Battery piece series welding device with double hold-down clamps for integrally pressing welding wires

Abstract

The utility model discloses a battery piece series welding device for integrally pressing a welding wire through double pressing tools, which comprises a curing conveying line, a belt pulling hand, a tail clamping mechanism, a mechanical hand, a large pressing tool, a transverse moving module and a small pressing tool, the tail clamping mechanism is arranged at the input end of the curing conveying line, and the belt pulling hand pulls out the welding wire and then is matched with the tail clamping mechanism for tensioning. The manipulator carries the large hold-down clamp and the battery piece and places the large hold-down clamp and the battery piece on the rear part of the front section of the welding wire and the rear section of the welding wire, the curing conveying line conveys the battery string forwards by one station, and the transverse moving module is arranged on one side of the curing conveying line and carries the small hold-down clamp to place the small hold-down clamp on the front part of the front section of the welding wire; each of the large and small hold-down clamps comprises a hold-down clamp seat and a hold-down clamp unit, each hold-down clamp unit comprises hold-down clamp assemblies, and the number of the hold-down clamp assemblies of the small hold-down clamp unit is smaller than that of the hold-down clamp assemblies of the large hold-down clamp unit. The hold-down device is divided into the large hold-down device and the small hold-down device, welding wires are pressed through two-time carrying under the condition that the takt time is not changed, it is guaranteed that the welding wires are pressed completely, the risk that the welding wires collide with hands is avoided, and it can be guaranteed that the curing effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic component processing, in particular to a battery cell string welding device with double pressing tools for pressing welding wires. Background Art

[0002] When the existing battery cell stringing machine is in operation, after the puller pulls out the welding wire, a presser is placed to press the welding wire down so that the welding wire sinks into the battery cell welding glue. The presser can usually only press part of the welding wire, and if you want to press it completely, there is a risk of hitting the puller.

[0003] Moreover, the traditional press adopts a two-point fixing structure of a hollow disc. When fixing the welding wire of the glue-brushed battery cell, it can only partially remove the glue, and cannot ensure that the welding wire is completely pressed to remove the glue, resulting in the welding wire not being completely immersed in the welding glue, which in turn affects the heating of the battery cell in the curing furnace. The glue and welding wire on the battery cell will be heated unevenly, resulting in poor welding. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a battery cell string welding device with double presses for pressing welding wires, aiming to solve the technical problems in the prior art of the risk of collision during the placement of the presses and poor welding wire fixing effect resulting in poor welding.

[0005] The technical scheme of the utility model is: a battery cell string welding device with double presses for pressing welding wire, comprising a curing conveyor line, a pull-belt hand, a tail clamp mechanism, a manipulator, a large press, a transverse module, and a small press. The tail clamp mechanism is arranged at the input end of the curing conveyor line. The pull-belt hand pulls out the welding wire and then cooperates with the tail clamp mechanism to tighten the welding wire. The manipulator simultaneously carries the large press and the battery cell and places them on the rear part of the front section of the welding wire and the rear section of the welding wire respectively. The curing conveyor line conveys the battery string forward by one station. The transverse module is arranged on one side of the curing conveyor line, and carries the small press and places it on the front part of the front section of the welding wire.

[0006] The large press comprises a large press seat and several rows of large press units arranged at intervals on the large press seat, wherein the large press unit comprises a plurality of press assemblies arranged in a row; the small press comprises a small press seat and several rows of small press units arranged at intervals on the small press seat, wherein the small press unit comprises one or more press assemblies arranged in a row, and the number of press assemblies of the small press unit is less than the number of press assemblies of the large press unit.

[0007] Furthermore, in the present invention, the number of pressing units of the large and small pressing tools is the same, and the pressing units of the large and small pressing tools are evenly spaced and arranged.

[0008] Furthermore, the press assembly in the utility model includes a press block and two guide shafts respectively connected to the press blocks. The guide shafts are installed on the press seat through springs, and the other ends of the guide shafts pass through the press seat and are fixed by a first retaining ring.

