CN219066875U - Module stacks and welding composite set - Google Patents

Abstract

The utility model provides a module stacking and welding combination device, and belongs to the technical field of new energy battery production equipment. The combined device comprises a sliding bottom plate, a stacking assembly and a welding positioning plate. The stacking assembly comprises a limiting plate, an end pressing plate, a first driving device and two side pressing plates. The two side pressure plates are arranged in parallel at intervals and fixedly mounted on the sliding bottom plate, the limiting plate is fixedly mounted at one ends of the two side pressure plates, the first driving device is fixedly mounted at the other ends of the two side pressure plates, and a first telescopic rod connected with the end pressure plate is arranged on the first driving device. The welding positioning plate cover is arranged on the two side pressing plates and detachably connected with the two side pressing plates, and the welding positioning plate is provided with a bridging limiting through groove. By adopting the combined device, the problems of low welding precision and low product yield of the bridging aluminum row due to the deviation of the battery cells caused by the transportation of the battery cell modules among various tools in the traditional battery cell module stacking and welding processes can be solved.

Description

Module stacks and welding composite set

Technical Field

The utility model relates to the technical field of new energy battery production equipment, in particular to a module stacking and welding combination device.

Background

In the field of new energy batteries, in order to improve the cruising ability, different numbers of electric cores are often required to be connected in series-parallel to form an electric core module so as to provide corresponding voltage or current for a load end. During assembly, a plurality of single battery cells are sequentially arranged into a row and are tightly adhered to each other, then the single battery cells in the row are bound and combined through the end plates and the steel belts, and finally the aluminum bridging rows are welded on the pole posts on the battery cells in a certain sequence to form the battery cell module.

In the related art, aiming at the stacking and welding procedures of the battery cell module, firstly, a module stacking tool is used for stacking the battery cell and horizontally extruding to eliminate an assembly gap, then, the stacked module is transferred into a welding tool, then, a busbar is arranged on the module for performing laser welding action, and after a series of tools and actions, the module assembling and welding task is completed.

By adopting the traditional stacking and welding procedures of the cell module, a plurality of tools for stacking, extruding, transferring and the like of the module are required to be arranged on a production line in succession, and the whole production beat is prolonged. Meanwhile, stacking extrusion of the battery cells is completed, and the battery cells are transferred to a laser welding position, relative sliding in the height direction possibly occurs among the battery cells of the battery cell module in the transferring process, so that when welding of the bridging aluminum row and the electrode posts is subsequently performed, the bridging aluminum row and the two battery cell electrode posts are not firmly attached, and the problems of deviation and cold joint occur, and the product yield is low.

Disclosure of Invention

The embodiment of the utility model provides a module stacking and welding combination device, which can solve the problems of cell deviation caused by transferring of cell modules among various tools in the traditional cell module stacking and welding process, and low welding precision and product yield of bridging aluminum bars. The technical scheme is as follows:

the embodiment of the utility model provides a module stacking and welding combination device, which comprises: the sliding bottom plate is arranged on the sliding rail communicated with the laser welding station in a sliding manner;

the stacking assembly comprises a limiting plate, an end pressing plate, a first driving device and two side pressing plates, wherein the limiting plate, the end pressing plate and the side pressing plates are perpendicular to the sliding bottom plate, the two side pressing plates are arranged at intervals in parallel and fixedly mounted on the sliding bottom plate, the limiting plate and the end pressing plate are perpendicular to the side pressing plates, the limiting plate is fixedly mounted at one ends of the two side pressing plates, the first driving device is fixedly mounted at the other ends of the two side pressing plates, the end pressing plate is located between the limiting plate and the first driving device, a first telescopic rod is arranged on the first driving device, and the first telescopic rod is perpendicularly connected with the end pressing plate;

the welding positioning plate covers the two side pressing plates and is detachably connected with the two side pressing plates, and the welding positioning plate is provided with a bridging limiting through groove.

