CN222608269U - Online welding device for L-shaped leads of multiple groups of battery components - Google Patents

Abstract

The utility model relates to the technical field of photovoltaic equipment, in particular to an on-line welding device for L-shaped leads of a plurality of groups of battery components, which comprises a machine frame body and mechanical arms arranged on the machine frame body, wherein two short-side feeding mechanisms which are symmetrically arranged by taking the mechanical arms as symmetry axes and two long-side feeding mechanisms which are symmetrically arranged by taking the mechanical arms as symmetry axes are arranged at the top of the machine frame body. According to the utility model, through the matching of the two groups of short-side feeding mechanisms, the long-side feeding mechanisms, the first welding gun, the mechanical arm and the suction mechanism, the L-shaped bus bar can correspond to bus bar welding points of a plurality of groups of battery strings, and finally, the welding units are moved to weld different positions, so that after the L-shaped bus bar and the bus bar of the battery strings are welded and combined, the lead wires of the battery assembly are formed, the rapid welding of a plurality of groups of battery string lead wires can be realized through the matching of the multiple structures, the welding waiting time can be reduced, and the welding efficiency and the production efficiency are improved.

Description

Online welding device for L-shaped leads of multiple groups of battery components

Technical Field

The utility model relates to the technical field of photovoltaic equipment, in particular to an on-line welding device for L-shaped leads of a plurality of groups of battery assemblies.

Background

The photovoltaic module can convert solar energy into electric energy in daily life, consumption of energy is greatly reduced, the photovoltaic module is gradually popularized and used at present, in the production process of the solar module, a battery string on the battery module is formed by arranging and combining a plurality of battery pieces, and then the battery string is welded through a lead wire to form an integral loop.

When the existing battery string leads are welded, most of the existing battery string leads are welded in a manual mode, so that time and labor are wasted, the efficiency is low, meanwhile, the quality stability is poor, the reject ratio is high, waste of product raw materials is caused, popularization of products is not facilitated, although some automatic welding equipment appears on the existing market, the problem that the welding efficiency and the production efficiency are low due to the fact that the quick welding of multiple groups of battery string leads is difficult to meet when the automatic welding equipment is specifically used is solved.

Disclosure of utility model

The utility model provides an on-line welding device for L-shaped leads of a plurality of groups of battery components, which aims to solve the problems in the background technology.

In order to solve the technical problems, the utility model adopts the following technical scheme:

The utility model provides an multiunit battery pack L type lead wire on-line welding device, includes the frame body and installs the robotic arm on the frame body, the top of the frame body is equipped with two and uses robotic arm to set up's minor face feed mechanism and two and use robotic arm to set up as symmetry axis symmetry's long limit feed mechanism, long limit feed mechanism locates one side of short limit feed mechanism, just the first welding rifle that two use robotic arm to set up as symmetry axis symmetry is installed at the top of the frame body, first welding rifle locates the diagonal angle department of short limit feed mechanism and long limit feed mechanism to be used for carrying out both ends welding to the welding strip that short side feed mechanism and long limit feed mechanism carried respectively and make it form L type body converging strip, just one side that long limit feed mechanism kept away from short side feed mechanism is provided with two and removes the welding unit, two remove the welding unit and use robotic arm to set up as symmetry axis symmetry, just remove one side that the welding unit kept away from long side of feed mechanism is provided with the conveying unit, the conveying unit is used for carrying out the transport string of multiunit battery and is used for carrying out the welding strip and carries out the welding strip on the welding strip is used for carrying out the welding strip along the welding strip with L type welding strip and carries out the welding tool string on the L type body and is used for carrying out the welding device that the welding strip is used for moving the welding strip to carry out the welding device.

Preferably, the short-side feeding mechanism comprises a first linear module arranged on the frame body, a first cylinder connected to the sliding table of the first linear module, a finger cylinder connected to the 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 with the frame body, wherein the first cutting assembly is used for cutting a welding strip conveyed on the short-side feeding mechanism.

Preferably, the long-side feeding mechanism comprises a second linear module arranged on the frame body, a clamping assembly connected to the sliding table of the second linear module, and a second cutting assembly arranged on one side of the second linear module and connected with the frame body, wherein the clamping assembly is used for conveying a welding strip on the long-side feeding mechanism, and the second cutting assembly is used for cutting the welding strip conveyed on the long-side feeding mechanism.

