Positioning device and production apparatus

Abstract

The utility model relates to positioning tool technical field discloses a kind of positioning device and production equipment, the accurate positioning and clamping of battery cell can be realized, and the efficiency of change type is high.This positioning device includes: stage, is equipped with multiple positioning members being spaced apart along first direction;Side positioning mechanism, including multiple side parts and side clamping part;Along first direction, side part is movably set and located above stage, multiple side parts and multiple positioning members are alternately arranged, and the clamping space is formed between side part and adjacent positioning member;Side clamping part is used to provide clamping force to side part;Tail positioning mechanism, including tail part;Tail part is located in the side of stage along second direction, and movably set along second direction;Along second direction, tail part is opposite to clamping space;Controller, with side positioning mechanism, tail positioning mechanism electric connection, for respectively adjusting the moving stroke of side part and tail part.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, specifically to a positioning device and production equipment. Background Technology

[0002] Existing battery cell pad printing positioning devices employ a fixed structural design, with side limiting components and bottom support modules only compatible with a single battery cell specification. When producing different specifications of battery cells, the following changeover operation is required: machine shutdown → disassembly of the original positioning module → installation of the new specification module → adjustment of positioning parameters, resulting in a lengthy changeover cycle. This changeover mode leads to reduced effective utilization of production equipment and a significant decrease in output per unit time. Especially in scenarios with small batches and multiple order volumes, the non-productive time caused by frequent changeovers accounts for a large proportion, becoming a key bottleneck restricting production efficiency. Utility Model Content

[0003] In view of this, the present invention provides a positioning device and production equipment to solve the problem of low efficiency in the positioning device of battery cells.

[0004] In a first aspect, this utility model provides a positioning device for clamping and positioning a battery cell, comprising: a platform on which a plurality of positioning members are disposed, the plurality of positioning members being spaced apart along a first direction; a side positioning mechanism, comprising a plurality of side pushing members and a plurality of side clamping members; the side pushing members are located above the platform and are movably disposed along the first direction; along the first direction, the plurality of side pushing members and the plurality of positioning members are alternately disposed, and a clamping space is formed between the side pushing members and adjacent positioning members; the plurality of side clamping members respectively interact with the plurality of side pushing members. The system includes a side clamping member for providing a clamping force along a first direction to the side pushing member, so that the side pushing member can clamp the battery cell with an adjacent positioning member; a tail positioning mechanism including a tail pushing member; the tail pushing member is located on one side of the platform along a second direction and is movably disposed along the second direction; along the second direction, the tail pushing member is opposite to the clamping space; and a controller electrically connected to the side positioning mechanism and the tail positioning mechanism, the controller being used to adjust the travel of the side pushing member and the tail pushing member respectively; wherein the first direction intersects the second direction.

[0005] In one optional embodiment, the side positioning mechanism includes a side drive assembly electrically connected to a controller; the side drive assembly is located below the platform and connected to a plurality of side pushers; the side drive assembly is used to drive the plurality of side pushers to move synchronously along a first direction, and the controller is used to adjust the travel of the side drive assembly along the first direction.

[0006] In one alternative embodiment, the side positioning mechanism includes a first connector and a second connector, which are connected to each other and arranged at an angle; the first connector is located below the platform and is connected to the side drive assembly; along a second direction, the second connector is located on the side of the platform away from the tail pusher and is connected to a plurality of side pushers through a plurality of side clamps.

[0007] In one optional embodiment, the side clamping member includes: a slide rail connected to the second connector; a side abutting member slidably connected to the slide rail along a first direction; a first blocking member and a second blocking member, both connected to the second connector and respectively located at both ends of the side abutting member along the first direction; and an elastic member disposed between the first blocking member and the side abutting member, or between the second blocking member and the side abutting member; the elastic member is adapted to provide a clamping force to the side abutting member along the first direction.

[0008] In one alternative embodiment, the side abutting member includes a sliding connection portion and an abutting portion connected together; the sliding connection portion is slidably connected to the slide rail; the abutting portion is located on the platform and is strip-shaped.

[0009] In one alternative embodiment, the side abutment includes an anti-slip portion connected to the side of the abutment near the clamping space.

