Automatic stacking equipment for energy storage lithium battery modules

Abstract

The invention relates to the technical field of lithium battery production, and discloses automatic stacking equipment for energy storage lithium battery modules. Comprising a rack as well as a pretreatment device, a first conveying line, a second conveying line, a third conveying line, a fourth conveying line, a transfer device, a glue tearing and sticking device, a pre-stacking device, a component feeding device, a stacking and pressurizing device and a discharging device which are arranged on the rack, the transferring device is used for transferring the pretreated battery cell to the second conveying line or the fourth conveying line, or overturning the pretreated battery cell by 180 degrees and transferring the pretreated battery cell to the third conveying line, and the glue tearing and sticking device is used for stripping a layer of release paper of a glue pad and sticking the glue pad on the battery cell of the second conveying line and / or the third conveying line. The pre-stacking device is used for grabbing the battery cells of the second conveying line, the third conveying line or the fourth conveying line and transferring the battery cells to the second conveying line or the third conveying line. According to the invention, the problems of how to automatically produce different battery modules and how to flexibly adapt to the rubberizing requirements of the different battery modules can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of lithium battery production, and in particular to an automatic stacking device for energy storage lithium battery modules. Background Art

[0002] With the continuous development of new energy technologies, lithium batteries, as key components for energy storage and conversion, are increasingly being used in a wide range of fields. As the core component of a lithium battery module, the performance and assembly process of the battery cell directly affect the energy density, safety performance and production cost of the entire battery module. In the production process of lithium battery modules, the stacking and bonding of battery cells is a crucial link, which not only determines the structural stability of the battery module, but also directly affects the thermal management, current distribution and overall life of the battery.

[0003] In the traditional lithium battery module production method, the stacking process of battery cells often involves multiple manual or semi-automated steps. First, it is necessary to accurately attach rubber pads to the specific surface of the battery cell to ensure good bonding between the battery cells and between the battery cells and the end plates, while providing the necessary buffering and insulation effects. Subsequently, multiple battery cells are stacked and bonded together in a predetermined order and arrangement to form a tight battery cell stack. Finally, the two end plates are respectively attached to the two outer sides of the battery cell stack to protect the battery cell stack from interference from the external environment.

[0004] However, existing automated production lines, such as the battery module PACK production line described in the Chinese patent with publication number CN111682233A, although they have achieved automation of pre-processing, gluing, assembly and finished product unloading of battery cells to a certain extent, still have limitations. In particular, the production line only supports gluing operations on the same side of all battery cells. For complex scenarios where it is necessary to glue the front of some battery cells and the back of some battery cells according to the specific design requirements of the battery module, the existing production line is obviously unable to cope with it. If it is necessary to glue the back of the battery cell, the operator has to interrupt the automated process, manually flip the battery cell over and then send it into the gluing unit, which not only greatly reduces production efficiency, but may also cause uneven gluing quality due to the instability of manual operation, thereby affecting the overall performance and reliability of the battery module.

[0005] In view of the above problems, it is necessary to develop an automatic stacking equipment for energy storage lithium battery modules, which can automatically produce different battery modules and flexibly adapt to the gluing requirements of different battery modules. Summary of the invention

[0006] 1. Technical issues to be solved

[0007] The present invention provides an automatic stacking device for energy storage lithium battery modules, which can at least solve the technical problem of how to automatically produce different battery modules and flexibly adapt to the gluing requirements of different battery modules.

[0008] (II) Technical solution

[0009] In order to solve the above technical problems, the present invention provides the following technical solutions: an automatic stacking device for energy storage lithium battery modules, comprising:

[0010] frame;

[0011] A pretreatment device, a first conveyor line, a second conveyor line, a third conveyor line, a fourth conveyor line, a transfer device, a glue peeling and gluing device and a pre-stacking device are arranged on the frame, the first conveyor line is used to convey battery cells, the pretreatment device is used to pre-treat the battery cells on the first conveyor line, the transfer device is used to transfer the pretreated battery cells to the second conveyor line or the fourth conveyor line, or flip the pretreated battery cells 180° and transfer them to the third conveyor line, the glue peeling and gluing device is used to peel off a layer of release paper of the rubber pad, and stick the rubber pad on the battery cells of the second conveyor line and / or the third conveyor line, and peel off another layer of release paper of the rubber pad on the second conveyor line and / or the third conveyor line, and the pre-stacking device is used to grab the battery cells of the second conveyor line, the third conveyor line or the fourth conveyor line and transfer them to the second conveyor line or the third conveyor line, so as to stack and bond two battery cells to form a battery cell assembly;

[0012] The component loading device, stacking pressurizing device and unloading device are arranged on the frame. The component loading device is used to transport the battery cell components and end plates to the stacking pressurizing device. The stacking pressurizing device is used to stack and compress a plurality of battery cell components and two end plates to form a battery module. The unloading device is used to unload the battery module stacked by the stacking pressurizing device.

[0013] It is further provided that the aforementioned frame is provided with a rubber pad loading station, a rubber peeling station and a rubber pasting loading station, and the rubber peeling and pasting device comprises:

[0014] The rubber pad feeding mechanism is arranged on the frame and is used to transport the rubber pads one by one to the rubber pad feeding station;

[0015] The rotary clamping mechanism is arranged on the frame and is used to clamp or release the lower layer of release paper of the rubber pad at the glue peeling station, and to flip the lower layer of release paper;

[0016] The first transfer mechanism is arranged on the frame and is used to grab the rubber pad at the rubber pad loading station and transfer it to the rubber peeling station, and drive the rubber pad at the rubber peeling station to transfer it to the rubber pasting loading station;

[0017] The second transfer mechanism is arranged on the frame and is used to grab the rubber pads from the glue loading station and transfer them to the battery cells on the second conveyor line or the third conveyor line;

[0018] The oblique clamping mechanism and the third transfer mechanism are arranged on the frame and are transmission-connected with the oblique clamping mechanism. The third transfer mechanism and the oblique clamping mechanism are combined to peel off the upper release paper of the rubber pad.

[0019] It is further configured that the aforementioned rotary clamping mechanism includes two rotary driving members, a clamping driving member and a clamping arm. The two rotary driving members are symmetrically arranged on the frame and are transmission-connected to the clamping driving members. The output end of the clamping driving member is connected to the two clamping arms. The clamping driving member is used to drive the two clamping arms to move closer to or away from each other. At least two clamping blocks are provided in the length direction of the clamping arms. The clamping blocks of the two clamping arms correspond one to one and are used to clamp or loosen the lower layer of release paper of the rubber pad.

[0020] It is further configured that the aforementioned oblique clamping mechanism includes at least two clamping jaws, and the at least two clamping jaws are respectively inclined relative to the second conveyor line and the third conveyor line to clamp or loosen the upper layer of release paper of the rubber pad of the second conveyor line and / or the third conveyor line.

[0021] Further, the aforementioned adhesive peeling and adhesive applying device further comprises:

[0022] A visual inspection component and a waste bucket, wherein the visual inspection component is arranged on the frame or the third transfer mechanism and is used to detect the position of the upper release paper of the rubber pad of the second conveyor line and / or the third conveyor line, and to detect whether the upper release paper is peeled off, and to detect the position of the waste bucket, wherein the waste bucket is used to accommodate the peeled upper release paper;

[0023] A waste hopper and a glue tearing detection component, wherein the waste hopper is arranged on the frame and is located below the rotating clamping mechanism, the waste hopper is used to collect the lower layer of release paper that has been peeled off, the glue tearing detection component is arranged on the frame or the waste hopper and is arranged opposite to the glue tearing station, and the glue tearing detection component is used to detect whether the lower layer of release paper has been peeled off.

[0024] It is further configured that the aforementioned rubber pad loading station, rubber peeling station and rubber laminating loading station are sequentially arranged in a transverse direction, the first transfer mechanism and the second transfer mechanism both include a transverse moving drive member, a lifting drive member and an adsorption head, and the second transfer mechanism also includes a longitudinal drive member and a rotating drive member;

[0025] Among them, the adsorption head is used to adsorb or release the rubber pad, the lateral movement driving member is used to drive the adsorption head to translate horizontally, the lifting driving member is used to drive the adsorption head to lift and lower, the longitudinal driving member is used to drive the adsorption head to translate longitudinally, and the rotating driving member is used to drive the adsorption head to rotate vertically.

