Three-dimensional parking type tool mold provided with intelligent welding system and used for electric vehicle production

Abstract

The invention relates to the technical field of electric vehicle production, in particular to a three-dimensional parking type tool mold provided with an intelligent welding system and used for electric vehicle production. Comprising a supporting system, a conveying system arranged in the supporting system, a plurality of placing tables conveyed by the conveying system and welding devices symmetrically arranged on the left side and the right side of the conveying system. According to the three-dimensional parking type tool mold provided with the intelligent welding system and used for electric vehicle production, the three-dimensional parking type layout design is adopted, multi-layer parking and automatic circulation of a vehicle frame in a vertical space are achieved through linkage cooperation of the transportation system and the containing table, the space utilization rate of a production site is increased, and the production efficiency is improved. The problem that a traditional plane layout is large in occupied area is solved, meanwhile, multi-station continuous welding operation is supported, the frame can be automatically transferred to different welding stations to complete double-face welding, and the production takt is greatly shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle production, and more specifically, to a three-dimensional parking type tooling die for electric vehicle production equipped with an intelligent welding system. Background Art

[0002] The tooling die for electric vehicle production is a key equipment for manufacturing electric vehicle parts. With high precision, high strength and durability, it ensures the consistency of parts during mass production, and plays a crucial role in improving the production efficiency, reducing costs and ensuring quality of electric vehicles.

[0003] The patent with application number CN202321981243.9 discloses an automatic assembly line for the frame shell of a new energy vehicle, including a continuously arranged conveying base, a conveying frame arranged above the conveying base, and multi-axis robots arranged on both sides of the conveying base. The conveying frame is movably arranged outside the conveying base, and the bottom end of the conveying frame is connected with movable wheels. A hook is telescopically arranged above the conveying frame. By arranging a conveying frame above the conveying base and symmetrically arranging hooks at the top of the conveying frame, the conveying frame can stably and accurately move the frame shell of the new energy vehicle above the conveying base, facilitating the precise assembly and docking of the frame shell of the new energy vehicle with the chassis of the new energy vehicle.

[0004] However, most traditional tooling dies for electric vehicle production adopt a planar layout design, with low space utilization rate, and it is difficult to achieve vertical parking and automatic flow of the vehicle frame, resulting in a large floor area and limited expansion of the production line. In addition, existing equipment generally relies on manual handling and station switching, and cannot support multi-station continuous operation, with a long production cycle. Moreover, during the welding process, it is necessary to frequently manually adjust the angle and position of the vehicle frame, with complex operations and easy introduction of human errors, resulting in poor welding consistency. At the same time, traditional tooling lacks a precise mechanical cooperation locking mechanism, and positioning relies on manual calibration or simple limit devices, and it is easy to shift due to vibration or external force interference, which not only affects the welding accuracy but also increases safety hazards.

[0005] In view of this, we propose a three-dimensional parking type tooling die for electric vehicle production equipped with an intelligent welding system. Summary of the Invention

[0006] The purpose of the present invention is to provide a three-dimensional parking type tooling die for electric vehicle production equipped with an intelligent welding system, and to solve the problems raised in the above background art through the coordinated control of the mechanical structures of the welding device and the placement table.

[0007] To achieve the above purpose, the present invention provides the following technical solutions: A three-dimensional parking tooling die for the production of electric vehicles equipped with an intelligent welding system, comprising a support system, a transportation system arranged inside the support system, a number of placement platforms conveyed by the transportation system, and welding devices symmetrically arranged on the left and right sides of the transportation system; This setting realizes the multi-layer parking and automatic circulation of the vehicle frame in the vertical space through the linkage cooperation of the transportation system and the placement platform, improving the space utilization rate of the production site.

[0008] The support system includes a positioning frame, and a limit groove is opened at the top of the positioning frame; The placement platform includes a placement plate, shaft teeth arranged at both ends of the convex shaft on the bottom surface of the placement plate, a docking part arranged below the shaft teeth, and two limit plates with two guide grooves opened on the top surface. The docking part includes a first lead screw with slots at both ends, a toothed plate meshing with the shaft teeth, and a sliding rod with round rods arranged at the bottom surfaces of both ends; The welding device includes a movable table that can move horizontally, two driving motors arranged on the outer wall of the movable table, and a transmission group arranged inside the movable table. The transmission group includes two transmission shafts driven by the driving motors, and convex rods corresponding to the sliding rods are arranged on the outer wall of the movable table.