[0010] In one alternative embodiment, the tail positioning mechanism includes a tail drive assembly electrically connected to a controller; the tail drive assembly is located below the platform and connected to the tail push member; the tail drive assembly is used to drive the tail push member to move along a second direction, and the controller is used to adjust the travel of the tail drive assembly along the second direction.

[0011] In one alternative embodiment, the tail positioning mechanism includes a third connector and a fourth connector, which are connected to each other and arranged at an angle; the third connector is located below the platform and is connected to the tail drive assembly; the fourth connector is located on one side of the platform along the second direction and is connected to the tail pusher.

[0012] In one alternative embodiment, the positioning device includes a support structure, which includes a top plate and a bottom plate connected together, with an accommodating space formed between the top plate and the bottom plate; a platform is connected to the top of the top plate; and a side drive assembly and a tail drive assembly are both connected to the bottom of the top plate and located within the accommodating space.

[0013] Secondly, this utility model also provides a production equipment for producing battery cells, including: the positioning device as described above.

[0014] By utilizing the technical solution of this utility model, through the coordinated design of the platform and the dual-directional positioning mechanisms—namely, the coordinated design with the side positioning mechanism and the tail positioning mechanism—positioning constraints of the battery cell in two directional dimensions are achieved. The alternating arrangement of multiple positioning components and side pushing components forms a modular clamping unit, which can adapt to the arrangement requirements of battery cells of different specifications. The controller adjusts the travel of the side pushing component and the tail pushing component respectively, enabling the positioning device to be compatible with the positioning of multiple battery cell models without hardware modification, significantly improving the efficiency of cell changeover. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of a positioning device according to an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a side positioning mechanism according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the structure of a tail positioning mechanism according to an embodiment of the present utility model.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Platform; 11. Positioning component; 2. Support structure; 20. Accommodation space; 21. Top plate; 22. Bottom plate; 23. Vertical plate; 3. Side positioning mechanism; 30. Clamping space; 31. Side pushing component; 311. Sliding connection; 312. Pushing component; 313. Anti-slip component; 32. Side clamping component; 321. Slide rail; 322. First blocking component; 323. Second blocking component; 324. Guide rod; 33. Side drive 331. Moving component; 332. First motor; 333. First linear guide rail; 333. First slide; 34. First connector; 35. Second connector; 4. Tail positioning mechanism; 41. Tail pushing member; 42. Tail drive assembly; 421. Second motor; 422. Second linear guide rail; 423. Second slide; 43. Third connector; 44. Fourth connector; X, first direction; Y, second direction; Z, third direction. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] The following is combined with Figures 1 to 3 The following describes embodiments of the present invention.

[0023] According to embodiments of this utility model, in one aspect, a positioning device is provided for clamping and positioning a battery cell to facilitate pad printing or other processing steps on the battery cell. Specifically, as shown... Figure 1 As shown, the positioning device includes a platform 1, a side positioning mechanism 3, a tail positioning mechanism 4, and a controller (not shown in the figure).

[0024] Furthermore, the platform 1 is provided with a plurality of positioning members 11, which are spaced apart along the first direction X. The side positioning mechanism 3 includes a plurality of side pushing members 31 and a plurality of side clamping members 32. The side pushing members 31 are located above the platform 1 and are movably arranged along the first direction X. Along the first direction X, the plurality of side pushing members 31 and the plurality of positioning members 11 are alternately arranged, and a clamping space 30 is formed between the side pushing members 31 and the adjacent positioning members 11. The plurality of side clamping members 32 are respectively connected to the plurality of side pushing members 31, and the side clamping members 32 are used to provide a clamping force along the first direction X to the side pushing members 31 so that the side pushing members 31 can clamp the battery cell with the adjacent positioning members 11. The tail positioning mechanism 4 includes a tail pushing member 41, which is located on one side of the platform 1 along the second direction Y and is movably arranged along the second direction Y. Along the second direction Y, the tail pusher 41 is opposite to the clamping space 30. The controller is electrically connected to the side positioning mechanism 3 and the tail positioning mechanism 4, and the controller is used to adjust the travel of the side pusher 31 and the tail pusher 41 respectively.

