A shared power bank assembly line

Abstract

This invention relates to the field of power bank assembly technology and discloses a shared power bank assembly production line, comprising a bottom shell applicator, a battery cell shaping and cutting device, a connecting piece shaping and flattening device, a semi-finished product testing device, a top cover applicator, a cover fastening device, and a performance testing device arranged sequentially. A bottom shell feeding device is provided on one side of the bottom shell applicator, and a battery cell feeding device is provided between the other side of the bottom shell applicator and the battery cell shaping and cutting device. A top cover feeding device is provided between the connecting piece shaping and flattening device and the top cover applicator, for attaching the battery cell to the bottom shell after applicating the bottom shell applicator, and then mounting the top cover.

Description

Technical Field

[0001] This invention relates to the field of power bank assembly technology, and more particularly to a shared power bank assembly production line. Background Technology

[0002] In recent years, with the widespread adoption of smartphones and other mobile devices and the increased frequency of travel, the shared power bank market has experienced rapid growth. Market research data shows that the size of my country's shared power bank market has continued to climb over the past few years. This explosive growth in demand has led to a significant increase in production orders. To meet market demand, shared power bank manufacturers have had to expand their production scale. Against this backdrop, the demand for power bank assembly has surged.

[0003] As a frequently used electronic product, shared power banks have a huge market demand, placing extremely high demands on production efficiency and product consistency. A complete shared power bank is typically assembled from components such as a plastic shell (including the bottom shell and top cover), lithium-ion battery cells, a charge / discharge management circuit board (PCB), connecting pieces, and necessary insulation and cushioning materials (such as adhesive tape). The assembly requirements for power banks are high. In addition, the complex structure of shared power banks makes it difficult to achieve efficient assembly production. Currently, the assembly production mode of shared power banks still largely relies on traditional manual or semi-automated operations, resulting in low assembly efficiency. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a shared power bank assembly line to achieve automated assembly and improve assembly efficiency.

[0005] The technical solution of this invention is: a shared power bank assembly line, comprising:

[0006] The bottom shell attaching device is used to attach red cotton to the bottom shell of the power bank;

[0007] A battery cell shaping and cutting device is used to shape and cut the end tabs of battery cells;

[0008] The connecting piece shaping and flattening device is used to shape the connecting pieces on the bottom shell of the power bank and then laser weld them to the battery cell;

[0009] A semi-finished product testing device is used to test the electrical conductivity of the bottom shell of a power bank containing a battery cell.

[0010] The top cover mounting device is used to attach graphene sheets to the top cover of the power bank;

[0011] The cover fastening device is used to press and fasten the top cover of the power bank onto the bottom shell for assembly.

[0012] A performance testing device is used to test the performance of a power bank after it is powered on.

[0013] The bottom shell applicator, the battery cell shaping and cutting device, the connecting piece shaping and flattening device, the semi-finished product testing device, the top cover applicator, the cover fastening device, and the performance testing device are arranged in sequence. A bottom shell feeding device is provided on one side of the bottom shell applicator, and a battery cell feeding device is provided between the other side of the bottom shell applicator and the battery cell shaping and cutting device. A top cover feeding device is provided between the connecting piece shaping and flattening device and the top cover applicator.

[0014] As can be seen from the above scheme, the bottom shell red cotton attaching device is used to attach protective red cotton to the bottom shell of the power bank; the cell shaping and cutting device is used to shape and flatten the tabs of the incoming cell and cut them to a set size; the connecting piece shaping and flattening device is used to fold back, shape and flatten the connecting piece on the power bank motherboard and weld it to the cell to obtain the cell motherboard assembly; the semi-finished product testing device is used to test the cell motherboard assembly with power; the top cover attaching device is used to attach graphene sheets to the top cover of the shared power bank; the cover fastening device is used to press and fasten the top cover to the bottom shell, thereby realizing the assembly of the shared power bank's outer shell; and the performance testing device is used to test the performance of the finished shared power bank with power.

[0015] The bottom shell cotton-attaching device includes an alternating conveying module and a cotton transplanting mechanism disposed above the alternating conveying module. The cotton transplanting mechanism includes a cotton transplanting robot, a rotary cylinder connected to the output end of the cotton transplanting robot, a connecting plate connected to the output end of the rotary cylinder, and a cotton adsorption block disposed at the bottom of the connecting plate. The cotton adsorption block is provided with adsorption holes. The connecting plate is provided with pressing blocks on both sides of the cotton adsorption block through an elastic structure. The elastic structure includes a guide post and a first spring sleeved on the guide post. The guide post passes through the connecting plate and connects to the pressing blocks. The two ends of the first spring abut against the connecting plate and the pressing blocks respectively. The bottom surface of the pressing blocks is flush with the bottom surface of the cotton adsorption block. Therefore, the pressing blocks are used to elastically press and tighten the guide wires on both sides of the bottom shell of the power bank, and the cotton adsorption blocks are used to adsorb the cotton and then feed it into the bottom shell.

