A tape making device and method for BC battery welding

Abstract

The present invention relates to a device and method for preparing welding ribbons, and specifically to a ribbon making device and method for BC battery welding, which is used to solve the many challenges that the string welding process of BC batteries still faces, including welding accuracy, equipment compatibility, production efficiency, and material waste. The ribbon making device for BC battery welding includes a straightening and clamping mechanism, a positioning and cutting mechanism, a welding ribbon clamping mechanism, a double-row traction mechanism, and a support and spacing mechanism. The present invention supports the independent traction and spacing arrangement of odd-numbered welding ribbons and even-numbered welding ribbons through modular design. Compared with the traditional whole-string welding ribbon production method, it can flexibly adapt to battery strings of different lengths, thereby improving the versatility and compatibility of the equipment. In addition, the precise control of the adsorption component and the welding ribbon clamping mechanism ensures the flexible adjustment of the welding ribbon length and layout, so that the equipment can adapt to various BC battery production requirements.

Description

Technical Field

[0001] The present invention relates to a device and method for preparing a welding strip, and in particular to a device and method for preparing a strip for BC battery welding. Background Art

[0002] With the continuous advancement of photovoltaic technology, especially in the application of back-contact cell (BC) technology, string soldering has become a critical technical step. The unique structural design of BC cells—all electrodes located on the back of the cell—offers advantages for improving cell efficiency, but also brings new manufacturing challenges. In particular, during the string soldering process, the soldering on the back of the cell, the method of securing the solder ribbon, and its positional accuracy have a crucial impact on the quality of the final product and production efficiency.

[0003] There are multiple options for producing BC battery ribbons, each tailored to specific application scenarios and offering distinct advantages and disadvantages. Traditionally, the entire string handling method requires the ribbons to be produced in one go, then handled and welded together using equipment. While this method can meet the needs of certain applications, due to equipment limitations, it is not compatible with battery strings of varying lengths. Furthermore, if a particular set of ribbons fails, the entire string must be remade, resulting in significant waste.

[0004] Another common ribbon manufacturing process is a separate pulling method, where the odd-numbered and even-numbered ribbons are pulled separately and placed directly onto the cell. This method has lower production efficiency and can easily lead to deviations in ribbon placement accuracy, potentially affecting the overall quality of the cell.

[0005] Some BC battery string welding systems on the market use infrared welding technology. This technology utilizes infrared heating to achieve welding, effectively reducing equipment operating costs. However, infrared welding typically relies on the production of an entire string of solder ribbons, which results in poor equipment compatibility. If a solder ribbon fails, the entire string must be remade, resulting in significant material waste.

[0006] Therefore, the string soldering process for BC cells still faces many challenges, including soldering accuracy, equipment compatibility, production efficiency, and material waste. Solving these problems is crucial to improving BC cell production efficiency, reducing costs, and enhancing the market competitiveness of photovoltaic cells. Summary of the Invention

[0007] The purpose of the present invention is to solve the problems of insufficient welding accuracy, poor equipment compatibility, low production efficiency and material waste in the string welding process of BC batteries, and to provide a belt making device and method for BC battery welding.

[0008] In order to solve the deficiencies of the above-mentioned prior art, the present invention provides the following technical solutions:

[0009] A ribbon making device for BC battery welding, which is special in that it includes a straightening and pressing mechanism, a positioning and cutting mechanism, a ribbon pressing mechanism, a double-row traction mechanism, and a ribbon support and spacing mechanism arranged in sequence along the ribbon transmission direction;

[0010] The straightening and pressing mechanism is used to straighten and press the welding ribbon to ensure that the position of the welding ribbon is accurate and stable in the subsequent process. It includes a straightening and pressing frame, two welding ribbon pressing assemblies arranged on the straightening and pressing frame in sequence along the X-axis direction, a wire comb and an overall welding ribbon pressing assembly; the X-axis direction is the length direction of the welding ribbon, and the welding ribbon transmission direction is the positive direction of the X-axis; the two welding ribbon pressing assemblies are respectively used to press the welding ribbons with odd and even numbers; the wire comb is used to guide the welding ribbon to pass through and ensure that the welding ribbons are arranged neatly; the overall welding ribbon pressing assembly is used to press all welding ribbons; the straightening and pressing mechanism ensures the independent pressing and overall stability of each welding ribbon through the combination of the welding ribbon pressing assembly and the overall welding ribbon pressing assembly;

[0011] The positioning and cutting mechanism is used to accurately position the welding ribbon and cut it according to length. It includes a positioning and cutting frame that moves along the X-axis direction. The positioning and cutting frame is provided with A cutter assemblies arranged along the Y-axis direction and A positioning comb assemblies arranged along the Y-axis direction. Each cutter assembly and its corresponding positioning comb assembly are arranged in sequence along the X-axis direction. The cutter assembly is used to cut the welding ribbon, and the positioning comb assembly is used to correct the cut welding ribbon. A ≥ 1;

[0012] The solder ribbon pressing mechanism is used to press the solder ribbon in a specified position and provide sufficient pressure for subsequent processing. It includes a plurality of pressure pin units arranged in sequence along the X-axis, each pressure pin unit includes a plurality of pressure pins arranged in sequence along the Y-axis, and each pressure pin corresponds to a solder ribbon; the Y-axis conforms to a left-hand rectangular coordinate system with the positive direction of the Z-axis being vertically upward;

[0013] The double-row traction mechanism is used to clamp and pull the welding ribbon, move it according to a preset length, and provide the welding ribbon segment required for subsequent processing. It includes A clamping assemblies arranged in sequence along the Y axis and moving along the X axis; each of the clamping assemblies includes a lower clamping jaw and two clamping units; the two clamping units are stacked up and down, and the multiple clamping jaws of the two clamping units are staggered with each other, respectively used to cooperate with the lower clamping jaw to clamp the welding ribbons with odd and even numbers;

[0014] The support strip spacing mechanism is used to separate and arrange the welding strips in odd and even sequences and position them, providing a preset welding strip layout for subsequent welding. It includes A adsorption components arranged in sequence along the Y axis and moving along the X axis. The A adsorption components are respectively used to move along the X axis below the A clamping components; each adsorption component includes two adsorption units arranged in sequence along the X axis, and the two adsorption units are respectively used to adsorb welding strips with odd and even numbers.

[0015] Furthermore, a pressing base plate is provided on the straightening and pressing frame in the XY plane;

[0016] Each of the welding ribbon pressing assemblies includes a first pressing cylinder located below the pressing base plate, a first pressing block located above the pressing base plate, and two first pressing guide rods; the length direction of the first pressing block is parallel to the Y-axis, and a plurality of pressing grooves are sequentially provided on the bottom surface along the Y-axis, and a silicone pad corresponding to the bottom surface of the first pressing block is provided on the pressing base plate; the upper ends of the two first pressing guide rods are respectively connected to the two ends of the first pressing block, and the lower ends pass through the pressing base plate and are connected to the driving end of the first pressing cylinder;

[0017] The multiple pressing grooves of the two welding ribbon pressing assemblies are staggered with each other, and are used to press the welding ribbons with odd and even sequence numbers respectively;

[0018] The top surface of the wire comb is provided with a plurality of welding strip grooves, and each welding strip groove corresponds to a welding strip.