Optionally, the top terminal surface of two side pressure boards is gone up the protrusion and is provided with grafting arch, be provided with on the welding locating plate with grafting protruding assorted grafting through groove.

Optionally, a positioning bolt is convexly arranged on one of the top end surfaces of the two side pressure plates, and a positioning pin hole matched with the positioning bolt is arranged on the welding positioning plate.

Optionally, the module stacking and welding combination device further comprises a bottom positioning plate, wherein the bottom positioning plate is installed on the sliding bottom plate and is located between the two side pressing plates.

Optionally, the bottom locating plate is the rectangle and follows slide bottom plate's central line direction extends, the limiting plate bottom is connected with the location slider, the limiting plate passes through the location slider with bottom locating plate sliding connection, the location bolt hole has been seted up on the location slider.

Optionally, the limiting plate and the opposite plate surfaces of the end pressing plate are respectively provided with an elastic bump.

Optionally, elastic backing plates are arranged on the opposite plate surfaces of the two side pressing plates.

Optionally, the module stacking and welding combination device further comprises two second driving devices, the two second driving devices are arranged on one sides of the two side pressing plates, a second telescopic rod is arranged on the second driving devices, the second telescopic rod is vertically connected with one of the two side pressing plates, and the other one of the two side pressing plates is fixedly connected with the sliding bottom plate.

Optionally, a holding handle is arranged on the welding positioning plate.

Optionally, the two side pressing plates and the welding positioning plate are both POM material plates.

The technical scheme provided by the embodiment of the utility model has the beneficial effects that at least:

when the module stacking and welding combination device provided by the embodiment of the utility model is used for stacking and welding the battery core modules, the limiting plates and the two side pressing plates are used for horizontally limiting and fixing the battery cores, the welding positioning plates are used for vertically limiting and fixing, and finally the first driving device is used for driving the end pressing plates to stack and extrude the battery cores, so that the assembly gap is eliminated. And after finishing extrusion processing, through carrying out whole slip to the welding composite set and a plurality of electric core of slip bottom plate top and moving to laser welding station, guarantee that a plurality of electric cores remain spacing compact state all the time when transporting, the installation direction to the bridging aluminium row is realized to the spacing logical groove that connects on the last utilization welding locating plate, guarantee that the bridging aluminium row can be accurately welded with the utmost point post of electric core, effectively solve traditional electric core module and pile up and weld the process, because of electric core module transports the electric core offset that causes between multiple frock, bridging aluminium row welding precision and the low problem of product yield.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a module stacking and welding assembly device according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a mechanism of the module stacking and welding assembly provided by the embodiment of the utility model after the welding positioning plate is removed;

fig. 3 is a schematic side view of a module stacking and welding assembly device according to an embodiment of the utility model.

In the figure:

1-a sliding bottom plate; a 2-stack assembly; 3-welding a positioning plate; 4-a bottom positioning plate; 5-a second drive means; 21-a limiting plate; 22-end press plates; 23-a first drive; 24-side pressing plates; 25-elastic bumps; 31-bridging the limit through groove; 32-inserting through grooves; 33-locating pin holes; 34-a grip handle; 51-a second telescopic rod; 211-positioning a sliding block; 231-a first telescopic rod; 241-plug-in protrusions; 242-positioning a bolt; 243-elastic backing plate; 251-notch; 2111-locating bolt holes; an m-cell module; m 1-an electric core; m 2-a liquid cooling plate; n-bridging aluminum rows.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings.

In the related art, aiming at the stacking and welding procedures of the battery cell module, firstly, a module stacking tool is used for stacking the battery cell and horizontally extruding to eliminate an assembly gap, then, the stacked module is transferred into a welding tool, then, a busbar is arranged on the module for performing laser welding action, and after a series of tools and actions, the module assembling and welding task is completed.