[0026] Further, the aforementioned transfer device comprises:

[0027] A turning table is provided on one side of the first conveyor line and is used to carry the battery cells;

[0028] Two battery cell clamps, both used to clamp or release the battery cells;

[0029] A transplanting mechanism, a flipping mechanism and a position adjustment mechanism, wherein the transplanting mechanism and the position adjustment mechanism are both arranged on the frame, the transplanting mechanism is transmission-connected to one of the battery cell clamps, the position adjustment mechanism is transmission-connected to the flipping mechanism, and the flipping mechanism is transmission-connected to the other battery cell clamp;

[0030] Among them, the transplanting mechanism and one of the battery cell clamps are combined to transfer the pre-treated battery cells to the second conveyor line, the fourth conveyor line or the turning table, and to transfer the turned battery cells on the turning table to the third conveyor line; the position adjustment mechanism, the turning mechanism and another battery cell clamp combination are used to turn the battery cells on the turning table 180° and adjust the position of the battery cells on the turning table.

[0031] It is further configured that the aforementioned first conveyor line is provided with a battery cell testing station and a cleaning station, the pretreatment device includes a battery cell loading mechanism, a material receiving mechanism, an OCV testing mechanism, a plasma cleaning mechanism and an NG conveyor line, the battery cell loading mechanism is used to transport the battery cells to the material receiving mechanism, the material receiving mechanism is used to receive the battery cells transported by the battery cell loading mechanism, and place the battery cells on the battery cell testing station of the first conveyor line, the OCV testing mechanism is used to perform OCV testing on the battery cells at the battery cell testing station, the plasma cleaning mechanism is used to perform plasma cleaning on the battery cells at the cleaning station, and the transfer device is also used to transfer the battery cells that fail the test on the first conveyor line to the NG conveyor line.

[0032] It is further configured that the aforementioned plasma cleaning mechanism includes a nozzle, a nozzle driving mechanism and a battery cell driving mechanism. The nozzle and the cleaning station are arranged relative to each other. The nozzle driving mechanism and the battery cell driving mechanism are both arranged on a frame. The nozzle driving mechanism is connected to the nozzle in a transmission manner. The nozzle driving mechanism and the battery cell driving mechanism are combined to drive the relative movement of the nozzle and the battery cell of the cleaning station.

[0033] Further, the aforementioned stacking pressurizing device comprises:

[0034] A carrier plate, a carrier plate driving mechanism, a lower pressing plate and a lower pressing driving mechanism. The carrier plate is used to carry the battery module. The carrier plate driving mechanism is arranged on the frame and is transmission-connected to the carrier plate. The carrier plate driving mechanism is used to drive the carrier plate to move up and down. The lower pressing plate is arranged relative to the carrier plate up and down. The lower pressing driving mechanism is transmission-connected to the lower pressing plate. The lower pressing driving mechanism is used to drive the lower pressing plate to move up and down.

[0035] A left pressing plate, a left pressing drive mechanism, a right pressing plate and a right pressing drive mechanism. The left pressing plate and the right pressing plate are respectively located on both sides of the module conveying line. The left pressing drive mechanism and the right pressing drive mechanism are both arranged on a frame. The left pressing drive mechanism is connected to the left pressing plate by transmission, and the right pressing drive mechanism is connected to the right pressing plate by transmission. The left pressing drive mechanism and the right pressing drive mechanism are combined to drive the left pressing plate and the right pressing plate to move closer to or away from each other.

[0036] A rear pressure plate, a rear pressure driving mechanism, a front pressure plate and a front pressure driving mechanism, wherein the rear pressure plate and the front pressure plate are arranged along the conveying direction of the module conveying line, the rear pressure driving mechanism and the front pressure driving mechanism are both arranged on a frame, the rear pressure driving mechanism is transmission-connected to the rear pressure plate, the front pressure driving mechanism is transmission-connected to the front pressure plate, and the rear pressure driving mechanism and the front pressure driving mechanism are combined to drive the rear pressure plate and the front pressure plate to move closer to or away from each other;

[0037] Among them, the carrier plate, the lower pressing plate, the left pressing plate, the right pressing plate, the rear pressing plate and the front pressing plate are combined to form a pressing space for pressing the battery module.

[0038] (III) Beneficial effects

[0039] Compared with the prior art, the automatic stacking device for energy storage lithium battery modules provided by the present invention has the following beneficial effects:

[0040] 1. The present invention automatically completes the entire process from pre-treatment of battery cells, adhesive peeling and adhesive application to stacking and unloading of battery modules, replacing manual labor, significantly improving the production efficiency of battery modules, while reducing manual intervention, avoiding the instability of manual operation, and ensuring the overall performance and reliability of the battery modules.

[0041] 2. The present invention can perform front-side gluing and back-side gluing on the battery cells on the second conveyor line and the third conveyor line respectively through the cooperation of the transfer device and the glue peeling and gluing device, so as to flexibly adapt to the gluing requirements of different battery modules, so as to produce different battery modules and improve the gluing quality.

[0042] 3. The present invention can accurately stack battery modules through the cooperation of the pre-stacking device, the component loading device and the stacking pressurizing device, thereby ensuring the overall performance and reliability of the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a plan view of an automatic stacking device for energy storage lithium battery modules in an embodiment;

[0044] Figure 2 It is a schematic diagram of the structure of the battery cell feeding mechanism, the material receiving mechanism, the OCV testing mechanism and the plasma cleaning mechanism in the embodiment;

[0045] Figure 3It is a structural schematic diagram of a material receiving mechanism, an OCV testing mechanism and a plasma cleaning mechanism in the embodiment;

[0046] Figure 4 It is a schematic diagram of the structure of the first conveyor line, the second conveyor line, the third conveyor line, the fourth conveyor line and the transfer device in the embodiment;

[0047] Figure 5 It is a schematic diagram of the structure of the rubber pad feeding mechanism, the rotary clamping mechanism and the first transfer mechanism in the embodiment;

[0048] Figure 6 is a schematic structural diagram of the second transfer mechanism, the oblique clamping mechanism, the third transfer mechanism and the pre-stacking device in the embodiment at a first viewing angle;

[0049] Figure 7 for Figure 6 The enlarged schematic diagram of point A in the middle;

[0050] Figure 8 is a schematic structural diagram of the second transfer mechanism, the oblique clamping mechanism, the third transfer mechanism and the pre-stacking device in the embodiment at a second viewing angle;

[0051] Fig. 9 It is a schematic diagram of the structure of the component feeding device and the stacking pressurizing device in the embodiment;

[0052] Fig.10 Schematic diagram of the structure of the stacking pressurizing device in the embodiment.

[0053] Figure Number:

[0054] 11. Frame; 111. Rubber pad loading station; 112. Glue peeling station; 113. Glue pasting and loading station; 114. Waste hopper; 115. Waste barrel; 116. Rubber pad placement table;

[0055] 12. Pretreatment device; 121. Cell feeding mechanism; 1211. Tray; 1212. Cell feeding manipulator; 1213. Feeding fixture; 122. Material receiving mechanism; 1221. First clamping drive member; 1222. Second clamping drive member; 1223. Turning drive member; 1224. Downward drive member; 123. OCV testing mechanism; 124. Plasma cleaning mechanism; 1241. Nozzle; 1242. Nozzle drive mechanism; 1243. Cell drive mechanism; 125. NG conveyor line;

[0056] 13. First conveyor line; 131. Cell testing station; 132. Cleaning station;

[0057] 14. Second conveyor line; 15. Third conveyor line; 16. Fourth conveyor line;

[0058] 17. Transfer device; 171. Turning table; 172. Transfer fixture; 173. Transplanting mechanism; 174. Turning mechanism; 175. Position adjustment mechanism;

