Welding structure and welding method for active metal brazing

Abstract

The invention relates to the technical field of welding equipment, in particular to a welding structure for active metal brazing and a welding method.According to the technical scheme, the welding structure comprises a machining table, a weldment is arranged at the top end of the machining table, and a mounting table is arranged at the top end of the machining table. The positions of the welding gun and the active brazing filler metal can be changed by arranging the driving assembly, so that the weldments can be continuously welded in one direction, the active brazing filler metal can be conveyed downwards when the mounting table moves by arranging the pushing structure, the active brazing filler metal can be continuously in contact with the weldments during welding, and the welding efficiency is improved. By arranging the auxiliary assembly, the top end of the active brazing filler metal can be limited, by arranging the guide structure, the active brazing filler metal can be prevented from inclining in the conveying process, and the problem that the welding quality is uneven due to the fact that the brazing filler metal is held by hand for welding is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding equipment, in particular to a welding structure and a welding method for active metal brazing. Background Art

[0002] Welding is a process that heats the solder and the workpiece to melt the solder into the workpiece and firmly connect the workpieces. Active metal brazing is a process that uses gold-based brazing materials containing active elements to connect ceramics, metals or composite materials at high temperatures. Its core is to form a metallurgical bond by reacting the active elements in the brazing material with brazing materials such as ceramics, thereby firmly welding the workpieces.

[0003] When using active metal brazing filler metal to weld straight workpieces, an operator usually holds the filler metal and a welding gun, places the end of the filler metal on the workpiece, and heats the filler metal and the workpiece with the welding gun to weld the filler metal to the workpiece. However, the manual holding of the filler metal and the welding gun is easily affected by the operator's technique, resulting in uneven welding quality. Therefore, the present application proposes a welding structure and a welding method for active metal brazing. Summary of the Invention

[0004] The purpose of the present invention is to address the problem in the background art that handheld brazing causes uneven welding quality, and to propose a welding structure and a welding method for active metal brazing.

[0005] In a first aspect, the present invention provides a welding structure for active metal brazing, comprising a processing table, a weldment being provided at the top of the processing table, a mounting table being provided at the top of the processing table, an active brazing filler metal being provided above the mounting table, a welding gun being fixedly connected to one side of the mounting table, a driving assembly for driving the mounting table to move being provided at the top of the processing table, a blanking assembly for causing the active brazing filler metal to adhere to the weldment being installed on one side of the mounting table, the blanking assembly comprising a pushing structure, an auxiliary structure, and a guiding structure; The pushing structure is used to drive the active solder to move downward to the weldment during welding, and the pushing structure includes a first roller, which is attached to the bottom of the active solder; The auxiliary structure is used to assist in limiting the upper portion of the active solder, and the auxiliary structure includes a second roller, and the second roller is attached to the top of the active solder; The guide structure is used to guide the movement of the active solder.

[0006] Optionally, the driving assembly includes a motor, which is fixed to the top of the processing table, and the output end of the motor is fixed with a screw, the outer wall of the screw is threadedly connected to a nut, a block is installed at the end of the screw away from the motor, the top of the nut is fixed with a hydraulic rod, the output end of the hydraulic rod is fixed to the bottom of the mounting table, a slide groove is provided at the top of the processing table, and a slider is fixed to the bottom of the nut, and the slider is slidably connected to the inner wall of the slide groove.

[0007] Optionally, the pushing structure also includes a rack, which is fixedly connected to the top of the processing table, a fixed rod is fixedly connected to one side of the mounting table, one side of the fixed rod is rotatably connected to a transmission rod, the bottom of the transmission rod is fixedly connected to a first gear, the first gear is meshed with one side of the rack, the top of the transmission rod is fixedly connected to a first bevel gear, one side of the first bevel gear is meshed with a second bevel gear, one side of the mounting table is fixedly connected to a mounting plate, one side of the first bevel gear is fixedly connected to a first rotating rod, the first rotating rod is rotatably connected to one side of the mounting plate, and one end of the first rotating rod is fixedly connected to one side of the first roller.

