A welding device for battery trays in new energy vehicles

Abstract

This invention relates to the field of automotive battery tray welding technology and discloses a welding device for new energy vehicle battery trays. The device includes a welding frame with an observation glass mounted on its surface, and further includes: a feeding component comprising a feeding plate with power frames fixedly connected to both ends, and a steel conveyor belt inside the power frame; and a detachment component comprising a sliding hole frame with its end fixedly connected to the inner wall of the welding frame. In this invention, the feeding component symmetrically arranges two sets of power frames and a steel conveyor belt. The steel conveyor belt directly carries the battery tray to complete automatic feeding, replacing manual handling and reducing labor intensity. It also avoids the problems of workpiece tilting, bumping, and scratching the tray surface caused by manual placement. The outer ends of the inclined slot frames on both sides are arranged with flared inclined surfaces, which, together with multiple sets of rotatable rollers inside the inclined slot frames, form a self-centering limiting structure. When the battery tray is conveyed with the steel belt, the inclined surfaces automatically correct and center the tray.

Description

Technical Field

[0001] This invention relates to the field of automotive battery tray welding technology, specifically a welding device for new energy vehicle battery trays. Background Technology

[0002] The battery tray, also known as the lower housing of the power battery or the battery pack base, is the core load-bearing structural component of the three-electric system of new energy vehicles. The entire power battery module, water-cooled heat dissipation channel, and high-voltage connectors are all integrated and installed inside the tray. It is a key base connecting the power battery and the vehicle chassis, and has multiple functions such as load bearing, protection, heat dissipation, and sealing. Existing equipment mostly uses ordinary belt conveyor or manual feeding on flat plates. When manually placing battery trays, it is difficult to accurately center them, and the workpieces are very prone to lateral deviation. At the same time, the belt itself is a flexible support carrier, and it is easy for the belt to generate slight vibrations during the conveying and welding process. The battery trays carried by the belt will shake and shift slightly with the belt, which can cause the workpieces to get stuck, affecting the continuous welding efficiency of the battery trays. The workpiece position deviation will affect the laser welding and cause deviation, thus affecting the welding quality. The existing battery tray welding equipment has a separate and independent workpiece positioning and flipping mechanism. It relies solely on the lifting plate to lift the battery tray off the conveyor belt, and then the flipping and clamping mechanism extends separately to clamp the workpiece to complete the flipping. The lifting structure only provides single-point support at the bottom, and the workpiece is only supported by a single point at the bottom. During the welding process, the tray is prone to lateral displacement and slight vibration due to the influence of laser thermal stress and equipment vibration, which directly causes weld misalignment and poor welding consistency. Moreover, the lifting, clamping, and flipping are performed as multiple independent actions, and there is a large amount of waiting idle stroke in a single welding cycle, resulting in low continuous welding production efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a welding device for battery trays in new energy vehicles, so as to solve the problems mentioned in the background art.

[0004] Another objective of this invention is to overcome the shortcomings of existing separate lifting, clamping, and flipping mechanisms, such as unstable positioning and poor adaptability. It provides a hydraulic lifting synchronous linkage top pressure plate bidirectional clamping and positioning structure. The simultaneous lifting and lifting action of the steel conveyor belt presses down to limit the workpiece, completing the locking process in one integrated manner. After locking, the lifting and flipping mechanism completes continuous welding of both sides of the workpiece within a sealed welding cavity, eliminating the need to remove the workpiece from the welding station, shortening the process flow, and simultaneously improving welding positioning accuracy and production efficiency.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: This invention relates to a welding device for battery trays in new energy vehicles, comprising a welding frame, wherein an observation glass is mounted on the surface of the welding frame, and further comprising: The feeding component includes a feeding plate, both ends of which are fixedly connected to a power frame, and a steel belt conveyor is installed inside the power frame; The detachment component includes a sliding hole frame, the end of which is fixedly connected to the inner wall of the welding frame, a pressure plate is slidably connected to the inner wall of the sliding hole frame, and a push plate is hinged to the bottom of the pressure plate; A face-changing component includes a baffle, a bidirectional electric rod is fixedly connected to the surface of the baffle, a bent rod is fixedly connected to the telescopic end of the bidirectional electric rod, and a clamping plate is fixedly connected to the end of the bent rod away from the bidirectional electric rod.

