CN115241538A

CN115241538A - Automatic stacking device for two-in-one battery cell

Info

Publication number: CN115241538A
Application number: CN202210925644.6A
Authority: CN
Inventors: 曹中成; 方泽文; 黄星; 杨晓恒; 陈文骏
Original assignee: SAIC CATL Power Battery System Co Ltd
Current assignee: SAIC CATL Power Battery System Co Ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-10-25

Abstract

The invention relates to the technical field of lithium battery module production, in particular to a two-in-one automatic battery cell stacking device, which comprises a wire body assembly, a battery cell carrying assembly and a base assembly, wherein the wire body assembly is used for loading a lower-layer battery cell and an upper-layer battery cell; and the protection assembly is arranged above the wire body assembly, is connected with the base assembly and is positioned outside the battery cell carrying assembly. The automatic stacking device for the two-in-one battery cells can automatically realize the stacking and splicing work of the two-in-one battery cells, reduces the labor cost, has high working efficiency and high splicing and positioning precision among the battery cells, can simultaneously complete the stacking and splicing of a plurality of groups of battery cells, and can effectively solve the technical problems that only single-row battery cells can be stacked, the production efficiency is low, the labor intensity is high, the splicing precision of the battery cells is low and the like in the traditional battery cell stacking process.

Description

Automatic stacking device for two-in-one battery cell

Technical Field

The invention relates to the technical field of lithium battery module production, in particular to a two-in-one battery cell automatic stacking device.

Background

With the continuous development of new energy technology, new energy batteries are more and more widely used, for example, as power batteries of new energy automobiles. In the production technology of battery package, need pile up into with a plurality of electric cores earlier, paste the diaphragm again on the terminal surface of electric core and encapsulate, form the battery module, arrange a plurality of battery modules according to predetermined mode at last and connect formation battery package.

Traditional electric core piles up the working method that adopts the manual work to pile up, and work efficiency is low, need consume a large amount of manpowers to electric core places and appears the error easily, is difficult to realize that the four sides of electric core align, can't guarantee the uniformity of electric core position, and then leads to follow-up course of working to appear skewing easily, has improved manufacturing cost.

The automatic electric core of present module line piles up technology is accomplishing the electric core and piles up the back, and unified again is regular to piling up good electric core to make the edge of each electric core align, big face contact in proper order with every electric core promptly, directly pile up into the module, then through manual module amalgamation equipment, rely on the manual work to carry out two unifications with electric core and counterpoint, amalgamate. But because electric core surface scribbles the colloid, each electric core has glued together in the process of piling up, so be difficult to realize accurate counterpoint, the amalgamation to electric core, the defective products are higher to it is big through artifical amalgamation intensity of labour, work efficiency is low. In addition, the existing battery cell stacking process is only suitable for stacking traditional single-row battery cells in sequence to form a group, a module is formed by stacking multiple rows of battery cells, and the process of gluing the large faces of the adjacent battery cells is not suitable.

Disclosure of Invention

Aiming at the defects in the prior art, the automatic stacking device for the two-in-one battery cell can quickly realize the stacking and splicing work of the upper and lower layers of battery cells, and can effectively solve the technical problems of low production efficiency, high manual labor intensity, low battery cell splicing precision and the like in the stacking process of the traditional battery cell.

In order to achieve the above technical object, the present invention provides a two-in-one battery cell automatic stacking apparatus, including:

the wire body assembly comprises a lower-layer battery cell conveying line and an upper-layer battery cell conveying line which are parallel to each other, at least one group of first trays are connected to the lower-layer battery cell conveying line in a sliding mode and used for loading a lower-layer battery cell, and at least one group of second trays are connected to the upper-layer battery cell conveying line in a sliding mode and used for loading an upper-layer battery cell;

the battery cell carrying assembly comprises a support frame, a cross beam assembly stretching over the support frame and moving with the support frame, and at least one group of clamping jaw assemblies hung below the cross beam assembly, and is used for grabbing an upper layer of battery cells and carrying the upper layer of battery cells to the upper surface of a lower layer of battery cells;

the base assembly is arranged below the battery cell carrying assembly and is fixedly connected with the lower battery cell conveying line, the upper battery cell conveying line and the support frame;

and the protection assembly is arranged above the wire body assembly, is connected with the base assembly and is positioned outside the battery cell carrying assembly.

