CN220388332U - Welding production system for tab and cover plate - Google Patents

Abstract

The utility model provides a tab and cover plate welding production system, which comprises a ring-shaped magnetic suspension conveying line body, and a cover plate feeding unit, a battery cell feeding unit, a welding unit, a rubberizing unit, a dust removing unit, a Hipot testing unit and a blanking unit which are sequentially arranged along the conveying direction; the welding unit comprises a welding mechanism, a welding dust removing mechanism and a welding detection mechanism which are sequentially arranged; the dust removal unit comprises an upper large-surface dust removal mechanism, an upper large-surface detection mechanism and a lower large-surface dust removal and detection mechanism which are sequentially arranged, wherein the lower large-surface dust removal and detection mechanism is used for removing dust from the lower large surface of the battery cell processed by the rubberizing unit and detecting the appearance of the lower large surface of the battery cell after dust removal. According to the tab and cover plate welding production system, the annular magnetic suspension conveying line body is adopted, and mechanisms in the welding unit and the dust removing unit are integrated, so that the mechanism layout of the production system can be optimized, the production beat can be reduced, and the production efficiency can be improved.

Description

Welding production system for tab and cover plate

Technical Field

The utility model relates to the technical field of welding of battery lugs and cover plates, in particular to a production system for welding the lugs and the cover plates.

Background

With the development of new energy automobiles, the demand for lithium ion batteries is increasing, and the automation requirement for the assembly production of lithium ion batteries is also increasing. The welding of the tab and the cover plate is used as an important procedure in the production process of the lithium ion battery, and the automatic production can be basically realized through some automatic equipment.

The production process of welding the tab and the cover plate is complex, and various devices are needed to participate in production through the steps of cover plate and battery cell feeding, welding, rubberizing, dust removal, inspection after each procedure is completed, hipot detection and the like. Because the operation beats of the devices are different, the devices with longer production beats can lead to the lengthening of the whole production beats of the production system, so that the efficiency of the production system is reduced. Meanwhile, the welding and detection of the battery cell are generally carried out, and the equipment for large-surface dust removal on the battery cell and detection are respectively and independently arranged, so that the battery cell needs to be precisely positioned for many times to meet the quality requirement, the production beat is also greatly influenced in the positioning process, and the production efficiency of welding the electrode lugs and the cover plate is lower.

Disclosure of Invention

In view of the above, the present utility model is directed to a tab and cover plate welding production system, so as to improve the production efficiency.

In order to achieve the above purpose, the technical scheme of the utility model is realized as follows:

a tab and cover plate welding production system comprises an annular magnetic suspension conveying line body carrying a battery cell jig, and a cover plate feeding unit, a battery cell feeding unit, a welding unit, a rubberizing unit, a dust removing unit, a Hipot testing unit and a blanking unit which are sequentially arranged along the conveying direction of the magnetic suspension conveying line body; wherein,

the welding unit comprises a welding mechanism, a welding dust removing mechanism and a welding detection mechanism which are sequentially arranged, wherein the welding mechanism is used for welding the battery cell on the battery cell jig with the cover plate, the welding dust removing mechanism is used for removing dust from the welded battery cell, and the welding detection mechanism is used for detecting welding seams of the battery cell after dust removal;

the dust removal unit comprises an upper large surface dust removal mechanism, an upper large surface detection mechanism and a lower large surface dust removal and detection mechanism which are sequentially arranged, wherein the upper large surface dust removal mechanism is used for removing dust on the upper large surface of the battery cell after being processed by the rubberizing unit, the upper large surface detection mechanism is used for carrying out appearance detection on the upper large surface of the battery cell, and the lower large surface dust removal and detection mechanism is used for removing dust on the lower large surface of the battery cell after being processed by the rubberizing unit and carrying out appearance detection on the lower large surface of the battery cell after being subjected to dust removal.

Further, the automatic feeding device also comprises a first NG feeding mechanism positioned between the Hipot testing unit and the feeding unit, wherein the first NG feeding mechanism is used for feeding unqualified cells detected by any one of the welding mark detecting mechanism, the rubberizing detecting mechanism, the upper large surface detecting mechanism and the lower large surface dedusting and detecting mechanism.

Further, still include locate the apron material loading unit with electricity core tool dust removal mechanism between the unloading unit, electricity core tool dust removal mechanism is used for right on the magnetic suspension transfer chain body electricity core tool removes dust.

Further, the cover plate feeding unit is provided with a coding mechanism for coding the cover plate and a first manipulator for conveying the coded cover plate to the battery cell jig;

the first detection assembly is used for detecting the cover plate identification of the cover plate after the code is carved.

Further, a cover plate bin for storing the cover plates which are not coded and a transfer table arranged at one end of the cover plate bin are arranged at the upstream of the coding mechanism;

the cover plate storage bin is provided with a grabbing mechanism, the grabbing mechanism is used for conveying the cover plates which are stored in the cover plate storage bin and are not coded to the transfer platform, the first manipulator is close to the transfer platform and is arranged on the magnetic suspension conveying line body, and the first manipulator is used for grabbing the cover plates which are located on the transfer platform and are not coded to the coding mechanism.

Further, the battery cell feeding unit is used for conveying the battery cells to be welded to the battery cell jig;

and a second NG blanking mechanism is further arranged at the downstream of the battery cell feeding unit and used for blanking the battery cell-cover plate assembly of which the identification of the battery cell to be welded is not matched with the identification of the cover plate.

