Welding device for new energy automobile manufacturing
Through the combination of buffer springs, extrusion components, knocking mechanisms and cooling mechanisms in the welding equipment used in new energy vehicle manufacturing, the problem of the inability to generate extrusion stress at the welding site is solved, the stability and quality of the weld are improved, the strength and fatigue resistance of the weld are enhanced, and weld defects are avoided.
Patent Information
- Application Number
- CN202510586463.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2025-09-12
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the existing welding process of new energy vehicle pipes, extrusion stress cannot be generated at the welding site, resulting in a decline in welding quality.
A welding device for new energy vehicle manufacturing is used. By setting a buffer spring, an extrusion component, a knocking mechanism and a cooling mechanism, the extrusion, knocking and slow cooling processes of the pipe are realized, thereby enhancing welding stability, refining grains and avoiding weld defects.
Improve the stability and quality of welds, reduce stress concentration, enhance the strength and fatigue resistance of welds, avoid weld defects, and ensure uniformity, density and purity of welds.
Smart Images
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Abstract
Description
Technical Field
[0001] The present invention relates to a field of new energy vehicles, in particular to a welding device for manufacturing new energy vehicles. Background Art
[0002] New energy vehicles refer to vehicles that use unconventional automotive fuels as their power source (or use conventional automotive fuels and adopt new on-board power devices). During the production and manufacturing process of new energy vehicles, special welding equipment is required to weld their components.
[0003] New energy vehicles require multiple pipes during production. However, during the production process, two pipes need to be welded together. In the existing process of welding two pipes, they are all butted together before welding. Since the two pipes are simply butted together, it is impossible to generate extrusion stress at the butt joint after butting the two pipes, thereby reducing the quality of the pipes after welding. To this end, we provide a welding device for new energy vehicle manufacturing to solve the above problem. Summary of the Invention
[0004] The purpose of the present invention is to provide a welding device for manufacturing new energy vehicles in order to solve the problem that the welding part of two pipes cannot generate extrusion stress during the welding process.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A welding device for manufacturing new energy vehicles, comprising a base plate: the top of the base plate is fixedly connected to a welding machine base, the top of the welding machine base is fixedly connected to a welding robot arm, the top of the base plate near the welding machine base is fixedly connected to a welding table, the top of the welding table is provided with a mounting mechanism, the top of the welding table is fixedly connected to an operating panel, the top of the middle part of the welding table is fixedly connected to a mounting plate, and the top of the mounting plate is respectively provided with a knocking mechanism and a cooling mechanism.
[0006] As a further solution of the present invention: the mounting mechanism includes a mounting support plate fixedly connected to the top of the welding table, one side of the mounting support plate is fixedly connected to the motor mounting seat, the top of the motor mounting seat is fixedly connected to the driving motor through a bolt assembly, the output end of the driving motor is fixedly connected to a driving rotating rod, one end of the driving rotating rod close to the driving motor passes through the mounting support plate and is rotatably connected to the mounting support plate, the other end of the driving rotating rod is fixedly connected to a rotating disk, the top of the mounting disk is fixedly connected to the supporting rotating seat, and the rotating disk is rotatably connected to the inner side of the supporting rotating seat, the top of the mounting disk is fixedly connected to the connecting support seat, the inner side of the connecting support seat is rotatably connected to the connecting rotating rod, one side of the connecting rotating rod and one side of the rotating disk are both provided with a clamping disk, and an extrusion assembly is provided on one side of the connecting rotating rod and between the rotating disk and the two clamping disks.
[0007] As a further solution of the present invention: the extrusion assembly includes an electric push rod fixedly connected to one end of the connecting rotating rod, the output end of the electric push rod is fixedly connected to a connecting rod, and the connecting rod is fixedly connected to a clamping disk, two limit rods are slidably connected to the inner side of the rotating disk, and the other end of the limit rod is fixedly connected to another clamping disk, a buffer spring is installed between the rotating disk and the other clamping disk, and the opposite sides of the two clamping disks are respectively fixedly connected to pipes, and the outer wall of one of the clamping disks is fixedly connected to a large spur gear ring.
