CN113232304A - Battery piece insulating strip laying and welding all-in-one machine and welding method - Google Patents

Abstract

The invention discloses a battery piece insulating strip laying and welding all-in-one machine and a welding method. The invention can avoid laying and welding the insulating strips under the condition that the EVA film and the bus bar are adhered together, and avoid the appearance of defective products.

Description

Battery piece insulating strip laying and welding all-in-one machine and welding method

Technical Field

The invention relates to the field of solar cell production, in particular to a cell insulating strip laying and welding all-in-one machine and a welding method.

Background

In the production and preparation process of the solar cell string, after the welding of the cell and the bus bar is completed, an insulating bar needs to be welded at the lower end of the bus bar. Before the welding of the insulating strips, the cell plates are lifted, the insulating strips are laid under the position of the bus bars, and then the insulating strips are welded to the bus bars. However, in the process of implementing the invention, the inventor finds that the following problems exist in the prior art: the EVA membrane has been laid to the below of battery piece, and at busbar and battery piece welded in-process, partial EVA membrane can adhere with the busbar together, at the in-process that lifts up the battery piece, the EVA membrane can be lifted along with lifting up of battery piece to can't accomplish laying of insulating strip and weld, and then lead to the appearance of defective products.

Disclosure of Invention

The invention aims to provide a battery piece insulating strip laying and welding all-in-one machine and a welding method.

The technical scheme is as follows:

the invention discloses an all-in-one machine for laying and welding battery piece insulating strips in one embodiment.

This battery piece insulated strip lays welding all-in-one includes the organism, and is fixed in leading-in device, material loading welding set, battery piece lifting device, insulated strip loading attachment that reforms on the organism, battery piece lifting device the insulated strip loading attachment material loading welding set is located respectively the top of leading-in device that reforms, leading-in being equipped with multiunit correlation formula laser sensor on the device that reforms, the battery piece is located the multiunit between correlation formula laser sensor's transmitting terminal and the receiving terminal.

Furthermore, the machine body is also provided with two insulating strip storage devices which are respectively positioned at two opposite side edges of the lead-in righting device; the insulation strip storage device comprises a storage bottom plate, a plurality of storage mechanisms which are arranged side by side in the width direction of the storage bottom plate are arranged on the storage bottom plate, each storage mechanism at least comprises a storage bin, and the EPE insulation strips are stored in the storage bins.

Further, the storage mechanism further comprises a length limiting assembly, a width limiting assembly, a length adjusting assembly and a width adjusting assembly, the length limiting assembly and the width limiting assembly enclose the storage bin, the length adjusting assembly is connected with the length limiting assembly, and the width adjusting assembly is connected with the width limiting assembly.

Further, still be equipped with material loading frock device in advance on the organism, material loading frock device in advance is located one side of insulating strip material loading device, material loading frock device in advance includes three material loading frock platform in advance, each material loading is equipped with a plurality of vacuum adsorption holes on the frock platform in advance respectively.

Further, the feeding welding device comprises an end welding mechanism, a middle welding mechanism and a tail welding mechanism; tip welding mechanism afterbody welding mechanism all includes first splice tray, and is fixed in first material loading platform, first welding subassembly, first X axle welding removal subassembly, first Y axle welding removal subassembly and first Z axle welding removal subassembly on the first splice tray, first welding subassembly is located a side of first material loading platform, be equipped with a plurality of first hot pressing heads on the first welding subassembly, first X axle welding removal subassembly, first Y axle welding removal subassembly and first Z axle welding removal subassembly respectively with first welding subassembly links to each other.

Further, middle part welding mechanism includes second welded baseplate, is fixed in second material loading platform on the second welded baseplate, and is fixed in second welded subassembly, second X axle welding removal subassembly, second Z axle welding removal subassembly that battery piece lifting device includes, second Z axle welding removal subassembly with second X axle welding removal subassembly links to each other, second welded subassembly with second X axle welding removal subassembly links to each other, be equipped with a plurality of second hot pressing heads on the second welded subassembly.

Furthermore, the insulating strip feeding device comprises a first feeding mechanism and a second feeding mechanism, the first feeding mechanism and the second feeding mechanism respectively comprise a first feeding transfer component, a second feeding transfer component, a feeding component, an insulating strip detection component and a contact pressure rod component, the second feeding transfer component is connected with the first feeding transfer component, and the feeding component, the insulating strip detection component and the contact pressure rod component are all fixed on the second feeding transfer component.

Further, the battery piece lifting device comprises a lifting main body, a plurality of lifting driving assemblies, a plurality of first vacuum nozzles and a plurality of photographing positioning assemblies, the lifting driving assemblies are respectively connected with the lifting main body, and the first vacuum nozzles and the photographing positioning assemblies are respectively fixed on the lifting main body.

