Battery module extrusion device

Abstract

The utility model relates to the technical field of battery module manufacturing, in particular to a battery module extrusion device which comprises a conveying table used for conveying battery modules, the conveying table comprises a first conveying belt and a second conveying belt, the first conveying belt is adjacent to the second conveying belt, an extrusion workbench is arranged on one side of the second conveying belt, and the extrusion workbench is arranged on the other side of the second conveying belt. A first pushing device working towards the extrusion workbench is arranged on the other side of the second conveying belt through a mounting frame, a baffle is arranged on the side, away from the second conveying belt, of the extrusion workbench, and a second pushing device working towards the direction of the second conveying belt is mounted on the baffle. A positioning plate is arranged at the end, close to the first conveying belt, of the extrusion workbench, and an extrusion device working in the direction of the positioning plate is arranged at the other end of the extrusion workbench. And the effects of automatic conveying and automatic extrusion are achieved. And meanwhile, the structure is simple, repair and maintenance are rapid and convenient, the cost is relatively low, and the production cost can be better controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of battery module manufacturing, in particular to a battery module extrusion device. Background Art

[0002] In the process of making battery modules, it is usually necessary to arrange multiple single cells in a row and close to each other in order to reduce the gap between the battery cells, and then bundle a row of single cells together through end plates and side plates to form a battery module. In addition, the size of the battery cell will change periodically during the charging and discharging process and when the ambient temperature changes. The battery cell needs to maintain a certain internal working pressure to ensure sufficient infiltration of the electrolyte. Reasonable module assembly pressure helps to give full play to the performance of the battery cell. The module assembly pressure is also obtained by squeezing the module components during the module assembly process.

[0003] In the prior art, a robot is usually used to grab the arranged battery modules to the extrusion tooling. However, due to the large number of individual batteries and the relative sliding between the individual batteries, there is a risk of the battery modules falling during the grabbing process. In addition, the robot has a complex structure, which makes repair and maintenance cumbersome and expensive. In addition, it is also common to manually put the battery module into the extrusion tooling for extrusion, and then move the battery module out of the extrusion device after extrusion. However, the battery module is composed of multiple batteries, which makes it heavy, resulting in high labor intensity for workers, and they cannot work continuously, resulting in reduced production efficiency. The heavy weight may also cause the battery module to fall during the worker's handling process, damaging the battery module or injuring the worker, resulting in a high damage rate and safety hazards. Utility Model Content

[0004] In order to solve the above-mentioned problems of how to avoid reducing the probability of damage to the battery during transportation, and how to ensure the safety of operators and reduce labor intensity, the utility model provides a battery module extrusion device.

[0005] The technical solution of this utility model is as follows:

[0006] A battery module extrusion device includes a conveyor platform for conveying battery modules, the conveyor platform includes a first conveyor belt and a second conveyor belt, the first conveyor belt is adjacent to the second conveyor belt, an extrusion workbench is arranged on one side of the second conveyor belt, a first pushing device working toward the extrusion workbench is arranged on the other side of the second conveyor belt through a mounting frame, a baffle is arranged on the side of the extrusion workbench away from the second conveyor belt, a second pushing device working toward the second conveyor belt is mounted on the baffle, a positioning plate is arranged at one end of the extrusion workbench close to the first conveyor belt, and an extrusion device working toward the positioning plate is arranged at the other end of the extrusion workbench. The effect of automatic conveying and automatic extrusion is achieved.

[0007] Furthermore, the first conveyor belt and the second conveyor belt are at the same level, and limit plates are provided on both sides of the conveyor platform, the limit plates protrude from the upper surfaces of the first conveyor belt and the second conveyor belt, and no limit plate is provided on the side of the second conveyor belt close to the extrusion workbench, so that the first pushing device can push the battery module onto the pressurizing workbench for extrusion.