Through above-mentioned technical scheme, carry lower floor's electric core and upper electric core respectively through lower floor's electric core transfer chain and upper electric core transfer chain, snatch upper electric core and carry it to the pile up and the amalgamation work of lower floor's electric core upper surface about realizing through clamping jaw assembly.

In some possible embodiments, a first driving mechanism is arranged on the support frame, and is used for driving the beam assembly to move back and forth along the support frame, so as to enable the clamping jaw assembly to grab the upper-layer battery cell and then move in the front-back direction.

In some possible embodiments, a second driving mechanism is arranged on the beam assembly, the clamping jaw assembly is movably connected with the beam assembly through a sliding bearing, and the second driving mechanism drives the clamping jaw assembly to move up and down in the vertical direction and is used for grabbing the upper-layer battery cell and then moving in the vertical direction.

In some possible embodiments, the clamping jaw assembly includes a self-locking cylinder, a mounting plate, four clamping jaws slidably connected below the mounting plate, and a top plate fixedly connected to the mounting plate, where the top plate is located between the four clamping jaws, the top plate is used for abutting against the upper surface of the upper cell, and the self-locking cylinder drives the four clamping jaws to open or close for clamping the periphery of the upper cell.

In some possible embodiments, at least one group of photoelectric sensors is arranged on the clamping jaw assembly and used for monitoring whether the four clamping jaws are opened or retracted in place, and an RFID reader-writer and a correlation type photoelectric sensor are arranged on both the lower-layer cell conveying line and the upper-layer cell conveying line. The RFID read write line of both sides is used for reading respectively on upper electricity core and the lower floor's electric core from the electric core information of taking, piles up when being in the same place at both simultaneously, binds two electric core information of two unification electric cores, makes things convenient for the later stage to trace back. The correlation photoelectric sensors on the two sides are used for monitoring and controlling the in-place conditions of the first tray and the second tray on the lower-layer battery cell conveying line and the upper-layer battery cell conveying line respectively.

In some possible embodiments, a first limiting member is disposed on a side of the lower-layer cell conveying line away from the upper-layer cell conveying line, and the first limiting member is disposed on the base assembly and configured to abut against a side surface of the lower-layer cell as a fixing side to limit a position of the lower-layer cell so as to fix the lower-layer cell.

In some possible embodiments, the first limiting member includes a first fixing seat, a first air cylinder and a first guide rail are fixed on the first fixing seat, a first pressing member is slidably connected to the first guide rail, the first fixing seat is fixedly connected to the base assembly, and the first air cylinder drives the first pressing member to slide along the first guide rail and abut against the side surface of the lower-layer battery cell.

In some possible embodiments, a second limiting member is disposed between the lower-layer cell conveying line and the upper-layer cell conveying line, and the second limiting member is connected to the base assembly and used as a pressing side for clamping the lower-layer cell at a side surface of the lower-layer cell to press the lower-layer cell and limit the position of the lower-layer cell.

In some possible embodiments, the second limiting member includes a second fixed seat, a second cylinder and a second guide rail are fixed on the second fixed seat, a second pressing member is slidably connected to the second guide rail, the second fixed seat is fixedly connected to the base assembly, and the second cylinder drives the second pressing member to slide along the second guide rail and abut against the side surface of the lower-layer battery cell.

In some possible embodiments, a jacking mechanism is fixed on the lower-layer battery core conveying line, the jacking mechanism is located at the bottom of the first tray, the jacking mechanism comprises a jacking cylinder and a jacking plate, at least two vertical positioning pins are arranged on the jacking plate, the jacking cylinder drives the jacking plate to slide upwards and is used for jacking the first tray, the positioning pins are inserted into the bottom surface limiting grooves of the first tray, the first tray is limited and supported, and the accuracy of battery core positioning is improved.

