Automobile intercooler core brazing device

Abstract

The present invention discloses a brazing device for an automobile intercooler core, and relates to the technical field of automobile parts processing. The present invention comprises a vacuum brazing furnace and a processing tunnel, wherein two travel tracks are fixedly installed inside the processing tunnel, and a transport vehicle is placed on the two travel tracks. A steering motor is fixedly installed at the bottom of the transport vehicle, and the output shaft of the steering motor extends to the top of the transport vehicle and is fixedly installed with a steering shaft, and a steering plate is fixedly installed at the top of the steering shaft. The present invention sets a spray mechanism so that the flux is evenly sprayed on the pre-assembled core through multiple diversion nozzles on both sides. As the transport vehicle moves, each heat dissipation duct, side panel, main board, and internal fin can all contact the flux, thereby improving the wettability of the subsequent solder rack after melting, and cleaning each component, thereby increasing the uniformity of the flux spraying on the pre-assembled core, and at the same time accelerating the speed of spraying the flux, reducing the waiting time before brazing.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to an automobile intercooler core brazing device. Background Art

[0002] The central cooler is a radiator located between the engine and the turbocharger, also known as the intercooler. It is generally equipped in turbocharged vehicles and is responsible for cooling the high-temperature air after supercharging, reducing the intake temperature, and improving the engine's charging efficiency and power performance. During the turbocharging process, the air will be compressed at a high ratio and generate a large amount of heat, resulting in a decrease in the air expansion density. At the same time, the engine will also be damaged due to excessive temperature. Common air-cooled intercoolers are generally equipped at the front of the car, so that the high-temperature and high-pressure air output by the turbocharger is dispersed into many small pipes, and outside the pipes there is a normal-temperature, high-speed airflow generated by the car's driving, so that the air is cooled before entering the cylinder.

[0003] The existing air-cooled intercooler core generally includes a main board, air ducts, heat dissipation fins, side panels, etc. When welding the core, a brazing device is often used due to the large number of core components and fine size. The current intercooler core brazing equipment is generally a vacuum brazing furnace. After the solder is assembled on the core and the flux is sprayed, the cores are stacked and sent to the brazing furnace for welding. However, this welding method will cause the solder and the core to be assembled unstable before welding. The stacked cores need to be bundled and fixed separately before being sent to the brazing furnace, which will prolong the waiting time before core brazing and cause excessive loss of flux on the core, affecting the welding effect. Therefore, a car intercooler core brazing device is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that the current intercooler core brazing method will result in unstable assembly of solder and core before welding, and the stacked cores need to be bundled and fixed separately before being sent to the brazing furnace, which will prolong the waiting time before core brazing, resulting in excessive loss of flux on the core and affecting the welding effect. The present invention provides an automobile intercooler core brazing device.

[0005] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0006] A car intercooler core brazing device comprises a vacuum brazing furnace and a processing tunnel, wherein two travel tracks are fixedly installed inside the processing tunnel, transport carts are placed on the two travel tracks, a steering motor is fixedly installed at the bottom of the transport cart, the output shaft of the steering motor extends to the top of the transport cart and is fixedly installed with a steering shaft, a steering plate is fixedly installed at the top of the steering shaft, two clamping slides and two clamping electric push rods are fixedly installed on the top of the steering plate, a clamping slide is slidably installed on the top of each of the clamping slides, the telescopic ends of the two clamping electric push rods are respectively fixedly connected to the two clamping slides, a deflection motor is fixedly installed on the top of each of the clamping slides, a clamping plate is fixedly installed on the output shaft of the deflection motor, a preassembled core is placed between the two clamping plates, the preassembled core comprises two main boards, a plurality of heat dissipation ducts and two side panels are inserted between the two main boards, the heat dissipation ducts are each located between the two side panels, two soldering racks are provided on one side of each of the main boards, and four soldering racks are respectively located at both ends of the plurality of heat dissipation ducts.

[0007] Furthermore, a spray mechanism for spraying flux is provided inside the processing tunnel, and the spray mechanism includes a U-shaped diverter pipe provided inside the processing tunnel, and the U-shaped diverter pipe corresponds to the position of the preassembled core body. A welding delivery pipe is fixedly installed on the outer side wall of the processing tunnel, and one end of the welding delivery pipe extends to the interior of the processing tunnel and is connected to the U-shaped diverter pipe. A plurality of evenly distributed diverter nozzles are fixedly installed on one side where the two bottom ends of the U-shaped diverter pipe are close to each other, and a liquid storage tank is provided inside the travel track, and the liquid storage tank is located between the two travel tracks and at the bottom of the U-shaped diverter pipe. Cleaning nozzles are fixedly installed on both bottom ends of the U-shaped diverter pipe, and two symmetrically arranged baffle plates are fixedly installed on the top of the transport vehicle, and the two cleaning nozzles are inclined and respectively face the two baffle plates.