Furthermore, a welding transfer device is further arranged on the machine body and comprises a plurality of welding transfer mechanisms, and the plurality of welding transfer mechanisms are respectively connected with the feeding welding device.

The invention also discloses a method for laying and welding the battery piece insulating strips in another embodiment, which comprises the following steps:

providing a battery piece to be welded and an EPE insulating strip to be welded;

guiding the cell to a righting device for righting the cell, and simultaneously transferring the EPE insulating strip to a material welding device by an insulating strip feeding device;

the cell lifting device lifts the restored cell upwards by 6-10 mm and then pauses, and the correlation laser sensor detects whether a bus bar on the cell is adhered to the EVA film;

if the battery piece is not adhered, the battery piece is continuously lifted upwards to a preset position by the battery piece lifting device;

the charging welding device drives the EPE insulating strip to enter a welding position, and the battery piece lifting device drives the battery piece to move downwards and enables the bus bar on the battery piece to be vertically overlapped with the EPE insulating strip;

the bus bar is welded with the EPE insulating strip corresponding to the bus bar by the feeding welding device, after the welding of the EPE insulating strip is completed, the feeding welding device resets, the battery piece lifting device drives the battery piece to move downwards, and the battery piece is placed on the guide rail righting device and is conveyed out.

The following illustrates the advantages or principles of the invention:

1. the battery piece insulating strip laying and welding all-in-one machine is provided with a plurality of groups of correlation laser sensors on the guiding and correcting device. The battery piece is generally placed on a glass carrying platform, when the EPE insulating strip is welded, the battery piece is firstly placed on the guiding and correcting device, then the battery piece is upwards lifted for a certain distance by the battery piece lifting device, and whether bus bars on the battery piece are adhered to the EVA film or not is detected by a plurality of groups of correlation laser sensors. If the EVA film is not lifted, the cell piece is continuously lifted upwards by the cell piece lifting device, and if the EVA film is lifted, the cell piece lifting device puts the cell piece back to the leading-in and returning device and conveys the cell piece out for processing. According to the invention, the adhesion condition of the bus bar and the EVA is detected by arranging the plurality of groups of correlation laser sensors, so that the laying and welding of the EPE insulating strip are avoided under the condition that the EAV film is adhered to the bus bar, and the appearance of defective products is avoided.

2. The EPE insulating strips are placed in the storage bin before welding, the length limiting assembly is driven to move through the length adjusting assembly, and the storage bin can be suitable for storing the EPE insulating strips with different lengths. The width adjusting component drives the width limiting component to move, so that the storage bin is suitable for storing EPE insulating strips with different widths.

3. Still be equipped with material loading frock device in advance on the organism, EPE insulating strip can move at first and carry the storage to material loading frock device in advance before moving to material loading welding set, and material loading frock device in advance can avoid appearing because of the condition that the material was folded to the multi-disc EPE insulating strip that causes such as static, avoids because of the welding that EPE insulating strip folded the material and appears badly.

Drawings

FIG. 1 is a schematic structural diagram of a cell insulating strip laying and welding all-in-one machine;

FIG. 2 is another schematic structural diagram of the battery piece insulating strip laying and welding all-in-one machine;

FIG. 3 is a schematic view of the lead-in reforming apparatus;

FIG. 4 is a schematic structural diagram of the interior of the machine body of the battery piece insulating strip laying and welding all-in-one machine;

FIG. 5 is a schematic structural view of an end or tail welding mechanism;

FIG. 6 is a schematic structural diagram of the first feeding mechanism or the second feeding mechanism;

FIG. 7 is a schematic structural diagram of a cell lifting device;

FIG. 8 is a schematic view of the construction of the middle welding mechanism;

FIG. 9 is a schematic view of the construction of the middle welding mechanism;

description of reference numerals:

1. a body; 2. leading in a correcting device; 3. a feeding welding device; 4. a battery piece lifting device; 5. an insulating strip feeding device; 6. a correlation laser sensor; 7. an insulating strip storage device; 70. a storage backplane; 71. a storage bin; 72. a length limiting plate; 73. a length adjustment seat; 74. a width limiting plate; 75. a width limiting rod; 76. a width adjustment base; 77. adjusting the screw rod; 8. a feeding pre-tooling device; 81. a feeding pre-tooling platform; 82. a first vacuum adsorption hole; 30. an end welding mechanism; 31. a middle welding mechanism; 32. a tail welding mechanism; 301. a first weld floor; 302. a first feeding table; 303. a first welded assembly; 304. a first X-axis welding movement assembly; 305. a first Y-axis welding movement assembly; 306. a first Z-axis welding movement assembly; 307. a first hot-pressing head; 9. a welding transfer mechanism; 51. a first feeding mechanism; 52. a second feeding mechanism; 511. a first loading transfer component; 512. a second loading transfer component; 513. a feeding assembly; 514. an insulating strip detection assembly; 515. a contact strut assembly; 5131. a feeding fixing plate; 5132. a second vacuum nozzle; 5151. a compression bar fixing seat; 5152. a pressure lever; 5153. a spring; 5154. a contact sensor; 5155. a contact plate; 21. leading in a correcting frame; 22. a first import righting component; 23. a second import righting component; 41. a first vacuum nozzle; 42. a photographing positioning component; 43. lifting the main body; 44. a lift drive assembly; 310. a second welding bottom plate, 311 and a second feeding table; 313. a second welded assembly; 314. a second X-axis welding movement assembly; 315. a second Z-axis welding moving component; 316. and a second hot-pressing head.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "middle", "inner", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

As shown in fig. 1 and 2, the invention discloses an all-in-one machine for laying and welding battery piece insulating strips in one embodiment.

The battery piece insulating strip laying and welding all-in-one machine comprises a machine body 1, and a guiding-in and correcting device 2, a feeding and welding device 3, a battery piece lifting device 4 and an insulating strip feeding device 5 which are fixed on the machine body 1. The cell lifting device 4, the insulating strip feeding device 5 and the feeding welding device 3 are respectively positioned above the leading-in and correcting device 2. As shown in fig. 3, a plurality of sets of correlation laser sensors 6 are disposed on the lead-in and return device 2, and the battery plate is located between the transmitting end and the receiving end of the plurality of sets of correlation laser sensors 6. The lead-in correcting device 2 is provided with a lead-in correcting position, and the plurality of groups of correlation laser sensors 6 are positioned above the lead-in correcting position.

The battery pieces are generally placed on a glass carrying platform, and before the battery piece insulation laying all-in-one machine is used for laying and welding the EPE insulation strips, the glass carrying platform on which the battery pieces are placed is firstly conveyed to the leading-in righting device 2, and the battery pieces are righted by the leading-in righting device 2. The cell is then lifted upwards by a certain distance by cell lifting means 4, preferably 6mm to 8 mm. Then detect by a plurality of correlation formula laser sensor 6, detect the battery piece and whether have the EVA membrane uplift together at the in-process of uplift to judge whether bus bar on the battery piece has with the EVA membrane adhesion.

If the receiving end of the shot laser sensor does not receive the signal of the emitting end in the detection process, the bus bar is adhered to the EVA film. The cell lifting device 4 puts the cell back on the lead-in righting device 2 and conveys the cell out for processing. If the bus bar is not detected to be adhered to the EVA film, the cell lifting device 4 continues to lift the cell upwards to a preset position.

Then the charging welding device 3 drives the EPE insulating strips to move to a welding position, and then the cell lifting device 4 drives the cells to move downwards, so that the bus bars on the cells are overlapped with the corresponding EPE insulating strips up and down. And then the feeding welding device 3 starts welding to weld the cell slice and the EPE insulating strip together. After the welding is finished, the battery piece lifting device 4 drives the battery piece to move upwards for a certain distance, then the feeding welding device 3 resets, then the battery piece lifting device 4 drives the battery piece to move downwards and places the battery piece on the glass carrying platform, and finally the welded battery piece is conveyed away.

Through set up a plurality of correlation formula laser sensor 6 on leading-in device 2 that reforms in this embodiment to realize the detection of whether busbar and EVA membrane adhesion, thereby avoid carrying out the welding of EPE insulating strip under the circumstances of busbar and EVA membrane adhesion, avoid the appearance of defective products.

Before welding, the EPE insulating strip to be welded needs to be placed on the machine body 1. In order to facilitate the storage of the EPE insulating strips, in this embodiment, two insulating strip storage devices 7 are disposed on the machine body 1, and the two insulating strip storage devices 7 are respectively located on two opposite sides of the lead-in righting device 2. As shown in fig. 4, the insulating strip storage device 7 includes a storage base plate 70, a plurality of storage mechanisms arranged side by side in the width direction of the storage base plate 70 are disposed on the storage base plate 70, the storage mechanisms at least include a storage bin 71, and the EPE insulating strips are stored in the storage bin 71. Preferably, in this embodiment, two storage bins 71 are disposed on the insulator storage device 7 on the left side for storing tail EPE insulating strips, and four storage bins 71 are disposed on the insulator storage device 7 on the right side, wherein two storage bins 71 are used for storing middle EPE insulating strips, and the other two storage bins 71 are used for storing end EPE insulating strips. 400-500 pieces of EPE insulating strips can be placed in each storage bin 71. The EPE insulating strips stored in the storage silo 71 can satisfy the usage of one strip. When the materials are prepared, the storage bin 71 is pulled out manually.

