Novel pairing pre-welding equipment

Abstract

The utility model provides novel pairing pre-welding equipment, which belongs to the technical field of battery cell processing and comprises a workbench, a feeding module is arranged at the upper end of the workbench, and a battery cell overturning module, a jig transplanting module and an NG drawstring are sequentially arranged on one side of the feeding module in the material conveying direction. The material conveying direction of the jig transplanting module is perpendicular to the material conveying direction of the feeding module, and a pre-welding module, a discharging module and a cutting module are sequentially arranged on one side of the jig transplanting module in the material conveying direction. On the basis, due to the fact that the positions of all the modules and the trend of materials are rearranged, the whole device can have the short length and width on the premise that the function requirement is met, the device is suitable for a plant with the small difference of the overall length and width, and space waste is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of battery core processing, and particularly relates to a new type of paired pre-welding equipment. Background Art

[0002] As a new generation of green high-energy batteries with excellent performance, metal square-shell lithium-ion batteries are widely used in many fields such as new energy vehicles, mobile phones, laptops, tablets, etc. because of their high voltage, high capacity, low consumption, no memory effect, pollution-free, small size, low internal resistance, low self-discharge, and many cycles.

[0003] Currently, in the production of metal prismatic lithium-ion batteries, pre-welding equipment is typically located in the middle of the automotive power battery cell assembly section. Its function is to pre-weld the tabs together after the hot pressing of the cell. Furthermore, since the tabs are loose during cell winding, the pre-welding process after tab assembly is a crucial step in the entire production process. The quality of this welding directly impacts the performance and safety of the entire cell.

[0004] To ensure the welding quality and efficiency of battery cell tabs, existing pre-welding equipment typically includes functions such as automatic loading and unloading, cell flipping and pairing, and tab pre-welding. These equipment is equipped with multiple devices, including a loading and unloading robot, a conveyor, a cell flipping device, and a cell tab pre-welding device. However, because existing pre-welding equipment often uses a straight-line layout with two parallel conveyor lines, it is not only relatively long but also places high demands on the length of the factory building. This can easily lead to wasted space, especially for factories with a small difference in length and width. Utility Model Content

[0005] The technical problem solved by the utility model is to provide a new type of matching pre-welding equipment with a simple structure and good maintainability, and to enable it to meet functional requirements on the premise of having a shorter length and width so as to be suitable for factories with a small difference in overall length and width.

[0006] In order to solve the above technical problems, the present invention provides a new type of paired pre-welding equipment, which includes a workbench, a loading module is provided at the upper end of the workbench, and a battery cell flipping module, a jig transfer module, and an NG pull belt are sequentially provided on one side of the loading module along the material conveying direction. The material conveying direction of the jig transfer module is perpendicular to the material conveying direction of the loading module, and a pre-welding module, a blanking module, and a cutting module are sequentially provided on one side of the jig transfer module along the material conveying direction. Based on this, since the present invention rearranges the position of each module and the direction of the material, it can make the entire equipment have a shorter length and width on the premise of meeting functional requirements, so as to be suitable for factories with a small difference in overall length and width, avoiding space waste.

[0007] Furthermore, the loading module includes a loading bracket, which is provided with a dual-axis platform having both horizontal linear motion freedom and vertical linear motion freedom. A rotating platform is installed at the power output end of the dual-axis platform, and a loading robot is installed at the power output end of the rotating platform. The loading robot is driven by the dual-axis platform and the rotating platform to move to the corresponding position to perform battery cell grabbing and battery cell placement actions.

[0008] Furthermore, the cell flip module includes a flip bracket, the upper end of which is vertically slidably mounted with a Z-axis mobile platform. A rotary manipulator is mounted on the Z-axis mobile platform near the loading module. Thus, when a group of cells is moved to the cell flip module by the loading line, the present invention can first use the rotary manipulator to grab and flip one of the cells in the group 180 degrees, and then coordinate the raising and lowering of the Z-axis mobile platform to place the flipped cell back in its original position, completing the corresponding cell flipping action.

