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

Abstract

The invention discloses a solder strip preparation mechanism applied to a BC battery piece and a series machine. The solder strip preparation mechanism comprises a translation assembly; the welding strip preparation assembly is arranged on the translation assembly in a transmission manner; the welding strip cutting assembly is fixedly arranged on one side of the welding strip preparation assembly; the welding strip preparation assembly comprises a sliding mechanism which is in transmission connection with the translation assembly; the first end clamping and cutting mechanism is fixedly arranged on the sliding mechanism and is close to one side of the welding strip cutting assembly; the middle clamping and cutting-off mechanisms and the second end clamping mechanism are sequentially arranged on the side edge of the first end clamping and cutting-off mechanism and can be movably arranged on the sliding mechanism. According to the welding strip preparation mechanism, through cooperation of the welding strip preparation assembly and the welding strip cutting assembly, the problem that multiple welding strips cannot be clamped, cut off and arranged on an existing welding strip preparation mechanism is 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 preparation mechanism and a series connection machine for BC battery cells. Background Art

[0002] In the BC battery cell series connection equipment, according to the manufacturing process of BC battery cells, the positive and negative electrodes of adjacent battery cells on the battery cell string are connected, that is, the positive electrode of the A cell is connected to the negative electrode of the B cell, and the negative electrode of the A cell is connected to the positive electrode of the B cell; when the pull claw cooperates with the belt pressing mechanism to pull the two groups of welding tapes to the welding tape preparation platform respectively, the welding tapes need to be cut and arranged on the welding tape preparation platform, and the welding tapes required for a string of battery cells are prepared, and then the welding tapes are transported to the battery cells at one time for alignment and welding. Since the AB battery cells on the BC battery string are connected, the length of the middle welding tape is different from that of the welding tapes at both ends, the welding tape is not continuous in the middle, and the adjacent rows of welding tapes are staggered by a certain distance. The polarity of the welding tapes at the same position of the end of the battery cell string A and the battery cell string B is opposite, and the number of welding tapes required for battery strings with different numbers of cells is also different. Multiple welding tapes need to be clamped, cut and arranged on the welding tape preparation platform, and the structure also needs to be compatible with the requirements of the welding tapes required by the AB string of BC battery cells and battery strings with different numbers of cells; therefore, a welding tape preparation 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 preparation mechanism and a series connection machine for BC battery cells, so as to solve the problem that the existing solder strip preparation mechanism cannot perform clamping, cutting and arranging operations on multiple solder strips.

[0004] The present invention can realize a welding strip preparation mechanism and a series connection machine applied to BC battery sheets by the following technical solutions: The present invention discloses a welding strip preparation mechanism for BC battery cells, comprising a translation component; a welding strip preparation component, which is transmission-arranged on the translation component; and a welding strip cutting component, which is fixedly arranged on one side of the welding strip preparation component. Among them, the solder strip preparation assembly includes a sliding mechanism, which is transmission-connected to the translation assembly; a first end clamping and cutting mechanism fixedly arranged on the sliding mechanism and close to one side of the solder strip cutting assembly; a plurality of intermediate clamping and cutting structures and a second end clamping mechanism which are sequentially arranged on the sides of the first end clamping and cutting mechanism and can be movably arranged on the sliding mechanism respectively.

[0005] In one embodiment, the sliding mechanism includes a sliding table body, which is transmission-connected to the translation assembly; a guide rail transversely fixedly arranged on the sliding table body, and a plurality of the intermediate clamping and cutting structures and the second end clamping mechanism are respectively slidably arranged on the guide rail; a rack fixedly arranged on the side of the sliding table body and parallel to the guide rail, and a plurality of the intermediate clamping and cutting structures and the second end clamping mechanism are respectively meshed and transmission-connected with the rack.

[0006] In one embodiment, the first end clamping and cutting mechanism includes a first support frame, which is fixedly arranged on the sliding table body and close to one end of the welding ribbon cutting assembly; a first clamping structure and a first cutting structure are fixedly arranged on the first support frame in sequence.

[0007] In one embodiment, the first clamping structure includes a first fixing seat fixedly disposed on the first supporting frame; a first clamping jaw assembly and a second clamping jaw assembly sequentially disposed on the first fixing seat.

