CN211376792U

CN211376792U - Automatic battery cell processing equipment

Info

Publication number: CN211376792U
Application number: CN202020232795.XU
Authority: CN
Inventors: 周俊雄; 黎良鹤; 黄仕生; 温祖陵
Original assignee: Guangdong Lyric Robot Automation Co Ltd
Current assignee: Guangdong Lyric Robot Automation Co Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-08-28
Anticipated expiration: 2030-02-28

Abstract

The application relates to an automatic battery cell processing device, and belongs to the technical field of battery manufacturing. The application provides automatic battery cell processing equipment which comprises a tab welding device, a tab welding device and a processing device, wherein the tab welding device is used for welding multiple layers of tabs with the same polarity of a battery cell into a whole; the battery cell shell entering device is butted with the lug welding device and is used for sending the battery cell into the bottom shell and welding the lug of the battery cell and the bottom shell into a whole; and the shell cover laser welding device is used for welding the shell cover and the shell into a whole by butting the electric core. Compared with the existing automatic battery cell processing equipment, the automatic battery cell processing equipment in the embodiment of the application can realize the automatic production of irregular battery cells, and improves the production efficiency.

Description

Automatic battery cell processing equipment

Technical Field

The application relates to the technical field of battery manufacturing, in particular to automatic battery cell processing equipment.

Background

The existing automatic battery cell processing device is mainly used for processing regular cylindrical battery cells, such as winding type battery cells and the like. For the special-shaped battery cells with the positive and negative electrode lugs arranged along the circumferential direction of the battery cells, the conventional automatic battery cell processing device cannot meet the automatic processing and production of the battery cells.

SUMMERY OF THE UTILITY MODEL

For this reason, this application provides an electric core automatic processing device, can realize the automated production of dysmorphism irregular battery, has improved production efficiency.

The embodiment of the application provides automatic battery cell processing equipment, which comprises a tab welding device, a tab welding device and a processing device, wherein the tab welding device is used for welding multiple layers of tabs with the same polarity of a battery cell into a whole; the battery cell shell entering device is butted with the lug welding device and is used for sending the battery cell into the bottom shell and welding the lug of the battery cell and the bottom shell into a whole; and the shell cover laser welding device is used for welding the shell cover and the shell into a whole by butting the electric core.

Compared with the existing automatic battery cell processing equipment, the automatic battery cell processing equipment in the embodiment of the application can realize the automatic production of irregular battery cells, and improves the production efficiency.

In addition, the automatic battery cell processing equipment according to the embodiment of the application also has the following additional technical characteristics:

according to some embodiments of the present application, the tab welding device includes a jig reflow line, on which a reflow jig moving synchronously is disposed along a traveling path thereof; the welding section is arranged close to the jig backflow line and used for sequentially welding lugs on two sides of the battery cell in the backflow jig; and the rubberizing section is butted with the welding section and is used for rubberizing the welding and printing surface of the lug and the peripheral wall of the battery cell and outputting the battery cell qualified in rubberizing. Through this kind of arrangement form, can weld the both sides utmost point ear of electric core, production efficiency is high.

According to some embodiments of the present application, the jig reflow line further includes a reflow table for driving the reflow jig to move, the reflow table being provided with a plurality of processing stations; and the pressing anti-shaking mechanism is used for pressing the backflow jig positioned on the processing position on the backflow table. Through this kind of arrangement form, not only guaranteed the stability of backward flow tool, still do benefit to other material loading or feeding agencies to the accurate location of electric core.

According to some embodiments of the application, a plurality of processing positions are arranged in a row, the pressing anti-shaking mechanism comprises a driving mechanism and a linkage shaft, and the driving mechanism can drive the linkage shaft to rotate so as to push a plurality of backflow jigs located in the processing positions in the row to be synchronously pressed on the backflow table through the linkage shaft. The arrangement form has simple structure and stable and accurate transmission.

According to some embodiments of the application, the rubberizing section comprises a tab rubberizing station, and the tab rubberizing station is used for rubberizing a protective adhesive on a welding and printing surface of a tab and outputting a battery cell qualified in rubberizing after rubberizing quality detection; and a peripheral wall encapsulation station which is butted with the lug encapsulation station and used for wrapping the peripheral wall of the battery cell with the adhesive, and outputting the battery cell qualified in encapsulation after encapsulation quality detection. The pole ear and the peripheral wall of the battery cell can be rubberized through the rubberizing section, and the reliability of the battery cell can be improved.

According to some embodiments of the application, the welding section includes two tab welding stations and a position switching mechanism, each tab welding station corresponds to a tab on one side of the battery cell, and the position switching mechanism is arranged between the two tab welding stations and is used for rotating the battery cell so that unprocessed tabs face outwards. Through this kind of arrangement form, use same utmost point ear welding station can weld the both sides utmost point ear of electric core promptly in proper order, reduce assembly cost.

According to some embodiments of the application, the battery cell shell entering device comprises a shell entering turntable, wherein a plurality of bottom shell jigs which synchronously rotate are arranged on the shell entering turntable along the circumferential direction of the shell entering turntable; the bottom shell feeding mechanical arm is used for feeding the bottom shell to the bottom shell jig; the battery cell feeding manipulator is butted with the lug welding device and is used for feeding the battery cell into a bottom shell on the bottom shell jig and spreading lugs on two sides of the battery cell so as to enable the lugs to be in contact with the inner wall of the bottom shell; and the laser welding mechanism is used for welding the lug of the battery cell and the bottom shell into a whole. Through this kind of arrangement form, can carry out the equipment welding of drain pan and electric core high-efficiently.