[0006] Furthermore, a base plate is fixedly connected to the bottom of the welding frame, an unloading plate is fixedly connected to the top of the base plate, a support plate is fixedly connected to the top of the base plate, a Y-axis slide rail is installed on the inner wall of the welding frame, a drive device one is slidably connected to the surface of the Y-axis slide rail, an X-axis slide rail is fixedly connected to the surface of the drive device one, a drive device two is slidably connected to the surface of the X-axis slide rail, a lifting device is installed on the surface of the drive device two, a laser welder is installed at the bottom of the lifting device, and a battery tray is provided above the loading plate.

[0007] Furthermore, the top of the support plate is fixedly connected to the bottom of the feeding plate, the end of the feeding plate extends to the outer end of the welding frame, and the Y-axis slide rail is located inside the welding frame.

[0008] Furthermore, the feeding component includes a tripod, the end of which is fixedly connected to the surface of the power frame, an extension plate is fixedly connected to the top of the power frame, a slant frame is fixedly connected to the top of the extension plate, a plurality of rollers are rotatably connected to the inner wall of the slant frame, and a through hole is provided on the top of the feeding plate.

[0009] Furthermore, there are two power frames, which are symmetrically arranged with the upper plate as the center. The surface of the steel belt conveyor extends to the outer end of the power frame, and the top of the steel belt conveyor contacts the bottom of the battery tray. The surface of the roller extends to the outer end of the inclined chute frame. There are two inclined chute frames, which are symmetrically arranged with the upper plate as the center. The ends of the two inclined chute frames away from the unloading plate are set away from each other. The feeding component adopts a steel belt conveyor combined with a flared inclined trough frame and rotatable rollers to form a self-centering conveying structure. The steel belt provides rigid support and eliminates belt vibration issues. The flared inclined surfaces on both sides automatically correct and center the pallet. The rollers convert sliding friction into rolling friction, reducing conveying resistance and preventing workpiece jamming. This replaces manual feeding, reduces the labor intensity of the invention, and avoids situations where manual placement results in tilting or scratching the pallet surface.

[0010] Furthermore, the disengagement component includes a hydraulic rod, the bottom of which is fixedly connected to the top of the base plate, a connecting block fixedly connected to the top of the hydraulic rod, a disengagement plate fixedly connected to the top of the connecting block, a linkage plate fixedly connected to the surface of the connecting block, and a cylindrical rod fixedly connected to the end of the linkage plate away from the connecting block, the surface of the cylindrical rod being rotatably connected to the bottom of the push plate.

[0011] Furthermore, there are two connecting plates, which are symmetrically arranged around the release plate. The surface of the release plate contacts the inner wall of the through hole. There are four sliding hole frames, which are arranged in two groups. Each group has two sliding hole frames, which are symmetrically arranged around the feed plate. The two sliding hole frames are symmetrically arranged around the connecting plate. The push plate is inclined. This integrated bidirectional clamping structure, employing hydraulic rods, connecting blocks, linkage plates, cylindrical rods, and push plates linked to pressure plates, differs from existing separate lifting and limiting mechanisms. The hydraulic lifting release plate lifts the pallet away from the steel conveyor belt, eliminating vibrations during flexible conveying, while simultaneously, the mechanical linkage presses down the pressure plates on both sides onto the upper surface of the pallet. The bottom support and top pressure form a rigid bidirectional lock, preventing lateral swaying and slight displacement of the workpiece, significantly improving the precision of laser welding seams. The entire locking action is completed synchronously by a single hydraulic drive, eliminating the need for multiple cylinders and electric rods operating in stages, greatly shortening the positioning process time and effectively improving the welding production cycle. Compared to existing solutions with only a single bottom lifting support, this bidirectional clamping structure is adaptable to battery pallets of different thicknesses, provides lateral limiting to prevent offset, and is suitable for various workpiece specifications.