[0009] When the movable table approaches the placement platform in this setting, the transmission shaft is inserted into the slot to drive the first lead screw to rotate, and the toothed plate is used to drive the shaft teeth to rotate, so that the placement plate tilts towards the welding device side to adjust the welding angle. At the same time, the convex rod pushes the sliding rod to displace, and after the round rod moves along the trajectory of the guide groove, the limit plate in the moving direction is driven to insert into the limit groove to fix the placement platform.

[0010] In the technical solution of the present invention, the support system further includes a bottom plate and two support frames fixedly connected to the top surface of the bottom plate by bolts, and the positioning frame is fixedly connected to the top surface of the bottom plate by bolts.

[0011] This setting ensures the stability of the placement platform during the welding of the vehicle frame by adding a positioning frame to cooperate with the internal structure of the placement platform.

[0012] In the technical solution of the present invention, the transportation system includes two parallel transportation shafts arranged up and down, transmission discs and chain discs sleeved at both ends of the lower transportation shaft, a chain connected between the upper and lower transportation shafts, a transportation chain sleeved outside the transmission disc, a number of transportation plates arranged inside the transportation chain, a connecting shaft connected between two transportation plates, an annular track sleeved outside the transportation chain and fixedly connected to the inner side of the support frame by bolts, and a transportation motor for driving the upper transportation shaft to rotate. The transportation motor is fixedly connected to the inner support of the support frame by bolts.

[0013] This setting can move the placement platform for placing the vehicle frame from one welding device to another, thereby completing the welding operation on both sides of the vehicle frame.

[0014] In the technical solution of the present invention, the placing table further includes a hanging frame and cover plates fixedly connected to the open ends at the front and rear of the hanging frame by bolts. The hanging frame is sleeved on the outer side of the connecting shaft through brackets at both ends. A plurality of convex frames are welded and fixed on the flat plate at the bottom of the hanging frame. Plate through slots penetrating through the front and rear are formed at both ends of the cover plate at the front end. The placing plate is rotatably connected to the outside of the convex frame on the flat plate at the bottom of the hanging frame through a convex shaft at the bottom, and the shaft gear is fixedly connected to the end of the convex shaft at the bottom of the placing plate through a pin.

[0015] This setting adjusts the inclination angle of the placing plate to cooperate with the welding operation of the vehicle frame. After the plate body inclines towards the welding device side, the welding range of the welding device can be increased.

[0016] In the technical solution of the present invention, the docking part further includes a fixed frame fixedly connected to the flat plate at the bottom of the hanging frame, two first springs sleeved on the outer side of the sliding rod, two symmetrically arranged limiting blocks, and a second spring welded and fixed to the outer side wall of the limiting block. A partition for restricting the moving range of the toothed plate is integrally formed inside the fixed frame. Outer convex plates for providing a sliding range for the limiting blocks are integrally formed on the outer side walls at the left and right ends of the fixed frame, and the other end of the second spring is welded and fixed to the groove wall of the inner sliding groove of the outer convex plate.

[0017] In the technical solution of the present invention, the first lead screw is rotatably connected to the inside of the fixed frame, the sliding rod is slidably connected to the inside of the toothed plate, and two discs are integrally formed on the outer side wall of the sliding rod. One end of the first spring is welded and fixed to the outer side wall of the disc, and the other end abuts against the partition inside the fixed frame.

[0018] This setting is such that when the moving table approaches the placing table, the transmission shaft is inserted into the slot to drive the first lead screw to rotate, and the shaft gear is driven to rotate through the toothed plate, so that the placing plate inclines towards the welding device side to adjust the welding angle.

[0019] In the technical solution of the present invention, the limiting plate is slidably connected to the inside of the flat plate at the bottom of the hanging frame. Two plate surface openings corresponding to the positions of the limiting blocks are further formed on the inner side wall of the limiting plate. The guiding groove is inclined and its inner end is communicated with the inner side wall of the limiting plate. A plurality of pneumatic clamps for fixing the vehicle frame are fixedly connected to the top surface of the limiting plate by bolts.