[0016] The alternating conveying module includes a transmission slide rail, a conveying slide plate seat slidably disposed on the transmission slide rail, a lifting cylinder, and a product limiting seat disposed on the conveying slide plate seat. The product limiting seat has a placement limiting groove, and a limiting clamping cylinder is provided on the side of the placement limiting groove. At least two sets of conveying slide plates are provided. The lifting cylinder is disposed at the bottom of the conveying slide plate seat, and its output end is connected to the product limiting seat. Therefore, the conveying slide plate is used to drive the product limiting seat to move back and forth on the transmission slide rail, and the lifting cylinder is used to lift the product limiting seat, thereby realizing the alternating use of the two sets of product limiting seats.

[0017] The battery cell shaping and cutting device includes a battery cell loading robot, an internal resistance testing mechanism, an electrode cutting mechanism, a vision inspection mechanism, and a battery cell unloading mechanism arranged sequentially along the rotation direction of the first turntable. The first turntable is equipped with several product limiting seats for cutting. Electrode flattening mechanisms are provided on both sides of the internal resistance testing mechanism. Each electrode flattening mechanism includes a flattening feed linear module, an upper flattening cylinder and a lower flattening cylinder symmetrically arranged on the output end of the flattening feed linear module, and a first electrode pressing block connected to the output end of the upper flattening cylinder. The internal resistance testing mechanism includes a test frame, a test cylinder mounted on the test frame, a test head connected to the output end of the test cylinder, a support cylinder, and a support block mounted on the output end of the support cylinder. The support block is correspondingly positioned below the test head. The tab cutting mechanism includes a push cylinder, a cutting base plate connected to the output end of the push cylinder, a cutting drive cylinder mounted on the cutting base plate, and a cutter connected to the cutting drive cylinder. Therefore, the cutting drive cylinder is used to drive the cutter to cut the tabs at the end of the battery cell.

[0018] The connecting piece shaping and flattening device includes a second turntable that is rotatably arranged, a bottom shell feeding robot, a battery cell transferring robot, a connecting piece shaping mechanism, a connecting piece folding and pressing mechanism, a laser welding mechanism, and a semi-finished product unloading mechanism arranged sequentially along the rotation direction of the second turntable. The second turntable is provided with a plurality of limiting clamping fixtures. The connecting piece shaping mechanism includes a shaping mounting base, a first pressing cylinder arranged on the shaping mounting base, a second pressing cylinder correspondingly arranged below the first pressing cylinder, a first pressing block connected to the output end of the first pressing cylinder, and a second pressing block connected to the output end of the second pressing cylinder. The first pressing block is correspondingly arranged above the second pressing block and located in front of the second pressing block. The inner side of the second pressing block is arranged with a right angle surface. Therefore, the bottom shell loading robot and the cell transfer robot respectively realize the loading of the bottom shell and the cell, the connecting piece shaping mechanism is used for shaping the connecting piece, the connecting piece folding and pressing mechanism is used to flatten the connecting piece by pushing the vertical surface of the connecting piece inward, and the laser welding mechanism is used to realize the welding of the connecting piece and the cell.

[0019] The connecting piece folding and pressing mechanism includes a fixed frame, a linear feed module mounted on the fixed frame, a linear lifting module connected to the output end of the linear feed module, a connecting seat connected to the output end of the linear lifting module, and a folding pressing block slidably mounted on the connecting seat. The folding pressing block is elastically connected to the connecting seat via a second spring member.

[0020] The laser welding mechanism includes a transverse module, a mounting bracket disposed on the output end of the transverse module, a laser welding head connected to the mounting bracket, and a light source. The light source is disposed below the laser welding head. The second turntable is provided with a pressure limiting component on the opposite side of the laser welding mechanism. The pressure limiting component includes a fixed connecting frame, a pressure cylinder disposed on the fixed connecting frame, and a pressure limiting block connected to the output end of the pressure cylinder. The pressure limiting block is provided with a through groove.

[0021] Both the semi-finished product testing device and the performance testing device include a moving module, a support base mounted on the output end of the moving module, a connecting frame mounted above the support base, a first lifting cylinder mounted on the connecting frame, a plug-in cylinder connected to the output end of the first lifting cylinder, an electrical testing cylinder mounted on the output end of the second lifting cylinder, a plug-in head connected to the output end of the plug-in cylinder, and several probes connected to the output end of the electrical testing cylinder. The plug-in cylinder and the electrical testing cylinder are respectively mounted on both sides of the connecting frame. The plug-in cylinder is horizontally mounted on the connecting frame. The support base is provided with a limit groove. An electrical testing plate is mounted on the rear side of the support base behind the limit groove. A slot communicating with the limit groove is provided on the side of the support base. The slot corresponds to the plug-in head. The probes correspond to the contacts on the electrical testing plate. A barcode scanner is provided on the side of the plug-in cylinder. The barcode scanner is aligned with the limit groove. Therefore, the plug-in cylinder and the electrical testing cylinder respectively perform power-on tests on the charging interface and discharging end of the shared power bank through the plug-in head and the probe.

