Solder strip clamping and flattening mechanism for battery piece and series welding machine

Abstract

The utility model discloses a welding strip clamping and flattening mechanism for a battery piece and a series welding machine. The welding strip clamping and flattening mechanism comprises a telescopic supporting assembly. The welding strip flattening assembly and the welding strip clamping assembly are movably and oppositely arranged on the telescopic supporting assembly; the welding strip flattening assembly comprises a mounting seat mechanism which is movably arranged on the telescopic supporting assembly; the power driving mechanism is arranged on the mounting seat mechanism; the transmission mechanism is movably arranged on the mounting seat mechanism in a penetrating manner and is in transmission connection with the power driving mechanism; the flattening bottom die is fixedly arranged on the mounting seat mechanism; and the plurality of flattening shafts are respectively arranged below the transmission mechanism and are opposite to the flattening bottom dies. According to the welding strip flattening and clamping device, the welding strip flattening assembly and the welding strip clamping assembly are matched, so that the welding strip is flattened, clamped and straightened.

Description

Technical Field

[0001] The utility model relates to the technical field of flattening mechanisms, and in particular to a welding strip clamping and flattening mechanism and a stringing 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] Publication number CN118143338A provides a welding strip straightening and cutting mechanism for BC battery cells, which includes a support assembly; a welding strip front pressing assembly and a welding strip rear pressing assembly that are movably arranged on the support assembly in sequence; a welding strip cutting assembly that is arranged on the support assembly and arranged on one side of the welding strip rear pressing assembly; a welding strip extending driving assembly and a welding strip straightening assembly that are respectively arranged on the support assembly, the welding strip extending driving assembly is fixedly connected to the welding strip rear pressing assembly, and the welding strip straightening assembly is fixedly connected to the welding strip front pressing assembly; the welding strip front pressing assembly and the welding strip rear pressing assembly both include two welding strip clamping mechanisms. Although this technical solution can realize the welding strip straightening and cutting function. However, currently, round welding ribbons are mainly used in multi-busbar string welding machines. The round welding ribbons are prone to rolling and thus offset during the process of pulling, cutting and laying. This may result in cold welding or insufficient welding of the welding ribbons when the battery cells are welded into strings, making it impossible for the welding ribbons to be accurately welded to the busbars of the battery cells, thereby making the quality of the produced photovoltaic battery strings substandard. Therefore, a welding ribbon clamping and flattening mechanism for battery cells and a string welding machine are provided. Utility Model Content

[0004] One of the purposes of the utility model is to provide a welding strip clamping and flattening mechanism and a stringing machine for battery cells, so as to solve the problem that the existing welding strip clamping mechanism is not capable of flattening the welding strip.

[0005] The utility model provides a welding strip clamping and flattening mechanism and a string welding machine for a battery cell, which can be realized by the following technical solutions:

[0006] The utility model discloses a welding strip clamping and flattening mechanism for a battery cell, comprising a telescopic support assembly; a welding strip flattening assembly, which is movably arranged on the telescopic support assembly; a welding strip clamping assembly, which is movably arranged on the telescopic support assembly and is arranged opposite to the welding strip flattening assembly, wherein the welding strip clamping assembly cooperates with the welding strip flattening assembly to realize the clamping and straightening operation of the welding strip;

[0007] Among them, the welding strip flattening assembly includes a mounting seat mechanism, which is movably arranged on the telescopic support assembly; a power drive mechanism arranged on the mounting seat mechanism; a transmission mechanism movably penetrating the mounting seat mechanism and connected to the power drive mechanism; a flattening bottom mold fixedly arranged on the mounting seat mechanism; and a plurality of flattening shafts respectively arranged under the transmission mechanism and opposite to the flattening bottom mold.

[0008] In one embodiment, a first movable seat and a second movable seat are movably provided on the telescopic support assembly, and the welding ribbon flattening assembly and the welding ribbon clamping assembly are fixedly provided on the first movable seat and the second movable seat, respectively.

[0009] In one embodiment, the telescopic support assembly is further provided with a first telescopic cylinder and a second telescopic cylinder, which are respectively transmission-connected to the first movable seat and the second movable seat.