[0020] This setting is such that after the sliding rod displaces and the round rod moves along the trajectory of the guiding groove, the limiting plate in the moving direction is driven to insert into the limiting groove to fix the placing table, thereby ensuring the stability of the placing table during the welding operation.

[0021] In the technical solution of the present invention, the welding device further includes a connecting frame fixedly connected to the support frame by bolts, two guide rails fixedly connected inside the connecting frame by bolts, and a plurality of cylinders fixedly connected to the inner wall of the connecting frame by bolts. The driving end of the cylinder is fixedly clamped with the bottom bump of the moving table, and a table chute is further opened on the top surface of the moving table.

[0022] In the technical solution of the present invention, the welding device further includes a second lead screw rotatably connected to the outer side walls of the front and rear ends of the moving table, a slider threadedly connected to the outside of the second lead screw and slidably connected inside the table chute, and a welding robot arm fixedly connected to the top surface of the slider by bolts. One end of the second lead screw is coaxially connected to the driving motor.

[0023] This setting enables the cylinder to change the relative position between the moving table and the vehicle frame, and at the same time, makes the sliding rod move through the convex rod, so as to fix the position of the placing table.

[0024] In the technical solution of the present invention, the transmission group further includes two pulley wheels arranged in parallel and rotatably connected to the inner wall of the moving table, a transmission belt sleeved between the two pulley wheels, a plurality of outer convex strips slidably connected to the openings at the ends of the transmission shaft, and a plurality of third springs regularly welded to the inner walls of the outer convex strips. The inner end of the transmission shaft is fixedly clamped inside the pulley wheel, and the other end of the third spring is welded and fixed inside the opening at the end of the transmission shaft. One of the transmission shafts is connected to the driving motor through a gearbox.

[0025] This setting reduces the distribution of electrical components and circuit wires added to the placing table through the cooperation of a plurality of outer convex strips at the end of the transmission shaft and the slot at the end of the first lead screw, thereby reducing the input cost of the overall structure.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The three-dimensional parking type tooling die for the production of electric vehicles equipped with an intelligent welding system adopts a three-dimensional parking type layout design. Through the linkage cooperation of the transportation system and the placing table, multi-layer parking and automatic circulation of the vehicle frame in the vertical space are realized, improving the space utilization rate of the production site and solving the problem of large floor area of the traditional plane layout. At the same time, it supports multi-station continuous welding operations, and the vehicle frame can be automatically transferred to different welding stations to complete double-sided welding, greatly shortening the production cycle.

[0027] 2. The three-dimensional parking tooling die for the production of electric vehicles equipped with an intelligent welding system, through the coordinated control of the mechanical structures of the welding device and the placement table. During the welding process, the transmission group drives the first lead screw to rotate, automatically adjusting the inclination angle of the placement plate to adapt to the welding requirements. At the same time, the limiting plate is accurately inserted into the limiting groove of the positioning frame through the guide groove trajectory, realizing the instantaneous locking of the tooling die, completely replacing manual intervention, not only reducing the operation complexity, but also eliminating the human adjustment error, ensuring the accuracy of the welding angle and position, thereby improving the consistency of welding quality and reducing the safety risks caused by positioning deviation. Description of the Drawings

[0028] Figure 1 Schematic diagram of the overall structure of the present invention; Figure 2 Schematic diagram of the support system in the present invention; Figure 3 Schematic diagram of the positioning frame in the present invention; Figure 4 Schematic diagram of the transportation system in the present invention; Figure 5 Schematic diagram of the vehicle body placement table in the present invention; Figure 6 Exploded schematic diagram of the vehicle body placement table in the present invention; Figure 7 Partial sectional schematic diagram of the vehicle body placement table in the present invention; Figure 8 Schematic diagram of the docking part in the present invention; Figure 9 End structure schematic diagram of the first lead screw in the present invention; Figure 10 Schematic diagram of the limiting block in the present invention; Figure 11 Schematic diagram of the pneumatic clamp in the present invention; Figure 12 Schematic diagram of the welding device in the present invention; Figure 13 Partial sectional schematic diagram of the welding device in the present invention; Figure 14 Schematic diagram of the transmission group in the present invention; Description of the reference numerals: 100, support system; 110, bottom plate; 120, support frame; 130, positioning frame; 131, limiting groove; 200, transportation system; 210, transportation shaft; 220, transmission disc; 230, chain disc; 240, chain; 250, transportation chain; 260, transportation plate; 270, connecting shaft; 280, annular track; 290, transportation motor; 300. Placement table; 310. Hanging frame; 320. Cover plate; 321. Plate surface through groove; 330. Placement board; 340. Axial gear; 350. Docking part; 351. Fixed frame; 3510. Outer convex plate; 352. First lead screw; 3520. Slot; 353. Tooth plate; 354. Slide bar; 3540. Disc; 3541. Round bar; 355. First spring; 356. Limit block; 357. Second spring; 360. Limit plate; 361. Guide groove; 362. Plate surface opening; 370. Pneumatic fixture 400. Welding device; 410. Connecting frame; 420. Guide rail; 430. Cylinder; 440. Moving table; 441. Table surface chute; 442. Convex bar; 450. Second lead screw; 460. Slide block; 470. Driving motor; 480. Welding robotic arm; 490. Transmission group; 491. Pulley; 492. Transmission belt; 493. Transmission shaft; 494. Outer convex strip; 495. Third spring Detailed implementation mode

