Battery cell module pressurizing tool

Abstract

The utility model relates to a battery cell module pressurizing tool. The battery cell module pressurizing tool comprises a rack, a conveying device, a tray, a truss and a pressurizing device, the conveying device extends in the Y-axis direction and is arranged on the rack, and the tray is arranged on the conveying device. The truss is a cuboid frame and arranged on the rack, and the top fixing frame is connected to the upper ends of the stand columns. The pressurizing device comprises a first pressing mechanism and a second pressing mechanism, the first pressing mechanism is used for pre-pressing the end plate surface of the battery cell module, and the second pressing mechanism is used for secondarily pressing the end plate surface of the battery cell module and pressing the upper end surface and the side surface of the battery cell module at the same time. According to the utility model, internal gaps of the battery cell module caused by stacking of the battery cells are reduced, and unnecessary displacement of the battery cell module is avoided before secondary pressurization of the end plate surface, so that the battery cell module is fixed to a specified position, and the working efficiency of pressurization and the first-pass yield of products are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery core module assembly, in particular to a battery core module pressurizing tool. Background Art

[0002] With the continuous development of the energy storage industry, the production of battery modules has also increased accordingly. Battery modules are an indispensable component in battery pack design. Traditional battery cell grouping mostly uses manpower, which has high labor costs, low production efficiency, and high risk of errors. During the stacking process of the current square battery cell modules, the dimensional accuracy of the battery cell modules is difficult to guarantee, and the first pass rate of the battery cell modules is not high.

[0003] Chinese patent number CN111509283B provides a square shell battery module pressurizing system, including a conveying device, a tooling plate structure, a feeding station and a pressurizing station. When the tooling plate structure is located at the feeding station, the conveying device drives the tooling plate structure to move to the pressurizing station, first presses the upper end surface of the battery cell module, then clamps it with a push plate and a baffle, and flattens the side panel after manually installing the side panel.

[0004] However, the tooling plate structure in the above-mentioned module pressurization system lacks components for pre-tightening the battery cell module before pressurization, and the stacked batteries in the battery cell module are prone to displacement and deviation before pressurization, which affects the work efficiency and first-time pass rate of the battery cell module pressurization. Utility Model Content

[0005] In view of this, the utility model proposes a battery module pressurizing tool.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides a battery module pressurizing tool, including: a frame, a conveying device, a tray, a truss and a pressurizing device, wherein:

[0007] The conveying device is extended along the Y-axis direction and arranged on the frame, and the tray is arranged on the conveying device;

[0008] The truss is a rectangular parallelepiped frame, including four columns and a top fixing frame, the columns are arranged on the frame along the Z-axis direction, the columns are located outside the conveying device, and the top fixing frame is connected to the upper end of the columns;

[0009] The pressurizing device is arranged on the truss, and the pressurizing device includes a first clamping mechanism and a second clamping mechanism. The first clamping mechanism is used for pre-pressing the end plate surface of the battery cell module, and the second clamping mechanism is used for secondary pressing of the end plate surface of the battery cell module, and simultaneously pressing the upper end surface and side surface of the battery cell module.

[0010] On the basis of the above technical solution, preferably, the first clamping mechanism includes two lead screws, a slide rail and an end plate clamp, wherein:

[0011] The two lead screws are arranged on the tray in a straight line along the X-axis direction, and the slide rails are arranged on the tray, and the slide rails are located on both sides of the lead screws and are parallel to the lead screws;

[0012] The two end plate clamps are respectively arranged on the two lead screws, and the rotation of the lead screw drives the corresponding end plate clamp to slide on the slide rail, so as to pre-pressurize the end plate surface of the battery cell module.

[0013] On the basis of the above technical solution, preferably, the first clamping mechanism further includes a base plate, a first sliding assembly, a first cylinder and a servo motor, and the base plate, the first sliding assembly, the first cylinder and the servo motor are each two in number, wherein:

[0014] The bottom plate is arranged on the frame, and the bottom plate is connected between two columns arranged in parallel along the Y-axis direction;

[0015] The first sliding assembly and the first cylinder are both arranged on the corresponding bottom plate, the servo motor is arranged on the corresponding first sliding assembly, and the first cylinder drives the servo motor on the corresponding first sliding assembly to move into position;

[0016] The servo motors are detachably connected to the corresponding lead screws, respectively, to drive or not drive the lead screws to rotate;

[0017] The first clamping mechanism pre-pressurizes the end plate surface of the battery cell module, which can reduce the internal gap of the battery cell module caused by battery cell stacking and avoid unnecessary displacement of the battery cell module before the second pressurization of the end plate surface, thereby fixing the battery cell module to a specified position.

