Battery piece welding device

Abstract

The utility model provides a battery piece welding device. The battery piece welding device comprises a feeding mechanism, a moving platform, a cutting-off mechanism, a carrying mechanism and a welding mechanism. A feeding station, a cutting-off station, a feeding station and a welding station are sequentially arranged on a translation path of the movable platform, and the feeding mechanism supplies metal wires to the position above the feeding station. When the moving platform moves horizontally to the feeding station, the metal wires are picked up from the feeding mechanism and sequentially move horizontally to pass through the cutting-off station, the feeding station and the welding station, and the metal wires are laid on the moving platform. The carrying mechanism places the battery piece on the moving platform located on the feeding station. The welding mechanism welds the metal wires on the welding station to the lower surface of the battery piece. The moving platform and the feeding mechanism are further configured to press the metal wires from the front and back of the cutting station, and the cutting mechanism cuts off the metal wires at the cutting station. In the traction process of the metal wire, the metal wire is synchronously laid on the moving platform, meanwhile, laying and welding of the battery piece can be synchronously carried out, and therefore the laying and welding efficiency of the battery piece and the metal wire is improved.

Description

Technical Field

[0001] This application relates to the field of photovoltaic equipment, specifically a cell welding device. Background Technology

[0002] A solar cell welding device is used to weld solar cells to welding strips. Currently, common solar cell welding devices include a belt conveyor, a welding strip laying mechanism, a solar cell laying mechanism, and a welding mechanism. The welding strip laying mechanism includes a feeding mechanism, a pressing mechanism, a cutting mechanism, and a traction mechanism arranged in sequence. The traction mechanism pulls the welding strip from the feeding mechanism to a certain length, the pressing mechanism presses down the welding strip, the cutting mechanism cuts the welding strip to obtain a predetermined length, the traction mechanism then lays the predetermined length of welding strip onto the belt conveyor, the solar cell laying mechanism lays the solar cells onto the welding strip on the belt conveyor, and finally the welding mechanism heats and welds the laid solar cells to the welding strip.

[0003] In traditional solar cell welding equipment, the traction mechanism needs to wait for the welding strip to be cut before it can lay the welding strip. When the welding strip to be laid is long, the traction mechanism has to wait a long time, which will reduce the laying efficiency of solar cells and welding strip. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application provides a battery cell welding apparatus, which adopts the following technical solution:

[0005] A battery cell welding apparatus includes a feeding mechanism, a moving platform, a cutting mechanism, a conveying mechanism, and a welding mechanism, wherein:

[0006] The mobile platform can carry at least two battery cells along the first direction. The mobile platform is configured to be able to translate along the first direction. The translation path of the mobile platform is provided with a feeding station, a cutting station, a loading station and a welding station in sequence.

[0007] The feeding mechanism is configured to supply several metal wires extending in a first direction to the area above the feeding station, with the free ends of the metal wires close to the cutting station.

[0008] The mobile platform is configured to move to the feeding station and pick up the free end of the metal wire from the feeding mechanism. The mobile platform is also configured to move sequentially through the cutting station, the feeding station and the welding station. During the movement, the mobile platform pulls the metal wire out from the feeding mechanism so that the metal wire is laid on the mobile platform.

[0009] The conveying mechanism is set at the loading station and is configured to place the battery cells onto a moving platform located at the loading station, where the battery cells press the metal wires onto the moving platform.

[0010] The welding mechanism is set up at the welding station and is configured to weld the metal wire located at the welding station to the lower surface of the battery cell.

[0011] The mobile platform and feeding mechanism are also configured to press the metal wire from the front and rear positions of the cutting station when the mobile platform is completely away from the cutting station, and the cutting mechanism is configured to cut the metal wire at the cutting station.

[0012] The battery cell welding apparatus provided in this application allows for the laying of metal wires from the feeding mechanism onto the moving platform during its movement. During the wire laying process, a transport mechanism presses battery cells one by one onto the wires, and then a welding mechanism sequentially welds the wires onto each battery cell. After the wire laying is complete, a cutting mechanism cuts the wires, ultimately obtaining at least two battery cells welded together with the metal wires.