[0009] Furthermore, the pressing block in the utility model is embedded in the bottom of the guide shaft and fixed by a positioning pin and a second retaining ring.

[0010] Furthermore, in the utility model, both ends of the press seats of the large and small presses are respectively provided with magnetic seats, and the magnetic seats are provided with knurled patterns.

[0011] Furthermore, a rubber pad is provided at the bottom of the press seat of the large and small presses in the utility model, and the rubber pad protrudes from the bottom surface of the press seat by 0.5 mm.

[0012] Furthermore, the robot arm described in the utility model includes a magnetic suction part and a vacuum suction part. The magnetic suction part is used to cooperate with the magnetic suction seat to suck and transport the large press, and the vacuum suction part is used to suck and transport the battery cell.

[0013] Furthermore, the transverse movement module in the utility model includes a magnetic attraction mechanism installed on the transverse movement mechanism, and the magnetic attraction mechanism is used to cooperate with the magnetic attraction seat to adsorb and transport the small press.

[0014] Compared with the prior art, the utility model has the following advantages: the press of the utility model is divided into a large press and a small press. The welding wire can be pressed by carrying it twice without changing the rhythm, which can not only ensure that the welding wire is fully pressed, but also avoid the risk of hitting or pulling the hand when the whole press is pressed down; the large and small press structures are specially designed to press the welding wire in sections, and the pressing blocks are long strips that contact the welding wire on the battery cell with glue to ensure uniform pressure. In order to avoid hidden cracks in the battery cell when pressed, the pressing blocks are elastically installed; the design of the magnetic suction seats at both ends of the press is not only convenient for the transportation of the press, but also can generate a certain suction force through cooperation with the magnets on the curing conveyor line to generate downward pressure on the welding wire, so that the welding wire is easily sunk into the welding glue, thereby ensuring a good curing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a side view of the string welding device of the utility model;

[0016] Figure 2 for Figure 1 A partial enlarged schematic diagram of the middle A part;

[0017] Figure 3 It is a top view of the string welding device of the utility model;

[0018] Figure 4 It is a schematic diagram of the specific structure of the large pressing tool described in the utility model;

[0019] Figure 5for Figure 4 AA section view;

[0020] Figure 6 for Figure 5 A partial enlarged schematic diagram of the middle B part;

[0021] Figure 7 for Figure 4 BB cross-sectional view;

[0022] Figure 8 It is a schematic diagram of the specific structure of the small pressing tool described in the utility model;

[0023] Fig. 9 This is a drawing showing the effect of pressing welding wire in the string welding device of the utility model;

[0024] Fig.10 This is a rendering of the effect of the string welding device of the utility model on avoiding the risk of machine collision.

[0025] Among them: 1. Curing conveyor line; 2. Belt puller; 3. Tail clamp mechanism; 4. Large press; 41. Large press seat; 42. Large press unit; 5. Small press; 51. Small press seat; 52. Small press unit; 6. Press assembly; 61. Press block; 62. Guide shaft; 63. Spring; 64. First retaining ring; 65. Positioning pin; 66. Second retaining ring; 7. Magnetic seat; 71. Knurling pattern; 8. Rubber pad; a. Battery cell; b. Welding wire. DETAILED DESCRIPTION

[0026] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings.

[0027] Example:

[0028] The accompanying drawings show a specific implementation of a battery cell string welding device with double pressing tools and full pressing welding wires according to the present invention. Figure 1 , which mainly includes a curing conveyor line 1, a strapping hand 2, a tail clamp mechanism 3, a manipulator, a large press 4, a transverse module, and a small press 5. The tail clamp mechanism 3 is set at the input end of the curing conveyor line 1. After the strapping hand 2 pulls out the welding wire b, it cooperates with the tail clamp mechanism 3 to tighten the welding wire b. The manipulator simultaneously carries the large press 4 and the battery cell a and places them on the rear part of the front section of the welding wire and the rear section of the welding wire respectively. The curing conveyor line 1 transports the battery string forward one station, and the transverse module is set on one side of the curing conveyor line 1, and the small press 5 is carried and placed in the front part of the front section of the welding wire.

