Online welding device for L-shaped leads of multiple battery assemblies

Abstract

The utility model relates to the technical field of photovoltaic equipment, in particular to a multi-group battery assembly L-shaped lead online welding device which comprises a machine frame body and a mechanical arm installed on the machine frame body. The top of the rack body is provided with two short edge feeding mechanisms symmetrically arranged with the mechanical arm as the symmetry axis and two long edge feeding mechanisms symmetrically arranged with the mechanical arm as the symmetry axis. Through the cooperation of the two groups of short edge feeding mechanisms, the long edge feeding mechanism, the first welding gun, the mechanical arm and the material suction mechanism, the L-shaped bus bar can correspond to bus bar welding points of a plurality of groups of battery strings, and finally, different positions are welded by moving the welding unit, so that after the L-shaped bus bar and the bus bars of the battery strings are welded and combined, the welding efficiency is improved. Therefore, through cooperation of the multiple structures, rapid welding of the lead wires of the multiple groups of battery strings can be achieved, the welding waiting time can be shortened, and the welding efficiency and the production efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic equipment, and in particular to an online welding device for L-shaped leads of multiple battery components. Background Art

[0002] Photovoltaic modules can convert solar energy into electrical energy in daily life, greatly reducing energy consumption. Currently, photovoltaic modules are gradually being popularized. In the production process of solar cell modules, the battery string on the battery module is composed of a plurality of battery cells arranged and combined, and then the battery string is welded through leads to form an overall circuit.

[0003] The existing battery string lead welding is mostly carried out manually, which is time-consuming, labor-intensive and inefficient. At the same time, its quality stability is poor, the unqualified rate is high, and it causes waste of product raw materials, which is not conducive to product promotion. Although some automatic welding equipment has appeared on the market, it is difficult to meet the needs of rapid welding of multiple groups of battery string leads when they are used in practice, and there are problems with low welding efficiency and production efficiency. Utility Model Content

[0004] The utility model provides an online welding device for L-shaped leads of multiple battery assemblies to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A multi-group battery assembly L-shaped lead online welding device comprises a frame body and a mechanical arm mounted on the frame body, the top of the frame body is provided with two short side feeding mechanisms symmetrically arranged with the mechanical arm as the symmetry axis and two long side feeding mechanisms symmetrically arranged with the mechanical arm as the symmetry axis, the long side feeding mechanism is arranged on one side of the short side feeding mechanism, and the top of the frame body is provided with two first welding guns symmetrically arranged with the mechanical arm as the symmetry axis, the first welding gun is arranged at the diagonal of the short side feeding mechanism and the long side feeding mechanism, and is used for welding the two ends of the welding strips respectively conveyed by the short side feeding mechanism and the long side feeding mechanism to form An L-shaped busbar is provided, and two mobile welding units are arranged on the side of the long side feeding mechanism away from the short side feeding mechanism, the two mobile welding units are symmetrically arranged with the robot arm as the symmetry axis, and a conveying unit is arranged on the side of the mobile welding unit away from the long side feeding mechanism, the conveying unit is used to convey the tooling plate on which multiple groups of battery strings are placed, and a suction mechanism for sucking the L-shaped body welding strip is fixedly installed on the robot arm, the mobile welding unit moves respectively along the X, Y and Z axes above the tooling plate, and the mobile welding unit is used to integrally weld the battery strings on the tooling plate and the L-shaped busbar placed by the suction mechanism.

[0007] Preferably, the short edge feeding mechanism includes a first linear module installed on a frame body, a first cylinder connected to a slide of the first linear module, a finger cylinder connected to an output end of the first cylinder, a clamping plate connected to the finger cylinder, and a first cutting assembly arranged on one side of the first linear module and connected to the frame body, wherein the first cutting assembly is used to cut the welding strip conveyed on the short edge feeding mechanism.

[0008] Preferably, the long side feeding mechanism includes a second linear module installed on the frame body, a clamping assembly connected to the slide of the second linear module, and a second cutting assembly arranged on one side of the second linear module and connected to the frame body, the clamping assembly is used to convey the welding strip on the long side feeding mechanism, and the second cutting assembly is used to cut the welding strip conveyed on the long side feeding mechanism.

[0009] Preferably, the mobile welding unit includes a linear module assembly that moves along the X and Y axes respectively, a support plate connected to the linear module assembly, a second cylinder installed on the support plate, a slide plate connected to the output end of the second cylinder, a third cylinder installed on the slide plate, and a second welding gun connected to the output end of the third cylinder, wherein the second welding gun is used to integrally weld the L-shaped busbar and battery string on the tooling plate.