[0013] As can be seen, by using the battery cell welding device provided in this application, the metal wire is laid onto the moving platform simultaneously during the traction process, and the battery cells can be laid and welded simultaneously during the laying process, thereby improving the laying and welding efficiency of the battery cells and metal wire.

[0014] In some embodiments, the cutting mechanism is fixedly installed at the cutting station, or the cutting mechanism is installed at the end of the mobile platform.

[0015] Two cutting mechanism settings are provided, both of which can cut the metal wire at the cutting station.

[0016] In some embodiments, a first clamping member is provided at the first end of the mobile platform for clamping or releasing a metal wire, and a second clamping member is provided at the second end of the mobile platform for clamping or releasing a metal wire; the first clamping member is configured to clamp the free end of the metal wire located on the feeding mechanism when the first end of the mobile platform moves below the feeding mechanism; and the second clamping member is configured to clamp the metal wire when the mobile platform leaves the cutting station.

[0017] By setting a first clamping element at the first end of the moving platform, the moving platform can pick up the free end of the metal wire from the feeding mechanism and pull the metal wire, so that the metal wire is laid on the moving platform during the pulling process. By setting a second clamping element at the second end of the moving platform, the moving platform can cooperate with the feeding mechanism to clamp the metal wire from the front and rear positions of the cutting station.

[0018] In some embodiments, the first clamping member and the second clamping member have the same structure, including a support plate and a pressure plate disposed above the support plate. The support plate is fixedly installed at the end of the moving platform. The bearing surface of the support plate is not higher than the bearing surface of the moving platform. The pressure plate can be raised and lowered relative to the support plate to press the metal wire against the bearing surface of the support plate or release the metal wire.

[0019] By configuring the first and second clamping components to include a support plate and a pressure plate, the pressure plate and the support plate can cooperate to clamp and release the metal wire. Furthermore, since the support surface of the support plate is not higher than the support surface of the moving platform, the pulled-out metal wire can be better laid on the moving platform.

[0020] In some embodiments, the cell welding apparatus further includes a guide rail and a drive mechanism, wherein: the guide rail is arranged along a first direction, the moving platform is slidably connected to the guide rail and connected to the drive end of the drive mechanism, and the drive mechanism is used to drive the moving platform to slide and translate along the guide rail.

[0021] By setting up guide rails and drive mechanisms, the translational drive and guidance of the mobile platform are realized, ensuring the positional accuracy of the mobile platform.

[0022] In some embodiments, the carrier surface of the mobile platform is provided with adsorption holes for adsorbing each battery cell.

[0023] After the solar cell is placed on the moving platform with the metal wire laid on it, the moving platform sucks the solar cell down through the suction holes, thereby ensuring that the solar cell is pressed tightly against the metal wire, ultimately improving the welding effect between the metal wire and the solar cell and preventing poor welding.

[0024] In some embodiments, the mobile platform includes at least two support blocks arranged side by side along a first direction, each support block being used to support and adsorb a battery cell; guide combs are provided between adjacent two support blocks and on the outer sides of the support blocks at both ends, the guide combs having a plurality of guide grooves spaced apart along a second direction, each guide groove being used to guide a metal wire, the second direction being perpendicular to the first direction.

[0025] By configuring the mobile platform to consist of at least two bearing blocks arranged side by side along a first direction, and by providing guide combs on the outer sides of the bearing blocks at both ends, the metal wire is guided, preventing the metal wire from shifting position during traction.

[0026] In some embodiments, each guide comb is configured to switch between a low avoidance position and a high guide position; when the guide comb is in the high guide position, the upper end of the guide groove is higher than the bearing surface of the moving platform, and the metal wire can be laid on the moving platform after entering the guide groove; when the guide comb is in the low avoidance position, the upper end of the guide groove is lower than the feeding mechanism.

[0027] By setting the guide comb to be able to switch between a low avoidance position and a high guidance position, the guide comb can guide the metal wire and avoid the feeding mechanism, ensuring that the mobile platform can smoothly pick up the free end of the metal wire from the feeding mechanism.