[0025] In this configuration, the first direction X intersects with the second direction Y. In some cases, the first direction X and the second direction Y can be perpendicular to each other. Understandably, the angle between the first direction X and the second direction Y depends specifically on the shape of the battery cell, as long as the positioning requirements of the battery cell can be met through bidirectional positioning. For example, the battery is a square cell, which is roughly rectangular or cubic in shape. The cell has a length direction, a width direction, and a thickness direction, wherein a tab extends from one end of the cell, and the direction in which the tab extends is the length direction of the cell. In this case, in... Figure 1In the embodiment shown, the first direction X and the second direction Y are perpendicular to each other, wherein the first direction X can be understood as the length direction of the platform 1, and the second direction Y can be understood as the width direction of the platform 1.

[0026] During clamping and positioning, the battery cell is located within the clamping space 30 formed between the side pushing member 31 and the adjacent positioning member 11. The side pushing member 31 and the positioning member 11 clamp the two ends of the battery cell in the width direction, respectively; the tail pushing member 41 abuts against one end of the battery cell in the length direction, specifically against the end of the battery cell away from the tab in the length direction, thereby achieving precise positioning in both the width and length directions of the battery cell. In this way, the tail pushing member 41, together with the side positioning mechanism 3 and the positioning member 11, completes the clamping and positioning of the battery cell in both the width and length directions. In the length direction of the battery cell, the end with the tab does not need to be clamped, which avoids damage to the battery cell during positioning and clamping, ensuring the yield of the battery cell.

[0027] When a changeover is required, the movement stroke parameters of the side pusher 31 and the tail pusher 41 are input into the controller according to the length and width dimensions of the cell to be replaced, and the changeover can be completed. The changeover efficiency is high. The CT time (Cycle Time, the total time required to complete a product or service) for a changeover is usually ≤1 minute.

[0028] Understandably, the battery cell can also be constructed in other shapes, as long as the positioning device of this utility model can be used to achieve the clamping and positioning function.

[0029] In this embodiment, the positioning constraint of the battery cell in two dimensions is achieved through the cooperative design of the platform 1 and the two-way positioning mechanism, namely the cooperative design with the side positioning mechanism 3 and the tail positioning mechanism 4. The alternating layout of multiple positioning components 11 and the side pushing component 31 forms a modular clamping unit, which can adapt to the arrangement requirements of battery cells of different specifications. The controller adjusts the travel of the side pushing component 31 and the tail pushing component 41 respectively, so that the positioning device can be compatible with the positioning of multiple battery cell models without hardware modification, significantly improving the efficiency of model changeover. In addition, since the positioning device of this utility model has high versatility and can adapt to the positioning and clamping operations of battery cells of various specifications, there is no need to configure multiple specifications of platform 1 and other hardware equipment, saving material costs and storage space of the equipment.

[0030] Furthermore, the present invention provides multiple positioning members 11, side pushing members 31, and side clamping members 32. The number of positioning members 11 and side pushing members 31 can be the same or different, but preferably the same. The number of side pushing members 31 and side clamping members 32 is the same. The present invention does not specifically limit the number of positioning members 11, side pushing members 31, and side clamping members 32. For example, there can be two, three, four, five, six, or other quantities of positioning members 11, side pushing members 31, and side clamping members 32.

[0031] Furthermore, this utility model provides one tail-end pushing member 41. It can be understood that multiple side pushing members 31 respectively form a clamping space 30 between themselves and their adjacent positioning members 11, that is, multiple clamping spaces 30 are formed. Along the second direction Y, the tail-end pushing member 41 is opposite to all the clamping spaces 30. Thus, the tail-end positioning mechanism 4 uses one tail-end pushing member 41 to complete the positioning of the battery cells in the length direction within the multiple clamping spaces 30, ensuring the consistency of the positioning of the multiple battery cells and facilitating subsequent processes.

[0032] Furthermore, the platform 1 can be a flat plate structure, and the aforementioned positioning member 11 can be fixedly or detachably mounted on the platform 1. The aforementioned side pushing member 31 and tail pushing member 41 are respectively movably mounted on the platform 1 along the first direction X and the second direction Y. The platform 1 configured in this way has a simple structure, is easy to process and manufacture, and reduces the production cost of the equipment.

