CN216421393U

CN216421393U - Battery cell bus bar piece welding equipment

Info

Publication number: CN216421393U
Application number: CN202122065691.1U
Authority: CN
Inventors: 陈立新; 林俊志; 李金豪
Original assignee: Shenzhen Yongxingye Equipment Technology Co ltd
Current assignee: Shenzhen Yongxingye Equipment Technology Co ltd
Priority date: 2021-08-30
Filing date: 2021-08-30
Publication date: 2022-05-03
Anticipated expiration: 2031-08-30

Abstract

The utility model discloses a welding device of a cell bus bar, which comprises a bedplate and a cell feeding device fixed on one side of the upper surface of the bedplate, wherein a switching device which is convenient for switching among stations during the welding of the bus bar is arranged at the center of the bedplate, the bus bar feeding device with an alignment structure is symmetrically fixed on one side of the bedplate, a laser welder which is used for welding the bus bar to the end part of a cell is symmetrically fixed on one side of the bedplate close to the bus bar feeding device, a pressing device which is used for tightly attaching the bus bar to the cell during the welding is fixed on one side of the laser welder close to the switching device, a bus bar bending device is symmetrically fixed on one side of the bedplate, and a centering assembly is arranged to ensure that the positions of the bus bar and the cell during the welding can be aligned, no deviation occurs at the edge, so that the welded connecting surface can be kept flat, and the fastening degree of the bus bar and the cell is high, the conduction is smooth, and the quality of the output battery can be effectively improved.

Description

Battery cell bus bar piece welding equipment

Technical Field

The utility model relates to the technical field of lithium battery and super capacitor production, in particular to a welding device for a cell bus bar.

Background

With the increasing maturity of new energy batteries production technology, lithium batteries and super capacitors have the advantages of high energy storage efficiency, environmental protection and the like, and begin to become a new favorite in new energy markets, and researches find that the automation degree and the operation accuracy of production equipment have great influence on the quality of batteries.

In the production process of lithium batteries and super capacitors, welding procedures of positive and negative bus bars are required, and the alignment degree between the bus bars and battery cells during welding is a determining factor for determining the welding accuracy.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a welding device for a cell bus bar, which aims to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides an electric core busbar piece welding equipment, includes the platen and fixes the electric core loading attachment in platen upper surface one side, the central department of platen installs the conversion equipment that makes things convenient for switching between each station when the busbar piece welds, one side is fixed with symmetrically and has the busbar piece loading attachment who adjusts the structure well on the platen, and the platen is close to busbar piece loading attachment one side and is fixed with the laser welder with the busbar piece welding to electric core tip symmetrically, the laser welder is close to conversion equipment one side and is fixed with the closing device that makes the busbar piece and electric core paste during the welding, platen one side is fixed with busbar piece bending device symmetrically.

Preferably, the battery cell feeding device, the bus bar feeding device, the laser welder and the bus bar bending device are all uniformly distributed in a circumferential shape by taking the conversion device as a center.

Preferably, the confluence sheet feeding device comprises an XZ axial linear platform, claws, suckers, a support frame, a vibrating disc, a conveying guide rail, a limiting frame, a cylinder and a centering assembly, the claws are fixed at the output end of the XZ axial linear platform, the suckers are symmetrically installed on the lower surface of the claws, the support frame is fixed at one side of the bedplate close to the XZ axial linear platform, the vibrating disc is fixedly installed on the support frame, the conveying guide rail is erected on the support frame, one end of the conveying guide rail is communicated with the output port of the vibrating disc, the limiting frame is fixed at the other end of the conveying guide rail, the cylinder is installed at one side of the limiting frame, and the centering assembly is fixed at one side of the bedplate close to the XZ axial linear platform.

Preferably, the centering assembly comprises a support column, a pneumatic clamping jaw and a positioning disc, the pneumatic clamping jaw is fixed to the top end of the support column, and the positioning disc is fixedly mounted on the movable end of the pneumatic clamping jaw.

Preferably, the conversion device comprises a rotary table, a rotary disc, three-jaw centering clamps and positioning and clamping assemblies, the rotary table is mounted at the center of the table plate, the rotary disc is fixed at the output end of the rotary table, the three-jaw centering clamps are fixed on the upper surface of the rotary disc at equal intervals, and the positioning and clamping assemblies are fixed on the inner side of the three-jaw centering clamps on the rotary disc at equal intervals.