[0009] Furthermore, the lower end of the flipping bracket is mounted on the workbench for horizontal sliding through a horizontal linear module, and the sliding direction of the flipping bracket is preferably a horizontal direction perpendicular to the material conveying direction of the loading module, so that it can continuously flip different groups of battery cells and avoid interference with the loading module.

[0010] Furthermore, a buffer platform is provided on one side of the NG pull belt. When the loading material line is used to load the device, the battery cells being transported can first be scanned by the barcode scanning device provided at the output end of the loading material line, and the battery cells can be sent to the corresponding position according to the scanning result. That is, when both battery cells in the group of battery cells are "OK" materials, the loading module can directly grab the group of battery cells and place them on the jig transfer module; when both battery cells are "NG" materials, the group of battery cells will be grabbed to the NG pull belt and discharged by the NG pull belt; when one battery cell in the group of battery cells is "NG" material and the other is "OK" material, the two battery cells will be grabbed at the same time, and the "NG" battery cell will be placed on the NG pull belt and discharged by the NG pull belt, and the "OK" material will be placed on the buffer platform for temporary storage. When the buffer platform is full of a group of battery cells, the loading robot of the loading module will grab this group of battery cells and place them on the jig transfer component.

[0011] Furthermore, the buffer platform is arranged between the NG pull belt and the jig transfer module.

[0012] Furthermore, the jig transfer module includes a mobile platform fixedly arranged on the upper surface of the workbench, and the mobile platform is horizontally slidably installed with a battery cell transfer jig, and the battery cell transfer jig can be moved to the pre-welding module, the cutting module, and the blanking module under the action of the corresponding linear drive mechanism.

[0013] Furthermore, the pre-welding module includes a welding machine transplanting assembly, a cell pressing and tab gathering assembly, which are relatively arranged on both sides of the jig transplanting module. The welding machine transplanting assembly is horizontally slidably installed on the workbench, and the welding machine transplanting assembly carries a welding machine assembly and a dust removal assembly. The cell pressing and tab gathering assembly includes a pre-welding bracket installed on the workbench, and a cell pressing mechanism and a tab gathering mechanism are arranged on one end of the pre-welding bracket close to the welding machine transplanting assembly.

[0014] Furthermore, the cutting module is provided with a cutting frame, and the cutting frame is equipped with a chip collection component and a dust removal component 2, a cutting component, and a safety protection component, wherein the cutting component is used to realize the action of cutting the pole ear, the dust removal component 2 is used to remove dust during the cutting process, the chip collection component is used to collect debris generated during the cutting of the pole ear, and the safety protection component is used to avoid accidents caused by the cutter falling during debugging and maintenance, and it can adopt a simple support structure, that is, directly adopt a pillar structure, and place it between the upper mold and the lower mold of the cutting component when the cutting module is repaired to prevent the upper mold from suddenly falling; it is placed on one side of the cutting frame during normal operation of the cutting module.

[0015] Furthermore, the unloading module includes a unloading bracket, the lower end of the unloading bracket is horizontally slidably installed on the workbench through a horizontal linear module 2, and the upper end of the unloading bracket is vertically slidably installed with a lifting platform, and a unloading robot is installed on one side of the lifting platform. The unloading robot can be driven by the unloading bracket and the lifting platform to move to the corresponding position to perform battery cell grabbing and battery cell placement actions, so as to realize the unloading action of moving the battery cell to the unloading logistics line.