[0033] Furthermore, in some embodiments, the side positioning mechanism 3 includes a side driving component 33, which is electrically connected to a controller. The side driving component 33 is located below the platform 1 and is connected to multiple side pushing members 31. The side driving component 33 is used to drive the multiple side pushing members 31 to move synchronously along a first direction X, and the controller is used to adjust the travel distance of the side driving component 33 along the first direction X. In this embodiment, the integrated design of the side driving component 33 realizes the synchronous motion control of multiple side pushing members 31. Combined with the controller's travel adjustment function, accurate side constraint boundaries can be quickly established. Compared with the traditional independent drive scheme, the synchronous movement mechanism reduces the calibration steps, allowing the side positioning mechanism 3 to adapt to new specification cells only by adjusting parameters during type change, further shortening the type change time. In addition, the side driving component 33 is located below the platform 1, which saves the arrangement space of the positioning device, thereby saving space costs.

[0034] For example, such as Figure 1 and Figure 2As shown, the side drive assembly 33 may include a first motor 331, a first linear guide rail 332, and a first slide block 333. The first motor 331 is connected to the first linear guide rail 332, which is connected to the lower part of the platform 1 via a support structure 2 and extends along a first direction X. Specifically, the first linear guide rail 332 is connected to the bottom of the top plate 21 of the support structure 2. The first slide block 333 is slidably connected to the first linear guide rail 332 along the first direction X. The first slide block 333 is connected to the aforementioned side clamping member 32 via a first connecting structure, and then connected to the side pushing member 31 via the aforementioned side clamping member 32. Exemplarily, the first linear guide rail 332 may include a first guide rail body and a first lead screw disposed within the first guide rail body, the first lead screw engaging with the first slide block 333. In actual operation, the first motor 331 drives the first lead screw to rotate, and the first lead screw meshes with the first slide block 333, converting the rotational driving force of the first motor 331 into a linear driving force along the first direction X. This enables the first slide block 333 to move relative to the first linear guide rail 332 along the first direction X, thereby driving the side pusher 31 to move along the first direction X. For example, the first motor 331 can be a servo motor, which offers high stability and controllability.

[0035] For example, the side drive assembly 33 can also be a linear motor module. The slider of the linear motor module is connected to the side clamping member 32 through the first connection structure, and then connected to the side pushing member 31 through the side clamping member 32.

[0036] Furthermore, in some embodiments, such as Figure 1 and Figure 2 As shown, the first connection structure includes a first connector 34 and a second connector 35, which are connected to each other and arranged at an angle. The first connector 34 is located below the platform 1 and is connected to the side drive assembly 33. Along the second direction Y, the second connector 35 is located on the side of the platform 1 away from the tail pusher 41 and is connected to the side pushers 31 through multiple side clamps 32. In this embodiment, the first connector 34 and the second connector 35 are arranged at an angle, which can realize the connection between the side drive assembly 33 and the side pushers 31, meeting the spatial arrangement requirements; it can also enhance the rigidity of the side positioning mechanism 3, ensure the effective transmission of driving force, and maintain accurate positioning when subjected to different cell reaction forces, avoiding positioning deviation due to structural deformation.

[0037] For example, both the first connector 34 and the second connector 35 can be plate-like structures, which are simple in structure and have high structural strength. Figure 2In the illustrated embodiment, the first connector 34 and the second connector 35 can be arranged perpendicularly to each other. The first connector 34 can be connected to the side drive assembly 33, specifically to the first slide 333, to move along the first direction X under the drive of the first slide 333. The second connector 35 is connected to the side of the first connector 34 along the second direction Y, thereby achieving a position on the platform 1 along the second direction Y. Figure 1 As shown, the height direction of the positioning device is defined as the third direction Z. The third direction Z intersects both the first direction X and the second direction Y, and preferably, the third direction Z is perpendicular to both the first direction X and the second direction Y. In the third direction Z, the cross-sectional shape of the first connector 34 and the second connector 35 is "L".

