Solder strip laying device for battery piece and series welding machine

Abstract

The utility model discloses a welding strip laying device for a battery piece and a series welding machine. The welding strip laying device comprises a welding strip conveying mechanism, a welding strip cutting mechanism, a welding strip clamping and flattening mechanism, a welding strip tail clamping mechanism and at least one welding strip traction mechanism. The welding strip cutting mechanism comprises a supporting assembly. The power assembly and the at least two guiding pieces are arranged on the supporting assembly; the cutting-off assembly is movably arranged on the supporting assembly and connected with the power assembly and the at least two guiding pieces respectively, the cutting-off assembly comprises a connecting plate mechanism, and the connecting plate mechanism is in transmission connection with the power assembly; the first cutter and the second cutter are respectively and movably arranged on the connecting plate mechanism and are respectively connected with the corresponding guide pieces; and the cover plate is fixedly arranged on the connecting plate mechanism. By reducing the longitudinal height of the welding strip cutting mechanism, the welding strip cutting mechanism can be arranged close to one side of the welding strip conveying mechanism, so that the traction stroke of the welding strip is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of string welding machines, and in particular to a welding strip laying device and a string welding machine for battery cells. Background Art

[0002] The stringer is one of the important equipment in the battery cell production process. It is used to weld multiple battery cells into a string of batteries. Before welding, the soldering tape needs to be taken out from the soldering tape feeding mechanism and cut using the soldering tape cutting mechanism. The cut soldering tape with a predetermined length is transported to the welding table of the stringer to receive welding.

[0003] Conventional solder strip cutting assemblies generally use upper and lower cutter mechanisms that are longitudinally arranged, wherein the lower cutter mechanism is fixedly arranged, and the upper cutter mechanism moves downward to cooperate with the lower cutter mechanism to cut the solder strip. For example, the publication number CN118143338A provides a welding strip straightening and cutting mechanism for BC battery cells, which includes a support component; a welding strip front pressing component and a welding strip rear pressing component movably arranged on the support component in sequence; a welding strip cutting component arranged on the support component and arranged on one side of the welding strip rear pressing component; a welding strip extending driving component and a welding strip straightening component respectively arranged on the support component, the welding strip extending driving component is fixedly connected to the welding strip rear pressing component, and the welding strip straightening component is fixedly connected to the welding strip front pressing component; the welding strip front pressing component and the welding strip rear pressing component both include two welding strip clamping mechanisms; the welding strip cutting component includes a second lower support frame fixedly arranged on the support component; a second upper pressing frame movably arranged on the second lower support frame and capable of flipping relative to the second lower support frame; second pins respectively penetrating the second lower support frame and the second upper pressing frame; a welding strip cutting driving mechanism and a lower cutter arranged on the second lower support frame are connected in sequence; an upper cutter fixedly arranged on the second upper pressing frame and arranged opposite to the lower cutter. The upper cutter in this technical solution is movably arranged above the lower cutter, occupying a certain longitudinal height, so that the longitudinal space occupied by the solder tape cutting assembly is relatively large. Since other components need to be avoided, the solder tape cutting assembly is arranged at a position far away from the transmission line for laying the solder tape, so that the solder tape traction assembly needs to spend a certain amount of time to convey the cut fixed-length solder tape, which will affect the production efficiency to a certain extent. At the same time, in order to increase the production speed, two pairs of solder tape clamping devices are generally used for relay to complete the traction and transportation actions, which increases the complexity and cost of the equipment to a certain extent. Therefore, a solder tape laying device and a stringing machine for battery cells are provided. Utility Model Content

[0004] One of the purposes of the utility model is to provide a solder tape laying device and a stringer for battery cells, so as to solve the problem that the existing solder tape cutting mechanism is far away from the transmission line for laying the solder tape, affecting the production efficiency.

