Welding equipment

Abstract

The embodiment of the invention provides welding equipment. The welding equipment comprises a rack; the top surface welding devices are installed on the rack, each top surface welding device comprises a first three-axis moving module, a first z-axis rotating mechanism and a top surface welding unit which are sequentially connected, and the first three-axis moving modules are used for driving the top surface welding units to move in the x-axis direction, the y-axis direction and the z-axis direction; the first z-axis rotating mechanism is used for driving the top surface welding unit to rotate around the z-axis; the side face welding device is mounted on the rack, the side face welding device comprises a second three-axis moving module, a first double-axis rotating module and a side face welding unit which are sequentially connected, and the second three-axis moving module is used for driving the side face welding unit to move in the x-axis direction, the y-axis direction and the z-axis direction; the first double-shaft rotating module is used for driving the side face welding unit to rotate around the z-axis and the axis perpendicular to the z-axis. Therefore, the welding requirements of different oil tanks on the top face and the side face can be met at the same time, and universality is high.

Description

Technical Field

[0001] The present invention relates to the technical field of welding, in particular to a welding device. Background Art

[0002] Fuel tanks are essential components for gasoline-powered vehicles, such as automobiles. Fuel tanks typically require welding of components such as nozzles, pipe clamps, carbon canister brackets, support blocks, and isolation valve brackets to ensure proper assembly of surrounding components and ensure proper operation.

[0003] There are significant differences between different fuel tanks in terms of factors such as the size and shape of the fuel tanks, and the welding positions of the weldments are also different. In the prior art, dedicated equipment is usually used to perform welding processing on a specific fuel tank. Each welding unit in the dedicated equipment is set at a specified position and a specified angle to weld the weldment to the welding position of the fuel tank. In this way, it is difficult for dedicated equipment to simultaneously meet the processing requirements of different fuel tanks, and its versatility is poor, which reduces processing efficiency. Moreover, in processing scenarios where the welding positions are arranged relatively closely, the processing space provided is small. In order to avoid interference, each welding unit can only be welded in sequence, which further reduces processing efficiency. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a welding device that can adapt to the processing requirements of different fuel tanks and improve processing efficiency.

[0005] An embodiment of the present invention provides a welding device, which includes: a frame; a plurality of top surface welding devices installed on the frame, each of the top surface welding devices including a first three-axis moving module, a first z-axis rotation mechanism and a top surface welding unit connected in sequence, the first three-axis moving module being used to drive the first z-axis rotation mechanism to drive the top surface welding unit to move along the x-axis direction, the y-axis direction and the z-axis direction, the first z-axis rotation mechanism being used to drive the top surface welding unit to rotate around the z-axis, and the top surface welding unit being used to weld the weldment to the top surface of the oil tank; a side welding device being installed on the frame, the side welding device including a second three-axis moving module, a first two-axis rotation module and a side welding unit connected in sequence, the second three-axis moving module being used to drive the first two-axis rotation module to drive the side welding unit to move along the x-axis direction, the y-axis direction and the z-axis direction, the first two-axis rotation module being used to drive the side welding unit to rotate around the z-axis and an axis perpendicular to the z-axis, and the side welding unit being used to weld the weldment to the side of the oil tank.

[0006] The welding equipment provided by the embodiments of the present invention has at least the following beneficial effects:

[0007] On the one hand, by arranging a first three-axis moving module and a first z-axis rotating mechanism between the frame and the top surface welding unit, the first three-axis moving module can drive the first z-axis rotating mechanism to drive the top surface welding unit to move along the x-axis direction, the y-axis direction and the z-axis direction, so that the top surface welding unit can weld the weldment to the welding position on the top surface of the oil tank, thereby adapting to the processing requirements of different oil tank top surfaces and improving the processing efficiency. At the same time, the first z-axis rotating mechanism can drive the top surface welding unit to rotate around the z-axis. When welding the top surface of the oil tank, the top surface welding units in multiple top surface welding devices can avoid each other to avoid interference, so that multiple welding positions densely arranged on the top surface of the oil tank can be welded at the same time, further improving the processing efficiency. On the other hand, by arranging a second three-axis movable module and a first two-axis rotation module between the frame and the side welding unit, the second three-axis movable module can drive the first two-axis rotation module to drive the side welding unit to move along the x-axis, y-axis and z-axis directions, so that the side welding unit can adapt to move to the welding position on the side of the oil tank. At the same time, the first two-axis rotation module drives the side welding unit to rotate around the z-axis and rotate along two axes perpendicular to the z-axis to adjust the weldment to be opposite to the welding position on the side of the oil tank. The side welding unit can weld the weldment to the welding position, so that it can adapt to the processing requirements of different sides of the oil tank, further improving the processing efficiency. In this way, the welding equipment can simultaneously meet the welding requirements of different oil tanks on the top and sides, and has strong versatility.

[0008] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will be further described below with reference to the accompanying drawings and embodiments, in which:

[0010] Figure 1 1 is a schematic structural diagram of a welding device according to an embodiment of the present invention;

[0011] Figure 2 yes Figure 1 A structural diagram of the welding equipment from another perspective;

[0012] Figure 3 yes Figure 1 A schematic structural diagram of multiple top surface welding devices in the welding equipment and the first x-direction slide rail on the rack;

[0013] Figure 4 yes Figure 3 A schematic structural diagram of a single top surface welding device and a first x-direction slide rail;

[0014] Figure 5 yes Figure 4A schematic structural diagram of the top surface welding device and the first x-direction slide rail from another perspective;

[0015] Figure 6 yes Figure 4 A schematic structural diagram of a top surface welding unit in a top surface welding device;

[0016] Figure 7 yes Figure 6 A schematic diagram of the structure of a partial structure of the first z-axis rotation mechanism and the first z-direction slide in the top surface welding device;

[0017] Figure 8 yes Figure 6 A schematic structural diagram of a chuck in a top surface welding unit;

[0018] Figure 9 yes Figure 1 A schematic structural diagram of the side welding device and the back welding device and the frame in the welding equipment;

[0019] Figure 10 yes Figure 9 A schematic diagram of the structure of the side welding device and the second Y-direction slide rail on the rack;

[0020] Figure 11 yes Figure 10 A schematic structural diagram of the side welding device and the second Y-direction slide rail on the rack from another perspective;

[0021] Figure 12 yes Figure 9 A schematic diagram of the structure of the back welding device and the third x-direction slide rail on the rack;

[0022] Figure 13 yes Figure 10 A schematic structural diagram of the first biaxial rotating module and the second z-direction slide in the side welding device;

[0023] Figure 14 yes Figure 10 A schematic structural diagram of the welding unit in the side welding device when the dislocation movable seat is in the second position;

[0024] Figure 15 yes Figure 14 A schematic structural diagram of a welding unit in a side welding device from another perspective;

[0025] Figure 16 yes Figure 10 A schematic structural diagram of the welding unit in the side welding device when the dislocation movable seat is in the first position;

[0026] Figure 17 yes Figure 15 A schematic structural diagram of a second clamping structure in a welding unit;

[0027] Figure 18 yes Figure 1 A schematic structural diagram of a universal feeding device;

[0028] Figure 19 yes Figure 18 A schematic structural diagram of a welding workbench in a universal feeding device;

[0029] Figure 20 yes Figure 19 A structural diagram of the welding workbench from another perspective;

[0030] Figure 21 yes Figure 19 A structural diagram of a clamping mechanism in a welding workbench;

[0031] Figure 22 yes Figure 21 A schematic structural diagram of a pressing assembly in a pressing mechanism in an exploded state;

[0032] Figure 23 yes Figure 19 A schematic structural diagram of a locking mechanism in a welding workbench;

[0033] Figure 24 yes Figure 19 A schematic structural diagram of a template assembly in a welding workbench;

[0034] Figure 25 yes Figure 18 A schematic structural diagram of a transition table in a universal feeding device;

[0035] Figure 26 yes Figure 25 A schematic structural diagram of the guide structure and guide rod in the transition platform;

[0036] Figure 27 yes Figure 25 Schematic diagram of the structure of the two guide rods in the transition platform.

[0037] Reference numerals:

[0038] Welding equipment 1000;

[0039] Rack 100; first x-direction slide rail 101; second y-direction slide rail 103; third x-direction slide rail 104;

[0040] Top surface welding device 200; first x-axis motion mechanism 21; first x-axis driving member 211; first x-axis slide 212; first y-axis slide 213; first y-axis motion mechanism 22; first y-axis driving member 221; first y-axis slide 222; first z-axis slide 223; first z-axis motion mechanism 23; first z-axis driving member 231; first z-axis slide 232; first z-axis rotation mechanism 24; z-axis rotation driving member 241; rotation seat 242; first gear 243; second gear 244; top surface welding unit 2 5; first reference plate 251; first hot mold assembly 252; hot mold driver 2521; double-sided hot mold head 2522; first hot mold driver 2523; second hot mold driver 2524; first slide 2525; second slide 2526; first fixing assembly 253; welding driver 2531; first clamping structure 2532; slide plate 2533; clamping head 2534; first fixing block 2535; first quick-release block 2536; second quick-release block 2537; first rotating block 2538; first clamping body 2539;

[0041] Side welding device 300; second y-axis motion mechanism 31; second y-axis driving member 311; second y-axis slide 312; second x-axis slide rail 313; second x-axis motion mechanism 32; second x-axis driving member 321; second x-axis slide 322; second z-axis slide rail 323; second z-axis motion mechanism 33; second z-axis driving member 331; second z-axis slide 332; first biaxial rotation module 34; first rotation mechanism 341; first rotation driving member 3411; first connecting base 3412; third gear 3413; fourth gear 3414; second rotation mechanism 342; second rotation driving member 3421; second connecting base 3422 ; fifth gear 3423; sixth gear 3424; side welding unit 35; second reference plate 351; second hot die assembly 352; first hot die head 3521; second hot die head 3522; first translation driver 3523; second fixing assembly 353; second clamping structure 3531; second fixing block 35313; third quick-release block 35314; fourth quick-release block 35315; second rotating block 35316; second clamping body 35317; second translation driver 3532; misalignment driving mechanism 354; misalignment movable seat 3541; misalignment driving member 3542; first movable seat 3543; second movable seat 3544;

[0042] Back welding device 400; third x-direction motion mechanism 41; third x-direction drive member 411; third x-direction slide 412; third z-direction slide 413; third z-direction motion mechanism 42; third z-direction drive member 421; third z-direction slide 422; second dual-axis rotation module 43; back welding unit 44;

