Edge smoothing device for soft package battery cell

Abstract

The utility model belongs to the technical field of battery production devices, and provides an edge smoothing device for a soft package battery cell, which comprises a manipulator. The edge stroking mechanism comprises a first edge stroking clamping jaw and a second edge stroking clamping jaw; wherein the first edge stroking clamping jaw and the grabbing mechanism are used for synchronously performing first edge stroking operation on the soft package battery cell, and the second edge stroking clamping jaw is used for performing second edge stroking operation on the soft package battery cell. Compared with the prior art, the position change of the soft package battery cell relative to the edge stroking mechanism is accurately controlled through the manipulator, and manual operation is simulated, so that the first edge stroking clamping jaw can gradually move to the edge sealing position from the middle part of the soft package battery cell to start the edge stroking action; and then a second edge stroking clamping jaw is used for catching the edge and pushing the edge to the residual edge sealing area from the edge stroked part, and finally the whole edge stroking process is completed. Even if the sealing edge of the soft package battery cell has a break angle or is seriously bent, the edge smoothing operation can be smoothly completed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of battery production device, specifically relates to a kind of edge straightening device for soft package battery core. BACKGROUND

[0002] Soft package battery core is a kind of lithium ion battery core using aluminum plastic composite film as shell material.Compared with the battery packaged by traditional metal shell (such as steel shell or aluminum shell), soft package battery core has the characteristics of lighter and more flexible design.This type of battery core is widely used in consumer electronics (such as smart phone, tablet computer), electric vehicle and energy storage system.

[0003] Soft package battery core is mostly packaged with aluminum plastic film during production process.After packaging, aluminum plastic film edge will be formed.With the increase of edge width and length and the circulation between processes, the edge is usually in over-bending and non-flattening state or has corner phenomenon, which leads to the problems of edge cutting and edge folding of soft package battery core, seriously affecting the production process, capacity of soft package battery core and causing cost waste.Therefore, there is an urgent need for an edge straightening mechanism specially for the edge shaping of soft package battery core.

[0004] The utility model patent with publication number CN220290874U provides an edge straightening mechanism and device for battery core production.The utility model belongs to the technical field of battery core production equipment, and specifically relates to an edge straightening mechanism and device for battery core production.The edge straightening mechanism for battery core production includes a first driving assembly, at least one set of rolling unit group and at least one set of limiting unit group.The rolling unit group has a rolling gap for inserting the edge, and the thickness direction of the edge is defined as the first direction.The limiting unit group includes a first limiting structure and a second limiting structure arranged at intervals, and an initial distance L is formed between the two in the first direction, and the position of at least one limiting structure is adjustable to adjust the size of the initial distance L.The first driving assembly is used to adjust the size of the rolling gap in the first direction, and can drive at least one of the first limiting structure and the second limiting structure so that the two abut each other.In this way, the edge straightening mechanism for battery core production can adapt to edges of different thicknesses.

[0005] However, in the prior art, although this edge straightening mechanism can shape and straighten the edge of soft package battery core, if the edge of soft package battery core has corner or serious bending deformation, the edge straightening mechanism may press the bending part tightly, causing battery core failure.In addition, although the edge straightening mechanism can adapt to edges of different thicknesses, manual adjustment is still needed, which is not conducive to the high-speed online production of soft package battery core. UTILITY MODEL CONTENTS

[0006] The utility model solves the technical problems in the prior art and provides an edge straightening device for soft package battery core.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: A device for edge trimming of soft-pack battery cells is provided, comprising:

[0008] The robotic arm includes a motion platform and a gripping mechanism. The motion platform is used to drive the gripping mechanism to move, and the gripping mechanism is used to grip the pouch cell.

[0009] The edge-straightening mechanism includes a first edge-straightening gripper and a second edge-straightening gripper; wherein, the first edge-straightening gripper and the gripping mechanism are used to simultaneously perform a first edge-straightening operation on the soft-pack battery cell, and the second edge-straightening gripper is used to perform a second edge-straightening operation on the soft-pack battery cell;

[0010] When the first edge-straightening operation is in progress, the robotic arm drives the soft-pack battery cell to move relative to the first edge-straightening gripper, so that the first edge-straightening gripper moves from the middle of the soft-pack battery cell to the edge of the soft-pack battery cell.

