Expansion structure of series welding machine

Abstract

The invention provides a series welding machine expansion structure which comprises a series welding machine and further comprises an expansion terminal welding part, and the expansion terminal welding part is connected with the discharging rear end of the series welding machine through a series cutting module. According to the series welding machine extension structure, the series welding machine and the terminal welding machine are in extensive connection through the series cutting module, various functions of series welding of BC battery pieces and conventional battery pieces, film pasting in the middle of the battery pieces, welding of bus bars at the ends of battery strings and the like can be achieved through various modules such as the 36BB multi-welding-strip series welding machine, the terminal welding machine and adhesive tape film pasting, the functions are rich, the application range is wider, and the application range is wider. And customized module splicing can be carried out according to needs.

Description

Technical Field

[0001] The invention belongs to the technical field of solar cell processing, and in particular relates to an expansion structure of a string welding machine. Background Art

[0002] The voltage of a single solar cell is about 0.5V, which is far lower than the voltage required for actual use. Therefore, they need to be connected in series or in parallel, and then the cells are sealed to form a photovoltaic module. Each conventional solar module contains 60 or 72 cells, and these cells need to be welded together in series every 10 or 12 cells, and the string welding machine is the core equipment for welding the cells together.

[0003] In the past, the welding of battery strings was done manually, with manual control of welding time and welding pressure, resulting in low production efficiency and difficulty in ensuring quality. With the development of technology, string welding machines have begun to be automated, leaving the welding process to machines. This not only improves production efficiency, but also greatly improves welding quality and stability. Traditional string welding machines are divided into front and back ends, but their functions are relatively simple and their scalability is insufficient.

[0004] Based on this, the present invention provides an expansion structure of a string welding machine, which can realize various additional functions such as string welding machine, terminal welding, tape laminating, etc. through layout optimization and reorganization of various modules, and has a wider range of applications. Summary of the invention

[0005] The purpose of the present invention is to provide an expansion structure of a string welding machine to solve the shortcomings of the string welding machine in the prior art, that is, the string welding machine has a single function and low scalability.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0007] A string welding machine expansion structure, characterized in that it includes a string welding machine and an expansion terminal welding machine, wherein the expansion terminal welding machine is connected to the discharging rear end of the string welding machine through a string cutting module;

[0008] The string cutting module includes a cutting component and a length adjustment component; the length adjustment component includes a base, a first fixed frame, a first bracket, a first conveyor belt, a first slide rail, a screw and a first motor; the first fixed frame is fixed on the base, a roller is provided on the first fixed frame, and the first conveyor belt is sleeved on the roller; the bottom of the first bracket is movably connected to the first slide rail, so that the first bracket can move back and forth on the first slide rail; the first motor output shaft is fixedly connected to the screw, and the screw is transmission-connected to the first bracket; the cutting component is fixed on the first bracket.

[0009] Furthermore, the first bracket is fixedly connected to a fixing member, the fixing member is fixedly connected to a roller, and the first conveyor belt is sleeved on the roller so that the first conveyor belt transmission bypasses the cutter. Through such an arrangement, the cutting assembly can cut the welding strip and the cutting length can be adjusted without affecting each other.

[0010] In the present invention, the cutting assembly includes a cutter, a support and a first cylinder, wherein the first cylinder is fixed on the top of the first bracket and is transmission-connected to the cutter; the support is fixed on the fixing member and is located below the cutter, and cooperates with the cutter to cut the welding strip.

[0011] Furthermore, the first bracket is fixed with a second slide rail, and the cutter is slidably connected to the second slide rail. The cutter is fixed by the second slide rail, so that the cutter can cut the welding strip more stably.

[0012] In the present invention, the string cutting module further comprises an elastic member, and both ends of the elastic member are fixed in slots on the first fixing frame. The elastic member is used to adjust the tightness of the first conveyor belt.

[0013] The present invention can be improved as follows: the extended terminal welding includes a busbar clamping assembly, an adsorption conveyor belt and a terminal welding mechanism; one end of the adsorption conveyor belt is provided with a busbar clamping assembly, and the other end is provided with a terminal welding mechanism.

