioning component passes through the support block; The semi-circular groove has a receiving groove, which corresponds to the opening on the manifold. A first sealing gasket is fixed in the receiving groove. A flow channel communicating with the opening is formed on the first sealing gasket. A return channel is formed in the support block. One end of the return channel passes through the support block. A passage is formed between the return channel and the first sealing gasket. The passage communicates with the flow channel.

[0008] Optionally, the sliding assembly includes a slider and a first telescopic rod, the slider being slidably connected to the base, the first telescopic rod being fixedly connected to the base, and the telescopic end of the first telescopic rod being fixedly connected to the slider; the support block is detachably connected to the slider; The pressing assembly includes a pressing block and a second telescopic rod. A bracket is fixed on the base. The second telescopic rod is fixedly connected to the bracket. The telescopic end of the second telescopic rod is fixedly connected to the top surface of the pressing block. A guide rod is fixed to the top surface of the pressing block. The guide rod slides through the bracket.

[0009] Optionally, it also includes at least two limiting pins, the at least two limiting pins being located on different sides of the semicircular groove, the limiting pins being fixedly connected to the inner wall of the semicircular groove, the limiting pins penetrating the first sealing gasket, and the top wall of the opening being tangent to the limiting pins.

[0010] Optionally, the positioning component includes a positioning sleeve and a positioning pin. One end of the manifold extends into the inner cavity of the positioning sleeve. The positioning pins are arranged in a one-to-one correspondence with the holes of the flange. A plurality of positioning pins are arranged circumferentially around the central axis of the semicircular groove. One end of the positioning pin is fixed with a stud, which is threadedly connected to the positioning sleeve. The other end of the positioning pin passes through the hole and is fixed with a screw rod, which is threadedly connected with a nut.

[0011] Optionally, the cooling component includes a water jacket, the water jacket, the positioning sleeve, and the base are bolted together. The water jacket is fitted onto the positioning sleeve, and an annular cavity is provided inside the water jacket. An inlet is provided on the outer wall of the water jacket, and an outlet is provided on the inner wall of the water jacket. The positioning sleeve has a channel communicating with the outlet, and a blind hole communicating with the channel is provided on the inner wall of the positioning sleeve. A second sealing gasket is fixed on the inner wall of the positioning sleeve. A through hole for connecting the manifold and the blind hole is provided on the second sealing gasket, and the manifold abuts against the second sealing gasket.

[0012] Optionally, the rotating assembly includes a bearing, a connecting mechanism, and a rotating ring, wherein the bearing is fixed between the rotating ring and the water jacket; the connecting mechanism is disposed on one side of the rotating ring, and the welding assembly is disposed on the connecting mechanism.

[0013] Optionally, the connecting mechanism includes a connecting rod and a sleeve, the connecting rod being fixed between the sleeve and the rotating ring, and a plurality of fastening screws being threaded onto the sleeve; the welding assembly includes a welding torch, the welding torch slidingly through the sleeve and abutting against one end of the fastening screws.

[0014] Optionally, the drive assembly includes a gear ring, a gear, and a drive motor. The gear ring is fixedly connected to the rotating ring, the gear meshes with the gear ring, the gear is drively connected to the output shaft of the drive motor, and the drive motor is fixedly connected to the base.

[0015] A method for rotary welding of a radiator flange, using the welding apparatus described above; the steps are as follows: S1. An open manifold is positioned on the bed frame; S2. The flange is fixed to the positioning assembly; S3. One end of the manifold passes through the flange and forms a seal with the positioning assembly; S4. Press the component to hold the manifold in place; S5. The welding assembly is in place, the external chiller supplies cold water to the cooling assembly, the drive assembly drives the rotating assembly to rotate, and the welding assembly welds the manifold and flange. S6. After welding is completed, remove the welded manifold and flange.

[0016] Compared with the prior art, the present invention has at least the following beneficial technical effects: This invention achieves coaxial positioning of the manifold and flange through a mechanical structure, and uses a rotating component to drive the welding component for welding. It eliminates the need for repeated manual correction, prevents secondary offset, and ensures stable and consistent welding quality. This significantly reduces the labor threshold, saves labor costs, and reduces labor intensity. The invention also includes a cooling component to absorb the high temperature of welding, effectively preventing the manifold from deforming due to heat, while reducing the temperature of the workpiece for easier subsequent transportation and processing. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0018] Figure 1 This is one of the three-dimensional structural schematic diagrams of the present invention; Figure 2 This is a second three-dimensional structural schematic diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the bed rest assembly; Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 A three-dimensional structural diagram of the bed frame assembly; Figure 6 This is a schematic cross-sectional view of a partial area of ​​the present invention; Figure 7 for Figure 6 Enlarged structural diagram at point B.