[0029] Next, the technical solutions in the present invention will be clearly and completely described in conjunction with the accompanying drawings in the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present invention without creative efforts shall fall within the protection scope of the present invention

[0030] Please refer to Figures 1 - 14 As shown in the figure, this embodiment provides a technical solution A three-dimensional parking type tooling die for the production of electric vehicles equipped with an intelligent welding system, including a support system 100, a transportation system 200 arranged inside the support system 100, several placement tables 300 conveyed by the transportation system 200, and welding devices 400 symmetrically arranged on the left and right sides of the transportation system 200 Please refer to Figures 2 - 3 As shown in the figure, in this embodiment, the support system 100 includes a positioning frame 130, and a limit groove 131 is opened at the top of the positioning frame 130

[0031] Specifically, the support system 100 further includes a bottom plate 110 and two support frames 120 fixedly connected to the top surface of the bottom plate 110 by bolts, and the positioning frame 130 is fixedly connected to the top surface of the bottom plate 110 by bolts

[0032] Furthermore, both the bottom plate 110 and the support frame 120 are used to ensure the stability of the fixation of the transportation system 200 and the welding device 400. This setting installs a positioning frame 130 to cooperate with the internal structure of the placement table 300 to ensure the stability of the placement table 300 during the welding of the vehicle frame

[0033] Please refer toFigure 4 As shown in the figure, in this embodiment, the transportation system 200 includes two parallel upper and lower transportation shafts 210, driving discs 220 and chain discs 230 sleeved at both ends of the lower transportation shaft 210, a chain 240 connected between the upper and lower transportation shafts 210, a transportation chain 250 sleeved outside the driving disc 220, a plurality of transportation plates 260 arranged inside the transportation chain 250, a connecting shaft 270 connected between two transportation plates 260, an annular track 280 sleeved outside the transportation chain 250 and fixedly connected to the inner side of the support frame 120 by bolts, and a transportation motor 290 for driving the upper transportation shaft 210 to rotate. The transportation motor 290 is fixedly connected to the inner support of the support frame 120 by bolts.

[0034] Further, start the transportation motor 290 in the transportation system 200. Through the chain disc 230 and the chain 240, drive the two transportation shafts 210 to rotate simultaneously. Then, through the driving disc 220, move the transportation chain 250, and move the placement table 300 for placing the vehicle frame to a position parallel to the welding device 400. This setting can move the placement table 300 for placing the vehicle frame from one welding device 400 to another welding device 400, thereby completing the welding operation on both sides of the vehicle frame.

[0035] Please refer to Figures 5 - 7 As shown in the figure, in this embodiment, the placement table 300 includes a placement plate 330, shaft teeth 340 arranged at both ends of the convex shaft on the bottom surface of the placement plate 330, a docking part 350 arranged below the shaft teeth 340, and two limiting plates 360 with two guiding grooves 361 opened on the top surface.

