Lithium battery front section automatic production line

Abstract

The present application relates to a kind of lithium battery front section automatic production line, including multifunctional integrated machine, automatic nickel sheet equipment and spot welding equipment sequentially arranged from one side to the other side, the multifunctional integrated machine is used to transmit, feeding, punch paper, scan code, test, grade to battery and install into support after grading;The automatic nickel sheet equipment is adjacent to multifunctional integrated machine, for the nickel sheet equipment of multifunctional integrated machine installation into support battery is moved to automatic nickel sheet equipment and installs nickel sheet;The spot welding equipment is adjacent to automatic nickel sheet equipment, for the nickel sheet of battery that is equipped with by automatic nickel sheet equipment is nickel sheet spot welding, complete the production of lithium battery front section.The present application lithium battery front section automatic production line has the advantages of high degree of automation, less floor area, high yield, single machine function and product compatibility.

Description

Technical Field

[0001] This invention relates to the field of lithium battery processing technology, specifically to an automated production line for the front end of a lithium battery. Background Technology

[0002] Current automated production lines for the front-end of 18650 or 21700 lithium batteries suffer from limitations such as single-function equipment, large footprint, high unit manufacturing costs, poor labor savings, and low automation. The front-end equipment primarily performs functions including cell loading, labeling, barcode scanning, cell testing, cell grouping, lower bracket loading, cell placement on the lower bracket, bracket mounting, laser engraving, screw tightening, nickel plate installation, and spot welding. In existing production lines, these functions are mostly performed by independent equipment in various processes. While some multi-functional equipment integrates some functions, due to technical and space limitations, multiple machines are still used to perform these functions. For 18650 and 21700 cells, more equipment means more parts need to be replaced when compatibility is required, leading to higher costs, time, and labor costs. Summary of the Invention

[0003] This invention provides an automated production line for the front end of a lithium battery that solves the above-mentioned technical problems.

[0004] To achieve the above objectives, the following technical solutions are employed.

[0005] An automated production line for the front-end of a lithium battery includes a multi-functional integrated machine, an automatic nickel sheet loading device, and a spot welding device arranged sequentially from one side to the other. The multi-functional integrated machine is used for transferring, feeding, punching barley paper, scanning, testing, and sorting of battery cells, as well as installing the sorted battery cells into brackets. The automatic nickel sheet loading device is arranged adjacent to the multi-functional integrated machine and is used to transfer the battery cells installed into brackets by the multi-functional integrated machine to the automatic nickel sheet loading device for nickel sheet loading. The spot welding device is arranged adjacent to the automatic nickel sheet loading device and is used to spot weld the nickel sheets onto the battery cells that have been loaded with nickel sheets by the automatic nickel sheet loading device, thus completing the front-end production of the lithium battery. This automated production line for the front-end of a lithium battery mainly consists of a multi-functional integrated machine, an automatic nickel sheet loading device, and a spot welding device. It has few individual machines and occupies little space. The entire production line only requires one operator to complete the battery cell loading into brackets, automatic nickel sheet loading, and spot welding, etc., with a high degree of automation.

[0006] Furthermore, the multi-functional integrated machine includes a first chassis, the top of which is a first workbench. A whole-box battery cell feeding line is mounted on the first workbench, located at the front of the first workbench. At one end of the whole-box battery cell feeding line, a single-cell transfer line is provided, perpendicular to the whole-box battery cell feeding line. Starting from one end of the whole-box battery cell feeding line, the single-cell transfer line sequentially includes a battery cell feeding mechanism, a barley paper punching mechanism, and a battery cell barcode scanning mechanism. The battery cell feeding line includes a support mounting module and a battery cell storage channel at the rear. Above the battery cell storage channel is a battery cell pick-and-place module. Between the battery cell pick-and-place module and the battery cell storage channel is a battery cell insertion support mechanism. In front of the battery cell insertion support mechanism is a support mounting module. Below the battery cell insertion support mechanism is a fixture return line. On the outside of the battery cell insertion support mechanism are a laser engraving mechanism for laser engraving the product and a screw-locking mechanism for locking the support.

[0007] The working process and principle of the multi-functional all-in-one machine:

[0008] First, start the whole box battery cell feeding line. Manually place the whole box of battery cells onto the whole box battery cell feeding line. The whole box battery cell feeding line will then transport the battery cells to the next station battery cell loading mechanism.

[0009] The battery cell feeding mechanism is used to pick up and transfer battery cells in rows from the whole-box battery cell feeding production line to the single-cell transfer production line for individual battery cell transfer. The single-cell transfer production line then sequentially transfers each individual battery cell forward to the barley paper punching mechanism, the battery cell scanning mechanism, and the testing mechanism.

[0010] The barley paper punching mechanism punches the barley paper on the battery cell in place. After punching the barley paper, the single battery cell conveyor line continues to transport the battery cell to the next station battery cell scanning mechanism.

[0011] The cell scanning mechanism scans multiple cells simultaneously upon arrival, and then the single-cell transmission line continues to transmit the cells to the next testing station.

[0012] The testing organization performs tiered testing on the delivered battery cells, testing 10 cells in each group. After testing 10 battery cells, the battery cell loading and unloading module at the next workstation will start.

[0013] The battery cell loading and unloading module picks up the tested battery cells, groups them by grade, and moves them to the corresponding channels on the battery cell storage channel. Once the corresponding channel is full, the battery cell loading and unloading module picks up the battery cells that are full in the battery cell storage channel and moves them to the battery cell mounting mechanism.

[0014] Before the battery cell is placed into the bracket, the bracket installation module first clamps the lower bracket from the lower bracket production line and installs it on the fixture return production line. After the battery cell is placed into the bracket, the fixture return production line moves the battery cell to the upper bracket installation station. At this time, the bracket installation module clamps the upper bracket from the upper bracket production line and covers the battery cell with the upper bracket. The fixture return production line then continues to transport the battery cell forward to the laser engraving and screw fastening stations. The laser engraving mechanism performs laser engraving on the battery cell, and the screw fastening mechanism fastens screws on the upper and lower brackets. After the screw fastening is completed, the product enters the next machine for material transfer.

[0015] Furthermore, the cell feeding mechanism includes a cell feeding frame, on which a lower mounting plate and an upper moving plate are provided. The lower mounting plate is located above the whole-box cell feeding line, and a single-cell transfer line is mounted on the lower mounting plate. A material arrival sensor is provided on the outside of the single-cell transfer line located on the lower mounting plate. The upper moving plate is slidably connected to two guide pillars located at the top via a slide block. The upper moving plate is connected to a cell transverse movement cylinder, and a cell picking mechanism is mounted on the upper moving plate. The upper and lower cylinders are connected to the battery cell picking execution end. The upper and lower cylinders drive the picking execution end to move downwards to stop above the battery cell for picking. After picking, the upper and lower cylinders retract, and the picking execution end drives the battery cell attracted to the magnet to rise to the horizontal position. The horizontal cylinder retracts, and the battery cell on the picking execution end is fed along the battery cell feeding guide block. The battery cell is demagnetized by the battery cell demagnetizing baffle and fed to the single-cell whole box battery cell feeding line, from which the battery cell is conveyed forward.

