A battery aluminum shell stamping die

Abstract

This utility model belongs to the field of battery aluminum shell stamping technology, specifically relating to a battery aluminum shell stamping forming mold, including a mold body, a lower mold mounted on the top of the mold body, a stamping groove in the middle of the lower mold, an upper mold fixed on one side of the top of the mold body, a stamping rod mounted on the bottom of the upper mold and above the stamping groove, a stamping plate fixed on the outside of the stamping rod, and the outer diameter of the stamping plate being the same as the inner diameter of the stamping groove, two limiting blocks are provided on the top of the lower mold and on both sides of the stamping groove, with the two limiting blocks on the same side respectively located at both ends of the stamping groove, and an adjustment structure is installed on the top of the lower mold. This utility model can dynamically adjust the position of the limiting blocks, remove the limiting blocks when placing the workpiece, reducing the difficulty of operation and shortening the auxiliary time, reset them during stamping to ensure positioning accuracy, and remove them again when unloading, eliminating the need for tool-assisted unloading, improving production efficiency, and also avoiding workpiece edge deformation and burr generation caused by external force during unloading.

Description

Technical Field

[0001] This utility model belongs to the field of battery aluminum shell stamping technology, specifically relating to a battery aluminum shell stamping forming mold. Background Technology

[0002] In the field of lithium battery manufacturing, the aluminum battery shell is a core packaging component, and its forming accuracy directly affects the sealing performance and structural stability of the battery. Stamping is a key process for the mass production of aluminum battery shells, and the rational design of the mold plays a decisive role in production efficiency and product qualification rate. In order to avoid workpiece displacement during the stamping process, the bottom mold of the existing aluminum battery shell stamping mold is generally equipped with a limit block structure. By limiting the edge of the workpiece with the limit block, the workpiece is accurately positioned on the bottom mold, ensuring the dimensional accuracy of stamping. This design has become a standard technical solution in the industry.

[0003] However, most of the limiting blocks in the existing technology adopt a fixed installation method, such as being directly fastened to the bottom mold or the die body by bolts. Although this fixed structure can meet the basic positioning requirements, it has obvious defects in the actual production process. During the workpiece placement stage, the fixed limiting block will form a spatial obstruction, which requires the operator to accurately align the limiting gap before placing the workpiece. This not only increases the difficulty of operation, but also prolongs the auxiliary time of a single processing. After stamping, the workpiece may come into contact with the bottom mold or the limiting block due to stamping stress, or even become slightly stuck. The fixed limiting block will hinder the quick removal of the workpiece, requiring the use of additional tools to assist in unloading. This not only reduces production efficiency, but may also cause the workpiece edge to deform or produce burrs due to the external force during the unloading process, affecting product quality.

[0004] Therefore, there is an urgent need for a battery aluminum shell stamping die structure that can solve the above-mentioned technical defects, realize dynamic adjustment of the position of the limit block, and take into account both positioning accuracy and material handling convenience, so as to meet the actual production needs of the industry. Utility Model Content

[0005] The purpose of this utility model is to provide a battery aluminum shell stamping die that can dynamically adjust the position of the limiting block, remove the limiting block when placing the workpiece, reduce the difficulty of operation and shorten the auxiliary time, reset during stamping to ensure positioning accuracy, and remove it again when unloading the material, eliminating the need for tool-assisted unloading, improving production efficiency, and avoiding workpiece edge deformation and burr generation caused by external force during material handling.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A battery aluminum shell stamping die includes a die body, a lower die mounted on the top of the die body, a stamping groove provided in the middle of the lower die, an upper die fixed on one side of the top of the die body, a stamping rod mounted on the bottom of the upper die and at the top of the stamping groove, a stamping plate fixed on the outside of the stamping rod, and the outer diameter of the stamping plate being the same as the inner diameter of the stamping groove.

[0008] Two limiting blocks are provided on the top of the lower die and on both sides of the stamping groove, and the two limiting blocks on the same side are respectively located at both ends of the stamping groove. An adjustment structure is installed on the top of the lower die.

[0009] The adjustment structure includes multiple slide grooves, all of which are located on the top of the lower mold. The slide grooves are respectively located on the outside of the multiple limiting blocks. Each slide groove is rotatably connected with a threaded rod, and two threaded rods at the same end are fixedly connected by a connecting rod. The two threaded rods at the same end have opposite thread directions. A drive structure is installed on the top of the lower mold.

[0010] The drive structure includes a transmission rod rotatably connected to the top of the lower mold. Two driving bevel gears are fixed to the outside of the transmission rod, and a driven bevel gear is fixed to one end of one of the threaded rods at the same end. The two driven bevel gears are respectively meshed with the two driving bevel gears. A motor is installed on the top of the lower mold, and the output end of the motor is connected to the end of the transmission rod.

[0011] A locking block is fixed to the outside of the stamping rod and at the bottom of the stamping plate.

[0012] Each of the limiting blocks has an abutment strip fixed on the side near the stamping groove, and the end of the abutment strip away from the limiting block is positioned near the stamping groove.

