Battery module press shaping device and battery module production line

Abstract

The application relates to the field of battery processing, and discloses a battery module pressurizing and shaping device and a battery module production line. The battery module pressurizing and shaping device comprises a machine tool, a clamping mechanism and a pressurizing mechanism. The machine tool comprises a main frame and a workbench. The clamping mechanism is arranged on the main frame and comprises a first driving component and a clamping component. The clamping component is in sliding connection with the main frame, and the driving component drives the clamping component to move and clamp the battery module. The pressurizing mechanism is arranged on the main frame and comprises a second driving component and a pressing piece. An avoiding structure is arranged on the clamping component and is arranged in correspondence with the pressing piece. The avoiding structure is used for the pressing piece to move in and out. Compared with the prior art, the avoiding structure has an avoiding space for the pressing piece to move in, can process different battery modules with different sizes, and does not need to design different toolings for pressurizing and shaping of battery modules with different sizes, and has the advantage of high utilization.

Description

Technical Field

[0001] This invention relates to the field of battery processing, and in particular to a battery module pressurizing and shaping equipment and a battery module production line. Background Technology

[0002] During the manufacturing process of battery modules, the cells need to be pressurized and shaped during module stacking to ensure the module's dimensions and the flatness of the cells. However, different electric vehicle models require different numbers and arrangements of cells in the modules, resulting in significant differences in module size. In actual production, different tooling needs to be designed for pressurizing and shaping different sized modules. This method limits the utilization rate of the battery module production line and increases production costs, both of which have limited practicality. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention provides a battery module pressurizing and shaping equipment and a battery module production line, which has the advantages of high utilization rate and strong overall versatility.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A battery module pressurizing and shaping device, comprising:

[0006] The machine tool includes a main frame for fixing and mounting parts and a worktable for placing battery modules;

[0007] A clamping mechanism, disposed on the main frame, includes a first driving component and a clamping component, the clamping component being slidably connected to the main frame, the driving component driving the clamping component to move and clamp the battery module; and

[0008] A pressurizing mechanism is mounted on the main frame. The pressurizing mechanism includes a second driving component and a pressing component. The second driving component drives the pressing component to pressurize and shape the battery module.

[0009] The clamping component has an avoidance structure, which is correspondingly provided with the pressing component, and the avoidance structure allows the pressing component to move in and out.

[0010] In one embodiment, the clamping mechanism is a symmetrical clamping structure, so there are two clamping mechanisms arranged symmetrically to each other. The two first driving components drive the corresponding clamping components, driving the two clamping components to move closer to each other and clamp the battery module.

[0011] In one embodiment, the clamping component includes:

[0012] Mounting base, the mounting base is slidably connected to the main frame, and the mounting base is connected to the displacement output component of the first driving component;

[0013] A clamping member, wherein the clearance structure is disposed on the clamping member.

[0014] In one embodiment, the avoidance structure includes an avoidance opening;

[0015] The clearance opening is provided on the clamping member, and the clearance opening allows the pressing member to pass into or out of the clamping member;

[0016] The height of the clearance opening is greater than the pressurization feed distance of the pressing component.

[0017] In one embodiment, the clamping mechanism further includes a fine-tuning feed component;

[0018] The fine-tuning feed component includes a third drive component, which is disposed on the mounting base, and the clamping member is connected to the displacement output component of the third drive component.

[0019] In one embodiment, the clamping member is slidably connected to the main frame, and the sliding direction of the clamping member is parallel or in the same direction as the sliding direction of the mounting base.

[0020] In one embodiment, the first driving component includes:

[0021] Lead screw, which is rotatably connected to the main frame;

[0022] A transmission sleeve is disposed on the mounting base and is threadedly connected to the lead screw;

[0023] A drive motor, the output shaft of which is connected to the lead screw drive.

[0024] In one embodiment, the second driving component includes a driving member and a transmission member, one end of the transmission member being connected to the pressurizing member, and the other end being drivenly connected to the output component of the driving member;

[0025] The driving component includes a pneumatic telescopic cylinder or a hydraulic telescopic cylinder.

[0026] In one embodiment, two second driving components are provided, and the two second driving components are symmetrically arranged on the pressing member.