[0043] Welding workbench 500; base 51; sliding rail 511; pressing mechanism 52; mounting bracket 521; locking hole 5204; flip driving member 522; pressing assembly 523; connecting structure 5231; insertion hole 5201; first locking hole 5202; pressing structure 5232; connecting rod 52321; strip hole 5203; pressing rod 52322; fixing member 52323; first locking member 5233; locking mechanism 53; fixing plate 531; connecting hole 5301; locking member 532; backing mold assembly 54; mounting plate 541; backing mold 542; second locking member 543; limiting rod 544; photoelectric sensor 5441; guide plate 545; strip hole 5401; transition rod 55; transition plate 56; lifting mechanism 57; material frame 58;

[0044] Transition platform 600; base 61; guide structure 611; slide rod 6111; guide portion 613; air avoidance portion 614; connecting portion 615; guide rod 62; avoidance groove 6201; limiting structure 621; connecting block 6211; clamping block 6212; driving member 6213; slider 622; gear lever 63; adjustment structure 631; feeding platform 700. DETAILED DESCRIPTION

[0045] In the prior art, the top surface of the fuel tank is usually a roughly horizontal plane, with structures such as grooves and protrusions on the horizontal surface. In some small-sized fuel tanks or some relatively complex fuel tanks, there will be some welding positions on the top surface of the fuel tank that are relatively close to each other and arranged relatively densely, so that multiple welding units will interfere with each other when welding at the same time. Compared with the top surface of the fuel tank, the side of the fuel tank is relatively more complex. In some fuel tank products, there may be some areas on the side that are constructed as inclined surfaces (the angle formed with the horizontal plane is an acute angle), and the contour of the side usually extends along a curve (the contour of the inclined surface and the curve extension may exist at the same time). During welding, the weldment needs to be welded to the welding position on the side of the product in a direction perpendicular to the side. Therefore, when facing different fuel tanks, workers need to frequently adjust the relative position of the welding unit and the side of the fuel tank to meet the welding requirements, resulting in low processing efficiency.

[0046] See also Figures 1 to 4 、 Figures 9 to 11The embodiment of the present invention provides a welding device 1000, which includes a frame 100, a plurality of top surface welding devices 200 and a side welding device. The plurality of top surface welding devices 200 are installed on the frame 100, and each top surface welding device 200 includes a first three-axis moving module, a first z-axis rotating mechanism 24 and a top surface welding unit 25 connected in sequence. The first three-axis moving module is used to drive the first z-axis rotating mechanism 24 to drive the top surface welding unit 25 to move along the x-axis direction, the y-axis direction and the z-axis direction. The first z-axis rotating mechanism 24 is used to drive the top surface welding unit 25 to rotate around the z-axis. The top surface welding unit 25 is used to weld the weldment to the top surface of the oil tank; the side welding The connecting device 300 is installed on the frame 100. The side welding device 300 includes a second three-axis movable module, a first two-axis rotation module 34 and a side welding unit 35 connected in sequence. The second three-axis movable module is used to drive the first two-axis rotation module 34 to drive the side welding unit 35 to move along the x-axis direction, the y-axis direction and the z-axis direction. The first two-axis rotation module 34 is used to drive the side welding unit 35 to rotate around the z-axis and the axis perpendicular to the z-axis. The side welding unit 35 is used to weld the weldment to the side of the oil tank.

[0047] Specifically, the frame 100 is constructed as a frame body formed by welding multiple metal pipes, with multiple top surface welding devices 200 hoisted from the top of the frame 100 to facilitate welding the top surface of the fuel tank placed inside the frame 100. A side welding device 300 is installed at the bottom of the frame 100, located on the horizontal side of the fuel tank, to facilitate welding the side of the fuel tank. It should be noted that the welding equipment 1000 provided by the present invention is not only suitable for welding fuel tanks, but also for welding other components such as batteries.

[0048] In this embodiment, the first three-axis motion module includes a first x-axis motion mechanism 21, a first y-axis motion mechanism 22, and a first z-axis motion mechanism 23 connected in sequence. The first x-axis motion mechanism 21 is mounted on the frame 100 and can drive the first y-axis motion mechanism 22 to drive the first z-axis motion mechanism 23, the first z-axis rotation mechanism 24, and the top surface welding unit 25 to move relative to the frame 100 along the x-axis direction. The first y-axis motion mechanism 22 is mounted on the first x-axis motion mechanism 21 and can drive the first z-axis motion mechanism 23 to drive the first z-axis rotation mechanism 24 and the top surface welding unit 25 to move relative to the first x-axis motion mechanism 21 along the y-axis direction. The first z-axis motion mechanism 23 is mounted on the first y-axis motion mechanism 22 and can drive the first z-axis rotation mechanism 24 to drive the top surface welding unit 25 to move relative to the first y-axis motion mechanism 22 along the z-axis direction. The first z-axis rotation mechanism 24 is mounted on the first z-axis motion mechanism 23 and can drive the top surface welding unit 25 to rotate about the z-axis relative to the first z-axis motion mechanism 23. In this way, the top surface welding unit 25 can move along the x-axis, y-axis and z-axis directions, and rotate around the z-axis.

[0049] In this embodiment, the second three-axis motion module includes a second y-axis motion mechanism 31, a second x-axis motion mechanism 32, and a second z-axis motion mechanism 33, which are connected in sequence. The second y-axis motion mechanism 31 is mounted on the frame 100 and can drive the second x-axis motion mechanism 32, the second z-axis motion mechanism 33, the first biaxial rotation module 34, and the side welding unit 35 to move relative to the frame 100 along the y-axis. The second x-axis motion mechanism 32 is mounted on the second y-axis motion mechanism 31 and can drive the second z-axis motion mechanism 33, the first biaxial rotation module 34, and the side welding unit 35 to move relative to the second y-axis motion mechanism 31 along the x-axis. The second z-axis motion mechanism 33 is mounted on the second x-axis motion mechanism 32 and can drive the first biaxial rotation module 34 and the side welding unit 35 to move relative to the second x-axis motion mechanism 32 along the z-axis. The first biaxial rotation module 34 is mounted on the second z-axis motion mechanism 33 and can drive the side welding unit 35 to rotate relative to the second z-axis motion mechanism 33 about the z-axis and an axis perpendicular to the z-axis. In this way, the side welding unit 35 can move along the x-axis, y-axis and z-axis directions, rotate around the z-axis, and rotate around an axis perpendicular to the z-axis.

[0050] On the one hand, by arranging a first three-axis moving module and a first z-axis rotating mechanism 24 between the frame 100 and the top surface welding unit 25, the first three-axis moving module can drive the first z-axis rotating mechanism 24 to drive the top surface welding unit 25 to move along the x-axis direction, the y-axis direction and the z-axis direction, so that the top surface welding unit 25 can weld the weldment to the welding position of the top surface of the oil tank, thereby adapting to the processing requirements of different oil tank top surfaces and improving the processing efficiency. At the same time, the first z-axis rotating mechanism 24 can drive the top surface welding unit 25 to rotate around the z-axis. When welding the top surface of the oil tank, the top surface welding units 25 in the multiple top surface welding devices 200 can avoid each other to avoid interference, so that multiple welding positions densely arranged on the top surface of the oil tank can be welded at the same time, further improving the processing efficiency. On the other hand, by setting a second three-axis movable module and a first two-axis rotation module 34 between the frame 100 and the side welding unit 35, the second three-axis movable module can drive the first two-axis rotation module 34 to drive the side welding unit 35 to move along the x-axis direction, the y-axis direction and the z-axis direction, so that the side welding unit 35 can adapt to move to the welding position on the side of the oil tank. At the same time, the first two-axis rotation module 34 drives the side welding unit 35 to rotate around the z-axis and rotate along two axes perpendicular to the z-axis to adjust the weldment to be opposite to the welding position on the side of the oil tank. The side welding unit 35 can weld the weldment to the welding position, so that it can adapt to the processing requirements of different oil tank sides, further improving the processing efficiency. In this way, the welding equipment 1000 can simultaneously meet the welding requirements of different oil tanks on the top and sides, and has strong versatility.

[0051] The top surface welding device 200 and its related structures in the welding equipment 1000 are described in detail below.

[0052] In one embodiment of this embodiment, please refer to Figure 3 and Figure 4 The frame 100 is provided with a first x-axis slide rail 101. The first x-axis motion mechanism 21 includes a first x-axis driving member 211 and a first x-axis slide 212. The first x-axis slide 212 is slidably engaged with the first x-axis slide rail 101. The first x-axis driving member 211 is mounted on the frame 100 and connected to the first x-axis slide 212. The first y-axis motion mechanism 22 is mounted on the first x-axis slide 212. This arrangement enables high-precision movement of the top surface welding unit 25 relative to the frame 100 in the x-axis direction.

[0053] In one embodiment of this embodiment, please refer to Figures 3 to 5The welding apparatus 1000 includes multiple groups of top surface welding devices 200, each group having at least two top surface welding devices 200, and multiple first x-direction slide rails 101 arranged sequentially along the y-axis direction. The first x-direction slide 212 in each group of top surface welding devices 200 slidably engages with the same first x-direction slide rail 101. With this arrangement, the first x-direction slide 212 of each group of top surface welding devices 200 can move along the same first x-direction slide rail 101. This simplifies the structure and reduces costs, while also improving the positional accuracy of the top surface welding units 25 in the same group and reducing the risk of interference.

[0054] In this embodiment, the welding equipment 1000 includes two groups of top surface welding devices 200, and the number of top surface welding devices 200 in each group is two, that is, a total of four top surface welding devices 200. Two first x-direction slide rails 101 are provided on the frame 100, and the two first x-direction slide rails 101 are arranged at intervals along the y-axis direction. The two groups of top surface welding devices 200 are respectively slidably matched with the corresponding first x-direction slide rails 101. With such an arrangement, the four top surface welding devices 200 can simultaneously perform welding processing on the top surface of the oil tank. Specifically, in this embodiment, the four top surface welding devices 200 are respectively used to weld the oil nozzle, support block, isolation valve bracket and pipe clamp to the corresponding welding positions on the top surface of the oil tank.

[0055] In one embodiment of this embodiment, please refer to Figures 3 to 5 The first y-direction motion mechanism 22 includes a first y-direction driving member 221 and a first y-direction slide 222. The first x-direction slide 212 is provided with a first y-direction slide rail 213. The first y-direction slide 222 slidably engages with the first y-direction slide rail 213. The first y-direction driving member 221 is mounted on the first x-direction slide 212 and connected to the first y-direction slide 222. The first z-direction motion mechanism 23 is mounted on the first y-direction slide 222. This arrangement enables high-precision movement of the top surface welding unit 25 relative to the frame 100 in the y-axis direction.

