A vehicle frame assembly welding device

Abstract

The application relates to the technical field of automobile production, and discloses a vehicle frame assembly welding device, which comprises a shell, side plates are fixedly connected to the two sides of the shell, a first rotating plate is arranged at the front end of the top of the shell, a second rotating plate is arranged at the rear end of the top of the shell, telescopic rods are rotationally connected to the two sides of the bottom of the first rotating plate, and a push plate is arranged at the top of the first rotating plate. The vehicle frame assembly welding device is characterized in that the second rotating plate is first rotated counterclockwise by 90 degrees and then moved close to the first rotating plate by the overturning mechanism, the frame is overturned and transferred by clockwise deflection of the first rotating plate, and the welding blind area is eliminated; the auxiliary mechanism is linked to drive the telescopic rods to lift and make the first rotating plate slightly inclined, the frame is guided to move close to the second rotating plate; the pushing mechanism drives the push plate to extend and push the frame, the frame is prevented from shaking and falling off, the three parts are cooperated without complicated clamping, the welding quality and efficiency are improved, the part damage is reduced, and the flexible production of multiple vehicle models is adapted.

Description

Technical Field

[0001] This invention relates to the field of automobile manufacturing technology, and in particular to a welding device for automobile frame assembly. Background Technology

[0002] In the automotive manufacturing industry, the chassis assembly, as the core load-bearing structure of the vehicle body, directly determines the overall safety and durability of the vehicle through its welding quality. Currently, the mainstream chassis assembly welding equipment still has many technical defects in practical applications, making it difficult to meet the needs of efficient and high-quality production. The specific problems are as follows.

[0003] In traditional welding equipment, welding blind spots easily form on the bottom or contact surface of the frame assembly after placement. Due to the limited field of view, the robotic arm cannot accurately align these weld points, easily leading to welding defects that affect the structural strength and finished product quality of the frame assembly. If welding is required on the other side of the frame assembly, existing technologies mostly rely on manual flipping or simple mechanical flipping. Manual flipping is labor-intensive and inefficient, while mechanical flipping requires clamping and fixing the frame before it can be flipped. This means that the frame assembly needs to be pre-clamped and fixed every time it is flipped, and the clamping components used for fixing need to be adapted to frame assemblies of different sizes, resulting in clamping... The design of the holding components has become complex and lacks versatility, which not only increases the manufacturing cost of the equipment, but also limits the flexibility of welding production to a certain extent. It is difficult to quickly flip the components after welding on one side. More importantly, if the clamping force is not properly controlled during the clamping and fixing process, it is easy to cause damage such as indentation and deformation to the surface of the frame assembly. This is especially true for frame components with thin walls or irregular structures, where the risk of damage is even higher, further reducing the yield rate of finished products. At the same time, the clamping and unlocking operation process requires additional manual monitoring or equipment linkage control, which prolongs the production cycle of a single process and makes it difficult to improve the overall welding efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the existing technology has the disadvantages of welding blind spots in the frame welding, and the flipping and transfer process is prone to bumps and has poor stability. To this end, we propose an automotive frame assembly welding device.

[0005] To achieve the above objectives, this application adopts the following technical solution: an automobile frame assembly welding device, including a housing, side plates fixedly connected to both sides of the housing, a first rotating plate provided at the front end of the top of the housing, a second rotating plate provided at the rear end of the top of the housing, telescopic rods rotatably connected to both sides of the bottom of the first rotating plate, and a push plate provided at the top of the first rotating plate.

[0006] The housing is equipped with a flipping mechanism. The flipping mechanism causes the second rotating plate to first deflect counterclockwise by 90 degrees, then move in a straight line to approach the first rotating plate and cooperate with the clockwise deflection of the first rotating plate to transfer the frame assembly to the surface of the second rotating plate. After the first rotating plate carries the frame, it deflects clockwise to reset and moves in a straight line back to the initial position, so as to realize the flipping and maneuvering of the frame assembly.

[0007] An auxiliary mechanism is connected to a tilting mechanism so that when the first rotating plate and the second rotating plate are close together, the telescopic rod can be pushed up to a certain height, thereby causing the first rotating plate to deflect slightly again, thus tilting the surface frame assembly into the interior of the second rotating plate.

