A three-dimensional parking type tooling die for production of an electric vehicle equipped with an intelligent welding system

Abstract

The present application relates to the technical field of electric vehicle production, in particular to a three-dimensional parking type tooling die for electric vehicle production equipped with an intelligent welding system, comprising a support system, a transportation system arranged inside the support system, a plurality of placement tables conveyed by the transportation system, and welding devices symmetrically arranged on the left and right sides of the transportation system. The three-dimensional parking type tooling die for electric vehicle production equipped with an intelligent welding system adopts a three-dimensional parking type layout design, and through the linkage cooperation of the transportation system and the placement tables, the multi-layer parking and automatic circulation of the frame in the vertical space are realized, the space utilization of the production site is improved, the problem of large land occupation area of the traditional plane layout is solved, at the same time, the multi-station continuous welding operation is supported, the frame can be automatically transferred to different welding stations to complete double-sided welding, and the production rhythm is greatly shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric vehicle production, in particular to a three-dimensional parking type tooling die for electric vehicle production equipped with an intelligent welding system. BACKGROUND

[0002] Electric vehicle production tooling die is the key equipment for manufacturing electric vehicle parts, with high precision, high strength and durability, ensuring the consistency of parts in mass production, playing a crucial role in improving electric vehicle production efficiency, reducing cost and ensuring quality.

[0003] The patent with application number CN202321981243.9 discloses a new energy vehicle frame shell automatic assembly line, which comprises a continuous conveying base, a conveying frame arranged above the conveying base, and a plurality of 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 a movable wheel. The top of the conveying frame is provided with a lifting hook. Through the arrangement of the conveying frame above the conveying base, the lifting hook arranged symmetrically at the top of the conveying frame can stably and accurately move the new energy vehicle frame shell above the conveying base, facilitating the precise assembly and docking of the new energy vehicle frame shell and the new energy vehicle chassis.

[0004] However, the traditional electric vehicle production tooling die adopts a planar layout design, which has low space utilization and is difficult to realize vertical parking and automatic flow of the frame, resulting in large floor area and limited production line expansion. Moreover, the existing equipment generally relies on manual handling and station switching, which cannot support multi-station continuous operation, resulting in long production rhythm. In addition, the welding process requires frequent manual adjustment of the frame angle and position, which is complex and prone to human error, resulting in poor welding consistency. At the same time, the traditional tooling lacks precise mechanical coordination locking mechanism, and the positioning relies on manual calibration or simple limiting device, which is easy to deviate due to vibration or external force interference, affecting the welding precision and increasing the safety hazard.

[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

[0006] The present application relates to the technical field of electric vehicle production, in particular to a three-dimensional parking type tooling die for electric vehicle production equipped with an intelligent welding system.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0008] A kind of three-dimensional parking type tooling mould of electric vehicle production equipped with intelligent welding system, including support system, transport system arranged in support system, several placing tables transported by transport system and welding device symmetrically arranged on the left and right sides of transport system;

[0009] This setting realizes the multilayer parking and automatic flow of frame in vertical space by the linkage of transport system and placing table, and improves the space utilization of production site.

[0010] The support system includes a positioning frame, and a limiting groove is formed in the top end of the positioning frame.

[0011] The placing table includes a placing plate, shaft teeth arranged at both ends of the convex shaft on the bottom surface of the placing plate, a butt joint portion arranged below the shaft teeth, and two limiting plates having two guide grooves formed on the top surface, the butt joint portion includes a first lead screw having a slot at both ends, a tooth plate engaged with the shaft teeth, and a sliding rod having a circular rod on the bottom surface at both ends.

[0012] The welding device includes a movable platform that can move horizontally, two drive motors arranged on the outer wall of the movable platform, and a transmission group arranged in the movable platform, the transmission group includes two transmission shafts driven by the drive motors, and the outer wall of the movable platform is provided with a convex rod corresponding to the sliding rod.