Further, the rubberizing unit comprises an adhesive tape unreeling component, a rubberizing compression roller and a cutting component;

the adhesive tape conveyed by the adhesive tape unreeling assembly winds on an adhesive tape sticking compression roller, and the adhesive tape sticking compression roller is driven by a first driving part to be pressed down to be abutted against an area to be stuck, so that the adhesive tape wound on the adhesive tape sticking compression roller is stuck on the area to be stuck;

the cutting assembly is provided with a cutting knife moving along a preset direction, and the cutting knife is used for cutting and separating the adhesive tape after the adhesive tape is adhered from the adhesive tape adhering compression roller.

Further, a plurality of guide rollers and supporting press rollers are sequentially arranged between the adhesive tape unreeling assembly and the rubberizing press rollers, the guide rollers are used for guiding the conveying of the adhesive tape, and the supporting press rollers are used for carrying out auxiliary compaction on the to-be-rubberized area; and/or the number of the groups of groups,

the cutting assembly comprises a second driving part arranged on the first driving part, and the power output end of the second driving part is provided with the cutting knife.

Further, the welding unit comprises two welding mechanisms which are arranged at the same side of the magnetic suspension conveying line body at intervals, and each welding mechanism is provided with two welding parts which are arranged in parallel and used for welding the battery cell and the cover plate together; and/or the number of the groups of groups,

the upper large-surface dust removing mechanism is provided with a plurality of first dust removing parts positioned above the magnetic suspension conveying line body, and the first dust removing parts are arranged at intervals along the conveying direction of the battery cell jig; and/or the number of the groups of groups,

the Hipot test unit is provided with a plurality of Hipot test mechanisms which are arranged at two sides of the conveying direction of the magnetic suspension conveying line body.

Further, the lower large-surface dust removing and detecting mechanism comprises a grabbing part moving along the height direction of the magnetic suspension conveying line body and a second dust removing part moving along the conveying direction of the magnetic suspension conveying line body, wherein the grabbing part is used for grabbing the welded battery cell to the upper side of the magnetic suspension conveying line body, and the second dust removing part can reciprocate below the grabbed battery cell and remove dust on the lower large surface of the grabbed battery cell.

Compared with the prior art, the utility model has the following advantages:

according to the tab and cover plate welding production system, the annular magnetic suspension conveying line body is adopted, and the welding mechanism, the welding dust removing mechanism and the welding detection mechanism in the welding unit, and the upper large surface dust removing mechanism, the upper large surface detection mechanism and the lower large surface dust removing and detecting mechanism in the dust removing unit are integrated, so that the optimization of the mechanism layout in the tab and cover plate welding production system can be realized, the production beat can be reduced, and the production efficiency is improved.

In addition, the first NG blanking mechanism is used for blanking unqualified battery cells detected by the detection mechanisms, so that the unqualified battery cells on the magnetic suspension conveying line body can be intensively blanked, the setting number of the blanking mechanisms in the production system is reduced, and the influence of repeated blanking on the production efficiency in the production process is reduced. The electric core jig is dedusted through the electric core jig dedusting mechanism, so that the situation that the electric core is damaged due to residual welding slag, dust and other foreign matters on the electric core jig is reduced.

In addition, through setting up first detection component in the mechanism of carving the code, carry out the apron sign detection to the apron after the code, be convenient for in time discern unqualified apron and distinguish, avoid unqualified apron to carry to the electric core tool on. And one end of the cover plate bin is provided with the middle rotary table, and the first manipulator is used for grabbing a plurality of cover plates at the same time for coding and detecting, so that the production efficiency of cover plate coding and detecting can be improved.

Secondly, through setting up second NG feed mechanism in electric core material loading unit low reaches, will wait to weld the sign of electric core and the electric core-apron subassembly of apron sign unmatched and carry out the unloading, can avoid the electric core-apron subassembly of sign unmatched to flow into each unit of low reaches, improves each unit production efficiency of low reaches.

In addition, the adhesive tape after the adhesive tape is cut by the cutting assembly in the adhesive mechanism, and the adhesive tape is different from the conventional adhesive technology that the adhesive tape is cut and then the adhesive tape is positioned, so that the adhesive tape can be positioned and stuck quickly, and the adhesive tape sticking efficiency is improved. The auxiliary compression roller is used for auxiliary compression of the rubberizing area, so that flatness of the rubberizing area is improved, rubberizing quality is improved, and rubberizing defective products are reduced.