[0005] The utility model can realize a welding strip laying device and a string welding machine for a battery cell by the following technical scheme:

[0006] The utility model discloses a welding strip laying device for a battery cell, comprising a welding strip transmission mechanism, which transmits the battery cell, welding strip and a tooling jig pressed on the welding strip together and passes through a welding device; a welding strip tail clamp mechanism, which is arranged at the input end of the welding strip transmission mechanism, and the welding strip tail clamp mechanism can clamp the welding strip; a welding strip cutting mechanism, which is arranged close to one side of the welding strip transmission mechanism input end and arranged at one side of the welding strip tail clamp mechanism; a welding strip clamping and flattening mechanism, which is arranged at one side of the welding strip cutting mechanism, and the welding strip clamping and flattening mechanism can clamp and flatten the welding strip; a pair of welding strip traction mechanisms, which are movably arranged at the side of the welding strip transmission mechanism, and the pair of welding strip traction mechanisms include two traction clamping claw assemblies, and the two traction clamping claw assemblies are respectively installed on two translation lifting assemblies; the two traction clamping claw assemblies perform alternating and repeated movements through the two translation lifting assemblies to lay the welding strip on the welding strip transmission mechanism, and when one group of traction clamping claw assemblies completes the welding strip laying, the other group of traction clamping claw assemblies is ready to grab and pull the welding strip;

[0007] Among them, the welding strip cutting mechanism includes a support assembly; a power assembly and at least two guide members respectively arranged on the support assembly; a cutting assembly movably arranged on the support assembly and respectively connected to the power assembly and at least two guide members, which includes a connecting plate mechanism, the connecting plate mechanism is movably arranged on the support assembly and is transmission-connected to the power assembly; a first cutter and a second cutter respectively movably arranged on the connecting plate mechanism, both of which are respectively connected to the corresponding guide members; a cover plate fixedly arranged on the connecting plate mechanism.

[0008] In one embodiment, at least one solder strip following mechanism is provided between the solder strip clamping and flattening mechanism and the solder strip cutting mechanism.

[0009] In one embodiment, the connecting plate mechanism includes a connecting plate body, both ends of which are movably arranged on the supporting assembly; a connecting seat fixedly arranged on the connecting plate body and transmission-connected to the power assembly; at least one guide rail fixedly arranged on the connecting plate body; and a plurality of guide seats movably arranged on at least one of the guide rails, which are respectively fixedly connected to the corresponding first cutter and second cutter.

[0010] In one embodiment, at least one guide groove is provided through each of the first cutter and the second cutter, and the guide member is movably provided in the corresponding guide groove.

[0011] In one embodiment, a plurality of small cutters are disposed on the first cutter and the second cutter, the plurality of small cutters are evenly distributed and a first gap is disposed between adjacent small cutters.

[0012] In one embodiment, the welding ribbon cutting mechanism further includes a limiting component, which is disposed on the cutting component, and the limiting component guides and positions the cutting component when cutting a plurality of welding ribbons.

[0013] In one embodiment, the solder strip clamping and flattening mechanism includes a telescopic support assembly, which is fixedly arranged on one side of the solder strip cutting mechanism; the telescopic support assembly is movably provided with a first movable seat and a second movable seat; a solder strip clamping assembly and a solder strip flattening assembly are respectively fixedly arranged on the first movable seat and the second movable seat; the telescopic support assembly is also provided with a first telescopic cylinder and a second telescopic cylinder, which are respectively connected to the first movable seat and the second movable seat in a transmission manner.

[0014] In one embodiment, the welding strip flattening assembly includes a flattening lower mold, which is fixedly mounted on the second movable seat; a flipping structure detachably fixedly mounted on the flattening lower mold, which can rotate relative to the flattening lower mold; a flattening upper mold and a flattening driving structure respectively arranged on the flipping structure and transmission-connected, and the flattening upper mold is arranged opposite to the flattening lower mold.

[0015] In one embodiment, the welding tape transmission mechanism includes a support reference plate; a transmission drive component and a transmission tape body respectively arranged on the support reference plate, and the transmission drive component drives the transmission tape body to move on the support reference plate.