[0027] This application also provides a battery module production line, including the battery module pressurizing and shaping equipment described in the above solution.

[0028] The present invention has the following advantages due to the adoption of the above technical solutions:

[0029] When processing battery modules using this battery module pressurizing and shaping equipment, the clamping mechanism is operated to pre-clamp the battery modules on the worktable. Then, the pressurizing mechanism is operated, and the second drive component drives the pressing component to pressurize and shape the battery modules. The clearance structure ensures that the displacement of both the clamping component and the pressing component does not interfere with each other. When processing shorter battery modules, the clearance structure allows the pressing component to pass through the clamping component. Simultaneously, the clearance structure also provides clearance space for the pressing component's feed. Therefore, this clearance structure provides clearance space for the pressing component's feed, enabling the processing of different battery modules with varying dimensions. Different tooling for pressurizing and shaping is no longer required for battery modules of different sizes, resulting in high utilization and strong overall versatility. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the specific structure of the battery module pressurization and shaping equipment in one embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the specific structure of the clamping mechanism in one embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the specific structure of the first driving component in one embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the specific structure of the second driving component in one embodiment of the present invention;

[0034] Figure 5 This is a schematic diagram of the working state of the battery module pressurizing and shaping equipment in one embodiment of the present invention;

[0035] The markings in the diagram are as follows:

[0036] 10. Machine tool; 101. Main frame; 1011. Slide rail; 102. Worktable;

[0037] 20. Clamping mechanism; 201. First driving component; 2011. Lead screw; 2012. Drive motor; 202. Clamping component; 2021. Mounting base; 2022. Clamping part; 203. Clearance structure; 2031. Clearance opening;

[0038] 30. Pressurizing mechanism; 301. Second driving component; 3011. Driving component; 3012. Transmission component; 302. Pressing component;

[0039] 40. Fine-tuning feed unit; 401. Third drive unit;

[0040] 50. Battery module. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention are described clearly and completely below. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0042] Unless otherwise defined, the technical or scientific terms used in this invention shall have the ordinary meaning understood by one of ordinary skill in the art to which this invention pertains. The terms "first," "second," "third," "fourth," and similar terms used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0043] During the processing of battery modules, the number and arrangement of battery cells in the corresponding modules vary for different electric vehicle models, resulting in significant differences in module size. Different tooling needs to be designed for pressure shaping of modules of different sizes. To address the above technical problems, this invention provides a battery module pressure shaping equipment and a battery module production line, which has the advantages of high utilization rate and strong overall versatility.

[0044] The technical solution of the present invention will be described in detail below with reference to specific examples.

[0045] Reference Figure 1 , Figure 2 as well as Figure 3As shown, the battery module pressurizing and shaping equipment provided by the present invention includes a machine tool 10, a clamping mechanism 20, and a pressurizing mechanism 30. The machine tool 10 includes a main frame 101 for fixing and mounting components and a worktable 102 for placing the battery module. The clamping mechanism 20 is mounted on the main frame 101 and includes a first driving component 201 and a clamping component 202. The clamping component 202 is slidably connected to the main frame 101, and the first driving component 201 drives the clamping component 202 to move and clamp the battery module. The pressurizing mechanism 30 is mounted on the main frame 101 and includes a second driving component 301 and a pressing component 302. The second driving component 301 drives the pressing component 302 to pressurize and shape the battery module. Simultaneously, a clearance structure 203 is provided on the clamping component 202, corresponding to the pressing component 302, allowing the pressing component 302 to move in and out.

[0046] It should be noted that, in this embodiment, the battery module pressure shaping equipment is applied to the pressure shaping process of the battery module 50. When performing pressure shaping on the battery module 50, the battery module 50 is installed on the worktable 102. Then, the battery module 50 needs to be pre-clamped and positioned to restrict the degree of freedom of the battery module 50 in the horizontal direction. Then, the battery module 50 is pressure shaped in the vertical direction. The above is the pressure shaping process of the battery module 50.