[0010] In one embodiment, the mounting seat mechanism includes a lower mounting seat fixedly disposed on the first movable seat; and an upper mounting seat disposed on the lower mounting seat and capable of rotating relative to the lower mounting seat.

[0011] In one embodiment, the power drive mechanism includes a cylinder mounting seat, which is fixed on the upper mounting seat; a plurality of flattening cylinders respectively fixed on the sides of the cylinder mounting seat and respectively connected to the transmission mechanism; and an air distributor block fixed on the upper mounting seat and respectively connected to the plurality of flattening cylinders, which is a hollow cavity.

[0012] In one embodiment, the transmission mechanism includes a guide block, which is fixed on the upper mounting seat and arranged below the cylinder mounting seat; a plurality of transmission rods movably passing through the guide block, which are respectively connected to the corresponding flattening cylinders.

[0013] In one embodiment, a plurality of guide holes are formed through the guide block; and a plurality of transmission rods movably penetrate the guide block through the corresponding guide holes.

[0014] In one embodiment, the welding strip clamping assembly includes a clamping base, which is fixedly mounted on the second movable seat; a movable seat arranged on the clamping base and capable of rotating relative to the clamping base; a clamping cylinder and an upper pressure block which are transmission-connected to the movable seat, and the upper pressure block is movably mounted on the movable seat and is arranged opposite to the clamping base.

[0015] In one embodiment, a plurality of limiting columns are evenly arranged on the clamping base, which perform limiting and guiding operations on the corresponding welding strips.

[0016] The utility model provides a stringing machine for battery cells, comprising a welding tape laying device, wherein the welding tape laying device comprises the welding tape clamping and flattening mechanism described in any one of the above items;

[0017] 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;

[0018] Among them, 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 conveying device conveys the battery cells at the output end of the battery cell conveying device and the jig at the output end of the jig conveying device to the input end of the battery cell welding tape transmission device; the welding tape laying device pulls the welding tape on the welding tape feeding device and lays it on the battery cell on the battery cell welding tape transmission device; the battery cell welding tape transmission device transfers the battery cell, welding tape and the jig pressed on the welding tape together The battery cells are transported and passed through the welding device; the welding device is arranged between the input end and the output end of the battery cell welding ribbon transmission device, and welds the battery cells and welding ribbons on the battery cell welding ribbon transmission device; the jig transporting device transports the jig from the output end of the battery cell welding ribbon transmission device to the input end of the jig conveying device; the jig conveying device transports 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 strings obtained by welding by the welding device, and outputs battery strings of predetermined lengths.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] The utility model discloses a welding strip clamping and flattening mechanism and a string welding machine for battery cells, which synchronously drives multiple transmission rods through a power drive mechanism to drive multiple flattening axial flattening bottom molds to move, thereby flattening multiple welding strips placed on the flattening bottom molds; the corresponding welding strip flattening components and welding strip clamping components are driven to move in reverse directions through a first telescopic cylinder and a second telescopic cylinder, thereby realizing the clamping and straightening operation of the welding strip, and effectively solving the problem that the existing welding strip clamping mechanism does not have the function of flattening the welding strip; at the same time, the flattening degree of the welding strip is realized by controlling the air intake of the flattening cylinder, thereby accurately flattening the corresponding welding strip according to different needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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.

[0022] Figure 1 This is a structural schematic diagram of a welding strip clamping and flattening mechanism for a battery cell of the utility model;

[0023] Figure 2 yes Figure 1 The utility model is a schematic diagram of an exploded structure of a welding strip clamping and flattening mechanism for a battery cell, including a welding strip flattening assembly;

[0024] Figure 3 yes Figure 2 The structural schematic diagram of the welding ribbon flattening assembly shown;

[0025] Figure 4 yes Figure 3 The schematic diagram of the structure of the welding strip flattening assembly after removing the cylinder mounting seat;

[0026] Figure 5 The utility model is a schematic diagram of a use scenario of a welding strip clamping and flattening mechanism for a battery cell.