[0010] Preferably, the suction mechanism includes a connector connected to the robotic arm, a U-shaped frame installed on the connector, a plurality of positioning support plates installed on the surface of the U-shaped frame, and mini suction cups respectively installed on the positioning support plates.

[0011] Preferably, the short-side feeding mechanism further includes a first discharge device mounted on the frame body and a first guiding and straightening component arranged on one side of the first cutting component.

[0012] Preferably, the long-side feeding mechanism further comprises a second feeding device mounted on the frame body and a second guiding and straightening component arranged on one side of the second cutting component.

[0013] Preferably, the clamping assembly includes a fourth cylinder installed on the second linear module slide, a special-shaped plate connected to the output end of the fourth cylinder, a fifth cylinder installed on the special-shaped plate, a movable plate connected to the output end of the fifth cylinder, a traction plate movably connected to one end of the movable plate, and a clamping block movably connected to the other end of the traction plate, and the other end of the clamping block is movably connected to the special-shaped plate.

[0014] Preferably, the special-shaped plate is slidably arranged on a slide table of the second linear module, and a clamping groove is provided on the special-shaped plate, and one end of the clamping block is movably connected in the clamping groove.

[0015] Preferably, two sixth cylinders are symmetrically arranged with the robotic arm as the axis of symmetry, and the sixth cylinder is arranged at the inner angle between the short-side feeding mechanism and the long-side feeding mechanism. The sixth cylinder is arranged at an angle, and the output end of the sixth cylinder is connected to the seventh cylinder, and the output end of the seventh cylinder is connected to a pressure plate.

[0016] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0017] In the utility model, through the cooperation of two groups of short-side feeding mechanisms, the long-side feeding mechanism and the first welding gun, the two welding strips can be welded into an L-shaped busbar, and then with the work of the mechanical arm and the suction mechanism, the L-shaped busbar corresponds to the busbar welding points of multiple groups of battery strings. Finally, by moving the welding unit to weld at different positions, the L-shaped busbar and the busbar of the battery string are welded and merged to form the leads of the battery assembly. In this way, through the cooperation of the above-mentioned multiple structures, the rapid welding of multiple groups of battery string leads can be realized, the waiting time for welding can be reduced, and the welding efficiency and production efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the short side feeding mechanism and the long side feeding mechanism of the utility model;

[0020] Figure 3 It is a schematic diagram of the short side feeding mechanism of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the discharge device of the utility model;

[0022] Figure 5 It is a partial top view structural schematic diagram of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the material clamping assembly of the utility model;

[0024] Figure 7 This is a schematic diagram of the structure of the mobile welding unit of the utility model;

[0025] Figure 8 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0026] Fig. 9 This is a schematic diagram of the material suction mechanism of the utility model;

[0027] Fig.10 This is a schematic diagram of the ninth cylinder and the tenth cylinder of the utility model.

[0028] In the figure: 1. Frame; 2. Robotic arm;

[0029] 3. Short side feeding mechanism; 31. First linear module; 32. First cylinder; 33. Finger cylinder; 34. Clamping plate; 35. First cutting assembly; 36. First unloading device; 37. First guiding and straightening assembly; 38. Ninth cylinder; 39. Tenth cylinder;

[0030] 4. Long side feeding mechanism; 41. Second linear module;

[0031] 42. material clamping assembly; 421. fourth cylinder; 422. special-shaped plate; 423. fifth cylinder; 424. moving plate; 425. traction plate; 426. clamping block; 427. clamping groove;

[0032] 43. Second cutting assembly; 44. Second material discharge device; 45. Second guiding and straightening assembly;

[0033] 5. The first welding gun;

[0034] 6. Mobile welding unit; 61. Linear module assembly; 62. Support plate; 63. Second cylinder; 64. Sliding plate; 65. Third cylinder; 66. Second welding gun; 67. Eighth cylinder; 68. Steady seat;

[0035] 7. Conveying unit;

[0036] 8. Suction mechanism; 81. Connector; 82. U-shaped frame; 83. Positioning support plate; 84. Mini suction cup;

[0037] 9. Sixth cylinder; 10. Seventh cylinder; 11. Pressure plate. DETAILED DESCRIPTION

