Solder strip clamping and transferring mechanism applied to BC battery piece and series connection machine

Abstract

The invention discloses a welding strip clamping and transferring mechanism applied to BC battery pieces and a series connection machine. The welding strip clamping and transferring mechanism comprises a transverse movement assembly, a lifting movement assembly and a clamping and pressing assembly. The clamping and pressing assembly comprises a supporting mechanism which is in transmission connection with the lifting motion assembly; the clamping jaw driving mechanism is rotationally arranged on the supporting mechanism; the plurality of welding strip clamping mechanisms are sequentially and fixedly arranged on the supporting mechanism and are in transmission connection with the clamping jaw driving mechanism respectively; the welding strip pressing mechanism is movably arranged on the plurality of welding strip clamping mechanisms in a penetrating manner; and the plurality of pressing mechanisms are respectively arranged on the supporting mechanism and are respectively in transmission connection with the welding strip pressing mechanism. According to the welding strip clamping and transferring mechanism, the transverse movement assembly, the lifting movement assembly and the clamping and pressing assembly are matched with one another, and the problems that in the transferring process of an existing welding strip clamping and transferring mechanism, grid deviation, inaccurate placement or irregular alignment can occur are effectively solved.

Description

Technical Field

[0001] The present invention relates to the technical field of series connection machines, and more specifically, to a welding strip clamping and transporting mechanism and a series connection machine applied to BC battery cells. Background Art

[0002] In the BC series connection equipment, since the BC battery cell welding strip is a flat welding strip, and the welding strip needs to be uniformly prepared on the welding strip preparation platform, all the prepared welding strips are clamped and transported by the welding strip clamping and transportation mechanism, and the welding strips required for a string of BC battery cells are laid on the BC battery string at one time. Since the flat welding strip is different from the traditional round welding strip clamping method, the clamping claws on both sides of the round welding strip need to clamp with greater force to prevent the welding strip from falling off during the pulling process, and only one end needs to be clamped to lay the welding strip on the battery cell, while the flat welding strip has been cut on the welding strip preparation platform, and each welding strip needs to be clamped at both ends, and the welding strip is easy to twist when clamped, which will cause the grid to be biased, inaccurate or misaligned when placed on the BC battery cell, and even damage to the flat welding strip during the clamping process; therefore, a welding strip clamping and transportation mechanism and a series connection machine applied to BC battery cells are provided to solve the above problems. Summary of the invention

[0003] One of the purposes of the present invention is to provide a solder strip clamping and transporting mechanism and a series connection machine for BC battery cells, so as to solve the problem that the existing solder strip clamping and transporting mechanism may have grid deviation, inaccurate placement or misalignment during the transport process.

[0004] The present invention provides a welding ribbon clamping and transporting mechanism and a series connection machine for BC battery sheets, which can be realized by the following technical solutions: The present invention discloses a solder strip clamping and transporting mechanism for BC solar cells, comprising a lateral motion component, which is arranged on the side of a solder strip preparation platform; a lifting motion component, which is slidably arranged on the lateral motion component; a clamping and pressing component, which is arranged on the lifting motion component, and the lateral motion component and the lifting motion component cooperate to drive the clamping and pressing component to move in the lateral and longitudinal directions; The clamping and pressing assembly includes a supporting mechanism, which is transmission-connected to the lifting and lowering motion assembly; a clamping claw driving mechanism rotatably arranged on the supporting mechanism; a plurality of solder strip clamping mechanisms which are sequentially fixedly arranged on the supporting mechanism and transmission-connected to the clamping claw driving mechanism respectively, and the clamping claw driving mechanism synchronously drives the plurality of solder strip clamping mechanisms to clamp or release the solder strip; a solder strip clamping mechanism which is movable and passes through the plurality of solder strip clamping mechanisms and can synchronously clamp a plurality of solder strips; a plurality of pressing mechanisms which are respectively arranged on the supporting mechanism and transmission-connected to the solder strip clamping mechanisms respectively, and drive the solder strip clamping mechanisms to move downward and synchronously clamp a plurality of solder strips.

[0005] In one embodiment, the clamping jaw driving mechanism includes a clamping jaw driving motor, which is fixedly arranged on the supporting mechanism, and the clamping jaw driving motor can rotate forward and reverse; a transmission shaft is rotatably arranged on the supporting mechanism and is transmission-connected to the clamping jaw driving motor, and a plurality of the welding strip clamping mechanisms are respectively transmission-connected to the transmission shaft.