Preferably, the mobile welding unit comprises a linear module assembly moving along X, Y axes, a support plate connected to the linear module assembly, a second air cylinder arranged on the support plate, a sliding seat plate connected to the output end of the second air cylinder, a third air cylinder arranged on the sliding seat plate and a second welding gun connected to the output end of the third air cylinder, wherein the second welding gun is used for integrally welding an L-shaped busbar and a battery string on the tooling plate.

Preferably, the material sucking mechanism comprises a connecting piece connected to the mechanical arm, a U-shaped frame arranged on the connecting piece, a plurality of positioning support plates arranged on the surface of the U-shaped frame and mini sucking discs respectively arranged on the positioning support plates.

Preferably, the short-side feeding mechanism further comprises a first discharging device arranged on the frame body and a first guide straightening component arranged on one side of the first cutting component.

Preferably, the long-edge feeding mechanism further comprises a second discharging device arranged on the frame body and a second guiding and straightening assembly arranged on one side of the second cutting assembly.

Preferably, the clamping assembly comprises a fourth cylinder arranged on the second linear module sliding table, a profiled bar connected to the output end of the fourth cylinder, a fifth cylinder arranged on the profiled bar, 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, wherein the other end of the clamping block is movably connected to the profiled bar.

Preferably, the special-shaped plate is arranged on the sliding table of the second linear module in a sliding manner, the special-shaped plate is provided with a clamping groove, and one end of the clamping block is movably connected in the clamping groove.

Preferably, the top of the frame body is provided with two sixth cylinders which are symmetrically arranged by taking the mechanical arm as a symmetry axis, the sixth cylinders are arranged at the inner included angle of the short-side feeding mechanism and the long-side feeding mechanism, the sixth cylinders are obliquely arranged, the output ends of the sixth cylinders are connected with seventh cylinders, and the output ends of the seventh cylinders are connected with pressing plates.

By adopting the technical scheme, the beneficial effects obtained by the utility model are as follows:

According to the utility model, through the cooperation of the two short-side feeding mechanisms, the long-side feeding mechanism and the first welding gun, the two welding belts can be welded into the L-shaped converging belt, and then the mechanical arm and the sucking mechanism are matched to work, so that the L-shaped converging belt corresponds to the converging belt welding points of a plurality of groups of battery strings, finally, the welding units are moved to weld the converging belts of the L-shaped converging belt and the battery strings at different positions, and after the welding units are welded and combined, the lead wires of the battery assembly are formed, therefore, the rapid welding of a plurality of groups of battery string lead wires can be realized through the cooperation of the multiple structures, the welding waiting time can be reduced, and the welding efficiency and the production efficiency can be improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of a short side feeding mechanism and a long side feeding mechanism according to the present utility model;

FIG. 3 is a schematic view of a short side feeding mechanism of the present utility model;

FIG. 4 is a schematic diagram of a discharging device according to the present utility model;

FIG. 5 is a schematic view of a partial top view of the present utility model;

FIG. 6 is a schematic view of a clamping assembly according to the present utility model;

FIG. 7 is a schematic diagram of a mobile welding unit according to the present utility model;

FIG. 8 is an enlarged schematic view of the structure of the utility model at A;

FIG. 9 is a schematic view of a suction mechanism according to the present utility model;

Fig. 10 is a schematic view of a ninth cylinder and a tenth cylinder of the present utility model.

In the figure, 1, a frame body, 2, a mechanical arm;

3. A short-side feeding mechanism; 31, a first linear module, 32, a first cylinder, 33, a finger cylinder, 34, a clamping plate, 35, a first cutting assembly, 36, a first discharging device, 37, a first guiding and straightening assembly, 38, a ninth cylinder, 39 and a tenth cylinder;

4. 41, a second linear module;

42. Clamping components 421, fourth air cylinders 422, irregular plates 423, fifth air cylinders 424, moving plates 425, traction plates 426, clamping blocks 427 and clamping grooves;

43. The second cutting assembly, 44, the second discharging device, 45, the second guide straightening assembly;

5. A first welding gun;

6. Moving welding units, 61, linear module assemblies, 62, support plates, 63, second air cylinders, 64, sliding support plates, 65, third air cylinders, 66, second welding guns, 67, eighth air cylinders, 68 and stabilizing seats;

7. A conveying unit;

8. the device comprises a suction mechanism, a connecting piece, a U-shaped frame, a positioning support plate, a mini sucking disc and a positioning support plate, wherein the suction mechanism comprises a suction plate and a connecting piece;

9. a sixth air cylinder, a seventh air cylinder, a pressing plate and a pressing plate.