[0008] As a further solution of the present invention: the knocking mechanism includes a knocking slide box fixedly connected to the top of the mounting plate, and the knocking slide box is slidably connected to a sliding baffle inside, a knocking rod is fixedly connected to one side of the sliding baffle, and a toggle rod is fixedly connected to the outside of the sliding baffle, a rebound spring is provided between the inside of the knocking slide box and the sliding baffle, and a sliding groove is provided on one side of the knocking slide box, the top of the mounting plate is fixedly connected to a linkage support plate, and the linkage rotating rod is rotatably connected to the inner side of the linkage support plate, the other end of the linkage rotating rod is fixedly connected to a toggle plate, the outer wall of the toggle plate is fixedly connected to a toggle block, and the outer wall of the linkage rotating rod is fixedly connected to a small spur gear ring meshing with the large spur gear ring.
[0009] As a further solution of the present invention: the cooling mechanism includes a pad fixedly connected to the top of the knocking slide box, the top of the pad is fixedly connected to a cooling box, and the inside of the cooling box is divided into five air chambers by four partitions, the outside of the cooling box is fixedly connected to a heating box, the inside of the heating box is fixedly connected to four heating resistance wires, and the four heating resistance wires all pass through an air chamber inside the cooling box, a piston block is slidably connected to the inside of the middle air chamber, one side of the piston block is fixedly connected to a push rod, and one end of the push rod passes through the outside of the cooling box and is fixedly connected to a linkage mounting plate, a power assembly is arranged between the knocking rod and the linkage mounting plate, and a channel switching assembly is arranged on the top of the cooling box.
[0010] As a further solution of the present invention: the channel switching assembly includes a sealing plate fixedly connected to the top of the cooling box, the air bin located in the middle is connected to four active solenoid valves, and the air outlet ends of the four active solenoid valves are respectively connected to the other four air bins, the four active solenoid valves are all fixedly connected to the sealing plate, four slave solenoid valves are fixedly connected to the top of the sealing plate, and each of the slave solenoid valves is connected to one air bin, the top of the cooling box is fixedly connected to a fixed base, and the inner side of the fixed base is fixedly connected to a cooling pipe, and the cooling pipe is communicated with the inside of the cooling box, and the air outlet of the cooling pipe is fixedly connected to a guide nozzle.
[0011] As a further solution of the present invention: the power assembly includes a connecting rod fixedly connected to the top of the knocking rod, one end of the connecting rod is fixedly connected to a sliding mounting plate, one side of the sliding mounting plate is fixedly connected to an active rack, one side of the active rack is meshed with a large spur gear, and the large spur gear is rotatably connected to the top of the knocking slide box, the knocking slide box is rotatably connected to a small spur gear meshed with the large spur gear, one side of the small spur gear is meshed with a driven rack, and the driven rack is fixedly connected to the linkage mounting plate.
[0012] As a further solution of the present invention: the channel switching assembly also includes a control groove opened on the inner side of the cooling box, and a control plate is slidably connected to the inner side of the control groove, the control plate is fixedly connected to the linkage mounting plate, and a first air outlet groove and a second air outlet groove are opened on the inner side of the control plate, and the first air outlet groove is communicated with the second air outlet groove, and the diameter of the first air outlet groove is smaller than the diameter of the cooling pipe.
[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. By setting up the cooperation of parts such as buffer springs, when one clamping plate drives one pipe to move toward another pipe, after the two pipes are docked, the output end of the electric push rod will continue to move a distance, thereby pushing the other pipe to drive the other clamping plate to squeeze the buffer spring. The elastic action of the buffer spring can apply extrusion force to the two pipes, making the contact between the two pipes closer, enhancing the stability of the welded structure, and making the force on the weld more uniform, reducing stress concentration caused by vibration or thermal expansion, and extending the service life; 2. By setting up a knocking mechanism, the rotation of the clamping plate drives the large spur gear ring to rotate, and the rotation of the large spur gear ring drives the small spur gear ring to rotate through the meshing action, and the rotation of the small spur gear ring drives the linkage rotating rod to rotate, and the rotation of the linkage rotating rod drives the toggle block to flip through the toggle plate. The flipping toggle block can drive the toggle rod to move linearly inside the sliding groove through the set arc surface, and the linear motion of the toggle rod drives