[0018] On the basis of the above technical solution, preferably, the end plate clamp comprises a sliding seat and an end plate clamp, wherein:

[0019] The sliding seat is slidably connected to the sliding rail, and the upper end of the sliding seat is elastically connected to the end plate clamp, and the end plate clamp is U-shaped.

[0020] On the basis of the above technical solution, it is further preferred that the second clamping mechanism includes an end plate surface clamping assembly, and the end plate surface clamping assembly includes a second sliding assembly, a second cylinder, and a first pressing block, wherein:

[0021] The two ends of the second sliding assembly are arranged on two columns arranged in parallel along the Y-axis direction, and are located between the top fixed frame and the servo motor;

[0022] The second cylinder and the first pressing block are arranged on the second sliding assembly, and the second cylinder pushes the second sliding assembly to drive the first pressing block to perform secondary pressurization on the end plate surface of the battery cell module.

[0023] On the basis of the above technical solution, preferably, during the secondary pressurization process of the end plate surface of the battery cell module, the first pressing block is embedded in the U-shaped opening of the end plate clamp;

[0024] The end plate fixture cooperates with the first pressure block to ensure that the second pressurization of the end plate surface of the battery cell module can be carried out smoothly, prevent collision, friction and other obstacles to pressurization, and optimize the pressurization effect of the end plate surface.

[0025] On the basis of the above technical solution, preferably, the second clamping mechanism further includes a side clamping assembly, and the side clamping assembly includes a crossbeam, a third sliding assembly, a third cylinder and a second pressing block, wherein:

[0026] The two ends of the crossbeam are respectively connected to two columns arranged in parallel along the X-axis direction. The third sliding assembly is arranged on the crossbeam. The third cylinder and the second pressure block are arranged on the third sliding assembly. The third cylinder pushes the third sliding assembly to drive the second pressure block to pressurize the side of the battery cell module.

[0027] On the basis of the above technical solution, preferably, the second clamping mechanism further includes an upper end surface clamping assembly, and the upper end surface clamping assembly includes a first plate, a second plate, a fourth cylinder, at least one sliding rod and a rubber roller assembly, wherein:

[0028] The first flat plate is arranged at the upper end of the top fixed frame, the sliding rod connects the first flat plate and the second flat plate, the rubber roller assembly is slidably connected to the lower end of the second flat plate, and the fourth cylinder drives the sliding rod to drive the rubber roller assembly of the second flat plate to roll and flatten the upper end surface of the battery cell module.

[0029] On the basis of the above technical solution, preferably, the rubber roller assembly includes a plurality of rubber roller groups and rubber roller brackets, wherein:

[0030] The rubber roller bracket is connected to the lower end of the second flat plate, the rubber roller is elastically connected to the corresponding rubber roller bracket, and the rubber roller group has a plurality of rubber rollers;

[0031] The end plate surface clamping assembly, side surface clamping assembly and upper end surface clamping assembly of the above-mentioned second clamping mechanism jointly pressurize the battery cell module as a whole, so that each surface of the battery cell module is pressed at the same time, and the three groups of forces form a mutual balance, thereby improving the stability and accuracy of the pressurization link.

[0032] On the basis of the above technical solution, preferably, positioning sensors are provided on the first pressing block and the third cylinder to detect whether the corresponding pressing block reaches a designated position.

[0033] The battery module pressurizing tooling of the utility model has the following beneficial effects compared with the prior art:

[0034] (1) A component for pre-pressurizing the cell module is provided. Pre-pressurizing the end plate surface of the cell module can reduce the internal gap of the cell module caused by the stacking of cells and avoid unnecessary displacement of the cell module before the second pressurization of the end plate surface, thereby fixing the cell module to a specified position, thereby improving the pressurization work efficiency and the first-time qualified rate of the product.