[0036] Specifically, the placement table 300 further includes a hanging frame 310 and a cover plate 320 fixedly connected to the open front and rear ends of the hanging frame 310 by bolts. The hanging frame 310 is sleeved outside the connecting shaft 270 through the two end brackets. A plurality of convex frames are welded and fixed on the flat bottom plate of the hanging frame 310. Plate through grooves 321 penetrating through the front and rear are opened at both ends of the front cover plate 320. The placement plate 330 is rotatably connected to the outside of the convex frames on the flat bottom plate of the hanging frame 310 through the convex shaft on the bottom surface, and the shaft teeth 340 are fixedly connected to the end of the convex shaft on the bottom surface of the placement plate 330 through a pin.

[0037] Further, after the hanging frame 310 is connected to the connecting shaft 270 in the transportation system 200, the placement plate 330 for placing the vehicle frame can move along with the transportation system 200. The cover plate 320 is used to protect the internal structure of the docking part 350. The plate through grooves 321 are used to provide an interval for the limiting plates 360 to pass through. The placement plate 330 is used to provide a placement platform for the vehicle frame. This setting adjusts the inclination angle of the placement plate 330 to cooperate with the welding operation of the vehicle frame. After the plate body inclines towards the welding device 400, the welding range of the welding device 400 can be increased.

[0038] Please refer to Figures 5 - 9 As shown, in this embodiment, the docking portion 350 includes a first lead screw 352 with slots 3520 at both ends, a toothed plate 353 meshing with the shaft gear 340, and a sliding rod 354 with round rods 3541 at the bottom surfaces of both ends. Specifically, the docking portion 350 further includes a fixed frame 351 clamped and fixed to the bottom flat plate of the hanger 310, two first springs 355 sleeved outside the sliding rod 354, two symmetrically arranged limit blocks 356, and second springs 357 welded and fixed to the outer side walls of the limit blocks 356. A partition for restricting the movement range of the toothed plate 353 is integrally formed inside the fixed frame 351. Outer convex plates 3510 for providing a sliding range for the limit blocks 356 are integrally formed on the outer side walls at the left and right ends of the fixed frame 351. The other ends of the second springs 357 are welded and fixed to the groove walls of the inner chutes of the outer convex plates 3510.

[0039] Furthermore, the first lead screw 352 is rotatably connected to the inside of the fixed frame 351, the sliding rod 354 is slidably connected to the inside of the toothed plate 353. Two discs 3540 are integrally formed on the outer side wall of the sliding rod 354. One end of the first spring 355 is welded and fixed to the outer side wall of the disc 3540, and the other end abuts against the partition inside the fixed frame 351.

[0040] Furthermore, the fixed frame 351 is used to provide a rotation range for the first lead screw 352 and a sliding range for the sliding rod 354. After the first lead screw 352 rotates, it drives the toothed plate 353 to displace, drives the shaft gear 340 to rotate through the toothed plate 353, so that the placement plate 330 inclines towards the welding device 400 side to adjust the welding angle. When the sliding rod 354 moves to the left, both first springs 355 move to the left together with the disc 3540. At this time, the first spring 355 on the right abuts against the partition inside the fixed frame 351 and contracts, increasing its own elastic potential energy, and pushing the sliding rod to move to the right, thereby providing a force for the reset of the sliding rod 354. This setting is such that when the moving table 440 approaches the placement table 300, the transmission shaft 493 is inserted into the slot 3520 to drive the first lead screw 352 to rotate, drives the shaft gear 340 to rotate through the toothed plate 353, so that the placement plate 330 inclines towards the welding device 400 side to adjust the welding angle.

[0041] Please refer to Figures 5 - 11 As shown, in this embodiment, the limit plate 360 is slidably connected to the inside of the bottom flat plate of the hanger 310. Two plate openings 362 corresponding to the positions of the limit blocks 356 are also formed on the inner side wall of the limit plate 360. The guide groove 361 is inclined and its inner end is connected to the inner side wall of the limit plate 360. A plurality of pneumatic clamps 370 for fixing the vehicle frame are fixedly connected to the top surface of the limit plate 360 by bolts.

[0042] Further, the elastic force provided by the second spring 357 will push the limiting block 356 to move outward, causing the end of the limiting block 356 to insert into the inside of the plate surface opening 362, thereby restricting the displacement of the limiting plate 360. This setting, after the displacement of the sliding rod 354 and the circular rod 3541 moving along the track of the guiding groove 361, drives the limiting plate 360 in the moving direction to insert into the limiting groove 131 to fix the placing table 300, thereby ensuring the stability of the placing table 300 during the welding operation.