[0008] In one embodiment, the first clamping assembly and the second clamping assembly include a first lifting cylinder, a welding strip clamping mechanism, two guide shafts and a support limit plate; the first lifting cylinder is fixedly arranged on the first fixed seat; the welding strip clamping mechanism is movably arranged on the first fixed seat and is transmission-connected to the first lifting cylinder; the two guide shafts are respectively fixedly arranged at the two ends of the welding strip clamping mechanism and movably pass through the first fixed seat; the support limit plate is fixedly arranged on the side of the welding strip clamping mechanism.

[0009] In one embodiment, the first cutting structure includes a second fixed seat, which is fixed on the first support frame; a push-pull cylinder and a second lifting cylinder are respectively fixed on the second fixed seat; a pressing head and a cutting head are respectively movably arranged on the second fixed seat and are respectively connected to the push-pull cylinder and the second lifting cylinder; the push-pull cylinder drives the pressing head to move horizontally to press multiple welding strips; the second lifting cylinder drives the cutting head to move upward to cut multiple welding strips.

[0010] In one embodiment, the first cutting structure also includes a pressure block, which is arranged on the side of the cutting head; a plurality of needle bearings respectively passing through the clamping head, the cutting head, and the pressure block in sequence; and a plurality of clamping members respectively passing through the pressure block, and the two ends of the clamping members are respectively in contact and connected with the inner wall of the cutting head and the second fixed seat.

[0011] In one embodiment, the intermediate clamping and cutting structure includes a first sliding frame, which is slidably set on the guide rail; a first rotating motor fixedly set on the first sliding frame, which can rotate forward and reverse; a first gear fixedly set on the output shaft of the first rotating motor and meshingly connected to the rack; at least one clamping structure and at least one cutting structure respectively arranged on the first sliding frame.

[0012] In one embodiment, the second end clamping mechanism includes a second sliding frame, which is slidably set on the guide rail; a second rotating motor fixedly set on the second sliding frame, which can rotate forward and reverse; a second gear fixedly set on the output shaft of the second rotating motor and meshingly connected to the rack; and a plurality of fourth clamping structures sequentially arranged on the second sliding frame.