[0013] When the movable platform approaches the placing table, the transmission shafts are inserted into the slots to drive the first lead screw to rotate, the shaft teeth are driven to rotate by the tooth plate, the placing plate is inclined to the side of the welding device to adjust the welding angle, and at the same time, the convex rod pushes the sliding rod to displace, the circular rod moves along the guide groove track, and then the limiting plate in the moving direction is inserted into the limiting slot to fix the placing table.

[0014] In the technical solution of the present application, 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.

[0015] This setting adds a positioning frame to ensure the stability of the placing table during frame welding by cooperating with the structure inside the placing table.

[0016] In the technical solution of the present application, the transport system includes two parallel transport shafts arranged above and below, a transmission disc and a chain disc sleeved at both ends of the lower transport shaft, a chain connected between the two transport shafts, a transport chain sleeved outside the transmission disc, a plurality of transport plates arranged inside the transport chain, a connecting shaft connected between the two transport plates, an annular track sleeved outside the transport chain and fixedly connected to the inside of the support frame by bolts, and a transport motor driving the upper transport shaft to rotate, the transport motor is fixedly connected to the inner support frame of the support frame by bolts.

[0017] The setting can move the placing table for placing the frame from one welding device to another welding device, so as to complete the welding work of two sides of the frame.

[0018] In the technical scheme of the present application, the placing table further comprises a hanger, a cover plate fixedly connected to the front and rear openings of the hanger, the hanger is sleeved on the outer side of the connecting shaft through the two end supports, a plurality of protrusions are welded and fixed on the bottom plate of the hanger, the cover plate at the front end is provided with a front and rear through plate slot, the placing plate is rotatably connected to the outer side of the protrusion of the bottom plate of the hanger through the protruding shaft on the bottom plate, and the shaft teeth are fixedly connected to the end of the protruding shaft on the bottom plate of the placing plate through a clamping pin.

[0019] The setting can adjust the inclination angle of the placing plate to cooperate with the welding work of the frame, and after the plate body is inclined to the side of the welding device, the welding range of the welding device can be improved.

[0020] In the technical scheme of the present application, the butt joint part further comprises a fixed frame clamped and fixed on the bottom plate of the hanger, two first springs sleeved on the outer side of the sliding rod, two symmetrically arranged limiting blocks, and a second spring welded and fixed on the outer side wall of the limiting block, the inside of the fixed frame is integrally formed with a partition plate limiting the movement range of the limiting tooth plate, the outer side walls at the left and right ends of the fixed frame are integrally formed with outer protruding plates providing a sliding range for the limiting blocks, and the other end of the second spring is welded and fixed on the groove wall of the inner sliding groove of the outer protruding plate.

[0021] In the technical scheme of the present application, the first screw rod is rotatably connected to the inside of the fixed frame, the sliding rod is slidably connected to the inside of the limiting tooth 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 on the outer side wall of the disc, and the other end abuts against the partition plate in the inside of the fixed frame.

[0022] When the moving table approaches the placing table, the transmission shaft is inserted into the insertion slot to drive the first screw rod to rotate, the limiting tooth plate is driven to rotate through the shaft teeth, the placing plate is inclined to the side of the welding device to adjust the welding angle.

[0023] In the technical scheme of the present application, the limiting plate is slidably connected to the inside of the bottom plate of the hanger, two plate surface openings corresponding to the positions of the limiting blocks are formed on the inner side wall of the limiting plate, the guide groove is inclined and the inner side end portion is in communication with the inner side wall of the limiting plate, and a plurality of pneumatic clamps for fixing the frame are fixedly connected to the top surface of the limiting plate through bolts.

[0024] When the sliding rod is displaced, the round rod moves along the track of the guide groove, the limiting plate in the moving direction is inserted into the limiting slot to fix the placing table, so as to ensure the stability of the placing table during the welding work.

[0025] In the technical scheme of the present application, the welding device further comprises a connecting frame fixedly connected with the support frame through bolts, two guide rails fixedly connected to the inside of the connecting frame through bolts, and a plurality of air cylinders fixedly connected to the inner wall of the connecting frame through bolts, the driving end of the air cylinder is fixedly connected with the bottom block of the moving table through clamping, and a table surface sliding groove is further formed in the top surface of the moving table.