[0043] Please refer to Figures 12 - 13 As shown, in this embodiment, the welding device 400 includes a movable table 440 that can move horizontally, two driving motors 470 provided on the outer wall of the movable table 440, and a transmission group 490 provided inside the movable table 440.

[0044] Specifically, the welding device 400 further includes a connecting frame 410 fixedly connected to the support frame 120 by bolts, two guide rails 420 fixedly connected inside the connecting frame 410 by bolts, and a plurality of air cylinders 430 fixedly connected to the inner wall of the connecting frame 410 by bolts. The driving end of the air cylinder 430 is fixedly clamped with the convex block on the bottom surface of the movable table 440, and a table surface sliding groove 441 is also provided on the top surface of the movable table 440.

[0045] Further, the welding device 400 further includes a second lead screw 450 rotatably connected to the front and rear outer side walls of the movable table 440 at both ends, a slider 460 threadedly connected to the outside of the second lead screw 450 and slidably connected inside the table surface sliding groove 441, and a welding robot arm 480 fixedly connected to the top surface of the slider 460 by bolts. One end of the second lead screw 450 is coaxially connected to the driving motor 470.

[0046] Further, after the air cylinder 430 is started, it pushes the movable table 440 to move on the guide rail 420, bringing the welding robot arm 480 close to the outside of the vehicle frame. At this time, the sliding rod 354 is pushed by the convex rod 442 to displace inside the fixed frame 351. The welding robot arm 480 is started to perform welding operations on the vehicle frame, and the driving motor 470 on the outside of the second lead screw 450 is controlled to drive the second lead screw 450 to rotate, causing the slider 460 to move in the table surface sliding groove 441, thereby adjusting the relative position between the welding robot arm 480 and the vehicle frame. This setting, while the air cylinder 430 changes the relative position between the movable table 440 and the vehicle frame, moves the sliding rod 354 through the convex rod 442, thereby fixing the position of the placing table 300.

[0047] Please refer to Figures 12 - 14 As shown, in this embodiment, the transmission group 490 includes two transmission shafts 493 driven by the driving motor 470, and a convex rod 442 corresponding to the sliding rod 354 is provided on the outer wall of the movable table 440.

[0048] Specifically, the transmission group 490 further includes two pulleys 491 that are arranged in parallel and rotatably connected to the inner wall of the moving platform 440, a transmission belt 492 sleeved between the two pulleys 491, a number of external convex strips 494 slidably connected to the end opening of the transmission shaft 493, and a number of third springs 495 regularly welded and fixed to the inner wall of the external convex strips 494. The inner end of the transmission shaft 493 is clamped and fixed inside the pulley 491, and the other end of the third spring 495 is welded and fixed inside the end opening of the transmission shaft 493. One of the transmission shafts 493 is connected to the driving motor 470 through a gearbox.

[0049] Further, after another driving motor 470 is started, it drives one of the transmission shafts 493 in the transmission group 490 to rotate, and through the transmission belt 492, the two transmission shafts 493 drive the two first lead screws 352 to rotate simultaneously, thereby driving the toothed plate 353 to displace. This setting reduces the distribution of electrical components and circuit wires added on the placement table 300 through the cooperation between a number of external convex strips 494 at the end of the transmission shaft 493 and the slot 3520 at the end of the first lead screw 352, and thus reduces the input cost of the overall structure.

[0050] Finally, it should be noted that the transport motor 290, pneumatic fixture 370, cylinder 430, driving motor 470, and welding robot arm 480 involved in the present invention are all general standard parts or components known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods. At the idle place of the present device, the transport motor 290, pneumatic fixture 370, cylinder 430, driving motor 470, and welding robot arm 480 are connected to an external power source through wires. The specific connection means should refer to the working principle of the present invention, and the electrical components are electrically connected in accordance with the sequential working order. Their detailed connection means are all well-known technologies in the art.