[0008] Furthermore, there are two mounting frames, which are arranged at both ends of one side of the second conveyor belt, a connecting plate is arranged between the two mounting frames, a first pushing device is arranged on the connecting plate, the first pushing device includes a first cylinder, a first pushing plate is arranged at the power output end of the first cylinder, the length of the first pushing plate is the same as the length of the battery module and the connecting plate, the top ends of the two mounting frames are respectively provided with a first sensing device and a second sensing device on one side facing the extrusion workbench, and the first sensing device is close to the first conveyor belt, so as to facilitate the sensing battery module to fully enter between the two sensing devices, and facilitate the first pushing device to fully push the battery module onto the extrusion workbench.

[0009] Furthermore, a second pushing device is provided in the middle of the baffle, the second pushing device includes a second cylinder, a second pushing plate is installed at the power output end of the second cylinder, the horizontal height of the first pushing device is half of the height of the battery module, and the horizontal heights of the first pushing device and the second pushing device are the same, so as to facilitate pushing the middle of the side of the battery module, pushing it out of the pressurized workbench, and entering the second conveyor belt for transmission.

[0010] Furthermore, the positioning plate is installed at one end of the extrusion workbench close to the first conveyor belt and abuts against one end of the baffle plate, a reinforcing plate for reinforcement is provided on one side of the positioning plate away from the extrusion device, and the positioning plate is parallel to one end of the second conveyor belt close to the first conveyor belt. Ensure that the positioning plate does not affect the entry of the battery module, and at the same time enhance the stability of the positioning plate.

[0011] Furthermore, the extrusion device includes a mounting plate, the mounting plate is mounted on the extrusion workbench through a reinforcing plate, an extrusion cylinder is arranged in the middle of the mounting plate, and an extrusion plate working toward the positioning plate is installed at the power output end of the extrusion cylinder through a guide column, pushing the battery module toward the positioning plate to complete the extrusion work.

[0012] Furthermore, the guide posts are divided into five, one end of each of the five guide posts is connected to the power output end of the extrusion cylinder, and the other ends of the five guide posts are respectively arranged toward the four corners and the center of the extrusion plate, so that the extrusion force of the extrusion plate on the battery module is more uniform.

[0013] Furthermore, when the extrusion plate is not in operation, it is parallel to the end of the second conveyor belt away from the first conveyor belt, the extrusion plate and the positioning plate are arranged parallel to each other, and the extrusion plate is perpendicular to the extrusion workbench, so as to avoid affecting the entry of the battery module and ensure that the battery module will not be damaged by extrusion.

[0014] Furthermore, a vacuum adsorption chamber is provided under the extrusion workbench between the positioning plate and the extrusion plate, and an array of vacuum adsorption holes communicating with the vacuum adsorption chamber is provided on the upper surface of the extrusion workbench at the position of the vacuum adsorption chamber, so as to avoid displacement between battery modules during extrusion.

[0015] Furthermore, the width between the two limit plates and the width of the extrusion workbench are the same as the width of the battery module, ensuring normal transportation and extrusion of the battery module.

[0016] The beneficial effects of the utility model are:

[0017] (1): The utility model has a simple structure. Through the cooperation of the first conveyor belt, the second conveyor belt, the first sensing device and the second sensing device, the battery module is intermittently transported to one side of the extrusion workbench. The first pushing device, the second pushing device, the positioning plate and the extrusion device cooperate with each other to achieve the extrusion of the battery module. The extruded battery module is pushed away from the extrusion workbench by the second pushing device and transported to the next workstation by the second conveyor belt, thereby achieving uninterrupted extrusion of multiple groups of battery modules, avoiding damage to the battery module and reducing the labor intensity of workers. At the same time, the simple structure makes maintenance not only quick and convenient, but also relatively low in cost, which can better control production costs.

[0018] (2): A vacuum device is provided at the bottom of the vacuum adsorption chamber of the device. The diameter of the vacuum adsorption holes arranged in an array is small and is less than one-third of the width of the bottom of a single battery. When the battery module is squeezed and displaced, the vacuum adsorption holes can always be covered to avoid exposure of the vacuum adsorption holes, resulting in the inability to effectively adsorb the battery module. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0020] In the attached picture:

[0021] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0022] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 .