[0008] Furthermore, a disassembly and assembly mechanism for disassembling and assembling the solder rack is provided inside the processing tunnel, and the disassembly and assembly mechanism includes a disassembly and assembly box fixedly installed inside the processing tunnel, and a plurality of linear guide rails are fixedly installed inside the disassembly and assembly box, and the plurality of linear guide rails are respectively located on both sides of the interior of the disassembly and assembly box, and the tops of the linear guide rails are driven to install electric sliders, and the tops of the plurality of electric sliders located on the same side are fixedly installed with the same support plate, and the tops of the support plates are fixedly installed with two vertical frames, and the side walls of the vertical frames are fixedly installed with two symmetrically arranged horizontal frames, and the ends of the plurality of horizontal frames located on both sides that are close to each other are fixedly installed with electric slides, and one side of the electric slide Both are driven and installed with micro-grips adapted to the soldering rack, and the two micro-grips located on the same vertical rack are symmetrically arranged with each other, and a hot melt fixing unit for hot-melt fixing of the soldering rack is provided on the top of the disassembly and assembly box, and the hot melt fixing unit includes a accommodating slot fixedly installed on the top of the disassembly and assembly box, and a accommodating electric push rod is fixedly installed on the top of the accommodating slot, and the telescopic end of the accommodating electric push rod extends to the interior of the accommodating slot and the disassembly and assembly box and is fixedly installed with an electric heating clamp, and an electric heating machine is fixedly installed on the top of the disassembly and assembly box, and the electric heating clamp is electrically connected to the electric heating machine, and an H-shaped heating rack is clamped on the electric heating clamp, and the H-shaped heating rack corresponds to the position of the pre-assembled core.

[0009] Furthermore, a loading structure for loading and loading the pre-assembled core is provided between the vacuum brazing furnace and the processing tunnel, and the loading structure includes a loading platform provided between the vacuum brazing furnace and the processing tunnel, and a plurality of horizontally arranged long conveying rollers and short conveying rollers are rotatably installed on the top of the loading platform, and the same loading grid is placed on the plurality of long conveying rollers and the short conveying rollers, and an electric lifting platform is provided inside the loading platform, and the telescopic end of the electric lifting platform extends to the interior of the loading grid, and the plurality of short conveying rollers are respectively distributed on both sides of the electric lifting platform.

[0010] Furthermore, a cooling fan is fixedly installed inside the processing tunnel, and the cooling fan is located on a side of the loading platform away from the vacuum brazing furnace. The position of the cooling fan corresponds to the position of the pre-assembled core.

[0011] The beneficial effects of the present invention are as follows:

[0012] 1. The present invention provides a spray mechanism so that the flux is evenly sprayed on the pre-assembled core through multiple diversion nozzles on both sides. As the transport vehicle moves, each heat dissipation duct, side panel, main board, and internal fin can all be exposed to the flux, thereby improving the wettability of the subsequent solder rack after melting and cleaning each component. This increases the uniformity of flux spraying on the pre-assembled core, while accelerating the speed of flux spraying and reducing the waiting time before brazing.

[0013] 2. The present invention provides a disassembly and assembly mechanism so that the pre-assembly and assembly mechanism can realize automatic disassembly and assembly of the solder rack, facilitate secondary spraying of the flux, reduce spraying dead angles, and increase the retention time of the flux on the pre-assembled core. During the disassembly and assembly process of the solder rack, the pre-assembled core is always clamped by the clamping plates on both sides, thus avoiding the problem of the traditional pre-assembled core easily falling apart during transportation;

[0014] 3. The present invention provides a hot melt fixing unit, so that during the secondary spraying process, the upper and lower ends of the solder frame are heated and melted and reassembled. The two ends of the solder frame are bonded to each other to form a complete solder frame, which greatly improves the tightness of the solder frame assembly and prevents the pre-assembled core from falling apart during subsequent loading and feeding. At the same time, the gaps between the secondary spraying of flux are used for hot melt fixing, further reducing the waiting time before brazing.