[0038] Furthermore, in some embodiments, such as Figure 2 As shown, the side clamping member 32 includes a slide rail 321, a first blocking member 322, a second blocking member 323, and an elastic member (not shown in the figure). The slide rail 321 extends along a first direction X and is connected to the second connecting member 35. Specifically, the slide rail 321 is connected to the end of the second connecting member 35 away from the first connecting member 34, i.e., the top end of the second connecting member 35. The side pushing member 31 is slidably connected to the slide rail 321 along the first direction X. The side pushing member 31 can be directly slidably connected to the slide rail 321, or it can be slidably connected to the slide rail 321 via a slider. Both the first blocking member 322 and the second blocking member 323 are connected to the second connecting member 35. Specifically, the first blocking member 322 and the second blocking member 323 are connected to the end of the second connecting member 35 away from the first connecting member 34, i.e., the top end of the second connecting member 35. The first blocking member 322 and the second blocking member 323 are located at opposite ends of the side pushing member 31 along the first direction X. The elastic element can be disposed between the first blocking member 322 and the side pushing member 31, or it can be disposed between the second blocking member 323 and the side pushing member 31. The elastic element is adapted to provide a clamping force to the side pushing member 31 in the first direction X.

[0039] For example, the elastic element can be a spring. For example, the elastic element can be directly connected between the first blocking member 322 and the side pushing member 31, or between the second blocking member 323 and the side pushing member 31; it can also be arranged between the first blocking member 322 and the side pushing member 31, or between the second blocking member 323 and the side pushing member 31, via a guide rod 324.

[0040] Specifically, such as Figure 2As shown, the side clamping member 32 also includes a guide rod 324, which passes through the side abutting member 31 along the first direction X. Alternatively, the side abutting member 31 and the slide rail 321 are slidably connected via a slider, and the guide rod 324 passes through the slider along the first direction X. The aforementioned elastic member is sleeved on the guide rod 324 and is located between the first blocking member 322 and the side abutting member 31, or between the second blocking member 323 and the side abutting member 31.

[0041] In such Figure 1 and Figure 2 In the illustrated embodiment, the side abutment 31 and a positioning member 11 together form a clamping space 30. Along the first direction X, a first blocking member 322 is located on the side of the side abutment 31 closer to the positioning member 11, and a second blocking member 323 is located on the side of the side abutment 31 away from the positioning member 11. An elastic member is disposed between the second blocking member 323 and the side abutment 31. At this time, the elastic member is in a compressed state. When clamping the battery cell, the compressed elastic member provides a clamping force to the side abutment 31 close to the positioning member 11, thereby achieving the positioning and clamping of the battery cell.

[0042] In this embodiment, the self-compensating clamping structure formed by the elastic element, slide rail 321, first blocking element 322, and second blocking element 323 achieves passive adaptation to the cell size. In the first direction X, when the cell size changes, the elastic element automatically adjusts the clamping force, maintaining stable constraint without manual intervention. This self-compensating clamping structure has good versatility, eliminating the need to adjust the physical structure when facing cell replacement, further ensuring replacement efficiency.

[0043] Furthermore, in some embodiments, the side abutment 31 includes a sliding connection portion 311 and an abutment portion 312 connected together. The sliding connection portion 311 is slidably connected to the slide rail 321, and the abutment portion 312 is located on the platform 1 and is strip-shaped. In this embodiment, the strip-shaped abutment portion 312 increases the contact area with the battery cell, improving the reliability of clamping and positioning.

[0044] For example, the sliding connection portion 311 can be block-shaped or plate-shaped, while the abutting portion 312 is strip-shaped. Specifically, along the first direction X, the size of the sliding connection portion 311 is larger than that of the abutting portion 312; along the second direction Y, the size of the sliding connection portion 311 is smaller than that of the abutting portion 312. With this configuration, the block-shaped or plate-shaped sliding connection portion 311 facilitates sliding connection with the slide rail 321, while the strip-shaped abutting portion 312 increases the contact area and saves materials, reducing material costs.

[0045] Furthermore, in some embodiments, the side abutment 31 includes an anti-slip portion 313, which is connected to the side of the abutment 312 near the clamping space 30. In this embodiment, the anti-slip portion 313 increases the friction between the anti-slip portion and the battery cell, preventing the battery cell from slipping, thus ensuring the reliability of clamping and preventing scratches on the battery cell. For example, the anti-slip portion 313 may be strip-shaped and connected to the side of the abutment 312 near the clamping space 30, such as by adhesive bonding, interference fit, or snap-fit. For example, the anti-slip portion 313 may be made of rubber, and the side of the anti-slip portion 313 near the clamping space 30 may have a corrugated structure or a serrated structure.

[0046] Typically, the side positioning mechanism of this invention can provide a positioning clamping force of ≤800g to avoid damaging the battery cell; the positioning accuracy can be controlled within ±0.1mm, ensuring accurate and reliable positioning.

