Tab shaping device and winding equipment

Abstract

The utility model discloses a pole lug shaping device and a winding device, wherein the pole lug shaping device comprises a conveying member, a positive folding assembly and a negative folding assembly, wherein the conveying member is used to convey a battery cell; the positive folding assembly and the negative folding assembly are sequentially arranged along the conveying direction of the conveying member, and the positive folding assembly and the negative folding assembly sequentially bend the pole lugs of the conveyed battery cell; the positive folding assembly comprises a first driving part and a first bending part, and under the drive of the first driving part, the first bending part can apply a force to the pole lug of the battery cell and bend the pole lug; the negative folding assembly comprises a second driving part and a second bending part, and under the drive of the second driving part, the second bending part can apply a force to the pole lug of the battery cell and bend the pole lug, and the bending direction of the first bending part is opposite to that of the second bending part, so that the pole lug of the battery cell can be positively folded and negatively folded sequentially to meet the requirements of pole lugs of different shapes.

Description

Technical Field

[0001] The utility model relates to the technical field of battery automation equipment, and more specifically, to a tab shaping device and a winding device. Background Art

[0002] In the field of battery manufacturing technology, the tab is a key part of the connection between the battery and the external circuit, and its shape and size are crucial to the performance and safety of the battery. At present, the existing tab shaping device usually bends the tab along the side of the core axis facing the battery cell after the battery cell is wound, so as to facilitate welding and loading into the shell to form a battery structure. However, this tab shaping device can only bend the tab in one direction, and it is difficult to meet the needs of tabs of other shapes. Utility Model Content

[0003] The utility model aims to provide a new technical solution for a tab shaping device and a winding device.

[0004] According to one aspect of the utility model, a tab shaping device is provided, comprising:

[0005] A conveying member, wherein the conveying member is used to convey the battery cell;

[0006] A positive folding assembly and a negative folding assembly, wherein the positive folding assembly and the negative folding assembly are sequentially arranged along the conveying direction of the conveying member, and the positive folding assembly and the negative folding assembly sequentially bend the tabs of the conveyed battery cells;

[0007] The positive folding assembly includes a first driving part and a first bending part, wherein the first bending part is connected to a driving end of the first driving part, and under the drive of the first driving part, the first bending part can apply force to the tab of the battery cell and bend the tab;

[0008] The reverse bending component includes a second driving part and a second bending part, and the second bending part is connected to the driving end of the second driving part. Under the drive of the second driving part, the second bending part can apply force to the pole ear of the battery cell and bend the pole ear, and the bending direction of the first bending part is opposite to the bending direction of the second bending part.

[0009] Optionally, the first bending portion is used to bend the tab of the battery cell in a direction toward the core axis of the battery cell, and the second bending portion is used to bend the tab of the battery cell in a direction away from the core axis of the battery cell.

[0010] Optionally, the first bending portion includes a first folding portion and a second folding portion that are opposite to each other, and a gap is provided between the first folding portion and the second folding portion, and the gap is used to clamp a tab of the battery cell;

[0011] Under the driving of the first driving portion, the first folding portion and the second folding portion can move relative to each other and bend the tab.

[0012] Optionally, the first folding portion and the second folding portion have the same shape.

[0013] Optionally, the second bending portion includes a third folding portion and a fourth folding portion that are opposite to each other. Under the drive of the second driving portion, the third folding portion and the fourth folding portion can move away from each other and bend the tab.

[0014] Optionally, the third folded portion is in an L-shaped structure, and the surface of the third folded portion in contact with the tab is arc-shaped.

[0015] Optionally, the fourth folding portion has the same shape as the third folding portion.

[0016] Optionally, the forward folding assembly further comprises a third driving unit, a driving end of which is connected to the first bending unit, and under the drive of the third driving unit, the first bending unit can move along the axial direction of the battery cell.

[0017] Optionally, the positive folding assembly further comprises a third driving part and a driving plate, the driving end of the third driving part is connected to the driving plate, and the first driving part is arranged on the driving plate;

[0018] Under the drive of the third driving unit, the driving plate can drive the first bending portion to move along the axial direction of the battery core.

[0019] Optionally, the positive folding assembly further comprises a fourth driving part and a support, the driving plate is movably connected to the support, the third driving part and the fourth driving part are arranged on the support, the fourth driving part has an adjustment rod, and the adjustment rod faces the driving plate;

[0020] Under the drive of the fourth driving unit, the adjusting rod can be extended and abutted against the driving plate, or the adjusting rod can be retracted.

