Radiator welding device

Abstract

The invention relates to the technical field of radiator weldments, and particularly discloses a radiator welding device which comprises a welding head and a driving assembly, a spacer sleeve is arranged outside the welding head, the side face of the spacer sleeve rotatably abuts against an oil collecting pipe, a scraper is arranged in the spacer sleeve, the scraper slidably abuts against the inner wall of the spacer sleeve, and the scraper is connected with the welding head to rotate along with the welding head. A limiting assembly and a reset piece are arranged on the spacer sleeve, the reset piece is connected with the scraper, the scraper abuts against the spacer sleeve to drive the spacer sleeve to rotate to the position between the two cooling fins along with the welding head, the limiting assembly is matched with the cooling fins to fix the spacer sleeve after welding, the welding head rotates and resets to drive the scraper to slide relative to the spacer sleeve to scrape welding slag on the inner wall of the spacer sleeve, and meanwhile the reset piece deforms. After the welding head moves to the outside of the cooling fin, the limiting assembly relieves limitation on the spacer sleeve, and the reset piece drives the spacer sleeve to rotate to the initial position relative to the welding head; the radiator welding device has the effect of reducing the phenomenon that welding slag splashes to the cooling fins.

Description

Technical Field

[0001] The present invention relates to the technical field of radiator weldments, and particularly to a radiator welding device. Background Art

[0002] A finned radiator is a heat exchange device that improves heat dissipation efficiency by increasing the surface area, and is widely used in industries, electric power and other fields. In the electric power field, an oil-immersed transformer relies on a finned radiator to control the temperature rise to prevent insulation aging and ensure safe operation. In addition, when processing a finned radiator, oil collecting pipes need to be welded to both ends of the heat sink fins respectively.

[0003] A patent document with the publication number of CN117697307B discloses a finned radiator welding production line, including a heat sink fin welding device for welding to form heat sink fins, a oil collecting pipe welding device for welding the oil collecting pipe and the heat sink fins into one body, a welding device for welding a plug and a connecting cover to both ends of the oil collecting pipe, and a conveying track and a transfer device for transporting materials between each welding station. The heat sink fin welding device can weld two metal plates into heat sink fins. The welded multiple heat sink fins are arranged on the transfer device and are transferred to the oil collecting pipe welding device through the transfer device. The oil collecting pipe welding device can weld the oil collecting pipes to both ends of the heat sink fins respectively. After welding is completed, it is transferred to the plug and connecting cover welding device through the transfer device, and the plug and the connecting cover are welded to both ends of the oil collecting pipe respectively.

[0004] However, the following problems still exist in this solution. The finned radiator of an oil-immersed transformer is usually connected to an oil tank, and heat dissipation is achieved through the circulation of transformer oil inside. The channels formed between the heat sink fins are part of the oil circuit, and the cooling oil flows between the fins and exchanges heat with the heat sink fins. Therefore, generally speaking, the thickness of the heat sink fins is relatively thin. When welding between two heat sink fins, it is necessary to perform arc welding around the oil collecting pipe between the two heat sink fins to fix the heat sink fins on the oil collecting pipe and ensure the sealing of the oil circuit at the same time. However, when performing arc welding, welding slag will splash onto the heat sink fins, which is inconvenient to clean. At the same time, the space between the two heat sink fins is relatively narrow, which will cause local overheating during welding. At the same time, due to the thin heat sink fins and the influence of the splashed welding slag, the side surface of the heat sink fins will be damaged. Summary of the Invention

[0005] The present invention provides a radiator welding device, aiming to solve the problems in the related technology that the welding slag splashing onto the heat sink fins is inconvenient to clean and easily causes damage to the surface of the heat sink fins.