the knocking rod to move linearly through the sliding baffle. After the toggle rod is separated from the arc surface of the toggle block, the elastic action of the rebound spring drives the knocking rod to move linearly to reset, thereby knocking the weld between the pipes. The vibration generated when knocking the weld can break the grains formed in the solidification process of the weld metal, thereby promoting the formation of new crystal nuclei and achieving the purpose of grain refinement. Refined grains can improve the strength, toughness and fatigue resistance of the weld, making the weld more uniform and dense. At the same time, the mechanical force generated by tapping helps to make it easier to discharge gas and impurities in the weld. During the welding process, there may be some pores and inclusions in the weld metal. These defects will reduce the quality and performance of the weld. Tapping can give gas and inclusions more opportunities to float up and escape before the weld solidifies, thereby reducing the number of pores and inclusions in the weld and improving the purity of the weld. 3. By setting up the coordination of parts such as the air chamber, the knocking rod moves in the direction of the knocking slide box and drives the connecting rod to move synchronously. The large spur gear is driven to reverse through the active rack, and then the driven rack is driven by the small spur gear to drive the linkage mounting plate to move quickly away from the cooling box. When the linkage mounting plate moves, the piston block is driven to move inside an air chamber inside the cooling box through the push rod, so that the gas enters the four air chambers in sequence from the fourth active solenoid valve, the fourth driven solenoid valve to the first active solenoid valve and the first driven solenoid valve. When the knocking rod is reset When the air in the third air chamber is cooled, the air in the third air chamber is discharged sequentially through the first air chamber, the second air chamber, the fourth air chamber and the fifth air chamber under the action of the four active solenoid valves and the four driven solenoid valves, so that the temperature of the air blown from the guide nozzle to the weld position decreases in sequence. By controlling the heating resistance wires of different air chambers to generate heat of different temperatures, and the orderly opening and closing of the active solenoid valves and the driven solenoid valves, the temperature of the air blown from the guide nozzle to the weld position decreases in sequence, simulating the slow cooling process in nature, avoiding defects such as cracks and embrittlement of the weld due to rapid cooling, and improving the quality and performance of the weld. 4. By arranging the coordination of the control board and other parts, the linkage mounting plate moves away from the cooling box and drives the control board to move synchronously, so that the first air outlet slot is docked with the air inlet of the cooling pipe. When the linkage mounting plate is moved to the maximum distance for reset, the gas inside the third air bin enters the first air bin through the first active solenoid valve and is discharged through the first driven solenoid valve. As the first air outlet slot is docked with the air inlet of the cooling pipe, the hot air ejected from the cooling pipe will not generate a large airflow to the newly completed weld. Since the newly completed weld is relatively fragile, a large airflow may cause impact to the weld. Impact, resulting in uneven weld surface, pores or other defects. By controlling the airflow size of the hot air ejected from the cooling pipe, the direct impact of a large airflow on the weld is avoided, which helps to ensure the quality and integrity of the weld, enables the weld to be better formed, and reduces the occurrence of welding defects. After the weld has cooled for a period of time (set according to the length of the first air outlet groove), when the second air outlet groove is at the bottom of the cooling pipe, the gas inside the third air chamber will enter the second air chamber through the second active solenoid valve, so that a large flow of air can be blown during the subsequent cooling of the weld, which can accelerate the cooling speed of the weld after stabilizing the weld quality. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a schematic diagram of the installation mechanism structure of the present invention; Figure 3 It is a schematic diagram of the structure between two clamping disks of the present invention; Figure 4 is a cross-sectional view of the rotating disk of the present invention; Figure 5 is a cross-sectional view of the knocking slide box of the present invention; Figure 6 For the present invention Figure 5 Enlarged view of point A in the middle; Figure 7 This is a schematic diagram of the structure of the knock slide box of the present invention; Figure 8 This is a schematic diagram of the top structure of the knocking slide box of the present invention; Figure 9 This is a schematic diagram of the top structure of the sealing plate of the present invention; Figure 10 This is a schematic diagram of the internal structure of the cooling box of the present invention; Figure 11 is a cross-sectional view of the cooling box of the present invention; Figure 12 It is a schematic diagram of the control panel structure of the present invention.
