Soft package battery tab welding and pressing device

Abstract

The utility model relates to the technical field of pole lug welding, and discloses a soft package battery pole lug welding and pressing device which comprises an equipment base, and a driving motor, a driving shaft, a rotating motor, a strip-shaped rotating disc, a clamping plate, a metal sheet, a fixing frame and a top plate motor are inserted in the equipment base. The technical effects and advantages of the utility model are as follows: the structure is reasonable, the strip-shaped rotating disc is rotated by the rotating motor, the driving shaft is rotated by the driving motor, a metal sheet is inserted into the strip-shaped rotating disc, the strip-shaped rotating disc is rotated to align to the bottom of the pressing plate, the aerostatic press enables the air pressure column to descend, and the pressing plate abuts against the metal sheet; a top plate motor rotates a top plate gear, the top plate gear drives a top plate tooth row to move forwards, the metal sheet is extruded inwards, an extrusion motor rotates a pressing plate, the metal sheet is extruded again, and pseudo soldering is reduced through the structures such as the welding assembly, the extrusion motor and the plate bending column; and the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pole tab welding, in particular to a pole tab welding and pressing device for a soft-pack battery. Background Art

[0002] Lithium batteries can be divided into three types according to the packaging form: cylindrical, square and soft-pack. Cylindrical and square batteries are packaged in steel and aluminum shells respectively, while the soft-pack battery tab welding and clamping device uses aluminum-plastic film. Once there is a problem inside, the soft-pack battery tab welding and clamping device will swell and swell from the weakest part of the battery surface, but will not explode like steel or aluminum shell batteries, so it is relatively safe. Therefore, the soft-pack battery tab welding and clamping device refers to a battery with a polymer shell on the outer layer of the liquid lithium-ion battery.

[0003] Soft-pack lithium batteries are just liquid lithium-ion batteries covered with a polymer shell. They are structurally packaged in aluminum-plastic film. In the event of a safety hazard, the soft-pack battery will only bulge and crack at best.

[0004] A battery cell tab welding and clamping device disclosed in the Chinese utility model patent application disclosure CN216398452U, although the pole piece can be bent and pressed on the busbar through the vertical and horizontal movement of the welding pressure head, and the laser welding head can pass through the cavity to laser weld and fix the part pressed by the welding pressure head, and gradually move the welding position by rolling the roller along the surface of the tab, so as to gradually weld and fix the tab to the busbar, ensure that the tab will not shrink, and control the gap between the tab and the busbar. Ensure that the tab flow area after the final welding is completed meets the design requirements, and at the same time improve the welding yield of the process. The pressing effect on the tab is improved by the cooperation of the push rod and the spring, so that both ends of the roller can press the tab to ensure that the gap meets the requirements, but the device is not suitable for soft-pack batteries. Since the volume of the soft-pack battery is relatively large compared to other parts that require tab welding, it is easy to cause a gap between the tab and the metal sheet due to the large volume during the welding process, which is easy to cause unstable welding. Therefore, a utility model is proposed to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a welding clamping device for a soft-pack battery tab, which solves the problems of cold solder joints in soft-pack battery welding and positioning errors in automated processing of soft-pack batteries.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a soft-pack battery ear welding and clamping device, comprising an equipment base, a driving motor is plugged into the interior of the equipment base, a driving shaft is plugged into the interior of the driving motor, a rotating motor is plugged into the upper surface of the equipment base, a bar-shaped rotating disk is plugged into the interior of the rotating motor, a clamping plate is fixedly connected to the upper surface of the bar-shaped rotating disk, a metal sheet is plugged into the interior of the bar-shaped rotating disk, a fixing frame is plugged into the upper surface of the equipment base, a top plate motor is plugged into the interior of the fixing frame, a top plate gear is plugged into the interior of the top plate motor, a top plate gear row is plugged into the interior of the fixing frame, an air press is plugged into the upper surface of the fixing frame, an air pressure column is plugged into the interior of the air pressure column, an extrusion motor is plugged into the interior of the extrusion motor, a pressing plate is plugged into the interior of the extrusion motor, and a welding assembly is fixedly connected to one side of the equipment base.

[0009] Optionally, a tooth row is provided on the upper surface of the top plate tooth row, and the tooth row and the top plate gear are meshed with each other.

[0010] Optionally, a motor compartment is provided on the lower surface of the air pressure column, and an extrusion motor is clamped inside the motor compartment.

[0011] Optionally, a bending plate motor is clamped inside the device base, and a bending plate gear is sleeved on the outer surface of the bending plate motor.