[0011] When in the second edge-straightening operation, the second edge-straightening jaws grip the edge of the pouch cell and can move along the outer contour of the pouch cell.

[0012] In the above-mentioned edge-straightening device for soft-pack battery cells, two second edge-straightening grippers are provided. The two second edge-straightening grippers are respectively located on both sides of the first edge-straightening gripper. When the second edge-straightening operation is in progress, the two second edge-straightening grippers move towards each other to simultaneously perform edge-straightening operations on the soft-pack battery cells.

[0013] In the above-mentioned edge-straightening device for soft-pack battery cells, the length of the clamping surface of the first edge-straightening claw is greater than the sum of the lengths of the clamping surfaces of the two second edge-straightening claws.

[0014] In the above-mentioned edge-strapping device for soft-pack battery cells, the edge-strapping mechanism includes a first support platform, and a first edge-strapping gripper and a second edge-strapping gripper are disposed on the first support platform to provide support for the first edge-strapping gripper and the second edge-strapping gripper.

[0015] In the above-mentioned edge-straightening device for pouch cells, the first edge-straightening gripper includes:

[0016] A first driving component is disposed on the first support platform;

[0017] Two opposing fixed seats are provided, both of which are connected to the output end of the first driving member. The first driving member is used to drive the two fixed seats to move closer or further apart from each other.

[0018] A first edge rolling element is connected to each of the fixing seats.

[0019] In the edge rolling device for soft package battery cell, an elastic element is arranged on each of the first edge rolling elements, one end of the first edge rolling element is provided with a limiting part, and two ends of the elastic element are respectively abutted against the limiting part and the fixing seat.

[0020] In the edge rolling device for soft package battery cell, the edge rolling mechanism further comprises:

[0021] A base is connected to the first supporting platform.

[0022] A second driving element is connected to the base and used for providing a power source for the second edge rolling clamping jaw.

[0023] An adapter seat is connected to an output end of the second driving element at one end and connected to the second edge rolling clamping jaw at the other end, and used for connecting the second driving element and the second edge rolling clamping jaw.

[0024] In the edge rolling device for soft package battery cell, a first guide rail is arranged on the first supporting platform, a first sliding block is movably arranged on the first guide rail, and the first sliding block is connected to the adapter seat and used for providing a guide for movement of the second edge rolling clamping jaw.

[0025] In the edge rolling device for soft package battery cell, the second edge rolling clamping jaw comprises a third driving element and two second edge rolling jaws connected to an output end of the third driving element, and the third driving element is used for driving the two second edge rolling jaws to move close to or away from each other.

[0026] In the edge rolling device for soft package battery cell, the grabbing mechanism comprises:

[0027] A second supporting platform is provided with a second guide rail.

[0028] Two fourth driving elements are arranged on the second supporting platform, and output ends of the two fourth driving elements are oppositely arranged.

[0029] A clamping block is arranged on each of the output ends of the fourth driving elements, and the two clamping blocks are used for moving close to or away from each other, and each of the clamping blocks is provided with a second sliding block movably arranged on the second guide rail and used for providing a guide for movement of the clamping block.

[0030] Compared with the prior art, the edge rolling device has the following beneficial effects:

[0031] (1) Through the movement of the motion platform driving the movement of the grabbing mechanism, the automation of the soft package battery cell edge rolling operation process is realized, the production efficiency is improved, and the working strength is reduced. In addition, through the accurate control of the position change of the soft package battery cell relative to the edge rolling mechanism by the mechanical hand, the manual operation is simulated, so that the first edge rolling clamp jaw can be gradually moved from the middle of the soft package battery cell to the edge sealing position, and the edge rolling action is started. Then the second edge rolling clamp jaw takes over, and pushes forward from the rolled edge part to the remaining edge sealing area, and finally completes the whole edge rolling process. Even if the edge of the soft package battery cell appears angle or serious bending, the edge rolling operation can be successfully completed.

