Battery cell assembling machine

Abstract

The utility model discloses a battery cell assembling machine which comprises a mounting platform, and a battery cell placing bottom plate is arranged on the surface of the mounting platform; a top pressing end plate is arranged on the front side of the battery cell placement bottom plate and is driven by a driving motor to move; a tail pressing end plate is arranged on the rear side of the battery cell placement bottom plate and is connected with a push-pull quick clamp; a left side positioning and fixing block is fixedly arranged on the left side of the battery cell placing bottom plate; and a right side pressing and fixing block is arranged on the right side of the battery cell placement bottom plate and is connected with a side edge pressing clamp. In the stacking and extruding process of the battery cells, the flatness can be kept in the XYZ three axes, so that the occurrence probability of solder skips and insufficient solder in the subsequent welding operation process is reduced, the production efficiency is improved, and the rate of finished products is ensured.

Description

Technical Field

[0001] The utility model relates to an assembly machine, in particular to a battery cell assembly machine, belonging to the technical field of new energy batteries. Background Art

[0002] In the field of new energy batteries, in order to meet the endurance of different battery packs, it is often necessary to connect different numbers of battery cells in series and parallel to form a battery cell module to provide the corresponding voltage or current for the load end. During assembly, multiple single battery cells are arranged in sequence (for example, 2×11, 2 groups) and are closely attached to each other, and then end plates are placed on both sides, and the required battery cell module is formed by combining the end plates and side plates.

[0003] In related technologies, in order to reduce the gap between multiple battery cells after the battery cell module is assembled, it is usually necessary to perform extrusion processing on the battery cell module. The extrusion device presses the end plates located at both ends of the battery cell module, so that the multiple single battery cells arranged in sequence between the two end plates are closely attached to each other.

[0004] For the traditional extrusion device that only presses on the end plates at both ends, when it is applied to the extrusion processing of the battery cell module, due to a certain assembly gap between multiple single battery cells, during extrusion, adjacent single battery cells will relatively slide along the height direction during the process of contacting each other, and then the single battery cells in the assembled battery module are not on the same horizontal plane, and the pole columns of the single battery cells are not on the same horizontal plane, which will cause the busbar and the pole column not to be on the same horizontal plane when performing busbar welding on the battery cell module, resulting in virtual welding, internal looseness after welding, and reduction of product yield. Summary of the Utility Model

[0005] In order to solve the deficiencies of the above technologies, the utility model provides a battery cell assembly machine.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is: a battery cell assembly machine, including an installation platform, and a battery cell placement bottom plate is arranged on the tabletop of the installation platform;

[0007] A top pressing end plate is arranged on the front side of the battery cell placement bottom plate, and the top pressing end plate is driven to move by a driving motor;

[0008] A tail pressing end plate is arranged on the rear side of the battery cell placement bottom plate, and the tail pressing end plate is connected with a push-pull quick clamp;

[0009] A left side positioning and fixing block is fixedly arranged on the left side of the battery cell placement bottom plate;

[0010] A right side pressing and fixing block is arranged on the right side of the battery cell placement bottom plate, and the right side pressing and fixing block is connected with a side pressing fixture.

[0011] Preferably, the top pressing end plate is connected to the output end of the driving motor and fixed on the first moving plate. The two ends of the first moving plate are respectively provided with first sliders, and the first sliders are adaptively connected to first guide rails. The first guide rails are installed on the installation platform and distributed on the left and right sides of the battery cell placement bottom plate.

[0012] Preferably, the tail pressing end plate is fixed on the second moving plate. The two ends of the second moving plate are respectively provided with second sliders, and the second sliders are adaptively connected to second guide rails. The second guide rails are installed on the installation platform.

[0013] Preferably, the right pressing fixing block is matched with a guiding block, and the guiding block is fixed on the installation platform.

[0014] Preferably, one or more side pressing jigs are provided.

[0015] Preferably, both the left pressing fixing block and the right pressing fixing block include a baffle and a pressing plate. The pressing plate is located above the baffle, and the width of the pressing plate is greater than that of the baffle to form a notch groove for buckling on the side of the battery cell placement bottom plate.