[0012] Optionally, a bent plate column is inserted into the bottom of the equipment base.

[0013] Optionally, a feed conveyor belt is fixedly connected to the other side of the equipment base, and a conveying motor is plugged into one side of the equipment base.

[0014] Optionally, a driving shaft is inserted into the interior of the conveying motor, and a moving conveyor belt is sleeved on the outer surface of the driving shaft.

[0015] Optionally, a passive shaft is inserted into the interior of the device base, and a film storage bin is clamped on the upper surface of the device base.

[0016] In summary, the technical effects and advantages of the utility model are:

[0017] 1. The utility model has a reasonable structure. The bar rotating disk is rotated by a rotating motor, and the driving motor rotates the driving shaft to insert the metal sheet into the bar rotating disk. The rotating bar rotating disk is aligned with the bottom of the pressing plate. The air press makes the air pressure column descend, and the pressing plate presses the metal sheet. The bending plate motor rotates the bending plate gear to control the bending plate column to rise and extrude the metal sheet. The top plate motor rotates the top plate gear, and the top plate gear drives the top plate gear row to move forward to extrude the metal sheet inward. The extrusion motor rotates the pressing plate to extrude the metal sheet again. The transmission motor rotates the active shaft to rotate the mobile conveyor belt, and the passive shaft assists in the movement. When the soft-pack battery reaches the upper surface of the mobile conveyor belt, the soft-pack battery is welded through the welding assembly.

[0018] 2. In the utility model, by welding components, extruding motors and bent plate columns and other structures, the processing speed of the equipment is greatly enhanced, and the occurrence of cold welding is effectively reduced, the losses caused by cold welding are greatly alleviated, and the cost of manual re-processing is effectively reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is an exploded schematic diagram of the planar parts structure of the base of the utility model;

[0021] Figure 3 This is an exploded schematic diagram of the internal parts structure of the base of the utility model;

[0022] Figure 4 This is an exploded schematic diagram of the structure of the surface parts of the fixing frame of the utility model;

[0023] Figure 5 This is an exploded schematic diagram of the overall connection structure of the utility model device;

[0024] Figure 6 It is an exploded schematic diagram of the parts structure on the other side of the base of the utility model.

[0025] In the figure: 1. Equipment base; 2. Driving motor; 3. Driving shaft; 4. Rotating motor; 5. Bar rotating disk; 6. Card plate; 7. Metal sheet; 8. Fixed frame; 9. Top plate motor; 10. Top plate gear; 11. Top plate gear row; 12. Air press; 13. Air pressure column; 14. Extrusion motor; 15. Pressing plate; 16. Welding assembly; 17. Bending plate motor; 18. Bending plate gear; 19. Bending plate column; 20. Feed conveyor belt; 21. Conveying motor; 22. Driving shaft; 23. Moving conveyor belt; 24. Passive shaft; 25. Film storage bin. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example: Reference Figure 1-Figure 6 The shown device comprises a welding and clamping device for a soft-pack battery tab, comprising an equipment base 1, wherein a driving motor 2 is inserted inside the equipment base 1, a driving shaft 3 is inserted inside the driving motor 2, a rotating motor 4 is inserted on the upper surface of the equipment base 1, a bar-shaped rotating disk 5 is inserted inside the rotating motor 4, a clamping plate 6 is fixedly connected to the upper surface of the bar-shaped rotating disk 5, a metal sheet 7 is inserted inside the bar-shaped rotating disk 5, a fixing frame 8 is clamped on the upper surface of the equipment base 1, a top plate motor 9 is inserted inside the fixing frame 8, a top plate gear 10 is inserted inside the top plate motor 9, a top plate gear row 11 is inserted inside the fixing frame 8, an air press 12 is clamped on the upper surface of the fixing frame 8, an air pressure column 13 is inserted inside the air pressure column 13, an extrusion motor 14 is clamped inside the air pressure column 13, a pressing plate 15 is inserted inside the extrusion motor 14, and a welding assembly 16 is fixedly connected to one side of the equipment base 1.