[0015] 4. The present invention sets a feeding structure so that during the loading and feeding process, the telescopic end of the electric lifting platform will be lifted and extended to the inside of the feeding grid to limit the feeding grid. After the pre-assembled core is placed in the feeding grid, it will be supported by the electric lifting platform, and then the electric lifting platform will be lowered a unit distance so that the height of the electric lifting platform is kept consistent each time, thereby facilitating the loading of the staff. When the feeding grid is fully loaded, the telescopic end of the electric lifting platform completely withdraws from the feeding grid, so that the feeding grid can be transported along the long conveyor roller and the short conveyor roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the treatment tunnel of the present invention;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the transport vehicle of the present invention from a first perspective;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the transport vehicle of the present invention from a second perspective;

[0020] Figure 5 This is a schematic diagram of the three-dimensional structure of the intercooler core of the present invention;

[0021] Figure 6This is a schematic diagram of the three-dimensional structure of the solder rack of the present invention;

[0022] Figure 7 It is a schematic diagram of the three-dimensional structure of the spray mechanism of the present invention;

[0023] Figure 8 This is a schematic diagram of the three-dimensional structure of the disassembly and assembly mechanism of the present invention;

[0024] Figure 9 This is a schematic diagram of the three-dimensional structure of the hot melt fixing unit of the present invention;

[0025] Figure 10 It is a schematic diagram of the three-dimensional structure of the feeding mechanism of the present invention;

[0026] Figure 11 This is a schematic diagram of the three-dimensional structure of the feeding grid of the present invention;

[0027] Figure 1: 1. Vacuum brazing furnace; 2. Processing tunnel; 3. Travel track; 4. Transport vehicle; 5. Steering motor; 6. Steering shaft; 7. Steering plate; 8. Clamping slide rail; 9. Clamping slide; 10. Clamping electric push rod; 11. Deflection motor; 12. Clamping plate; 13. Pre-assembled core; 1301. Main board; 1302. Cooling duct; 1303. Side panel; 14. Solder rack; 15. Welding conveying pipe; 16. U-shaped diverter pipe; 17. Diverter nozzle; 18 , cleaning nozzle; 19. baffle plate; 20. disassembly and assembly box; 21. linear guide rail; 22. electric slider; 23. support plate; 24. vertical frame; 25. horizontal frame; 26. electric slide rail; 27. micro clamp; 28. receiving slot; 29. ​​storage electric push rod; 30. electric heating clamp; 31. electric heating machine; 32. H-shaped heating rack; 33. loading table; 34. long conveyor roller; 35. short conveyor roller; 36. loading grid; 37. electric lifting platform; 38. cooling fan. DETAILED DESCRIPTION

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0030] It should be noted that similar reference numerals and letters denote similar items in the following figures. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, terms such as "first", "second", etc. are only used for descriptive distinction and should not be construed as indicating or implying relative importance.

[0031] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the figures, or the orientation or positional relationship in which the invention product is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0032] As Figures 1 to 11 shown, an automobile intercooler core brazing device includes a vacuum brazing furnace 1 and a processing tunnel 2. As Figure 1 、 Figure 2 shown, two traveling tracks 3 are fixedly installed inside the processing tunnel 2, and a transport vehicle 4 is placed on the two traveling tracks 3. As Figure 3 、 Figure 4 shown, a steering motor 5 is fixedly installed at the bottom of the transport vehicle 4, the output shaft of the steering motor 5 extends to the top of the transport vehicle 4 and is fixedly installed with a steering shaft 6, a steering plate 7 is fixedly installed at the top of the steering shaft 6, two clamping slide rails 8 and two clamping electric push rods 10 are fixedly installed at the top of the steering plate 7, clamping sliders 9 are slidably installed at the top of the clamping slide rails 8, the telescopic ends of the two clamping electric push rods 10 are respectively fixedly connected to the two clamping sliders 9, deflection motors 11 are fixedly installed at the tops of the clamping sliders 9, clamping plates 12 are fixedly installed on the output shafts of the deflection motors 11, and a pre-assembled core 13 is placed between the two clamping plates 12. As Figure 5 shown, the pre-assembled core 13 includes two main boards 1301, a plurality of heat dissipation air ducts 1302 and two side plates 1303 are inserted between the two main boards 1301, the heat dissipation air ducts 1302 are all located between the two side plates 1303, two solder racks 14 are provided on one side of each main board 1301, and the four solder racks 14 are respectively located at both ends of the plurality of heat dissipation air ducts 1302.