[0008] A pushing mechanism is connected to an auxiliary mechanism so that when the first rotating plate is at a slight angle, it drives the push plate to extend, so that the push plate pushes the frame assembly on the surface of the first rotating plate closer to the second rotating plate, and the auxiliary frame assembly gets closer to the surface of the second rotating plate.

[0009] Preferably, the flipping mechanism includes:

[0010] A hydraulic rod has a movable plate fixedly connected to its output end. Guide rods are fixedly connected to both sides inside the outer casing. The movable plate is slidably connected to the surface of the guide rods. A contraction shell is fixedly connected to both ends of the movable plate. Movable grooves are formed on both sides of the contraction shell. A toothed plate is slidably connected to the inner wall of the contraction shell. An I-shaped rotating shell is slidably connected to the inner wall of the movable groove. The bottom of the toothed plate is rotatably connected to the surface of the I-shaped rotating shell. A spring is fixedly connected to one side of the inner wall of the I-shaped rotating shell. A first sliding column is fixedly connected to the other end of the spring. The first sliding column is slidably connected to... The first rotating plate is rotatably connected to the inner wall of the I-shaped rotating shell. A rotating plate is rotatably connected to one end of the rotating plate. A second sliding column is rotatably connected to the bottom of the rotating plate. A guide block is fixedly connected to one end of the second sliding column. A shaped plate is fixedly connected to both ends of the moving plate. A gear is rotatably connected to the top of the shaped plate. The two sides of the second rotating plate are fixedly connected to the gear. A base is provided at the bottom of the shell. The two ends of the top of the base are rotatably connected to the bottom of the telescopic rod through a rotating shaft. A support plate is fixedly connected to the top of the shell. The two sides of the first rotating plate are rotatably connected to the support plate through a rotating shaft.

[0011] Preferably, the auxiliary mechanism includes:

[0012] A skateboard has grooves on both sides and a slope at one end near the base. A long board is fixedly connected inside the outer shell and slidably connected to the inner wall of the skateboard. Push rods are fixedly connected to both sides of the bottom of the movable board and slidably connected to the inner wall of the groove. An inclined groove is formed at the bottom of the base. Limit blocks are fixedly connected to both sides of the base. Lifting grooves are formed on both sides of the inner wall of the outer shell and the limit blocks are slidably connected to the inner wall of the lifting groove.

[0013] Preferably, the actuating mechanism includes:

[0014] A toothed disc is fixedly connected to the top of a support plate. A toothed column is rotatably connected to the bottom of the first rotating plate. Tooth rows are fixedly connected to both sides of the bottom of the push plate. One side of the tooth rows meshes with the surface of the toothed column. Slide rods are fixedly connected to all four sides of the bottom of the push plate. The slide rods are slidably connected inside the first rotating plate.

[0015] Preferably, the bottom of the side plate has a deep long groove, the top of the side plate has a shallow long groove, one end of the shallow long groove has a deep arc groove, the bottom of the deep arc groove is connected to the deep long groove, the other end of the shallow long groove has a sloping arc groove, the bottom of the sloping arc groove is connected to the deep long groove, the inner wall of the deep long groove has a guide groove, and the guide block is slidably connected to the inner wall of the guide groove.

[0016] Preferably, both the first rotating plate and the second rotating plate are L-shaped structures, and one end of the first rotating plate is provided with a plurality of docking grooves.

[0017] Preferably, the inner wall structure of the slope arc groove is arc-shaped and gradually rises, the opening depth of the slope arc groove is shallower than the inner wall depth of the shallow long groove, the inner wall depth of the deep arc groove is deeper than the shallow long groove, and the inner wall depths of the deep arc groove and the deep long groove are equal.

[0018] Preferably, the rotation range of the second rotating plate is 90 degrees, and the rotation range of the first rotating plate is 100 degrees.

[0019] The technical effects and advantages of this invention are as follows:

[0020] In this invention, the automatic flipping of the frame assembly is achieved through a flipping mechanism. Specifically, the second rotating plate first deflects counterclockwise by 90 degrees under the operation of the flipping mechanism, then moves linearly to approach the first rotating plate that supports the frame. Subsequently, in conjunction with the clockwise deflection of the first rotating plate, the frame assembly is smoothly transferred to the surface of the second rotating plate. As the second rotating plate resets and flips, the frame assembly is transferred into the second rotating plate, and the frame assembly is flipped. After the flipping is completed, the bottom of the frame assembly, which was originally facing downwards, becomes the exposed surface facing upwards. The welding blind area at the bottom is fully opened, and the welding robotic arm can directly and accurately connect all weld points, effectively avoiding welding defects caused by perspective issues, and greatly improving the overall welding quality and finished product quality.