Moreover, through arranging a plurality of welding mechanisms, a first dust removing part and a Hipot test unit, multi-station welding, dust removing and Hipot test are realized, and the production efficiency of the welding unit, the dust removing unit and the Hipot test unit can be improved. Through setting up the grabbing part in big face dust removal and detection mechanism down, promote the back to electric core behind the welding and remove dust to big face under the electric core to under the condition that need not overturn the electric core, realize removing dust to big face under the electric core, can improve the dust collection efficiency of electric core.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a plan layout of a production system according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a magnetic levitation transport line according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of a cover plate feeding unit according to an embodiment of the present utility model;

fig. 4 is a schematic structural diagram of a battery cell feeding unit according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a welding mechanism according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a welding dust removing mechanism and a welding detection mechanism according to an embodiment of the present utility model;

FIG. 7 is a schematic diagram of a rubberizing unit according to an embodiment of the utility model;

FIG. 8 is a schematic structural diagram of a rubberizing detection mechanism, an upper surface dust removal mechanism and an upper surface detection mechanism according to an embodiment of the utility model;

FIG. 9 is a schematic structural diagram of a large-surface dust removing and detecting mechanism under dust removing according to an embodiment of the present utility model;

FIG. 10 is a schematic structural diagram of a Hipot test mechanism according to an embodiment of the present utility model;

fig. 11 is a schematic structural diagram of a first NG blanking mechanism according to an embodiment of the present utility model;

fig. 12 is a schematic structural diagram of a dust removing mechanism of a battery cell jig according to an embodiment of the utility model;

fig. 13 is an enlarged view at a in fig. 7.

Reference numerals illustrate:

1. a magnetic suspension conveying line body; 11. a wire body bracket; 12. a magnetic levitation guide rail; 13. a cell jig; 2. a cover plate feeding unit; 21. a code engraving mechanism; 22. a grabbing mechanism; 23. a first manipulator; 24. a cover plate stock bin; 25. a transfer table; 26. a first detection assembly; 27. a cover plate pairing table; 3. a battery cell feeding unit; 31. the battery cell feeding mechanism; 311. a feeding linear module; 312. feeding mechanical clamping jaws; 4. a welding unit; 41. a welding mechanism; 411. a welding part; 4111. a laser head; 4112. welding a pressure head; 412. welding a movable bracket; 42. a welding and printing dust removing mechanism; 421. welding and printing a dust removal horizontal straight line module; 422. a welding and printing dust removing part; 423. welding and printing a dust removal vertical straight line module; 43. a welding mark detection mechanism; 431. a welding detection CCD camera; 5. a rubberizing unit; 51. a rubberizing unit; 511. an adhesive tape unreeling assembly; 512. a rubberizing press roller; 513. a cutting assembly; 5131. a cutting knife; 5132. a second driving section; 514. a first driving section; 515. a guide roller; 516. supporting a press roller; 52. a rubberizing detection mechanism; 521. a rubberizing detection CCD camera; 6. a dust removal unit; 61. a large-surface dust removing mechanism; 611. a first dust removing part; 6111. a dust removal pressing cylinder; 6112. a first dust removal port; 62. an upper large surface detection mechanism; 621. a large-surface detection CCD camera; 63. a lower large surface dust removing and detecting mechanism; 631. a gripping part; 6311. a clamping jaw vertical straight line module; 6312. a dust removal clamping jaw; 632. a second dust removing part; 6321. a second dust removal port; 6322. a horizontal linear module for dedusting the lower large surface; 633. a lower large-surface dust removal detection CCD camera; 7. a Hipot test unit; 71. a Hipot test mechanism; 711. a Hipot mechanical clamping jaw; 712. hipot transferring jig; 713. a Hipot pressing cylinder; 8. a blanking unit; 81. a battery core blanking mechanism; 9. a first NG blanking mechanism; 91. discharging clamping jaws; 92. a blanking linear module; 9a, a second NG blanking mechanism; 10. the battery cell jig dust removing mechanism; 101. a jig dust removing port; 102. the jig removes dust and moves the cylinder downwards.

Detailed Description

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.

In the description of the present utility model, it should be noted that, if terms indicating an orientation or positional relationship such as "upper", "lower", "inner", "outer", etc. are presented, they are based on the orientation or positional relationship shown in the drawings, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, if any, are also used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, in the description of the present utility model, the terms "mounted," "connected," and "connected," are to be construed broadly, unless otherwise specifically defined. For example, the connection can be fixed connection, detachable connection or integrated connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in combination with specific cases.

The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Example 1

The present embodiment relates to a tab and cover plate welding production system (hereinafter referred to as production system), and, in an overall structure, the production system is shown in combination with fig. 1 to 13, and includes a ring-shaped magnetic levitation transport line body 1 carrying a cell jig 13, and a cover plate feeding unit 2, a cell feeding unit 3, a welding unit 4, a rubberizing unit 5, a dust removal unit 6, a Hipot test unit 7, and a blanking unit 8 sequentially arranged along a transport direction of the magnetic levitation transport line body 1.

Wherein the welding unit 4 includes a welding mechanism 41, a welding dust removing mechanism 42, and a welding detection mechanism 43, which are sequentially arranged. The welding mechanism 41 is used for welding the battery cells on the battery cell jig 13 and the cover plate together, the welding dust removing mechanism 42 is used for removing dust from the welded battery cells, and the welding detection mechanism 43 is used for detecting welding seams of the dust removed battery cells.

In addition, the dust removing unit 6 includes an upper large-surface dust removing mechanism 61, an upper large-surface detecting mechanism 62, and a lower large-surface dust removing and detecting mechanism 63, which are arranged in this order. The upper surface dust removing mechanism 61 is used for removing dust on the upper surface of the battery core processed by the rubberizing unit 51, and the upper surface detecting mechanism 62 is used for detecting the appearance of the upper surface of the battery core. The lower large surface dust removing and detecting mechanism 63 is used for removing dust from the lower large surface of the battery core processed by the rubberizing unit 51, and detecting the appearance of the lower large surface of the battery core after dust removal.