[0006] In one embodiment, the welding strip clamping mechanism includes a connecting plate, which is fixedly connected to the bottom of the supporting mechanism; two welding strip clamping claw structures symmetrically and slidably arranged on opposite sides of the connecting plate; and two transmission structures respectively arranged above the connecting plate and respectively connected to the clamping claw driving mechanism, both of which are respectively connected to the corresponding welding strip clamping claw structures.

[0007] In one embodiment, the welding strip clamp structure includes a fixed clamp and a clamp seat, both of which are slidably arranged on the support mechanism and are respectively connected to the transmission structure; a plurality of movable clamps are movably arranged on the clamp seat through positioning pins; a plurality of reset compression springs are respectively arranged between two adjacent movable clamps or between the movable clamp and the clamp seat; a plurality of pressure blocks are respectively fixedly arranged on the clamp seat, and a plurality of positioning pins are respectively arranged between the clamp seat and the corresponding pressure blocks.

[0008] In one embodiment, the transmission structure includes two transmission bearing assemblies, which are arranged opposite to each other and have movable limits set on the support mechanism, and the transmission shaft is arranged between the two transmission bearing assemblies; a first push block and a second push block are respectively movably limited and arranged on the support mechanism, and both are elastically connected to the corresponding transmission bearing assembly through a first elastic member, and the fixed clamp and the clamp seat are respectively connected to the first push block and the second push block.

[0009] In one embodiment, the welding strip clamping mechanism includes a plurality of elastic pressure column structures, which are movably arranged on the supporting mechanism; a plurality of welding strip pressure structures respectively connected to the corresponding elastic pressure column structures; two lower pressure plates which are arranged in parallel and respectively fixed on the corresponding elastic pressure column structures, and the plurality of lower pressure mechanisms can synchronously perform a downward pressure operation on the two lower pressure plates.

[0010] In one embodiment, the pressing mechanism includes a support structure, which is fixedly mounted on the support structure; a telescopic cylinder fixedly mounted on the support structure; a pressing rod structure transmission-connected to the telescopic cylinder, which movably passes through the support structure to press down the welding strip clamping mechanism disposed thereunder; and at least one limit screw which is adjustable and passes through the pressing rod structure and can be contacted with the support structure in a limiting manner.

[0011] In one embodiment, the lateral motion assembly includes a support frame, which is fixedly arranged on the side of the welding strip preparation platform; two lateral drive modules are symmetrically arranged on the opposite ends of the support frame, and the two ends of the lifting motion assembly are respectively transmission-arranged on the corresponding lateral drive modules.

[0012] In one embodiment, the lifting motion assembly includes a sliding support mechanism, both ends of which are respectively transmission-connected to the corresponding lateral drive module; and a lifting mechanism disposed on the sliding support mechanism and transmission-connected to the support mechanism.

[0013] A series connection machine for BC battery cells of the present invention comprises a welding strip laying device, wherein the welding strip laying device comprises the welding strip clamping and transporting mechanism described in any one of the above items; It also includes a cell feeding device, a cell glue applying device, a cell conveying device, a cell handling device, a solder strip feeding device, a cell solder strip conveying device and a UV curing device; Among them, the cell loading device performs loading operations on BC cell sheets; the cell gluing device performs gluing operations on the BC cell sheets conveyed by the cell loading device; the cell conveying device performs conveying operations on the BC cell sheets after gluing; the cell transporting device transports the glued BC cell sheets at the output end of the cell conveying device to the input end of the cell solder tape conveying device; the solder tape loading device places the solder tape roll to provide the solder tape required for battery string welding; the solder tape laying device lays the solder tape of a predetermined length on the glued BC cell sheets at the input end of the cell solder tape conveying device; the UV curing device is arranged above the cell solder tape conveying device, and the cell solder tape conveying device conveys the glued BC cell sheets laid with the solder tape to the bottom of the UV curing device for curing operations.