[0016] The utility model discloses a battery cell assembly machine, which can solve the problem that in the extrusion process of the battery cell module, the single battery cell has longitudinal movement, resulting in the pole columns not being on the same horizontal plane, and further causing low subsequent welding accuracy and product yield. During the stacking and extrusion process of the new type of battery cell, it can maintain flatness in the X / Y / Z three axes, so as to reduce the occurrence probability of missed welding and false welding during the subsequent welding operation, improve production efficiency, and ensure the finished product rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 is Figure 1 the top view of.

[0019] Figure 3 is Figure 1 the structural schematic diagram of the right pressing fixing block or the left pressing fixing block in.

[0020] Figure 4 It is a schematic diagram of the state of the utility model during battery cell assembly.

[0021] In the figure: 1. Battery cell placement bottom plate; 2. Driving motor; 3. Top pressing end plate; 4. Tail pressing end plate; 5. Left positioning and fixing block; 6. Right pressing and fixing block; 7. Push-pull quick clamp; 8. Side pressing fixture; 9. First guide rail; 10. Second guide rail; 11. Installation platform; 12. First moving plate; 13. First slider; 14. Second moving plate; 15. Second slider; 16. Guide block; 17. Baffle; 18. Pressing plate; 19. Notch groove. Detailed implementation mode

[0022] The present utility model will be further described in detail below in conjunction with the accompanying drawings and the detailed implementation mode.

[0023] The present utility model discloses a battery cell assembly machine, and the overall structure is arranged as Figure 1 and as Figure 2 shown, and the main structure includes: installation platform 11, battery cell placement bottom plate 1, driving motor 2, top pressing end plate 3, tail pressing end plate 4, left positioning and fixing block 5, right pressing and fixing block 6, first guide rail 9, second guide rail 10;

[0024] Among them, the installation platform 11 is a welded part, providing a site for the setting of other components; at the same time, the installation platform needs to ensure the horizontal reference to ensure the stability of the subsequent installation accessories on the X-axis.

[0025] The battery cell placement bottom plate 1 is a plate structure locked and installed on the installation platform 11, which limits the placement position of the battery cells when they are stacked and pressed. And, based on the battery cell placement bottom plate 1, a top pressing end plate 3 is arranged on its front side, a tail pressing end plate 4 is arranged on the rear side, a left positioning and fixing block 5 is arranged on the left side, and a right pressing and fixing block 6 is arranged on the right side;

[0026] The top pressing end plate 3 is driven to move by the driving motor 2, and the output end of the driving motor 2 is connected to the top pressing end plate 3. And, in order to enable the top pressing end plate 3 to move smoothly, the top pressing end plate 3 is fixed on the first moving plate 12, and the first sliders 13 are respectively arranged at both ends of the first moving plate 12, and the first sliders 13 are adaptively connected to the first guide rail 9, and the first guide rail 9 is installed on the installation platform 11 and distributed on the left and right sides of the battery cell placement bottom plate 1.

[0027] The tail pressing end plate 4 is connected with a push-pull quick clamp 7, and is pushed and pulled by the push-pull quick clamp 7 to realize the clamping function; similarly, in order to enable the tail pressing end plate 4 to move smoothly, the tail pressing end plate 4 is fixed on the second moving plate 14, and the second sliders 15 are respectively arranged at both ends of the second moving plate 14, and the second sliders 15 are adaptively connected to the second guide rail 10, and the second guide rail 10 is installed on the installation platform 11.

[0028] Thus, when the motor drive 2 is started, through the action of force, the top pressing end plate 3 runs on the first guide rail 9, a horizontal force is applied in the X-axis direction, the operator uses the push-pull type quick clamp 7, and the tail pressing end plate 4 runs in the reverse direction on the second guide rail 10. The end plates on the front and rear sides cooperate with each other to stack and press in the X-axis direction.

[0029] The left positioning and fixing block 5 is a positioning block, and the right pressing and fixing block 6 is used in cooperation with the side pressing fixture 9. The side pressing fixture 9 also adopts the form of a quick fixture. After operating the side pressing fixture 9, the right pressing and fixing block 6 is pushed to clamp, so that the battery cells in the Y-axis direction are also in the same direction. Preferably, one or more side pressing fixtures 8 are provided. The right pressing and fixing block 6 is matched with a guide block 16, and the guide block 16 is fixed on the mounting platform 11 so that the right pressing and fixing block 6 can move under the guidance of the guide block 16.