[0019] Explanation of reference numerals in the attached drawings: 100, base; 101, bracket; 200, manifold; 201, opening; 300, flange; 400, bearing block; 401, return channel; 402, passageway; 403, limit pin; 500, first sealing gasket; 600, slider; 700, first telescopic rod; 800, pressure block; 801, guide rod; 900, second telescopic rod; 1000, positioning sleeve; 1001, channel; 100 2. Blind hole; 1100, Locating pin; 1200, Nut; 1300, Water jacket; 1301, Inlet; 1302, Outlet; 1303, Annular baffle; 1400, Second sealing gasket; 1500, Bearing; 1600, Rotary ring; 1700, Connecting rod; 1800, Sleeve; 1801, Fastening screw; 1900, Welding torch; 2000, Gear ring; 2100, Gear; 2200, Drive motor. Detailed Implementation

[0020] The core of this invention is to provide a radiator flange rotary welding device and method, which can solve the defects of YYYY.

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "link", "fix", "sleeve", etc., 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 connection 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 invention according to the specific circumstances.

[0023] The circuits, electronic components, modules, and controllers involved in this application are all prior art, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this application does not involve any improvement to the above-mentioned components.

[0024] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, 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 invention.

[0025] A rotary welding device for radiator flanges In one specific embodiment, it includes: The base 100 has a sliding component on it, and the sliding component has a bed assembly for placing the manifold 200. The pressing component is mounted on the base 100, and its working end can press or release the top surface of the manifold 200. The positioning component is located at one end of the bed assembly and the two are spaced apart. It is detachably connected to the flange 300 and coaxially arranged. The flange 300 is coaxial with the bed assembly. A rotating component is coaxially arranged with the positioning component and is capable of rotation; a welding component is mounted on it. A cooling component is disposed between the rotating component and the positioning component and is connected to the manifold 200; The drive component is used to drive the rotating component to rotate.

[0026] In use, the manifold 200 is placed on the horizontal assembly, which positions it. The flange 300 is fixed to the positioning assembly. The sliding assembly moves the manifold 200 via the horizontal assembly, causing one end of the manifold 200 to protrude from the horizontal assembly and pass through the central hole of the flange 300. The working end of the pressing assembly descends and presses down on the manifold 200, thus fixing it in place. The welding assembly is positioned, and an external chiller supplies cold water to the cooling assembly. The driving assembly drives the rotating assembly to rotate, which in turn drives the welding assembly to rotate. The welding assembly welds the manifold 200 and the flange 300. After welding, the chiller stops, the pressing assembly resets, the welding assembly moves away from the flange 300, the positioning assembly releases the flange 300, the sliding assembly resets, and the welded manifold 200 and flange 300 are removed. The portion of the manifold 200 protruding from the flange 300 is removed using existing technology (this can be left as is, depending on whether it significantly affects the transformer's insulating oil circulation during actual operation).

[0027] In one specific embodiment, the bed assembly includes a support block 400, the top surface of which has a semi-circular groove, one end of which, near the positioning component, passes through the support block 400. When the manifold 200 is placed, one end of the manifold 200 abuts against one end of the semi-circular groove, and the other end protrudes from the support block 400. The semi-circular groove is adapted to the outer wall of the manifold 200, which can radially limit the manifold 200 and prevent it from rolling off course. The through-hole design at the end of the semi-circular groove provides passage space for the end of the manifold 200 to extend and pass through the flange 300.

[0028] In one specific embodiment, a receiving groove is formed within the semi-circular groove, and the receiving groove is correspondingly set with an opening 201 on the manifold 200. The opening 201 is a hole for communicating with the inner cavity of the heat sink. A first sealing gasket 500 is fixed within the receiving groove, and a flow channel communicating with the opening 201 is formed on the first sealing gasket 500. A return flow channel 401 is formed within the support block 400, and one end of the return flow channel 401 passes through the support block 400 for communicating with the return water end of the chiller. A passage 402 is formed between the return flow channel 401 and the first sealing gasket 500, and the passage 402 communicates with the flow channel. The first sealing gasket 500 is fitted to the opening 201 to seal and prevent water leakage. The cooling water sequentially passes through the cooling component, the positioning component, the inside of the manifold 200, the opening 201, the flow channel of the first sealing gasket 500, and the passage 402 before flowing into the return flow channel 401 and finally back to the chiller. By continuously absorbing the high temperature generated during welding through the circulation of cooling water, thermal deformation of the welded part of the manifold is effectively suppressed, ensuring the dimensional accuracy of the product. On the other hand, the overall temperature of the workpiece is reduced, the cooling waiting time is shortened, and the material can be quickly removed after welding.