[0016] Furthermore, the top of the cell picking execution end is equipped with a feeding pitch cylinder for adjusting the distance between adjacent picking execution ends. The feeding pitch cylinder is designed to accommodate different cell models. The lower mounting plate is equipped with a pressing cylinder. After the incoming cell is detected by the material arrival sensor, the pressing cylinder is activated to press down the cell, preventing the cutting tool from getting stuck during picking.

[0017] Furthermore, the cell loading and unloading module includes a loading and unloading module frame. One side of the loading and unloading module frame is provided with a unloading mechanism for transferring cells from the cell storage channel mechanism of the previous process, and the other side is provided with a picking mechanism for transferring cells from the storage channel mechanism where a battery pack is full to the mounting bracket mechanism. The unloading mechanism includes a unloading moving module mounted on the loading and unloading module frame and a unloading execution mechanism mounted on the unloading moving module. The picking mechanism includes a picking moving module mounted on the loading and unloading module frame and a picking execution mechanism mounted on the picking moving module. The feeding and picking mechanisms are staggered at both ends of the feeding and picking module frame and move along the feeding and picking moving modules respectively. The battery cell feeding and picking module sets the feeding and picking mechanisms on both sides of the same feeding and picking module frame. The staggered distribution of the feeding and picking mechanisms on the feeding and picking mechanisms at both ends of the feeding and picking module frame effectively concentrates the feeding and picking mechanisms on the same feeding and picking module frame, which simplifies the overall structure, saves costs, and reduces the space required for the battery cell feeding and picking module.

[0018] Furthermore, the unloading moving module and the picking moving module have the same structure, both including a driving component and a belt-type transmission structure. The driving component drives the belt-type transmission structure to move, and the belt-type transmission structure includes a transmission belt with an actuator mounting plate on it. Both the unloading moving module and the picking moving module use a belt-type transmission structure to drive the actuator mounting plate, ensuring stable transmission.

[0019] Furthermore, the material handling module frame is provided with two parallel guide rails on both sides. The two guide rails on the same side are located above and below the conveyor belt, respectively. The execution end mounting plate is slidably connected to the guide rails through a slider, ensuring stable transmission and movement.

[0020] Furthermore, the unloading actuator includes an unloading mounting frame, which includes an upper unloading mounting plate and a lower unloading mounting plate. The upper and lower unloading mounting plates are connected by an unloading column. An unloading distance adjustment component is sleeved on the unloading column between the upper and lower unloading mounting plates. One end of the upper unloading mounting plate is connected to the unloading vertical plate. The unloading vertical plate is mounted on the execution end mounting plate on the side of the unloading moving module. An unloading up-and-down cylinder is mounted on the upper unloading mounting plate. The output end of the unloading up-and-down cylinder is connected to the lower unloading mounting plate. An unloading execution end is located below the lower unloading mounting plate. An unloading angle cylinder is located on the lower unloading mounting plate. The output end of the unloading angle cylinder is connected to the unloading execution end.

[0021] Furthermore, the unloading execution end includes an unloading execution frame and an unloading limiting component. An unloading cylinder is installed on the upper part of the unloading execution frame, and the unloading limiting component is located at the bottom of the unloading execution frame. A V-shaped limiting groove is provided at the bottom of the unloading limiting component, and an unloading execution component is provided on the unloading limiting component. The unloading execution component is connected to the unloading cylinder. Demagnetizing baffles are provided on the front and rear sides of the unloading execution component.

[0022] Furthermore, the material handling actuator includes a material handling mounting frame, which includes an upper material handling mounting plate and a lower material handling mounting plate. The upper and lower material handling mounting plates are connected by a material handling column. A material handling distance adjustment component is sleeved on the material handling column between the upper and lower material handling mounting plates. One end of the upper material handling mounting plate is connected to the material handling column. The material handling column is mounted on the execution end mounting plate on the side of the unloading moving module. A material handling up and down cylinder is mounted on the upper material handling mounting plate. The output end of the material handling up and down cylinder is connected to the lower material handling mounting plate. A material handling execution end is located below the lower material handling mounting plate. A material handling angle cylinder is located on the lower material handling mounting plate. The output end of the material handling angle cylinder is connected to the material handling execution end.

[0023] Furthermore, the material handling execution end includes a material handling execution frame and a material handling variable distance execution end. The material handling variable distance execution end includes a variable distance frame, a material handling variable distance cylinder is installed on the upper part of the variable distance frame, a variable distance sliding block is provided inside the variable distance frame, and a material gripping execution end is provided below the variable distance sliding block.

[0024] Furthermore, the bracket mounting module includes a fixed frame, an X-axis moving module on the fixed frame, a Y-axis moving module that moves along the X-axis on the X-axis moving module, a Z-axis moving module that moves along the Y-axis moving module, and an upper bracket clamping component and a lower bracket clamping component that move up and down along the Z-axis moving module.

[0025] Furthermore, the first workbench is also equipped with a bracket assembly line, which is located outside the bracket mounting module and includes an upper bracket assembly line and a lower bracket assembly line. The end of the lower bracket assembly line is equipped with a bracket flipping and positioning mechanism for flipping, adjusting and positioning the upper bracket conveyed on the upper bracket assembly line. A fixture return assembly line is provided between the bracket assembly line and the cell insertion bracket mechanism.

[0026] Furthermore, the fixture return production line includes an upper line for conveying fixtures to each processing station and a lower line for fixture return. The bottom of the output end of the upper line is provided with a descending cylinder for moving the fixture to the lower line, the bottom of the return end of the lower line is provided with a rising cylinder for moving the fixture to the upper line, and the outer side of the return end of the lower line is provided with a pushing cylinder for pushing the fixture onto the upper line. The upper line is provided with a lower support installation station, an upper support installation station, and laser engraving and screw fastening stations.

[0027] Furthermore, the automatic nickel sheet loading equipment includes a second chassis, the top of which is a second workbench. On the end of the second workbench adjacent to the multi-functional integrated machine, from front to back, there are sequentially arranged a nickel sheet loading and unloading robot and a material transfer mechanism for the spot welding fixture lifting mechanism. At the middle of the end of the second workbench away from the multi-functional integrated machine, there is a spot welding fixture production line. On the front and rear sides of the spot welding fixture production line, there are a first nickel sheet loading mechanism and a second nickel sheet loading mechanism, respectively. Inside the housing, there is a spot welding fixture lower return production line corresponding to the spot welding fixture production line.

[0028] The working process and principle of the automatic nickel sheet loading equipment:

[0029] First, the spot welding fixture lifting mechanism in the automatic nickel sheet loading equipment transports the spot welding fixture from the return line to the top to wait. Then, the nickel sheet loading and unloading robot starts, transferring the battery pack from the output end of the multi-functional integrated machine to the spot welding fixture on the spot welding fixture production line. The spot welding fixture production line then conveys the spot welding fixture containing the battery pack upwards. At the same time, the first and second nickel sheet loading mechanisms on both sides of the spot welding fixture production line start to automatically install the nickel sheets on the left and right hinges of the spot welding fixture. Then, the spot welding fixture production line continues to transport the spot welding fixture forward to the next piece of equipment—the spot welding equipment.