[0026] In the technical scheme of the present application, the welding device further comprises a second screw rod rotatably connected to the outer side wall of the moving table at both ends, a sliding block threadedly connected to the outside of the second screw rod and slidingly connected to the inside of the table surface sliding groove, and a welding mechanical arm fixedly connected to the top surface of the sliding block through bolts, one end of the second screw rod is coaxially connected with the driving motor.

[0027] This setting changes the relative position of the moving table and the frame through the air cylinder, and the sliding rod is moved through the protruding rod to fix the position of the placing table.

[0028] In the technical scheme of the present application, the transmission group further comprises two belt pulleys arranged in parallel and rotatably connected to the inner wall of the moving table, a transmission belt sleeved between the two belt pulleys, a plurality of outer protrusions slidingly connected to the opening at the end of the transmission shaft, and a plurality of third springs regularly welded and fixed to the inner wall of the outer protrusions, the inside end of the transmission shaft is fixedly connected to the inside of the belt pulley, the other end of the third spring is welded and fixed to the inside of the opening at the end of the transmission shaft, and one of the transmission shafts is connected with the driving motor through the gear box.

[0029] This setting reduces the distribution of the increase of electrical elements and circuit lines on the placing table through the cooperation of the plurality of outer protrusions at the end of the transmission shaft and the end slot of the first screw rod, thereby reducing the investment cost of the overall structure.

[0030] Compared with the prior art, the present application has the following advantages:

[0031] 1. The three-dimensional parking type tooling mold for the production of the electric vehicle equipped with the intelligent welding system adopts a three-dimensional parking type layout design, realizes the multi-layer parking and automatic flow of the frame in the vertical space through the linkage cooperation of the transportation system and the placing table, improves the space utilization rate of the production site, solves the problem of large occupation area of the traditional plane layout, supports multi-station continuous welding operation at the same time, the frame can be automatically moved to different welding stations to complete double-sided welding, and the production rhythm is greatly shortened.

[0032] 2. The three-dimensional parking type tooling mold produced by the electric vehicle equipped with the intelligent welding system, through the cooperation control of the mechanical structure of the welding device and the placement table, in the welding process, the transmission group drives the first lead screw to rotate, automatically adjusts the inclination angle of the placement plate to adapt to the welding demand, and the limiting plate is accurately inserted into the limiting groove of the positioning frame through the guide groove track, realizes the instantaneous locking of the tooling mold, completely replaces the manual intervention, not only reduces the operation complexity, but also eliminates the human adjustment error, ensures the accuracy of the welding angle and position, thereby improving the welding quality consistency and reducing the safety risk caused by the positioning deviation. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0034] Figure 2 It is a schematic diagram of the structure of the support system in the present application;

[0035] Figure 3 It is a schematic diagram of the structure of the positioning frame in the present application;

[0036] Figure 4 It is a schematic diagram of the structure of the transportation system in the present application;

[0037] Figure 5 It is a schematic diagram of the structure of the vehicle body placement table in the present application;

[0038] Figure 6 It is a schematic diagram of the structure of the vehicle body placement table in the present application;

[0039] Figure 7 It is a schematic diagram of the structure of the vehicle body placement table in the present application;

[0040] Figure 8 It is a schematic diagram of the structure of the butt joint part in the present application;

[0041] Figure 9 It is a schematic diagram of the end structure of the first lead screw in the present application;

[0042] Figure 10 It is a schematic diagram of the structure of the limiting block in the present application;

[0043] Figure 11 It is a schematic diagram of the structure of the pneumatic clamp in the present application;

[0044] Figure 12 It is a schematic diagram of the structure of the welding device in the present application;

[0045] Figure 13 It is a schematic diagram of the structure of the welding device in the present application;

[0046] Figure 14 It is a schematic diagram of the structure of the transmission group in the present application;

[0047] Explanation of reference signs:

[0048] 100, support system; 110, base plate; 120, support frame; 130, positioning frame; 131, limiting groove;

[0049] 200, transport system; 210, transport shaft; 220, transmission disc; 230, chain disc; 240, chain; 250, transport chain; 260, transport plate; 270, connecting shaft; 280, annular track; 290, transport motor;

[0050] 300, placement table; 310, hanger; 320, cover plate; 321, plate surface through slot; 330, placement plate; 340, shaft tooth; 350, butt joint part; 351, fixed frame; 3510, outer convex plate; 352, first lead screw; 3520, insertion slot; 353, toothed plate; 354, sliding rod; 3540, disc; 3541, round rod; 355, first spring; 356, limiting block; 357, second spring; 360, limiting plate; 361, guide slot; 362, plate surface opening; 370, pneumatic clamp;

[0051] 400, welding device; 410, connecting frame; 420, guide rail; 430, air cylinder; 440, moving table; 441, table surface sliding groove; 442, convex rod; 450, second lead screw; 460, sliding block; 470, driving motor; 480, welding mechanical arm; 490, transmission group; 491, belt pulley; 492, transmission belt; 493, transmission shaft; 494, outer convex strip; 495, third spring. DETAILED DESCRIPTION

[0052] The technical solutions in the present application will be described clearly and completely below in combination with the drawings in the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present application.

[0053] Please refer to Figures 1-14 The present embodiment provides a technical solution as shown in the figure:

[0054] A three-dimensional parking type tooling mold for production of electric vehicles equipped with an intelligent welding system, comprising a support system 100, a transport system 200 arranged inside the support system 100, a plurality of placement tables 300 conveyed by the transport system 200, and a welding device 400 symmetrically arranged on the left and right sides of the transport system 200;

[0055] Please refer to Figures 2-3As shown in the drawings, in this embodiment, the support system 100 comprises a positioning frame 130, and a limiting groove 131 is formed at the top end of the positioning frame 130.

[0056] Specifically, the support system 100 further comprises 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.

[0057] Further, the bottom plate 110 and the support frame 120 are used to ensure the stability of the transportation system 200 and the welding device 400, and this setting ensures the stability of the placement table 300 during the welding of the vehicle frame by adding the positioning frame 130 to cooperate with the structure inside the placement table 300.

[0058] Please refer to Figure 4 As shown in the drawings, in this embodiment, the transportation system 200 comprises two parallel transportation shafts 210, a transmission disc 220 and a chain disc 230 sleeved on both ends of the lower transportation shaft 210, a chain 240 connected between the two transportation shafts 210, a transportation chain 250 sleeved on the outside of the transmission disc 220, a plurality of transportation plates 260 arranged inside the transportation chain 250, a connecting shaft 270 connected between the two transportation plates 260, an annular track 280 sleeved on the outside of the transportation chain 250 and fixedly connected to the inside of the support frame 120 by bolts, and a transportation motor 290 driving the rotation of the upper transportation shaft 210, which is fixedly connected to the inner support of the support frame 120 by bolts.

[0059] Further, the transportation motor 290 in the transportation system 200 is started to drive the two transportation shafts 210 to rotate simultaneously through the chain disc 230 and the chain 240, and then the transportation chain 250 is moved through the transmission disc 220 to move the placement table 300 carrying 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 work on both sides of the vehicle frame.

[0060] Please refer to Figures 5-7 As shown in the drawings, in this embodiment, the placement table 300 comprises a placement plate 330, shaft teeth 340 arranged at both ends of the protruding shaft on the bottom surface of the placement plate 330, a butt joint portion 350 arranged below the shaft teeth 340, and two limiting plates 360 having two guide grooves 361 formed on the top surface.

