Ear folding device and battery cell production equipment

Abstract

An embodiment of the present invention discloses an ear folding device and battery cell production equipment. The ear folding device includes a frame, a transfer mechanism, a first ear pulling mechanism and a second ear pulling mechanism. The first ear pulling mechanism is used to flatten the first pole ear toward the outside of the battery cell body to bend the first pole ear, and the bending extension direction of the first pole ear is used as a reference. The second ear pulling mechanism is used to flatten the second pole ear toward the outside of the battery cell body, and make the bending extension direction of the second pole ear and the bending extension direction of the first pole ear arranged according to a preset angle to meet the bending requirements of the pole ear. The flattening direction of the second pole ear by the second ear pulling mechanism is adjusted so that the second pole ear is arranged at any angle relative to the first pole ear. The accuracy of the angular arrangement between the first pole ear and the second pole ear after bending can be guaranteed, which is convenient for subsequent shell packaging and improves product quality.

Description

Technical Field

[0001] The present invention relates to the technical field of battery production, and in particular to an ear folding device and battery core production equipment. Background Art

[0002] A battery is a device that generates electrical energy. For example, storage batteries, widely used in various fields, are reusable batteries. The lithium batteries in mobile phones and laptops are examples of this type of battery. During battery production, a battery typically consists of a body and positive and negative tabs extending from different locations within the body. Because these tabs extend from different locations, they are not aligned. To facilitate packaging in a battery case, these tabs need to be bent.

[0003] The shape of the tab after bending will affect subsequent processing, which in turn affects the quality of the final product. Often, after the tab is bent, there is an error in the angle between the positive tab and the negative tab, which makes it inconvenient to package during subsequent processing, resulting in poor product quality. Summary of the Invention

[0004] The purpose of the present invention is to propose an ear folding device and battery cell production equipment, aiming to solve the problem that after the electrode ears of the existing battery cells are bent, there is an error in the angle between the positive electrode ears and the negative electrode ears, which makes packaging inconvenient during subsequent processing and leads to poor product quality.

[0005] In a first aspect, the present invention provides an ear folding device for bending a tab of a battery cell, wherein the battery cell includes a body and a first tab and a second tab connected to the body. The ear folding device includes a frame, a transport mechanism, a first tab pulling mechanism, and a second tab pulling mechanism, wherein the transport mechanism, the first tab pulling mechanism, and the second tab pulling mechanism are all mounted on the frame.

[0006] The first ear-pulling mechanism is used to flatten the first pole ear toward the outside of the body, and the second ear-pulling mechanism is used to flatten the second pole ear toward the outside of the body. The flattening direction of the second pole ear by the second ear-pulling mechanism is adjusted so that the second pole ear is arranged at any angle relative to the first pole ear. The transport mechanism is used to transport the battery cells to the first ear-pulling mechanism and the second ear-pulling mechanism in sequence.

[0007] In a second aspect, the present invention further provides a battery cell production device comprising the ear folding device of any of the above embodiments.

[0008] The embodiments of the present invention have the following beneficial effects:

[0009] By adopting the ear folding device and battery cell production equipment of the present invention, the first ear-pulling mechanism flattens the first pole ear toward the outside of the main body to bend the first pole ear, and takes the bending extension direction of the first pole ear as a reference; the second ear-pulling mechanism flattens the second pole ear toward the outside of the main body, and arranges the bending extension direction of the second pole ear and the bending extension direction of the first pole ear according to a preset angle to meet the bending requirements of the pole ear; by adjusting the flattening direction of the second pole ear by the second ear-pulling mechanism, the second pole ear can be arranged at any angle relative to the first pole ear, thereby realizing the adjustment of the arrangement angle of the first pole ear and the second pole ear; on the one hand, the accuracy of the angular arrangement between the first pole ear and the second pole ear after bending can be ensured, which is convenient for subsequent shell packaging and improves product quality; on the other hand, by arranging the second pole ear at any angle relative to the first pole ear, the ear-folding device can bend the battery cell pole ear to any angle requirement, thereby having high production adaptability. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0011] in:

[0012] Figure 1 Schematic diagram of an ear folding device in one embodiment.

[0013] Figure 2 for Figure 1 Schematic diagram of the feeding module in the ear folding device shown.

[0014] Figure 3 for Figure 1 Schematic diagram of the material receiving module and the second adsorption seat in the ear folding device shown.

[0015] Figure 4 for Figure 1 Schematic diagram of the transfer mechanism in the ear folding device shown.

[0016] Figure 5 for Figure 1 Schematic diagram of the first ear-moving mechanism and the third adsorption seat in the ear-folding device shown.

[0017] Figure 6 for Figure 1 Schematic diagram of the second ear-moving mechanism and the first adsorption seat in the ear-folding device shown.

[0018] Figure 7 for Figure 6 Schematic diagram of the second ear-pulling mechanism shown.

[0019] Figure 8 for Figure 1 Schematic diagram of the hot pressing mechanism in the ear folding device shown.

[0020] Figure 9 for Figure 1 Schematic diagram of the first ear folding mechanism and the third adsorption seat in the ear folding device shown.

[0021] Figure 10 for Figure 1 Schematic diagram of the second ear folding mechanism and the third adsorption seat in the ear folding device shown.

[0022] Figure 11 for Figure 1 Schematic diagram of the detection mechanism in the ear folding device shown.

[0023] Figure 12 for Figure 1 Schematic diagram of the unloading mechanism and waste box in the ear folding device shown.

[0024] Figure 13 for Figure 1 Schematic diagram of the shaping mechanism in the ear folding device shown.