[0059] 18. Glue peeling and gluing device; 181. Glue pad feeding mechanism; 1811. Glue pad storage bin; 1812. Shelf; 1813. Glue pad lifting mechanism; 182. Rotary clamping mechanism; 1821. Clamp arm rotation driving member; 1822. Clamping driving member; 1823. Clamp arm; 18231. Clamp block; 183. First transfer mechanism; 1831. Lateral movement driving member; 1832. Lifting driving member; 1833. Adsorption head; 184. Second transfer mechanism; 1841. Longitudinal driving member; 1842. Rotary driving member; 185. Oblique clamping mechanism; 1851. Clamping claw; 186. Third transfer mechanism; 187. Glue peeling detection member; 188. Visual detection member; 189. Glue pad limiting mechanism; 1891. Limiting block; 1892. Limiting block driving member;

[0060] 19. Pre-stacking device; 191. Cache line;

[0061] 21. Component loading device; 211. Loading manipulator; 212. Component fixture; 213. End plate fixture;

[0062] 22. stacking pressurizing device; 2201. carrier plate; 2202. carrier plate driving mechanism; 2203. lower pressing plate; 2204. lower pressing driving mechanism; 2205. left pressing plate; 2206. left pressing driving mechanism; 2207. right pressing plate; 2208. right pressing driving mechanism; 2209. rear pressing plate; 2210. rear pressing driving mechanism; 2211. front pressing plate; 2212. front pressing driving mechanism; 2213. pressing space;

[0063] 23. Unloading device; 231. Module conveying line; 232. Sorting unloading device; 2321. Testing mechanism; 2322. Unloading manipulator; 2323. Module fixture; 233. Good product conveying device; 234. Bad product conveying device;

[0064] 24. End plate storage rack;

[0065] 31. Battery cell; 32. Rubber pad; 33. Battery cell assembly; 34. End plate; 35. Battery module. DETAILED DESCRIPTION

[0066] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0067] The present invention provides an automatic stacking device for energy storage lithium battery modules, which is used to solve the problem of how to automatically produce different battery modules 35 and flexibly adapt to the glue laminating requirements of different battery modules 35.

[0068] See also Figure 1 As shown, Figure 1 It is a plan schematic diagram of the automatic stacking equipment of the energy storage lithium battery modules in the embodiment, and the automatic stacking equipment of the energy storage lithium battery modules includes a frame 11 and a pre-treatment device 12 installed on the frame 11, a first conveyor line 13, a second conveyor line 14, a third conveyor line 15, a fourth conveyor line 16, a transfer device 17, a glue peeling and gluing device 18, a pre-stacking device 19, a component loading device 21, a stacking pressurizing device 22 and a unloading device 23.

[0069] The first conveying line 13 is used to convey the battery cells 31 . The pre-processing device 12 is used to pre-process the battery cells 31 on the first conveying line 13 .

[0070] The transfer device 17 is used to transfer the pre-treated battery cells 31 to the second conveyor line 14 or the fourth conveyor line 16 , or to flip the pre-treated battery cells 31 180° and transfer them to the third conveyor line 15 .

[0071] The glue peeling and gluing device 18 is used to peel off a layer of release paper of the glue pad 32, and stick the glue pad 32 on the battery cell 31 of the second conveyor line 14 and / or the third conveyor line 15, and peel off another layer of release paper of the glue pad 32 on the second conveyor line 14 and / or the third conveyor line 15.

[0072] The pre-stacking device 19 is used to grab the battery cells 31 of the second conveyor line 14 , the third conveyor line 15 or the fourth conveyor line 16 and transfer them to the second conveyor line 14 or the third conveyor line 15 to stack and bond two battery cells 31 to form a battery cell assembly 33 .

[0073] The assembly loading device 21 is used to transport the battery cell assembly 33 and the end plate 34 to the stacking pressurizing device 22 .

[0074] The stacking and pressing device 22 is used to stack and press a plurality of battery cell assemblies 33 and two end plates 34 to form a battery module 35 .

[0075] The unloading device 23 is used to unload the battery modules 35 stacked by the stacking and pressurizing device 22 .

[0076] When the automatic stacking device for energy storage lithium battery modules of the above technical solution is used, first, the battery cells 31 are conveyed through the first conveyor line 13, and the battery cells 31 on the first conveyor line 13 are pre-processed by the pre-processing device 12, and the battery cells 31 on the first conveyor line 13 are uniformly facing upward. After pretreatment, if the front side of the battery cell 31 needs to be glued, the transfer device 17 directly transfers the battery cell 31 to the second conveyor line 14, and then the glue peeling and gluing device 18 peels off a layer of release paper of the glue pad 32, and sticks the glue pad 32 on the battery cell 31 of the second conveyor line 14; if the back side of the battery cell 31 needs to be glued, the transfer device 17 flips the battery cell 31 180° to the back side facing up, and then transfers it to the third conveyor line 15, and then the glue peeling and gluing device 18 peels off a layer of release paper of the glue pad 32, and sticks the glue pad 32 on the battery cell 31 of the third conveyor line 15; if the battery cell 31 does not need to be glued, the transfer device 17 directly transfers it to the fourth conveyor line 16. After gluing, the pre-stacking device 19 can grab the battery cells 31 of the second conveyor line 14, the third conveyor line 15 or the fourth conveyor line 16 and stack them on the battery cells 31 of the second conveyor line 14 or the third conveyor line 15. Before pre-stacking, the glue peeling and gluing device 18 peels off another layer of release paper pressed on the battery cell 31 below to bond two stacked battery cells 31 to form a battery cell assembly 33. The above steps are repeated to obtain the required number of battery cell assemblies 33. Then, the assembly loading device 21 transports the end plate 34 to the stacking and pressurizing device 22, and then, the glue peeling and gluing device 18 peels off another layer of release paper of the upper battery cell 31 in the battery cell assembly 33, and the assembly loading device 21 then transports the battery cell assembly 33 to the stacking and pressurizing device 22 for stacking and bonding with the end plate 34. Alternatively, the glue peeling and gluing device 18 can also peel off another layer of release paper of a single battery cell 31, and the assembly loading device 21 then transports the single battery cell 31 to the stacking and pressurizing device 22 for stacking and bonding. After repeatedly stacking and bonding a number of battery cell assemblies 33 or battery cells 31, the glue peeling and gluing device 18 transports the next end plate 34 to the stacking and pressurizing device 22 for stacking and bonding to form a battery module 35. Finally, the unloading device 23 moves the battery module 35 out of the stacking and pressing device 22 .

[0077] It can be seen from the above use process that compared with the prior art, the present invention has the following advantages:

[0078] 1) From the pre-treatment of the battery cell 31, the removal of the adhesive and the adhesive application to the stacking and unloading of the battery module 35, the entire process is completed automatically by the equipment, replacing manual labor, significantly improving the production efficiency of the battery module 35, while reducing manual intervention, avoiding the instability of manual operation, and ensuring the overall performance and reliability of the battery module 35;

[0079] 2) The transfer device 17 and the glue peeling and gluing device 18 can be used to glue the front and back of the battery cells 31 on the second conveyor line 14 and the third conveyor line 15 respectively, so as to flexibly adapt to the gluing requirements of different battery modules 35, so as to produce different battery modules 35 and improve the gluing quality;

[0080] 3) The pre-stacking device 19 , the component loading device 21 and the stacking pressurizing device 22 cooperate to accurately stack the battery module 35 , thereby ensuring the overall performance and reliability of the battery module 35 .

[0081] The first conveyor line 13, the second conveyor line 14, the third conveyor line 15 and the fourth conveyor line 16 can all use existing conveying mechanisms such as belt conveying mechanisms or roller conveying mechanisms.

[0082] At least two battery cell 31 positioning mechanisms can be installed on the second conveyor line 14, the third conveyor line 15 and the fourth conveyor line 16, which correspond to the glue peeling and gluing device 18 and the pre-stacking device 19 respectively, so as to avoid displacement of the battery cell 31 during the gluing or stacking process, affecting the quality of gluing and stacking.