The automatic stacking device for the two-in-one battery cell provided by the invention has the following beneficial effects:

the automatic stacking device for the two-in-one battery cell can be fully automatically produced, can quickly realize the stacking and splicing work of the two-in-one battery cell, reduces the labor cost, has high manufacturing efficiency and high splicing and assembling precision between the upper battery cell and the lower battery cell, and can simultaneously complete the stacking and splicing of a plurality of groups of battery cells. The invention is provided with a wire body assembly which is used for respectively conveying a lower-layer battery cell and an upper-layer battery cell through a lower-layer battery cell conveying line and an upper-layer battery cell conveying line; set up electric core transport subassembly, snatch upper electric core through clamping jaw assembly to carry it to the upper surface of lower floor's electric core, stack up and the amalgamation of two-layer electric core about realizing. The invention also provides a first limiting part and a second limiting part for limiting the lower-layer battery cell, so that the position accuracy of the stacking process of the two-in-one battery cell is ensured.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic perspective view of an automatic two-in-one cell stacking device according to the present invention;

fig. 2 is an exploded view of the two-in-one cell automatic stacking apparatus according to the present invention;

fig. 3 is a schematic perspective view of a first tray and a lower cell in the present invention;

fig. 4 is a three-dimensional structure diagram of the two-in-one battery cell automatic stacking device without a protection component in the invention;

fig. 5 is a front view of the two-in-one cell automatic stacking apparatus of the present invention without a protective assembly;

fig. 6 is a right side view of the two-in-one automatic battery cell stacking apparatus of the present invention without a protection component;

fig. 7 is a schematic perspective view of a cell handling assembly according to the present invention;

figure 8 is a perspective view of a jaw assembly of the present invention;

figure 9 is a schematic view of the connection structure of the wire body assembly and the base assembly of the present invention;

FIG. 10 is a schematic perspective view of a first position-limiting member according to the present invention;

fig. 11 is a schematic perspective view of a second position limiting member according to the present invention;

fig. 12 is a schematic view of a connection structure of the jacking mechanism and the lower cell conveying line in the invention.

The reference numbers in the figures illustrate:

1. a wire body assembly; 11. a lower-layer battery cell conveying line; 12. an upper battery cell conveying line; 13. a first tray; 14. a lower-layer battery cell; 15. a second tray; 16. an upper cell core; 17. double-sided adhesive tape;

2. a battery cell carrying assembly; 21. a support frame; 22. a beam assembly; 23. a jaw assembly; 231. a self-locking cylinder; 232. mounting a plate; 233. a clamping jaw; 234. a top pressing plate; 24. a first drive mechanism; 25. a second drive mechanism; 26. a sliding bearing; 27. a suspension; 28. a spring buffer;

3. a base assembly;

4. a guard assembly; 41. a main body frame; 42. a movable door; 43. a lateral guard plate; 44. a wire body passage; 45. an illuminating lamp; 46. a three-color lighthouse; 47. a touch screen assembly;

5. a first limit piece; 51. a first fixed seat; 52. a first cylinder; 53. a first guide rail; 54. a first pressing member; 55. a first connecting plate;

6. a second limiting member; 61. a second fixed seat; 62. a second cylinder; 63. a second guide rail; 64. a second pressing member; 641. a clamp arm; 642. a pressing arm; 65. a second connecting plate;

7. a jacking mechanism; 71. jacking a cylinder; 72. a jacking plate; 73. positioning pins; 8. an RFID reader; 9. photoelectric sensor, 10, air supply processing assembly.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "outer", "top", "bottom", "front", "back", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are usually placed when the product of the present invention is used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or the element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, in an embodiment of the present invention, a two-in-one automatic battery cell stacking apparatus is provided, including a wire body assembly 1, a battery cell handling assembly 2, a base assembly 3, and a protection assembly 4.

Specifically, in this embodiment, the wire body assembly 1 includes a lower-layer cell conveying line 11 and an upper-layer cell conveying line 12 which are parallel to each other. At least one group of first trays 13 is connected to the lower cell conveying line 11 in a sliding manner, and is used for loading a lower cell 14. At least one set of second trays 15 is slidably connected to the upper cell conveying line 12, and is used for loading an upper cell 16. The first tray 13 and the second tray 15 are slidable left and right along the surfaces thereof on the lower cell flow line 11 and the upper cell flow line 12, respectively, for conveying the lower cell 14 and the upper cell 16.

Referring to fig. 2, 4 and 5, the cell handling assembly 2 includes a support frame 21, a cross beam assembly 22 that spans the support frame 21 and is movable therewith, and at least one set of jaw assemblies 23 suspended below the cross beam assembly 22. The beam assembly 22 is parallel to the lower cell conveyor line 11. The cell handling assembly 2 is used to grab the upper cell 16 and handle it to the upper surface of the lower cell 14.