According to some embodiments of the application, the cell casing device further comprises a lower gasket feeding mechanism, wherein the lower gasket feeding mechanism is used for feeding the lower gasket into the bottom casing before the cell is fed into the bottom casing; and the lower gasket feeding mechanism is used for feeding the upper gasket into the bottom shell after the battery cell is fed into the bottom shell. The assembling work of the gasket can be completed on the bottom shell jig, and the whole automatic battery cell processing equipment can be simplified.

According to some embodiments of the application, the shell cover laser welding device comprises a shell cover welding station, a welding station and a welding station, wherein the shell cover welding station is used for welding the shell body welded with the battery cell and the shell cover into a whole; the battery cell transferring manipulator is used for conveying the shell welded with the battery cell to a shell cover welding station; and the shell cover feeding deviation rectifying mechanism is used for adjusting the position of the shell cover according to the shell body welded with the battery cell and then conveying the shell cover to a shell cover welding station so that the shell cover corresponds to the position of the shell body welded with the battery cell. Through this kind of arrangement form can weld two sets of batteries simultaneously, and can accurately dock drain pan and shell cover.

According to some embodiments of the application, the automatic battery cell processing equipment further comprises a finished product detection device, the finished product detection device is in butt joint with the shell cover laser welding device, and the finished product detection device comprises a finished product CCD visual detection mechanism and is used for sorting out good products output by the shell cover laser welding device; and a finished product Hipot detection mechanism used for performing insulation resistance test on the good products and outputting qualified batteries. Through this kind of arrangement form, CCD visual detection earlier, the detection of Hipot again can rationally improve detection efficiency, improves the battery finished product qualification rate.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a plan layout view of an automatic battery cell processing apparatus according to an embodiment of the present application;

fig. 2 is a plan layout view of a lug welding device in automatic battery cell processing equipment according to an embodiment of the present application;

fig. 3 is a plan layout diagram of a cell casing entering device, a casing cover laser welding device, and a finished product detecting device in the automatic cell processing apparatus according to the embodiment of the present application;

fig. 4 is a partial structure diagram of a fixture return line in the automatic battery cell processing apparatus according to the embodiment of the present application;

fig. 5 is a schematic structural diagram of a reflow jig in the automatic battery cell processing apparatus provided in the embodiment of the present application;

fig. 6 is a schematic structural diagram of a position switching mechanism in the automatic battery cell processing apparatus according to the embodiment of the present application;

fig. 7 is a schematic structural diagram of an electrode tab rubberizing station in the automatic battery cell processing equipment provided in the embodiment of the present application;

fig. 8 is a schematic structural diagram of a middle ear Hipot detection table of an automatic battery cell processing device provided in the embodiment of the present application;

fig. 9 is a schematic structural diagram of a potting mechanism in the automatic battery cell processing apparatus according to the embodiment of the present application;

fig. 10 is a schematic structural diagram of a glue winding detection mechanism in the automatic battery cell processing apparatus according to the embodiment of the present application;

fig. 11 is a schematic mechanism diagram of a bottom case loading station in the automatic battery cell processing apparatus according to the embodiment of the present application;

fig. 12 is a schematic structural diagram of a cell loading manipulator in an automatic cell processing device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a lower gasket feeding mechanism in the automatic battery cell processing apparatus according to the embodiment of the present application;

fig. 14 is a schematic mechanism diagram of a shell cover laser welding device in automatic battery cell processing equipment according to an embodiment of the present application;

fig. 15 is a flowchart of a work of the automatic battery cell processing apparatus according to the embodiment of the present application;

fig. 16 is a schematic structural diagram of a battery cell corresponding to the automatic battery cell processing apparatus provided in the embodiment of the present application (before tab bending);

fig. 17 is a partial enlarged view of a portion a in fig. 12.

Icon: 100-automatic battery cell processing equipment; 200-a tab welding device; 210-tool reflow line; 211-reflow jig; 2111-tool body; 2112-roller; 2113-cell placement site; 2114-first platen; 2115-second platen; 2116-connecting plate; 2117-baffle; 2118-clip open; 212-reflow station; 2121-processing position; 213-pressing anti-shake mechanism; 2131-a drive mechanism; 2132-a linkage shaft; 2133-micro-motion bearings; 220-a welding section; 221-a first tab welding station; 2211-tab cutting mechanism; 2212-ultrasonic tab welding mechanism; 2213-printing, flattening and cutting mechanism; 2214-first welding station; 2215-second welding station; 222-a second lug welding station; 223-a position switching mechanism; 2231-a first single axis robot; 2232-an electric machine; 2233-an executive end; 2234-motor lifting mechanism; 224-a dust removal mechanism; 230-rubberizing section; 231-tab rubberizing station; 2311-a glue supply mechanism; 2312-a second single-axis manipulator; 2313 sticking a glue head; 2314-rubberizing a CCD vision inspection mechanism; 2315-lifting driving cylinder; 2316-placing the protective rubber segments; 2317-tab Hipot detection station; 2318-a compact; 2319-detecting head; 232-peripheral wall encapsulation station; 2321-a rubber coating mechanism; 2322-winding glue detecting mechanism; 2323-cell positioning mechanism; 2324-a pressing mechanism; 2325-third single-axis robot; 2326-CCD camera; 2327 — first light source; 2328 — a second light source; 2329-winding glue detecting rack; 300-a cell encasing device; 310-case entering turntable; 311-a bottom case jig; 320-bottom shell loading manipulator; 330-battery core feeding manipulator; 331-an adsorption mechanism; 332-a shaping mechanism; 333-support piece driving mechanism; 334-bracing pieces; 335-supporting piece lifting driving mechanism; 336-a base; 340-a laser welding mechanism; 350-a lower gasket feeding mechanism; 351-a feed tray; 352-a winding disc; 353, a suction pad mechanism; 354-a winding driving mechanism; 355-a fourth single-axis robot; 356-rotating the adjustment motor; 357-suction pad positions; 360-a gasket feeding mechanism; 370-bottom shell loading station; 371-full tray position; 372-a transfer mechanism; 373-a take-up mechanism; 374-a lifting table; 375 — discharge drive mechanism; 380-feeding bending mechanical arm; 400-shell cover laser welding device; 410-shell cover welding station; 420-electric core shifting manipulator; 430-shell cover feeding deviation rectifying mechanism; 431-a shell cover pre-positioning mechanism; 432-a material taking deviation rectifying mechanism; 433-a CCD visual detection station of the shell cover; 450-a bottom case coordinate acquisition mechanism; 500-finished product inspection device; 510-a battery loading mechanism; 520-finished product CCD visual detection mechanism; 530-finished product Hipot detection mechanism; 540-battery blanking mechanism; 600-electric core; 610-a cell body; 611-upper surface; 612-lower surface; 613-peripheral wall; 614-lower edge; 620-a first tab; 630-a second tab.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Referring to fig. 1, an automatic battery cell processing apparatus 100 according to an embodiment of the present disclosure includes a tab welding device 200, a battery cell casing device 300, and a casing cover laser welding device 400. The tab welding device 200 is used for welding the multi-layer tabs with the same polarity of the battery cell 600 into a whole; the battery cell casing device 300 is butted with the lug welding device 200 and is used for feeding the battery cell into the bottom casing and welding the lug of the battery cell and the bottom casing into a whole; the shell cover laser welding device 400 is butted with the battery cell entering shell device 300 and used for welding the shell cover and the bottom shell into a whole.