[0032] (2) By making the length of the clamping surface of the first edge rolling clamp jaw greater than the sum of the lengths of the clamping surfaces of the two second edge rolling clamp jaws, the edge sealing is ensured to be completely straightened at the initial clamping position of the second edge rolling clamp jaw.

[0033] (3) By providing elastic members on the first edge rolling clamp jaw, the elastic members can drive the two first edge rolling members to approach each other in time to clamp the edge of the soft package battery cell during the movement of the two first edge rolling jaws from the middle of the soft package battery cell to the edge sealing position. This can prevent the part of the edge that is lifted up from entering between the two first edge rolling jaws when moving from the middle of the soft package battery cell to the edge sealing position, thereby causing the edge to fold. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a perspective view of a soft package battery cell edge rolling device.

[0035] Figure 2 is Figure 1 is a perspective view of the soft package battery cell edge rolling device.

[0036] Figure 3 is a perspective view of the first edge rolling clamp jaw.

[0037] Figure 4 is a perspective view of the edge rolling mechanism part structure.

[0038] Figure 5 is a perspective view of the grabbing mechanism.

[0039] Figure 6 is a plan view of the grabbing mechanism.

[0040] In the figure, 100, mechanical arm; 110, support; 120, movement platform; 130, grabbing mechanism; 131, second support platform; 131a, second guide rail; 132, fourth driving piece; 133, clamping block; 133a, second sliding block; 200, edge rolling mechanism; 210, first edge rolling clamp jaw; 211, first driving piece; 212, fixed seat; 213, first edge rolling piece; 213a, limiting portion; 214, elastic piece; 220, second edge rolling clamp jaw; 221, third driving piece; 222, second edge rolling jaw; 230, first support platform; 231, first guide rail; 232, first sliding block; 240, base; 250, second driving piece; 260, adapter seat; 300, soft package battery core; 400, first edge rolling direction; 500, second edge rolling direction. DETAILED DESCRIPTION

[0041] The following is a specific embodiment of the present application and further describes the technical solutions of the present application in conjunction with the drawings, but the present application is not limited to these embodiments.

[0042] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0043] As Figures 1 to 6 shown, the utility model relates to a kind of edge rolling devices for soft package battery core, comprising: mechanical arm 100, edge rolling mechanism 200.

[0044] Specifically, the mechanical arm 100 includes a movement platform 120 and a grabbing mechanism 130. The movement platform 120 can be three-dimensional or two-dimensional, and is used to move the grabbing mechanism 130 in a two-dimensional or three-dimensional space. As Figure 1 , the movement platform 120 in the present scheme is described using a two-dimensional structure.

[0045] In the present scheme, the mechanical arm 100 includes a support 110 for supporting the movement platform 120. The support 110 is installed with a movement platform 120 composed of a vertical shaft module and a horizontal shaft module. The movement platform 120 can move the grabbing mechanism 130 in the up-down direction and the left-right direction as shown. Figure 1 The edge rolling mechanism 200 includes a first edge rolling clamp jaw 210 and a second edge rolling clamp jaw 220, both of which are used for edge rolling processing of the soft package battery core 300. The first edge rolling clamp jaw 210 and the grabbing mechanism 130 perform a first edge rolling operation on the soft package battery core 300 synchronously, and the second edge rolling clamp jaw 220 is used for a second edge rolling operation on the soft package battery core 300.

[0046] During the feeding process, the motion platform 120 drives the gripping mechanism 130 to move the soft-pack battery cell 300 from the material stacking position to the preset position (e.g., ...). Figure 1 (At the edge-straightening position), the automatic transfer process of the soft-pack battery cell 300 is completed. At this time, the first edge-straightening gripper 210 clamps the soft-pack battery cell 300 in the middle;

[0047] During the first edge-straightening operation, the gripping mechanism 130 drives the soft-pack battery cell 300 to move relative to the first edge-straightening gripper 210, so that the first edge-straightening gripper 210 slides from the middle of the soft-pack battery cell 300 to the edge (i.e., the sealing edge) to perform the first edge-straightening operation.