[0025] Figure 14 This is a flow chart of flattening the first tab of a battery cell according to an embodiment.

[0026] Figure 15 for Figure 14 Flowchart showing the second tab of the battery cell being flattened.

[0027] Figure 16 for Figure 15 Flowchart showing how the first and second tabs of a battery cell are bent.

[0028] Reference numerals: 10, battery cell; 11, body; 12, first tab; 121, first part; 122, second part; 123, third part; 13, second tab; 131, fourth part; 132, fifth part; 133, sixth part;

[0029] 100, frame; 200, transfer mechanism; 210, first drive motor; 220, rotating table; 240, clamping assembly; 201, second adsorption seat; 202, third adsorption seat; 300, loading mechanism; 310, feeding module; 311, rotating frame; 312, motor assembly; 313, first clamping jaw; 314, second clamping jaw; 315, first cylinder; 320, receiving module; 321, third clamping jaw; 322, sixth drive assembly; 32 3. Seventh drive assembly; 324. Eighth drive assembly; 325. Ninth drive assembly; 410. First ear-pulling mechanism; 411. Fourth drive assembly; 412. Fifth drive assembly; 413. First ear-pulling member; 414. Fixing seat; 420. Second ear-pulling mechanism; 421. Adjustment assembly; 4211. Adjustment plate; 4212. Adjustment hole; 4213. Adjustment member; 422. First drive assembly; 423. Second ear-pulling member; 4231. First ear-pulling mechanism Plate; 4232, second shift plate; 4233, third shift plate; 424, second drive assembly; 425, third drive assembly; 426, first adsorption seat; 510, first folding ear mechanism; 511, first folding ear member; 501, second drive motor; 502, screw and nut transmission mechanism; 520, second folding ear mechanism; 521, second folding ear member; 610, hot pressing mechanism; 611, first side pressure plate; 612, second side pressure plate; 613, first displacement Component; 614, second displacement component; 620, detection mechanism; 621, mounting plate; 6211, mounting hole; 622, detection drive component; 623, detection piece; 630, unloading mechanism; 631, unloading fixture; 632, unloading drive module; 640, shaping mechanism; 641, fixed claw; 642, rotating component; 643, sensing component; 644, shaping claw; 650, visual detection component; 710, waste box; 720, waste box. DETAILED DESCRIPTION

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0031] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, the descriptions of "first", "second", etc. in the present invention are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the said features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0033] An embodiment of the present invention provides an ear folding device, which is mainly used to bend the pole ear of a battery cell to facilitate the subsequent packaging of the battery cell into a shell and ensure product quality.

[0034] See also Figure 1 and Figure 2 In one embodiment, the folding ear device frame 100, the transfer mechanism 200, the first ear-pulling mechanism 410 and the second ear-pulling mechanism 420 are all installed on the frame 100, and the transfer mechanism 200 is used to transfer the battery cells 10 to the first ear-pulling mechanism 410 and the second ear-pulling mechanism 420 in sequence.

[0035] In this example, see Figures 14 to 16 The battery cell 10 includes a body 11 and a first pole tab 12 and a second pole tab 13 connected to the body 11. The first pole tab mechanism 410 is used to flatten the first pole tab 12 toward the outside of the body 11, and the second pole tab mechanism 420 is used to flatten the second pole tab 13 toward the outside of the body 11. The flattening direction of the second pole tab 13 by the second pole tab mechanism 420 is adjusted so that the second pole tab 13 is arranged at any angle relative to the first pole tab 12.

[0036] It can be understood that the first ear-pulling mechanism 410 flattens the first pole ear 12 toward the outside of the body 11 to bend the first pole ear 12, and takes the bending extension direction of the first pole ear 12 as a reference, and the second ear-pulling mechanism 420 flattens the second pole ear 13 toward the outside of the body 11, and makes the bending extension direction of the second pole ear 13 and the bending extension direction of the first pole ear 12 arranged according to a preset angle to meet the bending requirements of the pole ear. By adjusting the flattening direction of the second pole ear 13 by the second ear-pulling mechanism 420, the second pole ear 13 can be arranged at any angle relative to the first pole ear 12, thereby realizing the adjustment of the arrangement angle of the first pole ear 12 and the second pole ear 13. On the one hand, the accuracy of the angular arrangement between the first pole ear 12 and the second pole ear 13 after bending can be guaranteed, which is convenient for subsequent shell packaging and improves product quality. On the other hand, by arranging the second pole ear 13 at any angle relative to the first pole ear 12, the ear-folding device can bend the pole ear of the battery cell 10 to any angle requirement, and has high production adaptability.

[0037] In addition, since the first tab 12 and the second tab 13 are respectively flattened and stretched by the first tab 410 and the second tab 420, the flatness of the first tab 12 and the second tab 13 can be improved, thereby improving the quality of the product after packaging.

[0038] In one embodiment, see Figure 6 and Figure 7 The second ear-pulling mechanism 420 includes an adjustment component 421, a first drive component 422 and a plurality of second ear-pulling members 423. The first drive component 422 includes a fixed end and a movable end that can move relative to the fixed end. The plurality of second ear-pulling members 423 are all installed on the movable end of the first drive component 422 according to a preset position. The adjustment component 421 is used to adjust the positions of the first drive component 422 and the plurality of second ear-pulling members 423 relative to the second pole lug 13, so that the first drive component 422 can drive one of the plurality of second ear-pulling members 423 to flatten the second pole lug 13 along a preset direction.