Detailed Description

In order that the above objects, features and advantages of the utility model will be more clearly understood, a further description of the utility model will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present utility model and features in the embodiments may be combined with each other.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model, but the present utility model may be practiced otherwise than as described herein, and therefore the present utility model is not limited to the specific embodiments of the disclosure that follow.

Examples

As shown in fig. 1-10, the utility model provides an on-line welding device for multiple groups of battery component L-shaped leads, which comprises a frame body 1 and a mechanical arm 2 arranged on the frame body 1, wherein the top of the frame body 1 is provided with two short-side feeding mechanisms 3 which are symmetrically arranged by taking the mechanical arm 2 as a symmetry axis and two long-side feeding mechanisms 4 which are symmetrically arranged by taking the mechanical arm 2 as a symmetry axis, the long-side feeding mechanisms 4 are arranged on one side of the short-side feeding mechanisms 3, the top of the frame body 1 is provided with two first welding guns 5 which are symmetrically arranged by taking the mechanical arm 2 as a symmetry axis, the first welding guns 5 are arranged on the opposite corners of the short-side feeding mechanisms 3 and the long-side feeding mechanisms 4, and are used for welding two ends of welding belts respectively conveyed by the short-side feeding mechanisms 3 and the long-side feeding mechanisms 4 to form an L-shaped body converging belt, one side of the long-side feeding mechanisms 4 which is far away from the short-side feeding mechanisms 3 is provided with two movable welding units 6, the two movable welding units 6 are symmetrically arranged by taking the mechanical arm 2 as a symmetry axis, one side of the movable welding units 6 which is far away from the long-side feeding mechanisms 4, one side of the movable welding units 7 is arranged on the long-side feeding mechanisms 4 is far from the short-side feeding mechanisms 4, and the two movable welding units 7 are arranged on the long-side feeding units 7 are arranged on the side face side of the short-side feeding mechanism 4 by the short-side feeding mechanism 4, and the long-side feeding mechanism 4 is provided with two welding units 7, and the welding tool strings are respectively arranged on the long-side welding tool side face lifting body 8, and the long-side welding unit 8, and the welding unit is arranged on the long-side welding tool side and the long body 2.

In this embodiment, the short-side feeding mechanism 3 includes a first linear module 31 mounted on the frame body 1, a first cylinder 32 connected to a sliding 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 disposed on one side of the first linear module 31 and connected to the frame body 1, where the first cutting assembly 35 is used for cutting the solder strip conveyed on the short-side feeding mechanism 3.

Specifically, the first cylinder 32 is configured to drive the finger cylinder 33 to advance or retract, so that it can be satisfied that the finger cylinder 33 drives the clamping plate 34 to clamp or reset away from the welding strip, and the situation that the welding strip is touched and bumped when the welding strip is reset is not kept away from, so as to ensure the stability of the welding strip during welding, and the first cutting assembly 35 is of a conventional structure, and mainly drives the cutter to perform the lower cutting work by means of a pneumatic assembly, so as to complete the cutting work of the short-edge welding strip.

Further specifically, the short-side feeding mechanism 3 further includes a first discharging device 36 installed on the frame body 1 and a first guiding and straightening assembly 37 disposed on one side of the first cutting assembly 35, when the front side door and the rear side door on the frame body 1 are both opened and the rear side door is opened, a worker can conveniently place the welding strip coil on the first discharging device 36, so that the welding strip enters the first cutting assembly 35 through the first guiding and straightening assembly 37 after passing through the first discharging device 36, the first discharging device 36 and the first guiding and straightening assembly 37 are of structures conventionally seen in the art and are applied to various devices, and the structures are well known and applied by those skilled in the art and are not explained in detail herein.

Still more specifically, a ninth air cylinder 38 is disposed between the first cutting assembly 35 and the first guiding and aligning assembly 37, and between the second cutting assembly 43 and the second guiding and aligning assembly 45, the output end of the ninth air cylinder 38 is connected with a fixed stop plate, and tenth air cylinders 39 for driving the first cutting assembly 35 and the second cutting assembly 43 to move are correspondingly disposed on the short-side feeding mechanism 3 and the long-side feeding mechanism 4, the ninth air cylinder 38 drives the fixed stop plate to descend, so that the fixed stop plate can compress the welding strip and then perform cutting work, the problem of recovery after the welding strip is prevented, and when the welding strip is cut, the first cutting assembly 35 and the second cutting assembly 43 are all disposed on the front side, and after the welding strip is cut, the tenth air cylinder 39 can drive the first cutting assembly 35 or the second cutting assembly 43 to move backwards, so that the welding strip part is exposed, and the finger air cylinder 33 or the clamping assembly 42 can be convenient for stretching the welding strip again.

