Battery assembly mold and battery assembly apparatus
By using the upper and lower molds of the battery assembly mold, and employing a pressing mechanism and a shrinking part to compress and limit the opening of the battery casing, the problem of inaccurate battery casing positioning is solved, and precise shrinking of the battery casing opening is achieved, thereby improving the battery assembly accuracy and quality.
Patent Information
- Application Number
- CN202423023427.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-09
AI Technical Summary
In the prior art, the problem of insufficient positioning accuracy of the battery casing during battery assembly is that the positioning accuracy of the battery casing is insufficient, resulting in inconsistent opening shapes of the battery casing and affecting the cell packaging accuracy.
A battery assembly mold including an upper mold and a lower mold is used. The opening of the battery casing is compressed and limited by a pressing mechanism. The opening of the battery casing is gradually reduced by the first and second shrinking parts, so as to achieve precise positioning and shrinking of the opening of the battery casing.
This improves the positioning accuracy of the battery casing, ensures that the opening of the battery casing matches the design size, and enhances the precision and quality of battery assembly.
Smart Images
Figure CN223603304U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to battery production technical field especially relates to a kind of battery assembly mould and battery assembly equipment. BACKGROUND
[0002] After cylindrical battery bare shell is stretched and formed, the cut-off structure caused by the different sealing processes of battery cell to battery shell body port is different. For example, the laser sealing of battery cell, which usually uses steel shell as the shell of battery, the cut surface of steel shell must be flat, which requires the battery shell to be rotated and cut after stretching to remove the excess material of the port of battery shell. At the same time of removing the material, the battery shell is formed into a round shell by multiple stretching processes, and the stress generated during the process is concentrated on the port part of the battery shell, which leads to the stress release of the port part by secondary cutting, and the port expands outward to form a horn shape, affecting the packaging accuracy of the battery cell.
[0003] Therefore, it is urgent to provide a new battery assembly mould and battery assembly equipment to solve the above technical problems in the prior art. SUMMARY
[0004] One object of the utility model is to provide a battery assembly mould, which can improve the positioning accuracy of the battery shell during battery assembly, realize the necking of the opening of the battery shell, and improve the assembly precision and assembly quality of the battery.
[0005] To achieve this object, the utility model adopts the following technical solutions:
[0006] The battery assembly mould comprises an upper mould and a lower mould, the upper mould is provided with a press-fitting mechanism, the upper mould and the lower mould can approach each other in the vertical direction, the lower mould is provided with a mounting platform, the mounting platform is used to carry the battery shell with the opening facing downward, the top wall of the upper mould is provided with a first necking piece, the first necking piece is provided with a first assembly hole coaxial with the battery shell, the inner diameter of at least part of the first assembly hole is the same as the outer diameter of the battery shell, and the opening of the battery shell can be put into the first assembly hole from the top port of the first assembly hole.
[0007] Optionally, the first assembly hole comprises a first tapered section with gradually decreasing inner diameter from top to bottom and a first connecting section arranged below the first tapered section, the inner diameter of the first connecting section is the same as the minimum inner diameter of the first tapered section, and the inner diameter of the first connecting section is the same as that of the battery shell.
[0008] Optionally, a support column is arranged in the first assembly hole, the outer diameter of the support column is the same as the inner diameter of the battery shell, and the support column is fitted to be arranged in the battery shell.
[0009] Optionally, a spacer is arranged below the first necking member, the spacer has a mounting hole coaxial with the battery shell, an inner diameter of the mounting hole is larger than an outer diameter of the support column, and a height of the spacer is adjustable.
[0010] Optionally, a second necking member is further arranged above the first necking member, the second necking member is provided with a second assembly hole coaxial with the battery shell, and an inner diameter of at least part of the second assembly hole is the same as an outer diameter of the battery shell.
[0011] Optionally, the second assembly hole comprises a second tapered section with a gradually reduced inner diameter from top to bottom and a second connecting section arranged below the second tapered section, an inner diameter of the second connecting section is the same as a minimum inner diameter of the second tapered section, and the second connecting section is the same as the outer diameter of the battery shell.
[0012] Optionally, a maximum inner diameter of the second tapered section is larger than a maximum inner diameter of the first tapered section.