[0039] Through the above-mentioned setting, the first driving component 422 can drive one of the multiple second ear members 423 to flatten the second pole ear 13 along a preset direction to bend the second pole ear 13 of the battery cell 10. Since the adjustment component 421 can adjust the position of the first driving component 422, it can also adjust the positions of the multiple second ear members 423 relative to the second pole ear 13. Each second ear member 423 is used to flatten the second pole ear 13 along different directions, so that the first pole ear 12 and the second pole ear 13 are arranged at different angles to adapt to different shell packaging requirements.

[0040] Furthermore, in this embodiment, the adjustment assembly 421 includes an adjustment plate 4211 and an adjustment member 4213. The adjustment plate 4211 is provided with a plurality of adjustment holes 4212. The adjustment member 4213 can penetrate the fixed end of the first drive assembly 422 and be detachably connected to the wall of one of the plurality of adjustment holes 4212, so that the first drive assembly 422 can be adjustably mounted on the adjustment plate 4211. By mounting the fixed end of the first drive assembly 422 at different positions on the adjustment plate 4211, the position of the first drive assembly 422 relative to the second tab 13 can be adjusted, and the position of the plurality of second tab members 423 relative to the second tab 13 can be adjusted simultaneously.

[0041] Optionally, the fixed end of the first drive component 422 can be adjustably installed at the first adjustment position, the second adjustment position and the third adjustment position on the adjustment plate 4211, and the second dial ear members 423 are provided with three, namely the first dial plate 4231, the second dial plate 4232 and the third dial plate 4233. The first dial plate 4231, the second dial plate 4232 and the third dial plate 4233 are respectively installed at the first installation position, the second installation position and the third installation position of the fixed end of the first drive component 422.

[0042] Please also refer to Figure 15 When the fixed end of the first driving component 422 is adjusted to the first adjustment position, the first dial plate 4231 is close to the second pole lug 13. At this time, the first driving component 422 can drive the first dial plate 4231 to level the second pole lug 13, and make the first pole lug 12 and the second pole lug 13 arranged at 180 degrees; when the fixed end of the first driving component 422 is adjusted to the second adjustment position, the second dial plate 4232 is close to the second pole lug 13. At this time, the first driving component 422 can drive the second dial plate 4232 to level the second pole lug 13, and make the first pole lug 12 and the second pole lug 13 arranged at 90 degrees; when the fixed end of the first driving component 422 is adjusted to the third adjustment position, the third dial plate 4233 is close to the second pole lug 13. At this time, the first driving component 422 can drive the third dial plate 4233 to level the second pole lug 13, and make the first pole lug 12 and the second pole lug 13 arranged at 60 degrees.

[0043] It is understandable that in this embodiment, the first pole tab 12 and the second pole tab 13 can also be arranged at an angle of 75 degrees, 100 degrees or other angles, and the preset arrangement angle between the first pole tab 12 and the second pole tab 13 can be adjusted according to the specific production requirements of the battery.

[0044] Of course, in other embodiments, the adjustment component 421 is also selected as a cylinder drive component, a motor drive component or other automatic drive component. The automatic drive component can realize automatic drive control of the position of the first drive component 422 and multiple second ear pieces 423 relative to the second pole ear 13, which has a higher degree of automation. However, compared with the adjustment control scheme of the adjustment plate 4211 and the adjustment piece 4213, the cost will be increased to a certain extent.

[0045] In one embodiment, please continue to refer to Figure 6 and Figure 7 The second ear-pulling mechanism 420 further includes a second drive assembly 424, a third drive assembly 425, and a first adsorption seat 426. The first adsorption seat 426 is mounted on the frame 100 and is used to adsorb and fix the battery cell 10. The second drive assembly 424 is connected to the adjustment assembly 421 and is used to drive the adjustment assembly 421 to move along a first direction. The third drive assembly 425 is connected to the second drive assembly 424 and is used to drive the second drive assembly 424 to move along a second direction. The preset direction is set at an angle to the first direction and the second direction. Specifically, the first adsorption seat 426 is a vacuum clamp. Optionally, the first adsorption seat 426 has two adsorption positions for adsorbing and fixing the battery cell 10.

[0046] The first adsorption seat 426 can fix the battery cell 10, facilitating the second lug 13 of the battery cell 10 to be leveled by the second lug member 423. By controlling the displacement of the first drive assembly 422 by the second drive assembly 424 and the third drive assembly 425, one of the plurality of second lug members 423 can be brought close to the second lug 13 of the battery cell 10. The first drive assembly 422 can then drive the second lug member 423 to level the second lug 13 of the battery cell 10.

[0047] In a more specific embodiment, the second direction is a direction perpendicular to the horizontal plane, that is, the third drive assembly 425 can drive the second drive assembly 424, thereby causing the second drive assembly 424, the first drive assembly 422, and the plurality of second ear-pulling members 423 to move vertically. The first direction is a direction parallel to the horizontal plane, that is, the second drive assembly 424 can drive the first drive assembly 422 and the plurality of second ear-pulling members 423 to move horizontally. The driving direction of the second ear-pulling members 423 by the first drive assembly 422 is also parallel to the horizontal plane, but the driving direction of the first drive assembly 422 and the driving direction of the second drive assembly 424 are arranged at an angle on the horizontal plane. Thus, the second ear-pulling member 423 can be moved arbitrarily within a travel range in three-dimensional space through the first drive assembly 422, the second drive assembly 424, and the third drive assembly 425.