[0083] See also Figure 1 , Figure 5 and Figure 6 As shown, Figure 5 It is a structural schematic diagram of the rubber pad feeding mechanism, the rotary clamping mechanism and the first transfer mechanism in the embodiment, Figure 61 is a schematic diagram of the structure of the second transfer mechanism, the oblique clamping mechanism, the third transfer mechanism and the pre-stacking mechanism in the embodiment at a first viewing angle. In one embodiment of the glue peeling and gluing device 18, the glue peeling and gluing device 18 includes a glue pad feeding mechanism 181, a rotating clamping mechanism 182, a first transfer mechanism 183, a second transfer mechanism 184, an oblique clamping mechanism 185 and a third transfer mechanism 186. The frame 11 is provided with a glue pad feeding station 111, a glue peeling station 112 and a glue gluing feeding station 113. The glue pad feeding mechanism 181, the rotating clamping mechanism 182, the first transfer mechanism 183, the second transfer mechanism 184 and the third transfer mechanism 186 are all installed on the frame 11. The glue pad feeding mechanism 181 is used to transport the glue pads 32 one by one to the glue pad feeding station 111. The rotating clamping mechanism 182 is used to clamp or loosen the lower layer of release paper of the glue pad 32 of the glue peeling station 112, and flip the lower layer of release paper. The first transfer mechanism 183 is used to grab the rubber pad 32 of the rubber pad loading station 111 and transfer it to the rubber peeling station 112, and drive the rubber pad 32 of the rubber peeling station 112 to transfer to the rubber pasting loading station 113. The second transfer mechanism 184 is used to grab the rubber pad 32 of the rubber pasting loading station 113 and transfer it to the battery cell 31 of the second conveyor line 14 or the third conveyor line 15. The third transfer mechanism 186 is connected to the oblique clamping mechanism 185 in transmission, and the third transfer mechanism 186 and the oblique clamping mechanism 185 are combined to peel off the upper release paper of the rubber pad 32. In this way, when gluing, first, the first transfer mechanism 183 grabs the rubber pad 32 of the rubber pad loading station 111 and transfers it to the rubber peeling station 112, and the rotating clamping mechanism 182 clamps the lower layer of release paper of the rubber pad 32 of the rubber peeling station 112; then, the first transfer mechanism 183 moves relative to the rotating clamping mechanism 182 to transfer the rubber pad 32 to the gluing loading station 113, and at the same time, the rotating clamping mechanism 182 flips the lower layer of release paper to peel off the lower layer of release paper of the rubber pad 32; then, the first transfer mechanism 183 releases the rubber pad 32 and returns to the rubber pad loading station 111, Prepare to grab the next rubber pad 32 to be glued, and at the same time rotate the clamping mechanism 182 to loosen the lower layer of release paper of the rubber pad 32; then, the second transfer mechanism 184 grabs the rubber pad 32 of the glue loading station 113 and transfers it to the battery cell 31 of the second conveyor line 14 or the third conveyor line 15; finally, the third transfer mechanism 186 drives the oblique clamping mechanism 185 to move to the second conveyor line 14 and / or the third conveyor line 15 to clamp and peel off the upper layer of release paper of the rubber pad 32, so as to stack and bond several battery cells 31 of the second conveyor line 14 and / or the third conveyor line 15 in the subsequent stacking. It can be seen that the glue peeling and gluing device 18 can not only peel off the two layers of release paper of the rubber pad 32, but also paste the rubber pad 32 after the release paper is peeled off.

[0084] See also Figure 5As shown, in one embodiment of the rotating clamping mechanism 182, the rotating clamping mechanism 182 includes two clamping arm rotating driving members 1821, a clamping driving member 1822 and a clamping arm 1823. The two clamping arm rotating driving members 1821 are symmetrically distributed and are arranged on the frame 11 by screwing or welding. The clamping arm rotating driving member 1821 is transmission-connected with the clamping driving member 1822. The output end of the clamping driving member 1822 is connected to the two clamping arms 1823 by screwing or welding. The clamping driving member 1822 is used to drive the two clamping arms 1823 to move closer to or away from each other. At least two clamping blocks 18231 are spaced apart in the length direction of the clamping arms 1823 by screwing or welding. The clamping blocks 18231 of the two clamping arms 1823 correspond to each other one by one, and are used to clamp or loosen the lower layer of release paper of the rubber pad 32. In this way, the two clamping driving members 1822 drive the two clamping arms 1823 to approach each other, so as to clamp the lower layer of release paper of several rubber pads 32 between the two clamping arms 1823 at the same time. In the process of peeling off the lower layer of release paper, the two clamping arm rotating driving members 1821 rotate synchronously and flip the lower layer of release paper downward, which can assist the first transfer mechanism 183 to smoothly peel off several lower layers of release paper, thereby greatly improving the efficiency of glue peeling. Among them, the clamping block 18231 can improve the firmness of the rotating clamping mechanism 182 to clamp the release paper to ensure the smooth progress of the peeling operation.

[0085] The clamp arm rotation drive member 1821 may use an existing rotation drive mechanism such as a rotation cylinder or a rotation motor, and its output end is connected to the clamp drive member 1822 by screw connection or welding. The clamp drive member 1822 may use an existing clamp mechanism such as a clamp cylinder.

[0086] See also Figure 6 and Figure 7 As shown, Figure 7 for Figure 6 In the enlarged schematic diagram at A in the middle, in one embodiment of the oblique clamping mechanism 185, the oblique clamping mechanism 185 includes at least two clamping jaws 1851. At least two clamping jaws 1851 are respectively arranged obliquely relative to the second conveyor line 14 and the third conveyor line 15 to clamp or release the upper layer of release paper of the rubber pad 32 of the second conveyor line 14 and / or the third conveyor line 15. In this way, the oblique clamping mechanism 185 can simultaneously clamp the upper layer of release paper of the battery cells 31 on the second conveyor line 14 and the third conveyor line 15 through at least two clamping jaws 1851, so as to simultaneously peel off the upper layer of release paper of the battery cells 31 on the second conveyor line 14 and the third conveyor line 15, further improving the efficiency of glue peeling.

[0087] The clamping jaw 1851 can use an existing clamping mechanism such as a clamping cylinder, and can be connected to the output end of the third transfer mechanism 186 by screwing or welding.

[0088] See also Figure 5, Figure 6 and Figure 8 As shown, Figure 8 1 is a schematic diagram of the structure of the second transfer mechanism, the oblique clamping mechanism, the third transfer mechanism and the pre-stacking device in the embodiment at a second viewing angle. On the basis of the above embodiment, the glue peeling and gluing device 18 also includes a glue peeling detection member 187 and a visual detection member 188. The frame 11 includes a waste hopper 114 and a waste barrel 115. The waste hopper 114 is located below the rotating clamping mechanism 182 and is used to collect the lower layer of release paper that has been peeled off. The waste barrel 115 is used to accommodate the upper layer of release paper that has been peeled off. The glue peeling detection member 187 is arranged on the frame 11 or the waste hopper 114 by screwing or welding, and is arranged relative to the position of the glue peeling station 112. The glue peeling detection member 187 is used to detect whether the lower layer of release paper is peeled off. The visual detection member 188 is used to detect the position of the upper layer of release paper of the glue pad 32 of the second conveyor line 14 and / or the third conveyor line 15, and detect whether the upper layer of release paper is peeled off, and detect the position of the waste barrel 115. In this way, the glue peeling and gluing device 18 determines the position of the upper release paper through the visual detection part 188, which can facilitate the oblique clamping mechanism 185 and the third transfer mechanism 186 to cooperate to accurately peel off the upper release paper of the glue pad 32 of the second conveyor line 14 and / or the third conveyor line 15, and transfer the peeled upper release paper to the waste barrel 115; the glue peeling and gluing device 18 can also detect whether the upper and lower release papers are peeled off through the visual detection part 188 and the glue peeling detection part 187, so as to avoid the situation where the subsequent stacking and bonding of the battery cells 31 is affected by the missed peeling of the release paper; and the waste barrel 115 and the waste hopper 114 can collect the peeled release paper, which is convenient for the staff to handle it in a centralized manner.

[0089] The visual inspection component 188 may use a CCD camera, which can accurately detect the position of the upper release paper or the waste bin 115 through vision, and can also detect whether the upper release paper has been peeled off.

[0090] The above-mentioned glue tearing detection member 187 can use existing infrared sensors and other sensors, and the number of glue tearing detection members 187 is the same as that of glue tearing stations 112, and they correspond one to one. In this way, the glue tearing detection member 187 can sense whether the lower layer of release paper of the corresponding glue tearing station 112 is peeled off.

