A mechanism for bending a tab of an aluminum battery into a shell and a packaging system comprising the same

Abstract

The utility model provides a kind of aluminum shell battery connecting piece bending into shell mechanism and the packaging system comprising it, solve the mode of existing upper and lower folding knife same position drive, cannot guarantee the consistency of connecting piece bending problem, its main scheme includes bending platform, clamping fixed with battery on bending platform, and keep the exposed setting of the current collector one end of battery, current collector outside is welded with battery shell by connecting piece, bending platform is also fixed with upper bending mechanism and lower bending mechanism on the outside of the current collector one end of corresponding battery, lower bending mechanism includes the first pressing plate of pneumatic lifting, after the first pressing plate pneumatic jacking, with the bottom of current collector resistance support, upper bending mechanism includes double-shaft movement module, fixed plate, clamping component and the second pressing plate of pneumatic lifting, double-shaft movement module is used to drive fixed plate displacement in the one end relative to current collector, clamping component is fixed with fixed plate, to pneumatic clamping battery shell both ends, after the second pressing plate pneumatic depression, to connect piece top surface bending.

Description

Technical Field

[0001] This utility model relates to the field of aluminum-cased battery packaging technology, and in particular to an aluminum-cased battery connecting piece bending and inserting mechanism and a packaging system including the same. Background Technology

[0002] In the production process of aluminum-cased batteries, after the connecting piece is welded to the cover plate, the connecting piece needs to be bent, then the cover plate is inserted into the casing, and then the cover plate is welded to the casing.

[0003] In existing automated equipment, the servo module operates by driving the folding blades (pressure plates) above and below the connecting piece in the same position. That is, the positions of the bottom support position and the top pressing position of the connecting piece are fixed and cannot be adjusted. After the module moves and positions itself in the direction of the battery, the upper and lower folding blades bend the connecting piece together, and then the cover plate is snapped into the housing. This method cannot guarantee the consistency of the bending of the connecting piece. The positive current collector may come into contact with the negative electrode, causing the battery to short circuit.

[0004] To address these issues, we propose an aluminum-cased battery connector bending mechanism and a packaging system containing it. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the existing technology. This utility model proposes an aluminum-cased battery connecting piece bending and inserting mechanism and a packaging system containing it. Through the split operation of the upper and lower parts, that is, the bottom is positioned and supported, and the top folding blade is used for downward bending and the lateral displacement required for bending, the consistency of the connecting piece bending is ensured, the battery short circuit rate is reduced, and the battery quality is guaranteed.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an aluminum-cased battery connecting piece bending and inserting mechanism, including a bending platform, on which a battery is clamped and fixed, with one end of the battery current collector exposed. The outside of the current collector is welded to the battery casing through a connecting piece. The bending platform is also fixed with an upper bending mechanism and a lower bending mechanism on the outside of the current collector end of the corresponding battery. The lower bending mechanism includes a pneumatically lifting first pressure plate, which is pneumatically lifted and supports the bottom of the current collector. The upper bending mechanism includes a dual-axis motion module, a fixed plate, a clamping assembly, and a pneumatically lifting second pressure plate. The dual-axis motion module is used to drive the fixed plate to move at one end relative to the current collector. The clamping assembly is fixed to the fixed plate to pneumatically clamp both ends of the battery casing. The second pressure plate is pneumatically pressed down to bend the top surface of the connecting piece.

[0007] Furthermore, the dual-axis motion module includes a first bracket, a first motor, a first slide rail, a first nut seat, a second motor, a second slide rail, and a second nut seat. The first slide rail is fixed to the top of the first bracket, and a first lead screw is rotatably connected to both ends of the first slide rail. The track direction of the first slide rail is in the same direction as the horizontal placement direction of the battery. The center of the first nut seat is threadedly engaged with the first lead screw, and its top is slidably connected to the top of the first slide rail. The first motor servo drives the first lead screw to rotate. The second slide rail is vertically fixed to the top of the first nut seat, and its track direction is perpendicular to the top surface of the battery. A second lead screw is rotatably connected to the upper and lower ends of the second slide rail. The center of the second nut seat is threadedly engaged with the second lead screw, and its top surface is bolted to the fixing plate.

[0008] Furthermore, the clamping assembly includes a cylinder mounting bracket and at least two clamping cylinders. The cylinder mounting bracket is fixed to the side of the mounting plate opposite to the battery. The two clamping cylinders are symmetrically fixed to the top of the cylinder mounting bracket. The output direction of the clamping cylinders corresponds to the horizontal placement direction of the battery. The battery casing is placed vertically to be embedded in the pneumatic fingers of the two clamping cylinders.