[0022] The cap fastening device includes a placement plate slidably disposed on the jig conveyor line, a cap-picking and feeding mechanism sequentially disposed above the jig conveyor line, and a cap fastening mechanism. The cap-picking and feeding mechanism includes a cap-picking and feeding frame, a cap-picking cylinder disposed on the cap-picking and feeding frame, and a cap-picking suction plate disposed on the output end of the cap-picking cylinder. Guide positioning posts are disposed on both sides of the cap-picking suction plate. The placement plate is provided with a feeding groove and guide contacts adapted to the guide positioning posts. The cap fastening mechanism includes a fastening connecting frame, two sets of several cap-fastening cylinders disposed in parallel on the fastening connecting frame, and a pressure plate disposed on the output end of the cap-fastening cylinder. Therefore, the cap-picking and feeding mechanism is used to place the cap onto the bottom shell after picking it up, and the cap fastening mechanism is used to press down on the front and rear of the shared power bank through the two sets of parallel cap-fastening cylinders, ensuring fastening by pressing flat.

[0023] Both the cell shaping and cutting device and the connecting piece shaping and flattening device are equipped with several limiting fixture seats. Two product limiting grooves are arranged side by side on the limiting fixture seats. Side pressure blocks are arranged on both sides of the limiting fixture seats. A clamping seat is connected to the side pressure block below the limiting fixture seat. A rotating arm block is rotatably connected inside the clamping seat. The rotating arm block is bent. The top of the rotating arm block is connected to the side pressure block. A guide post is slidably fitted on the clamping seat. One end of the guide post is connected to the side pressure block, and the other end is fitted with a return spring. The return spring is located between the clamping seat and the head of the guide post. A lifting and clamping cylinder is correspondingly arranged below the limiting fixture seat. A top pressure push plate is arranged on the output end of the lifting and clamping cylinder. The top pressure push plate is correspondingly arranged below the two sets of rotating arm blocks. Attached Figure Description

[0024] Figure 1 This is a top view of the present invention;

[0025] Figure 2 This is a schematic diagram of the device for attaching red cotton to the bottom shell;

[0026] Figure 3 This is a schematic diagram of the structure of the kapok transplanting mechanism;

[0027] Figure 4 This is a schematic diagram of the alternating transmission module;

[0028] Figure 5 This is a schematic diagram of the battery cell shaping and cutting device;

[0029] Figure 6 This is a schematic diagram of the electrode flattening mechanism;

[0030] Figure 7 This is a schematic diagram of the internal resistance testing mechanism;

[0031] Figure 8 This is a schematic diagram of the electrode cutting mechanism;

[0032] Figure 9 This is a schematic diagram of the connecting piece shaping and flattening device;

[0033] Figure 10 This is a schematic diagram of the connecting piece shaping mechanism;

[0034] Figure 11 This is a schematic diagram of the connecting piece folding and pressing mechanism;

[0035] Figure 12 This is a schematic diagram of the laser welding mechanism;

[0036] Figure 13 This is a schematic diagram of the performance testing device.

[0037] Figure 14 This is a partial structural diagram of the performance testing device;

[0038] Figure 15 This is another partial structural diagram of the performance testing device;

[0039] Figure 16 This is a structural schematic diagram of the support base;

[0040] Figure 17 This is a schematic diagram of the top cover patch device;

[0041] Figure 18 This is a schematic diagram of the cap fastening device;

[0042] Figure 19This is a schematic diagram of the cap fastening device;

[0043] Figure 20 This is a schematic diagram of the structure of the limiting fixture seat;

[0044] Figure 21 This is an exploded diagram of a shared power bank product;

[0045] Figure 22 yes Figure 21 Enlarged view of point A in the middle;

[0046] Figure 23 This is a schematic diagram of the bottom shell feeding device;

[0047] Figure 24 This is a schematic diagram of the laser marking device. Detailed Implementation

[0048] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0049] like Figures 1 to 24 As shown, the present invention is a shared power bank assembly line, including a bottom shell red cotton attaching device 2, used to attach red cotton to the bottom shell of the power bank.

[0050] The battery cell shaping and cutting device 3 is used to shape and cut the end tabs of the battery cell;

[0051] The connecting piece shaping and flattening device 4 is used to shape the connecting piece on the bottom shell of the power bank and then laser weld it to the battery cell.

[0052] The semi-finished product testing device 6 is used to test the power-on status of the bottom shell of the power bank with battery cells;

[0053] The top cover mounting device 7 is used to attach graphene sheets to the top cover of the power bank;

[0054] The cover fastening device 8 is used to press and fasten the top cover of the power bank onto the bottom shell of the power bank for assembly.

[0055] Performance testing device 9 is used to test the performance of the power bank after it is powered on.

