Pole lug processing device

Abstract

The utility model relates to the technical field of battery production, in particular to a pole lug processing device which is used for processing a pole lug on a battery and comprises a supporting frame, a driving part, a cutter and a positioning seat, the positioning seat is connected to the supporting frame and suitable for fixing the battery, and the driving part and the positioning seat are oppositely arranged in a spaced mode and connected to the supporting frame in a liftable mode. The cutter is connected to the side, close to the positioning seat, of the driving part, the positioning seat is provided with a bearing part, the bearing part is suitable for bearing the tab, and the driving part is suitable for driving the cutter to be close to and abut against the bearing part so as to cut off the tab. In the invention, the tab is cut off under the stamping of the cutter, the requirement on the cutter is low, the yield during batch cutting is easily ensured, the cutter head of the cutter does not need to be made of a material with high wear resistance, and when the cutter point is blunt, only the driving force of the driving part needs to be increased, so that the production cost is reduced, the service life is prolonged, and the production efficiency is improved. And meanwhile, the limitation on tool bit forming is small.

Description

Technical Field

[0001] This application relates to the technical field of battery production, and specifically proposes an electrode processing device. Background Technology

[0002] In battery production, cutting the tab length is a crucial step. It not only standardizes the tab size, facilitating subsequent assembly and welding processes, but also prevents safety hazards by avoiding excessively long tabs that could cause short circuits inside the battery pack.

[0003] However, traditional processes mostly employ two flat cutting blades to cut the tabs using a staggered shearing method. The two blades must fit tightly together to cut the relatively thin tabs, resulting in friction between them. Over time, this can lead to damage, and using more wear-resistant materials for the blades would significantly increase costs. Furthermore, this method of cutting tabs places strict requirements on the assembly gap and blade edge of the two blades, making it difficult to guarantee yield rates for mass production. Moreover, due to the friction between the two blades, and to ensure lifespan and assembly gap, the blades are generally flat, resulting in sharp corners at the cut end of the tab. This poses a risk of puncturing the battery when bending the tab later. Utility Model Content

[0004] The purpose of this application is to solve at least some of the technical problems mentioned above, and this purpose is achieved through the following technical solutions:

[0005] This application discloses a tab processing device for processing tabs on batteries. It includes a support frame, a drive unit, a cutting tool, and a positioning seat. The positioning seat is connected to the support frame and is adapted to fix the battery. The drive unit is arranged at a distance from the positioning seat and is vertically connected to the support frame. The cutting tool is connected to the side of the drive unit near the positioning seat. The positioning seat has a support portion adapted to support the tab. The drive unit is adapted to drive the cutting tool to approach and press against the support portion to cut off the tab.

[0006] In some embodiments, the cutting tool has a curved blade.

[0007] In some embodiments, the cutting tool includes two connected cutting sections.

[0008] In some embodiments, the positioning seat is provided with a receiving groove, which is located at the end of the positioning seat near the support portion.

[0009] In some embodiments, the positioning seat has an inclined surface that connects the receiving groove and the support portion.

[0010] In some embodiments, the tab processing device has a first direction, the positioning seat includes a base and a first block, the side of the base facing the drive member is provided with a first groove, the first groove is adapted to place a battery, the first block is at least partially embedded in the first groove and slidably connected to the inner wall of the first groove along the first direction, and the first block is used to abut and fix the battery.

[0011] In some embodiments, the substrate is further provided with a limiting groove, which is connected to the first groove. The first block has a limiting part, which is at least partially located in the limiting groove. The limiting part is movable in the limiting groove along a first direction.

[0012] In some embodiments, the cutting tool includes a connecting seat, a second block, and a cutting head. The connecting seat is connected to the driving member, and a second groove is provided on the side of the connecting seat facing the positioning seat. The second block is embedded in the second groove and connected to the cutting head. The second block is movably disposed in the second groove along a first direction. The supporting portion is movably disposed on the base along the first direction, or the supporting portion is continuously distributed on the base along the first direction. The supporting portion and the cutting head at least partially overlap in projection along the lifting direction of the driving member.

[0013] In some embodiments, a plurality of first connecting holes are spaced apart in the first groove along the first direction, and at least one second connecting hole is provided on the first block, with some of the first connecting holes corresponding to the second connecting holes and the two being adapted to pass through and lock together with fasteners; and / or, a plurality of third connecting holes are spaced apart in the second groove along the first direction, and at least one fourth connecting hole is provided on the second block, with some of the third connecting holes corresponding to the fourth connecting hole and the two being adapted to pass through and lock together with fasteners.

