Flexible welding clamp for battery tray of new energy automobile

Abstract

The invention provides a flexible welding fixture for a battery tray of a new energy automobile, which relates to the technical field of battery trays and is characterized in that a to-be-welded battery tray is placed on a first semicircular block on the top surface of a bearing plate, each arc-shaped block automatically adapts to the bottom outline of the tray through a multi-section rotation characteristic, and a spring rod adaptively stretches out and draws back due to the weight of the tray to buffer impact force; then a cross-shaped nut at the top end of a threaded rod is rotated, the threaded rod is driven to rotate, a transverse plate drives a vertical plate to vertically descend along an open groove, downward pressure is continuously applied, so that a rotating rod drives second connecting rods on the two sides to swing around a first fixing base, and meanwhile a bolt in an operation table is driven to rotate in the threaded groove and move downwards along threads; the bolts move downwards to drive the mounting disc in the base box to move downwards synchronously, fixing rods on the peripheral side of the mounting disc move downwards along with the mounting disc to generate angle swing, a second mounting base and a first connecting rod pull a mounting block and a sliding block at the top end to slide along a through groove and a sliding groove, and a plurality of sliding plates and bearing structures above are made to be close to each other.

Description

Technical Field

[0001] This invention belongs to the field of battery tray technology, and more specifically, relates to a flexible welding fixture for a new energy vehicle battery tray. Background Technology

[0002] The flexible welding fixture for new energy vehicle battery trays is a high-precision positioning and clamping device specifically designed for the welding process of new energy vehicle battery trays. It can flexibly adapt to products of various specifications and models. Its core essence is to replace the traditional single-specification dedicated welding fixtures through modular design, adjustable mechanisms and digital control technology. Without the need for major modification or replacement of the fixture body, it can quickly achieve positioning benchmark calibration, welding posture fixation and welding process stability of battery trays of different sizes and structures. Ultimately, it provides high-precision, high-compatibility and high-efficiency tooling support for automated and semi-automated welding processes.

[0003] A flexible welding fixture for new energy vehicle battery trays has been found to have at least the following technical problems:

[0004] Firstly, the adaptability is obviously limited. Traditional fixtures are mostly single-specification special-purpose structures that can only match pallets of specific sizes or fixed structures. When producing pallets of different models and bottom contours, the fixtures need to be replaced as a whole or major modifications need to be made. This not only increases the cost of equipment investment, but also leads to excessively long production changeover cycles, which seriously restricts the improvement of production efficiency.

[0005] Secondly, the positioning accuracy and stability are insufficient. The support and positioning mechanisms of traditional clamps mostly adopt rigid designs and lack multi-stage adaptive adjustment capabilities. They cannot accurately fit the complex bottom contour of the pallet and lack an effective buffer structure. The impact force when the pallet is placed can easily cause positioning deviation, which in turn leads to defects such as misalignment and missing welds during the welding process, reducing the product qualification rate.

[0006] Third, the ease of operation is poor. The clamping and disassembly of the existing fixtures often require the adjustment of multiple independent components in steps, which makes the operation process cumbersome, requires high professional skills from the operators, increases the intensity of manual labor, and the fixture resets slowly after welding, which further affects the production cycle.

[0007] Fourth, the lack of targeted auxiliary functions means that the high temperature generated during the welding process can easily cause thermal deformation of the battery tray, and welding slag and spatter can easily adhere to the weld area, affecting the welding strength and appearance quality. Traditional fixtures generally do not integrate efficient heat dissipation and slag removal modules, making it difficult to solve the above problems and limiting further optimization of welding quality. Summary of the Invention

[0008] To address the aforementioned technical problems, this invention provides a flexible welding fixture for a new energy vehicle battery tray.

[0009] A flexible welding fixture for a new energy vehicle battery tray, comprising:

[0010] A base box has a limiting plate fixedly installed on its top surface. Operating platforms are provided on both sides of the limiting plate. The bottom surfaces of both operating platforms are fixedly connected to the inner bottom surface of the base box. Multiple sliding grooves are evenly distributed on the top surfaces of both operating platforms. Multiple sliding plates are slidably installed on the top surfaces of both operating platforms, each sliding plate being located above a corresponding sliding groove. A placement block is fixedly installed on one side of the top surface of each sliding plate. A bearing plate is slidably installed on the opposite side of each placement block. A first semi-circular block is fixedly installed on the top surface of each bearing plate. Two second semi-circular blocks are rotatably installed on one side of each of the first semi-circular blocks. Two third semi-circular blocks are rotatably installed on one side of each of the second semi-circular blocks. Two heart-shaped blocks are rotatably installed on one side of each of the third semi-circular blocks.