[0015] In the figure: 1. Base plate; 2. Welding machine base; 3. Welding robot arm; 4. Welding table; 5. Operation panel; 6. Mounting plate; 7. Mounting support plate; 8. Motor mounting base; 9. Driving motor; 10. Driving rod; 11. Rotating plate; 12. Support rotating base; 13. Limiting rod; 14. Clamping plate; 15. Buffer spring; 16. Pipe; 17. Connecting rod; 18. Large spur gear ring; 19. Electric push rod; 20. Connecting rod; 21. Connecting support base; 22. Small spur gear ring; 23. Linkage rod; 24. Linkage support plate; 25. Toggle plate; 26. Toggle block; 27. Toggle rod; 28. Sliding block Plate; 29. Knocking rod; 30. Knocking slide box; 31. Rebound spring; 32. Sliding groove; 33. Connecting rod; 34. Sliding mounting plate; 35. Active rack; 36. Large spur gear; 37. Small spur gear; 38. Driven rack; 39. Linkage mounting plate; 40. Pad; 41. Cooling box; 42. Heating box; 43. Sealing plate; 44. Active solenoid valve; 45. Driven solenoid valve; 46. Push rod; 47. Piston block; 48. Heating resistor wire; 49. Fixed base; 50. Cooling pipe; 51. Guide nozzle; 52. Control groove; 53. Control plate; 54. First air outlet groove; 55. Second air outlet groove. DETAILED DESCRIPTION
[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 efforts are within the scope of protection of the present invention.
[0017] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or connected in one piece; they can be mechanically connected or electrically connected; they can be directly connected, or indirectly connected through an intermediate medium, or they can be internal connections between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following describes an embodiment of the present invention based on its overall structure.
[0018] See also Figures 1 to 12, This embodiment provides a welding device for new energy vehicle manufacturing, including a base plate 1: the top of the base plate 1 is fixedly connected to a welding machine base 2, the top of the welding machine base 2 is fixedly connected to a welding robot arm 3, the top of the base plate 1 near the welding machine base 2 is fixedly connected to a welding table 4, the top of the welding table 4 is provided with a mounting mechanism, the top of the welding table 4 is fixedly connected to an operation panel 5, the top of the middle part of the welding table 4 is fixedly connected to a mounting plate 6, the top of the mounting plate 6 is respectively provided with a knocking mechanism and a cooling mechanism, the mounting mechanism includes a mounting support plate 7 fixedly connected to the top of the welding table 4, one side of the mounting support plate 7 is fixedly connected to a motor mounting seat 8, the top of the motor mounting seat 8 is fixedly connected to a driving motor 9 by a bolt assembly, the output end of the driving motor 9 is fixedly connected to a driving rotating rod 10, the end of the driving rotating rod 10 close to the driving motor 9 passes through the mounting support plate 7 and is rotatably connected to the mounting support plate 7, the other end of the driving rotating rod 10 is fixedly connected to a rotating disk 11, and the top of the mounting disk 6 is fixedly connected The cam 12 is connected to the support rotating seat 12, and the rotating disk 11 is rotatably connected to the inner side of the supporting rotating seat 12. The top of the mounting plate 6 is fixedly connected to the connecting support seat 21, and the inner side of the connecting support seat 21 is rotatably connected to the connecting rod 20. A clamping plate 14 is provided on one side of the connecting rod 20 and one side of the rotating disk 11. An extrusion assembly is provided on one side of the connecting rod 20, between the rotating disk 11 and the two clamping plates 14. The extrusion assembly includes an electric push rod 19 fixedly connected to one end of the connecting rod 20, and the output end of the electric push rod 19 is fixedly connected to a connecting rod 17, and the connecting rod 17 is fixedly connected to one clamping plate 14. Two limit rods 13 are slidably connected to the inner side of the rotating disk 11, and the other end of the limit rod 13 is fixedly connected to the other clamping plate 14. A buffer spring 15 is installed between the rotating disk 11 and the other clamping plate 14. Pipes 16 are respectively fixedly connected to the opposite sides of the two clamping plates 14, and a large spur gear ring 18 is fixedly connected to the outer wall of one of the clamping plates 14. A welding gun for welding is installed at the end of the welding robot arm 3. The clamping plate 14 is a three-claw chuck in the prior art. Since it is a prior art, this solution does not specifically describe how to achieve clamping. Two pipes 16 to be welded are installed between the clamping plates 14, and the electric push rod 19 is started. The output end of the electric push rod 19 drives a clamping plate 14 to move linearly through the connecting rod 17, so that the two pipes 16 are docked, thereby realizing automatic docking of the two pipes 16. Subsequently, the welding gun can be driven by the welding robot arm 3 to weld the two pipes 16; When one of the clamping plates 14 drives one pipe 16 to move toward the other pipe 16, after the two pipes are butted together, the output end of the electric push rod 19 will continue to move a distance, thereby pushing the other pipe to drive the other clamping plate 14 to squeeze the buffer spring 15. The elastic action of the buffer spring 15 can apply an extrusion force to the two pipes 16, making the contact between the two pipes 16 closer, enhancing the stability of the welded structure, and making the force on the weld more uniform, reducing stress concentration caused by vibration or thermal expansion, and extending the service life; The driving motor 9 can be started intermittently. The output end of the driving motor 9 drives the rotating rod 10 to rotate. The driving rod 10 drives the rotating disk 11 to rotate. The rotation of the rotating disk 11 drives the clamping disk 14 to rotate through the limit rod 13. The rotation of the clamping disk 14 can drive the pipe 16 to rotate, which can facilitate circumferential welding of the joint of the pipe 16.