[0021] In this invention, the auxiliary mechanism is linked with the flipping mechanism. When the first rotating plate and the second rotating plate approach each other, the base is pushed up. The telescopic rod causes the first rotating plate to tilt slightly, so that the frame assembly naturally moves towards the second rotating plate. This design uses the guiding force formed by gravity and tilt angle to avoid possible hard pushing. It prevents the second rotating plate from resetting and rotating to lift the frame when the frame assembly contacts the second rotating plate, which would cause shaking and collision. At the same time, it ensures that the frame assembly always maintains relative alignment with the second rotating plate during the transfer process, providing a stable premise for the second rotating plate to support the frame and complete the flipping.

[0022] In this invention, a pushing mechanism drives a pusher plate to extend towards the second rotating plate, actively pushing the frame assembly closer to the surface of the second rotating plate. This action compensates for the lag that may exist when relying solely on gravity guidance. Especially for frame assemblies with large weight or a shifted center of gravity, it can effectively prevent them from swaying, tipping, or even falling off in the opposite direction due to inertia during the tilting of the first rotating plate. At the same time, the pushing force of the pusher plate and the tilting angle of the first rotating plate work together to ensure that the frame assembly smoothly transitions to the surface of the second rotating plate, further guaranteeing the reliability of the flipping and transfer. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 This is a cross-sectional view of the internal structure of the present invention;

[0025] Figure 3 This is a sectional view of the vertical cross-section of the outer shell structure of the present invention;

[0026] Figure 4 This is an exploded view of the flipping mechanism of the present invention.

[0027] Figure 5 This is an exploded view of the position and structure of the contraction shell and toothed plate of the present invention;

[0028] Figure 6This is an exploded view of the auxiliary mechanism portion of the present invention;

[0029] Figure 7 This is a bottom view of the auxiliary mechanism of the present invention;

[0030] Figure 8 This is a schematic diagram of the side plate structure of the present invention;

[0031] Figure 9 This is a schematic diagram showing the positions of the first rotating plate and the second rotating plate of the present invention.

[0032] Legend: 1. Outer shell; 2. Side plate; 3. First rotating plate; 4. Second rotating plate; 5. Telescopic rod; 6. Push plate; 7. Hydraulic rod; 8. Moving plate; 9. Guide rod; 10. Retractable shell; 11. Moving groove; 12. Gear plate; 13. I-shaped rotating shell; 14. Spring; 15. First sliding column; 16. Rotating plate; 17. Second sliding column; 18. Guide block; 19. Irregular plate; 20. Gear; 21. Base; 22. Support plate; 23. Deep long groove; 24. Shallow long groove; 25. Deep arc groove; 26. Sloping arc groove; 27. Guide groove; 28. Slide plate; 29. ​​Slide groove; 30. Long plate; 31. Push rod; 32. Angled groove; 33. Lifting groove; 34. Limiting block; 35. Gear plate; 36. Gear column; 37. Gear row; 38. Slide rod; 39. Connecting groove. Detailed Implementation

[0033] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the invention in a schematic manner, and therefore only show the components relevant to the invention.

[0034] Reference Figure 1 - Figure 9 As shown, the present invention provides a welding device for an automobile frame assembly, including a housing 1, side plates 2 fixedly connected to both sides of the housing 1, a first rotating plate 3 provided at the front end of the top of the housing 1, a second rotating plate 4 provided at the rear end of the top of the housing 1, telescopic rods 5 rotatably connected to both sides of the bottom of the first rotating plate 3, and a push plate 6 provided at the top of the first rotating plate 3.

[0035] The housing 1 is equipped with a flipping mechanism, an auxiliary mechanism is connected to the flipping mechanism by transmission, and a pushing mechanism is connected to the auxiliary mechanism by transmission.