Further, the storage mechanism further comprises a length limiting assembly, a width limiting assembly, a length adjusting assembly and a width adjusting assembly, wherein the length limiting assembly and the width limiting assembly enclose the storage bin 71, the length adjusting assembly is connected with the length limiting assembly, and the width adjusting assembly is connected with the width limiting assembly.

Wherein, the length limiting assembly comprises two length limiting plates 72, and the two length limiting plates 72 are oppositely arranged in the length direction of the storage bin 71. The length adjusting assembly comprises two length adjusting seats 73, the two length limiting plates 72 are respectively fixed on the two length adjusting seats 73, and the two length adjusting seats 73 are movably connected with the storage bottom plate 70. Preferably, a first connecting hole is formed in the length limiting seat, a plurality of second connecting holes are formed in the storage bottom plate 70, and the length limiting seat can be fixed on the storage bottom plate 70 by placing fasteners into the first connecting hole and the second connecting holes. When the distance of the length limiting plate 72 needs to be adjusted, the fastener is taken down, the length adjusting seat 73 is moved, the first connecting hole of the length adjusting seat 73 corresponds to one second connecting hole, and then the fastener is placed in the first connecting hole and the second connecting hole for fixing.

The width restricting assembly includes two width restricting plates 74, and the two width restricting plates 74 are oppositely disposed in the width direction of the storage bin 71. Each width limiting plate 74 is provided with a plurality of width limiting rods 75. The width adjusting assembly comprises a width adjusting base 76 and two adjusting screws 77, wherein one width limiting plate 74 is fixed on the width adjusting base 76, the two adjusting screws 77 are fixed on the storage bottom plate 70, and the two adjusting screws 77 are movably connected with the width adjusting base 76 respectively. The position of the width adjustment base 76 can be adjusted by adjusting the screw 77, thereby adjusting the width of the storage bin 71.

In order to prevent the EPE insulating strip from being laminated due to static electricity and other reasons, the present embodiment is characterized in that a feeding pre-assembly device 8 is further arranged on the machine body 1, the feeding pre-assembly device 8 is located on one side of the insulating strip feeding device 5, and the feeding pre-assembly device 8 comprises three feeding pre-assembly platforms 81. Wherein, two material loading is in advance frock platform 81 and is located one of them insulating strip storage device 7's a side, and another material loading is in advance frock platform 81 and is located another insulating strip storage device 7's a side. All be equipped with a plurality of first vacuum adsorption holes 82 on each material loading frock platform 81 in advance, adsorb the EPE insulating strip through first vacuum adsorption hole 82.

When the battery piece is welded with the EPE insulating strips, the EPE insulating strips are generally required to be welded to the bus bars located at the end, the middle and the tail of the battery piece, and since the bus bars welded at each position may be the same in size or different in size, three feeding pre-tooling platforms 81 are provided in the embodiment. Firstly, the EPE insulating strips are transferred to the three feeding pre-tooling platforms 81 from the storage bin 71 through the insulating strip feeding device 5, and then the EPE insulating strips on the feeding pre-tooling platforms 81 are transferred to the feeding welding device 3 through the insulating strip feeding device 5. Because the first vacuum adsorption hole 82 is formed in the feeding pre-tooling platform 81, the insulating strip feeding device 5 can avoid the condition that a plurality of EPE insulating strips are stacked due to static electricity and the like when the EPE insulating strips are moved from the feeding pre-tooling platform 81, and avoid poor welding due to the stacking of the EPE insulating strips.

In order to weld the EPE insulating bar and the bus bar, the feeding welding device 3 of the present embodiment includes an end welding mechanism 30, a middle welding mechanism 31, and a tail welding mechanism 32. The end welding mechanism 30 is used for welding the bus bars at the ends of the battery pieces, the middle welding mechanism 31 is used for welding the bus bars at the middle of the battery pieces, and the tail welding mechanism 32 is used for welding the bus bars at the tail of the battery pieces.