[0008] Optionally, the auxiliary structure also includes a second gear, which is fixed to the outer wall of the first rotating rod, the top of the second gear is engaged with a third gear, one side of the third gear is fixed to the second rotating rod, and one end of the second rotating rod is fixed to one side of the second roller.

[0009] Optionally, a convex strip is fixedly connected to the inner wall of the first roller, the convex strip is made of rubber, the convex strip is arc-shaped, multiple groups of convex strips are provided, and are distributed in a circle on the inner wall of the first roller, and the inner wall of the second roller is also provided with multiple groups of convex strips.

[0010] Optionally, the guiding structure includes a first support plate, which is fixed to the top of the mounting platform, and a second support plate is fixed to one side of the mounting platform, and the first support plate and the second support plate are respectively arranged on the top and bottom of the active solder.

[0011] Optionally, a pad is fixedly connected to the inner wall of the first support plate, the pad is made of rubber, and has an arc shape. Two groups of pads are provided and are respectively distributed on the inner walls of the first support plate and the second support plate.

[0012] Optionally, a long rod is fixedly connected to one side of the mounting platform, a contact block is fixedly connected to the bottom of one end of the long rod, a scraper is fixedly connected to one side of the contact block, and a wiping pad is fixedly connected to the other side of the contact block.

[0013] Optionally, two groups of limit rods are fixed to the top of the processing table, and a fixed frame is provided above the processing table. The fixed frame is provided between the two groups of limit rods. A pull rod is slidably connected to one side of the fixed frame, and a push block is fixed to one end of the pull rod. A spring is installed between the push block and the fixed frame.

[0014] In a second aspect, the present invention provides an active metal welding method, which is applied to the active metal brazing welding structure described in the first aspect, and the method comprises the following steps: S1: When preparing for welding, place the weldment on the processing table and fix the position of the weldment with two sets of fixing frames and push blocks, and cooperate with two sets of limit rods to ensure that the weldment is firmly positioned on the processing table; S2: The mounting platform, welding gun, active brazing filler metal, and other structures are moved downward by retracting the hydraulic rod until the first gear is engaged with the rack. The welding gun can then be used to heat the weldment and active brazing filler metal for welding. Subsequently, the motor drives the screw to rotate, thereby driving the hydraulic rod, mounting platform, welding gun, active brazing filler metal, and other structures above the nut to move, thereby maintaining continuous welding of the weldment. S3: When the mounting table moves, it will drive the long rod and the contact block to move together. When the scraper on the contact block moves on the surface of the weldment, it can scrape off the impurities remaining on the surface of the weldment. The wiping pad set on the other side of the contact block can wipe off the fine impurities scattered on the surface of the weldment. It can clean the surface of the weldment during mobile welding to prevent impurities on the weldment surface from affecting the welding. S4: When the mounting table moves, the first gear can be rotated on one side of the rack. When the first gear rotates, it will drive the transmission rod, the first bevel gear, the second bevel gear, the first rotating rod and the first roller to rotate, and the second roller can be rotated through the second gear and the third gear. The first roller can cooperate with the second roller to prompt the active solder to move a short distance downward, so that the supply of active solder can be maintained during welding.