[0014] Furthermore, the busbar clamping assembly comprises a guide rail and a busbar clamp, and the busbar clamp is fixed on the guide rail.

[0015] Furthermore, two busbar clips are provided.

[0016] Furthermore, the busbar clamping assembly further comprises a pressure needle module, and the pressure needle module is arranged facing the adsorption conveyor belt.

[0017] In the present invention, the terminal welding mechanism includes a base plate, a movable plate, a welding joint, a second bracket and a second cylinder; the base plate is fixed on the second bracket, the second cylinder is fixed on the base plate through a mounting plate, the second cylinder is fixedly connected to the movable plate, and the welding joint is fixed on the movable plate.

[0018] Furthermore, the push rod of the second cylinder is fixedly connected to the first slider, and the first slider is fixedly connected to the moving plate.

[0019] Furthermore, a third slide rail is fixed on the base plate, and the first slider is slidably connected to the third slide rail. By arranging in this way, the movement of the movable plate is made more stable.

[0020] The present invention also includes a string taking module, which includes a second conveyor belt, a first translation mechanism and an adsorption component; the second conveyor belt is connected to the string cutting module, the first translation mechanism is fixed on the frame, the first translation mechanism includes an X-axis translation component and a Y-axis translation component, and the adsorption component is fixed on the first translation mechanism, so that the adsorption component absorbs the battery string and then moves to the adsorption conveyor belt through the first translation mechanism.

[0021] The present invention can also be improved as follows: the extended terminal welding further includes a single-sided bus coil assembly, the single-sided bus coil assembly is fixed on the frame and is located above the bus strip clamping assembly.

[0022] The present invention can be further improved, the string welding machine includes a lampshade welding module and a transmission soldering station module, the output end of the transmission soldering station module is connected to the input end of the string cutting module, and the lampshade welding module is located above the transmission soldering station module.

[0023] Furthermore, the transmission soldering station module includes a conveyor belt, a heating plate, a fan and a second motor; the conveyor belt is connected to the second motor in a transmission manner, and both the conveyor belt and the heating plate are provided with adsorption holes. The heating plate is arranged below the conveyor belt, and the fan exhausts air so that the battery string is close to the conveyor belt during the conveying process. With this arrangement, the heating plate is used to preheat the battery cell before welding, which can reduce the stress generated by temperature changes inside the battery cell. The fan exhausts air to form a negative pressure, which can suck the battery cell tightly during the conveying process of the battery string to prevent the battery cell or the soldering belt from shifting.

[0024] Furthermore, it also includes a guide groove plate, which is arranged at the input end of the transmission soldering station module. The guide groove plate is provided with a groove matching the soldering strip for positioning the soldering strip.

[0025] Furthermore, the lampshade welding module includes a steel wire welding plate lifting assembly, a heating assembly, a second fixed frame and a third cylinder; the second fixed frame is fixed on the machine platform, the heating assembly is movably connected to the third cylinder, and the heating assembly is slidably connected to the second fixed frame, so that the heating assembly can move up and down along the second fixed frame; the steel wire welding plate lifting assembly is slidably connected to the second fixed frame and is located below the heating assembly.

[0026] Furthermore, a fourth slide rail is arranged on the second fixed frame, the heating component is provided with a second slider, the wire welding plate lifting component is provided with a third slider, and the heating component and the wire welding plate lifting component are slidably connected to the fourth slide rail through the second slider and the third slider respectively.

[0027] The present invention can be further improved and further includes a welding strip arrangement module, the welding strip arrangement module includes a guide roller, a first clamping assembly, a second clamping assembly, a cutting assembly and an arrangement table; the guide roller is fixed to the input end of the arrangement table, and the cutting assembly is fixed to the output end of the arrangement table; the first clamping assembly is slidably connected to the machine table through a fifth slide rail, and the second clamping assembly is slidably connected to the machine table through a fifth slide rail. In the present invention, the cutting assembly is used to cut the welding strip, and the first clamping assembly and the second clamping assembly are used to clamp the welding strip to facilitate the welding strip traction module to traction a single (or double) welding strip, and the length of the welding strip cutting can be set and adjusted.