In this embodiment, the long-side feeding mechanism 4 includes a second linear module 41 mounted on the frame body 1, a clamping assembly 42 connected to a sliding table of the second linear module 41, and a second cutting assembly 43 disposed on one side of the second linear module 41 and connected to the frame body 1, where the clamping assembly 42 is used for conveying a solder strip on the long-side feeding mechanism 4, and the second cutting assembly 43 is used for cutting the solder strip conveyed on the long-side feeding mechanism 4, the clamping assembly 42 includes a fourth cylinder 421 mounted on the sliding table of the second linear module 41, a profiled plate 422 connected to an output end of the fourth cylinder 421, a fifth cylinder 423 mounted on the profiled plate 422, a moving plate 424 connected to an output end of the fifth cylinder, 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, the other end of the clamping block 426 is movably connected to the profiled plate 422, the profiled plate 422 is slidably disposed on the sliding table of the second linear module 41, and one end of the profiled plate 422 is provided with a clamping groove 427, and the one end of the clamping block 427 is movably connected to the clamping groove 426.

Specifically, the second cutting assembly 43 is of a conventional structure, and mainly drives the cutter to perform the lower cutting operation by means of a pneumatic assembly, so that the cutting operation of the long-side welding strip is completed, and when the long side is pulled, one end of the welding strip can be arranged in the clamping groove 427, and when the fifth cylinder 423 is contracted, the traction plate 425 in rotary connection can be driven to push the clamping block 426, so that one end of the clamping block 426 can be pressed against one end of the welding strip, and the work of the second linear module 41 can be matched to perform the pulling operation of the welding strip.

Further specifically, the long-side feeding mechanism 4 further includes a second discharging device 44 installed on the frame body 1 and a second guiding and straightening component 45 disposed on one side of the second cutting component 43, when the rear side door on the frame body 1 is opened, a worker can conveniently place the welding strip coil on the second discharging device 44, so that the welding strip enters the second cutting component 43 through the second guiding and straightening component 45 after passing through the second discharging device 44, the second discharging device 44 and the second guiding and straightening component 45 are of structures conventionally seen in the art and are applied to various devices, and the structures are well known and applied by those skilled in the art and are not described in detail herein.

In this embodiment, the mobile welding unit 6 includes a linear die assembly 61 moving along X, Y axis, a support plate 62 connected to the linear die assembly 61, a second cylinder 63 mounted on the support plate 62, a slide plate 64 connected to an output end of the second cylinder 63, a third cylinder 65 mounted on the slide plate 64, and a second welding gun 66 connected to an output end of the third cylinder 65, the second welding gun 66 being used for integrally welding an L-shaped busbar and a battery string on a tooling plate, an output end of the third cylinder 65 being connected with an eighth cylinder 67, an output end of the eighth cylinder 67 being connected with a stabilizing base 68, the second welding gun 66 being fixedly mounted on the stabilizing base 68.

Specifically, the linear module assembly 61 moving along the X, Y axis is mainly composed of two linear module bodies, the structure of which is a basic state well known to those skilled in the art, and is not designed in detail, and meanwhile, the slide seat plate 64 is also provided with a bonding plate capable of lifting and lowering through a pneumatic assembly, which is used for positioning the L-shaped bus belt before welding and preventing the L-shaped bus belt from displacement change during welding.

In this embodiment, the suction mechanism 8 includes a connecting member 81 connected to the mechanical arm 2, a U-shaped frame 82 mounted on the connecting member 81, a plurality of positioning support plates 83 mounted on the surface of the U-shaped frame 82, and mini suction cups 84 mounted on the positioning support plates 83 respectively.

Specifically, the mini sucking discs 84 are uniformly arranged along the outer side of the U-shaped frame 82 and are in a U-shaped state, so that the L-shaped converging belts at the two feeding mechanisms can be sucked, the length of waiting time for welding can be reduced by feeding the double stations, and the welding efficiency and the production efficiency are improved.