[0012] Furthermore, the face-changing component includes a stabilizing frame, with a telescopic rod rotatably connected to one end of the stabilizing frame. A mounting frame is fixedly connected to the end of the telescopic rod away from the stabilizing frame, and the end of the mounting frame away from the telescopic rod is fixedly connected to the surface of the baffle. A power device is installed inside the stabilizing frame, and the end of the telescopic rod near the stabilizing frame is fixedly connected to the output end of the power device. An electric rod is fixedly connected to one end of the stabilizing frame, and the telescopic end of the electric rod is fixedly connected to the surface of the mounting frame. A sliding groove is formed on the inner wall of the welding frame, and a cylinder is fixedly connected to the top of the inner wall of the sliding groove. The bottom of the cylinder is fixedly connected to the top of the stabilizing frame. The face-changing component is driven by a cylinder to lift and adjust to pallets of different thicknesses. The bidirectional electric rod clamps the pallets symmetrically and evenly. The built-in power unit drives the telescopic rod to achieve 180° pallet flipping. The entire flipping process is completed in the closed space of the welding frame, without the need to move the workpiece out of the welding station. The welds on both sides are welded continuously, making the equipment more efficient for continuous operation.

[0013] Furthermore, the surface of the stabilizer is slidably connected to the inner wall of the slide groove, the telescopic end of the bidirectional electric rod extends to the outer end of the baffle, and the two clamping plates are symmetrically arranged with the baffle as the center.

[0014] The present invention has the following beneficial effects: This invention features a symmetrically arranged feeding component consisting of two sets of power frames and a steel conveyor belt. The steel conveyor belt directly carries the battery trays to complete automatic feeding, replacing manual handling and reducing labor intensity. It also avoids the problems of workpiece tilting, bumping, and scratching the tray surface caused by manual placement. The outer ends of the inclined trough frames on both sides are flared and sloped, forming a self-centering limiting structure with multiple sets of rotatable rollers inside the inclined trough frames. When the battery trays are conveyed by the steel belt, the inclined surfaces automatically correct and center the trays. The rollers change sliding friction to rolling friction, significantly reducing the resistance between the tray and the limiting structure, preventing jamming during the feeding process, and ensuring that each battery tray is in a uniform position when delivered to the welding station, allowing the laser welder to perform precise welding operations.

[0015] This invention comprises a hydraulic rod, a connecting block, and a release plate to form a bottom lifting mechanism. Before welding, the hydraulic rod lifts the release plate through the through hole of the loading plate, raising the battery tray away from the steel conveyor belt. This eliminates the workpiece floating problem caused by the flexible support of the belt and avoids slight displacement of the tray with the conveyor belt during the welding process. During the hydraulic lifting process, the connecting plate and the cylindrical rod are simultaneously driven to tilt the push plate, pushing the inner pressure plate of the sliding hole frame above the tray. This forms a two-way clamping structure with the bottom release plate supporting and the top pressure plate pressing down, improving the stability of the battery tray during welding.

[0016] This invention uses a cylinder to drive the stabilizing frame to rise and fall along the welding frame's slide groove, allowing for flexible adjustment of the clamping mechanism's height to accommodate battery trays of different thicknesses. A bidirectional electric rod drives the clamping plates on both sides to open and close synchronously, ensuring symmetrical clamping with balanced force and stable clamping. The power unit drives the telescopic rod to rotate, and with the electric rod assisting in adjusting the mounting frame's angle, it can rotate the clamped battery tray 180°. After completing single-sided welding, it automatically flips over, enabling continuous welding of all weld seams on both sides of the tray. The entire flipping operation is completed within the sealed space of the welding frame, eliminating the need to remove the workpiece from the welding station, resulting in high continuous welding efficiency.

