Multi-stage stamping die for electrode post
Through the design of multi-stage stamping molds, the step-by-step molding process of multiple stamping heads and inserts is used to solve the problems of low processing efficiency and low yield of electrode pole, and efficient and high-quality electrode pole production is achieved.
Patent Information
- Application Number
- CN202422413612.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-09-30
AI Technical Summary
In the prior art, the processing efficiency of electrode pole columns is low and the yield is low, making it difficult to meet the high-quality production needs.
Multi-stage stamping molds are used, including upper die assembly and lower die assembly, multiple stamping heads and stamping grooves are set up, and different inserts are installed in the inlay holes. The processing of electrode pole columns is achieved through step-by-step molding to ensure the accuracy and sequence of each stamping step.
It improves the processing accuracy and production efficiency of electrode pole columns, reduces the risk of defects, simplifies the mold replacement process, and improves the flexibility and product quality of the production line.
Smart Images
Figure CN223250361U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of electrode pole production, and in particular to a multi-stage stamping die for electrode poles. Background Art
[0002] As lithium-ion battery technology matures, it has been widely used as a primary power source in various fields. The electrode column in a battery is responsible for the flow of current and plays a vital role in battery performance, efficiency, and lifespan. The design and manufacturing process of the electrode column directly impacts the battery's thermal management and mechanical strength, making its processing quality crucial during battery production.
[0003] at present, Figure 9 The electrode pole shown is mainly processed by CNC machine tools, but the processing efficiency is low and the yield rate is low due to process defects. Utility Model Content
[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide an electrode pole stamping device for producing electrode poles with high efficiency and high quality.
[0005] The purpose of this disclosure is achieved through the following technical solutions:
[0006] A multi-stage stamping die for an electrode column includes an upper die assembly and a lower die assembly, the upper die assembly being disposed opposite the lower die assembly. The upper die assembly includes a first punch head, a second punch head, and a third punch head, sequentially disposed along the material feed direction. The lower die assembly includes a die base, a first insert, a second insert, and a third insert. The die base is respectively provided with a first stamping groove, a first insert hole, a second stamping groove, a second insert hole, and a third insert hole.
[0007] The first punching head includes a first boss, the first insert is located in the first insert hole, the top end of the first insert extends into the first punching groove, and the top end of the first insert is provided with a concave punching groove corresponding to the first boss, so that a first annular convex edge is machined on the preformed boss of the pole;
[0008] The second punching head is provided with a second boss, the second insert is provided corresponding to the second punching head, the second insert is located in the second insert hole, and a first annular gap is formed between the top end of the second insert and the inner wall of the second insert hole, so that a second annular convex edge connected to the lower side of the first annular convex edge is processed on the preformed boss;
[0009] The third punching head includes a third boss, and the third insert is arranged corresponding to the third punching head. The third insert is located in the third insert hole, and a second annular gap is formed between the top of the third insert and the inner wall of the third insert hole, so that a third annular ridge connected to the bottom of the second annular ridge can be processed on the preformed boss.
[0010] In one embodiment, the upper mold assembly also includes a fourth punch head, which is arranged on the side of the first punch head away from the second punch head along the material strip feeding direction, and a boss forming groove is formed at the punching end of the fourth punch head; the lower mold assembly also includes a third punch groove, a fourth insert hole and a fourth insert, and the fourth insert is located in the fourth insert hole, and the top end of the fourth insert is arranged corresponding to the boss forming groove to jointly stamp out the preformed boss.
[0011] In one embodiment, the second insert includes an insert body and a forming platform, a first annular groove is formed on the forming platform and an inner wall of the second insert hole, and a connecting portion between the insert body and the forming platform is a concave curved surface.
[0012] In one embodiment, the second punching head is provided with a first annular protrusion, and the diameter of the first annular protrusion is larger than the diameter of the second boss.
[0013] In one embodiment, the end surface of the second stamping groove is provided with a second annular protrusion, and the second annular protrusion is provided along the periphery of the second insert hole.
[0014] In one embodiment, a third annular protrusion is provided along the periphery of the top end of the first insert, the top end of the second insert, and the top end of the third insert.
[0015] In one embodiment, the mold base includes a first mold base, a second mold base, and a third mold base. The first stamping groove, the first insert, and the first insert hole are arranged on the first mold base, the second stamping groove, the second insert, and the second insert hole are arranged on the second mold base, and the third insert and the third insert hole are arranged on the third mold base.