[0048] In one embodiment, see Figure 5The first lug-pulling mechanism 410 includes a fourth drive assembly 411, a fifth drive assembly 412, and a first lug-pulling member 413. The fourth drive assembly 411 is connected to the first lug-pulling member 413 and is used to drive the first lug-pulling member 413 to approach the first pole lug 12. The fifth drive assembly 412 is mounted on the frame 100 and is used to drive the fourth drive assembly 411 and the first lug-pulling member 413 to move so that the first lug-pulling member 413 can be leveled with the first pole lug 12. Through the above arrangement, the first lug-pulling member 413 can be positionally driven so that the first lug-pulling member 413 can level the first pole lug 12 according to a preset trajectory. Optionally, the fourth drive assembly 411 and the fifth drive assembly 412 are both cylinder drive components.

[0049] Furthermore, in this embodiment, the first lug-pulling mechanism 410 further includes a fixed base 414, the bottom of which is fixed to the frame 100, and a fifth drive assembly 412 is mounted on the top of the fixed base 414. The fourth drive assembly 411 is a linear cylinder that can drive the first lug-pulling member 413 to move vertically to approach the first tab 12 of the battery cell 10. The fifth drive assembly 412 is a rotary cylinder that can drive the fourth drive assembly 411 and the first lug-pulling member 413 to rotate so that the first lug-pulling member 413 moves and flattens the first tab 12. Of course, in other embodiments, the fifth drive assembly 412 can also be a linear cylinder that can drive the fourth drive assembly 411 and the first lug-pulling member 413 to move horizontally, and the horizontal and linear movement of the first lug-pulling member 413 can also flatten the first tab 12.

[0050] In one embodiment, see Figure 9 and Figure 10 The ear folding device also includes a first ear folding mechanism 510 and a second ear folding mechanism 520. The transfer mechanism 200 can transfer the battery cells 10 at the second ear folding mechanism 420 to the first ear folding mechanism 510 and the second ear folding mechanism 520 in sequence; the first ear folding mechanism 510 and the second ear folding mechanism 520 are both arranged on the rack 100.

[0051] In this embodiment, the first ear folding mechanism 510 can bend part of the first pole ear 12 to the side wall of the main body 11. The first ear folding mechanism 510 can bend the first pole ear 12 processed by the first ear pulling mechanism 410 again, so that part of the first pole ear 12 is bent to the side wall of the main body 11. At this time, the first pole ear 12 includes a first part 121 attached to the upper surface of the main body 11, a second part 122 bent to the side wall of the main body 11, and a third part 123 parallel to the first part 121. The first pole ear 12 processed by the first ear pulling mechanism 410 and the first ear folding mechanism 510 is Z-shaped.

[0052] In this embodiment, one of the first ear folding mechanism 510 and the second ear folding mechanism 520 can bend part of the second pole ear 13 to the side wall of the main body 11, so that part of the second pole ear 13 is bent to the side wall of the main body 11. At this time, the second pole ear 13 includes a fourth part 131 attached to the upper surface of the main body 11, a fifth part 132 bent to the side wall of the main body 11, and a sixth part 133 parallel to the fourth part 131. The second pole ear 13 processed by the second ear pulling mechanism 420, and the first ear folding mechanism 510 or the second ear folding mechanism 520 is Z-shaped.

[0053] Furthermore, the first folding ear member 511 of the first folding ear mechanism 510 and the second folding ear member 521 of the second folding ear mechanism 520 are both provided with four claws. By folding the first and second folding ears by the four-claw folding ear member, the influence of stress on the battery cell 10 body 11 during the processing can be reduced, thereby ensuring the integrity of the battery cell 10.

[0054] It is understandable that since the first pole ear 12 and the second pole ear 13 may be arranged at different angles, two specifications of folding ear pieces need to be provided to adapt to different angle processing requirements. At the same time, the distance between the four claws in the folding ear piece can be adjusted according to the size specifications of the battery cell 10 to adapt to the size of the battery cell 10.

[0055] Please also refer to Figure 16 For example, when the first electrode tab 12 and the second electrode tab 13 are arranged at an angle of 180 degrees, since the first folding ear member 511 has four claws, two of the four claws that are oppositely arranged can correspond to the first electrode tab 12 and the second electrode tab 13 respectively, so the first electrode tab 12 and the second electrode tab 13 can be bent at one time, that is, only the first folding ear mechanism 510 is used to perform the ear folding process.

[0056] When the first pole ear 12 and the second pole ear 13 are arranged at an angle of 90 degrees, since the first folding ear member 511 has four claws, two adjacent claws of the four claws can correspond to the first pole ear 12 and the second pole ear 13 respectively, so the first pole ear 12 and the second pole ear 13 can be bent at one time, that is, only the first folding ear mechanism 510 is used to perform the ear folding process.

[0057] When the first pole ear 12 and the second pole ear 13 are arranged at an angle of 60 degrees, since the first folding ear member 511 has four claws, the first pole ear 12 can be aligned with one of the four claws in the first folding ear mechanism 510, so that the first pole ear 12 can be folded using the first folding ear mechanism 510, but the second pole ear 13 will be misaligned with the four claws in the first folding ear member 511, and then the battery cell 10 needs to be transferred to the second folding ear mechanism 520, and the second pole ear 13 can be aligned with one of the four claws in the second folding ear member 521, so that the second pole ear 13 can be folded using the second folding ear mechanism 520.

[0058] It can be seen from this that when the angle between the first pole ear 12 and the second pole ear 13 can correspond to the four claw positions of the first folding ear member 511, the folding processing of the first pole ear 12 and the second pole ear 13 can be completed only by the first folding ear mechanism 510. When the angle between the first pole ear 12 and the second pole ear 13 cannot correspond to the four claw positions of the first folding ear member 511, a second folding ear member 521 of a second folding ear mechanism 520 is required to perform the folding processing of the second pole ear 13.