[0036] Reference Figure 1 - Figure 9 As shown, in this embodiment, the flipping mechanism includes:

[0037] A hydraulic rod 7 has a movable plate 8 fixedly connected to its output end. Guide rods 9 are fixedly connected to both sides inside the outer casing 1. The movable plate 8 is slidably connected to the surface of the guide rods 9. A contraction shell 10 is fixedly connected to both ends of the movable plate 8. Movable grooves 11 are opened on both sides of the contraction shell 10. A toothed plate 12 is slidably connected to the inner wall of the contraction shell 10. An I-shaped rotating shell 13 is slidably connected to the inner wall of the movable groove 11. The bottom of the toothed plate 12 is rotatably connected to the surface of the I-shaped rotating shell 13. A spring 14 is fixedly connected to one side of the inner wall of the I-shaped rotating shell 13. A first sliding column 15 is fixedly connected to the other end of the spring 14. The first sliding column 15 is slidably connected to the inner wall of the I-shaped rotating shell 13. A rotating plate 16 is rotatably connected to one end of the I-shaped rotating shell 13. The bottom of the rotating plate 16 is rotatably connected to... A second sliding column 17 is provided, with a guide block 18 fixedly connected to one end of the second sliding column 17. Irregularly shaped plates 19 are fixedly connected to both ends of the moving plate 8. A gear 20 is rotatably connected to the top of the irregularly shaped plate 19. The two sides of the second rotating plate 4 are fixedly connected to the gear 20. A base 21 is provided at the bottom of the outer shell 1. The top two ends of the base 21 are rotatably connected to the bottom of the telescopic rod 5 via rotating shafts. A support plate 22 is fixedly connected to the top of the outer shell 1. The two sides of the first rotating plate 3 are rotatably connected to the support plate 22 via rotating shafts. A deep long groove 23 is provided at the bottom of the side plate 2, and a shallow long groove 24 is provided at the top of the side plate 2. A deep arc groove 25 is provided at one end of the shallow long groove 24, and the bottom of the deep arc groove 25 communicates with the deep long groove 23. A sloped arc groove 26 is provided at the other end of the shallow long groove 24. The bottom of the slope arc groove 26 is connected to the deep long groove 23. The inner wall of the deep long groove 23 is provided with a guide groove 27. The guide block 18 is slidably connected to the inner wall of the guide groove 27. The inner wall structure of the slope arc groove 26 is arc-shaped and gradually rises. The opening depth of the slope arc groove 26 is shallower than the inner wall depth of the shallow long groove 24. The inner wall depth of the deep arc groove 25 is deeper than the shallow long groove 24. The inner wall depth of the deep arc groove 25 is equal to that of the deep long groove 23. The first rotating plate 3 and the second rotating plate 4 are both L-shaped structures. One end of the first rotating plate 3 is provided with several docking grooves 39. By placing the frame assembly welding parts on the top of the first rotating plate 3, and then welding them by the multi-axis welding robot arm on the top of the outer shell 1, after the top surface of the frame assembly is welded, the operator starts the flipping mechanism to transport the components. Okay, the hydraulic rod 7 first moves forward, pushing the moving plate 8 along the guide rod 9. This causes the moving plate 8 to move the irregular plate 19 and the shrinking shell 10 forward synchronously. At this time, the first sliding column 15 is at the top of the deep arc groove 25. Because the inner wall of the shallow long groove 24 is shallower than the deep arc groove 25, the first sliding column 15 cannot move forward into the shallow long groove 24 and can only slide along the deep arc groove 25. This causes the first sliding column 15 to slide along the deep arc groove 25 to the bottom. During this process, the second sliding column 17 and the guide block 18 are always in the deep long groove 23 and the guide groove 27. Because the first sliding column 15 can only slide along the trajectory of the deep arc groove 25, the second sliding column 17 cannot move. As the first sliding column 15 gradually slides into the deep long groove 23 along the deep arc groove 25,The first sliding column 15 and the second sliding column 17 will rotate from their initial vertical state to a horizontal state. This allows the first sliding column 15 to move vertically downward under the guidance of the deep arc groove 25. During this process, the I-shaped rotating shell 13 will slide along the inner wall of the moving groove 11 to the bottom, and the I-shaped rotating shell 13 will pull the toothed plate 12 to move synchronously downward along the inner wall of the contraction shell 10 to the bottom.