[0013] Optionally, a second transition chamfer is arranged at a top end of the second tapered section and a connection between the second tapered section and the second connecting section.
[0014] Optionally, the lower mold is provided with a plurality of spaced first necking members, and the plurality of first necking members one-to-one correspond to the plurality of battery shells.
[0015] Another purpose of the utility model lies in providing a battery assembly equipment, which comprises the battery assembly mold according to any one of the above solutions.
[0016] Beneficial effects:
[0017] The battery assembly mold comprises an upper mold and a lower mold, wherein the upper mold and the lower mold support can be close to each other, so that the upper mold provided with a press-fitting mechanism can press fit the part of the battery shell with the opening facing down on the mounting platform of the lower mold, the opening of the battery shell is put into the first assembly hole of the first necking member on the mounting platform, so that the first assembly hole can compress and limit the opening of the battery shell, and the edge curling, edge turning and the like of the opening of the battery shell are fixed by pressing, so that the size of the opening of the battery shell is the same as the design inner diameter of the battery shell, and the purpose of necking is achieved. The battery assembly mold can improve the positioning accuracy of the battery shell during battery assembly, realize the necking of the opening of the battery shell, make the opening the same as the design size, and thus improve the assembly precision and assembly quality of the battery. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 is the axonometric view of the battery assembly mold provided by the embodiment of the utility model, and
[0019] Figure 2 is a longitudinal sectional view of a battery assembly die provided by the embodiment of the utility model;
[0020] Figure 3 is Figure 2 the local enlarged view of A in figure.
[0021] in the figure:
[0022] 10, battery shell; 11, pole assembly;
[0023] 100, upper die; 110, press-fitting mechanism;
[0024] 200, lower die; 210, mounting platform; 220, first necking part; 221, first assembly hole; 222, first tapering section; 223, first connecting section; 230, second necking part; 231, second assembly hole; 232, second tapering section; 233, second connecting section; 234, second transition chamfer; 240, cushion block; 241, mounting hole; 250, support column. DETAILED DESCRIPTION
[0025] The utility model will be further explained in detail below in combination with the drawings and examples. It can be understood that the specific examples described here are only used to explain the utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the parts related to the utility model are shown in the drawings, not all structures.
[0026] In the description of the utility model, unless otherwise explicitly specified and limited, the terms "connected", "connected", "fixed" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0027] In the utility model, unless otherwise explicitly specified and limited, the first feature "on" or "below" the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0028] In the description of the present embodiment, the terms "upper", "lower", "right", "left", and the like, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first" and "second" are only used to distinguish in the description, and have no special meaning.
[0029] Please refer to Figures 1 to 3 In the present embodiment, the battery assembly mold includes an upper mold 100 and a lower mold 200, the upper mold 100 is provided with a press-fitting mechanism 110; the upper mold 100 and the lower mold 200 can approach each other in the vertical direction, the lower mold 200 is provided with a mounting platform 210, the mounting platform 210 is used to carry the battery shell 10 with the opening downward, the top wall of the upper mold 100 is provided with a first necking part 220, the first necking part 220 is provided with a first assembly hole 221 coaxial with the battery shell 10, at least part of the inner diameter of the first assembly hole 221 is the same as the outer diameter of the battery shell 10, and the opening of the battery shell 10 can be put into the first assembly hole 221 from the top port of the first assembly hole 221.
[0030] The battery assembly mold in the present embodiment includes an upper mold 100 and a lower mold 200, wherein the upper mold 100 and the lower mold 200 can approach each other, so that the upper mold 100 is provided with a press-fitting mechanism 110 to press-fit the parts of the battery shell 10 carried by the mounting platform 210 of the lower mold 200, the opening of the battery shell 10 is put into the first assembly hole 221 of the first necking part 220 on the mounting platform 210, so that the first assembly hole 221 compresses and limits the opening of the battery shell 10, and the crimping, flanging and the like of the opening of the battery shell 10 are tightly fixed, so that the size of the opening of the battery shell 10 is the same as the designed inner diameter of the battery shell 10, achieving the purpose of necking. The battery assembly mold can improve the positioning accuracy of the battery shell 10 during battery assembly, realize the necking of the opening of the battery shell 10, so that it is the same as the designed size, thereby improving the assembly precision and assembly quality of the battery.