Referring to fig. 16, in the description of the present application, the automatic cell processing apparatus 100 is used for mass production of a laminated irregular cylindrical battery including a cell 600, a bottom case, and a case cover. The shape of the battery cell 600 is irregular, and the battery cell 600 includes a battery cell body 610, a first tab 620, and a second tab 630. For convenience of description, the cell body 610 includes an upper surface 611, a lower surface 612, a peripheral wall 613, and a lower edge 614. The first tab 620 and the second tab 630 protrude from the lower edge 614 substantially perpendicularly outward from the peripheral wall 613 of the cell body 610 based on the lower edge 614, and are disposed on opposite sides of the peripheral wall 613.

The conventional automatic battery cell processing equipment mainly processes regular winding type cylindrical batteries, and the batteries mentioned in the embodiment of the application cannot be produced in batches. Compared with the existing automatic battery cell processing equipment, the automatic battery cell processing equipment 100 in the embodiment of the application can realize the automatic production of irregular battery cells, and improves the production efficiency.

The following structures and mutual butt-joint relations of the devices in the automatic battery cell processing equipment 100 according to the embodiment of the present application.

Referring to fig. 2, the tab welding device 200 is used for welding multi-layer tabs of the battery cell 600 with the same polarity into a whole.

In some embodiments of the present application, the tab welding device 200 includes a jig reflow line 210, a welding section 220, and a rubberizing section 230.

The following sets forth one exemplary form of the configuration of tool reflow line 210.

Referring to fig. 4, the tool reflow line 210 includes a reflow stage 212 and a pressing anti-shake mechanism 213. The reflow table 212 is provided with a reflow jig 211 moving synchronously along the moving path of the reflow table, and the reflow jig 211 is used for carrying the battery cell 600.

The reflow table 212 includes a frame, a driving turntable, a driven turntable, and a timing belt, and the driving turntable and the driven turntable are mounted on the frame, and support and drive the timing belt to advance together. The quantity of backward flow tool 211 has a plurality ofly, and a plurality of backward flow tools 211 interval arrangement are in the hold-in range, and under the drive of hold-in range, a plurality of backward flow tools 211 synchronous reflux advance.

Every backward flow tool 211 can carry two electric cores 600, and two electric cores 600 are the same angle and place in backward flow tool 211.

Referring to fig. 5, as an exemplary form, the reflow jig 211 includes a jig body 2111, a roller 2112, a first pressing plate 2114, a second pressing plate 2115, a connecting plate 2116, and a baffle 2117. Tool body 2111 is last to be equipped with two electric cores and to place position 2113, and every electric core is placed position 2113 and is corresponded an electric core 600, and electric core 600 is put upside down and is placed position 2113 in electric core, makes first utmost point ear 620 and second utmost point ear 630 be located the upside, and one of them utmost point ear is outside. The first pressing plate 2114 is slidably mounted on the jig body 2111, and the lower side of the first pressing plate 2114 corresponds to the cell placement position 2113 and is used for pressing the cell 600. The second pressing plate 2115 can press the first pressing plate 2114, so as to ensure that the jig body 2111 can press the battery cell 600 into the battery cell placement position 2113 during the advancing process of the first pressing plate 2114. The baffle 2117 is used to locate the outer end of the peripheral wall 613 of the cell 600. The roller 2112 is used for being matched with a sliding rail on the reflow table 212, the connecting plate 2116 is used for being connected with a synchronous belt of the reflow table 212, and the reflow jig 211 can move along the moving track of the reflow table 212 under the driving of the synchronous belt so as to transfer the battery cell 600.

Referring to fig. 4, the reflow table 212 is provided with a plurality of processing positions 2121 (the position of each reflow tool 211 in fig. 4 is a processing position 2121). When the reflow jig 211 is stopped at the processing position 2121, the pressing anti-shaking mechanism 213 is configured to press the reflow jig 211 located at the processing position 2121 onto the reflow table 212, so as to prevent the reflow jig 211 from shaking, and facilitate accurate positioning of an external mechanism, so as to facilitate processing of the electrical core 600 in the reflow jig 211.