[0017] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention; Figure 3 This is a schematic cross-sectional view of the welding frame structure of the present invention; Figure 4 This is a schematic diagram of the overall structure of the feeding component of the present invention; Figure 5 This is another structural schematic diagram of the feeding component of the present invention; Figure 6 This is a schematic diagram of the overall structure of the detached component of the present invention; Figure 7 This is a schematic diagram of another structure of the component detached from the present invention; Figure 8 This is a schematic diagram of the overall structure of the face-changing component of the present invention; Figure 9 This is another structural schematic diagram of the face-changing component of the present invention; Figure 10 This is a schematic diagram of the mounting bracket structure of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: In the diagram: 1. Base plate; 2. Unloading plate; 3. Welding frame; 4. Observation glass; 5. Battery tray; 6. Y-axis slide rail; 7. Drive device one; 8. X-axis slide rail; 9. Lifting device; 10. Drive device two; 11. Laser welder; 12. Support plate; 13. Feeding component; 14. Unloading component; 15. Changing surface component; 20. Feeding plate; 21. Extension plate; 22. Inclined chute frame; 23. Roller; 24. Steel conveyor belt; 5. Power frame; 26. Through hole; 27. Tripod; 30. Sliding hole frame; 31. Connecting plate; 32. Cylindrical rod; 33. Pressure plate; 34. Release plate; 35. Hydraulic rod; 36. Connecting block; 37. Push plate; 40. Slide groove; 41. Cylinder; 42. Stabilizer; 43. Bidirectional electric rod; 44. Baffle; 45. Clamping plate; 46. Mounting frame; 47. Telescopic rod; 48. Power unit; 49. Bending rod; 50. Electric rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-10As shown, the present invention is a welding device for a battery tray of a new energy vehicle, including a welding frame 3, an observation glass 4 mounted on the surface of the welding frame 3, and further comprising: The feeding component 13 includes a feeding plate 20, and a power frame 25 is fixedly connected to both ends of the feeding plate 20. A steel belt conveyor 24 is installed inside the power frame 25. The detachment component 14 includes a sliding hole frame 30. The end of the sliding hole frame 30 is fixedly connected to the inner wall of the welding frame 3. A pressure plate 33 is slidably connected to the inner wall of the sliding hole frame 30. A push plate 37 is hinged to the bottom of the pressure plate 33. The face-changing component 15 includes a baffle 44. A bidirectional electric rod 43 is fixedly connected to the surface of the baffle 44. A bent rod 49 is fixedly connected to the telescopic end of the bidirectional electric rod 43. A clamping plate 45 is fixedly connected to the end of the bent rod 49 away from the bidirectional electric rod 43.

[0023] The bottom of the welding frame 3 is fixedly connected to the base plate 1, the top of the base plate 1 is fixedly connected to the unloading plate 2, the top of the base plate 1 is fixedly connected to the support plate 12, the inner wall of the welding frame 3 is equipped with a Y-axis slide rail 6, the surface of the Y-axis slide rail 6 is slidably connected to the drive device 1 7, the surface of the drive device 1 7 is fixedly connected to the X-axis slide rail 8, the surface of the X-axis slide rail 8 is slidably connected to the drive device 2 10, the surface of the drive device 2 10 is equipped with a lifting device 9, the bottom of the lifting device 9 is equipped with a laser welder 11, and a battery tray 5 is set above the loading plate 20.

[0024] The top of the support plate 12 is fixedly connected to the bottom of the feed plate 20, the end of the feed plate 20 extends to the outer end of the welding frame 3, and the Y-axis slide rail 6 is located inside the welding frame 3.