[0038] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0040] Example

[0041] like Figure 1-10As shown, the utility model provides an online welding device for L-shaped leads of multiple battery assemblies, comprising a frame body 1 and a robot arm 2 installed on the frame body 1, two short-side feeding mechanisms 3 symmetrically arranged with the robot arm 2 as the symmetry axis and two long-side feeding mechanisms 4 symmetrically arranged with the robot arm 2 as the symmetry axis are arranged on the top of the frame body 1, the long-side feeding mechanism 4 is arranged on one side of the short-side feeding mechanism 3, and two first welding guns 5 symmetrically arranged with the robot arm 2 as the symmetry axis are installed on the top of the frame body 1, the first welding gun 5 is arranged at the diagonal position of the short-side feeding mechanism 3 and the long-side feeding mechanism 4, and is used to respectively deliver the welding strips of the short-side feeding mechanism 3 and the long-side feeding mechanism 4 The two ends are welded to form an L-shaped busbar, and two mobile welding units 6 are arranged on the side of the long side feeding mechanism 4 away from the short side feeding mechanism 3. The two mobile welding units 6 are symmetrically arranged with the robot arm 2 as the symmetry axis, and a conveying unit 7 is arranged on the side of the mobile welding unit 6 away from the long side feeding mechanism 4. The conveying unit 7 is used to convey the tooling plate on which multiple groups of battery strings are placed, and a suction mechanism 8 for sucking the L-shaped body welding strip is fixedly installed on the robot arm 2. The mobile welding unit 6 moves along the X, Y, and Z axes above the tooling plate, and the mobile welding unit 6 is used to weld the battery strings on the tooling plate and the L-shaped busbar placed by the suction mechanism 8 as a whole.

[0042] In this embodiment, the short edge feeding mechanism 3 includes a first linear module 31 installed on the frame body 1, a first cylinder 32 connected to the slide of the first linear module 31, a finger cylinder 33 connected to the output end of the first cylinder 32, a clamping plate 34 connected to the finger cylinder 33, and a first cutting component 35 arranged on one side of the first linear module 31 and connected to the frame body 1. The first cutting component 35 is used to cut the welding strip conveyed on the short edge feeding mechanism 3.

[0043] Specifically, the first air cylinder 32 is used to drive the finger air cylinder 33 to move forward or backward, so that the finger air cylinder 33 can drive the clamping plate 34 to clamp the welding strip or reset it away from the welding strip, and the welding strip will not be touched when it is reset away from the welding strip, thereby ensuring the stability of the welding strip. The first cutting component 35 is a conventional structure, which mainly relies on a pneumatic component to drive the cutter to perform the downward cutting work, thereby completing the cutting of the short side welding strip.

[0044] To be more specific, the short-side feeding mechanism 3 also includes a first discharge device 36 installed on the frame body 1 and a first guide and straightening component 37 arranged on one side of the first cutting component 35. The front and rear side doors on the frame body 1 can be opened, and when the rear side door is opened, it is convenient for the staff to place the welding tape roll on the first discharge device 36 to meet the welding tape passing through the first discharge device 36 and then through the first guide and straightening component 37 to enter the first cutting component 35. The first discharge device 36 and the first guide and straightening component 37 are conventional structures in the field and are applied to various equipment. The structure has been well known and applied by technicians in this field and will not be elaborated in detail herein.

[0045] To be more specific, a ninth cylinder 38 is respectively arranged between the first cutting component 35 and the first guide and straightening component 37, and between the second cutting component 43 and the second guide and straightening component 45, and the output end of the ninth cylinder 38 is connected to a stop plate, and the short side feeding mechanism 3 and the long side feeding mechanism 4 are respectively provided with a tenth cylinder 39 for driving the first cutting component 35 and the second cutting component 43 to move. The ninth cylinder 38 drives the stop plate to descend, so that the stop plate can press the welding strip before cutting, thereby preventing the problem of recycling the welding strip after cutting, and when the welding strip is cut, the first cutting component 35 and the second cutting component 43 are both arranged on the front side for cutting, and after the welding strip is cut, the tenth cylinder 39 can drive the first cutting component 35 or the second cutting component 43 to move backward, so that the welding strip can be partially exposed, which is convenient for the finger cylinder 33 or the clamping component 42 to pull the welding strip again.