By adopting the above structure, by adopting the magnetic levitation transport line body 1 in the ring shape and integrating the welding mechanism 41, the welding dust removing mechanism 42 and the welding detection mechanism 43 in the welding unit 4, and the upper large surface dust removing mechanism 61, the upper large surface detection mechanism 62 and the lower large surface dust removing and detecting mechanism 63 in the dust removing unit 6, the optimization of the mechanism layout in the tab and cover plate welding production system can be realized, and the production tact can be reduced, and the production efficiency can be improved.

Based on the above overall description, specifically, referring to fig. 1 to 2, the magnetic levitation transport line body 1 of the present embodiment includes a line body bracket 11, a magnetic levitation guide 12, and a cell jig 13. The magnetic suspension conveying line body 1 can adopt the existing magnetic suspension conveying system, and only the electric core jig 13 can slide on the magnetic suspension guide rail 12 when the magnetic suspension conveying line body is in specific implementation. The conveying direction of this embodiment is a clockwise direction of the ring-shaped magnetic levitation transport line body 1 shown in fig. 1.

Meanwhile, the production system of the embodiment further comprises a data processing unit for collecting detection data of each unit and recording unqualified battery cells or unqualified cover plate codes. In specific implementation, it is preferable that the battery cell jig 13 is provided with a jig code, and the jig code is bound with the cover plate and the battery cell code, so that the blanking unit 8 can identify the unqualified battery cell or the cover plate by reading the jig code. Specifically, the carrier code can adopt RFID (Radio Frequency Identification) electronic tags and the like as information carriers, which is beneficial to improving the reading rate of the carrier code.

In addition, in the implementation, as shown in fig. 1 and fig. 4, the cell feeding unit 3 includes a plurality of cell feeding mechanisms 31, and the cell feeding mechanisms 31 drive the feeding mechanical clamping jaws 312 to convey the grabbed cells to the cell jig 13 through the feeding linear module 311. In addition, in the present embodiment, the cell blanking mechanism 81 in the blanking unit 8 has the same structure as the cell feeding mechanism 31 described above, and will not be described here again.

Further, specifically, as shown in fig. 1 and 6, the solder dust removing mechanism 42 includes a solder dust removing portion 422, a solder dust removing horizontal linear module 421 for driving the solder dust removing portion 422 to move horizontally, and a solder dust removing vertical linear module 423 for driving the solder dust removing portion 422 to move vertically. So set up, the welding mark dust removing mechanism 42 of this embodiment can move to the welding mark position vertically or horizontally to clear away the residual dust after welding, be convenient for follow-up welding mark detection CCD camera 431 that sets up in the welding mark detection mechanism 43 detects the welding seam.

As a preferred embodiment, referring to fig. 1 and 11, the production system of the present embodiment further includes a first NG blanking mechanism 9 located between the Hipot test unit 7 and the blanking unit 8, where the first NG blanking mechanism 9 is used for blanking the failed cells detected by any one of the welding mark detecting mechanism 43, the rubberizing detecting mechanism 52, the upper face detecting mechanism 62 and the lower face dust removing and detecting mechanism 63.

So set up, be used for the unqualified electric core that a plurality of detection mechanisms detected to carry out the unloading through first NG unloading mechanism 9, but all set up a unloading structure behind each above-mentioned detection mechanism and be used for the unloading, can concentrate the unloading to the unqualified electric core on the magnetic suspension transfer chain body 1, simplify the setting quantity of unloading mechanism in the production system, reduce the influence of unloading to production efficiency many times in the production process.

Specifically set up, first NG feed mechanism 9 includes striding the straight line module 92 of unloading of locating on the magnetic suspension transfer chain body 1 to and locate the unloading clamp claw 91 on the straight line module 92 of unloading, still include unloading recognition device. When the discharging identification device identifies that the unqualified cell detected by any mechanism arrives, the discharging linear module 92 can drive the discharging clamping jaw 91 to linearly move to the position above the unqualified cell, and the unqualified cell is grabbed and moved out of the magnetic suspension conveying line body 1.

As a preferred embodiment, referring to fig. 1 and 12, the production system of the present embodiment further includes a cell jig dust removing mechanism 10 disposed between the cover plate feeding unit 2 and the blanking unit 8, where the cell jig dust removing mechanism 10 is used for removing dust from a cell jig 13 on the magnetic levitation transport line body 1. At this time, the battery core jig 13 is dedusted by the battery core jig dedusting mechanism 10, which is favorable for reducing the situation that the battery core is damaged due to the residual welding slag, dust and other foreign matters on the battery core jig 13.

Specifically set up, electric core tool dust removal mechanism 10 includes tool dust removal mouth 101 and is used for driving tool dust removal that tool dust removal mouth 101 reciprocated and moves cylinder 102 down, and wherein tool dust removal mouth 101 locates magnetic suspension transfer chain body 1 top, can clear away remaining foreign matter such as welding slag and dust on the tool. In addition, through setting up tool dust removal and moving down cylinder 102, be convenient for adjust the dust removal distance between dust removal mouth and the electric core tool 13, improve the dust removal effect of electric core tool dust removal mechanism 10.