[0021] Optionally, the pole ear of the battery cell includes a first part and a second part, the first bending portion is used to apply force to the first part and bend the first part; the second bending portion is used to apply force to the second part and bend the second part, and the bending direction of the second part is opposite to that of the first part.

[0022] Optionally, a clamping assembly is further included, which faces the conveying member and can clamp the conveyed battery cell.

[0023] Optionally, there are two clamping assemblies, one clamping assembly is opposite to the forward folding assembly, and the other clamping assembly is opposite to the reverse folding assembly, and the clamping assemblies can clamp the transported battery cells during bending.

[0024] Optionally, a positioning component is further included, which is located on a side of the forward folding component away from the reverse folding component, and is used to position the transported battery cells.

[0025] Optionally, an adjustment component is further included, wherein the adjustment component is located between the positioning component and the positive folding component, and the adjustment component is used to adjust the position of the tabs of the transported battery cells.

[0026] Optionally, the adjustment component includes an adjustment unit and a detection unit, the detection unit is used to detect the position of the tab of the battery cell being transported, and the adjustment unit is used to adjust the position of the tab of the battery cell being transported.

[0027] Optionally, the adjustment part includes a clamping jaw and a rotating member, the end of the clamping jaw has a clamping rod, the clamping rod is used to clamp the battery cell, and the rotating member can drive the battery cell to rotate until the detection part detects that the position of the battery cell's tab is at a set position.

[0028] Optionally, the rotating member includes a motor, a rotating shaft and a pressure wheel sleeved on the rotating shaft, the output end of the motor is connected to the rotating shaft through a transmission member, and the pressure wheel can abut against the battery core;

[0029] Under the drive of the motor, the transmission member can drive the rotating shaft to rotate, so that the pressure wheel can drive the battery core to rotate.

[0030] According to another aspect of the utility model, a winding device is provided, comprising the above-mentioned pole ear shaping device.

[0031] A technical effect of the utility model is:

[0032] The tab shaping device includes a conveying member, a forward folding assembly and a reverse folding assembly, wherein the conveying member is used to convey the battery cell; the forward folding assembly and the reverse folding assembly are sequentially arranged along the conveying direction of the conveying member, and the forward folding assembly and the reverse folding assembly sequentially bend the tabs of the conveyed battery cell; the forward folding assembly includes a first driving part and a first bending part, wherein the first bending part is connected to the driving end of the first driving part, and under the drive of the first driving part, the first bending part can apply force to the tabs of the battery cell and bend the tabs; the reverse folding assembly includes a second driving part and a second bending part, wherein the second bending part is connected to the driving end of the second driving part, and under the drive of the second driving part, the second bending part can apply force to the tabs of the battery cell and bend the tabs, and the bending direction of the first bending part is opposite to that of the second bending part, so that the tabs of the battery cell can be forward folded and reverse folded sequentially to meet the requirements of tabs of different shapes.

[0033] Other features and advantages of the present invention will become apparent from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The accompanying drawings, which constitute a part of the specification, illustrate embodiments of the present utility model and, together with the description, are used to explain the principles of the present utility model.

[0035] Figure 1 It is a schematic diagram of a tab shaping device according to an embodiment of the utility model;

[0036] Figure 2 It is a schematic diagram of a reverse folding component of an embodiment of the utility model;

[0037] Figure 3 It is a schematic diagram of a positive folding assembly of an embodiment of the utility model;

[0038] Figure 4 is another schematic diagram of a positive folding assembly according to an embodiment of the utility model;

[0039] Figure 5 It is another schematic diagram of a positive folding assembly of an embodiment of the utility model;

[0040] Figure 6 It is a schematic diagram of a positioning component of an embodiment of the utility model;

[0041] Figure 7 is a schematic diagram of an adjustment component of an embodiment of the utility model;

[0042] Figure 8 is another schematic diagram of an adjustment assembly according to an embodiment of the utility model;

[0043] Fig. 9 is another schematic diagram of an adjustment component of an embodiment of the utility model;

[0044] Fig.10 It is a schematic diagram of a clamping assembly according to an embodiment of the utility model;

[0045] Fig.11 It is a schematic diagram of a battery cell according to an embodiment of the utility model.