In this embodiment, two sixth cylinders 9 symmetrically arranged with the mechanical arm 2 as a symmetry axis are arranged at the top of the frame body 1, the sixth cylinders 9 are arranged at the inner included angle of the short-side feeding mechanism 3 and the long-side feeding mechanism 4, the sixth cylinders 9 are obliquely arranged, a seventh cylinder 10 is connected to the output end of the sixth cylinder 9, and a pressing plate 11 is connected to the output end of the seventh cylinder 10.

Specifically, the sixth air cylinder 9 is used for pushing the seventh air cylinder 10 to approach the first welding gun 5, and the seventh air cylinder 10 pushes the pressing plate 11 to work, so that the pressing plate 11 can be pressed at the top of the first welding gun 5, further, one ends of welding strips of the short-side feeding mechanism 3 and the long-side feeding mechanism 4 can be pressed, one ends of the two welding strips are driven to perform welding work, and an L-shaped converging strip is formed.

Before use, a plurality of groups of battery strings can be placed on a tooling plate through the previous working procedure, and a layer of isolating strips are placed on the surfaces of the battery strings so as to avoid the problem of short circuit after the L-shaped bus-bar is welded with the battery strings, and the whole process is the existing basic operation working procedure and is not elaborated; when the welding machine is used, the tooling plate for placing the battery strings is conveyed to one side of the mechanical arm 2 through the conveying unit 7, meanwhile, a welding strip enters the notch of the first cutting assembly 35 through the first guiding straightening assembly 37 on the first discharging device 36, the welding strip can be clamped through the work of the finger air cylinder 33 driving the clamping plate 34, the welding strip can be pulled to a certain length along with the work of the first linear module 31, the welding strip can be pressed and fixed through the work of the ninth air cylinder 38 after being pulled to a certain length, the welding strip can be cut through the first cutting assembly 35, the welding strip can be conveyed to the first welding gun 5 through the work of the first linear module 31 after being cut, the welding strip at the long side feeding mechanism 4 can be clamped through the moving plate 424, the traction plate 425 and the clamping block 426 through the fifth air cylinder 423, the welding strip can be conveyed to the first welding gun 5 through the second linear module 41 after being pulled to a certain length, the welding strip can be cut through the second cutting assembly 43, the welding strip can be conveyed to the first welding strip 5 through the second linear module 41, the welding strip can be pushed to the short side of the welding strip to the welding strip through the first linear module 11, the welding strip can be absorbed by the welding strip through the first linear module 11, the welding strip can be absorbed by the welding strip can be conveyed to the first welding gun 11, the welding strip can be absorbed by the welding strip 2 through the first welding strip 2, the welding strip can be placed on the welding machine 11, the welding machine can be absorbed by the welding strip 2 through the welding machine 11, and the welding machine can be placed on the welding machine 11, and the welding strip can be placed on one end side 2 through the welding machine is placed on the side arm 2, and make L type confluence area correspond the confluence area welding point of multiunit battery cluster, can realize through removing welding unit 6 that second welding gun 66 carries out X, Y, Z axial direction's removal at last, and make second welding gun 66 weld the confluence area welding point of different positions department through the work of eighth cylinder 67, make its L type confluence area merge with the confluence area welding of battery cluster after, form battery pack's lead wire, can realize the quick welding of multiunit battery cluster lead wire through the cooperation of above-mentioned multistructure with the effect at duplex position material loading and welding cooperation robotic arm 2, make reducible welding wait long period, and then improve welding efficiency and production efficiency.

In the present utility model, the term "plurality" means two or more, unless explicitly defined otherwise. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items. The terms "mounted," "connected," "secured," and the like are to be construed broadly, as they are used in a fixed or removable connection, or as they are integral with one another, as they are directly or indirectly connected through intervening media. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

It will be understood that when an element is referred to as being "mounted," "secured" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

In the description of the present specification, the terms "one embodiment," "some embodiments," "particular embodiments," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.

Claims (10)

1. The utility model provides a multiunit battery pack L type lead wire on-line welding set, its characterized in that, including frame body (1) and install robotic arm (2) on frame body (1), the top of frame body (1) is equipped with two and uses robotic arm (2) to set up short side feed mechanism (3) and two and use robotic arm (2) to set up long limit feed mechanism (4) as symmetry axis symmetry, one side of short side feed mechanism (3) is located in long limit feed mechanism (4), just two first welding guns (5) that use robotic arm (2) to set up for symmetry axis symmetry are installed at the top of frame body (1), first welding guns (5) are located the diagonal angle department of short side feed mechanism (3) and long limit feed mechanism (4) to be used for carrying out both ends welding to make it form L type body confluence area to short side feed mechanism (3) and long limit feed mechanism (4) respectively, just long limit feed mechanism (4) are kept away from two and are provided with welding unit (6) and are arranged in order to move welding unit (6) and are located on one side of carrying unit (6) and are kept away from welding unit (6) in the welding unit (6), and fixedly mounted on robotic arm (2) is used for absorbing L type body welding strip inhale material mechanism (8), remove welding unit (6) and follow X, Y, Z axial respectively in frock board top and remove, just remove welding unit (6) and be used for carrying out integrative welding to the L type body conflux area that battery cluster and inhale material mechanism (8) on the frock board placed.