[0011] An opening groove is formed inside a limiting plate. A vertical plate is provided inside the opening groove. A horizontal plate is fixedly installed on the top surface of the vertical plate. A threaded rod is rotatably installed on one side of the top surface of the limiting plate. The outer wall of the threaded rod is threadedly connected to the inner side of the horizontal plate. A sliding rod is fixedly installed on the other side of the top surface of the limiting plate. The outer wall of the sliding rod is slidably connected to the inner side of the horizontal plate.

[0012] Two sets of adjustment components are respectively installed in two operating tables and are used to adjust multiple sliding plates to move closer or further apart from each other;

[0013] A lifting assembly is located below the base box.

[0014] Preferably, the adjustment component includes multiple through slots, each of which is formed inside one side of the base box. Each of the multiple through slots is connected to a corresponding sliding groove. Each of the multiple sliding grooves has a slider slidably installed inside it. The top surface of each of the multiple sliders is fixedly connected to the bottom surface of a corresponding sliding plate. Each of the multiple sliders has a mounting block fixedly installed on its bottom surface. Each of the multiple mounting blocks is located in a corresponding through slot, and each of the multiple mounting blocks has a first mounting seat fixedly installed on its bottom surface.

[0015] Preferably, the adjustment assembly further includes a mounting plate, which is disposed on one side of the bottom surface of the base box. Multiple fixing rods are fixedly installed on the periphery of the mounting plate. A second mounting seat is rotatably installed at one end of each of the multiple fixing rods. A first connecting rod is fixedly installed on one side of each of the multiple second mounting seats. One end of each of the multiple first connecting rods is rotatably connected to a corresponding mounting block.

[0016] Preferably, each of the plurality of through slots is provided with a reset spring, one end of each of the plurality of reset springs is fixedly connected to one side of the inside of the through slot, and the other end of each of the plurality of reset springs is fixedly connected to one side of the corresponding mounting block.

[0017] Preferably, the lifting assembly includes two first fixed seats, which are respectively fixedly installed on the bottom surfaces of two mounting plates. A second connecting rod is rotatably installed in each of the two first fixed seats. A second fixed seat is fixedly installed on the opposite side of each of the two second connecting rods. A common rotating rod is rotatably installed between the two second fixed seats. Threaded grooves are provided in both operating platforms. Bolts are threaded into both threaded grooves. The bottom ends of the two bolts pass through the interior of the base box and are rotatably connected to the top surface of the corresponding mounting plate.

[0018] Preferably, the lifting assembly further includes a connecting groove, which is opened inside the base box and located below the opening groove. The connecting groove is connected to the opening groove. The bottom end of the upright plate passes through the opening groove and the connecting groove and contacts the outer side wall of the rotating rod. A cross-shaped nut is fixedly installed at the top end of the threaded rod.

[0019] Preferably, multiple circular grooves are formed on one side of the top surface of the multiple bearing plates, and the multiple circular grooves are respectively located on one side of the multiple heart-shaped blocks. Air jet nozzles are fixedly installed in the multiple circular grooves. High-pressure air tanks are fixedly installed on the other side of the top surface of the multiple sliding plates. Diverter pipes are fixedly installed on the top surface of the multiple high-pressure air tanks. Multiple ends of the multiple diverter pipes are fixedly connected to the bottom surface of the corresponding air jet nozzles.

[0020] Preferably, a spring rod is fixedly installed on the top surface of each of the plurality of sliding plates. The spring rod is located between the placement block and the high-pressure gas tank, and the top ends of the plurality of spring rods are respectively fixedly connected to the bottom surface of the corresponding bearing plate.

[0021] Preferably, multiple heat dissipation boxes are fixedly installed on the top periphery of both operating platforms. Each of the multiple heat dissipation boxes has an air vent on one side opposite to the other. A condenser plate is fixedly installed on one side inside each of the multiple heat dissipation boxes. The multiple condenser plates are located on one side of the air vent. A condenser is fixedly installed on the other side inside each of the multiple heat dissipation boxes. The multiple condensers are electrically connected to the corresponding condenser plates.

[0022] Preferably, multiple support legs are fixedly installed on the bottom surface of the base box.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] Through the multi-segment rotation characteristics of the first semicircular block, the second semicircular block, the third semicircular block and the heart-shaped block, it can automatically adapt to new energy vehicle battery trays of different sizes and bottom contours. Combined with the adaptive telescopic buffer design of the spring rod, it can meet the welding needs of multiple specifications of trays without changing special fixtures, greatly reducing equipment investment costs and improving production adaptability.

[0025] By utilizing the linkage structure of the threaded rod, upright plate, rotating rod and adjusting components, the lateral convergence limit of the sliding plate and the longitudinal pressing and positioning of the upright plate are achieved. Combined with the guiding effect of the slider and the groove, the pallet is kept horizontal and stable during the welding process, effectively avoiding problems such as welding misalignment and missed welding caused by positioning deviation, and significantly improving welding accuracy and product qualification rate.

