CN117691167A - Battery cell module production line and battery module production line - Google Patents

Abstract

The invention provides a cell module production line and a battery module production line, comprising: feeding production lines; the pasting production line is arranged at the side part of the feeding production line and comprises a first film tearing mechanism, a film pasting mechanism and a second film tearing mechanism, wherein the first film tearing mechanism comprises a first film tearing robot and a first film tearing clamping jaw, and the first film tearing robot drives the first film tearing clamping jaw to move so as to tear paper at one side of the insulating film away through the first film tearing clamping jaw; the stacking production line is arranged at the downstream of the attaching production line and comprises a first conveying line and a stacking robot; and the welding production line is arranged at the downstream of the stacking production line and comprises a second conveying line and a welding mechanism, the second conveying line is in butt joint with the first conveying line, and the welding mechanism is used for welding the cell module. By the technical scheme provided by the invention, the technical problem of lower production automation degree of the battery cell module in the prior art can be solved.

Description

Battery cell module production line and battery module production line

Technical Field

The invention relates to the technical field of intelligent manufacturing of energy storage products, in particular to a cell module production line and a battery module production line.

Background

At present, in the production process of the battery module in the prior art, a plurality of electric cores are often required to be assembled into an electric core module, and then the electric core modules and a battery box are assembled into the battery module.

However, most of the production processes of the battery modules in the prior art need to be manually participated, and the production automation degree of the battery modules is low. Therefore, on one hand, the manual participation often has the problems of low efficiency and low precision, and on the other hand, the labor cost is increased.

Disclosure of Invention

The invention mainly aims to provide a battery cell module production line and a battery module production line, which are used for solving the technical problem of lower production automation degree of a battery cell module in the prior art.

To achieve the above object, according to one aspect of the present invention, there is provided a cell module production line comprising:

the feeding production line is used for feeding the battery cells to the carrying structure;

the pasting production line is arranged at the side part of the feeding production line and comprises a first film tearing mechanism, a film pasting mechanism and a second film tearing mechanism, wherein the first film tearing mechanism comprises a first film tearing robot and a first film tearing clamping jaw, and the first film tearing robot drives the first film tearing clamping jaw to move so as to tear paper at one side of the insulating film away through the first film tearing clamping jaw; the film pasting mechanism comprises a film pasting robot and a film pasting clamping jaw, and the film pasting robot drives the film pasting clamping jaw to move so as to paste the insulating film on one side face of the battery cell through the film pasting clamping jaw; the second film tearing mechanism comprises a second film tearing robot and a second film tearing clamping jaw, and the second film tearing robot drives the second film tearing clamping jaw to move so as to tear paper on the other side of the insulating film on the battery cell;

The stacking production line is arranged at the downstream of the attaching production line and comprises a first conveying line and a stacking robot, the first conveying line is used for conveying the restraint structure, the stacking robot is movably arranged, the stacking robot is used for transferring the battery cells with the insulating films to the restraint structure to stack the battery cells to form a battery cell module, and the insulating films are arranged between every two adjacent battery cells;

and the welding production line is arranged at the downstream of the stacking production line and comprises a second conveying line and a welding mechanism, the second conveying line is in butt joint with the first conveying line, and the welding mechanism is used for welding the cell module.

Further, the stacking robot includes:

the mechanical arm and the battery cell clamping jaw are movably arranged, and the mechanical arm is in driving connection with the battery cell clamping jaw and drives the battery cell clamping jaw to move so as to clamp the battery cell;

the first visual detection piece is used for detecting the position of the battery cell and the position of the insulating film on the battery cell;

the control piece, arm, electric core clamping jaw and first visual detection spare all are connected with the control piece, and the control piece presss from both sides the electric core and gets and adjust the orientation position of electric core according to the condition that first visual detection spare detected to make the insulating film of a plurality of electric cores all set up towards fixed one side, in order to make all be provided with at least one insulating film between two adjacent electric cores.

Further, the cell module production line also comprises an information management system; the stacking line further includes:

the prepressing mechanism is used for pressurizing two ends of the stacked multiple battery cells; and/or the number of the groups of groups,

the first code scanning mechanism is used for scanning the information codes on the restraint structure and the information codes of the battery cells on the restraint structure, and is connected with the information management system so as to correlate the information of the restraint structure with the information of the battery cells through the information management system; the laser engraving machine is used for carrying out laser engraving information codes on the positioning end plate, the first code scanning mechanism is used for scanning the laser engraving information codes, and information of the positioning end plate and information of the battery cell are associated through the information management system.

Further, the cell module production line also comprises a control system; the welding production line includes position detection equipment, and position detection equipment includes:

the first conveying structure is in butt joint with the first conveying line, forms part of the second conveying line and is used for conveying the restraint structure;

the second visual detection piece is used for detecting the positions of the mark points of the restraint structure;

The third visual detection piece is used for detecting the position of the pole of the battery cell, the third visual detection piece and the second visual detection piece are both connected with the control system, and the control system acquires the relative coordinates of each battery cell relative to the mark point according to the position detected by the third visual detection piece and the information detected by the second visual detection piece;

the driving structure is connected with the second visual detection piece and the third visual detection piece, the driving structure is connected with the control system, and the control system controls the driving of the driving structure according to the detection results of the second visual detection piece and the third visual detection piece.