As shown in fig. 5, the end welding mechanism 30 and the tail welding mechanism 32 have the same structure, and each of the end welding mechanism 30 and the tail welding mechanism 32 includes a first welding base plate 301, and a first feeding table 302, a first welding assembly 303, a first X-axis welding moving assembly 304, a first Y-axis welding moving assembly 305, and a first Z-axis welding moving assembly 306 fixed on the welding base plate. Be equipped with a plurality of second vacuum adsorption holes on first material loading platform 302, the EPE insulating strip is placed on first material loading platform 302 to by a plurality of second vacuum adsorption holes absorption, prevent that the EPE insulating strip from removing on first material loading platform 302. The first welding assembly 303 is located at one side of the first feeding table 302, a plurality of first hot press heads 307 are arranged on the first welding assembly 303, and the first X-axis welding moving assembly 304, the first Y-axis welding moving assembly 305 and the first Z-axis welding moving assembly 306 are respectively connected with the first welding assembly 303. Preferably, the first thermal head 307 is a self-heating ceramic bonding head.

When the end welding mechanism 30 and the tail welding mechanism 32 are performing welding operation, the end welding mechanism 30 is firstly moved to be below the end bus bars of the battery pieces, and the tail welding mechanism 32 is moved to be below the tail bus bars of the battery pieces. Then, the cell lifting device 4 drives the cell to move downwards, and the end bus bar is pressed down on the EPE insulating bar of the first feeding table 302 of the end welding mechanism 30, and the tail bus bar is pressed down on the EPE insulating bar of the first feeding table 302 of the tail welding mechanism 32. Then, the first welding assembly 303 is driven by the first X-axis welding moving assembly 304, the first Y-axis welding moving assembly 305 and the first Z-axis welding moving assembly 306 to move, so that the plurality of first hot pressing heads 307 are compacted above the bus bar, and then welding is performed through the plurality of first hot pressing heads 307, thereby welding the bus bar and the EPE insulating bar together.

Due to the fact that the sizes of the battery pieces are different, in order to enable the end welding mechanism 30 and the tail welding mechanism 32 to be suitable for welding the battery pieces with different sizes, the first hot pressing heads 307 are movably connected to the first welding assembly 303, and the positions of the first hot pressing heads 307 on the first welding assembly 303 can be adjusted manually.

To achieve the movement of the first welding module 303 in the X, Y and Z axes, the first X-axis welding moving module 304 includes an X-axis welding moving cylinder, the first Y-axis welding moving module 305 includes a Y-axis welding moving cylinder, and the first Z-axis welding moving module 306 includes a Z-axis welding moving cylinder. The first welding assembly 303 moves on the X axis, the Y axis and the Z axis through the X axis welding moving cylinder, the Y axis welding moving cylinder and the Z axis welding moving cylinder.

Since the middle welding mechanism generally needs to weld two bus bars with the EPE insulating strips between two battery strings when welding the bus bars in the middle of the battery piece, as shown in fig. 9, the middle welding mechanism 31 includes a second welding base plate 310, a second feeding table 311 fixed on the second welding base plate 310, and a second welding assembly 313, a second X-axis welding moving assembly 314, and a second Z-axis welding moving assembly 315 fixed on the battery piece lifting device 4. The second Z-axis welding moving assembly 315 is connected to the second X-axis welding moving assembly 314, the second welding assembly 313 is connected to the second X-axis welding moving assembly 314, and a plurality of second thermocompression heads 316 are disposed on the second welding assembly 313. Preferably, the second thermal press head 316 is a self-heating ceramic thermal press head.

When the middle welding mechanism 31 needs to weld the EPE insulating strip to the bus bar in the middle of the battery piece, the second welding bottom plate 310 drives the second feeding table 311 to move to the lower side of the middle bus bar. Then the cell lifting device 4 drives the cell to move downwards, so that the bus bar in the middle of the cell is compacted on the EPE insulating bar. Then, the second welding assembly 313 is driven by the second X-axis welding moving assembly 314 to move along the Z-axis, so as to move the second thermal compression heads 316 to positions directly above the middle bus bar. And finally, the second Z-axis welding moving assembly 315 drives the second hot pressing heads 316 to move downwards, and the second hot pressing heads are compacted above the middle fluid strip, so that welding can be directly realized through the second hot pressing heads 316.

In order to enable the middle welding mechanism 31 to be suitable for welding of battery pieces with different sizes, the plurality of second thermal compression heads 316 of the embodiment can also be manually moved on the second welding assembly 313, so as to adjust the positions of the plurality of second thermal compression heads 316.

After the battery piece is lifted by the battery piece lifting device 4, the end welding mechanism 30, the middle welding mechanism 31 and the tail welding mechanism 32 need to be moved to the welding position, and in order to move the end welding mechanism 30, the middle welding mechanism 31 and the tail welding mechanism 32, a welding transfer device is further arranged on the machine body 1. The welding transfer device comprises a plurality of welding transfer mechanisms 9, and the plurality of welding transfer mechanisms 9 are respectively connected with the feeding welding device 3.