[0061] Specifically, the placing table 300 further comprises a hanger 310 and a cover plate 320 fixedly connected to the hanger 310 at both ends of the cover plate 320, the hanger 310 is sleeved on the outer side of the connecting shaft 270 through both end supports, a plurality of convex supports are welded and fixed on the bottom plate of the hanger 310, both ends of the cover plate 320 located at the front end are provided with front and rear through plate grooves 321, the placing plate 330 is rotatably connected to the outer side of the convex supports on the bottom plate of the hanger 310 through the convex shaft on the bottom, and the shaft teeth 340 are fixedly connected to the end of the convex shaft on the bottom of the placing plate 330 through a clamping pin.

[0062] Further, after the hanger 310 is connected with the connecting shaft 270 in the transportation system 200, the placing plate 330 for placing the frame can move with the transportation system 200, the cover plate 320 is used for protecting the internal structure of the docking portion 350, the plate grooves 321 are used for providing a passing interval for the limiting plate 360, and the placing plate 330 is used for providing a placing platform for the frame. Through adjusting the inclination angle of the placing plate 330, the welding range of the welding device 400 can be improved.

[0063] Please refer to Figures 5-9 In the embodiment, the docking portion 350 comprises a first lead screw 352 provided with a slot 3520 at both ends, a toothed plate 353 engaged with the shaft teeth 340, and a sliding rod 354 provided with a circular rod 3541 on the bottom surface at both ends,

[0064] Specifically, the docking portion 350 further comprises a fixed frame 351 clamped and fixed on the bottom plate of the hanger 310, two first springs 355 sleeved on the outer side of the sliding rod 354, two limiting blocks 356 symmetrically arranged, and a second spring 357 welded and fixed on the outer side wall of the limiting block 356, the fixed frame 351 is integrally formed with a partition plate for limiting the moving interval of the toothed plate 353, the outer convex plates 3510 are integrally formed on the outer side walls of both ends of the fixed frame 351 to provide a sliding interval for the limiting blocks 356, and the other end of the second spring 357 is welded and fixed on the groove wall of the inner sliding groove of the outer convex plate 3510.

[0065] Further, the first lead screw 352 is rotatably connected to the inner portion of the fixed frame 351, the sliding rod 354 is slidably connected to the inner portion of the toothed plate 353, and two disc plates 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 on the outer side wall of the disc plate 3540, and the other end is in abutment with the partition plate in the inner portion of the fixed frame 351.

[0066] Further, the fixed frame 351 is used to provide a rotating interval for the first screw rod 352, and a sliding interval for the sliding rod 354. After the first screw rod 352 rotates, the toothed plate 353 is displaced, the driving shaft tooth 340 is rotated through the toothed plate 353, the placement plate 330 is inclined to the welding device 400 side to adjust the welding angle, when the sliding rod 354 moves to the left side, the two first springs 355 move to the left side together with the disc 3540, at this time, the right first spring 355 is in contact with the inner partition plate of the fixed frame 351 and is contracted, the elastic potential of the right first spring 355 is increased, and the sliding rod is pushed to move to the right side, thereby providing a force for the reset of the sliding rod 354. When the moving table 440 is close to the placement table 300, the driving shaft 493 is inserted into the slot 3520 to drive the first screw rod 352 to rotate, the driving shaft tooth 340 is rotated through the toothed plate 353, and the placement plate 330 is inclined to the welding device 400 side to adjust the welding angle.

[0067] Please refer to Figures 5-11 In the embodiment, the limiting plate 360 is slidingly connected to the inner side of the bottom plate of the hanging bracket 310, two plate surface openings 362 corresponding to the positions of the limiting blocks 356 are formed in the inner side wall of the limiting plate 360, the guide groove 361 is inclined and the inner end is communicated with the inner side wall of the limiting plate 360, and a plurality of pneumatic clamps 370 for fixing the frame are fixedly connected to the top surface of the limiting plate 360 through bolts.

[0068] Further, the elastic force provided by the second spring 357 pushes the limiting block 356 to move outward, the end of the limiting block 356 is inserted into the inner part of the plate surface opening 362, and the displacement of the limiting plate 360 is limited. Through the displacement of the sliding rod 354, the circular rod 3541 moves along the track of the guide groove 361, and the limiting plate 360 in the moving direction is inserted into the limiting groove 131 to fix the placement table 300, so as to ensure the stability of the placement table 300 during the welding operation.