[0046] Description of reference numerals:

[0047] 001, terminal ear; 0011, first part; 0012, second part;

[0048] 1. Conveying member; 11. Bracket; 2. Forward folding assembly; 21. First driving part; 22. First bending part; 221. First folding part; 222. Second folding part; 23. Third driving part; 24. Driving plate; 25. Fourth driving part; 251. Adjusting rod; 26. Support; 3. Reverse folding assembly; 31. Second driving part; 32. Second bending part; 321. Third folding part; 322. Fourth folding part; 33. Sixth driving part; 4. Clamping assembly; 41. Fixed block; 42. Moving block; 5. Positioning assembly; 51. Moving member; 52. Positioning member; 6. Adjusting assembly; 61. Adjusting part; 611. Clamping claw; 6111. Clamping rod; 612. Rotating member; 6121. Motor; 6122. Rotating shaft; 6123. Pressing wheel; 62. Detecting part; 63. Fifth driving part. DETAILED DESCRIPTION

[0049] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0050] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0051] Techniques and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the techniques and equipment should be considered part of the specification.

[0052] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0053] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0054] The utility model provides a pole ear shaping device, which is used for shaping a pole ear 001 of a battery cell.

[0055] like Figure 1 As shown, the tab shaping device provided by the utility model comprises:

[0056] A conveying member 1, wherein the conveying member 1 is used for conveying battery cells;

[0057] A positive folding component 2 and a negative folding component 3, wherein the positive folding component 2 and the negative folding component 3 are sequentially arranged along the conveying direction of the conveying member 1, and the positive folding component 2 and the negative folding component 3 sequentially bend the tabs 001 of the conveyed battery cells;

[0058] The forward folding assembly 2 and the reverse folding assembly 3 respectively include a first driving portion 21 and a first bending portion 22, wherein the first bending portion 22 is connected to a driving end of the first driving portion 21, and under the drive of the first driving portion 21, the first bending portion 22 can apply force to the tab 001 of the battery cell and bend the tab 001;

[0059] The reverse bending component 3 includes a second driving part 31 and a second bending part 32, and the second bending part 32 is connected to the driving end of the second driving part 31. Under the drive of the second driving part 31, the second bending part 32 can apply force to the pole ear 001 of the battery cell and bend the pole ear 001, and the bending direction of the first bending part 22 is opposite to the bending direction of the second bending part 32.

[0060] like Figure 1 As shown, the conveyor 1 is the main component for the transmission of the battery cell, and its structure can be designed as a conveyor belt, roller conveyor or other forms of conveying mechanism according to actual needs. The conveyor 1 is used to transport the battery cells to be shaped to the shaping work area in sequence and stably. The conveyor 1 is provided with a bracket 11, which is used to carry the battery cells.

[0061] The positive folding assembly 2 is arranged on one side of the conveying member 1, and the positive folding assembly 2 can perform positive bending on the pole ear 001 of the battery cell. The positive folding assembly 2 includes a first driving part 21 and a first bending part 22. The first driving part 21 is used to provide power to the first bending part 22. For example, the first driving part 21 can be a cylinder, a motor, etc. The first bending part 22 is connected to the driving end of the first driving part 21. Under the drive of the first driving part 21, the first bending part 22 can apply force to the pole ear 001 of the battery cell, so that the pole ear 001 is positively bent at a predetermined angle.

[0062] The reverse bending assembly 3 is used to reversely bend the tab 001 that has been forward bent to complete the shaping of the tab 001. The reverse bending assembly 3 includes a second driving portion 31 and a second bending portion 32. The second driving portion 31 is used to provide power to the second bending portion 32. For example, the second driving portion 31 can be a cylinder, a motor, etc. The second bending portion 32 is connected to the driving end of the second driving portion 31. Under the drive of the second driving portion 31, the second bending portion 32 can apply force to the tab 001 of the battery cell and reversely bend the tab 001 to form the tab 001 of the desired shape.

[0063] Among them, the battery can be Fig.11 As shown, each tab 001 of the battery cell includes a first portion 0011 and a second portion 0012. Along the axial direction of the battery cell, the length of the first portion 0011 is greater than the length of the second portion 0012. Driven by the first driving unit 21, the first bending portion 22 can bend the first portion 0011 in a positive direction; then, driven by the second driving unit 31, the second bending portion 32 can bend the second portion 0012 in a reverse direction, so that the second portion 0012 is located above the first portion 0011 and forms the tab 001 shape shown in the figure. Among them, the tab 001 includes a positive tab and / or a negative tab.