[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 any of the welding strip preparation mechanisms described above, and the welding strip preparation mechanism performs clamping, cutting and arranging operations on welding strips required for the AB series of BC battery cells; 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 welding strip preparation mechanism and series connection machine applied to BC battery cells of the present invention are as follows: The present invention discloses a welding strip preparation mechanism and a series connection machine for BC battery cells. The welding strips are placed on a welding strip preparation assembly, and then the first end clamping and cutting mechanism, a plurality of intermediate clamping and cutting structures and a second end clamping mechanism are used to clamp and cut the welding strips at required positions to obtain a suitable welding strip length. The plurality of welding strips are then pulled apart by a certain distance by a gear rack motion mechanism to achieve an arrangement operation of the welding strip positions, which effectively solves the problem that the existing welding strip preparation mechanism cannot perform clamping, cutting and arranging operations on the plurality of welding strips. When it is necessary to switch between the A string and the B string of the BC battery string, the plurality of welding strips can be staggered by a grid line distance and then clamped, cut and arranged in cooperation with the pulling mechanism and the pressing mechanism to obtain the required welding strips. When it is necessary to switch the number of sheets of the BC battery string, the number of intermediate clamping and cutting structures can be adjusted to meet the demand. The welding strip preparation mechanism can uniformly prepare the welding strips required for the BC battery string, and has a compact structure and high welding strip arrangement accuracy, and is compatible with the welding strips required for the AB string of BC battery cells and battery strings with different numbers of sheets. The present invention discloses a welding strip preparation mechanism for BC battery cells and an intermediate clamping and cutting structure in a series connection machine. The mechanism is composed of a gear rack motion mechanism, a welding strip clamping structure and a welding strip cutting structure. The mechanism is flexible in assembly and disassembly, and is convenient for workers to switch the battery assembly version. The welding strip clamping structure and the welding strip cutting structure of the welding strip are modularly designed and then integrated and installed on the welding strip preparation mechanism, so that the mechanism has the characteristics of compact structure and high space utilization. The arrangement of multiple welding strips is achieved through a rack and multiple gears, which can reduce the cost of the structure while ensuring the arrangement accuracy. The welding strip cutting structure adopts a double cylinder structure design, that is, a push-pull cylinder drives a clamping head to clamp the welding strip to prevent twisting or deformation during the cutting process of the flat welding strip, and a lifting cylinder drives a cutting head to cut the welding strip. At the same time, the guidance of the cutting head is controlled by a needle bearing and the internal contour of the cutting head, so that the welding strip cutting structure has the characteristics of compact structure and high reliability. 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 strip preparation mechanism applied to BC battery cells of the present invention, including a welding strip preparation component and a welding strip cutting component; Figure 2 yes Figure 1The three-dimensional structural schematic diagram of the welding strip preparation assembly shown includes a first end clamping and cutting mechanism, a middle clamping and cutting structure, and a second end clamping mechanism; Figure 3 yes Figure 2 A schematic diagram of a partial exploded structure of the first end clamping and cutting mechanism shown, including a clamping structure and a cutting structure; Figure 4 yes Figure 3 A schematic diagram of the three-dimensional structure of the clamping structure shown; Figure 5 yes Figure 3 A schematic diagram of the three-dimensional structure of the cut-off structure shown; Figure 6 yes Figure 3 A schematic diagram of a partial explosion structure of the cut-off structure shown; Figure 7 yes Figure 2 A schematic diagram of a partial explosion structure of the intermediate clamping and cutting structure shown; Figure 8 yes Figure 2 A schematic structural diagram of the second end clamping mechanism shown; Fig. 9 yes Figure 1 The three-dimensional structural diagram of the welding ribbon cutting component is shown. Indications in the figure: 100, welding strip preparation mechanism; 10, translation assembly; 20, welding strip preparation assembly; 21, sliding mechanism; 211, sliding table body; 212, guide rail; 213, rack; 22, first end clamping and cutting mechanism; 221, first support frame; 222, first clamping structure; 2221, first fixed seat; 2222, first clamping jaw assembly; 22221, first lifting cylinder; 22222, welding strip clamping jaw mechanism; 22223, guide shaft; 22224, support limit plate; 2223, second clamping jaw assembly; 223, first cutting structure; 2231, second fixed seat; 22311, fixed seat body; 22312, cover plate; 2232, push-pull cylinder; 223 3. Second lifting cylinder; 2234. Clamping blade; 22341. Limiting member; 2235. Cutting blade; 2236. Pressing block; 2237. Needle bearing; 2238. Clamping member; 23. Intermediate clamping and cutting structure; 231. First sliding frame; 232. First rotating motor; 233. First gear; 234. Second clamping structure; 235. Second cutting structure; 236. Third clamping structure; 237. Third cutting structure; 24. Second end clamping mechanism; 241. Second sliding frame; 242. Second rotating motor; 243. Second gear; 244. Fourth clamping structure; 30. Welding strip cutting assembly; 31. Third supporting frame; 32. Adjusting block; 33. Fourth cutting structure. DETAILED DESCRIPTION

[0017] 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.

[0018] 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.

[0019] See also Figure 1 As shown, a welding strip preparation mechanism 100 for BC battery cells of the present invention is mainly used in the welding strip preparation process of adjacent BC battery strings, which includes a translation assembly 10, a welding strip preparation assembly 20 and a welding strip cutting assembly 30; the translation assembly 10 is a transmission body; the welding strip preparation assembly 20 is transmission-set on the translation assembly 10, and the translation assembly 10 drives the welding strip preparation assembly 20 to reciprocate thereon; the welding strip cutting assembly 30 is fixedly set on one side of the welding strip preparation assembly 20, and it performs synchronous cutting operations on multiple welding strips. Specifically, the translation assembly 10 adopts a linear module.