[0026] The clamping and loosening of the tray can be completed by rotating the cross-shaped nut. The adjustment process is synchronized and the action is smooth. With the automatic return function of the return spring, the fixture can be quickly reset after welding, which greatly shortens the clamping and disassembly time. The overall structure design is simple and the operation logic is clear. No complicated professional skills are required to get started, reducing the intensity of manual labor.

[0027] The system integrates a dual-function module for heat dissipation and slag removal. During welding, the condenser drives the condenser plate to blow low-temperature airflow into the work area to quickly remove welding heat and prevent the tray from deforming due to high temperature. At the same time, the high-pressure air tank blows the weld seam in a directional manner through the jet nozzle to remove welding slag and spatter in a timely manner, so as to avoid impurities affecting the welding strength and further optimize the welding quality. Attached Figure Description

[0028] Figure 1 This is one of the overall structural schematic diagrams of the present invention;

[0029] Figure 2 This is the second schematic diagram of the overall structure of the present invention;

[0030] Figure 3 This is a schematic diagram of the bottom structure of the present invention;

[0031] Figure 4 This is a schematic diagram of the internal structure of the heat sink of the present invention;

[0032] Figure 5 This is a schematic diagram of the adjustment component structure of the present invention;

[0033] Figure 6 This is a schematic diagram of the lifting component structure of the present invention;

[0034] Figure 7 This is the present invention. Figure 5 Enlarged structural diagram at point A in the middle;

[0035] Figure 8 This is the present invention. Figure 6Enlarged structural diagram at point B.

[0036] In the diagram, the correspondence between the component names and the attached drawing numbers is as follows: 1. Base box; 2. Operating table; 3. Slide groove; 4. Heat sink; 5. Horizontal plate; 6. Vertical plate; 7. Threaded rod; 8. Slide rod; 9. Opening slot; 10. Condensing plate; 11. Condenser; 12. Sliding plate; 13. Sliding block; 14. Mounting block; 15. Return spring; 16. First mounting seat; 17. First connecting rod; 18. Mounting plate; 19. Fixing rod; 20. Second mounting seat; 21. Bolt; 22. First fixing seat; 23. Second connecting rod; 24. Limiting plate; 25. Placement block; 26. Bearing plate; 27. First semi-circular block; 28. Second semi-circular block; 29. ​​Third semi-circular block; 30. Heart-shaped block; 31. Jet nozzle; 32. High-pressure gas tank; 33. Diverter pipe; 34. Spring rod; 35. Second fixing seat; 36. Rotating rod. Detailed Implementation

[0037] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0038] Please see Figures 1-8 This invention provides a flexible welding fixture for a new energy vehicle battery tray, comprising:

[0039] A base box 1 has a limiting plate 24 fixedly installed on its top surface. Operating platforms 2 are provided on both sides of the limiting plate 24. The bottom surfaces of both operating platforms 2 are fixedly connected to the inner bottom surface of the base box 1. Multiple sliding grooves 3 are evenly distributed on the top surfaces of both operating platforms 2. Multiple sliding plates 12 are slidably installed on the top surfaces of both operating platforms 2, each located above a corresponding sliding groove 3. A placement block 25 is fixedly installed on one side of the top surface of each sliding plate 12. A bearing plate 26 is slidably installed on the opposite side of each placement block 25. A first semi-circular block 27 is fixedly installed on the top surface of each bearing plate 26. Two second semi-circular blocks 27 are rotatably installed on one side of each first semi-circular block 27. Block 28, two third semicircular blocks 29 are rotatably installed on one side of each of the multiple second semicircular blocks 28, and two heart-shaped blocks 30 are rotatably installed on one side of each of the multiple third semicircular blocks 29; Opening slot 9, the opening slot 9 is opened in the limiting plate 24, a vertical plate 6 is provided in the opening slot 9, a horizontal plate 5 is fixedly installed on the top surface of the vertical plate 6, a threaded rod 7 is rotatably installed on one side of the top surface of the limiting plate 24, the outer side wall of the threaded rod 7 is threadedly connected to the inner side of the horizontal plate 5, and a sliding rod 8 is fixedly installed on the other side of the top surface of the limiting plate 24, the outer side wall of the sliding rod 8 is slidably connected to the inner side of the horizontal plate 5; Two sets of adjustment components, the two sets of adjustment components are respectively set in the two operating tables 2, and are used to adjust the multiple sliding plates 12 to move closer or further apart from each other;The lifting assembly is located below the base box 1. In the initial state of this flexible welding fixture for new energy vehicle battery trays, the sliding plate 12 is supported on the slide groove 3 of the operating table 2 by the slider 13. The return spring 15 maintains a natural extension and retraction state. The first semi-circular block 27, the second semi-circular block 28, the third semi-circular block 29, and the heart-shaped block 30 naturally unfold. The bearing plate 26 is suspended on one side of the placement block 25 by the spring rod 34. The horizontal plate 5 drives the vertical plate 6 to be in a high position within the opening groove 9 of the limiting plate 24. The condenser 11 and the high-pressure gas tank 32 of the heat dissipation box 4 are in a standby state. The support legs at the bottom of the base box 1 ensure the stability of the overall structure. The battery tray to be welded is placed on the first semi-circular block 27 on the top surface of the bearing plate 26. Each arc block automatically adapts to the bottom contour of the tray through multi-segment rotation characteristics. The spring rod 34 extends and retracts adaptively due to the weight of the tray to buffer the impact force. Then, the cross-shaped nut at the top of the threaded rod 7 is rotated, causing the threaded rod 7 to rotate. Since the horizontal plate 5 and the threaded rod 7 are threaded together... Guided and limited by the sliding rod 8, the horizontal plate 5 drives the vertical plate 6 to descend vertically along the opening groove 9. When the bottom end of the vertical plate 6 passes through the connecting groove and contacts the rotating rod 36, it continuously applies downward pressure, causing the rotating rod 36 to drive the second connecting rods 23 on both sides to swing around the first fixed seat 22. At the same time, it drives the bolt 21 in the operating table 2 to rotate in the thread groove and move downward along the thread. The downward movement of the bolt 21 drives the mounting plate 18 in the base box 1 to move downward synchronously. The fixed rods 19 on the periphery of the mounting plate 18 swing at an angle as the mounting plate 18 moves downward. Through the second mounting seat 20 and the first connecting rod 17, the mounting block 14 and the top slider 13 are pulled to slide along the through groove and the sliding groove 3, so that multiple sliding plates 12 and the supporting structure above them approach each other until they are completely matched with the size of the tray. At this time, the return spring 15 is compressed to store elastic potential energy. The vertical plate 6 continues to descend and finely adjusts the supporting height to keep the tray horizontal. Its bottom surface is in close contact with the top surface of the tray to complete the longitudinal positioning. Combined with the lateral limit, the three-dimensional fixation of the tray is achieved.After the welding operation starts, the condenser 11 inside the heat sink 4 is powered on and runs to rapidly cool the condenser plate 10. The condenser plate 10 blows low-temperature airflow into the welding area through the air outlets on the opposite side of the heat sink 4 to prevent the tray from deforming due to high temperature or causing welding defects. At the same time, the high-pressure gas tank 32 delivers high-pressure gas to the jet nozzle 31 on the support plate 26 through the split gas pipe 33 to directionally blow the weld area to remove welding slag and spatter, ensuring welding accuracy. After welding is completed, the cross-shaped nut is rotated in the opposite direction to drive the threaded rod 7 to rotate in the opposite direction. The horizontal plate 5 drives the vertical plate 6 to rise along the slide rod 8. The downward pressure of the vertical plate 6 on the rotating rod 36 disappears. At this time, multiple The return spring 15 releases the compressed elastic potential energy, pushing the corresponding mounting blocks 14 away from each other. The mounting blocks 14, through the first connecting rod 17 and the second mounting base 20, drive the fixing rod 19 and the mounting plate 18 to move upwards synchronously. The upward movement of the mounting plate 18 causes the bolt 21 to experience an upward pulling force and rotate in the opposite direction within the threaded groove. Simultaneously, the mounting blocks 14 drive the slider 13 and the sliding plate 12 to slide along the through groove and the sliding groove 3 to restore the initial distance. Finally, the welded tray is removed upwards. The first semi-circular block 27, the second semi-circular block 28, the third semi-circular block 29, and the heart-shaped block 30 reset under gravity, awaiting the next work cycle.

[0040] This invention provides a flexible welding fixture for a new energy vehicle battery tray, which, in addition to the above-mentioned technical solution, also has the following technical features.

[0041] The adjustment assembly includes multiple through slots, each of which is located inside one side of the base box 1. Each through slot is connected to a corresponding slide groove 3. Each slide groove 3 has a slider 13 slidably installed inside it. The top surface of each slider 13 is fixedly connected to the bottom surface of a corresponding sliding plate 12. Each bottom surface of each slider 13 has a mounting block 14 fixedly installed inside it. Each mounting block 14 is located inside a corresponding through slot, and each bottom surface of each mounting block 14 has a first mounting seat 16 fixedly installed inside it.

[0042] When the positions of multiple sliding plates 12 need to be adjusted, the operator only needs to operate the adjustment device. The adjustment device drives the first mounting base 16 to move, the first mounting base 16 drives the mounting block 14 to slide in the through groove, the mounting block 14 drives the slider 13 to slide in the slide groove 3, and the slider 13 in turn drives the sliding plate 12 to move, thereby realizing the flexible adjustment of the positions of multiple sliding plates 12 to adapt to the welding requirements of different specifications of new energy vehicle battery trays and improve the versatility and practicality of the flexible welding fixture.