[0030] Furthermore, the spot welding equipment includes a third chassis, the top of which is a third workbench. An upper spot welding fixture assembly line is provided on the third workbench, corresponding to the spot welding fixture assembly line in the automatic nickel sheet loading equipment. This allows the spot welding fixture containing the battery pack to be conveyed forward from the battery pack assembly line to the upper spot welding fixture assembly line. The upper spot welding fixture assembly line, from one end adjacent to the automatic nickel sheet loading equipment to the other end, sequentially includes a first spot welding station, a second spot welding station, and a third spot welding station. The system includes a welding station, a fourth spot welding station, and a fifth spot welding station. The first spot welding station is equipped with a first spot welding fixture flipping mechanism on its front side, the third spot welding station is equipped with a second spot welding fixture flipping mechanism on its front side, and the fourth spot welding station is equipped with a third spot welding fixture flipping mechanism on its front side. A spot welding module and a spot welding unloading robot are provided on the rear side of the upper spot welding fixture production line. A fixture return lifting mechanism is provided at the output end of the upper spot welding fixture production line. The machine housing contains a lower spot welding fixture production line that cooperates with the upper spot welding fixture production line.

[0031] The working process and principle of the spot welding equipment:

[0032] When the battery pack is conveyed forward from the spot welding fixture assembly line on the automatic nickel sheet loading equipment to the first spot welding station on the upper assembly line of the spot welding equipment, the first spot welding fixture flipping mechanism located outside the first spot welding station is activated to flip the fixture 90 degrees counterclockwise. The fixture continues to move forward on the upper assembly line to the second spot welding station. At this time, the spot welding module is activated to perform nickel sheet spot welding on the battery pack. After the nickel sheet spot welding is completed, the fixture drives the battery pack to continue moving forward along the upper assembly line to the third spot welding station. At this time, the second spot welding fixture flipping mechanism located outside the third spot welding station is activated to rotate the fixture and battery pack 180 degrees clockwise. The battery pack is flipped over, and the spot welding module starts again to spot weld nickel sheets on the other side of the battery pack. After spot welding is completed, the battery pack continues to move forward along the upper assembly line of the spot welding fixture to the fourth spot welding station. At this time, the third spot welding fixture flipping mechanism located outside the fourth spot welding station flips the spot welding fixture 90 degrees counterclockwise and opens the hinge of the spot welding fixture at this fourth spot welding station. The spot welding fixture, along with the battery pack, continues to move forward along the upper assembly line of the spot welding fixture to the fifth spot welding station. After the spot welding unloading robot unloads the material, the fixture return lifting mechanism transfers the spot welding fixture located on the upper assembly line of the spot welding fixture to the lower assembly line of the spot welding fixture for return.

[0033] Compared with existing technologies, the automated production line for the front end of lithium batteries of this invention has the following advantages:

[0034] First, it has a high degree of automation. The entire lithium battery front-end automatic production line of this invention only requires one operator to be responsible for feeding the whole box of battery cells, changing the barley paper, and feeding the upper and lower brackets to complete the battery cell insertion into the bracket, automatic nickel sheet loading, spot welding, etc., which has a high degree of automation.

[0035] Secondly, it occupies less space. The automated production line for the front end of the lithium battery in this invention is mainly composed of a multi-functional integrated machine, an automatic nickel sheet loading equipment and a spot welding equipment. The five pieces of equipment in the existing technology are reduced to three pieces of equipment without reducing the functionality. The number of individual pieces of equipment is small, which greatly reduces the footprint.

[0036] Third, the single machine has multiple functions. The multi-functional integrated machine in the automated production line of lithium battery front end of this invention integrates feeding, punching and pasting barley paper, scanning, testing, feeding, storage, insertion into bracket, laser engraving and bracket screw locking into one unit. It has multiple functions and only requires one operator to complete the feeding of the whole box of battery cells, which greatly reduces labor costs.

[0037] Fourth, the product yield is high. The entire production line only requires one operator to load materials and operate equipment, which greatly reduces the occurrence of human error and effectively avoids damage to components by human hands, thus effectively improving the product yield.

[0038] Fifth, the product has high compatibility and interchangeability. The production line of this invention is compatible with both 18650 and 21700 battery cells, which can be achieved simply by changing the workpiece. The product has high compatibility and interchangeability. Attached Figure Description

[0039] Appendix Figure 1 This is a plan view of the automated production line for the front end of the lithium battery of the present invention;

[0040] Appendix Figure 2 This is a schematic diagram of the structure of the multi-functional integrated machine in the automated production line for the front end of the lithium battery of the present invention. Figure 1 ;

[0041] Appendix Figure 3 This is a schematic diagram of the structure of the multi-functional integrated machine in the automated production line for the front end of the lithium battery of the present invention. Figure 2 ;

[0042] Appendix Figure 4 This is a plan view of the multi-functional integrated machine in the automated production line for the front end of the lithium battery of the present invention;

[0043] Appendix Figure 5 This is a schematic diagram showing the positional relationship between the cell feeding mechanism of the multi-functional integrated machine in the front-end automatic production line of lithium batteries of the present invention and the whole box cell feeding line and the single cell transmission line.

[0044] Appendix Figure 6This is a schematic diagram of the cell feeding mechanism of the multi-functional integrated machine in the automated production line of lithium batteries of the present invention.

[0045] Appendix Figure 7 This is a schematic diagram of the cell loading and unloading module of the multi-functional integrated machine in the automated lithium battery front-end production line of the present invention. Figure 1 ;

[0046] Appendix Figure 8 This is a schematic diagram of the cell loading and unloading module of the multi-functional integrated machine in the automated lithium battery front-end production line of the present invention. Figure 2 ;

[0047] Appendix Figure 9 For the appendix Figure 7 Schematic diagram of the structure of the feeding and unloading moving module;

[0048] Appendix Figure 10 For the appendix Figure 7 Schematic diagram of the feeding and unloading actuator;

[0049] Appendix Figure 11 For the appendix Figure 10 A partial schematic diagram of the material feeding and unloading execution end;

[0050] Appendix Figure 12 For the appendix Figure 8 A schematic diagram of the structure of the material handling actuator;

[0051] Appendix Figure 13 For the appendix Figure 12 Schematic diagram of the structure of the variable-pitch actuator for material feeding;

[0052] Appendix Figure 14 This is a schematic diagram of the bracket mounting module of the multi-functional integrated machine in the lithium battery front-end automated production line of the present invention;

[0053] Appendix Figure 15 For the appendix Figure 14 A partial enlarged view of the actuator of the middle support;

[0054] Appendix Figure 16 This is a schematic diagram of the fixture return line of the multi-functional integrated machine in the lithium battery front-end automated production line of the present invention;

[0055] Appendix Figure 17 This diagram shows the positional relationship between the fixture return line and the support line of the multi-functional integrated machine in the automated lithium battery front-end production line of the present invention.