[0035] (2) The end plate fixture cooperates with the first pressure block to ensure that the second pressurization of the end plate surface of the battery cell module can be carried out smoothly, preventing collision, friction and other obstacles to pressurization, and further optimizing the pressurization effect of the end plate surface.

[0036] (3) The end plate clamping assembly, side clamping assembly and upper end surface clamping assembly of the second clamping mechanism jointly pressurize the battery cell module as a whole, so that each surface of the battery cell module is pressed at the same time. The three groups of forces are balanced with each other, thereby improving the stability, accuracy and integration of the pressurization link, and ensuring that the overall dimensions of the battery cell module meet the product requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a schematic diagram of the overall structure of the battery module pressurizing tooling of the utility model;

[0039] Figure 2 It is a side view of the overall structure of the battery module pressurizing tooling of the utility model;

[0040] Figure 3 It is a top view of the first pressing mechanism of the utility model;

[0041] Figure 4 It is a front view of the first pressing mechanism of the utility model;

[0042] Figure 5 It is a three-dimensional diagram of the first pressing mechanism of the utility model;

[0043] Figure 6 It is a front view of the end plate surface pressing assembly of the utility model;

[0044] Figure 7 It is a top view of the side clamping assembly of the utility model;

[0045] Figure 8 It is a front view of the upper end surface pressing assembly of the utility model;

[0046] Specific annotations: 1-frame, 2-conveying device, 3-tray, 4-truss, 5-pressing device, 41-column, 42-top fixing frame, 51-first clamping mechanism, 52-second clamping mechanism, 511-screw, 512-slide rail, 513-end plate clamp, 514-bottom plate, 515-first sliding assembly, 516-first cylinder, 517-servo motor, 5131-sliding seat, 5132-end plate clamp, 521-end plate surface clamping assembly, 5211-second sliding assembly Parts, 5212-second cylinder, 5213-first pressure block, 522-side clamping assembly, 5221-crossbeam, 5222-third sliding assembly, 5223-third cylinder, 5224-second pressure block, 523-upper end surface clamping assembly, 5231-first plate, 5232-second plate, 5233-fourth cylinder, 5234-sliding rod, 5235-rubber roller assembly, 5236-rubber roller group, 5237-rubber roller bracket, 5238-rubber roller, 53-positioning sensor. DETAILED DESCRIPTION

[0047] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] like Figure 1-4 As shown, a battery cell module pressurizing tool of the utility model includes a frame 1, a conveying device 2, a tray 3, a truss 4 and a pressurizing device 5, the conveying device 2 extends along the Y-axis direction and is arranged on the frame 1, and the tray 3 is arranged on the conveying device 2.

[0049] The truss 4 is a rectangular frame, including four columns 41 and a top fixing frame 42. The columns 41 are arranged on the frame 1 along the Z-axis direction. The columns 41 are located outside the conveying device 2. The top fixing frame 42 is connected to the upper end of the columns 41.

[0050] In this embodiment, the battery module pressurizing tool further includes a lifting mechanism, which is disposed below the tray 3 . The lifting mechanism detaches the tray from the conveying device and lifts it to a pre-pressing station.

[0051] The pressurizing device 5 is arranged on the truss 4, and the pressurizing device 5 includes a first clamping mechanism 51 and a second clamping mechanism 52. The first clamping mechanism 51 is used for pre-pressing the end plate surface of the battery cell module, and the second clamping mechanism 52 is used for secondary pressing of the end plate surface of the battery cell module, and at the same time, the upper end surface and side surface of the battery cell module are initially pressed.

[0052] The first clamping mechanism 51 includes two lead screws 511, a slide rail 512 and an end plate clamp 513, wherein: the two lead screws 511 are arranged on the tray 3 at intervals along the X-axis direction, the slide rail 512 is arranged on the tray 3, and the slide rail 512 is located on both sides of the lead screw 511 and parallel to it.

[0053] The two end plate clamps 513 are respectively arranged on the two lead screws 511 , and the lead screws 511 drive the corresponding end plate clamps 513 to slide on the slide rails 512 , so as to pre-pressurize the end plate surface of the battery cell module.

[0054] Preferably, the conveying device in this embodiment is a double-speed chain, such as Figure 2 As shown, the double-speed chain is extended along the Y-axis direction and is arranged on the frame 1. The width of the pallet in the X-axis direction is smaller than the width between the corresponding double-speed chains. An anti-collision elastic component is installed on the edge of the pallet for protection.