[0043] This invention provides a flexible welding fixture for a new energy vehicle battery tray, which, in addition to the above-mentioned technical solution, also has the following technical features.

[0044] The adjustment assembly also includes a mounting plate 18, which is disposed on one side of the bottom surface of the base box 1. Multiple fixing rods 19 are fixedly installed on the periphery of the mounting plate 18. A second mounting seat 20 is rotatably installed on one end of each of the multiple fixing rods 19. A first connecting rod 17 is fixedly installed on one side of each of the multiple second mounting seats 20. One end of each of the multiple first connecting rods 17 is rotatably connected to a corresponding mounting block 14.

[0045] Among them, the fixing rods 19 on the periphery of the mounting plate 18 swing at an angle as the mounting plate 18 moves down. The second mounting base 20 and the first connecting rod 17 pull the mounting block 14 and the top slider 13 to slide along the through groove and slide 3, so that the multiple sliding plates 12 and the supporting structure above them move closer to each other until they are completely matched with the size of the pallet. At this time, the return spring 15 is compressed and stores elastic potential energy. The upright plate 6 continues to descend and finely adjusts the supporting height to keep the pallet horizontal. Its bottom surface is in close contact with the top surface of the pallet to complete the longitudinal positioning. Combined with the lateral limit, the three-dimensional fixation of the pallet is achieved.

[0046] This invention provides a flexible welding fixture for a new energy vehicle battery tray, which, in addition to the above-mentioned technical solution, also has the following technical features.

[0047] Each of the multiple through slots is provided with a reset spring 15. One end of each reset spring 15 is fixedly connected to one side of the inside of the through slot, and the other end of each reset spring 15 is fixedly connected to one side of the corresponding mounting block 14.

[0048] When the upright plate 6 moves the supporting structure to adjust its position, the mounting block 14 slides along the through groove. At this time, the return spring 15 is squeezed by the mounting block 14 and undergoes elastic deformation. After the positioning and clamping of the tray is completed, if a different size tray needs to be replaced, simply control the upright plate 6 to rise. The return spring 15 will release the stored elastic potential energy and push the mounting block 14 to slide in the opposite direction along the through groove. This will cause the sliding plate 12 and the supporting structure to move away from each other and return to the initial state so that the next clamping operation can be performed. This design enables the flexible welding fixture to adapt to the welding needs of new energy vehicle battery trays of different sizes and specifications, improving the versatility and flexibility of the equipment.

[0049] This invention provides a flexible welding fixture for a new energy vehicle battery tray, which, in addition to the above-mentioned technical solution, also has the following technical features.

[0050] The lifting assembly includes two first fixed seats 22, which are respectively fixedly installed on the bottom surfaces of two mounting plates 18. A second connecting rod 23 is rotatably installed in each of the two first fixed seats 22. A second fixed seat 35 is fixedly installed on the opposite side of each of the two second connecting rods 23. A rotating rod 36 is rotatably installed between the two second fixed seats 35. Threaded grooves are opened in both operating platforms 2, and bolts 21 are threaded in both threaded grooves. The bottom ends of the two bolts 21 pass through the interior of the base box 1 and are rotatably connected to the top surface of the corresponding mounting plate 18.

[0051] The cross-shaped nut at the top of the threaded rod 7 is rotated, causing the threaded rod 7 to rotate. Since the horizontal plate 5 is threadedly connected to the threaded rod 7 and guided and limited by the sliding rod 8, the horizontal plate 5 drives the vertical plate 6 to descend vertically along the opening groove 9. When the bottom end of the vertical plate 6 passes through the connecting groove and contacts the rotating rod 36, it continuously applies downward pressure, causing the rotating rod 36 to drive the second connecting rods 23 on both sides to swing around the first fixed seat 22. At the same time, it drives the bolt 21 in the operating table 2 to rotate in the threaded groove and move downward along the thread. The downward movement of the bolt 21 causes the mounting plate 18 in the base box 1 to move downward synchronously.

[0052] This invention provides a flexible welding fixture for a new energy vehicle battery tray, which, in addition to the above-mentioned technical solution, also has the following technical features.

[0053] The lifting assembly also includes a connecting groove, which is opened in the base box 1 and located below the opening groove 9. The connecting groove is connected to the opening groove 9. The bottom end of the upright plate 6 passes through the opening groove 9 and the connecting groove and contacts the outer side wall of the rotating rod 36. A cross-shaped nut is fixedly installed on the top end of the threaded rod 7.