[0029] In one specific embodiment, the sliding assembly includes a slider 600 and a first telescopic rod 700. The slider 600 is slidably connected to the base 100, and the first telescopic rod 700 is fixedly connected to the base 100. The telescopic end of the first telescopic rod 700 is fixedly connected to the slider 600. The support block 400 is detachably connected to the slider 600 (e.g., bolted), which facilitates replacement according to the manifold 200. The slider 600 is driven to move by the telescopic end of the first telescopic rod 700, thereby causing the support block 400 to move the manifold 200 closer to or away from the positioning assembly. Obviously, the slider 600 can also be driven by a linkage slider or a gear rack mechanism.

[0030] In one specific embodiment, the pressing assembly includes a pressing block 800 and a second telescopic rod 900. The first telescopic rod 700 and the second telescopic rod 900 can be hydraulic cylinders, pneumatic cylinders, or electric cylinders. The working end of the pressing assembly is the pressing block 800. A bracket 101 is fixed on the base 100. The second telescopic rod 900 is fixedly connected to the bracket 101. The telescopic end of the second telescopic rod 900 is fixedly connected to the top surface of the pressing block 800. A guide rod 801 is fixedly fixed to the top surface of the pressing block 800, and the guide rod 801 slides through the bracket 101. The pressing block 800 is driven to rise and fall by the telescopic end of the second telescopic rod 900, thereby pressing or releasing the manifold 200. The bracket 101 provides installation support for the second telescopic rod 900 and the guide rod 801. The second telescopic rod 900 drives the pressing block 800 to rise and fall. When pressing down, pressure is applied from the top of the manifold 200, which, together with the lower semi-circular groove, achieves bidirectional clamping of the manifold 200, preventing movement or rotation during welding. The guide rod 801 limits the movement of the pressure block 800 to prevent tilting and jamming, thus improving movement stability. After welding is completed, the pressure block 800 rises, releasing the constraint on the manifold 200.

[0031] In one specific embodiment, it further includes at least two limiting pins 403, which are located on different sides of the semicircular groove. The limiting pins 403 are fixedly connected to the inner wall of the semicircular groove, and the limiting pins 403 penetrate the first sealing gasket 500. The top wall of the opening 201 is tangent to the limiting pins 403.

[0032] When the pressure block 800 presses down on the manifold 200, the manifold 200 compresses the first sealing gasket 500, causing elastic deformation until the outer wall of the manifold 200 fits against the semi-circular groove. At this point, the top wall of the opening 201 is exactly tangent to the limiting pin 403. The limiting pin 403 precisely limits the circumferential angle of the manifold 200, strictly controlling the relative angle between the opening 201 and the flange 300 hole within a preset range. This avoids excessive angle deviation that could prevent the flange 300 hole from aligning with the transformer mounting hole, thus structurally ensuring the overall assembly accuracy of the radiator.

[0033] In one specific embodiment, the positioning assembly includes a positioning sleeve 1000 and positioning pins 1100. One end of the manifold 200 extends into the inner cavity of the positioning sleeve 1000. The positioning pins 1100 are correspondingly positioned to the holes of the flange 300. Multiple positioning pins 1100 are arranged circumferentially around the central axis of the semi-circular groove. One end of each positioning pin 1100 is fixed with a stud, which is threadedly connected to the positioning sleeve 1000. The other end of each positioning pin 1100 passes through a hole and is fixed with a screw rod, on which a nut 1200 is threadedly connected. The flange 300 is fitted onto the positioning pins 1100 through its own holes, achieving coaxiality between the flange 300 and the manifold 200, thus solving the problem of poor coaxiality during manual alignment. Tightening the nut 1200 firmly presses and fixes the flange 300, preventing it from loosening or shifting during welding. Simultaneously, the nut 1200 prevents welding slag from adhering to the screw rod.