[0056] The bottom shell applicator 2, the battery cell shaping and cutting device 3, the connecting piece shaping and flattening device 4, the semi-finished product testing device 6, the top cover applicator 7, the cover fastening device 8, and the performance testing device 9 are arranged in sequence. A bottom shell feeding device 11 is provided on one side of the bottom shell applicator 2, and a battery cell feeding device 12 is provided between the other side of the bottom shell applicator 2 and the battery cell shaping and cutting device 3. A top cover feeding device 13 is provided between the connecting piece shaping and flattening device 4 and the top cover applicator 7. In this embodiment, the shared power bank product includes a top cover 210, a bottom shell 220, a battery cell 230 placed inside the bottom shell 220, and a connecting piece 240. The bottom shell feeding device 11, the battery cell feeding device 12, and the top cover feeding device 13 all adopt six-axis robots, which are used to feed the bottom shell 220, the battery cell 230, and the top cover 210, respectively. The connecting piece 240 is made of nickel sheet and is set as a right-angle bent piece. The connecting piece shaping mechanism 43 flattens a pair of right-angled surfaces of the connecting piece 240 and then folds it back and flattens it through the connecting piece folding and pressing mechanism 44, which helps the subsequent laser welding of the connecting piece 240 and the battery cell.

[0057] The bottom shell cotton-planting device 2 includes an alternating conveying module and a cotton transplanting mechanism disposed above the alternating conveying module. The cotton transplanting mechanism includes a cotton transplanting robot 21, a rotary cylinder 22 connected to the output end of the cotton transplanting robot 21, a connecting plate 27 connected to the output end of the rotary cylinder 22, and a cotton adsorption block 23 disposed at the bottom of the connecting plate 27. The cotton adsorption block 23 is provided with adsorption holes. The connecting plate 27 is provided with pressing blocks 25 on both sides of the cotton adsorption block 23 through an elastic structure. The elastic structure includes a guide post 26 and a first spring member 24 sleeved on the guide post 26. The guide post 26 passes through the connecting plate 27 and connects to the pressing block 25. The two ends of the first spring member 24 abut against the connecting plate 27 and the pressing block 25 respectively. The bottom surface of the pressing block 25 is flush with the bottom surface of the cotton adsorption block 23. In this embodiment, a limiting strip is attached to the inner wall of the bottom shell 220 along its length. The bottom shell cotton-attaching device 2 takes the cotton and attaches it to the bottom shell after the cotton transplanting robot 21 takes it. The pressing block 25 elastically presses the limiting strips on both sides of the cotton.

[0058] The alternating conveying module includes a transmission slide rail 20, a conveying slide plate seat 201 slidably disposed on the transmission slide rail 20, a lifting cylinder 29, and a product limiting seat 28 disposed on the conveying slide plate seat 201. The product limiting seat 28 is provided with a placement limiting groove 281, and a limiting clamping cylinder component 282 is provided on the side of the placement limiting groove 281. The conveying slide plate seat 201 is provided with at least two sets of lifting cylinders. The lifting cylinder 29 is disposed at the bottom of the conveying slide plate seat 201 and its output end is connected to the product limiting seat 28.

[0059] The battery cell shaping and cutting device 3 includes a battery cell loading robot 32, an internal resistance testing mechanism 33, an electrode cutting mechanism 34, a vision inspection mechanism 35, and a battery cell unloading mechanism 37 arranged sequentially along the rotation direction of the first turntable 31. The first turntable 31 is provided with several cutting product limiting seats 30. Electrode flattening mechanisms 36 are provided on both sides of the internal resistance testing mechanism 33. Each electrode flattening mechanism 36 includes a flattening feed linear module 361, an upper flattening cylinder 362 and a lower flattening cylinder 363 symmetrically arranged on the output end of the flattening feed linear module 361, a first electrode pressing block 364 connected to the output end of the upper flattening cylinder 362, and a first electrode pressing block 364 connected to the output end of the lower flattening cylinder 363. The second tab pressure block 365 on the end, the internal resistance testing mechanism 33 includes a test frame 331, a test cylinder 332 disposed on the test frame 331, a test head 333 connected to the output end of the test cylinder 332, a support cylinder 334, and a support block 335 disposed on the output end of the support cylinder 334. The support block 335 is correspondingly disposed below the test head 333. The tab cutting mechanism 34 includes a push cylinder 341, a cutting seat plate 342 connected to the output end of the push cylinder 341, a cutting drive cylinder 343 disposed on the cutting seat plate 342, and a cutter 344 connected to the cutting drive cylinder 343. The cutter 344 is vertically downward. In this embodiment, the electrode cutting mechanism 34 further includes a first cylinder 345, a mounting frame 346, and a recycling cylinder 347. The first cylinder 345 is fixed on the cutting base plate 342, and the output end of the first cylinder 345 extends out of the cutting base plate 342 and is connected to the mounting base plate 348. The cutting drive cylinder 343 is connected to the mounting base plate 348. The mounting frame 346 is connected to the mounting base plate 348 and is located below the cutter 344. The upper flattening cylinder 362 and the lower flattening cylinder 363 respectively drive the first electrode pressing block 364 and the second electrode pressing block 365 to clamp the electrode and flatten the upper and lower surfaces of the electrode. The top of the mounting frame 346 is provided with an opening 349, and the bottom of the mounting frame 346 is connected to the recycling cylinder 347.