[0056] Appendix Figure 18 This is a schematic diagram of the automatic nickel sheet loading equipment in the lithium battery front-end automated production line of the present invention;

[0057] Appendix Figure 19 This is a plan view of the automatic nickel sheet loading equipment in the lithium battery front-end automated production line of the present invention;

[0058] Appendix Figure 20 This is a schematic diagram of the spot welding equipment in the automated production line for the front end of the lithium battery of the present invention;

[0059] Appendix Figure 21 This is a plan view of the spot welding equipment in the automated production line for the front end of the lithium battery of the present invention. Detailed Implementation

[0060] The automated production line for the front end of the lithium battery of the present invention will be described in further detail below with reference to specific embodiments and accompanying drawings.

[0061] Reference Figures 1 to 21 According to a non-limiting embodiment of the present invention, an automated production line for the front-end of a lithium battery includes a multi-functional integrated machine 1000, an automatic nickel sheet loading device 2000, and a spot welding device 3000 arranged sequentially from one side to the other. The multi-functional integrated machine 1000 is used for conveying, feeding, punching barley paper, scanning, testing, and grading battery cells, as well as installing the graded battery cells into a bracket. The automatic nickel sheet loading device 2000 is arranged adjacent to the multi-functional integrated machine 1000 and is used to transfer the battery cells installed into the bracket by the multi-functional integrated machine 1000 to the automatic nickel sheet loading device 2000 for nickel sheet loading. The spot welding device 3000 is arranged adjacent to the automatic nickel sheet loading device 2000 and is used to spot weld the nickel sheets of the battery cells loaded with nickel sheets by the automatic nickel sheet loading device 2000, thereby completing the front-end production of the lithium battery. The automated production line for the front end of lithium batteries of this invention mainly consists of a multi-functional integrated machine 1000, an automatic nickel sheet loading device 2000, and a spot welding device 3000. It has few individual machines and occupies little space. The entire production line only requires one operator to load materials to complete the cell insertion into the bracket, automatic nickel sheet loading, spot welding, etc., with a high degree of automation.

[0062] Reference Figures 2 to 17According to a non-limiting embodiment of the present invention, the multi-functional all-in-one machine 1000 includes a first chassis 1100, the top of which is a first workbench 1110. A whole-box battery cell feeding line 1200 is provided on the first workbench 1110, located at the front of the first workbench 1110. At one end of the whole-box battery cell feeding line 1200, a single-cell transmission line 1300 is provided, perpendicularly distributed to the whole-box battery cell feeding line 1200. Starting from one end of the whole-box battery cell feeding line 1200, the single-cell transmission line 1300 is sequentially provided with a battery cell loading mechanism 1310, a barley paper punching mechanism 1320, and a battery cell barcode scanning mechanism. 1330 and testing mechanism 1340, the battery cell feeding line 1200 is followed by a bracket mounting module 1400 and a battery cell storage channel 1600, a battery cell picking and placing module 1500 is provided above the battery cell storage channel 1600, a battery cell inserting bracket mechanism 1420 is provided between the battery cell picking and placing module 1500 and the battery cell storage channel 1600, a bracket mounting module 1400 is provided in front of the battery cell inserting bracket mechanism 1420, a fixture return line 1900 is provided below the battery cell inserting bracket mechanism 1420, a laser engraving mechanism 1700 for laser engraving the product and a screw-locking mechanism 1800 for locking the bracket are provided on the outside of the battery cell inserting bracket mechanism 1420. The multi-functional integrated machine 1000 integrates feeding, barley paper stamping, barcode scanning, testing, feeding, storage, bracket insertion, laser engraving, and bracket screw tightening into one unit, greatly reducing the number of independent equipment in the front-end automated production line of lithium batteries, effectively reducing the equipment's footprint and area, and significantly lowering equipment purchase costs. The production line can be completed by only one operator in the feeding, barley paper stamping, barcode scanning, testing, feeding, storage, bracket insertion, laser engraving, and bracket screw tightening processes, greatly reducing labor costs.The multi-functional integrated machine 1000 features a front-mounted whole-box battery cell feeding line 1200 and a left-mounted, vertically distributed single-cell transfer line 1300. A cell loading mechanism 1310 is located at the intersection of the whole-box battery cell feeding line 1200 and the single-cell transfer line 1300 to transfer the battery cells from the whole-box battery cell feeding line 1200 to the single-cell transfer line 1300 for further transfer. The production line 1300 transports battery cells forward. On the single-cell transport production line 1300, a barley paper punching mechanism 1320, a cell scanning mechanism 1330, and a testing mechanism 1340 are sequentially installed, used for punching barley paper, scanning codes, and performing grading tests on the arriving battery cells, respectively. Behind the whole-box battery cell feeding production line 1200, a bracket mounting module 1400 and a battery cell storage channel 1600 are installed. Above the battery cell storage channel 1600, a battery cell insertion bracket mechanism 1420 and a battery cell pick-and-place mechanism are sequentially installed. The material module 1500 has a laser engraving mechanism 1700 and a screw-locking mechanism 1800 on the outside of the cell insertion bracket mechanism 1420. After the cells on the single cell transport line 1300 are punched, scanned, and sorted for testing, the cell loading and unloading module 1500 transfers the cells to the cell storage channel 1600 below. Once the cell storage channel 1600 is full, the cell loading and unloading module 1500 transfers the cells to the cell insertion bracket mechanism 1420. Before the battery cell enters the rack, the support mounting module 1400 first installs the lower support onto the fixture return line 1900. After the battery cell enters the rack, the support mounting module 1400 then covers the upper support onto the battery cell. Finally, the battery cell continues to be conveyed forward by the fixture return line 1900 to the laser engraving and screw-locking stations. The laser engraving mechanism 1700 performs laser engraving on the battery cell, and the screw-locking mechanism 1800 locks screws onto the upper and lower supports. After screw-locking, the product enters the next machine for material transfer. The multi-functional integrated machine 1000 has a compact structure, reasonable distribution, and occupies little space, greatly improving the utilization rate of the site.

[0063] Reference Figures 1 to 6In a non-limiting embodiment of the present invention, the cell loading mechanism 1310 includes a cell loading mechanism frame 1311. The cell loading mechanism frame 1311 is provided with a lower mounting plate 1312 and an upper moving plate 1313. The lower mounting plate 1312 is located above the whole-box cell feeding line 1200. A single-cell transfer line 1300 is mounted on the lower mounting plate 1312. A material arrival sensor 13121 is provided on the outer side of the single-cell transfer line 1300 on the lower mounting plate 1312. The upper moving plate 1313 is slidably connected to two guide posts 13132 located at the top via a slide block 13131. The upper moving plate 1313 is connected to a cell transverse movement cylinder 13133. A cell picking up and down cylinder 13134 is installed on 1313. The output end of the cell picking up and down cylinder 13134 is connected to the cell picking execution end 13135. The cell picking execution end 13135 is driven to move downward to stop above the cell to pick up the cell. After the cell is picked up, the cell picking up and down cylinder 13134 retracts. The cell picking execution end 13135 drives the cell attracted to the magnet to rise to the horizontal position. The cell horizontal movement cylinder 13133 retracts, and drives the cell on the cell picking execution end 13135 to be fed along the cell feeding guide block 314. The cell is demagnetized by the cell demagnetizing baffle 315 and fed to the single-cell whole box cell feeding line 1200. The single-cell whole box cell feeding line 1200 conveys the cell forward.