[0048] When entering the second edge-straightening operation, the second edge-straightening gripper 220 grasps the edge of the soft-pack battery cell 300 and moves along the outer contour of the soft-pack battery cell 300 with the edge-straightening mechanism 200 to complete the edge-straightening operation of the soft-pack battery cell 300.

[0049] This solution automates the edge-trimming process of the pouch cell 300 by driving the movement of the gripping mechanism 130 via the motion platform 120, improving production efficiency and reducing labor intensity. Furthermore, the robotic arm 100 precisely controls the position of the pouch cell 300 relative to the edge-trimming mechanism 200, simulating human hand operation. This allows the first edge-trimming gripper 210 to gradually move from the center of the pouch cell 300 to the sealing position to begin the edge-trimming action. Then, the second edge-trimming gripper 220 takes over, advancing from the trimmed portion to the remaining sealing area, ultimately completing the entire edge-trimming process. Even if the sealing edge of the pouch cell 300 has a folded corner or severe bending, the edge-trimming operation can still be completed smoothly.

[0050] In one embodiment, two second edge-straightening grippers 220 are provided, and the two second edge-straightening grippers 220 are respectively located on both sides of the first edge-straightening gripper 210. When the second edge-straightening operation is in progress, the two second edge-straightening grippers 220 move towards each other to simultaneously perform edge-straightening operation on the soft-pack battery cell 300.

[0051] During operation, driven by the motion platform 120, the gripping mechanism 130 first grips individual cells from the vertically placed pouch cells 300. Figure 1 The edge-trimming position is shown. After the pouch cell 300 is delivered to its position, the first edge-trimming gripper 210 first clamps the middle of the pouch cell 300. Subsequently, the motion platform 120 moves, and the gripping mechanism 130 drives the pouch cell 300 along the edge... Figure 1 The edge-straightening mechanism 200 moves upwards in the direction of the soft-pack battery cell 300, while the edge-straightening mechanism 200 remains stationary. Thus, with the soft-pack battery cell 300 as a reference, the edge-straightening mechanism 200 moves relative to the soft-pack battery cell 300 along... Figure 1 It moves from top to bottom. During this process, the first edge-straightening gripper 210 moves along the outer wall of the pouch cell 300 from the middle of the pouch cell 300 to the edge-sealing position (i.e.,Figure 1 At this time, the first edge straightening jaw 210 simulates the human hand movement, and when moving to the edge position of the soft package battery cell 300, the middle part of the edge is straightened. In the process of straightening the soft package battery cell 300 by the first edge straightening jaw 210, the length of the straightened part is greater than the length of the contact part between the first edge straightening jaw 210 and the edge of the soft package battery cell 300. At this time, the second edge straightening jaws 220 on both sides of the first edge straightening jaw 210 are clamped at the edge of the soft package battery cell 300, and the clamped edge is also in a flat state. Then, under the action of the edge straightening mechanism 200, the two second edge straightening jaws 220 move towards each other along the second edge straightening direction 500 in FIG. 4, and complete the edge straightening operation along the outer contour of the soft package battery cell 300. Figure 1

[0052] In this scheme, the clamping surface length of the first edge straightening jaw 210 is greater than the sum of the clamping surface lengths of the two second edge straightening jaws 220.

[0053] Due to the characteristics of the aluminum-plastic film material itself, after the edge of the soft package battery cell 300 is straightened by the first edge straightening jaw 210, the actual straightened edge length is greater than the length of the first edge straightening jaw 210. This initially ensures that the edge is in a straightened state when the second edge straightening jaw 220 is in the initial clamping position. The shorter clamping surface of the second edge straightening jaw 220 will not affect the edge straightening effect of the soft package battery cell 300; but if the clamping surface is too long, it may cause the second edge straightening jaw 220 to clamp the straightened part and the curved part of the edge of the soft package battery cell 300 at the same time when it is initially clamped. Therefore, in this scheme, the clamping surface length of the first edge straightening jaw 210 is designed to be greater than the sum of the clamping surface lengths of the two second edge straightening jaws 220, so as to ensure that the edge is in a completely straightened state when the second edge straightening jaw 220 is in the initial clamping position. For reference Figure 2 , the clamping surface length defined in this scheme refers to the total length of the first edge straightening jaw 210 and the second edge straightening jaw 220 along the left-right direction in FIG. 4 when clamping the edge. Figure 2