Preferably, location centre gripping subassembly is including loading board, pneumatic slip table, crossing cab apron, first pneumatic finger, the pneumatic finger of second, location clamping jaw and recess, it is fixed with pneumatic slip table to load the board top, and pneumatic slip table keeps away from and loads board one side and install the cab apron, the last fixed surface who crosses the cab apron has first pneumatic finger, and just first pneumatic finger is kept away from and is fixed with the pneumatic finger of second in cab apron one side, equal fixed mounting has the location clamping jaw on the output that first pneumatic finger and the pneumatic finger of second, the location clamping jaw is close to in the three-jaw anchor clamps one end inboard and offers flutedly.

Compared with the prior art, the utility model has the beneficial effects that:

1. different from the prior patent, the arrangement of the internal centering assembly has the advantages that the positions of the electric core and the current collecting plate are aligned before welding, and the measures have the advantages that the position alignment of the current collecting plate and the electric core during welding can be ensured, no deviation can occur at the edge, so that the welded connecting surface can be kept straight, the fastening degree of the current collecting plate and the electric core is high, the conduction is smooth, and the quality of a produced battery can be effectively improved;

2. compared with a linear arrangement mode, the device has the advantages that the arrangement among stations is reasonable due to the overall circumferential shape, the overall structure is more compact, the occupied space is small, and the transition structure among the working procedures is clear;

3. the positioning and clamping assembly adopts two groups of pneumatic clamps and a height adjusting structure in a certain range, which provides necessary conditions for the device to adapt to the welding of the battery cores and the bus pieces with different sizes (mainly indicating the lengths), and improves the applicability of the device.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of a bus bar feeding device according to the present invention;

FIG. 3 is a schematic view of the centering assembly of the present invention;

FIG. 4 is a schematic structural diagram of a conversion device according to the present invention;

FIG. 5 is a schematic view of a positioning and clamping assembly according to the present invention.

In the figure: 1. a platen; 2. a battery cell loading device; 3. a busbar loading device; 4. a laser welder; 5. a pressing device; 6. a busbar bending device; 7. a conversion device; 8. an XZ axis linear stage; 9. a claw hand; 10. a suction cup; 11. a support frame; 12. a vibrating pan; 13. a conveying guide rail; 14. a limiting frame; 15. a cylinder; 16. a centering assembly; 17. a pillar; 18. a pneumatic clamping jaw; 19. positioning a plate; 20. a turntable; 21. rotating the disc; 22. a three-jaw centering fixture; 23. positioning the clamping assembly; 24. a loading plate; 25. a pneumatic sliding table; 26. a transition plate; 27. a first pneumatic finger; 28. a second pneumatic finger; 29. positioning the clamping jaw; 30. and (4) a groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: the utility model provides an electric core busbar welding equipment, includes platen 1 and fixes the electric core loading attachment 2 in platen 1 upper surface one side, the central department of platen 1 installs the conversion equipment 7 that makes things convenient for switching between each station when the busbar welding, one side is fixed with symmetrically on platen 1 and has busbar loading attachment 3 of adjusting the structure well, and platen 1 is close to busbar loading attachment 3 one side and is fixed with the laser welder 4 of welding the busbar to electric core tip symmetrically, laser welder 4 is close to conversion equipment 7 one side and is fixed with the closing device 5 that makes the busbar closely paste with electric core when welding, platen 1 one side is fixed with busbar bending device 6 symmetrically.

The device is when using, conversion equipment 7 is sent into with electric core to electric core loading attachment 2, rotation through conversion equipment 7 arrives different processing stations, wherein, when piece loading attachment 3 is converged, carry out the material loading of convergent current piece, convergent current piece and electric core together arrive laser welder 4 station place afterwards, closing device 5 keeps the pressfitting of convergent current piece and electric core, laser welder 4 is welded fastening with both again, the assembly of welded convergent current piece and electric core rotates again and arrives the position that convergent current piece bending apparatus 6 is located, convergent current piece bending apparatus 6 to the convergent current piece shaping of bending can.

Referring to fig. 1, the cell loading device 2, the bus bar loading device 3, the laser welder 4, and the bus bar bending device 6 are all uniformly arranged in a circumferential shape with the conversion device 7 as a center.

Compared with a straight line arrangement mode, the circular arrangement mode has the advantages that the arrangement among the stations is reasonable, the whole structure is more compact, the occupied space is small, and the transition structure among the working procedures is clear.

Referring to fig. 2, the confluence plate feeding device 3 includes an XZ axis linear platform 8, a claw 9, a suction cup 10, a support frame 11, a vibration plate 12, a conveying guide rail 13, a limiting frame 14, a cylinder 15 and a centering assembly 16, wherein the claw 9 is fixed at an output end of the XZ axis linear platform 8, the suction cups 10 are symmetrically installed on a lower surface of the claw 9, the support frame 11 is fixed at one side of the bedplate 1 close to the XZ axis linear platform 8, the vibration plate 12 is fixedly installed on the support frame 11, the conveying guide rail 13 is erected on the support frame 11, one end of the conveying guide rail 13 is communicated with an output port of the vibration plate 12, the limiting frame 14 is fixed at the other end of the conveying guide rail 13, the cylinder 15 is installed at one side of the limiting frame 14, and the centering assembly 16 is fixed at one side of the bedplate 1 close to the XZ axis linear platform 8.