[0091] See also Figure 1 , Figure 5 and Figure 6As shown, in one embodiment of the first transfer mechanism 183 and the second transfer mechanism 184, the rubber pad loading station 111, the glue peeling station 112, the glue pasting station 113, the second conveyor line 14, the third conveyor line 15 and the fourth conveyor line 16 are sequentially arranged in the horizontal direction, and the first transfer mechanism 183 and the second transfer mechanism 184 both include a horizontal movement drive member 1831, a lifting drive member 1832 and an adsorption head 1833. The second transfer mechanism 184 also includes a longitudinal drive member 1841 and a rotation drive member 1842. Among them, the adsorption head 1833 is used to adsorb or release the rubber pad 32; the horizontal movement drive member 1831 is used to drive the adsorption head 1833 to translate in the horizontal direction; the lifting drive member 1832 is used to drive the adsorption head 1833 to move up and down; the longitudinal drive member 1841 is used to drive the adsorption head 1833 to translate in the longitudinal direction; and the rotation drive member 1842 is used to drive the adsorption head 1833 to rotate vertically. In this way, the first transfer mechanism 183 can realize the transfer of the rubber pad 32 between the rubber pad loading station 111, the glue tearing station 112 and the glue pasting station 113 by cooperating with the horizontally moving drive member 1831, the lifting drive member 1832 and the adsorption head 1833. The second transfer mechanism 184 can accurately adjust the bonding position of the rubber pad 32 on the battery cell 31 and improve the quality of glue pasting by cooperating with the horizontally moving drive member 1831, the lifting drive member 1832, the adsorption head 1833, the longitudinal drive member 1841 and the rotating drive member 1842.

[0092] The above-mentioned transverse direction is a direction perpendicular to the conveying direction of the battery cell 31 .

[0093] Two of the above-mentioned rotating driving member 1842 and the adsorption head 1833 can be provided, so that the adhesive peeling and adhesive pasting device 18 can simultaneously apply adhesive to the battery cells 31 of the second conveyor line 14 and the third conveyor line 15, and can also simultaneously peel off another layer of release paper of the adhesive pad 32 on the second conveyor line 14 and the third conveyor line 15. In this way, the mass production efficiency of the battery module 35 is further improved.

[0094] See also Figure 7 and Figure 8As shown, based on the above embodiment, the third transfer mechanism 186 and the pre-stacking device 19 also include the above-mentioned lateral movement drive member 1831 and the lifting drive member 1832. The waste bucket 115 is arranged laterally on one side of the fourth conveying line 16. The pre-stacking device 19 also includes a buffer line 191, which is arranged laterally on one side of the second conveying line 14. In this way, the third transfer mechanism 186 can realize the displacement and glue tearing operation of the oblique clamping mechanism 185 between the second conveyor line 14, the third conveyor line 15, the fourth conveyor line 16 and the waste bucket 115 through the cooperation of the horizontal moving drive member 1831 and the lifting drive member 1832; the pre-stacking device 19 can realize the stacking and transfer of the battery cells 31 through the cooperation of the horizontal moving drive member 1831 and the lifting drive member 1832. Among them, if it is necessary to stack the battery cells 31 on the same conveyor line, the pre-stacking device 19 needs to first transfer a battery cell 31 on the conveyor line to the cache line 191. After the next battery cell 31 on the conveyor line is in place, the pre-stacking device 19 stacks the battery cell 31 on the cache line 191 on the next battery cell 31 in place.

[0095] The above-mentioned lateral movement driving member 1831 and the longitudinal driving member 1841 can both use existing linear displacement driving mechanisms such as linear motor linear modules or ball screw linear modules, the above-mentioned lifting driving member 1832 can use existing linear displacement driving mechanisms such as telescopic cylinders or ball screw linear modules, the above-mentioned rotating driving member 1842 can use existing rotating driving mechanisms such as servo rotating motors, and the above-mentioned adsorption head 1833 can use existing adsorption tools such as vacuum suction cups.

[0096] See also Figure 5 and Figure 6As shown, on the basis of the above embodiment, a rubber pad placement table 116 is provided at the glue loading station 113 of the frame 11. The glue peeling and glue sticking device 18 also includes a rubber pad limiting mechanism 189. The rubber pad limiting mechanism 189 includes four limiting blocks 1891 and at least two limiting block driving members 1892. Among them, two limiting blocks 1891 are arranged on the table surface of the rubber pad placement table 116 in a horizontal direction, and are connected to at least one limiting block driving member 1892 in a transmission connection, and the limiting block driving member 1892 is used to drive the two limiting blocks 1891 arranged in a horizontal direction to move closer to each other or away from each other. Among them, two limiting blocks 1891 are arranged on the table surface of the rubber pad placement table 116 in a vertical direction, and are connected to at least one limiting block driving member 1892 in a transmission connection, and the limiting block driving member 1892 is used to drive the two limiting blocks 1891 arranged in a vertical direction to move closer to each other or away from each other. A limiting groove for limiting the rubber pad 32 is formed between the four limiting blocks 1891 and the table surface of the rubber pad placement table 116. The limiting block driving member 1892 is arranged on the rubber pad placement table 116 by screw connection or welding. In this way, the rubber pad limiting mechanism 189 can limit the position of the rubber pad 32 on the rubber pad placement table 116 through the limiting blocks 1891, and the position is set as the initial position for the second transfer mechanism 184 to transfer the rubber pad 32 for gluing, thereby ensuring the consistency and accuracy of the gluing position and further improving the gluing quality.

[0097] The above-mentioned limit block 1891 and the table surface of the rubber pad placement table 116 are made of non-stick material that will not adhere to the rubber pad 32, so as to prevent the rubber pad limiting mechanism 189 from being unable to limit the rubber pad 32, and to prevent the second transfer mechanism 184 from being unable to drive the rubber pad 32 to leave the limiting groove.

[0098] The above-mentioned limit block driving component 1892 can use an existing linear displacement driving mechanism such as a telescopic cylinder or a ball screw linear module, and its output end is connected to one or two limit blocks 1891 by screw connection or welding.

[0099] See also Figure 5 As shown, in one embodiment of the rubber pad feeding mechanism 181, the rubber pad feeding mechanism 181 includes a rubber pad storage bin 1811, a shelf 1812 and a rubber pad lifting mechanism 1813. The rubber pad storage bin 1811 is used to accommodate and stack a plurality of rubber pads 32. The shelf 1812 is arranged in the rubber pad storage bin 1811 in a liftable manner, and the shelf 1812 is used for stacking and placing the rubber pads 32 in the rubber pad storage bin 1811. The rubber pad lifting mechanism 1813 is arranged on the frame 11 by screwing or welding, and the output end of the rubber pad lifting mechanism 1813 is connected to the shelf 1812 by screwing or welding. The rubber pad lifting mechanism 1813 is used to drive the shelf 1812 and the rubber pad 32 thereon to move up and down, so as to drive the rubber pad 32 in the rubber pad storage bin 1811 to rise to the rubber pad feeding station 111 so as to be grasped by the first transfer mechanism 183.

[0100] The above-mentioned pad lifting mechanism 1813 can use existing linear displacement driving mechanisms such as linear motor linear module or ball screw linear module.

[0101] See also Figure 1 and Figure 4 As shown, Figure 4 1 is a schematic diagram of the structure of the first conveyor line, the second conveyor line, the third conveyor line, the fourth conveyor line and the transfer device in the embodiment. In one embodiment of the transfer device 17, the transfer device 17 includes a flip table 171, a transfer fixture 172, a transplanting mechanism 173, a flip mechanism 174 and a position adjustment mechanism 175. The flip table 171 is located on one side of the first conveyor line 13 and is used to carry the battery cell 31. There are two transfer fixtures 172, both of which are used to clamp or release the battery cell 31. The transplanting mechanism 173 and the position adjustment mechanism 175 are both arranged on the frame 11 by screwing or welding. The transplanting mechanism 173 is connected to one of the transfer fixtures 172 in a transmission connection. The position adjustment mechanism 175 is connected to the flip mechanism 174 in a transmission connection, and the flip mechanism 174 is connected to the other transfer fixture 172 in a transmission connection. The transplanting mechanism 173 is combined with one of the transfer fixtures 172 to transfer the pre-treated battery cell 31 to the second conveyor line 14, the fourth conveyor line 16 or the flip table 171, and to transfer the flipped battery cell 31 on the flip table 171 to the third conveyor line 15; the position adjustment mechanism 175, the flipping mechanism 174 and another transfer fixture 172 are combined to flip the battery cell 31 on the flip table 171 by 180° and adjust the position of the battery cell 31 on the flip table 171. In this way, the position adjustment mechanism 175 can not only adjust the position of the battery cell 31 on the flip table 171, but also lift the battery cell 31 on the flip table 171 to prevent the battery cell 31 from interfering with the flip table 171 during the flipping process, and can lower the flipped battery cell 31 back to the flip table 171.