[0047] Reference Figure 1 as well as Figure 5 As shown, specifically in this embodiment, the avoidance structure 203 ensures that the displacement movements of both the clamping component 202 and the pressing component 302 will not interfere with each other. It should be noted that when the clamping component 202 pre-clamps battery modules 50 of varying lengths, the overall displacement feed amount of the clamping component 202 is also different. When the battery module 50 is longer, the clamping component 202 only needs a smaller displacement feed amount to pre-clamp the battery module 50; when the battery module 50 is shorter, the clamping component 202 needs a relatively larger displacement feed amount to achieve pre-clamping of the battery module 50.

[0048] The clearance structure 203 allows the pressing member 302 to pass through the clamping member 202 without obstruction. Specifically, when the battery module 50 is relatively long, the feed amount of the clamping member 202 is small. At this time, there is a distance between the pressing member 302 and the clamping member 202, so the clamping member 202 will not interfere with the feed of the pressing member 302. When the battery module 50 is relatively short, the feed amount of the clamping member 202 is large. At this time, the clamping member 202 will enter the feed range of the pressing member 302. During the feed process of the clamping member 202, the pressing member 302 will gradually approach and pass through the clamping member 202 through the clearance structure 203. When the battery module 50 completes the pre-clamping, the clearance structure 203 has clearance space for the pressing member 302 to feed, so the pressing member 302 can be fed and pressurized normally. In this way, clearance of the pressing member 302 is achieved.

[0049] For example, when processing the battery module 50 using this battery module pressurizing and shaping equipment, the battery module 50 on the worktable 102 is pre-clamped by operating the clamping mechanism 20, and then the pressurizing mechanism 30 is operated, and the second driving component 301 drives the pressing component 302 to pressurize and shape the battery module 50. The clearance structure 203 ensures that the displacement of both the clamping component 202 and the pressing component 302 will not interfere with each other. When the battery module pressing and shaping equipment processes a battery module 50 with a shorter length, the clearance structure 203 allows the pressing component 302 to pass through the clamping component 202. At the same time, the clearance structure 203 also has clearance space for the pressing component 302 to feed. Therefore, this clearance structure 203 has clearance space for the pressing component 302 to feed, and can process different battery modules 50 with different sizes. Different tooling is no longer needed for pressing and shaping of battery modules 50 of different sizes. It has the advantages of high utilization rate and strong overall versatility.

[0050] Specifically, in this embodiment, the clamping mechanism 20 is a symmetrical clamping structure, so there are two clamping mechanisms 20, which are arranged symmetrically to each other. The two first driving components 201 drive the corresponding clamping components 202, driving the two clamping components 202 to move closer to each other and clamp the battery module.

[0051] Reference Figure 2 As shown, in one embodiment, the clamping component 202 is further refined, wherein the clamping component 202 includes a mounting base 2021 and a clamping member 2022, wherein the mounting base 2021 is slidably connected to the main frame 101, and the mounting base 2021 is connected to the displacement output member of the first driving component 201. In this embodiment, the avoidance structure 203 is provided on the clamping member 2022.

[0052] For example, when the battery module pressurizing and shaping equipment is operating normally, the two first driving components 201 will drive the corresponding mounting base 2021 and clamping member 2022 to slide on the main frame 101, so that the two clamping members 2022 move closer to each other to pre-clamp the battery module 50.

[0053] In this embodiment, the avoidance structure 203 is further refined. The avoidance structure 203 includes an avoidance opening 2031, which is opened on the clamping member 2022. The avoidance opening 2031 allows the pressing member 302 to pass through or out of the clamping member 2022. The height of the avoidance opening 2031 is greater than the pressurization feed distance of the pressing member 302.

[0054] It should be noted that in this embodiment, the pressing member 302 is generally arranged in the shape of a rectangular plate. For example, when the first driving member 201 drives the clamping member 2022 to slide on the main frame 101, if the battery module is a battery module 50 with a smaller length, the feed amount of the clamping member 2022 is larger. Therefore, the clamping member 2022 will enter the feed range of the pressing member 302. At this time, the pressing member 302 will pass through the clamping member 2022 through the clearance port 2031. Therefore, the pressing member 302 will not interfere with the movement of the clamping member 2022. After the clamping member 2022 pre-clamps the battery module 50, the second driving member 301 drives the pressing member 302 to pressurize and shape the battery module 50. Since the height of the clearance opening 2031 is greater than the pressing feed distance of the pressing member 302, the vertical movement range of the pressing member 302 is all inside the clearance opening 2031, and the pressing member 302 will not touch the clearance opening 2031. Therefore, the clamping member 2022 will not interfere with the movement of the pressing member 302. Through this structural setting, the clearance effect is achieved.