Further, the welding production line further comprises an assembling device, wherein the assembling device is arranged at the downstream of the position detecting device; the assembly device includes:

the second conveying structure is in butt joint with the first conveying structure, the second conveying structure forms part of a second conveying line, and the second conveying structure is used for conveying the restraint structure;

the assembly structure is characterized in that an assembly clamping jaw of the assembly structure is movably arranged, and is used for clamping the top cover and placing the top cover on the top of the battery cell module;

and the assembly driving piece is connected with the control system, and the control system controls the assembly clamping jaw according to the information detected by the second visual detection piece and the third visual detection piece so that the hollowed-out part on the top cover is prevented from being set up by the pole piece of the battery cell.

Further, the welding mechanism includes a first welding device disposed downstream of the assembly device; the first welding apparatus includes:

the third conveying structure is in butt joint with the second conveying structure, forms part of the second conveying line and is used for conveying the restraint structure;

the fourth visual detection piece is used for detecting the positions of the mark points of the restraint structure;

the first welding structure is used for welding the connecting row placed at the hollowed-out part, and is connected with the control system, so that the control system adjusts the welding position of the first welding structure according to the position information detected by the second visual detection piece and the third visual detection piece.

Further, the cell module production line also comprises an information management system; the welding mechanism further includes:

the cleaning device is arranged at the downstream of the first welding device and comprises a fourth conveying structure and a purging structure, the fourth conveying structure is in butt joint with the third conveying structure, the fourth conveying structure forms part of a second conveying line, and the fourth conveying structure is used for conveying the restraint structure; the purging structure is arranged towards the restraining structure on the fourth transportation structure and is used for purging the welding part of the battery cell module;

The first detection device is arranged at the downstream of the cleaning device and comprises a fifth conveying structure and a first detection structure, the fifth conveying structure is in butt joint with the fourth conveying structure, the fifth conveying structure forms part of a second conveying line, and the fifth conveying structure is used for conveying the restraint structure; the first detection structure is arranged towards a restraint structure on the fifth transportation structure, the first detection structure is used for detecting performance parameters of the battery cell module, the first detection structure is connected with the information management system, and the first detection structure is used for uploading detected information to the information management system.

Further, the welding mechanism includes a second welding device disposed downstream of the first welding device; the second welding apparatus includes:

a sixth transport structure, the sixth transport structure interfacing with the fifth transport structure, the sixth transport structure forming part of the second conveyor line;

the fifth visual detection piece is used for detecting the positions of the mark points of the restraint structure;

the second welding structure is used for welding the connecting sheet on the connecting row, and the second welding structure is connected with the control system so that the control system can adjust the welding position of the second welding structure according to the position information detected by the second visual detection piece and the third visual detection piece.

Further, the welding production line further includes:

the second detection device is arranged at the downstream of the second welding device and comprises a seventh conveying structure and a second detection structure, the seventh conveying structure is in butt joint with the sixth conveying structure, the seventh conveying structure forms a part of a second conveying line, and the seventh conveying structure is used for conveying the restraint structure; the second detection structure is arranged towards the seventh transportation structure and is used for detecting the discharge power of the battery cell module, the second detection structure is connected with the information management system, and the second detection structure is used for uploading detected information to the information management system;

the replacement equipment is arranged at the downstream of the second detection equipment and is connected with the information management system, and comprises an eighth conveying structure and a replacement conveying structure, the eighth conveying structure is in butt joint with the seventh conveying structure, the eighth conveying structure forms part of the second conveying line, and the eighth conveying structure is used for conveying the restraint structure; the replacement transportation structure is movably arranged, the transportation direction of the replacement transportation structure is arranged at a preset angle with the transportation direction of the eighth transportation structure, and the replacement transportation structure is used for carrying out offline operation on the unqualified cell module on the eighth transportation structure.

According to another aspect of the present invention, there is provided a battery module production line including:

the cell module production line is provided;

and the assembly production line is used for assembling the cell module in the battery box.

Further, the assembly line includes:

the tool table is used for placing the battery box and removing a box cover of the battery box at the tool table;

the tool assembly is arranged at the downstream of the tool table and is used for supporting the box body of the battery box, and a connecting structure, a switch and an insulating film are sequentially arranged on the box body at the tool assembly;

and the dispensing equipment is arranged at the downstream of the tool assembly and used for dispensing the bottom of the box body and installing the cell module in the box body after dispensing.

By applying the technical scheme of the invention, the battery cells can be conveniently stacked into the battery cell module by utilizing the feeding production line, the attaching production line, the stacking production line and the welding production line, and the battery cell module is welded, most of the production lines are realized by adopting an automatic operation process flow, so that the production automation degree of the battery cell module is greatly improved, and the production efficiency of the battery cell module is improved.

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 invention. In the drawings:

fig. 1 shows a schematic view of a portion of a cell module line according to an embodiment of the present invention;

figure 2 shows a schematic view of a portion of the cell module line downstream of figure 1;

figure 3 shows a schematic view of a portion of the cell module line downstream of figure 2;

figure 4 shows a schematic view of a portion of the cell module line downstream of figure 3;

figure 5 shows a schematic view of a portion of the cell module line downstream of figure 4;

figure 6 shows a schematic view of a portion of the cell module line downstream of figure 5;

figure 7 shows a schematic view of a portion of the cell module line downstream of figure 6;

figure 8 shows a schematic view of a portion of the cell module line downstream of figure 7;

fig. 9 shows a schematic structural view of an assembly line of the battery module production line located downstream of fig. 8.

