Battery aluminum bar stamping die

Abstract

The utility model discloses a battery aluminum bar stamping die, which relates to the technical field of battery aluminum bar production and comprises a lower die holder and an upper die holder, a seat plate is embedded and fixed at the top of the lower die holder, a clamping plate is rotatably connected inside the seat plate through a shaft lever, and a spring is arranged between the bottom of the clamping plate and the seat plate; a pressing plate is arranged at the bottom of the upper die base, an upper slope is arranged at the bottom end of the pressing plate, a lower slope matched with the upper slope is arranged at the top end of the clamping plate, and the pressing plate drives the clamping plate to rotate with the shaft rod as the center through slope matching when pressed downwards, so that the upper portion of the clamping plate clamps and fixes the battery aluminum bar material belt. According to the battery aluminum bar stamping die, dynamic self-adaptive clamping is achieved through a slope linkage structure of the pressing plate and the clamping plate, zero-displacement fixing of a battery aluminum bar material belt is automatically completed at the stamping moment, the forming defect caused by sliding or deviation of the material belt of a traditional die is thoroughly eliminated, and the size precision and the edge quality of an aluminum bar piece are remarkably improved; and meanwhile, manual intervention is reduced through an automatic clamping and resetting mechanism, and the continuous punching efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of battery aluminum bar production technology, specifically a battery aluminum bar stamping die. Background Technology

[0002] In the production of battery aluminum foil, stamping is the core process for manufacturing battery aluminum foil sheets. Traditional stamping dies suffer from technical defects such as unstable strip fixation and insufficient positioning accuracy, leading to easy slippage or displacement of the strip during stamping, which seriously affects the forming accuracy and consistency of the aluminum foil sheets. For example, some dies use manual clamping or unilateral fixing, requiring manual adjustment of the strip position, which is not only inefficient but also difficult to adapt to the demands of high-speed continuous stamping. Other dies, although equipped with fixed clamping mechanisms, lack dynamic adaptability, and the strip may still experience slight displacement due to impact forces during stamping, resulting in problems such as burrs on the product edges and dimensional deviations. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a battery aluminum bar stamping die, which solves the problems mentioned in the background.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a battery aluminum bar stamping die, comprising a lower die base and an upper die base. A U-shaped base plate is embedded and fixed in the top of the lower die base. A clamping plate is rotatably connected inside the base plate via a shaft. A spring is provided between the bottom of the clamping plate and the base plate. A pressure plate is provided at the bottom of the upper die base. An upper inclined surface is provided at the bottom end of the pressure plate. A lower inclined surface adapted to the upper inclined surface is provided at the top end of the clamping plate. When the pressure plate presses down, the clamping plate is driven to rotate around the shaft via the inclined surface, so that the upper part of the clamping plate clamps and fixes the battery aluminum bar strip.

[0005] Furthermore, the top of the lower mold base is provided with several symmetrically distributed grooves, and the base plate, clamping plate, shaft and spring are all built into the grooves. Limiting holes are opened at the bottom of the adjacent end faces of the base plate and clamping plate, and the two ends of the spring abut against the limiting holes to constrain the contraction direction of the spring during the rotation of the clamping plate.

[0006] Furthermore, the bottom end of the upper mold base is provided with several punches and a stamping base plate. The bottom end of the punches penetrates through the stamping base plate and protrudes from the bottom surface. The pressure plate is fixed inside the stamping base plate and its bottom end protrudes from the bottom surface. When the pressure plate is pressed down, it slides in contact with the lower inclined surface of the clamping plate through the upper inclined surface.

[0007] Furthermore, a stop groove is provided on the side of the clamping plate. When the pressure plate is pressed down to the lowest position, the upper inclined surface abuts against the stop groove. At this time, the top of the clamping plate is precisely aligned with the edge of the battery aluminum strip and forms a clamping constraint.

[0008] Furthermore, the depth of the groove is adapted to the height of the base plate, and the base plate is fixed to the top of the lower mold base by an embedded method.

[0009] Furthermore, the bottom surface of the stamping base plate and the top surface of the lower die holder form a closed space when the die is closed, and the protrusion height of the punch matches the stamping depth of the battery aluminum strip.