Preferably, the plurality of welding transfer mechanisms 9 are an end welding transfer mechanism, a middle welding transfer mechanism, and a tail welding transfer mechanism, respectively. The end welding transfer mechanism is connected with the end welding mechanism 30, the middle welding transfer mechanism is connected with the middle welding mechanism 31, and the tail welding transfer mechanism is connected with the tail welding mechanism 32. Further, the end welding transfer mechanism, the middle welding transfer mechanism and the tail welding transfer mechanism can respectively drive the ball screw to drive the end welding mechanism 30, the middle welding mechanism 31 and the tail welding mechanism 32 to move through the driving motor. The end welding transfer mechanism, the middle welding transfer mechanism and the tail welding transfer mechanism can also respectively drive the belt to rotate through the driving motor, so as to drive the end welding mechanism 30, the middle welding mechanism 31 and the tail welding mechanism 32 to move.

The insulation strip feeding device 5 of this embodiment includes a first feeding mechanism 51 and a second feeding mechanism 52, and the first feeding mechanism 51 is configured to move the EPE insulation strip from the storage bin 71 to the feeding pre-assembly device 8, and move the EPE insulation strip on the feeding pre-assembly device 8 to the middle welding mechanism 31 and the end welding mechanism 30. The second feeding mechanism 52 is used for transferring the EPE insulating strips from the storage bin 71 to the feeding pre-assembly device 8, and transferring the EPE insulating strips on the feeding pre-assembly device 8 to the tail welding mechanism 52.

As shown in fig. 6, the first feeding mechanism 51 and the second feeding mechanism 52 have the same structure, and each of the first feeding mechanism 51 and the second feeding mechanism 52 includes a first feeding transfer component 511, a second feeding transfer component 512, a feeding component 513, an insulation strip detection component 514, and a contact pressure rod component 515. The second loading transfer component 512 is connected to the first loading transfer component 511, and the loading component 513, the insulating strip detection component 514, and the contact pressure lever component 515 are all fixed to the second loading transfer component 512. The first loading transfer component 511 can drive the second loading transfer component 512 to move in the X-axis direction, and the second loading transfer component 512 drives the loading component 513, the insulating strip detection component 514 and the contact pressure rod component 515 to move in the Z-axis direction.

Further, the first loading transfer component 511 and the second loading transfer component 512 are driven by a motor respectively. The feeding assembly 513 includes a feeding fixing plate 5131 and a plurality of second vacuum suction nozzles 5132, the plurality of second vacuum suction nozzles 5132 are respectively fixed on the feeding fixing plate 5131, and the insulating strip detecting assembly 514 and the contact pressing rod assembly 515 are respectively fixed on the feeding fixing plate 5131. Preferably, the insulation strip detection assembly 514 is a sensor, and the insulation strip detection assembly 514 is used for detecting whether an EPE insulation strip is present in the storage bin 71.

As shown in fig. 7, the contact pressure lever assembly 515 includes a pressure lever fixing seat 5151, a pressure lever 5152, a spring 5153 and a contact sensor 5154, wherein the pressure lever fixing seat 5151 is fixed on the feeding fixing plate 5131. The compression bar 5152 is movably arranged on the compression bar fixing seat 5151, a spring 5153 is sleeved on the compression bar 5152, and the spring 5153 is positioned between the compression bar fixing seat and the bottom of the compression bar 5152. The contact plate 5155 is fixed on the top of the compression bar 5152, the contact sensor 5154 is fixed on the compression bar fixing seat 5151, and the contact plate 5155 is in contact with the contact sensor 5154.

When the first feeding mechanism 51 and the second feeding mechanism 52 transfer the EPE insulating strips, the insulating strip detecting assembly 514 detects whether there is an EPE insulating strip. When the EPE insulating strip is detected, the second loading transfer assembly 512 drives the loading fixing plate 5131 to move downward, and when the bottom of the pressing rod 5152 contacts the EPE insulating strip, the loading fixing plate 5131 continues to move downward. After the compression bar 5152 is contacted and extruded with the EPE insulating strip, the compression bar 5152 moves upwards on the compression bar fixing seat 5151. When the contact plate 5155 is out of contact with the contact sensor 5154, the plurality of second vacuum nozzles 5132 starts to suck the EPE insulation bar. Then, the second loading transfer assembly 512 drives the EPE insulating strip to move upward.