[0027] Indicated 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 flattening assembly; 121, mounting seat mechanism; 1211, lower mounting seat; 1212, upper mounting seat; 122, power drive mechanism; 1221, cylinder mounting seat; 1222, flattening cylinder; 1223, air distributor block; 123, transmission mechanism; 1231, guide block; 1232, transmission rod; 124, flattening bottom mold; 125, flattening shaft; 13, welding strip clamping assembly; 131, clamping base; 1311, limiting column; 132, movable seat; 133, clamping cylinder; 134, upper pressure block. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] See also Figure 1-Figure 4 As shown, the utility model is a solder strip clamping and flattening mechanism 10 for a battery cell, which mainly comprises a telescopic support assembly 11, a solder strip flattening assembly 12 and a solder strip clamping assembly 13; the telescopic support assembly 11 is fixedly arranged on one side of the solder strip cutting mechanism; the solder strip flattening assembly 12 and the solder strip clamping assembly 13 are movably arranged on the telescopic support assembly 11, respectively, and the solder strip straightening and flattening operations are realized through the cooperation of the two.

[0031] See also Figure 1 and Figure 2 As shown, in the present embodiment, the telescopic support assembly 11 is respectively movably provided with a first movable seat 111 and a second movable seat 112, and the solder strip flattening assembly 12 and the solder strip clamping assembly 13 are respectively fixedly provided 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 transmission-connected with the first movable seat 111 and the second movable seat 112, thereby respectively driving the solder strip flattening assembly 12 and the solder strip clamping assembly 13 to move on the telescopic support assembly 11, so as to realize the straightening operation of the solder strip.

[0032] See also Figure 1-Figure 4 As shown, in the present embodiment, the welding strip flattening assembly 12 comprises a mounting seat mechanism 121, a power drive mechanism 122, a transmission mechanism 123, a flattening bottom die 124 and a plurality of flattening shafts 125; the mounting seat mechanism 121 is fixedly arranged on the first movable seat 111, and moves following the movement of the first movable seat 111; the power drive mechanism 122 is arranged on the mounting seat mechanism 121; the transmission mechanism 123 is movably arranged on the mounting seat mechanism 121 and is transmission-connected with the power drive mechanism 122, and the power drive mechanism 122 drives the transmission mechanism 123 to move in the longitudinal direction; the flattening bottom die 124 is fixedly arranged on the mounting seat mechanism 121; a plurality of flattening shafts 125 are respectively arranged below the transmission mechanism 123 and are arranged opposite to the flattening bottom die 124, and the power drive mechanism 122 synchronously drives the plurality of flattening shafts 125 to move toward the flattening bottom die 124 through the transmission mechanism 123, thereby flattening a plurality of welding strips arranged on the flattening bottom die 124.

[0033] See also Figure 3 and Figure 4As shown, in this embodiment, the mounting seat mechanism 121 includes a lower mounting seat 1211 and an upper mounting seat 1212; the lower mounting seat 1211 is fixedly arranged on the first movable seat 111, and the flattening bottom die 124 is fixedly arranged on the lower mounting seat 1211; the upper mounting seat 1212 is fixedly arranged on the lower mounting seat 1211 through the first flipping mechanism and can rotate relative to the lower mounting seat 1211, so as to facilitate placing multiple welding strips on the flattening bottom die 124 for flattening operation, and the power driving mechanism 122 and the transmission mechanism 123 are respectively arranged on the upper mounting seat 1212. Specifically, the first flipping mechanism adopts the existing technology, through which the upper mounting seat 1212 can rotate relative to the lower mounting seat 1211 and can fix the upper mounting seat 1212 on the lower mounting seat 1211.

[0034] See also Figure 3 and Figure 4 As shown, in the present embodiment, the power drive mechanism 122 includes a cylinder mounting seat 1221, a plurality of flattening cylinders 1222 and an air distributor 1223; the cylinder mounting seat 1221 is a hollow cavity with openings at opposite ends, which is fixedly arranged on the upper mounting seat 1212; the plurality of flattening cylinders 1222 are respectively fixed on the sides of the cylinder mounting seat 1221 and are respectively connected to the transmission mechanism 123 for transmission, thereby synchronously driving the plurality of flattening shafts 125 to move toward the flattening bottom mold 124 through the transmission mechanism 123, thereby flattening the plurality of welding strips arranged on the flattening bottom mold 124; the air distributor 1223 is a hollow cavity, which is fixedly arranged on the upper mounting seat 1212 and is respectively connected to the plurality of flattening cylinders 1222 through air pipes, thereby providing power to the plurality of flattening cylinders 1222.