[0009] Furthermore, a positioning frame is fixed to the top of the fixing plate. The positioning frame is mounted on the top of the clamping assembly. On the side of the positioning frame opposite to the battery, an upper pressure cylinder, a first guide rail, and a first linkage plate are also fixed. The track direction of the first guide rail is perpendicular to the top surface of the battery. The back of the first linkage plate is slidably connected to the first guide rail, and its top is fixedly connected to the output end of the upper pressure cylinder. The bottom of the first linkage plate is recessed to fix the second pressure plate with bolts.

[0010] Furthermore, a partition is fixed to the back of the positioning frame, and the partition is located between the two clamping cylinders.

[0011] Furthermore, the width of the second pressure plate corresponds to the width of the connecting piece.

[0012] Furthermore, the bottom of the second pressure plate has a first flange protruding from it.

[0013] Furthermore, the bending mechanism also includes a second bracket, a pressing cylinder, a second guide rail, and a second linkage plate. The second guide rail is fixed to the top of the second bracket, and its track direction is perpendicular to the top surface of the battery. The pressing cylinder is connected and fixed to the second bracket, and its output end is connected and fixed to the second linkage plate. The second linkage plate is slidably connected to the second guide rail, and its top is bolted to the first pressure plate.

[0014] Furthermore, the top of the first pressure plate has a second flange protruding from it.

[0015] An encapsulation system comprising the aforementioned aluminum-cased battery connector bending and inserting mechanism.

[0016] Compared with the prior art, the beneficial effects of this utility model include: by changing the existing bending mechanism to use a bending method with the bottom fixed and the top moving, the consistency of the connecting piece bending can be guaranteed, the positive current collector can be prevented from contacting the negative electrode, the battery short circuit rate can be reduced, the overall equipment is automated, the bending efficiency is higher, and it is practical and reliable. Attached Figure Description

[0017] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts. Wherein:

[0018] Figure 1 The schematic diagram shows an overall structural schematic diagram according to one embodiment of the present invention;

[0019] Figure 2 The diagram schematically shows a partially enlarged view of an upper bending mechanism according to one embodiment of the present invention;

[0020] Figure 3 The diagram schematically shows a partially enlarged view of a lower bending mechanism according to one embodiment of the present invention.

[0021] The diagram shows the following components: 1. Bending platform; 2. Battery; 3. Current collector; 4. Connecting piece; 5. Battery casing; 6. Upper bending mechanism; 7. Lower bending mechanism; 8. Second pressure plate; 9. Dual-axis motion module; 10. Fixing plate; 11. Clamping module; 12. First pressure plate; 13. First bracket; 14. First motor; 15. First slide rail; 16. First nut seat; 17. Second motor; 18. Second slide rail; 19. Second nut seat; 20. First lead screw; 21. Second lead screw; 22. Cylinder fixing frame; 23. Clamping cylinder; 24. Partition plate; 25. Positioning frame; 26. Upper pressure cylinder; 27. First guide rail; 28. First linkage plate; 29. ​​First flange; 30. Second bracket; 31. Lower pressure cylinder; 32. Second guide rail; 33. Second linkage plate; 34. Second flange. Detailed Implementation

[0022] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0023] According to one embodiment of the present invention, in conjunction with Figures 1-3 As shown.

[0024] In this embodiment, for the overall structure, a mechanism for bending the connecting piece 4 of an aluminum-cased battery 2 into the casing includes a bending platform 1. The bending platform 1 clamps and fixes the battery 2, keeping one end of the current collector 3 of the battery 2 exposed. The outside of the current collector 3 is welded to the battery casing 5 through the connecting piece 4. The bending platform 1 also has an upper bending mechanism 6 and a lower bending mechanism 7 fixed on the outside of the current collector 3 of the battery 2. The lower bending mechanism 7 includes a pneumatically lifting first pressure plate 8. After the first pressure plate 8 is pneumatically lifted, it abuts against the bottom of the current collector 3 for support. The upper bending mechanism 6 includes a dual-axis motion module 9, a fixing plate 10, a clamping assembly, and a pneumatically lifting second pressure plate 12. The dual-axis motion module 9 is used to drive the fixing plate 10 to move at one end relative to the current collector 3. The clamping assembly is fixed to the fixing plate 10 to pneumatically clamp both ends of the battery casing 5. After the second pressure plate 12 is pneumatically pressed down, it bends the top surface of the connecting piece 4.

[0025] As can be seen from this solution, the bending method of fixing the bottom and moving the top ensures the consistency of the bending of the connecting piece 4 and avoids the positive current collector 3 from contacting the negative electrode piece.