[0006] The radiator welding device of the present invention includes a welding head, and further includes a driving component connected to the welding head and driving the welding head to rotate around the oil collecting pipe for welding the heat sinks. A retaining sleeve is arranged outside the welding head, and the side surface of the retaining sleeve is rotationally abutted against the oil collecting pipe. A scraping plate is arranged inside the retaining sleeve to rotate around the oil collecting pipe, and the scraping plate is slidably abutted against the inner wall of the retaining sleeve. The scraping plate is connected to the welding head to rotate with the welding head. A limiting component and a resetting component are arranged on the retaining sleeve. The resetting component is connected to the scraping plate. The scraping plate abuts against the retaining sleeve and drives the retaining sleeve to rotate with the welding head to between two heat sinks. After welding, the limiting component cooperates with the heat sink to fix the retaining sleeve. The welding head rotates and resets to drive the scraping plate to slide relative to the retaining sleeve to scrape the welding slag on the inner wall of the retaining sleeve. At the same time, the resetting component deforms. After the welding head moves outside the heat sink, the limiting component releases the restriction on the retaining sleeve, and the resetting component drives the retaining sleeve to rotate relative to the welding head to the initial position.

[0007] The effect is that during welding, the driving component drives the welding head to rotate around the oil collecting pipe, the welding head drives the scraping plate to move, and the scraping plate abuts against the inner wall of the retaining sleeve, so that the welding head drives the retaining sleeve to move synchronously through the scraping plate and enters between the heat sinks. When the welding head performs welding, it is blocked by the retaining sleeve. After welding is completed, the limiting component cooperates with the heat sink to fix the retaining sleeve, so that the welding head moves in the reverse direction and the retaining sleeve is stationary. The welding head drives the scraping plate to move inside the retaining sleeve to scrape off the welding slag and the like adhered to the inner wall of the retaining sleeve, so as to centrally clean the welding slag inside the retaining sleeve. After the welding head moves outside the heat sink, the limiting component releases the restriction on the retaining sleeve, and the resetting component drives the retaining sleeve to move to the initial position. By blocking the welding area with the retaining sleeve during welding, the phenomenon of welding slag splashing onto the heat sink is reduced, and at the same time, a scraping plate is provided to clean the welding slag.

[0008] Preferably, the limiting component includes a clamping block, a pull rod, and an elastic member I that cooperates with the clamping block. The clamping block slides on the retaining sleeve, and the elastic member I is used to drive the clamping block away from the retaining sleeve. One end of the pull rod cooperates with the clamping block, and the other end is provided with a bent portion that extends into the retaining sleeve. The pull rod is rotationally assembled inside the retaining sleeve around the oil collecting pipe. After welding, the clamping block moves outside the heat sink, and the elastic member I drives the clamping block to abut against the side surface of the heat sink. After the scraping plate scrapes off the welding slag, it abuts against the bent portion of the pull rod and drives the pull rod to rotate, and the pull rod drives the clamping block to move away from the heat sink.

[0009] The effect is that after welding is completed, the elastic member I drives the clamping block to move to cooperate with the heat sink to fix the retaining sleeve, so as to subsequently cooperate with the scraping plate to clean the welding slag inside the retaining sleeve.

[0010] Preferably, the clamping block is provided with a first inclined surface. When the retaining sleeve enters the heat sink, the first inclined surface cooperates with the heat sink to drive the clamping block to move towards the heat sink.

[0011] The effect is that when the retaining sleeve moves with the welding head, the first inclined surface cooperates with the heat sink. Under the action of the first inclined surface, the clamping block is driven to move towards the retaining sleeve, and at the same time, the first elastic member is deformed. Until the clamping block moves into the retaining sleeve and enters between the heat sinks with the retaining sleeve. After welding is completed, when the clamping block moves to the outside of the heat sink, the first elastic member drives the clamping block to move to the side of the heat sink, and the side of the clamping block facing away from the inclined surface cooperates with the heat sink to prevent the retaining sleeve from rotating in the reverse direction, so as to clean the welding slag.

[0012] Preferably, one end of the pull rod close to the clamping block is provided with a second inclined surface. The clamping block includes a top block. When the pull rod rotates, the second inclined surface is driven to cooperate with the top block to drive the clamping block to move and separate from the heat sink.

[0013] The effect is that when the scraping plate moves to abut against the pull rod, the pull rod is driven to move. The pull rod abuts against the top block through the second inclined surface. When the pull rod continues to move, the clamping block is driven to move through the top block until the clamping block separates from the heat sink, releasing the restriction on the retaining sleeve.