[0015] Compared with the prior art, this application has at least one of the following beneficial technical effects: The present invention can heat the upper part of the active solder and the weldment through the welding gun, so that the active solder reaches the melting point and then melts, and the two groups of weldments are welded by the molten solder. By setting a driving component, the position of the welding gun and the active solder can be changed, so that the weldments can be continuously welded in one direction. By setting a pushing structure, the active solder can be transported downward when the mounting table moves, so as to keep the active solder in constant contact with the weldment during welding. By setting an auxiliary component, the top end of the active solder can be limited. By setting a guiding structure, the active solder can be prevented from being skewed during transportation, thereby solving the problem of uneven welding quality caused by hand-held solder welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1A schematic diagram of the overall structure of the welding structure for active metal brazing is given; Figure 2 It is a schematic diagram of the overall cross-sectional structure of the welding structure for active metal brazing; Figure 3 for Figure 2 A schematic diagram of the enlarged structure at point A; Figure 4 A schematic diagram of the drive assembly structure of the welding structure for active metal brazing; Figure 5 This is a schematic diagram of the structure of the mounting platform on one side of the welding structure for active metal brazing; Figure 6 A schematic diagram of a push structure for a welding structure for active metal brazing; Figure 7 A schematic diagram of the structure of the first roller and the second roller of the welding structure for active metal brazing; Figure 8 A schematic diagram of the structure of the first support plate and the second support plate of the welding structure for active metal brazing; Figure 9 Schematic diagram of the scraper and wiping pad structure for active metal brazing; Figure 10 This is a schematic diagram of the fixed frame and push block structure of the welding structure for active metal brazing.

[0017] Figure numerals: 1. processing table; 2. weldment; 3. mounting table; 4. welding gun; 5. motor; 6. screw; 7. nut; 8. stopper; 9. slider; 10. slide; 11. hydraulic rod; 12. rack; 13. fixing rod; 14. transmission rod; 15. first gear; 16. first bevel gear; 17. second bevel gear; 18. first roller; 19. convex strip; 20. second gear; 21. third gear; 22. second roller; 24. first support plate; 25. second support plate; 26. pad; 27. long rod; 28. contact block; 29. ​​scraper; 30. wiping pad; 31. limit rod; 32. fixing frame; 33. pull rod; 34. push block; 35. spring; 36. active solder; 37. mounting plate. DETAILED DESCRIPTION

[0018] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0021] like Figures 1-4 As shown, the welding structure for active metal brazing proposed in the present invention includes a processing table 1, a weldment 2 is provided at the top of the processing table 1, a mounting table 3 is provided at the top of the processing table 1, an active brazing material 36 is provided above the mounting table 3, a welding gun 4 is fixedly connected to one side of the mounting table 3, and a driving assembly for driving the mounting table 3 to move is provided at the top of the processing table 1, the driving assembly includes a motor 5, the motor 5 is fixedly connected to the top of the processing table 1, a screw 6 is fixedly connected to the output end of the motor 5, a nut 7 is threadedly connected to the outer wall of the screw 6, a stopper 8 is installed at the end of the screw 6 away from the motor 5, a hydraulic rod 11 is fixedly connected to the top of the nut 7, and the output end of the hydraulic rod 11 is fixedly connected to the bottom of the mounting table 3, a slide groove 10 is provided at the top of the processing table 1, a slider 9 is fixedly connected to the bottom of the nut 7, and the slider 9 is slidably connected to the inner wall of the slide groove 10; In order to solve the problem of uneven welding quality caused by hand-held solder welding, when welding the workpiece 2, the active solder 36 and the top of the workpiece 2 can be heated by the welding gun 4, so that the active solder 36 reaches the melting point and melts, and the two groups of workpieces 2 are welded by the molten solder, and then the motor 5 can be started, and the motor 5 can drive the screw 6 to rotate. When the screw 6 rotates, it will drive the nut 7 set on the outer wall to move to one side. When the nut 7 moves, it can drive the slider 9 to slide on the inner wall of the slide groove 10, thereby limiting the movement trajectory of the nut 7, and when the nut 7 moves, it can also drive the upper hydraulic rod 11 and the mounting platform 3 to move together. When the mounting platform 3 moves, it will drive the welding gun 4 and the active solder 36 to move together. When one welding is completed, the welding gun 4 and the active solder 36 can be moved to one side, and the welding process can be continuously performed on the top of the workpiece 2.