[0033] In this embodiment, the plurality of heat dissipation air ducts 1302 and the two side plates 1303 are tightly inserted into the main boards 1301 on both sides by interference fit. The material of the solder rack 14 is an alloy with a melting point lower than that of the base material of the pre-assembled core 13. After the pre-assembly of the pre-assembled core 13, the four solder racks 14 are also pre-assembled with the pre-assembled core 13 by interference fit insertion. As Figure 4 shown, the transport vehicle 4 is in an "I" shape. As Figure 6As shown, the solder rack 14 is a wave-shaped structure that matches the shape of a large number of heat dissipation ducts 1302. The lengths of the upper and lower ends of the solder rack 14 are slightly larger than the width of the side panels 1303 to reduce the impact of melting loss when the solder rack 14 is fixed by hot melt.

[0034] More specifically, when the automobile pre-assembled core 13 brazing device is in use, the transport vehicle 4 moves to the entrance of the processing tunnel 2 away from the vacuum brazing furnace 1, the steering motor 5 drives the steering plate 7 to rotate to a direction perpendicular to the travel direction of the transport vehicle 4, and the staff inserts the pre-assembled core 13 pre-plugged and equipped with the solder rack 14 between the two clamping plates 12 from top to bottom, the steering motor 5 drives the steering plate 7 to reset, and the transport vehicle 4 drives the pre-assembled core 13 to move along the travel track 3 toward the inside of the processing tunnel 2. When the transport vehicle 4 moves to the spray mechanism, it stops, and the spray mechanism sprays flux on the surrounding side of the pre-assembled core 13, so that the main board 1301, the side plate 1303, and the heat dissipation air duct 1302 can be soaked with flux. Then the transport vehicle 4 The preassembled core 13 is sent to the inside of the disassembly and assembly box 20 and stopped. The disassembly and assembly structures on both sides remove the solder rack 14 from the preassembled core 13. The transport vehicle 4 carries the preassembled core 13 back to the spray mechanism for secondary spraying, so that the joints between the main board 1301 and the heat dissipation duct 1302 and the side panel 1303 originally covered by the solder rack 14 are also sprayed with flux. Then the preassembled core 13 is sent to the inside of the disassembly and assembly box 20 again and reassembled with the solder rack 14 to complete the pretreatment. Finally, it is sent to the loading mechanism for batch loading, and then collectively sent to the vacuum brazing furnace 1 for heating and brazing, so that the two groups of solder racks 14 melt and penetrate into the joints between the main board 1301 and the heat dissipation duct 1302 and the side panel 1303 to complete the brazing.

[0035] The interior of the processing tunnel 2 is provided with a spraying mechanism for spraying flux, such as Figure 2 、 Figure 7 As shown, specifically, the spray mechanism includes a U-shaped diverter pipe 16 arranged inside the processing tunnel 2, the U-shaped diverter pipe 16 corresponds to the position of the pre-assembled core 13, and a welding delivery pipe 15 is fixedly installed on the outer side wall of the processing tunnel 2. One end of the welding delivery pipe 15 extends to the interior of the processing tunnel 2 and is connected to the U-shaped diverter pipe 16. A plurality of evenly distributed diverter nozzles 17 are fixedly installed on one side where the two bottom ends of the U-shaped diverter pipe 16 are close to each other.

[0036] In this embodiment, one end of the welding delivery pipe 15 is connected to the flux storage tank, and the welding is delivered through an infusion pump.

[0037] More specifically, by setting up a spray mechanism, when the preassembled core 13 is transported to the inside of the U-shaped diverter pipe 16, the welding delivery pipe 15 delivers flux to the inside of the U-shaped diverter pipe 16, and is evenly sprayed on the preassembled core 13 through multiple diverter nozzles 17 on both sides. As the transport vehicle 4 moves, each heat dissipation duct 1302, side panel 1303, main board 1301, and internal fins can all contact the flux, thereby improving the wettability of the subsequent solder rack 14 after melting, and cleaning the various components of the preassembled core 13, increasing the uniformity of flux spraying in the preassembled core 13, and at the same time accelerating the speed of spraying flux, reducing the waiting time before brazing.

[0038] like Figure 2 、 Figure 7 As shown, specifically, a liquid reservoir is provided inside the travel track 3, and the liquid reservoir is located between the two travel tracks 3 and at the bottom of the U-shaped shunt pipe 16. The two bottom ends of the U-shaped shunt pipe 16 are fixedly mounted with cleaning nozzles 18, as shown in FIG. Figure 4 As shown, two symmetrically arranged baffle plates 19 are fixedly mounted on the top of the transport vehicle 4 , and the two cleaning nozzles 18 are both inclined and face the two baffle plates 19 respectively.