[0028] In some embodiments, the feeding mechanism includes a feeding roller group, a guide roller group, and a pressure head, wherein: the feeding roller group is disposed in front of the moving platform, the guide roller group is disposed between the feeding roller group and the moving platform, and the pressure head is close to the cutting station; the feeding roller group is used to feed out a plurality of metal wires; the guide roller group is used to guide the metal wires to the pressure head, and the pressure head is used to press or release the metal wires, with the free end of the metal wires extending out of the pressure head.

[0029] The feeding mechanism is able to automatically feed the metal wire through the cooperation of the feeding roller group, the guide roller group and the pressure head, and position the free end of the metal wire at the cutting station, so that the moving platform can pick up the free end of the metal wire from the cutting station each time.

[0030] In some embodiments, the feeding mechanism further includes a flux coating component disposed between the feeding roller assembly and the moving platform, the flux coating component being used to coat flux onto each metal wire.

[0031] By incorporating a flux coating component, flux is automatically applied to the metal wire before it is laid on the moving platform, thereby enhancing the welding strength between the metal wire and the battery cell. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the battery cell welding device in one working state according to an embodiment of this application;

[0033] Figure 2 This is a schematic diagram of the battery cell welding device in another working state according to an embodiment of this application.

[0034] Figure 3 for Figure 1 A magnified view of region A in the image;

[0035] Figure 4 for Figure 1 A magnified view of region B in the image;

[0036] Figure 5 for Figure 2 A magnified view of region C in the image;

[0037] Figure 6 for Figure 5 A magnified view of region E in the image;

[0038] Figure 7This is a three-dimensional structural diagram of the first clamping member and the guide comb located at the first end of the mobile platform in the embodiments of this application;

[0039] Figure 8 This is a side view of the first clamping member and the guide comb located at the first end of the mobile platform in an embodiment of this application.

[0040] Figure 9 for Figure 8 DD sectional view.

[0041] Figures 1 to 9 Includes:

[0042] Feeding mechanism 1: Press head 11;

[0043] Mobile platform 2: support block 21, suction hole 211;

[0044] Handling mechanism 3;

[0045] Welding mechanism 4;

[0046] First clamping component 5: bearing plate 51, pressure plate 52;

[0047] Second clamping component 6;

[0048] Guide rail 7;

[0049] Guide comb 8: Guide groove 81;

[0050] 100 metal wires, 200 battery cells. Detailed Implementation

[0051] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, this application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0052] The metal wire mentioned in this application has solder on its surface. When the metal wire is heated, the solder on its surface melts, thereby creating a conductive connection between the metal wire and the battery cell. The cross-section of the metal wire can be circular, triangular, rectangular, etc.

[0053] As described in the background section, in traditional solar cell welding devices, the traction mechanism needs to wait for the welding strip to be cut before it can lay the welding strip. When the welding strip to be laid is long, the traction mechanism has to wait a long time, which will reduce the laying efficiency of solar cells and welding strip.

[0054] To address this problem, this application provides a battery cell welding apparatus for welding metal wires onto battery cells.

[0055] like Figures 1 to 2As shown, the battery cell welding apparatus in this embodiment includes a feeding mechanism 1, a moving platform 2, a cutting mechanism (not shown in the figure), a conveying mechanism 3, and a welding mechanism 4, wherein:

[0056] The mobile platform 2 is capable of carrying at least two battery cells along a first direction (such as the X direction). The mobile platform 2 is configured to be able to translate along the first direction. The translation path of the mobile platform 2 is provided with a feeding station E, a cutting station F, a loading station G, and a welding station H in sequence.

[0057] The feeding mechanism 1 is configured to supply a plurality of (generally 10 to 200) metal wires 100 extending in a first direction to the area above the feeding station E, such that the free ends of the metal wires 100 are close to the cutting station F.