[0014] Preferably, the retaining sleeve includes two clamping sleeves that are slidably matched. The scraping plate includes two connecting plates that are slidably matched. The two connecting plates are arranged in one-to-one correspondence with the two clamping sleeves. The connecting plate is slidably matched with the clamping sleeve. A connecting rod is arranged on the welding head. The connecting rod is slidably matched with the connecting plate. When the two clamping sleeves slide relative to each other, the connecting rod slides relative to the connecting plate. An elastic member three is arranged outside the connecting rod. The elastic member three is arranged between the connecting plate and the welding head and is used to drive the two connecting plates away from each other.

[0015] The effect is that when the welding head performs welding, the two clamping sleeves approach each other and at the same time the elastic member three is deformed to reduce the distance between them and enter between the heat sinks. After the clamping sleeve enters between the heat sinks, the elastic member three drives the clamping sleeve to abut against the heat sink, and at the same time supports the welding head, improving the stability of the welding head during welding.

[0016] Preferably, a guiding inclined block is arranged on one side of the clamping sleeve close to the heat sink. When the clamping sleeve enters between the heat sinks, the inclined surface of the guiding inclined block cooperates with the heat sink, and the guiding inclined block drives the two clamping sleeves to approach each other and enter between the heat sinks.

[0017] The effect is that the clamping sleeve rotates towards the heat sink, driving the inclined surface of the guiding inclined block to abut against the heat sink. When the clamping sleeve continues to rotate, the guiding inclined block drives the clamping sleeve to move through its inclined surface, so that the clamping sleeve can enter between the heat sinks with the welding head.

[0018] Preferably, a placement rack is provided on the driving assembly. The placement rack is fixed to the ground. The driving assembly includes a first power member, a second power member, a driving frame, a lead screw, and a slider. The driving frame is rotationally engaged with the placement rack. The lead screw is rotationally engaged with the driving frame. The slider is in threaded engagement with the lead screw and is slidably disposed on the driving frame. The welding head is assembled on the slider. The first power member is disposed on the placement rack and connected to the driving frame for driving the driving frame to rotate. The second power member is disposed on the driving frame and connected to the lead screw for driving the lead screw to rotate. The rotation of the lead screw drives the welding head to move through the slider.

[0019] The effect is that the first power member drives the driving frame to rotate, and the driving frame drives the welding head to rotate, so that the welding head rotates around the oil collecting pipe to weld the heat sink. After the welding is completed, the first power member drives the welding head to rotate to the outside of the heat sink and return to the initial position. Then, the second power member drives the slider to move through the lead screw, and further drives the welding head to move axially, so that the welding head moves to the gap between two adjacent heat sinks for welding at the next position.

[0020] Preferably, the welding head is slidably engaged with the slider. When the bushing enters between the heat sinks, the third elastic member drives the welding head to move relative to the slider so that the welding head is located between the two bushings.

[0021] The effect is that while the bushing is engaged with the heat sink, the third elastic member drives the welding head to move relative to the slider, so that the welding head is located in the middle position between the two heat sinks, correcting the welding head and improving the welding accuracy.

[0022] Preferably, an opening is provided on the side of the retaining sleeve. When the scraper scrapes the welding slag, it moves towards the opening, and the scraped welding slag is discharged outside the retaining sleeve through the opening.

[0023] The effect is that the opening is provided so that when the scraper moves, the cleaned welding slag is discharged through the opening, reducing the phenomenon that the welding slag affects subsequent welding.

[0024] Preferably, the reset member includes a second elastic member and a pull rope. The second elastic member is connected to the retaining sleeve. Both ends of the pull rope are respectively connected to the second elastic member and the scraper. When the scraper moves relative to the retaining sleeve, the second elastic member is stretched through the pull rope.

[0025] The effect is that when the scraper moves, the second elastic member is pulled by the pull rope to deform. After the block is separated from the heat sink and releases the restriction on the retaining sleeve, at this time the welding head is stationary, and the second elastic member drives the retaining sleeve to rotate in the reverse direction through the pull rope until the retaining sleeve rotates relative to the welding head to the initial position for the next welding.

[0026] Beneficial effects: In the present invention, during welding, the retaining sleeve moves into the heat sink along with the welding head. When the welding head is welding, the retaining sleeve surrounds the periphery of the welding head, reducing the influence of the heat sink being affected by excessively high local temperature during welding, and reducing the phenomenon that welding slag splashes onto the heat sink during welding. At the same time, a scraping plate is provided to clean the welding slag in the retaining sleeve. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0028] Figure 2 It is a schematic diagram of the structure of the driving component in an embodiment of the present invention.