By adopting the traditional stacking and welding procedures of the cell module, a plurality of tools for stacking, extruding, transferring and the like of the module are required to be arranged on a production line in succession, and the whole production beat is prolonged. Meanwhile, stacking extrusion of the battery cells is completed, and the battery cells are transferred to a laser welding position, relative sliding in the height direction possibly occurs among the battery cells of the battery cell module in the transferring process, so that when welding of the bridging aluminum row and the electrode posts is subsequently performed, the bridging aluminum row and the two battery cell electrode posts are not firmly attached, and the problems of deviation and cold joint occur, and the product yield is low.

Fig. 1 is a schematic perspective view of a module stacking and welding assembly device according to an embodiment of the utility model. Fig. 2 is a schematic diagram of a mechanism of the module stacking and welding assembly device according to the embodiment of the utility model after the welding positioning plate is removed. Fig. 3 is a schematic side view of a module stacking and welding assembly device according to an embodiment of the utility model. As shown in fig. 1 to 3, in practice, the applicant provides a modular stacking and welding assembly comprising a sliding base plate 1, a stacking assembly 2 and a welding positioning plate 3. The sliding bottom plate 1 is used for being arranged on a sliding rail communicated with the laser welding station in a sliding mode.

The stacking assembly 2 includes a limiting plate 21, an end pressing plate 22, a first driving device 23, and two side pressing plates 24. The limiting plate 21, the end pressing plate 22 and the side pressing plates 24 are perpendicular to the sliding bottom plate 1, the two side pressing plates 24 are arranged in parallel at intervals and fixedly mounted on the sliding bottom plate 1, and the limiting plate 21 and the end pressing plate 22 are perpendicular to the side pressing plates 24. The limiting plate 21 is fixedly arranged at one end of the two side pressing plates 24, the first driving device 23 is fixedly arranged at the other end of the two side pressing plates 24, the end pressing plate 22 is positioned between the limiting plate 21 and the first driving device 23, the first driving device 23 is provided with a first telescopic rod 231, and the first telescopic rod 231 is vertically connected with the end pressing plate 22.

The welding positioning plate 3 is covered on the two side pressing plates 24 and detachably connected with the two side pressing plates 24, and the welding positioning plate 3 is provided with a bridging limit through groove 31.

In the embodiment of the present utility model, when the stacking and welding processes of the cell modules m are required, a worker may put a plurality of the cells m1 on the limiting plate 21 from above in a predetermined stacking order and set between the two side pressing plates 24. The two side press plates 24 can be used as limiting structures on two sides, and limit and fix the plurality of electric cores m1 in the horizontal direction, so that the plurality of electric cores m1 are prevented from sliding relatively leftwards and rightwards in the horizontal direction in the subsequent pressing process. After the multiple electric cores m1 are approximately put in place, the welding positioning plate 3 is fixedly covered on the side pressing plates 24, the welding positioning plate 3 is attached to the top end faces of the multiple electric cores m1 to carry out limiting butt joint in the vertical direction, and meanwhile the bridging limiting through grooves 31 on the welding positioning plate 3 can enable adjacent polar posts on the two electric cores m1 which are in butt joint to be exposed exactly. Then, the end pressing plate 22 is pushed to extend towards the direction of the limiting plate 21 by the first telescopic rod 231 on the first driving device 23, and the plurality of electric cores m1 positioned between the limiting plate 21 and the end pressing plate 22 are horizontally extruded, so that the plurality of electric cores m1 which are sequentially arranged are closely attached to each other, and possible assembly gaps are eliminated. At this time, two adjacent polar posts in each bridging limit through groove 31 are located at correct welding positions, and after the welding combination device above the sliding bottom plate 1 and the plurality of electric cores m1 are integrally moved to a laser welding station through the external sliding rail, bridging aluminum rows n can be installed in the bridging limit through grooves 31 in a one-to-one correspondence manner at the laser welding station for laser welding, so that the series connection among the plurality of electric cores m1 is completed.