2. The on-line welding device for the L-shaped leads of the battery packs, according to claim 1, characterized in that the short-side feeding mechanism (3) comprises a first linear module (31) installed on the frame body (1), a first air cylinder (32) connected to a sliding table of the first linear module (31), a finger air cylinder (33) connected to an output end of the first air cylinder (32), a clamping plate (34) connected to the finger air cylinder (33) and a first cutting assembly (35) arranged on one side of the first linear module (31) and connected with the frame body (1), wherein the first cutting assembly (35) is used for cutting welding strips conveyed on the short-side feeding mechanism (3).

3. The on-line welding device for the L-shaped leads of the battery packs, according to claim 1, characterized in that the long-side feeding mechanism (4) comprises a second linear module (41) installed on the frame body (1), a clamping component (42) connected to a sliding table of the second linear module (41), and a second cutting component (43) arranged on one side of the second linear module (41) and connected with the frame body (1), the clamping component (42) is used for conveying welding strips on the long-side feeding mechanism (4), and the second cutting component (43) is used for cutting welding strips conveyed on the long-side feeding mechanism (4).

4. The on-line welding device for L-shaped leads of a plurality of groups of battery packs according to claim 1, wherein the movable welding unit (6) comprises a linear module (61) which moves along X, Y axes, a support plate (62) connected to the linear module (61), a second cylinder (63) mounted on the support plate (62), a slide plate (64) connected to an output end of the second cylinder (63), a third cylinder (65) mounted on the slide plate (64), and a second welding gun (66) connected to an output end of the third cylinder (65), and the second welding gun (66) is used for integrally welding an L-shaped busbar and a battery string on the tooling plate.

5. The on-line welding device for the plurality of groups of battery assembly L-shaped leads according to claim 1, wherein the suction mechanism (8) comprises a connecting piece (81) connected to the mechanical 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) installed on the positioning support plates (83) respectively.

6. The on-line welding device for the L-shaped leads of the battery packs according to claim 2, wherein the short-side feeding mechanism (3) further comprises a first discharging device (36) arranged on the frame body (1) and a first guiding and straightening assembly (37) arranged on one side of the first cutting assembly (35).

7. A multi-group battery assembly L-shaped lead wire on-line welding apparatus according to claim 3, wherein the long side feeding mechanism (4) further comprises a second discharging device (44) mounted on the frame body (1) and a second guiding and straightening assembly (45) arranged at one side of the second cutting assembly (43).

8. The device for welding the L-shaped leads of the multi-group battery packs on line according to claim 3, wherein the clamping assembly (42) comprises a fourth cylinder (421) installed on the sliding table of the second linear module (41), a special-shaped plate (422) connected with the output end of the fourth cylinder (421), a fifth cylinder (423) installed on the special-shaped plate (422), a movable plate (424) connected with the output end of the fifth cylinder (423), a traction plate (425) movably connected with one end of the movable plate (424) and a clamping block (426) movably connected with the other end of the traction plate (425), and the other end of the clamping block (426) is movably connected with the special-shaped plate (422).

9. The on-line welding device for L-shaped leads of multiple groups of battery assemblies according to claim 8, wherein the special-shaped plate (422) is slidably arranged on a sliding table of the second linear module (41), a clamping groove (427) is formed in 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 welding the L-shaped leads of the battery packs on line according to claim 1, wherein two sixth cylinders (9) symmetrically arranged by taking the mechanical arm (2) as a symmetry axis are arranged at the top of the frame body (1), the sixth cylinders (9) are arranged at the inner included angle of the short-side feeding mechanism (3) and the long-side feeding mechanism (4), the sixth cylinders (9) are obliquely arranged, a seventh cylinder (10) is connected to the output end of the sixth cylinders (9), and a pressing plate (11) is connected to the output end of the seventh cylinder (10).