[0014] Compared with the prior art, the beneficial effects of the solder strip clamping and transporting mechanism and the series connection machine applied to BC battery cells of the present invention are as follows: The present invention discloses a welding strip clamping and transporting mechanism for BC battery cells and a clamping and pressing assembly in a series machine, which can transport welding strips required for a string of BC battery cells at one time. The opening distance of the welding strip clamping claw structure can be uniformly adjusted by the rotation angle of the motor-driven transmission shaft, and the consistency is high. The welding strip will not be clamped unstably due to different opening and closing distances of the clamping claws. The welding strip is clamped by clamping the two ends of a welding strip, which can prevent the deflection of the welding strip while clamping the flat welding strip, and the welding strip transporting process is smooth. Through cooperation with the welding strip pressing mechanism, the welding strip can be flattened when aligned with the grid line of the BC battery cell, and the situation that the welding strip deviates from the grid when the clamping claw is released is avoided, which effectively solves the problem that the existing welding strip clamping and transporting mechanism may deviate from the grid, be inaccurate or misaligned during the transportation process. At the same time, the number of welding strip clamping claw structures can be increased or decreased according to the number of pieces in the BC battery string, and the efficiency of switching the version is high. The clamping and pressing assembly cooperates with the lateral movement assembly and the lifting movement assembly, and the welding strip and the BC battery cell grid line have high alignment accuracy, which effectively avoids the situation that the welding strip deviates from the grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of a welding ribbon clamping and transporting mechanism applied to BC battery sheets of the present invention, including a lateral motion component, a lifting motion component and a clamping and pressing component; Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the lateral motion assembly shown; Figure 3 yes Figure 1 The front structural diagram of the lifting motion assembly shown; Figure 4 yes Figure 1 The exploded structural diagram of the clamping and pressing assembly shown includes a welding strip clamping mechanism, a welding strip pressing mechanism and a pressing mechanism; Figure 5 yes Figure 4 A schematic diagram of a partial exploded structure of the welding strip clamping mechanism and the welding strip pressing mechanism shown, including a welding strip pressing structure; Figure 6 yes Figure 5 Schematic diagram of the exploded structure of the pressure-bonded strip structure shown; Figure 7 yes Figure 4 Schematic diagram of the explosion structure of the downward pressure mechanism shown.

[0017] Indications in the figure: 100, welding strip clamping and transporting mechanism; 10, lateral motion component; 11, support frame; 12, lateral drive module; 121, lateral drive motor; 122, linear module body; 123, sliding seat; 13, wiring trough; 20, lifting and lowering motion component; 21, sliding support mechanism; 211, sliding plate; 212, connecting vertical plate; 2121, guide block; 22, lifting mechanism; 221, fixed seat; 222, lifting drive motor; 223, screw rod; 224, lifting bracket; 2241, guide rail; 225, limit block; 30, clamping and pressing component; 31, support mechanism; 32, clamping claw drive mechanism; 321, clamping claw drive motor; 322, transmission shaft; 323, support bearing; 33, welding strip clamping mechanism; 331, connecting plate; 3311, guide sliding structure; 332, welding strip clamp Claw structure; 3321, fixed clamping claw; 3322, clamping claw seat; 3323, movable clamping claw; 3324, positioning pin; 3325, reset spring; 3326, pressing block; 333, transmission structure; 3331, transmission bearing assembly; 3332, first push block; 3333, second push block; 3334, first elastic member; 34, welding strip pressing mechanism; 341, elastic pressure column structure; 342, welding strip pressing structure; 3421, mounting plate; 3422, pressing needle; 34221, pressing needle body; 34222, return spring; 3423, retaining spring; 343, pressing plate; 35, pressing mechanism; 351, supporting structure; 3511, fixing plate; 3512, mounting block; 352, telescopic cylinder; 353, pressing rod structure; 3531, movable plate; 3532, pressing rod body; 354, limiting screw. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] See also Figure 1As shown, a solder strip clamping and transporting mechanism 100 applied to BC battery cells of the present invention is mainly used in the process of synchronously clamping and transporting multiple prepared solder strips to the BC battery cells, which includes a lateral movement component 10, a lifting movement component 20 and a clamping and pressing component 30; the lateral movement component 10 is arranged on the side of the solder strip preparation platform; the lifting movement component 20 is slidably arranged on the lateral movement component 10, and the lateral movement component 10 drives the lifting movement component 20 to move laterally; the clamping and pressing component 30 is arranged below the lifting movement component 20, which can clamp and press multiple prepared solder strips on the solder strip preparation platform, and then through the cooperation of the lateral movement component 10 and the lifting movement component 20, the multiple solder strips clamped by the clamping and pressing component 30 are transported and laid on the corresponding BC battery cells on the battery cell solder strip conveying mechanism.

[0021] See also Figure 1 and Figure 2 As shown, in this embodiment, the lateral motion assembly 10 includes a support frame 11 and two lateral drive modules 12; the support frame 11 is fixedly arranged on the side of the welding strip preparation platform; the two lateral drive modules 12 are symmetrically arranged on the opposite ends of the support frame 11, and the two ends of the lifting motion assembly 20 are respectively driven and arranged on the corresponding lateral drive modules 12, and the two lateral drive modules 12 cooperate to drive the lifting motion assembly 20 to reciprocate in the lateral direction. Specifically, the lateral drive module 12 includes a lateral drive motor 121, a linear module body 122 and a sliding seat 123; the linear module body 122 is fixedly installed on the support frame 11; the lateral drive motor 121 is driven and arranged on one side of the linear module body 122; the sliding seat 123 is slidably arranged on the linear module body 122 and fixedly connected to the lifting motion assembly 20, and the lateral drive motor 121 drives the sliding seat 123 to reciprocate in the lateral direction on the linear module body 122; preferably, the lateral drive motor 121 adopts a servo motor, so as to ensure the lateral motion accuracy of the lifting motion assembly 20. Specifically, a wiring groove 13 is fixedly provided on the support frame 11, and the wiring of the welding strip clamping and transporting mechanism 100 is conveniently performed through the wiring groove 13.