Wherein the above figures include the following reference numerals:

10. feeding production lines; 11. unpacking robot; 12. a gantry transplanting machine;

20. Sticking a production line; 21. a first film tearing mechanism; 22. a film pasting mechanism; 23. a second film tearing mechanism; 231. a second film tearing robot; 24. the cell code scanning and detecting mechanism;

30. a stacking production line; 31. a first conveyor line; 32. stacking robots; 321. a mechanical arm; 322. a cell clamping jaw; 323. a control member; 33. a transfer robot; 34. a pre-pressing mechanism; 35. a laser engraving machine;

40. a welding production line; 41. a second conveyor line; 42. a welding mechanism; 421. a first welding device; 4211. a third transport structure; 4212. a fourth visual inspection member; 4213. a first welded structure; 422. a cleaning device; 423. a first detection device; 424. a second welding device; 4241. a sixth transport structure; 4242. a fifth visual inspection member; 4243. a second welded structure; 425. a second detection device; 4251. a seventh transport structure; 4252. a second detection structure; 426. replacing the equipment; 4261. an eighth transport structure; 4262. replacing the transport structure; 43. a position detection device; 431. a first transport structure; 432. a driving structure; 44. assembling equipment; 441. a second transport structure;

50. a restraint structure;

60. a battery cell module; 61. a battery cell; 62. positioning an end plate;

70. An assembly production line; 71. a tooling table; 72. a tooling assembly; 73. dispensing equipment;

80. a carrying structure;

90. a manual assembly production line;

100. and a battery box.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.

As shown in fig. 1 to 8, an embodiment of the present invention provides a cell module production line, which includes a loading production line 10, a pasting production line 20, a stacking production line 30, and a welding production line 40, wherein the loading production line 10 is used for loading cells 61 onto a carrying structure 80. Subsides are established production line 20 and are set up the lateral part at material loading production line 10, subsides are established production line 20 and are included first dyestripping mechanism 21, pad pasting mechanism 22 and second dyestripping mechanism 23, and first dyestripping mechanism 21 includes first dyestripping robot and first dyestripping clamping jaw, and first dyestripping robot drives first dyestripping clamping jaw motion to tear the section paper of one side of insulating film through first dyestripping clamping jaw. The film pasting mechanism 22 comprises a film pasting robot and a film pasting clamping jaw, and the film pasting robot drives the film pasting clamping jaw to move so as to paste the insulating film on one side face of the battery cell 61 through the film pasting clamping jaw; the second film tearing mechanism 23 comprises a second film tearing robot 231 and a second film tearing clamping jaw, and the second film tearing robot 231 drives the second film tearing clamping jaw to move so as to tear paper on the other side of the insulating film on the battery cell 61. The stacking production line 30 is disposed at the downstream of the attaching production line 20, the stacking production line 30 includes a first conveying line 31 and a stacking robot 32, the first conveying line 31 is used for conveying the restraint structure 50, the stacking robot 32 is movably disposed, the stacking robot 32 is used for transferring the battery cells 61 with the insulating film to the restraint structure 50 to stack the battery cells to form the battery cell group 60, and insulating films are disposed between two adjacent battery cells 61. The welding line 40 is disposed downstream of the stacking line 30, and the welding line 40 includes a second conveyor line 41 and a welding mechanism 42, the second conveyor line 41 being in butt joint with the first conveyor line 31, the welding mechanism 42 being for welding the cell module 60.

By adopting the structure, the battery core 61 can be conveniently stacked into the battery core module 60 by the feeding production line 10, the attaching production line 20, the stacking production line 30 and the welding production line 40, and the battery core module 60 is welded, most of the production lines are realized by adopting an automatic operation process flow, so that the production automation degree of the battery core module 60 is greatly improved, and the production efficiency of the battery core module 60 is improved. Therefore, the technical problem of low production automation degree of the cell module 60 in the prior art can be solved by adopting the structure.

Specifically, the feeding production line 10 includes an unpacking robot 11 and a gantry transplanter 12, where the unpacking robot 11 is used to split the packaged battery stack into independent battery cells 61, and perform a feeding operation on the battery cells 61 through the gantry transplanter 12. The attaching production line 20 further comprises a battery cell code scanning and detecting mechanism 24, and the battery cell code scanning and detecting mechanism 24 is used for scanning and binding the battery cell 61 and performing primary detection on the battery cell 61.

In this embodiment, the stacking robot 32 includes a mechanical arm 321, a battery core clamping jaw 322, a first visual detection member and a control member 323, where the mechanical arm 321 is movably disposed, the mechanical arm 321 is in driving connection with the battery core clamping jaw 322, and the mechanical arm 321 drives the battery core clamping jaw 322 to move so as to clamp the battery core 61. The first visual inspection piece is used for being connected with the control piece 323 to the position of electric core 61 and the position of the insulating film on electric core 61, arm 321, electric core clamping jaw 322 and first visual inspection piece, and control piece 323 presss from both sides the electric core 61 and carries out the adjustment to the orientation position of electric core 61 according to the condition that first visual inspection piece detected to make the insulating film of a plurality of electric cores 61 all set up towards fixed one side, so that all be provided with at least one insulating film between two adjacent electric cores 61. By adopting the structure, a plurality of electric cores 61 can be conveniently and effectively bonded through the insulating films, and at least one insulating film is arranged between every two adjacent electric cores 61, so that the insulating performance between every two adjacent electric cores 61 is better ensured.