[0064] Reference Figures 1 to 6 In a non-limiting embodiment of the present invention, the top of the cell feeding execution end 13135 is provided with a feeding variable pitch cylinder 13136 for adjusting the distance between adjacent cell feeding execution ends 13135. The feeding variable pitch cylinder 13136 is provided to adapt to different types of cells, such as the common 18650 cell and 211700 cell.

[0065] Reference Figures 1 to 6 In a non-limiting embodiment of the present invention, the lower mounting plate 1312 is provided with a pressing cylinder 13122. After the material arrival sensor 13121 senses that the battery cell is in place, the pressing cylinder 13122 is activated to press down the battery cell to prevent the knife from being stuck when picking up the material.

[0066] Reference Figures 1 to 4 , Figure 7 and Figure 8In a non-limiting embodiment of the present invention, the cell loading and unloading module 1500 includes a loading and unloading module frame 1510. One side of the loading and unloading module frame 1510 is provided with a unloading mechanism for transferring cells from the previous process's cell storage channel 1600 mechanism, and the other side is provided with a loading mechanism for transferring cells from the cell storage channel 1600, which is filled with cells from a battery pack storage channel, to the cell insertion bracket mechanism 1420. The unloading mechanism includes a unloading device mounted on the loading and unloading module frame 1510. The moving module 1520 and the unloading actuator 1530 mounted on the unloading moving module 1520 are included. The picking mechanism includes a picking moving module 1540 mounted on the picking and placing module frame 1510 and a picking actuator 1550 mounted on the picking moving module 1540. The unloading actuator 1530 and the picking actuator 1550 are staggered at both ends of the picking and placing module frame 1510 and move along the unloading moving module 1520 and the picking moving module 1540, respectively. The cell loading and unloading module 1500 has the unloading mechanism and the unloading mechanism respectively located on both sides of the same loading and unloading module frame 1510. The unloading actuator 1530 and the unloading actuator 1550 on the unloading mechanism and the unloading mechanism are staggered at both ends of the loading and unloading module frame 1510. This arrangement effectively concentrates the unloading mechanism and the unloading mechanism on the same loading and unloading module frame 1510, simplifying the overall structure, saving costs, and reducing the space required for the cell loading and unloading module 1500. The unloading mechanism is used to grab and transfer the cells that have undergone grading testing in the previous process to the corresponding grade channel on the storage channel. After the cell grade channel is full, the unloading mechanism grabs the cells in the full grade channel and transfers them to the bracket insertion mechanism for cell insertion into the bracket.

[0067] Reference Figures 1 to 4 , Figures 7 to 9 In a non-limiting embodiment of the present invention, the unloading moving module 1520 and the picking moving module 1540 have the same structure, both including a driving component 1521 and a belt-type transmission structure. The driving component 1521 drives the belt-type transmission structure to move. The belt-type transmission structure includes a transmission belt 1522, on which an execution end mounting plate 1524 is provided. Both the unloading moving module 1520 and the picking moving module 1540 use a belt-type transmission structure to drive the execution end mounting plate 1524, resulting in stable transmission. The driving component 1521 is a motor, which has high driving precision, ensuring stable belt transmission, and thus causing the execution end mounting plate 1524 mounted on the belt to move along with the execution end.

[0068] Reference Figures 1 to 4 , Figures 7 to 9In a non-limiting embodiment of the present invention, the material handling module frame 1510 is provided with two parallel guide rails 1523 on both sides. The two guide rails 1523 on the same side are located above and below the conveyor belt 1522, respectively. The execution end mounting plate 1524 is slidably connected to the guide rails 1523 through a slider, so that the transmission and movement are stable.

[0069] Reference Figures 1 to 4 , Figure 7 , Figure 10 and Figure 11 In a non-limiting embodiment of the present invention, the unloading actuator 1530 includes an unloading mounting frame 1531, which includes an upper unloading mounting plate 15312 and a lower unloading mounting plate 15314. The upper unloading mounting plate 15312 and the lower unloading mounting plate 15314 are connected by an unloading column 15315. An unloading distance adjusting member 15313 is sleeved on the unloading column 15315 between the upper unloading mounting plate 15312 and the lower unloading mounting plate 15314. One end of the upper unloading mounting plate 15312 is connected to the unloading vertical plate. The unloading vertical plate is mounted on the execution end mounting plate 1524 on the side of the unloading moving module 1520. The unloading distance adjusting member 15313 can be used to adjust the distance between the lower unloading mounting plate 15314 and the upper unloading mounting plate 15312, making the application of the unloading actuator 1530 more convenient and flexible.

[0070] Reference Figures 1 to 4 , Figure 7 , Figure 10 and Figure 11 In a non-limiting embodiment of the present invention, a feeding lifting cylinder 1532 is mounted on the upper feeding mounting plate 15312. The output end of the feeding lifting cylinder 1532 is connected to the lower feeding mounting plate 15314. A feeding execution end 1533 is provided below the lower feeding mounting plate 15314. A feeding angle cylinder 1534 is provided on the lower feeding mounting plate 15314, and the output end of the feeding angle cylinder 1534 is connected to the feeding execution end 1533. The feeding lifting cylinder 1532 is used to adjust the vertical height of the feeding execution end 1533 to a suitable position, and the feeding angle cylinder 1534 is used to adjust the angle of the feeding execution end 1533. During operation, the feeding cylinder 1532 extends, controlling the feeding actuator 1533 to move down to above the upper battery cell. The feeding actuator 1533 is then activated, picking up the battery cell. Then, the feeding cylinder 1532 retracts, and the feeding angle cylinder 1534 extends to adjust the angle of the feeding actuator 1533 so that it is parallel to the storage channel. The feeding cylinder 1532 extends, the feeding actuator 1533 demagnetizes, and the picked-up battery cell is delivered to the corresponding gear channel on the storage channel.

[0071] Reference Figures 1 to 4 , Figure 7 , Figure 10 and Figure 11 In a non-limiting embodiment of the present invention, the unloading execution end 1533 includes an unloading execution frame 15331 and an unloading limiting member 15332. An unloading cylinder 15333 is installed on the upper part of the unloading execution frame 15331, and the unloading limiting member 15332 is located at the bottom of the unloading execution frame 15331. A V-shaped limiting groove 153321 is provided at the bottom of the unloading limiting member 15332, and an unloading execution member 15334 is provided on the unloading limiting member 15332. The unloading execution member 15334 is connected to the unloading cylinder 15333. The unloading execution member 15334 is a magnetic suction type execution member. During operation, the unloading cylinder 15333 controls the unloading execution member 15334 to move down to above the battery cell, and the unloading execution member 15334 magnetically suctions the battery cell into the V-shaped limiting groove 153321 in the unloading limiting member 15332.

[0072] Reference Figures 1 to 4 , Figure 7 , Figure 10 and Figure 11 In a non-limiting embodiment of the present invention, the front and rear sides of the feeding actuator 15334 are respectively provided with demagnetizing baffles 15335. When the feeding actuator 1533 moves the battery cell to the top of the storage channel, the demagnetizing baffles 15335 block the battery cell from the magnet by a certain distance. When the attraction force is not sufficient to overcome the weight of the battery cell, the feeding actuator 1533 delivers the battery cell to the corresponding gear channel of the storage channel to complete the feeding process.