[0028] Furthermore, the solder strip arrangement module also includes a transfer table, and the transfer table is connected to an output end of the arrangement table.

[0029] Furthermore, the string welder also includes a weld ribbon traction module, which includes a weld ribbon clamp assembly and a first movable track. The weld ribbon clamp assembly is transmission-connected to the first movable track so that the weld ribbon clamp assembly pulls the weld ribbon from the weld ribbon sorting module to the transmission soldering station module.

[0030] Furthermore, the welding strip clamp assembly is fixed on the fourth slider, and is slidably connected to the sixth slide rail via the fourth slider, and the first crawler is transmission-connected to the fourth slider.

[0031] Furthermore, two soldering ribbon clip assemblies are provided, which are respectively arranged on both sides of the soldering ribbon sorting module and the soldering station transmission module.

[0032] In the present invention, the string welding machine also includes a battery cell loading assembly, which includes a loading and conveying module, a second translation mechanism, a transmission module and a battery cell picking position; the loading and conveying module and the transmission module are arranged side by side; the second translation mechanism is arranged above the loading and conveying module and the transmission module, and is used to transfer the battery cell from the loading and conveying module to the transmission module; the battery cell picking position is connected to the output end of the transmission module.

[0033] Furthermore, it also includes a battery cell positioning module, which is fixed on the transmission module. The battery cell positioning module is provided with two limiting plates which are arranged in parallel and opposite to each other, and the battery cell is positioned by the limiting plates.

[0034] The present invention also includes a robot module, which is arranged between the battery cell loading assembly and the transmission soldering station module and is used to transfer the battery cells on the battery cell taking position to the transmission soldering station module.

[0035] The present invention also includes a solder tape roll module, which is arranged in front of the input end of the solder tape arrangement module and is used to transport the solder tape into the solder tape arrangement module.

[0036] The present invention has the following beneficial effects:

[0037] (1) The extended structure of the string welding machine of the present invention connects the string welding machine and the terminal welding in an extendable manner through the string cutting module, which can realize various additional functions such as the string welding machine, terminal welding, tape laminating, etc. It has rich functions and a wider range of applications, and can be customized according to needs. Module splicing.

[0038] (2) The modular stringer of the stringer extended structure of the present invention arranges, optimizes and reorganizes the position space of each module, making the overall device more compact and compatible with the welding of battery cells of various specifications from 3BB to 36BB. After optimization, the compatibility and scalability of the overall device are greatly improved.

[0039] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the overall structure of the extended structure of the string welding machine of the present invention;

[0041] Figure 2 It is a front view of the extended structure of the string welding machine of the present invention;

[0042] Figure 3 A bottom view of the extended structure of the string welding machine of the present invention;

[0043] Figure 4 It is a schematic diagram of the overall structure of the string cutting module of the present invention;

[0044] Figure 5 It is a front view of the string cutting module of the present invention;

[0045] Figure 6 A top view of the string cutting module of the present invention;

[0046] Figure 7 It is a right side view of the string cutting module of the present invention;

[0047] Figure 8 This is a front view of the extended terminal welding of the present invention;

[0048] Fig. 9 It is a left side view of the extended terminal welding of the present invention;

[0049] Fig.10 It is a bottom view of the extended terminal welding of the present invention;

[0050] Fig.11 It is a schematic diagram of the overall structure of the terminal welding mechanism of the present invention;

[0051] Fig.12 It is a front view of the terminal welding mechanism of the present invention;

[0052] Fig.13 It is a schematic diagram of the overall structure of the busbar clamping assembly of the present invention;

[0053] Fig.14 It is a schematic diagram of the overall structure of the main body of the string welding machine of the present invention;

[0054] Fig.15 It is a schematic diagram of the overall structure of the welding strip finishing module of the present invention;

[0055] Fig.16 This is a front view of the solder strip finishing module of the present invention;

[0056] Fig.17 A bottom view of the solder strip finishing module of the present invention;

[0057] Fig.18 It is a schematic diagram of the overall structure of the welding strip pulling module of the present invention;