[0013] The card block is made of a flexible material, and the material of the card block is rubber.

[0014] A spring sheet is fixed to the bottom of the abutment strip away from the end of the limiting block, and a sliding piece is installed at the bottom of the spring sheet.

[0015] The technical effects achieved by this utility model are as follows:

[0016] This utility model, through the setting of multiple threaded rods, can synchronously adjust the distance between the limit blocks at both ends, thereby dynamically adjusting the position of the limit blocks. When placing the workpiece, the limit blocks are moved away, reducing the difficulty of operation and shortening the auxiliary time. During stamping, the limit blocks are reset to ensure positioning accuracy. When unloading the material, the limit blocks are moved away again, eliminating the need for tools to assist in unloading the material, improving production efficiency, and also avoiding the deformation of the workpiece edge and the generation of burrs caused by external force during material unloading. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure between the card block, the lower die, and the stamping rod in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure between the abutment strip, the limiting block, and the sliding groove in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure between the motor, the limiting block, and the threaded rod in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure between the abutment strip, the spring piece, and the sliding piece in this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Mold body; 2. Upper mold; 3. Lower mold; 4. Stamping rod; 5. Stamping plate; 6. Connecting rod; 7. Threaded rod; 8. Limiting block; 9. Transmission rod; 10. Driving bevel gear; 11. Driven bevel gear; 12. Motor; 13. Slide groove; 14. Workpiece body; 15. Clamping block; 16. Abutment bar; 17. Spring piece; 18. Sliding piece; 19. Stamping groove. Detailed Implementation

[0024] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0025] like Figures 1-5 As shown, a battery aluminum shell stamping die includes a die body 1, a lower die 3 is installed on the top of the die body 1, a stamping groove 19 is provided in the middle of the lower die 3, an upper die 2 is fixed on one side of the top of the die body 1, a stamping rod 4 is installed at the bottom of the upper die 2 and at the top of the stamping groove 19, a stamping plate 5 is fixed on the outside of the stamping rod 4, and the outer diameter of the stamping plate 5 is the same as the inner diameter of the stamping groove 19. A driving component is installed in the upper die 2. The driving component can be a hydraulic cylinder or other components. The stroke rod of the driving component is connected to the stamping rod 4. When the driving component is driven, it can drive the stamping rod 4 to move downward.

[0026] Two limiting blocks 8 are provided on the top of the lower die 3 and on both sides of the stamping groove 19, and the two limiting blocks 8 on the same side are respectively provided at both ends of the stamping groove 19.

[0027] When it is necessary to stamp the aluminum shell of the battery, the workpiece body 14 is placed on the top of the lower die 3 and the workpiece body 14 is limited by four limit blocks 8, so that the workpiece body 14 can be stably installed on the lower die 3. When stamping the workpiece body 14, the driving component drives the stamping rod 4 and the stamping plate 5 to move down, and the workpiece body 14 is squeezed through the stamping groove 19, so that the workpiece body 14 is deformed into a U-shaped part, thus completing the stamping of the workpiece body 14.

[0028] An adjustment structure is installed on the top of the lower mold 3.

[0029] See attached document Figures 3-4 The adjustment structure includes multiple slide grooves 13, and all slide grooves 13 are set on the top of the lower mold 3. The multiple slide grooves 13 are respectively set on the outside of multiple limit blocks 8. Threaded rods 7 are rotatably connected in the multiple slide grooves 13, and two threaded rods 7 at the same end are fixedly connected by a connecting rod 6. The threads of the two threaded rods 7 at the same end are opposite. A drive structure is installed on the top of the lower mold 3.

[0030] The drive structure controls the rotation of one of the threaded rods 7 at the same end, and the connecting rod 6 enables the two threaded rods 7 at the same end to rotate synchronously. When the threaded rod 7 rotates, it can be connected to the limit block 8 by the threaded connection between the threaded rod 7 and the limit block 8 by the limit of the slide groove 13. The limit block 8 can slide in the slide groove 13. The two limit blocks 8 at the same end move closer or further away from each other because the threads of the two threaded rods 7 at the same end have opposite directions.

[0031] When placing the workpiece body 14, the two limit blocks 8 at the same end can be driven to move away from each other, thereby placing the workpiece body 14. After placement, the two limit blocks 8 at the same end are driven to move closer to each other to position the workpiece body 14. After the workpiece body 14 is stamped, the two limit blocks 8 at the same end are controlled to move away from each other again. This setting makes it convenient for users to place and remove the workpiece body 14, and can be adapted to different models of workpiece body 14, thus enabling the stamping of various models of workpiece body 14.

[0032] See attached document Figures 3-4 The drive structure includes a transmission rod 9 rotatably connected to the top of the lower mold 3. Two driving bevel gears 10 are fixed on the outside of the transmission rod 9, and a driven bevel gear 11 is fixed to one end of one of the threaded rods 7 at the same end. The two driven bevel gears 11 are respectively meshed with the two driving bevel gears 10. A motor 12 is installed on the top of the lower mold 3, and the output end of the motor 12 is connected to the end of the transmission rod 9.