[0019] See also Figures 5 and 6 During the implementation of the above content, it was found that during the butt welding of the two pipes 16, bubbles were easily generated in the molten pool generated by the welding, thereby affecting the quality of the welding. In order to solve the above problem, the following technical improvements were made; The knocking mechanism also includes a knocking slide box 30 fixedly connected to the top of the mounting plate 6, and the inside of the knocking slide box 30 is slidably connected to a sliding baffle 28, one side of the sliding baffle 28 is fixedly connected to a knocking rod 29, and the outside of the sliding baffle 28 is fixedly connected to a toggle rod 27, a rebound spring 31 is provided between the inside of the knocking slide box 30 and the sliding baffle 28, and a sliding groove 32 is provided on one side of the knocking slide box 30, the top of the mounting plate 6 is fixedly connected to a linkage support plate 24, and a linkage rotating rod 23 is rotatably connected to the inner side of the linkage support plate 24, the other end of the linkage rotating rod 23 is fixedly connected to a toggle plate 25, the outer wall of the toggle plate 25 is fixedly connected to a toggle block 26, and the outer wall of the linkage rotating rod 23 is fixedly connected to a small spur gear ring 22 meshing with the large spur gear ring 18; The rotation of the clamping plate 14 drives the large spur gear ring 18 to rotate, and the rotation of the large spur gear ring 18 drives the small spur gear ring 22 to rotate through the meshing action, and the rotation of the small spur gear ring 22 drives the linkage rotating rod 23 to rotate, and the rotation of the linkage rotating rod 23 drives the toggle block 26 to perform a flipping motion through the toggle plate 25. The flipping motion of the toggle block 26 can drive the toggle rod 27 to move linearly inside the sliding groove 32 through the provided arc surface, and the linear motion of the toggle rod 27 drives the knocking rod 29 to move linearly through the sliding baffle 28. After the toggle rod 27 disengages from the arc surface of the toggle block 26, the elastic action of the rebound spring 31 drives the knocking rod 29 to move linearly for reset, thereby knocking the weld between the pipes 16. The vibration generated when knocking the weld can break the grains formed in the weld metal during the solidification process, thereby promoting the formation of new crystal nuclei and achieving the purpose of grain refinement. Refined grains can improve the strength, toughness and fatigue resistance of the weld, making the weld more uniform and dense. At the same time, the mechanical force generated by tapping helps to make it easier to discharge gas and impurities in the weld. During the welding process, there may be some pores and inclusions in the weld metal. These defects will reduce the quality and performance of the weld. Tapping can give gas and inclusions more opportunities to float up and escape before the weld solidifies, thereby reducing the number of pores and inclusions in the weld and improving the purity of the weld.