Referring to fig. 2 and 4, the base assembly 3 is disposed below the cell carrying assembly 2, and is configured to support the wire body assembly 1 and the cell carrying assembly 2, and is fixedly connected to the lower cell conveying line 11, the upper cell conveying line 12, and the support frame 21.

Referring to fig. 1 and fig. 2 again, the protection assembly 4 is disposed above the wire body assembly 1, connected to the base assembly 3, and located outside the battery cell carrying assembly 2 to perform a protection function.

The automatic device that piles up of two unification electric cores that this embodiment provided has realized that the automation of upper and lower two-layer electric core piles up production, and the amalgamation location is accurate between the electric core, has practiced thrift the cost of labor and has accelerated production efficiency simultaneously.

As shown in fig. 4 to fig. 7, in another embodiment of the present invention, a first driving mechanism 24 is disposed on the supporting frame 21, and is used for driving the cross beam assembly 22 to move back and forth along the supporting frame 21, so as to implement the movement of the clamping jaw assembly in the back and forth direction (refer to the X direction shown in fig. 4) after the clamping jaw assembly grips the upper layer of battery cell, where the first driving mechanism 24 is a servo motor. The beam assembly 22 is further provided with a second driving mechanism 25, the clamping jaw assembly 23 is movably connected with the beam assembly 22 through a sliding bearing 26, and the second driving mechanism 25 drives the clamping jaw assembly 23 to move up and down in the vertical direction, so as to grab an upper cell and then move in the vertical direction (refer to the Y direction shown in fig. 4). The second driving mechanism 25 may be a servomotor or a cylinder, and the sliding bearing 26 may be an optical shaft or an oilless bush.

Referring to fig. 8, the clamping jaw assembly 23 includes a self-locking cylinder 231, a mounting plate 232, four clamping jaws 233 slidably connected below the mounting plate, and a pressing plate 234 fixedly connected to the mounting plate 232, wherein the pressing plate 234 is located between the four clamping jaws 233, the pressing plate 234 is configured to press against the upper surface of the upper cell 16, and the self-locking cylinder 231 drives the four clamping jaws 233 to open or close for clamping the periphery of the upper cell 16.

When the upper cell 16 is conveyed, the first driving mechanism 24 drives the beam assembly 22 to move backwards along the support frame 21 to the position above the upper cell conveying line 12, the second driving mechanism 25 drives the clamping jaw assembly 23 to move downwards to the position above the upper cell 16, meanwhile, the four clamping jaws 233 are driven by the self-locking cylinder 231 to open towards the periphery and are positioned around the upper cell 16, and then the self-locking cylinder 231 drives the clamping jaws 233 to close inwards and tighten, so that the upper cell 16 is clamped; under the driving action of the second driving mechanism 25, the clamping jaw assembly 23 carrying the upper cell 16 moves upwards, and under the driving action of the first driving mechanism 24, the cross beam assembly 22 moves forwards along the support frame 21 to the upper side of the lower cell conveying line 11, the clamping jaw assembly 23 moves downwards, the upper cell 16 is pressed on the upper surface of the lower cell 14, and then the clamping jaw 233 returns after releasing the upper cell 16, so that the carrying of the upper cell 16 and the stacking process of two-in-one cells are automatically completed.

The four groups of clamping jaw assemblies 23 can be arranged in parallel, and the four groups of clamping jaw assemblies 23 are fixedly connected with the suspension 27 through the mounting plate 232 and synchronously linked, so that the carrying of the four groups of upper-layer battery cells 16 and the stacking work of the four groups of two-in-one battery cells can be realized at one time. A spring buffer 28 can be further disposed between the mounting plate 232 and the suspension 27, so as to prevent the top pressing plate 234 from pressing the upper cell 16 and the lower cell 14 stacked together when the top pressing plate 234 presses the upper cell 16, thereby avoiding damaging the cells.

In another embodiment of the present invention, as shown in fig. 8, at least one set of photoelectric sensors 9 is disposed on the clamping jaw assembly 23, and is used for detecting the position of the upper electric core 16, so as to control the four clamping jaws 233 to open or retract in time.