In some embodiments of the present application, the plurality of processing sites 2121 are arranged in a row, and the compression anti-shake mechanism 213 includes a drive mechanism 2131 and a linkage shaft 2132. The driving mechanism 2131 is a cylinder, is mounted on the frame, and drives the linkage shaft 2132 to rotate through a link mechanism. Each processing position 2121 is provided with a micro-motion bearing 2133, and the micro-motion bearings 2133 of a plurality of processing positions 2121 are all connected with a linkage shaft 2132. Under the action of the driving mechanism 2131, when the linkage shaft 2132 rotates, the micro bearing 2133 can be pushed tightly at the same time, and the corresponding reflow jig 211 is pressed on the reflow table 212 through the micro bearing 2133.

It is easy to understand that, with this arrangement, the reflow jig 211 of the plurality of processing stations 2121 can be pressed simultaneously by using one driving mechanism 2131, which is simple and efficient.

Similarly, the plurality of processing positions 2121 on the other side of the reflow table 212 are also arranged in a row, and the plurality of reflow jigs 211 stopped at the row of processing positions 2121 are also pressed against the reflow table 212 by the pressing anti-shake mechanism 213.

Further, some of the processing stations 2121 are clamping-opening positions, and clamping-opening mechanisms (not shown) are correspondingly disposed on the clamping-opening positions. When the reflow jig 211 is stopped at the clip opening position, the clip opening mechanism acts on the clip opening portion 2118 of the reflow jig 211 to open the cell placing position 2113, so as to put in or take out the cell 600.

Optionally, a vacuum air passage is provided in the battery cell placement site 2113, and the battery cell 600 is adsorbed in the pit site.

In the description of the present application, the battery cell 600 before being processed by the tab welding apparatus 200 will be referred to as a bare cell. A plurality of naked electric cores are cached in the cartridge clip, and through outside manipulator with two naked electric core material loadings to a backward flow tool 211 in, make electric core 600 invert (lower surface 612 up promptly), first utmost point ear 620 is outwards.

Referring to fig. 2, the soldering section 220 is disposed adjacent to the tool reflow line 210, and is used for soldering the first tab 620 and the second tab 630 of the battery cell 600 in the reflow tool 211 in sequence.

The following sets forth one exemplary form of the configuration of the welding segment 220.

The welding section 220 includes a first tab welding station 221, a second tab welding station 222, and a position switching mechanism 223.

The first tab welding station 221 and the second tab welding station 222 have the same structure, the first tab welding station 221 and the second tab welding station 222 respectively correspond to one tab of the battery cell 600, and the two tab welding stations are respectively used for welding the first tab 620 and the second tab 630 of the battery cell 600 first and second.

Taking the first tab welding station 221 as an example, the first tab welding station 221 includes a tab cutting mechanism 2211, a tab ultrasonic welding mechanism 2212 and a printing and leveling cutting mechanism 2213. The tab cutting mechanism 2211 is configured to collect and cut orderly multiple layers of tabs (i.e., the first tabs 620) with the same polarity of the battery cell 600; the TAB ultrasonic welding mechanism 2212 is used for welding a plurality of layers of TABs with the same polarity and a TAB material into a whole; the solder print flattening and cutting mechanism 2213 is used for flattening the welded first tab 620.

Specifically, since each reflow jig 211 can carry two battery cells 600, the number of the tab ultrasonic welding mechanisms 2212 in the embodiment of the present application is two, which are the first welding station 2214 and the second welding station 2215. The first soldering station 2214 and the second soldering station 2215 are respectively used for processing two battery cells 600 carried in the same reflow jig 211.

Likewise, the second tab welding station 222 is used to process the second tab 630 of the cell 600.

The tab cutting mechanism 2211, the two welding stations in the tab ultrasonic welding mechanism 2212 and the welding, printing, leveling and cutting mechanism 2213 are mature prior art, and are not further described herein.

Referring to fig. 2, a position switching mechanism 223 is disposed between the first tab welding station 221 and the second tab welding station 222 for rotating the battery cell 600 to make the unprocessed tab (i.e., the second tab 630) face outward.

As will be readily understood, when one reflow jig 211 passes through the first tab welding station 221, the first tabs 620 of the two cells 600 carried therein face outward. The position switching mechanism 223 can suck out the two battery cells 600, rotate 180 degrees and then place the battery cells back into the reflow jig 211, so that the second pole ear 630 faces outwards, thereby facilitating the processing.

The following exemplifies a configuration of the position switching mechanism 223.

Referring to fig. 6, the position switching mechanism 223 includes a first single-axis robot 2231, a motor 2232, an actuating end 2233, and a motor elevating mechanism 2234. The first single-axis robot 2231 is mounted to the frame and can drive the motor lift mechanism 2234 toward or away from the reflow table 212. A motor 2232 is installed at the output end of the motor lifting mechanism 2234, and the motor lifting mechanism 2234 can drive the motor 2232 to move up and down to be close to or far away from the battery cell placement position 2113. The output end of the motor 2232 is an execution end 2233, which is used for sucking the battery cell 600. The position switching mechanism 223 can suck up the battery cell 600, horizontally rotate 180 °, and then place the battery cell 600 back to the battery cell placement position 2113, so that the second pole ear 630 faces outward.

In some embodiments of the present application, the reflow jig 211 is provided with two cell placing positions 2113. Correspondingly, two position switching mechanisms 223 are also arranged, and the two position switching mechanisms 223 share one first single-axis robot 2231.

Referring to fig. 2, the rubberizing section 230 is abutted to the welding section 220, and is configured to rubberize the welding-printed surface of the tab and the peripheral wall 613 of the battery cell 600, and output a battery cell with qualified rubberizing.

The following sets forth one exemplary form of construction of the rubberized sections 230.

The taping section 230 includes a tab taping station 231 and a peripheral wall taping station 232.

And the tab rubberizing station 231 is used for rubberizing a protective adhesive on a welding and printing surface of the tab, and outputting a battery cell with qualified rubberizing after the rubberizing quality detection.