[0022] As an implementation method, Figure 5-Figure 8As shown, in order to ensure the continuous supply of active solder 36, a blanking assembly for causing the active solder 36 to adhere to the weldment 2 is installed on one side of the mounting table 3, and the blanking assembly includes a pushing structure, an auxiliary structure and a guiding structure; the pushing structure is used to drive the active solder 36 to move downward to the weldment 2 during welding, and the pushing structure includes a first roller 18, which is attached to the bottom of the active solder 36, and the pushing structure also includes a rack 12, which is fixed to the top of the processing table 1, and a fixed rod 13 is fixed to one side of the mounting table 3, and one side of the fixed rod 13 is rotatably connected to the weldment 2. There is a transmission rod 14, the bottom of the transmission rod 14 is fixed with a first gear 15, the first gear 15 is meshed with one side of the rack 12, the top of the transmission rod 14 is fixed with a first bevel gear 16, one side of the first bevel gear 16 is meshed with a second bevel gear 17, one side of the mounting platform 3 is fixed with a mounting plate 37, one side of the first bevel gear 16 is fixed with a first rotating rod, the first rotating rod is rotatably connected to one side of the mounting plate 37, one end of the first rotating rod is fixed to one side of the first roller 18, the auxiliary structure is used to assist in limiting the upper side of the active solder 36, the auxiliary structure includes a first The second roller 22 is attached to the top of the active solder 36. The auxiliary structure also includes a second gear 20. The second gear 20 is fixed to the outer wall of the first rotating rod. The top of the second gear 20 is engaged with a third gear 21. One side of the third gear 21 is fixed to the second rotating rod. One end of the second rotating rod is fixed to one side of the second roller 22. The inner wall of the first roller 18 is fixed with a ridge 19. The material of the ridge 19 is rubber. The shape of the ridge 19 is arc-shaped. The ridge 19 is provided in multiple groups and is distributed circumferentially on the inner wall of the first roller 18. The second roller The inner wall of 22 is also provided with multiple groups of ridges 19, and the guide structure is used to guide the movement of the active solder 36. The guide structure includes a first support plate 24, which is fixed to the top of the mounting platform 3. A second support plate 25 is fixed to one side of the mounting platform 3. The first support plate 24 and the second support plate 25 are respectively arranged on the top and bottom of the active solder 36. A pad 26 is fixed to the inner wall of the first support plate 24. The pad 26 is made of rubber and has an arc shape. Two groups of pads 26 are provided and are respectively distributed on the inner walls of the first support plate 24 and the second support plate 25. When welding is required, the hydraulic rod 11 can be retracted, and the mounting platform 3 is driven downward by the retraction of the hydraulic rod 11. When the mounting platform 3 moves, the welding gun 4, the active solder 36, the fixing rod 13, the transmission rod 14 and the first gear 15 and other structures are driven downward together until the first gear 15 moves to a height that meshes with the rack 12. At this time, the weldment 2 can be welded. When the mounting platform 3 moves, the first gear 15 can be driven to move on one side of the rack 12, thereby driving the first gear 15 to rotate. When the first gear 15 rotates, it drives the transmission rod 14 and the first bevel gear 16 set above to rotate. The first bevel gear When 16 rotates, it will drive the second bevel gear 17 meshed on one side to rotate. The second bevel gear 17 is installed on the mounting plate 37 through the first rotating rod. Therefore, when the second bevel gear 17 rotates, it will drive the first roller 18 to rotate through the first rotating rod. Since the first roller 18 is set at the bottom of the active solder 36, the first roller 18 will drive the active solder 36 to move downward when it rotates. When the mounting table 3 moves, the active solder 36 can be driven to move downward a short distance to ensure the supply of the active solder 36 above the weldment 2. When the second bevel gear 17 drives the first rotating rod and the first roller 18 to rotate, it will simultaneously drive the outer wall of the first rotating rod The second gear 20 rotates, and when the second gear 20 rotates, it drives the third gear 21 meshed above to rotate, and the third gear 21 drives the second rotating rod and the second roller 22 set on one side to rotate together, so as to limit the upper side of the active solder 36 and cooperate with the first roller 18 to transmit the active solder 36. By providing multiple groups of ridges 19 on the inner walls of the first roller 18 and the second roller 22, when the first roller 18 cooperates with the second roller 22 to transmit the active solder 36 downward, the friction between the first roller 18, the second roller 22 and the active solder 36 can be increased through the ridges 19 made of rubber, thereby improving the friction between the first roller 18, the second roller 22 and the active solder 36. High gripping force is conducive to transferring the active solder 36 downward. By setting a first support plate 24 above the mounting table 3, the upper position of the active solder 36 can be limited, so that the active solder 36 slides on the inner wall of the first support plate 24. By setting a second support plate 25, the position below the active solder 36 can be limited to prevent the active solder 36 from tilting during transfer. By setting a rubber pad 26 on the inner walls of the first support plate 24 and the second support plate 25, the surface of the active solder 36 can be protected when the active solder 36 is placed on the inner walls of the first support plate 24 and the second support plate 25 to prevent the active solder 36 from being worn during transfer.

