Automatic stacking mechanism for square aluminum shell battery cells

Abstract

The utility model belongs to the technical field of lithium battery production, and discloses a square aluminum shell battery cell automatic stacking mechanism which comprises a bottom plate support, a back plate and an air cylinder are installed on the bottom plate support, a push plate parallel to the back plate is connected to the bottom plate support between the back plate and the air cylinder in a sliding mode, and a battery cell for stacking is placed between the back plate and the push plate. A cylinder head of the cylinder is vertically connected with the side, away from the back plate, of the push plate. The pushing plate is driven by the air cylinder to act, automatic stacking is achieved through cooperation with the back plate, the battery cell stacking device has the advantages of being high in stacking efficiency, beneficial to achieving automation, capable of being compatible with different sizes, high in product consistency and the like, and the problems that an existing battery cell stacking device cannot well achieve placing and transporting of battery cells, and the product quality is poor are solved. The problems that manual operation is needed after battery cells are placed and stacked, the stacking efficiency and the automation degree are low, the product consistency is poor, and rapid production of lithium batteries is inconvenient are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lithium battery production, and specifically relates to an automatic stacking mechanism for square aluminum shell battery cells. Background Art

[0002] At present, lithium batteries are increasingly used in various digital devices such as notebooks, digital cameras and digital video cameras. In addition, they also have broad prospects in automobiles, mobile base stations and energy storage power stations. In this case, the use of batteries is no longer a single battery like in mobile phones, but more in the form of battery packs connected in series or parallel. In particular, the battery packs used in electric vehicles are generally composed of modules composed of battery cells, and the modules are then used as battery packs. Therefore, the battery cells need to be stacked. Generally, before stacking, square aluminum shell batteries need to be coated or glued on the surface of the batteries to ensure that the stacked battery group has a certain adhesion. After the coating or gluing is completed, the module accessories are placed in the stacking tooling in sequence according to the assembly order, and the stacking tooling applies a specific pressure value in the stacking direction of the square batteries, thereby pressing the components together and controlling the overall module size to be within the required range; the existing stacking method generally adopts manual stacking assembly, which has a large assembly workload and a large battery weight, and requires a lot of energy from the operator, and the quality of the product is difficult to guarantee. It is easy to have problems such as the size of the battery module after stacking is too large or too small, and the pressure exceeds the limit, resulting in low production efficiency; the stacking efficiency and automation level are low, which is not convenient for the rapid production of lithium batteries. Therefore, it is urgent to design an automatic stacking mechanism for automatic stacking to solve the shortcomings caused by manual stacking assembly. Utility Model Content

[0003] The utility model aims to provide an automatic stacking mechanism for square aluminum shell battery cells, so as to solve the above problems existing in the prior art.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An automatic stacking mechanism for square aluminum shell battery cells comprises a base plate bracket, on which a back plate and a cylinder are mounted, a push plate parallel to the back plate is slidably connected to the base plate bracket between the back plate and the cylinder, and is used to place the battery cells for stacking between the back plate and the push plate; the cylinder head of the cylinder is vertically connected to the side of the push plate away from the back plate.

[0006] As a preferred technical solution in the utility model, at least two backplane support plates are installed on the side of the backplane away from the push plate, all the backplane support plates are in contact with or fixedly connected to one side of the backplane, and all the backplane support plates are parallel to each other and fixed on the base plate bracket.

[0007] As a preferred technical solution in the utility model, a cylinder connecting plate is installed on the bottom plate bracket on one side of the push plate, the cylinder is installed on the side of the cylinder connecting plate away from the push plate, and the cylinder connecting plate and the push plate are parallel to each other.

[0008] As a preferred technical solution in the utility model, at least one guide column is vertically connected to the cylinder connecting plate, and at least one limiting hole is provided on the push plate, and each guide column is matched and penetrated into a limiting hole.

[0009] As a preferred technical solution in the utility model, a linear bearing is installed in the limiting hole, and each guide column is inserted into the linear bearing.

[0010] As a preferred technical solution in the utility model, the cylinder and the cylinder connecting plate are detachably connected to the base plate bracket, and connecting plate support plates are installed on the base plate brackets on both sides of the cylinder, and all connecting plate support plates are connected to the cylinder connecting plate.

[0011] As a preferred technical solution in the utility model, adjustable long holes are opened on the base plate brackets on both sides of the cylinder, all the adjustable long holes are parallel to each other and extend along the sliding direction of the push plate, and each adjustable long hole is slidably matched with the lower part of a connecting plate support plate.

[0012] As a preferred technical solution in the utility model, a plurality of threaded holes arranged in a straight line are provided on the base plate bracket below the cylinder, the straight line where all the threaded holes are located is perpendicular to one side of the push plate, and bolts are provided in the threaded holes to detachably connect the cylinder to the base plate bracket.