Referring to fig. 7, in some embodiments of the present disclosure, the tab pasting station 231 includes a glue supplying mechanism 2311, a second single-axis robot 2312, a pasting head 2313, a pasting CCD vision detecting mechanism 2314, and a lifting driving cylinder 2315.

Particularly, supply gluey mechanism 2311 to be used for forming the protection with the protection of lapping through doubling, drawing glue, surely glue and glue the festival section, be equipped with two protection on the rubberizing tray and glue the festival section and place position 2316, the slip table cylinder can drive the rubberizing tray and remove to place position 2316 with two protection and connect respectively and get a protection and glue the festival section. The second single-shaft manipulator 2312 drives the lifting driving cylinder 2315 to move back and forth, and the lifting driving cylinder 2315 further drives the rubberizing head 2313 to lift so as to suck the two sections of protective rubber sections on the rubberizing tray and transfer the two sections of protective rubber sections to the welding and printing surfaces of the lugs of the two battery cells 600 (namely, the lower sides of the lugs). The rubberizing CCD vision detection mechanism 2314 is used for detecting whether the rubberizing profile has a deviation, determining whether the quality of the rubberizing profile is qualified or unqualified, and outputting the electric core 600 with the qualified rubberizing profile.

It should be noted that the tab rubberizing station 231 further includes a hot pressing mechanism and a turning table.

When the reflow jig 211 stops at the opening position, after the reflow jig 211 opens the clamp, the battery cell 600 in the inverted state (i.e. two tabs on the upper side) is taken out and transferred to the overturning platform, the hot-pressing mechanism hot-presses the tabs, and then the adhesive bonding head 2313 attaches the protective adhesive segments to the printing surfaces of the tabs. After the adhesive tape is pasted, the overturning platform drives the battery cell 600 to overturn 180 degrees, so that the battery cell 600 is arranged right (i.e. two tabs are arranged at the lower side). The cell 600 in the upright state is transferred to a tab Hipot test station 2317 described below by a manipulator to perform a withstand voltage test.

Referring to fig. 8, the tab pasting station 231 further includes a tab Hipot detection station 2317. The tab Hipot detection table 2317 is located behind the rubberized CCD vision detection mechanism 2314 and includes two detection positions, each detection position corresponding to one cell. Each test station includes a console (not shown), a hold down block 2318, and two test heads 2319. An external manipulator puts the battery cell 600 on the operation table, and the pressing block 2318 presses the upper surface 611 of the battery cell 600, so that the first tab 620 and the second tab 630 are respectively in contact with the operation table. The two detection heads 2319 are respectively abutted downwards against the two tabs to perform a Hipot test. The tab Hipot detection table 2317 is used for detecting whether two tabs of the battery cell 600 meet insulation requirements, judging whether tab insulation performance is qualified or unqualified, and outputting the battery cell 600 with the qualified tab insulation performance.

In the description of the present application, the CCD vision inspection refers to taking a picture of an object to be measured using an industrial camera, converting an optical signal into an ordered electrical signal, and sending the electrical signal to an external controller, which outputs a feedback signal through a comparative analysis. The Hipot test refers to a voltage withstanding test, namely, a leakage current generated by an object to be tested under a test high voltage is compared with a preset current so as to judge whether the insulation performance of the object to be tested is qualified. This part is the mature prior art and will not be further described in the embodiments of the present application.

Referring to fig. 2, the peripheral wall encapsulation station 232 is abutted to the tab rubberizing station 231, and is configured to wrap the adhesive around the peripheral wall 613 of the battery cell 600, and output a battery cell qualified in encapsulation after performing encapsulation quality detection.

Referring to fig. 2, the peripheral wall encapsulating station 232 includes an encapsulating mechanism 2321 and a winding detecting mechanism 2322.

Referring to fig. 9, the encapsulation mechanism 2321 is used for wrapping the adhesive paper around the peripheral wall 613 of the battery cell 600.

In some embodiments of the present application, the encapsulation mechanism 2321 includes a cell positioning mechanism 2323 and a pressing mechanism 2324. The top surface of the electric core positioning mechanism 2323 is configured to adsorb the electric core 600, the pressing mechanism 2324 elastically presses down on the upper surface 611 of the electric core 600, the pressing mechanism 2324 can clamp the electric core 600 together with the electric core positioning mechanism 2323 at the upper and lower ends of the electric core 600, and synchronously drive the electric core 600 to rotate, so that the electric core 600 rotates while wrapping the cellophane around the peripheral wall 613.

On the one hand, because electric core positioning mechanism 2323 and pushing down mechanism 2324 all are equipped with the rotation motor, the two can the synchronous drive electric core 600 rotate, and rubber coating mechanism 2321 makes electric core 600 rotate in-process internal stress even, can enough realize the rubber coating, can guarantee the quality of electric core 600 again. On the other hand, the pressing mechanism 2324 drives the pressing rod to rotate through the rotating shaft, the pressing rod is arranged inside the rotating shaft and is connected with the rotating shaft through splines, and a pressure spring is arranged between the pressing rod and the rotating shaft. Through this kind of arrangement form, the lower extreme elasticity of depression bar pushes down in electric core 600, avoids crushing electric core.

And the winding detection mechanism 2322 is used for detecting whether the rubber coating process is qualified.

Referring to fig. 10, the winding inspection mechanism 2322 includes a third single-axis robot 2325, a CCD camera 2326 and a winding inspection frame 2329. The glue winding detection mechanism 2322 is in butt joint with the glue winding mechanism 2321, the battery cell 600 is loaded to the glue winding detection frame 2329 from the glue winding mechanism 2321, the third single-shaft manipulator 2325 pushes the glue winding mechanism 2321 to a proper position, and the first light source 2327 and the second light source 2328 are combined, so that the CCD camera 2326 has a good photographing effect. In the process of driving the battery cell to rotate by the winding glue detection frame 2329, the CCD camera 2326 detects whether the bottom edge of the adhesive paper is wrapped along the lower edge 614 of the battery cell 600, so as to determine whether the encapsulation process is qualified.