[0039] More specifically, by setting the baffle plate 19, the deflection motor 11 drives the two clamping plates 12 to drive the pre-assembled core 13 to deflect left and right, so that the excess flux and the flux splashed during spraying will be blocked by the baffle plates 19 on both sides, and flow into the liquid storage tank through the gap between the transport vehicle 4 and the baffle plate 19, preventing the flux from being splashed into the interior of the processing tunnel 2 and the travel track 3. At the same time, a small amount of flux will be sprayed onto the baffle plate 19 through the cleaning nozzle 18 at the bottom end of the U-shaped diverter pipe 16 to clean the baffle plate 19 and the inner wall of the liquid storage tank.

[0040] The interior of the processing tunnel 2 is provided with a disassembly mechanism for disassembling the solder rack 14, such as Figure 2 、 Figure 8 As shown, specifically, the disassembly and assembly mechanism includes a disassembly and assembly box 20 fixedly installed inside the processing tunnel 2, and a plurality of linear guide rails 21 are fixedly installed inside the disassembly and assembly box 20. The plurality of linear guide rails 21 are respectively located on both sides of the interior of the disassembly and assembly box 20, and the tops of the linear guide rails 21 are driven to be installed with electric sliders 22. The tops of the plurality of electric sliders 22 located on the same side are fixedly installed with the same support plate 23, and the tops of the support plates 23 are fixedly installed with two vertical frames 24. Two symmetrically arranged horizontal frames 25 are fixedly installed on the side walls of the vertical frames 24. The ends of the plurality of horizontal frames 25 located on both sides that are close to each other are fixedly installed with electric slide rails 26, and one side of the electric slide rails 26 is driven to be installed with micro-grips 27 that are compatible with the solder rack 14, and the two micro-grips 27 located on the same vertical frame 24 are symmetrically arranged.

[0041] More specifically, by setting up a disassembly and assembly mechanism, after the pre-assembled core 13 is sent to the inside of the disassembly and assembly box 20, the electric slides 22 on both sides move along the linear guide rails 21, and drive the four sets of micro-grips 27 to move toward the pre-assembled core 13 through the vertical frame 24 and the horizontal frame 25. Then, each electric slide 26 drives the micro-grips 27 to move toward the solder rack 14 and clamp the four solder racks 14 up and down respectively. Then, the electric slides 22 are reset, and the four solder racks 14 are removed from the pre-assembled core 13. At this time, the transport vehicle 4 The preassembled core 13 is driven to retreat for secondary flux spraying. After the spraying is completed, the disassembly and assembly structure reassembles the solder rack 14 on the preassembled core 13, thereby realizing automatic disassembly and assembly of the solder rack 14, facilitating secondary spraying of the flux, thereby reducing spraying dead angles and increasing the residence time of the flux on the preassembled core 13. During the disassembly and assembly process of the solder rack 14, the preassembled core 13 is always clamped by the clamping plates 12 on both sides, thereby avoiding the problem of the traditional preassembled core 13 easily falling apart during transportation.

[0042] The top of the disassembly and assembly box 20 is provided with a hot melt fixing unit for hot melt fixing the solder rack 14. Figure 2 、 Figure 9 As shown, specifically, the hot melt fixing unit includes a receiving groove 28 fixedly installed on the top of the disassembly and assembly box 20, and a receiving electric push rod 29 is fixedly installed on the top of the receiving groove 28. The telescopic end of the receiving electric push rod 29 extends to the interior of the receiving groove 28 and the disassembly and assembly box 20 and is fixedly installed with an electric heating clamp 30. An electric heating machine 31 is fixedly installed on the top of the disassembly and assembly box 20. The electric heating clamp 30 is electrically connected to the electric heating machine 31. An H-shaped heating rack 32 is clamped on the electric heating clamp 30, and the H-shaped heating rack 32 corresponds to the position of the pre-assembled core 13.