[0029] Figure 3 It is a schematic diagram of the mating state of the ferrule and the heat sink in an embodiment of the present invention.

[0030] Figure 4 It is a schematic diagram of the positional relationship between the retaining sleeve and the oil collecting pipe in an embodiment of the present invention.

[0031] Figure 5 It is a partial explosion schematic diagram of the ferrule and the welding head in an embodiment of the present invention.

[0032] Figure 6 It is a schematic diagram of the positional relationship between the clamping block and the ferrule in an embodiment of the present invention.

[0033] Figure 7 It is a schematic diagram of the structure of the resetting member in an embodiment of the present invention.

[0034] Figure 8 It is a schematic diagram of the structure of the welding head and the slider in an embodiment of the present invention.

[0035] Figure 9 It is a schematic diagram of the structure of the pull rod in an embodiment of the present invention.

[0036] Figure 10 It is a schematic diagram of the structure of the clamping block and the pull rod in an embodiment of the present invention.

[0037] Figure 11 It is a schematic diagram of the cooperation relationship between the connecting rod and the connecting plate in an embodiment of the present invention.

[0038] Reference Numerals: 01, Header pipe; 02, Heat sink fins; 1, Welding head; 2, Shielding assembly; 21, Sleeve; 211, Ferrule; 212, Installation groove; 213, Installation frame; 214, Opening; 22, Scraper; 221, Connecting plate; 3, Driving assembly; 31, Power component 1; 32, Power component 2; 33, Driving frame; 34, Lead screw; 35, Slide block; 4, Limiting assembly; 41, Block; 411, Top block; 412, First inclined surface; 42, Tie rod; 421, Second inclined surface; 422, Bending part; 43, First elastic part; 5, Reset part; 51, Second elastic part; 52, Pulling rope; 6, Lifting assembly; 61, Hanger; 62, Hook; 7, Placing rack; 8, Connecting rod; 81, Third elastic part; 9, Guiding inclined block; 91, Relief groove. Detailed implementation mode

[0039] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention, but should not be construed as a limitation to the present invention.

[0040] As Figures 1 to 11 shown, the radiator welding device of the present invention includes a welding head 1, a shielding assembly 2, a driving assembly 3, a limiting assembly 4, a reset part 5, and a lifting assembly 6. A placing rack 7 is fixed on the ground. The header pipe 01 is placed on the placing rack 7. The lifting assembly 6 hoists the heat sink fins 02 to cooperate the heat sink fins 02 with the header pipe 01. The driving assembly 3 is arranged on the placing rack 7. The welding head 1 is assembled on the driving assembly 3. The shielding assembly 2 is connected to the welding head 1. The limiting assembly 4 is arranged on the shielding assembly 2. The driving assembly 3 drives the welding head 1 to rotate around the header pipe 01, and at the same time drives the welding head 1 to enter between two heat sink fins 02 to weld the heat sink fins 02. During welding, the shielding assembly 2 shields the welding slag to reduce the phenomenon that the welding slag splashes onto the heat sink fins 02. After welding, the driving assembly 3 drives the welding head 1 to rotate to the initial position. The limiting assembly 4 cooperates with the shielding assembly 2 to clean the welding slag. After cleaning, the reset part 5 drives the welding head 1 to move relative to the shielding assembly 2 to the initial position for welding the next position.

[0041] Referring to Figures 2 to 4 , the shielding assembly 2 includes a sleeve 21 and a scraper 22. The sleeve 21 is arranged in a fan shape around the header pipe 01. The inner side of the sleeve 21 is rotationally abutted against the header pipe 01. The sleeve 21 is sleeved outside the welding head 1. The scraper 22 is arranged in the sleeve 21, and the scraper 22 is rotationally matched with the sleeve 21. The scraper 22 rotates around the header pipe 01 in the sleeve 21. The scraper 22 is slidably abutted against the inner wall of the sleeve 21. The welding head 1 is connected to the scraper 22. The limiting assembly 4 and the reset part 5 are both arranged on the sleeve 21. An opening 214 is provided on one side of the sleeve 21 away from the heat sink fins 02.