In this embodiment, as a preferred embodiment, referring to fig. 1 and 3, the cover plate feeding unit 2 includes a coding mechanism 21 for coding the cover plate, and a first manipulator 23 for conveying the coded cover plate to the cell jig 13. So set up, through setting up first detection component 26 in the mechanism 21 of carving the code, detect the apron after the code of carving the code, be convenient for discern unqualified apron to avoid carrying unqualified apron to on the electric core tool 13.

As a preferred embodiment, a cover stock bin 24 for storing non-coded cover plates is provided upstream of the coding mechanism 21, and a transfer table 25 is provided at one end of the cover stock bin 24. The cover plate bin 24 is provided with a grabbing mechanism 22, and the grabbing mechanism 22 is used for conveying the uncoded cover plates stored in the cover plate bin 24 to the transfer table 25. The first manipulator 23 is disposed close to the middle turntable 25 and the magnetic suspension conveying line body 1, and besides conveying the cover plate after being coded onto the electric core jig 13, the first manipulator 23 can also be used for grabbing the cover plate which is located on the middle turntable 25 and is not coded onto the coding mechanism 21.

At this time, the production efficiency of cover plate coding and detection can be improved by arranging the transfer table 25 at one end of the cover plate storage bin 24 and grabbing a plurality of cover plates by using the first manipulator 23 at the same time. Meanwhile, the first manipulator 23 not only can grasp the cover plate which is positioned on the middle rotary table 25 and is not coded to the coding mechanism 21, but also can be used for conveying the coded cover plate to the battery cell jig 13, so that the setting number of the manipulators can be reduced, the picking and placing actions of the first manipulator 23 on the cover plate are coherent, and the picking and placing efficiency of the cover plate is improved.

In specific implementation, this embodiment will be described in detail with reference to the case where the number of cover plates clamped at the same time is 4. First, the grabbing mechanism 22 grabs the cover plates which are not coded from the cover plate bin 24 and puts the cover plates on the transfer table 25 in a group of 4 cover plates, then the first manipulator 23 grabs the 4 cover plates from the transfer table 25, conveys the cover plates to the 4 coding mechanisms 21 for coding at the same time, and conveys the coded cover plates to the first detection assembly 26 for detection.

It should be noted that, the cover plate feeding unit 2 further includes a cover plate pairing table 27 disposed at one side of the first detecting assembly 26, and the cover plate pairing table 27 is used for temporarily placing the qualified cover plate and the unqualified cover plate after the detection of the first detecting assembly 26. Specifically, after a group of 4 cover plates are detected, if all the cover plates are qualified, the cover plates are directly conveyed to the battery cell jig 13 by the first manipulator 23. If there is a defective cover plate, the defective cover plate is placed at one end of the cover plate mating table 27, and the defective cover plate is placed at the other end of the cover plate mating table 27.

At this time, the number of qualified cover plates on the cover plate pairing table 27 does not satisfy a group of 4, when the subsequent defective cover plates appear again, the group of 4 qualified cover plates which do not satisfy the same are placed on the cover plate pairing table 27, after the number of the qualified cover plates satisfies 4, the first manipulator 23 grabs the group of 4 qualified cover plates from the cover plate pairing table 27, and then the group of 4 qualified cover plates are conveyed to the cell jig 13. The advantage of this arrangement is that the production efficiency is prevented from being affected by the empty cell jig 13.

As a preferred embodiment, referring to fig. 1 and 11 specifically, the cell feeding unit 3 in this embodiment is used to convey the cells to be soldered onto the cell fixture 13. Meanwhile, a second NG blanking mechanism 9a is further arranged at the downstream of the battery cell feeding unit 3, and the second NG blanking mechanism 9a is used for blanking a battery cell-cover plate assembly of which the identification of the battery cell to be welded is not matched with the identification of the cover plate.

At this time, by arranging the second NG blanking mechanism 9a at the downstream of the cell feeding unit 3, the cell-cover plate assembly with the unmatched identifiers of the cells to be welded and the cover plate identifier is blanked, so that the cell-cover plate assembly with the unmatched identifiers can be prevented from flowing into each downstream unit, and the production efficiency of each downstream unit is improved. In specific implementation, the second NG blanking mechanism 9a has the same structure as the first NG blanking mechanism 9, and will not be described in detail here.

As a preferred embodiment, referring to fig. 1, 7 and 13, the taping unit 51 includes a tape unreeling assembly 511, a taping press roller 512 and a cutting assembly 513. The adhesive tape fed by the adhesive tape unreeling component 511 winds on the adhesive tape attaching press roller 512, and the adhesive tape attaching press roller 512 receives the driving of the first driving part 514, and can be pressed down to be abutted against the area to be attached, and the adhesive tape wound on the adhesive tape attaching press roller 512 is attached to the area to be attached. Also, the cutting assembly 513 has a cutting blade 5131 moving in a predetermined direction, and the cutting blade 5131 is used to cut and separate the adhesive tape after the adhesive tape is applied from the adhesive applying roller 512.

At this time, the adhesive mechanism of this embodiment cuts the adhesive tape after the adhesive tape is pasted through the cutting component 513 with the cutting knife 5131, which is different from the conventional adhesive technology of firstly cutting the adhesive tape and then positioning the adhesive tape, and can position and paste the adhesive tape according to the actual pasting position and then cut the adhesive tape according to the specific required pasting length, thereby realizing the quick positioning and pasting of the adhesive tape and improving the adhesive tape pasting efficiency.