[0031] Please continue to refer to Figure 1 and Figure 2 In the present embodiment, the top of the battery shell 10 has a pole hole for passing through the pole assembly 11, by approaching the lower mold 200 downward by the upper mold 100, the press-fitting mechanism 110 assembles and fixes the pole assembly 11 in the pole hole, realizing the press-fitting and assembly of the battery shell 10.
[0032] Further, the lower mold 200 is provided with a plurality of first necking members 220, each of which is arranged to accommodate a battery shell 10. In this embodiment, each of the first necking members 220 is provided with four battery shells 10, so that the battery shells 10 can be simultaneously pressed and assembled, thereby improving the assembly efficiency.
[0033] As shown in Figure 3 the first assembly hole 221 includes a first tapered section 222 with a gradually reduced inner diameter from top to bottom and a first connecting section 223 arranged below the first tapered section 222. The inner diameter of the first connecting section 223 is the same as the minimum inner diameter of the first tapered section 222, and the inner diameter of the first connecting section 223 is the same as the inner diameter of the battery shell 10. In this embodiment, when the battery shell 10 is placed into the first necking member 220 from the first assembly hole 221, the opening of the battery shell 10 can be necked by the first tapered section 222, so that the size of the opening of the battery shell 10 is gradually reduced to the designed size, thereby improving the assembly precision and the production quality of the finally formed battery.
[0034] In this embodiment, a support column 250 is arranged in the first assembly hole 221. The outer diameter of the support column 250 is the same as the inner diameter of the battery shell 10, and the support column 250 is arranged to pass through the battery shell 10. The support column 250 can support and guide the battery shell 10, and in cooperation with the first tapered section 222, the support column 250 can extrude the side wall of the battery shell 10 from both the inside and the outside of the battery shell 10, thereby necking the battery shell 10. The necked battery shell 10 has higher precision.
[0035] As a preferred embodiment, a pad 240 is arranged below the first necking member 220. The pad 240 has a mounting hole 241 coaxial with the battery shell 10. The inner diameter of the mounting hole 241 is greater than the outer diameter of the support column 250, and the height of the pad 240 is adjustable. The height of the pad 240 can be adjusted by replacing pads 240 with different heights or by adjusting the height of the pad 240 by bolts, etc., so as to adjust the height of the first necking member 220. The pad 240 is suitable for battery shells 10 with different heights and improves the application range.
[0036] Please continue to refer to Figure 3In the embodiment, the first necking part 220 is further provided with a second necking part 230. The second necking part 230 is provided with a second assembly hole 231 coaxial with the battery shell 10. At least part of the inner diameter of the second assembly hole 231 is the same as the outer diameter of the battery shell 10. Through the second necking part 230 and the first necking part 220, the battery shell 10 sequentially passes through the second assembly hole 231 and the first assembly hole 221, thereby realizing the step-by-step necking of the opening of the battery shell 10, achieving accurate adjustment of the opening size of the battery shell 10, and ensuring that the size of the opening of the battery shell 10 is always the same as the design size.
[0037] Optionally, the second assembly hole 231 includes a second tapered section 232 with a gradually reduced inner diameter from top to bottom and a second connecting section 233 arranged below the second tapered section 232. The inner diameter of the second connecting section 233 is the same as the minimum inner diameter of the second tapered section 232, and the outer diameter of the second connecting section 233 is the same as the battery shell 10. Similarly, the second tapered section 232 with a gradually reduced inner diameter can gradually neck the opening of the battery shell 10, improving the opening size accuracy of the necked battery shell 10. The inner diameter of the second connecting section 233 is the same as the outer diameter of the battery shell 10, which can enable the necked battery shell 10 to smoothly pass through the second assembly hole 231 and enter the first necking part 220 for secondary necking. Details are not repeated here.
[0038] In the embodiment, the maximum inner diameter of the second tapered section 232 is greater than the maximum inner diameter of the first tapered section 222. Such a design can enable more accurate compression regulation of the first tapered section 222 of the first necking part 220 after the second necking part 230 preliminarily necks the battery shell 10, thereby improving the opening size accuracy of the necked battery shell 10.