[0056] In one embodiment of this embodiment, please refer to Figures 3 to 5 The first z-axis motion mechanism 23 includes a first z-axis driving member 231 and a first z-axis slide 232. The first y-axis slide 222 is provided with a first z-axis slide rail 223. The first z-axis slide 232 slidably engages with the first z-axis slide rail 223. The first z-axis driving member 231 is mounted on the first y-axis slide 222 and connected to the first z-axis slide 232. The first z-axis rotation mechanism 24 is mounted on the first z-axis slide 232. This arrangement enables high-precision movement of the top surface welding unit 25 relative to the frame 100 in the z-axis direction.

[0057] In one embodiment of this embodiment, please refer to Figure 3 、 Figure 4 and Figure 7 The first z-axis rotation mechanism 24 includes a z-axis rotation driver 241 and a rotating base 242. The z-axis rotation driver 241 is mounted on the first z-direction motion mechanism 23. The rotating base 242 is mounted on the first z-direction motion mechanism 23 so as to be rotatable relative to the z-axis. The top surface welding unit 25 is mounted on the rotating base 242. The z-axis rotation driver 241 is provided with a first gear 243, and the rotating base 242 is provided with a second gear 244. The first gear 243 and the second gear 244 are meshed. With this arrangement, the z-axis rotation driver 241 can drive the rotating base 242 to rotate relative to the first z-direction motion mechanism 23 through the form of gear meshing, thereby achieving rotation of the top surface welding unit 25 relative to the frame 100 about the z-axis.

[0058] Specifically, the z-axis rotation driver 241 is mounted on the first z-direction slide 232. The rotating base 242 is mounted on the first z-direction slide 232 via a bearing, so that the rotating base 242 can rotate about the z-axis relative to the first z-direction slide 232. The rotating base 242 is inserted through the first z-direction slide 232, and a second gear 244 is provided at the bottom end.

[0059] In one embodiment of this embodiment, please refer to Figure 4 and Figure 7 The number of teeth of the first gear 243 is smaller than the number of teeth of the second gear 244. In this way, the first gear 243 and the second gear 244 can cooperate to achieve a reduction transmission to increase the output torque, thereby improving the rotation accuracy and reliability of the top surface welding unit 25.

[0060] In one embodiment of this embodiment, please refer to Figure 4 and Figure 6The top surface welding unit 25 includes a first reference plate 251, a first hot mold assembly 252, and a first fixing assembly 253. The first reference plate 251 is connected to the first z-axis rotation mechanism 24. Both the first hot mold assembly 252 and the first fixing assembly 253 are mounted on the first reference plate 251. The first hot mold assembly 252 is used to heat the weldment and the oil tank to a molten state. The first fixing assembly 253 is used to fix the weldment and press the molten weldment onto the oil tank. This arrangement allows the first hot mold assembly 252 to heat both the weldment and the oil tank simultaneously, which helps improve welding efficiency. In addition, since the first hot mold assembly 252 and the first fixed assembly 253 are both installed on the first reference plate 251, the first reference plate 251 is connected to the first z-axis rotation mechanism 24, so that the first z-axis rotation mechanism 24 can drive the first reference plate 251 to drive the first hot mold assembly 252 and the first fixed assembly 253 to rotate synchronously around the z-axis, so that the weldment on the first fixed assembly 253 is located above the welding position of the oil tank, and the first fixed assembly 253 can press the weldment down onto the oil tank. At the same time, driven by the first z-axis rotation mechanism 24, the first hot mold assembly 252 and the first fixed assembly 253 in the adjacent top surface welding unit 25 are not prone to interference, so as to achieve multi-point synchronous welding and improve processing efficiency.

[0061] In this embodiment, the first reference plate 251 is fixedly connected to the rotating base 242 , so that under the drive of the z-axis rotation driving member 241 , the rotating base 242 can drive the first reference plate 251 to rotate synchronously.

[0062] In one embodiment of this embodiment, please refer to Figure 4 and Figure 6 The first hot mold assembly 252 and the first fixing assembly 253 are respectively installed on opposite sides of the first reference plate 251. Such an arrangement has a simple structure and can reduce the space occupied by the top surface welding unit 25.

[0063] In one embodiment of this embodiment, please refer to Figure 4 and Figure 6The first fixing assembly 253 includes a welding drive 2531 and a first clamping structure 2532 for clamping the weldment. The welding drive 2531 is installed on the first reference plate 251 and is connected to the first clamping structure 2532. The first hot mold assembly 252 includes a hot mold driver 2521 and a double-sided hot mold head 2522. The hot mold driver 2521 is installed on the first reference plate 251 and is connected to the double-sided hot mold head 2522. The hot mold driver 2521 is used to drive the double-sided hot mold head 2522 to move to the bottom side of the first clamping structure 2532 so that the top side of the double-sided hot mold head 2522 is opposite to the weldment in the z-axis direction, and the hot mold driver 2521 is also used to drive the double-sided hot mold head 2522 to move to abut against the oil tank. The welding drive 2531 is used to drive the first clamping structure 2532 to drive the weldment to move along the z-axis direction so that the weldment abuts against the double-sided hot mold head 2522 or the oil tank. Specifically, the double-sided hot die head 2522 has an upper heating surface and a lower heating surface. The upper heating surface is used to heat the weldment, and the lower heating surface is used to heat the oil tank.

[0064] It can be understood that the hot mold driver 2521 drives the double-sided hot mold head 2522 to move to the bottom side of the first clamping structure 2532 in the z-axis direction. At this time, the welding driver 2531 can drive the weldment to move downward along the z-axis direction by driving the first clamping structure 2532, so that the weldment abuts against the upper heating surface of the double-sided hot mold head 2522, thereby realizing heating of the weldment, and the hot mold driver 2521 can also drive the double-sided hot mold head 2522 to move close to the oil tank, so that the lower heating surface of the double-sided hot mold head 2522 abuts against the oil tank, thereby realizing heating of the weldment, thereby realizing automatic heating of the oil tank and the weldment by the double-sided hot mold head 2522. At the same time, after the weldment is heated to a molten state, the hot mold driver 2521 can drive the double-sided hot mold head 2522 to leave the driving path of the welding driver 2531 to avoid the first clamping structure 2532, and then the welding driver 2531 drives the first clamping structure 2532 to drive the weldment to continue moving along the z-axis direction to complete the automated welding of the weldment and the oil tank.

[0065] In one embodiment of this embodiment, please refer to Figure 6The hot die driver 2521 includes a first hot die driver 2523 and a second hot die driver 2524. The first hot die driver 2523 is mounted on the first reference plate 251 and connected to the second hot die driver 2524. The double-sided hot die head 2522 is disposed on the second hot die driver 2524. The first hot die driver 2523 and the second hot die driver 2524 cooperate to drive the double-sided hot die head 2522 to move along the z-axis and in a direction perpendicular to the z-axis. With this arrangement, the hot die driver 2521 can drive the double-sided hot die head 2522 to move along the z-axis until it abuts against the oil tank to heat the oil tank, and can also drive the double-sided hot die head 2522 to move along the z-axis perpendicular to the z-axis to below the first clamping structure 2532 in the z-axis to heat the weldment.

[0066] In this embodiment, the driving direction of the first hot mold driver 2523 is the z-axis direction, and the driving direction of the second hot mold driver 2524 is a direction perpendicular to the z-axis direction. That is, the first hot mold driver 2523 can drive the second hot mold driver 2524 to drive the double-sided hot mold head 2522 to move along the z-axis direction, and the second hot mold driver can drive the double-sided hot mold head 2522 to move in a direction perpendicular to the z-axis direction. In other embodiments, the driving direction of the first hot mold driver 2523 can also be a direction perpendicular to the z-axis direction, and the driving direction of the second hot mold driver 2524 can also be the z-axis direction.

[0067] In one embodiment of this embodiment, please refer to Figure 6 The hot mold driver 2521 includes a first slide 2525 and a second slide 2526. The first slide 2525 slidably engages with the first reference plate 251. The first hot mold driver 2523 is connected to the first slide 2525. The second slide 2526 slidably engages with the first slide 2525. The second hot mold driver 2524 is mounted on the first slide 2525 and connected to the second slide 2526. The double-sided hot mold head 2522 is disposed on the second slide 2526. This arrangement enables high-precision movement of the double-sided hot mold head 2522 in both directions.

[0068] In one embodiment of this embodiment, please refer to Figure 6 The first reference plate 251 and the first slide 2525 are slidably engaged with each other via guide rails and guide grooves; and / or the first slide 2525 and the second slide 2526 are slidably engaged with each other via guide rails and guide grooves. This arrangement can further improve the movement accuracy of the double-sided hot die head 2522.

[0069] In this embodiment, the first reference plate 251 and the first slide 2525, as well as the first slide 2525 and the second slide 2526 are all slidably matched by guide rails and guide grooves. In other embodiments, the first reference plate 251 and the first slide 2525, as well as the first slide 2525 and the second slide 2526 can also adopt other sliding matching methods.

[0070] In one embodiment of this embodiment, please refer to Figure 6 and Figure 8 The first clamping structure 2532 includes a slide plate 2533 and a chuck 2534. The slide plate 2533 slidably engages the first reference plate 251 and is connected to the welding driver 2531. The chuck 2534 is detachably mounted on the slide plate 2533 and is used to clamp and secure a weldment of matching shape. This arrangement allows for quick removal and replacement of the chuck 2534 for different tanks, improving the versatility and efficiency of the welding process.

[0071] In this embodiment, the chuck 2534 includes a first fixed block 2535, a first quick-release block 2536, a second quick-release block 2537, a first rotating block 2538, and a first clamping body 2539, which are sequentially connected. The first fixed block 2535 is fixedly connected to the slide 2533. The first and second quick-release blocks 2536 and 2537 engage in a snap-fit arrangement, enabling quick removal and installation. The first rotating block 2538 and the second quick-release block 2537 have multiple mounting positions. The relative angles of the first rotating block 2538 and the second quick-release block 2537 about the z-axis vary in different mounting positions, thereby simultaneously avoiding interference and aligning the weldment with the fuel tank. The first clamping body 2539 defines a mounting slot, the shape of which is adapted to the weldment, within which the weldment is clamped and secured. The quick-release connection of the first and second quick-release blocks 2536 and 2537 allows for the timely replacement of the dedicated first clamping body 2539.

[0072] It is understood that the weldment is typically required to be welded to the surface of the fuel tank at a certain angle. The first z-axis rotation mechanism 24 can, on the one hand, adjust the relative angle between the weldment and the fuel tank about the z-axis to align the weldment with the fuel tank, and on the other hand, can swing the top surface welding unit 25 to avoid interference with other adjacent units. In actual use, two situations may occur: when the weldment is adjusted to align with the fuel tank using the first z-axis rotation mechanism 24, the top surface welding unit 25 may interfere with other adjacent units, or when the top surface welding unit 25 is swung by the first z-axis rotation mechanism 24 to avoid interference with other adjacent units, the weldment cannot be aligned with the fuel tank. In this embodiment, a first rotating block 2538 is provided between the second quick-release block 2537 and the first clamping body 2539, and the first rotating block 2538 and the second quick-release block 2537 have the characteristic of having multiple installation positions to adjust the angle of the weldment on the first clamping body 2539 around the z-axis, so that when the first z-axis rotating mechanism 24 adjusts the weldment to align with the oil tank, the top surface welding unit 25 will not interfere with other adjacent units.