[0059] In addition, the first folding ear mechanism 510 and the second folding ear mechanism 520 both include a second drive motor 501 and a screw-nut transmission mechanism 502. The second drive motor 501 is used to control the displacement of the folding ear member, making the drive control more precise.

[0060] In one embodiment, see Figure 2 and Figure 3 The folding ear device also includes a loading mechanism 300 and a second adsorption seat 201. The loading mechanism 300 and the second adsorption seat 201 are both arranged on the frame 100. The second adsorption seat 201 is provided with multiple adsorption positions, which are used to adsorb and fix the battery cells 10. The loading mechanism 300 is used to load multiple battery cells 10 to each adsorption position in sequence; multiple battery cells 10 can be loaded on the second adsorption seat 201 at one time through the loading mechanism 300.

[0061] In this example, see Figure 4 The transfer mechanism 200 includes a first driving motor 210, a rotating table 220, and a plurality of clamping components 240 arranged along the circumference of the rotating table 220. The first ear-pulling mechanism 410, the second ear-pulling mechanism 420, the first ear-folding mechanism 510, the second ear-folding mechanism 520 and other related processing mechanisms are arranged on the circumferential edge of the rotating table 220 in a preset order.

[0062] The clamping assembly 240 has a plurality of clamping positions, which are used to clamp and fix the battery cells 10 , so that the clamping assembly 240 can clamp a plurality of battery cells 10 at the same time and realize the position transfer of the battery cells 10 . Specifically, the first drive motor 210 is transmission-connected to the turntable 220 and is used to drive the turntable 220 to rotate. The rotation of the turntable 220 can drive each clamping assembly 240 to move, so as to transfer each clamping assembly 240 to the first ear-pulling mechanism 410, the second ear-pulling mechanism 420, the first ear-folding mechanism 510 and the second ear-folding mechanism 520 in sequence, and transfer multiple battery cells 10 to the first ear-pulling mechanism 410, the second ear-pulling mechanism 420, the first ear-folding mechanism 510 and the second ear-folding mechanism 520 at the same time. At the first ear-pulling mechanism 410, the second ear-pulling mechanism 420, the first ear-folding mechanism 510 and the second ear-folding mechanism 520, each relevant processing mechanism can simultaneously perform corresponding processes on multiple battery cells 10 to improve the processing efficiency of the battery cells 10.

[0063] It can be understood that a third adsorption seat 202 is provided at the relative position of each relevant processing mechanism, and each third adsorption seat 202 has multiple adsorption positions for adsorbing and fixing the battery cells 10. The clamping assembly 240 can simultaneously transfer multiple battery cells 10 to each relevant processing mechanism and place them on the corresponding third adsorption seat 202, so that the relevant processing mechanism can process the multiple battery cells 10 on the third adsorption seat 202.

[0064] Optionally, the second adsorption seat 201 and the third adsorption seat 202 are each provided with two adsorption positions, and the clamping assembly 240 has two corresponding clamping positions. Of course, in other embodiments, the second adsorption seat 201 and the third adsorption seat 202 can also be provided with three, four, or other number of adsorption positions, and the clamping assembly 240 has three, four, or other number of clamping positions.

[0065] Specifically, the clamping assembly 240 includes a first side jaw, a second side jaw, and a clamping cylinder. The first side jaw and the second side jaw are arranged opposite to each other. The clamping cylinder can drive the first side jaw and the second side jaw to move closer to or away from each other to clamp or release the battery cell 10. Two first side arcuate walls are spaced apart on the first side jaw, and two second side arcuate walls are correspondingly arranged on the second side jaw. After the first side jaw and the second side jaw approach each other, the first side arcuate wall can cooperate with the second side arcuate wall to clamp the body 11 of the battery cell 10. Since the first side arcuate wall and the second side arcuate wall can cooperate to clamp the body 11 of the battery cell 10 of different sizes, the adaptability of the clamping assembly 240 to clamp and transfer the battery cell 10 model can be improved to adapt to the processing of battery cells 10 of different sizes and models. In addition, since the second adsorption seat 201 and the third adsorption seat 202 are both vacuum clamps, they are not restricted by the size and model of the battery cell 10.

[0066] In this example, see Figure 2 and Figure 3 The loading mechanism 300 includes a feeding module 310 and a receiving module 320. The feeding module 310 includes a rotating frame 311, a motor assembly 312 for driving the rotating frame 311 to rotate, and a first clamping jaw 313, a second clamping jaw 314, a first cylinder 315 and a second cylinder arranged on the rotating frame 311. The first clamping jaw 313 and the first cylinder 315 form a first clamping unit, and the second clamping jaw 314 and the second cylinder form a second clamping unit. The first clamping unit and the second clamping unit are respectively arranged on both sides of the rotating frame 311. The motor assembly 312 can drive the rotating frame 311 to rotate 180 degrees to realize the switching of the positions of the first clamping unit and the second clamping unit.

[0067] The receiving module 320 includes a third clamping jaw 321, a sixth drive assembly 322, a seventh drive assembly 323, an eighth drive assembly 324, and a ninth drive assembly 325. The sixth drive assembly 322 is connected to the third clamping jaw 321 and is used to drive the third clamping jaw 321 to rotate. The seventh drive assembly 323 is connected to the sixth drive assembly 322 and is used to drive the sixth drive assembly 322 and the third clamping jaw 321 to move linearly. The eighth drive assembly 324 is connected to the seventh drive assembly 323 and is used to drive the seventh drive assembly 323 to rotate. The ninth drive assembly 325 is connected to the eighth drive assembly 324 and is used to drive the eighth drive assembly 324 to move linearly. Optionally, the sixth drive assembly 322, the seventh drive assembly 323, and the ninth drive assembly 325 are all linear cylinder drive components, and the eighth drive assembly 324 is a rotary cylinder drive component.