[0058] Fig.19 It is a schematic diagram of the overall structure of the lampshade welding module of the present invention;

[0059] Fig. 20 This is a front view of the lampshade welding module of the present invention;

[0060] Fig.21 This is one of the overall structural schematic diagrams of the transmission soldering station module of the present invention;

[0061] Fig. 22 This is the second schematic diagram of the overall structure of the transmission soldering station module of the present invention;

[0062] Fig.23 It is a schematic diagram of the overall structure of the battery cell feeding assembly of the present invention;

[0063] The markings in the attached drawings are as follows: 1. Stringer; 2. Extended terminal welding; 3. String cutting module; 11. Welding ribbon winding module; 12. Welding ribbon sorting module; 13. Welding ribbon pulling module; 14. Transmission welding station module; 15. Lampshade welding module; 16. Battery cell feeding assembly; 17. Robot module; 1201. Guide roller; 1202. First clamping assembly; 1203. Second clamping assembly; 1204. Cutting assembly; 1205. Sorting table; 1206. To-be-transferred table; 1207. Fifth slide rail; 1301. Welding ribbon clamp assembly; 1302. First Mobile crawler; 1303, fourth slider; 1304, sixth slide rail; 1401, conveyor belt; 1402, heating plate; 1403, fan; 1404, second motor; 1405, guide plate; 1501, wire welding plate lifting assembly; 1502, heating assembly; 1503, second fixed frame; 1504, third cylinder; 1505, fourth slide rail; 1506, second slider; 1507, third slider; 1601, feeding and conveying module; 1602, second translation mechanism; 1603, transmission module; 1604, battery cell taking position; 1605, cell positioning module; 21, rack; 22, string taking module; 23, single-sided bus coil assembly; 24, bus bar clamping assembly; 25, adsorption conveyor belt; 26, terminal welding mechanism; 27, cell alignment module; 28, discharge area; 2201, second conveyor belt; 2202, first translation mechanism; 2203, adsorption assembly; 2401, guide rail; 2402, bus bar clamp; 2403, pin pressing module; 2601, substrate; 2602, moving plate; 2603, welding joint; 2604, second bracket; 2605, The second cylinder; 2606, mounting plate; 2607, first slider; 2608, third slide rail; 31, cutting assembly; 32, length adjustment assembly; 3101, cutter; 3102, support member; 3103, first cylinder; 3104, second slide rail; 3201, base; 3202, first fixed frame; 3203, first bracket; 3204, first conveyor belt; 3205, first slide rail; 3206, screw rod; 3207, first motor; 3208, fixing member; 3209, roller; 3210, elastic member; 3211, slot. DETAILED DESCRIPTION

[0064] The technical solution of the present invention is further described below in conjunction with specific embodiments, so that those skilled in the art can better understand the technical solution of the present invention and implement it.

[0065] like Figure 1-23 The extended structure of the stringer shown includes a stringer 1 and an extended terminal welder 2 , and the extended terminal welder 2 is connected to the discharge rear end of the stringer 1 through a string cutting module 3 .

[0066] The string cutting module 3 includes a cutting assembly 31 and a length adjustment assembly 32. The length adjustment assembly 32 includes a base 3201, a first fixed frame 3202, a first bracket 3203, a first conveyor belt 3204, a first slide rail 3205, a screw rod 3206 and a first motor 3207; the first fixed frame 3202 is fixed on the base 3201, a roller 3209 is arranged on the first fixed frame 3202, and the first conveyor belt 3204 is sleeved on the roller 3209; the bottom of the first bracket 3203 is movably connected with the first slide rail 3205, so that the first bracket 3203 can move back and forth on the first slide rail 3205; the output shaft of the first motor 3207 is fixedly connected with the screw rod 3206, and the screw rod 3206 is in transmission connection with the first bracket 3203; the cutting assembly 31 is fixed on the first bracket 3203. In this embodiment, in order to enable the cutting component 31 to cut the welding strip, the cutting length can also be adjusted. The first bracket 3203 is fixedly connected to a fixing member 3208, and a roller 3209 is fixedly connected to the fixing member 3208. The first conveyor belt 3204 is sleeved on the roller 3209, so that the first conveyor belt 3204 transmits and bypasses the cutter 3101.