[0064] In addition, according to the actual design, the tab 001 of the battery cell can also be in a single-piece bent shape. At this time, under the drive of the first driving unit 21, the first bending unit 22 can first bend the tab 001 in a positive direction; then, under the drive of the second driving unit 31, the second bending unit 32 bends the tab 001 in a reverse direction, thereby forming a tab 001 structure of a desired shape. Among them, the tab 001 includes a positive tab and / or a negative tab.

[0065] In actual use, the conveyor 1 is started to transport the battery cells to be shaped to the shaping position of the forward folding assembly 2 in sequence. When the battery cells reach the predetermined position, the first driving unit 21 of the forward folding assembly 2 is started to drive the first bending unit 22 to perform forward bending on the tabs 001 of the battery cells. After the forward folding is completed, the battery cells are continuously transported by the conveyor 1 to the shaping position of the reverse folding assembly 3, and the second driving unit 31 of the reverse folding assembly 3 is started to drive the second bending unit 32 to perform reverse bending on the tabs 001 that have been folded forward, thereby completing the shaping process of the entire tabs 001.

[0066] The first driving part 21 is used to provide stable and precisely controllable power to ensure that the force and angle applied by the first bending part 22 to the tab 001 are accurate, thereby ensuring that the tab 001 after shaping meets the preset specification requirements. The design of the first bending part 22 needs to match the shape of the tab 001 of the battery cell to facilitate shaping.

[0067] Similarly, the second driving part 31 is used to provide stable and precisely controllable power to ensure that the force and angle applied by the second bending part 32 to the tab 001 are accurate, thereby ensuring that the tab 001 after shaping meets the preset specification requirements. The design of the second bending part 32 needs to match the shape of the tab 001 of the battery cell to facilitate shaping.

[0068] like Figure 1 As shown, the positive folding assembly 2 and the reverse folding assembly 3 are arranged in sequence along the conveying direction of the conveyor 1, so that the battery cell can continuously complete the two shaping steps of positive folding and reverse folding during the conveying process without additional downtime or transfer, which greatly improves the shaping efficiency. Moreover, the positive folding assembly 2 is arranged before the reverse folding assembly 3, which can also meet the bending requirements of the fan-shaped pole ear 001, thereby improving the reliability of the pole ear shaping device.

[0069] Optionally, the first bending portion 22 is used to bend the tab 001 of the battery cell in a direction toward the core axis of the battery cell, and the second bending portion 32 is used to bend the tab 001 of the battery cell in a direction away from the core axis of the battery cell.

[0070] Specifically, the first bending portion 22 of the forward folding assembly 2 is configured to bend the tab 001 in the direction toward the core axis of the battery cell, while the second bending portion 32 of the reverse folding assembly 3 is configured to bend in the direction away from the core axis of the battery cell. This bidirectional bending design makes the shape of the tab 001 more in line with the structural requirements of the battery cell, ensures the precise alignment of the tab 001 with the core axis of the battery cell, and improves the performance and safety of the battery cell.

[0071] Optionally, the first bending portion 22 includes a first folding portion 221 and a second folding portion 222 that are opposite to each other, and there is a gap between the first folding portion 221 and the second folding portion 222, and the gap is used to clamp the tab 001 of the battery cell;

[0072] Driven by the first driving portion 21 , the first folding portion 221 and the second folding portion 222 can move relative to each other and bend the tab 001 .

[0073] Among them, during the bending process, the surface where the first folding portion 221 contacts the pole ear 001 is set to be arc-shaped, that is, the first folding portion 221 contacts the pole ear 001 smoothly, which can provide good protection for the pole ear 001 while achieving the bending effect, thereby improving the reliability of the pole ear shaping device.

[0074] Optionally, the first folding portion 221 and the second folding portion 222 have the same shape.

[0075] like Figure 3As shown, the first folding portion 221 and the second folding portion 222 included in the first bending portion 22 can be arranged to have the same shape, so that under the drive of the first driving portion 21, the first folding portion 221 and the second folding portion 222 can apply the same positive bending force to the two pole ears 001 of the battery cell, thereby making the positive bending degrees of the two pole ears 001 the same.

[0076] Optionally, the second bending portion 32 includes a third folding portion 321 and a fourth folding portion 322 that are opposite to each other. When driven by the second driving portion 31 , the third folding portion 321 and the fourth folding portion 322 can move in opposite directions and bend the tab 001 .

[0077] like Figure 2 As shown, the third folding portion 321 and the fourth folding portion 322 included in the second bending portion 32 can be arranged to have the same shape, so that under the drive of the second driving portion 31, the third folding portion 321 and the fourth folding portion 322 can apply the same reverse bending force to the two pole ears 001 of the battery cell, thereby making the reverse bending degrees of the two pole ears 001 the same.