[0029] The press of the utility model is divided into two parts, a large press 4 and a small press 5. The welding wire is pressed by two times without changing the beat, so as to ensure that the welding wire is pressed completely. Figure 4 , Figure 8The large press 4 includes a large press seat 41, 24 rows of large press units 42 arranged at equal intervals on the large press seat 41, and each large press unit 42 includes two press assemblies 6 arranged in a row. The small press 5 includes a small press seat 51, 24 rows of small press units 52 arranged at equal intervals on the small press seat 51, and each small press unit 52 includes one press assembly 6.

[0030] The structure and installation method of the press assembly 6 of the large and small presses are the same. Taking the large press 4 as an example, Figures 5 to 7 The press assembly 6 includes a press block 61 and two guide shafts 62 connected to the press block 61 respectively. The guide shafts 62 are installed on the press seat through springs 63. The other end of the guide shaft 62 passes through the press seat and is fixed by a first retaining ring 64. The press block 61 is embedded at the bottom of the two guide shafts 62. The press block 61 and each guide shaft 62 are fixed by a positioning pin 65 and a second retaining ring 66. Under the action of the spring 63, the press block 61 can move up and down a certain distance relative to the press seat to avoid hidden cracks in the battery cell due to lack of buffering when pressing down.

[0031] The two ends of the press seat of the large and small presses are respectively provided with a magnetic seat 7, and the magnetic seat 7 is provided with a knurled pattern 71. The magnetic seat 7 can be used for carrying the press, and the knurled pattern 71 can reduce the magnetic contact area to prevent the press from being slightly driven by the electromagnet when the press is placed when it is taken or placed, causing damage to the electromagnetic sheet or deviation of the fixed position of the welding wire.

[0032] The bottom of the press seat of the large and small presses is provided with a rubber pad 8, which protrudes 0.5mm from the bottom surface of the press seat. The purpose is to increase friction and prevent slipping on the curing conveyor line 1, causing damage to the battery cell and deviation of the welding wire position.

[0033] The utility model uses large and small presses to press the welding wire separately, which can avoid the risk of hitting the hand when the whole press is pressed down. Among them, the large press 4 is transported synchronously with the battery cell a by a manipulator. The structure of the manipulator is not shown in the figure. It mainly includes a magnetic suction part and a vacuum suction part. The magnetic suction part is used to cooperate with the magnetic suction seat 7 to absorb and transport the large press 4, and the vacuum suction part is used to absorb and transport the battery cell a. After the manipulator synchronously absorbs the large press 4 and the battery cell a, the large press 4 is placed at the rear part of the front section of the pulled welding wire to press most of the welding wire, and the battery cell a is pressed on the rear section of the welding wire in sequence.

[0034] The small press 5 is transported by a transverse movement module, the structure of which is not shown in the figure. It mainly includes a magnetic suction mechanism installed on the transverse movement mechanism. The magnetic suction mechanism is used to cooperate with the magnetic suction seat 7 to adsorb and transport the small press 5, and place the small press 5 on one side of the large press 4 to press the remaining small part of the welding wire.