[0016] It can be seen from the above technical solution that the utility model has the following advantages: since the utility model rearranges the position of each module and the direction of the materials, it can make the entire equipment have a shorter length and width on the premise of meeting the functional requirements, so as to be suitable for factories with a small difference in overall length and width, thereby avoiding waste of space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the present invention, the following is a brief introduction to the drawings required for the description. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a structural diagram of a specific embodiment of the utility model;

[0019] Figure 2 This is a structural diagram of the battery cell flip module in the present invention;

[0020] Figure 3 This is a structural diagram of the feeding module in the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the NG pull belt and the buffer platform in the present invention;

[0022] Figure 5 This is a structural diagram of the fixture transplanting module in the present utility model;

[0023] Figure 6 This is a schematic structural diagram of the pre-welding module in the present invention;

[0024] Figure 7 It is a schematic diagram of the structure cut out in the utility model;

[0025] Figure 8 It is a structural schematic diagram of the blanking module in the utility model.

[0026] In the figure: 1. Battery cell flipping module; 2. Loading module; 3. NG pull belt; 4. Jig transfer module; 5. Pre-welding module; 6. Unloading module; 7. Cutting module; 8. Horizontal linear module 1; 9. Z-axis moving platform; 10. Rotating manipulator; 11. Loading bracket; 12. Dual-axis platform; 13. Rotating platform; 14. Loading manipulator; 15. Cache platform; 16. Battery cell transfer jig; 17. Moving platform; 18. Welding machine assembly; 19. Dust removal assembly 1; 20. Battery cell pressing and tab gathering assembly; 21. Chip collection assembly; 22. Dust removal assembly 2; 23. Safety protection assembly; 24. Cutting assembly; 25. Lifting platform; 26. Unloading manipulator; 27. Horizontal linear module 2. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figure 1 As shown, the utility model provides a new type of paired pre-welding equipment, which includes a workbench, a loading module 2 is arranged on the upper end of the workbench, and a battery cell flipping module 1, a jig transfer module 4, a cache platform 15, and an NG pull belt 3 are arranged in sequence along the material conveying direction on one side of the loading module 2, and the material conveying direction of the jig transfer module 4 is arranged perpendicular to the material conveying direction of the loading module 2, and a pre-welding module 5, a blanking module 6, and a cutting module 7 are arranged in sequence along the material conveying direction on the side of the jig transfer module 4 away from the cache platform 15.

[0029] Specifically, if Figure 2 As shown, the cell flipping module 1 includes a flipping bracket, the lower end of which is horizontally slidably mounted on the workbench via a horizontal linear module 8, and the sliding direction of the flipping bracket is preferably a horizontal direction perpendicular to the material conveying direction of the loading module 2, so that it can flip different groups of cells continuously and avoid interference with the loading module 2. A Z-axis moving platform 9 is vertically slidably mounted on the upper end of the flipping bracket, and a rotary manipulator 10 is mounted on the side of the Z-axis moving platform 9 close to the loading module 2. In this way, when a group of cells is moved to the cell flipping module 1 by the loading material line, the utility model can first use the rotary manipulator 10 to grab and flip 180 degrees one of the cells in the group, and then place the flipped cell in its original position in conjunction with the lifting and lowering of the Z-axis moving platform 9 to complete the corresponding cell flipping action.

[0030] like Figure 3 As shown, the loading module 2 includes a loading bracket 11, and the loading bracket 11 is provided with a dual-axis platform 12 which is common on the market and has both horizontal linear motion freedom and vertical linear motion freedom. The power output end of the dual-axis platform 12 is installed with a rotating platform 13, and the power output end of the rotating platform 13 is installed with a loading robot 14, and the loading robot 14 is driven by the dual-axis platform 12 and the rotating platform 13 to move to the corresponding position to perform battery cell grabbing and battery cell placement actions. Moreover, the loading robot 14 preferably adopts a structure driven by an air claw type cylinder on the market to ensure that it can have a simple structure, low cost and good maintainability; in addition, it can also adopt a structure equipped with an anti-collision buffer mechanism on the market, so that when the loading robot 14 collides abnormally with other mechanisms, the anti-collision buffer mechanism there can absorb the pressure and deformation caused by the collision, protecting the safety of the loading robot 14 and the battery cell; and the end of the clamping claw of the loading robot 14 can be made by a polyurethane dipping process to ensure that it does not scratch the battery cell during the clamping process and does not adhere to the surface of the battery cell. The driving source of the dual-axis platform 12 preferably adopts a brake-type servo drive motor, which not only has the advantages of high speed, long handling distance, small installation space, large load, etc., but also can ensure that the lifting axis of the dual-axis platform 12 will not fall when the power is off, thereby improving the safety of the entire module.