[0019] Furthermore, the integral welding ribbon pressing assembly comprises A floating pressing block assemblies arranged sequentially along the Y axis above the pressing base plate;

[0020] Each of the floating pressure block assemblies includes a floating plate, at least one second pressing cylinder, a first vertical guide rail, and a righting slot assembly;

[0021] The floating plate is connected to the driving end of the second pressing cylinder, and both ends of the floating plate are located on the first vertical guide rail. A plurality of second pressing guide rods are provided in the middle. A compression spring is connected to the bottom of each second pressing guide rod. At least one floating pressure block is provided under each compression spring. Each floating pressure block is used to press a welding strip. The floating plate and the compression spring can adapt to slight errors of the welding strip and avoid damage to the welding strip.

[0022] The floating plate and the alignment slot assembly are sequentially arranged along the X-axis. The alignment slot assembly is used to position the welding strip and includes a plurality of alignment slots sequentially arranged on the pressing base plate along the Y-axis, and a cover plate located above the plurality of alignment slots. Each alignment slot corresponds to a welding strip, and the cover plate covers the alignment slot to limit the position deviation of the welding strip.

[0023] The width of the welding strip groove on the top surface of the wire comb is 0.2-1 mm.

[0024] Furthermore, the positioning and cutting mechanism further comprises a positioning and cutting bottom plate, a positioning and cutting motor, and a first horizontal guide rail;

[0025] The positioning belt cutting motor and the first horizontal guide rail are respectively arranged on the bottom surface and the top surface of the positioning belt cutting base plate; the positioning belt cutting frame is arranged on the first horizontal guide rail and is connected to the driving end of the positioning belt cutting motor;

[0026] Each of the cutter assemblies includes two cutter units symmetrically arranged in an upper and lower direction; each of the cutter units includes a cutter cylinder arranged on a positioning and cutting frame, a second vertical guide rail, a cutter seat, and a cutter arranged on the cutter seat, wherein the cutter seat is located on the second vertical guide rail and connected to the drive end of the cutter cylinder; the two cutter seats are used to move toward or away from each other under the action of the cutter cylinder; the cutters of the two cutter units cooperate with each other to cut the welding strip between them;

[0027] Each positioning comb assembly includes two positioning comb units corresponding to the two cutter units, and each positioning comb unit includes a positioning comb cylinder, a positioning comb guide rail, and a positioning plate arranged on a positioning cutting frame; the driving end of the positioning comb cylinder is connected to the positioning plate arranged on the positioning comb guide rail to drive the positioning plate to move along the Y-axis direction, and a plurality of positioning steel needles are arranged on the bottom surface of the positioning plate;

[0028] The multiple positioning steel needles of the two positioning comb units are staggered with each other, and the gaps between adjacent positioning steel needles are used to pass through the welding strip to straighten the welding strip.

[0029] Furthermore, the welding ribbon pressing mechanism includes a double-row press needle assembly and a single-row press needle assembly sequentially arranged along the X-axis, and the single-row press needle assembly and the double-row press needle assembly each include a press needle motor, a lead screw, a third vertical guide rail, and a press needle mounting plate; the press needle mounting plate is arranged on the third vertical guide rail and is connected to the drive end of the press needle motor through a lead screw;

[0030] The double-row press needle assembly is used to simultaneously press multiple solder strips, and two press needle units are provided on the bottom surface of the press needle mounting plate. The single-row press needle assembly is used to assist the double-row press needle assembly in pressing multiple solder strips, and one press needle unit is provided on the bottom surface of the press needle mounting plate. The double-row press needle assembly and the single-row press needle assembly can operate independently or jointly to flexibly adapt to the processing requirements of solder strips of different lengths.

[0031] Each of the pressure pins is fixed to the corresponding pressure pin mounting plate by means of a threaded connection.

[0032] Furthermore, the ribbon clamping mechanism also includes a maintenance cylinder. The maintenance cylinder's drive end is connected to the single-row and double-row presser pin assemblies via a connecting plate. This is used to drive the single-row and double-row presser pin assemblies to their upper positions during equipment maintenance. This unified drive design of the maintenance cylinder reduces manual intervention during maintenance and improves efficiency.

[0033] Furthermore, the double-row traction mechanism further includes A traction assemblies sequentially arranged along the Y axis, each traction assembly including a traction base plate, a traction motor arranged on the top surface of the traction base plate, a traction guide rail, and the clamping assembly; the clamping assembly is arranged on the corresponding traction guide rail and connected to the driving end of the traction motor;

[0034] Each of the gripping units includes a mounting plate and a linked cylinder, wherein the linked cylinder is arranged on the mounting plate and is connected to the plurality of gripping claws via a plurality of piston rods, and the plurality of gripping claws are sequentially arranged along the Y-axis direction;

[0035] The lower clamping jaw is arranged on the mounting plate of the lower clamping unit.

[0036] Furthermore, the support belt spacing mechanism includes a spacing base plate, a first spacing motor arranged on the top surface of the spacing base plate, and a spacing assembly arranged on the first spacing motor; the spacing assembly includes a second spacing motor and a second horizontal guide rail;

[0037] The A adsorption components are arranged on the second horizontal guide rail and connected to the second spacing motor drive end;

[0038] Each adsorption unit comprises an adsorption base, multiple adsorption bars, and multiple positioning bosses. Each adsorption bar corresponds to a soldering ribbon, and the top surface of each adsorption bar is provided with multiple adsorption holes. Two positioning bosses are symmetrically arranged on either side of each adsorption hole to assist in positioning the soldering ribbon. The adsorption base is connected to the drive end of the second spacing motor and internally provides an adsorption air path that connects to each adsorption hole. The adsorption bars of the two adsorption units are interlaced, respectively used to adsorb odd-numbered and even-numbered soldering ribbons. The coordinated drive of the first spacing motor and the second spacing motor enables precise movement of the adsorption assembly. The combination of the adsorption bars and positioning bosses further ensures the precise positioning of the soldering ribbon.

[0039] At the same time, the present invention also provides a method for making a tape for BC battery welding, which uses the above-mentioned tape making device for BC battery welding, and its special feature is that it includes the following steps:

[0040] Step 1: All the solder strips are passed through the wire comb, the corresponding cutter assembly, and the corresponding positioning comb assembly 3 in sequence. All the solder strips are clamped by A clamping assemblies, and then all the solder strips are compressed by two solder strip compression assemblies and the overall solder strip compression assembly.

[0041] Step 2: Cut all the solder strips using the A cutter assemblies of the positioning and cutting mechanism to form the initial position of the solder strips, and then straighten the solder strips using the A positioning comb assemblies;

[0042] Step 3: Make A clamping assembly release all the soldering ribbons and then move to the initial position of the soldering ribbons;

[0043] Step 4: Clamp all solder strips using A clamping components;

[0044] Alternatively, the welding strips with even numbers are clamped by a clamping unit of the A clamping assemblies, and the welding strips with odd numbers are clamped by a welding strip clamping assembly of the straightening and clamping mechanism;

[0045] A clamping unit of the A clamping assembly clamps the welding ribbons with odd numbers, and a welding ribbon pressing assembly of the straightening and pressing mechanism presses the welding ribbons with even numbers;

[0046] Step 5: Move the A clamping assembly in the positive direction of the X-axis by a preset distance, and place the support belt spacing mechanism below the welding belt;

[0047] Step 6: Press down some or all of the pin pressing units on the solder ribbon pressing mechanism;

[0048] Step 7: Move the positioning cutting frame of the positioning cutting mechanism in the positive direction of the X-axis by a preset distance, so that the cutting knife assembly in step 8A cuts the welding ribbon;

[0049] Step 8. Move the two solder ribbon clamping assemblies and the entire solder ribbon clamping assembly in the positive direction of the Z axis to release the solder ribbon.