Further, the welding section 220 further includes a dust removing mechanism 224 and a tab bending mechanism.

Referring to fig. 2, the dust removing mechanism 224 is disposed behind the position switching mechanism 223 for cleaning the surface of the second tab 630 to facilitate welding at the second tab welding station 222.

The tab bending mechanism is arranged behind the rubberizing section 230 and is used for bending and molding the first tab 620 and the second tab 630 of the battery cell 600 qualified in encapsulation. After the tabs are bent, the first tab 620 and the second tab 630 are bent upward by approximately 90 ° based on the lower edge 614, abut against the peripheral wall 613, and have a slight gap from the peripheral wall 613.

As an example, the tab bending mechanism is disposed on the below-described case entering turntable 310, and includes a plurality of tab bending stations, and the tab bending stations correspond to the case bottom jigs 311 one by one.

The welding section 220 comprises a bending conveying manipulator 380, the bending conveying manipulator 380 is connected with a winding glue detection mechanism 2322 in a butt joint mode, and the bending conveying manipulator 380 conveys the battery cell 600 qualified in rubber coating to a pole lug bending station to form the battery cell 600 after the pole lug is bent. The battery cell 600 with the bent tab is transferred to a loading position of the battery cell loading manipulator 330 through the linear transfer mechanism to be butted with the battery cell loading manipulator 330.

Referring to fig. 1, the cell casing entering device 300 is butted with the tab welding device 200, and is used for feeding the cell 600 into the bottom casing and welding the tab of the cell 600 and the bottom casing into a whole.

The following illustrates the construction of an example form of the cell encasing device 300.

Referring to fig. 3, the cell casing device 300 includes a casing turntable 310, a bottom casing loading manipulator 320, a cell loading manipulator 330, and a laser welding mechanism 340.

Go into shell carousel 310 and go up along its circumference and be equipped with a plurality of drain pan tools 311 of synchronous rotation, every drain pan tool 311 all corresponds a battery.

The bottom casing feeding manipulator 320 is used for feeding the bottom casing to the bottom casing fixture 311, and the bottom casing fixture 311 clamps the bottom casing.

Optionally, the battery cell casing device 300 further includes a bottom casing loading station 370, configured to transfer the batch of bottom casings to a loading position of the bottom casing loading manipulator 320.

Referring to fig. 11, as an exemplary form, the bottom loading station 370 includes a full tray position 371, a transfer mechanism 372, an accepting mechanism 373, a lifting table 374, and an outfeed drive mechanism 375. Under the action of the external manipulator, the tray fully loaded with the bottom shell is sent to the full tray position 371, and the bottom shell feeding manipulator 320 takes the bottom shell from the full tray position 371 and feeds the bottom shell onto the bottom shell jig 311. When there is no bottom case in the tray, the transfer mechanism 372 sucks the empty tray and places it on the receiving mechanism 373. The lift table 374 is located below the receiving mechanism 373, and the lift table 374 is raised close to the empty tray, and the receiving mechanism 373 releases the empty tray and drops the empty tray onto the lift table 374. The elevator 374 lowers and places the empty tray on the outfeed line, which is transported outside of the bottom shell loading station 370 by the outfeed drive mechanism 375.

The battery cell feeding manipulator 330 is butted against the tab welding device 200.

Specifically, the battery cell feeding manipulator 330 is located in the case rotating disc 310, and feeds the battery cell 600 sent out from the tab bending station to the bottom case clamped on the bottom case jig 311, and struts tabs on two sides of the battery cell 600, so that the tabs are in contact with the inner wall of the bottom case.

Referring to fig. 12 and 17, the battery cell loading manipulator 330 includes a base 336, a supporting sheet lifting/lowering driving mechanism 335, an adsorbing mechanism 331, and two shaping mechanisms 332, where the base 336 is configured to be mounted on a rack or a previous stage transfer mechanism. The supporting sheet lifting driving mechanism 335 is used for driving the middle connecting piece to lift, the two shaping mechanisms 332 are symmetrically arranged on the middle connecting piece, and the adsorption mechanism 331 is also arranged on the middle connecting piece. Each of the shaping mechanisms 332 includes a supporting piece driving mechanism 333 and a supporting piece 334, and the suction mechanism 331 is located between the two supporting pieces. The two clamping pieces are respectively inserted into the gaps between the two tabs of the battery cell 600 and the battery cell body 610, and the battery cell 600 is picked up under the adsorption of the adsorption mechanism 331. As can be easily understood, the support piece 334 of the reshaping mechanism 332 is inserted into the gap between the tab and the peripheral wall 613 of the cell body 610 to support the tab of the cell 600, so that the tab is away from the cell body 610 to contact with the inner sidewall of the bottom casing. Through this kind of arrangement, plastic mechanism 332 can strut the utmost point ear of electricity core 600 to make the utmost point ear and the inner wall contact of drain pan, in order to do benefit to the welding process of drain pan and utmost point ear.

Referring to fig. 3, optionally, the battery cell casing device 300 further includes a lower gasket feeding mechanism 350 and an upper gasket feeding mechanism 360. When the bottom case is clamped by one of the bottom case jigs 311, the lower gasket feeding mechanism 350 is configured to feed the lower gasket into the inside of the bottom case before the cell 600 is fed into the bottom case, and the lower gasket feeding mechanism 350 is configured to feed the upper gasket into the inside of the bottom case after the cell is fed into the bottom case.

In some embodiments of the present application, the lower gasket and the upper gasket are both PP gaskets, and the lower gasket feeding mechanism 350 and the upper gasket feeding mechanism 360 are the same.