[0020] See also Figure 1 and Figure 2 As shown, the solder strip preparation assembly 20 includes a sliding mechanism 21, a first end clamping and cutting mechanism 22, a plurality of intermediate clamping and cutting structures 23 and a second end clamping mechanism 24; the sliding mechanism 21 is transmission-connected to the translation assembly 10, and the translation assembly 10 drives the sliding mechanism 21 to reciprocate thereon; the first end clamping and cutting mechanism 22 is fixedly arranged on the sliding mechanism 21 and close to one side of the solder strip cutting assembly 30, and it can clamp and cut multiple solder strips synchronously; a plurality of intermediate clamping and cutting structures 23 and a second end clamping mechanism 24 are sequentially arranged on the sides of the first end clamping and cutting mechanism 22 and can be movably arranged on the sliding mechanism 21 respectively, the intermediate clamping and cutting structures 23 can clamp and cut multiple solder strips synchronously, and the second end clamping mechanism 24 can clamp multiple solder strips synchronously. In this embodiment, four intermediate clamping and cutting structures 23 are sequentially arranged between the first end clamping and cutting mechanism 22 and the second end clamping mechanism 24 and can be movably arranged on the sliding mechanism 21 respectively; in other embodiments, the number of the intermediate clamping and cutting structures 23 can be two, three, five or other plurality, and the number can be set according to actual needs.

[0021] See also Figure 1 and Figure 2 As shown, in this embodiment, the sliding mechanism 21 includes a sliding platform body 211, a guide rail 212 and a rack 213; the sliding platform body 211 is transmission-connected to the translation assembly 10, and the first end clamping and cutting mechanism 22 is fixedly arranged on one end of the sliding platform body 211; the guide rail 212 is laterally fixedly arranged on the sliding platform body 211, and a plurality of intermediate clamping and cutting structures 23 and a second end clamping mechanism 24 are respectively slidably arranged on the guide rail 212, and the reciprocating motion of the intermediate clamping and cutting structure 23 and the second end clamping mechanism 24 is guided and limited by the guide rail 212; the rack 213 is fixedly arranged on the side of the sliding platform body 211 and is arranged parallel to the guide rail 212, and a plurality of intermediate clamping and cutting structures 23 and the second end clamping mechanism 24 are respectively meshed and transmission-connected with the rack 213, thereby realizing the movement of the intermediate clamping and cutting structure 23 and the second end clamping mechanism 24 relative to the sliding platform body 211.

[0022] See also Figure 2 and Figure 3 As shown, in this embodiment, the first end clamping and cutting mechanism 22 includes a first support frame 221, a first clamping structure 222 and a first cutting structure 223; the first support frame 221 is fixedly arranged on one end of the sliding table body 211; the first clamping structure 222 and the first cutting structure 223 are fixedly arranged on the first support frame 221 in sequence, and the first clamping structure 222 and the first cutting structure 223 are used to clamp and cut multiple welding strips respectively.

[0023] See also Figure 3 and Figure 4As shown, in this embodiment, the first clamping structure 222 includes a first fixed seat 2221, a first clamping jaw assembly 2222 and a second clamping jaw assembly 2223; the first fixed seat 2221 is fixedly arranged on the first support frame 221; the first clamping jaw assembly 2222 and the second clamping jaw assembly 2223 are sequentially arranged on the first fixed seat 2221, and both of them can clamp multiple welding strips at the same time. Specifically, the first clamping jaw assembly 2222 includes a first lifting cylinder 22221, a welding strip clamping jaw mechanism 22222, two guide shafts 22223 and a support and limit plate 22224; the first lifting cylinder 22221 is fixedly arranged on the first fixed seat 2221; the welding strip clamping jaw mechanism 22222 is movably arranged on the first fixed seat 2221 and is transmission-connected with the first lifting cylinder 22221, and the first lifting cylinder 22221 drives the welding strip clamping jaw mechanism 22222 to clamp or release multiple welding strips; the two guide shafts 22223 are respectively fixedly arranged at both ends of the welding strip clamping jaw mechanism 22222 and movably penetrate the first fixed seat 2221, and the longitudinal movement of the welding strip clamping jaw mechanism 22222 is guided and limited by the two guide shafts 22223; the support and limit plate 22224 is fixedly arranged on the side of the welding strip clamping jaw mechanism 22222, which supports and limits multiple welding strips. Specifically, the welding strip clamping mechanism 22222 includes a transmission rod and a plurality of clamping structures. The transmission rod is transmission-connected to the first lifting cylinder 22221. The plurality of clamping structures are sequentially arranged on the transmission rod and respectively pass through the first fixed seat 2221. The first lifting cylinder 22221 synchronously drives the plurality of clamping structures to perform clamping or releasing operations through the transmission rod.