Specifically, the cell module production line further comprises an information management system. The stacking production line 30 further comprises a pre-pressing mechanism 34, the pre-pressing mechanism 34 is used for pressing two ends of the stacked multiple battery cells 61, so that the battery cells 61 and the insulating films can be conveniently and better bonded, the bonding stability of the battery cells 61 and the insulating films is ensured, and the stable structure of the battery cell module 60 is conveniently formed.

In this embodiment, the stacking production line 30 further includes a first code scanning mechanism and a laser imprinter 35, where the first code scanning mechanism is used for scanning information codes on the restraint structure 50 and information codes of the battery cells 61 on the restraint structure 50, and the first code scanning mechanism is connected with the information management system to associate information of the restraint structure 50 with information of the battery cells 61 through the information management system; the laser engraving machine 35 is used for carrying out laser engraving information codes on the positioning end plate 62, and the first code scanning mechanism is used for scanning the laser engraving information codes and correlating the information of the positioning end plate 62 with the information of the battery cell 61 through the information management system. By adopting the structure, the information traceability can be conveniently realized, the unqualified battery cells 61 can be conveniently and timely obtained, and the unqualified battery cells 61 are removed, so that the qualification rate of the battery cell module 60 is conveniently and well ensured.

Specifically, the stacking line 30 further includes a transfer robot 33 to transfer the stacked plurality of cells 61 by the transfer robot 33.

Specifically, the cell module production line further comprises a control system; the welding production line 40 comprises a position detection device 43, the position detection device 43 comprises a first transportation structure 431, a second visual detection piece, a third visual detection piece and a driving structure 432, the first transportation structure 431 is in butt joint with the first conveying line 31, the first transportation structure 431 forms part of the second conveying line 41, and the first transportation structure 431 is used for transporting the restraint structure 50. The second visual detection element is used for detecting the position of the marker point of the restraint structure 50. The third visual detection piece is used for detecting the position of the pole of the battery core 61, the third visual detection piece and the second visual detection piece are both connected with the control system, and the control system obtains the relative coordinates of each battery core 61 relative to the mark point according to the position detected by the third visual detection piece and the information detected by the second visual detection piece. The driving structure 432 is connected with the second visual detection member and the third visual detection member, the driving structure 432 is connected with the control system, and the control system controls the driving of the driving structure 432 according to the detection results of the second visual detection member and the third visual detection member. By adopting the structure, the relative positions of the poles of the battery cells 61 of the battery cell module 60 relative to the reference point can be conveniently and better confirmed, so that the absolute positions of the battery cells 61 can be conveniently and quickly obtained according to the positions of the reference points of the restraint structure 50, and the operations such as cleaning, welding and the like can be conveniently and quickly carried out.

In the present embodiment, the welding line 40 further includes an assembling device 44, the assembling device 44 being disposed downstream of the position detecting device 43; the assembly device 44 includes a second transporting structure 441, an assembly structure, and an assembly driving piece, the second transporting structure 441 is abutted with the first transporting structure 431, the second transporting structure 441 forms a part of the second conveying line 41, and the second transporting structure 441 is used for transporting the restraint structure 50. The assembly jaws of the assembly structure are movably disposed and are used to grip the cap and place the cap on top of the cell module 60. The assembly driving piece is connected with a control system, and the control system controls the assembly clamping jaw according to information detected by the second visual detection piece and the third visual detection piece so that the hollowed-out part on the top cover avoids the pole piece arrangement of the battery cell 61. By adopting the structure, the top cover can be conveniently and accurately placed at the corresponding position, so that the hollowed-out part of the top cover can effectively avoid the pole pieces of the plurality of battery cells 61, and the follow-up accuracy of pole piece welding is facilitated.

Specifically, the welding mechanism 42 in the present embodiment includes a first welding device 421, and the first welding device 421 is disposed downstream of the assembling device 44. The first welding device 421 includes a third transporting structure 4211, a fourth visual inspection member 4212, and a first welding structure 4213, the third transporting structure 4211 is in butt joint with the second transporting structure 441, the third transporting structure 4211 forms a part of the second conveying line 41, and the third transporting structure 4211 is used for transporting the restraint structure 50. The fourth visual detection member 4212 is used for detecting the position of the marker point of the restraint structure 50. The first welding structure 4213 is used for welding the connecting row placed at the hollowed-out part, and the first welding structure 4213 is connected with the control system, so that the control system adjusts the welding position of the first welding structure 4213 according to the position information detected by the second visual detection piece and the third visual detection piece. By adopting the structure, the connecting rows can be conveniently and rapidly welded, and the welding accuracy is ensured. In particular, the connection bars may be aluminum bars.