[0016] The cell stringing machine of the utility model comprises the welding tape laying device described in any one of the above items; and also comprises a cell conveying device, a welding tape feeding device, a cell jig handling device, a welding device, a jig handling device, a jig conveying device and a stringing device;

[0017] Among them, the battery cell conveying device conveys the battery cells required for battery string welding; the solder tape feeding device places the solder tape roll to provide the solder tape required for battery string welding; the battery cell jig transporting device transports the battery cells at the output end of the battery cell conveying device and the tooling jig at the output end of the conveying jig to the input end of the solder tape transmission mechanism; the welding device is arranged between the input end and the output end of the solder tape transmission mechanism, and it welds the battery cells and solder tapes on the solder tape transmission mechanism; the jig transporting device transports the tooling jig from the output end of the solder tape transmission mechanism to the input end of the jig conveying device; the jig conveying device transports the reflowed tooling jig from the input end of the jig conveying device to its output end; the string output device performs string processing on the battery strings obtained by welding by the welding device, and outputs battery strings of predetermined lengths.

[0018] Compared with the prior art, the utility model has the following beneficial effects:

[0019] The utility model discloses a welding strip laying device and a string welding machine for battery cells, through the cooperation of a power component, a guide and two cutters, the lifting and cutting power of the two cutters are concentrated on one power by using a cam follower mechanism, so that when the welding strip needs to be cut, the cutter can be lifted to a specified position, and at the same time, the power does not need to be changed in direction to realize power output on the cutter to realize welding strip cutting; after the welding strip is cut, the two cutters are separated while descending, so that the whole cutting action is reduced, thereby reducing the longitudinal height of the welding strip cutting mechanism, so that the welding strip cutting mechanism can be close to the side of the transmission line for laying the welding strip, and to a certain extent, the action rhythm and production capacity of the string welding machine are improved; at the same time, by reducing the longitudinal height of the welding strip cutting mechanism, the welding strip cutting mechanism can be close to the side of the welding strip transmission mechanism, thereby reducing the welding strip traction stroke and improving production efficiency; the welding strip cutting mechanism has the characteristics of small structural space occupation and strong compatibility, and it is more convenient and quick to replace the welding strip to realize rapid switching of production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of a welding strip laying device for a battery cell of the utility model;

[0022] Figure 2 yes Figure 1The utility model is a schematic diagram of the exploded structure of a welding ribbon laying device for a battery cell, including a welding ribbon clamping and flattening mechanism, a welding ribbon cutting mechanism, a welding ribbon tail clamping mechanism, a welding ribbon pulling mechanism, a welding ribbon transmission mechanism and a welding ribbon following mechanism;

[0023] Figure 3 yes Figure 2 The exploded structural diagram of the welding strip clamping and flattening assembly shown;

[0024] Figure 4 yes Figure 2 The structural schematic diagram of the welding strip cutting mechanism shown;

[0025] Figure 5 yes Figure 4 An exploded structural diagram of the welding ribbon cutting mechanism shown, including a cutting assembly;

[0026] Figure 6 yes Figure 5 An exploded schematic diagram of the cut-off assembly shown;

[0027] Figure 7 yes Figure 2 The structural schematic diagram of the welding strip traction mechanism shown;

[0028] Figure 8 yes Figure 2 A practical diagram of the connection structure of the solder strip tail clamp mechanism and the solder strip transmission mechanism shown;

[0029] Fig. 9 yes Figure 2 Schematic diagram of the structure of the welding strip following mechanism shown.