[0058] The mobile platform 2 is configured to move horizontally to the feeding station E and pick up the free end of the metal wire 100 from the feeding mechanism 1. The mobile platform 2 is also configured to move horizontally through the cutting station F, the feeding station G and the welding station H in sequence. During the movement, the mobile platform 2 pulls the metal wire 100 out of the feeding mechanism 1 so that the metal wire 100 is laid on the mobile platform 2.

[0059] The conveying mechanism 3 is set at the loading station G. The conveying mechanism 3 is configured to place the battery cell 200 onto the mobile platform 2 located at the loading station G, and the battery cell 200 presses the metal wire 100 onto the mobile platform 2.

[0060] The welding mechanism 4 is located at the welding station H and is configured to weld the metal wire 100 located at the welding station H to the lower surface of the battery cell 200.

[0061] The mobile platform 2 and the feeding mechanism 1 are also configured to press the metal wire 100 from the front and rear positions of the cutting station F when the mobile platform 2 is completely away from the cutting station F, and the cutting mechanism is configured to cut the metal wire 100 at the cutting station F.

[0062] In the battery cell welding apparatus of this embodiment, the metal wire 100 can be pulled out from the feeding mechanism 1 during the movement of the moving platform 2, so that the metal wire 100 is laid on the moving platform 2. During the laying of the metal wire 100, the conveying mechanism 3 presses the battery cells 200 one by one onto the metal wire, and then the welding mechanism 4 welds the metal wire to the lower surface of each battery cell 200 in sequence. After the metal wire 100 is laid, the cutting mechanism cuts the metal wire 199. After all the battery cells on the moving platform 2 have been welded by the welding mechanism 4, at least two battery cells welded by the metal wire 100 are finally obtained.

[0063] As can be seen, by using the battery cell welding device provided in this application embodiment, the metal wire 100 is laid onto the mobile platform 2 simultaneously during the traction process of the metal wire 100, and the battery cell 200 can be laid and welded simultaneously during the laying process of the metal wire, thereby improving the laying and welding efficiency of the battery cell 200 and the metal wire 100.

[0064] After removing at least two wire-welded battery cells from the moving platform 2, the wires between two adjacent battery cells can be cut as needed to obtain battery cell welding strip units, preparing for subsequent series connection between battery cells.

[0065] The conveying mechanism 3 in this embodiment can be any existing conveying mechanism capable of conveying and loading battery cells. For example, the conveying mechanism 3 includes a moving part and a suction cup connected to the driving end of the moving part. The moving part drives the suction cup to move horizontally and vertically, thereby driving the suction cup to pick up the battery cells and place the battery cells on the moving platform 2 located at the loading station G.

[0066] The welding mechanism 4 in this embodiment can be a heating component that can heat the metal wire, such as an infrared lamp box, a hot air assembly, an electromagnetic heating assembly, or a laser heating assembly, so that the solder on the surface of the metal wire melts.

[0067] Optionally, the cutting mechanism is fixedly installed at the cutting station F. When the moving platform 2 completely leaves the cutting station F, the cutting mechanism can cut the metal wire 100.

[0068] The cutting mechanism can employ any existing device capable of cutting multiple metal wires 100. For example, the cutting mechanism includes a liftable mounting base and several cutting shears arranged side-by-side on the mounting base along a second direction (such as the Y direction), wherein the second direction is perpendicular to the first direction. During the traction and laying of the metal wires 100, the moving platform 2 is positioned at a low clearance position, and all cutting shears are in an open state, allowing the moving platform 2 to pass smoothly over the cutting shears. When the moving platform 2 completely leaves the cutting station F, the mounting base rises to the high cutting position, causing each metal wire 100 to fall into a corresponding cutting shear, and the cutting shears simultaneously cut the metal wires 100.

[0069] Alternatively, the cutting mechanism can be located at the end of the moving platform 2, so that the cutting mechanism reaches the cutting station F when the moving platform 2 completely leaves the cutting station F. In this way, the cutting mechanism can immediately cut the metal wire 100. Optionally, the cutting mechanism includes several cutting shears arranged side-by-side at the end of the moving platform 2 along a second direction (e.g., the Y direction). During the process of the moving platform 2 pulling and laying the metal wire 100, each metal wire 100 falls into a corresponding cutting shear in an open state. When the moving platform 2 completely leaves the cutting station F, the several cutting shears simultaneously cut the metal wire 100.