[0073] Reference Figures 1 to 4 , Figure 8 , Figure 12 and Figure 13 In a non-limiting embodiment of the present invention, the material picking actuator 1550 includes a material picking mounting frame 1551, which includes an upper material picking mounting plate 15512 and a lower material picking mounting plate 15514. The upper material picking mounting plate 15512 and the lower material picking mounting plate 15514 are connected by a material picking column 15515. A material picking distance adjusting member 15513 is sleeved on the material picking column 15515 between the upper material picking mounting plate 15512 and the lower material picking mounting plate 15514. One end of the upper material picking mounting plate 15512 is connected to the material picking upright plate 15511. The material picking upright plate 15511 is installed on the execution end mounting plate 1524 on the side of the unloading moving module 1520. The overall structure and working principle of the material picking actuator 1550 are similar to those of the unloading actuator 1530, and will not be described in detail here.

[0074] Reference Figures 1 to 4 , Figure 8 , Figure 12 and Figure 13 In a non-limiting embodiment of the present invention, a material picking up and down cylinder 1552 is installed on the material picking upper mounting plate 15512. The output end of the material picking up and down cylinder 1552 is connected to the material picking lower mounting plate 15514. A material picking execution end 1553 is provided below the material picking lower mounting plate 15514. A material picking angle cylinder 1554 is provided on the material picking lower mounting plate 15514. The output end of the material picking angle cylinder 1554 is connected to the material picking execution end 1553.

[0075] Reference Figures 1 to 4 , Figure 8 , Figure 12 and Figure 13 In a non-limiting embodiment of the present invention, the material picking execution end 1553 includes a material picking execution frame 15531 and a material picking variable pitch execution end 15532. The material picking variable pitch execution end 15532 includes a variable pitch frame 155321, a material picking variable pitch cylinder 155322 is mounted on the upper part of the variable pitch frame 155321, a variable pitch sliding block 155323 is provided inside the variable pitch sliding block 155323, and a material gripping execution end 155324 is provided below the variable pitch sliding block 155323. The material picking execution end 15533 includes the material picking variable pitch execution end 15532, which is used to realize the picking and transfer of battery cells of different specifications. The structure and principle of the material gripping execution end 155324 are the same as the magnetic suction material picking and unloading structure and principle of the unloading execution end 1533, and will not be described again here.

[0076] Reference Figures 1 to 4 , Figure 14 and Figure 15 In a non-limiting embodiment of the present invention, the bracket mounting module 1400 includes a fixed frame 1430, an X-axis moving module 1440 is provided on the fixed frame 1430, a Y-axis moving module 1450 is provided on the X-axis moving module 1440, a Z-axis moving module 1460 is provided on the Y-axis moving module 1450, and an upper bracket clamping member 1461 and a lower bracket clamping member 1462 are provided on the Z-axis moving module 1460, which move up and down along the Z-axis. Both the upper bracket clamping member 1461 and the lower bracket clamping member 1462 are cylinder-driven gripper structures.

[0077] Reference Figures 1 to 4 , Figure 16 and Figure 17In a non-limiting embodiment of the present invention, the first workbench 1110 is further provided with a bracket assembly line 1410. The bracket assembly line 1410 is located outside the bracket mounting module 1400 and includes an upper bracket assembly line 1411 and a lower bracket assembly line 1412. The end of the lower bracket assembly line 1412 is provided with a bracket flipping and positioning mechanism 1413. The bracket flipping and positioning mechanism 1413 is a flipping cylinder with a gripper, used to flip, adjust and position the upper bracket conveyed on the upper bracket assembly line 1411. A fixture return assembly line 1900 is provided between the bracket assembly line 1410 and the cell insertion bracket mechanism 1420.

[0078] Reference Figures 1 to 4 , Figure 16 and Figure 17In a non-limiting embodiment of the present invention, the fixture return line 1900 includes an upper line 1910 for conveying fixtures to each processing station and a lower line 1920 for fixture return. The bottom of the output end of the upper line 1910 is provided with a descending cylinder 1930 for moving the fixture to the lower line 1920. The bottom of the return end of the lower line 1920 is provided with a rising cylinder 1940 for moving the fixture to the upper line 1910. The outer side of the return end of the lower line 1920 is provided with a mechanism for pushing the fixture to the upper line 1910. The upper push cylinder 1950 is provided. The upper line 1910 is equipped with a lower bracket installation station 1960, an upper bracket installation station 1970, a laser engraving station 1980, and a screw fastening station 1990. The fixture return line 1900 is used to transport and return fixtures through the upper line 1910 and the lower line 1920. When the upper line 1910 transports the fixture to the lower bracket installation station 1960, the lower bracket clamping component 1462 on the bracket installation module 1400 is activated to clamp the lower bracket that has been transported to the lower bracket assembly line 1412 and transfer it to the lower bracket assembly line 1412. At installation station 1960, the cell feeding module 1500 starts and transfers the same grade cells filled in the storage channel to the cell unloading channel on the cell mounting mechanism 1420, allowing the cells to enter the lower bracket. Then, the fixture return line 1900 continues to convey the fixture with the lower bracket and cells to the upper bracket installation station 1970. At this time, the upper bracket clamping component 1461 in the bracket installation module 1420 starts, clamping the upper bracket conveyed in place on the upper bracket line 1411 and transferring it to the upper bracket installation station 1970, where the cell is covered. The upper bracket is then fed forward by the fixture return line 1900 to the laser engraving station 1980, where the laser engraving mechanism 1700, located outside the laser engraving station 1980, performs laser engraving on the battery cell. After laser engraving, the fixture return line 1900 continues to feed the battery cell forward to the screw fastening station 1990, where the screw fastening mechanism 1800, located outside the screw fastening station 1990, performs screw fastening on the upper and lower brackets. After the upper and lower brackets are screwed, the fixture return line 1900 continues to feed the battery cell forward to the next device for material transfer.

[0079] Reference Figures 1 to 16 The working process and principle of a multi-functional all-in-one machine of the present invention:

[0080] First, start the whole box battery cell feeding line 1200. The whole box battery cells are placed on the whole box battery cell feeding line 1200 by the operator. The whole box battery cell feeding line 1200 will transport the battery cells to the next station battery cell loading mechanism 1310.

[0081] The battery cell feeding mechanism 1310 picks up and transfers the battery cells in rows from the whole box battery cell feeding line 1200 to the single battery cell transfer line 1300 for single battery cell transfer. The single battery cell transfer line 1300 sequentially transfers each single battery cell forward to the barley paper cutting mechanism 320, the battery cell scanning mechanism 330, and the testing mechanism 340. Among them, the barley paper cutting mechanism 320 cuts the barley paper on the battery cells that have arrived. After cutting the barley paper, each battery cell is... The cell transfer line 1300 continues to transfer cells forward to the next station, the cell scanning mechanism 330. The cell scanning mechanism 330 scans multiple cells simultaneously, and then the single cell transfer line 1300 continues to transfer cells forward to the next station, the testing mechanism 340. The testing mechanism 340 performs grading tests on the cells, testing 10 cells per group. After testing 10 cells, the cell loading and unloading module 1500 at the next station is activated.