In this embodiment, the cell module production line further includes an information management system. The welding mechanism 42 further comprises a cleaning device 422 and a first detecting device 423, the cleaning device 422 being arranged downstream of the first welding device 421, the cleaning device 422 comprising a fourth transporting structure and a purging structure, the fourth transporting structure being in butt joint with the third transporting structure 4211, the fourth transporting structure forming part of the second conveying line 41, the fourth transporting structure being for transporting the restraining structure 50; the purge structure is disposed toward the upper restraint structure 50 of the fourth transport structure and is configured to purge the weld of the cell module 60. The first detection device 423 is disposed downstream of the cleaning device 422, the first detection device 423 including a fifth transport structure and a first detection structure, the fifth transport structure being in butt joint with the fourth transport structure, the fifth transport structure forming part of the second conveyor line 41, the fifth transport structure being for transporting the restraining structure 50; the first detection structure is set towards the restraint structure 50 on the fifth transport structure, and is used for detecting performance parameters of the cell module 60, the first detection structure is connected with the information management system, and the first detection structure is used for uploading detected information to the information management system. By adopting the structure, more accurate pole pieces of the battery cells 61 can be conveniently cleaned, so that the cleaning accuracy of the pole pieces of the battery cells 61 is ensured, and the welding residues are effectively blown away. In addition, the first detection structure is used for detecting performance parameters such as voltage, insulation and voltage resistance of the cell module 60, so as to ensure welding quality of the welded cell module 60.

Specifically, the welding mechanism 42 includes a second welding device 424, the second welding device 424 being disposed downstream of the first welding device 421; the second welding apparatus 424 comprises a sixth transport structure 4241 and a fifth visual inspection member 4242, the sixth transport structure 4241 being docked with the fifth transport structure, the sixth transport structure 4241 forming part of the second conveyor line 41. The fifth visual detection member 4242 is used for detecting the position of the marker point of the restraint structure 50. The second welding structure 4243 is used for welding the connecting piece on the connecting row, and the second welding structure 4243 is connected with the control system, so that the control system adjusts the welding position of the second welding structure 4243 according to the position information detected by the second visual detection piece and the third visual detection piece. By adopting the structure, the connecting sheet can be welded on the connecting row conveniently and better.

In this embodiment, the welding production line 40 further includes a second detection device 425, the second detection device 425 being disposed downstream of the second welding device 424, the second detection device 425 including a seventh transport structure 4251 and a second detection structure 4252, the seventh transport structure 4251 being in butt joint with the sixth transport structure 4241, the seventh transport structure 4251 forming part of the second conveyor line 41, the seventh transport structure 4251 being for transporting the containment structure 50; the second detecting structure 4252 is disposed towards the seventh transporting structure 4251, the second detecting structure 4252 is used for detecting the discharge power of the cell module 60, the second detecting structure 4252 is connected with the information management system, and the second detecting structure 4252 is used for uploading the detected information to the information management system. With such a structural arrangement, the qualification performance of the cell module 60 for inspection can be effectively ensured.

In this embodiment, the welding line 40 further includes a replacement device 426, the replacement device 426 is disposed downstream of the second detection device 425, the replacement device 426 is connected to the information management system, the replacement device 426 includes an eighth transport structure 4261 and a replacement transport structure 4262, the eighth transport structure 4261 is in butt joint with the seventh transport structure 4251, the eighth transport structure 4261 forms a part of the second conveying line 41, and the eighth transport structure 4261 is used for transporting the restraint structure 50; the replacement transport structure 4262 is movably disposed, the transport direction of the replacement transport structure 4262 is set at a preset angle with the transport direction of the eighth transport structure 4261, and the replacement transport structure 4262 is used for performing the offline operation on the failed battery cell module 60 on the eighth transport structure 4261. By adopting the structure, unqualified battery cell modules 60 can be removed conveniently and effectively, unqualified battery cell modules 60 are prevented from entering subsequent processes, and process waste is avoided.

Specifically, the cell module production line in this embodiment further includes a manual assembly production line 90, where the manual assembly production line 90 is disposed in the welding production line 40, and the manual assembly production line 90 is used for manually installing structures such as a heat insulating member, a heating member, and a coaming, where the heat insulating member may be heat insulating cotton, and the heating member may be heating cotton.

As shown in fig. 9, a second embodiment of the present invention provides a battery module production line, which includes the battery cell module production line provided in the foregoing embodiment and an assembly production line 70, where the assembly production line 70 is used for assembling the battery cell module 60 in the battery box 100.

In the present embodiment, the assembly line 70 includes a tooling table 71, a tooling assembly 72, and a dispensing device 73, wherein the tooling table 71 is used for placing the battery box 100, and the cover of the battery box 100 is removed at the tooling table 71. The tooling assembly 72 is arranged at the downstream of the tooling table 71, the tooling assembly 72 is used for supporting the box body of the battery box 100, and a connecting structure, a switch and an insulating film are sequentially arranged on the box body at the tooling assembly 72; the dispensing device 73 is arranged at the downstream of the tooling assembly 72, and the dispensing device 73 is used for dispensing glue to the bottom of the box body and installing the cell module 60 in the box body after dispensing glue. With such a structural arrangement, the cell module 60 can be conveniently and better assembled to facilitate better formation of the battery module structure.

In particular, the assembly line 70 may be a manual line through which individual components may be installed in steps.