[0034] In one specific embodiment, the cooling component includes a water jacket 1300, a positioning sleeve 1000, and a base 100 bolted together. The water jacket 1300 is fitted onto the positioning sleeve 1000. An annular cavity is provided inside the water jacket 1300. An inlet 1301 is provided on the outer wall of the water jacket 1300 for communication with the outlet of the chiller. An outlet 1302 is provided on the inner wall of the water jacket 1300. The positioning sleeve 1000 is provided with an outlet 1302 that connects to the outlet 1302. The connecting channel 1001 obviously allows for the installation of a sealing ring at the junction of the channel 1001 and the outlet 1302. A blind hole 1002 communicating with the channel 1001 is provided on the inner wall of the positioning sleeve 1000. A second sealing gasket 1400 is fixed to the inner wall of the positioning sleeve 1000. The second sealing gasket 1400 has a through hole for connecting the manifold 200 and the blind hole 1002. The manifold 200 abuts against the second sealing gasket 1400. Cooling water enters the annular cavity of the water jacket 1300 from the inlet 1301, flows into the manifold 200 through the outlet 1302, the channel 1001, the blind hole 1002, and the through hole of the second sealing gasket 1400. After heat exchange, it flows out from the opening 201 of the manifold 200, carrying away the high welding temperature and effectively reducing the thermal deformation of the manifold 200 and the flange 300.

[0035] In one specific embodiment, the rotating assembly includes a bearing 1500, a connecting mechanism, and a rotating ring 1600. The bearing 1500 is fixed between the rotating ring 1600 and the water jacket 1300. The connecting mechanism is located on one side of the rotating ring 1600, and the welding assembly is mounted on the connecting mechanism. An annular baffle 1303 can be fixed to one end of the water jacket 1300 near the flange 300. The annular baffle 1303 blocks welding slag, effectively preventing it from affecting the bearing 1500 and extending its service life. The bearing 1500, as a rotating support component, reduces the frictional resistance during the rotation of the rotating ring 1600, ensuring flexible rotation. The rotating ring 1600 drives the outer welding assembly to perform circumferential rotation, achieving continuous welding of the circumferential weld.

[0036] In one specific embodiment, the connecting mechanism includes a connecting rod 1700 and a sleeve 1800. The connecting rod 1700 is fixed between the sleeve 1800 and the swivel ring 1600. A plurality of fastening screws 1801 are threaded onto the sleeve 1800. The welding assembly includes a welding torch 1900, which slides through the sleeve 1800 and abuts against one end of the fastening screws 1801. The welding torch 1900 can slide relative to the sleeve 1800, thereby adjusting the height of the welding torch 1900. When installing the flange 300 or removing the weldment, the fastening screws 1801 are loosened, and the height of the welding torch 1900 is adjusted to avoid the flange 300. After the flange 300 is installed, the height of the welding torch 1900 is adjusted, and the fastening screws 1801 are tightened again.

[0037] In one specific embodiment, the drive assembly includes a gear ring 2000, a gear 2100, and a drive motor 2200. The gear ring 2000 is fixedly connected to a rotating ring 1600, the gear 2100 meshes with the gear ring 2000, and the gear 2100 is drively connected to the output shaft of the drive motor 2200. The drive motor 2200 is fixedly connected to the base 100. The drive motor 2200 drives the gear 2100 to rotate, the gear 2100 drives the gear ring 2000 to rotate, the gear ring 2000 drives the rotating ring 1600 to rotate, and the rotating ring 1600 drives the welding torch 1900 to rotate through a connecting mechanism. The output shaft speed of the drive motor 2200 can be adjusted according to the welding process to match different welding speed requirements, ensuring uniform weld and stable weld quality.

[0038] A method for rotary welding of a radiator flange: using the welding apparatus according to any one of claims 1 to 9; the steps are as follows: S1. A manifold 200 with an opening 201 is positioned on the bed assembly; S2, flange 300 is fixed on the positioning assembly; S3, One end of the manifold 200 passes through the flange 300 and forms a seal with the positioning assembly; S4. Press the component to press down the manifold 200; S5. The welding assembly is in place, the external chiller supplies cold water to the cooling assembly, the drive assembly drives the rotating assembly to rotate, and the welding assembly welds the manifold 200 and flange 300. S6. After welding is completed, remove the welded manifold 200 and flange 300.