[0030] Indications in the figure: 10, welding strip clamping and flattening mechanism; 11, telescopic support assembly; 111, first movable seat; 112, second movable seat; 113, first telescopic cylinder; 114, second telescopic cylinder; 12, welding strip clamping assembly; 13, welding strip flattening assembly; 131, flattening lower die; 132, flipping structure; 133, flattening upper die; 134, flattening driving structure; 20, welding strip cutting mechanism; 21, cutting support assembly; 22, cutting power assembly; 23, guide member; 24, cutting assembly; 241, connecting plate mechanism; 2411, connecting plate body; 2412, connecting seat; 2413, guide rail; 2414, guide seat; 242, first cutter; 2421, guide To the groove; 2422, small cutter; 2423, fixing hole; 2424, guide cavity; 243, second cutter; 244, cover plate; 25, limit assembly; 251, limit support plate; 252, limit guide column group; 30, welding ribbon tail clamp mechanism; 31, tail clamp support assembly; 32, lifting assembly; 33, tail clamp assembly; 40, welding ribbon traction mechanism; 41, traction clamp assembly; 42, translation lifting assembly; 50, welding ribbon transmission mechanism; 51, support reference plate; 52, transmission drive assembly; 53, transmission belt body; 60, welding ribbon following mechanism; 61, fixed plate; 62, follower lateral motion assembly; 63, follower lifting assembly; 64, lift follower plate; 641, limit groove. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. The components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] See also Figure 1 and Figure 2As shown, the utility model is a welding ribbon laying device for battery cells, which mainly comprises a welding ribbon clamping and flattening mechanism 10, a welding ribbon cutting mechanism 20, a welding ribbon tail clamping mechanism 30, a pair of welding ribbon pulling mechanisms 40 and a welding ribbon transmission mechanism 50; the welding ribbon transmission mechanism 50 transmits the fixed-length welding ribbon cut by the welding ribbon cutting mechanism 20, so that the fixed-length welding ribbon and the corresponding battery cells are welded in series into a battery string; the welding ribbon cutting mechanism 20 is arranged close to one side of the input end of the welding ribbon transmission mechanism 50 and is in the same straight line with the welding ribbon transmission mechanism 50, and it flattens a plurality of welding ribbons according to a preset length. The welding strip clamping and flattening mechanism 10 is arranged on one side of the welding strip cutting mechanism 20, which clamps and flattens the welding strip, so that the welding strip can be better welded to the battery cell; the welding strip tail clamping mechanism 30 is horizontally arranged at the input end of the welding strip transmission mechanism 50 and on one side of the welding strip cutting mechanism 20, which clamps or loosens the welding strip, so as to realize the cutting and laying operation of the welding strip; a pair of welding strip pulling mechanisms 40 are movably arranged on the side of the welding strip transmission mechanism 50, which pulls the welding strip and lays the welding strip on the welding strip transmission mechanism 50. In this embodiment, a pair of welding strip pulling mechanisms 40 are respectively arranged on the side of the welding strip transmission mechanism 50, and the two take turns to pull the welding strip. In other embodiments, a weld ribbon following mechanism 60 is provided between the weld ribbon clamping and flattening mechanism 10 and the weld ribbon cutting mechanism 20. The weld ribbon following mechanism 60 guides and lifts the weld ribbon between the weld ribbon clamping and flattening mechanism 10 and the weld ribbon cutting mechanism 20, thereby effectively preventing the weld ribbon from jumping during the pulling process.

[0034] See also Figure 1-Figure 3 As shown, in this embodiment, the solder strip clamping and flattening mechanism 10 includes a telescopic support assembly 11, a solder strip clamping assembly 12 and a solder strip flattening assembly 13; the telescopic support assembly 11 is fixedly arranged on one side of the solder strip cutting mechanism 12; the solder strip clamping assembly 12 and the solder strip flattening assembly 13 are respectively movably arranged on the telescopic support assembly 11, and the solder strip straightening and flattening operations are realized through the two. Specifically, the telescopic support assembly 11 is movably arranged with a first movable seat 111 and a second movable seat 112, and the solder strip clamping assembly 12 and the solder strip flattening assembly 13 are respectively fixedly arranged on the first movable seat 111 and the second movable seat 112; the telescopic support assembly 11 is also provided with a first telescopic cylinder 113 and a second telescopic cylinder 114, which are respectively connected to the first movable seat 111 and the second movable seat 112 in transmission, thereby respectively driving the solder strip clamping assembly 12 and the solder strip flattening assembly 13 to move on the telescopic support assembly 11, and realizing the operation of straightening the solder strip. Specifically, the welding strip clamping assembly 12 adopts the existing technology, so its specific structure and working process are not described here in detail, as long as it meets the requirements of this application.