[0050] Step 9: Move the A adsorption components in the positive direction of the X axis. At the same time, one adsorption unit of each adsorption component adsorbs the welding ribbon with an even or odd sequence number to complete the ribbon making.

[0051] Furthermore, the step 2 is specifically as follows:

[0052] Step 2.1: In each cutter assembly, the two cutter units drive the cutter base to move along the second vertical guide rail via the cutter cylinder, and the two cutters move toward each other to cut off all the welding strips, forming the initial position of the welding strips;

[0053] Step 2.2: The cut welding ribbon automatically slides into the corresponding positioning comb assembly area. The positioning comb cylinder drives the positioning plate to move along the Y-axis on the positioning comb guide rail, pushing the welding ribbon into the gap between the steel needles, correcting the position of the welding ribbon, and ensuring that the welding ribbon is neatly arranged and parallel to the X-axis.

[0054] Compared with the prior art, the present invention has the following beneficial effects:

[0055] (1) The present invention provides a ribbon making device for BC battery welding, comprising a straightening and clamping mechanism, a positioning and cutting mechanism, a ribbon clamping mechanism, a double-row traction mechanism, and a ribbon spacing mechanism. The present invention utilizes a modular design to support the independent traction and spacing of odd-numbered and even-numbered ribbons. Compared to the traditional whole-string ribbon production method, the device can flexibly adapt to battery strings of different lengths, thereby improving the versatility and compatibility of the device. Furthermore, the precise control of the adsorption assembly and ribbon clamping mechanism ensures flexible adjustment of the ribbon length and layout, allowing the device to adapt to various BC battery production requirements.

[0056] (2) Through the coordinated operation of the straightening and pressing mechanism and the support and spacing mechanism, the present invention can accurately separate and arrange the welding ribbons in an odd-even sequence, eliminating the problem of welding ribbon placement deviation that may occur in the traditional separate pulling method. In addition, the high-precision cutting capability of the positioning and cutting mechanism and the stable pulling function of the double-row pulling mechanism further ensure the dimensional consistency and position accuracy of the welding ribbons, thereby improving the overall quality of battery string welding.

[0057] (3) The double-row traction mechanism and the support belt spacing mechanism of the present invention support the synchronous traction and spacing arrangement of multiple welding ribbons, which significantly improves the production efficiency compared with the traditional separate traction method; and the one-to-one correspondence design between each module (such as the linkage between the positioning and cutting mechanism and the traction mechanism, and the support belt spacing mechanism) realizes efficient automated operation, reduces manual intervention, and shortens the production cycle.

[0058] (4) The multi-stage clamping and positioning design of the straightening and clamping mechanism, the welding strip clamping mechanism and the supporting strip spacing mechanism of the present invention ensures that the welding strip is always in a controlled state during the processing, which greatly reduces the process problems caused by the deviation of the welding strip; and the modular design minimizes the impact of failures in each link on the entire production process, thereby improving the reliability and stability of the overall system.

[0059] (5) The present invention provides a ribbon manufacturing method for BC battery welding, which achieves precise straightening, spacing, cutting, and positioning of the welding ribbons. It supports the independent processing and cross-layout of odd and even-numbered welding ribbons. Combined with automated pulling, adsorption, and pressing operations, it flexibly adapts to the welding requirements of BC batteries of different specifications. This method effectively improves the accuracy of welding ribbon layout and production efficiency, reduces material waste, and lowers operating and maintenance costs. It has high reliability and wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Figure 1 A front view of an embodiment of a tape making device for BC battery welding according to the present invention;

[0061] Figure 2 A top view of an embodiment of the present invention;

[0062] Figure 3Axonometric diagram of an embodiment of the present invention Figure 1 ;

[0063] Figure 4 Axonometric diagram of an embodiment of the present invention Figure 2 ;

[0064] Figure 5 Schematic diagram of the structure of the straightening and pressing mechanism in an embodiment of the present invention Figure 1 ;

[0065] Figure 6 Schematic diagram of the structure of the straightening and pressing mechanism in an embodiment of the present invention Figure 2 ;

[0066] Figure 7 Schematic diagram of the structure of the positioning and cutting mechanism in an embodiment of the present invention;

[0067] Figure 8 Schematic diagram of the structure of the welding strip pressing mechanism in an embodiment of the present invention;

[0068] Figure 9 Schematic diagram of the structure of a double-row traction mechanism in an embodiment of the present invention;

[0069] Figure 10 This is a schematic structural diagram of a clamping assembly in an embodiment of the present invention;

[0070] Figure 11 Schematic diagram of the structure of the belt support and spacing mechanism in an embodiment of the present invention;

[0071] Figure 12 This is a schematic structural diagram of an adsorption unit in an embodiment of the present invention;

[0072] Figure 13 This is a schematic structural diagram of a long welding ribbon between two battery cells manufactured in Example 1 of a ribbon manufacturing method for BC battery welding of the present invention;

[0073] Figure 14 This is a schematic diagram of the structure of the short welding strips between strings produced in Example 2 of the present invention.

[0074] The following are the descriptions of the reference numerals:

[0075] 01-welding strip;

[0076] 200-straightening and pressing mechanism; 210-straightening and pressing frame; 211-pressing base plate; 220-welding strip pressing assembly; 221-first pressing cylinder; 222-first pressing guide rod; 223-first pressing block; 230-thread comb; 240-integral welding strip pressing assembly; 241-floating pressing block assembly; 242-second pressing cylinder; 243-floating plate; 244-first vertical guide rail; 245-second pressing guide rod; 246-compression spring; 247-floating pressing block; 248-cover plate;

[0077] 300 - Positioning tape cutting mechanism; 310 - Positioning tape cutting base plate; 320 - Positioning tape cutting motor; 330 - First horizontal guide rail; 340 - Positioning tape cutting frame; 350 - Cutter assembly; 351 - Cutter unit; 352 - Cutter cylinder; 353 - Second vertical guide rail; 354 ​​- Cutter seat; 355 - Cutter; 361 - Positioning comb unit; 362 - Positioning comb cylinder; 363 - Positioning comb guide rail; 364 - Positioning plate; 365 - Positioning steel needle;

[0078] 400-weld ribbon clamping mechanism; 401-pressing needle motor; 402-lead screw; 403-third vertical guide rail; 404-pressing needle mounting plate; 405-pressing needle; 410-double-row pressing needle assembly; 420-single-row pressing needle assembly; 430-maintenance cylinder;

[0079] 500 - double-row traction mechanism; 510 - traction assembly; 511 - traction base plate; 512 - traction motor; 513 - traction guide rail; 514 - clamping assembly; 515 - lower clamping jaw; 516 - clamping unit; 517 - mounting plate; 518 - piston rod; 519 - clamping jaw; 5120 - linked cylinder;

[0080] 600-belt spacing mechanism; 610-spacing base plate; 620-first spacing motor; 630-spacing assembly; 631-second spacing motor; 632-second horizontal guide rail; 640-adsorption assembly; 641-adsorption unit; 642-adsorption base; 643-adsorption bar; 644-adsorption hole; 645-positioning boss. DETAILED DESCRIPTION

[0081] The present invention will be further described below with reference to the accompanying drawings and exemplary embodiments.