The specific operation steps of the module production part of the production method of the battery module provided in the embodiment include:

The unpacking and feeding of the battery cell 61 is composed of a robot carrying clamp, a four-station roller conveying line, a foam board transplanting manipulator, a double-station battery cell 61 transfer table and a visual detection system, and the problem of full-automatic unpacking and feeding of the battery cell 61 is solved.

For feeding by means of a gantry transplanter 12. The gantry transplanter 12 includes a gantry frame, an X/Y transplanting robot. The process of carrying the battery core 61 on the double-speed chain carrier is completed, so that the problem that the manual battery carrying is time-consuming and labor-consuming is solved.

And (5) performing code scanning, OCV detection (open circuit voltage detection) and disqualified cell replacement. Parameters such as insulation voltage resistance and voltage of the battery cells 61 are detected, and defective battery cells 61 are removed and replaced. Comprises an electric core 61 detector, a multi-station probe, a probe and a replacing manipulator. Through the operation, the multi-station automatic detection replacement can be conveniently finished.

And (5) operating by adopting a large-surface rubberizing machine and a tearing paper machine. Specifically, the insulating PC film (insulating film) is attached to the surface of the cell 61, that is, the attaching work of the insulating layer is completed. The device adopted in the process step comprises a rubberizing manipulator, a release paper tearing mechanism, a vision system and the like, and the automatic rubberizing process is completed through the automatic matching of the device.

And then performing module stacking. The individual cells 61 are subjected to a string stacking process. The assembly from the single cell 61 to the string cell 61 is completed. The device consists of three sets of feeding and discharging robots, clamping jigs, an end plate feeding assembly and a discharging clamping jig;

then, the stacked battery cell 61 strings are pressed and restrained by a pressing restraint machine (corresponding to a pre-pressing mechanism), so that the battery cell strings 61 are tightly adhered and connected into a string.

Then, the laser engraving machine 35 performs online laser engraving to complete two-dimensional code laser engraving on the upper portion of the end plate, so as to realize full-automatic online engraving.

And then, installing coaming and transplanting and carrying are carried out so as to mainly finish transplanting the battery cells 61 in the strings, and the strings are changed into double strings from single strings, thereby facilitating subsequent welding.

And then, carrying out automatic pole addressing, top cover and bar sheet installation, and reducing the burden of the subsequent automatic welding process through the front pole addressing. And the welding efficiency of the welding machine is increased. The welding is mainly completed through a vision system, a height measurement sensor and a triaxial mechanical arm 321 thereof so as to improve the welding efficiency.

And the insulation voltage withstand test is used for detecting the welding completion condition through the single-module insulation voltage withstand test, so that poor welding and missing welding and cold welding are prevented.

The bonding machine comprises a robot, a welding jig, a welding head, a vibrating lens and the like. The welding penetration can be detected in real time while the welding is completed fully automatically, the welding false welding is prevented, and the yield is increased or decreased.

And then, performing post-welding cleaning detection and rechecking, and performing a series of detection on the welded product. And the poor welding is radically avoided. And respectively detecting parameters such as insulation withstand voltage, voltage and the like and a standard value for comparison.

Subsequently, nickel sheet mounting and harness finishing are performed. And an integrated CCS aluminum row is assembled, so that automatic feeding and assembly are realized.

Subsequently, nickel sheet welding was performed. The welding of the nickel sheet is completed, and the welding device consists of a robot, a welding jig, a welding head, a vibrating lens and the like. The welding penetration can be detected in real time while the welding is completed fully automatically, the welding false welding is prevented, and the yield is increased or decreased.

Specifically, the post-weld cleaning inspection is the same as the above cleaning inspection process.

Subsequently, the insulating sheet mounting is performed. To prevent the occurrence of accidental hazards such as short circuits, vibration, drop, etc. The upper part is provided with an insulating sheet. Mainly comprises a triaxial mechanical arm 321 and an adsorption component.

And (5) loading the box body and dismantling the top cover. The automatic loading user stores Pack boxes (corresponding to the battery boxes 100) and removes the top cover. The connection structure is then installed, the connection structure including an aerial plug and a connector, to connect with external wiring through the connection structure. And (5) completing the preliminary assembly of the box body.

And assembling a starting switch, a PET (polyethylene terephthalate) film, an insulating terminal, a copper bar, a BMU (battery management system) and a lamp panel assembly in sequence.

And gluing the bottom of the box body and putting the module into the box. The bottom of the household Pack box is glued by a triaxial glue applicator (corresponding to the glue dispensing device 73). And then the battery module is prevented from being in the box body by the robot and the clamping jig. And pre-pressing the assembled battery module to make the battery module fully firmly adhered.

The wire harness connector, the BMU, the radiator and the top cover are sequentially installed. And finally, automatically taking the Pack finished product (corresponding to the battery module) off line.