[0020] See also Figures 1 to 12 , occurs during the cooling process of the weld position in combination with the existing welding device. The existing technology directly cools the weld at a lower temperature. However, since the weld has just been welded, if it is directly cooled at a lower temperature, it is easy for the weld position to produce defects such as cracks and embrittlement due to rapid cooling. Based on this problem, the following technical improvements have been made: The cooling mechanism includes a pad 40 fixedly connected to the top of the knocking slide box 30, the top of the pad 40 is fixedly connected to a cooling box 41, and the inside of the cooling box 41 is divided into five air chambers by four partitions, the outside of the cooling box 41 is fixedly connected to a heating box 42, the inside of the heating box 42 is fixedly connected to four heating resistance wires 48, and the four heating resistance wires 48 all pass through an air chamber inside the cooling box 41, and a piston block 47 is slidably connected to the inside of the middle air chamber, and a push rod 46 is fixedly connected to one side of the piston block 47, and one end of the push rod 46 passes through the outside of the cooling box 41 and is fixedly connected to a linkage mounting plate 39, a power assembly is provided between the knocking rod 29 and the linkage mounting plate 39, and a channel switching assembly is provided on the top of the cooling box 41, and the channel switching assembly includes a sealing plate 43 fixedly connected to the top of the cooling box 41, and the air chamber in the middle is connected to four active solenoid valves 44, and the air outlet ends of the four active solenoid valves 44 are respectively connected to the other four air chambers. The four active solenoid valves 44 are fixedly connected to the sealing plate 43, and the top of the sealing plate 43 is fixedly connected to four driven solenoid valves 45, and each driven solenoid valve 45 is connected to an air chamber. The top of the cooling box 41 is fixedly connected to a fixed base 49, and the inner side of the fixed base 49 is fixedly connected to a cooling pipe 50, and the cooling pipe 50 is connected to the inside of the cooling box 41. The air outlet of the cooling pipe 50 is fixedly connected to a guide nozzle 51. The power assembly includes a fixed connection to the top of the knocking rod 29. A connecting rod 33 is provided, one end of the connecting rod 33 is fixedly connected to a sliding mounting plate 34, one side of the sliding mounting plate 34 is fixedly connected to an active rack 35, one side of the active rack 35 is meshed with a large spur gear 36, and the large spur gear 36 is rotatably connected to the top of the knocking slide box 30, and the knocking slide box 30 is rotatably connected to a small spur gear 37 meshing with the large spur gear 36, one side of the small spur gear 37 is meshed with a driven rack 38, and the driven rack 38 is fixedly connected to a linkage mounting plate 39; The five air chambers inside the cooling box 41 are arranged from left to right as the first air chamber, the second air chamber, the third air chamber, the fourth air chamber and the fifth air chamber. The heat generated by the heating resistance wire 48 inside the first air chamber is 100°C - 150°C, the heat generated by the heating resistance wire 48 inside the second air chamber is 60°C - 80°C, the heat generated by the heating resistance wire 48 inside the fourth air chamber is 30°C - 40°C, and the heat generated by the heating resistance wire 48 inside the fifth air chamber is 15°C - 25°C. The inside of the five air chambers is provided with a heat insulation board for heat insulation. Since the specific method for heat insulation is existing technology, this solution does not go into too much detail. The four active solenoid valves 44 and the four slave solenoid valves 45 are arranged from left to right as the first active solenoid valve, the second active solenoid valve, the third active solenoid valve and the fourth active solenoid valve, the first slave solenoid valve, the second slave solenoid valve, the third slave solenoid valve and the fourth slave solenoid valve, and the four active solenoid valves are all controlled by a PLC controller to open and close; The active solenoid valves 44 and the driven solenoid valves 45 corresponding to each other are started and stopped at the same time; When the four air chambers inside the cooling box 41 are intake, the four active solenoid valves 44 and the four driven solenoid valves 45 are opened and closed in sequence, from the fourth active solenoid valve, the fourth driven solenoid valve to the first active solenoid valve and the first driven solenoid valve. When exhausting, the upper opening mode is to open the first active solenoid valve and the first driven solenoid valve to the fourth active solenoid valve and the fourth driven solenoid valve in sequence, so that hot air of different temperatures is discharged in sequence from the four air chambers to cool the weld position of the welded pipe 16. The knocking rod 29 moves toward the knocking slide box 30 and drives the connecting rod 33 to move synchronously. The large spur gear 36 is driven to reverse through the active rack 35, and then the driven rack 38 is driven through the small spur gear 37 to drive the linkage mounting plate 39 to move quickly away from the cooling box 41. When the linkage mounting plate 39 moves, the piston block 47 is driven by the push rod 46 to move inside an air chamber inside the cooling box 41, so that the gas enters the four air chambers in sequence from the fourth active solenoid valve, the fourth driven solenoid valve, the first active solenoid valve and the first driven solenoid valve. When the knocking rod 29 is reset, Under the action of the four active solenoid valves 44 and the four driven solenoid valves 45, the gas inside the third gas chamber is discharged in sequence through the first gas chamber, the second gas chamber, the fourth gas chamber and the fifth gas chamber, so that the temperature of the gas blown toward the weld position by the guide nozzle 51 decreases in sequence. By controlling the heating resistors 48 of different gas chambers to generate heat of different temperatures, and the orderly opening and closing of the active solenoid valves 44 and the driven solenoid valves 45, the temperature of the gas blown toward the weld position by the guide nozzle 51 decreases in sequence, simulating the slow cooling process in nature, avoiding defects such as cracks and embrittlement in the weld due to rapid cooling, and improving the quality and performance of the weld.