[0102] The transfer fixture 172 may use an existing battery cell fixture or a clamping cylinder or other clamping mechanism, and the flipping mechanism 174 may use an existing rotary cylinder or a rotary motor or other rotary driving mechanism, and its output end is connected to a transfer fixture 172 by screwing or welding.

[0103] Since the second conveyor line 14, the third conveyor line 15 and the fourth conveyor line 16 are arranged in sequence along the horizontal direction, the above-mentioned position adjustment mechanism 175 can use an existing two-axis moving mechanism, and its output end is connected to the flipping mechanism 174 by screwing or welding, so that it can drive the transfer fixture 172 to move horizontally and vertically; the above-mentioned transplanting mechanism 173 can use a three-axis moving mechanism, or can be replaced by a manipulator, and its output end is connected to a transfer fixture 172 by screwing or welding, so that it can drive the transfer fixture 172 to move horizontally, longitudinally and vertically.

[0104] See also Figure 1 , Figure 2 and Figure 3 As shown, Figure 2 Schematic diagram of the structure of the battery cell feeding mechanism, the material receiving mechanism, the OCV testing mechanism and the plasma cleaning mechanism in the embodiment, Figure 3 Schematic diagram of the structure of the receiving mechanism, OCV testing mechanism and plasma cleaning mechanism in the embodiment. In one embodiment of the pretreatment device 12, the pretreatment device 12 includes a battery cell feeding mechanism 121, a receiving mechanism 122, an OCV testing mechanism 123, a plasma cleaning mechanism 124 and an NG conveyor line 125. A battery cell testing station 131 and a cleaning station 132 are provided on the first conveyor line 13. The battery cell feeding mechanism 121 is used to transport the battery cell 31 to the receiving mechanism 122. The receiving mechanism 122 is used to receive the battery cell 31 transported by the battery cell feeding mechanism 121 and place the battery cell 31 on the battery cell testing station 131 of the first conveyor line 13. The OCV testing mechanism 123 is used to perform OCV testing on the battery cell 31 at the battery cell testing station 131. The plasma cleaning mechanism 124 is used to perform plasma cleaning on the battery cell 31 at the cleaning station 132. The transfer device 17 is also used to transfer the unqualified battery cells 31 on the first conveyor line 13 to the NG conveyor line 125. In this way, the present invention can perform OCV tests on the battery cells 31 on the first conveyor line 13 through the cooperation of the pretreatment device 12 and the transfer device 17, and remove the unqualified battery cells 31 from the first conveyor line 13 to prevent the unqualified battery cells 31 from flowing out to the client, thereby ensuring the factory quality of the battery cells 31, and also facilitating the centralized processing of unqualified battery cells 31 on the NG conveyor line 125 by the staff; and the present invention can also clean the surface of the battery cells 31 before gluing through the pretreatment device 12, thereby further improving the gluing quality.

[0105] The NG conveyor line 125 may use an existing conveying mechanism such as a belt conveying mechanism or a roller conveying mechanism.

[0106] See also Figure 2As shown, in one embodiment of the battery cell feeding mechanism 121, the battery cell feeding mechanism 121 includes a tray 1211 for placing a plurality of battery cells 31, a battery cell feeding robot 1212, and a plurality of feeding fixtures 1213. The plurality of feeding fixtures 1213 are arranged on the output end of the battery cell feeding robot 1212 by screw connection or welding, and the battery cell feeding robot 1212 and the plurality of feeding fixtures 1213 are combined to transport the plurality of battery cells 31 to the receiving mechanism 122. In this way, the battery cell feeding robot 1212 and the plurality of feeding fixtures 1213 cooperate to load a plurality of battery cells 31 at one time, further improving production efficiency.

[0107] The above-mentioned loading fixture 1213 can use an existing battery cell fixture or a clamping mechanism such as a clamping cylinder, and the above-mentioned battery cell loading manipulator 1212 can use an existing manipulator. The above-mentioned OCV testing mechanism 123 can use an existing OCV testing device.

[0108] See also Figure 2 and Figure 3 As shown, in one embodiment of the receiving mechanism 122, the receiving mechanism 122 includes a first clamping driver 1221, a second clamping driver 1222, a flip driver 1223, and a downward driver 1224. The first clamping driver 1221, the flip driver 1223, and the downward driver 1224 are combined to place the battery cell 31 on the first conveyor line 13; the second clamping driver 1222 is used to clamp and position the battery cell 31 on the first conveyor line 13 to prevent the battery cell 31 from moving during the OCV test.

[0109] The first clamping drive member 1221 and the second clamping drive member 1222 can use existing clamping cylinders or telescopic cylinders and other mechanisms, the flipping drive member 1223 can use existing rotating cylinders or rotating motors and other rotating drive mechanisms, and the downward moving drive member 1224 can use existing ball screw linear modules or telescopic cylinders and other linear displacement drive mechanisms.

[0110] See also Figure 2 and Figure 3As shown, in one embodiment of the plasma cleaning mechanism 124, the plasma cleaning mechanism 124 includes a nozzle 1241, a nozzle driving mechanism 1242 and a battery driving mechanism 1243. The nozzle 1241 is arranged relative to the cleaning station 132 for emitting plasma. The nozzle driving mechanism 1242 and the battery driving mechanism 1243 are both arranged on the frame 11 by screwing or welding, and the nozzle driving mechanism 1242 is transmission-connected with the nozzle 1241. The nozzle driving mechanism 1242 and the battery driving mechanism 1243 are combined to drive the nozzle 1241 and the battery 31 of the cleaning station 132 to move relative to each other. In this embodiment, the nozzle driving mechanism 1242 uses an existing two-axis moving mechanism to drive the nozzle 1241 to move horizontally and vertically, and the battery cell driving mechanism 1243 is formed by combining the existing clamping mechanism, lifting mechanism and flipping mechanism. The clamping mechanism can clamp the battery cell 31 of the cleaning station 132, and the lifting mechanism and flipping mechanism can drive the battery cell 31 of the cleaning station 132 to lift and flip. In this way, the plasma cleaning mechanism 124 can perform plasma cleaning on any surface of the battery cell 31 through the cooperation of the nozzle driving mechanism 1242 and the battery cell driving mechanism 1243, so as to facilitate the gluing.

[0111] The nozzle 1241 is connected to an existing plasma device so that the nozzle 1241 can emit plasma to clean the surface of the battery cell 31 .

[0112] See also Figure 1 and Fig. 9 As shown, Fig. 9 2 is a schematic diagram of the structure of the component loading device and the stacking pressurizing device in the embodiment. In one embodiment of the component loading device 21, the component loading device 21 includes a loading manipulator 211, a component fixture 212 and an end plate fixture 213. The component fixture 212 and the end plate fixture 213 are both arranged on the output end of the loading manipulator 211 by screwing or welding. The present invention also includes an end plate storage rack 24 for placing and limiting a plurality of end plates 34. In this way, the component loading device 21 can not only grab and transfer the battery cell components 33 or battery cells 31 on the second conveyor line 14 or the third conveyor line 15, but also grab and transfer the end plates 34 on the end plate storage rack 24.

[0113] The above-mentioned loading robot 211 can use an existing robot, the component clamp 212 can use an existing clamping mechanism such as a clamping cylinder, and the end plate clamp 213 can use an existing adsorption clamp such as a vacuum suction cup.