[0082] The battery cell picking and dispensing module 1500 picks up the tested battery cells, groups the battery cells by grade, and transfers the battery cells to the corresponding channels on the battery cell storage channel 1600. After the corresponding channel is full of battery cells, the battery cell picking and dispensing module 1500 picks up the battery cells that are full in the battery cell storage channel 1600 and transfers them to the battery cell mounting mechanism 1420.

[0083] Before the battery cell is placed into the bracket, the bracket installation module 1400 first clamps the lower bracket from the lower bracket assembly line 1412 and installs it on the fixture return assembly line 1900. After the battery cell is placed into the bracket, the fixture return assembly line 1900 moves the battery cell into the bracket to the upper bracket installation station 1970. At this time, the bracket installation module 1400 clamps the upper bracket from the upper bracket assembly line 1411 and covers the battery cell with the upper bracket. The fixture return assembly line 1900 then continues to transport the battery cell forward to the laser engraving and screw fastening station 1990. The laser engraving mechanism 1700 performs laser engraving on the battery cell, and the screw fastening mechanism 1800 fastens the upper and lower brackets with screws. After the screw fastening is completed, the product enters the automatic nickel sheet loading equipment for material transfer.

[0084] Reference Figure 1 , Figure 18 and Figure 19In a non-limiting embodiment of the present invention, the automatic nickel sheet loading equipment 2000 includes a second chassis 2100. The top of the second chassis 2100 is a second workbench 2110. On the second workbench 2110, adjacent to the multi-functional integrated machine 1000, a nickel sheet loading and unloading robot 2200 and a material transfer mechanism 2400 of the spot welding fixture lifting mechanism 2300 are arranged sequentially from front to back. A spot welding fixture production line 2700 is arranged in the middle of the end of the second workbench 2110 away from the multi-functional integrated machine 1000. A first nickel sheet loading mechanism 2500 and a second nickel sheet loading mechanism 2600 are respectively arranged on the front and rear sides of the spot welding fixture production line 2700. A spot welding fixture lower return production line 2800 corresponding to the spot welding fixture production line 2700 is arranged in the housing.

[0085] Reference Figure 1 , Figure 18 and Figure 19 The working process and principle of the automatic nickel sheet loading equipment 2000:

[0086] First, the spot welding fixture lifting mechanism 2300 in the automatic nickel sheet loading equipment 2000 transports the return fixture on the return line 2800 to the top to wait. The nickel sheet loading and unloading robot 2200 starts and transfers the battery pack from the output end of the multi-functional integrated machine 1000 to the spot welding fixture on the spot welding fixture production line 2700. The spot welding fixture production line 2700 conveys the spot welding fixture containing the battery pack upwards. At the same time, the first nickel sheet loading mechanism 2500 and the second nickel sheet loading mechanism 2600 on the front and rear sides of the spot welding fixture production line 2700 start to automatically install the nickel sheets on the left and right hinges of the spot welding fixture. Then, the spot welding fixture production line 2700 continues to transport the spot welding fixture forward to the next piece of equipment - the spot welding equipment 3000.

[0087] Reference Figure 1 , Figure 20 and Figure 21In a non-limiting embodiment of the present invention, the spot welding equipment 3000 includes a third chassis 3100, the top of which is a third workbench 3110. The third workbench 3110 is equipped with a spot welding fixture upper assembly line 3200. The spot welding fixture upper assembly line 3200 is correspondingly arranged with the spot welding fixture assembly line 2700 in the automatic nickel sheet loading equipment 2000, so that the spot welding fixture containing the battery pack is conveyed forward from the spot welding fixture assembly line 2700 to the spot welding fixture upper assembly line 3200. The spot welding fixture upper assembly line 3200, from one end adjacent to the automatic nickel sheet loading equipment 2000 to the other end, is sequentially equipped with a first spot welding station 3210, a second spot welding station 3220, and a third spot welding station 3210. The first spot welding station 3210 has a first spot welding fixture flipping mechanism 3300 on its front side, the third spot welding station 3230 has a second spot welding fixture flipping mechanism 3400 on its front side, and the fourth spot welding station 3240 has a third spot welding fixture flipping mechanism 3500 on its front side. The spot welding fixture upper production line 3200 has a spot welding module 3600 and a spot welding unloading robot 3700 on its rear side. The output end of the spot welding fixture upper production line 3200 has a fixture return lifting mechanism 3800. The third housing 3100 has a spot welding fixture lower production line 3900 that cooperates with the spot welding fixture upper production line 3200.

[0088] Reference Figure 1 , Figure 20 and Figure 21 The working process and principle of the spot welding equipment 3000:

[0089] When the battery pack is conveyed forward from the spot welding fixture assembly line 2700 on the automatic nickel sheet loading equipment 2000 to the first spot welding station 3210 on the upper assembly line 3200 of the spot welding fixture on the spot welding equipment 3000, the first spot welding fixture flipping mechanism 3300 located outside the first spot welding station 3210 is activated to flip the fixture 90 degrees counterclockwise. The fixture continues to move forward on the upper assembly line 3200 to the second spot welding station 3220. At this time, the spot welding module 3600 is activated to perform nickel sheet spot welding on the battery pack. After the nickel sheet spot welding is completed, the fixture drives the battery pack to continue moving forward along the upper assembly line 3200 to the third spot welding station 3230. At this time, the second spot welding fixture flipping mechanism 3400 located outside the third spot welding station 3230 is activated to rotate the fixture and battery pack clockwise. After a 180-degree rotation, the spot welding module 3600 restarts to spot weld nickel sheets on the other side of the battery pack. After spot welding, the battery pack continues to move forward along the upper assembly line 3200 of the spot welding fixture to the fourth spot welding station 3240. At this time, the third spot welding fixture flipping mechanism 3500, located outside the fourth spot welding station 3240, rotates the spot welding fixture 90 degrees counterclockwise and opens the hinge of the spot welding fixture at this fourth spot welding station 3240. The spot welding fixture, along with the battery pack, continues to move forward along the upper assembly line 3200 of the spot welding fixture to the fifth spot welding station 3250. After the spot welding unloading robot 3700 unloads the material, the fixture return lifting mechanism 3800 transfers the spot welding fixture located on the upper assembly line 3200 to the lower assembly line 3900 of the spot welding fixture for return.

[0090] In the description of this invention, it should be understood that terms such as "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0091] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0092] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0093] The above embodiments are merely specific examples of the present invention, and their descriptions are quite specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these obvious substitutions all fall within the protection scope of the present invention.