[0039] Overall Working Principle: This invention employs a principle of fixing the manifold 200, pre-positioning the flange 300 coaxially, welding with a welding torch rotating at 190°, and coordinated cooling. Unlike manual hand-held welding, this device independently limits the manifold 200 and flange 300, achieving automatic coaxial docking through a sliding assembly. The mechanically fixed welding torch rotating at 190° ensures a constant welding speed and uniform weld seam. Simultaneously, a water channel is constructed from the water jacket 1300 – positioning sleeve 1000 – inside the manifold 200 – bearing block 400, using low-temperature cooling water to remove welding heat and suppress deformation of the manifold 200 and flange 300. Combined with the limiting pin 403, the circumferential angle of the manifold 200 is locked, ensuring the subsequent alignment of the flange 300 holes with the transformer holes. This solves the problems of low alignment accuracy, difficulty in ensuring coaxiality, secondary misalignment, high labor intensity, low production efficiency, and unstable product quality associated with manual welding.

[0040] Usage process: The workpiece is pre-positioned and the manifold 200 to be welded is placed in the semi-circular groove of the bearing block 400. The position is adjusted so that one end of the manifold 200 abuts against one end of the semi-circular groove and the other end protrudes out of the bearing block 400. At this time, the opening 201 is aligned with the first sealing gasket 500 in the semi-circular groove, and the limiting pin 403 is inserted into the opening 201.

[0041] For pre-installation and fixing of the flange, align the hole of the flange 300 with the positioning pin 1100 and insert it. The flange 300 should fit against the end face of the positioning sleeve 1000. Tighten the nut 1200 to fix the flange. At this time, the center of the flange 300 is coaxial with the manifold 200.

[0042] Coaxial connection sealing: Activate the first telescopic rod 700 to push the slider 600, bearing block 400 and manifold 200 to move toward the flange 300. The end of the manifold 200 passes through the central hole of the flange 300 and is inserted into the positioning sleeve 1000 until the end face of the manifold 200 presses against the second sealing gasket 1400.

[0043] Tighten, activate the second telescopic rod 900, and drive the pressure block 800 to press down on the manifold 200.

[0044] Align and adjust the welding torch 1900. Slide the welding torch 1900 up and down to adjust the gap between the welding torch head and the weld to the standard welding distance. After the adjustment is completed, tighten the fastening screw 1801 to lock the position of the welding torch 1900.

[0045] For welding and cooling, start the external chiller and introduce cooling water into the inlet 1301 of the water jacket 1300; at the same time, start the drive motor 2200, drive the gear 2100 to mesh with the gear ring 2000, drive the rotating ring 1600 to rotate at a constant speed, and the welding torch 1900 follows the rotating ring 1600 to make a circular motion around the manifold 200 to complete the welding of the entire circumferential weld.

[0046] After stopping, resetting, and unloading, and after welding is completed, turn off the drive motor 2200 and the chiller; the second telescopic rod 900 drives the pressure block 800 to rise and reset; unscrew the nut 1200; loosen the fastening screw 1801, raise the welding torch 1900 to avoid the flange 300, and then the first telescopic rod 700 retracts, and the manifold 200 drives the flange 300 away from the positioning sleeve 1000; remove the welded flange 300 and manifold 200 assembly.

[0047] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably, and the embodiments can be combined with each other. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to in the method section.

[0048] The above embodiments are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A radiator flange rotary welding device, characterized in that, include: A base (100) is provided with a sliding assembly, on which a bed assembly for placing a manifold (200) is provided; A pressing component is provided on the base (100), and its working end is capable of pressing or releasing the top surface of the manifold (200); A positioning component is located at one end of the bed assembly and spaced apart from it. It is detachably connected to and coaxially arranged with a flange (300), and the flange (300) is coaxial with the bed assembly. A rotating component is coaxially arranged with the positioning component and is capable of rotation, and a welding component is provided on it; A cooling component is disposed between the rotating component and the positioning component and is connected to the manifold (200); A drive component for driving the rotation component to rotate.

2. The radiator flange rotary welding device according to claim 1, characterized in that: The bed assembly includes a support block (400), and a semi-circular groove is provided on the top surface of the support block (400). The end of the semi-circular groove near the positioning assembly passes through the support block (400). The semi-circular groove is provided with a receiving groove, and the receiving groove is provided in a one-to-one correspondence with the opening (201) on the manifold (200). A first sealing gasket (500) is fixed in the receiving groove. A flow channel communicating with the opening (201) is provided on the first sealing gasket (500). A return channel (401) is provided in the support block (400). One end of the return channel (401) passes through the support block (400). A passage (402) is provided between the return channel (401) and the first sealing gasket (500). The passage (402) communicates with the flow channel.