[0024] See also Figure 3 and Figure 4 As shown, specifically, the structure of the second clamping jaw assembly 2223 is the same as that of the first clamping jaw assembly 2222, so its specific structure is not repeated here.

[0025] See also Figure 3 , Figure 5 and Figure 6As shown, in this embodiment, the first cutting structure 223 includes a second fixed seat 2231, a push-pull cylinder 2232, a second lifting cylinder 2233, a clamping head 2234, a cutting head 2235, a pressure block 2236, a plurality of needle bearings 2237 and a plurality of clamping members 2238; the second fixed seat 2231 is fixedly arranged on the first support frame 221; the push-pull cylinder 2232 and the second lifting cylinder 2233 are respectively fixedly arranged on the second fixed seat 2231; the clamping head 2234 and the cutting head 2235 are respectively movably arranged on the second fixed seat 2231 and are respectively transmission-connected with the push-pull cylinder 2232 and the second lifting cylinder 2233; the push-pull cylinder 2232 drives the clamping head 2234 to move laterally, Thereby, a plurality of welding strips are pressed and the cutting operation of the cutting head 2235 is facilitated. The second lifting cylinder 2233 drives the cutting head 2235 to move upward, thereby cutting the plurality of welding strips. The pressing block 2236 is arranged on the side of the cutting head 2235. A plurality of needle bearings 2237 respectively penetrate the pressing head 2234, the cutting head 2235 and the pressing block 2236 in sequence, and guide the movement of the pressing head 2234 and the cutting head 2235 respectively. A plurality of pressing members 2238 respectively penetrate the pressing block 2236 and the two ends thereof are respectively in contact and connected with the inner wall of the cutting head 2235 and the second fixed seat 2231, and press the cutting head 2235 and the pressing head 2234 in sequence. Specifically, the second fixed seat 2231 includes a fixed seat body 22311 and a cover plate 22312, the cover plate 22312 is detachably fixedly connected to the fixed seat body 22311, one end of a plurality of needle bearings 2237 are respectively penetrated and arranged on the cover plate 22312, one end of a plurality of clamping members 2238 are contacted and connected with the inner wall of the cover plate 22312; a plurality of hooks are sequentially arranged on the upper end of the clamping tool head 2234, and a plurality of welding strips are clamped respectively by the plurality of hooks; the clamping member 2238 adopts a spring.

[0026] See also Figure 2 and Figure 7As shown, in this embodiment, the intermediate clamping and cutting structure 23 includes a first sliding frame 231, a first rotating motor 232, a first gear 233, a second clamping structure 234, a second cutting structure 235, a third clamping structure 236 and a third cutting structure 237; the first sliding frame 231 is slidably arranged on the guide rail 212, and can move relative to the sliding table body 211; the first rotating motor 232 is fixedly arranged on the first sliding frame 231, and can rotate forward and reverse, thereby driving the first sliding frame 231 to perform linear reciprocating motion relative to the sliding table body 211; the first gear 233 is fixedly arranged on the first rotating motor The first rotating motor 232 is on the output shaft of the machine 232 and is meshed with the rack 213 for transmission connection. The first rotating motor 232 drives the first gear 233 to rotate on the rack 213, thereby driving the first sliding frame 231 to move relative to the sliding table body 211; the second clamping structure 234, the second cutting structure 235, the third clamping structure 236 and the third cutting structure 237 are sequentially arranged on the first sliding frame 231, the second clamping structure 234 and the third clamping structure 236 can respectively clamp or release multiple welding strips, and the second cutting structure 235 and the third cutting structure 237 can respectively cut multiple welding strips. Specifically, the first rotating motor 232 is a servo motor, so as to ensure the movement accuracy of the first sliding frame 231; the structures of the second clamping structure 234 and the third clamping structure 236 are similar to those of the first clamping structure 222, so the specific structures of the two are not described here; the structures of the second cutting structure 235 and the third cutting structure 237 are similar to those of the first cutting structure 223, so the specific structures of the two are not described here. In other embodiments, the number of the clamping structures and the cutting structures can also be one, three, four or other plurality at the same time.