[0025] The feeding component 13 includes a tripod 27, the end of which is fixedly connected to the surface of the power frame 25. An extension plate 21 is fixedly connected to the top of the power frame 25, and a slant frame 22 is fixedly connected to the top of the extension plate 21. Multiple rollers 23 are rotatably connected to the inner wall of the slant frame 22. A through hole 26 is provided on the top of the feeding plate 20. The steel conveyor belt 24 pushes the battery tray 5 into the welding frame 3 for welding. The slant frame 22 is provided on the top of the extension plate 21, and the battery tray 5 is positioned using two slant frames 22. The middle limit is designed to prevent the battery tray 5 from falling off due to tilting during loading. The end of the inclined trough frame 22 away from the unloading plate 2 is set to be far apart from each other, so the end of the inclined trough frame 22 has an inclined surface. When the battery tray 5 moves with the steel belt conveyor 24, the battery tray 5 will be pushed back to the center by the inclined surface of the inclined trough frame 22. The inclined trough frame 22 is equipped with multiple rollers 23. The rollers 23 are used to assist the movement of the battery tray 5, prevent the battery tray 5 from getting stuck due to friction, and thus improve the stability of the battery tray 5 during loading.

[0026] There are two power frames 25, which are symmetrically arranged around the material plate 20. The surface of the steel belt 24 extends to the outer end of the power frame 25, and the top of the steel belt 24 contacts the bottom of the battery tray 5. The surface of the roller 23 extends to the outer end of the inclined chute 22. There are two inclined chute 22, which are symmetrically arranged around the material plate 20, and the ends of the two inclined chute 22 that are away from the unloading plate 2 are set away from each other.

[0027] The detachment component 14 includes a hydraulic rod 35. The bottom of the hydraulic rod 35 is fixedly connected to the top of the base plate 1. A connecting block 36 is fixedly connected to the top of the hydraulic rod 35. A detachment plate 34 is fixedly connected to the top of the connecting block 36. A connecting plate 31 is fixedly connected to the surface of the connecting block 36. A cylindrical rod 32 is fixedly connected to the end of the connecting plate 31 away from the connecting block 36. The surface of the cylindrical rod 32 is rotatably connected to the bottom of the push plate 37. The hydraulic rod 35 pushes the detachment plate 34 upward. When the detachment plate 34 moves upward, it pushes the battery tray 5 upward. The steel conveyor belt 24 is separated to prevent instability during welding operations on top of the battery tray 5. When the connecting block 36 moves, it pushes the cylindrical rod 32 through the connecting plate 31. When the cylindrical rod 32 moves, it pushes the pressure plate 33 out of the outer end of the sliding hole frame 30 through the push plate 37. At this time, the pressure plate 33 will be above the battery tray 5. After the top of the battery tray 5 contacts the bottom of the pressure plate 33, the hydraulic rod 35 and the pressure plate 33 cooperate to clamp the battery tray 5, thereby squeezing and fixing the battery tray 5.

[0028] There are two connecting plates 31, which are symmetrically arranged with the release plate 34 as the center. The surface of the release plate 34 is in contact with the inner wall of the through hole 26. There are four sliding hole frames 30, which are arranged in two groups. There are two sliding hole frames in each group. The two groups of sliding hole frames 30 are symmetrically arranged with the feed plate 20 as the center. The two sliding hole frames 30 are symmetrically arranged with the connecting plate 31 as the center. The push plate 37 is inclined.