[0073] To better address the aforementioned issues, in some embodiments, the first clamping structure 2532 is provided with a rotation adjustment mechanism (not shown) and a camera, both mounted on a slide 2533. The rotation adjustment mechanism is connected to the chuck 2534 and is used to drive the chuck 2534 to rotate the weldment relative to the fuel tank about the z-axis. The camera is used to capture an image of the fuel tank so that the rotation adjustment mechanism can adjust the weldment to align with the fuel tank based on the image. With this arrangement, as long as the first z-axis rotation mechanism 24 ensures that the top surface welding unit 25 does not interfere with other adjacent units, the rotation adjustment mechanism can be used to adjust the weldment to align with the fuel tank.

[0074] In this embodiment, the first x-direction driving member 211, the first y-direction driving member 221 and the first z-direction driving member 231 all use screw motors to achieve linear drive, and the first hot mold driving member 2523, the second hot mold driving member 2524 and the welding driving member 2531 all use cylinders to achieve linear drive, and the output push rod of the cylinder (not shown) is connected to the corresponding moving parts.

[0075] The welding steps of the top surface welding device 200 in the welding equipment 1000 provided in this embodiment are as follows:

[0076] Step 1: The first x-axis motion mechanism 21, the first y-axis motion mechanism 22, the first z-axis motion mechanism 23, and the first z-axis rotation mechanism 24 cooperate to drive the top surface welding unit 25 to move along the x-axis, y-axis, and z-axis directions, and to rotate about the z-axis, so that the top surface welding unit 25 is in a suitable position (with a certain spacing distance from adjacent top surface welding units 25 to ensure that there will be no interference after welding continues);

[0077] Step 2: The second hot die driving member 2524 drives the double-sided hot die head 2522 to move in a direction perpendicular to the z-axis to the bottom side of the first clamping structure 2532. At this time, the upper heating surface of the double-sided hot die head 2522 faces the first clamping structure 2532, and the lower heating surface of the double-sided hot die head 2522 faces the welding position of the oil tank.

[0078] Step 3: The first hot die driving member 2523 drives the double-sided hot die head 2522 to move downward along the z-axis direction. At the same time, the welding driving member 2531 drives the first clamping structure 2532 to move downward along the z-axis direction, so that the lower heating surface of the double-sided hot die head 2522 abuts against the welding position of the oil tank, and the upper heating surface of the double-sided hot die head 2522 abuts against the weldment. The double-sided hot die head 2522 heats the weldment and the oil tank simultaneously, so that both enter a molten state synchronously, thereby improving the welding quality.

[0079] Step 4: After the weldment and the oil tank are heated to the desired position, the first hot die driving member 2523 drives the double-sided hot die head 2522 to move upward along the z-axis, separating the lower heating surface of the double-sided hot die head 2522 from the oil tank. Simultaneously, the welding driving member 2531 drives the first clamping structure 2532 to move upward along the z-axis, separating the upper heating surface of the double-sided hot die head 2522 from the weldment.

[0080] Step 5: The second hot die driving member 2524 drives the double-sided hot die head 2522 to move in a direction perpendicular to the z-axis direction, so that the double-sided hot die head 2522 moves away from between the weldment and the oil tank;

[0081] Step 6: The welding driver 2531 drives the first clamping structure 2532 to move the weldment downward along the z-axis direction, pressing the weldment to the welding position of the oil tank, thereby completing the welding.

[0082] The side welding device 300 and its related structures in the welding equipment 1000 are described in detail below.

[0083] In some embodiments, multiple side welding devices 300 are used to simultaneously weld the fuel tank at multiple, densely arranged welding locations. The presence of the first dual-axis rotation module 34 allows the side welding units 35 of the multiple side welding devices 300 to avoid each other, preventing interference that could prevent simultaneous welding.

[0084] In one embodiment of this embodiment, please refer to Figure 10 and Figure 11The second y-direction motion mechanism 31 includes a second y-direction driving member 311 and a second y-direction slide 312. The frame 100 is provided with a second y-direction slide rail 103 that slidably cooperates with the second y-direction slide 312. The second y-direction driving member 311 is mounted on the frame 100 and connected to the second y-direction slide 312. The second x-direction motion mechanism 32 includes a second x-direction driving member 321 and a second x-direction slide 322. The second y-direction slide 312 is provided with a second x-direction slide rail 313 that slidably cooperates with the second x-direction slide 322. The second x-direction driving member 321 is mounted on the second y-direction slide 312 and connected to the second x-direction slide 322. The second z-direction motion mechanism 33 includes a second z-direction drive member 331 and a second z-direction slide 332. The second x-direction slide 322 is provided with a second z-direction slide rail 323 that slidably engages with the second z-direction slide 332. The second z-direction drive member 331 is mounted on the second x-direction slide 322 and connected to the second z-direction slide 332. The first dual-axis rotation mechanism is mounted on the second z-direction slide 332. This arrangement enables high-precision movement of the side welding unit 35 relative to the frame 100 in the x-axis, y-axis, and z-axis directions.

[0085] In one embodiment of this embodiment, please refer to Figure 10 、 Figure 11 and Figure 13 The first dual-axis rotation module 34 includes a first rotation mechanism 341 and a second rotation mechanism 342. The first rotation mechanism 341 is mounted on the second z-direction motion mechanism 33 and connected to the second rotation mechanism 342. The side welding unit 35 is mounted on the second rotation mechanism 342. The first rotation mechanism 341 is used to drive the second rotation mechanism 342 to rotate the side welding unit 35 around the z-axis, while the second rotation mechanism 342 is used to drive the side welding unit 35 to rotate around an axis perpendicular to the z-axis. With this arrangement, the first rotation mechanism 341 and the second rotation mechanism 342 can cooperate to rotate the side welding unit 35 around the z-axis and an axis perpendicular to the z-axis.

[0086] In one embodiment of this embodiment, please refer to Figure 10 、 Figure 11 and Figure 13The first rotating mechanism 341 includes a first rotating drive member 3411 and a first connecting seat 3412. The first connecting seat 3412 is rotatably mounted on the second z-direction motion mechanism 33 about the z-axis. The first rotating drive member 3411 is mounted on the second z-direction motion mechanism 33 and connected to the first connecting seat 3412. The second rotating mechanism 342 includes a second rotating drive member 3421 and a second connecting seat 3422. The second connecting seat 3422 is rotatably mounted on the first connecting seat 3412 along an axis perpendicular to the z-axis. The second rotating drive member 3421 is mounted on the first connecting seat 3412 and connected to the second connecting seat 3422. The side welding unit 35 is disposed on the second connecting seat 3422. With this arrangement, the second connecting seat 3422 can drive the side welding unit 35 to rotate about the z-axis and an axis perpendicular to the z-axis under the drive of the first rotating drive member 3411 and the second rotating drive member 3421.

[0087] Specifically, the first rotary driving member 3411 is mounted on the second z-direction slide 332 , and the first connecting seat 3412 is mounted on the second z-direction slide 332 via a bearing, so that the first connecting seat 3412 can rotate around the z-axis relative to the second z-direction slide 332 .

[0088] In one embodiment of this embodiment, please refer to Figure 10 、 Figure 11 and Figure 13 The first rotary drive member 3411 is provided with a third gear 3413, and the first connecting base 3412 is provided with a fourth gear 3414 that meshes with the third gear 3413. The number of teeth on the third gear 3413 is smaller than the number of teeth on the fourth gear 3414. This arrangement allows for a reduced transmission to be achieved through the cooperation between the third gear 3413 and the fourth gear 3414, thereby increasing the output torque to the first connecting base 3412 and improving the rotational accuracy and reliability of the side welding unit 35.

[0089] Specifically, the first connecting seat 3412 is inserted into the second z-direction sliding seat 332 , the fourth gear 3414 is disposed on the top of the first connecting seat 3412 , and the second connecting seat 3422 is installed on the end surface of the fourth gear 3414 .

[0090] In one embodiment of this embodiment, please refer to Figure 10 、 Figure 11 and Figure 13The second rotary drive member 3421 is provided with a fifth gear 3423, and the second connecting base 3422 is provided with a sixth gear 3424 that meshes with the fifth gear 3423. The fifth gear 3423 has fewer teeth than the sixth gear 3424. This arrangement allows for a reduced transmission through the cooperation between the third gear 3413 and the fourth gear 3414, thereby increasing the output torque to the second connecting base 3422 and improving the rotational accuracy and reliability of the side welding unit 35.

[0091] Specifically, the second connecting seat 3422 is inserted into the first connecting seat 3412 , and a sixth gear 3424 is installed at one end thereof. The side welding unit 35 is installed on the end surface of the sixth gear 3424 .

[0092] In one embodiment of this embodiment, please refer to Figure 9 Two side welding devices 300 are positioned opposite each other to weld the workpiece to opposite sides of the fuel tank. Specifically, the two side welding devices 300 have the same structure. This arrangement allows welding of both sides of the fuel tank simultaneously, improving processing efficiency.

[0093] Specifically, the two side welding devices 300 are used to weld the oil nozzle, the support block, the isolation valve bracket and the pipe clamp to corresponding welding positions on the side of the oil tank.

[0094] In one embodiment of this embodiment, please refer to Figure 14 The side welding unit 35 includes a second reference plate 351, a second hot mold assembly 352, and a second fixing assembly 353. The second reference plate 351 is connected to the first dual-axis rotation module 34. The second hot mold assembly 352 and the second fixing assembly 353 are both mounted on the second reference plate 351. The second hot mold assembly 352 is used to heat the weldment and the oil tank to a molten state. The second fixing assembly 353 is used to fix the weldment and press the molten weldment onto the oil tank. Specifically, the second reference plate 351 is mounted on the end surface of the sixth gear 3424. In this arrangement, the second hot mold assembly 352 and the second fixed assembly 353 are both installed on the second reference plate 351, and the second reference plate 351 is connected to the first biaxial rotation module 34, so that the first biaxial rotation module 34 can drive the second reference plate 351 to drive the second hot mold assembly 352 and the second fixed assembly 353 to perform biaxial rotation movement synchronously, so that the weldment on the second fixed assembly 353 is located in the normal direction of the welding position on the side of the oil tank, the second fixed assembly 353 can press the weldment down onto the oil tank, and the heating surface of the second hot mold assembly 352 is located in the normal direction of the welding position on the side of the oil tank, and the second hot mold assembly 352 can heat the oil tank.