[0055] Reference Figure 2 As shown, more preferably, in this embodiment, the battery module pressurizing and shaping equipment further includes a fine-tuning feed component 40, which is used to fine-tune the displacement of the clamping member 2022. The fine-tuning feed component 40 includes a third driving component 401, which is disposed on the mounting base 2021, and the clamping member 2022 is connected to the displacement output component of the third driving component 401.

[0056] For example, in order to improve the pre-clamping efficiency of the battery module 50, the first driving component 201 and the third driving component 401 are defined in this embodiment. The first driving component 201 is a high-speed drive and the third driving component 401 is a low-speed drive. In actual operation, the operator can operate the first driving component 201 to make the clamping member 2022 quickly approach the battery module 50. Then the first driving component 201 stops moving and the operator operates the third driving component 401. The third driving component 401 drives the clamping member 2022 to approach at a low speed and clamp the battery module 50. This setting can greatly improve the pre-clamping efficiency of the clamping mechanism 20, thereby improving the overall working efficiency of the battery module pressurizing and shaping equipment.

[0057] Reference Figure 3 As shown, specifically, in this embodiment, the connection relationship of each component is further refined. Two slide rails 1011 are fixedly mounted on the main frame 101, and a corresponding slider is mounted on the mounting base 2021. The mounting base 2021 is slidably connected to the two slide rails 1011 via the slider. More preferably, to optimize the overall structure of the clamping component 202, a corresponding slider is also mounted on the clamping member 2022. The clamping member 2022 is slidably connected to the slide rails 1011 on the main frame 101 via the slider. Furthermore, the sliding direction of the clamping member 2022 is parallel or in the same direction as the sliding direction of the mounting base 2021.

[0058] It should be noted that the connection structure of the clamping member 2022 optimizes the overall stress distribution of the clamping member 202. Specifically, the third drive component 401 is mounted on the mounting base 2021. When the third drive component 401 drives the clamping member 2022 to move, since the clamping member 2022 and the main frame 101 are slidably connected via the slide rail 1011, the weight of the clamping member 2022 is borne by the main frame 101 as a whole. This optimizes the stress distribution of the third drive component 401, which only needs to drive the clamping member 2022 to slide on the slide rail 1011, and no longer needs to bear the overall weight of the clamping member 2022. Specifically, in this embodiment, the third drive component 401 is a linear motion motor to achieve the sliding adjustment of the clamping member 2022.

[0059] Specifically, in this embodiment, the first driving component 201 includes a lead screw 2011, a transmission sleeve, and a drive motor 2012. The lead screw is rotatably connected to the main frame 101, the transmission sleeve (not shown in the figure) is disposed on the mounting base 2021, the transmission sleeve is threadedly connected to the lead screw, and the output shaft of the drive motor 2012 is drivenly connected to the lead screw.

[0060] Reference Figure 4As shown, the second driving component 301 includes a driving element 3011 and a transmission element 3012. One end of the transmission element 3012 is connected to the pressurizing element, and the other end is connected to the output component of the driving element 3011. The driving element 3011 includes a pneumatic telescopic cylinder or a hydraulic telescopic cylinder. To improve the feeding stability of the second driving component 301, in this embodiment, the driving element 3011 is a hydraulic telescopic cylinder. More preferably, two second driving components 301 are provided, symmetrically arranged on the lowering element 302. This optimizes the pressurizing effect of the lowering element 302, resulting in a more balanced overall force distribution.