[0026] As for the specific selection of each structural component, such as Figure 1 As shown, the dual-axis motion module 9 includes a first bracket 13, a first motor 14, a first slide rail 15, a first nut seat 16, a second motor 17, a second slide rail 18, and a second nut seat 19. The first slide rail 15 is fixed to the top of the first bracket 13, and its two ends are rotatably connected to a first lead screw 20. The track direction of the first slide rail 15 is in the same direction as the horizontal placement direction of the battery 2. The center of the first nut seat 16 is threadedly engaged with the first lead screw 20, and its top is slidably connected to the top of the first slide rail 15. The first motor 14 servo drives the first lead screw 20 to rotate. The second slide rail 18 is vertically fixed to the top of the first nut seat 16, and its track direction is perpendicular to the top surface of the battery 2. The upper and lower ends of the second slide rail 18 are rotatably connected to a second lead screw 21. The center of the second nut seat 19 is threadedly engaged with the second lead screw 21, and its top surface is bolted to the fixing plate 10.

[0027] After the first motor 14 rotates, it drives the first lead screw 20 to rotate within the first slide rail 15. Then, the first nut seat 16, which is threaded with it, can move laterally under the limiting action of the first slide rail 15 and guided by the slide rail (i.e., the X-axis). Similarly, the vertical movement (Z-axis) will not be described in detail.

[0028] like Figure 2 and Figure 3As shown, the clamping assembly includes a cylinder mounting bracket 22 and at least two clamping cylinders 23. The cylinder mounting bracket 22 is fixed to the side of the fixing plate 10 opposite to the battery 2. The two clamping cylinders 23 are symmetrically fixed to the top of the cylinder mounting bracket 22. The output direction of the clamping cylinders 23 corresponds to the horizontal placement direction of the battery 2. The battery casing 5 is placed vertically to be embedded in the pneumatic fingers of the two clamping cylinders 23. A partition 24 is also fixed to the back of the positioning frame 25, and the partition 24 is located between the two clamping cylinders 23.

[0029] The clamping of the battery casing 5, i.e. the fixing of the end of the connecting piece 4 itself, is achieved by using the pneumatic fingers of the clamping cylinder 23 to clamp the outer end of the battery casing 5, ensuring that the subsequent bending process of the connecting piece 4 is stable and does not wobble.

[0030] A positioning frame 25 is fixed to the top of the fixing plate 10. The positioning frame 25 is mounted on top of the clamping assembly. On the side of the positioning frame 25 opposite to the battery 2, an upper pressure cylinder 26, a first guide rail 27, and a first linkage plate 28 are also fixed. The track direction of the first guide rail 27 is perpendicular to the top surface of the battery 2. The back of the first linkage plate 28 is slidably connected to the first guide rail 27, and its top is fixedly connected to the output end of the upper pressure cylinder 26. The bottom of the first linkage plate 28 is recessed to fix the second pressure plate 12 with bolts. The width of the second pressure plate 12 corresponds to the width of the connecting piece 4. A first flange 29 protrudes from the bottom of the second pressure plate 12.

[0031] The downward bending mechanism 7 further includes a second bracket 30, a downward pressing cylinder 31, a second guide rail 32, and a second linkage plate 33. The second guide rail 32 is fixed to the top of the second bracket 30, and its track direction is perpendicular to the top surface of the battery 2. The downward pressing cylinder 31 is connected and fixed to the second bracket 30, and its output end is connected and fixed to the second linkage plate 33. The second linkage plate 33 is slidably connected to the second guide rail 32, and its top is bolted to the first pressure plate 8. The top of the first pressure plate 8 has a second flange 34 protruding from it.

[0032] Based on the above structure, the specific process of bending the connecting piece 4 is as follows: the bending platform 1 fixes the battery 2 to the bending and casing station, ensuring that the end current collector 3 is exposed, and then the clamping cylinder 23 retracts, and the pneumatic fingers clamp the two ends of the battery casing 5. Figure 1 Because the shapes of the current collector 2 and 3 parts of the battery are different, they are not shown in three-dimensional structure. Figure 1There is a separation between the current collector 3 and the connecting piece 4 (they should actually be welded together). Then, the lower pressing cylinder 31 in the lower bending mechanism 7 extends, and the first pressing plate 8 moves in the opposite direction of the Z-axis to support and position the bottom of the current collector 3 near the battery 2. Then, the upper pressing cylinder 26 extends, and the second pressing plate 12 moves in the Z-axis to bend the connecting piece 4 near the battery casing 5. Simultaneously, the dual-axis motion module 9 moves laterally and vertically, so that the first pressing plate 8 moves in the X-axis direction while bending the connecting piece 4, and the second pressing plate 12 moves simultaneously along the X-axis and Z-axis directions, cooperating with the first pressing plate 8 to bend the connecting piece 4. After bending, the clamping cylinder 23 opens to release the battery casing 5, and the upper pressing cylinder 26 and the lower pressing cylinder 31 retract, causing the first pressing plate 8 and the second pressing plate 12 to retract. The dual-axis motion module 9 then moves back to its original position to prepare for the next bending of the connecting piece 4.