[0067] The cutting assembly 31 includes a cutter 3101, a support member 3102 and a first cylinder 3103. The first cylinder 3103 is fixed on the top of the first bracket 3203, and the first cylinder 3103 is connected to the cutter 3101 by transmission. The support member 3102 is fixed on the fixing member 3208 and is located below the cutter 3101, and cooperates with the cutter 3101 to cut the welding strip. In this embodiment, the first bracket 3203 is fixed with two second slide rails 3104, and the two ends of the cutter 3101 are respectively connected to a second slide rail 3104 for sliding. The cutter 3101 is limited and fixed by the second slide rail 3104, so that the cutter 3101 can cut the welding strip more smoothly.

[0068] The string cutting module 3 further includes an elastic member 3210, and both ends of the elastic member 3210 are fixed in slots 3211 on the first fixing frame 3202. The elastic member 3210 is used to adjust the tightness of the first conveyor belt 3204.

[0069] The extended terminal welding machine 2 in the present invention comprises a frame 21 , a string taking module 22 , a single-side bus coil assembly 23 , a bus belt clamping assembly 24 , an adsorption conveyor belt 25 and a terminal welding mechanism 26 .

[0070] The string taking module 22 includes a second conveyor belt 2201, a first translation mechanism 2202 and an adsorption component 2203; the second conveyor belt 2201 is connected to the output end of the string cutting module 3, the first translation mechanism 2202 is fixed on the frame 21, the first translation mechanism 2202 includes an X-axis translation component and a Y-axis translation component, and the adsorption component 2203 is fixed on the first translation mechanism 2202, so that the adsorption component 2203 absorbs the battery string and moves to the adsorption conveyor belt 25 through the first translation mechanism 2202.

[0071] The adsorption conveyor belt 25 is arranged on the side of the second conveyor belt 2201, and the two are arranged in parallel, so as to facilitate the string module 22 to transfer the battery string to the adsorption conveyor belt 25. The input end of the adsorption conveyor belt 25 is provided with a busbar clamping assembly 24, and the output end is provided with a terminal welding mechanism 26.

[0072] The busbar clamping assembly 24 includes a guide rail 2401, a busbar clamp 2402 and a pressure pin module 2403. Two busbar clamps 2402 are provided, which are respectively fixed on the guide rail 2401, and the busbar clamps 2402 can move back and forth on the guide rail 2401. The pressure pin module 2403 is arranged opposite to the adsorption conveyor belt 25. The single-sided busbar roll assembly 23 is fixed on the frame 21 and is located above the busbar clamping assembly 24. The present invention transfers the welding strip clamping in the single-sided busbar roll assembly 23 to the battery string of the adsorption conveyor belt 25 through the busbar clamping assembly 24.

[0073] The terminal welding mechanism 26 includes a base plate 2601, a movable plate 2602, a welding joint 2603, a second bracket 2604 and a second cylinder 2605; the base plate 2601 is fixed on the second bracket 2604, the second cylinder 2605 is fixed on the base plate 2601 through a mounting plate 2606, the push rod of the second cylinder 2605 is fixedly connected to the first slider 2607, the first slider 2607 is fixedly connected to the movable plate 2602, and the welding joint 2603 is fixed to the movable plate 2602. In this embodiment, a third slide rail 2608 is fixed on the base plate 2601, and the first slider 2607 is slidably connected to the third slide rail 2608. By setting it in this way, the movement of the movable plate 2602 is more stable.

[0074] The output end of the adsorption conveyor belt 25 is also connected in sequence to a cell alignment module 27 and a discharging area 28 .

[0075] The string welding machine 1 of the present invention comprises a lampshade welding module 15 and a transmission soldering station module 14 . The output end of the transmission soldering station module 14 is connected to the input end of the string cutting module 3 . The lampshade welding module 15 is located above the transmission soldering station module 14 .