[0043] More specifically, by setting a hot melt fixing unit, during the secondary spraying process of the pre-assembled core 13, the receiving electric push rod 29 will drive the electric heating clamp 30 inside the receiving groove 28 to drive the H-shaped heating rack 32 to move down until it is located between the solder racks 14 on both sides. At this time, the H-shaped heating rack 32 is kept at a high temperature under the heating of the electric heating machine 31 and the electric heating clamp 30. The disassembly and assembly mechanisms on both sides send the solder racks 14 to the H-shaped heating rack 32, so that the upper and lower ends of the four solder racks 14 are in contact with the H-shaped heating rack 32 and are slightly heated. After slight melting, the solder rack 14 and the H-shaped heating rack 32 are reset in sequence, and the solder rack 14 is reassembled on the pre-assembled core 13. At this time, the two ends of the two sets of solder racks 14 are bonded to each other, so that the solder racks 14 on both sides are combined into a complete solder frame, which greatly improves the tightness of the assembly of the solder rack 14 on the pre-assembled core 13, thereby further preventing the pre-assembled core 13 from falling apart during subsequent loading and feeding. At the same time, the gap between the secondary spraying of flux is used for hot melt fixing, which further reduces the waiting time before brazing.

[0044] A loading structure for loading the pre-assembled core 13 is provided between the vacuum brazing furnace 1 and the processing tunnel 2. Figure 2 、 Figure 10 As shown, specifically, the loading structure includes a loading platform 33 arranged between the vacuum brazing furnace 1 and the processing tunnel 2, and a plurality of horizontally arranged long conveying rollers 34 and short conveying rollers 35 are rotatably installed on the top of the loading platform 33, and the same loading grid 36 is placed on the plurality of long conveying rollers 34 and short conveying rollers 35.

[0045] In this embodiment, the long conveying roller 34, the short conveying roller 35 and the loading platform 33 form an unpowered conveyor. The long conveying roller 34 and the short conveying roller 35 support the loading grid 36, so that the loading grid 36 can move toward the vacuum brazing furnace 1 as the long conveying roller 34 and the short conveying roller 35 roll under human push or pull for loading.

[0046] More specifically, by setting up a loading structure, after the pre-processing of the pre-assembled core 13 is completed, the transport vehicle 4 moves to the exit of the processing tunnel 2, and the staff extracts the pre-assembled core 13 from the clamping plate 12 and places it in the loading grid 36. When the loading grid 36 is fully loaded, the insulating door and the airtight door of the vacuum brazing furnace 1 are opened, and the loading grid 36 is pushed into the vacuum brazing furnace 1 along the long conveyor roller 34 and the short conveyor roller 35 for brazing.

[0047] like Figure 10 As shown, specifically, an electric lifting platform 37 is provided inside the loading platform 33 , the telescopic end of the electric lifting platform 37 extends to the inside of the loading grid 36 , and a plurality of short conveying rollers 35 are respectively distributed on both sides of the electric lifting platform 37 .

[0048] In this embodiment, if Figure 11 As shown, the bottom of the loading grid 36 is a plate-like structure for supporting the preassembled cores 13 stacked inside. A clearance hole is provided at the bottom of the loading grid 36 for the telescopic end of the electric lifting platform 37 to pass through, so that the electric lifting platform 37 can extend into the loading grid 36 to support the stacked preassembled cores 13.

[0049] More specifically, by setting up an electric lifting platform 37, during the loading and feeding process, the telescopic end of the electric lifting platform 37 will be lifted and extended to the inside of the feeding grid 36 to limit the feeding grid 36. After the pre-assembled core 13 is placed in the feeding grid 36, it will be supported by the electric lifting platform 37, and then the electric lifting platform 37 will be lowered a unit distance so that the height of the electric lifting platform 37 is kept consistent each time, thereby facilitating the loading of the staff. When the feeding grid 36 is fully loaded, the telescopic end of the electric lifting platform 37 completely withdraws from the feeding grid 36, so that the feeding grid 36 can be transported along the long conveyor roller 34 and the short conveyor roller 35.

[0050] like Figure 2 As shown, specifically, a cooling fan 38 is fixedly installed inside the processing tunnel 2. The cooling fan 38 is located on the side of the loading platform 33 away from the vacuum brazing furnace 1. The position of the cooling fan 38 corresponds to the position of the pre-assembled core 13.

[0051] More specifically, by providing a cooling fan 38, the preassembled core 13 after pretreatment will pass through the cooling fan 38, thereby cooling the hot melt bonding part of the solder rack 14, accelerating the solidification of the bonding part of the solder rack 14, and preventing subsequent workers from being burned during loading.