[0014] In some embodiments, the support frame includes a first plate, a second plate, and support columns. The first plate and the second plate are spaced apart along the lifting direction of the drive member. There are multiple support columns connected between the first plate and the second plate. A positioning seat is installed on the first plate, and the drive member is installed on the second plate. The drive member has a power output part connected to the tool and is located between the first plate and the second plate.

[0015] The technical solution proposed in this application has at least the following technical effects:

[0016] In this application, the battery is connected to the positioning seat, and the tabs on the battery are placed on the support. The driving component drives the cutting tool to approach the support and press against it, that is, the tabs are broken off under the pressure of the cutting tool. This method has less requirements for the cutting tool, makes it easier to ensure the yield during batch cutting, and the cutting tool does not need to be made of a wear-resistant material. When the cutting edge is dull, it is only necessary to increase the driving force of the driving component, which reduces production costs, extends service life, and has fewer restrictions on the forming of the cutting tool. Attached Figure Description

[0017] To better integrate the content illustrated in the accompanying drawings with the description of the specific embodiments, a brief introduction to the drawings is provided below. It is understood that the accompanying drawings mentioned below are merely schematic illustrations of some embodiments of the relevant technical solutions and the technical solutions of this application. Without creative effort, those skilled in the art can create drawings illustrating other embodiments.

[0018] Specifically, the annotations for the accompanying drawings are as follows:

[0019] Figure 1 This is a schematic diagram of the overall structure of the tab processing apparatus described in some embodiments of this application;

[0020] Figure 2 This is a schematic diagram of the positioning seat described in some embodiments of this application;

[0021] Figure 3 This is a schematic diagram of the structure of the cutting tool described in some embodiments of this application.

[0022] Specifically, the annotations for the figure marks in the instruction manual are as follows:

[0023] 10. Support frame; 20. Drive component; 30. Cutting tool; 40. Positioning seat; 50. Battery; 101. First plate; 102. Second plate; 103. Support column; 201. Power output unit; 301. Connecting seat; 302. Second block; 303. Cutting head; 3011. Second groove; 3012. Third connecting hole; 3021. Fourth connecting hole; 401. Base; 402. First block; 4011. Support part; 4012. Receiving groove; 4013. Inclined surface; 4014. First groove; 4015. Limiting groove; 4016. First connecting hole; 4021. Second connecting hole; 4022. Limiting part; 501. Tab; X, First direction; Y, Second direction; Z, Third direction. Detailed Implementation

[0024] To make the embodiments of this application clearer, they will be described below in conjunction with the accompanying drawings. It is to be understood that the content mentioned below is only a partial embodiment of this application, while the complete list of all embodiments is provided. Therefore, other embodiments obtained based on the following embodiments without any inventive effort all fall within the protection scope of this application.

[0025] It should be understood that the terminology used herein is for the purpose of describing specific embodiments only and is not intended to impose strict limitations on the technical solutions unless the context clearly indicates otherwise. For example, the use of "a," "an," and "the" to modify a feature does not preclude the possibility that the feature may be plural in other embodiments.

[0026] It should be understood that the terms "comprising," "including," and "having" are open-ended, indicating the presence of the stated features but not excluding the possibility of other features in the embodiment. Similarly, the use of terms such as "first," "second," etc., to describe multiple features only indicates the distinction between one feature and another, and such terms do not imply order or sequence unless explicitly stated in the context.

[0027] It should be understood that, unless the context clearly indicates otherwise, the terms "setup," "connection," and "installation" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integrated connection; they can refer to a direct connection or an indirect connection via a medium. Those skilled in the art will understand the specific meaning of these terms in this document based on the specific circumstances.

[0028] In addition, for ease of description, the text will use terms of spatial relative relationship to describe the position of one feature relative to another feature, such as "inner", "outer", "end", "side", "upper", "middle", "lower", "high", "low", "axial", "circumferential", "radial", "horizontal", "vertical", "first direction", "second direction", etc. It can be understood that the spatial relative relationship between two features should include other specific situations besides those shown in the accompanying drawings of the specification.

[0029] The embodiments of this application will now be described with reference to the accompanying drawings.