[0082] Reference Figures 1 to 4 A tape making device for BC battery welding includes a straightening and pressing mechanism 200, a positioning and cutting mechanism 300, a welding tape pressing mechanism 400, a double-row traction mechanism 500 and a tape support and spacing mechanism 600.

[0083] For ease of understanding, the coordinate system is defined as follows: the length direction of the welding ribbon 01 is the X-axis direction, the vertical upward direction is the positive direction of the Z-axis, and the Y-axis conforms to the left-hand rectangular coordinate system.

[0084] Reference Figures 5-6 The straightening and pressing mechanism 200 is used to straighten and press the welding strip 01 to ensure that the position of the welding strip 01 is accurate and stable in the subsequent process. It includes a straightening and pressing frame 210, and two welding strip pressing assemblies 220, a wire comb 230 and an overall welding strip pressing assembly 240 arranged in sequence on the straightening and pressing frame 210 along the X-axis direction.

[0085] A pressing base plate 211 is provided on the straightening and pressing frame 210 on the XY plane. The pressing base plate 211 is used to fix other components and provide a working plane.

[0086] Each welding strip clamping assembly 220 is used to independently clamp the welding strip 01 to ensure that each welding strip 01 can be accurately fixed. It includes a first clamping cylinder 221, two first clamping guide rods 222 and a first clamping block 223; the first clamping cylinder 221 and the first clamping block 223 are respectively located below and above the clamping base plate 211, the length direction of the first clamping block 223 is parallel to the Y-axis, and the bottom surface is sequentially provided with multiple clamping grooves along the Y-axis, and a silicone pad corresponding to the bottom surface of the first clamping block 223 is provided on the clamping base plate 211 to ensure that each welding strip 01 can be independently clamped; the upper ends of the two first clamping guide rods 222 are respectively connected to the two ends of the first clamping block 223, and the lower ends pass through the clamping base plate 211 to connect to the driving end of the first clamping cylinder 221.

[0087] The multiple pressing grooves of the two solder ribbon pressing assemblies 220 are staggered with each other and are used to press the solder ribbons 01 with odd and even sequence numbers respectively.

[0088] The wire comb 230 is used to guide the soldering ribbon 01 through and ensure that the soldering ribbon 01 is arranged neatly. The top surface of the wire comb 230 is provided with multiple soldering ribbon grooves with a width of 0.2 to 1 mm to accommodate soldering ribbons 01 of different widths.

[0089] The integrated solder ribbon clamping assembly 240 is used to provide additional clamping force during the straightening process of the solder ribbon 01, further stabilizing the position of the solder ribbon 01. It includes A floating pressure block assemblies 241 arranged sequentially along the Y-axis above the clamping base 211. A ≥ 1, in this embodiment, A is 2.

[0090] Each floating pressure block assembly 241 includes a floating plate 243, two second pressing cylinders 242, a first vertical guide rail 244, a plurality of second pressing guide rods 245, a plurality of compression springs 246, a plurality of floating pressure blocks 247, and a positioning slot assembly.

[0091] Each floating plate 243 is connected to the drive ends of two second compression cylinders 242. Both ends of the floating plate 243 rest on a first vertical guide rail 244, with multiple second compression guide rods 245 positioned in the middle. Each second compression guide rod 245 is connected to a compression spring 246 at its base. Below each compression spring 246 are two floating pressure blocks 247, each used to compress a welding ribbon 01. Because the welding ribbon 01 requires significant friction during compression and straightening, each floating plate 243 is connected to two second compression cylinders 242 to provide sufficient positive pressure.

[0092] The floating plate 243 and the alignment groove assembly are arranged in sequence along the X-axis. The alignment groove assembly is used to provide a positioning function for the welding strip 01 to ensure the precise arrangement of the welding strip 01. It includes a plurality of alignment grooves arranged in sequence on the clamping base plate 211 along the Y-axis, and a cover plate 248 located above the plurality of alignment grooves; each alignment groove corresponds to a welding strip 01, and the cover plate 248 limits the position deviation of the welding strip 01 by covering the alignment groove.

[0093] Reference Figure 7 The positioning and cutting mechanism 300 is used to accurately position the welding tape 01 and cut it according to length. It includes a positioning and cutting base plate 310, a positioning and cutting motor 320, a first horizontal guide rail 330, a positioning and cutting frame 340, A (two) cutter assemblies 350 and A (two) positioning comb assemblies.

[0094] The positioning tape cutting motor 320 and the first horizontal guide rail 330 (moving along the X-axis direction) are respectively arranged on the bottom and top surfaces of the positioning tape cutting base plate 310. The positioning tape cutting frame 340 is arranged on the first horizontal guide rail 330 and is connected to the driving end of the positioning tape cutting motor 320. The positioning tape cutting frame 340 is provided with two cutter assemblies 350 arranged along the Y-axis direction and two positioning comb assemblies arranged along the Y-axis direction.

[0095] Each cutter assembly 350 includes two cutter units 351 symmetrically arranged in the upper and lower parts, and the symmetrical arrangement is used to improve the stability of cutting; each cutter unit 351 includes a cutter cylinder 352, a second vertical guide rail 353, a cutter seat 354, and a cutter 355 arranged on the cutter seat 354, which is arranged on the positioning cutting frame 340. The cutter seat 354 is located on the second vertical guide rail 353 and is connected to the drive end of the cutter cylinder 352; the cutters 355 of the two cutter units 351 cooperate with each other to cut the welding strip 01 between them.

[0096] Each cutter assembly 350 corresponds to a positioning comb assembly, and each cutter assembly 350 and the corresponding positioning comb assembly are arranged in sequence along the X-axis direction. Each positioning comb assembly includes two positioning comb units 361 corresponding to the two cutter units 351. Each positioning comb unit 361 includes a positioning comb cylinder 362, a positioning comb guide rail 363 (moving along the Y-axis direction), a positioning plate 364, and a plurality of positioning steel needles 365 arranged on the positioning cutting frame 340; the positioning plate 364 is arranged on the positioning comb guide rail 363 and connected to the driving end of the positioning comb cylinder 362, and a plurality of positioning steel needles 365 are arranged on the bottom surface of the positioning plate 364. The multiple positioning steel needles 365 of the two positioning comb units 361 are staggered with each other, and the gaps between adjacent positioning steel needles 365 are used to pass through the welding strip 01 to straighten the welding strip 01.

[0097] Reference Figure 8 The solder strip pressing mechanism 400 is used to press the solder strip 01 to a specified position and provide sufficient pressure for subsequent processing. It includes a double-row press needle assembly 410 and a single-row press needle assembly 420 arranged in sequence along the X-axis. The single-row press needle assembly 420 and the double-row press needle assembly 410 both include a press needle motor 401, a lead screw 402, a third vertical guide rail 403, and a press needle mounting plate 404; the press needle mounting plate 404 is arranged on the third vertical guide rail 403 and is connected to the drive end of the press needle motor 401 through the lead screw 402.

[0098] The double-row press needle assembly 410 is used to simultaneously press multiple solder strips 01, and two press needle units are set on the bottom surface of its press needle mounting plate 404. The single-row press needle assembly 420 is used to assist the double-row press needle assembly 420 in pressing multiple solder strips 01, and a press needle unit is set on the bottom surface of its press needle mounting plate 404. Each press needle unit includes multiple press needles 405 arranged in sequence along the Y-axis, and each press needle 405 corresponds to a solder strip 01.