[0023] The components represented by the reference numerals in the figure are:

[0024] 1. Conveying platform; 2. First conveyor belt; 3. Second conveyor belt; 4. Mounting frame; 5. First cylinder; 6. First push plate; 7. First sensing device; 8. Second sensing device; 9. Limiting plate; 10. Extrusion workbench; 11. Positioning plate; 12. Vacuum adsorption chamber; 13. Vacuum adsorption hole; 14. Second cylinder; 15. Second push plate; 16. Baffle; 17. Extrusion cylinder; 18. Extrusion plate; 19. Guide column; 20. Mounting plate. DETAILED DESCRIPTION

[0025] The exemplary embodiments of the present disclosure will be described in more detail below in conjunction with the accompanying drawings. It should be noted that these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. The present disclosure can be implemented in various forms and should not be limited by the embodiments described herein.

[0026] Example

[0027] This embodiment provides a battery module extrusion device, see Figure 1-Figure 2 , including a conveyor 1 for conveying battery modules, the conveyor 1 including a first conveyor belt 2 and a second conveyor belt 3, the first conveyor belt 2 is adjacent to the second conveyor belt 3, an extrusion workbench 10 is arranged on one side of the second conveyor belt 3, a first pushing device working toward the extrusion workbench 10 is arranged on the other side of the second conveyor belt 3 through a mounting frame 4, a baffle 16 is arranged on the side of the extrusion workbench 10 away from the second conveyor belt 3, a second pushing device working toward the second conveyor belt 3 is installed on the baffle 16, a positioning plate 11 is arranged at one end of the extrusion workbench 10 close to the first conveyor belt 2, and an extrusion device working toward the positioning plate 11 is arranged at the other end of the extrusion workbench 10. The effect of automatic conveying and automatic extrusion is achieved.

[0028] The first conveyor belt 2 and the second conveyor belt 3 are both equipped with a built-in power source and have the same rotation speed. When the first transmission belt drives the battery modules abutting against each other to move toward the second conveyor belt 3, the second conveyor belt 3 works synchronously. When the battery modules are completely transported to the second conveyor belt 3, the first conveyor belt 2 and the second conveyor belt 3 stop working at the same time, and the first pushing device is started to push the battery modules on the second conveyor belt 3 onto the extrusion workbench 10. When the battery modules are pushed to the extrusion workbench 10, they are located between the positioning plate 11 and the extrusion device, and the first pushing device and the second pushing device are both abutted against the battery module. The extrusion device is started to drive the battery module to move toward the positioning plate 11 until the battery module abuts against the positioning plate 11. The extrusion device continues to work to extrude the battery module. At this time, with the cooperation of the first pushing device, the second pushing device, the positioning plate 11 and the extrusion device, the battery module is effectively extruded.

[0029] After extrusion, the extrusion device is reset, and while the first pushing device is reset, the second pushing device is started to push the extruded battery module from the extrusion workbench 10 until the battery module is completely pushed onto the second conveyor belt 3, so that the second conveyor belt 3 can convey the extruded battery module to the next station.

[0030] The first conveyor belt 2 and the second conveyor belt 3 are at the same level. Limiting plates 9 are provided on both sides of the conveyor platform 1. The limiting plates 9 protrude from the upper surfaces of the first conveyor belt 2 and the second conveyor belt 3. The second conveyor belt 3 is not provided with a limiting plate 9 on the side close to the extrusion workbench 10. This facilitates the first pushing device to push the battery module onto the pressurizing workbench for extrusion. The width between the two limiting plates 9 and the width of the extrusion workbench 10 are the same as the width of the battery module. This ensures normal transportation and extrusion of the battery module.

[0031] The same horizontal height makes it easy for the first conveyor belt 2 to smoothly transport the battery module to the second conveyor belt 3. The limit plate 9 can ensure that the battery module always remains parallel to the first pushing device during the conveying process. When the battery module reaches the second conveyor belt 3, since the side of the second conveyor belt 3 in contact with the extrusion workbench 10 is not provided with a limit plate 9, the first pushing device can push the battery module to the extrusion workbench 10 without hindrance, so that the battery module is completely on the extrusion workbench 10.