[0013] Beneficial effect: The utility model realizes automatic stacking by driving the push plate through the cylinder and cooperating with the back plate, and has the advantages of high stacking efficiency, being conducive to automation, being compatible with different sizes, and having high product consistency. It solves the problem that the existing battery cell stacking device cannot realize the placement and transportation of battery cells well, the placement and stacking of battery cells require manual operation, the stacking efficiency and automation level are low, the product consistency is poor, and it is not convenient for rapid production of lithium batteries. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] 1-support plate; 2-back plate; 3-guide column; 4-battery cell; 5-adjustable long hole; 6-cylinder; 601-cylinder head; 7-bottom plate bracket; 8-push plate; 9-cylinder connecting plate; 10-connecting plate support plate. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the utility model will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the utility model, but does not constitute a limitation of the utility model.

[0017] Example:

[0018] like Figure 1 As shown, this embodiment provides an automatic stacking mechanism for square aluminum shell battery cells, including a bottom plate bracket 7, on which a back plate 2 and a cylinder 6 are installed, and a push plate 8 parallel to the back plate 2 is slidably connected to the bottom plate bracket 7 between the back plate 2 and the cylinder 6, so as to place the battery cells 4 for stacking between the back plate 2 and the push plate 8, wherein the back plate 2 serves as a positioning plate when stacking the battery cells 4, and the push plate 8 serves as a moving plate when stacking the battery cells 4, and the push plate 8 moves; the cylinder head 601 of the cylinder 6 is vertically connected to the side of the push plate 8 away from the back plate 2, and the push plate 8 can be driven by the cylinder 6 to move, and before stacking the battery cells 4, the air The cylinder 6 first drives the push plate 8 away from the back plate 2, so that the distance between the back plate 2 and the push plate 8 is enlarged to facilitate the placement of the battery cells. Then the glue-coated battery cells 4 are transferred from the outside to between the back plate 2 and the push plate 8 through the robot arm. When a set number of battery cells have been stacked between the back plate 2 and the push plate 8, the cylinder 6 is started. The cylinder 6 drives the push plate 8 to move toward the back plate 2. When the push plate 8 moves to the contact point with the battery cells 4, the cylinder 6 continues to push so that a fixed pressure is reached between the battery cells 4. Under the action of glue coating and the pressure of the cylinder 6, the battery cells 4 are automatically stacked. After stacking, the battery cells 4 are transferred to the next process by the robot arm.

[0019] The utility model drives the push plate 8 to move through the cylinder 6, and cooperates with the back plate 2 to realize the automatic stacking of 4, and has the advantages of high stacking efficiency and being conducive to automation, compatibility with different sizes, and high product consistency. It solves the problem that the existing battery cell stacking device cannot well realize the placement and transportation of battery cells, the placement and stacking of battery cells require manual operation, the stacking efficiency and automation level are low, the product consistency is poor, and it is not convenient for rapid production of lithium batteries.

[0020] As a preferred implementation scheme in this embodiment, it needs to be further explained that at least two backplane support plates 1 are installed on the side of the backplane 2 away from the push plate 8, all of the backplane support plates 1 are in contact with or fixedly connected to one side of the backplane 2, and all of the backplane support plates 1 are parallel to each other and are fixed on the bottom plate bracket 7 to ensure the stability of the backplane support plates 1. The stability of the backplane 2 can be enhanced by the backplane support plates 1, so that the backplane 2 can withstand the force of the push plate 8 squeezing the battery cells 4, thereby making the stacking of the battery cells 4 more stable.

[0021] As a preferred implementation scheme in this embodiment, it needs to be further explained that a cylinder connecting plate 9 is installed on the bottom plate bracket 7 on one side of the push plate 8, and the cylinder 6 is installed on the side of the cylinder connecting plate 9 away from the push plate 8, so that there is a larger space between the cylinder connecting plate 9 and the back plate 2 for the push plate 8 to move and adjust, and the cylinder connecting plate 9 and the push plate 8 are parallel to each other. After being connected with the cylinder 6, the push plate 8 can be stably driven by the cylinder 6 to approach or move away from the back plate 2. It should be noted that in this embodiment, at least one of the cylinder connecting plate 9 and the cylinder 6 is fixedly connected or detachably connected to the bottom plate bracket 7 to ensure the relative stability of the cylinder 6 when working.

[0022] As a preferred implementation scheme in this embodiment, it needs to be further explained that at least one guide column 3 is vertically connected to the cylinder connecting plate 9, and at least one limiting hole is provided on the push plate 8. Each guide column 3 is matched and penetrated into a limiting hole, so that the push plate 8 can be limited by the guide column 3. Combined with the control of the push plate 8 by the cylinder 6, the movement of the push plate 8 is more stable.