[0099] Each pressure pin 405 is fixed to the corresponding pressure pin mounting plate 404 by a threaded connection, so as to facilitate replacement.

[0100] In making the long welding strip between the two battery cells ( Figure 13 ), the double-row press pin assembly 410 and the single-row press pin assembly 420 can act simultaneously to produce the short solder strips between strings ( Figure 14 ), only the double-row press pin assembly 410 is in operation. The short solder strips between strings are the short solder strips on the last cell of the previous cell string and the short solder strips on the first cell of the next cell string.

[0101] The welding strip clamping mechanism 400 also includes a maintenance cylinder 430. The driving end of the maintenance cylinder 430 is connected to the single-row pressure needle assembly 420 and the double-row pressure needle assembly 410 through a connecting plate. It is used to drive the single-row pressure needle assembly 420 and the double-row pressure needle assembly 410 to the upper position when the equipment is repaired, which is convenient for maintenance.

[0102] Reference Figures 9-10 The double-row traction mechanism 500 is used to clamp and pull the welding ribbon 01, move it according to a preset length, and provide the standardized welding ribbon segment required for subsequent processing (such as welding). It includes A (two) traction components 510 arranged in sequence along the Y axis. Each traction component 510 includes a traction base plate 511, and a traction motor 512, a traction guide rail 513 (moving along the X-axis direction) and a clamping component 514 arranged on the top surface of the traction base plate 511; the clamping component 514 is arranged on the traction guide rail 513 and is connected to the driving end of the traction motor 512.

[0103] The clamping assembly 514 includes a lower clamping jaw 515 and two clamping units 516; the two clamping units 516 are stacked up and down, and each clamping unit 516 includes a mounting plate 517, a linked cylinder 5120, multiple piston rods 518 and multiple clamping jaws 519. The linked cylinder 5120 is set on the mounting plate 517, and is respectively connected to the multiple clamping jaws 519 through multiple piston rods 518. The multiple clamping jaws 519 are arranged in sequence along the Y-axis direction.

[0104] The lower clamping jaw 515 is arranged on the mounting plate 517 of the lower clamping unit 516 and cooperates with the multiple clamping jaws 519 of the two clamping units 516. The multiple clamping jaws 519 of the two clamping units 516 are staggered with each other and are used to clamp the welding strips 01 with odd and even sequence numbers respectively.

[0105] Reference Figures 11-12 The support strip spacing mechanism 600 is used to separate and arrange the welding strips 01 in odd and even sequences and accurately position them, providing a preset welding strip layout for subsequent welding. It includes a spacing base plate 610, a first spacing motor 620, a spacing component 630, and A (two) adsorption components 640.

[0106] The first spacing motor 620 (a linear motor, moving along the X-axis) is mounted on the top surface of the spacing base plate 610, with a spacing assembly 630 mounted thereon. The spacing assembly 630 includes a second spacing motor 631 and a second horizontal guide rail 632 (moving along the X-axis). Two suction assemblies 640 are sequentially mounted on the second horizontal guide rail 632 along the Y-axis and connected to the drive end of the second spacing motor 631. The two suction assemblies 640 move along the X-axis below the gripping assemblies 514 of the two traction assemblies 510.

[0107] Each adsorption component 640 includes two adsorption units 641 arranged in sequence along the X-axis. Each adsorption unit 641 includes an adsorption base 642, five parallel adsorption strips 643 and multiple positioning bosses 645. Each adsorption strip 643 corresponds to a welding strip 01. A plurality of adsorption holes 644 are set on the top surface of each adsorption strip 643. Every two positioning bosses 645 are symmetrically arranged on both sides of an adsorption hole 644 to assist in positioning the welding strip 01.

[0108] The adsorption base 642 is connected to the driving end of the second spacing motor 631, and an adsorption air path is set inside, which is respectively connected to each adsorption hole 644; the adsorption bars 643 of the two adsorption units 641 are staggered with each other, and are respectively used to adsorb the welding ribbons 01 with odd and even numbers.

[0109] The A floating pressure block assemblies 241 of the integral welding ribbon pressing assembly 240, the A cutter assemblies 350 of the positioning and cutting mechanism 300, the A clamping assemblies 514 of the double-row traction mechanism 500, and the A adsorption assemblies 640 of the supporting and spacing mechanism 600 correspond one to one.

[0110] A method for making a tape for BC battery welding, using the above-mentioned tape making device for BC battery welding, comprises the following steps:

[0111] Step 1: All the welding ribbons 01 are sequentially passed through the multiple welding ribbon slots of the wire comb 230, the corresponding cutter assembly 350, and the gaps between the adjacent positioning steel needles 365 in the corresponding positioning comb assembly. All the welding ribbons 01 are clamped by the two clamping assemblies 514, and then all the welding ribbons 01 are compressed by the two welding ribbon compression assemblies 220 and the overall welding ribbon compression assembly 240 of the straightening and compression mechanism 200.

[0112] Step 2: Cut all the soldering ribbons 01 by the two cutter assemblies 350 of the positioning and cutting mechanism 300 to form the initial position of the soldering ribbons 01, and then straighten the soldering ribbons 01 by the two positioning comb assemblies, as follows:

[0113] Step 2.1: In each cutter assembly 350, the two cutter units 351 drive the cutter seat 354 to move along the second vertical guide rail 353 via the cutter cylinder 352. The two cutters 355 move toward each other to cut off all the welding strips 01, forming the initial position of the welding strips 01.

[0114] Step 2.2: The cut welding ribbon 01 automatically slides into the corresponding positioning comb assembly area. The positioning comb cylinder 362 drives the positioning plate 364 to move on the positioning comb guide rail 363 (moving along the Y-axis direction), pushing the welding ribbon 01 into the gap between the steel needles, correcting the position of the welding ribbon 01, and ensuring that the welding ribbon 01 is neatly arranged and parallel to the X-axis direction.

[0115] Step 3: Make the two clamping components 514 loosen all the welding ribbons 01, and then move the two traction components 510 of the double-row traction mechanism 500 to the initial position of the welding ribbons 01, specifically:

[0116] The traction motor 512 drives the traction assembly 510 to move along the traction guide rail 513 toward the initial position of the welding ribbon 01. When the traction assembly 510 approaches the initial position of the welding ribbon 01, the position can be detected by mechanical limit or sensor to ensure that the traction assembly 510 reaches the correct initial position of the welding ribbon 01.