[0039] In the embodiment, the top port of the second tapered section 232 and the connection between the second tapered section 232 and the second connecting section 233 are provided with a second transition chamfer 234. Similarly, the top port of the first necking part 220 and the connection between the first tapered section 222 and the first connecting section 223 are provided with a first transition chamfer (not shown in the figure). The second transition chamfer 234 can avoid the sharp top port of the second necking section and the connection between the second tapered section 232 and the second connecting section 233 from scratching and damaging the outer wall of the battery shell 10 when the battery shell 10 enters the second assembly hole 231, thereby protecting the battery shell 10 and improving the quality of the opening of the battery shell 10, and improving the opening size accuracy of the battery shell 10 during final assembly.
[0040] The battery assembling device uses the battery assembling mold of any one of the above solutions, thereby having the beneficial effects of the battery assembling mold of any one of the above solutions, which will not be repeated here. The battery assembling device can press and fix the edge folding, edge turning and the like of the opening of the battery shell 10 when assembling the parts of the battery shell 10, so that the size of the opening of the battery shell 10 is the same as the design size of the battery shell 10, the purpose of necking is achieved, thereby improving the positioning accuracy of the battery shell 10 during battery assembling, and further improving the assembling precision and assembling quality of the battery.
[0041] Obviously, the above embodiments of the utility model are only examples for clearly explaining the utility model, and are not a limitation on the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, re-adjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the embodiments need not and cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.
Claims
1. A battery assembly mold characterized by, The utility model relates to a battery shell compression assembly device, including: Upper mould (100), upper mould (100) is provided with pressure equipment (110); Lower mould (200), upper mould (100) and lower mould (200) can be close to each other along vertical direction, lower mould (200) is provided with mounting platform (210), and mounting platform (210) is used for carrying open downward battery shell (10), and the top wall of upper mould (100) is provided with first necking (220), first necking (220) is provided with first assembly hole (221) with the coaxial of battery shell (10), and the inner diameter of at least partial first assembly hole (221) is same with the outer diameter of battery shell (10), and the opening of battery shell (10) can be put into first assembly hole (221) from the top port of first assembly hole (221).
2. The battery assembly mold of claim 1, wherein, First assembly hole (221) includes first tapering section (222) that inner diameter gradually reduces from top to bottom and first link section (223) that is arranged below first tapering section (222), and the inner diameter of first link section (223) is same with the minimum inner diameter of first tapering section (222), and first link section (223) is same with the inner diameter of battery shell (10).
3. The battery assembly mold of claim 2, wherein, Supporting column (250) is arranged in first assembly hole (221), and the outer diameter of supporting column (250) is same with the inner diameter of battery shell (10), and supporting column (250) is fitted to be arranged in battery shell (10).
4. The battery assembly mold of claim 3, wherein, The lower side of first necking (220) is provided with cushion block (240), and the mounting hole (241) of cushion block (240) is coaxial with the battery shell (10), the inner diameter of mounting hole (241) is greater than the outer diameter of supporting column (250), and the height of cushion block (240) is adjustable.
5. The battery assembly mold of claim 2, wherein, The upper side of first necking (220) is further provided with second necking (230), and second necking (230) is provided with second assembly hole (231) coaxial with battery shell (10), and the inner diameter of at least partial second assembly hole (231) is same with the outer diameter of battery shell (10).
6. The battery assembly mold of claim 5, wherein, Second assembly hole (231) includes second tapering section (232) that inner diameter gradually reduces from top to bottom and second link section (233) that is arranged below second tapering section (232), and the inner diameter of second link section (233) is same with the minimum inner diameter of second tapering section (232), and second link section (233) is same with the outer diameter of battery shell (10).
7. The battery assembly mold of claim 6, wherein, The maximum inner diameter of second tapering section (232) is greater than the maximum inner diameter of first tapering section (222).
8. The battery assembly mold of claim 6, wherein, The top port of second tapering section (232) and the junction of second tapering section (232) and second link section (233) are provided with second transition chamfer (234).
9. The battery assembly mold of any one of claims 1-8, wherein, The lower mold (200) is provided with a plurality of first necking elements (220) which are spaced apart, and each of the plurality of first necking elements (220) corresponds to and accommodates one of the plurality of battery casings (10).
10. A battery assembly apparatus, characterized by, A battery assembly mold comprising the battery assembly mold according to any one of claims 1-9.