[0032] There are two mounting frames 4, which are arranged at both ends of one side of the second conveyor belt 3. A connecting plate is arranged between the two mounting frames 4, and a first pushing device is arranged on the connecting plate. The first pushing device includes a first cylinder 5, and a first push plate 6 is installed at the power output end of the first cylinder 5. The length of the first push plate 6 is the same as that of the battery module and the connecting plate. The top ends of the two mounting frames 4 facing the extrusion workbench 10 are respectively provided with a first induction device 7 and a second induction device 8, and the first induction device 7 is close to the first conveyor belt 2. It is convenient for the induction battery module to fully enter between the two induction devices, and it is convenient for the first pushing device to fully push the battery module onto the extrusion workbench 10.

[0033] The first sensing device 7 cooperates with the second sensing device 8. When the first sensing device 7 senses that the battery module has completely passed, and the second sensing device 8 has not yet sensed the battery module, it proves that the battery module is between the two sensing devices. Since the first push plate 6 is the same length as the battery module, it is more conducive to completely pushing the battery module to avoid pushing the battery module apart, resulting in failure to perform the extrusion work normally.

[0034] A second pushing device is provided in the middle of the baffle 16, and the second pushing device includes a second cylinder 14, and a second pushing plate 15 is installed at the power output end of the second cylinder 14. The horizontal height of the first pushing device is half of the height of the battery module, and the horizontal heights of the first pushing device and the second pushing device are the same. It is convenient to push the middle of the side of the battery module, push it out of the pressurized workbench, and enter the second conveyor belt 3 for transmission.

[0035] After the extrusion work is completed, the second cylinder 14 works to completely push the extruded battery module to the second conveyor belt 3 through the second push plate 15, without manual removal, thereby reducing the labor intensity of workers and avoiding damage to the extruded battery module.

[0036] The positioning plate 11 is installed on one end of the extrusion workbench 10 close to the first conveyor belt 2 and abuts against one end of the baffle 16. A reinforcing plate for reinforcement is provided on the side of the positioning plate 11 away from the extrusion device. The positioning plate 11 is parallel to the end of the second conveyor belt 3 close to the first conveyor belt 2. Ensure that the positioning plate 11 will not affect the entry of the battery module, and at the same time enhance the stability of the positioning plate 11. The extrusion device includes a mounting plate 20, and the mounting plate 20 is mounted on the extrusion workbench 10 through a reinforcing plate. An extrusion cylinder 17 is provided in the middle of the mounting plate 20, and an extrusion plate 18 working toward the positioning plate 11 is installed at the power output end of the extrusion cylinder 17 through a guide column 19. Push the battery module to move toward the positioning plate 11 to complete the extrusion work.

[0037] The reinforcing plate can ensure the stability of the positioning plate 11 and the extrusion device during the extrusion of the battery module, so that the battery module is subjected to more uniform force and the battery module is avoided from being squeezed. When the positioning plate 11 and the extrusion plate 18 are not working, the distance between them is greater than the battery module, which is conducive to the battery module entering the extrusion workbench 10. When the extrusion plate 18 moves driven by the extrusion cylinder 17, it pushes the battery module toward the positioning plate 11 until the battery module abuts against the positioning plate 11, and the extrusion plate 18 continues to extrude the battery module.

[0038] The guide posts 19 are divided into five, one end of each of the five guide posts 19 is connected to the power output end of the extrusion cylinder 17, and the other ends of the five guide posts 19 are respectively arranged toward the four corners and the center of the extrusion plate 18, so that the extrusion force of the extrusion plate 18 on the battery module is more uniform.

[0039] When the extrusion cylinder 17 is working, in order to avoid the force acting only on the middle of the extrusion plate 18, which would cause the battery module to be unevenly stressed during the extrusion process, the force of the extrusion cylinder 17 is dispersed to the middle and four corners of the extrusion plate 18 through the guide column 19, so that the battery module is more evenly stressed during the extrusion process, thus avoiding damage to the battery module and improving the yield of the battery module.