[0029] The face-changing component 15 includes a stabilizer 42. A telescopic rod 47 is rotatably connected to the end of the stabilizer 42. A mounting bracket 46 is fixedly connected to the end of the telescopic rod 47 away from the stabilizer 42. The end of the mounting bracket 46 away from the telescopic rod 47 is fixedly connected to the surface of the baffle 44. A power unit 48 is installed inside the stabilizer 42. The end of the telescopic rod 47 near the stabilizer 42 is fixedly connected to the output end of the power unit 48. An electric rod 50 is fixedly connected to the end of the stabilizer 42. The telescopic end of the electric rod 50 is fixedly connected to the surface of the mounting bracket 46. A groove 40 is formed on the inner wall of the welding frame 3. A cylinder 41 is fixedly connected to the top of the inner wall of the groove 40. The bottom of the cylinder 41 is connected to the stabilizer 42. The top is fixedly connected, and the bidirectional electric rod 43 pushes the two clamping plates 45 to move closer to each other to clamp the battery tray 5. After clamping, the hydraulic rod 35 moves downward, and the release plate 34 and pressure plate 33 separate from the battery tray 5 as the hydraulic rod 35 moves downward. The start cylinder 41 pulls the stabilizer 42 to slide upward inside the slide groove 40. The position of the battery tray 5 is adjusted by the cylinder 41. After adjustment, the power unit 48 is started to drive the telescopic rod 47 to rotate. When the telescopic rod 47 rotates, it drives the baffle 44 and clamping plate 45 to rotate through the mounting frame 46. When the clamping plate 45 rotates, it drives the battery tray 5 to rotate, thereby performing the flipping operation of the battery tray 5.

[0030] The surface of the stabilizer 42 is slidably connected to the inner wall of the slide 40, the telescopic end of the bidirectional electric rod 43 extends to the outer end of the baffle 44, and the two clamping plates 45 are symmetrically arranged with the baffle 44 as the center.

[0031] In use, after the worker places the battery tray 5 above the loading plate 20, the bottom of the battery tray 5 will contact the top of the steel conveyor belt 24. When the steel conveyor belt 24 is started, it will push the battery tray 5 into the welding frame 3 for welding. An inclined chute 22 is provided at the top of the extension plate 21. Two inclined chute 22s are used to center and limit the battery tray 5, preventing it from falling off due to tilting during loading. The ends of the inclined chute 22s away from the unloading plate 2 are set apart, thus having an inclined surface. When the battery tray 5 moves with the steel conveyor belt 24, it will be centered and reset by the pushing force of the inclined surface of the inclined chute 22. Multiple rollers 23 are provided inside the inclined chute 22. The movement of the battery tray 5 is assisted by the roller 23 to prevent the battery tray 5 from getting stuck due to friction, thereby improving the stability of the battery tray 5 during loading. After the battery tray 5 enters the interior of the welding frame 3, the lifting device 9 pushes the laser welder 11 downward to push the laser welder 11 into the interior of the battery tray 5 for welding. The drive device 1 7 moves back and forth on the surface of the Y-axis slide rail 6 during operation, while the drive device 2 10 moves back and forth on the surface of the X-axis slide rail 8 during operation, thereby quickly adjusting the position of the laser welder 11 and improving the welding efficiency of the battery tray 5. After welding is completed, the steel belt conveyor 24 pushes the battery tray 5 to the top of the unloading plate 2 to complete the unloading, so that the battery tray 5 can be continuously welded. After the steel conveyor belt 24 pushes the battery tray 5 into the inside of the welding frame 3, the hydraulic rod 35 is activated to start the extension operation. The hydraulic rod 35 pushes the release plate 34 to move upward. When the release plate 34 moves upward, it pushes the battery tray 5 upward and separates it from the steel conveyor belt 24, so as to avoid the battery tray 5 being unstable when welding on top of the steel conveyor belt 24. When the connecting block 36 moves, it pushes the cylindrical rod 32 to move through the connecting plate 31. When the cylindrical rod 32 moves, it pushes the pressure plate 33 out of the outer end of the sliding hole frame 30 through the push plate 37. At this time, the pressure plate 33 will be above the battery tray 5. When the top of the battery tray 5 contacts the bottom of the pressure plate 33, the hydraulic rod 35 and the pressure plate 33 cooperate to clamp the battery tray 5, thereby squeezing and fixing the battery tray 5, improving the stability of the battery tray 5 during welding and preventing the battery tray 5 from shaking during welding. After the internal welding of the battery tray 5 is completed, the electric rod 50 is activated to push the baffle 44 into contact with the end of the battery tray 5. At this time, when the bidirectional electric rod 43 is activated to start the retraction operation, the bidirectional electric rod 43 will push the two clamping plates 45 to move closer to each other to clamp the battery tray 5. After clamping is completed, the hydraulic rod 35 moves downward, and the release plate 34 and the pressure plate 33 separate from the battery tray 5 as the hydraulic rod 35 moves downward. The cylinder 41 is activated to pull the stabilizer 42 to slide upward inside the slide groove 40. The position of the battery tray 5 is adjusted by the cylinder 41. After the adjustment is completed, the power unit 48 is activated to drive the telescopic rod 47 to rotate. 47 During rotation, the mounting bracket 46 drives the baffle 44 and clamping plate 45 to rotate. When the clamping plate 45 rotates, it drives the battery tray 5 to rotate, thereby performing a flipping operation on the battery tray 5. After the flipping is completed, the cylinder 41 pushes it to reset. Then, the hydraulic rod 35 rises to clamp the flipped battery tray 5. The flipping of the battery tray 5 is convenient. After the welding operation of the battery tray 5 is completed, the hydraulic rod 35 moves downward. The release plate 34 moves downward with the hydraulic rod 35, causing the battery tray 5 to move downward, so that the welded battery tray 5 contacts the top of the steel belt conveyor 24. The battery tray 5 is then transported out by the steel belt conveyor 24. The linkage clamping structure simplifies the process flow. When the steel belt conveyor pallet 5 is in place, a single hydraulic rod 35 simultaneously lifts and removes the steel belt conveyor belt 24 and presses down the pressure plate 33 for bidirectional locking. Single-sided laser welding is completed. The hydraulic rod 35 drives the clamping structure to release the component 14, unlocking and resetting it. The flipping component 15 extends and clamps the pallet 5. The cylinder 41 lifts and rotates the pallet 180° within the cavity. The hydraulic rod 35 lifts and locks again to complete the reverse welding. This combines the original multi-step independent positioning action into a single power synchronous execution, resulting in stronger positioning rigidity, a more compact process, and effectively shortening the welding cycle time of a single piece, thus improving the continuous production efficiency of the equipment.