[0035] See also Figure 3As shown, in this embodiment, the flattening assembly 13 of the welding strip includes a flattening lower die 13, a flipping structure 132, a flattening upper die 133 and a flattening driving structure 134; the flattening lower die 13 is fixedly arranged on the second movable seat 112; the flipping structure 132 is detachably fixedly arranged on the flattening lower die 13 and can rotate relative to the flattening lower die 13, so as to facilitate setting the welding strip between the flattening lower die 131 and the flattening upper die 133; the flattening upper die 133 and the flattening driving structure 134 are respectively arranged on the flipping structure 132 and the two are connected by transmission, the flattening upper die 133 is arranged relative to the flattening lower die 131, and the flattening driving structure 134 drives the flattening upper die 133 to move downward, so as to perform a flattening operation on the welding strip arranged on the flattening lower die 131. Specifically, the flipping structure 132 and the flattening driving structure 134 both adopt the existing technology, so the specific structure and working process of the two are not described here, as long as the present application is satisfied.

[0036] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in this embodiment, the welding strip cutting mechanism 20 includes a support assembly 21, a cutting power assembly 22, at least two guides 23, a cutting assembly 24 and a limiting assembly 25; the support assembly 21 is a supporting body, which is fixedly mounted on the side of the welding strip clamping and flattening mechanism 10; the cutting power assembly 22 and at least two guides 23 are respectively arranged on the support assembly 21; the cutting assembly 24 is movably arranged on the support assembly 21 and is respectively connected to the cutting power assembly 22 and at least two guides 23, the cutting power assembly 22 drives the cutting assembly 24 to move longitudinally, and at least two guides 23 perform limiting and guiding operations on the cutting assembly 24 and convert its longitudinal movement into lateral movement; the limiting assembly 25 is arranged on the cutting assembly 24, which performs guiding and positioning operations on the cutting assembly 24 when cutting multiple welding strips. Specifically, the cutting power assembly 22 adopts a telescopic cylinder.

[0037] See also Figure 4-Figure 6As shown, in this embodiment, the cutting assembly 24 includes a connecting plate mechanism 241, a first cutter 242, a second cutter 243 and a cover plate 244; the connecting plate mechanism 241 is movably arranged on the support assembly 21 and is transmission-connected to the cutting power assembly 22, and the cutting power assembly 22 drives the connecting plate mechanism 241 to move longitudinally. Specifically, the two ends of the connecting plate mechanism 241 are movably arranged on the support assembly 21; the first cutter 242 and the second cutter 243 are movably arranged on the connecting plate mechanism 241 and are respectively connected to the corresponding guide members 23, and the two can move toward or away from each other. When the first cutter 242 and the second cutter 243 move toward each other, the two cooperate to cut the welding strip; the cover plate 244 is fixedly arranged on the connecting plate mechanism 241, and the two form a hollow cavity, and the first cutter 142 and the second cutter 243 are respectively arranged in the cavity.

[0038] See also Figure 6 As shown, the connecting plate mechanism 241 includes a connecting plate body 2411, a connecting seat 2412, at least one guide rail 2413 and a plurality of guide seats 2414; both ends of the connecting plate body 2411 are movably arranged on the supporting assembly 21; the connecting seat 2412 is fixedly arranged on the connecting plate body 2411 and is transmission-connected with the cutting power assembly 22, and the cutting power assembly 22 drives the connecting plate body 2411 to move longitudinally through the connecting seat 2412; at least one guide rail 2413 is fixedly arranged on the connecting plate body 2411; a plurality of guide seats 2414 are respectively movably arranged on at least one guide rail 2413 and are respectively fixedly connected with the corresponding first cutter 242 and second cutter 243, thereby guiding the lateral movement of the first cutter 242 and the second cutter 243. In this embodiment, a guide rail 2413 is fixedly disposed on the connecting plate body 2411; four guide seats 2414 are movably disposed on the guide rail 2413, two of which are fixedly connected to the first cutter 242 by screws, and the other two guide seats 2414 are fixedly connected to the second cutter 243 by screws.