[0055] When the double-speed chain transports the pallet to the designated pre-pressed position, it stops transporting. Figure 3 and Figure 4 In the process, the first cylinder 516 drives the first sliding component 515 to move toward the end plate surface close to the battery cell module. In this embodiment, a positioning sensor is provided on the inner side of the first sliding component 515, and the servo motor 517 and the lead screw 511 are plug-in connected. When the positioning sensor detects that the servo motor 517 and the lead screw 511 are plugged in, the servo motor 517 starts to drive the lead screw to rotate, driving the sliding seat 5131 and the end plate clamp 5132 to move to the pre-pressurization position of the end plate surface of the battery cell module to pre-pressurize it.

[0056] like Figure 5 As shown, the end plate clamp 5132 is U-shaped, and there are fixing screws and springs at the connection between the end plate clamp 5132 and the sliding seat 5131. The spring provides buffer protection to prevent excessive pressure during pre-pressurization from damaging the end plate of the battery cell module.

[0057] In a preferred embodiment, if Figure 6As shown, the second clamping mechanism 52 of the utility model includes an end plate surface clamping assembly 521, and the end plate surface clamping assembly 521 includes a second sliding assembly 5211, a second cylinder 5212, and a first pressing block 5213. The two ends of the second sliding assembly 5211 are arranged on two columns 41 arranged in parallel along the Y-axis direction, and are located between the top fixed frame 42 and the servo motor 517.

[0058] The second cylinder 5212 and the first pressing block 5213 are arranged on the second sliding assembly 5211. The second cylinder 5212 pushes the second sliding assembly 5211 to drive the first pressing block 5213 to perform secondary pressurization on the end plate surface of the battery module. During the secondary pressurization process on the end plate surface of the battery module, the first pressing block 5213 is embedded in the U-shaped opening of the end plate clamp 5132.

[0059] In a preferred embodiment, the piston rod of the second cylinder 5212 in the second clamping mechanism 52 passes through a support frame structure, and the support frame is fixed to the side of the top fixed frame 42 by a bracket. The support frame and the bracket prevent the end plate surface clamping assembly 521 from shaking during the pressurization process and affecting the pressurization effect, and also provide support protection to prevent the end plate surface clamping assembly above the servo motor 517 from falling due to gravity and causing mechanical damage to the components below; a positioning sensor 53 is installed on the upper end of the first clamping block 5213 to detect whether the first clamping block 5213 has moved into place, thereby helping the secondary pressurization of the end plate surface of the battery cell module to proceed smoothly and optimize the pressurization effect.

[0060] A positioning sensor is also provided on the second cylinder 5212 to detect whether the movement is in place. A pressure sensor is also provided on the first pressure block 5213 to detect the pressure during pressurization, accurately control the pressurization intensity, and improve work efficiency and pressurization qualification rate.

[0061] In a preferred embodiment, if Figure 7 As shown, the second clamping mechanism 52 of the utility model also includes a side clamping assembly 522, and the side clamping assembly 522 includes a crossbeam 5221, a third sliding assembly 5222, a third cylinder 5223 and a second pressure block 5224. The two ends of the crossbeam 5221 are respectively connected to two columns 41 arranged in parallel along the X-axis direction, the third sliding assembly 5222 is arranged on the crossbeam 5221, the third cylinder 5223 and the second pressure block 5224 are arranged on the third sliding assembly 5222, and the third cylinder 5223 pushes the third sliding assembly 5222 to drive the second pressure block 5224 to pressurize the side of the battery cell module.

[0062] In this embodiment, a positioning sensor is provided on the third cylinder 5223, and a pressure sensor is provided on the second pressure block 5224, which respectively detect whether the side clamping assembly 522 is moved into place and detect the pressure applied to the side of the battery cell module, thereby ensuring the accuracy of the pressurizing process on the side of the battery cell module.

[0063] In this embodiment, the third sliding assembly 5222 includes a sliding rod and a side plate, the sliding rod is connected between the second pressure block 5224 and the cross beam 5221, there is at least one sliding rod, the side plate is horizontally connected to the bottom end of the cross beam 5221, and there is a right-angled triangle support perpendicular to the side plate between the side plate and the cross beam 5221 for reinforcement. The above structure improves the stable support for the side clamping assembly 522.