From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: for welding of the cell module 60, detection procedures are set before and after, so that welding defective products can be effectively prevented from flowing into products; the multiple working procedures are not mutually conflicting, can be orderly completed according to the working procedures, and are suitable for automatic production of the assembly line; the material distribution in the production flow is relatively uniform, and the situation that the material accumulation is excessive in a single link and the variety is complex is avoided; each production link of the household battery product is accurately arranged, and the specific time of each procedure is controlled, so that the whole production flow is smooth; the assembly of each link is relatively independent, and the assembly can be orderly completed according to steps, so that the influence on the subsequent process caused by the error of the previous step is reduced; the production process is combined with the automation depth, so that the ordered production of the household storage battery products is ensured. The design of the full-automatic integrated household Pack product production line is finished, and is different from the traditional semi-automatic or manual production line; the automatic addressing and the welding station are separately designed, so that the welding efficiency is doubled; the welding yield and the welding efficiency are obviously improved by having multiple detection before and after welding.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.

The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (11)

1. A cell module production line comprising:

the feeding production line (10), the feeding production line (10) is used for feeding the battery cells (61) onto the carrying structure (80);

the laminating production line (20) is arranged at the side part of the feeding production line (10), the laminating production line (20) comprises a first film tearing mechanism (21), a film laminating mechanism (22) and a second film tearing mechanism (23), the first film tearing mechanism (21) comprises a first film tearing robot and a first film tearing clamping jaw, and the first film tearing robot drives the first film tearing clamping jaw to move so as to tear paper at one side of an insulating film through the first film tearing clamping jaw; the film pasting mechanism (22) comprises a film pasting robot and a film pasting clamping jaw, and the film pasting robot drives the film pasting clamping jaw to move so as to paste the insulating film on one side face of the battery cell (61) through the film pasting clamping jaw; the second film tearing mechanism (23) comprises a second film tearing robot (231) and a second film tearing clamping jaw, and the second film tearing robot (231) drives the second film tearing clamping jaw to move so as to tear paper on the other side of the insulating film on the electric core (61);

The stacking production line (30) is arranged at the downstream of the attaching production line (20), the stacking production line (30) comprises a first conveying line (31) and a stacking robot (32), the first conveying line (31) is used for conveying the restraint structure (50), the stacking robot (32) is movably arranged, the stacking robot (32) is used for transferring the battery cells (61) with the insulating films to the restraint structure (50) to be stacked to form battery cell groups (60), and the insulating films are arranged between two adjacent battery cells (61);

welding production line (40) set up the low reaches of stacking production line (30), welding production line (40) include second transfer chain (41) and welding mechanism (42), second transfer chain (41) with first transfer chain (31) dock, welding mechanism (42) are used for right electric core module (60) welds.

2. The cell module production line of claim 1, wherein the stacking robot (32) comprises:

the mechanical arm (321) and the battery cell clamping jaw (322) are movably arranged, the mechanical arm (321) is in driving connection with the battery cell clamping jaw (322), and the mechanical arm (321) drives the battery cell clamping jaw (322) to move so as to clamp the battery cell (61);

A first visual inspection member for inspecting a position of the battery cell (61) and a position of an insulating film on the battery cell (61);

control spare (323), arm (321) electric core clamping jaw (322) with first visual detection spare all with control spare (323) are connected, control spare (323) are according to the condition that first visual detection spare detected is got electric core (61) clamp and is right electric core (61) orientation position is adjusted, so that a plurality of electric core (61) insulating film all sets up towards fixed one side, so that adjacent two all be provided with at least one between electric core (61) insulating film.

3. The cell module line of claim 1, further comprising an information management system; the stacking line (30) further comprises:

a pre-pressing mechanism (34), wherein the pre-pressing mechanism (34) is used for pressurizing two ends of the stacked multiple battery cells (61); and/or the number of the groups of groups,

the first code scanning mechanism is used for scanning information codes on the restraint structure (50) and information codes of the battery cells (61) on the restraint structure (50), and is connected with the information management system so as to correlate the information of the restraint structure (50) with the information of the battery cells (61) through the information management system; the laser engraving machine (35) is used for carrying out laser engraving information codes on the positioning end plate (62), the first code scanning mechanism is used for scanning the laser engraving information codes, and the information of the positioning end plate (62) and the information of the battery cell (61) are associated through the information management system.

4. The cell module line of claim 1, further comprising a control system; the welding line (40) comprises a position detection device (43), the position detection device (43) comprising:

-a first transport structure (431), the first transport structure (431) being in abutment with the first conveyor line (31), the first transport structure (431) forming part of the second conveyor line (41), the first transport structure (431) being for transporting the restraining structure (50);

the second visual detection piece is used for detecting the position of the mark point of the restraint structure (50);

the third visual detection piece is used for detecting the position of the pole of the battery cell (61), the third visual detection piece and the second visual detection piece are both connected with the control system, and the control system acquires the relative coordinates of each battery cell (61) relative to the mark point according to the position detected by the third visual detection piece and the information detected by the second visual detection piece;

the driving structure (432), the driving structure (432) with the second vision detection piece with the setting is all connected to the third vision detection piece, the driving structure (432) with control system is connected, control system is according to the detection result of second vision detection piece with the third vision detection piece is controlled the drive of driving structure (432).

5. The cell module production line according to claim 4, characterized in that the welding production line (40) further comprises an assembly device (44), the assembly device (44) being arranged downstream of the position detection device (43); the assembly device (44) comprises:

a second transport structure (441) interfacing with the first transport structure (431), the second transport structure (441) forming part of the second conveyor line (41), the second transport structure (441) being for transporting the containment structure (50);

the assembly structure is provided with an assembly clamping jaw movably, and the assembly clamping jaw is used for clamping a top cover and placing the top cover on the top of the battery cell module (60);

the assembly driving piece is connected with the control system, and the control system controls the assembly clamping jaw according to the information detected by the second visual detection piece and the third visual detection piece, so that the hollowed-out part on the top cover is prevented from being set up by the pole piece of the battery cell (61).