[0010] This utility model provides a stamping die for aluminum batteries. Compared with the prior art, it has the following advantages:

[0011] This battery aluminum bar stamping die achieves dynamic adaptive clamping through the inclined linkage structure of the pressure plate and clamping plate. It automatically completes zero displacement fixation of the battery aluminum bar strip at the moment of stamping, completely eliminating the forming defects caused by the slippage or offset of the strip in traditional dies, significantly improving the dimensional accuracy and edge quality of the aluminum bar sheet. At the same time, the automated clamping and reset mechanism reduces manual intervention and greatly improves the efficiency of continuous stamping. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the disassembled structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the upper mold base in this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the lower mold base in this utility model;

[0015] Figure 4 This is a schematic diagram of the structure of the clamping plate and pressure plate in this utility model;

[0016] Figure 5 This is a cross-sectional view of the assembled version of this utility model.

[0017] In the diagram: 1. Lower die base; 11. Groove; 2. Upper die base; 3. Seat plate; 4. Clamping plate; 41. Limiting hole; 42. Lower inclined surface; 43. Stop groove; 5. Shaft; 6. Spring; 7. Punch; 8. Stamping base plate; 9. Pressure plate; 91. Upper inclined surface; 10. Battery aluminum strip. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1-5, the present utility model provides a technical solution: a stamping die for battery aluminum bars, including a lower die base 1 and an upper die base 2. A seat plate 3 is fixedly embedded at the top of the lower die base 1. Inside the seat plate 3, a clamping plate 4 is rotatably connected by a shaft rod 5. A spring 6 is commonly connected between the bottom of the clamping plate 4 and the seat plate 3. The bottom of the upper die base 2 is connected with a pressing plate 9. The bottom end of the pressing plate 9 is provided with an upper inclined surface 91, and the top end of the clamping plate 4 is provided with a lower inclined surface 42 adapted to the upper inclined surface 91. When the pressing plate 9 presses down the clamping plate 4, through the upper inclined surface 91 and the lower inclined surface 42, the clamping plate 4 can rotate around the shaft rod 5 inside the seat plate 3, so that the upper part of the clamping plate 4 finally clamps and fixes the battery aluminum bar strip.

[0020] A number of symmetrically distributed grooves 11 are reserved and opened at the top end of the lower die base 1. The seat plate 3, the clamping plate 4, the shaft rod 5, and the spring 6 are all arranged inside the grooves 11. The seat plate 3 is arranged in a "U" - shaped structure;

[0021] A number of limiting holes 41 are opened at the bottom of the adjacent end faces of the seat plate 3 and the clamping plate 4. The two ends of the spring 6 abut against the inside of the limiting holes 41, so that during the rotation of the clamping plate 4, the spring 6 can be squeezed to contract, and the spring 6 is limited and constrained during the contraction process;

[0022] The bottom end of the upper die base 2 is respectively connected with a number of punch heads 7 and a stamping bottom plate 8. The bottom ends of the number of punch heads 7 all penetrate through the stamping bottom plate 8 and protrude from the bottom surface of the stamping bottom plate 8. The pressing plate 9 is fixed inside the stamping bottom plate 8, and the bottom end of the pressing plate 9 also protrudes from the bottom surface of the stamping bottom plate 8;

[0023] A stop groove 43 is reserved and opened on the side of the clamping plate 4. When the pressing plate 9 is pressed down to the lowest position, the upper inclined surface 91 abuts against the stop groove 43. At this time, the top of the clamping plate 4 just abuts against the edge of the battery aluminum bar strip, forming a clamping constraint structure;