In particular, as a preferred implementation manner, a plurality of guide rollers 515 and a support roller 516 are sequentially disposed between the tape unreeling assembly 511 and the rubberizing roller 512 of this embodiment. The guiding roller 515 is used for guiding the conveying of the adhesive tape, and the supporting pressing roller 516 is used for performing auxiliary pressing on the area to be glued. Preferably, the cutting assembly 513 includes a second driving portion 5132 disposed on the first driving portion 514, and a cutting blade 5131 is disposed on a power output end of the second driving portion 5132. At this time, treat rubberizing regional supplementary compaction through supplementary compression roller, be favorable to improving the roughness in viscose region, improve rubberizing quality, reduce rubberizing defective products.

In addition, in the embodiment, as shown in fig. 1 and 8, a rubberizing detection mechanism 52 for detecting the rubberizing quality is preferably further provided behind the rubberizing unit 51, and the rubberizing detection mechanism 52 includes a rubberizing detection CCD camera 521. The rubberizing detection CCD camera 521 is used for carrying out visual detection on a rubberizing area, so that a cell with a rubberizing quality problem can be identified as an unqualified cell, and the unqualified cell is used for the subsequent first NG blanking mechanism 9 to identify and blanking.

In practice, the tape is guided by the tape unreeling mechanism through the guide roller 515 to the supporting press roller 516. The first driving part 514 drives the auxiliary pressing roller and the rubberizing pressing roller 512 to move downwards to a region to be rubberized on the large surface of the battery cell, namely a battery cell welding line region. After the auxiliary press roller presses the tape rubberizing area, the rubberizing press roller 512 presses and pastes the adhesive tape to the battery cell. When the set adhering length is reached, the second driving part 5132 drives the cutting knife 5131 to cut the adhesive tape, so as to realize the adhesive protection of the welding line of the battery cell.

In this embodiment, as a preferred embodiment, as shown in fig. 1 and 5, the welding unit 4 includes two welding mechanisms 41 disposed on the same side of the magnetic levitation transport line body 1 at intervals, and each welding mechanism 41 has two welding portions 411 disposed in parallel for welding the battery cell and the cover plate together. Preferably, as shown in fig. 1 and 8, the upper surface dust removing mechanism 61 has a plurality of first dust removing portions 611 located above the magnetic levitation transport line body 1, and the first dust removing portions 611 are arranged at intervals along the transport direction of the cell jig 13.

As a preferred embodiment, as shown in fig. 1 and 10, the Hipot test unit 7 of the present embodiment has a plurality of Hipot test mechanisms 71 arranged on both sides of the conveyance direction of the magnetic levitation transport line body 1. So arranged, by arranging the plurality of welding mechanisms 41, the first dust removing part 611 and the Hipot test unit 7 in this embodiment, multi-station welding, dust removing and Hipot test are realized, and the production efficiency of the welding unit 4, the dust removing unit 6 and the Hipot test unit 7 can be improved.

In particular, in the present embodiment, two welding mechanisms 41 are provided as an example, and it is understood that the number of welding mechanisms 41 may be increased or decreased according to the production requirement, in addition to providing two welding mechanisms 41. In detail, to achieve simultaneous welding of multiple electric core welding points, each welding mechanism 41 includes a plurality of welding parts 411 and a welding moving frame 412, wherein the welding parts 411 include a laser head 4111 and a welding ram 4112 for tab welding, and the welding moving frame 412 can drive the welding parts 411 to move to the positions to be welded.

Meanwhile, a plurality of first dust removing portions 611 are arranged in the upper large-surface dust removing mechanism 61, and when the magnetic suspension conveying line body 1 is in practical implementation, the first dust removing portions 611 comprise first dust removing openings 6112 arranged above the magnetic suspension conveying line body 1, and dust removing pressing cylinders 6111 capable of driving the first dust removing openings 6112 to be close to the upper large surface of the battery cell. Through arranging a plurality of first dust removing parts 611 at intervals along the conveying direction of the battery cell jig 13, dust is removed from the upper surface of the battery cell for a plurality of times, and the reliability of dust removal can be ensured.

Here, the Hipot (high potential test electrical safety stress test) high-potential test electric safety pressure test in the present embodiment, that is, the dielectric withstand voltage test, is to detect the electric safety performance of the battery cell by applying a voltage to the battery cell for a period of time. The battery cell is usually subjected to a Hipot test by a pulse detector, and the electrical performance requirement of the battery cell can be ensured through the Hipot test.

Specifically, the Hipot test mechanism 71 includes a Hipot mechanical clamping jaw 711 for grabbing a battery cell, a Hipot transfer jig 712 for carrying the grabbed battery cell, and a Hipot pressing cylinder 713 for driving the Hipot mechanical clamping jaw 711 to move up and down. After the HiPOT mechanical clamping jaw 711 is driven to move downwards and grab a plurality of electric cores by the HiPOT pushing cylinder 713, the electric cores are placed in the HiPOT transfer jig 712, so that the electric cores can be tested simultaneously, and the HiPOT testing efficiency can be improved.