[0047] In some embodiments, such as Figure 3 As shown, the tail positioning mechanism 4 includes a tail drive assembly 42, which is electrically connected to the controller. The tail drive assembly 42 is located below the platform 1 and is connected to the tail push member 41. The tail drive assembly 42 is used to drive the tail push member 41 to move along the second direction Y, and the controller is used to adjust the travel distance of the tail drive assembly 42 along the second direction Y. In this embodiment, the controller adjusts the travel distance of the tail push member 41 by adjusting the travel distance of the tail drive assembly 42. During the changeover, the parameters are set according to the size of the battery cell, and the changeover can be completed by adjusting the travel distance parameters of the tail drive assembly 42 on the controller. The changeover efficiency is high, and the utilization rate of the positioning device is high, eliminating the need for additional positioning devices of various specifications. In addition, the tail drive assembly 42 is located below the platform 1, which saves the arrangement space of the positioning device and thus saves space costs.

[0048] For example, such as Figure 1 and Figure 3As shown, the tail drive assembly 42 may include a second motor 421, a second linear guide rail 422, and a second slide block 423. The second motor 421 is connected to the second linear guide rail 422, which is connected to the lower part of the platform 1 via a support structure 2 and extends along the second direction Y. Specifically, the second linear guide rail 422 is connected to the bottom of the top plate 21 of the support structure 2. The second slide block 423 is slidably connected to the second linear guide rail 422 along the second direction Y, and is connected to the tail push member 41 via a second connecting structure. Exemplarily, the second linear guide rail 422 may also include a second guide rail body and a second lead screw disposed within the second guide rail body, the second lead screw engaging with the second slide block 423. In actual operation, the second motor 421 drives the second lead screw to rotate. The second lead screw meshes with the second slide 423, converting the rotational driving force of the second motor 421 into a linear driving force along the second direction Y. This causes the second slide 423 to move relative to the second linear guide 422 along the second direction Y, thereby driving the tail pusher 41 to move along the second direction Y. For example, the second motor 421 can be a servo motor, which offers high stability and controllability.

[0049] For example, the tail drive assembly 42 can also be a linear motor module, and the slider of the linear motor module is connected to the tail pusher 41 through the second connection structure.

[0050] Furthermore, in some embodiments, the second connection structure includes a third connector 43 and a fourth connector 44, which are interconnected and arranged at an angle. The third connector 43 is located below the platform 1 and is connected to the tail drive assembly 42. The fourth connector 44 is located on one side of the platform 1 along the second direction Y and is connected to the tail pusher 41. In this embodiment, the third connector 43 and the fourth connector 44 are arranged at an angle, which can realize the connection between the tail drive assembly 42 and the tail pusher 41, satisfying the spatial arrangement requirements; and can also enhance the rigidity of the tail positioning mechanism 4, ensuring the effective transmission of driving force, so as to ensure the consistency of the positioning of multiple cells in multiple clamping spaces 30.

[0051] For example, both the third connector 43 and the fourth connector 44 can be plate-like structures, which are simple in structure and have high structural strength. In such cases... Figure 3In the illustrated embodiment, the third connector 43 and the fourth connector 44 can be arranged perpendicularly to each other. The third connector 43 can be connected to the tail drive assembly 42, specifically to the second slide 423, to move along the second direction Y under the drive of the second slide 423. The fourth connector 44 is connected to the third connector 43 on the side along the second direction Y, thereby achieving its position on the platform 1 on the side along the second direction Y. In the height direction of the positioning device, i.e., the third direction Z, the cross-sectional shape of the third connector 43 and the fourth connector 44 is "L" shaped.

[0052] Understandably, such as Figure 1 As shown, the second connector 35 and the fourth connector 44 are located on both sides of the platform 1 along the second direction Y. Correspondingly, the side pusher 31 and the side clamping member 32 connected to the second connector 35, and the tail pusher 41 connected to the fourth connector 44 are located on both sides of the platform 1 along the second direction Y.