[0068] During loading, the first cylinder 315 can drive the first clamping jaw 313 to extend to clamp the battery cell 10, and the motor assembly 312 can drive the rotating frame 311 to rotate to rotate the battery cell 10 and the first clamping jaw 313 180 degrees. The third clamping jaw 321 approaches the first clamping jaw 313 under the drive of the various driving components of the receiving module 320, and catches the battery cell 10 of the first clamping jaw 313. Afterwards, the battery cell 10 is accurately placed on the second adsorption seat 201 through the various driving components to realize the loading of the battery cell 10. Since the receiving module 320 has two loading components, the first clamping jaw 313 and the second clamping jaw 314, the loading efficiency is relatively high.

[0069] Of course, in other embodiments, the second clamping jaw 314 may be removed and only the first clamping jaw 313 may be used for loading materials, or other clamping jaws may be added to further improve the efficiency of the material receiving module 320 .

[0070] In one embodiment, see Figure 8 、 Figure 11 and Figure 12 The ear folding device also includes a hot pressing mechanism 610, a detection mechanism 620 and a feeding mechanism 630. The hot pressing mechanism 610 is arranged on the frame 100 and is located between the second ear pulling mechanism 420 and the first ear folding mechanism 510. The hot pressing mechanism 610 is used to hot press the battery cell 10 transferred from the second ear pulling mechanism 420 to eliminate the air inside the battery cell 10 body 11, making the interior of the battery cell 10 more compact and small, and the surface neat.

[0071] Optional, see Figure 8The hot pressing mechanism 610 includes a first side pressure plate 611, a second side pressure plate 612, a first displacement component 613 that drives the first side pressure plate 611, and a second displacement component 614 that drives the second side pressure plate 612. The first displacement component 613 and the second displacement component 614 can be optionally motor drive components. The first displacement component 613 can be arranged on the side or above the first side pressure plate 611. When the first displacement component 613 can be arranged above the first side pressure plate 611, it can ensure that the first side pressure plate 611 and the second side pressure plate 612 can drive the hot pressing of the battery cell 10 more evenly.

[0072] In this embodiment, the inspection mechanism 620 is provided on the rack 100 and is used to inspect the battery cells 10 transferred from the second ear folding mechanism 520. The unloading mechanism 630 is provided on the rack 100 and is used to discard unqualified battery cells 10 into the waste box 710. The battery cells 10 are inspected by the inspection mechanism 620, and unqualified battery cells 10 are transferred to the waste box 710 by the unloading mechanism 630, while qualified battery cells 10 are transferred to the next process.

[0073] For details, please refer to Figure 11 The detection mechanism 620 includes a mounting plate 621, a detection drive assembly 622, and a plurality of detection members 623. The plurality of detection members 623 are adjustably mounted on the mounting plate 621 to adapt to the various specifications of the tabs of the battery cell 10. The detection drive assembly 622 can drive the mounting plate 621 to move, and the mounting plate 621 drives the detection members 623 to approach the tabs of the battery cell 10 to complete the detection. Optionally, the mounting plate 621 is provided with multiple mounting holes 6211, and the detection members 623 have plug-in posts that plug into the walls of the mounting holes 6211.

[0074] Further, in this embodiment, please refer to Figure 13 The tab folding device further includes a shaping mechanism 640, which is disposed on the frame 100 and is used to shape the battery cell 10 so that the first tab 12 and the second tab 13 are arranged at a preset angle. The battery cell 10 that has passed the inspection by the inspection mechanism 620 is transferred by the unloading mechanism 630 to the shaping mechanism 640 for shaping so that the first tab 12 and the second tab 13 are arranged at a preset angle. This can further improve the accuracy of the angular arrangement between the first tab 12 and the second tab 13 after bending, facilitate subsequent packaging, and improve product quality.

[0075] In this embodiment, the shaping mechanism 640 includes a fixed claw 641 for clamping the battery cell 10, a rotating component 642 for driving the fixed claw 641 to rotate, a sensing component 643 for sensing the pole ear of the battery cell 10, and a shaping claw 644 for arranging the pole ear of the battery cell 10. The sensing component 643 can be an optical fiber, and the rotating component 642 can be a motor drive component. During the specific shaping process, the sensing component 643 senses the position of the first pole ear 12 of the battery cell 10, the rotating component 642 drives the battery cell 10 to rotate, and makes the first pole ear 12 correspond to the position of the shaping claw 644, and the shaping claw 644 adjusts the first pole ear 12. Taking the first pole ear 12 as a reference, the rotating component 642 drives the battery cell 10 to rotate a preset angle, so that the second pole ear 13 corresponds to the shaping claw 644, and the shaping claw 644 adjusts the second pole ear 13. The angle between the first pole ear 12 and the second pole ear 13 is the preset angle. The angle between the first pole ear 12 and the second pole ear 13 can be adjusted to the preset angle through the shaping mechanism 640 to ensure the accuracy of the angle arrangement between the first pole ear 12 and the second pole ear 13.

[0076] For details, please refer to Figure 12 The unloading mechanism 630 includes a unloading fixture 631 and an unloading drive module 632. The unloading drive module 632 is disposed on the frame 100 and is used to drive the unloading fixture 631 to move so as to transfer the battery cell 10 to the waste box 710 or the shaping mechanism 640. Optionally, the unloading fixture 631 has multiple clamping positions and is adapted to the clamping positions of the clamping assembly 240. When the clamping assembly 240 has two clamping positions, the unloading fixture 631 is correspondingly provided with two clamping positions. The unloading fixture 631 can optionally be a vacuum fixture. In addition, since the unloading mechanism 630 can simultaneously clamp and unload multiple battery cells 10, production efficiency can be improved.