[0031] like Figure 4 As shown, the buffer platform 15 is arranged between the NG pull belt 3 and the jig transfer module 4, and when the material loading line is used to load the device, it can first scan the transported battery cells through the scanning device set at the output end of the material loading line, and send the battery cells to the corresponding position according to the scanning result, that is, when the two battery cells in the group of battery cells are "OK" materials, the group of battery cells can be directly grabbed by the loading module 2 and placed on the jig transfer module; when the battery cells are all "NG", the battery cells can be directly grabbed by the loading module 2 and placed on the jig transfer module; when the battery cells are all "NG", the battery cells can be directly grabbed by the loading module 2 and placed on the jig transfer module. If there is no material, the group of battery cells will be grabbed to the NG pull belt 3 and discharged by the NG pull belt 3; when one battery cell in the group of battery cells is "NG" material and the other battery cell is "OK" material, the two battery cells will be grabbed at the same time, and the "NG" battery cell will be placed on the NG pull belt 3 and discharged by the NG pull belt 3, and the "OK" material will be placed on the cache platform 15 for temporary storage. When the cache platform 15 is full of a group of battery cells, the loading robot 14 of the loading module 2 will grab this group of battery cells and place them on the fixture transfer component.

[0032] like Figure 5 As shown, the jig transfer module 4 includes a mobile platform 17 fixedly arranged on the upper surface of the workbench, and the mobile platform 17 is horizontally slidably installed with a battery cell transfer jig 16, and the battery cell transfer jig 16 can be moved to the pre-welding module 5, the cutting module 7, and the blanking module 6 under the action of the corresponding linear drive mechanism.

[0033] like Figure 6 As shown, the pre-welding module 5 includes a welding machine transplanting assembly, a compacting battery cell and a gathering tab assembly 20, which are relatively arranged on both sides of the jig transplanting module 4. The welding machine transplanting assembly is horizontally slidably installed on the workbench, and the welding machine transplanting assembly carries a welding machine assembly 18 and a dust removal assembly 19. The compacting battery cell and the gathering tab assembly 20 include a pre-welding bracket installed on the workbench, and a battery cell compacting mechanism and a tab gathering mechanism are arranged on one end of the pre-welding bracket close to the welding machine transplanting assembly.

[0034] like Figure 7 As shown, the cutting module 7 is provided with a cutting frame, and the cutting frame is equipped with a chip collection component 21 and a dust removal component 22, a cutting component 24, and a safety protection component 23. The cutting component 24 is used to realize the action of cutting the tabs, the dust removal component 22 is used to remove dust during the cutting process, the chip collection component 21 is used to collect debris generated during the cutting process of the tabs, and the safety protection component 23 is used to avoid accidents caused by the cutter falling during debugging and maintenance. It can adopt a simple support structure, that is, directly adopt a pillar structure, and place it between the upper mold and the lower mold of the cutting component 24 when the cutting module 7 is being repaired to prevent the upper mold from falling suddenly; it is placed on one side of the cutting frame during the normal operation of the cutting module 7. In addition, it should be noted that since the chip collection component 21, the dust removal component 2, the cutting component 24, and the safety protection component 23 are all mature technologies on the market, the present utility model will not be described in detail here.