[0028] As a preferred implementation in this embodiment, Figures 1 to 4As shown, a driving motor 2 is plugged into the interior of the device base 1, a driving shaft 3 is plugged into the interior of the driving motor 2, a rotating motor 4 is plugged into the upper surface of the device base 1, a bar-shaped rotating disk 5 is plugged into the interior of the rotating motor 4, a clamping plate 6 is fixedly connected to the upper surface of the bar-shaped rotating disk 5, a metal sheet 7 is plugged into the interior of the bar-shaped rotating disk 5, a fixing frame 8 is clamped into the upper surface of the device base 1, a top plate motor 9 is plugged into the interior of the fixing frame 8, a top plate gear 10 is plugged into the interior of the top plate motor 9, and a fixing frame 8 is plugged into the interior of the fixing frame 8. There is a top plate gear row 11, an air compressor 12 is clamped on the upper surface of the fixing frame 8, an air pressure column 13 is inserted inside the air compressor 12, an extrusion motor 14 is clamped inside the air pressure column 13, a pressing plate 15 is inserted inside the extrusion motor 14, a gear row is provided on the upper surface of the top plate gear row 11, the gear row and the top plate gear 10 are meshed with each other, a motor compartment is provided on the lower surface of the air pressure column 13, the extrusion motor 14 is clamped inside the motor compartment, and a film storage compartment 25 is clamped on the upper surface of the equipment base 1. During use, it is necessary to The stacked metal sheets 7 are placed in the sheet storage bin 25, and then the rotating motor 4 can be started to rotate the bar-shaped rotating disk 5 to the discharge port of the sheet storage bin 25. The driving motor 2 rotates the driving shaft 3 to use the friction force to throw the metal sheets 7 out. The metal sheets 7 will be inserted into the inside of the bar-shaped rotating disk 5. The clamping plate 6 prevents the metal sheets 7 from falling out during processing. Then the bar-shaped rotating disk 5 is rotated again to align it with the lower surface of the pressing plate 15. When the pole ear of the soft-pack battery is docked with the metal sheet 7, the air compressor 12 is started to lower the air pressure column 13 to press The plate 15 presses against the metal sheet 7, and then the bent plate column 19 processes it. After the processing is completed, the air pressure column 13 rises, and then the top plate motor 9 rotates the top plate gear 10, and the top plate gear 10 drives the top plate gear row 11 to move forward, so that the two iron sheets of the metal sheet 7 that are raised are squeezed inward. After the extrusion is completed, the position of the pressing plate 15 can be rotated by the extrusion motor 14, and then the metal sheet 7 is squeezed again, so that the metal sheet 7 is completely fixed to the pole ear of the soft-pack battery. The fixing frame 8 is mainly used to fix the use angle of the equipment.

[0029] like Figure 5 and Figure 6As shown, in this embodiment, a welding assembly 16 is fixedly connected to one side of the equipment base 1, a bending motor 17 is clamped inside the equipment base 1, a bending gear 18 is sleeved on the outer surface of the bending motor 17, a bending column 19 is inserted at the bottom of the equipment base 1, and a feeding conveyor 20 is fixedly connected to the other side of the equipment base 1, a conveying motor 21 is inserted on one side of the equipment base 1, a driving shaft 22 is inserted inside the conveying motor 21, a moving conveyor 23 is sleeved on the outer surface of the driving shaft 22, and a passive shaft 24 is inserted inside the equipment base 1. During use, when the metal sheet 7 needs to be initially processed, the bending motor 17 needs to rotate the bending gear 18 to control the bending column 19 to rise and extrude the metal sheet 7 so that the two sides of the metal sheet 7 are moved upward. A small iron sheet stands upright. At this time, the pressing plate 15 is pressing the metal sheet 7, and combined with the extrusion of the bent plate column 19, the small iron sheet can be stood upright for subsequent processing. The feeding conveyor belt 20 transports the soft-pack battery to the upper surface of the mobile conveyor belt 23. The conveying motor 21 rotates the active shaft 22 to control the moving direction of the mobile conveyor belt 23, and the passive shaft 24 assists the movement of the soft-pack battery. When the soft-pack battery arrives at the upper surface of the mobile conveyor belt 23, the mobile conveyor belt 23 drives the soft-pack battery to first fix the metal sheet 7 to the pole ear, and then controls the soft-pack battery to move backward and performs laser welding through the welding assembly 16 to completely fix the pole ear and the metal sheet 7. Finally, the soft-pack battery is moved to the next processing step through the mobile conveyor belt 23.