[0095] In one embodiment of this embodiment, please refer to Figure 14 The second hot die assembly 352 includes a first hot die head 3521, a second hot die head 3522 and a first translation drive member 3523. The first hot die head 3521 is fixed on the second reference plate 351. The first translation drive member 3523 is arranged on the second reference plate 351 and connected to the second hot die head 3522. The first translation drive member 3523 is used to drive the second hot die head 3522 to move to abut against the oil tank. The second fixed assembly 353 includes a second clamping structure 3531 and a second translation drive member 3532. The second translation drive member 3532 is arranged on the second reference plate 351 and connected to the second clamping structure 3531. The second translation drive member 3532 is used to drive the second clamping structure 3531 to drive the weldment to move to abut against the first hot die head 3521 and the oil tank respectively.

[0096] By securing the first hot die head 3521 to the second reference plate 351, the second translational drive member 3532 can drive the second clamping structure 3531 to move the weldment into contact with the first hot die head 3521, thereby heating the weldment. Furthermore, by providing the second hot die head 3522 and the first translational drive member 3523, the first translational drive member 3523 can drive the second hot die head 3522 into contact with the fuel tank, thereby heating the fuel tank. In this manner, the fuel tank and the weldment are heated by separate hot die heads, allowing both to simultaneously enter a molten state, thereby improving weld quality. Furthermore, the separate hot die heads can effectively shorten the welding stroke of the second clamping structure 3531 (the stroke required for the second translational drive member 3532 to drive the second clamping structure 3531), thereby facilitating the welding of large fuel tanks in environments with limited space. In addition, the second translation drive member 3532 can simultaneously realize the heating of the weldment and the welding of the weldment and the oil tank. The structure is relatively simple, which is conducive to reducing costs.

[0097] In one embodiment of this embodiment, please refer to Figure 14 In order to reduce costs and improve welding accuracy, the first translation drive member 3523 and the second translation drive member 3532 are both constructed as cylinders and are arranged in parallel.

[0098] In one embodiment of this embodiment, please refer to Figure 14 The heating surface of the first hot die head 3521 faces opposite to the heating surface of the second hot die head 3522. With this arrangement, the weldment and the oil tank can be heated from both sides by the corresponding hot die heads, saving horizontal space.

[0099] Specifically, Figure 14 The heating surface of the first hot die head 3521 is shown to be generally facing right, and the heating surface of the second hot die head 3522 is shown to be generally facing left.

[0100] In one embodiment of this embodiment, please refer to Figures 14 to 16 The side welding unit 35 includes a dislocation driving mechanism 354, which includes a dislocation moving seat 3541 and a dislocation driving member 3542. The first translation driving member 3523 and the second translation driving member 3532 are both arranged on the dislocation moving seat 3541. The dislocation driving member 3542 is arranged on the second reference plate 351 and is connected to the dislocation moving seat 3541. The dislocation driving member 3542 is used to drive the dislocation moving seat 3541 to move between a first position and a second position. When the dislocation moving seat 3541 is in the first position, the second clamping structure 3531 is opposite to the first hot die head 3521, and the second hot die head 3522 is opposite to the welding position of the oil tank. When the dislocation moving seat 3541 is in the second position, the second clamping structure 3531 is opposite to the welding position of the oil tank. It is understood that after the offset driver 3542 drives the offset movable seat 3541 to move to the first position, the second translation driver 3532 can drive the second clamping structure 3531 to move the weldment to abut against the first hot die 3521. Simultaneously, the first translation driver 3523 can drive the second hot die 3522 to abut against the welding position of the fuel tank, so that the weldment and the welding position of the fuel tank are simultaneously heated to a molten state to ensure welding quality. The offset driver 3542 then drives the offset movable seat 3541 from the first position to the second position, so that the second translation driver 3532 can drive the second clamping structure 3531 to move the molten weldment to abut against the molten welding position of the fuel tank, thereby completing the fusion welding. In addition, during the welding process, the second translation driver 3532 can take into account the driving components of both weldment heating and weldment welding, simplifying the structure and reducing costs, which is conducive to reducing the horizontal dimension of the side welding unit 35.

[0101] In one embodiment of this embodiment, please refer to Figures 14 to 16 The offset drive mechanism 354 includes a first movable base 3543 and a second movable base 3544, both of which are slidably engaged with the offset movable base 3541. The second hot die head 3522 is disposed on the first movable base 3543, and the second clamping structure 3531 is disposed on the second movable base 3544. This arrangement improves the movement accuracy of the second hot die head 3522 and the second clamping structure 3531, thereby improving welding quality.

[0102] In one embodiment of this embodiment, Figure 14 and Figure 17 The second clamping structure 3531 is detachably connected to the second movable seat 3544 and is used to clamp and fix a weldment of matching shape. This arrangement allows for quick removal of the second clamping structure 3531 and replacement of a dedicated second clamping structure 3531 when machining different fuel tanks, thereby improving the versatility of the welding process and enhancing processing efficiency.

[0103] Specifically, the second clamping structure 3531 includes a second fixed block 35313, a third quick-release block 35314, a fourth quick-release block 35315, a second rotating block 35316, and a second clamping body 35317, which are sequentially connected. The second fixed block 35313 is fixedly connected to the second movable seat 3544. The third quick-release block 35314 and the fourth quick-release block 35315 are fastened together for quick removal and installation. The second rotating block 35316 and the fourth quick-release block 35315 have multiple installation positions. In different installation positions, the relative angles of the second rotating block 35316 and the fourth quick-release block 35315 about an axis parallel to the driving direction of the second translational driver 3532 vary, facilitating alignment of the weldment with the fuel tank. The second clamping body 35317 defines a mounting slot whose shape matches the weldment, and the weldment is clamped and fixed within the mounting slot. Due to the quick-release connection between the third quick-release block 35314 and the fourth quick-release block 35315 , the dedicated second clamping body 35317 can be replaced in a timely manner.

[0104] In some embodiments, the second clamping structure 3531 is provided with a rotation adjustment mechanism (not shown) and a camera, which are both mounted on the second movable seat 3544. The rotation adjustment mechanism is connected to the second fixed block 35313 and is used to drive the second fixed block 35313 to drive the second clamping body 35317 and the weldment to rotate relative to the oil tank around an axis parallel to the driving direction of the second translation drive member 3532. The camera is used to obtain an image of the oil tank so that the rotation adjustment mechanism can adjust the weldment to align with the oil tank based on the image.

[0105] In one embodiment of this embodiment, please refer to Figures 14 to 16 The offset movable seat 3541 is slidably engaged with the second reference plate 351. This configuration improves the movement accuracy of the offset movable seat 3541, thereby ensuring that the weldment on the second clamping structure 3531 can be aligned with the first hot die head 3521, and the second hot die head 3522 can be aligned with the welding position of the fuel tank.

[0106] Specifically, the direction in which the offset moving seat 3541 slides relative to the second reference plate 351 is perpendicular to the axis around which the second rotating mechanism 342 drives the second reference plate 351 to rotate.

[0107] Specifically, the sliding fit between the offset movable seat 3541 and the second reference plate 351 , the sliding fit between the first movable seat 3543 and the offset movable seat 3541 , and the sliding fit between the second movable seat 3544 and the offset movable seat 3541 are achieved by using guide rails and guide grooves.

[0108] In one embodiment of this embodiment, please refer to Figures 14 to 16When the offset movable seat 3541 is in the second position, the first hot die head 3521 and the second hot die head 3522 are respectively located on either side of the second clamping structure 3531 in the driving direction of the offset driving member 3542. This arrangement allows the second clamping structure 3531 to avoid the first hot die head 3521 and face the oil tank when the offset movable seat 3541 is in the second position, facilitating welding of the welded parts.

[0109] In one embodiment of this embodiment, please refer to Figures 14 to 16 When the offset movable seat 3541 is in the second position, the distance between the second clamping structure 3531 and the first hot die 3521 is equal to the distance between the second hot die 3522 and the second clamping structure 3531 in the driving direction of the offset driver 3542. This arrangement allows the position of the second clamping structure 3531 when the offset movable seat 3541 is in the second position to coincide with the position of the second hot die 3522 when the offset movable seat 3541 is in the first position, facilitating alignment of the weldment on the second clamping structure 3531 and the second hot die 3522 with the respective weld locations on the fuel tank.

[0110] In one embodiment of this embodiment, please refer to Figures 14 to 16 The driving directions of the first translation driving member 3523 and the second translation driving member 3532 are parallel and perpendicular to the driving direction of the offset driving member 3542. This arrangement facilitates heating and welding of the weldment and the oil tank, which is beneficial to improving welding accuracy.

[0111] In this embodiment, the second Y-direction driving member 311, the second X-direction driving member 321 and the second Z-direction driving member 331 all use motor screws to achieve linear drive, and the first translation driving member 3523, the second translation driving member 3532 and the offset driving member 3542 all use cylinder drive to achieve linear drive, and the output push rod of the cylinder (not shown) is connected to the corresponding moving parts.

[0112] In one embodiment of this embodiment, please refer to Figure 12The back welding device 400 includes a biaxial moving module, a second biaxial rotating module 43, and a back welding unit 44, which are connected in sequence. The biaxial moving module is used to drive the second biaxial rotating module 43 to drive the back welding unit 44 to move along the x-axis and the z-axis. The second biaxial rotating module 43 is used to drive the back welding unit 44 to rotate about the z-axis and an axis perpendicular to the z-axis. The back welding unit 44 is used to weld the workpiece to the back of the fuel tank. It is understood that the biaxial moving module can drive the second biaxial rotating module 43 to drive the back welding unit 44 to move along the x-axis and the z-axis, so that the back welding unit 44 can move to the welding position on the back of the fuel tank. At the same time, the second biaxial rotating module 43 drives the back welding unit 44 to rotate about the z-axis and an axis perpendicular to the z-axis to adjust the workpiece to the welding position opposite the back. The back welding unit 44 can weld the workpiece to this welding position, and can achieve simultaneous welding of the side and back of the fuel tank with the side welding device 300, further improving processing efficiency.

[0113] Specifically, the dual-axis motion module includes a third x-axis motion mechanism 41 and a third z-axis motion mechanism 42. The third x-axis motion mechanism 41 is mounted on the frame 100 and can drive the third z-axis motion mechanism 42, the second dual-axis rotation module 43 and the back welding unit 44 to move relative to the frame 100 along the x-axis direction. The third z-axis motion mechanism 42 is mounted on the third x-axis motion mechanism 41 and can drive the second dual-axis rotation module 43 and the back welding unit 44 to move relative to the third x-axis motion mechanism 41 along the z-axis direction. The second dual-axis rotation module 43 is mounted on the third z-axis motion mechanism 42 and can drive the back welding unit 44 to rotate relative to the third z-axis motion mechanism 42 around the z-axis and an axis perpendicular to the z-axis. In this way, the back welding unit 44 can move along the x-axis and z-axis directions, rotate around the z-axis, and rotate around an axis perpendicular to the z-axis.