[0033] Similarly, a packaging system that includes the aforementioned aluminum-cased battery connector bending and inserting mechanism is also within the protection scope of this utility model.

[0034] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A mechanism for bending and inserting a connecting piece into an aluminum-cased battery, comprising a bending platform, wherein a battery is clamped and fixed on the bending platform, and one end of the battery's current collector is exposed, and the outer side of the current collector is welded to the battery casing via a connecting piece, characterized in that: The bending platform is further fixed with an upper bending mechanism and a lower bending mechanism on the outside of the current collector end of the corresponding battery. The lower bending mechanism includes a pneumatically lifted first pressure plate, which is pneumatically lifted and supports the bottom of the current collector. The upper bending mechanism includes a dual-axis motion module, a fixed plate, a clamping assembly, and a pneumatically lifted second pressure plate. The dual-axis motion module is used to drive the fixed plate to move at one end relative to the current collector. The clamping assembly is fixed to the fixed plate to pneumatically clamp both ends of the battery casing. The second pressure plate is pneumatically pressed down to bend the top surface of the connecting piece.

2. The aluminum-cased battery connecting piece bending and inserting mechanism according to claim 1, characterized in that: The dual-axis motion module includes a first bracket, a first motor, a first slide rail, a first nut seat, a second motor, a second slide rail, and a second nut seat. The first slide rail is fixed to the top of the first bracket, and a first lead screw is rotatably connected to both ends of the first slide rail. The track direction of the first slide rail is in the same direction as the horizontal placement direction of the battery. The center of the first nut seat is threadedly engaged with the first lead screw, and its top is slidably connected to the top of the first slide rail. The first motor servo drives the first lead screw to rotate. The second slide rail is vertically fixed to the top of the first nut seat, and its track direction is perpendicular to the top surface of the battery. A second lead screw is rotatably connected to the upper and lower ends of the second slide rail. The center of the second nut seat is threadedly engaged with the second lead screw, and its top surface is bolted to the fixing plate.

3. The aluminum-cased battery connecting piece bending and inserting mechanism according to claim 1, characterized in that: The clamping assembly includes a cylinder mounting bracket and at least two clamping cylinders. The cylinder mounting bracket is fixed to the side of the mounting plate opposite to the battery. The two clamping cylinders are symmetrically fixed to the top of the cylinder mounting bracket. The output direction of the clamping cylinders corresponds to the horizontal placement direction of the battery. The battery casing is placed vertically to be embedded in the pneumatic fingers of the two clamping cylinders.

4. The aluminum-cased battery connecting piece bending and inserting mechanism according to claim 3, characterized in that: A positioning frame is fixed to the top of the fixing plate. The positioning frame is mounted on the top of the clamping assembly. On the side of the positioning frame opposite the battery, an upper pressure cylinder, a first guide rail, and a first linkage plate are also fixed. The track direction of the first guide rail is perpendicular to the top surface of the battery. The back of the first linkage plate is slidably connected to the first guide rail, and its top is fixedly connected to the output end of the upper pressure cylinder. The bottom of the first linkage plate is recessed to fix the second pressure plate with bolts.

5. The aluminum-cased battery connecting piece bending and inserting mechanism according to claim 4, characterized in that: A partition is also fixed to the back of the positioning frame, and the partition is located between the two clamping cylinders.

6. The aluminum-cased battery connecting piece bending and inserting mechanism according to any one of claims 1-5, characterized in that: The width of the second pressure plate corresponds to the width of the connecting piece.

7. The aluminum-cased battery connecting piece bending and inserting mechanism according to any one of claims 1-5, characterized in that: The second pressure plate has a first flange protruding from its bottom.

8. The aluminum-cased battery connecting piece bending and inserting mechanism according to claim 1, characterized in that: The bending mechanism further includes a second bracket, a pressing cylinder, a second guide rail, and a second linkage plate. The second guide rail is fixed to the top of the second bracket, and its track direction is perpendicular to the top surface of the battery. The pressing cylinder is connected and fixed to the second bracket, and its output end is connected and fixed to the second linkage plate. The second linkage plate is slidably connected to the second guide rail, and its top is bolted to the first pressure plate.

9. A mechanism for bending and inserting an aluminum-cased battery connector into the casing according to claim 1 or 8, characterized in that: The first pressure plate has a second flange protruding from its top.

10. A packaging system, characterized in that: The aluminum-cased battery connector bending and inserting mechanism as described in claim 1 is included.

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