[0114] See also Figure 1 , Fig. 9 and Fig.10 As shown, Fig.102 is a schematic diagram of the structure of the stacking pressurizing device in the embodiment. In one embodiment of the stacking pressurizing device 22, the stacking pressurizing device 22 includes a carrier plate 2201, a carrier plate driving mechanism 2202, a lower pressing plate 2203, a lower pressing driving mechanism 2204, a left pressing plate 2205, a left pressing driving mechanism 2206, a right pressing plate 2207, a right pressing driving mechanism 2208, a rear pressing plate 2209, a rear pressing driving mechanism 2210, a front pressing plate 2211 and a front pressing driving mechanism 2212. The carrier plate 2201 is used to carry the battery module 35, the carrier plate driving mechanism 2202 is arranged on the frame 11 by screwing or welding, and is connected to the carrier plate 2201 in a transmission manner, and the carrier plate driving mechanism 2202 is used to drive the carrier plate 2201 to move up and down. The pressing plate 2203 is arranged opposite to the carrier plate 2201 in an upper and lower direction, and the lower pressing driving mechanism 2204 is connected to the lower pressing plate 2203 in a transmission manner. The downward pressure driving mechanism 2204 is used to drive the downward pressure plate 2203 to move upward and downward. The left pressure plate 2205 and the right pressure plate 2207 are respectively located on both sides of the module conveying line 231. The left pressure driving mechanism 2206 and the right pressure driving mechanism 2208 are both arranged on the frame 11 by screw connection or welding, and the left pressure driving mechanism 2206 is transmission-connected with the left pressure plate 2205, and the right pressure driving mechanism 2208 is transmission-connected with the right pressure plate 2207. The left pressure driving mechanism 2206 and the right pressure driving mechanism 2208 are combined to drive the left pressure plate 2205 and the right pressure plate 2207 to move closer to or away from each other. The rear pressure plate 2209 and the front pressure plate 2211 are arranged along the conveying direction of the module conveying line 231. The rear pressure drive mechanism 2210 and the front pressure drive mechanism 2212 are both arranged on the frame 11 by screw connection or welding, and the rear pressure drive mechanism 2210 is transmission-connected with the rear pressure plate 2209, and the front pressure drive mechanism 2212 is transmission-connected with the front pressure plate 2211. The rear pressure drive mechanism 2210 and the front pressure drive mechanism 2212 are combined to drive the rear pressure plate 2209 and the front pressure plate 2211 to move closer to or away from each other. Among them, the carrier plate 2201, the lower pressure plate 2203, the left pressure plate 2205, the right pressure plate 2207, the rear pressure plate 2209 and the front pressure plate 2211 are combined to form a pressing space 2213 for pressing the battery module 35. In this way, after the component loading device 21 transports the battery module 35 to the module conveyor line 231, the carrier driving mechanism 2202 drives the carrier 2201 to rise and leave the module conveyor line 231, and the front pressure driving mechanism 2212 drives the front pressure plate 2211 to move toward the rear pressure plate 2209. At the same time, the left pressure driving mechanism 2206 and the right pressure driving mechanism 2208 combine to drive the left pressure plate 2205 and the right pressure plate 2207 to approach each other, and the lower pressure driving mechanism 2204 drives the lower pressure plate 2203 to descend, thereby reducing the pressing space 2213, and the carrier 2201, the lower pressure plate 2203, the left pressure plate 2205, the right pressure plate 2207, the rear pressure plate 2209 and the front pressure plate 2211 cooperate to tightly press the battery module 35.

[0115] In this embodiment, the lengths of the lower pressure plate 2203 and the right pressure plate 2207 are both smaller than the length of the battery module 35, the front pressure drive mechanism 2212 and the right pressure drive mechanism 2208 are both composed of two telescopic cylinders (set as telescopic cylinder a and telescopic cylinder b), the telescopic cylinder a of the front pressure drive mechanism 2212 is arranged on the frame 11, the telescopic cylinder a of the right pressure drive mechanism 2208 is arranged on the output end of the telescopic cylinder a of the front pressure drive mechanism 2212, the telescopic cylinder b of the front pressure drive mechanism 2212 and the right pressure drive mechanism 2208 are both arranged on the output end of the telescopic cylinder b of the right pressure drive mechanism 2208, and the lower pressure drive mechanism 2204 is also arranged on the output end of the telescopic cylinder a of the right pressure drive mechanism 2208. In this way, the telescopic cylinder a of the front pressure driving mechanism 2212 and the right pressure driving mechanism 2208 cooperate with each other to drive the lower pressure plate 2203 to move forward, backward, left and right, so as to press down the battery module 35 in sections, which is suitable for pressing down battery modules 35 of different lengths; and in the process of the lower pressure plate 2203 moving forward and backward, the telescopic cylinder b of the front pressure driving mechanism 2212 drives the front pressure plate 2211 to move forward and backward, so as to prevent the front pressure plate 2211 from over-pressing the battery module 35; among them, the telescopic cylinder b of the right pressure driving mechanism 2208 can fine-tune the position of the right pressure plate 2207 to avoid overpressure or insufficient pressure.

[0116] See also Figure 1 As shown, in one embodiment of the unloading device 23, the unloading device 23 includes a module conveying line 231, a sorting unloading device 232, a good product conveying device 233 and a defective product conveying device 234. The module conveying line 231 is used to convey the battery modules 35 stacked by the stacking pressurizing device 22. The sorting unloading device 232 is used to test the battery modules 35 on the module conveying line 231, and transfer the battery modules 35 that pass the test to the good product conveying device 233, and transfer the battery modules 35 that fail the test to the defective product conveying device 234. It can be seen that the unloading device 23 can realize the classified unloading of the battery modules 35 on the module conveying line 231 through the sorting unloading device 232, so that the staff can perform different treatments on the battery modules 35 on the good product conveying device 233 and the defective product conveying device 234.

[0117] The module conveyor line 231 may use existing conveying mechanisms such as belt conveyor mechanisms or roller conveyor mechanisms. The good product conveyor device 233 and the bad product conveyor device 234 may use continuous conveying devices such as conveyor belts or conveyor chains, or may use transfer tools such as transfer vehicles.

[0118] See also Figure 1As shown, in one embodiment of the sorting and unloading device 232, the sorting and unloading device 232 includes a testing mechanism 2321, an unloading robot 2322 and a module fixture 2323. The testing mechanism 2321 is arranged above the module conveying line 231, and is used to detect the assembly status of the battery module 35 on the module conveying line 231. If the battery module 35 passes the test, the unloading robot 2322 and the module fixture 2323 cooperate to transfer the battery module 35 to the good product conveying device 233. If the battery module 35 fails the test, the unloading robot 2322 and the module fixture 2323 cooperate to transfer the battery module 35 to the defective product conveying device 234.

[0119] The above-mentioned testing mechanism 2321 can use a CCD camera or other testing equipment required for other testing items, the unloading robot 2322 can use an existing robot, and the module fixture 2323 can use an existing battery module fixture.

[0120] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic stacking device for energy storage lithium battery modules, characterized in that: include: frame; A pretreatment device, a first conveyor line, a second conveyor line, a third conveyor line, a fourth conveyor line, a transfer device, a glue peeling and gluing device and a pre-stacking device are arranged on the frame, the first conveyor line is used to convey battery cells, the pretreatment device is used to pre-treat the battery cells on the first conveyor line, the transfer device is used to transfer the pretreated battery cells to the second conveyor line or the fourth conveyor line, or flip the pretreated battery cells 180° and transfer them to the third conveyor line, the glue peeling and gluing device is used to peel off a layer of release paper of the rubber pad, and stick the rubber pad on the battery cells of the second conveyor line and / or the third conveyor line, and peel off another layer of release paper of the rubber pad on the second conveyor line and / or the third conveyor line, the pre-stacking device is used to grab the battery cells of the second conveyor line, the third conveyor line or the fourth conveyor line and transfer them to the second conveyor line or the third conveyor line, so as to stack and bond two of the battery cells to form a battery cell assembly; The component loading device, stacking pressurizing device and unloading device are arranged on the frame, the component loading device is used to transport the battery cell assembly and the end plate to the stacking pressurizing device, the stacking pressurizing device is used to stack and compress a plurality of the battery cell assemblies and two end plates to form a battery module, and the unloading device is used to unload the battery module stacked by the stacking pressurizing device.