[0114] In one embodiment of this embodiment, please refer to Figure 1 and Figure 12 The third x-axis motion mechanism 41 includes a third x-axis drive member 411 and a third x-axis slide 412. The frame 100 is provided with a third x-axis slide rail 104 that slidably cooperates with the third x-axis slide 412. The third x-axis drive member 411 is mounted on the frame 100 and connected to the third x-axis slide 412. The third z-axis motion mechanism 42 includes a third z-axis drive member 421 and a third z-axis slide 422. The third x-axis slide 412 is provided with a third z-axis slide rail 413 that slidably cooperates with the third z-axis slide 422. The third z-axis drive member 421 is mounted on the third x-axis slide 412 and connected to the third z-axis slide 422. The second dual-axis rotation mechanism is mounted on the third z-axis slide 422. This arrangement enables high-precision movement of the back welding unit 44 relative to the frame 100 in the x-axis and z-axis directions.

[0115] It should be noted that the specific structure of the back welding unit 44 in the back welding apparatus 400 can be referenced to the side welding unit 35 in the side welding apparatus 300, and the specific structure of the second biaxial rotation module 43 in the back welding apparatus 400 can be referenced to the first biaxial rotation module 34 in the side welding apparatus 300. Compared to the side welding unit 35, the back welding unit 44 eliminates the need for movement in the y-axis direction with respect to the frame 100. By properly positioning the universal feeding device, the back welding unit 44 can be positioned at an appropriate distance from the oil tank on the universal feeding device in the y-axis direction, eliminating the need for movement in the y-axis direction.

[0116] The welding steps of the side welding device 300 of the welding equipment 1000 provided in this embodiment are as follows:

[0117] Step 1: The second y-axis motion mechanism 31, the second x-axis motion mechanism 32, the second z-axis motion mechanism 33, and the first dual-axis rotation module 34 cooperate to drive the side welding unit 35 to move along the y-axis, x-axis, and z-axis, and to rotate around the z-axis and an axis perpendicular to the z-axis, so that the side welding unit 35 is in a suitable position. At this time, the offset movable seat 3541 is in the first position, the second clamping structure 3531 is opposite to the first hot die head 3521, and the second hot die head 3522 is opposite to the welding position of the fuel tank;

[0118] Step 2: The first translation drive 3523 drives the second hot die head 3522 to move to abut against the welding position of the fuel tank, thereby heating the welding position of the fuel tank to a molten state. At the same time, the second translation drive 3532 drives the second clamping structure 3531 to move the weldment to abut against the first hot die head 3521, thereby heating the weldment to a molten state.

[0119] Step 3: The first translation drive 3523 drives the second hot die head 3522 to move and separate from the oil tank. At the same time, the second translation drive 3532 drives the second clamping structure 3531 to move the weldment to separate from the first hot die head 3521.

[0120] Step 4: The dislocation driving member 3542 drives the dislocation moving seat 3541 to move to the second position, so that the second clamping structure 3531 is opposite to the welding position of the oil tank;

[0121] Step 5: The second translation driving member 3532 drives the second clamping structure 3531 to move the weldment to be welded to the oil tank.

[0122] The following is a detailed description of the universal feeding device and its related structures in the welding equipment 1000.

[0123] See also Figure 1 、 Figure 18、 Figure 19 、 Figure 21 、 Figure 24 and Figure 25 An embodiment of the present invention provides a universal feeding device, comprising a frame 100, a welding workbench 500, and a transfer platform 600. Both the welding workbench 500 and the transfer platform 600 are mounted on the frame 100. The workbench 500 is mounted at the center of the bottom of the frame 100 and is used to secure the fuel tank. The transfer platform 600 is positioned adjacent to the workbench 500 to assist in loading and unloading the fuel tank. A feeding platform 700 is positioned adjacent to the transfer platform 600 to transport the fuel tank away after welding is completed.

[0124] The welding workbench 500 includes a base 51, a clamping mechanism 52, a locking mechanism 53, and multiple backing assemblies 54. The clamping mechanism 52 includes a mounting bracket 521, a tilting drive 522, and a clamping assembly 523. The mounting bracket 521 slidably engages with the base 51 and can slide relative to it to a first predetermined position. The tilting drive 522 is mounted on the mounting bracket 521 and connected to the clamping assembly 523. The tilting drive 522 is used to drive the clamping assembly 523 to compress the top surface of the fuel tank. The locking mechanism 53 is located on the base 51 and connected to the mounting bracket 521 to confine the mounting bracket 521 to the first predetermined position. Multiple backing assemblies 54 are detachably mounted on the base 51. The multiple backing assemblies 54 collectively support the bottom surface of the fuel tank and abut against the sides of the fuel tank to limit the horizontal movement of the fuel tank relative to the base 51.

[0125] It is understood that due to the varying sizes and shapes of different fuel tanks, the guard assembly 54 used to secure the fuel tank also varies. By providing multiple guard assemblies 54 that are removably mounted on the base 51, the guard assembly 54 can be easily replaced to suit the specific fuel tank. In this embodiment, three guard assemblies 54 are used to ensure adequate contact with the fuel tank, restrict horizontal movement of the tank, and improve welding quality.

[0126] It is understood that the flip drive member 522 is also used to drive the clamping assembly 523 to leave the top surface of the fuel tank after the fuel tank is welded, so that the fuel tank can leave the base 51. In this embodiment, there are two sets of clamping mechanisms 52, which are arranged side by side and have the same structure.

[0127] It is understood that the locking mechanism 53 is also used to release the connection with the mounting bracket 521, thereby releasing the restrictions on the mounting bracket 521, allowing the mounting bracket 521 to continue to move relative to the base 51 and adjust to a suitable position. For example, when another type of oil tank needs to be welded, the locking mechanism 53 can be used to release the restrictions on the mounting bracket 521, allowing the mounting bracket 521 to move to a first preset position relative to the base 51, allowing the clamping assembly 523 to avoid screws and other components on the top surface of the oil tank being processed, as well as the protrusions, and to apply the clamping force to the appropriate position, so that the oil tank is firmly fixed to the base 51 under the action of the clamping force.

[0128] It should be noted that the relatively protruding structure on the bottom surface of the fuel tank can be a component such as a screw, or it can also be a protruding structure on the fuel tank itself. The first preset position refers to the position of the mounting bracket 521 relative to the base 51 when providing a good clamping force for the clamping assembly 523. When fixing different fuel tanks, the first preset position can be different and does not refer to a fixed position.

[0129] In the welding workbench 500, multiple mold assemblies 54 can be detachably mounted on the base so that corresponding mold assemblies 54 can be installed according to the size and shape of the oil tank to limit the oil tank. At the same time, the mounting bracket 521 can drive the flip drive member 522 and the clamping assembly 523 to slide to the first preset position relative to the base 51, and limit the mounting bracket 521 to the first preset position through the locking structure, so that the clamping assembly 523 can avoid the components and protrusions on the top surface of the oil tank, and apply pressure to the appropriate position on the top surface of the oil tank, so that the oil tank is fixed to the base 51. Therefore, the welding workbench 500 can meet the fixing requirements of different oil tanks, has strong versatility, effectively reduces processing costs, and improves processing efficiency.

[0130] In one embodiment of this embodiment, please refer to Figure 19 、 Figure 21 and Figure 22 The pressing assembly 523 includes a connecting structure 5231, a pressing structure 5232, and a first locking member 5233. The connecting structure 5231 defines an insertion hole 5201 and a first locking hole 5202 communicating with the insertion hole 5201. One end of the pressing structure 5232 is received in the insertion hole 5201. The first locking member 5233 is relatively movably engaged with the first locking hole 5202 and abuts against the pressing structure 5232 to prevent the pressing structure 5232 from leaving the insertion hole 5201. Specifically, the connecting structure 5231 is connected to the tilting drive member 522, and the pressing structure 5232 is used to press the top surface of the fuel tank.

[0131] By setting the first locking piece 5233 to cooperate with the first locking hole 5202 to be relatively movable, when the compression structure 5232 needs to be installed, the compression structure 5232 can be inserted into the socket 5201, and then the first locking piece 5233 is relatively moved to abut against the compression structure 5232 to restrict the compression structure 5232 from leaving the socket 5201, thereby completing the installation of the compression structure 5232; and when the compression structure 5232 needs to be disassembled, the first locking piece 5233 can be moved to separate from the compression structure 5232 to release the restriction on the compression structure 5232, so that the compression structure 5232 leaves the socket 5201, thereby completing the disassembly of the compression structure 5232. Such a setting makes it convenient to install and disassemble the compression structure 5232 on the connecting structure 5231, so as to facilitate the replacement of a dedicated compression structure 5232 to adapt to the fixing requirements of different oil tanks, thereby further improving the versatility.

[0132] It is understandable that some fuel tanks have special structures, and the position of applying pressure may not be adjusted to the right position by the relative sliding of the mounting bracket 521 and the base 51. In this case, the clamping structure 5232 can be replaced to cooperate with the relative sliding of the mounting bracket 521 so that the clamping position is adjusted to a suitable position, so that the fuel tank can be better fixed on the base 51.

[0133] In this embodiment, the first locking member 5233 is configured as a hand screw, so that a worker can manually screw the locking member 532 to achieve installation or removal.

[0134] In one embodiment of this embodiment, please refer to Figure 19 、 Figure 21 and Figure 22 The compression structure 5232 includes a connecting rod 52321, a pressure rod 52322, and a fixing member 52323. One end of the connecting rod 52321 is received in the insertion hole 5201, and the other end of the connecting rod 52321 is provided with a strip hole 5203. The pressure rod 52322 can move along the strip hole 5203 to a second preset position. The fixing member 52323 connects the connecting rod 52321 and the pressure rod 52322 to confine the pressure rod 52322 in the second preset position. This arrangement allows the relative position of the pressure rod 52322 and the connecting rod 52321 to be adjusted via the strip hole 5203 and the fixing member 52323, allowing the pressure rod 52322 to apply a compression force to a suitable location on the top surface of the fuel tank.

[0135] It should be noted that the second preset position refers to the position of the mounting bracket 521 relative to the base 51 when it can provide a better clamping force for the clamping assembly 523. When facing different oil tank fixations, the second preset position can be different, and it does not refer to a fixed position.