[0016] In one embodiment, avoidance areas are provided between the first mold base, the second mold base, and the third mold base.
[0017] Compared with the prior art, the present disclosure has at least the following advantages:
[0018] 1. By setting up multiple punching heads, multiple punching slots, and multiple inserts, and installing different inserts in the inserts, the electrode pole can be formed in steps. Different punching slots or inserts correspond to different forming steps, effectively reducing material deformation and stress concentration, lowering the risk of defects, ensuring processing accuracy, and thus improving the quality of the electrode pole.
[0019] 2. Through sequential setting, the multi-stage stamping die of the electrode pole can continuously complete multiple stamping processes, thereby significantly improving production efficiency.
[0020] 3. The modular design enables the multi-stage stamping die for electrode poles to quickly adapt to the production needs of electrode poles of different specifications and types, simplifies the replacement process of the multi-stage stamping die for electrode poles, and improves the flexibility of the production line. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.
[0022] Figure 1 A schematic structural diagram of a multi-stage stamping die for an electrode post according to an embodiment;
[0023] Figure 2 for Figure 1 Schematic diagram of the punch head and die base of the multi-stage punching die of the electrode pole shown;
[0024] Figure 3 for Figure 2 A cross-sectional view of the punch head and die base shown;
[0025] Figure 4 for Figure 2 A schematic structural diagram of the first insert of the mold base shown;
[0026] Figure 5 for Figure 2 A schematic structural diagram of the second insert of the mold base shown;
[0027] Figure 6 for Figure 5 A partial enlarged view of the second insert shown;
[0028] Figure 7 for Figure 2 A cross-sectional view of the second stamping die base of the die base;
[0029] Figure 8 for Figure 1Schematic diagram of the stamping process of the multi-stage stamping die of the electrode pole shown;
[0030] Figure 9 A schematic diagram of an electrode pole. DETAILED DESCRIPTION
[0031] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.
[0032] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.
[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0034] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:
[0035] See also Figures 1 to 8 The multi-stage stamping die 10 for an electrode post according to an embodiment of the present invention includes an upper die assembly 100 and a lower die assembly 200, which are arranged opposite to each other. The upper die assembly 100 includes a first punch head 110, a second punch head 120, and a third punch head 130, which are sequentially arranged along the material strip feeding direction. The lower die assembly 200 includes a die base 210, a first insert 211, a second insert 212, and a third insert 213. The die base is respectively provided with a first stamping groove 201, a first insert hole 202, a second stamping groove 203, a second insert hole 204, and a third insert hole 205.
[0036] The first punch head 110 includes a first boss 1101. A first insert 211 is located in the first insert hole 202. The top end of the first insert 211 extends into the first punching groove 201. The top end of the first insert 211 is provided with a concave punching groove (not shown) corresponding to the first boss 1101, so that a first annular convex edge 400 is machined on the preformed boss of the pole.
[0037] The second punch head 120 is provided with a second boss 1201. The second insert 212 is provided corresponding to the second punch head 120. The second insert 212 is located in the second insert hole 202. A first annular gap (not shown) is formed between the top of the second insert 212 and the inner wall of the second insert hole 202, so that a second annular flange 500 connected to the lower side of the first annular flange 400 is machined on the preformed boss.
[0038] The third punch head 130 includes a third boss 1301, and the third insert 213 is arranged corresponding to the third punch head 130. The third insert 213 is located in the third insert hole 205. A second annular gap (not shown) is formed between the top of the third insert 213 and the inner wall of the third insert hole 205, so that a third annular flange 600 connected to the bottom of the second annular flange 500 can be processed on the preformed boss.
[0039] In this embodiment, multiple punching heads 110, multiple punching slots, and multiple insert holes are provided, and different inserts are installed in the insert holes to achieve step-by-step forming of the electrode pole. Different punching slots or insert holes correspond to different forming steps, effectively reducing material deformation and stress concentration, lowering the risk of defects, ensuring processing accuracy, and thus improving the quality of the electrode pole. Furthermore, by sequentially arranging them, the multi-stage stamping die 10 for the electrode pole can continuously complete multiple stamping steps, significantly improving production efficiency.
[0040] Furthermore, the modular design enables the multi-stage stamping die 10 of the electrode pole to quickly adapt to the production requirements of electrode poles of different specifications and types, simplifies the replacement process of the multi-stage stamping die 10 of the electrode pole, and improves the flexibility of the production line.