In the bus bar piece feeding device 3, after a plurality of scattered bus bar pieces are adjusted by the vibration disc 12, the bus bar pieces are arranged in the same direction and are uniformly slid into the limiting frame 14 through the conveying guide rail 13, then the bus bar pieces are sequentially pushed to the position right below the claw hand 9 under the action of the air cylinder 15, the claw hand 9 is controlled by the XZ axis linear platform 8 to move, the bus bar pieces are adsorbed by the sucking disc 10 and are transferred into the centering assembly 16, after the alignment of the electric core and the bus bar pieces is completed by the centering assembly 16, the bus bar pieces are transferred to the designated position on the conversion device 7 through the claw hand 9.

Referring to fig. 3, the centering assembly 16 includes a pillar 17, a pneumatic clamping jaw 18 and a positioning plate 19, the pneumatic clamping jaw 18 is fixed to the top end of the pillar 17, and the positioning plate 19 is fixed to the movable ends of the pneumatic clamping jaw 18.

In the centering assembly 16, the pneumatic clamping jaw 18 controls the contraction and expansion of the positioning disc 19, the positioning disc 19 contracts after the bus bar is rotated into the centering assembly 16, the position of the bus bar is adjusted through a three-jaw extrusion positioning mode, the positioning disc 19 is opened when the bus bar is rotated out of the centering assembly 16, the bus bar with the correct position can be smoothly led out, as shown in fig. 1, the centering assembly 16 is always aligned with the centers of a three-jaw centering clamp 22 and a positioning clamping assembly 23 on the conversion device 7, and therefore the bus bar can be kept to enter a welding station together with the accurate butt joint position of a battery cell through the limiting of the centering assembly 16.

The setting of centering subassembly 16 is in fact that the position of carrying out electric core and convergent current piece is adjusted well before carrying out the welding, and the benefit of taking this kind of measure lies in, can guarantee that convergent current piece and electric core position when the welding are adjusted well, and the deviation can not appear in the edge, and the face of being connected after the welding like this can keep straight, and the fastening degree of convergent current piece and electric core laminating is high, and the conduction is smooth and easy, can effectively improve the quality of output battery.

Referring to fig. 4, the switching device 7 includes a turntable 20, a rotating disc 21, a three-jaw centering fixture 22 and a positioning fixture assembly 23, the turntable 20 is mounted at the center of the platen 1, the rotating disc 21 is fixed on the output end of the turntable 20, the three-jaw centering fixture 22 is fixed on the upper surface of the rotating disc 21 at equal intervals, and the positioning fixture assembly 23 is fixed on the rotating disc 21 at equal intervals inside the three-jaw centering fixture 22.

In the conversion device 7, the turntable 20 and the three-jaw centering fixture 22 are both in the prior art, the turntable 20 drives the rotating disc 21 to rotate in a stepping manner, sequential switching among the stations is realized, the three-jaw centering fixture 22 fixes and holds the bottom end of the battery cell, so that the battery cell is kept in an upright state, and the positioning and clamping assembly 23 clamps the position, at which the top end of the battery cell needs to be welded with the confluence piece, and loads the confluence piece.

Referring to fig. 5, the positioning and clamping assembly 23 includes a loading plate 24, a pneumatic sliding table 25, a transition plate 26, a first pneumatic finger 27, a second pneumatic finger 28, a positioning clamping jaw 29 and a groove 30, the pneumatic sliding table 25 is fixed on the top of the loading plate 24, the transition plate 26 is installed on one side of the pneumatic sliding table 25 away from the loading plate 24, the first pneumatic finger 27 is fixed on the upper surface of the transition plate 26, the second pneumatic finger 28 is fixed on one side of the first pneumatic finger 27 away from the transition plate 26, the positioning clamping jaws 29 are fixedly installed on the output ends of the first pneumatic finger 27 and the second pneumatic finger 28, and the groove 30 is opened on the inner side of one end of the positioning clamping jaw 29 close to the three-jaw centering clamp 22.

In the positioning and clamping assembly 23, the first pneumatic finger 27 and the second pneumatic finger 28 are both pneumatic clamps with a rotation range of 180 degrees, the positioning clamping jaw 29 is driven to rotate and clamp the battery cell, before welding, the bus bar piece is placed in the groove 30 on the positioning clamping jaw 29 to be positioned and attached to the battery cell, and the pneumatic sliding table 25 controls the height adjustment of the first pneumatic finger 27 and the second pneumatic finger 28.