2. The automatic stacking device for energy storage lithium battery modules according to claim 1, characterized in that: The frame is provided with a rubber pad loading station, a rubber peeling station and a rubber pasting loading station, and the rubber peeling and pasting device comprises: A rubber pad feeding mechanism is provided on the frame and is used to transport the rubber pads one by one to the rubber pad feeding station; A rotating clamping mechanism, disposed on the frame, and used to clamp or loosen the lower layer of release paper of the rubber pad of the glue peeling station, and flip the lower layer of release paper; A first transfer mechanism is provided on the frame and is used to grab the rubber pad at the rubber pad loading station and transfer it to the rubber peeling station, and drive the rubber pad at the rubber peeling station to transfer it to the rubber pasting loading station; A second transfer mechanism is provided on the frame and is used to grab the rubber pads from the glue loading station and transfer them to the battery cells on the second conveyor line or the third conveyor line; An oblique clamping mechanism and a third transfer mechanism, wherein the third transfer mechanism is arranged on the frame and is transmission-connected with the oblique clamping mechanism, and the third transfer mechanism and the oblique clamping mechanism are combined to peel off the upper release paper of the rubber pad.

3. The automatic stacking device for energy storage lithium battery modules according to claim 2 is characterized in that: The rotary clamping mechanism includes two rotary driving members, a clamping driving member and a clamping arm. The two rotary driving members are symmetrically arranged on the frame and are transmission-connected to the clamping driving members. The output end of the clamping driving member is connected to the two clamping arms. The clamping driving member is used to drive the two clamping arms to move closer to or away from each other. At least two clamping blocks are provided in the length direction of the clamping arms. The clamping blocks of the two clamping arms correspond one to one and are used to clamp or loosen the lower layer of release paper of the rubber pad.

4. The automatic stacking device for energy storage lithium battery modules according to claim 2, characterized in that: The oblique clamping mechanism includes at least two clamping jaws, and the at least two clamping jaws are respectively arranged obliquely relative to the second conveying line and the third conveying line to clamp or loosen the upper release paper of the rubber pad of the second conveying line and / or the third conveying line.

5. The automatic stacking device for energy storage lithium battery modules according to claim 4, characterized in that: The adhesive peeling and adhesive applying device further comprises: A visual inspection component and a waste bucket, wherein the visual inspection component is arranged on the frame or the third transfer mechanism and is used to detect the position of the upper release paper of the rubber pad of the second conveyor line and / or the third conveyor line, and detect whether the upper release paper is peeled off, and detect the position of the waste bucket, wherein the waste bucket is used to accommodate the peeled upper release paper; A waste hopper and a glue tearing detection component, wherein the waste hopper is arranged on the frame and is located below the rotating clamping mechanism, the waste hopper is used to collect the lower layer of release paper that has been peeled off, the glue tearing detection component is arranged on the frame or the waste hopper and is arranged opposite to the glue tearing station, and the glue tearing detection component is used to detect whether the lower layer of release paper has been peeled off.

6. The automatic stacking device for energy storage lithium battery modules according to claim 2, characterized in that: The rubber pad loading station, the rubber peeling station and the rubber application loading station are sequentially arranged in the transverse direction, the first transfer mechanism and the second transfer mechanism both include a transverse moving drive member, a lifting drive member and an adsorption head, and the second transfer mechanism also includes a longitudinal drive member and a rotating drive member; Among them, the adsorption head is used to adsorb or release the rubber pad, the lateral movement driving member is used to drive the adsorption head to translate horizontally, the lifting driving member is used to drive the adsorption head to lift and lower, the longitudinal driving member is used to drive the adsorption head to translate longitudinally, and the rotating driving member is used to drive the adsorption head to rotate vertically.

7. The automatic stacking device for energy storage lithium battery modules according to any one of claims 1 to 6, characterized in that: The transfer device comprises: A turning table, disposed on one side of the first conveyor line and used for carrying the battery cells; Two battery cell clamps, both used to clamp or release the battery cell; A transplanting mechanism, a flipping mechanism and a position adjustment mechanism, wherein the transplanting mechanism and the position adjustment mechanism are both arranged on the frame, the transplanting mechanism is transmission-connected to one of the battery cell clamps, the position adjustment mechanism is transmission-connected to the flipping mechanism, and the flipping mechanism is transmission-connected to the other battery cell clamp; Among them, the transplanting mechanism and one of the battery cell clamps are combined to transfer the pre-treated battery cells to the second conveyor line, the fourth conveyor line or the turning table, and to transfer the flipped battery cells on the turning table to the third conveyor line; the position adjustment mechanism, the flipping mechanism and another battery cell clamp combination are used to flip the battery cells on the turning table 180° and adjust the position of the battery cells on the turning table.

8. The automatic stacking device for energy storage lithium battery modules according to any one of claims 1 to 6, characterized in that: A battery cell testing station and a cleaning station are provided on the first conveyor line, and the pretreatment device includes a battery cell feeding mechanism, a receiving mechanism, an OCV testing mechanism, a plasma cleaning mechanism and an NG conveyor line. The battery cell feeding mechanism is used to transport the battery cells to the receiving mechanism, and the receiving mechanism is used to receive the battery cells transported by the battery cell feeding mechanism and place the battery cells on the battery cell testing station of the first conveyor line. The OCV testing mechanism is used to perform OCV testing on the battery cells at the battery cell testing station, and the plasma cleaning mechanism is used to perform plasma cleaning on the battery cells at the cleaning station. The transfer device is also used to transfer the battery cells that fail the test on the first conveyor line to the NG conveyor line.

9. The automatic stacking device for energy storage lithium battery modules according to claim 8, characterized in that: The plasma cleaning mechanism includes a nozzle, a nozzle driving mechanism and a battery cell driving mechanism. The nozzle is arranged relative to the cleaning station. The nozzle driving mechanism and the battery cell driving mechanism are both arranged on the frame. The nozzle driving mechanism is transmission-connected to the nozzle. The combination of the nozzle driving mechanism and the battery cell driving mechanism is used to drive the relative movement of the nozzle and the battery cell of the cleaning station.

10. The automatic stacking device for energy storage lithium battery modules according to any one of claims 1, 2, 3, 4, 5, 6 and 9, characterized in that: The stacking pressurizing device comprises: A carrier plate, a carrier plate driving mechanism, a lower pressing plate and a lower pressing driving mechanism, wherein the carrier plate is used to carry the battery module, the carrier plate driving mechanism is arranged on the frame and is in driving connection with the carrier plate, the carrier plate driving mechanism is used to drive the carrier plate to move up and down, the lower pressing plate is arranged relative to the carrier plate up and down, the lower pressing driving mechanism is in driving connection with the lower pressing plate, and the lower pressing driving mechanism is used to drive the lower pressing plate to move up and down; A left pressure plate, a left pressure drive mechanism, a right pressure plate and a right pressure drive mechanism, wherein the left pressure plate and the right pressure plate are respectively located on both sides of the module conveyor line, the left pressure drive mechanism and the right pressure drive mechanism are both arranged on the frame, the left pressure drive mechanism is transmission-connected with the left pressure plate, the right pressure drive mechanism is transmission-connected with the right pressure plate, and the left pressure drive mechanism and the right pressure drive mechanism are combined to drive the left pressure plate and the right pressure plate to approach or move away from each other; A rear pressure plate, a rear pressure driving mechanism, a front pressure plate and a front pressure driving mechanism, wherein the rear pressure plate and the front pressure plate are arranged along the conveying direction of the module conveying line, the rear pressure driving mechanism and the front pressure driving mechanism are both arranged on the frame, the rear pressure driving mechanism is transmission-connected with the rear pressure plate, the front pressure driving mechanism is transmission-connected with the front pressure plate, and the rear pressure driving mechanism and the front pressure driving mechanism are combined to drive the rear pressure plate and the front pressure plate to approach or move away from each other; The carrier plate, the lower pressing plate, the left pressing plate, the right pressing plate, the rear pressing plate and the front pressing plate are combined to form a pressing space for pressing the battery module.

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