[0042] The driving component 3 drives the welding head 1 to rotate in two states: forward rotation and reverse rotation. When rotating forward, the welding head 1 rotates between the heat sinks 02 to weld the heat sinks 02. When rotating in reverse, the welding head 1 moves out from between the heat sinks 02.

[0043] The driving component 3 drives the welding head 1 to rotate forward. The welding head 1 drives the scraper 22 to move. The scraper 22 moves until it abuts against the inner wall of the retaining sleeve 21, thereby driving the retaining sleeve 21 to move synchronously with the scraper 22, so that the retaining sleeve 21 enters between the heat sinks 02 synchronously with the welding head 1. When the welding head 1 performs welding, the retaining sleeve 21 shields the welding slag and collects the welding slag at the same time. After welding is completed, the limiting component 4 cooperates with the heat sink 02 to fix the retaining sleeve 21. At this time, the driving component 3 drives in reverse, the retaining sleeve 21 stops moving, and the welding head 1 drives the scraper 22 to move relative to the retaining sleeve 21. At the same time, the scraper 22 scrapes off the welding slag splashed on the inner wall of the retaining sleeve 21. After the welding head 1 moves outside the heat sink 02, the scraper 22 pushes the welding through the opening 214 out of the retaining sleeve 21. Then the scraper 22 cooperates with the limiting component 4 to release the restriction on the retaining sleeve 21, and the resetting member 5 drives the retaining sleeve 21 to rotate relative to the welding head 1 to the initial position for welding again.

[0044] Refer to Figure 3 、 Figure 5 、 Figure 8 、 Figure 11 , the retaining sleeve 21 includes two card sleeves 211 that are slidably engaged. The scraper 22 includes two connecting plates 221 that are slidably engaged. The welding head 1 is arranged between the two card sleeves 211. The card sleeve 211 slides in the direction towards the welding head 1. The two connecting plates 221 are arranged in one-to-one correspondence with the two card sleeves 211. The connecting plate 221 is slidably engaged with the card sleeve 211, that is, the two connecting plates 221 slide with the card sleeve 211. A connecting rod 8 is arranged on the welding head 1. The connecting rod 8 is slidably engaged with the connecting plate 221. The connecting rod 8 is arranged along the sliding direction of the card sleeve 211. An elastic member three 81 is arranged outside the connecting rod 8. The elastic member three 81 is set as a spring. The spring is connected to the connecting plate 221 and the welding head 1 respectively. The spring is used to drive the two connecting plates 221 to move away from each other.

[0045] After the card sleeve 211 enters between the heat sinks 02, the elastic member three 81 drives the two card sleeves 211 and the two connecting plates 221 to slide away from each other, so that the card sleeve 211 is in sliding contact with the heat sink 02, and at the same time supports the welding head 1 to improve the stability of the welding head 1 during welding.

[0046] Refer to Figure 6 、 Figure 11, a guiding inclined block 9 is provided on one side of the ferrule 211 close to the heat sink 02. The inclined surface of the guiding inclined block 9 is arranged on the side of the guiding inclined block 9 away from the other ferrule 211. When the ferrule 211 rotates with the heat sink 02, the inclined surface of the guiding inclined block 9 abuts against the heat sink 02, so that the two ferrules 211 approach each other under the action of the guiding inclined block 9 until the ferrule 211 enters between the heat sinks 02 along with the welding head 1.

[0047] Refer to Figure 5 and Figure 8 , a relief groove 91 is formed on one side of the connecting plate 221 close to the oil collecting pipe 01. After the retaining sleeve 21 enters between the heat sinks 02, the relief grooves 91 on the two connecting plates 221 coincide. The relief groove 91 corresponds to the weld seam, so as to avoid the scraper 22 contacting the weld seam when the scraper 22 scrapes the welding slag.

[0048] The guiding inclined block 9 is arranged at the edge of the retaining sleeve 21. When the scraper 22 rotates towards the inside of the heat sink 02 along with the welding head 1, it drives the scraper 22 to the inside of the guiding inclined block 9, that is, the scraper 22 drives the retaining sleeve 21 to move synchronously with the welding head 1 through the guiding inclined block 9.