6. The cell module production line according to claim 5, characterized in that the welding mechanism (42) comprises a first welding device (421), the first welding device (421) being arranged downstream of the assembly device (44); the first welding device (421) comprises:

-a third transport structure (4211), said third transport structure (4211) being in abutment with said second transport structure (441), said third transport structure (4211) forming part of said second conveyor line (41), said third transport structure (4211) being for transporting said containment structure (50);

a fourth visual detection member (4212), wherein the fourth visual detection member (4212) is used for detecting the position of the mark point of the restraint structure (50);

the first welding structure (4213), the first welding structure (4213) is used for welding the connecting row placed at the hollowed-out part, the first welding structure (4213) is connected with the control system, and the control system adjusts the welding position of the first welding structure (4213) according to the position information detected by the second visual detection piece and the third visual detection piece.

7. The cell module line of claim 6, further comprising an information management system; the welding mechanism (42) further includes:

a sweeping device (422) arranged downstream of the first welding device (421), the sweeping device (422) comprising a fourth transport structure and a purge structure, the fourth transport structure being in abutment with the third transport structure (4211), the fourth transport structure forming part of the second conveyor line (41), the fourth transport structure being for transporting the containment structure (50); the purging structure is arranged towards the restraining structure (50) on the fourth transportation structure and is used for purging the welding part of the battery cell module (60);

A first detection device (423) arranged downstream of the cleaning device (422), the first detection device (423) comprising a fifth transport structure (4231) and a first detection structure (4232), the fifth transport structure (4231) being in abutment with the fourth transport structure, the fifth transport structure (4231) forming part of the second conveyor line (41), the fifth transport structure (4231) being for transporting the restraining structure (50); the first detection structure (4232) is arranged towards the restraint structure (50) on the fifth transportation structure (4231), the first detection structure (4232) is used for detecting performance parameters of the battery cell module (60), the first detection structure (4232) is connected with the information management system, and the first detection structure (4232) is used for uploading detected information to the information management system.

8. The cell module production line of claim 7 wherein the welding mechanism (42) comprises a second welding device (424), the second welding device (424) being disposed downstream of the first welding device (421); the second welding apparatus (424) comprises:

-a sixth transport structure (4241), said sixth transport structure (4241) being in abutment with said fifth transport structure (4231), said sixth transport structure (4241) forming part of said second conveyor line (41);

A fifth visual detection member (4242), wherein the fifth visual detection member (4242) is used for detecting the position of the mark point of the restraint structure (50);

and the second welding structure (4243) is used for welding the connecting sheet on the connecting row, and the second welding structure (4243) is connected with the control system so that the control system can adjust the welding position of the second welding structure (4243) according to the position information detected by the second visual detection piece and the third visual detection piece.

9. The cell module line of claim 8, wherein the welding line (40) further comprises:

-a second detection device (425) arranged downstream of the second welding device (424), the second detection device (425) comprising a seventh transport structure (4251) and a second detection structure (4252), the seventh transport structure (4251) being in abutment with the sixth transport structure (4241), the seventh transport structure (4251) forming part of the second conveyor line (41), the seventh transport structure (4251) being for transporting the restraining structure (50); the second detection structure (4252) is arranged towards the seventh transportation structure (4251), the second detection structure (4252) is used for detecting the discharge power of the battery cell module (60), the second detection structure (4252) is connected with the information management system, and the second detection structure (4252) is used for uploading detected information to the information management system;

-a replacement device (426) arranged downstream of the second detection device (425), the replacement device (426) being connected to the information management system, the replacement device (426) comprising an eighth transport structure (4261) and a replacement transport structure (4262), the eighth transport structure (4261) being in abutment with the seventh transport structure (4251), the eighth transport structure (4261) forming part of the second conveyor line (41), the eighth transport structure (4261) being for transporting the containment structure (50); the replacement transportation structure (4262) is movably arranged, the transportation direction of the replacement transportation structure (4262) and the transportation direction of the eighth transportation structure (4261) are arranged at a preset angle, and the replacement transportation structure (4262) is used for carrying out offline operation on the unqualified battery cell modules (60) on the eighth transportation structure (4261).

10. A battery module production line, characterized by comprising:

the cell module line of any one of claims 1 to 9;

an assembly line (70), the assembly line (70) being used to assemble the cell module (60) within the battery case (100).

11. The battery module production line according to claim 10, characterized in that the assembly production line (70) includes:

The tool table (71), wherein the tool table (71) is used for placing the battery box (100) and dismantling a box cover of the battery box (100) at the tool table (71);

the tool assembly (72) is arranged at the downstream of the tool table (71), and the tool assembly (72) is used for supporting the box body of the battery box (100) and sequentially installing a connecting structure, a switch and an insulating film on the box body at the tool assembly (72);

and the dispensing equipment (73) is arranged at the downstream of the tool assembly (72), and the dispensing equipment (73) is used for dispensing the bottom of the box body and mounting the cell module (60) in the box body after dispensing.