[0069] Please refer to Figures 12-13 In the embodiment, the welding device 400 includes a movable moving table 440, two driving motors 470 arranged on the outer wall of the moving table 440, and a transmission group 490 arranged in the moving table 440.

[0070] Specifically, the welding device 400 further includes a connecting frame 410 fixedly connected to the support frame 120 through bolts, two guide rails 420 fixedly connected to the inner part of the connecting frame 410 through bolts, and a plurality of air cylinders 430 fixedly connected to the inner wall of the connecting frame 410 through bolts. The driving end of the air cylinder 430 is clamped and fixed with the bottom block of the moving table 440, and the top surface of the moving table 440 is provided with a table surface sliding groove 441.

[0071] Further, the welding device 400 further comprises a second screw rod 450 rotatably connected to the outer side walls of the moving table 440 at both ends, a sliding block 460 threadedly connected to the outer side of the second screw rod 450 and slidingly connected to the inside of the table sliding groove 441, and a welding mechanical arm 480 fixedly connected to the top surface of the sliding block 460 by bolts, one end of the second screw rod 450 being coaxially connected with the driving motor 470.

[0072] Further, the cylinder 430 drives the moving table 440 to move on the guide rail 420, so that the welding mechanical arm 480 approaches the outer side of the frame, and at this time, the sliding rod 354 is driven to displace in the fixed frame 351 by the protruding rod 442, the welding mechanical arm 480 is started to perform welding work on the frame, and the driving motor 470 outside the second screw rod 450 is controlled to drive the second screw rod 450 to rotate, so that the sliding block 460 moves in the table sliding groove 441, thereby adjusting the relative position of the welding mechanical arm 480 and the frame. At the same time that the cylinder 430 changes the relative position of the moving table 440 and the frame, the sliding rod 354 is moved by the protruding rod 442, so that the position of the placing table 300 is fixed.

[0073] Please refer to Figures 12-14 In the embodiment, the transmission group 490 includes two transmission shafts 493 driven by the driving motor 470, and the outer wall of the moving table 440 is provided with the protruding rod 442 corresponding to the sliding rod 354.

[0074] Specifically, the transmission group 490 further comprises two belt pulleys 491 arranged in parallel and rotatably connected to the inner wall of the moving table 440, a transmission belt 492 sleeved between the two belt pulleys 491, a plurality of outer protrusions 494 slidingly connected to the end opening of the transmission shaft 493, and a plurality of third springs 495 regularly welded and fixed to the inner wall of the outer protrusion 494. The inner side end of the transmission shaft 493 is clamped and fixed to the inside of the belt pulley 491, and the other end of the third spring 495 is welded and fixed to the inside of the end opening of the transmission shaft 493. One of the transmission shafts 493 is connected with the driving motor 470 through a gear box.

[0075] Further, another driving motor 470 is started to drive one of the transmission shafts 493 in the transmission group 490 to rotate, and through the transmission belt 492, the two transmission shafts 493 simultaneously drive the two first screw rods 352 to rotate, thereby driving the toothed plate 353 to displace. This arrangement reduces the distribution of additional electrical elements and circuit lines on the placing table 300 through the cooperation of the plurality of outer protrusions 494 at the end of the transmission shaft 493 and the end slot 3520 of the first screw rod 352, thereby reducing the overall structural investment cost.

[0076] Finally, it needs to be explained that the transport motor 290, pneumatic clamp 370, air cylinder 430, drive motor 470 and welding robot 480 involved in the present application are all general standard parts or components known to those skilled in the art, and their structure and principle are known to those skilled in the art through technical manuals or through conventional experimental methods. In the idle place of the device, the transport motor 290, pneumatic clamp 370, air cylinder 430, drive motor 470 and welding robot 480 are connected to the external power supply through wires. The specific connection means should refer to the working principle in the present application. The electrical devices are electrically connected in the order of operation. The detailed connection means are all known in the art.