Referring to fig. 13, the lower pad loading mechanism 350 is exemplified by a lower pad loading mechanism 350, and the lower pad loading mechanism 350 includes a supply tray 351, a take-up tray 352, a suction pad mechanism 353, a take-up driving mechanism 354, a fourth single-axis robot 355, and a rotation adjusting motor 356. The supply reel 351 is wound with a full strip of shims and the take-up reel 352 is used to wind an empty strip of shims. Under the action of the winding driving mechanism 354, the full strip of gasket is pushed down by the suction pad 357. Under the drive of fourth unipolar manipulator 355, combine horizontal linear guide and lift cylinder, inhale that pad mechanism 353 can the triaxial removes to move two sucking discs in proper order to inhale pad position 357, with remove two gaskets simultaneously, and send into two gaskets on the drain pan tool 311 among the drain pan of centre gripping. Wherein rotation of the adjustment motor 356 allows adjustment of the angle of the suction cup to match the gasket to the contour of the bottom shell.

Referring to fig. 1, a housing cover laser welding device 400 is coupled to a cell-in-housing device 300 for welding a housing cover and a housing cover into a whole.

The following sets forth a configuration of a laser welding apparatus 400 for a case cover in an exemplary form.

Referring to fig. 3, the case cover laser welding apparatus 400 includes a case cover welding station 410, a cell transferring robot 420, and a case cover feeding deviation correcting mechanism 430. The shell cover welding station 410 is used for welding the shell cover welded with the battery core into a whole. The shell cover welding station 410 uses laser welding to weld the shell cover and the bottom shell into a whole; the battery cell transferring manipulator 420 is used for conveying the shell welded with the battery cell to the shell cover welding station 410; the shell cover feeding deviation correcting mechanism 430 is used for adjusting the position of the shell cover according to the shell body welded with the battery cell, and then sending the shell cover to the shell cover welding station 410, so that the shell cover corresponds to the position of the shell body welded with the battery cell.

The case cover laser welding apparatus 400 can weld the case cover and the bottom case of the two sets of batteries at the same time.

Referring to fig. 14, in some embodiments of the present disclosure, the case cover loading deviation correcting mechanism 430 includes a case cover loading manipulator (not shown), a case cover pre-positioning mechanism 431, a material taking deviation correcting mechanism 432, a case cover CCD vision detecting station 433, and a case coordinate acquiring station (not shown). The shell cover feeding manipulator feeds two shell covers to the shell cover pre-positioning mechanism 431, the shell cover pre-positioning mechanism 431 pre-positions the two shell covers, and the taking and deviation rectifying mechanism 432 transfers the two shell covers to the shell cover CCD visual detection station 433 from the shell cover pre-positioning mechanism 431 so as to obtain the mutual positions of the two shell covers. The bottom case coordinate acquiring mechanism 450 is configured to acquire relative positions of the two bottom cases, and the material taking and deviation correcting mechanism 432 can adjust positions in two directions perpendicular to each other, and adjust relative positions of the two case covers according to the relative positions of the two bottom cases, so that the relative positions of the two case covers are consistent with the relative positions of the two bottom cases.

It is easy to understand that the cell transferring manipulator 420 maintains the relative positions of the two bottom shells and sends the two bottom shells to the shell cover welding station 410, and the shell cover feeding manipulator also maintains the relative positions of the two shell covers and sends the two shell covers to the shell cover welding station 410, so as to perform the welding operation between the shell cover and the bottom shells.

Referring to fig. 3, the automatic battery cell processing apparatus 100 further includes a finished product detecting device 500, where the finished product detecting device 500 is in butt joint with the case cover laser welding device 400, and is configured to detect the battery output by the case cover laser welding device 400 and output a qualified battery.

The following sets forth an exemplary finished product inspection device 500 arrangement.

The finished product inspection device 500 includes a battery feeding mechanism 510, a finished product CCD vision inspection mechanism 520, a finished product Hipot inspection mechanism 530, and a battery blanking mechanism 540.

The battery feeding mechanism 510 is abutted to the cover laser welding device 400, and is used for transferring the battery output by the cover laser welding device 400 to the finished product CCD vision detection mechanism 520.

The finished product CCD vision inspection mechanism 520 is used to inspect the outline of the battery, determine whether the battery output from the case cover laser welding apparatus 400 is good or defective, place the defective into the NG box, and transfer the good to the finished product Hipot inspection mechanism 530 by an external manipulator.

The finished product Hipot detection mechanism 530 is used for further performing an insulation resistance test on the good product, further judging that the good product is a qualified battery or an unqualified battery, putting the unqualified battery into an NG box, and outputting the qualified battery to the next link.

The working principle of the automatic battery cell processing equipment 100 of the present embodiment is described below.

Referring to fig. 1, fig. 2, fig. 3, and fig. 15, a battery cell 600 is loaded into a reflow jig 211;

the reflow jig 211 is stopped at the processing position 2121, and the pressing anti-shake mechanism 213 positions the reflow jig 211;

the first tab welding station 221 performs welding of first tabs 620 of two battery cells 600;

the position switching mechanism 223 rotates the two battery cells 600, so that the second tabs 630 of the two battery cells 600 face outwards;

the dust removing mechanism 224 cleans the second tabs 630 of the two battery cells 600;

the reflow jig 211 is stopped at another processing position 2121, and the pressing anti-shake mechanism 213 positions the reflow jig 211;

the second tab welding station 222 performs welding of second tabs 630 of two battery cells 600;

the reflow jig 211 is stopped at the clamping opening position, the clamping opening mechanism opens the reflow jig 211, the two battery cells 600 are taken out and transferred to the tab rubberizing station 231 for hot pressing, tab rubberizing is carried out, and the battery cells are transferred to the tab Hipot detection table 2317 for Hipot detection after being turned over;