[0076] The transmission soldering station module 14 includes a conveyor belt 1401, a heating plate 1402, a fan 1403 and a second motor 1404; the conveyor belt 1401 is connected to the second motor 1404 in a transmission manner, and both the conveyor belt 1401 and the heating plate 1402 are provided with adsorption holes. The heating plate 1402 is arranged below the conveyor belt 1401, and the fan 1403 is used to draw air so that the battery string is close to the conveyor belt 1401 during the conveying process. Through this arrangement, the heating plate 1402 is used to preheat the battery cell before welding, which can reduce the stress generated by temperature changes inside the battery cell. The fan 1403 is used to draw air to form a negative pressure, which can tighten the battery cell during the conveying process of the battery string to prevent the battery cell or the soldering strip from being offset. In this embodiment, the transmission soldering station module 14 also includes a guide groove plate 1405, which is arranged at the input end of the transmission soldering station module 14, and the guide groove plate 1405 is provided with a groove matching the soldering strip for positioning the soldering strip.

[0077] The lampshade welding module 15 includes a steel wire welding plate lifting assembly 1501, a heating assembly 1502, a second fixed frame 1503 and a third cylinder 1504. The second fixed frame 1503 is fixed on the machine platform, and two fourth slide rails 1505 are symmetrically arranged on both sides of the second fixed frame 1503. The heating assembly 1502 is provided with a second slider 1506, and the steel wire welding plate lifting assembly 1501 is provided with a third slider 1507. The heating assembly 1502 and the steel wire welding plate lifting assembly 1501 are slidably connected to the fourth slide rail 1505 through the second slider 1506 and the third slider 1507, respectively, and the steel wire welding plate lifting assembly 1501 is located below the heating assembly 1502. The heating assembly 1502 is movably connected to the third cylinder 1504, so that the heating assembly 1502 can move up and down along the fourth slide rail 1505 of the second fixed frame 1503 under the drive of the third cylinder 1504. The height of the wire welding plate lifting assembly 1501 from the conveyor belt 1401 of the transmission welding station module 14 can be adjusted by adjusting its position on the fourth slide rail 1505 according to actual needs.

[0078] The stringer 1 of the present invention further includes a soldering ribbon arrangement module 12 and a soldering ribbon pulling module 13 .

[0079] The welding ribbon arrangement module 12 includes a guide roller 1201, a first clamping assembly 1202, a second clamping assembly 1203, a cutting assembly 1204, an arrangement table 1205 and a transfer table 1206; the guide roller 1201 is fixed to the input end of the arrangement table 1205, and a limit groove is arranged in parallel on the guide roller 1201, and the output end of the arrangement table 1205 is connected to the transfer table 1206. The cutting assembly 1204 is fixed to the output end of the arrangement table 1205; the first clamping assembly 1202 is slidably connected to the machine table through the fifth slide rail 1207, and the second clamping assembly 1203 is slidably connected to the machine table through the fifth slide rail 1207. By setting the solder strip arrangement module 12 in this way, the solder strip can be straightened, compressed (bending is optional) and cut, and the amount of solder strip stretching can be set (the motor drives the screw rod to drive the second compression assembly 1203 to move, and adjusts the distance between the first compression assembly 1202 and the second compression assembly 1203), and the bending depth and position can be manually adjusted by the first compression assembly 1202 and the second compression assembly 1203. When switching different grid line cells, only the corresponding guide tooling needs to be replaced.

[0080] The welding ribbon traction module 13 includes a welding ribbon clamp assembly 1301 and a first movable crawler 1302. The welding ribbon clamp assembly 1301 is connected to the first movable crawler 1302 in a transmission manner, so that the welding ribbon clamp assembly 1301 pulls the welding ribbon from the welding ribbon arrangement module 12 to the guide groove plate 1405 of the transmission welding platform module 14. In this embodiment, the welding ribbon clamp assembly 1301 is fixed on the fourth slider 1303, and is slidably connected to the sixth slide rail 1304 through the fourth slider 1303, and the first crawler is connected to the fourth slider 1303 in a transmission manner. There are two welding ribbon clamp assemblies 1301, which are respectively arranged on both sides of the welding ribbon arrangement module 12 and the transmission welding platform module 14, forming inner and outer traction. In this way, the welding ribbon can be pulled alternately up and down, and the welding ribbon (welding wire) can be directly placed on the main grid line of the battery cell, which improves the working efficiency.