When the module stacking and welding combination device provided by the embodiment of the utility model is used for stacking and welding the battery cells m, the limiting plates 21 and the two side pressing plates 24 are used for horizontally limiting and fixing the battery cells m1, the welding positioning plates 3 are used for vertically limiting and fixing, and finally the first driving device 23 is used for driving the end pressing plates 22 to stack and extrude the battery cells m1, so that the assembly gap is eliminated. After extrusion processing is completed, the welding combination device above the sliding bottom plate 1 and the plurality of electric cores m1 are integrally and slidably moved to a laser welding station, so that the plurality of electric cores m1 are guaranteed to be always kept in a limiting and pressing state during transferring, and finally the bridging limiting through groove 31 on the welding positioning plate 3 is utilized to realize installation guiding of the bridging aluminum row n, so that the bridging aluminum row n can be accurately welded with the pole of the electric core m1, and the problem that in the traditional electric core module stacking and welding process, the electric core offset caused by transferring of the electric core module among various tools is effectively solved, and the bridging aluminum row welding precision and the product yield are low is solved.

Optionally, the top end surfaces of the two side pressure plates 24 are convexly provided with plugging protrusions 241, and the welding positioning plate 3 is provided with plugging through grooves 32 matched with the plugging protrusions 241. Illustratively, in the embodiment of the present utility model, a plurality of columnar plugging protrusions 241 with streamline outlines are arranged at intervals on the top end surfaces of the side pressing plates 24, when the welding positioning plate 3 is covered, the corresponding plugging grooves 32 on the welding positioning plate 3 are aligned with the plugging protrusions 241, the welding positioning plate 3 is covered on the top end surfaces of the two side pressing plates 24 from top to bottom, and the plugging protrusions 241 are correspondingly clamped into the plugging grooves 32 to lock the welding positioning plate 3, so that the structure is simple and the disassembly is convenient.

Optionally, a positioning pin 242 is convexly arranged on one of the top end surfaces of the two side pressure plates 24, and a positioning pin hole 33 matched with the positioning pin 242 is arranged on the welding positioning plate 3. For example, in the embodiment of the present utility model, due to the numerous plugging protrusions 241, the situation that the welding positioning plate 3 is reversely taken or the welding positioning plate is misaligned manually and is difficult to stably cover may occur during the covering process of the worker. Through protruding setting up location bolt 242 on one of them location of two side pressure plates 24, the welding location board 3 corresponds on the side and sets up location pinhole 33, makes things convenient for the staff to find corresponding position when the lid, carries out the accurate lid of welding location board 3 and closes after utilizing location bolt 242 and location pinhole 33 to advance the location, effectively provides improvement machining efficiency.

Optionally, the module stacking and welding combination device further comprises a bottom positioning plate 4, wherein the bottom positioning plate 4 is mounted on the sliding bottom plate 1 and is positioned between the two side pressing plates 24. In the embodiment of the present utility model, a layer of bakelite bottom positioning plate 4 is arranged on the sliding bottom plate 1 to support the plurality of electric cores m1, so that the plurality of electric cores m1 are isolated from the sliding bottom plate 1 while the bottom end surfaces of the plurality of electric cores m1 are located on the same processing horizontal line, and direct contact is avoided. The influence of vibration generated in the transferring process of the sliding bottom plate 1 on the sliding rail on a plurality of electric cores m1 which are processed through extrusion is reduced, and the processing accuracy is effectively improved.

Optionally, the bottom positioning plate 4 is rectangular and extends along the central line direction of the sliding bottom plate 1, the bottom of the limiting plate 21 is connected with a positioning sliding block 211, the limiting plate 21 is slidably connected with the bottom positioning plate 4 through the positioning sliding block 211, and the positioning sliding block 211 is provided with a positioning bolt hole 2111. Illustratively, in the embodiment of the present utility model, for the cell modules having different overall lengths in the horizontal direction, the spacing between the limiting plate 21 and the end pressing plate 22 located at the initial position may be adjusted by adjusting the position of the positioning slider 211 in the length direction of the bottom positioning plate 4, so that adaptive stacking and pressing processes may be performed. After the position adjustment is completed, the positioning device can be fixed with the bottom positioning plate 4 by screwing butterfly screws into the positioning bolt holes 2111 on the positioning sliding block 211, and the positioning device is simple in structure and convenient to adjust, so that the suitability of the stacking and welding combination device is further improved.