[0054] After welding, the reverse rotation of the cross-shaped nut causes the threaded rod 7 to rotate in the opposite direction. The horizontal plate 5 causes the vertical plate 6 to rise along the slide rod 8. The downward pressure of the vertical plate 6 on the rotating rod 36 disappears. At this time, multiple return springs 15 release the compressed elastic potential energy, pushing the corresponding mounting blocks 14 away from each other. The mounting blocks 14 drive the fixing rod 19 and the mounting plate 18 to move upward synchronously through the first connecting rod 17 and the second mounting seat 20. The upward movement of the mounting plate 18 causes the bolt 21 to be subjected to an upward pulling force and rotate upward in the reverse direction in the threaded groove. At the same time, the mounting blocks 14 drive the slider 13 and the sliding plate 12 to slide along the through groove and the slide groove 3 to restore the initial distance.

[0055] This invention provides a flexible welding fixture for a new energy vehicle battery tray, which, in addition to the above-mentioned technical solution, also has the following technical features.

[0056] Multiple circular grooves are provided on one side of the top surface of multiple bearing plates 26. The multiple circular grooves are located on one side of multiple heart-shaped blocks 30. Air jet nozzles 31 are fixedly installed in the multiple circular grooves. High-pressure air tanks 32 are fixedly installed on the other side of the top surface of multiple sliding plates 12. Diverting air pipes 33 are fixedly installed on the top surface of multiple high-pressure air tanks 32. The multiple ends of the multiple diverting air pipes 33 are fixedly connected to the bottom surface of the corresponding air jet nozzles 31.

[0057] The high-pressure gas tank 32 delivers high-pressure gas to the jet nozzle 31 on the support plate 26 through the diversion gas pipe 33, and blows the weld area in a directional manner to remove welding slag and spatter, ensuring welding accuracy.

[0058] This invention provides a flexible welding fixture for a new energy vehicle battery tray, which, in addition to the above-mentioned technical solution, also has the following technical features.

[0059] A spring rod 34 is fixedly installed on the top surface of multiple sliding plates 12. The spring rod 34 is located between the placement block 25 and the high-pressure gas tank 32. The top ends of the multiple spring rods 34 are respectively fixedly connected to the bottom surface of the corresponding bearing plate 26.

[0060] In this process, the battery tray to be welded is placed on the first semi-circular block 27 on the top surface of the support plate 26. Each arc block automatically adapts to the bottom contour of the tray through multi-segment rotation characteristics. The spring rod 34 extends and retracts adaptively due to the weight of the tray to buffer the impact force.

[0061] This invention provides a flexible welding fixture for a new energy vehicle battery tray, which, in addition to the above-mentioned technical solution, also has the following technical features.

[0062] Multiple heat dissipation boxes 4 are fixedly installed on the top periphery of both operating platforms 2. Each heat dissipation box 4 has an air vent on one side opposite to the other. A condenser plate 10 is fixedly installed on one side inside each heat dissipation box 4. The condenser plates 10 are located on one side of the air vent. A condenser 11 is fixedly installed on the other side inside each heat dissipation box 4. The condenser 11 is electrically connected to the corresponding condenser plate 10.

[0063] Once the welding operation is started, the condenser 11 inside the heat dissipation box 4 is powered on and runs to quickly cool down the condenser plate 10. The condenser plate 10 blows low-temperature airflow to the welding area through the air outlet on the opposite side of the heat dissipation box 4 to prevent the tray from deforming due to high temperature or causing welding defects.

[0064] This invention provides a flexible welding fixture for a new energy vehicle battery tray, which, in addition to the above-mentioned technical solution, also has the following technical features.

[0065] Multiple support legs are fixedly installed on the bottom surface of the base box 1.

[0066] The bottom of each of the support legs is fixedly equipped with anti-slip pads made of rubber, which have a good anti-slip effect and can ensure the stability of the entire flexible welding fixture during operation, preventing the welding accuracy from being affected by equipment shaking.