[0030] Reference Figure 1 The embodiments of this application propose an electrode tab processing device for processing electrode tabs 501 on a battery 50. The device includes a support frame 10, a drive member 20, a cutter 30, and a positioning seat 40. The positioning seat 40 is connected to the support frame 10 and is adapted to fix the battery 50. The drive member 20 is disposed opposite to the positioning seat 40 and is vertically connected to the support frame 10. The cutter 30 is connected to the side of the drive member 20 near the positioning seat 40. The positioning seat 40 is provided with a support portion 4011, which is adapted to support the electrode tab 501. The drive member 20 is adapted to drive the cutter 30 to approach and press against the support portion 4011 to cut off the electrode tab 501.

[0031] In this embodiment, the battery 50 is connected to the positioning seat 40, and the tabs 501 on the battery 50 are placed on the support part 4011. The driving member 20 drives the cutter 30 to approach the support part 4011 and achieve pressure, that is, the tabs 501 are broken under the pressure of the cutter 30. This method has less requirements for the cutter 30, makes it easier to ensure the yield during batch cutting, and the cutting head 303 of the cutter 30 does not need to be made of a wear-resistant material. When the blade is dull, it is only necessary to increase the driving force of the driving member 20, which reduces production costs, extends service life, and has less restriction on the forming of the cutting head 303.

[0032] Optionally, refer to Figure 2 The battery 50 is a pouch battery. The tab processing device has two perpendicular directions, a first direction X, a second direction Y, and a third direction Z. The width direction of the battery 50 can be aligned with the first direction X, the length direction of the battery 50 can be aligned with the second direction Y, and the thickness direction of the battery 50 can be aligned with the third direction Z. Understandably, the lifting direction of the drive member 20 is aligned with the third direction Z.

[0033] like Figure 3 As shown, in some embodiments, the cutting tool 30 is provided with an arc-shaped cutting edge.

[0034] In this embodiment, the blade 303 of the cutter 30 is provided with an arc-shaped blade edge, which makes the edge of the cut tab 501 smoother and without sharp corners, eliminating the risk of puncturing the battery 50 later; moreover, the cutter 30 has no concerns about friction, and there are fewer restrictions on the forming of the blade 303, making it easier to design an arc-shaped blade edge.

[0035] In some embodiments, refer to Figure 3 The cutting tool 30 includes two connected punching sections.

[0036] In this embodiment, the cutting tool 30 includes two cutting portions that cut the positive electrode tab 501 and the negative electrode tab 501 respectively. The two cutting portions are connected to increase the strength of the cutting head 303. It should be noted that the two cutting portions of the cutting head 303 can also be arranged at intervals, as long as they can cut the positive electrode tab 501 and the negative electrode tab 501 respectively.

[0037] In some embodiments, refer to Figure 2 The positioning seat 40 is provided with a receiving groove 4012, which is located at the end of the positioning seat 40 near the supporting part 4011.

[0038] In this embodiment, after the cutting tool 30 completes the stamping, the cut-off scrap material can fall into the receiving groove 4012, which is convenient for recycling or subsequent processing, saves material costs, and eliminates production waste.

[0039] In some embodiments, refer to Figure 2 The positioning seat 40 has an inclined surface 4013, which is connected between the receiving groove 4012 and the supporting part 4011.

[0040] In this embodiment, after the cutting tool 30 completes the stamping, the cut-off scrap material can automatically slide along the inclined surface 4013 into the receiving groove 4012, which improves production efficiency and is a reasonable design.

[0041] In some embodiments, refer to Figure 2The positioning seat 40 includes a base 401 and a first block 402. The base 401 has a first groove 4014 on its side facing the drive member 20. The battery 50 is located in the first groove 4014. The first block 402 is at least partially embedded in the first groove 4014 and is slidably connected to the inner wall of the first groove 4014 along the first direction X. The first block 402 is used to abut and fix the battery 50.

[0042] In this embodiment, the battery 50 is fixed in the first groove 4014 by the abutment and limiting of the first block 402. The first block 402 can be moved and adjusted in the first groove 4014 along the width direction of the battery 50 (that is, the first direction X) to adapt to batteries 50 of different widths.

[0043] In some embodiments, refer to Figure 2 The base 401 is also provided with a limiting groove 4015, which is connected to the first groove 4014. The first block 402 has a limiting part 4022, which is at least partially located in the limiting groove 4015. The limiting part 4022 is movable in the limiting groove 4015 along the first direction X.