[0038] Since the second rotating plate 4 and gear 20 move forward synchronously with the irregular plate 19, when the toothed plate 12 moves forward with the shrinking shell 10 and gradually moves downward, the second rotating plate 4 and gear 20 will also move forward synchronously. When the toothed plate 12 moves downward, it will push the gear 20 to rotate, thereby deflecting the second rotating plate 4. During this process, the toothed plate 12 will drive the second rotating plate 4 to rotate counterclockwise by 90 degrees, so that the second rotating plate 4 is in a vertical state. At this time, the telescopic rod 5 will also move slowly to push the first rotating plate 3 to deflect along the support plate 22. After that, the first sliding column 15 and the second sliding column 17 are both in the deep groove 23. The first sliding column 15 continues to advance under the push of the hydraulic rod 7. When the first sliding column 15 slides to the front end of the deep groove 23 and is ready to enter the slope arc groove 26, the second rotating plate 4 also moves forward to one side of the first rotating plate 3. At this time, the bottoms of the first rotating plate 3 and the second rotating plate 4 will be close to each other. At this time, the first rotating plate 3 has been deflected to a vertical state by the telescopic rod 5, but the deflection speed of the first rotating plate 3 is slightly slower than that of the second rotating plate 4 when it moves to this position. And one side of the bottom of the second rotating plate 4 is in an insertion state with the inner wall of the docking groove 39. At this time, the bottom of the second rotating plate 4... Most of the first part will be inserted into the docking groove 39. Then, the first sliding column 15 will gradually slide upwards along the sloped arc groove 26. At this time, the I-shaped rotating shell 13 and the toothed plate 12 will move upwards along the sliding trajectory of the first sliding column 15. The rising toothed plate 12 will mesh with the gear 20, pushing the gear 20 to rotate clockwise. This will cause the second rotating plate 4 to reset and deflect. The second rotating plate 4, following the first sliding column 15, slides along the sloped arc groove 26 and resets. Simultaneously, it will continue to move forward a certain distance, and the bottom of the second rotating plate 4 will continue to advance along the inner wall of the docking groove 39. The frame assembly bottom approaches the surface of the first rotating plate 3 and begins to reset and deflect. The second rotating plate 4 deflects and separates along the inside of the docking groove 39. During this process, the multiple strip structures at the bottom of the second rotating plate 4 pass through the inside of the docking groove 39, thereby lifting the frame assembly on the surface of the first rotating plate 3. The frame assembly is then supported on the surface of the second rotating plate 4 and deflects with the second rotating plate 4. This causes the bottom surface of the frame assembly, which was originally welded, to fit into the surface of the second rotating plate 4. The bottom surface of the frame assembly is placed on top as the second rotating plate 4 deflects, thus realizing the flipping of the front and back of the frame assembly.

[0039] When the first sliding column 15 slides along the sloped arc groove 26, the sloped inner wall of the groove causes the first sliding column 15 to compress the spring 14, causing it to retract into the inner wall of the I-shaped rotating shell 13. When the second sliding column 17 follows the first sliding column 15, the guide block 18 is restricted by the inner wall of the guide groove 27, limiting its sliding distance and preventing it from sliding into the sloped arc groove 26. When the first sliding column 15 reaches the top of the sloped arc groove 26 and enters the front end of the shallow elongated groove 24, the spring 14, having previously stored energy due to the height difference between the sloped arc groove 26 and the shallow elongated groove 24, releases energy as the first sliding column 15 enters the shallow elongated groove 24. When the first sliding column 15 is inserted into the shallow long groove 24, the spring 14 releases part of the generated force, causing the spring 14 to rebound and push the first sliding column 15 into the shallow long groove 24. At this time, the slope arc groove 26 is higher than the interior of the shallow long groove 24 by a certain space, which makes it impossible for the first sliding column 15 to re-enter the interior of the slope arc groove 26. After that, the first sliding column 15 can only move backward along the shallow long groove 24. Before this, the second rotating plate 4 has completed the reset and deflection to the initial angle. Then, the hydraulic rod 7 pulls the moving plate 8 to move backward and reset. The first sliding column 15 will move backward along the shallow long groove 24, and the second sliding column 17 will move backward along the deep long groove 23. This makes the second rotating plate 4 move backward at the initial angle, and at this time, the top of the second rotating plate 4 supports the flipped frame assembly.