As a preferred embodiment, as shown in fig. 1 and 9, the lower large-surface dust removing and detecting mechanism 63 of the present embodiment includes a gripping portion 631 that moves in the height direction of the magnetic levitation transport line body 1, and a second dust removing portion 632 that moves in the transport direction of the magnetic levitation transport line body 1. The grabbing portion 631 is configured to grab the welded electrical core above the magnetic suspension conveying line body 1, and the second dust removing portion 632 is configured to reciprocate below the grabbed electrical core and remove dust on a lower large surface of the grabbed electrical core.

So set up, the big face dust removal and detection mechanism 63 under this embodiment promotes the electric core after welding through snatch portion 631, by the second dust removal portion 632 reciprocating motion of electric core below after promoting, realizes the dust removal to the big face under the electric core. Therefore, under the condition that the battery core is not required to be overturned, the dust removal of the large surface under the battery core is realized, the overturning action of the battery core is reduced, and the dust removal efficiency of the battery core can be improved.

In particular, the gripping portion 631 includes a vertical linear clamping jaw module 6311 disposed above the magnetic levitation transport line body 1, and a dust removing clamping jaw 6312 disposed on the vertical linear clamping jaw module 6311. The clamping jaw vertical linear module 6311 can drive the dust removing clamping jaw 6312 to lift the grabbed battery cell. Meanwhile, the second dust removing part 632 includes a second dust removing opening 6321 and a lower large-surface dust removing horizontal linear module 6322 for driving the second dust removing opening 6321 to move in the horizontal direction and purge the lower large surface of the battery cell.

Furthermore, the lower large-surface dust removing and detecting mechanism 63 further includes a lower large-surface dust removing and detecting CCD camera 633, and the lower large-surface dust removing and detecting CCD camera 633 is provided on the second dust removing portion 632 and faces vertically upward toward the lower large surface of the battery cell. Along with the horizontal linear movement of the second dust removing portion 632, the lower large-surface dust removing detection CCD camera 633 can detect the dust removing effect of the lower large surface of the battery cell.

Further, specifically, referring to fig. 1 and 8, the dust removing unit 6 in the present embodiment includes an upper face detecting mechanism 62 in addition to a lower face dust removing and detecting mechanism 63. The upper surface detection mechanism 62 includes an upper surface detection CCD camera 621 disposed on the first dust removing portion 611, and is configured to detect foreign objects and damage on the surface of the large-surface cell of the cell after dust removal by the upper surface dust removing mechanism 61.

When the production system of the embodiment is used, the cover plate feeding unit 2 firstly codes, detects and feeds the four cover plates to the magnetic suspension conveying line body 1 at the same time, and then the battery cell to be welded is fed through the battery cell feeding unit 3. For the cell-cover plate assembly with the unmatched identifiers of the cells to be welded and the cover plate, the second NG blanking mechanism 9a can be used for blanking the unmatched cell-cover plate assembly, so that unnecessary production waste is generated due to the fact that unmatched cell-cover plate assembly is processed in the links of subsequent welding, rubberizing, dust removal, hipot detection and the like.

Then, the battery cells enter the welding unit 4, and the welding unit 4 integrates the welding mechanism 41, the welding dust removing mechanism 42 and the welding detection mechanism 43, adopts a multi-station design, can finish welding and welding dust removing of a plurality of battery cells at one time, and performs inspection on welding seams of each battery cell. The inspected battery cells sequentially pass through the rubberizing unit 5 and the dust removing unit 6 to carry out welding and printing rubberizing and surface dust removing.

The integrated multi-station rubberizing unit 51 and rubberizing detection mechanism 52 can rapidly finish rubberizing and detection of a plurality of battery cells. In addition, the upper large surface dust removing mechanism 61, the upper large surface detecting mechanism 62 and the lower large surface dust removing and detecting mechanism 63 provided in the dust removing unit 6 complete dust removal and detection of the upper and lower large surfaces of the battery cell. The cells then enter a Hipot test unit 7 comprising a plurality of multi-station Hipot test mechanisms 71 to complete the Hipot test.

Finally, the first NG blanking mechanism 9 performs blanking on the unqualified battery cells detected by any one of the welding mark detection mechanism 43, the rubberizing detection mechanism 52, the upper large surface detection mechanism 62 and the lower large surface dust removal and detection mechanism 63, and then the blanking unit 8 performs blanking on the qualified battery cells to enable the battery cell jig to be empty. After the empty battery cell jig is dedusted by the battery cell jig dedusting mechanism 10, the empty battery cell jig is conveyed to the cover plate feeding unit 2 again through the annular magnetic suspension conveying line body 1, and at the moment, one production cycle is completed. By such circulation, uninterrupted and efficient production of the production system can be achieved.

As described above, in the production system of the present embodiment, by adopting the magnetic levitation transport line body 1 in the shape of a ring and integrating the welding mechanism 41, the welding dust removing mechanism 42, and the welding detection mechanism 43 in the welding unit 4, and the upper face dust removing mechanism 61, the upper face detection mechanism 62, and the lower face dust removing and detecting mechanism 63 in the dust removing unit 6, optimization of the mechanism layout in the production system of the present embodiment can be achieved, and the production tact can be reduced, and the production efficiency can be improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (10)