The lead-in reforming device 2 of the present embodiment includes a lead-in reforming frame 21, a plurality of first lead-in reforming assemblies 22, and a plurality of second lead-in reforming assemblies 23, and the plurality of first lead-in reforming assemblies 22 and the plurality of second lead-in reforming assemblies 23 are respectively located on the lead-in reforming frame 21. The first lead-in righting assembly 22 drives the belt to rotate through the motor, so that the battery piece can move in the left and right directions. The plurality of second guiding-in righting assemblies 23 drive the belt to rotate through the motor, so that the battery pieces move in the front-back direction.

As shown in fig. 8, the battery lifting device 4 includes a lifting body 43, a plurality of lifting driving assemblies 44, a plurality of first vacuum nozzles 41, and a plurality of camera positioning assemblies 42. The plurality of lift driving assemblies 44 are respectively connected to the lift main body 43, and the plurality of lift driving assemblies 44 drive the lift main body 43 to move up or down. Preferably, the plurality of lift driving assemblies 44 respectively drive the lift bodies 43 to move by servo motors.

The first vacuum nozzles 41 and the photo positioning components 42 are fixed on the lifting body 43. The cell lifting device 4 sucks a plurality of cells through the plurality of first vacuum suction nozzles 41, thereby driving the cells to move upwards or downwards. The plurality of photographing positioning assemblies 42 comprise a plurality of CCD cameras, the plurality of CCD cameras are used for detecting whether the bus bars at the end parts, the middle parts and the tail parts coincide with the EPE insulating strips, the side lines of the common bus bars and the side lines of the EPE insulating strips can be staggered by 1mm +/-0.5 mm, and if the side lines exceed the side lines, the positions of the EPE insulating strips need to be adjusted.

The invention also discloses a method for laying and welding the battery piece insulating strips in another embodiment, which comprises the following steps:

s10: and providing a cell to be welded and an EPE insulating strip to be welded.

The EPE insulating strips comprise end EPE insulating strips, middle EPE insulating strips and tail EPE insulating strips.

S20: the cell is guided into the righting device 2 to be righted, and the insulation strip feeding device 5 transfers the EPE insulation strip to the feeding welding device 3.

Before the insulation strip feeding device 5 transfers the EPE insulation strip to the feeding welding device 3, the insulation strip feeding device 5 may first transfer the EPE insulation strip to the feeding pre-processing device 8, and then transfer the EPE insulation strip to the feeding welding device 3 through the insulation strip feeding device 5.

S30: and the cell lifting device 4 lifts the restored cell upwards by 6-10 mm and then pauses, and the correlation laser sensor 6 detects whether the bus bar on the cell is adhered to the EVA film.

S40: if the battery piece is not adhered, the battery piece is continuously lifted upwards to a preset position by the battery piece lifting device 4; if the bus bar on the cell piece is adhered to the EVA film, the cell piece is directly conveyed out by the reforming device for processing.

S50: the feeding welding device 3 drives the EPE insulating strip to enter a welding position, and the battery piece lifting device 4 drives the battery piece to move downwards and enables the bus bar on the battery piece to coincide with the EPE insulating strip up and down. To facilitate alignment of the EPE insulator strips, the bus bars are typically offset from the EPE insulator strips by 1mm to 2 mm. Before welding, the bus bars at the end, middle and tail parts and the EPE insulating bars are generally detected by a CCD camera to judge whether the position of the EPE insulating bars needs to be adjusted.

S60: the bus bar is welded with the corresponding EPE insulating strip by the feeding welding device 3, after the welding of the EPE insulating strip is completed, the feeding welding device 3 resets, the battery piece lifting device 4 drives the battery piece to move downwards, and the battery piece is placed on the guide rail righting device and is conveyed out.

S70: when welding, the welding time is generally 2-3S, 2-3 welding points are generally welded on each single section of bus bar, and the total number of welding points on one bus bar is generally not more than 12 points.

The embodiments of the present invention are not limited thereto, and according to the above-mentioned contents of the present invention, the present invention can be modified, substituted or combined in other various forms without departing from the basic technical idea of the present invention.

Claims (10)

1. The utility model provides a battery piece insulating strip lays welding all-in-one, its characterized in that, includes the organism, and is fixed in leading-in device, material loading welding set, battery piece lifting device, insulating strip loading attachment of reforming on the organism, battery piece lifting device insulating strip loading attachment be located respectively the top of leading-in device of reforming, leading-in being equipped with multiunit correlation formula laser sensor on the device of reforming, the battery piece is located the multiunit between correlation formula laser sensor's transmitting terminal and the receiving terminal.