[0040] When the extrusion plate 18 is not in operation, it is parallel to the end of the second conveyor belt 3 away from the first conveyor belt 2, the extrusion plate 18 and the positioning plate 11 are arranged parallel to each other, and the extrusion plate 18 is perpendicular to the extrusion workbench 10. This avoids affecting the entry of the battery module and ensures that the battery module will not be squeezed and damaged.

[0041] Make sure that the surface in contact with the battery module is completely close to the battery module to ensure that the force on the battery module is more even during the extrusion process, so as to avoid the battery module being squeezed and damaged due to uneven force.

[0042] A vacuum adsorption chamber 12 is arranged under the extrusion workbench 10 between the positioning plate 11 and the extrusion plate 18, and an array of vacuum adsorption holes 13 communicating with the vacuum adsorption chamber 12 is arranged on the upper surface of the extrusion workbench 10 at the position of the vacuum adsorption chamber 12 to avoid displacement between battery modules during extrusion.

[0043] In order to avoid relative up and down movement between the battery modules during the extrusion process, the bottom of the battery module is adsorbed by vacuum so that it always abuts against the upper surface of the extrusion workbench 10, and a vacuum device is provided at the bottom of the vacuum adsorption chamber 12. The vacuum adsorption holes 13 arranged in an array have a small diameter and are less than one-third of the width of the bottom of a single battery. When the battery module is extruded and displaced, the vacuum adsorption holes 13 can always be covered to avoid exposure of the vacuum adsorption holes 13, which makes it impossible to effectively adsorb the battery module.

[0044] In this embodiment, the working principle of the battery module extrusion device is:

[0045] First, the first conveyor belt is started, and the battery modules placed in sequence on the first conveyor belt 2 are transported to the direction of the second conveyor belt 3, and at the same time, the second conveyor belt is started, and when the first sensing device 7 senses that a group of battery modules has completely passed, and the second sensing device 8 has not sensed the battery modules, the first conveyor belt 2 and the second conveyor belt 3 stop working at the same time; then, the first cylinder 5 is started, and the battery modules on the second conveyor belt 3 are completely pushed to the extrusion workbench 10 through the first push plate 6, and abut against the second push plate 15. At this time, the first cylinder 5 stops working, and both sides of the battery module abut against the first push plate 6 and the second push plate 15 at the same time, and negative pressure is formed in the vacuum adsorption chamber 12, and the battery module is adsorbed through the vacuum adsorption port; then, the extrusion cylinder 17 works, and the battery module is pushed to abut against the positioning plate 11 through the extrusion plate 18, and the battery module is continuously pushed to abut against the battery module. The extrusion work is carried out until the required extrusion effect is achieved, and the worker tightens the extruded battery module through the tightening sleeve; next, the extrusion cylinder 17 drives the extrusion plate 18 to reset, and the first cylinder 5 drives the first push plate 6 to reset; then, the second cylinder 14 works, and the second push plate 15 pushes the extruded battery module to the second transmission belt until the battery module is completely pushed to the second transmission belt; finally, the second conveyor belt 3 is started first, and the first conveyor belt 2 is started after 2S, and the second conveyor belt 3 drives the extruded battery module to the next station, and the new battery module continues to move onto the second conveyor belt 3 until the second sensing device 8 senses that the extruded battery module is completely transported away, and the first sensing device 7 senses that the new battery module has completely passed, then the first conveyor belt 2 and the second conveyor belt 3 stop at the same time, and the above steps are repeated until all battery modules are extruded.