As shown in fig. 9, in another embodiment of the present invention, an RFID reader/writer 8 and a correlation type photosensor 9 are provided on each of the lower cell line 11 and the upper cell line 12. The RFID read write line 8 of both sides is used for reading respectively on upper electric core 16 and the lower floor's electric core 14 from the electric core information of taking, piles up when being in the same place at both simultaneously, binds two electric core information of two unification electric cores, makes things convenient for the later stage to trace back. The opposite photoelectric sensors 9 on the two sides are used for monitoring and controlling the in-place conditions of the first tray 13 and the second tray 15 on the lower-layer cell conveying line 11 and the upper-layer cell conveying line 12 respectively.

Referring to fig. 9, in another embodiment of the present invention, in order to improve the accuracy of positioning the lower cell 14 on the lower cell conveyor line 11, a first limiting member 5 is disposed on a side of the lower cell conveyor line 11 away from the upper cell conveyor line 12 as a fixed side, the first limiting member 5 is disposed on the base assembly 3, and after the lower cell 14 is positioned in place, the first limiting member abuts against a front side surface of the lower cell 14 to limit the position of the lower cell 14. The first limiting members 5 may be arranged in two sets in parallel, and may limit the two sets of lower battery cells 14 at the same time.

Specifically, referring to fig. 9 and 10, the first limiting member 5 includes a first fixing seat 51, on which a first cylinder 52 and a first guide rail 53 are fixed. The first pressing piece 54 is connected to the first guide rail 53 in a sliding manner, the first fixing seat 51 is fixedly connected to the base assembly 3, and the first cylinder 52 drives the first pressing piece 54 to slide along the first guide rail 53 and abut against the side surface of the lower-layer battery core 14 for limiting. The first pressing piece 54 can be sequentially abutted and slid to limit the position of the front side surface of the lower-layer battery core 14 when the lower-layer battery core is positioned. The first pressing piece 54 and the first guide rail 53 are respectively arranged in two groups in parallel, the first pressing piece 54 is fixedly connected and synchronously linked through the first connecting plate 55, and the first limiting piece 5 is arranged in two groups in parallel along the lower-layer cell conveying line 11, so that the four groups of lower-layer cells 14 can be limited simultaneously.

Referring to fig. 9, in another embodiment of the present invention, a second limiting member 6 is disposed between the lower cell conveying line 11 and the upper cell conveying line 12, the second limiting member 6 is disposed on the base assembly 3, and after the lower cell 14 is in place, the second limiting member serves as a fixing side for clamping and limiting the remaining left side, right side, and rear side of the lower cell 14, so as to further improve the position stability of the lower cell 14 after being in place on the lower cell conveying line 11. The second limiting members 6 may be disposed in two sets in parallel, and may limit the two sets of lower battery cells 14 simultaneously.

Specifically, referring to fig. 11, the second limiting member 6 includes a second fixing base 61, on which a second cylinder 62 and a second guide rail 63 are fixed, a second pressing member 64 is slidably connected to the second guide rail 63, the second fixing base 61 is fixedly connected to the base assembly 3, and the second cylinder 62 drives the second pressing member 64 to slide along the second guide rail 63 and abut against a side surface of the lower cell 14 for limiting. The second pressing member 64 is in an "E" shape, and includes two symmetrically disposed clamping arms 641 on the left and right, and a pressing arm 642 located between the two clamping arms 641. Under the driving action of the second cylinder 62, the second pressing member 64 slides back and forth along the second rail 63, while the two clamping arms 641 can clamp inward and expand outward and the pressing arm 642 can move back and forth. Referring to fig. 9, when the lower cell 14 on the lower cell conveyor line 11 is in place, the second pressing member 64 slides forward along the second guide rail 63 and extends out, the pressing arm 642 abuts against the rear side surface of the lower cell 14, and meanwhile, the left and right clamping arms 641 are opened and then clamped against the left and right side surfaces of the lower cell 14, so that the left, right and rear three side surfaces of the lower cell 14 are clamped, fixed and limited.

In the invention, two sets of the second pressing pieces 64 and the second guide rails 63 can be respectively arranged in parallel, the second pressing pieces 64 are fixedly connected through the second connecting plate 65 to realize synchronous linkage, and two sets of the second limiting pieces 6 can be arranged in parallel along the lower-layer cell conveying line 11, so that the four sets of the lower-layer cells 14 can be limited simultaneously.