[0077] In a more specific embodiment, see Figure 1 and Figure 4 On the rotating table 220 of the transfer mechanism 200, a loading station, a first ear-pulling station, a second ear-pulling station, a hot pressing station, a first ear-folding station, a second ear-folding station, a testing station and a unloading station are arranged in order in the circumferential direction.

[0078] Please also refer to Figure 2 and Figure 3 The loading mechanism 300 is provided at the loading station and is used to load the battery cell 10 onto the second adsorption seat 201. Since the second adsorption seat 201 has two adsorption positions, two battery cells 10 can be placed at the same time.

[0079] Please also refer to Figure 5The first ear-pulling mechanism 410 is arranged at the first ear-pulling station. The clamping component 240 of the transfer mechanism 200 can simultaneously clamp and transfer two battery cells 10 to the first ear-pulling station, and place them on the third adsorption seat 202 for adsorption and fixation. At the first ear-pulling station, the first ear-pulling mechanism 410 works to flatten the first pole ear 12 toward the outside of the body 11.

[0080] Please also refer to Figure 6 and Figure 7 The second tab-pulling mechanism 420 is provided at the second tab-pulling station. The clamping assembly 240 of the transport mechanism 200 can simultaneously clamp and transport the two battery cells 10 to the second tab-pulling station, and place them on the first adsorption seat 426 for adsorption and fixation. At the second tab-pulling station, the second tab-pulling mechanism 420 works to flatten the second tab 13 toward the outside of the body 11. Due to the adjustment of the flattening direction of the second tab 13 by the second tab-pulling mechanism 420, the second tab 13 can be arranged at any angle relative to the first tab 12, so that the first tab 12 and the second tab 13 can be arranged at an angle of 60 degrees, 90 degrees, 180 degrees or other angles.

[0081] Please also refer to Figure 8 The hot pressing mechanism 610 is provided at the hot pressing station, and the clamping assembly 240 of the transfer mechanism 200 can simultaneously clamp and transfer the two battery cells 10 to the hot pressing station, where the hot pressing mechanism 610 performs hot pressing on the two battery cells 10 .

[0082] Please also refer to Figure 9 The first ear folding mechanism 510 is arranged at the first ear folding station. The clamping component 240 of the transfer mechanism 200 can simultaneously clamp and transfer two battery cells 10 to the first ear folding station, and place them on the third adsorption seat 202 for adsorption and fixation. At the first ear folding station, the first ear folding mechanism 510 works to bend part of the first pole ear 12 to the side wall of the main body 11. When the angle between the first pole ear 12 and the second pole ear 13 is 90 degrees or 180 degrees, the first ear folding mechanism 510 can also work to bend part of the second pole ear 13 to the side wall of the main body 11.

[0083] Please also refer to Figure 10 The second ear folding mechanism 520 is arranged at the second ear folding station. The clamping component 240 of the transfer mechanism 200 can simultaneously clamp and transfer two battery cells 10 to the second ear folding station, and place them on the third adsorption seat 202 for adsorption and fixation. At the second ear folding station, when the angle between the first pole tab 12 and the second pole tab 13 is 60 degrees, the second ear folding mechanism 520 works to bend part of the second pole tab 13 to the side wall of the body 11.

[0084] Please also refer to Figure 11The detection mechanism 620 is arranged at the detection station. The clamping component 240 of the transfer mechanism 200 can simultaneously clamp and transfer two battery cells 10 to the detection station, and place them on the third adsorption seat 202 for adsorption and fixation. The detection mechanism 620 detects the battery cells 10.

[0085] Please also refer to Figure 12 The unloading mechanism 630 is arranged at the unloading station. The clamping component 240 of the transfer mechanism 200 can clamp two battery cells 10 and transfer them to the unloading station at the same time. The unloading mechanism 630 transfers the battery cells 10 that have passed the inspection of the detection mechanism 620 to the shaping mechanism 640, and discards the battery cells 10 that have failed the inspection of the detection mechanism 620 into the waste box 710.

[0086] Please also refer to Figure 13 At the shaping mechanism 640 , the shaping mechanism 640 can shape the battery cell 10 to ensure that the two tabs of the battery cell 10 are straight and reduce the angle deviation.

[0087] See also Figure 1 A visual inspection component 650 is also provided to detect whether the angle between the first tab 12 and the second tab 13 of the battery cell 10 is qualified. The qualified battery cell 10 is transferred to the next process, and the unqualified battery cell 10 is thrown into the waste box 720.

[0088] At the same time, each of the above-mentioned adsorption seats has a supporting cylinder to prevent the adsorption seat from moving downward.

[0089] See also Figures 1 to 16 , an embodiment of the battery cell 10 production equipment includes the ear folding device of any of the above embodiments. When the ear folding device is applied to the battery cell 10 production equipment, the first ear pulling mechanism 410 pulls the first pole ear 12 toward the outside of the body 11 to bend the first pole ear 12, and uses the bending extension direction of the first pole ear 12 as a reference, and the second ear pulling mechanism 420 pulls the second pole ear 13 toward the outside of the body 11, and makes the bending extension direction of the second pole ear 13 and the bending extension direction of the first pole ear 12 arranged at a preset angle to meet the bending requirements of the pole ear. Due to the adjustment of the second ear pulling mechanism 420 to the second pole ear 13, the bending extension direction of the second pole ear 13 is adjusted to the preset angle. The flattening direction of the pole ear 13 can make the second pole ear 13 arranged at any angle relative to the first pole ear 12, so as to realize the adjustment of the arrangement angle of the first pole ear 12 and the second pole ear 13. On the one hand, it can ensure the accuracy of the angle arrangement between the first pole ear 12 and the second pole ear 13 after bending, which is convenient for subsequent shell packaging and improves product quality. On the other hand, by arranging the second pole ear 13 at any angle relative to the first pole ear 12, the ear folding device can bend the battery cell 10 pole ear at any angle requirement, which has high production adaptability.