[0032] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A welding device for a battery tray in a new energy vehicle, comprising a welding frame (3), wherein an observation glass (4) is mounted on the surface of the welding frame (3), characterized in that, Also includes: The feeding component (13) includes a feeding plate (20), both ends of which are fixedly connected to a power frame (25), and a steel belt conveyor (24) is provided inside the power frame (25). The detachment component (14) includes a sliding hole frame (30) and a connecting block (36). The end of the sliding hole frame (30) is fixedly connected to the inner wall of the welding frame (3). A pressure plate (33) is slidably connected to the inner wall of the sliding hole frame (30). A push plate (37) is hinged to the bottom of the pressure plate (33). A detachment plate (34) is fixedly connected to the top of the connecting block (36). A linkage plate (31) is fixedly connected to the surface of the connecting block (36). A cylindrical rod (32) is fixedly connected to the end of the linkage plate (31) away from the connecting block (36). The face-changing component (15) includes a baffle (44), a bidirectional electric rod (43) is fixedly connected to the surface of the baffle (44), a bent rod (49) is fixedly connected to the telescopic end of the bidirectional electric rod (43), and a clamping plate (45) is fixedly connected to the end of the bent rod (49) away from the bidirectional electric rod (43).

2. The welding device for a battery tray in a new energy vehicle according to claim 1, characterized in that: The bottom of the welding frame (3) is fixedly connected to a base plate (1), the top of the base plate (1) is fixedly connected to a discharge plate (2), the top of the base plate (1) is fixedly connected to a support plate (12), the inner wall of the welding frame (3) is equipped with a Y-axis slide rail (6), the surface of the Y-axis slide rail (6) is slidably connected to a drive device (7), the surface of the drive device (7) is fixedly connected to an X-axis slide rail (8), the surface of the X-axis slide rail (8) is slidably connected to a drive device (10), the surface of the drive device (10) is equipped with a lifting device (9), the bottom of the lifting device (9) is equipped with a laser welder (11), and a battery tray (5) is provided above the loading plate (20).