Referring to fig. 9 and 12, in another embodiment of the present invention, in order to further improve the position stability of the first tray 13 after being in place, the jacking mechanism 7 is fixedly disposed on the lower cell conveying line 11, the jacking mechanism 7 is located at the bottom of the first tray 13, the jacking mechanism 7 includes a jacking cylinder 71 and a jacking plate 72, and the jacking cylinder 71 drives the jacking plate 72 to slide upwards to abut against the bottom surface of the first tray 13, so as to limit and support the bottom surface of the first tray 13, thereby improving the accuracy of cell positioning. Be equipped with the constant head tank of indent on the first tray 13 bottom surface, be equipped with two vertical locating pins 73 on the jacking board 72, when jacking board 72 butt in first tray 13 bottom surface, locating pin 73 pegs graft in the constant head tank on first tray 13 bottom surface, adopts the mode of one side two round pins to improve the stability of location.

Referring to fig. 3 and 9, the upper surface of the lower cell 14 in the present invention is provided with a double-sided adhesive tape 17, and when the lower surface of the upper cell 16 is stacked and pressed on the upper surface of the lower cell 14, the upper and lower cells are initially bonded together, so as to prevent the two cells from moving relatively during the movement process. Four L-shaped limiting columns are arranged on the first tray 13 and the second tray 15 and are respectively positioned at four corners of the lower-layer battery cell 14 and the upper-layer battery cell 16 so as to limit the two battery cells.

Referring to fig. 1, the base assembly 3 of the present invention is provided with an air source processing assembly 10 for processing compressed air to ensure the stability of the operation of the pneumatic transmission system in the whole stacking apparatus.

Referring to fig. 1 and 2, the shield assembly 4 of the present invention includes a main body frame 41, a movable door 42, and a side guard 43. Two wire body channels 44 are symmetrically arranged on the left lateral protective plate 43 and the right lateral protective plate 43, and the lower-layer cell conveying line 11 and the upper-layer cell conveying line 12 respectively penetrate out of the wire body channels 44. An illuminating lamp 45 is arranged above the interior of the protection component 4 for illuminating, and a three-color tower lamp 46 is arranged at the top of the protection component for prompting the working state; a touch screen assembly 47 is provided externally for manipulating the specific operating conditions of the device.

The upper-layer cell conveying line 11 and the lower-layer cell conveying line 12 in the invention can adopt an upper-layer and a lower-layer conveying line structure. In the invention, an isolation plate can be further arranged above the second limiting part 6 to separate the clamping jaw assembly 23 from the second limiting part 6, so that the battery cell is prevented from falling off, and the safety protection performance is improved. After the clamping jaw assembly 23 clamps the upper-layer battery cell 16, the upper-layer battery cell can be temporarily stopped above the second limiting part 6, and after the lower-layer battery cell 14 arrives, the upper-layer battery cell 16 is carried to the upper side of the lower-layer battery cell 14 to be stacked and pressed after being accurately and limitedly fixed by the first limiting part 5 and the second limiting part 6.

In the invention, all parts of the first tray 13, the second tray 15, the clamping jaw assembly 23, the first limiting piece 5, the second limiting piece 6 and the like which are in direct contact or possible contact with a battery cell in the device are made of insulating materials, so that safety accidents are prevented.

It is to be noted that "front" with an indication orientation in the present invention refers to a side close to the lower-layer cell conveyance line 11, and "rear" refers to a side close to the upper-layer cell conveyance line 12.