[0060] The connecting piece shaping and flattening device 4 includes a second turntable 41 that is rotatably arranged, a bottom shell feeding robot 421, a battery cell transferring robot 422, a connecting piece shaping mechanism 43, a connecting piece folding and pressing mechanism 44, a laser welding mechanism 45, and a semi-finished product unloading mechanism 46 arranged sequentially along the rotation direction of the second turntable 41. The second turntable 41 is provided with a plurality of limiting clamping fixtures 40. The connecting piece shaping mechanism 43 includes a shaping mounting base 431, a first pressing cylinder 432 arranged on the shaping mounting base 431, a second pressing cylinder 433 correspondingly arranged below the first pressing cylinder 432, a first pressing block 434 connected to the output end of the first pressing cylinder 432, and a second pressing block 435 connected to the output end of the second pressing cylinder 433. The first pressing block 434 is correspondingly arranged above the second pressing block 435 and located in front of the second pressing block 435. The inner side of the second pressing block 435 is arranged with a right angle.

[0061] The connecting piece folding and pressing mechanism 44 includes a fixed frame 441, a linear feed module 442 mounted on the fixed frame 441, a linear lifting module 443 connected to the output end of the linear feed module 442, a connecting seat 444 connected to the output end of the linear lifting module 443, and a folding pressing block 445 slidably mounted on the connecting seat 444. The folding pressing block 445 is elastically connected to the connecting seat 444 via a second spring member 447. In this embodiment, the connecting piece is made of nickel sheet.

[0062] The laser welding mechanism 45 includes a transverse module 451, a mounting bracket 452 disposed on the output end of the transverse module 451, a laser welding head 453 connected to the mounting bracket 452, and a light source 454. The light source 454 is disposed below the laser welding head 453. The second turntable 41 is provided with a pressing and limiting component on the opposite side of the laser welding mechanism 45. The pressing and limiting component includes a fixed connecting frame, a pressing cylinder 456 disposed on the fixed connecting frame, and a pressing and limiting block 457 connected to the output end of the pressing cylinder 456. The pressing and limiting block 457 is provided with a through groove 458 adapted to the connecting piece. It also includes an end limiting cylinder 459 and an end limiting block 4592 connected to the output end of the end limiting cylinder 459, which are used to press the end of the product during laser welding.

[0063] Both the semi-finished product testing device 6 and the performance testing device 9 include a moving module 91, a support base 92 mounted on the output end of the moving module 91, a connecting frame 93 mounted above the support base 92, a first lifting cylinder 931 mounted on the connecting frame 93, a plugging / unplugging cylinder 94 connected to the output end of the first lifting cylinder 931, an electrical testing cylinder 95 mounted on the output end of the second lifting cylinder 932, a plugging / unplugging head 96 connected to the output end of the plugging / unplugging cylinder 94, and several probes 97 connected to the output end of the electrical testing cylinder 95. The plugging / unplugging cylinder 94 and the electrical testing cylinder 95... 5 are respectively arranged on both sides of the connecting frame 93. The insertion and removal cylinder 94 is horizontally arranged on the connecting frame 93. The bearing seat 92 is provided with a limit groove 921. The bearing seat 92 is provided with an electrical testing plate 98 on the rear side of the limit groove 921. The side of the bearing seat 92 is provided with a slot 922 communicating with the limit groove 921. The slot 922 is provided corresponding to the insertion and removal head 96. The probe 97 corresponds to the contact 981 on the electrical testing plate 98. The side of the insertion and removal cylinder 94 is provided with a barcode scanner 99, which is aligned with the limit groove 921. The present invention also includes a locking screw device disposed between the bottom shell feeding device 11 and the bottom shell attaching red cotton device 2, for locking the motherboard to the bottom shell with screws. The battery cell shaping and cutting device 3 is provided with a battery cell feeding device 12 at the material receiving end, and the battery cell feeding device 12 is disposed between the battery cell shaping and cutting device 3 and the bottom shell attaching red cotton device 2.

[0064] In this embodiment, an adhesive applicator 5 is provided between the semi-finished product testing device 6 and the connecting piece shaping and flattening device 4. A laser marking device 14 is provided between the cover fastening device 8 and the top cover patching device 7. The laser marking device 14 is used to print a QR code on the surface of the top cover to achieve a one-to-one correspondence with the battery cell, realizing one code for one battery cell, which facilitates the assembly and pressing of the corresponding top cover and bottom shell when the cover fastening device 8 is pressed.