[0081] A solder strip winding module 11 is provided in front of the input end of the solder strip arrangement module 12, which is used to convey the solder strip into the solder strip arrangement module 12. A battery cell loading assembly 16 is provided on the side of the solder strip arrangement module 12, and the battery cell loading assembly 16 includes a loading and conveying module 1601, a second translation mechanism 1602, a transmission module 1603, a battery cell positioning module 1605 and a battery cell taking position 1604; the loading and conveying module 1601 and the transmission module 1603 are arranged side by side; the second translation mechanism 1602 is arranged above the loading and conveying module 1601 and the transmission module 1603, and is used to transfer the battery cell from the loading and conveying module 1601 to the transmission module 1603; the battery cell taking position 1604 is connected to the output end of the transmission module 1603.

[0082] The cell positioning module 1605 is fixed on the transmission module 1603. The cell positioning module 1605 is provided with two parallel and opposite limiting plates, and the cell is positioned by the limiting plates.

[0083] The string welding machine 1 also includes a robot module 17, which is arranged between the battery cell loading assembly 16 and the transmission soldering station module 14, and is used to transfer the battery cells on the battery cell taking position 1604 to the transmission soldering station module 14 for welding.

[0084] The above embodiments of the present invention are not intended to limit the protection scope of the present invention, and the implementation modes of the present invention are not limited thereto. All other modifications, replacements or changes made to the above structures of the present invention by ordinary technicians in the field according to the common technical knowledge and customary means in the field based on the above contents of the present invention, without departing from the above basic technical ideas of the present invention, should fall within the protection scope of the present invention.

Claims

1. A string welding machine expansion structure, characterized in that: It comprises a string welding machine (1), and also comprises an extended terminal welding machine (2), wherein the extended terminal welding machine (2) is connected to the discharge rear end of the string welding machine (1) through a string cutting module (3); The string cutting module (3) comprises a cutting component (31) and a length adjustment component (32); the length adjustment component (32) comprises a base (3201), a first fixed frame (3202), a first bracket (3203), a first conveyor belt (3204), a first slide rail (3205), a screw rod (3206) and a first motor (3207); the first fixed frame (3202) is fixed on the base (3201), and a roller (3206) is arranged on the first fixed frame (3202). 9), the first conveyor belt (3204) is sleeved on the roller (3209); the bottom of the first bracket (3203) is movably connected to the first slide rail (3205), so that the first bracket (3203) can move back and forth on the first slide rail (3205); the output shaft of the first motor (3207) is fixedly connected to the screw rod (3206), and the screw rod (3206) is transmission-connected to the first bracket (3203); the cutting assembly (31) is fixed on the first bracket (3203).

2. The extended structure of the stringer according to claim 1, characterized in that: The first bracket (3203) is fixedly connected to a fixing member (3208), and the fixing member (3208) is fixedly connected to a roller (3209). The first conveyor belt (3204) is sleeved on the roller (3209), so that the first conveyor belt (3204) is driven to bypass the cutter (3101).

3. The string welding machine expansion structure according to claim 2 is characterized in that: The cutting assembly (31) comprises a cutter (3101), a support member (3102) and a first cylinder (3103); the first cylinder (3103) is fixed on the top of a first bracket (3203); the first cylinder (3103) is in driving connection with the cutter (3101); the support member (3102) is fixed on a fixing member (3208) and is located below the cutter (3101), and cooperates with the cutter (3101) to cut the welding strip.

4. The stringer expansion structure according to claim 1, characterized in that: The extended terminal welding (2) comprises a busbar clamping assembly (24), an adsorption conveyor belt (25) and a terminal welding mechanism (26); one end of the adsorption conveyor belt (25) is provided with a busbar clamping assembly (24), and the other end is provided with a terminal welding mechanism (26); the extended terminal welding (2) also comprises a single-sided busbar coil assembly (23), and the single-sided busbar coil assembly (23) is fixed on the frame (21) and is located above the busbar clamping assembly (24).