[0046] In this embodiment, the long side feeding mechanism 4 includes a second linear module 41 installed on the frame body 1, a clamping assembly 42 connected to the slide of the second linear module 41, and a second cutting assembly 43 arranged on one side of the second linear module 41 and connected to the frame body 1. The clamping assembly 42 is used to convey the solder strip on the long side feeding mechanism 4, and the second cutting assembly 43 is used to cut the solder strip conveyed on the long side feeding mechanism 4. The clamping assembly 42 includes a fourth cylinder 421 installed on the slide of the second linear module 41, and a fourth cylinder 421 connected to the fourth cylinder 421. The special-shaped plate 422 at the output end of the second linear module 41, the fifth cylinder 423 installed on the special-shaped plate 422, the moving plate 424 connected to the output end of the fifth cylinder 423, the traction plate 425 movably connected to one end of the moving plate 424, and the clamping block 426 movably connected to the other end of the traction plate 425, the other end of the clamping block 426 is movably connected to the special-shaped plate 422, the special-shaped plate 422 is slidably set on the slide table of the second linear module 41, and the special-shaped plate 422 is provided with a clamping groove 427, and one end of the clamping block 426 is movably connected in the clamping groove 427.

[0047] Specifically, the second cutting component 43 is a conventional structure, which mainly relies on a pneumatic component to drive the cutter to perform the downward cutting work, thereby completing the cutting work of the long side welding strip, and when the long side is pulled, one end of the welding strip can be set in the clamping groove 427, and then when the fifth cylinder 423 contracts, it can drive the rotatably connected traction plate 425 to push the clamping block 426, so that one end of the clamping block 426 can press one end of the welding strip, thereby cooperating with the work of the second linear module 41 to pull the welding strip.

[0048] To be more specific, the long-side feeding mechanism 4 also includes a second discharge device 44 installed on the frame body 1 and a second guide and straightening component 45 arranged on one side of the second cutting component 43. When the rear door on the frame body 1 is opened, it is convenient for the staff to place the welding tape roll on the second discharge device 44 to meet the welding tape passing through the second discharge device 44 and then through the second guide and straightening component 45 to enter the second cutting component 43. The second discharge device 44 and the second guide and straightening component 45 are conventional structures in the field and are applied to various equipment. The structure has been well known and applied by technicians in this field and will not be elaborated in detail herein.

[0049] In this embodiment, the mobile welding unit 6 includes a linear module assembly 61 that moves along the X and Y axes respectively, a support plate 62 connected to the linear module assembly 61, a second cylinder 63 installed on the support plate 62, a slide plate 64 connected to the output end of the second cylinder 63, a third cylinder 65 installed on the slide plate 64, and a second welding gun 66 connected to the output end of the third cylinder 65. The second welding gun 66 is used to integrally weld the L-shaped busbar and the battery string on the tooling plate. The output end of the third cylinder 65 is connected to the eighth cylinder 67, and the output end of the eighth cylinder 67 is connected to a stabilizing seat 68. The second welding gun 66 is fixedly mounted on the stabilizing seat 68.

[0050] Specifically, the linear module assembly 61 that moves along the X and Y axes is mainly composed of two linear module bodies. Its structure is a basic state well known to technical personnel in this field. No structural design has been performed and no detailed explanation will be given. At the same time, a bonding plate that can be raised and lowered by a pneumatic component is also installed on the slide plate 64. Its function is to position the L-shaped busbar before welding to prevent the L-shaped busbar from being displaced during welding.

[0051] In this embodiment, the suction mechanism 8 includes a connecting piece 81 connected to the robot arm 2, a U-shaped frame 82 installed on the connecting piece 81, a plurality of positioning support plates 83 installed on the surface of the U-shaped frame 82, and mini suction cups 84 respectively installed on the positioning support plates 83.

[0052] Specifically, multiple mini suction cups 84 are evenly arranged along the outer side of the U-shaped frame 82 and are in a U-shaped state, so that the L-shaped busbars at the two feeding mechanisms can be sucked, and double-station feeding can reduce the waiting time for welding, thereby improving welding efficiency and production efficiency.

[0053] In this embodiment, two sixth cylinders 9 are symmetrically arranged with the robot arm 2 as the symmetry axis at the top of the frame body 1. The sixth cylinder 9 is arranged at the inner angle between the short-side feeding mechanism 3 and the long-side feeding mechanism 4. The sixth cylinder 9 is inclined, and the output end of the sixth cylinder 9 is connected to the seventh cylinder 10, and the output end of the seventh cylinder 10 is connected to the pressure plate 11.