[0024] When this stamping die is in use, the battery aluminum bar strip 10 is located between the upper die base 2 and the stamping bottom plate 8. The stamping equipment drives the overall downward movement of the upper die base 2, the punch heads 7, the stamping bottom plate 8, and the pressing plate 9. During the downward movement of the symmetrically arranged pressing plates 9 on both sides, they may contact the clamping plates 4 at the bottom position. When the upper inclined surface 91 abuts against the lower inclined surface 42, because both of them are adapted inclined surface structures, as the pressing plate 9 continuously moves downward, it will squeeze the clamping plate 4 to rotate clockwise around the shaft rod 5. Figure 5Taking the perspective of the case as an example, the top of the clamping plate 4 will deflect toward the edge of the battery aluminum strip 10. When the upper inclined surface 91 abuts against the stop groove 43, the top of the clamping plate 4 just clamps the battery aluminum strip 10. And because the clamping plate 4 is deflected clockwise, the bottom of the clamping plate 4 will squeeze the spring 6, causing the spring 6 to contract. At the same time, the punch 7 applies a stamping force to the battery aluminum strip 10, stamping out the battery aluminum sheet on the battery aluminum strip 10.

[0025] After stamping, the stamping equipment drives the upper die holder 2, punch 7, stamping base plate 8, and pressure plate 9 to move upward as a whole. Similarly, the upper inclined surface 91 disengages from the stop groove 43 and continues to move upward. During this process, because the spring 6 will return to its original position, the clamping plate 4 gradually deflects counterclockwise until the height of the upper inclined surface 91 is higher than the height of the limiting hole 41. Then, the clamping plate 4 returns to a vertical state, thus releasing the clamping constraint on the battery aluminum strip 10. Through external pulling equipment, the battery aluminum strip 10 is pulled to move a small distance to prepare for the next stamping. The above operation is repeated.

Claims

1. A battery aluminum tab stamping die comprising a lower die shoe (1) and an upper die shoe (2), characterized in that, The top of the lower die base (1) is fixedly embedded with a "U"-shaped seat plate (3). Inside the seat plate (3), a clamping plate (4) is rotatably connected by a shaft rod (5). A spring (6) is provided between the bottom of the clamping plate (4) and the seat plate (3). The bottom of the upper die base (2) is provided with a pressing plate (9). The bottom end of the pressing plate (9) is provided with an upper inclined surface (91). The top end of the clamping plate (4) is provided with a lower inclined surface (42) adapted to the upper inclined surface (91). When the pressing plate (9) is pressed down, the clamping plate (4) is driven to rotate around the shaft rod (5) through the inclined surface cooperation, so that the upper part of the clamping plate (4) forms clamping and fixing on the battery aluminum bus bar strip.

2. The battery aluminum tab stamping die of claim 1, wherein, The top end of the lower die base (1) is provided with a plurality of symmetrically distributed grooves (11). The seat plate (3), the clamping plate (4), the shaft rod (5) and the spring (6) are all placed inside the grooves (11). A limiting hole (41) is opened at the bottom of the adjacent end faces of the seat plate (3) and the clamping plate (4). The two ends of the spring (6) are abutted in the limiting hole (41) to constrain the contraction direction of the spring (6) during the rotation of the clamping plate (4).

3. The battery aluminum can punch press die of claim 1, wherein, The bottom end of the upper die base (2) is provided with a plurality of punch heads (7) and a punching bottom plate (8). The bottom end of the punch head (7) penetrates through the punching bottom plate (8) and protrudes from the bottom surface. The pressing plate (9) is fixed inside the punching bottom plate (8) and its bottom end protrudes from the bottom surface. When the pressing plate (9) is pressed down, it makes sliding contact with the lower inclined surface (42) of the clamping plate (4) through the upper inclined surface (91).

4. The battery aluminum can punch press die of claim 1, wherein, A stop groove (43) is opened on the side of the clamping plate (4). When the pressing plate (9) is pressed down to the lowest position, the upper inclined surface (91) abuts against the stop groove (43). At this time, the top of the clamping plate (4) is precisely aligned with the edge of the battery aluminum bus bar strip and forms clamping restraint.

5. The battery aluminum can punch press die of claim 2, wherein, The depth of the groove (11) is adapted to the height of the seat plate (3). The seat plate (3) is fixedly installed on the top of the lower die base (1) by an embedded method.

6. The battery aluminum can punch press die of claim 3, wherein, The bottom surface of the punching bottom plate (8) and the top surface of the lower die base (1) form a closed space when the die is closed. The protruding height of the punch head (7) matches the punching depth of the battery aluminum bus bar strip.

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