[0023] It should be noted that if Figure 9 In order to pre-treat the surface of the weldment 2, a long rod 27 is fixed to one side of the mounting platform 3, a contact block 28 is fixed to the bottom of one end of the long rod 27, a scraper 29 is fixed to one side of the contact block 28, and a wiping pad 30 is fixed to the other side of the contact block 28; When the mounting table 3 moves, the long rod 27 and the contact block 28 on one side can be driven to move together, and the scraper 29 on one side of the contact block 28 can scrape off the impurities remaining on the surface of the weldment 2 when it moves on the surface of the weldment 2, and the wiping pad 30 provided on the other side of the contact block 28 can wipe off the fine impurities scattered on the surface of the weldment 2. Since the long rod 27 and the contact block 28 are provided in front of the direction of travel, the surface of the weldment 2 can be cleaned before the welding process begins to prevent impurities on the surface of the weldment 2 from affecting the welding.

[0024] Further, such as Figure 10 In order to fix the bottom of the weldment 2, two groups of limiting rods 31 are fixed to the top of the processing table 1. A fixed frame 32 is provided above the processing table 1. The fixed frame 32 is provided between the two groups of limiting rods 31. A pull rod 33 is slidably connected to one side of the fixed frame 32. A push block 34 is fixed to one end of the pull rod 33. A spring 35 is installed between the push block 34 and the fixed frame 32. By setting two sets of limit rods 31 above the processing table 1, the fixed frame 32 can be easily installed between the two sets of limit rods 31. When the weldment 2 needs to be welded, the weldment 2 can be placed on the processing table 1, and the two sets of fixed frames 32 can be set at both ends of the weldment 2. The pull rod 33 is pulled to drive the push block 34 to move to one side, so that the weldment 2 is set between the push block 34 and the fixed frame 32. Then the pull rod 33 is released, and the spring 35 can provide thrust for the push block 34, so that the weldment 2 is stuck on the inner wall of the push block 34 and the fixed frame 32, so that the two ends of the weldment 2 can be fixed, which is convenient for maintaining the stability of the bottom ends of the weldment 2 during welding.

[0025] Active metal welding method, the method comprising the following steps: S1: In the welding preparation stage, the weldment 2 can be placed on the processing table 1, and the position of the weldment 2 can be fixed by two sets of fixing frames 32 and push blocks 34, and the weldment 2 can be firmly positioned on the processing table 1 by cooperating with two sets of limiting rods 31; S2: The mounting platform 3, the welding gun 4, and the active brazing filler metal 36 are moved downward by retracting the hydraulic rod 11 until the first gear 15 is engaged with the rack 12. The welding gun 4 can then heat the workpiece 2 and the active brazing filler metal 36 for welding. Subsequently, the motor 5 drives the screw 6 to rotate, thereby driving the hydraulic rod 11, the mounting platform 3, the welding gun 4, and the active brazing filler metal 36 above the nut 7 to move, thereby maintaining continuous welding of the workpiece 2. S3: When the mounting table 3 moves, it drives the long rod 27 and the contact block 28 to move together. When the scraper 29 on the contact block 28 moves on the surface of the weldment 2, it can scrape off the impurities remaining on the surface of the weldment 2. The wiping pad 30 provided on the other side of the contact block 28 can wipe off the fine impurities scattered on the surface of the weldment 2. It can clean the surface of the weldment 2 during mobile welding to prevent impurities on the surface of the weldment 2 from affecting the welding process. S4: When the mounting table 3 moves, the first gear 15 can be rotated on one side of the rack 12. When the first gear 15 rotates, it will drive the transmission rod 14, the first bevel gear 16, the second bevel gear 17, the first rotating rod and the first roller 18 to rotate, and the second roller 22 can be rotated through the second gear 20 and the third gear 21. The first roller 18 can cooperate with the second roller 22 to prompt the active solder 36 to move a short distance downward, so that the supply of active solder 36 can be maintained during welding.