3. The welding device for a battery tray in a new energy vehicle according to claim 2, characterized in that: The top of the support plate (12) is fixedly connected to the bottom of the feeding plate (20), the end of the feeding plate (20) extends to the outer end of the welding frame (3), and the Y-axis slide rail (6) is located inside the welding frame (3).

4. The welding device for a battery tray in a new energy vehicle according to claim 3, characterized in that: The feeding component (13) includes a tripod (27), the end of which is fixedly connected to the surface of the power frame (25), the top of the power frame (25) is fixedly connected to an extension plate (21), the top of the extension plate (21) is fixedly connected to a sloping groove frame (22), the inner wall of the sloping groove frame (22) is rotatably connected to multiple rollers (23), and the top of the feeding plate (20) is provided with a through hole (26).

5. The welding device for a battery tray in a new energy vehicle according to claim 4, characterized in that: There are two power racks (25), and the two power racks (25) are arranged symmetrically around the upper plate (20). The surface of the steel belt (24) extends to the outer end of the power rack (25), and the top of the steel belt (24) contacts the bottom of the battery tray (5). The surface of the roller (23) extends to the outer end of the inclined trough frame (22). There are two inclined trough frames (22), and the two inclined trough frames (22) are arranged symmetrically around the upper plate (20). The ends of the two inclined trough frames (22) away from the unloading plate (2) are arranged away from each other.

6. The welding device for a battery tray in a new energy vehicle according to claim 5, characterized in that: The disengagement component (14) includes a hydraulic rod (35), the bottom of which is fixedly connected to the top of the base plate (1), the top of which is fixedly connected to the bottom of the connecting block (36), and the surface of the cylindrical rod (32) is rotatably connected to the bottom of the push plate (37).

7. The welding device for a battery tray in a new energy vehicle according to claim 6, characterized in that: There are two connecting plates (31), which are symmetrically arranged with the release plate (34) as the center. The surface of the release plate (34) is in contact with the inner wall of the through hole (26). There are four sliding hole frames (30), which are arranged in two groups. Each group has two sliding hole frames. The two groups of sliding hole frames (30) are symmetrically arranged with the feed plate (20) as the center. The two sliding hole frames (30) are symmetrically arranged with the connecting plate (31) as the center. The push plate (37) is inclined.

8. A welding device for a battery tray in a new energy vehicle according to claim 7, characterized in that: The face-changing component (15) includes a stabilizer (42), with a telescopic rod (47) rotatably connected to the end of the stabilizer (42). A mounting bracket (46) is fixedly connected to the end of the telescopic rod (47) away from the stabilizer (42). The end of the mounting bracket (46) away from the telescopic rod (47) is fixedly connected to the surface of the baffle (44). A power device (48) is installed inside the stabilizer (42). The end of the telescopic rod (47) near the stabilizer (42) is fixedly connected to the output end of the power device (48). An electric rod (50) is fixedly connected to the end of the stabilizer (42). The telescopic end of the electric rod (50) is fixedly connected to the surface of the mounting bracket (46). A groove (40) is provided on the inner wall of the welding frame (3). A cylinder (41) is fixedly connected to the top of the inner wall of the groove (40). The bottom of the cylinder (41) is fixedly connected to the top of the stabilizer (42).

9. A welding device for a battery tray in a new energy vehicle according to claim 8, characterized in that: The surface of the stabilizer (42) is slidably connected to the inner wall of the slide groove (40), the telescopic end of the bidirectional electric rod (43) extends to the outer end of the baffle (44), and the two clamping plates (45) are symmetrically arranged with the baffle (44) as the center.

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