[0065] The cap fastening device 8 includes a placement plate 80 slidably disposed on the jig conveyor line, a cap feeding mechanism and a cap fastening mechanism sequentially disposed above the jig conveyor line. The cap feeding mechanism includes a cap feeding frame 81, a cap feeding cylinder 82 disposed on the cap feeding frame 81, and a cap feeding suction plate 83 disposed on the output end of the cap feeding cylinder 82. Guide positioning posts 84 are disposed on both sides of the cap feeding suction plate 83. The placement plate 80 is provided with a feeding groove 801 and guide contacts 802 adapted to the guide positioning posts 84. The cap fastening mechanism includes a fastening connecting frame 85, two sets of cap fastening cylinders 86 disposed in parallel on the fastening connecting frame 85, and a pressure plate 87 disposed on the output end of the cap fastening cylinder 86. In this embodiment, the placement plate 80 is provided with two rows of slots for placing the top cover and bottom shell products, as well as a limiting slot for the charging cable end. Each limiting slot corresponds to two sets of cover-pressing cylinders 86, which drive the pressing plate 87 to press the front half and the rear half of the power bank respectively. During the first press, the two sets of cover-pressing cylinders 86 drive the pressing plate 87 to press down one after the other, first pressing the front half and then pressing down to press the rear half. During the second press, the two sets of cover-pressing cylinders 86 simultaneously drive the pressing plate 87 to press down to ensure flatness.

[0066] The top cover patching device 7 includes a product feeding mechanism 71, a graphene sheet feeding and attaching mechanism 72, a clamping and flipping mechanism 73, and a product unloading mechanism 74 arranged sequentially along the third turntable. These mechanisms respectively realize the feeding, graphene sheet attachment, product flipping, and unloading actions, and are used to attach graphene sheets to the inner wall of the top cover of the shared power bank to facilitate heat dissipation of the power bank.

[0067] Both the battery cell shaping and cutting device 3 and the connecting piece shaping and flattening device 4 are provided with a plurality of limiting fixture seats 100. Two product limiting grooves 101 are arranged side-by-side on each limiting fixture seat 100. Side pressing blocks 110 are provided on both sides of the limiting fixture seat 100. A pressing seat 120 is connected to each side pressing block 110 below the limiting fixture seat 100. A rotating arm block 121 is rotatably connected inside the pressing seat 120. The rotating arm block 121 is bent, and its top is connected to the side pressing block 120. Block 110 is connected, and a guide post 122 is slidably fitted on the clamping seat 120. One end of the guide post 122 is connected to the side pressure block 110, and the other end is fitted with a return spring 123. The return spring 123 is located between the head of the clamping seat 120 and the head of the guide post 122. A lifting and clamping cylinder 130 is correspondingly provided below the limiting fixture seat 100. A top pressing push plate 131 is provided on the output end of the lifting and clamping cylinder 130. The top pressing push plate 131 is correspondingly located below the two sets of rotating arm blocks 121.

[0068] The workflow of this invention is as follows: The bottom shell applicator 2 affixes protective red cotton to the bottom shell 220 of the power bank; the battery cell shaping and cutting device 3 shapes and flattens the tabs of the battery cell 230 and cuts them to the set size; the battery cell loading robot 32 loads the battery cell and then performs an internal resistance test by contacting the two tabs at the end of the battery cell with the test head 333; the tab cutting mechanism 34 drives the cutter 344 to press down through the cutting drive cylinder 343 to cut the tabs to the set size, thus realizing the power bank's internal resistance test. Core feeding; the battery cell is fed onto the bottom shell on the second turntable 41. The connecting piece shaping mechanism 43 uses the first pressing cylinder 432 to drive the first pressing block 434 to press down, thereby pressing the connection between the connecting piece and the battery cell tab. The second pressing cylinder 433 is used to drive the second pressing block 435 to press down, thereby shaping the connecting piece 240. The second pressing cylinder 433 presses down twice to perform two pressing and shaping operations on the bottom of the connecting piece 240. The first pressing cylinder 432 and the second pressing cylinder 433... The two pressing cylinders 433 press down synchronously to drive the first pressing block 434 and the second pressing block 435 to simultaneously shape the battery cell 230 and the connecting piece. The second pressing cylinder 433 drives the second pressing block 435 to perform secondary shaping on the connecting piece 240. The linear feed module 442 is used to drive the folding pressing block 445 to feed back and forth so that the folding pressing block 445 can fold back after contacting the connecting piece. The linear lifting module 443 is used to drive the folding pressing block 445 to move up and down, thereby driving the folding pressing block 445 to press down and fold the connecting piece 240 back for elastic pressing, flattening it, and then welding it to the battery cell tab to obtain the battery cell main board assembly. The semi-finished product testing device 6 performs power-on testing on the battery cell main board assembly. After the top cover attaching device 7 attaches the graphene sheet to the top cover 210 of the shared power bank, the cover fastening device 8 presses and fastens the top cover 210 onto the bottom shell 220, thereby realizing the assembly of the shell of the shared power bank.