[0078] The first folded portion 221 and the third folded portion 321 are generally different in shape, which facilitates the forward folding and the reverse folding to match the shape of the tab 001 and simplifies the shaping process.

[0079] Optionally, the third folded portion 321 is in an L-shaped structure, and the surface of the third folded portion 321 in contact with the tab 001 is arc-shaped.

[0080] like Figure 2 As shown, the third folding portion 321 can be set to be an L-shaped structure, and the long side end of the third folding portion 321 can be used for convenient and reliable connection and fixing, and the short side end of the third folding portion 321 can be used to provide bending force. During the bending process, the surface where the short side end of the third folding portion 321 contacts the pole lug 001 is set to be arc-shaped, that is, the third folding portion 321 contacts the pole lug 001 smoothly, which can achieve a bending effect while providing good protection for the pole lug 001, thereby improving the reliability of the pole lug shaping device.

[0081] Optionally, the fourth folding portion 322 has the same shape as the third folding portion 321, so that under the drive of the second driving portion 31, the third folding portion 321 and the fourth folding portion 322 can apply the same reverse bending force to the two pole ears 001 of the battery cell, thereby making the reverse bending degrees of the two pole ears 001 the same.

[0082] Optionally, the forward folding component 2 further includes a third driving portion 23, a driving end of the third driving portion 23 is connected to the first bending portion 22, and under the drive of the third driving portion 23, the first bending portion 22 can move along the axial direction of the battery cell.

[0083] Specifically, driven by the third driving unit 23 , the first bending portion 22 can move along the axial direction of the battery cell, and can adapt to the changes in the axial direction of the bent pole ear 001 , so that the bending effect of the pole ear 001 is better and the risk of the pole ear 001 rebounding can be reduced.

[0084] Alternatively, if Figure 2 As shown, the reverse folding component 3 also includes a sixth driving part 33, and the driving end of the sixth driving part 33 is connected to the second bending part 32. Under the drive of the sixth driving part 33, the second bending part 32 can move along the axial direction of the battery cell, and can adapt to the changes in the axial direction of the bent pole ear 001, so that the bending effect of the pole ear 001 is better, and the risk of rebound of the pole ear 001 can also be reduced.

[0085] Optionally, the positive folding assembly 2 further includes a third driving part 23 and a driving plate 24, the driving end of the third driving part 23 is connected to the driving plate 24, and the first driving part 21 is arranged on the driving plate 24;

[0086] Under the drive of the third driving part 23 , the driving plate 24 can drive the first bending part 22 to move along the axial direction of the battery cell.

[0087] like Figures 3 to 5 As shown, under the drive of the third driving part 23, the driving plate 24 can move and drive the first bending part 22 to move along the axial direction of the battery cell, which can adapt to the change of the bent pole ear 001 in the axial direction, so that the bending effect of the pole ear 001 is better and the risk of rebound of the pole ear 001 can be reduced. Among them, the driving plate 24 is used as a transmission member to reliably transmit the driving force of the third driving part 23 to the first bending part 22.

[0088] Optionally, the front folding assembly 2 further includes a fourth driving part 25 and a support 26, the driving plate 24 is movably connected to the support 26, the third driving part 23 and the fourth driving part 25 are arranged on the support 26, and the fourth driving part 25 has an adjusting rod 251, and the adjusting rod 251 faces the driving plate 24;

[0089] Under the driving of the fourth driving unit 25 , the adjusting rod 251 can be extended and abutted against the driving plate 24 , or the adjusting rod 251 can be retracted.

[0090] like Figures 3 to 5 As shown, the fourth driving part 25 has an adjusting rod 251, and the adjusting rod 251 can be extended and retracted under the drive of the fourth driving part 25. The adjusting rod 251 faces the driving plate 24, and the fourth driving part 25 can drive the adjusting rod 251 to extend until the adjusting rod 251 abuts against the driving plate 24. The fourth driving part 25 can also drive the adjusting rod 251 to retract and give way to the movement of the driving plate 24.

[0091] When bending, the adjustment rod 251 can be driven to extend first until the adjustment rod 251 is against the driving plate 24, and then the bending of the pole ear 001 begins; thereafter, the adjustment rod 251 is driven to retract, so that the driving plate 24 can drive the first bending portion 22 to move along the axial direction of the battery cell and bend, thereby being able to adapt to the changes in the axial direction of the bent pole ear 001, so that the bending effect of the pole ear 001 is better, and the risk of the pole ear 001 rebounding can also be reduced.