[0035] like Figure 8 As shown, the unloading module 6 includes a unloading bracket, the lower end of the unloading bracket is horizontally slidably installed on the workbench through a horizontal linear module 27, and the upper end of the unloading bracket is vertically slidably installed with a lifting platform 25. A unloading robot 26 is installed on one side of the lifting platform 25, and it can drive the unloading robot 26 to move to the corresponding position through the unloading bracket and the lifting platform 25 to perform battery cell grabbing and battery cell placement actions, so as to realize the unloading action of moving the battery cell to the unloading logistics line.

[0036] In this way, since the present invention rearranges the position of each module and the direction of materials, it can make the entire equipment have a shorter length and width on the premise of meeting functional requirements, so as to be suitable for factories with a small difference in overall length and width, avoiding space waste.

[0037] The terms "first," "second," "third," "fourth," and so on (if any) in the description and claims of the present invention and the accompanying drawings are used to distinguish similar items and are not necessarily used to describe a particular order or sequential sequence. It should be understood that the terms used in this manner are interchangeable where appropriate, such that the embodiments of the present invention described herein can be implemented in sequences other than those illustrated or described herein. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0038] The above description of the disclosed embodiments will enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A new pair pre-welding equipment, comprising a workbench, with a loading module provided on the upper end of the workbench; characterized in that: On one side of the loading module, a cell flipping module, a jig transfer module, and an NG pull belt are sequentially arranged along the material conveying direction. The material conveying direction of the jig transfer module is perpendicular to the material conveying direction of the loading module, and on one side of the jig transfer module, a pre-welding module, a blanking module, and a cutting module are sequentially arranged along the material conveying direction.

2. The new pair pre-welding equipment according to claim 1 is characterized in that: The loading module includes a loading bracket, which is provided with a dual-axis platform with both horizontal linear motion freedom and vertical linear motion freedom. A rotating platform is installed at the power output end of the dual-axis platform, and a loading robot is installed at the power output end of the rotating platform.

3. The new pair pre-welding equipment according to claim 1 is characterized in that: The battery cell flip module includes a flip bracket, the upper end of which is vertically slidably mounted with a Z-axis moving platform, and a rotating manipulator is mounted on the side of the Z-axis moving platform close to the loading module.

4. The new pair pre-welding equipment according to claim 3 is characterized in that: The lower end of the flip bracket is mounted on the workbench through a horizontal linear module for horizontal sliding.

5. The new pair pre-welding equipment according to claim 1 is characterized in that: A buffer platform is provided on one side of the NG drawstring.

6. The new pair pre-welding equipment according to claim 5 is characterized in that: The buffer platform is set between the NG pull belt and the fixture transfer module.

7. The new pair pre-welding equipment according to claim 1 is characterized in that: The fixture transplanting module includes a mobile platform fixedly arranged on the upper surface of the workbench, and the mobile platform is horizontally slidably installed with a battery cell transplanting fixture.

8. The new pair pre-welding equipment according to claim 1 or 7, characterized in that: The pre-welding module includes a welding machine transfer assembly, a cell pressing and tab gathering assembly. The welding machine transfer assembly, the cell pressing and tab gathering assembly are relatively arranged on both sides of the jig transfer module. The welding machine transfer assembly is horizontally slidably installed on the workbench, and the welding machine transfer assembly carries a welding machine assembly and a dust removal assembly. The cell pressing and tab gathering assembly includes a pre-welding bracket installed on the workbench, and a cell pressing mechanism and a tab gathering mechanism are provided on one end of the pre-welding bracket close to the welding machine transfer assembly.

9. The new pair pre-welding equipment according to claim 1, characterized in that: The cutting module is provided with a cutting frame, and the cutting frame is equipped with a chip collection component and a dust removal component 2, a cutting component, and a safety protection component.

10. The new pair pre-welding equipment according to claim 1, characterized in that: The unloading module includes an unloading bracket, the lower end of which is horizontally slidably mounted on the workbench through a horizontal linear module 2, and the upper end of which is vertically slidably mounted with a lifting platform, and an unloading robot is mounted on one side of the lifting platform.

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