[0039] See also Figure 6As shown, at least one guide groove 2421 is provided through the first cutter 242, and the guide member 23 is movably provided in the corresponding guide groove 2421. Through the cooperation of the guide member 23 and the guide groove 2421, the longitudinal movement of the first cutter 242 is converted into a transverse movement, so as to cooperate with the second cutter 243 to cut the welding strip. Specifically, a plurality of small cutters 2422 are provided on one end of the first cutter 242, and the plurality of small cutters 2422 are evenly distributed and a first gap is provided between adjacent small cutters 2422, and the welding strip can be provided in the corresponding first gap; at least one fixing hole 2423 and at least one guide cavity 2424 are provided through the first cutter 242, and the screw is fixedly connected to the corresponding guide seat 2414 through the fixing hole 2423, so as to realize the transverse guiding operation of the first cutter 242; the guide seat 2414 fixedly connected to the second cutter 243 movably passes through the first cutter 242 through the corresponding guide cavity 2424. Specifically, the structure of the second cutter 243 is similar to that of the first cutter 242 , so the specific structure thereof will not be described in detail herein.

[0040] See also Figure 4 and Figure 5 As shown, in this embodiment, the limiting assembly 25 includes a limiting support plate 251 and a plurality of limiting guide column groups 252; the limiting support plate 251 is arranged on the connecting plate mechanism 241; the plurality of limiting guide column groups 252 are fixedly arranged on the limiting support plate 251 and are arranged on the sides of the cutting parts of the first cutter 242 and the second cutter 243; specifically, the limiting guide column group 252 includes two sub-limiting guide columns, and a second gap is arranged between the two sub-limiting guide columns, and the welding strip can be arranged in the corresponding second gap.

[0041] See also Figure 1 , Figure 2 and Figure 7 As shown, in this embodiment, a pair of the solder strip pulling mechanisms 40 include two pulling jaw assemblies 41 and two translation lifting assemblies 42, and the two pulling jaw assemblies 41 are respectively mounted on the two translation lifting assemblies 42; the two pulling jaw assemblies 41 are alternately and repeatedly moved by the two translation lifting assemblies 42 to lay the solder strip on the solder strip transmission mechanism 50, and when one group of pulling jaw assemblies 41 completes the laying of the solder strip, the other group of pulling jaw assemblies 41 is ready to grab and pull the solder strip. Specifically, the pulling jaw assemblies 41 and the translation lifting assemblies 42 are both based on the existing technology, so the specific structures and working processes of the three are not described here, as long as they meet the requirements of this application.

[0042] See also Figure 2 and Figure 8As shown, in the present embodiment, the solder strip tail clamp mechanism 30 comprises a tail clamp support assembly 31, a lifting assembly 32 and a tail clamp assembly 33; the tail clamp support assembly 31 is fixedly arranged on the input end of the solder strip transmission mechanism 50; the lifting assembly 32 is fixedly arranged on the tail clamp support assembly 31 and is transmission-connected with the tail clamp assembly 33 arranged above it, and drives the tail clamp assembly 33 to clamp or release the solder strip; specifically, the lifting assembly 32 adopts a telescopic cylinder; the tail clamp assembly 33 adopts the existing technology, so its specific structure and working process are not described here, as long as it meets the present application; a plurality of limiting guide grooves are also arranged on the tail clamp assembly 33, and the limiting guide grooves are used to guide the solder strip, thereby improving the positioning accuracy of the solder strip.

[0043] See also Figure 1 , Figure 2 and Figure 8 As shown, in this embodiment, the solder ribbon transmission mechanism 50 includes a support reference plate 51, a transmission drive assembly 52 and a transmission belt body 53; the support reference plate 51 is the support body; the transmission drive assembly 52 and the transmission belt body 53 are respectively arranged on the support reference plate 51, and the transmission drive assembly 52 drives the transmission belt body 53 to move on the support reference plate 51, thereby performing a transmission operation on the solder ribbon and the battery cell arranged on the transmission belt body 53. Specifically, the transmission drive assembly 52 adopts the existing technology, so its specific structure and working process are not described here, as long as it meets the requirements of this application.