[0053] For example, along the first direction X, there is a moving space between the tail pusher 41 and the positioning member 11 and the side pusher 31, so that the tail pusher 41 can move along the second direction Y. Specifically, when clamping and positioning the battery cell, along the first direction X, the distance between the tail pusher 41 and the second connecting member 35 and the side clamping member 32 should be greater than the sum of the length dimension of the battery cell and the length dimension of the electrode tab, so as to achieve unilateral positioning along the length direction of the battery cell and avoid the electrode tab of the battery cell.

[0054] For example, the tail pusher 41 can be a plate-like structure, which is simple in structure and easy to process and manufacture. For example, the tail pusher 41 can include a thick-walled portion and a thin-walled portion connected sequentially along the second direction Y. The thick-walled portion is used to connect with the fourth connector 44, and the thin-walled portion is used to position the battery cell.

[0055] Typically, the side positioning mechanism of this invention can provide a positioning clamping force of ≤500g to avoid damaging the battery cell; the positioning accuracy can be controlled within ±0.1mm, ensuring accurate and reliable positioning.

[0056] Furthermore, in some embodiments, the positioning device includes a support structure 2, which includes a top plate 21 and a bottom plate 22 connected together, forming an accommodating space 20 between the top plate 21 and the bottom plate 22. A platform 1 is connected to the top of the top plate 21. A side drive assembly 33 and a tail drive assembly 42 are both connected to the bottom of the top plate 21 and located within the accommodating space 20. In this embodiment, the support structure 2 includes a top plate 21 and a bottom plate 22 connected together. While ensuring the overall rigidity of the support structure 2, the side drive assembly 33 and the tail drive assembly 42 are both arranged within the accommodating space 20, saving space occupied by the positioning device and thus saving space costs.

[0057] Specifically, the support structure 2 also includes vertical plates 23, through which the top plate 21 and the bottom plate 22 are connected. For example, multiple vertical plates 23 can be provided to ensure the stability of the support structure 2. Figure 1 As shown, both the top plate 21 and the bottom plate 22 are rectangular. At this time, four upright plates 23 can be set, and the four upright plates 23 are located at the four corners of the top plate 21 and the bottom plate 22 respectively.

[0058] The positioning device of this utility model can at least accommodate battery cell sizes ranging from 50 to 105 mm in length, 40 to 70 mm in width, and 3 to 7 mm in thickness. Of course, the battery cell specifications compatible with this positioning device are not limited to these. By adjusting the dimensions of the platform 1 and the travel distances of the side positioning mechanism 3 and the tail positioning mechanism 4, it is possible to accommodate even more battery cell specifications.

[0059] Taking pad printing on battery cells as an example, the operation process of the positioning device of this utility model is explained:

[0060] Place the battery cell: Place the battery cell in the clamping space 30 on the stage 1.

[0061] Side positioning mechanism 3: The side drive assembly 33 moves, causing the first connector 34 and the second connector 35 to move. The first connector 34 and the second connector 35 drive the side pusher 31 to move a predetermined length of travel, completing the side clamping action. At this time, the elastic member provides clamping force to the side pusher 31 to ensure the clamping effect. The predetermined length of movement of the side pusher 31 is controlled by the controller, and this predetermined length depends on the width of the battery cell.

[0062] Tail positioning mechanism 4: The movement of the bottom drive component drives the third connector 43 and the fourth connector 44 to move, and the third connector 43 and the fourth connector 44 drive the tail pusher 41 to move a predetermined length of travel, completing the tail positioning action. The predetermined length of movement of the tail pusher 41 is controlled by the controller, and this predetermined length depends on the length of the battery cell.

[0063] Pad printing pattern: The pattern is transferred onto the battery cell using a pad printing device.

[0064] Release the battery cell: The tail positioning mechanism 4 and the side positioning mechanism 3 release the battery cell in sequence.

[0065] According to an embodiment of the present invention, another aspect provides a production equipment for producing battery cells, the production equipment including the positioning device of any of the above embodiments. The production equipment of the present invention, using the positioning device of the present invention, can seamlessly connect to production lines for battery cells of different specifications. Changing specifications can be completed with a single input of the changeover parameters using a controller, resulting in high changeover efficiency. Furthermore, it eliminates the need for multiple positioning devices of different specifications, saving material and space costs.