[0054] In another embodiment, only one second edge straightening jaw 220 is provided (not shown in the figure). After the first edge straightening jaw 210 moves to the edge position of the soft package battery cell 300, the first edge straightening jaw 210 stays at the left limit position or the right limit position of the soft package battery cell 300 in FIG. 4. At this time, the single second edge straightening jaw 220 is clamped on the edge of the soft package battery cell 300, and then under the action of the edge straightening mechanism 200, the second edge straightening jaw 220 moves away from the first edge straightening jaw 210 along the outer contour of the soft package battery cell 300, thereby completing the edge straightening operation of the soft package battery cell 300. Figure 1

[0055] ​​​In this design, the edge-straightening mechanism 200 includes a first support platform 230. The first support platform 230 is preferably a plate-like structure, on which a mounting position for a first edge-straightening gripper 210 is provided, and a clearance groove is provided for the movable connection of a second edge-straightening gripper 220. The first support platform 230 can be connected to the bracket 110, or it can be positioned to the side of the bracket 110 via other support components. Both the first edge-straightening gripper 210 and the second edge-straightening gripper 220 are mounted on the first support platform 230 to provide necessary support.

[0056] Reference Figure 2 and Figure 3 The first edge-straightening gripper 210 includes: a first driving member 211, a fixed base 212, and a first edge-straightening member 213.

[0057] The first driving component 211 is preferably a double-headed cylinder. Two fixed seats 212 are provided, both connected to the output end of the first driving component 211, so that when the first driving component 211 is working, it can drive the two fixed seats 212 to move closer or further apart. Each fixed seat 212 is connected to a first edge-trimming component 213. When the first driving component 211 drives the two fixed seats 212 to move closer or further apart, it also drives the two first edge-trimming components 213 to move closer or further apart, thereby achieving the clamping or loosening of the first edge-trimming gripper 210 on the soft-pack battery cell 300.

[0058] Reference Figure 2 When the 300mm edge of the soft-pack battery cell is folded, the raised part of the edge either faces... Figure 2 The front, or facing Figure 2 The back side. The first driving member 211 is connected to two first edge-trimming members 213 via two fixed seats 212. When the robot arm 100 drives the soft-pack battery cell 300 relative to the edge-trimming mechanism 200 along... Figure 2 As it moves upward, the two first edge-trimming pieces 213 abut against the front and back of the pouch cell 300 respectively, and move relative to the pouch cell 300 along... Figure 2 Moving downwards. As the two first edge-trimming pieces 213 move from the main body of the soft-pack cell 300 to the sealing position, regardless of whether they are facing downwards... Figure 2 The raised parts, whether on the front or the back, will be straightened by the push of any one of the first edge-straightening parts 213, and finally become flat and smooth under the clamping of the two first edge-straightening parts 213.

[0059] In this solution, each first edge trimming member 213 is provided with an elastic member 214. One end of the first edge trimming member 213 is provided with a limiting part 213a, and the two ends of the elastic member 214 are respectively pressed against the limiting part 213a and the fixing seat 212.

[0060] The elastic member 214 is preferably a spring. Its purpose is to enable the first driving member 211 to drive the two fixed seats 212 to move closer to each other, so that the two first edge rolling claws can be clamped on the soft-pack battery cell 300 with a certain amount of compression in the clamping direction; when the first driving member 211 drives the two fixed seats 212 to move away from each other, the two first edge rolling claws can be stretched in the loosening direction with a certain amount. With this structure, the body of the middle region of the soft-pack battery cell 300 and the edge can be clamped and rolled without damage. In addition, the arrangement of the elastic member 214 enables the first driving member 211 to drive the two first edge rolling claws to move closer to each other without moving to the limit position to achieve the edge rolling operation of the soft-pack battery cell 300. This enables the edge rolling device to adapt to the edge rolling needs of soft-pack battery cells 300 of different thicknesses. When rolling the edges of different types of soft-pack battery cells 300, manual adjustment is not required, thereby realizing high-speed online production of soft-pack battery cells 300.