[0061] Specific implementation process:

[0062] When processing the battery module 50 using this battery module pressure forming equipment, the battery module 50 to be processed is installed on the worktable 102. Then, the first drive component 201 is operated, which drives the mounting base 2021 to move on the slide rail 1011 of the main frame 101, causing the clamping component 2022 to quickly approach the battery module 50. Then, the third drive component 401 is operated, which drives the clamping component 2022 to approach the battery module 50 at a low speed until the two clamping components 2022 pre-clamp the battery module 50. At this time, the pressure forming process can be performed. During the shaping process, the second drive component 301 is manipulated, and the two second drive components 301 drive the pressing component 302 to pressurize and shape the battery module 50. The clearance structure 203 ensures that the displacement of both the clamping component 202 and the pressing component 302 will not interfere. When the battery module pressing and shaping equipment processes a battery module 50 with a shorter length, the clearance structure 203 allows the pressing component 302 to pass through the clamping component 202. At the same time, the clearance structure 203 also has clearance space for the pressing component 302 to feed. Therefore, this clearance structure 203 has clearance space for the pressing component 302 to feed, which can process different battery modules 50 with different sizes. Different tooling is no longer needed for pressing and shaping of battery modules 50 of different sizes. It has the advantages of high utilization rate and strong overall versatility.

[0063] This application also provides a battery module 50 production line, including the battery module pressurizing and shaping equipment described in the above solution.

[0064] By setting the clearance structure 203, the displacement of both the clamping component 202 and the pressing component 302 will not interfere with each other. Therefore, the clearance structure 203 has clearance space for the pressing component 302 to feed, and can process different battery modules 50 with different sizes. Different tooling is no longer needed for pressurizing and shaping of battery modules 50 of different sizes. It has the advantages of high utilization rate and strong overall versatility.

[0065] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A battery module pressurizing and shaping device, characterized in that, include: The machine tool includes a main frame for fixing and mounting parts and a worktable for placing battery modules; A clamping mechanism is provided on the main frame. The clamping mechanism includes a first driving component and a clamping component. The clamping component is slidably connected to the main frame. The first driving component drives the clamping component to move and clamp the battery module. as well as A pressurizing mechanism is mounted on the main frame. The pressurizing mechanism includes a second driving component and a pressing component. The second driving component drives the pressing component to pressurize and shape the battery module. The clamping component is provided with a clearance structure, which is correspondingly provided with the pressing component, and the clearance structure allows the pressing component to move in and out. The clamping mechanism is a symmetrical clamping structure, so there are two clamping mechanisms, which are arranged symmetrically to each other. The two first driving components drive the corresponding clamping components to move closer to each other along the length direction of the pressing component and clamp the battery module. The clamping component includes: Mounting base, the mounting base is slidably connected to the main frame, and the mounting base is connected to the displacement output component of the first driving component; A clamping member, wherein the clearance structure is disposed on the clamping member; The avoidance structure includes an avoidance opening; The clearance opening is provided on the clamping member, and the clearance opening allows the pressing member to pass into or out of the clamping member; The height of the clearance opening is greater than the pressurization feed distance of the pressing component.

2. The battery module pressurizing and shaping equipment according to claim 1, characterized in that, The clamping mechanism also includes a fine-tuning feed component; The fine-tuning feed component includes a third drive component, which is disposed on the mounting base, and the clamping member is connected to the displacement output component of the third drive component.

3. The battery module pressurizing and shaping equipment according to claim 2, characterized in that, The clamping member is slidably connected to the main frame, and the sliding direction of the clamping member is parallel or in the same direction as the sliding direction of the mounting base.

4. The battery module pressurizing and shaping equipment according to claim 2, characterized in that, The first driving component includes: Lead screw, which is rotatably connected to the main frame; A transmission sleeve is disposed on the mounting base and is threadedly connected to the lead screw; A drive motor, the output shaft of which is connected to the lead screw drive.

5. The battery module pressurizing and shaping equipment according to claim 1, characterized in that, The second driving component includes a driving component and a transmission component. One end of the transmission component is connected to the pressing component, and the other end is connected to the output component of the driving component. The driving component includes a pneumatic telescopic cylinder or a hydraulic telescopic cylinder.

6. The battery module pressurizing and shaping equipment according to claim 5, characterized in that, There are two second driving components, which are symmetrically arranged on the pressing member.

7. A battery module production line, characterized in that, The battery module pressurizing and shaping equipment includes any one of claims 1-6.

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