[0035] See also Figure 3 and Figure 4 As shown, in the present embodiment, the transmission mechanism 123 includes a guide block 1231 and a plurality of transmission rods 1232; the guide block 1231 is fixedly arranged on the upper mounting seat 1212 and is arranged below the cylinder mounting seat 1221, and is penetrated by a plurality of guide holes, which guide and limit the movement of the corresponding transmission rods 1232; the plurality of transmission rods 1232 movably penetrate the guide block 1231 through the corresponding guide holes and are transmission-connected with the flattening cylinder 1222, and a plurality of flattening shafts 125 are respectively fixedly arranged below the corresponding transmission rods 1232, and the flattening cylinder 1222 drives the flattening shaft 125 to move through the corresponding transmission rods 1232, so that the flattening shaft 125 cooperates with the flattening bottom mold 124 to flatten the welding strip arranged on the flattening bottom mold 124, and at the same time, the flattening degree of the welding strip is achieved by controlling the air intake of the flattening cylinder 1222, so that the corresponding welding strip can be accurately flattened according to different requirements.

[0036] See also Figure 1 and Figure 2 As shown, in this embodiment, the welding strip clamping assembly 13 includes a clamping base 131, a movable seat 132, a clamping cylinder 133 and an upper pressing block 134; the clamping base 131 is fixedly arranged on the second movable seat 112; the movable seat 132 is fixedly arranged on the clamping base 131 through a second flipping mechanism and can rotate relative to the clamping base 131; the clamping cylinder 133 and the upper pressing block 134 are arranged on the movable seat 132 in a transmission connection; the upper pressing block 134 is movably arranged on the movable seat 132 and is arranged opposite to the clamping base 13, and the clamping cylinder 133 drives the upper pressing block 134 to move relative to the clamping base 131 under the guidance of the movable seat 132, thereby realizing the clamping or loosening operation of the welding strip. Specifically, the second flipping mechanism adopts the existing technology, through which the movable seat 132 can rotate relative to the clamping base 131 and the movable seat 132 can be fixed on the clamping base 131. Specifically, a plurality of limiting posts 1311 are evenly arranged on the clamping base 131 , which perform limiting and guiding operations on the corresponding welding strips.

[0037] See also Figure 5 As shown, the utility model is a stringing machine for battery cells, comprising a welding ribbon laying device, and the welding ribbon laying device comprises any one of the above-mentioned welding ribbon clamping and flattening mechanisms 10;

[0038] It also includes a cell conveying device, a welding strip feeding device, a cell fixture handling device, a cell welding strip transmission device, a welding device, a fixture handling device, a fixture conveying device and a string discharging device;

[0039] Among them, 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 transporting device transports the battery cells at the output end of the battery cell conveying device and the jig at the output end of the jig conveying device to the input end of the battery cell welding tape transmission device; the welding tape laying device pulls the welding tape on the welding tape feeding device and lays it on the battery cell on the battery cell welding tape transmission device; the battery cell welding tape transmission device transports the battery cell, welding tape and the jig pressed on the welding tape together and passes through the welding device; the welding device is arranged between the input end and the output end of the battery cell welding tape transmission device, and it welds the battery cell and welding tape on the battery cell welding tape transmission device; the jig transporting device transports the jig from the output end of the battery cell welding tape transmission device to the input end of the jig conveying device; the jig conveying device transports 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 welding by the welding device, and outputs a battery string of predetermined length.

[0040] It should be noted that the specific working process of a solder strip clamping and flattening mechanism and a stringing machine for battery cells is: a power drive mechanism 122 synchronously drives multiple transmission rods 1232 to drive multiple flattening shafts 125 to move toward the flattening bottom mold 124, thereby accurately flattening the multiple solder strips placed on the flattening bottom mold 124; the first telescopic cylinder 113 and the second telescopic cylinder 114 can also drive the corresponding solder strip flattening assembly 12 and the solder strip clamping assembly 13 to move backwards, thereby realizing the clamping and straightening operation of the solder strip.