[0136] In this embodiment, the fixing members 52323 are configured as two nuts, both of which are threadedly engaged with the pressure rod 52322 and are located on opposite sides of the connecting rod 52321. On the one hand, the two nuts can be rotated to clamp the connecting rod 52321, thereby fixing the relative position of the pressure rod 52322 and the connecting rod 52321. On the other hand, the two nuts can be rotated to adjust the position of the pressure rod 52322 relative to the connecting rod 52321 in the z-axis direction, thereby adjusting the clamping force.

[0137] In one embodiment of this embodiment, please refer to Figure 20 、 Figure 21 and Figure 23 The locking mechanism 53 includes a fixing plate 531 and a locking member 532. The fixing plate 531 is fixed to the base 51 and has a plurality of connection holes 5301. When the mounting bracket 521 slides to a first predetermined position relative to the base 51, the locking member 532 can pass through the corresponding connection holes 5301 and connect with the mounting bracket 521. This arrangement allows the mounting bracket 521 to be restrained by the locking member 532 and the fixing plate 531, resulting in a relatively simple structure and low cost.

[0138] Specifically, the locking member 532 can be connected to the mounting bracket 521 by means of a snap connection, abutment, threaded connection, etc., thereby playing a role in limiting movement. In this embodiment, the locking mechanisms 53 of the two pressing structures 5232 share a fixing plate 531, and each mounting bracket 521 is fixed in position by two locking members 532.

[0139] In one embodiment of this embodiment, please refer to Figure 20 、 Figure 21 and Figure 23 The mounting bracket 521 is provided with locking holes 5204 that threadably engage the locking members 532. Specifically, the number of locking holes 5204 corresponds to the number of locking members 532, both being two. This arrangement allows the mounting bracket 521 to be restrained by rotating the locking members 532, resulting in a simple locking method and low operational difficulty.

[0140] In this embodiment, the locking member 532 is configured as a hand screw, so that a worker can manually screw the locking member 532 to achieve restriction or release of restriction.

[0141] In one embodiment of this embodiment, please refer to Figure 20 、 Figure 21 and Figure 23The base 51 is provided with a sliding track 511 that slidably engages with the mounting bracket 521. The arrangement direction of the multiple connection holes 5301 is parallel to the extension direction of the sliding track 511. Specifically, to improve the guiding accuracy, two sliding tracks 511 are provided, and the two sliding tracks 511 slidably engage with the mounting bracket 521. By arranging the multiple connection holes 5301 in parallel with the extension direction of the sliding track 511, the locking member 532 can pass through the corresponding connection holes 5301 and connect with the mounting bracket 521.

[0142] In one embodiment of this embodiment, please refer to Figure 19 and Figure 24 The support mold assembly 54 includes a mounting plate 541 and a plurality of support modules 542. The plurality of support modules 542 are fixed to the mounting plate 541, and the mounting plate 541 is detachably connected to the base 51. With this arrangement, the plurality of support modules 542 can be replaced simultaneously by disassembling and assembling the mounting plate 541 on the base 51, which improves replacement efficiency.

[0143] In this embodiment, the plurality of support modules 542 are fixed on the mounting plate 541 by screws.

[0144] In one embodiment of this embodiment, please refer to Figure 19 and Figure 24 The backing assembly 54 includes a second locking member 543, one end of which abuts against the mounting plate 541, and the other end of which passes through the mounting plate 541 and engages with the base 51. This arrangement allows the mounting plate 541 to be assembled and disassembled from the base 51 through the second locking member 543, resulting in a relatively simple structure and reduced costs.

[0145] In this embodiment, the mounting plate 541 is provided with a strip-shaped hole 5401, and the second locking member 543 is configured as a thumb screw. The head of the thumb screw abuts the side of the mounting plate 541 facing away from the base 51. The shaft of the thumb screw passes through the strip-shaped hole 5401 and engages with the base 51, thereby achieving installation of the mounting plate 541 and the base 51. Because the second locking member 543 is configured as a thumb screw, a worker can manually turn the second locking member 543 to remove and assemble the mounting plate 541. Furthermore, the presence of the strip-shaped hole 5401 ensures that the thumb screw can engage with the base 51 after passing through, providing greater reliability. In this embodiment, to improve the relative positional accuracy of the mounting plate 541 and the base 51, a positioning pin is further provided on the base 51 to engage with the mounting plate 541.

[0146] In this embodiment, there are two second locking members 543 to enhance the connection strength between the mounting plate 541 and the base 51 .

[0147] In one embodiment of this embodiment, please refer to Figure 19 and Figure 24 The backing assembly 54 includes a guide plate 545 mounted on the mounting plate 541 and used to guide the fuel tank. It is understood that due to the varying sizes and shapes of different fuel tanks, the position and shape of the guide plate 545 may also vary. By placing the guide plate 545 on the mounting plate 541, when replacing a fuel tank that requires fixing, the corresponding guide plate 545 can be simultaneously replaced by replacing the mounting plate 541, resulting in more efficient replacement and improved processing efficiency.

[0148] In one embodiment of this embodiment, please refer to Figure 19 and Figure 24 The support mold assembly 54 includes a limit rod 544, which is mounted on a mounting plate 541 and is provided with a photoelectric sensor 5441. The limit rod 544 is used to abut against the side of the oil tank, and the photoelectric sensor 5441 is used to sense the distance of the oil tank. On the one hand, the presence of the limit rod 544 can ensure that the worker can push the oil tank into place, and the presence of the photoelectric sensor 5441 facilitates the automation of subsequent operations such as the clamping mechanism 52 clamping after detecting that the oil tank is in place. On the other hand, due to the different sizes and shapes of different oil tanks, the positions of the limit rod 544 for limiting the oil tank position and the photoelectric sensor 5441 for detecting the oil tank position are also different. Therefore, the limit rod 544 is set on the mounting plate 541 to facilitate the synchronous replacement of multiple support modules 542 and guide plates 545, further improving replacement efficiency and improving processing efficiency.

[0149] In this embodiment, there are two limiting rods 544 , and both limiting rods 544 are provided with a photoelectric sensor 5441 .

[0150] In one embodiment of this embodiment, the welding workbench 500 further includes a lifting mechanism 57 mounted on the base 51. The lifting mechanism 57 is used to support the fuel tank after loading and to lower the fuel tank after it is pushed into place, so that the fuel tank is supported by the multiple supporting modules 542. The lifting mechanism 57 is also used to raise the fuel tank after welding is completed to facilitate unloading of the fuel tank.

[0151] In one embodiment of this embodiment, the welding workbench 500 also includes a transition rod 55 and a transition plate 56, both of which are arranged on the base 51. The transition rod 55 is used to realize the loading of the oil tank from the transition platform 600 to the lifting mechanism 57, and the transition plate 56 is used to guide during the loading process of the oil tank to prevent the oil tank from falling out during the loading process.

[0152] In one embodiment of this implementation, the welding workbench 500 further includes a plurality of material frames 58 , which are used to accommodate weldments to be welded to the oil tank.

[0153] The embodiment of the present invention provides a transition platform 600, see Figure 18 and Figure 25 The transition platform 600 includes a base 61 and two guide rods 62. The two guide rods 62 are arranged on the base 61 in parallel and with an adjustable distance between them. The two guide rods 62 are used to jointly support the bottom surface of the fuel tank, allowing the fuel tank to slide along the guide rods 62. Each guide rod 62 has an avoidance groove 6201, which is used to avoid the relatively protruding structure on the bottom surface, so that the fuel tank can enter or leave the base 51 along the arrangement direction of the two guide rods 62.

[0154] In this embodiment, there are two transition tables 600, positioned opposite each other in the x-axis direction. A spacer is defined between the two transition tables 600, which serves as the loading / unloading area. The welding workstation 500 is positioned adjacent to the loading / unloading area in the y-axis direction. One of the two transition tables 600 is used for loading the fuel tank, while the other is used for unloading the fuel tank. In this embodiment, the universal feeding device also includes a feeding table 700, which is located on one side of the transition table 600, which is used for unloading, in the y-axis direction.

[0155] In other embodiments, only one transition table 600 may be provided to realize one of the functions of loading and unloading, or to realize both functions of loading and unloading at the same time.

[0156] Specifically, the base 51 and the base 61 are both fixed on the frame 100 to ensure that the base 51 and the base 61 have good relative position accuracy, which is conducive to improving the reliability of loading.

[0157] In this embodiment, the guide rod 62 extends parallel to the x-axis, and the two guide rods 62 are arranged in the y-axis, i.e., the two guide rods 62 are spaced apart and arranged parallel to each other in the y-axis. During the feeding process, a worker first places the fuel tank on the initial end of the guide rod 62 and pushes the fuel tank to the end along the x-axis. At this point, the relatively protruding structure on the bottom surface of the fuel tank corresponds to the position of the avoidance groove 6201 (opposite in the y-axis direction). When the worker pushes the fuel tank along the y-axis, the protruding structure can pass through the avoidance groove 6201, allowing the fuel tank to leave the guide rod 62 and enter the base 51 of the welding workbench 500. During the unloading process, after the oil tank is welded on the welding workbench 500, the worker pushes the oil tank to move along the y-axis direction. At this time, the relatively protruding structure on the bottom surface of the oil tank corresponds to the position of the avoidance groove 6201 (opposite in the y-axis direction), so that the oil tank can be smoothly moved to the two guide rods 62, and the protruding structure is staggered with the guide rod 62. The worker pushes the oil tank to move along the x-axis direction, so that the oil tank can slide along the guide rod 62 and leave.

[0158] In the transition platform 600, the distance between the two guide rods 62 can be adjusted to ensure that the guide rods 62 can avoid the relatively protruding structure on the bottom surface of the oil tank during the sliding process along the guide rods 62, and after the oil tank moves along the guide rods 62, the avoidance grooves 6201 on the guide rods 62 can allow the relatively protruding structure on the bottom surface of the oil tank to pass through, so that the oil tank can leave the guide rods 62 along the arrangement direction of the two guide rods 62 and enter or leave the base 51. Therefore, the transition platform 600 can meet the feeding requirements of different oil tanks, has strong versatility, effectively reduces processing costs, and improves processing efficiency.

[0159] In one embodiment of this embodiment, please refer to Figure 18 、 Figure 25 and Figure 26 The base 61 is provided with a guide structure 611, at least one guide rod 62 is slidably engaged with the guide structure 611, and the guide rod 62 is provided with a limiting structure 621, which can be connected to the guide structure 611 to limit the sliding of the guide rod 62. In this arrangement, the guide rod 62 and the base 61 can be relatively fixed by the limiting structure 621.

[0160] In this embodiment, the two guide rods 62 are both slidably matched with the guide structure 611 and are both provided with a limiting structure 621 so that the positions of the two guide rods 62 on the base 61 are adjustable, thereby improving versatility.