[0046] The above is only a preferred specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or additions, subtractions or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A battery module extrusion device, comprising a conveying platform (1) for conveying battery modules, characterized in that: The conveyor platform (1) comprises a first conveyor belt (2) and a second conveyor belt (3), the first conveyor belt (2) being adjacent to the second conveyor belt (3), an extrusion workbench (10) being arranged on one side of the second conveyor belt (3), a first pushing device operating towards the extrusion workbench (10) being arranged on the other side of the second conveyor belt (3) via a mounting frame (4), a baffle plate (16) being arranged on the side of the extrusion workbench (10) away from the second conveyor belt (3), a second pushing device operating towards the direction of the second conveyor belt (3) being mounted on the baffle plate (16), a positioning plate (11) being arranged on one end of the extrusion workbench (10) close to the first conveyor belt (2), and an extrusion device operating towards the direction of the positioning plate (11) being arranged on the other end of the extrusion workbench (10).

2. A battery module extrusion device according to claim 1, characterized in that: The first conveyor belt (2) and the second conveyor belt (3) are at the same horizontal height, and limit plates (9) are arranged on both sides of the conveyor platform (1), and the limit plates (9) protrude from the upper surfaces of the first conveyor belt (2) and the second conveyor belt (3), and no limit plate (9) is arranged on the side of the second conveyor belt (3) close to the extrusion workbench (10).

3. A battery module extrusion device according to claim 2, characterized in that: There are two mounting frames (4), which are arranged at both ends of one side of the second conveyor belt (3). A connecting plate is arranged between the two mounting frames (4), and a first pushing device is arranged on the connecting plate. The first pushing device includes a first cylinder (5), and a first push plate (6) is installed at the power output end of the first cylinder (5). The length of the first push plate (6) is the same as that of the battery module and the connecting plate. A first sensing device (7) and a second sensing device (8) are respectively arranged on the top ends of the two mounting frames (4) facing the extrusion workbench (10), and the first sensing device (7) is close to the first conveyor belt (2).

4. A battery module extrusion device according to claim 3, characterized in that: A second pushing device is arranged in the middle of the baffle (16), the second pushing device comprises a second cylinder (14), a second pushing plate (15) is installed at the power output end of the second cylinder (14), the horizontal height of the first pushing device is half of the height of the battery module, and the horizontal height of the first pushing device is the same as that of the second pushing device.

5. A battery module extrusion device according to claim 4, characterized in that: The positioning plate (11) is installed on one end of the extrusion workbench (10) close to the first conveyor belt (2) and abuts against one end of the baffle (16); a reinforcing plate for reinforcement is provided on the side of the positioning plate (11) away from the extrusion device; the positioning plate (11) is parallel to one end of the second conveyor belt (3) close to the first conveyor belt (2).

6. A battery module extrusion device according to claim 5, characterized in that: The extrusion device comprises a mounting plate (20), wherein the mounting plate (20) is mounted on an extrusion workbench (10) via a reinforcing plate, an extrusion cylinder (17) is arranged in the middle of the mounting plate (20), and an extrusion plate (18) working towards a positioning plate (11) is mounted at the power output end of the extrusion cylinder (17) via a guide column (19).

7. A battery module extrusion device according to claim 6, characterized in that: The guide columns (19) are divided into five, one end of each of the five guide columns (19) is connected to the power output end of the extrusion cylinder (17), and the other ends of the five guide columns (19) are respectively arranged toward the four corners and the center of the extrusion plate (18).

8. A battery module extrusion device according to claim 7, characterized in that: When not in operation, the extrusion plate (18) is parallel to the end of the second conveyor belt (3) away from the first conveyor belt (2), the extrusion plate (18) and the positioning plate (11) are arranged parallel to each other, and the extrusion plate (18) is perpendicular to the extrusion workbench (10).

9. A battery module extrusion device according to claim 8, characterized in that: A vacuum adsorption chamber (12) is arranged under the extrusion workbench (10) between the positioning plate (11) and the extrusion plate (18), and an array of vacuum adsorption holes (13) communicating with the vacuum adsorption chamber (12) is arranged on the upper surface of the extrusion workbench (10) at the position of the vacuum adsorption chamber (12).

10. A battery module extrusion device according to claim 9, characterized in that: The width between the two limiting plates (9) and the width of the extrusion workbench (10) are both the same as the width of the battery module.

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