[0030] How this utility works:

[0031] During use, the feeding conveyor belt 20 transports the soft-pack batteries to the upper surface of the moving conveyor belt 23. The stacked metal sheets 7 need to be placed in the storage bin 25. Then the rotating motor 4 can be started to rotate the bar rotating disk 5 to the discharge port of the storage bin 25. The driving motor 2 rotates the driving shaft 3 to use the friction force to throw the metal sheet 7 out. The metal sheet 7 will be inserted into the inside of the bar rotating disk 5. The clamping plate 6 prevents the metal sheet 7 from falling out during processing. Then the bar rotating disk 5 is rotated again to align it with the pressing plate. 15, when the pole ear of the soft-pack battery is docked with the metal sheet 7, the air compressor 12 is started to make the air pressure column 13 descend, the pressing plate 15 supports the metal sheet 7, and the bending plate motor 17 rotates the bending plate gear 18 to control the bending plate column 19 to rise and squeeze the metal sheet 7, so that the two small iron sheets on both sides are vertically erected. At this time, the pressing plate 15 is pressing the metal sheet 7, and the extrusion of the bending plate column 19 is combined, so that the small iron sheets can be vertically erected, the air pressure column 13 rises, and then the top plate motor 9 rotates the top plate gear 10, and the top plate The plate gear 10 drives the top plate gear row 11 to move forward, so that the two iron sheets of the metal sheet 7 that are raised are squeezed inward. After the extrusion is completed, the position of the pressing plate 15 can be rotated by the extrusion motor 14, and then the metal sheet 7 is squeezed again, so that the metal sheet 7 is completely fixed to the pole ear of the soft-pack battery. The fixing frame 8 is mainly used to fix the use angle of the equipment. The conveying motor 21 rotates the active shaft 22 to control the moving direction of the moving conveyor belt 23, and the passive shaft 24 assists the movement of the soft-pack battery. When the soft-pack battery arrives at the upper surface of the moving conveyor belt 23, the moving conveyor belt 23 drives the soft-pack battery to fix the metal sheet 7 to the pole ear first, and then controls the soft-pack battery to move backward and performs laser welding through the welding assembly 16, so that the pole ear and the metal sheet 7 are completely fixed, and finally the soft-pack battery is moved to the next processing step through the moving conveyor belt 23, which greatly enhances the processing speed of the equipment, effectively reduces the occurrence of cold welding, greatly alleviates the losses caused by cold welding, and effectively reduces the cost of manual re-processing.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A soft-pack battery tab welding and pressing device, comprising a device base (1), characterized in that: A driving motor (2) is plugged into the interior of the device base (1), a driving shaft (3) is plugged into the interior of the driving motor (2), a rotating motor (4) is plugged into the upper surface of the device base (1), a bar-shaped rotating disk (5) is plugged into the interior of the rotating motor (4), a clamping plate (6) is fixedly connected to the upper surface of the bar-shaped rotating disk (5), a metal sheet (7) is plugged into the interior of the bar-shaped rotating disk (5), a fixing frame (8) is clamped into the upper surface of the device base (1), and a fixing frame (8) is plugged into the interior of the fixing frame (8). A top plate motor (9) is connected, a top plate gear (10) is inserted into the interior of the top plate motor (9), a top plate gear row (11) is inserted into the interior of the fixed frame (8), an air compressor (12) is clamped on the upper surface of the fixed frame (8), an air pressure column (13) is inserted into the interior of the air compressor (12), an extrusion motor (14) is clamped into the interior of the air pressure column (13), a pressing plate (15) is inserted into the interior of the extrusion motor (14), and a welding component (16) is fixedly connected to one side of the equipment base (1).

2. A soft-pack battery tab welding and pressing device according to claim 1, characterized in that: A tooth row is provided on the upper surface of the top plate tooth row (11), and the tooth row and the top plate gear (10) are meshed with each other.

3. The soft-pack battery tab welding and pressing device according to claim 1, characterized in that: A motor compartment is provided on the lower surface of the air pressure column (13), and an extrusion motor (14) is clamped inside the motor compartment.

4. A soft-pack battery tab welding and clamping device according to claim 1, characterized in that: A bending plate motor (17) is clamped inside the equipment base (1), and a bending plate gear (18) is sleeved on the outer surface of the bending plate motor (17).

5. The soft-pack battery tab welding and clamping device according to claim 1, characterized in that: A bent plate column (19) is inserted into the bottom of the equipment base (1).

6. The soft-pack battery tab welding and clamping device according to claim 1, characterized in that: A feeding conveyor belt (20) is fixedly connected to the other side of the equipment base (1), and a conveying motor (21) is plugged into one side of the equipment base (1).

7. A soft-pack battery tab welding and clamping device according to claim 6, characterized in that: A driving shaft (22) is inserted into the interior of the conveying motor (21), and a moving conveyor belt (23) is sleeved on the outer surface of the driving shaft (22).

8. The soft-pack battery tab welding and clamping device according to claim 1, characterized in that: A passive shaft (24) is inserted into the interior of the device base (1), and a film storage bin (25) is clamped on the upper surface of the device base (1).

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