[0044] See also Figure 1 , Figure 2 and Fig. 9 As shown, in this embodiment, the welding strip following mechanism 60 includes a fixed plate 61, a following transverse motion component 62, a following lifting component 63 and a lifting following plate 64; the fixed plate 61 is a supporting body; the following transverse motion component 62 is arranged on the fixed plate 61; the following lifting component 63 is arranged on the following transverse motion component 62, and the following transverse motion component 62 drives the following lifting component 63 to move in the X-axis direction; the lifting following plate 64 is arranged on the following lifting component 63, and the following lifting component 63 drives the lifting following plate 64 to move in the Z-axis direction, thereby realizing the following lifting limit guiding operation of the welding strip. Specifically, the following transverse motion component 62 and the following lifting component 63 both adopt the existing technology, so the specific structure and working process of the two are not described here, as long as they meet the requirements of this application; a plurality of limit grooves 641 are arranged on the lifting following plate 64, and the limit grooves 641 are used to perform limit guiding operations on the welding strip arranged therein.

[0045] The utility model provides a string welding machine for battery cells, including any of the above-mentioned welding tape laying devices, and also including a battery cell conveying device, a welding tape feeding device, a battery cell jig handling device, a welding device, a jig handling device, a jig conveying device and a stringing device; wherein the battery cell conveying device conveys the battery cells required for battery string welding; the welding tape feeding device places the welding tape roll to provide the welding tape required for battery string welding; the battery cell jig handling device conveys the battery cells at the output end of the battery cell conveying device and the tooling jig at the output end of the conveying jig conveying device to the input end of the welding tape transmission mechanism 50; the welding tape transmission device The conveying mechanism 50 conveys the battery cell, the welding strip and the jig pressed on the welding strip together and passes through the welding device; the welding device is arranged between the input end and the output end of the welding strip conveying mechanism 50, and welds the battery cell and the welding strip on the welding strip conveying mechanism 50; the jig conveying device conveys the jig from the output end of the welding strip conveying mechanism 50 to the input end of the jig conveying device; the jig conveying device conveys the reflowed jig from the input end of the jig conveying device to its output end; the string output device performs string processing on the battery string obtained by the welding device, and outputs a battery string of predetermined length.

[0046] It should be noted that the specific working process of a solder strip laying device and a stringing machine for a battery cell is as follows: first, the solder strip is flattened by the solder strip clamping and flattening mechanism 10; when the solder strip needs to be cut, the cutting power assembly 22 drives the cutting assembly 24 and the limiting assembly 25 to move upward, and the corresponding guide members 23 respectively cooperate with the guide grooves 2421 on the first cutter 242 and the second cutter 243, and at the same time, through the guiding effect of the guide rail 2413 and the guide seat 2414, the first cutter 242 and the second cutter 243 move toward each other, thereby performing a preset length cutting operation on multiple solder strips; when avoidance is required, the cutting power assembly 22 drives the cutting assembly 24 and the limiting assembly 25 to move downward, and by making the first cutter 242 and the second cutter 243 descend and move back to back at the same time, the first cutter 242 and the second cutter 243 are separated and effectively avoided at the same time; then the fixed-length solder strip is laid on the solder strip transmission mechanism 50 through the solder strip traction mechanism 40, thereby realizing the solder strip laying operation.

[0047] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0048] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A welding ribbon laying device for a battery cell, characterized in that: include: A welding ribbon conveying mechanism, which conveys the battery cell, welding ribbon and the tooling jig pressed on the welding ribbon together through the welding device; A solder strip tail clamp mechanism, which is arranged at the input end of the solder strip transmission mechanism, and the solder strip tail clamp mechanism can clamp the solder strip; A solder strip cutting mechanism, which is arranged close to one side of the input end of the solder strip transmission mechanism and arranged on one side of the solder strip tail clamp mechanism; A welding strip clamping and flattening mechanism, which is arranged on one side of the welding strip cutting mechanism, and the welding strip clamping and flattening mechanism can clamp and flatten the welding strip; A pair of solder strip traction mechanisms, which are movably arranged on the side of the solder strip transmission mechanism, and the pair of solder strip traction mechanisms include two traction clamping claw assemblies, and the two traction clamping claw assemblies are respectively installed on two translation lifting assemblies; the two traction clamping claw assemblies are alternately and repeatedly moved by the two translation lifting assemblies to lay the solder strip on the solder strip transmission mechanism, and when one group of traction clamping claw assemblies completes the laying of the solder strip, the other group of traction clamping claw assemblies is ready to grab and pull the solder strip; Among them, the welding strip cutting mechanism includes a support assembly; a power assembly and at least two guide members respectively arranged on the support assembly; a cutting assembly movably arranged on the support assembly and respectively connected to the power assembly and at least two guide members, which includes a connecting plate mechanism, the connecting plate mechanism is movably arranged on the support assembly and is transmission-connected to the power assembly; a first cutter and a second cutter respectively movably arranged on the connecting plate mechanism, both of which are respectively connected to the corresponding guide members; a cover plate fixedly arranged on the connecting plate mechanism.