[0051] When the three-dimensional parking type tooling die for the production of electric vehicles equipped with an intelligent welding system of the present invention is in use, the operator first sends the vehicle frame to be welded into the innermost placement table 300 through an external material transporting device and starts the pneumatic fixture 370 to clamp and fix the vehicle frame. Then, the operator starts the transport motor 290 in the transport system 200. Through the chain sprocket 230 and the chain 240, the two transport shafts 210 are driven to rotate simultaneously. Then, through the transmission disc 220, the transport chain 250 is toggled to move, and the placement table 300 for placing the vehicle frame is moved to a position parallel to the welding device 400. Subsequently, the starting cylinder 430 pushes the moving platform 440 to move on the guide rail 420, bringing the welding robotic arm 480 close to the outer side of the vehicle frame. At this time, the convex rod 442 pushes the sliding rod 354 to displace inside the fixed frame 351, causing the round rod 3541 to move along the trajectory of the guiding groove 361. Further, the limiting plate 360 in the moving direction is driven to pass through the plate surface through slot 321 and then inserted into the limiting slot 131 to fix the placement table 300. At the same time, the two transmission shafts 493 in the transmission group 490 are respectively inserted into the internal slots 3520 at the ends of the two first lead screws 352; After that, the welding robotic arm 480 is started to perform welding operations on the vehicle frame, and the drive motor 470 outside the second lead screw 450 is controlled to drive the second lead screw 450 to rotate, causing the slider 460 to move within the table surface sliding groove 441, thereby adjusting the relative position between the welding robotic arm 480 and the vehicle frame; At the same time, another drive motor 470 is started to drive one of the transmission shafts 493 in the transmission group 490 to rotate. Through the transmission belt 492, the two transmission shafts 493 drive the two first lead screws 352 to rotate simultaneously, driving the toothed plate 353 to displace. The shaft gear 340 is rotated by the toothed plate 353, causing the placement plate 330 to tilt towards the welding device 400 side to adjust the welding angle; Subsequently, the vehicle frame is again moved to the inside of the other welding device 400 through the transportation system 200, and the above operations are repeated to complete the welding operations on the other side of the vehicle frame.

[0052] The foregoing description of the specific exemplary embodiments of the present invention is for purposes of illustration and exemplification. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many changes and variations are possible in light of the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the invention and its practical applications, enabling those skilled in the art to implement and utilize the various different exemplary embodiments of the invention, as well as various different selections and changes. The scope of the invention is intended to be defined by the specification and its equivalents.

Claims

1. A three-dimensional parking tooling die for the production of electric vehicles equipped with an intelligent welding system, comprising a support system, a transportation system arranged inside the support system, a number of placement tables conveyed by the transportation system, and welding devices symmetrically arranged on the left and right sides of the transportation system; It is characterized in that: The support system includes a positioning frame, and a limiting groove is opened at the top end of the positioning frame; The placement table includes a placement plate, shaft teeth arranged at both ends of the convex shaft on the bottom surface of the placement plate, a docking part arranged below the shaft teeth, and two limiting plates with two guiding grooves opened on the top surface. The docking part includes a first lead screw with slots at both ends, a toothed plate meshing with the shaft teeth, and a sliding rod with round rods arranged at the bottom surfaces of both ends; The welding device includes a movable table capable of transverse movement, two driving motors arranged on the outer wall of the movable table, and a transmission group arranged inside the movable table. The transmission group includes two transmission shafts driven by the driving motors. A convex rod corresponding to the sliding rod is arranged on the outer wall of the movable table. When the movable table approaches the placement table, the transmission shaft is inserted into the slot to drive the first lead screw to rotate, drives the shaft teeth to rotate through the toothed plate, so that the placement plate tilts towards the welding device side to adjust the welding angle. At the same time, the convex rod pushes the sliding rod to displace, and after the round rod moves along the trajectory of the guiding groove, it drives the limiting plate in the moving direction to insert into the limiting groove to fix the placement table.

2. The three-dimensional parking tooling die for the production of electric vehicles equipped with an intelligent welding system according to claim 1, wherein: The support system further includes a bottom plate and two support frames fixedly connected to the top surface of the bottom plate by bolts. The positioning frame is fixedly connected to the top surface of the bottom plate by bolts.

3. The three-dimensional parking tooling mold for the production of electric vehicles equipped with an intelligent welding system according to claim 1, characterized in that: The transportation system includes two parallel transportation shafts arranged up and down, transmission discs and chain discs sleeved at both ends of the lower transportation shaft, a chain connected between the upper and lower transportation shafts, a transportation chain sleeved outside the transmission disc, a number of transportation plates arranged inside the transportation chain, a connecting shaft connected between the two transportation plates, an annular track sleeved outside the transportation chain and fixedly connected to the inner side of the support frame by bolts, and a transportation motor for driving the upper transportation shaft to rotate. The transportation motor is fixedly connected to the inner bracket of the support frame by bolts.