[0041] 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.

[0042] 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 solder strip clamping and flattening mechanism for a battery cell, characterized in that: include: Telescopic support assembly; A welding strip flattening assembly, which is movably arranged on the telescopic support assembly; A welding strip clamping assembly, which is movably arranged on the telescopic support assembly and is arranged opposite to the welding strip flattening assembly, and the welding strip clamping assembly and the welding strip flattening assembly cooperate to realize the clamping and straightening operation of the welding strip; Among them, the welding strip flattening assembly includes a mounting seat mechanism, which is movably arranged on the telescopic support assembly; a power drive mechanism arranged on the mounting seat mechanism; a transmission mechanism movably penetrating the mounting seat mechanism and connected to the power drive mechanism; a flattening bottom mold fixedly arranged on the mounting seat mechanism; and a plurality of flattening shafts respectively arranged under the transmission mechanism and opposite to the flattening bottom mold.

2. A solder strip clamping and flattening mechanism for a battery cell according to claim 1, characterized in that: The telescopic support assembly is movably provided with a first movable seat and a second movable seat, and the welding ribbon flattening assembly and the welding ribbon clamping assembly are fixedly provided on the first movable seat and the second movable seat, respectively.

3. A solder strip clamping and flattening mechanism for a battery cell according to claim 2, characterized in that: 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.

4. The solder strip clamping and flattening mechanism for a battery cell according to claim 2, characterized in that: The mounting seat mechanism comprises a lower mounting seat, which is fixedly arranged on the first movable seat; and an upper mounting seat arranged on the lower mounting seat, which can rotate relative to the lower mounting seat.

5. The solder strip clamping and flattening mechanism for a battery cell according to claim 4, characterized in that: The power drive mechanism includes a cylinder mounting seat, which is fixed on the upper mounting seat; a plurality of flattening cylinders respectively fixed on the sides of the cylinder mounting seat and respectively connected to the transmission mechanism; and an air distributor block which is a hollow cavity and is fixed on the upper mounting seat and respectively connected to the plurality of flattening cylinders.

6. A solder strip clamping and flattening mechanism for a battery cell according to claim 5, characterized in that: The transmission mechanism includes a guide block, which is fixedly arranged on the upper mounting seat and arranged below the cylinder mounting seat; a plurality of transmission rods movably passing through the guide block, which are respectively connected to the corresponding flattening cylinders.

7. A solder strip clamping and flattening mechanism for a battery cell according to claim 6, characterized in that: The guide block is provided with a plurality of guide holes; and a plurality of transmission rods movably penetrate the guide block through the corresponding guide holes.

8. The solder strip clamping and flattening mechanism for a battery cell according to claim 2, characterized in that: The welding strip clamping assembly includes a clamping base, which is fixedly arranged on the second movable seat; a movable seat arranged on the clamping base and capable of rotating relative to the clamping base; a clamping cylinder and an upper pressure block arranged on the movable seat in a transmission connection, and the upper pressure block is movably arranged on the movable seat and arranged opposite to the clamping base.

9. A solder strip clamping and flattening mechanism for a battery cell according to claim 8, characterized in that: A plurality of limiting columns are evenly arranged on the clamping base, which perform limiting and guiding operations on the corresponding welding strips.

10. A string welding machine for battery cells, characterized in that: It comprises a welding tape laying device, and the welding tape laying device comprises the welding tape clamping and flattening mechanism according to 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 welding tape feeding device places the welding tape roll to provide the welding tape required for battery string welding; the battery cell jig conveying device conveys the battery cells at the output end of the battery cell conveying device and the jig at the output end of the jig conveying device to the input end of the battery cell welding tape transmission device; the welding tape laying device pulls the welding tape on the welding tape feeding device and lays it on the battery cell on the battery cell welding tape transmission device; the battery cell welding tape transmission device conveys the battery cell, welding tape and the jig pressed on the welding tape together and passes through the welding device; the welding device is arranged between the input end and the output end of the battery cell welding tape transmission device, and welds the battery cell and welding tape on the battery cell welding tape transmission device; the jig conveying device conveys the jig from the output end of the battery cell welding tape transmission device 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 a predetermined length.

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