[0064] like Figure 8 As shown, in a preferred embodiment, the second clamping mechanism 52 also includes an upper end surface clamping assembly 523, and the upper end surface clamping assembly includes a first plate 5231, a second plate 5232, a fourth cylinder 5233, at least one sliding rod 5234 and a rubber roller assembly 5235. The first plate 5231 is arranged at the upper end of the top fixed frame 42, the sliding rod 5234 connects the first plate 5231 and the second plate 5232, and the rubber roller assembly is slidably connected to the lower end of the second plate 5232. The fourth cylinder 5233 drives the sliding rod 5234 to drive the rubber roller assembly 5235 of the second plate 5232 to roll and flatten the upper end surface of the battery cell module.

[0065] The rubber roller assembly includes a plurality of rubber roller groups 5236 and a rubber roller bracket 5237 . The rubber roller bracket 5237 is connected to the lower end of the second flat plate 5232 . The rubber roller group 5236 has a plurality of rubber rollers 5238 . The rubber rollers 5238 are elastically connected to the corresponding rubber roller brackets 5237 .

[0066] In this embodiment, the spring between the rubber roller and the rubber roller holder acts as a buffer for the pressure acting on the upper end surface of the battery cell module, thereby avoiding mechanical damage to the upper end surface of the battery cell module caused by excessive pressure. At the same time, the connection between the rubber roller holder 5237 and the second flat plate 5232 is a detachable connection. The number of rubber roller groups and the spacing between the rubber rollers are adjusted according to the actual shape and size of the battery cell module, so as to adjust the pressurizing position and pressurizing area required for the upper end surface of battery cell modules of different models. A positioning sensor is arranged on the fourth cylinder 5233 to detect whether the movement is in place, and a pressure sensor is installed on the rubber roller 5238 to detect the pressure to ensure the accuracy of the pressurization.

[0067] The working process of the battery module pressurizing tooling of the utility model is as follows:

[0068] 1) The conveying device transports the battery cell module on the tray to the pressurizing station along the Y-axis direction, the lifting mechanism lifts the tray to a predetermined height, and the tray is separated from the conveying device;

[0069] 2) The first pressing mechanism pre-presses the end plate surface of the battery cell module;

[0070] 3) The end plate surface pressing assembly of the second pressing mechanism performs secondary pressing on the end plate surface of the battery cell module; at the same time, the side surface pressing assembly of the second pressing mechanism performs initial pressing on the side surface of the battery cell module, and the upper end surface pressing assembly of the second pressing mechanism performs initial pressing on the upper end surface of the battery cell module.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A battery module pressurizing tool, Features: include: A frame (1), a conveying device (2), a pallet (3), a truss (4) and a pressurizing device (5), wherein: The conveying device (2) is arranged on the frame (1) and extends along the Y-axis direction, and the tray (3) is arranged on the conveying device (2); The truss (4) is a rectangular parallelepiped frame, comprising four columns (41) and a top fixing frame (42), wherein the columns (41) are arranged on the frame (1) along the Z-axis direction, the columns (41) are located outside the conveying device (2), and the top fixing frame (42) is connected to the upper end of the columns (41); The pressurizing device (5) is arranged on the truss (4), and comprises a first pressing mechanism (51) and a second pressing mechanism (52), wherein the first pressing mechanism (51) is used for pre-pressing the end plate surface of the battery cell module, and the second pressing mechanism (52) is used for secondary pressing of the end plate surface of the battery cell module, and simultaneously performing primary pressing of the upper end surface and side surface of the battery cell module.

2. The battery module pressurizing tool as claimed in claim 1, Features: The first clamping mechanism (51) comprises two lead screws (511), a slide rail (512) and an end plate clamp (513), wherein: The two lead screws (511) are arranged on the tray (3) at intervals along the X-axis direction, the slide rail (512) is arranged on the tray (3), and the slide rail (512) is located on both sides of the lead screw (511) and is parallel to the lead screw (511); The two end plate clamps (513) are respectively arranged on the two lead screws (511), and the lead screws (511) drive the corresponding end plate clamps (513) to slide on the slide rail (512) to pre-pressurize the end plate surface of the battery cell module.