[0040] When the first sliding column 15 retracts along the shallow long groove 24 and enters the top of the deep arc groove 25, because the deep arc groove 25 is lower than the depth of the shallow long groove 24, the spring 14 will rebound again to push the first sliding column 15 into the deep arc groove 25. After that, when the first sliding column 15 moves forward again, it cannot enter the shallow long groove 24. The first sliding column 15 can only slide down along the inside of the deep arc groove 25. When the first sliding column 15 slides to the top of the inner wall of the deep arc groove 25, the first sliding column 15 completes one revolution inside the side plate 2. The second rotating plate 4 has moved the frame assembly it carries to the welding robot arm on the other side, and the bottom surface of the frame assembly has been flipped to the top. After that, the welding robot arm will perform welding processing on the bottom surface of the frame assembly that has not been welded.

[0041] The first rotating plate 3 and the second rotating plate 4 work together to perform front and back flip welding on the frame assembly. This avoids the bottom surface of the frame assembly being obscured during normal welding, which would make it difficult for the welding robot arm to weld accurately at a hidden angle. This avoids the decline in welding quality caused by the viewing angle, effectively improving the comprehensiveness and accuracy of the welding. At the same time, this flip welding method greatly reduces the manual operation of flipping the frame assembly, reduces labor intensity, and improves production efficiency.

[0042] Reference Figure 2 , Figure 3 , Figure 6 and Figure 7 As shown in this embodiment, the auxiliary mechanism includes:

[0043] The slide plate 28 has grooves 29 on both sides. The end of the slide plate 28 near the base 21 is sloped. A long plate 30 is fixedly connected inside the outer shell 1, and the long plate 30 is slidably connected to the inner wall of the slide plate 28. Push rods 31 are fixedly connected to both sides of the bottom of the movable plate 8, and the push rods 31 are slidably connected to the inner wall of the grooves 29. An inclined groove 32 is formed at the bottom of the base 21. Limit blocks 34 are fixedly connected to both sides of the base 21. Lifting grooves 33 are formed on both sides of the inner wall of the outer shell 1, and the limit blocks 34 slide... The moving plate 8 is movably connected to the inner wall of the lifting groove 33. When the moving plate 8 moves forward under the action of the hydraulic rod 7, the moving plate 8 will drive the push rod 31 to move forward synchronously for a while. At this time, the push rod 31 will slide forward along the inside of the slide groove 29. When the push rod 31 moves forward and is placed at the other end of the inner wall of the slide groove 29, the moving plate 8 will drive the push rod 31 to move forward synchronously, which will cause the slide plate 28 to slide forward along the long plate 30 and approach the limiting block 34. When the second rotating plate 4 is already close to the first rotating plate 33, The two plates are parallel to each other and are ready to flip and transfer the frame assembly. The front end of the plate 28 will be placed on the inner wall of the inclined groove 32 and in contact with the inclined surface. When the second rotating plate 4 moves forward again and resets, the plate 28 will also move forward a distance. This makes the inclined surface of the front end of the plate 28 contact the inner wall of the inclined groove 32. When the plate 28 moves forward, it pushes the base 21 upward to lift it a certain height. During this process, the limit block 34 slides upward along the inner wall of the lifting groove 33, and the height of the base 21 will be raised. At the same time, it drives the telescopic rod 5 to lift a certain distance. This makes the lifting of the telescopic rod 5 push the first rotating plate 3 to deflect slightly clockwise, so that the first rotating plate 3 tilts towards the second rotating plate 4. When the first rotating plate 3 tilts, the frame assembly on its top will also tilt and approach the second rotating plate 4. Then, as the second rotating plate 4 resets and deflects, the frame assembly is able to come into contact with the surface of the second rotating plate 4 and can better follow the deflection of the second rotating plate 4 to transfer to the surface of the second rotating plate 4 to achieve its own flipping.