[0033] When the motor 12 is driven, it can drive the transmission rod 9 to rotate and drive the active bevel gear 10 to rotate. Through the meshing connection between the two active bevel gears 10 and the two driven bevel gears 11, it can drive the two driven bevel gears 11 to rotate synchronously, and drive the two threaded rods 7 at the same end and the two threaded rods 7 at the other end to rotate synchronously, thereby realizing that the two limit blocks 8 at the same end move closer or further away from each other synchronously.

[0034] See attached document Figure 2 A locking block 15 is fixed to the outside of the stamping rod 4 and at the bottom of the stamping plate 5. The locking block 15 allows it to be inserted into a hole inside the workpiece body 14. The locking block 15 is made of a flexible material, such as rubber or silicone. When the locking block 15 contacts the hole inside the workpiece body 14, its material allows it to deform and move to the bottom of the workpiece body 14. After stamping the workpiece body 14, it can be hung on top of the locking block 15, preventing it from falling out of the stamping groove 19. (See attached diagram.) Figure 5 Each limiting block 8 has an abutment strip 16 fixed on the side near the stamping groove 19, and the end of the abutment strip 16 away from the limiting block 8 is positioned near the stamping groove 19. A spring piece 17 is fixed to the bottom of the end of the abutment strip 16 away from the limiting block 8, and a sliding piece 18 is installed at the bottom of the spring piece 17. The spring piece 17 is inclined towards the stamping groove 19, and the sliding piece 18 is at the top of the stamping groove 19 and maintains a certain distance from the stamping groove 19. When the locking block 15 moves down, the sliding piece 18 is impacted, which drives the spring piece 17 and the sliding piece 18. The piece 18 swings away from the stamping groove 19, which will not block the downward impact force of the stamping plate 5. When the stamping plate 5 has finished moving down, the spring piece 17 and the sliding piece 18 are reset. At this time, the stamping plate 5 is lifted up, and the sliding piece 18 and the spring piece 17 will swing. When they come into contact with the workpiece body 14, they can generate a resisting force on the workpiece. Because the contact force between the workpiece and the locking block 15 is not very stable, the workpiece body 14 can be easily removed from the locking block 15 by the locking of the sliding piece 18, which makes it convenient for the user to collect the workpiece body 14.

[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A battery aluminum shell stamping die, comprising a die body (1), characterized in that: The mold body (1) is equipped with a lower mold (3) on its top. The lower mold (3) is provided with a stamping groove (19) in the middle. The mold body (1) is fixed with an upper mold (2) on one side of its top. The upper mold (2) is equipped with a stamping rod (4) at its bottom and at the top of the stamping groove (19). The stamping rod (4) is fixed with a stamping plate (5) on its outer side. The outer diameter of the stamping plate (5) is the same as the inner diameter of the stamping groove (19). Two limiting blocks (8) are provided on the top of the lower die (3) and on both sides of the stamping groove (19), and the two limiting blocks (8) on the same side are respectively provided at both ends of the stamping groove (19). An adjustment structure is installed on the top of the lower die (3).

2. The battery aluminum shell stamping die according to claim 1, characterized in that: The adjustment structure includes multiple slide grooves (13), and the multiple slide grooves (13) are all located on the top of the lower mold (3). The multiple slide grooves (13) are respectively located on the outside of the multiple limiting blocks (8). Threaded rods (7) are rotatably connected in the multiple slide grooves (13), and two threaded rods (7) at the same end are fixedly connected by a connecting rod (6). The threads of the two threaded rods (7) at the same end are opposite. A drive structure is installed on the top of the lower mold (3).

3. The battery aluminum shell stamping die according to claim 2, characterized in that: The drive structure includes a transmission rod (9) rotatably connected to the top of the lower mold (3). Two active bevel gears (10) are fixed on the outside of the transmission rod (9), and one end of one of the threaded rods (7) at the same end is fixed with a driven bevel gear (11). The two driven bevel gears (11) are respectively meshed with the two active bevel gears (10). A motor (12) is installed on the top of the lower mold (3), and the output end of the motor (12) is connected to the end of the transmission rod (9).

4. The battery aluminum shell stamping die according to claim 1, characterized in that: A locking block (15) is fixed to the outside of the stamping rod (4) and at the bottom of the stamping plate (5).

5. The battery aluminum shell stamping die according to claim 4, characterized in that: Each of the limiting blocks (8) has an abutment strip (16) fixed on the side near the stamping groove (19), and the end of the abutment strip (16) away from the limiting block (8) is set near the stamping groove (19).

6. The battery aluminum shell stamping die according to claim 4, characterized in that: The card block (15) is made of flexible material, and the material of the card block (15) is rubber.

7. The battery aluminum shell stamping die according to claim 5, characterized in that: A spring piece (17) is fixed at the bottom of the end of the abutment strip (16) away from the limit block (8), and a sliding piece (18) is installed at the bottom of the spring piece (17).

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