[0069] Finally, it should be emphasized that the above description is not intended to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A shared power bank assembly line, characterized in that, include: The bottom shell red cotton attaching device (2) is used to attach red cotton to the bottom shell of the power bank; The battery cell shaping and cutting device (3) is used to shape and cut the end tabs of the battery cell. Connecting piece shaping and flattening device (4) is used to shape the connecting piece on the bottom shell of the power bank and then laser weld it to the battery cell; Semi-finished product testing device (6) is used to test the power supply of the bottom shell of the power bank with battery cell; The top cover mounting device (7) is used to attach graphene sheets to the top cover of the power bank; The cover fastening device (8) is used to press and fasten the top cover of the power bank onto the bottom shell of the power bank for assembly. The performance testing device (9) is used to test the performance of the power bank after it is powered on. The bottom shell applicator (2), the battery cell shaping and cutting device (3), the connecting piece shaping and flattening device (4), the semi-finished product testing device (6), the top cover applicator (7), the cover fastening device (8), and the performance testing device (9) are arranged in sequence. A bottom shell feeding device (11) is provided on one side of the bottom shell applicator (2), and a battery cell feeding device (12) is provided between the other side of the bottom shell applicator (2) and the battery cell shaping and cutting device (3). A top cover feeding device (13) is provided between the connecting piece shaping and flattening device (4) and the top cover applicator (7). The battery cell shaping and cutting device (3) includes a battery cell loading robot (32), an internal resistance testing mechanism (33), an electrode cutting mechanism (34), a vision inspection mechanism (35), and a battery cell unloading mechanism (37) arranged sequentially along the rotation direction of the first turntable (31). The first turntable (31) is provided with several cutting product limiting seats (30). Electrode flattening mechanisms (36) are provided on both sides of the internal resistance testing mechanism (33). The electrode flattening mechanism (36) includes a flattening feed linear module (361), an upper flattening cylinder (362) and a lower flattening cylinder (363) symmetrically arranged on the output end of the flattening feed linear module (361), a first electrode pressing block (364) connected to the output end of the upper flattening cylinder (362), and a first electrode pressing block (364) connected to the output end of the lower flattening cylinder (362). 363) The second tab pressure block (365) on the output end, the internal resistance testing mechanism (33) includes a test frame (331), a test cylinder (332) set on the test frame (331), a test head (333) connected to the output end of the test cylinder (332), a bearing cylinder (334) and a bearing block (335) set on the output end of the bearing cylinder (334), the bearing block (335) is correspondingly set below the test head (333), the tab cutting mechanism (34) includes a push cylinder (341), a cutting seat plate (342) connected to the output end of the push cylinder (341), a cutting drive cylinder (343) set on the cutting seat plate (342) and a cutter (344) connected to the cutting drive cylinder (343).

2. The shared power bank assembly line according to claim 1, characterized in that: The bottom shell cotton-planting device (2) includes an alternating conveying module and a cotton transplanting mechanism disposed above the alternating conveying module. The cotton transplanting mechanism includes a cotton transplanting robot (21), a rotary cylinder (22) connected to the output end of the cotton transplanting robot (21), a connecting plate (27) connected to the output end of the rotary cylinder (22), and a cotton adsorption block (23) disposed at the bottom of the connecting plate (27). The cotton adsorption block (23) is provided with adsorption holes. The connecting plate (27) is located on the bottom shell of the cotton transplanting robot (21). The red cotton adsorption block (23) has pressure blocks (25) on both sides through an elastic structure. The elastic structure includes a guide post (26) and a first spring (24) sleeved on the guide post (26). The guide post (26) passes through the connecting plate (27) and is connected to the pressure block (25). The two ends of the first spring (24) abut against the connecting plate (27) and the pressure block (25) respectively. The bottom surface of the pressure block (25) is flush with the bottom surface of the red cotton adsorption block (23).

3. A shared power bank assembly line according to claim 2, characterized in that: The alternating conveying module includes a transmission slide rail (20), a conveying slide plate seat (201) slidably disposed on the transmission slide rail (20), a lifting cylinder (29), and a product limiting seat (28) disposed on the conveying slide plate seat (201). The product limiting seat (28) is provided with a placement limiting groove (281), and a limiting clamping cylinder component (282) is provided on the side of the placement limiting groove (281). The conveying slide plate seat (201) is provided with at least two sets of lifting cylinders. The lifting cylinder (29) is disposed at the bottom of the conveying slide plate seat (201) and its output end is connected to the product limiting seat (28).

4. A shared power bank assembly line according to claim 1, characterized in that: The connecting piece shaping and flattening device (4) includes a second turntable (41) that is rotatably arranged, a bottom shell loading robot (421), a battery cell transferring robot (422) arranged sequentially along the rotation direction of the second turntable (41), a connecting piece shaping mechanism (43), a connecting piece folding and pressing mechanism (44), a laser welding mechanism (45), and a semi-finished product unloading mechanism (46). The second turntable (41) is provided with a plurality of limiting clamping fixtures (40). The connecting piece shaping mechanism (43) includes a shaping mounting base (431) and a mounting bracket (432) arranged on the shaping mounting base. The mounting (431) includes a first pressing cylinder (432), a second pressing cylinder (433) correspondingly disposed below the first pressing cylinder (432), a first pressing block (434) connected to the output end of the first pressing cylinder (432), and a second pressing block (435) connected to the output end of the second pressing cylinder (433). The first pressing block (434) is correspondingly disposed above the second pressing block (435) and located in front of the second pressing block (435). The inner side of the second pressing block (435) is set with a right angle.