[0067] Working principle: In the initial state of this flexible welding fixture for new energy vehicle battery trays, the sliding plate 12 is supported on the slide groove 3 of the operating table 2 by the slider 13, and the return spring 15 maintains a natural extension and contraction state. The first semi-circular block 27, the second semi-circular block 28, the third semi-circular block 29, and the heart-shaped block 30 naturally unfold. The bearing plate 26 is suspended on one side of the placement block 25 by the spring rod 34. The horizontal plate 5 drives the vertical plate 6 to be in a high position within the opening groove 9 of the limiting plate 24. The condenser 11 and the high-pressure gas tank 32 of the heat dissipation box 4 are in a standby state. The support legs at the bottom of the base box 1 ensure the stability of the overall structure. The battery tray to be welded is placed on the first semi-circular block 27 on the top surface of the bearing plate 26. Each arc block automatically adapts to the bottom contour of the tray through multi-segment rotation characteristics. The spring rod 34 extends and contracts adaptively due to the weight of the tray to buffer the impact force. Then, the cross-shaped nut at the top of the threaded rod 7 is rotated, causing the threaded rod 7 to rotate. Since the horizontal plate 5 is threadedly connected to the threaded rod 7 and guided by the slider 8, the horizontal plate 5 is rotated. The horizontal plate 5 drives the vertical plate 6 to descend vertically along the opening groove 9. When the bottom end of the vertical plate 6 passes through the connecting groove and contacts the rotating rod 36, it continuously applies downward pressure to make the rotating rod 36 drive the second connecting rods 23 on both sides to swing around the first fixed seat 22. At the same time, it drives the bolt 21 in the operating table 2 to rotate in the thread groove and move downward along the thread. The downward movement of the bolt 21 drives the mounting plate 18 in the base box 1 to move downward synchronously. The fixed rods 19 on the periphery of the mounting plate 18 swing at an angle as the mounting plate 18 moves downward. Through the second mounting seat 20 and the first connecting rod 17, the mounting block 14 and the top slider 13 are pulled to slide along the through groove and the sliding groove 3, so that multiple sliding plates 12 and the supporting structure above them approach each other until they are completely matched with the size of the pallet. At this time, the return spring 15 is compressed to store elastic potential energy. The vertical plate 6 continues to descend and finely adjusts the supporting height to keep the pallet horizontal. Its bottom surface is in close contact with the top surface of the pallet to complete the longitudinal positioning. Combined with the lateral limit, the three-dimensional fixation of the pallet is achieved.

[0068] After the welding operation starts, the condenser 11 inside the heat sink 4 is powered on and runs to rapidly cool the condenser plate 10. The condenser plate 10 blows low-temperature airflow into the welding area through the air outlets on the opposite side of the heat sink 4 to prevent the tray from deforming due to high temperature or causing welding defects. At the same time, the high-pressure gas tank 32 delivers high-pressure gas to the jet nozzle 31 on the support plate 26 through the split gas pipe 33 to directionally blow the weld area to remove welding slag and spatter, ensuring welding accuracy. After welding is completed, the cross-shaped nut is rotated in the opposite direction to drive the threaded rod 7 to rotate in the opposite direction. The horizontal plate 5 drives the vertical plate 6 to rise along the slide rod 8. The downward pressure of the vertical plate 6 on the rotating rod 36 disappears. At this time, multiple The return spring 15 releases the compressed elastic potential energy, pushing the corresponding mounting blocks 14 away from each other. The mounting blocks 14 drive the fixing rod 19 and the mounting plate 18 to move upward synchronously through the first connecting rod 17 and the second mounting seat 20. The upward movement of the mounting plate 18 causes the bolt 21 to be subjected to an upward pulling force and rotate in the opposite direction in the thread groove. At the same time, the mounting blocks 14 drive the slider 13 and the sliding plate 12 to slide along the through groove and the slide groove 3 to restore the initial distance. Finally, the welded tray is taken out upward. The first semicircular block 27, the second semicircular block 28, the third semicircular block 29 and the heart-shaped block 30 are reset under the action of gravity, waiting for the next operation cycle.

[0069] The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and to design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A flexible welding fixture for a battery tray in a new energy vehicle, characterized in that, include: A base box (1) has a limiting plate (24) fixedly installed on its top surface. Operating platforms (2) are provided on both sides of the limiting plate (24). The bottom surfaces of the two operating platforms (2) are fixedly connected to the inner bottom surface of the base box (1). Multiple sliding grooves (3) are evenly distributed on the top surfaces of the two operating platforms (2). Multiple sliding plates (12) are slidably installed on the top surfaces of the two operating platforms (2). The multiple sliding plates (12) are respectively located above the corresponding sliding grooves (3). (12) has a placement block (25) fixedly installed on one side of its top surface. A bearing plate (26) is slidably installed on the opposite side of the multiple placement blocks (25). A first semi-circular block (27) is fixedly installed on the top surface of the multiple bearing plates (26). Two second semi-circular blocks (28) are rotatably installed on one side of the multiple first semi-circular blocks (27). Two third semi-circular blocks (29) are rotatably installed on one side of the multiple second semi-circular blocks (28). Two heart-shaped blocks (30) are rotatably installed on one side of the multiple third semi-circular blocks (29). An opening groove (9) is formed in a limiting plate (24). A vertical plate (6) is provided in the opening groove (9). A horizontal plate (5) is fixedly installed on the top surface of the vertical plate (6). A threaded rod (7) is rotatably installed on one side of the top surface of the limiting plate (24). The outer side wall of the threaded rod (7) is threadedly connected to the inner side of the horizontal plate (5). A sliding rod (8) is fixedly installed on the other side of the top surface of the limiting plate (24). The outer side wall of the sliding rod (8) is slidably connected to the inner side of the horizontal plate (5). Two sets of adjustment components are respectively set in two operating tables (2) and are used to adjust multiple sliding plates (12) to move closer to or further away from each other; A lifting assembly is disposed below the base box (1).