[0117] Step 4: Clamp all the welding ribbons 01 using two clamping assemblies 514;

[0118] Alternatively, the soldering ribbons 01 with even numbers are clamped by one clamping unit 516 of the two clamping assemblies 514, and the soldering ribbons 01 with odd numbers are clamped by one soldering ribbon clamping assembly 220 of the straightening and clamping mechanism 200;

[0119] The welding strips 01 with odd numbers are clamped by a clamping unit 516 of the two clamping assemblies 514, and the welding strips 01 with even numbers are clamped by a welding strip clamping assembly 220 of the straightening and clamping mechanism 200;

[0120] The clamping action of a clamping unit 516 is as follows: the linked cylinder 5120 is activated, driving the piston rod 518 to move, driving the multiple clamping claws 519 to press down; each clamping claw 519 contacts and clamps the corresponding welding strip 01 to ensure that the welding strip 01 is fixed;

[0121] The specific pressing action of a solder ribbon pressing assembly 220 is as follows: the first pressing cylinder 221 drives the first pressing block 223 to move downward, and the solder ribbon 01 is independently pressed through the pressing groove at the bottom of the first pressing block 223;

[0122] Step 5: Move the two traction assemblies 510 of the double-row traction mechanism 500 in the positive direction of the X-axis by a preset distance, and place the support belt spacing mechanism 600 below the welding ribbon 01. Specifically:

[0123] The traction motor 512 drives the two traction assemblies 510 of the double-row traction mechanism 500 to move a preset distance in the positive direction along the X-axis through the traction guide rail 513. For a long solder ribbon between two cells, the preset distance = two cell widths - 2 * compensation value; for a short solder ribbon between strings, the preset distance = one cell width - compensation value. The compensation value is determined by the battery process and is generally -10 to 10 mm.

[0124] Step 6: Press down the single-row press pin assembly 420 and the double-row press pin assembly 410 on the solder ribbon pressing mechanism 400;

[0125] Alternatively, the double-row pressing pin assembly 410 on the solder ribbon pressing mechanism 400 is pressed downward;

[0126] Step 7: Move the positioning and cutting frame 340 of the positioning and cutting mechanism 300 in the positive direction of the X axis by a preset distance of 5 mm so that the cutter assembly 350 in step 8A cuts the welding ribbon 01 without interfering with the straightening and pressing mechanism 200; the preset distance is 2 to 10 mm;

[0127] Step 8: Cut off all the welding ribbons 01 by positioning the two cutter assemblies 350 of the ribbon cutting mechanism 300;

[0128] Step 9: Move the two solder ribbon pressing assemblies 220 and the entire solder ribbon pressing assembly 240 of the solder ribbon pressing mechanism 400 in the positive direction of the Z axis to release the solder ribbon 01;

[0129] Step 10: Move the two adsorption components 640 of the tape support and spacing mechanism 600 in the positive direction of the X axis. At the same time, one adsorption unit 641 of each adsorption component 640 adsorbs the welding tape 01 with an even or odd sequence number, thereby completing the tape making.

[0130] Example 1

[0131] Reference Figure 13 , a method for making ribbons for BC battery welding, for making a long ribbon for use between two battery cells, each battery cell being a half cell;

[0132] The steps include:

[0133] Step 1: All the welding ribbons 01 are sequentially passed through the multiple welding ribbon slots of the wire comb 230, the corresponding cutter assembly 350, and the gaps between the adjacent positioning steel needles 365 in the corresponding positioning comb assembly. All the welding ribbons 01 are clamped by the two clamping assemblies 514, and then all the welding ribbons 01 are compressed by the two welding ribbon compression assemblies 220 and the overall welding ribbon compression assembly 240 of the straightening and compression mechanism 200.

[0134] Step 2: The two cutter assemblies 350 of the positioning and cutting mechanism 300 cut all the welding strips 01 to form the initial position of the welding strips 01. Then, the welding strips 01 are straightened by the two positioning comb assemblies. The knife cylinder 352 drives the cutter seat 354 to move along the second vertical guide rail 353. The two cutters 355 move toward each other and cut all the welding strips 01 to form the initial position of the welding strips 01.

[0135] Step 2.2: The cut welding ribbon 01 automatically slides into the corresponding positioning comb assembly area. The positioning comb cylinder 362 drives the positioning plate 364 to move on the positioning comb guide rail 363 (moving along the Y-axis direction), pushing the welding ribbon 01 into the gap between the steel needles, correcting the position of the welding ribbon 01, and ensuring that the welding ribbon 01 is neatly arranged and parallel to the X-axis direction.

[0136] Step 3: Make the two clamping components 514 loosen all the welding ribbons 01, and then move the two traction components 510 of the double-row traction mechanism 500 to the initial position of the welding ribbons 01, specifically:

[0137] The traction motor 512 drives the traction assembly 510 to move along the traction guide rail 513 toward the initial position of the welding ribbon 01. When the traction assembly 510 approaches the initial position of the welding ribbon 01, the position can be detected by mechanical limit or sensor to ensure that the traction assembly 510 reaches the correct initial position of the welding ribbon 01.

[0138] Step 4: Clamp all the welding ribbons 01 using two clamping assemblies 514;

[0139] Step 5: Move the two traction assemblies 510 of the double-row traction mechanism 500 in the positive direction of the X-axis by a preset distance, and place the support belt spacing mechanism 600 below the welding ribbon 01. Specifically:

[0140] The traction motor 512 drives the two traction assemblies 510 of the double-row traction mechanism 500 to move a preset distance in the positive direction along the X-axis through the traction guide rail 513. The preset distance = the width of the two battery cells - 2 * the compensation value; the compensation value is -10 to 10 mm.

[0141] Step 6: Press down the single-row press pin assembly 420 and the double-row press pin assembly 410 on the solder ribbon pressing mechanism 400 simultaneously;

[0142] Step 7: Move the positioning cutting frame 340 of the positioning cutting mechanism 300 in the positive direction of the X axis by a preset distance of 5, so that the cutting blade assembly 350 in step 8A cuts the welding ribbon 01 without interfering with the straightening and pressing mechanism 200; the preset distance is 4 to 8 mm.

[0143] Step 8: Cut off all the welding ribbons 01 by positioning the two cutter assemblies 350 of the ribbon cutting mechanism 300;

[0144] Step 9: Move the two solder ribbon pressing assemblies 220 and the entire solder ribbon pressing assembly 240 of the solder ribbon pressing mechanism 400 in the positive direction of the Z axis to release the solder ribbon 01;

[0145] Step 10: Move the two adsorption components 640 of the support and spacing mechanism 600 toward the positive direction of the X axis. At the same time, one adsorption unit 641 of each adsorption component 640 adsorbs the solder strips 01 with even numbers, thus completing the production of the cross-knuckle solder strips 01 required for the BC battery.

[0146] Example 2

[0147] Reference Figure 14 A method for making ribbons for BC battery welding, for making short ribbons between strings, wherein the short ribbons between strings are the short ribbons on the last cell of the previous cell string and the short ribbons on the first cell of the next cell string, each cell being a half cell;

[0148] The steps include:

[0149] Step 5: Preset distance = width of one cell - compensation value; the compensation value is -10 to 10 mm;

[0150] Step 6: Press down the double-row pressure pin assembly 410 on the solder ribbon pressing mechanism 400;

[0151] The remaining steps of this embodiment are consistent with those of the first embodiment.

[0152] Example 3

[0153] A method for making a ribbon for BC battery welding, for making a welding ribbon 01 with an even number, comprising the following steps:

[0154] Step 4: Move the two traction assemblies 510 of the double-row traction mechanism 500 to the initial position of the welding ribbon 01, and then use a clamping unit 516 of the two clamping assemblies 514 to clamp the welding ribbon 01 with an even number; and use a welding ribbon clamping assembly 220 of the straightening and clamping mechanism 200 to clamp the welding ribbon 01 with an odd number to prevent the odd-numbered welding ribbon 01 from falling off during the traction process;

[0155] Step 10: Move the two adsorption components 640 of the support strip spacing mechanism 600 in the positive direction of the X axis, and at the same time, one adsorption unit 641 of each adsorption component 640 adsorbs the welding strip 01 with an even sequence number, thereby completing the production of the welding strip 01 with an even sequence number;

[0156] The remaining steps of this embodiment are consistent with those of the first embodiment.