While the invention has been shown and described with reference to the above preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, taken in conjunction with the specific embodiments thereof, and that no limitation of the invention is intended thereby. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides an automatic device that piles up of two unification electric cores which characterized in that includes:

the wire body assembly (1) comprises a lower-layer battery cell conveying line (11) and an upper-layer battery cell conveying line (12) which are parallel to each other, wherein at least one group of first trays (13) is connected to the lower-layer battery cell conveying line (11) in a sliding mode and used for loading a lower-layer battery cell (14), and at least one group of second trays (15) is connected to the upper-layer battery cell conveying line (12) in a sliding mode and used for loading an upper-layer battery cell (16);

the battery cell handling assembly (2) comprises a support frame (21), a beam assembly (22) stretching across the support frame (21) and moving with the support frame, and at least one group of clamping jaw assemblies (23) hung below the beam assembly (22) and used for grabbing the upper battery cell (16) and handling the upper surface of the lower battery cell (14);

the base assembly (3) is arranged below the battery cell carrying assembly (2) and is fixedly connected with the lower-layer battery cell conveying line (11), the upper-layer battery cell conveying line (12) and the supporting frame (21);

and the protection assembly (4) is arranged above the wire body assembly (1), is connected with the base assembly (3) and is positioned outside the battery cell carrying assembly (2).

2. The automatic stacking device for two-in-one battery cells according to claim 1, wherein the supporting frame (21) is provided with a first driving mechanism (24) for driving the beam assembly (22) to move back and forth along the supporting frame (21).

3. The automatic stacking device for two-in-one battery cells according to claim 1, wherein a second driving mechanism (25) is arranged on the beam assembly (22), the clamping jaw assembly (23) is movably connected with the beam assembly (22) through a sliding bearing (26), and the second driving mechanism (25) drives the clamping jaw assembly (23) to move up and down in a vertical direction.

4. The automatic stacking device for two-in-one battery cells according to claim 3, wherein the clamping jaw assembly (23) comprises a self-locking cylinder (231), a mounting plate (232), four clamping jaws (233) slidably connected below the mounting plate, and a pressing plate (234) fixedly connected with the mounting plate (232), the pressing plate (234) is located between the four clamping jaws (233), the pressing plate (234) is used for pressing against the upper surface of an upper battery cell (16), and the self-locking cylinder (231) drives the four clamping jaws (233) to open or close for clamping the periphery of the upper battery cell (16).

5. The automatic stacking device of two-in-one battery cells according to claim 4, wherein at least one group of photoelectric sensors (9) is arranged on the clamping jaw assembly (23), and an RFID reader-writer (8) and a photoelectric sensor (9) are arranged on both the lower battery cell conveying line (11) and the upper battery cell conveying line (12).

6. The automatic stacking device for two-in-one battery cells according to claim 1, wherein a first limiting member (5) is disposed on a side of the lower battery cell conveying line (11) away from the upper battery cell conveying line (12), and the first limiting member (5) is disposed on the base assembly (3) and configured to abut against a side surface of the lower battery cell (14) to fix a position of the lower battery cell.

7. The automatic stacking device for two-in-one battery cells according to claim 6, wherein the first limiting member (5) comprises a first fixing seat (51), a first cylinder (52) and a first guide rail (53) are fixed on the first fixing seat (51), a first pressing member (54) is slidably connected to the first guide rail (53), the first fixing seat (51) is fixedly connected to the base assembly (3), and the first cylinder (52) drives the first pressing member (54) to slide along the first guide rail (53) and abut against a side surface of the lower battery cell (14).

8. The automatic stacking device for two-in-one battery cells according to claim 1, wherein a second limiting member (6) is disposed between the lower battery cell conveying line (11) and the upper battery cell conveying line (12), and the second limiting member (6) is connected to the base assembly (3) and is configured to be clamped on a side surface of the lower battery cell (14) to limit a position of the lower battery cell.

9. The automatic stacking device for two-in-one battery cells according to claim 8, wherein the second limiting member (6) comprises a second fixing seat (61), a second cylinder (62) and a second guide rail (63) are fixed on the second fixing seat (61), a second pressing member (64) is slidably connected to the second guide rail (63), the second fixing seat (61) is fixedly connected to the base assembly (3), and the second cylinder (62) drives the second pressing member (64) to slide along the second guide rail (63) and abut against a side surface of the lower battery cell (14).

10. The automatic stacking device for two-in-one battery cells according to claim 1, wherein a jacking mechanism (7) is fixed on the lower battery cell conveying line (11), the jacking mechanism (7) is located at the bottom of the first tray (13), the jacking mechanism (7) comprises a jacking cylinder (71) and a jacking plate (72), at least two vertical positioning pins (73) are arranged on the jacking plate (72), and the jacking cylinder (71) drives the jacking plate (72) to slide upwards for jacking the first tray (13).