[0030] As Figure 3 shown, both the left pressing and fixing block 5 and the right pressing and fixing block 6 include a baffle 17 and a pressing plate 18. The pressing plate 18 is located above the baffle 17, and the width of the pressing plate 18 is greater than the width of the baffle 17 to form a notch groove 20 for buckling on the side of the battery cell placement bottom plate 1. Thus, the baffle 17 abuts against the battery cell placement bottom plate 1, and the protruding pressing plate 18 presses the battery cells in the Y-axis direction.

[0031] In addition, mounting holes for component installation are provided on the mounting platform 11, and all the mounting holes are machined integrally to ensure the accuracy of the subsequent mounting positions.

[0032] In summary, the use process of the battery cell assembly machine disclosed in the present utility model is as follows: As Figure 4 shown, place the 2×11 battery cells on the battery cell placement bottom plate 1 in sequence, start the drive motor 2, through the action of force, the top pressing end plate 3 runs on the first guide rail 9, a horizontal force is applied in the X-axis direction, then operate the push-pull type quick clamp 7 to make the tail pressing end plate 4 run in the reverse direction on the second guide rail 10 and clamp the battery cells to achieve stacking and pressing in the X-axis direction; operate the side pressing fixture 8, the right pressing and fixing plate 6 applies force in the Y-axis direction, and the left positioning and fixing block 5 and the right pressing and fixing block 6 cooperate to achieve stacking and pressing in the X-axis direction; thus, the battery cell modules are in the same plane in the planar direction, and the height of the battery cell poles is unified to ensure the flatness of the mounting platform 11, so that the situation of missed welding and false welding will not occur during the subsequent welding process, and the qualified rate of the battery cell modules is improved. After completing the stacking and extrusion of the battery cell modules, robot welding is carried out.

[0033] The above embodiments are not limitations to the present utility model, nor is the present utility model limited to the above examples. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model also fall within the protection scope of the present utility model.

Claims

1. A battery cell assembly machine, comprising an installation platform (11), characterized in that: A battery cell placement bottom plate (1) is arranged on the tabletop of the installation platform (11). A top pressing end plate (3) is arranged on the front side of the battery cell placement bottom plate (1), and the top pressing end plate (3) is driven to move by a driving motor (2). A tail pressing end plate (4) is arranged on the rear side of the battery cell placement bottom plate (1), and the tail pressing end plate (4) is connected with a push-pull quick clamp (7). A left side positioning and fixing block (5) is fixedly arranged on the left side of the battery cell placement bottom plate (1). A right side pressing and fixing block (6) is arranged on the right side of the battery cell placement bottom plate (1), and the right side pressing and fixing block (6) is connected with a side pressing fixture (8).

2. The cell assembly machine according to claim 1, wherein: The top pressing end plate (3) is connected to the output end of the driving motor (2) and fixed on a first moving plate (12). Both ends of the first moving plate (12) are respectively provided with first sliders (13), and the first sliders (13) are adaptively connected with first guide rails (9). The first guide rails (9) are installed on the installation platform (11) and distributed on the left and right sides of the battery cell placement bottom plate (1).

3. The cell assembly machine according to claim 1, wherein: The tail pressing end plate (4) is fixed on a second moving plate (14). Both ends of the second moving plate (14) are respectively provided with second sliders (15), and the second sliders (15) are adaptively connected with second guide rails (10). The second guide rails (10) are installed on the installation platform (11).

4. The battery cell assembly machine according to claim 1, characterized in that: The right side pressing and fixing block (6) is matched with a guide block (16), and the guide block (16) is fixed on the installation platform (11).

5. The cell assembly machine according to claim 4, wherein: One or more side pressing fixtures (8) are provided.

6. The cell assembly machine according to claim 4, wherein: Both the left side pressing and fixing block (5) and the right side pressing and fixing block (6) include a baffle (17) and a pressing plate (18). The pressing plate (18) is located above the baffle (17), and the width of the pressing plate (18) is greater than the width of the baffle (17) to form a notch groove (20) for buckling on the side of the battery cell placement bottom plate (1).

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