[0070] like Figures 3 to 6 As shown, optionally, the first end of the moving platform 2 is provided with a first clamping member 5 for clamping or releasing the metal wire, and the second end of the moving platform 2 is provided with a second clamping member 6 for clamping or releasing the metal wire. The first clamping member 5 is configured to clamp the free end of the metal wire 100 located on the feeding mechanism when the first end of the moving platform 2 moves below the feeding mechanism 1. When the moving platform 2 leaves the cutting station F, the second clamping member 6 is configured to clamp the metal wire 100.

[0071] It can be seen that by setting the first clamping member 5 at the first end of the mobile platform 2, the mobile platform 2 can pick up the free end of the metal wire 100 from the feeding mechanism 1 and implement the traction of the metal wire 100.

[0072] By setting a second clamping member 6 at the second end of the mobile platform 2, the second end of the mobile platform 2 can cooperate with the feeding mechanism 1 to clamp the metal wire 100 from the front and rear positions of the cutting station F, thereby facilitating the cutting mechanism to cut the metal wire 100.

[0073] Optionally, the first clamping member 5 and the second clamping member 6 have the same structure. Taking the first clamping member 5 as an example, as follows... Figures 7 to 9 As shown, it includes a support plate 51 and a pressure plate 52 disposed above the support plate 51. The support plate 51 is fixedly installed at the end of the mobile platform 2. The bearing surface of the support plate 51 is not higher than the bearing surface of the mobile platform 2. The pressure plate 52 can be raised and lowered relative to the support plate 51 to press the metal wire 100 onto the bearing surface of the support plate 51 or to release the metal wire 100.

[0074] By configuring the first clamping member 5 and the second clamping member 6 to include a bearing plate 51 and a pressure plate 52, the pressure plate 52 and the bearing plate 51 can cooperate to clamp and release the metal wire 100. In addition, since the bearing surface of the bearing plate 51 is not higher than the bearing surface of the moving platform 2, the pulled-out metal wire can be better laid on the moving platform 2.

[0075] like Figure 2As shown, optionally, the battery cell welding device in this embodiment of the application further includes a guide rail 7 and a drive mechanism (not shown in the figure), wherein: the guide rail 7 is arranged along the first direction, the moving platform 2 is slidably connected to the guide rail 7 via a slider and connected to the drive end of the drive mechanism, and the drive mechanism is used to drive the moving platform 2 to slide and translate along the guide rail 7.

[0076] By setting up guide rail 7 and drive mechanism, translation drive of mobile platform 2 is realized, and translation guidance of mobile platform 2 is realized, thus ensuring the positional accuracy of mobile platform 2.

[0077] The drive mechanism can be any existing linear drive module that can drive the mobile platform 2 to slide and translate along the guide rail 7, such as a lead screw drive module or a synchronous belt drive module.

[0078] Optional, such as Figure 5 As shown, the supporting surface of the mobile platform 2 is provided with adsorption holes 211 for adsorbing each battery cell. Thus, when the battery cell is placed on the mobile platform 2 where the metal wire is laid, the mobile platform 2 adsorbs the battery cell downward through the adsorption holes 211, thereby ensuring that the battery cell is pressed tightly against the metal wire, and ultimately ensuring the welding effect between the metal wire and the battery cell, preventing poor welding.

[0079] Optionally, mobile platform 2 includes at least two (e.g.) Figure 1 and Figure 2 Eleven support blocks 21 are arranged side-by-side along the first direction, each support block 21 being used to support and adsorb one battery cell. Figures 3 to 6 As shown, guide combs 8 are provided between two adjacent support blocks 21 and on the outer side of the support blocks 21 at both ends. The guide combs 8 have several guide grooves 81 spaced apart along a second direction (such as the Y direction). Each guide groove 81 is used to guide a metal wire 100. The second direction is perpendicular to the first direction.