[0027] See also Figure 2 and Figure 8As shown, in this embodiment, the second end clamping mechanism 24 includes a second sliding frame 241, a second rotating motor 242, a second gear 243 and two fourth clamping structures 244; the second sliding frame 241 is slidably set on the guide rail 212, and it can move relative to the sliding table body 211; the second rotating motor 242 is fixedly set on the second sliding frame 241, and it can rotate forward and reverse, thereby driving the second sliding frame 241 to make a linear reciprocating motion relative to the sliding table body 211; the second gear 243 is fixedly set on the output shaft of the second rotating motor 242 and is meshed and connected with the rack 213, and the second rotating motor 242 drives the second gear 243 to rotate on the rack 213, thereby driving the second sliding frame 241 to move relative to the sliding table body 211; the two fourth clamping structures 244 are sequentially arranged on the second sliding frame 241, and both of them simultaneously clamp or release the head ends of multiple welding strips. Specifically, the second rotating motor 242 is a servo motor, so as to ensure the movement accuracy of the second sliding frame 241; the structure of the fourth clamping structure 244 is similar to that of the first clamping structure 222, so its specific structure is not described here. In other embodiments, the number of the fourth clamping structures 244 can be three, four or other multiples, and the specific number can be set according to actual needs.

[0028] See also Figure 1 and Fig. 9 As shown, in this embodiment, the welding ribbon cutting assembly 30 includes a third support frame 31, two adjustment blocks 32 and a fourth cutting structure 33; the third support frame 31 is fixedly arranged on one side of the first end clamping cutting mechanism 22; the two adjustment blocks 32 are symmetrically and adjustably arranged on the third support frame 31; the two ends of the fourth cutting structure 33 are respectively fixedly arranged on the third support frame 31 through corresponding adjustment blocks 32, and the position of the fourth cutting structure 33 on the third support frame 31 is adjusted by the two adjustment blocks 32. Specifically, the structure of the fourth cutting structure 33 is similar to that of the first cutting structure 223, so its specific structure is not repeated here.

[0029] The present invention provides a series connection machine for BC battery cells, comprising a welding strip laying device, the welding strip laying device comprising any of the above welding strip preparation mechanisms 100, the welding strip preparation mechanism 100 clamping, cutting and arranging welding strips required for the AB series of BC battery cells; 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.

[0030] It should be noted that the specific working process of the solder strip preparation mechanism and the series connection machine applied to BC battery cells of the present invention is: when the solder strip pulling mechanism pulls multiple solder strips onto the solder strip preparation component 20, the first clamping structure 222, the second clamping structure 234, the third clamping structure 236, and the fourth clamping structure 244 on the solder strip preparation component 20 simultaneously clamp the multiple solder strips, and then the fourth cutting structure 33 on the solder strip cutting component 30 simultaneously cuts the tails of the multiple solder strips, and then the first cutting structure 223, the second cutting structure 235, and the third cutting structure 237 on the solder strip preparation component 20 simultaneously cut the multiple fixed solder strips, and then the first rotating motor 232 and the second rotating motor 242 respectively drive the first gear 233 and the second gear 243 to move on the rack 213, so as to displace and arrange the multiple cut solder strips, and finally the translation component 10 transfers the multiple arranged solder strips as a whole to the bottom of the solder strip conveying mechanism, thereby completing the solder strip preparation.

[0031] 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.

[0032] 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 welding strip preparation mechanism for BC battery cells, characterized in that: include: Translation component; A welding strip preparation assembly, the transmission of which is arranged on the translation assembly; A solder strip cutting assembly, which is fixedly arranged on one side of the solder strip preparation assembly; Among them, the solder strip preparation assembly includes a sliding mechanism, which is transmission-connected to the translation assembly; a first end clamping and cutting mechanism fixedly arranged on the sliding mechanism and close to one side of the solder strip cutting assembly; a plurality of intermediate clamping and cutting structures and a second end clamping mechanism which are sequentially arranged on the sides of the first end clamping and cutting mechanism and can be movably arranged on the sliding mechanism respectively.