[0054] Specifically, the sixth cylinder 9 is used to push the seventh cylinder 10 toward the first welding gun 5, and the seventh cylinder 10 pushes the pressure plate 11 to press on the top of the first welding gun 5, thereby pressing one end of the welding strips of the short side feeding mechanism 3 and the long side feeding mechanism 4, prompting one end of the two welding strips to be welded and form an L-shaped busbar.

[0055] The working principle and use process of the utility model are as follows: before use, multiple battery strings can be placed on the tooling board after the previous process, and a layer of isolation strips is placed on the surface of the battery string to avoid the problem of short circuit after the L-shaped busbar and the battery string are welded. The overall process is the existing basic operation process and will not be elaborated in detail; when in use, the tooling board on which the battery string is placed is conveyed to one side of the robot arm 2 through the conveying unit 7. At the same time, a welding strip passes through the first guiding and straightening component 37 on the first discharge device 36 and enters the incision of the first cutting component 35, and is cut by the finger The cylinder 33 drives the clamping plate 34 to clamp the welding strip, and the welding strip can be pulled with the operation of the first linear module 31. After being pulled to a certain length, the ninth cylinder 38 can press and fix the welding strip, and then the welding strip is cut by the first cutting assembly 35. After cutting, the welding strip can be transported to the first welding gun 5 through the operation of the first linear module 31, and the welding strip at the long side feeding mechanism 4 is clamped by the fifth cylinder 423 after driving the moving plate 424, the traction plate 425 and the clamping block 426, and the welding strip is pulled to a certain length. After that, the welding strip is cut by the second cutting assembly 43, and then the welding strip is transported to the first welding gun 5 by the second linear module 41, and abuts against the short-side welding strip, thereby the seventh cylinder 10 pushes the pressing plate 11 to press, so that the first welding gun 5 can weld the short-side welding strip and one end of the long-side welding strip to form an integrated L-shaped bus strip, and then the suction mechanism 8 is driven by the robot arm 2 to suck the L-shaped bus strip, so that the robot arm 2 can place the L-shaped bus strip on the tooling plate on the conveying unit 7, and make the L-shaped bus strip correspond to multiple groups of battery strings. The busbar welding points are finally moved in the X, Y, and Z directions by the mobile welding unit 6, and the operation of the eighth cylinder 67 causes the second welding gun 66 to weld the busbar welding points at different positions, so that the L-shaped busbar is welded and merged with the busbar of the battery string to form the leads of the battery assembly. In this way, the rapid welding of multiple groups of battery string leads can be achieved through the cooperation of the above-mentioned multiple structures, and the function of the robot arm 2 for double-station loading and welding can reduce the waiting time for welding, thereby improving the welding efficiency and production efficiency.

[0056] In the present utility model, the term "plurality" refers to two or more than two, unless otherwise clearly defined. The term "and / or" used in this article includes any and all combinations of one or more related listed items. The terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "connection" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0057] It should be noted that when an element is referred to as being "assembled on", "installed on", "fixed on" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0058] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0059] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An online welding device for L-shaped leads of multiple battery assemblies, characterized in that: The invention comprises a frame body (1) and a mechanical arm (2) mounted on the frame body (1); the top of the frame body (1) is provided with two short-side feeding mechanisms (3) symmetrically arranged with the mechanical arm (2) as the symmetry axis and two long-side feeding mechanisms (4) symmetrically arranged with the mechanical arm (2) as the symmetry axis; the long-side feeding mechanism (4) is arranged on one side of the short-side feeding mechanism (3); and the top of the frame body (1) is provided with two first welding guns (5) symmetrically arranged with the mechanical arm (2) as the symmetry axis; the first welding guns (5) are arranged at the diagonal positions between the short-side feeding mechanism (3) and the long-side feeding mechanism (4) and are used to weld the two ends of the welding strips respectively transported by the short-side feeding mechanism (3) and the long-side feeding mechanism (4) to form an L-shaped body. A busbar, and two mobile welding units (6) are arranged on the side of the long side feeding mechanism (4) away from the short side feeding mechanism (3), the two mobile welding units (6) are symmetrically arranged with the robot arm (2) as the symmetry axis, and a conveying unit (7) is arranged on the side of the mobile welding unit (6) away from the long side feeding mechanism (4), the conveying unit (7) is used to convey a tooling plate on which multiple groups of battery strings are placed, and a suction mechanism (8) for sucking L-shaped body welding strips is fixedly installed on the robot arm (2), the mobile welding unit (6) moves above the tooling plate along the X, Y and Z axial directions respectively, and the mobile welding unit (6) is used to integrally weld the battery strings on the tooling plate and the L-shaped busbar placed by the suction mechanism (8).