[0049] Refer to Figure 4 , Figure 6 , Figure 7 , Figure 9 , the limiting component 4 includes a clamping block 41, a pull rod 42 and an elastic member 43. The clamping block 41 slides on the retaining sleeve 21, that is, the clamping block 41 is arranged on one of the ferrules 211. The clamping block 41 slides along the direction perpendicular to the retaining sleeve 21, and the clamping block 41 is arranged on the side of the retaining sleeve 21 close to the heat sink 02. An installation groove 212 is arranged on the inner wall of the retaining sleeve 21. The pull rod 42 is assembled in the installation groove 212, and the pull rod 42 is rotatably assembled in the installation groove 212 around the oil collecting pipe 01. One end of the clamping block 41 is arranged outside the retaining sleeve 21, and the other end extends into the installation groove 212 to cooperate with the pull rod 42. A bent portion 422 is arranged at the end of the pull rod 42 away from the clamping block 41, and the bent portion 422 extends into the retaining sleeve 21. The elastic member 43 is connected to the clamping block 41 and the retaining sleeve 21. The elastic member 43 is set as a spring, and the elastic member 43 is used to drive the clamping block 41 to slide in the direction away from the retaining sleeve 21.

[0050] When the retaining sleeve 21 rotates with the welding head 1 for welding, after welding is completed, the clamping block 41 moves to the outside of the heat sink 02, and the elastic member 43 drives the clamping block 41 to move to abut against the heat sink 02. When the welding head 1 moves in the reverse direction, the retaining sleeve 21 remains stationary under the action of the clamping block 41, so that the scraper 22 can move relative to the retaining sleeve 21 to clean the welding slag. After the scraper 22 finishes cleaning, the scraper 22 cooperates with the bent portion 422 of the pull rod 42 to drive the pull rod 42 to move. The movement of the pull rod 42 cooperates with the clamping block 41, so that the clamping block 41 is separated from the heat sink 02, and the restriction on the retaining sleeve 21 is released, so that the resetting member 5 drives the retaining sleeve 21 to rotate to the initial position.

[0051] Reference Figure 9 and Figure 10 A second inclined surface 421 is provided on one side of the pull rod 42 close to the block 41. The block 41 includes a top block 411. The top block 411 is provided on one side of the pull rod 42 and corresponds to the second inclined surface 421. When the pull rod 42 moves, the second inclined surface 421 is driven to cooperate with the top block 411, and the block 41 is driven to move through the top block 411, so as to drive the block 41 to separate from the heat sink 02 and release the restriction on the stop sleeve 21.

[0052] Reference Figure 10 A slope 412 is provided on the block 41. When the blocking sleeve 21 enters into the heat sink 02, the slope 412 cooperates with the heat sink 02, and the slope 412 drives the block 41 to move toward the blocking sleeve 21, and at the same time drives the elastic member 43 to deform until the block 41 moves between the heat sink 02 along with the blocking sleeve 21.

[0053] Reference Figure 5 and Figure 7 , a mounting frame 213 is provided outside the stopper sleeve 21, and the mounting frame 213 is provided on one of the clamping sleeves 211. The reset member 5 includes an elastic member 2 51 and a pull rope 52, and the elastic member 2 51 is provided as a spring, and the spring is provided in the mounting frame 213. One end of the pull rope 52 is connected to the elastic member 2 51, and the other end extends to the outside of the mounting frame 213 and is connected to the side of the scraper 22 away from the welding head 1. At this time, the pull rope 52 is connected to one of the connecting plates 221. When the scraper 22 moves to scrape off the welding slag, the elastic member 2 51 is deformed by the pull rope 52. After the stopper sleeve 21 is separated from the heat sink 02, the elastic member 2 51 drives the stopper sleeve 21 to move relative to the scraper 22 through the pull rope 52, so as to adjust the position of the stopper sleeve 21.

[0054] Reference Figure 1 and Figure 2 The driving assembly 3 includes a power piece 1 31, a power piece 2 32, a driving frame 33, a lead screw, and a slider 35. The driving frame 33 and the placement frame 7 are rotatably matched, the lead screw 34 is rotatably matched with the driving piece, the lead screw 34 is arranged along the arrangement direction of the plurality of heat sinks 02, the slider 35 is sleeved on the outside of the lead screw 34 and is threadedly matched with the lead screw 34, the slider 35 is slidably matched with the driving frame 33, the power piece 1 31 and the power piece 2 32 are both configured as motors, the power piece 1 31 is arranged on the placement frame 7, the power piece 2 32 is arranged on the driving frame 33, the output end of the power piece 1 31 is connected to the driving frame 33 for driving the driving frame 33 to rotate, and the output end of the power piece 2 32 is connected to the lead screw 34. The welding head 1 is connected to the slider 35.