[0044] Reference Figure 6 As shown in this implementation plan, the driving mechanism includes:

[0045] A toothed disc 35 is fixedly connected to the top of the support plate 22. A toothed column 36 is rotatably connected to the bottom of the first rotating plate 3. Toothed rows 37 are fixedly connected to both sides of the bottom of the push plate 6, with one side of each row meshing with the surface of the toothed column 36. Sliding rods 38 are fixedly connected to all four sides of the bottom of the push plate 6, slidingly interlocking within the first rotating plate 3. When the base 21 rises and causes the first rotating plate 3 to deflect again, the toothed column 36 follows the deflection of the first rotating plate 3 and meshes along the toothed marks on the surface of the toothed disc 35. With subsequent deflections of the first rotating plate 3, the toothed column 36 rotates clockwise on the surface of the toothed disc 35. At this time, the toothed rows 37 and the toothed column 36... In the side engagement, when the toothed column 36 rotates clockwise, it will drive the toothed column 37 to move upward a certain distance. This causes the toothed column 37 to drive the push plate 6 to slide upward. Since the push plate 6 faces the side of the second rotating plate 4 after the first rotating plate 3 is deflected, the toothed column 37 will drive the push plate 6 to extend towards the second rotating plate 4, thereby pushing the frame assembly on the surface of the first rotating plate 3 to tilt towards the second rotating plate 4. This ensures that the frame assembly is fully guided into the second rotating plate 4, preventing the frame assembly from wobbling and collapsing towards the first rotating plate 3 due to its own instability when the second rotating plate 4 is reset and rotated to lift the frame assembly. This further ensures the stability of the frame assembly when it is flipped over by the first rotating plate 3 and the second rotating plate 4.

[0046] Reference Figure 9 As shown in this embodiment: the rotation range of the second rotating plate 4 is 90 degrees, and the rotation range of the first rotating plate 3 is 100 degrees. When the second rotating plate 4 and the first rotating plate 3 approach each other and are in a deflected state, the second rotating plate 4 is in a 90-degree deflection state, and the first rotating plate 3 is also in a 90-degree deflection state. However, when the second rotating plate 4 resets its deflection, the first rotating plate 3 achieves a secondary deflection through an auxiliary mechanism, increasing its own deflection angle. This causes the frame assembly originally inside the first rotating plate 3 to tilt, which facilitates the tilting state of the frame assembly to deflect in the opposite direction. The second rotating plate 4 is close to the first rotating plate 3, which allows the bottom of the second rotating plate 4 to better support the frame assembly and hold it within itself when the second rotating plate 4 is reset and deflected. In this process, the second deflection angle of the first rotating plate 3 is small, which makes the frame assembly tilt more slowly and does not have a high impact force. This reduces the impact force generated when the frame assembly is transferred, thereby effectively avoiding damage to the frame assembly due to excessive impact force during the transfer process. This further improves the safety and stability of the entire welding device during operation and provides a reliable guarantee for high-quality welding of the automotive frame assembly.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding device for an automobile frame assembly, comprising a housing (1), characterized in that: Side plates (2) are fixedly connected to both sides of the outer shell (1). A first rotating plate (3) is provided at the front end of the top of the outer shell (1). A second rotating plate (4) is provided at the rear end of the top of the outer shell (1). Telescopic rods (5) are rotatably connected to both sides of the bottom of the first rotating plate (3). A push plate (6) is provided at the top of the first rotating plate (3). The housing (1) is equipped with a flipping mechanism. The flipping mechanism causes the second rotating plate (4) to first deflect counterclockwise by 90 degrees, then move in a straight line close to the first rotating plate (3), and then cooperate with the clockwise deflection of the first rotating plate (3) to transfer the frame assembly to the surface of the second rotating plate (4). After the first rotating plate (3) carries the frame, it deflects clockwise to reset and moves in a straight line back to the initial position to flip the frame assembly. An auxiliary mechanism is connected to a flipping mechanism so that when the first rotating plate (3) and the second rotating plate (4) are close together, the telescopic rod (5) is pushed up to a certain height, thereby causing the first rotating plate (3) to deflect slightly again and tilt the frame assembly on the surface into the interior of the second rotating plate (4). The pushing mechanism is connected to the auxiliary mechanism so that when the first rotating plate (3) is at a slight angle, it drives the push plate (6) to extend, so that the push plate (6) pushes the frame assembly on the surface of the first rotating plate (3) closer to the second rotating plate (4), and the auxiliary frame assembly is close to the surface of the second rotating plate (4). The flipping mechanism includes a hydraulic rod (7), the output end of which is fixedly connected to a movable plate (8). Guide rods (9) are fixedly connected to both sides inside the outer shell (1). The movable plate (8) is slidably connected to the surface of the guide rods (9). A shrink shell (10) is fixedly connected to both ends of the movable plate (8). A moving groove (11) is provided on both sides of the shrink shell (10). A toothed plate (12) is slidably connected to the inner wall of the shrink shell (10). An I-shaped rotating shell (13) is slidably connected to the inner wall of the moving groove (11). The bottom of the toothed plate (12) is rotatably connected to the surface of the I-shaped rotating shell (13). A spring (14) is fixedly connected to one side of the inner wall of the I-shaped rotating shell (13). A first sliding column (15) is fixedly connected to the other end of the spring (14). 5) Sliding connection to the inner wall of the I-shaped rotating shell (13), one end of the I-shaped rotating shell (13) is rotatably connected to a rotating plate (16), the bottom of the rotating plate (16) is rotatably connected to a second sliding column (17), one end of the second sliding column (17) is fixedly connected to a guide block (18), both ends of the moving plate (8) are fixedly connected to irregular plates (19), the top of the irregular plate (19) is rotatably connected to a gear (20), both sides of the second rotating plate (4) are fixedly connected to the gear (20), the bottom of the outer shell (1) is provided with a base (21), the top two ends of the base (21) are rotatably connected to the bottom of the telescopic rod (5) through a rotating shaft, the top of the outer shell (1) is fixedly connected to a support plate (22), and both sides of the first rotating plate (3) are rotatably connected to the support plate (22) through a rotating shaft.