[0052] In summary: flux spraying: the transport vehicle 4 moves to the entrance of the processing tunnel 2 away from the vacuum brazing furnace 1, the steering motor 5 drives the steering plate 7 to rotate perpendicular to the travel direction of the transport vehicle 4, and the staff inserts the pre-assembled core 13 pre-plugged and equipped with the solder rack 14 between the two clamping plates 12 from top to bottom, and the steering motor 5 drives the steering plate 7 to reset. The transport vehicle 4 drives the pre-assembled core 13 to move along the travel track 3 to the inside of the processing tunnel 2. When the transport vehicle 4 moves to the spray mechanism, it stops, and the welding delivery pipe 15 delivers flux to the inside of the U-shaped diverter pipe 16, and is evenly sprayed on the pre-assembled core 13 through multiple diverter nozzles 17 on both sides. As the transport vehicle 4 moves, each heat dissipation duct 1302, side plate 1303, main board 1301, and internal fins can all contact the flux, thereby improving the wettability of the subsequent solder rack 14 after melting, and cleaning the various components of the pre-assembled core 13;

[0053] Secondary spraying: After that, the transport vehicle 4 delivers the pre-assembled core 13 to the inside of the disassembly box 20 and stops. The electric sliders 22 on both sides move along the linear guide rails 21, and drive the four groups of micro-grips 27 to move toward the pre-assembled core 13 through the vertical frame 24 and the horizontal frame 25. Then, each electric slide rail 26 drives the micro-grips 27 to move toward the solder rack 14 and clamp the four solder racks 14 up and down respectively. Then, the electric slider 22 resets and removes the four solder racks 14 from the pre-assembled core 13. At this time, the transport vehicle 4 drives the pre-assembled core 13 back for a second spraying of flux, so that the joints between the main board 1301, the heat dissipation duct 1302, and the side panel 1303 originally covered by the solder rack 14 are also sprayed with flux. After the spraying is completed, the disassembly structure reassembles the solder rack 14 on the pre-assembled core 13;

[0054] Hot melt fixing: During the secondary spraying process of the pre-assembled core 13, the receiving electric push rod 29 will drive the electric heating clamp 30 inside the accommodating groove 28 to drive the H-shaped heating frame 32 to move downward until it is located between the soldering racks 14 on both sides. At this time, the H-shaped heating rack 32 is kept at a high temperature under the heating of the electric heating machine 31 and the electric heating clamp 30. The disassembly and assembly mechanisms on both sides send the soldering racks 14 to the H-shaped heating rack 32, so that the upper and lower ends of the four soldering racks 14 are in contact with the H-shaped heating rack 32 and are slightly melted by the heat. After that, the soldering racks 14 and the H-shaped heating rack 32 are reset in turn, and the soldering racks 14 are reassembled on the pre-assembled core 13. At this time, the two ends of the two groups of soldering racks 14 are bonded to each other, so that the soldering racks 14 on both sides are combined into a complete soldering frame;

[0055] Loading and brazing: After the pretreatment of the preassembled core 13 is completed, the transport vehicle 4 moves to the exit of the processing tunnel 2, and the staff pulls the preassembled core 13 out of the clamping plate 12 and places it in the loading grid 36. When the loading grid 36 is fully loaded, the insulating door and the airtight door of the vacuum brazing furnace 1 are opened, and the loading grid 36 is pushed into the vacuum brazing furnace 1 along the long conveyor roller 34 and the short conveyor roller 35 for brazing, so that the two sets of solder racks 14 melt and penetrate into the joints between the main board 1301 and the heat dissipation air duct 1302 and the side panel 1303 to complete the brazing.

[0056] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A car intercooler core brazing device, characterized in that: The invention comprises a vacuum brazing furnace (1) and a processing tunnel (2), wherein two travel rails (3) are fixedly installed inside the processing tunnel (2), a transport vehicle (4) is placed on the two travel rails (3), a steering motor (5) is fixedly installed at the bottom of the transport vehicle (4), an output shaft of the steering motor (5) extends to the top of the transport vehicle (4) and is fixedly installed with a steering shaft (6), a steering plate (7) is fixedly installed at the top of the steering shaft (6), two clamping slide rails (8) and two clamping electric push rods (10) are fixedly installed at the top of the steering plate (7), a clamping slide (9) is slidably installed at the top of each clamping slide rail (8), the telescopic ends of the two clamping electric push rods (10) are fixedly connected to the two clamping slides (9), a deflection motor (11) is fixedly installed at the top of each clamping slide (9), the output shaft of each deflection motor (11) is fixedly installed with a clamping plate (12), and a pre-assembled core (13) is placed between the two clamping plates (12); The pre-assembled core (13) comprises two main boards (1301), a plurality of heat dissipation ducts (1302) and two side panels (1303) are plugged between the two main boards (1301), the heat dissipation ducts (1302) are located between the two side panels (1303), two solder racks (14) are provided on one side of the main board (1301), and the four solder racks (14) are respectively located at both ends of the plurality of heat dissipation ducts (1302); A spray mechanism for spraying flux is provided inside the processing tunnel (2), a disassembly mechanism for disassembling and assembling the solder rack (14) is provided inside the processing tunnel (2), and a loading structure for loading and loading the pre-assembled core (13) is provided between the vacuum brazing furnace (1) and the processing tunnel (2).