5. A shared power bank assembly line according to claim 4, characterized in that: The connecting piece folding and pressing mechanism (44) includes a fixed frame (441), a linear feed module (442) disposed on the fixed frame (441), a linear lifting module (443) connected to the output end of the linear feed module (442), a connecting seat (444) connected to the output end of the linear lifting module (443), and a folding block (445) slidably disposed on the connecting seat (444). The folding block (445) is elastically connected to the connecting seat (444) through a second spring member (447).

6. A shared power bank assembly line according to claim 4, characterized in that: The laser welding mechanism (45) includes a transverse module (451), a mounting bracket (452) disposed on the output end of the transverse module (451), a laser welding head (453) connected to the mounting bracket (452), and a light source (454). The light source (454) is disposed below the laser welding head (453). The second turntable (41) is provided with a pressure limiting component on the opposite side of the laser welding mechanism (45). The pressure limiting component includes a fixed connecting frame, a pressure cylinder (456) disposed on the fixed connecting frame, and a pressure limiting block (457) connected to the output end of the pressure cylinder (456). A through groove (458) is provided on the pressure limiting block (457).

7. A shared power bank assembly line according to claim 1, characterized in that: Both the semi-finished product testing device (6) and the performance testing device (9) include a mobile module (91), a support base (92) mounted on the output end of the mobile module (91), a connecting frame (93) mounted above the support base (92), a first lifting cylinder (931) mounted on the connecting frame (93), a plug-in cylinder (94) connected to the output end of the first lifting cylinder (931), an electrical testing cylinder (95) mounted on the output end of the second lifting cylinder (932), a plug-in head (96) connected to the output end of the plug-in cylinder (94), and several probes (97) connected to the output end of the electrical testing cylinder (95). The plug-in cylinder (94) and the electrical testing cylinder (95) The insertion and removal cylinder (94) is horizontally mounted on the connecting frame (93) and the support seat (92) is provided with a limiting groove (921). The support seat (92) is provided with an electrical testing plate (98) on the rear side of the limiting groove (921). The side of the support seat (92) is provided with a slot (922) communicating with the limiting groove (921). The slot (922) is provided corresponding to the insertion and removal head (96). The probe (97) corresponds to the contact (981) on the electrical testing plate (98). The side of the insertion and removal cylinder (94) is provided with a barcode scanner (99). The barcode scanner (99) is aligned with the limiting groove (921).

8. A shared power bank assembly line according to claim 1, characterized in that: The cap fastening device (8) includes a placement plate (80) slidably disposed on the jig conveyor line, a cap feeding mechanism and a cap fastening mechanism arranged sequentially above the jig conveyor line. The cap feeding mechanism includes a cap feeding rack (81), a cap feeding cylinder (82) disposed on the cap feeding rack (81), and a cap suction plate (83) disposed on the output end of the cap feeding cylinder (82). Guide positioning posts (84) are provided on both sides of the cap suction plate (83). The placement plate (80) is provided with a feeding groove (801) and guide contacts (802) adapted to the guide positioning posts (84). The cap fastening mechanism includes a fastening connecting frame (85), two sets of cap fastening cylinders (86) arranged in parallel on the fastening connecting frame (85), and a pressure plate (87) disposed on the output end of the cap fastening cylinder (86).

9. A shared power bank assembly line according to claim 1, characterized in that: Both the cell shaping and cutting device (3) and the connecting piece shaping and flattening device (4) are provided with a plurality of limiting fixture seats (100). Two product limiting grooves (101) are arranged side by side on the limiting fixture seat (100). Side pressing blocks (110) are provided on both sides of the limiting fixture seat (100). A pressing seat (120) is connected to the side pressing block (110) below the limiting fixture seat (100). A rotating arm block (121) is rotatably connected inside the pressing seat (120). The rotating arm block (121) is bent. The top of the rotating arm block (121) is connected to the side pressing block. (110) Connection, the clamping seat (120) is slidably fitted with a guide post (122), one end of the guide post (122) is connected to the side pressure block (110), and the other end is fitted with a reset spring (123). The reset spring (123) is located between the clamping seat (120) and the head of the guide post (122). The limit fixture seat (100) is correspondingly provided with a lifting clamping cylinder (130) below it. The lifting clamping cylinder (130) is provided with a top pressure push plate (131) on the output end of the lifting clamping cylinder (130). The top pressure push plate (131) is correspondingly located below the two sets of rotating arm blocks (121).

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