the two cells 600 are transferred to a peripheral wall encapsulation station 232 for peripheral wall encapsulation;

the two battery cells 600 are sent to a glue winding detection mechanism 2322, and the glue winding detection mechanism 2322 performs CCD visual detection on the battery cells 600;

the bending manipulator 380 is sent to the tab bending station to bend the tabs of the two battery cells 600, so as to form finished battery cells;

the bottom shell feeding manipulator 320 feeds the bottom shell to the bottom shell jig 311;

the lower gasket feeding mechanism 350 feeds the lower gasket into the inside of the bottom case;

the battery cell feeding manipulator 330 feeds the finished battery cells to the inside of the bottom shell from the tab bending station;

the shell entering turntable 310 rotates to a welding position, and the lug of the battery cell and the bottom shell are welded into a whole by the laser welding mechanism 340;

the upper gasket feeding mechanism 360 feeds the upper gasket into the bottom case to form a semi-finished battery;

the shell cover and the semi-finished product battery are both sent to a shell cover welding station 410, and the shell cover are welded into a whole through a welding head to form a battery;

the battery feeding mechanism 510 sends the battery to the finished product CCD visual detection mechanism 520, and the qualified product is output after detection;

the good products are transferred to a finished product Hipot detection mechanism 530, and qualified batteries are output after detection;

the battery discharging mechanism 540 sends the qualified battery to the next link.

Compared with the existing automatic battery cell processing equipment, the automatic battery cell processing equipment 100 in the embodiment of the application can realize the automatic production of irregular battery cells, and improves the production efficiency.

It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. The utility model provides a battery cell automatic processing equipment which characterized in that includes:

the lug welding device is used for welding the multi-layer lugs with the same polarity of the battery cell into a whole;

the battery cell in-shell device is butted with the lug welding device and is used for sending the battery cell into the bottom shell and welding the lug of the battery cell and the bottom shell into a whole;

and the shell cover laser welding device is in butt joint with the battery cell entering shell device and is used for welding the shell cover and the shell into a whole.

2. The automatic battery cell processing equipment of claim 1, wherein the tab welding device comprises:

the jig return line is provided with a return jig which moves synchronously along the advancing path of the jig return line;

the welding section is arranged close to the jig backflow line and used for sequentially welding lugs on two sides of the battery cell in the backflow jig;

and the rubberizing section is butted with the welding section and is used for rubberizing the welding and printing surface of the lug and the peripheral wall of the battery cell and outputting the battery cell qualified in rubberizing.

3. The automatic battery cell processing device of claim 2, wherein the jig return line further comprises:

the backflow table is used for driving the backflow jig to move, and a plurality of processing stations are arranged on the backflow table;

and the pressing anti-shaking mechanism is used for pressing the backflow jig positioned on the processing position on the backflow table.

4. The automatic battery cell processing device according to claim 3, wherein the plurality of processing stations are arranged in a row, the pressing and anti-shaking mechanism includes a driving mechanism and a linkage shaft, and the driving mechanism can drive the linkage shaft to rotate so as to push the plurality of backflow jigs located in the processing stations in the row to be synchronously pressed on the backflow table through the linkage shaft.

5. The automatic battery cell processing device of claim 2, wherein the rubberizing sections comprise:

the tab rubberizing station is used for rubberizing a protective adhesive on a welding and printing surface of a tab, and outputting a battery cell with qualified rubberizing after rubberizing quality detection;

and the peripheral wall encapsulation station is butted with the lug encapsulation station and is used for wrapping the peripheral wall of the battery cell with the adhesive and outputting the battery cell qualified in encapsulation after encapsulation quality detection.

6. The automatic battery cell processing apparatus according to claim 2, wherein the welding section includes two tab welding stations and a position switching mechanism, each tab welding station corresponds to a tab on one side of the battery cell, and the position switching mechanism is disposed between the two tab welding stations and is configured to rotate the battery cell so that an unprocessed tab faces outward.

7. The automatic battery cell processing apparatus of claim 1, wherein the battery cell encasing device comprises:

the shell entering rotary table is provided with a plurality of bottom shell jigs which rotate synchronously along the circumferential direction;

the bottom shell feeding manipulator is used for feeding the bottom shell to the bottom shell jig;

the battery cell feeding manipulator is butted with the lug welding device and is used for feeding the battery cell into a bottom shell on the bottom shell jig and opening lugs on two sides of the battery cell so as to enable the lugs to be in contact with the inner wall of the bottom shell;

and the laser welding mechanism is used for welding the lug of the battery cell and the bottom shell into a whole.

8. The automatic battery cell processing apparatus of claim 7, wherein the battery cell encasing device further comprises:

the lower gasket feeding mechanism is used for feeding the lower gasket into the bottom shell before the battery cell is fed into the bottom shell;

and the lower gasket feeding mechanism is used for feeding the upper gasket into the bottom shell after the battery cell is fed into the bottom shell.

9. The automatic battery cell processing equipment of claim 1, wherein the shell cover laser welding device comprises:

the shell cover welding station is used for welding the shell body welded with the battery cell and the shell cover into a whole;

the battery cell transferring manipulator is used for conveying the shell welded with the battery cell to a shell cover welding station;

and the shell cover feeding deviation rectifying mechanism is used for adjusting the position of the shell cover according to the shell body welded with the battery cell and then conveying the shell cover to the shell cover welding station so that the shell cover corresponds to the position of the shell body welded with the battery cell.

10. The automatic battery cell processing apparatus of claim 1, further comprising a finished product detection device, wherein the finished product detection device is in butt joint with the housing cover laser welding device, and the finished product detection device comprises:

the finished product CCD visual detection mechanism is used for selecting good products output by the shell cover laser welding device;

and the finished product Hipot detection mechanism is used for performing insulation resistance test on the good products and outputting qualified batteries.