[0092] In addition, the reverse folding component 3 also adapts to the above-mentioned structural design and can be easily adapted to different usage requirements.

[0093] Optionally, the tab 001 of the battery cell includes a first part 0011 and a second part 0012, and the first bending portion 22 is used to apply force to the first part 0011 and bend the first part 0011; the second bending portion 32 is used to apply force to the second part 0012 and bend the second part 0012, and make the second part 0012 bend in the opposite direction to the first part 0011.

[0094] Specifically, the battery cell can be Fig.11 As shown, each tab 001 of the battery cell includes a first portion 0011 and a second portion 0012. Along the axial direction of the battery cell, the length of the first portion 0011 is greater than the length of the second portion 0012. Driven by the first driving unit 21, the first bending portion 22 can bend the first portion 0011 in a positive direction; then, driven by the second driving unit 31, the second bending portion 32 can bend the second portion 0012 in a reverse direction, so that the second portion 0012 is located above the first portion 0011 and forms the tab 001 shape shown in the figure. Among them, the tab 001 is a positive tab 001 or a negative tab 001.

[0095] Optionally, it further comprises a clamping assembly 4, which faces the conveying member 1 and can clamp the conveyed battery cell. Figure 1 and Fig.10 As shown, the clamping assembly 4 is used to clamp the battery cell during the bending process of the tab 001 to avoid abnormal bending caused by displacement of the battery cell.

[0096] Optionally, there are two clamping assemblies 4, one clamping assembly 4 is opposite to the forward folding assembly 2, and the other clamping assembly 4 is opposite to the reverse folding assembly 3, and the clamping assemblies 4 can clamp the transported battery cells during bending.

[0097] like Figure 1 and Fig.10As shown, the two clamping assemblies 4 are respectively opposite to the positive folding assembly 2 and the reverse folding assembly 3. When the positive folding assembly 2 is bending, the clamping assembly 4 opposite thereto can clamp the conveyed battery cell; when the reverse folding assembly 3 is bending, the clamping assembly 4 opposite thereto can clamp the conveyed battery cell to avoid displacement of the battery cell and ensure the reliability of the bending of the tab 001.

[0098] like Fig.10 As shown, each clamping assembly 4 includes a fixed block 41 and two movable blocks 42 . Under a driving force, the two movable blocks 42 can move toward each other and clamp the battery cell together with the fixed block 41 .

[0099] Optionally, a positioning component 5 is further included, and the positioning component 5 is located on a side of the forward folding component 2 away from the reverse folding component 3, and the positioning component 5 is used to position the transported battery cell.

[0100] like Figure 1 and Figure 6 As shown, two groups of positioning components 5 are respectively located on both sides of the conveyor 1, so that the two groups of positioning components 5 can position the battery cells conveyed on the conveyor 1 from opposite sides. Each group of positioning components 55 includes a moving member 51 and a positioning member 52. Under the driving force, the moving member 51 can drive the positioning member 52 to move along the axial direction of the battery cell until the positioning member 52 abuts against the end of the battery cell and positions the battery cell to facilitate the subsequent bending process.

[0101] Alternatively, if Figure 1 As shown, it also includes an adjustment component 6, which is located between the positioning component 5 and the folding component 2, and is used to adjust the position of the pole ear 001 of the transported battery cell so that the pole ear 001 can be positioned opposite to the first bending portion 22, so as to facilitate the first bending portion 22 to be bent quickly and accurately.

[0102] Optionally, the adjustment component 6 includes an adjustment unit 61 and a detection unit 62, wherein the detection unit 62 is used to detect the position of the tab 001 of the battery cell being transported, and the adjustment unit 61 is used to adjust the position of the tab 001 of the battery cell being transported.

[0103] like Figures 7 to 9As shown, the adjustment unit 61 is used to adjust the position of the tab 001 of the transported battery cell until the detection unit 62 detects that the tab 001 of the battery cell is at the set position. When the tab 001 of the battery cell is at the set position, the first bending unit 22 can be bent quickly and accurately. The detection unit 62 can be a CCD (Charge-Coupled Device) detection mechanism. The CCD detection mechanism is based on CCD technology and can read image information on the surface of an object at high speed and high precision to detect the position of the tab 001 of the battery cell.