[0077] The three-dimensional parking type tooling mold of the electric vehicle produced with the intelligent welding system in the present application is used. The operator first sends the vehicle frame that needs to be welded into the bottom placing table 300 inside through the external material conveying device, and starts the pneumatic clamp 370 to clamp and fix the vehicle frame;

[0078] Then, the operator starts the transport motor 290 in the transport system 200, drives the two transport shafts 210 to rotate at the same time through the chain disc 230 and the chain 240, then drives the transport chain 250 to move through the transmission disc 220, and moves the placing table 300 holding the vehicle frame to a position parallel to the welding device 400.

[0079] Subsequently, the air cylinder 430 is started to drive the moving table 440 to move on the guide rail 420, so that the welding robot 480 approaches the outer side of the vehicle frame. At this time, the protruding rod 442 drives the sliding rod 354 to displace inside the fixed frame 351, so that the round rod 3541 moves along the guide groove 361 track, thereby driving the limiting plate 360 in the moving direction to pass through the plate surface through groove 321 and insert into the limiting groove 131 to fix the placing table 300. At the same time, the two transmission shafts 493 in the transmission group 490 are respectively inserted into the inside of the first end slot 3520 of the two first lead screws 352;

[0080] After that, the welding robot 480 is started to perform welding work 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, so that the sliding block 460 moves in the table surface sliding groove 441, thereby adjusting the relative position of the welding robot 480 and the vehicle frame.

[0081] At the same time, the other drive motor 470 is started to drive one of the transmission shafts 493 in the transmission group 490 to rotate, and through the transmission belt 492, the two transmission shafts 493 simultaneously drive the two first lead screws 352 to rotate, thereby driving the toothed plate 353 to displace, and through the rotation of the shaft tooth 340 driven by the toothed plate 353, the placing plate 330 is inclined to the welding device 400 side to adjust the welding angle.

[0082] Subsequently, the vehicle frame is moved again by the transport system 200 to the inner side of the other end welding device 400, and the above operation is repeated to complete the welding work on the other side of the vehicle frame.

[0083] The foregoing description of specific exemplary embodiments of the application has been presented for the purposes of illustration and description. It is not intended to be exhaustive or to limit the application to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. It is intended that the scope of the application be limited not with this detailed description, but rather by the claims appended hereto.

Claims

1. A three-dimensional parking type tooling mold for production of an electric vehicle equipped with an intelligent welding system, comprising a support system, a transportation system arranged inside the support system, a plurality of placement tables transported by the transportation system, and welding devices symmetrically arranged on the left and right sides of the transportation system. characterized in that The transportation system comprises two parallel transportation shafts arranged in an upper and lower manner, a transmission disc and a chain disc arranged on both ends of the lower transportation shaft, a chain connected between the two transportation shafts, a transportation chain arranged outside the transmission disc, a plurality of transportation plates arranged inside the transportation chain, a connecting shaft connected between the two transportation plates, an annular track arranged 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, which is fixedly connected to the inner support frame of the support frame by bolts. The support system comprises a positioning frame, and a limiting groove is formed in the top end of the positioning frame. The placement table comprises a placement plate, shaft teeth arranged on both ends of the protruding shaft on the bottom surface of the placement plate, a butt joint portion arranged below the shaft teeth, and two limiting plates having two guide grooves formed on the top surface, the butt joint portion comprises a first lead screw having a slot at both ends, a tooth plate engaged with the shaft teeth, and a sliding rod having a circular rod on the bottom surface at both ends, The butt joint portion further comprises a fixed frame fixedly connected to the bottom surface plate of the hanging frame, two first springs arranged outside the sliding rod, two limiting blocks symmetrically arranged, and a second spring fixedly welded to the outer side wall of the limiting block, the inner portion of the fixed frame is integrally formed with a partition plate for limiting the movement range of the tooth plate, the outer side wall of both ends of the fixed frame is integrally formed with an outer protruding plate for providing a sliding range for the limiting block, and the other end of the second spring is fixedly welded to the groove wall of the inner sliding groove of the outer protruding plate. The welding device comprises a movable table capable of moving horizontally, two drive motors arranged on the outer wall of the movable table, and a transmission group arranged in the movable table, the transmission group comprises two transmission shafts driven by the drive motors, the outer wall of the movable table is provided with a protruding rod corresponding to the sliding rod, when the movable table is close to the placement table, the transmission shaft is inserted into the slot to drive the first lead screw to rotate, the shaft teeth are driven to rotate by the tooth plate, the placement plate is inclined to the welding device side to adjust the welding angle, and at the same time, the protruding rod pushes the sliding rod to displace, after the circular rod moves along the guide groove track, the limiting plate in the moving direction is inserted into the limiting slot to fix the placement table.