[0044] In this embodiment, the first block 402 has a limiting part 4022 extending along the second direction Y. The limiting part 4022 moves within the limiting groove 4015 of the positioning seat 40, thereby limiting the adjustable range of the first block 402.

[0045] In some embodiments, refer to Figure 3 The cutting tool 30 includes a connecting seat 301, a second block 302, and a cutting head 303. The connecting seat 301 is connected to the driving member 20. The side of the connecting seat 301 facing the positioning seat 40 is provided with a second groove 3011. The second block 302 is embedded in the second groove 3011 and is connected to the cutting head 303. The second block 302 is movably disposed in the second groove 3011 along the first direction X. The supporting part 4011 is movably disposed on the base 401 along the first direction X, or the supporting part 4011 is continuously distributed on the base 401 along the first direction X. The supporting part 4011 and the cutting head 303 at least partially overlap in projection along the lifting direction of the driving member 20.

[0046] In this embodiment, the second block 302 is provided with a cutting head 303. The second block 302 can be moved and adjusted within the second groove 3011 along the first direction X, so as to adapt to different types of batteries (mainly used to adapt to the situation where the tabs are led out from different positions of the battery), that is, to ensure that the cutting head 303 always corresponds to the tabs 501 of the battery 50. It can be understood that the supporting part 4011 needs to move synchronously with the second block 302 (or the cutting head 303), or the supporting part 4011 needs to be continuously arranged along the width direction of the battery 50, so as to ensure that the cutting head 303 can always press against the supporting part 4011.

[0047] In some embodiments, refer to Figure 2 and Figure 3 The first groove 4014 has a plurality of first connecting holes 4016 spaced apart along the first direction X, and the first block 402 has at least one second connecting hole 4021. Some of the first connecting holes 4016 correspond to the second connecting holes 4021 and are adapted to be locked together by fasteners; and / or, the second groove 3011 has a plurality of third connecting holes 3012 spaced apart along the first direction X, and the second block 302 has at least one fourth connecting hole 3021. Some of the third connecting holes 3012 correspond to the fourth connecting hole 3021 and are adapted to be locked together by fasteners.

[0048] In this embodiment, the second connecting hole 4021 can be a strip-shaped hole. The second connecting hole 4021 and the first connecting hole 4016 are fixed with fasteners, thereby locking the first block 402 after it has been moved and adjusted. The connection is stable, and the battery has a good contact effect, preventing the first block and the battery from shaking and affecting the cutting effect of the tab 501. Similarly, the fourth connecting hole 3021 and the third connecting hole 3012 are also fixed with fasteners, thereby locking the second block 302 and the cutter head 303 after they have been moved and adjusted. The connection is stable, preventing shaking and affecting the cutting effect of the tab 501.

[0049] In some embodiments, refer to Figure 1 The support frame 10 includes a first plate 101, a second plate 102, and support columns 103. The first plate 101 and the second plate 102 are spaced apart along the lifting direction (i.e., the third direction Z) of the drive member 20. There are multiple support columns 103, which are connected between the first plate 101 and the second plate 102. The positioning seat 40 is installed on the first plate 101, and the drive member 20 is installed on the second plate 102. The drive member 20 has a power output part 201 connected to the tool 30, and the power output part 201 is located between the first plate 101 and the second plate 102.

[0050] In this embodiment, the support frame 10 constructs a stamping space through the first plate 101, the second plate 102, and the support column 103. Optionally, the drive member 20 can be a pneumatic cylinder or a hydraulic cylinder. The main body of the drive member 20 is located on the side of the second plate 102 away from the first plate 101, and the positioning seat 40 is located on the side of the first plate 101 close to the second plate 102. The power output part 201 of the drive member 20 moves along the third direction Z between the first plate 101 and the second plate 102, that is, it drives the cutter 30 to stamp the tab 501.

[0051] In particular, the term "and / or" in this application should be understood as follows:

[0052] In the first case, the term “and / or” between the first subject and the second subject includes any of the following meanings: (1) only the first subject; (2) only the second subject; and (3) both the first subject and the second subject.

[0053] In the second case, the term "and / or" between the last two of three or more subjects means including at least any one of the subjects. For example, "first subject, second subject and / or third subject" has the same meaning as "first subject and / or second subject and / or third subject", specifically including the following combinations: (1) only the first subject; (2) only the second subject; (3) only the third subject; (4) first subject and second subject and no third subject; (5) first subject and third subject and no second subject; (6) second subject and third subject and no first subject; and (7) first subject, second subject and third subject;

[0054] Furthermore, the character " / " in this application indicates that the objects before and after it are in an "or" relationship.