[0066] Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A positioning device for clamping and positioning battery cells, characterized in that, include: A platform (1) is provided on which a plurality of positioning elements (11) are provided, and the plurality of positioning elements (11) are spaced apart along a first direction (X); The side positioning mechanism (3) includes a plurality of side pushing members (31) and a plurality of side clamping members (32); the side pushing members (31) are located above the platform (1) and are movably arranged along a first direction (X); along the first direction (X), the plurality of side pushing members (31) are alternately arranged with the plurality of positioning members (11), and a clamping space (30) is formed between the side pushing members (31) and the adjacent positioning members (11); the plurality of side clamping members (32) are respectively connected to the plurality of side pushing members (31), and the side clamping members (32) are used to provide a clamping force along the first direction (X) to the side pushing members (31) so that the side pushing members (31) can clamp the battery cell with the adjacent positioning members (11); The tail positioning mechanism (4) includes a tail pusher (41); the tail pusher (41) is located on one side of the platform (1) along the second direction (Y) and is movably arranged along the second direction (Y); along the second direction (Y), the tail pusher (41) is opposite to the clamping space (30); The controller is electrically connected to the side positioning mechanism (3) and the tail positioning mechanism (4), and the controller is used to adjust the movement stroke of the side push member (31) and the tail push member (41) respectively. The first direction (X) intersects with the second direction (Y).

2. The positioning device according to claim 1, characterized in that, The side positioning mechanism (3) includes a side drive assembly (33), which is electrically connected to the controller. The side drive assembly (33) is located below the platform (1) and is connected to the plurality of side pushers (31). The side drive assembly (33) is used to drive the plurality of side pushers (31) to move synchronously along a first direction (X). The controller is used to adjust the travel distance of the side drive assembly (33) along the first direction (X).

3. The positioning device according to claim 2, characterized in that, The side positioning mechanism (3) includes a first connector (34) and a second connector (35), which are connected to each other and arranged at an angle; the first connector (34) is located below the platform (1) and is connected to the side drive assembly (33); along the second direction (Y), the second connector (35) is located on the side of the platform (1) away from the tail pusher (41) and is connected to the plurality of side pushers (31) through the plurality of side clamps (32).

4. The positioning device according to claim 3, characterized in that, The side clamping member (32) includes: The slide rail (321) is connected to the second connector (35); the side pusher (31) is slidably connected to the slide rail (321) along a first direction (X); The first blocking member (322) and the second blocking member (323) are both connected to the second connecting member (35) and are located at both ends of the side pushing member (31) along the first direction (X); An elastic element is disposed between the first blocking element (322) and the side abutment (31), or between the second blocking element (323) and the side abutment (31); the elastic element is adapted to provide the side abutment (31) with a clamping force in a first direction (X).

5. The positioning device according to claim 4, characterized in that, The side push member (31) includes a sliding connection part (311) and a push part (312) connected to each other; the sliding connection part (311) is slidably connected to the slide rail (321); the push part (312) is located on the platform (1) and the push part (312) is strip-shaped.

6. The positioning device according to claim 5, characterized in that, The side push member (31) includes an anti-slip part (313), which is connected to the side of the push member (312) near the clamping space (30).

7. The positioning device according to any one of claims 2-6, characterized in that, The tail positioning mechanism (4) includes a tail drive assembly (42), which is electrically connected to the controller. The tail drive assembly (42) is located below the platform (1) and is connected to the tail pusher (41). The tail drive assembly (42) is used to drive the tail pusher (41) to move along the second direction (Y), and the controller is used to adjust the travel distance of the tail drive assembly (42) along the second direction (Y).

8. The positioning device according to claim 7, characterized in that, The tail positioning mechanism (4) includes a third connector (43) and a fourth connector (44), which are connected to each other and arranged at an angle; the third connector (43) is located below the platform (1) and is connected to the tail drive assembly (42); the fourth connector (44) is located on one side of the platform (1) along the second direction (Y) and is connected to the tail pusher (41).

9. The positioning device according to claim 7, characterized in that, The positioning device includes a support structure (2), which includes a top plate (21) and a bottom plate (22) connected to each other, and an accommodating space (20) is formed between the top plate (21) and the bottom plate (22); The platform (1) is connected to the top of the top plate (21); the side drive assembly (33) and the tail drive assembly (42) are both connected to the bottom of the top plate (21) and located within the accommodating space (20).

10. A production apparatus for producing battery cells, characterized in that, include: The positioning device as described in any one of claims 1-9.

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