Claims

1. A lithium battery front section automatic production line, characterized by: The application relates to a production line for lithium batteries, which comprises, from one side to the other, a multifunctional all-in-one machine, an automatic nickel sheet loading device and a spot welding device, wherein the multifunctional all-in-one machine is used for transporting, feeding, cutting barley paper, scanning, testing and installing the graded battery cells into the lower support; the automatic nickel sheet loading device is arranged adjacent to the multifunctional all-in-one machine and is used for loading the battery cells installed into the support by the multifunctional all-in-one machine into the automatic nickel sheet loading device to load the nickel sheets; and the spot welding device is arranged adjacent to the automatic nickel sheet loading device and is used for spot welding the nickel sheets of the battery cells loaded by the automatic nickel sheet loading device, thereby completing the production of the front section of the lithium battery. The multifunctional all-in-one machine comprises a first machine box, the top of the first machine box is a first workbench, the first workbench is provided with a whole-box battery cell feeding assembly line, the whole-box battery cell feeding assembly line is located at the front of the first workbench, one end of the whole-box battery cell feeding assembly line is provided with a single battery cell transmission assembly line which is vertically distributed with the whole-box battery cell feeding assembly line, the single battery cell transmission assembly line is sequentially provided with a battery cell feeding mechanism, a cutting barley paper mechanism, a battery cell scanning mechanism and a testing mechanism from one end of the whole-box battery cell feeding assembly line, the rear of the whole-box battery cell feeding assembly line is sequentially provided with a support installation module and a battery cell storage channel, the top of the battery cell storage channel is provided with a battery cell taking and placing mechanism, the battery cell taking and placing mechanism and the battery cell storage channel are provided with a battery cell installation mechanism, the front of the battery cell installation mechanism is provided with the support installation module, the lower portion of the battery cell installation mechanism is provided with a jig backflow assembly line, the outer side of the battery cell installation mechanism is provided with a laser carving mechanism for laser carving the product and a screw locking mechanism for locking the screws of the support. The automatic nickel sheet loading device comprises a second machine box, the top of the second machine box is a second workbench, one end of the second workbench adjacent to the multifunctional all-in-one machine is sequentially provided with a nickel sheet loading unloading mechanical arm and a material transfer mechanism hand of a spot welding jig lifting mechanism from front to back, the middle of the end of the second workbench away from the multifunctional all-in-one machine is provided with a spot welding jig assembly line, the front and rear sides of the spot welding jig assembly line are respectively provided with a first nickel sheet loading mechanism and a second nickel sheet loading mechanism, and the second machine box is provided with a spot welding jig lower backflow assembly line corresponding to the spot welding jig assembly line. The spot welding device comprises a third machine box, the top of the third machine box is a third workbench, the third workbench is provided with a spot welding jig upper assembly line, the spot welding jig upper assembly line is sequentially provided with a first spot welding station, a second spot welding station, a third spot welding station, a fourth spot welding station and a fifth spot welding station from one end adjacent to the automatic nickel sheet loading device to the other end, the front side of the first spot welding station is provided with a first spot welding jig overturning mechanism, the front side of the third spot welding station is provided with a second spot welding jig overturning mechanism, the front side of the fourth spot welding station is provided with a third spot welding jig overturning mechanism, the rear side of the spot welding jig upper assembly line is provided with a spot welding module and a spot welding unloading mechanical arm, the output end of the spot welding jig upper assembly line is provided with a jig backflow lifting mechanism, and the machine box is provided with a spot welding jig lower assembly line matched with the spot welding jig upper assembly line.

2. The lithium battery front-stage automated production line according to claim 1, wherein The electric core feeding mechanism comprises an electric core feeding mechanism frame, a lower layer mounting plate and an upper layer moving plate are arranged on the electric core feeding mechanism frame, the lower layer mounting plate is located above the whole box electric core feeding flow line, a single electric core transmission flow line is mounted on the lower layer mounting plate, a material arrival position sensor is arranged on the outer side of the single electric core transmission flow line on the lower layer mounting plate, the upper layer moving plate is slidably connected with two guide columns at the top through a sliding seat, the upper layer moving plate is connected with an electric core horizontal movement air cylinder, an electric core material taking up-down air cylinder is mounted on the upper layer moving plate, and an output end of the electric core material taking up-down air cylinder is connected with an electric core material taking execution end; a feeding variable distance air cylinder for adjusting the distance between adjacent material taking execution ends is arranged at the top of the electric core material taking execution end; and a material pressing air cylinder is arranged on the lower layer mounting plate.

3. The lithium battery front section automatic production line according to claim 2, characterized by, The electric core feeding and discharging module comprises a feeding and discharging module frame, a discharging mechanism on a storage channel mechanism for feeding the electric core in the previous process is arranged on one side of the feeding and discharging module frame, and a material taking mechanism for moving the electric core on the storage channel mechanism on the storage channel mechanism for storing one battery pack to an entering support mechanism is arranged on the other side of the feeding and discharging module frame, the discharging mechanism comprises a discharging moving module mounted on the feeding and discharging module frame and a discharging execution mechanism mounted on the discharging moving module, the material taking mechanism comprises a material taking moving module mounted on the feeding and discharging module frame and a material taking execution mechanism mounted on the material taking moving module, the discharging execution mechanism and the material taking execution mechanism are staggered and arranged at both ends of the feeding and discharging module frame and respectively move along the discharging moving module and the material taking moving module, two parallel guide rails are arranged on both sides of the feeding and discharging module frame, the two guide rails on the same side are respectively located above and below the transmission belt, and an execution end mounting plate is slidably connected with the guide rails through a sliding block.

4. The lithium battery front section automatic production line according to claim 3, characterized by, The feeding execution mechanism comprises a feeding mounting frame, the feeding mounting frame comprises a feeding upper mounting plate and a feeding lower mounting plate, the feeding upper mounting plate and the feeding lower mounting plate are connected through a feeding vertical column, a feeding distance adjusting part is sleeved on the feeding vertical column between the feeding upper mounting plate and the feeding lower mounting plate, one end of the feeding upper mounting plate is connected with a feeding vertical plate, and the feeding vertical plate is mounted on an execution end mounting plate on the side of the feeding moving module.

5. The lithium battery front-end automated production line according to claim 4, wherein The supporting frame installation module comprises a fixed frame, the fixed frame is provided with an X-axis moving module, the X-axis moving module is provided with a Y-axis moving module moving along the X-axis, the Y-axis moving module is provided with a Z-axis moving module moving along the Y-axis, and the Z-axis moving module is provided with an upper supporting frame clamping part and a lower supporting frame clamping part moving up and down along the Z-axis.

6. The lithium battery front-end automated production line according to claim 5, wherein The first workbench is further provided with a supporting frame assembly line, the supporting frame assembly line is located outside the supporting frame installation module, and comprises an upper supporting frame assembly line and a lower supporting frame assembly line.

7. The lithium battery front-end automated production line according to claim 6, wherein The jig backflow assembly line comprises an upper layer line body for conveying jigs to each processing station and a lower layer line body for jig backflow, the output end bottom of the upper layer line body is provided with a descending air cylinder for moving the jig to the lower layer line body, the backflow end bottom of the lower layer line body is provided with a rising air cylinder for moving the jig to the upper layer line body, the backflow end outside of the lower layer line body is provided with a push air cylinder for pushing the jig to the upper layer line body, and the upper layer line body is provided with a lower supporting frame mounting station, an upper supporting frame mounting station and a laser carving and screw locking station.

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