The positioning and clamping assembly 23 adopts two sets of pneumatic clamps and a height adjusting structure in a certain range, which provides necessary conditions for the device to adapt to welding of the battery cores and the bus bars with different sizes (mainly, length), and improves the applicability of the device.

The working principle is as follows:

firstly, the cell loading device 2 sends the cell into the conversion device 7;

subsequently, when the battery cell clamped on the conversion device 7 passes through the confluence sheet feeding device 3, feeding of confluence sheets is performed;

then, the bus bar and the battery cell arrive at a station where the laser welding machine 4 is located together, the pressing device 5 keeps the bus bar and the battery cell pressed together, and the laser welding machine 4 welds and fixes the bus bar and the battery cell;

and finally, the welded junction piece and battery cell combination body rotates to reach the station where the junction piece bending device 6 is located, and the junction piece bending device 6 bends and shapes the junction piece.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a battery core bus bar piece welding equipment, includes platen (1) and fixes electric core loading attachment (2) in platen (1) upper surface one side, its characterized in that: the switching device (7) which is convenient for switching among stations during welding of the confluence pieces is installed at the center of the bedplate (1), the confluence piece feeding device (3) with an alignment structure is symmetrically fixed on one side of the bedplate (1), the laser welder (4) which is used for welding the confluence pieces to the end parts of the electric cores is symmetrically fixed on one side of the bedplate (1) close to the confluence piece feeding device (3), the pressing device (5) which is used for tightly attaching the confluence pieces to the electric cores during welding is fixed on one side of the laser welder (4) close to the switching device (7), and the confluence piece bending device (6) is symmetrically fixed on one side of the bedplate (1).

2. The cell bus bar welding apparatus of claim 1, wherein: the cell feeding device (2), the bus bar feeding device (3), the laser welding machine (4) and the bus bar bending device (6) are all uniformly distributed in a circumferential shape by taking the conversion device (7) as a center.

3. The cell bus bar welding device of claim 2, wherein: the confluence plate feeding device (3) comprises an XZ axial linear platform (8), a claw (9), a sucker (10), a support frame (11), a vibration disc (12), a conveying guide rail (13), a limiting frame (14), a cylinder (15) and a centering assembly (16), wherein the claw (9) is fixed at the output end of the XZ axial linear platform (8), the sucker (10) is symmetrically arranged on the lower surface of the claw (9), the support frame (11) is fixed at one side of the bedplate (1) close to the XZ axial linear platform (8), the vibration disc (12) is fixedly arranged on the support frame (11), the conveying guide rail (13) is erected on the support frame (11), one end of the conveying guide rail (13) is communicated with the output port of the vibration disc (12), the limiting frame (14) is fixed at the other end of the conveying guide rail (13), the cylinder (15) is arranged at one side of the limiting frame (14), and a centering assembly (16) is fixed on one side of the bedplate (1) close to the XZ axial linear platform (8).

4. The cell bus bar welding apparatus of claim 3, wherein: centering subassembly (16) include pillar (17), pneumatic clamping jaw (18) and positioning disk (19), the top of pillar (17) is fixed with pneumatic clamping jaw (18), and all fixed mounting has positioning disk (19) on the activity end of pneumatic clamping jaw (18).

5. The cell bus bar welding device of claim 2, wherein: the conversion device (7) comprises a rotary table (20), a rotary disc (21), three-jaw centering clamps (22) and positioning clamping assemblies (23), wherein the rotary table (20) is installed at the center of the bedplate (1), the rotary table (21) is fixed at the output end of the rotary table (20), the three-jaw centering clamps (22) are fixed on the upper surface of the rotary disc (21) at equal intervals, and the positioning clamping assemblies (23) are fixed on the inner side of the three-jaw centering clamps (22) on the rotary disc (21) at equal intervals.

6. The cell bus bar welding apparatus of claim 5, wherein: location centre gripping subassembly (23) is including loading board (24), pneumatic slip table (25), cross cab apron (26), first pneumatic finger (27), the pneumatic finger of second (28), location clamping jaw (29) and recess (30), loading board (24) top is fixed with pneumatic slip table (25), and pneumatic slip table (25) keep away from loading board (24) one side and install cab apron (26), the last fixed surface who crosses cab apron (26) has first pneumatic finger (27), and first pneumatic finger (27) keep away from cab apron (26) one side and be fixed with the pneumatic finger of second (28), equal fixed mounting has location clamping jaw (29) on the output of first pneumatic finger (27) and the pneumatic finger of second (28), location clamping jaw (29) are close to in the three claws that anchor clamps (22) one end inboard is seted up fluted (30).