2. A welding ribbon laying device for a battery cell according to claim 1, characterized in that: At least one solder strip following mechanism is arranged between the solder strip clamping and flattening mechanism and the solder strip cutting mechanism.

3. The device for laying a solder strip for a battery cell according to claim 1, characterized in that: The connecting plate mechanism comprises a connecting plate body, both ends of which are movably arranged on the supporting assembly; a connecting seat fixedly arranged on the connecting plate body and transmission-connected to the power assembly; At least one guide rail is fixedly arranged on the connecting plate body; and a plurality of guide seats are movably arranged on at least one of the guide rails and are respectively fixedly connected with the corresponding first cutter and the second cutter.

4. The device for laying a solder strip for a battery cell according to claim 3, characterized in that: At least one guide groove is provided through the first cutter and the second cutter, and the guide member is movably provided in the corresponding guide groove.

5. The device for laying solder strips for solar cells according to claim 4, characterized in that: A plurality of small cutters are arranged on the first cutter and the second cutter. The plurality of small cutters are evenly distributed and a first gap is arranged between adjacent small cutters.

6. The device for laying a solder strip for a battery cell according to claim 1, characterized in that: The welding ribbon cutting mechanism further comprises a limiting component, which is arranged on the cutting component, and the limiting component guides and positions the cutting component when cutting a plurality of welding ribbons.

7. The device for laying a solder strip for a battery cell according to claim 1, characterized in that: The solder strip clamping and flattening mechanism includes a telescopic support assembly, which is fixedly arranged on one side of the solder strip cutting mechanism; the telescopic support assembly is movably provided with a first movable seat and a second movable seat; a solder strip clamping assembly and a solder strip flattening assembly are respectively fixedly arranged on the first movable seat and the second movable seat; the telescopic support assembly is also provided with a first telescopic cylinder and a second telescopic cylinder, which are respectively connected to the first movable seat and the second movable seat in a transmission manner.

8. The device for laying a solder strip for a battery cell according to claim 7, characterized in that: The welding strip flattening assembly includes a flattening lower die, which is fixedly arranged on the second movable seat; a flip structure detachably fixedly arranged on the flattening lower die, which can rotate relative to the flattening lower die; a flattening upper die and a flattening driving structure respectively arranged on the flip structure and transmission-connected, and the flattening upper die is arranged opposite to the flattening lower die.

9. The device for laying a solder strip for a battery cell according to claim 1, characterized in that: The welding belt transmission mechanism comprises a supporting reference plate; a transmission driving component and a transmission belt body respectively arranged on the supporting reference plate, and the transmission driving component drives the transmission belt body to move on the supporting reference plate.

10. A string welding machine for battery cells, characterized in that: The welding tape laying device comprising any one of claims 1 to 9; It also includes a cell conveying device, a solder strip feeding device, a cell jig handling device, a welding device, a jig handling device, a jig conveying device and a string discharging device; Among them, the battery cell conveying device conveys the battery cells required for battery string welding; the solder tape feeding device places the solder tape roll to provide the solder tape required for battery string welding; the battery cell jig transporting device transports the battery cells at the output end of the battery cell conveying device and the tooling jig at the output end of the jig conveying device to the input end of the solder tape transmission mechanism; the welding device is arranged between the input end and the output end of the solder tape transmission mechanism, and it welds the battery cells and solder tapes on the solder tape transmission mechanism; the jig transporting device transports the tooling jig from the output end of the solder tape transmission mechanism to the input end of the jig conveying device; the jig conveying device transports the reflowed tooling jig from the input end of the jig conveying device to its output end; the string output device performs string processing on the battery strings obtained by welding by the welding device, and outputs battery strings of predetermined lengths.

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