2. The smart welding system equipped electric vehicle production gantry tooling fixture of claim 1, wherein: The support system further comprises 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.

3. The smart welding system equipped electric vehicle production gantry tooling fixture of claim 1, wherein: The placement table further comprises a hanging frame and a cover plate fixedly connected to the open outer side of the front and rear ends of the hanging frame by bolts, the hanging frame is arranged outside the connecting shaft through the two end supports, a plurality of protruding frames are fixedly welded to the bottom surface plate of the hanging frame, the both ends of the cover plate located at the front end are provided with front and rear through plate grooves, the placement plate is rotatably connected to the outside of the protruding frame of the hanging frame bottom surface plate through the protruding shaft on the bottom surface, and the shaft teeth are fixedly connected to the end of the protruding shaft on the bottom surface of the placement plate by a clamping pin.

4. The smart welding system equipped electric vehicle production gantry tooling fixture of claim 1, wherein: The first screw rod is rotationally connected to the inside of the fixed frame, the slide rod is slidingly connected to the inside of the toothed plate, and two discs are integrally formed on the outer side wall of the slide rod, one end of the first spring is welded to the outer side wall of the disc, and the other end is in abutment with the inside partition of the fixed frame.

5. The smart welding system equipped electric vehicle production gantry tooling fixture of claim 1, wherein: The limiting plate is slidingly connected to the inside of the bottom plate of the hanger, two plate surface openings corresponding to the positions of the limiting blocks are formed in the inner side wall of the limiting plate, the guide groove is inclined and the inner side end is in communication with the inner side wall of the limiting plate, and a plurality of pneumatic clamps for fixing the vehicle frame are fixedly connected to the top surface of the limiting plate through bolts.

6. The smart welding system equipped electric vehicle production gantry tooling fixture of claim 1, wherein: The welding device further comprises a connecting frame fixedly connected to the support frame through bolts, two guide rails fixedly connected to the inside of the connecting frame through bolts, and a plurality of air cylinders fixedly connected to the inner wall of the connecting frame through bolts, the driving end of the air cylinder is clamped and fixed to the bottom block of the moving table, and a table surface sliding groove is formed in the top surface of the moving table.

7. The smart welding system equipped electric vehicle production gantry tooling fixture of claim 6, wherein: The welding device further comprises a second screw rod rotationally connected to the outer side walls of the front and rear ends of the moving table, a sliding block threadedly connected to the outside of the second screw rod and slidingly connected to the inside of the table surface sliding groove, and a welding mechanical arm fixedly connected to the top surface of the sliding block through bolts, one end of the second screw rod is coaxially connected to the driving motor.

8. The smart welding system equipped electric vehicle production gantry tooling fixture of claim 1, wherein: The transmission group further comprises two belt pulleys arranged in parallel and rotationally connected to the inner wall of the moving table, a transmission belt sleeved between the two belt pulleys, a plurality of outer convex strips slidingly connected to the end opening of the transmission shaft, and a plurality of third springs regularly welded and fixed to the inner wall of the outer convex strip, the inner side end of the transmission shaft is clamped and fixed to the inside of the belt pulley, the other end of the third spring is welded and fixed to the inside of the end opening of the transmission shaft, and one of the transmission shafts is connected to the driving motor through the gear box.

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