[0055] The first power component 31 drives the welding head 1 to rotate around the oil collecting pipe 01 through a driving component, welds the heat sink 02 on the oil collecting pipe 01, and the second power component 32 drives the welding head 1 to axially move through the lead screw 34, so that the welding head 1 moves to different positions and sequentially welds a plurality of heat sinks 02.

[0056] Referring to Figure 8 , the welding head 1 is slidably matched with the slider 35, and the welding head 1 slides on the slider 35 along the length direction of the lead screw 34. When the ferrule sleeves 211 approach each other and enter between the heat sinks 02, the third elastic member 81 drives the welding head 1 to move, so that the welding head 1 moves to correspond to the middle of the two ferrule sleeves 211, corrects the welding head 1, and welds at a specified position, improving the welding accuracy.

[0057] Referring to Figure 1 , the lifting assembly 6 includes a hanger 61 and a hook 62. The hanger 61 is placed on the ground, the hook 62 is installed on the hanger 61, and the hook 62 hoists the heat sink 02 to hoist the heat sink 02 to a specified position for subsequent welding.

[0058] The implementation principle of the present invention is as follows: When the welding head 1 rotates, it drives the retaining sleeve 21 to move into the heat sink 02. When welding the heat sink 02, the retaining sleeve 21 is used for shielding to reduce the phenomenon that welding slag splashes to the heat sink 02 and reduce the influence of the high temperature during welding on the heat sink 02. After welding is completed, the clamping block 41 cooperates with the heat sink 02 to fix the retaining sleeve 21. When the welding head 1 rotates in the reverse direction, it drives the scraper 22 to move. The scraper 22 scrapes the welding slag adhering to the inner wall of the retaining sleeve 21, scrapes the welding slag on the oil collecting pipe 01, and discharges the welding slag through the opening 214 of the retaining sleeve 21, realizing the cleaning of the welding slag inside the retaining sleeve 21 for subsequent welding.

[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

Claims

1. A heat sink welding device, comprising a welding head (1), characterized in that: The device also includes a driving assembly (3) connected to the welding head (1) and driving the welding head (1) to rotate around the oil collecting pipe (01) to weld the heat sink (02); a stopper sleeve (21) is provided on the outside of the welding head (1); the side of the stopper sleeve (21) is in rotational contact with the oil collecting pipe (01); a scraper (22) is provided inside the stopper sleeve (21) to rotate around the oil collecting pipe (01); the scraper (22) is in sliding contact with the inner wall of the stopper sleeve (21); the scraper (22) is connected to the welding head (1) to rotate with the welding head (1); a limit assembly (4) and a reset member (5) are provided on the stopper sleeve (21); the reset member (5) is connected to the scraper (22) Then, the scraper (22) abuts against the stop sleeve (21) to drive the stop sleeve (21) to rotate with the welding head (1) to between the two heat sinks (02). After welding, the limiting assembly (4) cooperates with the heat sink (02) to fix the stop sleeve (21). The welding head (1) rotates and resets to drive the scraper (22) to slide relative to the stop sleeve (21) to scrape off the welding slag on the inner wall of the stop sleeve (21). At the same time, the reset member (5) is deformed. After the welding head (1) moves to the outside of the heat sink (02), the limiting assembly (4) releases the restriction on the stop sleeve (21), and the reset member (5) drives the stop sleeve (21) to rotate relative to the welding head (1) to the initial position.