2. The flexible welding fixture for a new energy vehicle battery tray as described in claim 1, characterized in that: The adjustment component includes multiple through slots, each of which is opened on one side inside the base box (1). Each of the multiple through slots is connected to a corresponding sliding groove (3). Each of the multiple sliding grooves (3) has a slider (13) slidably installed inside it. The top surface of each of the multiple sliders (13) is fixedly connected to the bottom surface of the corresponding sliding plate (12). Each of the multiple sliders (13) has a mounting block (14) fixedly installed on its bottom surface. Each of the multiple mounting blocks (14) is located in a corresponding through slot. Each of the multiple mounting blocks (14) has a first mounting seat (16) fixedly installed on its bottom surface.

3. The flexible welding fixture for a new energy vehicle battery tray as described in claim 2, characterized in that: The adjustment assembly also includes a mounting plate (18), which is disposed on one side of the bottom surface of the base box (1). Multiple fixing rods (19) are fixedly installed on the periphery of the mounting plate (18). A second mounting seat (20) is rotatably installed on one end of each of the multiple fixing rods (19). A first connecting rod (17) is fixedly installed on one side of each of the multiple second mounting seats (20). One end of each of the multiple first connecting rods (17) is rotatably connected to a corresponding mounting block (14).

4. The flexible welding fixture for a new energy vehicle battery tray as described in claim 2, characterized in that: Each of the multiple through slots is provided with a reset spring (15), one end of each of the multiple reset springs (15) is fixedly connected to one side of the inside of the through slot, and the other end of each of the multiple reset springs (15) is fixedly connected to one side of the corresponding mounting block (14).

5. The flexible welding fixture for a new energy vehicle battery tray as described in claim 1, characterized in that: The lifting assembly includes two first fixed seats (22), which are respectively fixedly installed on the bottom surface of two mounting plates (18). A second connecting rod (23) is rotatably installed in each of the two first fixed seats (22). A second fixed seat (35) is fixedly installed on the opposite side of each of the two second connecting rods (23). The same rotating rod (36) is rotatably installed between the two second fixed seats (35). Threaded grooves are opened in each of the two operating tables (2). Bolts (21) are threaded in each of the two threaded grooves. The bottom ends of the two bolts (21) pass through the interior of the base box (1) and are rotatably connected to the top surface of the corresponding mounting plate (18).

6. The flexible welding fixture for a new energy vehicle battery tray as described in claim 5, characterized in that: The lifting assembly also includes a connecting groove, which is opened in the base box (1) and located below the opening groove (9). The connecting groove is connected to the opening groove (9). The bottom end of the upright plate (6) passes through the opening groove (9) and the connecting groove and contacts the outer wall of the rotating rod (36). The top end of the threaded rod (7) is fixedly installed with a cross-shaped nut.

7. The flexible welding fixture for a new energy vehicle battery tray as described in claim 1, characterized in that: Multiple circular grooves are provided on one side of the top surface of the multiple bearing plates (26). The multiple circular grooves are located on one side of the multiple heart-shaped blocks (30). A jet nozzle (31) is fixedly installed in each of the multiple circular grooves. A high-pressure gas tank (32) is fixedly installed on the other side of the top surface of the multiple sliding plates (12). A diversion pipe (33) is fixedly installed on the top surface of the multiple high-pressure gas tanks (32). The multiple diversion pipes (33) are fixedly connected at multiple ends to the bottom surface of the corresponding jet nozzle (31).

8. The flexible welding fixture for a new energy vehicle battery tray as described in claim 1, characterized in that: A spring rod (34) is fixedly installed on the top surface of each of the sliding plates (12). The spring rod (34) is located between the placement block (25) and the high-pressure gas tank (32). The top ends of the multiple spring rods (34) are respectively fixedly connected to the bottom surface of the corresponding bearing plate (26).

9. The flexible welding fixture for a new energy vehicle battery tray as described in claim 1, characterized in that: Multiple heat dissipation boxes (4) are fixedly installed on the top periphery of the two operating tables (2). Each of the multiple heat dissipation boxes (4) has an air vent on one side opposite to the other. A condenser plate (10) is fixedly installed on one side inside each of the multiple heat dissipation boxes (4). The multiple condenser plates (10) are located on one side of the air vent. A condenser (11) is fixedly installed on the other side inside each of the multiple heat dissipation boxes (4). The multiple condensers (11) are electrically connected to the corresponding condenser plates (10).

10. The flexible welding fixture for a new energy vehicle battery tray as described in claim 1, characterized in that: The bottom surface of the base box (1) is fixedly equipped with multiple support legs.

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