[0055] Furthermore, although the embodiments of this application have been described above in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the concept of this application, and such modifications and variations all fall within the scope of protection of this application.

Claims

1. A tab processing apparatus for processing a tab (501) on a battery (50), characterized by, The device comprises a support frame (10), a driving member (20), a cutter (30) and a positioning seat (40), the positioning seat (40) is connected to the support frame (10), the positioning seat (40) is suitable for fixing the battery (50), the driving member (20) is arranged opposite to the positioning seat (40) and is connected to the support frame (10) in a lifting manner, the cutter (30) is connected to the driving member (20) on the side close to the positioning seat (40), the positioning seat (40) is provided with a supporting part (4011), the supporting part (4011) is suitable for supporting the tab (501), and the driving member (20) is suitable for driving the cutter (30) to approach and press against the supporting part (4011) to cut the tab (501).

2. The tab processing apparatus according to claim 1, wherein The cutter (30) is provided with an arc-shaped blade.

3. The tab processing apparatus according to claim 1, wherein The cutter (30) comprises two connected punching parts.

4. The tab processing apparatus according to claim 1, wherein The positioning seat (40) is provided with a material receiving groove (4012), and the material receiving groove (4012) is arranged at the end of the positioning seat (40) close to the supporting part (4011).

5. The tab processing apparatus according to claim 4, wherein The positioning seat (40) has an inclined surface (4013) connected between the material receiving groove (4012) and the supporting part (4011).

6. The tab processing apparatus according to claim 1, wherein The tab processing device has a first direction (X), the positioning seat (40) comprises a base body (401) and a first block (402), the side of the base body (401) facing the driving member (20) is provided with a first groove (4014), and the first groove (4014) is suitable for placing the battery (50); the first block (402) is at least partially embedded in the first groove (4014) and is slidingly connected to the inner wall of the first groove (4014) along the first direction (X), and the first block (402) is used for abutting and fixing the battery (50).

7. The tab processing apparatus according to claim 6, wherein The base body (401) is also provided with a limiting groove (4015) in communication with the first groove (4014), the first block (402) has a limiting part (4022), the limiting part (4022) is at least partially located in the limiting groove (4015), and the limiting part (4022) is movably arranged in the limiting groove (4015) along the first direction (X).

8. The tab processing apparatus according to claim 6, wherein The cutter (30) comprises a connecting seat (301), a second block (302) and a cutter head (303), the connecting seat (301) is connected to the driving member (20), the side of the connecting seat (301) facing the positioning seat (40) is provided with a second groove (3011), the second block (302) is embedded in the second groove (3011), the second block (302) is connected to the cutter head (303), and the second block (302) is movably arranged in the second groove (3011) along the first direction (X). The supporting part (4011) is movably arranged on the base body (401) along the first direction (X), or the supporting part (4011) is continuously distributed on the base body (401) along the first direction (X), and the supporting part (4011) at least partially overlaps with the cutter head (303) in the lifting direction of the driving member (20).

9. The tab processing apparatus according to claim 8, wherein A plurality of first connecting holes (4016) are arranged in the first recess (4014) along the first direction (X), and the first block (402) is provided with at least one second connecting hole (4021), part of the first connecting holes (4016) correspond to the second connecting holes (4021), and a fastener is adapted to pass through and lock between the first connecting holes (4016) and the second connecting holes (4021). And / or, a plurality of third connecting holes (3012) are arranged in the second recess (3011) along the first direction (X), and the second block (302) is provided with at least one fourth connecting hole (3021), part of the third connecting holes (3012) correspond to the fourth connecting holes (3021), and a fastener is adapted to pass through and lock between the third connecting holes (3012) and the fourth connecting holes (3021).

10. The tab processing apparatus according to any one of claims 1 to 9, characterized by The support frame (10) comprises a first plate body (101), a second plate body (102) and a plurality of support columns (103), the first plate body (101) and the second plate body (102) are arranged along the lifting direction of the driving member (20), and the plurality of support columns (103) are connected between the first plate body (101) and the second plate body (102). The positioning seat (40) is mounted on the first plate body (101), the driving member (20) is mounted on the second plate body (102), the driving member (20) has a power output portion (201) connected with the cutter (30), and the power output portion (201) is located between the first plate body (101) and the second plate body (102).

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