2. The automotive intercooler core brazing device according to claim 1, characterized in that: The spray mechanism comprises a U-shaped diverter pipe (16) arranged inside the processing tunnel (2), the U-shaped diverter pipe (16) corresponding to the position of the pre-assembled core (13), a welded delivery pipe (15) fixedly mounted on the outer side wall of the processing tunnel (2), one end of the welded delivery pipe (15) extending into the interior of the processing tunnel (2) and communicating with the U-shaped diverter pipe (16), and a plurality of evenly distributed diverter nozzles (17) fixedly mounted on one side of the two bottom ends of the U-shaped diverter pipe (16) close to each other.

3. The automotive intercooler core brazing device according to claim 2, characterized in that: A liquid storage tank is provided inside the travel track (3), and the liquid storage tank is located between the two travel tracks (3) and at the bottom of the U-shaped diverter pipe (16). Cleaning nozzles (18) are fixedly installed at both bottom ends of the U-shaped diverter pipe (16). Two symmetrically arranged baffle plates (19) are fixedly installed on the top of the transport vehicle (4). The two cleaning nozzles (18) are both inclined and face the two baffle plates (19) respectively.

4. The automotive intercooler core brazing device according to claim 1, characterized in that: The assembly and disassembly mechanism comprises an assembly and disassembly box (20) fixedly mounted inside the processing tunnel (2), a plurality of linear guide rails (21) fixedly mounted inside the assembly and disassembly box (20), the plurality of linear guide rails (21) being respectively located on both sides of the interior of the assembly and disassembly box (20), the tops of the linear guide rails (21) being driven and mounted with electric sliders (22), the tops of the plurality of electric sliders (22) located on the same side being fixedly mounted with a same support plate (23), the tops of the support plates (23) being fixedly mounted with two vertical frames (24), Two symmetrically arranged horizontal frames (25) are fixedly mounted on the side walls of the vertical frame (24); an electric slide rail (26) is fixedly mounted on one end of the horizontal frames (25) on both sides that are close to each other; a micro-grip (27) adapted to the soldering frame (14) is driven and mounted on one side of the electric slide rail (26); the two micro-grips (27) on the same vertical frame (24) are symmetrically arranged; and a hot-melt fixing unit for hot-melt fixing the soldering frame (14) is provided on the top of the disassembly and assembly box (20).

5. The automotive intercooler core brazing device according to claim 4, characterized in that: The hot melt fixing unit includes a receiving groove (28) fixedly mounted on the top of the assembly and disassembly box (20), a receiving electric push rod (29) fixedly mounted on the top of the receiving groove (28), a telescopic end of the receiving electric push rod (29) extending to the inside of the receiving groove (28) and the assembly and disassembly box (20) and fixedly mounted with an electric heating clamp (30), an electric heating machine (31) fixedly mounted on the top of the assembly and disassembly box (20), the electric heating clamp (30) being electrically connected to the electric heating machine (31), an H-shaped heating rack (32) being clamped on the electric heating clamp (30), and the H-shaped heating rack (32) corresponding to the position of the pre-assembled core (13).

6. The automotive intercooler core brazing device according to claim 1, characterized in that: The feeding structure comprises a feeding platform (33) arranged between the vacuum brazing furnace (1) and the processing tunnel (2), a plurality of horizontally arranged long conveying rollers (34) and short conveying rollers (35) are rotatably mounted on the top of the feeding platform (33), and a same feeding grid (36) is placed on the plurality of long conveying rollers (34) and the short conveying rollers (35).

7. The automotive intercooler core brazing device according to claim 6, characterized in that: An electric lifting platform (37) is provided inside the loading platform (33), and the telescopic end of the electric lifting platform (37) extends to the inside of the loading grid (36), and the plurality of short conveying rollers (35) are respectively distributed on both sides of the electric lifting platform (37).

8. The automotive intercooler core brazing device according to claim 6, characterized in that: A cooling fan (38) is fixedly installed inside the processing tunnel (2). The cooling fan (38) is located on a side of the loading platform (33) facing away from the vacuum brazing furnace (1). The position of the cooling fan (38) corresponds to the position of the pre-assembled core (13).

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