2. The automotive frame assembly welding device according to claim 1, characterized in that: The auxiliary mechanism includes: The slide (28) has grooves (29) on both sides. The end of the slide (28) near the base (21) is inclined. The long plate (30) is fixedly connected inside the shell (1). The long plate (30) is slidably connected to the inner wall of the slide (28). The push rod (31) is fixedly connected to both sides of the bottom of the moving plate (8). The push rod (31) is slidably connected to the inner wall of the groove (29). The bottom of the base (21) has an inclined groove (32). The two sides of the base (21) have fixed limit blocks (34). The two sides of the inner wall of the shell (1) have lifting grooves (33). The limit blocks (34) are slidably connected to the inner wall of the lifting grooves (33).

3. The automotive frame assembly welding device according to claim 1, characterized in that: The propulsion mechanism includes: The toothed disc (35) is fixedly connected to the top of the support plate (22). The bottom of the first rotating plate (3) is rotatably connected to the toothed column (36). The two sides of the bottom of the push plate (6) are fixedly connected to the toothed row (37). One side of the toothed row (37) is meshed with the surface of the toothed column (36). The bottom of the push plate (6) is fixedly connected to the four sides of the bottom of the slide rod (38). The slide rod (38) is slidably connected inside the first rotating plate (3).

4. The automotive frame assembly welding device according to claim 1, characterized in that: The side plate (2) has a deep long groove (23) at the bottom and a shallow long groove (24) at the top. One end of the shallow long groove (24) has a deep arc groove (25), the bottom of the deep arc groove (25) is connected to the deep long groove (23), the other end of the shallow long groove (24) has a slope arc groove (26), the bottom of the slope arc groove (26) is connected to the deep long groove (23), the inner wall of the deep long groove (23) has a guide groove (27), and the guide block (18) is slidably connected to the inner wall of the guide groove (27).

5. The automotive frame assembly welding device according to claim 1, characterized in that: Both the first rotating plate (3) and the second rotating plate (4) are L-shaped structures, and one end of the first rotating plate (3) is provided with several docking grooves (39).

6. The automotive frame assembly welding device according to claim 4, characterized in that: The inner wall structure of the slope arc groove (26) is arc-shaped and gradually rises. The opening depth of the slope arc groove (26) is shallower than the inner wall depth of the shallow long groove (24). The inner wall depth of the deep arc groove (25) is deeper than that of the shallow long groove (24). The inner wall depth of the deep arc groove (25) is equal to that of the deep long groove (23).

7. The automotive frame assembly welding device according to claim 1, characterized in that: The second rotating plate (4) has a rotation range of 90 degrees, and the first rotating plate (3) has a rotation range of 100 degrees.

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