2. A welding strip preparation mechanism for BC battery cells according to claim 1, characterized in that: The sliding mechanism includes a sliding table main body, which is transmission-connected to the translation assembly; a guide rail transversely fixedly arranged on the sliding table main body, and a plurality of the intermediate clamping and cutting structures and the second end clamping mechanism are respectively slidably arranged on the guide rail; a rack fixedly arranged on the side of the sliding table main body and arranged parallel to the guide rail, and a plurality of the intermediate clamping and cutting structures and the second end clamping mechanism are respectively meshed and transmission-connected with the rack.

3. A welding strip preparation mechanism for BC battery cells according to claim 2, characterized in that: The first end clamping and cutting mechanism comprises a first support frame, which is fixedly arranged on the sliding platform body and on one end close to the welding ribbon cutting assembly; a first clamping structure and a first cutting structure are fixedly arranged on the first support frame in sequence.

4. A welding strip preparation mechanism for BC battery cells according to claim 3, characterized in that: The first clamping structure includes a first fixing seat fixedly disposed on the first supporting frame; a first clamping jaw assembly and a second clamping jaw assembly sequentially disposed on the first fixing seat.

5. A welding strip preparation mechanism for BC battery cells according to claim 4, characterized in that: The first clamping assembly and the second clamping assembly include a first lifting cylinder, a welding strip clamping mechanism, two guide shafts and a support limit plate; the first lifting cylinder is fixedly arranged on the first fixed seat; the welding strip clamping mechanism is movably arranged on the first fixed seat and is transmission-connected with the first lifting cylinder; the two guide shafts are respectively fixedly arranged at the two ends of the welding strip clamping mechanism and movably pass through the first fixed seat; the support limit plate is fixedly arranged on the side of the welding strip clamping mechanism.

6. The welding strip preparation mechanism for BC battery cells according to claim 3, characterized in that: The first cutting structure includes a second fixed seat, which is fixedly set on the first supporting frame; a push-pull cylinder and a second lifting cylinder are respectively fixedly set on the second fixed seat; a pressing head and a cutting head are respectively movably set on the second fixed seat and are respectively connected to the push-pull cylinder and the second lifting cylinder; the push-pull cylinder drives the pressing head to move horizontally to press multiple welding strips; the second lifting cylinder drives the cutting head to move upward to cut multiple welding strips.

7. A welding strip preparation mechanism for BC battery cells according to claim 6, characterized in that: The first cutting structure also includes a pressure block, which is arranged on the side of the cutting head; a plurality of needle bearings respectively passing through the clamping head, the cutting head, and the pressure block in sequence; and a plurality of clamping members respectively passing through the pressure block, and the two ends of the clamping members are respectively in contact and connected with the inner wall of the cutting head and the second fixed seat.

8. The welding strip preparation mechanism for BC battery cells according to claim 2, characterized in that: The intermediate clamping and cutting structure comprises a first sliding frame, which is slidably arranged on the guide rail; a first rotating motor fixedly arranged on the first sliding frame, which can rotate forward and reverse; a first gear fixedly arranged on the output shaft of the first rotating motor and meshingly connected with the rack; At least one clamping structure and at least one cutting structure are respectively arranged on the first sliding frame.

9. The welding strip preparation mechanism for BC battery cells according to claim 2, characterized in that: The second end clamping mechanism includes a second sliding frame, which is slidably set on the guide rail; a second rotating motor fixedly set on the second sliding frame, which can rotate forward and reverse; a second gear fixedly set on the output shaft of the second rotating motor and meshingly connected to the rack; and a plurality of fourth clamping structures sequentially arranged on the second sliding frame.

10. A series connection machine for BC cells, characterized in that: It comprises a welding strip laying device, the welding strip laying device comprises the welding strip preparation mechanism according to any one of claims 1 to 9, the welding strip preparation mechanism performs clamping, cutting and arranging operations on the welding strips required for the AB string of BC battery cells; 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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