[0021] See also Figures 11 and 12 In the process of implementing the above technology, it was found that if the cooling air blown out immediately after the weld is completed is too strong, it is easy to cause a greater impact on the weld pool, thereby affecting the quality of the weld. Based on this problem, the following technical improvements were made: The channel switching assembly further includes a control slot 52 formed on the inner side of the cooling box 41, and a control plate 53 is slidably connected to the inner side of the control slot 52. The control plate 53 is fixedly connected to the linkage mounting plate 39. A first air outlet slot 54 and a second air outlet slot 55 are formed on the inner side of the control plate 53, and the first air outlet slot 54 and the second air outlet slot 55 are communicated with each other. The diameter of the first air outlet slot 54 is smaller than the diameter of the cooling tube 50. When the linkage mounting plate 39 moves away from the cooling box 41, it drives the control plate 53 to move synchronously, so that the first air outlet groove 54 is docked with the air inlet of the cooling pipe 50. When the linkage mounting plate 39 moves to the maximum distance for reset, the gas inside the third gas bin enters the first gas bin through the first active solenoid valve and is discharged through the first driven solenoid valve. Since the first air outlet groove 54 is docked with the air inlet of the cooling pipe 50, the hot air ejected from the cooling pipe 50 will not generate a large airflow on the newly welded weld. Since the newly welded weld is relatively fragile, a large airflow may cause an impact on the weld, resulting in The weld surface is uneven, and there are pores or other defects. By controlling the airflow size of the hot air ejected from the cooling pipe 50, the direct impact of a large airflow on the weld is avoided, which helps to ensure the quality and integrity of the weld, so that the weld can be better formed and the occurrence of welding defects is reduced. After the weld area has cooled for a period of time (set according to the length of the first air outlet groove 54), when the second air outlet groove 55 is at the bottom of the cooling pipe 50, the gas inside the third air chamber will enter the second air chamber through the second active solenoid valve, so that a large flow of air can be blown when the weld is subsequently cooled, which can accelerate the cooling rate of the weld after the weld quality is stabilized.
[0022] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.
Claims
1. A welding device for manufacturing new energy vehicles, characterized in that: The invention comprises a bottom plate (1): the top of the bottom plate (1) is fixedly connected to a welding machine base (2), the top of the welding machine base (2) is fixedly connected to a welding robot arm (3), the top of the bottom plate (1) close to the welding machine base (2) is fixedly connected to a welding table (4), the top of the welding table (4) is provided with a mounting mechanism, the top of the welding table (4) is fixedly connected to an operating panel (5), the top of the middle part of the welding table (4) is fixedly connected to a mounting plate (6), and the top of the mounting plate (6) is respectively provided with a knocking mechanism and a cooling mechanism.
2. A welding device for manufacturing new energy vehicles according to claim 1, characterized in that: The mounting mechanism comprises a mounting support plate (7) fixedly connected to the top of the welding table (4), a motor mounting seat (8) fixedly connected to one side of the mounting support plate (7), a driving motor (9) fixedly connected to the top of the motor mounting seat (8) via a bolt assembly, an output end of the driving motor (9) fixedly connected to a driving rotating rod (10), an end of the driving rotating rod (10) close to the driving motor (9) passes through the mounting support plate (7) and is rotatably connected to the mounting support plate (7), and the other end of the driving rotating rod (10) fixedly connected to a rotating disk (11), The top of the mounting plate (6) is fixedly connected to a supporting rotating seat (12), and the rotating plate (11) is rotatably connected to the inner side of the supporting rotating seat (12). The top of the mounting plate (6) is fixedly connected to a connecting support seat (21), and the inner side of the connecting support seat (21) is rotatably connected to a connecting rotating rod (20). A clamping plate (14) is provided on one side of the connecting rotating rod (20) and one side of the rotating plate (11). An extrusion assembly is provided on one side of the connecting rotating rod (20), between the rotating plate (11) and the two clamping plates (14).
3. A welding device for manufacturing new energy vehicles according to claim 2, characterized in that: The extrusion assembly includes an electric push rod (19) fixedly connected to one end of the connecting rod (20), the output end of the electric push rod (19) is fixedly connected to a connecting rod (17), and the connecting rod (17) is fixedly connected to a clamping disk (14), the inner side of the rotating disk (11) is slidably connected to two limit rods (13), and the other end of the limit rod (13) is fixedly connected to another clamping disk (14), a buffer spring (15) is installed between the rotating disk (11) and the other clamping disk (14), and the opposite sides of the two clamping disks (14) are respectively fixedly connected to pipes (16), and the outer wall of one of the clamping disks (14) is fixedly connected to a large spur gear ring (18).