[0104] Optionally, the adjustment part 61 includes a clamping jaw 611 and a rotating member 612, the end of the clamping jaw 611 has a clamping rod 6111, the clamping rod 6111 is used to clamp the battery cell, and the rotating member 612 can drive the battery cell to rotate until the detection part 62 detects that the position of the battery cell's tab 001 is at a set position.

[0105] like Figures 7 to 9 As shown, the ends of the two clamping jaws 611 are provided with clamping rods 6111 respectively, and the two clamping rods 6111 are used to clamp the battery cell from both sides to clamp the battery cell on the clamping jaws 611, so as to facilitate the subsequent adjustment of the position of the tab 001. The rotating member 612 is arranged to abut against the battery cell, so that the rotating member 612 can drive the battery cell to rotate together when rotating, thereby realizing the adjustment of the position of the tab 001 of the battery cell.

[0106] Optionally, the rotating member 612 includes a motor 6121, a rotating shaft 6122, and a pressure wheel 6123 sleeved on the rotating shaft 6122, the output end of the motor 6121 is connected to the rotating shaft 6122 through a transmission member, and the pressure wheel 6123 can be pressed against the battery cell;

[0107] Driven by the motor 6121 , the transmission member can drive the rotating shaft 6122 to rotate, so that the pressing wheel 6123 can drive the battery core to rotate.

[0108] like Figures 7 to 9 As shown, the motor 6121 and the rotating shaft 6122 can be connected through a transmission member such as a synchronous belt and a chain to achieve power transmission. Driven by the motor 6121, the transmission member can drive the rotating shaft 6122 to rotate, and drive the pressure wheel 6123 thereon to rotate. The pressure wheel 6123 is set to abut against the battery cell, so that the rotating pressure wheel 6123 can also drive the battery cell to rotate, thereby achieving the adjustment of the position of the tab 001 of the battery cell.

[0109] The fifth driving part 63 is connected to the adjusting part 61, and the fifth driving part 63 can drive the adjusting part 61 to descend, so that the clamping claw 611 in the adjusting part 61 can clamp the battery cell. After that, the fifth driving part 63 can drive the adjusting part 61 to ascend, until the adjusting part 61 is opposite to the detecting part 62, so as to facilitate the detection of the detecting part 62. After the adjustment is completed, the fifth driving part 63 can drive the adjusting part 61 to descend, so that the clamping claw 611 in the adjusting part 61 can put the clamped battery cell back on the conveying member 1.

[0110] The utility model also provides a winding device, comprising the above-mentioned pole ear shaping device.

[0111] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0112] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A tab shaping device for shaping a tab (001) of a battery cell, characterized in that: include: A conveying member (1), wherein the conveying member (1) is used to convey the battery core; A positive folding assembly (2) and a negative folding assembly (3), wherein the positive folding assembly (2) and the negative folding assembly (3) are arranged in sequence along the conveying direction of the conveying member (1), and the positive folding assembly (2) and the negative folding assembly (3) are used to bend the tabs (001) of the conveyed battery cells in sequence; The positive folding assembly (2) comprises a first driving portion (21) and a first bending portion (22); the first bending portion (22) is connected to a driving end of the first driving portion (21); and under the drive of the first driving portion (21), the first bending portion (22) can exert a force on a pole lug (001) of the battery cell and bend the pole lug (001); The reverse bending component (3) comprises a second driving part (31) and a second bending part (32); the second bending part (32) is connected to the driving end of the second driving part (31); under the drive of the second driving part (31), the second bending part (32) can exert force on the pole ear (001) of the battery cell and bend the pole ear (001); and the bending direction of the first bending part (22) is opposite to the bending direction of the second bending part (32).

2. A tab shaping device according to claim 1, characterized in that: The first bending portion (22) is used to bend the pole ear (001) of the battery cell in a direction toward the core axis of the battery cell, and the second bending portion (32) is used to bend the pole ear (001) of the battery cell in a direction away from the core axis of the battery cell.

3. The terminal ear shaping device according to claim 1, characterized in that: The first bending portion (22) comprises a first folding portion (221) and a second folding portion (222) which are opposite to each other, and a gap is provided between the first folding portion (221) and the second folding portion (222), and the gap is used to clamp the pole ear (001) of the battery cell; Driven by the first driving portion (21), the first folding portion (221) and the second folding portion (222) are capable of relative movement and of bending the pole tab (001).

4. A terminal ear shaping device according to claim 3, characterized in that: The first folded portion (221) and the second folded portion (222) have the same shape.