[0026] Working principle: To solve the problem of uneven welding quality caused by hand-held solder welding, the fixing frame 32 can be installed between the two sets of limit rods 31, then the weldment 2 is placed on the processing table 1, and the two sets of fixing frames 32 are set at both ends of the weldment 2. The pull rod 33 is pulled to drive the push block 34 to move to one side, so that the weldment 2 is set between the push block 34 and the fixing frame 32. Then, the pull rod 33 is released, and the spring 35 can provide thrust for the push block 34, so that the weldment 2 is stuck between the push block 34 and the inner wall of the fixing frame 32, thereby fixing the two ends of the weldment 2, which is convenient for maintaining the stability of the bottom ends of the weldment 2 during the welding process; When welding the weldment 2, the hydraulic rod 11 can be retracted, and the mounting platform 3 is driven downward by the retraction of the hydraulic rod 11. When the mounting platform 3 moves, it will drive the welding gun 4, active solder 36, fixed rod 13, transmission rod 14 and first gear 15 and other structures to move downward together until the first gear 15 moves to a height that meshes with the rack 12. At this time, the weldment 2 can be welded. The active solder 36 and the top of the weldment 2 can be heated by the welding gun 4, so that the active solder 36 reaches the melting point and melts, and the two groups of weldments 2 are welded by the molten solder. Then the motor 5 can be started to drive the screw 6 to rotate, and the screw 6 will drive the nut 7 set on the outer wall to move to one side when it rotates. When the nut 7 moves, it can drive the slider 9 to slide on the inner wall of the slide groove 10, thereby limiting the movement trajectory of the nut 7. When the nut 7 moves, it can also drive the hydraulic rod 11 and the mounting platform 3 above to move together. When the mounting platform 3 moves, it will drive the welding gun 4 and the active solder 36 to move together. When welding is completed at one place, the welding gun 4 and the active solder 36 can be moved to one side, and the welding process can be continuously performed on the top of the weldment 2. When the mounting platform 3 moves, it can drive the long rod 27 and the contact block 28 on one side to move together. When the scraper 29 on one side of the contact block 28 moves on the surface of the weldment 2, it can scrape off the impurities remaining on the surface of the weldment 2, and the wiping pad 30 provided on the other side of the contact block 28 can wipe off the fine impurities scattered on the surface of the weldment 2. Since the long rod 27 and the contact block 28 are arranged in front of the travel direction, the surface of the weldment 2 can be cleaned before the welding process begins to prevent impurities on the surface of the weldment 2 from affecting the welding. When the mounting platform 3 moves, it can drive the first gear 15 to move on one side of the rack 12, so that the first gear 15 rotates when it moves. When the first gear 15 rotates, it will drive the transmission rod 14 and the first bevel gear 16 to rotate. The first bevel gear 16 will in turn drive the second bevel gear 17 meshing with it to rotate. The second bevel gear 17 drives the first roller 18 to rotate through the first rotating rod. Since the first roller 18 is arranged at the bottom of the active solder 36, it can drive the active solder 36 to move downward. When the mounting platform 3 moves, the active solder 36 can be driven to move downward a short distance to ensure the supply of the active solder 36 above the weldment 2. When the second bevel gear 17 drives the first rotating rod and the first roller 18 to rotate, it will simultaneously drive the second gear 20 arranged on the outer wall of the first rotating rod to rotate. When the second gear 20 rotates, it will drive the third gear 21 meshing above it to rotate. The third gear 21 will drive the second rotating rod and the second roller 22 arranged on one side to rotate together, so that the top of the active solder 36 can be limited. The first roller 18 is used to transfer the active solder 36. By setting a plurality of ridges 19 on the inner wall of the first roller 18 and the second roller 22, when the first roller 18 cooperates with the second roller 22 to transfer the active solder 36 downward, the ridges 19 made of rubber can be used to increase the friction between the first roller 18, the second roller 22 and the active solder 36, thereby improving the gripping force and facilitating the downward transfer of the active solder 36. By setting a first support plate 24 above the mounting platform 3, the active solder can be The upper position of the active solder 36 is limited so that the active solder 36 slides on the inner wall of the first support plate 24. By setting the second support plate 25, the position below the active solder 36 can be limited to prevent the active solder 36 from being skewed during transfer. By setting a rubber pad 26 on the inner walls of the first support plate 24 and the second support plate 25, the surface of the active solder 36 can be protected when the active solder 36 is placed on the inner walls of the first support plate 24 and the second support plate 25 to prevent the active solder 36 from being worn during transfer.