4. A welding device for manufacturing new energy vehicles according to claim 2, characterized in that: The knocking mechanism comprises a knocking slide box (30) fixedly connected to the top of the mounting plate (6), and the inside of the knocking slide box (30) is slidably connected to a sliding baffle (28), one side of the sliding baffle (28) is fixedly connected to a knocking rod (29), and the outside of the sliding baffle (28) is fixedly connected to a toggle rod (27), a rebound spring (31) is provided between the inside of the knocking slide box (30) and the sliding baffle (28), and a sliding groove (32) is provided on one side of the knocking slide box (30), the top of the mounting plate (6) is fixedly connected to a linkage support plate (24), and the linkage rotating rod (23) is rotatably connected to the inner side of the linkage support plate (24), the other end of the linkage rotating rod (23) is fixedly connected to a toggle plate (25), the outer wall of the toggle plate (25) is fixedly connected to a toggle block (26), and the outer wall of the linkage rotating rod (23) is fixedly connected to a small spur gear ring (22) meshing with the large spur gear ring (18).
5. A welding device for manufacturing new energy vehicles according to claim 4, characterized in that: The cooling mechanism includes a pad (40) fixedly connected to the top of the knocking slide box (30), the top of the pad (40) is fixedly connected to a cooling box (41), and the inside of the cooling box (41) is divided into five air chambers by four partitions, the outside of the cooling box (41) is fixedly connected to a heating box (42), the inside of the heating box (42) is fixedly connected to four heating resistance wires (48), and the four heating resistance wires (48) all pass through an air chamber inside the cooling box (41), and a piston block (47) is slidably connected to the inside of the middle air chamber, one side of the piston block (47) is fixedly connected to a push rod (46), and one end of the push rod (46) passes through the outside of the cooling box (41) and is fixedly connected to a linkage mounting plate (39), a power component is provided between the knocking rod (29) and the linkage mounting plate (39), and a channel switching component is provided on the top of the cooling box (41).
6. A welding device for manufacturing new energy vehicles according to claim 5, characterized in that: The channel switching assembly includes a sealing plate (43) fixedly connected to the top of the cooling box (41), the air bin located in the middle is connected to four active solenoid valves (44), and the air outlet ends of the four active solenoid valves (44) are respectively connected to the other four air bins, the four active solenoid valves (44) are all fixedly connected to the sealing plate (43), the top of the sealing plate (43) is fixedly connected to four slave solenoid valves (45), and each slave solenoid valve (45) is connected to one air bin, the top of the cooling box (41) is fixedly connected to a fixed base (49), and the inner side of the fixed base (49) is fixedly connected to a cooling pipe (50), and the cooling pipe (50) is communicated with the inside of the cooling box (41), and the air outlet of the cooling pipe (50) is fixedly connected to a guide nozzle (51).
7. A welding device for manufacturing new energy vehicles according to claim 6, characterized in that: The power assembly includes a connecting rod (33) fixedly connected to the top of the knocking rod (29), one end of the connecting rod (33) is fixedly connected to a sliding mounting plate (34), one side of the sliding mounting plate (34) is fixedly connected to an active rack (35), one side of the active rack (35) is meshed with a large spur gear (36), and the large spur gear (36) is rotatably connected to the top of the knocking slide box (30), the knocking slide box (30) is rotatably connected to a small spur gear (37) meshed with the large spur gear (36), one side of the small spur gear (37) is meshed with a driven rack (38), and the driven rack (38) is fixedly connected to the linkage mounting plate (39).
8. A welding device for manufacturing new energy vehicles according to claim 6, characterized in that: The channel switching assembly further comprises a control groove (52) provided on the inner side of the cooling box (41), and a control plate (53) is slidably connected to the inner side of the control groove (52), and the control plate (53) is fixedly connected to the linkage mounting plate (39), and a first air outlet groove (54) and a second air outlet groove (55) are provided on the inner side of the control plate (53), and the first air outlet groove (54) and the second air outlet groove (55) are communicated with each other, and the diameter of the first air outlet groove (54) is smaller than the diameter of the cooling pipe (50).