[0161] In one embodiment of this embodiment, please refer to Figure 18 、 Figure 25 and Figure 26 The limiting structure 621 includes a connecting block 6211, a clamping block 6212, and a driving member 6213. The connecting block 6211 is connected to the guide rod 62. One end of the clamping block 6212 is connected to the connecting block 6211 and is enclosed in the guide structure 611 together with the connecting block 6211. The other end of the clamping block 6212 is connected to the connecting block 6211 via the driving member 6213. The driving member 6213 is used to drive the other end closer to the connecting block 6211 so that the connecting block 6211 and the clamping block 6212 cooperate to clamp the guide structure 611. In this arrangement, the driving member 6213 can drive the connecting block 6211 and the clamping block 6212 to clamp the guide structure 611, thereby limiting the sliding of the guide rod 62 on the guide structure 611. At the same time, the driving member 6213 can also drive the connecting block 6211 and the clamping block 6212 to release the guide structure 611, thereby releasing the sliding restriction on the guide rod 62. The structure is relatively simple and helps to reduce costs.

[0162] In one embodiment of this embodiment, please refer to Figure 18 、 Figure 25 and Figure 26One end of the driving member 6213 abuts against the clamping block 6212, and the other end of the driving member 6213 passes through the clamping block 6212 and is threadedly engaged with the connecting block 6211. In this way, the restriction or release of the restriction can be achieved by rotating the driving member 6213, which is simple to operate and has high efficiency.

[0163] In this embodiment, the driving member 6213 is constructed as a hand screw, so that a worker can tighten the driving member 6213 by hand to achieve restriction or release of restriction.

[0164] In one embodiment of this embodiment, please refer to Figure 18 、 Figure 25 and Figure 26 To improve guiding accuracy, the guide structure 611 includes two parallel and spaced-apart slide bars 6111, and the guide bar 62 is provided with two sliders 622 that slide in cooperation with the corresponding slide bars 6111. Specifically, the connecting block 6211 is fixed to the sliders 622, allowing the limiting structure 621 to slide synchronously with the guide bar 62.

[0165] In one embodiment of this embodiment, please refer to Figure 18 、 Figure 25 and Figure 27 The guide rod 62 includes a detachably connected guide portion 613 and a clearance portion 614, which together form a clearance groove 6201. With this arrangement, the shape of the clearance groove 6201 can be adjusted by replacing the clearance portion 614, thereby helping the clearance groove 6201 to avoid the raised structure on the bottom surface of the fuel tank.

[0166] In one embodiment of this embodiment, please refer to Figure 18 、 Figure 25 and Figure 27 To enhance the overall structural strength of the two guide rods 62, the clearance portions 614 of the two guide rods 62 are connected and fixed by a connecting portion 615. It is understood that since the two clearance portions 614 are connected and fixed by the connecting portion 615, when adjusting the distance between the two guide rods 62, it is necessary to first remove the clearance portion 614, and then install the other clearance portion 614 after the distance is adjusted to the desired position. This arrangement facilitates adjustment of the clearance slot 6201 while also ensuring the overall structural strength of the two guide rods 62.

[0167] In one embodiment of this embodiment, please refer to Figure 18 、 Figure 25 and Figure 27In order to enable the guide portion 613 and the avoidance portion 614 to jointly support the bottom surface of the oil tank, the top sides of the guide portion 613 and the avoidance portion 614 are flush. In one embodiment of this embodiment, the transition platform 600 includes a shift rod 63, which is connected to the guide rod 62 and is used to abut against the side of the oil tank to limit the oil tank from leaving the guide rod 62. This arrangement can prevent the oil tank from falling from the side of the shift rod 63, thereby improving the safety of loading. In order to adapt to the anti-falling requirements of different oil tanks, the distance between the shift rod 63 and the guide rod 62 is adjustable in the arrangement direction. In this embodiment, the shift rod 63 is provided with an adjustment structure 631, and the shift rod 63 is adjusted to the distance from the guide rod 62 through the adjustment structure 631.

Claims

1. A welding device, characterized in that: include: frame; A plurality of top surface welding devices are mounted on the frame, each of the top surface welding devices comprising a first three-axis moving module, a first z-axis rotating mechanism, and a top surface welding unit connected in sequence, the first three-axis moving module being used to drive the first z-axis rotating mechanism to drive the top surface welding unit to move along the x-axis, y-axis, and z-axis directions, the first z-axis rotating mechanism being used to drive the top surface welding unit to rotate about the z-axis, and the top surface welding unit being used to weld a workpiece to the top surface of the fuel tank; A side welding device is installed on the frame, and the side welding device includes a second three-axis movable module, a first two-axis rotation module and a side welding unit connected in sequence. The second three-axis movable module is used to drive the first two-axis rotation module to drive the side welding unit to move along the x-axis direction, the y-axis direction and the z-axis direction. The first two-axis rotation module is used to drive the side welding unit to rotate around the z-axis and the axis perpendicular to the z-axis. The side welding unit is used to weld the weldment to the side of the oil tank.

2. The welding equipment according to claim 1, characterized in that The first z-axis rotation mechanism includes a z-axis rotation drive and a rotating base, the z-axis rotation drive is installed on the first three-axis movable module, the rotating base can be installed on the first three-axis movable module so as to rotate relatively around the z-axis, the top surface welding unit is installed on the rotating base, the z-axis rotation drive is provided with a first gear, and the rotating base is provided with a second gear, the first gear and the second gear are meshed, and the number of teeth of the first gear is less than the number of teeth of the second gear.

3. The welding equipment according to claim 2, characterized in that The top surface welding unit includes a first reference plate, a first hot mold assembly and a first fixed assembly, the first reference plate is connected to the first z-axis rotation mechanism, the first fixed assembly includes a welding driver and a first clamping structure for clamping the weldment, the welding driver is mounted on the first reference plate and connected to the first clamping structure; the first hot mold assembly includes a hot mold driver and a double-sided hot mold head, the hot mold driver is mounted on the first reference plate and connected to the double-sided hot mold head; The hot mold driver is used to drive the double-sided hot mold head to move to the bottom side of the first clamping structure so that the top side of the double-sided hot mold head is opposite to the weldment in the z-axis direction, and the hot mold driver is also used to drive the double-sided hot mold head to move to abut against the oil tank, and the welding drive is used to drive the first clamping structure to drive the weldment to move along the z-axis direction so that the weldment abuts against the double-sided hot mold head or the oil tank.

4. The welding equipment according to claim 3, characterized in that The hot mold driver includes a first hot mold driver and a second hot mold driver. The first hot mold driver is mounted on the first reference plate and connected to the second hot mold driver. The double-sided hot mold head is arranged on the second hot mold driver. The first hot mold driver and the second hot mold driver are used to cooperate to drive the double-sided hot mold head to move along the z-axis direction and a direction perpendicular to the z-axis direction.

5. The welding equipment according to claim 1, characterized in that The first two-axis rotation module includes a first rotation mechanism and a second rotation mechanism, the first rotation mechanism includes a first rotation drive member and a first connecting seat, the first connecting seat can be rotatably mounted on the second three-axis movable module around the z-axis, the first rotation drive member is mounted on the second three-axis movable module and is connected to the first connecting seat, the second rotation mechanism includes a second rotation drive member and a second connecting seat, the second connecting seat can be relatively rotatably mounted on the first connecting seat along an axis perpendicular to the z-axis, the second rotation drive member is mounted on the first connecting seat and is connected to the second connecting seat, and the side welding unit is arranged on the second connecting seat.

6. The welding equipment according to claim 1, characterized in that The side welding unit includes a second reference plate, a second hot mold assembly and a second fixed assembly, the second reference plate is connected to the first biaxial rotation module, the second hot mold assembly and the second fixed assembly are both mounted on the second reference plate, the second hot mold assembly includes a first hot mold head, a second hot mold head and a first translation drive, the first hot mold head is fixed to the second reference plate, the first translation drive is arranged on the second reference plate and connected to the second hot mold head, the first translation drive is used to drive the second hot mold head to move to abut against the oil tank, the second fixed assembly includes a second clamping structure and a second translation drive, the second translation drive is arranged on the second reference plate and connected to the second clamping structure, the second translation drive is used to drive the second clamping structure to drive the weldment to move to abut against the first hot mold head and the oil tank respectively.

7. The welding device according to claim 6, characterized in that The side welding unit includes a dislocation driving mechanism, which includes a dislocation moving seat and a dislocation driving member. The first translation driving member and the second translation driving member are both arranged on the dislocation moving seat. The dislocation driving member is arranged on the second reference plate and connected to the dislocation moving seat. The dislocation driving member is used to drive the dislocation moving seat to move between a first position and a second position. When the dislocation moving seat is located at the first position, the second clamping structure is opposite to the first hot die head, and the second hot die head is opposite to the welding position of the oil tank. When the dislocation moving seat is located at the second position, the second clamping structure is opposite to the welding position of the oil tank.

8. The welding device according to claim 6, characterized in that The second clamping structure is provided with a rotation adjustment mechanism and a camera, wherein the camera is used to obtain an image of the fuel tank so that the rotation adjustment mechanism can adjust the weldment on the second clamping structure to align with the fuel tank based on the image.

9. The welding device according to claim 1, characterized in that The welding equipment includes a welding workbench and a transition table fixed to the frame, the welding workbench includes a base, a clamping mechanism and a locking mechanism, the clamping mechanism includes a mounting bracket, a flip driving member and a clamping assembly, the mounting bracket is slidably matched with the base and can slide relatively to a first preset position, the flip driving member is mounted on the mounting bracket and connected to the clamping assembly, the flip driving member is used to drive the clamping assembly to press the top surface of the oil tank, the locking mechanism is provided on the base and connected to the mounting bracket to limit the mounting bracket to the first preset position; The transition platform includes a base and two guide rods, and the two guide rods are arranged on the base in parallel and with an adjustable relative distance. The two guide rods are used to jointly support the bottom surface of the oil tank so that the oil tank can slide along the guide rods. Both guide rods are provided with avoidance grooves, and the avoidance grooves are used to avoid the relatively protruding structures on the bottom surface so that the oil tank can enter or leave the base along the arrangement direction of the two guide rods.

10. The welding device according to claim 1, characterized in that The welding equipment includes a back welding device, which includes a biaxial movable module, a second biaxial rotating module and a back welding unit connected in sequence. The biaxial movable module is used to drive the second biaxial rotating module to drive the back welding unit to move along the x-axis and the z-axis directions. The second biaxial rotating module is used to drive the back welding unit to rotate around the z-axis and an axis perpendicular to the z-axis. The back welding unit is used to weld the weldment to the back of the oil tank.

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