[0090] The above disclosure is merely a preferred embodiment of the present invention and certainly cannot be used to limit the scope of the present invention. Therefore, equivalent changes made according to the claims of the present invention are still within the scope of the present invention.

Claims

1. A folding ear device, characterized in that: The ear folding device is used to bend the tab of the battery cell, the battery cell includes a body and a first tab and a second tab connected to the body, the ear folding device includes a frame, a transport mechanism, a first tab pulling mechanism and a second tab pulling mechanism, and the transport mechanism, the first tab pulling mechanism and the second tab pulling mechanism are all installed on the frame; The first tab-pulling mechanism is used to pull the first tab toward the outside of the body; the second tab-pulling mechanism is used to pull the second tab toward the outside of the body; the transport mechanism is used to transport the battery cell to the first tab-pulling mechanism and the second tab-pulling mechanism in sequence; The second lug-pulling mechanism includes an adjustment assembly, a first drive assembly, and a plurality of second lug-pulling members. The plurality of second lug-pulling members are mounted on a movable end of the first drive assembly according to preset positions. The adjustment assembly is used to adjust the positions of the first drive assembly and the second lug-pulling member relative to the second lug, so that the first drive assembly can drive one of the plurality of second lug-pulling members to level the second lug along a preset direction. The adjustment assembly includes an adjustment plate and an adjustment member provided with multiple adjustment holes. The adjustment member passes through the fixed end of the first drive assembly and is detachably connected to a hole wall of the multiple adjustment holes. By selecting different adjustment holes to change the installation position of the first drive assembly, the flattening direction of the second pole ear is adjusted so that the second pole ear can be arranged at any angle relative to the first pole ear.

2. The ear folding device according to claim 1, characterized in that: The second ear-pulling mechanism also includes a second drive component, a third drive component and a first adsorption seat. The first adsorption seat is installed on the frame and is used to adsorb and fix the battery cell. The second drive component is connected to the adjustment component and is used to drive the adjustment component to move along the first direction. The third drive component is connected to the second drive component and is used to drive the second drive component to move along the second direction. The preset direction is set at an angle to the first direction and the second direction.

3. The ear folding device according to any one of claims 1 to 2, characterized in that: The first ear-pulling mechanism includes a fourth drive assembly, a fifth drive assembly and a first ear-pulling piece. The fourth drive assembly is connected to the first ear-pulling piece and is used to drive the first ear-pulling piece to approach the first pole ear. The fifth drive assembly is installed on the frame and is used to drive the fourth drive assembly and the first ear-pulling piece to move so that the first ear-pulling piece can level the first pole ear.

4. The ear folding device according to claim 3, characterized in that: The folding ear device further includes a first folding ear mechanism and a second folding ear mechanism, and the transport mechanism can transport the battery cell at the second ear mechanism to the first folding ear mechanism and the second folding ear mechanism in sequence; The first ear folding mechanism and the second ear folding mechanism are both arranged on the frame. The first ear folding mechanism can bend part of the first pole ear to the side wall of the body. One of the first ear folding mechanism and the second ear folding mechanism can bend part of the second pole ear to the side wall of the body. The first ear folding piece of the first ear folding mechanism and the second ear folding piece of the second ear folding mechanism are both provided with four claws.

5. The ear folding device according to claim 4, characterized in that: The folding ear device further includes a loading mechanism and a second adsorption seat, both of which are provided on the frame, and the second adsorption seat is provided with a plurality of adsorption positions, the adsorption positions being used to adsorb and fix the battery cells, and the loading mechanism is used to sequentially load the plurality of battery cells to the adsorption positions; The transfer mechanism includes a first drive motor, a turntable and a plurality of clamping assemblies arranged along the circumference of the turntable, the clamping assembly having a plurality of clamping positions, the clamping positions being used to clamp and fix the battery cells, the first drive motor being connected to the turntable in a transmission manner and being used to drive the turntable to rotate, the rotation of the turntable can drive each of the clamping assemblies to move, so as to transfer each of the clamping assemblies to the first ear-pulling mechanism, the second ear-pulling mechanism, the first ear-folding mechanism and the second ear-folding mechanism in sequence.

6. The ear folding device according to claim 4, characterized in that: The ear folding device further includes a hot pressing mechanism, a detection mechanism and a feeding mechanism. The hot pressing mechanism is provided on the frame and located between the second ear pulling mechanism and the first ear folding mechanism. The hot pressing mechanism is used to hot press the battery cell transferred from the second ear pulling mechanism. The detection mechanism is arranged on the frame and is used to detect the battery cells transferred from the second ear folding mechanism. The unloading mechanism is arranged on the frame and is used to discard the unqualified battery cells into a waste box.

7. The ear folding device according to claim 1, characterized in that: The tab folding device further includes a shaping mechanism, which is provided on the frame and is used to shape the battery cell so that the first tab and the second tab are arranged at a preset angle.

8. A battery cell production device, characterized in that: The ear folding device comprises the ear folding device according to any one of claims 1 to 7.

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