[0080] By configuring the mobile platform 2 to consist of at least two bearing blocks 21 arranged side by side along the first direction, and by providing guide combs 8 on the outer sides of the bearing blocks 21 at both ends and between adjacent bearing blocks 21, the metal wire 100 is guided, preventing the metal wire 100 from shifting position during traction.

[0081] Optionally, each guide comb 8 is configured to switch between a low clearance position and a high guide position. When the guide comb 8 is in the high guide position, the upper end of the guide groove 81 is higher than the bearing surface of the moving platform 2, and the metal wire 100 can be laid on the moving platform 2 after entering the guide groove 81. When the guide comb 8 is in the low clearance position, the upper end of the guide groove 81 is lower than the feeding mechanism 1.

[0082] By setting the guide comb 8 to be able to move up and down between the low avoidance position and the high guide position, the guide comb 8 can pull the metal wire and avoid the feeding mechanism 1, ensuring that the end of the moving platform 2 can smoothly pick up the free end of the metal wire 100 from the feeding mechanism 1.

[0083] Optional, such as Figure 3 and Figure 4 As shown, the first clamping member 5, located at the first end of the mobile platform 2, is outside the guide comb 8 at the first end. After the first clamping member 5 clamps the free end of the metal wire 100 located on the feeding mechanism 1, the metal wire then enters the guide comb 8 for guidance and positioning. Similarly, the second clamping member 6, located at the second end of the mobile platform 2, is outside the guide comb 8 at the second end to guide and clamp the tail end of the metal wire on the mobile platform 2.

[0084] like Figure 1 As shown, optionally, the feeding mechanism 1 includes a feeding roller group, a guide roller group, and a pressure head 11, wherein: the feeding roller group is located in front of the moving platform 2, the guide roller group is located between the feeding roller group and the moving platform 2, and the pressure head 11 is close to the cutting station F. The feeding roller group is used to feed out several metal wires 100, the guide roller group is used to guide the metal wires 100 to the pressure head 11, the pressure head 11 is used to press or release the metal wires 100, and the free end of the metal wires 100 extends out of the pressure head 11.

[0085] It can be seen that through the cooperation of the feeding roller group, the guide roller group and the pressure head 11, the feeding mechanism 1 can automatically feed the metal wire 100 and position the free end of the metal wire 100 at the cutting station F, so that the moving platform 2 can pick up the free end of the metal wire 100 from the cutting station F each time.

[0086] Before the cutting mechanism cuts the metal wire 100, the second end of the moving platform 2 (such as the second clamping member 6) and the pressure head 11 press the metal wire 100 from the front and rear positions of the cutting station F, thereby facilitating the cutting mechanism to cut the metal wire 100.

[0087] Optionally, the feeding mechanism 1 also includes a flux coating component disposed between the feeding roller group and the moving platform 2. The flux coating component is used to coat flux onto each metal wire, thereby improving the welding strength between the metal wire and the battery cell. The flux coating component can be any existing mechanism capable of applying flux to the metal wire, such as applying flux to the metal wire by immersion or spraying.

[0088] The foregoing has provided a sufficiently detailed and specific description of this application. Those skilled in the art should understand that the descriptions in the embodiments are merely exemplary, and all changes made without departing from the true spirit and scope of this application should fall within the protection scope of this application. The scope of protection claimed in this application is defined by the claims, and not by the above descriptions in the embodiments.