5. The terminal ear shaping device according to claim 1, characterized in that: The second bending portion (32) comprises a third folding portion (321) and a fourth folding portion (322) which are opposite to each other. When driven by the second driving portion (31), the third folding portion (321) and the fourth folding portion (322) can move in opposite directions and bend the pole ear (001).

6. The terminal ear shaping device according to claim 5, characterized in that: The third folded portion (321) has an L-shaped structure, and the surface of the third folded portion (321) in contact with the tab (001) is arc-shaped.

7. The terminal ear shaping device according to claim 6, characterized in that: The fourth folding portion (322) has the same shape as the third folding portion (321).

8. The terminal ear shaping device according to claim 1, characterized in that: The forward folding assembly (2) further comprises a third driving part (23), a driving end of the third driving part (23) being connected to the first bending part (22), and under the drive of the third driving part (23), the first bending part (22) can move along the axial direction of the battery core.

9. The terminal ear shaping device according to claim 1, characterized in that: The positive folding assembly (2) further comprises a third driving part (23) and a driving plate (24), wherein a driving end of the third driving part (23) is connected to the driving plate (24), and the first driving part (21) is arranged on the driving plate (24); Under the drive of the third drive unit (23), the drive plate (24) can drive the first bent portion (22) to move along the axial direction of the battery core.

10. The terminal ear shaping device according to claim 9, characterized in that: The positive folding assembly (2) further comprises a fourth driving part (25) and a support (26), the driving plate (24) is movably connected to the support (26), the third driving part (23) and the fourth driving part (25) are arranged on the support (26), the fourth driving part (25) has an adjusting rod (251), and the adjusting rod (251) faces the driving plate (24); Under the drive of the fourth driving part (25), the adjusting rod (251) can be extended and abutted against the driving plate (24), or the adjusting rod (251) can be retracted.

11. The terminal ear shaping device according to claim 1, characterized in that: The pole ear (001) of the battery cell comprises a first part (0011) and a second part (0012); the first bending portion (22) is used to apply force to the first part (0011) and bend the first part (0011); the second bending portion (32) is used to apply force to the second part (0012) and bend the second part (0012), and the bending direction of the second part (0012) is opposite to that of the first part (0011).

12. The terminal ear shaping device according to claim 1, characterized in that: It also comprises a clamping assembly (4), which faces the conveying member (1) and is capable of clamping the conveyed battery core.

13. A terminal ear shaping device according to claim 12, characterized in that: The number of the clamping components (4) is two, one of the clamping components (4) is opposite to the forward folding component (2), and the other of the clamping components (4) is opposite to the reverse folding component (3), and the clamping components (4) are capable of clamping the transported battery cells during bending.

14. The terminal ear shaping device according to claim 1, characterized in that: It also comprises a positioning component (5), which is located on a side of the forward folding component (2) away from the reverse folding component (3), and is used to position the transported battery cell.

15. The terminal ear shaping device according to claim 14, characterized in that: It also comprises an adjustment component (6), the adjustment component (6) being located between the positioning component (5) and the positive folding component (2), and the adjustment component (6) being used to adjust the position of the pole lug (001) of the transported battery cell.

16. The terminal ear shaping device according to claim 15, characterized in that: The adjustment component (6) comprises an adjustment part (61) and a detection part (62), wherein the detection part (62) is used to detect the position of the pole lug (001) of the transported battery cell, and the adjustment part (61) is used to adjust the position of the pole lug (001) of the transported battery cell.

17. The terminal ear shaping device according to claim 16, characterized in that: The adjustment part (61) comprises a clamping claw (611) and a rotating member (612); the end of the clamping claw (611) is provided with a clamping rod (6111); the clamping rod (6111) is used to clamp the battery cell; and the rotating member (612) can drive the battery cell to rotate until the detection part (62) detects that the position of the pole ear (001) of the battery cell is at a set position.

18. The terminal ear shaping device according to claim 17, characterized in that: The rotating member (612) comprises a motor (6121), a rotating shaft (6122) and a pressure wheel (6123) sleeved on the rotating shaft (6122); the output end of the motor (6121) is connected to the rotating shaft (6122) via a transmission member, and the pressure wheel (6123) can abut against the battery core; Driven by the motor (6121), the transmission member can drive the rotating shaft (6122) to rotate, so that the pressure wheel (6123) can drive the battery core to rotate.

19. A winding device, characterized in that: A pole ear shaping device comprising the device described in any one of claims 1 to 18.

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