1. A tab and apron welding production system, its characterized in that:

the device comprises a ring-shaped magnetic suspension conveying line body carrying a battery cell jig, and a cover plate feeding unit, a battery cell feeding unit, a welding unit, a rubberizing unit, a dust removing unit, a Hipot testing unit and a blanking unit which are sequentially arranged along the conveying direction of the magnetic suspension conveying line body; wherein,

the welding unit comprises a welding mechanism, a welding dust removing mechanism and a welding detection mechanism which are sequentially arranged, wherein the welding mechanism is used for welding the battery cell on the battery cell jig with the cover plate, the welding dust removing mechanism is used for removing dust from the welded battery cell, and the welding detection mechanism is used for detecting welding seams of the battery cell after dust removal;

the dust removal unit comprises an upper large surface dust removal mechanism, an upper large surface detection mechanism and a lower large surface dust removal and detection mechanism which are sequentially arranged, wherein the upper large surface dust removal mechanism is used for removing dust on the upper large surface of the battery cell after being processed by the rubberizing unit, the upper large surface detection mechanism is used for carrying out appearance detection on the upper large surface of the battery cell, and the lower large surface dust removal and detection mechanism is used for removing dust on the lower large surface of the battery cell after being processed by the rubberizing unit and carrying out appearance detection on the lower large surface of the battery cell after being subjected to dust removal.

2. The tab and cover plate welding production system of claim 1, wherein:

the automatic feeding device is characterized by further comprising a first NG feeding mechanism located between the Hipot testing unit and the feeding unit, wherein the first NG feeding mechanism is used for feeding unqualified cells detected by any one of the welding mark detecting mechanism, the rubberizing detecting mechanism, the upper large-area detecting mechanism and the lower large-area dedusting and detecting mechanism.

3. The tab and cover plate welding production system of claim 1, wherein:

the electric core jig dust removing mechanism is arranged between the cover plate feeding unit and the discharging unit and used for removing dust from the electric core jigs on the magnetic suspension conveying line body.

4. The tab and cover plate welding production system of claim 1, wherein:

the cover plate feeding unit is provided with a coding mechanism for coding the cover plate and a first manipulator for conveying the coded cover plate to the battery cell jig;

the first detection assembly is used for detecting the cover plate identification of the cover plate after the code is carved.

5. The tab and cover plate welding production system of claim 4, wherein:

a cover plate bin for storing the cover plates which are not coded and a transfer table arranged at one end of the cover plate bin are arranged at the upstream of the coding mechanism;

the cover plate storage bin is provided with a grabbing mechanism, the grabbing mechanism is used for conveying the cover plates which are stored in the cover plate storage bin and are not coded to the transfer platform, the first manipulator is close to the transfer platform and is arranged on the magnetic suspension conveying line body, and the first manipulator is used for grabbing the cover plates which are located on the transfer platform and are not coded to the coding mechanism.

6. The tab and cover plate welding production system of claim 4, wherein:

the battery cell feeding unit is used for conveying the battery cells to be welded to the battery cell jig;

and a second NG blanking mechanism is further arranged at the downstream of the battery cell feeding unit and used for blanking the battery cell-cover plate assembly of which the identification of the battery cell to be welded is not matched with the identification of the cover plate.

7. The tab and cover plate welding production system of claim 1, wherein:

the rubberizing unit comprises an adhesive tape unreeling component, a rubberizing compression roller and a cutting component;

the adhesive tape conveyed by the adhesive tape unreeling assembly winds on an adhesive tape sticking compression roller, and the adhesive tape sticking compression roller is driven by a first driving part to be pressed down to be abutted against an area to be stuck, so that the adhesive tape wound on the adhesive tape sticking compression roller is stuck on the area to be stuck;

the cutting assembly is provided with a cutting knife moving along a preset direction, and the cutting knife is used for cutting and separating the adhesive tape after the adhesive tape is adhered from the adhesive tape adhering compression roller.

8. The tab and cover plate welding production system of claim 7, wherein:

a plurality of guide rollers and supporting press rollers are sequentially arranged between the adhesive tape unreeling assembly and the adhesive tape sticking press rollers, the guide rollers are used for guiding the adhesive tape to be conveyed, and the supporting press rollers are used for carrying out auxiliary compaction on the adhesive tape to be stuck area; and/or the number of the groups of groups,

the cutting assembly comprises a second driving part arranged on the first driving part, and the power output end of the second driving part is provided with the cutting knife.

9. The tab and cover plate welding production system of claim 1, wherein:

the welding unit comprises two welding mechanisms which are arranged on the same side of the magnetic suspension conveying line body at intervals, and each welding mechanism is provided with two welding parts which are arranged in parallel and used for welding the battery cell and the cover plate together; and/or the number of the groups of groups,

the upper large-surface dust removing mechanism is provided with a plurality of first dust removing parts positioned above the magnetic suspension conveying line body, and the first dust removing parts are arranged at intervals along the conveying direction of the battery cell jig; and/or the number of the groups of groups,

the Hipot test unit is provided with a plurality of Hipot test mechanisms which are arranged at two sides of the conveying direction of the magnetic suspension conveying line body.

10. The tab and cover plate welding production system according to any one of claims 1-9, wherein:

the lower large surface dust removing and detecting mechanism comprises a grabbing part moving along the height direction of the magnetic suspension conveying line body and a second dust removing part moving along the conveying direction of the magnetic suspension conveying line body, wherein the grabbing part is used for grabbing the welded battery cell to the upper part of the magnetic suspension conveying line body, and the second dust removing part can reciprocate below the grabbed battery cell and remove dust on the lower large surface of the grabbed battery cell.