[0022] See also Figure 1 and Figure 3As shown, in this embodiment, the lifting and lowering motion assembly 20 includes a sliding support mechanism 21 and a lifting mechanism 22; the two ends of the sliding support mechanism 21 are respectively connected to the corresponding transverse driving module 12 by transmission, and the two transverse driving modules 12 drive the sliding support mechanism 21 to reciprocate laterally on the support frame 11; the lifting mechanism 22 is arranged on the sliding support mechanism 21 and is connected to the clamping and pressing assembly 30 by transmission, and the lifting mechanism 22 drives the clamping and pressing assembly 30 to move longitudinally. Specifically, the sliding support mechanism 21 includes a sliding plate 211 and two connecting vertical plates 212; the two ends of the sliding plate 211 are respectively connected to the corresponding transverse driving module 12 by transmission; the two connecting vertical plates 212 are symmetrically fixedly arranged below the sliding plate 211, and at least one guide block 2121 is longitudinally fixedly arranged on the connecting vertical plate 212, and the lifting and lowering mechanism 22 is guided by at least one guide block 2121.

[0023] See also Figure 3 As shown, specifically, the lifting mechanism 22 includes a fixed seat 221, a lifting drive motor 222, a screw rod 223, a lifting bracket 224 and at least one limit block 225; the fixed seat 221 is fixedly arranged on the sliding plate 211; the lifting drive motor 222 is fixedly arranged on the fixed seat 221 and its output shaft movably passes through the sliding plate 211; the screw rod 223 is transmission-connected to the output shaft of the lifting drive motor 222; the lifting bracket 224 is transmission-connected to the screw rod 223 and its two ends are respectively slidably connected to the two connecting vertical plates 212, and the clamping and pressing assembly 30 is fixedly arranged below the lifting bracket 224, and the lifting drive motor 222 drives the lifting bracket 224 through the screw rod 223 to perform a linear lifting motion relative to the sliding plate 211 under the guiding action of the two connecting vertical plates 212, thereby driving the clamping and pressing assembly 30 to reciprocate in the longitudinal direction; at least one limit block 225 is fixedly arranged on the sliding plate 211 and arranged opposite to the lifting bracket 224, which performs a limit operation on the rising motion of the lifting bracket 224. Specifically, the lifting drive motor 222 adopts a servo motor, so as to ensure the accuracy of the longitudinal movement of the clamping and pressing assembly 30; guide rails 2241 are vertically fixed on both sides of the lifting bracket 224, and the two guide rails 2241 are slidably set in the corresponding guide blocks 2121.

[0024] See also Figure 1 and Figure 4As shown, in the present embodiment, the clamping and pressing assembly 30 includes a supporting mechanism 31, a clamping jaw driving mechanism 32, a plurality of welding strip clamping mechanisms 33, a welding strip pressing mechanism 34 and a plurality of pressing mechanisms 35; the supporting mechanism 31 is fixedly connected to the lifting bracket 224, and moves with the movement of the lifting bracket 224; the clamping jaw driving mechanism 32 is rotatably arranged on the supporting mechanism 31; a plurality of welding strip clamping mechanisms 33 are sequentially fixedly arranged below the supporting mechanism 31 and are respectively connected to the clamping jaw driving mechanism 32 in transmission, and the clamping jaw driving mechanism 32 synchronously drives the plurality of welding strip clamping mechanisms 33 to clamp or release the corresponding welding strips; the welding strip pressing mechanism 34 is movably arranged on the plurality of welding strip clamping mechanisms 33, and can simultaneously press the plurality of welding strips; the plurality of pressing mechanisms 35 are respectively arranged on the supporting mechanism 31 and are respectively connected to the welding strip pressing mechanism 34 in transmission, and drive the welding strip pressing mechanism 34 to move downward and synchronously press the plurality of welding strips.