[0157] Example 4

[0158] A method for making a ribbon for BC battery welding, for making a welding ribbon 01 with an odd sequence number, comprising the following steps:

[0159] Step 3: Move the two traction assemblies 510 of the double-row traction mechanism 500 to the initial position of the welding ribbon 01, and then use a clamping unit 516 of the two clamping assemblies 514 to clamp the welding ribbon 01 with an odd sequence number; and use a welding ribbon clamping assembly 220 of the straightening and clamping mechanism 200 to clamp the welding ribbon 01 with an even sequence number to prevent the even-numbered welding ribbon 01 from falling off during the traction process;

[0160] Step 10: Move the two adsorption components 640 of the support strip spacing mechanism 600 in the positive direction of the X axis, and at the same time, one adsorption unit 641 of each adsorption component 640 adsorbs the welding strip 01 with an odd sequence number, thereby completing the production of the welding strip 01 with an odd sequence number;

[0161] The remaining steps of this embodiment are consistent with those of the first embodiment.

Claims

1. A tape making device for BC battery welding, characterized by: It comprises a straightening and pressing mechanism (200), a positioning and cutting mechanism (300), a welding ribbon pressing mechanism (400), a double-row traction mechanism (500), and a supporting and spacing mechanism (600) which are sequentially arranged along the transmission direction of the welding ribbon (01); The straightening and pressing mechanism (200) comprises a straightening and pressing frame (210), two welding strip pressing assemblies (220) arranged on the straightening and pressing frame (210) in sequence along the X-axis direction, a wire comb (230) and an integral welding strip pressing assembly (240); the X-axis direction is the length direction of the welding strip, and the welding strip transmission direction is the positive direction of the X-axis; the two welding strip pressing assemblies (220) are respectively used to press welding strips with odd and even sequence numbers; the wire comb (230) is used to guide the welding strips (01) to pass through and ensure that the welding strips (01) are arranged neatly; the integral welding strip pressing assembly (240) is used to press all welding strips (01); The positioning tape cutting mechanism (300) comprises a positioning tape cutting frame (340) moving along the X-axis direction, and the positioning tape cutting frame (340) is provided with A cutter assemblies (350) arranged along the Y-axis direction and A positioning comb assemblies arranged along the Y-axis direction; each cutter assembly (350) and its corresponding positioning comb assembly are arranged in sequence along the X-axis direction, the cutter assembly (350) is used to cut the welding tape (01), and the positioning comb assembly is used to correct the cut welding tape (01); A≥1; The solder strip pressing mechanism (400) comprises a plurality of pressing pin units sequentially arranged along the X axis, each pressing pin unit comprises a plurality of pressing pins (405) sequentially arranged along the Y axis, and each pressing pin (405) is used to press a solder strip (01); the Y axis conforms to a left-hand rectangular coordinate system in which the solder strip transmission direction is the positive direction of the X axis and the positive direction of the Z axis is vertically upward; The double-row traction mechanism (500) is used to clamp and pull the welding strip (01), and includes A clamping assemblies (514) arranged in sequence along the Y axis and moving along the X axis; each of the clamping assemblies (514) includes a lower clamping jaw (515) and two clamping units (516); the two clamping units (516) are stacked up and down, and the multiple clamping jaws (519) of the two clamping units (516) are staggered and respectively used to cooperate with the lower clamping jaw (515) to clamp the welding strips (01) with odd and even sequence numbers; The support strip spacing mechanism (600) is used to separate and arrange the welding strips (01) in odd and even sequences and position them, providing a preset welding strip layout for subsequent welding. It includes A adsorption components (640) arranged in sequence along the Y axis, and the A adsorption components (640) are respectively used to move along the X axis below the A clamping components (514); each adsorption component (640) includes two adsorption units (641) arranged in sequence along the X axis, and the two adsorption units (641) are respectively used to adsorb the welding strips (01) with odd and even sequence numbers.

2. A tape making device for BC battery welding according to claim 1, characterized in that: The straightening and pressing frame (210) is provided with a pressing base plate (211) on the XY plane; Each of the welding strip pressing assemblies (220) comprises a first pressing cylinder (221) located below the pressing base plate (211), a first pressing block (223) located above the pressing base plate (211), and two first pressing guide rods (222); the length direction of the first pressing block (223) is parallel to the Y axis, and a plurality of pressing grooves are sequentially arranged on the bottom surface along the Y axis, and a silicone pad corresponding to the bottom surface of the first pressing block (223) is arranged on the pressing base plate (211); the upper ends of the two first pressing guide rods (222) are respectively connected to the two ends of the first pressing block (223), and the lower ends pass through the pressing base plate (211) to connect to the driving end of the first pressing cylinder (221); The multiple pressing grooves of the two welding strip pressing assemblies (220) are interlaced with each other and are used to press the welding strips (01) with odd and even sequence numbers respectively; The top surface of the wire comb (230) is provided with a plurality of welding strip grooves, and each welding strip groove corresponds to a welding strip (01).

3. The tape making device for BC battery welding according to claim 2, characterized in that: The integral welding strip pressing assembly (240) comprises A floating pressing block assemblies (241) arranged in sequence along the Y axis above the pressing base plate (211); Each of the floating pressure block assemblies (241) comprises a floating plate (243), a first vertical guide rail (244), at least one second pressing cylinder (242), and a aligning slot assembly; The floating plate (243) is connected to the driving end of the corresponding second pressing cylinder (242), and both ends of the floating plate (243) are located on the first vertical guide rail (244). A plurality of second pressing guide rods (245) are provided in the middle, and a compression spring (246) is connected to the bottom of each second pressing guide rod (245). At least one floating pressure block (247) is provided below each compression spring (246), and each floating pressure block (247) is used to press a welding strip (01); The floating plate (243) and the alignment slot assembly are sequentially arranged along the X-axis. The alignment slot assembly is used to position the welding strip (01), and comprises a plurality of alignment slots sequentially arranged on the pressing base plate (211) along the Y-axis, and a cover plate (248) located above the plurality of alignment slots. Each alignment slot corresponds to a welding strip (01), and the cover plate (248) limits the position deviation of the welding strip (01) by covering the alignment slot. The width of the welding strip groove on the top surface of the wire comb (230) is 0.2-1 mm.