2. The heat sink welding device according to claim 1, characterized in that: The limit assembly (4) comprises a clamping block (41), a pull rod (42), and an elastic member (43) cooperating with the clamping block (41). The clamping block (41) slides on the stop sleeve (21). The elastic member (43) is used to drive the clamping block (41) away from the stop sleeve (21). One end of the pull rod (42) cooperates with the clamping block (41), and the other end is provided with a bent portion (422). The bent portion (422) extends into the interior of the stop sleeve (21). 2) The block (41) is rotated around the oil collecting pipe (01) and assembled inside the stopper sleeve (21). After welding, the block (41) moves to the outside of the heat sink (02). The spring (43) drives the block (41) to abut against the side of the heat sink (02). After the scraper (22) scrapes off the welding slag, it abuts against the bent portion (422) of the pull rod (42) and drives the pull rod (42) to rotate. The pull rod (42) drives the block (41) to move to the heat sink (02) and separate.

3. The heat sink welding device according to claim 2, characterized in that: The clamping block (41) is provided with an inclined surface 1 (412); when the stopper sleeve (21) enters the heat sink (02), the inclined surface 1 (412) cooperates with the heat sink (02) to drive the clamping block (41) to move toward the heat sink (02).

4. The heat sink welding device according to claim 2, characterized in that: A second inclined surface (421) is provided on one end of the pull rod (42) close to the clamping block (41), and the clamping block (41) includes a top block (411). When the pull rod (42) rotates, the second inclined surface (421) is driven to cooperate with the top block (411) to drive the clamping block (41) to move and separate from the heat sink (02).

5. The heat sink welding device according to claim 1, characterized in that: The stopper sleeve (21) comprises two slidably matched clamping sleeves (211), the scraper (22) comprises two slidably matched connecting plates (221), the two connecting plates (221) are arranged in a one-to-one correspondence with the two clamping sleeves (211), the connecting plates (221) and the clamping sleeves (211) are slidably matched, a connecting rod (8) is arranged on the welding head (1), the connecting rod (8) and the connecting plate (221) are slidably matched, when the two clamping sleeves (211) slide relative to each other, the connecting rod (8) slides relative to the connecting plate (221), and a third elastic member (81) is arranged outside the connecting rod (8), the third elastic member (81) is arranged between the connecting plate (221) and the welding head (1) and is used to drive the two connecting plates (221) to move away from each other.

6. The heat sink welding device according to claim 5, characterized in that: A guide bevel (9) is provided on one side of the ferrule (211) close to the heat sink (02); when the ferrule (211) enters between the heat sinks (02), the inclined surface of the guide bevel (9) cooperates with the heat sink (02), and the guide bevel (9) drives the two ferrules (211) to approach each other and enter between the heat sinks (02).

7. The heat sink welding device according to claim 6, characterized in that: A placement frame (7) is arranged on the driving assembly (3), and the placement frame (7) is fixed on the ground. The driving assembly (3) comprises a power piece 1 (31), a power piece 2 (32), a driving frame (33), a lead screw (34), and a slider (35). The driving frame (33) is rotationally matched with the placement frame (7), the lead screw (34) is rotationally matched with the driving frame (33), the slider (35) is threadedly matched with the lead screw (34) and is slidably arranged on the driving frame (33), and the welding head (1) is assembled on the slider (35). The power piece 1 (31) is arranged on the placement frame (7) and connected to the driving frame (33) for driving the driving frame (33) to rotate, the power piece 2 (32) is arranged on the driving frame (33) and connected to the lead screw (34) for driving the lead screw (34) to rotate, and the lead screw (34) rotates to drive the welding head (1) to move through the slider (35).

8. The heat sink welding device according to claim 7, characterized in that: The welding head (1) and the slider (35) are slidably matched, and when the clamping sleeve (211) enters between the heat sinks (02), the elastic member 3 (81) drives the welding head (1) to move relative to the slider (35), so that the welding head (1) is located between the two clamping sleeves (211).

9. The heat sink welding device according to claim 1, characterized in that: An opening (214) is provided on the side of the retaining sleeve (21), and the scraper (22) moves towards the opening (214) when scraping off welding slag, and the scraped welding slag is discharged to the outside of the retaining sleeve (21) through the opening (214).

10. The heat sink welding device according to claim 1, characterized in that: The reset member (5) comprises a second elastic member (51) and a pull rope (52); the second elastic member (51) is connected to the stop sleeve (21); two ends of the pull rope (52) are respectively connected to the second elastic member (51) and the scraper (22); when the scraper (22) moves relative to the stop sleeve (21), the second elastic member (51) is stretched by the pull rope (52).

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