2. The integrated machine for laying and welding the battery piece insulating strips according to claim 1, wherein two insulating strip storage devices are further arranged on the machine body and are respectively positioned on two opposite side edges of the lead-in righting device; the insulation strip storage device comprises a storage bottom plate, a plurality of storage mechanisms which are arranged side by side in the width direction of the storage bottom plate are arranged on the storage bottom plate, each storage mechanism at least comprises a storage bin, and the EPE insulation strips are stored in the storage bins.

3. The machine for laying and welding the battery piece insulating strips as claimed in claim 2, wherein the storage mechanism further comprises a length limiting component, a width limiting component, a length adjusting component and a width adjusting component, the length limiting component and the width limiting component enclose the storage bin, the length adjusting component is connected with the length limiting component, and the width adjusting component is connected with the width limiting component.

4. The all-in-one machine for laying and welding the battery piece insulating strips according to any one of claims 1 to 3, wherein a feeding pre-assembly device is further arranged on the machine body and located on one side of the insulating strip feeding device, the feeding pre-assembly device comprises three feeding pre-assembly platforms, and each feeding pre-assembly platform is provided with a plurality of first vacuum adsorption holes.

5. The all-in-one machine for laying and welding the battery piece insulating strips according to any one of claims 1 to 3, wherein the feeding and welding device comprises an end welding mechanism, a middle welding mechanism and a tail welding mechanism; tip welding mechanism afterbody welding mechanism all includes first splice tray, and is fixed in first material loading platform, first welding subassembly, first X axle welding removal subassembly, first Y axle welding removal subassembly and first Z axle welding removal subassembly on the first splice tray, first welding subassembly is located a side of first material loading platform, be equipped with a plurality of first hot pressing heads on the first welding subassembly, first X axle welding removal subassembly, first Y axle welding removal subassembly and first Z axle welding removal subassembly respectively with first welding subassembly links to each other.

6. The integrated machine for laying and welding the battery piece insulating strips according to claim 5, wherein the middle welding mechanism comprises a second welding base plate, a second feeding table fixed on the second welding base plate, and a second welding assembly, a second X-axis welding moving assembly and a second Z-axis welding moving assembly fixed on the battery piece lifting device, the second Z-axis welding moving assembly is connected with the second X-axis welding moving assembly, the second welding assembly is connected with the second X-axis welding moving assembly, and a plurality of second hot pressing heads are arranged on the second welding assembly.

7. The integrated machine for laying and welding the battery piece insulating strips according to claim 1, wherein the insulating strip feeding device comprises a first feeding mechanism and a second feeding mechanism, the first feeding mechanism and the second feeding mechanism respectively comprise a first feeding transfer component, a second feeding transfer component, a feeding component, an insulating strip detection component and a contact pressure rod component, the second feeding transfer component is connected with the first feeding transfer component, and the feeding component, the insulating strip detection component and the contact pressure rod component are all fixed on the second feeding transfer component.

8. The machine for laying and welding the battery piece insulating strips as claimed in claim 1, wherein the battery piece lifting device comprises a lifting main body, a plurality of lifting driving assemblies, a plurality of first vacuum nozzles and a plurality of photographing positioning assemblies, the plurality of lifting driving assemblies are respectively connected with the lifting main body, and the plurality of first vacuum nozzles and the plurality of photographing positioning assemblies are respectively fixed on the lifting main body.

9. The integrated machine for laying and welding the battery piece insulating strips according to claim 1, wherein a welding transfer device is further arranged on the machine body, the welding transfer device comprises a plurality of welding transfer mechanisms, and the plurality of welding transfer mechanisms are respectively connected with the feeding welding device.

10. The method for laying and welding the battery piece insulating strips is characterized by comprising the following steps:

providing a battery piece to be welded and an EPE insulating strip to be welded;

guiding the cell to a righting device for righting the cell, and simultaneously transferring the EPE insulating strip to a material welding device by an insulating strip feeding device;

the cell lifting device lifts the restored cell upwards by 6-10 mm and then pauses, and the correlation laser sensor detects whether a bus bar on the cell is adhered to the EVA film;

if the battery piece is not adhered, the battery piece is continuously lifted upwards to a preset position by the battery piece lifting device;

the charging welding device drives the EPE insulating strip to enter a welding position, and the battery piece lifting device drives the battery piece to move downwards and enables the bus bar on the battery piece to be vertically overlapped with the EPE insulating strip;

the bus bar is welded with the EPE insulating strip corresponding to the bus bar by the feeding welding device, after the welding of the EPE insulating strip is completed, the feeding welding device resets, the battery piece lifting device drives the battery piece to move downwards, and the battery piece is placed on the guide rail righting device and is conveyed out.

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