[0025] See also Figure 1 and Figure 4 As shown, the clamp driving mechanism 32 includes a clamp driving motor 321, a transmission shaft 322 and at least one supporting bearing 323; the clamp driving motor 321 is fixedly arranged on the supporting mechanism 31 and can rotate forward and reversely; the transmission shaft 322 is rotatably arranged on both ends of the supporting mechanism 31 and is connected to the clamp driving motor 321 in transmission connection; a plurality of welding strip clamping mechanisms 33 are respectively connected to the transmission shaft 322 in transmission connection; the clamp driving motor 321 drives the transmission shaft 322 to change the angle on the supporting mechanism 31, so that the plurality of welding strip clamping mechanisms 33 synchronously clamp or release the corresponding welding strips; at least one supporting bearing 323 is fixedly arranged on the supporting mechanism 31, the transmission shaft 322 is rotatably arranged through at least one supporting bearing 323, and the transmission shaft 322 is supported by at least one supporting bearing 323. Specifically, the clamp driving motor 321 adopts a servo motor, so as to ensure the precise control of the rotation angle of the transmission shaft 322; the transmission shaft 322 adopts a flat rotating shaft.

[0026] See also Figure 4 and Figure 5As shown, in this embodiment, the welding strip clamping mechanism 33 includes a connecting plate 331, two welding strip clamping claw structures 332 and two transmission structures 333; the connecting plate 331 is fixedly connected to the bottom of the supporting mechanism 31; the two welding strip clamping claw structures 332 are symmetrically slidably arranged on the opposite sides of the connecting plate 331; the two transmission structures 333 are respectively arranged above the connecting plate 331 and are respectively connected to the transmission shaft 322 for transmission, and the two transmission structures 333 are respectively connected to the corresponding welding strip clamping claw structures 332 for transmission, and the clamping claw driving motor 321 drives the two welding strip clamping claw structures 332 through the transmission shaft 322 and the two transmission structures 333 in turn to synchronously clamp or release the corresponding welding strips. Specifically, a guiding sliding structure 3311 is respectively arranged on the opposite sides of the connecting plate 331, and two welding strip clamping structures 332 are respectively slidably connected to the corresponding guiding sliding structures 3311; the guiding sliding structure 3311 includes a guide rail and a plurality of sliding blocks, and the guide rail is laterally fixedly arranged on the side of the connecting plate 331, and the plurality of sliding blocks are respectively slidably arranged on the guide rail and fixedly connected to the corresponding welding strip clamping structures 332, and the welding strip clamping structure 332 moves laterally on the guide rail through the sliding block, thereby realizing the guiding operation of the welding strip clamping structure 332.

[0027] See also Figure 5 As shown, in this embodiment, the welding strip clamping structure 332 includes a fixed clamping jaw 3321, a clamping jaw seat 3322, a plurality of movable clamping jaws 3323, a plurality of positioning pins 3324, a plurality of reset springs 3325 and a plurality of pressing blocks 3326; the fixed clamping jaw 3321 and the clamping jaw seat 3322 are respectively slidably arranged on the guide rail through corresponding sliding blocks and are respectively connected to the transmission structure 333 in transmission; the plurality of movable clamping jaws 3323 are respectively movably arranged on the clamping jaw seat 3322 through the positioning pins 3324; the plurality of reset springs 3325 are respectively arranged on two adjacent movable jaws The jaws 3323 are arranged between them or between the movable jaws 3323 and the jaw seat 3322; multiple pressure blocks 3326 are respectively fixedly arranged on the jaw seat 3322, and multiple positioning pins 3324 are respectively arranged between the jaw seat 3322 and the corresponding pressure blocks 3326; the jaw drive motor 321 drives the fixed jaw 3321 and the jaw seat 3322 to move toward or away from each other through the transmission shaft 322 and the transmission structure 333, thereby driving the fixed jaw 3321 and the multiple movable jaws 3323 to cooperate and synchronously clamp or release multiple welding strips.

[0028] See also Figure 5As shown, specifically, the transmission structure 333 includes two transmission bearing assemblies 3331, a first push block 3332, a second push block 3333 and a plurality of first elastic members 3334; the two transmission bearing assemblies 3331 are arranged opposite to each other and the movable limit is arranged on the support mechanism 31, and the transmission shaft 322 is transmission-arranged between the two transmission bearing assemblies 3331; the first push block 3332 and the second push block 3333 are respectively movably limited and arranged on the support mechanism 31 and are respectively elastically transmission-connected with the corresponding transmission bearing assemblies 3331 through the first elastic member 3334, the fixed clamping jaw 3321 and the clamping jaw seat 3322 are respectively transmission-connected with the first push block 3332 and the second push block 3333, the first push block 3332 and the second push block 3333 respectively drive the fixed clamping jaw 3321 and the clamping jaw seat 3322 to move toward or away from each other, thereby driving the fixed clamping jaw 3321 and the plurality of movable clamping jaws 3323 to cooperate and synchronously clamp or release the plurality of welding strips. Specifically, the transmission bearing assembly 3331 includes a connecting block and a rotating bearing. The connecting block is movably limited and arranged on the supporting mechanism 31. The rotating bearing is rotatably arranged on the connecting block and is in contact and connected with the transmission shaft 322. The first elastic member 3334 is a spring.