Claims

1. A battery cell welding apparatus, characterized in that, The battery cell welding device includes a feeding mechanism, a moving platform, a cutting mechanism, a conveying mechanism, and a welding mechanism, wherein: The mobile platform can carry at least two battery cells along the first direction. The mobile platform is configured to translate along the first direction. The translation path of the mobile platform is provided with a feeding station, a cutting station, a loading station and a welding station in sequence. The feeding mechanism is configured to supply a plurality of metal wires extending along the first direction to the area above the feeding station, such that the free ends of the metal wires are close to the cutting station. The mobile platform is configured to move to the feeding station and pick up the free end of the metal wire from the feeding mechanism. The mobile platform is also configured to move sequentially through the cutting station, the loading station and the welding station. During the movement, the mobile platform pulls the metal wire out from the feeding mechanism so that the metal wire is laid on the mobile platform. The conveying mechanism is located at the loading station and is configured to place the battery cell onto the moving platform located at the loading station, wherein the battery cell presses the metal wire onto the moving platform. The welding mechanism is disposed at the welding station and is configured to weld the metal wire located at the welding station to the lower surface of the battery cell. The mobile platform and the feeding mechanism are also configured to cooperate in pressing the metal wire from the front and rear positions of the cutting station when the mobile platform is completely away from the cutting station, and the cutting mechanism is configured to cut the metal wire at the cutting station.

2. The battery cell welding apparatus as described in claim 1, characterized in that, The cutting mechanism is fixedly installed at the cutting station, or the cutting mechanism is installed at the end of the mobile platform.

3. The battery cell welding apparatus as described in claim 1, characterized in that, The first end of the mobile platform is provided with a first clamping member for clamping or releasing the metal wire, and the second end of the mobile platform is provided with a second clamping member for clamping or releasing the metal wire; The first clamping member is configured to clamp the free end of the wire located on the feeding mechanism when the first end of the moving platform moves to below the feeding mechanism; When the mobile platform leaves the cutting station, the second clamping member is configured to clamp the metal wire.

4. The battery cell welding apparatus as described in claim 3, characterized in that, The first clamping member has the same structure as the second clamping member, including a bearing plate and a pressure plate disposed above the bearing plate. The bearing plate is fixedly installed at the end of the moving platform. The bearing surface of the bearing plate is not higher than the bearing surface of the moving platform. The pressure plate can be raised and lowered relative to the bearing plate to press the metal wire against the bearing surface of the bearing plate or release the metal wire.

5. The battery cell welding apparatus as described in claim 1, characterized in that, The battery cell welding device also includes a guide rail and a drive mechanism, wherein: The guide rail is arranged along the first direction, the mobile platform is slidably connected to the guide rail and connected to the drive end of the drive mechanism, and the drive mechanism is used to drive the mobile platform to slide and translate along the guide rail.

6. The battery cell welding apparatus as described in claim 1, characterized in that, The mobile platform has adsorption holes on its bearing surface for adsorbing each of the battery cells.

7. The battery cell welding apparatus as described in claim 1, characterized in that, The mobile platform includes at least two support blocks arranged side by side along the first direction, each of the support blocks being used to support and adsorb a battery cell; Guide combs are provided between two adjacent support blocks and on the outer sides of the support blocks at both ends. Each guide comb has a plurality of guide grooves spaced apart along a second direction. Each guide groove is used to guide one of the metal wires. The second direction is perpendicular to the first direction.

8. The battery cell welding apparatus as described in claim 7, characterized in that, Each of the guide combs is configured to switch between a low avoidance position and a high guide position; When the guide comb is located at the guide high position, the upper end of the guide groove is higher than the bearing surface of the mobile platform, and the metal wire can be laid on the mobile platform after entering the guide groove; When the guide comb is in the low avoidance position, the upper end of the guide groove is lower than the feeding mechanism.

9. The battery cell welding apparatus as described in claim 1, characterized in that, The feeding mechanism includes a feeding roller assembly, a guide roller assembly, and a pressure head, wherein: The feeding roller assembly is located in front of the moving platform, the guide roller assembly is located between the feeding roller assembly and the moving platform, and the pressure head is close to the cutting station; The feeding roller assembly is used to feed out several of the metal wires; The guide roller assembly is used to guide the metal wire to the pressure head, the pressure head is used to press or release the metal wire, and the free end of the metal wire extends out of the pressure head.

10. The battery cell welding apparatus as described in claim 9, characterized in that, The feeding mechanism also includes a flux coating component disposed between the feeding roller group and the moving platform, the flux coating component being used to coat flux onto each of the metal wires.

Images