Optionally, elastic protruding blocks 25 are arranged on the opposite plate surfaces of the limiting plate 21 and the end pressing plate 22. In the embodiment of the utility model, by arranging the elastic protruding blocks 25 on the plate surfaces of the limiting plate 21 and the end pressing plate 22 for contacting the battery cell m1, the hard limiting plate 21 and the end pressing plate 22 are prevented from being directly contacted with the side wall of the shell of the battery cell m1 to scratch, meanwhile, the static friction after contact is improved, the relative sliding between the battery cell m1 and the limiting plate 21 and the end pressing plate 22 during extrusion processing is further reduced, and the processing safety and the accuracy of stacking extrusion processing are effectively improved.

In the embodiment of the utility model, the plurality of electric cores m1 are arranged in two rows, the liquid cooling plate m2 is arranged between the two rows of electric cores m1 in a machine-clamped mode, and the brightness of the liquid cooling plate m2 is arranged in a protruding mode relative to the two side end faces of the plurality of electric cores m1 in the length direction. Correspondingly, corresponding notches 251 are also formed in the middle of the elastic protruding blocks 25 on the limiting plate 21 and the end pressing plate 22, so that the protruding structure of the liquid cooling plate m2 is avoided while the elastic protruding blocks 25 can be fully contacted with the battery cell m 1.

Optionally, elastic pads 243 are provided on the opposite plate surfaces of the two side pressure plates 24. Illustratively, in the embodiment of the present utility model, by providing the elastic pad 243, the hard side press plates 24 can be prevented from directly contacting the side wall of the housing of the battery cell m1 to generate scratch, and meanwhile, the static friction after contact is improved, so that the relative sliding between the battery cell m1 and the two side press plates 24 during extrusion processing is further reduced, and the processing safety and the accuracy of stacking extrusion processing are further improved.

Optionally, the module stacking and welding combination device further includes two second driving devices 5, the two second driving devices 5 are disposed on one sides of the two side pressing plates 24, the second driving devices 5 are provided with second telescopic rods 51, the second telescopic rods 51 are vertically connected with one of the two side pressing plates 24, and the other of the two side pressing plates 24 is fixedly connected with the sliding bottom plate 1. Illustratively, in the embodiment of the present utility model, when the stacking of the cells m1 is performed, the second telescopic rod 51 may be driven to retract by the second driving device 5, so that more margin is left for stacking of the plurality of cells m 1. One side of a plurality of electric core m1 can be earlier with fixed connection in the side pressure board 24 parallel and level on sliding bottom plate 1 place in order to realize with the location back, drive second telescopic link 51 extension again to make the interval between two side pressure boards 24 reach the preset width value of battery module, carry out the spacing fixedly of side direction to a plurality of electric core m1, simultaneously through setting up above adjustment mechanism, also can carry out adaptability to electric core module m of different width dimensions and adjust, effectively improved the suitability and the practicality of stacking and welding composite set.

Optionally, a grip handle 34 is provided on the weld alignment plate 3. Illustratively, in the embodiment of the present utility model, when the worker performs the covering and removing of the welding positioning plate 3, the worker can press and lift by holding the holding handle 34, which is convenient and labor-saving, and further improves the practicability of the stacking and welding combination device.

Alternatively, both side pressure plates 24 and weld alignment plate 3 are plates of POM material. Illustratively, in the embodiment of the present utility model, the side pressing plate 24 and the welding positioning plate 3 are both plates of POM (polyoxymethylene) material, which have characteristics of high hardness, high rigidity and high wear resistance, and are excellent in wear resistance and insulation properties as plastic materials, so that the service life of the stacking and welding combination device can be ensured while reducing the processing cost.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not denote a limitation of quantity, but rather denote the presence of one of the components. The word "comprising" or "comprises", and the like, is intended to mean that elements or items that are present in front of "comprising" or "comprising" are included in the word "comprising" or "comprising", and equivalents thereof, without excluding other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to denote relative positional relationships, which may also change accordingly when the absolute position of the object to be described changes.