[0035] When the present embodiment is working, the belt pulling hand 2 pulls out the welding wire b and cooperates with the tail clamp mechanism 3 to tighten the welding wire b. Then the robot moves the large pressing tool 4 and the battery cell a to lower the welding wire b. The large pressing tool 4 presses the rear part of the front section of the pulled welding wire b, so that the welding wire sinks into the welding glue of the battery cell below. The battery cell a is pressed on the rear section of the pulled welding wire b. Fig.10 Then the curing conveyor line 1 conveys the battery string forward to one station, and the lateral movement module on one side then absorbs and transports the small press 5 to be placed on one side of the large press 4, pressing the front part of the front section of the welding wire to press the welding wire completely, as shown. Fig. 9 Moreover, after the pressing tool is pressed down, the design of the magnetic seats 7 at both ends can also cooperate with the magnets (magnets not shown) on the curing conveying line 1 to generate a certain suction force, thereby exerting downward pressure on the welding wire, making the welding wire easy to sink into the welding glue, ensuring a good curing effect.

[0036] Of course, the above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any modifications made according to the spirit of the main technical solution of the utility model should be included in the protection scope of the utility model.

Claims

1. A battery cell string welding device with double pressing tools for pressing welding wire, characterized in that: It comprises a curing conveyor line (1), a strapping hand (2), a tail clamp mechanism (3), a manipulator, a large press (4), a transverse module, and a small press (5); the tail clamp mechanism (3) is arranged at the input end of the curing conveyor line (1); the strapping hand (2) pulls out the welding wire (b) and then cooperates with the tail clamp mechanism (3) to tighten the welding wire (b); the manipulator simultaneously carries the large press (4) and the battery cell (a) and places them on the rear part of the front section of the welding wire and the rear section of the welding wire respectively; the curing conveyor line (1) carries the battery string forward one station; the transverse module is arranged on one side of the curing conveyor line (1) and carries the small press (5) and places it on the front part of the front section of the welding wire; The large press (4) comprises a large press seat (41), and a plurality of rows of large press units (42) arranged at intervals on the large press seat (41), wherein the large press unit (42) comprises a plurality of press assemblies (6) arranged in a row; the small press (5) comprises a small press seat (51), and a plurality of rows of small press units (52) arranged at intervals on the small press seat (51), wherein the small press unit (52) comprises one or more press assemblies (6) arranged in a row, and the number of press assemblies (6) of the small press unit (52) is less than the number of press assemblies (6) of the large press unit (42).

2. The battery cell string welding device with double presses and welding wires according to claim 1 is characterized in that: The number of pressing units of the large and small pressing tools is the same, and the pressing units of the large and small pressing tools are evenly spaced.

3. The battery cell string welding device with double presses and welding wires according to claim 1 is characterized in that: The press assembly (6) comprises a press block (61) and two guide shafts (62) respectively connected to the press blocks (61); the guide shafts (62) are mounted on a press seat via a spring (63); the other end of the guide shaft (62) passes through the press seat and is fixed via a first retaining ring (64).

4. The battery cell string welding device with double presses and welding wires according to claim 3 is characterized in that: The pressing block (61) is embedded in the bottom of the guide shaft (62) and fixed by a positioning pin (65) and a second retaining ring (66).

5. The battery cell string welding device with double presses and welding wires according to claim 1, characterized in that: Magnetic seats (7) are respectively provided at both ends of the press seats of the large and small presses, and the magnetic seats (7) are provided with knurled patterns (71).

6. The battery cell string welding device with double presses and welding wires according to claim 1, characterized in that: A rubber pad (8) is provided at the bottom of the press seat of the large and small presses, and the rubber pad (8) protrudes from the bottom surface of the press seat by 0.5 mm.

7. The battery cell string welding device with double presses and welding wires according to claim 5, characterized in that: The manipulator comprises a magnetic suction part and a vacuum suction part, wherein the magnetic suction part is used to cooperate with a magnetic suction seat (7) to suction and carry a large press (4), and the vacuum suction part is used to suction and carry a battery cell (a).

8. The battery cell string welding device with double presses and welding wires according to claim 5, characterized in that: The transverse movement module comprises a magnetic attraction mechanism installed on the transverse movement mechanism, and the magnetic attraction mechanism is used to cooperate with the magnetic attraction seat (7) to absorb and carry the small press (5).

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