3. The battery module pressurizing tool as claimed in claim 2, Features: The first pressing mechanism (51) further comprises a bottom plate (514), a first sliding assembly (515), a first cylinder (516) and a servo motor (517), wherein the bottom plate (514), the first sliding assembly (515), the first cylinder (516) and the servo motor (517) are each two in number, wherein: The bottom plate (514) is arranged on the frame (1), and the bottom plate (514) is connected between two upright posts (41) arranged in parallel along the Y-axis direction; The first sliding component (515) and the first cylinder (516) are both arranged on the corresponding bottom plate (514), the servo motor (517) is arranged on the corresponding first sliding component (515), and the first cylinder (516) drives the servo motor (517) on the corresponding first sliding component (515) to move into position; The servo motors (517) are detachably connected to the corresponding lead screws (511) to drive or not drive the lead screws (511) to rotate.

4. The battery module pressurizing tool as claimed in claim 3, It is characterized in that The end plate fixture (513) comprises a sliding seat (5131) and an end plate clamp (5132), wherein: The sliding seat (5131) is slidably connected to the sliding rail (512), and the upper end of the sliding seat (5131) is elastically connected to the end plate clamp (5132), and the end plate clamp (5132) is U-shaped.

5. The battery module pressurizing tool as claimed in claim 4, Features: The second pressing mechanism (52) comprises an end plate surface pressing assembly (521), and the end plate surface pressing assembly (521) comprises a second sliding assembly (5211), a second cylinder (5212), and a first pressing block (5213), wherein: The two ends of the second sliding component (5211) are arranged on two columns (41) arranged in parallel along the Y-axis direction, and are located between the top fixed frame (42) and the servo motor (517); The second cylinder (5212) and the first pressing block (5213) are arranged on the second sliding component (5211), and the second cylinder (5212) pushes the second sliding component (5211) to drive the first pressing block (5213) to perform secondary pressurization on the end plate surface of the battery cell module.

6. The battery module pressurizing tool as claimed in claim 5, Features: During the secondary pressurization process of the end plate surface of the battery cell module, the first pressing block (5213) is embedded in the U-shaped opening of the end plate clamp (5132).

7. The battery module pressurizing tool as claimed in claim 5, Features: The second pressing mechanism (52) further comprises a side pressing assembly (522), wherein the side pressing assembly (522) comprises a crossbeam (5221), a third sliding assembly (5222), a third cylinder (5223) and a second pressing block (5224), wherein: The two ends of the crossbeam (5221) are respectively connected to two columns (41) arranged in parallel along the X-axis direction; the third sliding component (5222) is arranged on the crossbeam (5221); the third cylinder (5223) and the second pressing block (5224) are arranged on the third sliding component (5222); the third cylinder (5223) pushes the third sliding component (5222) to drive the second pressing block (5224) to pressurize the side of the battery cell module.

8. The battery module pressurizing tool as claimed in claim 7, Features: The second pressing mechanism (52) further comprises an upper end surface pressing assembly (523), the upper end surface pressing assembly comprising a first plate (5231), a second plate (5232), a fourth cylinder (5233), at least one sliding rod (5234) and a rubber roller assembly (5235), wherein: The first flat plate (5231) is arranged at the upper end of the top fixed frame (42), the sliding rod (5234) connects the first flat plate (5231) and the second flat plate (5232), the rubber roller assembly is slidably connected to the lower end of the second flat plate (5232), and the fourth cylinder (5233) drives the sliding rod (5234) to drive the rubber roller assembly (5235) of the second flat plate (5232) to roll and flatten the upper end surface of the battery cell module.

9. The battery module pressurizing tool as claimed in claim 8, It is characterized in that The rubber roller assembly includes a plurality of rubber roller groups (5236) and a rubber roller bracket (5237), wherein: The rubber roller bracket (5237) is connected to the lower end of the second flat plate (5232), the rubber roller group (5236) has a plurality of rubber rollers (5238), and the rubber rollers (5238) are elastically connected to the corresponding rubber roller brackets (5237).

10. The battery module pressurizing tool as claimed in claim 7, Features: Positioning sensors (53) are provided on the first pressing block (5213) and the third cylinder (5223) for detecting whether the corresponding pressing block has reached a designated position.

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