4. The three-dimensional parking tooling die for the production of electric vehicles equipped with an intelligent welding system according to claim 1, characterized in that: The placement table further includes a hanging frame and cover plates fixedly connected to the open ends at the front and rear of the hanging frame by bolts. The hanging frame is sleeved outside the connecting shaft through brackets at both ends. A number of convex frames are welded and fixed on the flat plate at the bottom of the hanging frame. Plate through grooves penetrating from front to back are opened at both ends of the cover plate at the front end. The placement plate is rotatably connected to the outside of the convex frame on the flat plate at the bottom of the hanging frame through the convex shaft on the bottom surface. The shaft teeth are fixedly connected to the end of the convex shaft on the bottom surface of the placement plate through a snap pin.

5. The three-dimensional parking tooling and die for the production of electric vehicles equipped with an intelligent welding system according to claim 1, characterized in that: The docking part further includes a fixed frame clamped and fixed on the flat plate at the bottom of the hanging frame, two first springs sleeved outside the sliding rod, two symmetrically arranged limiting blocks, and a second spring welded and fixed on the outer side wall of the limiting block. A partition for restricting the moving range of the toothed plate is integrally formed inside the fixed frame. Outer convex plates for providing a sliding range for the limiting blocks are integrally formed on the outer side walls at the left and right ends of the fixed frame. The other end of the second spring is welded and fixed to the groove wall of the inner chute of the outer convex plate.

6. The three-dimensional parking tooling die for the production of electric vehicles equipped with an intelligent welding system according to claim 5, characterized in that: The first lead screw is rotatably connected to the inside of the fixed frame. The slide bar is slidably connected to the inside of the toothed plate. Two discs are integrally formed on the outer side wall of the slide bar. One end of the first spring is welded and fixed to the outer side wall of the disc, and the other end abuts against the inner partition of the fixed frame.

7. The three-dimensional parking tooling mold for the production of electric vehicles equipped with an intelligent welding system according to claim 1, characterized in that: The limit plate is slidably connected to the inside of the flat plate at the bottom of the hanger. Two plate openings corresponding to the positions of the limit blocks are formed on the inner side wall of the limit plate. The guiding groove is inclined and its inner end is communicated with the inner side wall of the limit plate. A number of pneumatic clamps for fixing the vehicle frame are fixedly connected to the top surface of the limit plate by bolts.

8. The three-dimensional parking tooling die for the production of electric vehicles equipped with an intelligent welding system according to claim 1, characterized in that: The welding device further includes a connecting frame fixedly connected to the support frame by bolts, two guide rails fixedly connected to the inside of the connecting frame by bolts, and a number of cylinders fixedly connected to the inner wall of the connecting frame by bolts. The driving end of the cylinder is fixedly clamped with the convex block on the bottom surface of the moving table. A table chute is formed on the top surface of the moving table.

9. The three-dimensional parking tooling mold for the production of electric vehicles equipped with an intelligent welding system according to claim 8, characterized in that: The welding device further includes a second lead screw rotatably connected to the outer side walls at the front and rear ends of the moving table, a slider threadedly connected to the outside of the second lead screw and slidably connected to the inside of the table chute, and a welding robotic arm fixedly connected to the top surface of the slider by bolts. One end of the second lead screw is coaxially connected to the driving motor.

10. The three-dimensional parking tooling mold for the production of electric vehicles equipped with an intelligent welding system according to claim 1, characterized in that: The transmission group further includes two pulley wheels arranged in parallel and rotatably connected to the inner wall of the moving table, a transmission belt sleeved between the two pulley wheels, a number of outer convex strips slidably connected to the openings at the ends of the transmission shaft, and a number of third springs regularly welded and fixed to the inner walls of the outer convex strips. The inner end of the transmission shaft is fixedly clamped inside the pulley wheel. The other end of the third spring is welded and fixed to the inside of the opening at the end of the transmission shaft. One of the transmission shafts is connected to the driving motor through a gearbox.

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