3. The radiator flange rotary welding device according to claim 2, characterized in that: The sliding assembly includes a slider (600) and a first telescopic rod (700). The slider (600) is slidably connected to the base (100), and the first telescopic rod (700) is fixedly connected to the base (100). The telescopic end of the first telescopic rod (700) is fixedly connected to the slider (600). The bearing block (400) is detachably connected to the slider (600). The pressing assembly includes a pressing block (800) and a second telescopic rod (900). A bracket (101) is fixed on the base (100). The second telescopic rod (900) is fixedly connected to the bracket (101). The telescopic end of the second telescopic rod (900) is fixedly connected to the top surface of the pressing block (800). A guide rod (801) is fixed on the top surface of the pressing block (800). The guide rod (801) slides through the bracket (101).

4. The radiator flange rotary welding device according to claim 2, characterized in that: It also includes at least two limiting pins (403), at least two of the limiting pins (403) are located on different sides of the semicircular groove, the limiting pins (403) are fixedly connected to the inner wall of the semicircular groove, the limiting pins (403) penetrate the first sealing gasket (500), and the top wall of the opening (201) is tangent to the limiting pins (403).

5. The radiator flange rotary welding device according to claim 2, characterized in that: The positioning assembly includes a positioning sleeve (1000) and a positioning pin (1100). One end of the manifold (200) extends into the inner cavity of the positioning sleeve (1000). The positioning pin (1100) is set one-to-one with the holes of the flange (300). One end of the positioning pin (1100) is fixed with a stud, which is threadedly connected to the positioning sleeve (1000). The other end of the positioning pin (1100) passes through the hole and is fixed with a screw rod. A nut (1200) is threadedly connected to the screw rod.

6. The radiator flange rotary welding device according to claim 5, characterized in that: The cooling assembly includes a water jacket (1300), the water jacket (1300), the positioning sleeve (1000), and the base (100) are bolted together. The water jacket (1300) is fitted onto the positioning sleeve (1000). An annular cavity is provided inside the water jacket (1300). An inlet (1301) is provided on the outer wall of the water jacket (1300), and an outlet (1302) is provided on the inner wall of the water jacket (1300). The positioning sleeve (1000) has an opening corresponding to... The outlet (1302) is connected to the channel (1001), and the inner wall of the positioning sleeve (1000) is provided with a blind hole (1002) that communicates with the channel (1001); a second sealing gasket (1400) is fixed on the inner wall of the positioning sleeve (1000), and a through hole for connecting the collection pipe (200) and the blind hole (1002) is provided on the second sealing gasket (1400), and the collection pipe (200) abuts against the second sealing gasket (1400).

7. The radiator flange rotary welding device according to claim 6, characterized in that: The rotating assembly includes a bearing (1500), a connecting mechanism, and a rotating ring (1600). The bearing (1500) is fixed between the rotating ring (1600) and the water jacket (1300). The connecting mechanism is disposed on one side of the rotating ring (1600), and the welding assembly is disposed on the connecting mechanism.

8. The radiator flange rotary welding device according to claim 7, characterized in that: The connecting mechanism includes a connecting rod (1700) and a sleeve (1800). The connecting rod (1700) is fixed between the sleeve (1800) and the swivel (1600). A plurality of fastening screws (1801) are threaded onto the sleeve (1800). The welding assembly includes a welding torch (1900). The welding torch (1900) slides through the sleeve (1800) and abuts against one end of the fastening screws (1801).

9. The radiator flange rotary welding device according to claim 7, characterized in that: The drive assembly includes a gear ring (2000), a gear (2100), and a drive motor (2200). The gear ring (2000) is fixedly connected to the rotating ring (1600), the gear (2100) meshes with the gear ring (2000), the gear (2100) is drivenly connected to the output shaft of the drive motor (2200), and the drive motor (2200) is fixedly connected to the base (100).

10. A method for rotary welding of a radiator flange, characterized in that: Using the welding apparatus according to any one of claims 1 to 9; the steps are as follows: S1. A manifold (200) with an opening (201) is positioned on the bed assembly; S2, the flange (300) is fixed on the positioning assembly; S3, one end of the manifold (200) passes through the flange (300) and forms a seal with the positioning assembly; S4. Press the component to press the manifold (200). S5. The welding assembly is in place, the external chiller supplies cold water to the cooling assembly, the drive assembly drives the rotating assembly to rotate, and the welding assembly welds the manifold (200) and flange (300). S6. After welding is completed, remove the welded manifold (200) and flange (300).

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