[0027] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A welding structure for active metal brazing, comprising a processing table (1), a weldment (2) being provided at the top of the processing table (1), characterized in that: The top of the processing table (1) is provided with a mounting table (3), an active solder (36) is provided above the mounting table (3), a welding gun (4) is fixedly connected to one side of the mounting table (3), a driving component for driving the mounting table (3) to move is provided at the top of the processing table (1), and a blanking component for causing the active solder (36) to adhere to the weldment (2) is installed on one side of the mounting table (3), and the blanking component includes a pushing structure, an auxiliary structure and a guiding structure; The pushing structure is used to drive the active solder (36) to move downward onto the weldment (2) during welding, and the pushing structure includes a first roller (18), and the first roller (18) is attached to the bottom of the active solder (36); The auxiliary structure is used to assist in limiting the upper portion of the active solder (36), and the auxiliary structure comprises a second roller (22), wherein the second roller (22) is attached to the top of the active solder (36); The guide structure is used to guide the movement of the active solder (36).

2. The welding structure for active metal brazing according to claim 1, characterized in that: The driving assembly comprises a motor (5), the motor (5) is fixedly connected to the top of the processing table (1), the output end of the motor (5) is fixedly connected to a screw (6), the outer wall of the screw (6) is threadedly connected to a nut (7), a stopper (8) is installed at the end of the screw (6) away from the motor (5), the top of the nut (7) is fixedly connected to a hydraulic rod (11), the output end of the hydraulic rod (11) is fixedly connected to the bottom of the mounting table (3), a slide groove (10) is provided at the top of the processing table (1), a slider (9) is fixedly connected to the bottom of the nut (7), and the slider (9) is slidably connected to the inner wall of the slide groove (10).

3. The welding structure for active metal brazing according to claim 2, characterized in that: The pushing structure further includes a rack (12), the rack (12) being fixedly connected to the top of the processing table (1), a fixed rod (13) being fixedly connected to one side of the mounting table (3), a transmission rod (14) being rotatably connected to one side of the fixed rod (13), a first gear (15) being fixedly connected to the bottom of the transmission rod (14), the first gear (15) being meshed with one side of the rack (12), a first bevel gear (16) being fixedly connected to the top of the transmission rod (14), a second bevel gear (17) being meshed with one side of the first bevel gear (16), a mounting plate (37) being fixedly connected to one side of the mounting table (3), a first rotating rod being fixedly connected to one side of the first bevel gear (16), the first rotating rod being rotatably connected to one side of the mounting plate (37), and one end of the first rotating rod being fixedly connected to one side of the first roller (18).