The foregoing description of the preferred embodiments of the present utility model is not intended to limit the utility model, but rather, the utility model is to be construed as limited to the appended claims.

Claims (10)

1. A modular stacking and welding assembly comprising:

the sliding bottom plate (1) is arranged on a sliding rail communicated with the laser welding station in a sliding manner;

the stacking assembly (2) comprises a limiting plate (21), an end pressing plate (22), a first driving device (23) and two side pressing plates (24), wherein the limiting plate (21), the end pressing plate (22) and the side pressing plates (24) are perpendicular to the sliding bottom plate (1), the two side pressing plates (24) are arranged at intervals in parallel and fixedly mounted on the sliding bottom plate (1), the limiting plate (21) and the end pressing plate (22) are perpendicular to the side pressing plates (24), the limiting plate (21) is fixedly mounted at one ends of the two side pressing plates (24), the first driving device (23) is fixedly mounted at the other ends of the two side pressing plates (24), the end pressing plate (22) is located between the limiting plate (21) and the first driving device (23), a first telescopic rod (231) is arranged on the first driving device (23), and the first telescopic rod (231) is perpendicularly connected with the end pressing plate (22);

welding locating plate (3), welding locating plate (3) lid is located two on side pressure board (24) and with two can dismantle with side pressure board (24) and be connected, be provided with bridging spacing logical groove (31) on welding locating plate (3).

2. The module stacking and welding combination device according to claim 1, wherein the top end surfaces of the two side pressure plates (24) are convexly provided with inserting protrusions (241), and the welding positioning plate (3) is provided with inserting through grooves (32) matched with the inserting protrusions (241).

3. The module stacking and welding combination device according to claim 2, wherein a positioning pin (242) is convexly arranged on one of the top end surfaces of the two side pressure plates (24), and a positioning pin hole (33) matched with the positioning pin (242) is arranged on the welding positioning plate (3).

4. The modular stacking and welding combination as recited in claim 1, further comprising a bottom positioning plate (4), said bottom positioning plate (4) being mounted on said sliding base plate (1) between said two side pressure plates (24).

5. The module stacking and welding combination device according to claim 4, wherein the bottom positioning plate (4) is rectangular and extends along the central line direction of the sliding bottom plate (1), the bottom of the limiting plate (21) is connected with a positioning sliding block (211), the limiting plate (21) is slidably connected with the bottom positioning plate (4) through the positioning sliding block (211), and the positioning sliding block (211) is provided with a positioning bolt hole (2111).

6. The modular stacking and welding assembly as claimed in any one of claims 1 to 5, characterized in that the limiting plate (21) and the end pressing plate (22) are provided with elastic lugs (25) on opposite faces.

7. The modular stacking and welding assembly as recited in any one of claims 1 to 5, wherein the two side press plates (24) are provided with resilient pads (243) on opposite faces thereof.

8. The module stacking and welding combination device according to any one of claims 1 to 5, further comprising two second driving devices (5), wherein the two second driving devices (5) are arranged at one sides of the two side pressure plates (24), a second telescopic rod (51) is arranged on the second driving devices (5), the second telescopic rod (51) is vertically connected with one of the two side pressure plates (24), and the other of the two side pressure plates (24) is fixedly connected with the sliding bottom plate (1).

9. The modular stacking and welding assembly as claimed in any one of claims 1 to 5, characterized in that the welding positioning plate (3) is provided with a gripping handle (34).

10. The modular stacking and welding assembly as claimed in any one of claims 1 to 5, wherein the two side press plates (24) and the welding positioning plate (3) are both POM material plates.

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