2. The device for online welding of L-shaped leads of multiple battery assemblies according to claim 1, characterized in that: The short-side feeding mechanism (3) comprises a first linear module (31) mounted on a frame body (1), a first cylinder (32) connected to a slide table of the first linear module (31), a finger cylinder (33) connected to an output end of the first cylinder (32), a clamping plate (34) connected to the finger cylinder (33), and a first cutting assembly (35) arranged on one side of the first linear module (31) and connected to the frame body (1), wherein the first cutting assembly (35) is used to cut the welding strip conveyed on the short-side feeding mechanism (3).

3. The device for online welding of L-shaped leads of multiple battery assemblies according to claim 1, characterized in that: The long-side feeding mechanism (4) comprises a second linear module (41) mounted on a frame body (1), a clamping assembly (42) connected to a slide table of the second linear module (41), and a second cutting assembly (43) arranged on one side of the second linear module (41) and connected to the frame body (1); the clamping assembly (42) is used to transport the solder strip on the long-side feeding mechanism (4), and the second cutting assembly (43) is used to cut the solder strip transported on the long-side feeding mechanism (4).

4. The device for online welding of L-shaped leads of multiple battery assemblies according to claim 1, characterized in that: The mobile welding unit (6) comprises a linear module assembly (61) that moves along the X and Y axes respectively, a support plate (62) connected to the linear module assembly (61), a second cylinder (63) installed on the support plate (62), a slide plate (64) connected to the output end of the second cylinder (63), a third cylinder (65) installed on the slide plate (64), and a second welding gun (66) connected to the output end of the third cylinder (65), wherein the second welding gun (66) is used to integrally weld the L-shaped busbar and the battery string on the tooling plate.

5. The device for online welding of L-shaped leads of multiple battery assemblies according to claim 1, characterized in that: The material suction mechanism (8) comprises a connecting piece (81) connected to the mechanical arm (2), a U-shaped frame (82) mounted on the connecting piece (81), a plurality of positioning support plates (83) mounted on the surface of the U-shaped frame (82), and mini suction cups (84) respectively mounted on the positioning support plates (83).

6. The device for online welding of L-shaped leads of multiple battery assemblies according to claim 2, characterized in that: The short-side feeding mechanism (3) further comprises a first discharge device (36) mounted on the frame body (1) and a first guide and straightening component (37) arranged on one side of the first cutting component (35).

7. The device for online welding of L-shaped leads of multiple battery assemblies according to claim 3, characterized in that: The long-side feeding mechanism (4) further comprises a second feeding device (44) mounted on the frame body (1) and a second guiding and straightening component (45) arranged on one side of the second cutting component (43).

8. The device for online welding of L-shaped leads of multiple battery assemblies according to claim 3, characterized in that: The clamping assembly (42) comprises a fourth cylinder (421) mounted on the slide of the second linear module (41), a special-shaped plate (422) connected to the output end of the fourth cylinder (421), a fifth cylinder (423) mounted on the special-shaped plate (422), a moving plate (424) connected to the output end of the fifth cylinder (423), a traction plate (425) movably connected to one end of the moving plate (424), and a clamping block (426) movably connected to the other end of the traction plate (425), wherein the other end of the clamping block (426) is movably connected to the special-shaped plate (422).

9. The device for online welding of L-shaped leads of multiple battery assemblies according to claim 8, characterized in that: The special-shaped plate (422) is slidably arranged on the slide table of the second linear module (41), and a clamping groove (427) is provided on the special-shaped plate (422), and one end of the clamping block (426) is movably connected in the clamping groove (427).

10. The device for online welding of L-shaped leads of multiple battery assemblies according to claim 1, characterized in that: The top of the frame body (1) is provided with two sixth cylinders (9) symmetrically arranged with the mechanical arm (2) as the symmetry axis. The sixth cylinder (9) is arranged at the inner angle between the short-side feeding mechanism (3) and the long-side feeding mechanism (4). The sixth cylinder (9) is arranged in an inclined manner, and the output end of the sixth cylinder (9) is connected to the seventh cylinder (10), and the output end of the seventh cylinder (10) is connected to the pressure plate (11).

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