4. A tape making device for BC battery welding according to any one of claims 1 to 3, characterized in that: The positioning and cutting mechanism (300) further comprises a positioning and cutting base plate (310), a positioning and cutting motor (320), and a first horizontal guide rail (330); The positioning tape cutting motor (320) and the first horizontal guide rail (330) are respectively arranged on the bottom surface and the top surface of the positioning tape cutting base plate (310); the positioning tape cutting frame (340) is arranged on the first horizontal guide rail (330) and is connected to the driving end of the positioning tape cutting motor (320); Each of the cutter assemblies (350) comprises two cutter units (351) symmetrically arranged in an upper and lower direction; each of the cutter units (351) comprises a cutter cylinder (352) arranged on a positioning and cutting frame (340), a second vertical guide rail (353), a cutter seat (354), and a cutter (355) arranged on the cutter seat (354); the cutter seat (354) is located on the second vertical guide rail (353) and connected to the driving end of the cutter cylinder (352); the two cutter seats (354) are used to move toward or away from each other under the action of the cutter cylinder (352); The cutters (355) of the two cutter units (351) cooperate with each other to cut the welding strip (01) therebetween; Each positioning comb assembly comprises two positioning comb units (361) corresponding to the two cutter units (351), and each positioning comb unit (361) comprises a positioning comb cylinder (362), a positioning comb guide rail (363), and a positioning plate (364) arranged on the positioning cutting frame (340); a driving end of the positioning comb cylinder (362) is connected to the positioning plate (364) arranged on the positioning comb guide rail (363) to drive the positioning plate (364) to move along the Y-axis direction, and a plurality of positioning steel needles (365) are arranged on the bottom surface of the positioning plate (364); The multiple positioning steel needles (365) of the two positioning comb units (361) are interlaced with each other, and the gaps between adjacent positioning steel needles (365) are used to pass through the welding strip (01) to straighten the welding strip (01).

5. The tape making device for BC battery welding according to claim 4, characterized in that: The solder strip pressing mechanism (400) comprises a double-row pressure needle assembly (410) and a single-row pressure needle assembly (420) sequentially arranged along the X-axis, and the single-row pressure needle assembly (420) and the double-row pressure needle assembly (410) both comprise a pressure needle motor (401), a lead screw (402), a third vertical guide rail (403), and a pressure needle mounting plate (404); the pressure needle mounting plate (404) is arranged on the third vertical guide rail (403) and is connected to the driving end of the pressure needle motor (401) via the lead screw (402); The double-row pressure needle assembly (410) is used to simultaneously press multiple solder strips (01), and two pressure needle units are provided on the bottom surface of the pressure needle mounting plate (404); the single-row pressure needle assembly (420) is used to assist the double-row pressure needle assembly (410) in pressing multiple solder strips (01), and one pressure needle unit is provided on the bottom surface of the pressure needle mounting plate (404); Each of the pressure pins (405) is fixed to the corresponding pressure pin mounting plate (404) by means of a threaded connection.

6. The tape making device for BC battery welding according to claim 5, characterized in that: The welding ribbon pressing mechanism (400) further includes a maintenance cylinder (430), the driving end of which is connected to the single-row pressure needle assembly (420) and the double-row pressure needle assembly (410) via a connecting plate, and is used to drive the single-row pressure needle assembly (420) and the double-row pressure needle assembly (410) to move to the upper position when the equipment is being maintained.

7. The tape making device for BC battery welding according to claim 5, characterized in that: The double-row traction mechanism (500) further comprises A traction assemblies (510) sequentially arranged along the Y axis, each traction assembly (510) comprising a traction base plate (511), a traction motor (512) and a traction guide rail (513) arranged on the top surface of the traction base plate (511); the clamping assembly (514) is arranged on the corresponding traction guide rail (513) and connected to the driving end of the traction motor (512); Each of the clamping units (516) includes a mounting plate (517) and a linked cylinder (5120), wherein the linked cylinder (5120) is arranged on the mounting plate (517) and is respectively connected to the plurality of clamping claws (519) via a plurality of piston rods (518), and the plurality of clamping claws (519) are sequentially arranged along the Y-axis direction; The lower clamping jaw (515) is arranged on a mounting plate (517) of a lower clamping unit (516).

8. The tape making device for BC battery welding according to claim 7, characterized in that: The belt-supporting spacing mechanism (600) comprises a spacing base plate (610), a first spacing motor (620) arranged on the top surface of the spacing base plate (610), and a spacing assembly (630) arranged on the first spacing motor (620); the spacing assembly (630) comprises a second spacing motor (631) and a second horizontal guide rail (632); The A adsorption components (640) are arranged on the second horizontal guide rail (632) and connected to the driving end of the second spacing motor (631); Each adsorption unit (641) comprises an adsorption base (642), a plurality of adsorption bars (643) and a plurality of positioning bosses (645), each adsorption bar (643) corresponds to a welding strip (01), a top surface of each adsorption bar (643) is provided with a plurality of adsorption holes (644), and two positioning bosses (645) are symmetrically arranged on both sides of an adsorption hole (644) for assisting in positioning the welding strip (01); the adsorption base (642) is connected to the driving end of the second spacing motor (631), and an adsorption gas path is arranged inside, and the adsorption gas path is respectively connected to each adsorption hole (644); the adsorption bars (643) of the two adsorption units (641) are staggered with each other, and are respectively used to adsorb welding strips (01) with odd and even numbers.

9. A method for making a tape for BC battery welding, using the tape making device for BC battery welding according to claim 1, characterized in that: The steps include: Step 1: All the welding strips (01) are sequentially passed through the wire comb (230), the corresponding cutter assembly (350), and the corresponding positioning comb assembly, and all the welding strips (01) are clamped by A clamping assemblies (514), and then all the welding strips (01) are compressed by two welding strip compression assemblies (220) and the overall welding strip compression assembly (240); Step 2: using the A cutter assemblies (350) of the positioning and cutting mechanism (300) to cut all the welding strips (01) to form the initial position of the welding strips (01), and then using the A positioning comb assemblies to straighten the welding strips (01); Step 3: Make A clamping components (514) loosen all the welding strips (01), and then move to the initial position of the welding strips (01); Step 4: Clamp all the welding strips (01) using A clamping components (514); Alternatively, a clamping unit (516) of A clamping assemblies (514) is used to clamp the welding strips (01) with even numbers, and a welding strip pressing assembly (220) of the straightening and pressing mechanism (200) is used to press the welding strips (01) with odd numbers; Clamping the welding strips (01) with odd numbers by a clamping unit (516) of A clamping assemblies (514), and clamping the welding strips (01) with even numbers by a welding strip clamping assembly (220) of the straightening and clamping mechanism (200); Step 5: Move the A clamping components (514) in the positive direction of the X-axis by a preset distance, and place the support belt spacing mechanism (600) below the welding belt (01); Step 6: Press down part or all of the pin pressing units on the solder ribbon pressing mechanism (400); Step 7: Move the positioning and cutting frame (340) of the positioning and cutting mechanism (300) in the positive direction of the X axis by a preset distance, so that the A cutter assemblies (350) cut the welding strip (01); Step 8: Move the two solder strip pressing assemblies (220) and the overall solder strip pressing assembly (240) in the positive direction of the Z axis to release the solder strip (01); Step 9: Move A adsorption components (640) in the positive direction of the X axis, and at the same time, one adsorption unit (641) of each adsorption component (640) adsorbs the welding ribbon (01) with an even or odd sequence number, thereby completing the ribbon making.

10. A method for making a strip for BC battery welding according to claim 9, characterized in that: The step 2 is specifically as follows: Step 2.1: In the two cutter units (351) of each cutter assembly (350), the cutter seat (354) is driven by the cutter cylinder (352) to move along the second vertical guide rail (353), and the two cutters (355) move toward each other to cut off all the welding strips (01), forming the initial position of the welding strips (01); Step 2.2: The cut welding strip (01) automatically slides into the corresponding positioning comb assembly area, and the positioning comb cylinder (362) drives the positioning plate (364) to move along the Y-axis direction on the positioning comb guide rail (363), pushing the welding strip (01) into the gap between the steel needles, correcting the position of the welding strip (01), and ensuring that the welding strip (01) is arranged neatly and parallel to the X-axis direction.

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