5. The stringer expansion structure according to claim 4, characterized in that: The busbar clamping assembly (24) comprises a guide rail (2401) and a busbar clamp (2402), wherein the busbar clamp (2402) is fixed on the guide rail (2401); the busbar clamping assembly (24) further comprises a pressure needle module (2403), wherein the pressure needle module (2403) is arranged opposite to the adsorption conveyor belt (25); the terminal welding mechanism (26) comprises a base plate (2601), a movable plate (2602), a welding joint (2603), a second bracket (2604) and a second cylinder (2605); the base plate (2601) is fixed on the second bracket (2604), the second cylinder (2605) is fixed on the base plate (2601) through a mounting plate (2606), the second cylinder (2605) is fixedly connected to the movable plate (2602), and the welding joint (2603) is fixed on the movable plate (2602).

6. The extended structure of the stringer according to any one of claims 1 to 5, characterized in that: The string welding machine (1) comprises a lampshade welding module (15) and a transmission welding platform module (14); the output end of the transmission welding platform module (14) is connected to the input end of the string cutting module (3); and the lampshade welding module (15) is located above the transmission welding platform module (14).

7. The stringer expansion structure according to claim 6, characterized in that: The transmission soldering station module (14) comprises a conveyor belt (1401), a heating plate (1402), a fan (1403) and a second motor (1404); the conveyor belt (1401) is connected to the second motor (1404) in a transmission manner, the conveyor belt (1401) and the heating plate (1402) are both provided with adsorption holes, the heating plate (1402) is arranged below the conveyor belt (1401), and the fan (1403) draws air so that the battery string is closely attached to the conveyor belt (1401) during the transportation process; and the transmission soldering station module (14) further comprises a guide groove plate (1405), the guide groove plate (1405) is arranged at the input end of the transmission soldering station module (14), and the guide groove plate (1405) is provided with a groove matching the soldering strip for positioning the soldering strip.

8. The stringer expansion structure according to claim 6, characterized in that: The string welding machine (1) also includes a welding strip arrangement module (12), and the welding strip arrangement module (12) includes a guide roller (1201), a first clamping assembly (1202), a second clamping assembly (1203), a cutting assembly (1204) and an arrangement table (1205); the guide roller (1201) is fixed to the input end of the arrangement table (1205), and the cutting assembly (1204) is fixed to the output end of the arrangement table (1205); the first clamping assembly (1202) is slidably connected to the machine table via a fifth slide rail (1207), and the second clamping assembly (1203) is slidably connected to the machine table via the fifth slide rail (1207).

9. The stringer expansion structure according to claim 8, characterized in that: The string welding machine (1) also includes a welding ribbon pulling module (13), wherein the welding ribbon pulling module (13) includes a welding ribbon clamp assembly (1301) and a first movable crawler (1302), wherein the welding ribbon clamp assembly (1301) is transmission-connected to the first movable crawler (1302), so that the welding ribbon clamp assembly (1301) pulls the welding ribbon from the welding ribbon sorting module (12) to the transmission welding platform module (14).

10. The stringer expansion structure according to claim 9, characterized in that: The string welding machine (1) further comprises a battery cell loading assembly (16), wherein the battery cell loading assembly (16) comprises a loading and conveying module (1601), a second translation mechanism (1602), a transmission module (1603) and a battery cell taking position (1604); the loading and conveying module (1601) and the transmission module (1603) are arranged side by side; the second translation mechanism (1602) is arranged above the loading and conveying module (1601) and the transmission module (1603) and is used to transfer the battery cell from the loading and conveying module (1601) to the transmission module (1603); the battery cell taking position (1604) is connected to the output end of the transmission module (1603); It also includes a robot module (17) and a soldering tape roll module (11), wherein the robot module (17) is arranged between the battery cell loading assembly (16) and the transfer soldering station module (14), and is used to transfer the battery cells on the battery cell taking position (1604) to the transfer soldering station module (14); and the soldering tape roll module (11) is arranged in front of the input end of the soldering tape sorting module (12), and is used to transport the soldering tape into the soldering tape sorting module (12).

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