[0029] See also Figure 5 and Figure 6 As shown, in the present embodiment, the welding strip clamping mechanism 34 includes a plurality of elastic pressure column structures 341, a plurality of pressure welding strip structures 342 and two lower pressure plates 343; the plurality of elastic pressure column structures 341 are respectively and movably arranged on the corresponding support mechanism 31; the plurality of pressure welding strip structures 342 are respectively connected to the bottom of the corresponding elastic pressure column structures 341, and they perform a clamping operation on the welding strip arranged thereunder; the two lower pressure plates 343 are arranged in parallel and are respectively fixed on the corresponding elastic pressure column structures 341, and the plurality of lower pressure mechanisms 35 can synchronously perform a downward operation on the two lower pressure plates 343, thereby driving the corresponding pressure welding strip structures 342 to perform a clamping operation on the plurality of welding strips through the plurality of elastic pressure column structures 341. Specifically, the elastic pressure column structure 341 includes a linear bearing, a pressure column body and a second elastic member. The linear bearing is fixedly penetrated on the support mechanism 31; the pressure column body movably penetrates the linear bearing, one end of which is fixedly connected to the lower pressure plate 343, and the other end is fixedly connected to the pressure welding belt structure 342; the second elastic member is arranged between the pressure column body and the support mechanism 31, which provides a restoring buffer force to the pressure column body.

[0030] See also Figure 6As shown, in this embodiment, the pressure welding strip structure 342 includes a mounting plate 3421, a plurality of pressure pins 3422 and a plurality of retaining springs 3423; the mounting plate 3421 is fixedly connected to the lower end of the elastic pressure column structure 341; the plurality of pressure pins 3422 are movably arranged on the mounting plate 3421; and the plurality of retaining springs 3423 respectively limit the corresponding pressure pins 3422 on the mounting plate 3421. Specifically, the pressure pin 3422 includes a pressure pin body 34221 and a return spring 34222; the pressure pin body 34221 movably passes through the mounting plate 3421 and its upper end is fixedly connected to the retaining spring 3423; the return spring 34222 is arranged between the pressure pin body 34221 and the lower side of the mounting plate 3421, and provides a buffer force for the pressure pin body 34221 to press the welding strip.

[0031] See also Figure 4 and Figure 7 As shown, in this embodiment, the pressing mechanism 35 includes a support structure 351, a telescopic cylinder 352, a pressing rod structure 353 and at least one stop screw 354; the support structure 351 is fixedly arranged on the support mechanism 31; the telescopic cylinder 352 is fixedly arranged on the support structure 351; the pressing rod structure 353 is transmission-connected with the telescopic cylinder 352 and movably penetrates the support structure 351 to press down the welding strip pressing mechanism 34 arranged thereunder; at least one stop screw 354 is adjustable and penetrates the pressing rod structure 353 and can be contacted and connected with the support structure 351 in a limited position. Specifically, the support structure 351 includes two fixed plates 3511 and a mounting block 3512, the two fixed plates 3511 are relatively fixedly arranged on the support mechanism 31; the mounting block 3512 is fixedly arranged on the two fixed plates 3511, the telescopic cylinder 352 is fixedly arranged on the mounting block 3512, and the pressing rod structure 353 movably penetrates the mounting block 3512. Specifically, the lower pressure rod structure 353 includes a movable plate 3531 and two lower pressure rod bodies 3532. The movable plate 3531 is transmission-connected to the telescopic cylinder 352. At least one limit screw 354 is adjustably arranged through the movable plate 3531 and can be contacted and connected with the mounting block 3512 in a limited manner. One end of the two lower pressure rod bodies 3532 is respectively fixed on the movable plate 3531, and the other ends thereof are respectively movably arranged through the mounting block 3512 and can be contacted and connected with the corresponding lower pressure plate 343, thereby realizing the downward pressing operation of the welding strip clamping mechanism 34.