[0061] Since the thickness of the middle region of the soft-pack battery cell 300 is greater than the thickness of the edge, during the movement of the two first edge rolling claws from the middle region of the soft-pack battery cell 300 to the edge position, the elastic member 214 can drive the two first edge rolling members 213 to move closer to each other to clamp the edge of the soft-pack battery cell 300 in time. This can prevent the part of the edge that is lifted from the middle region of the soft-pack battery cell 300 from entering between the two first edge rolling claws when moving to the edge position, thereby preventing the edge from being folded.

[0062] In this scheme, the edge rolling mechanism 200 further comprises a base 240, a second driving member 250, and an adapter seat 260.

[0063] The second driving member 250 is preferably a pneumatic cylinder, but can also be an electric motor or an oil cylinder. The base 240 is connected to the first support platform 230, and the second driving member 250 is connected to the base 240 to provide support for the second driving member 250. One end of the adapter seat 260 is connected to the output end of the second driving member 250, and the other end is connected to the second edge rolling clamp 220 to connect the first driving member 211 and the second edge rolling clamp 220.

[0064] Referring to Figure 2 and Figure 4 , when the first edge rolling clamp 210 completes the first edge rolling operation, the second edge rolling clamp 220 is actuated to clamp on the rolled edge of the soft-pack battery cell 300. Then, the two second driving members 250 drive the two adapter seats 260 to move away from each other, so that the two second edge rolling clamps 220 move away from each other to perform the second edge rolling operation on the edge of the soft-pack battery cell 300. Of course, when there is only one second edge rolling clamp 220, the corresponding second driving member 250, base 240, and adapter seat 260 are also only one.

[0065] Preferably, the base 240 is provided with a first guide rail 231, and a first sliding block 232 is movably arranged on the first guide rail 231, and the first sliding block 232 is connected to the adapter base 260 to provide guidance for the movement of the second edge rolling clamp jaw 220.

[0066] With reference to Figure 2 and Figure 4 , the second edge rolling clamp jaw 220 comprises a third driving member 221, and two second edge rolling jaws 222 connected to the output end of the third driving member 221, and the third driving member 221 is used to drive the two second edge rolling jaws 222 to move close to or away from each other.

[0067] The third driving member 221 is preferably a double-head air cylinder. When the third driving member 221 drives the two second edge rolling jaws 222 to move close to each other, it is used to realize the clamping operation of the second edge rolling clamp jaw 220 on the soft-pack battery cell 300; and when the third driving member 221 drives the two second edge rolling jaws 222 to move away from each other, it is used to enable the second edge rolling clamp jaw 220 to move back to the initial position under the driving of the edge rolling mechanism 200 after the straightening operation of the second edge rolling clamp jaw 220 on the edge of the soft-pack battery cell 300 is completed.

[0068] According to Figure 1 , Figure 5 and Figure 6 , the grabbing mechanism 130 comprises a second support platform 131, a fourth driving member 132, and a clamping block 133.

[0069] Specifically, the second support platform 131 is provided with a second guide rail 131a; the fourth driving member 132 is preferably two, and both of the fourth driving members 132 are arranged on the second support platform 131, wherein the fourth driving member 132 can be an air cylinder, a motor or an oil cylinder, and the output ends of the two fourth driving members 132 are oppositely arranged; the output end of each fourth driving member 132 is provided with a clamping block 133, which is used to make the two clamping blocks 133 move close to or away from each other, and each clamping block 133 is provided with a second sliding block 133a movably arranged on the second guide rail 131a to provide guidance for the movement of the clamping block 133.

[0070] After the robot 100 moves the grabbing mechanism 130 to the soft-pack battery cell 300 stacking position through the motion platform 120, and one end of the soft-pack battery cell 300 is located between the two clamping blocks 133, the two fourth driving members 132 drive the two clamping blocks 133 to move close to each other, so that they can clamp the soft-pack battery cell 300. After the edge rolling operation of the soft-pack battery cell 300 is completed and the battery cell is placed at the finished product stacking position, the two fourth driving members 132 drive the two clamping blocks 133 to move away from each other to complete the transportation operation of the soft-pack battery cell 300.