4. The welding structure for active metal brazing according to claim 3, characterized in that: The auxiliary structure further comprises a second gear (20), the second gear (20) being fixedly connected to the outer wall of the first rotating rod, the top end of the second gear (20) being meshed with a third gear (21), one side of the third gear (21) being fixedly connected to the second rotating rod, and one end of the second rotating rod being fixedly connected to one side of the second roller (22).

5. The welding structure for active metal brazing according to claim 4, characterized in that: The inner wall of the first roller (18) is fixedly connected with a convex strip (19), the material of the convex strip (19) is rubber, the shape of the convex strip (19) is arc-shaped, and the convex strips (19) are provided in multiple groups and are distributed in a circular manner on the inner wall of the first roller (18). The inner wall of the second roller (22) is also provided with multiple groups of convex strips (19).

6. The welding structure for active metal brazing according to claim 5, characterized in that: The guide structure comprises a first support plate (24), the first support plate (24) being fixedly connected to the top of the mounting platform (3), a second support plate (25) being fixedly connected to one side of the mounting platform (3), and the first support plate (24) and the second support plate (25) being respectively arranged on the top and bottom of the active solder (36).

7. The welding structure for active metal brazing according to claim 6, characterized in that: A pad (26) is fixedly connected to the inner wall of the first support plate (24). The pad (26) is made of rubber and has an arc shape. Two groups of pads (26) are provided and are respectively distributed on the inner walls of the first support plate (24) and the second support plate (25).

8. The welding structure for active metal brazing according to claim 7, characterized in that: A long rod (27) is fixedly connected to one side of the mounting platform (3), a contact block (28) is fixedly connected to the bottom of one end of the long rod (27), a scraper (29) is fixedly connected to one side of the contact block (28), and a wiping pad (30) is fixedly connected to the other side of the contact block (28).

9. The welding structure for active metal brazing according to claim 8, characterized in that: Two groups of limiting rods (31) are fixedly connected to the top of the processing table (1), and a fixed frame (32) is provided above the processing table (1). The fixed frame (32) is provided between the two groups of limiting rods (31). A pull rod (33) is slidably connected to one side of the fixed frame (32), and a push block (34) is fixedly connected to one end of the pull rod (33). A spring (35) is installed between the push block (34) and the fixed frame (32).

10. An active metal welding method, applied to the active metal brazing welding structure according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: S1: When preparing for welding, the weldment (2) is placed on the processing table (1), and the position of the weldment (2) is fixed by two sets of fixing frames (32) and push blocks (34), and the weldment (2) is firmly positioned on the processing table (1) by cooperating with two sets of limiting rods (31); S2: The mounting platform (3), the welding gun (4), the active brazing material (36), and other structures are moved downward by retracting the hydraulic rod (11) until the first gear (15) is engaged with the rack (12), and the weldment (2) and the active brazing material (36) are heated by the welding gun (4) to perform welding. Subsequently, the motor (5) drives the screw (6) to rotate, thereby driving the hydraulic rod (11), the mounting platform (3), the welding gun (4), the active brazing material (36), and other structures above the nut (7) to move, thereby maintaining continuous welding of the weldment (2); S3: When the mounting table (3) moves, the long rod (27) and the contact block (28) are driven to move together, and when the scraper (29) on the contact block (28) moves on the surface of the weldment (2), the impurities remaining on the surface of the weldment (2) can be scraped off, and the wiping pad (30) provided on the other side of the contact block (28) can wipe off the fine impurities scattered on the surface of the weldment (2), so as to clean the surface of the weldment (2) during mobile welding and prevent the impurities on the surface of the weldment (2) from affecting the welding; S4: When the mounting platform (3) moves, the first gear (15) can be rotated on one side of the rack (12). When the first gear (15) rotates, it drives the transmission rod (14), the first bevel gear (16), the second bevel gear (17), the first rotating rod and the first roller (18) to rotate, and the second roller (22) is rotated through the second gear (20) and the third gear (21). The first roller (18) cooperates with the second roller (22) to promote the active solder (36) to move a short distance downward, so that the supply of the active solder (36) can be maintained during welding.

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