[0032] The present invention provides a series connection machine for BC battery cells, including a solder strip laying device, the solder strip laying device including any of the above-mentioned solder strip clamping and transporting mechanisms 100, the solder strip clamping and transporting mechanism 100 performs a clamping, transporting and compacting operation on a plurality of prepared solder strips simultaneously; It also includes a cell feeding device, a cell glue applying device, a cell conveying device, a cell handling device, a solder strip feeding device, a cell solder strip conveying device and a UV curing device; Among them, the cell loading device loads the BC cell; the cell gluing device applies glue to the BC cell conveyed by the cell loading device; the cell conveying device conveys the BC cell after gluing; the cell transporting device transports the glued BC cell at the output end of the cell conveying device to the input end of the cell solder tape conveying device; the solder tape loading device places the solder tape roll to provide the solder tape required for battery string welding; the solder tape laying device lays the solder tape of a predetermined length on the glued BC cell at the input end of the cell solder tape conveying device; the UV curing device is arranged above the cell solder tape conveying device, and the cell solder tape conveying device transports the glued BC cell with the solder tape laid to the bottom of the UV curing device for curing.

[0033] It should be noted that the specific working process of the solder strip clamping and transporting mechanism and the series connection machine applied to the BC battery cell of the present invention is as follows: after the solder strip is prepared on the solder strip preparation platform, the lateral motion component 10 cooperates with the lifting motion component 20 to transport the clamping and pressing component 30 to the top of the solder strip preparation platform, and the positions of the multiple solder strip clamping mechanisms 33 correspond to the solder strips prepared on the solder strip preparation platform one by one, and the clamping jaw driving motor 321 drives the transmission shaft 322 to rotate a certain angle, and the transmission shaft 322 makes the two transmission bearing components 3331 back The two transmission bearing assemblies 3331 respectively drive the first push block 3332 and the second push block 3333 to move in the opposite direction through the first elastic member 3334, and at the same time compress the first elastic member 3334 to accumulate restoring force; the first push block 3332 and the second push block 3333 respectively drive the fixed clamping jaw 3321 and the clamping jaw seat 3322 to move in the opposite direction, thereby driving the fixed clamping jaw 3321 and the plurality of movable clamping jaws 3323 to open relatively; the lifting and lowering motion assembly 20 drives the clamping and pressing assembly 30 to descend, and then the clamping jaws The driving motor 321 drives the transmission shaft 322 to return to the initial position, and the first push block 3332 and the second push block 3333 move toward each other under the elastic restoring force of the first elastic member 3334, and the two respectively drive the fixed clamping jaw 3321 and the clamping jaw seat 3322 to move toward each other, thereby driving the fixed clamping jaw 3321 and the plurality of movable clamping jaws 3323 to clamp the corresponding welding strips; and then the clamping and pressing assembly 30 holding the welding strip is transported to the top of the BC battery cell string through the cooperation of the lateral motion assembly 10 and the lifting motion assembly 20. One-to-one correspondence with the grid lines of the BC battery cells, at the same time, the telescopic cylinder 352 contracts, which in turn drives the lower pressure rod body 3532, the lower pressure plate 343, the elastic pressure column structure 341, and the pressure welding strip structure 342 to move downward, and the welding strip is flattened with the corresponding grid lines of the BC battery cells through the pressure needle 3422, and then the clamping claw driving mechanism 32 synchronously drives multiple welding strip clamping mechanisms 33 to release the corresponding welding strips, the telescopic cylinder 352 extends, and the pressure needle 3422 moves upward to release the clamping operation on the welding strip, thereby completing the welding strip laying operation of a string of BC battery cells.

[0034] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A solder ribbon clamping and transporting mechanism for BC battery cells, characterized in that: include: A lateral motion assembly, which is arranged on the side of the welding strip preparation platform; A lifting motion assembly, which is slidably arranged on the lateral motion assembly; A clamping and pressing assembly is arranged on the lifting and lowering motion assembly, and the lateral motion assembly cooperates with the lifting and lowering motion assembly to drive the clamping and pressing assembly to move in the lateral and longitudinal directions; The clamping and pressing assembly includes a supporting mechanism, which is transmission-connected to the lifting and lowering motion assembly; a clamping claw driving mechanism rotatably arranged on the supporting mechanism; a plurality of solder strip clamping mechanisms which are sequentially fixedly arranged on the supporting mechanism and transmission-connected to the clamping claw driving mechanism respectively, and the clamping claw driving mechanism synchronously drives the plurality of solder strip clamping mechanisms to clamp or release the solder strip; a solder strip clamping mechanism which is movable and passes through the plurality of solder strip clamping mechanisms and can synchronously clamp a plurality of solder strips; a plurality of pressing mechanisms which are respectively arranged on the supporting mechanism and transmission-connected to the solder strip clamping mechanisms respectively, and drive the solder strip clamping mechanisms to move downward and synchronously clamp a plurality of solder strips.