[0041] like Figure 2 and Figure 3As shown, in one embodiment, the upper die assembly 100 further includes a fourth punch head 140, which is arranged on the side of the first punch head 110 away from the second punch head 120 along the material strip feeding direction, and the stamping end of the fourth punch head 140 is formed with a boss forming groove; the lower die assembly 200 further includes a third stamping groove 206, a fourth insert hole 207 and a fourth insert 214, the fourth insert 214 is located in the fourth insert hole 207, and the top of the fourth insert 214 is arranged corresponding to the boss forming groove to jointly stamp out a pre-formed boss. It can be understood that before starting to stamp the electrode pole, the remaining convex hulls are stamped out on both sides of the material strip to provide the necessary margin for the subsequent stamping process, which is conducive to the formation of complex shapes and structures; at the same time, the consistency and quality of the final product are improved, and the scrap rate caused by improper processing is reduced.
[0042] like Figure 5 As shown, in one embodiment, the second insert 212 includes an insert body 2121 and a forming platform 2122. A first annular groove is formed between the forming platform 2122 and the inner wall of the second insert hole 202. The connection portion 2323 between the insert body 2121 and the forming platform 2122 is a concave curved surface. It can be understood that by using the connection portion 2123 between the insert body 2121 and the forming platform 2122 as the location for forming the first chamfer, the structure of the second insert 212 and the second punch 120 is simplified, stress concentration is reduced, and product quality is improved. Specifically, in this embodiment, the arc radius of the concave curved surface of the connection portion 2123 is equal to the chamfer radius of the electrode post, ensuring a good fit and stability, and guaranteeing the dimensional accuracy of the electrode post.
[0043] like Figure 2 and Figure 3 As shown, in one embodiment, the second punch head 120 is provided with a first annular protrusion 1202, and the diameter of the first annular protrusion 1202 is larger than the diameter of the second boss 1201. It can be understood that,
[0044] like Figure 2 and Figure 7 As shown, in one embodiment, the end surface of the second stamping groove 203 is provided with a second annular protrusion 2031, which is arranged along the periphery of the second insert hole 204. Specifically, in this embodiment, the second annular protrusion 2031 is a circular arc protrusion, so that a groove is formed between the electrode post substrate and the first annular flange 400. By integrating the second annular protrusion 2031 into the second stamping groove 203, the structure of the second punch head 120 or the second insert 212 can be effectively simplified, making the overall design of the multi-stage stamping die 10 for the electrode post more efficient.
[0045] like Figures 3 to 5As shown, in one embodiment, the top of the first insert 211, the top of the second insert 212, and the top of the third insert 213 are all provided with a third annular protrusion 214 along their circumferences. Specifically, in this embodiment, the third annular protrusion 214 is used to form a connecting groove between the inner wall of the first annular flange 400 and the substrate, thereby reducing the difficulty and complexity of subsequent processing and improving production efficiency. Furthermore, the third annular protrusion 214 helps position the strip, preventing deformation or misalignment during the stamping process, thereby improving molding quality.
[0046] like Figures 2 to 3 As shown, in one embodiment, the die base 210 includes a first die base 210a, a second die base 210b, and a third die base 210c. The first stamping groove 201, the first insert 211, and the first insert hole 202 are provided in the first die base 210a, the second stamping groove 203, the second insert 212, and the second insert hole 204 are provided in the second die base 210b, and the third insert 213 and the third insert hole 205 are provided in the third die base 210c. It can be understood that by providing different stamping grooves and inserts on different die bases 210, each die base 210 is dedicated to a specific function, which helps improve processing accuracy and ensures more accurate docking and matching of various parts during the stamping process. At the same time, it facilitates the assembly, disassembly, and maintenance of the multi-stage stamping die 10 for electrode poles, and the die base can be adjusted to meet production needs, reducing the complexity of the overall design and processing.
[0047] Furthermore, the lower die assembly 200 of the multi-stage stamping die 10 of the electrode pole is further provided with a fourth die base 210d, and the third stamping groove 206, the fourth insert hole 207 and the fourth insert 214 are provided on the fourth die base 210d.