[0023] As a preferred implementation scheme in this embodiment, it needs to be further explained that a linear bearing is installed in the limiting hole, and each guide column 3 is inserted into the linear bearing, so that the movement of the push plate 8 is more stable and the friction between the push plate 8 and the guide column 3 is reduced.

[0024] As a preferred implementation scheme in this embodiment, it needs to be further explained that connecting plate support plates 10 are installed on the base plate brackets 7 on both sides of the cylinder 6, and all connecting plate support plates 10 are connected to the cylinder connecting plate 9. The stability of the cylinder connecting plate 9 can be further enhanced by the connecting plate support plates 10.

[0025] As a preferred implementation scheme in this embodiment, it needs to be further explained that the cylinder 6 and the cylinder connecting plate 9 are detachably connected to the base plate bracket 7, and adjustable long holes 5 are opened on the base plate bracket 7 on both sides of the cylinder 6. All the adjustable long holes 5 are parallel to each other and extend along the sliding direction of the push plate 8. Each adjustable long hole 5 is slidably matched with the lower part of a connecting plate support plate 10. In practice, the connecting plate support plate 10, the cylinder 6 and the cylinder connecting plate 9 are combined into an integral cylinder assembly, and then the connecting plate support plate 10 can be used to slide in the adjustable long holes 5 to realize the sliding of the cylinder assembly in the adjustable long holes 5, so as to realize the adjustment of the distance between the push plate 8 and the back plate 2, realize the stacking of different numbers of battery cells 4, and improve flexibility.

[0026] As a preferred implementation scheme in this embodiment, it needs to be further explained that a plurality of threaded holes arranged in a straight line are provided on the base plate bracket 7 below the cylinder 6, and the straight line where all the threaded holes are located is perpendicular to one side of the push plate 8. Bolts are provided in the threaded holes to detachably connect the cylinder 6 to the base plate bracket 7, which can ensure the stability of the cylinder 6 during operation and facilitate the adjustment of the relative position of the cylinder 6 on the base plate bracket 7, which is simple and practical.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic stacking mechanism for square aluminum shell battery cells, characterized in that: The invention comprises a bottom plate bracket (7), a back plate (2) and a cylinder (6) are mounted on the bottom plate bracket (7), a push plate (8) parallel to the back plate (2) is slidably connected to the bottom plate bracket (7) between the back plate (2) and the cylinder (6), and is used for placing stacking cells (4) between the back plate (2) and the push plate (8); a cylinder head (601) of the cylinder (6) is vertically connected to a side of the push plate (8) away from the back plate (2).

2. The automatic stacking mechanism for square aluminum shell batteries according to claim 1, characterized in that: At least two backplane support plates (1) are installed on the side of the backplane (2) away from the push plate (8), all the backplane support plates (1) are in contact with or fixedly connected to one side of the backplane (2), and all the backplane support plates (1) are parallel to each other and are fixed on the bottom plate bracket (7).

3. The automatic stacking mechanism for square aluminum shell batteries according to claim 1, characterized in that: A cylinder connecting plate (9) is installed on the bottom plate bracket (7) on one side of the push plate (8), and the cylinder (6) is installed on the side of the cylinder connecting plate (9) away from the push plate (8), and the cylinder connecting plate (9) and the push plate (8) are parallel to each other.

4. The automatic stacking mechanism for square aluminum shell batteries according to claim 3 is characterized in that: At least one guide column (3) is vertically connected to the cylinder connecting plate (9), and at least one limiting hole is provided on the push plate (8), and each guide column (3) is matched and penetrated in a limiting hole.

5. The automatic stacking mechanism for square aluminum shell batteries according to claim 4, characterized in that: A linear bearing is installed in the limiting hole, and each guide column (3) is inserted into the linear bearing.

6. An automatic stacking mechanism for square aluminum shell battery cells according to any one of claims 3 to 5, characterized in that: Connecting plate support plates (10) are installed on the bottom plate brackets (7) on both sides of the cylinder (6), and all the connecting plate support plates (10) are connected to the cylinder connecting plates (9).

7. The automatic stacking mechanism for square aluminum shell batteries according to claim 6, characterized in that: The cylinder (6) and the cylinder connecting plate (9) are detachably connected to the base plate bracket (7), and the base plate brackets (7) on both sides of the cylinder (6) are provided with adjustable long holes (5), all of which are parallel to each other and extend along the sliding direction of the push plate (8), and each of the adjustable long holes (5) is slidably matched with the lower part of a connecting plate support plate (10).

8. An automatic stacking mechanism for square aluminum shell battery cells according to any one of claims 1 to 4, characterized in that: A plurality of threaded holes arranged in a straight line are provided on the base plate bracket (7) below the cylinder (6), the straight line where all the threaded holes are located is perpendicular to one side of the push plate (8), and bolts are provided in the threaded holes to detachably connect the cylinder (6) to the base plate bracket (7).

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