[0071] It should be noted that in this invention, the use of terms such as "first," "second," and "a" is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. The terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two elements or the interaction between two elements, unless otherwise explicitly specified. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0072] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0073] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A trimming device for pouch cells, characterized in that, include: The robotic arm includes a motion platform and a gripping mechanism. The motion platform is used to drive the gripping mechanism to move, and the gripping mechanism is used to grip the pouch cell. The edge-straightening mechanism includes a first edge-straightening gripper and a second edge-straightening gripper; wherein, the first edge-straightening gripper and the gripping mechanism are used to simultaneously perform a first edge-straightening operation on the soft-pack battery cell, and the second edge-straightening gripper is used to perform a second edge-straightening operation on the soft-pack battery cell; When the first edge-straightening operation is in progress, the gripping mechanism drives the soft-pack battery cell to move relative to the first edge-straightening claw, so that the first edge-straightening claw moves from the middle of the soft-pack battery cell to the edge of the soft-pack battery cell. When in the second edge-straightening operation, the second edge-straightening jaws grip the edge of the pouch cell and can move along the outer contour of the pouch cell.

2. The edge-trimming device for pouch cells as described in claim 1, characterized in that, There are two second edge-straightening grippers, which are respectively located on both sides of the first edge-straightening gripper. When the second edge-straightening operation is in progress, the two second edge-straightening grippers move towards each other to simultaneously perform edge-straightening operations on the soft-pack battery cell.

3. The edge-trimming device for pouch cells as described in claim 2, characterized in that, The length of the clamping surface of the first edge-straightening jaw is greater than the sum of the lengths of the clamping surfaces of the two second edge-straightening jaws.

4. The edge-trimming device for pouch cells as described in claim 1, characterized in that, The edge-straightening mechanism includes a first support platform, and the first edge-straightening gripper and the second edge-straightening gripper are disposed on the first support platform to provide support for the first edge-straightening gripper and the second edge-straightening gripper.

5. The edge-trimming device for pouch cells as described in claim 4, characterized in that, The first edge-straightening gripper includes: A first driving component is disposed on the first support platform; Two opposing fixed seats are provided, both of which are connected to the output end of the first driving member. The first driving member is used to drive the two fixed seats to move closer or further apart from each other. The first edge trimming component is connected to each of the fixed seats.

6. The edge-trimming device for pouch cells as described in claim 5, characterized in that, Each of the first edge-trimming parts is provided with an elastic element, and one end of the first edge-trimming part is provided with a limiting part. The two ends of the elastic element are respectively pressed against the limiting part and the fixing seat.

7. The edge-trimming device for pouch cells as described in claim 4, characterized in that, The edge-straightening mechanism also includes: A base, which is connected to the first support platform; The second driving component, which is connected to the base, is used to provide a power source for the second edge-straightening gripper; The adapter has one end connected to the output end of the second drive unit and the other end connected to the second edge-straightening gripper, and is used to connect the second drive unit and the second edge-straightening gripper.

8. The edge-trimming device for pouch cells as described in claim 7, characterized in that, The first support platform is provided with a first guide rail, and a first slider is movably disposed on the first guide rail. The first slider is connected to the adapter seat and is used to provide guidance for the movement of the second edge-straightening gripper.

9. The edge-trimming device for pouch cells as described in claim 1, characterized in that, The second edge-straightening gripper includes a third driving member and two second edge-straightening grippers connected to the output end of the third driving member. The third driving member is used to drive the two second edge-straightening grippers to move closer to or further away from each other.

10. The edge-trimming device for pouch cells as described in claim 1, characterized in that, The grasping mechanism includes: The second support platform is equipped with a second guide rail; Two fourth drive units are disposed on the second support platform, and the output ends of the two fourth drive units are disposed opposite to each other; Each of the fourth driving components has a clamping block at its output end, which is used to bring the two clamping blocks closer to each other and further apart. Each clamping block is provided with a second slider that is movably mounted on the second guide rail to guide the movement of the clamping block.

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