2. According to claim 1, a solder strip clamping and transporting mechanism for BC battery cells is characterized in that: The clamping jaw driving mechanism includes a clamping jaw driving motor, which is fixedly arranged on the supporting mechanism and can rotate forward and reverse; a transmission shaft rotatably arranged on the supporting mechanism and connected to the clamping jaw driving motor, and a plurality of the welding strip clamping mechanisms are respectively connected to the transmission shaft.

3. The solder strip clamping and transporting mechanism for BC solar cells according to claim 1 is characterized in that: The welding strip clamping mechanism includes a connecting plate, which is fixedly connected to the bottom of the supporting mechanism; two welding strip clamping claw structures symmetrically and slidably arranged on opposite sides of the connecting plate; and two transmission structures respectively arranged above the connecting plate and respectively connected to the clamping claw driving mechanism, both of which are respectively connected to the corresponding welding strip clamping claw structures.

4. The solder strip clamping and transporting mechanism for BC battery cells according to claim 3 is characterized in that: The welding strip clamp structure includes a fixed clamp and a clamp seat, both of which are slidably arranged on the supporting mechanism and are respectively connected to the transmission structure; a plurality of movable clamps are movably arranged on the clamp seat through positioning pins; a plurality of reset compression springs are respectively arranged between two adjacent movable clamps or between the movable clamp and the clamp seat; a plurality of pressure blocks are respectively fixedly arranged on the clamp seat, and a plurality of positioning pins are respectively arranged between the clamp seat and the corresponding pressure blocks.

5. The solder strip clamping and transporting mechanism for BC solar cells according to claim 4 is characterized in that: The transmission structure includes two transmission bearing assemblies, which are arranged opposite to each other and movably limited on the supporting mechanism, and the transmission shaft is arranged between the two transmission bearing assemblies; a first push block and a second push block are respectively movably limited on the supporting mechanism, and are elastically connected to the corresponding transmission bearing assemblies through a first elastic member, and the fixed clamp and the clamp seat are respectively connected to the first push block and the second push block.

6. The solder strip clamping and transporting mechanism for BC battery cells according to claim 1 is characterized in that: The welding strip clamping mechanism includes a plurality of elastic pressure column structures, which are movably arranged on the supporting mechanism; a plurality of pressure welding strip structures respectively connected to the corresponding elastic pressure column structures; two lower pressure plates which are arranged in parallel and respectively fixed on the corresponding elastic pressure column structures, and the plurality of lower pressure mechanisms can synchronously perform a downward pressure operation on the two lower pressure plates.

7. The solder strip clamping and transporting mechanism for BC solar cells according to claim 6 is characterized in that: The pressing mechanism includes a supporting structure, which is fixedly arranged on the supporting structure; a telescopic cylinder fixedly arranged on the supporting structure; a pressing rod structure transmission-connected to the telescopic cylinder, which movably passes through the supporting structure to press down the welding strip clamping mechanism arranged thereunder; and at least one limit screw which is adjustable and passes through the pressing rod structure and can be contacted with the supporting structure in a limiting manner.

8. The solder strip clamping and transporting mechanism for BC battery cells according to claim 1 is characterized in that: The lateral motion assembly includes a support frame, which is fixedly arranged on the side of the welding strip preparation platform; two lateral drive modules are symmetrically arranged on the opposite ends of the support frame, and the two ends of the lifting motion assembly are respectively transmission-arranged on the corresponding lateral drive modules.

9. The solder strip clamping and transporting mechanism for BC solar cells according to claim 8, characterized in that: The lifting motion assembly comprises a sliding support mechanism, both ends of which are respectively transmission-connected to the corresponding lateral drive module; and a lifting mechanism arranged on the sliding support mechanism and transmission-connected to the support mechanism.

10. A series connection machine for BC cells, characterized in that: It comprises a welding tape laying device, and the welding tape laying device comprises the welding tape clamping and transporting mechanism according to any one of claims 1 to 9; It also includes a cell feeding device, a cell glue applying device, a cell conveying device, a cell handling device, a solder strip feeding device, a cell solder strip conveying device and a UV curing device; Among them, the cell loading device performs loading operations on BC cell sheets; the cell gluing device performs gluing operations on the BC cell sheets conveyed by the cell loading device; the cell conveying device performs conveying operations on the BC cell sheets after gluing; the cell transporting device transports the glued BC cell sheets at the output end of the cell conveying device to the input end of the cell solder tape conveying device; the solder tape loading device places the solder tape roll to provide the solder tape required for battery string welding; the solder tape laying device lays the solder tape of a predetermined length on the glued BC cell sheets at the input end of the cell solder tape conveying device; the UV curing device is arranged above the cell solder tape conveying device, and the cell solder tape conveying device conveys the glued BC cell sheets laid with the solder tape to the bottom of the UV curing device for curing operations.

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