[0048] like Figures 2 to 3 As shown, a clearance area 300 is provided between the first die base 210a, the second die base 210b, and the third die base 210c. It can be understood that the provision of the clearance area 300 can effectively reduce the interference between the die bases 210 during the stamping process, avoid wear or deformation caused by the mutual contact of the components of the multi-stage stamping die 10 for the electrode pole, and thus increase the service life of the multi-stage stamping die 10 for the electrode pole. At the same time, it can improve the cooling effect inside the multi-stage stamping die 10 for the electrode pole, help maintain the temperature of the material during the stamping process, and improve the forming accuracy and quality.
[0049] Compared with the prior art, the present disclosure has at least the following advantages:
[0050] 1. By setting up multiple stamping heads and stamping modules, the electrode pole can be formed in steps. Each stamping die is responsible for the corresponding forming step, which effectively reduces material deformation and stress concentration, reduces the risk of defects, ensures processing accuracy, and thus improves the quality of the electrode pole.
[0051] 2. By arranging multiple stamping modules and stamping heads in sequence, the mold can complete multiple stamping processes continuously, thereby significantly improving production efficiency.
[0052] 3. The modular design enables the mold to quickly adapt to the production requirements of electrode poles of different specifications and types, simplifies the mold replacement process, and improves the flexibility of the production line.
[0053] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the disclosed patent shall be determined by the appended claims.
Claims
1. A multi-stage stamping die for an electrode column, comprising: An upper die assembly and a lower die assembly, wherein the upper die assembly is arranged opposite to the lower die assembly, and is characterized in that the upper die assembly includes a first punch head, a second punch head, and a third punch head sequentially arranged along the material strip feeding direction, and the lower die assembly includes a die base, a first insert, a second insert, and a third insert, and the die base is respectively provided with a first punching groove, a first insert hole, a second punching groove, a second insert hole, and a third insert hole; The first punching head includes a first boss, the first insert is located in the first insert hole, the top end of the first insert extends into the first punching groove, and the top end of the first insert is provided with a concave punching groove corresponding to the first boss, so that a first annular convex edge is machined on the preformed boss of the pole; The second punching head is provided with a second boss, the second insert is provided corresponding to the second punching head, the second insert is located in the second insert hole, and a first annular gap is formed between the top end of the second insert and the inner wall of the second insert hole, so that a second annular convex edge connected to the lower side of the first annular convex edge is processed on the preformed boss; The third punching head includes a third boss, and the third insert is arranged corresponding to the third punching head. The third insert is located in the third insert hole, and a second annular gap is formed between the top of the third insert and the inner wall of the third insert hole, so that a third annular ridge connected to the bottom of the second annular ridge can be processed on the preformed boss.
2. The multi-stage stamping die for electrode poles according to claim 1, characterized in that: The upper die assembly also includes a fourth punch head, which is arranged on the side of the first punch head away from the second punch head along the material strip feeding direction, and a boss forming groove is formed at the punching end of the fourth punch head; the lower die assembly also includes a third punch groove, a fourth insert hole and a fourth insert, the fourth insert is located in the fourth insert hole, and the top end of the fourth insert is arranged corresponding to the boss forming groove to jointly stamp out the preformed boss.
3. The multi-stage stamping die for electrode poles according to claim 1, characterized in that: The second insert includes an insert body and a forming platform. A first annular groove is formed on the forming platform and the inner wall of the second insert hole. The connecting portion between the insert body and the forming platform is an inwardly concave curved surface.
4. The multi-stage stamping die for electrode poles according to claim 1, characterized in that: The second punching head is provided with a first annular protrusion, and the diameter of the first annular protrusion is larger than the diameter of the second boss.
5. The multi-stage stamping die for electrode poles according to claim 1, characterized in that: The end surface of the second punching groove is provided with a second annular protrusion, and the second annular protrusion is provided along the periphery of the second inserting hole.
6. The multi-stage stamping die for electrode poles according to claim 1, characterized in that: The top of the first insert, the top of the second insert and the top of the third insert are all provided with a third annular protrusion along the periphery.
7. The multi-stage stamping die for electrode poles according to claim 1, characterized in that: The mold base includes a first mold base, a second mold base and a third mold base. The first stamping groove, the first insert and the first insert hole are arranged on the first mold base, the second stamping groove, the second insert and the second insert hole are arranged on the second mold base, and the third insert and the third insert hole are arranged on the third mold base.
8. The multi-stage stamping die for electrode poles according to claim 7, characterized in that: Avoidance areas are provided between the first mold base, the second mold base and the third mold base.