A new energy battery aluminum shell processing punch device
By combining multiple step-by-step stamping and lubrication components, the problem of cracking and adhesion caused by excessive deformation of aluminum material during one-time stamping of new energy battery aluminum shells has been solved, achieving efficient and safe aluminum shell processing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINZHAI SHENGSHI GREEN ENERGY TECHNOLOGY CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-07-07
AI Technical Summary
In existing technologies, the aluminum shell of new energy batteries is prone to cracking and wrinkling due to excessive deformation of the aluminum material during one-time stamping, and it is also easy to cold weld with the mold, resulting in a high scrap rate.
The aluminum material is pressed into the bottom mold with increasing depth by using a multi-stage stamping process combined with a lubrication system. The aluminum material is pressed into the bottom mold with increasing depth by using a hydraulic cylinder to drive the top plate and top mold. Automatic demolding is achieved by using a demolding mechanism, and an oil film is formed by the lubricant to prevent adhesion.
It effectively avoids the problems of aluminum material cracking and adhesion, improves the stamping success rate, reduces the scrap rate, and improves processing efficiency and safety.
Smart Images
Figure CN224463534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of battery aluminum shell processing technology, and in particular to a stamping device for processing aluminum shells of new energy batteries. Background Technology
[0002] For example, Chinese patent CN216965953U discloses a processing device for aluminum shells of new energy batteries. The aluminum shell is formed by stamping, which is simple and convenient to operate. Multiple battery aluminum shells can be processed at the same time. The formed aluminum shells are demolded quickly, which improves the processing efficiency of aluminum shells to a certain extent. The stamped aluminum plate can be locked and fixed during the processing. A protective mechanism is added to the stamping part, which is more stable, safe and reliable.
[0003] The battery aluminum casing stamping device in the aforementioned application employs a one-time stamping process. However, due to the thinness of the aluminum material, the deformation of the aluminum material in a single stamping process is excessive, resulting in a friction coefficient between the aluminum material and the mold surface as high as 0.3-0.5. This causes local temperature rises to reach 150-250℃, far exceeding the 200℃ required for aluminum recrystallization. The combination of excessively high temperature and stress concentration makes the aluminum casing more prone to cracking and wrinkling during the stamping process, resulting in a high scrap rate. Simultaneously, cold welding is likely to occur between the aluminum material and the mold at high temperatures, causing the aluminum material to adhere to the inner wall of the mold, leading to stamping failure. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a stamping device for processing aluminum shells of new energy batteries. It solves the technical problem that in existing technologies, excessive deformation of aluminum material during a single stamping process can cause the aluminum material to heat up, adhere to the inner wall of the mold, or even crack directly. This device achieves the purpose of multiple, gradual stamping of aluminum material and lubrication of the aluminum surface to prevent adhesion and cracking.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a stamping device for processing aluminum shells of new energy batteries, including support legs installed at the four corners of the bottom of the processing table, multiple bottom molds are horizontally arranged on the processing table, a top plate is installed above the processing table, multiple top molds perpendicular to the bottom molds are horizontally arranged at the bottom of the top plate, a hydraulic cylinder connected to the support structure is installed on the top of the top plate, a demolding mechanism for automatically demolding the stamped aluminum material is provided in each of the multiple bottom molds, and a feeding mechanism for moving and feeding the aluminum material during the stamping process is provided on the processing table.
[0006] A further improvement is that the depth of the multiple bottom molds gradually increases, and the length of the corresponding top mold is also adapted to the depth of its corresponding bottom mold.
[0007] A further improvement is that the demolding mechanism includes a bottom shell installed at the bottom of the bottom mold, a plurality of compression springs are arrayed on the bottom wall of the bottom shell, a piston plate is slidably connected to the inner wall of the bottom shell and installed on the top of the compression springs, a connecting rod extending into the bottom mold is installed on the top of the piston plate, a lifting plate adapted to the inner wall of the bottom mold is installed on the top of the connecting rod, and a lubrication component for lubricating and cooling the surface of the stamped aluminum material is provided inside the bottom shell.
[0008] A further improvement is that the lubrication assembly includes lubricating fluid injected into the bottom shell, an annular tube installed on the outside of the bottom mold and at the bottom of the processing table, a plurality of injection tubes extending into the bottom mold arranged in an array along the inner wall of the annular tube, and an infusion tube extending into the annular tube at the bottom of the bottom shell.
[0009] A further improvement is that the feeding mechanism includes guide rails installed on both sides of the top of the processing table, an electric slide table is slidably connected on the guide rails, and multiple mounting seats corresponding to the bottom mold are installed on the top of the electric slide table. Each mounting seat is equipped with an electric push rod, the free end of the electric push rod passes through the mounting seat and is equipped with a clamping plate, and a rubber pad is installed on the outside of the clamping plate.
[0010] A further improvement is that guide ears are installed at all four corners of the top plate, and limit guide posts that are adapted to and perpendicularly correspond to the through holes opened on the guide ears are installed at all four corners of the processing table.
[0011] By means of the above technical solution, this utility model provides a stamping device for processing aluminum shells of new energy batteries, which has at least the following beneficial effects:
[0012] 1. This utility model uses a hydraulic cylinder to push the top plate downward, which in turn pushes the aluminum material into the bottom mold for stretching and forming. Because multiple bottom molds with progressively increasing depths are set, the aluminum material is stamped and stretched into an aluminum shell in multiple stages, avoiding excessive deformation of the aluminum material caused by a single stamping, which can lead to wrinkling and cracking of the aluminum material. This improves the stamping success rate of the aluminum material and reduces waste of aluminum material.
[0013] 2. This utility model uses the compression spring to reset under its own elasticity and push the piston plate to move upward, which in turn drives the connecting rod and the lifting plate to move upward, thereby pushing the aluminum material inside the bottom mold to move up to the processing table surface, completing automatic demolding and improving stamping efficiency.
[0014] 3. In this invention, the piston plate is pressed down until it comes into contact with the lubricating fluid at the bottom of the bottom shell and the lubricating fluid is forced into the infusion pipe and flows into the annular pipe and is injected into the bottom mold through the injection pipe. This lubricates the surface of the stamped aluminum material to form an oil film, thereby preventing the aluminum material from adhering to the inner wall of the bottom mold and causing the aluminum shell processing to fail. Attached Figure Description
[0015] The accompanying drawings, which are provided to further illustrate this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application.
[0016] In the attached diagram:
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a side view of the structure of this utility model;
[0019] Figure 3 This is a schematic diagram of the independent structure of the processing table and feeding mechanism of this utility model;
[0020] Figure 4 This is a cross-sectional view of the internal structure of the bottom mold and lubrication assembly of this utility model;
[0021] Figure 5 This is an independent schematic diagram of the top plate and its upper structure of this utility model.
[0022] In the diagram: 1. Processing table; 2. Support leg; 3. Bottom mold; 4. Top plate; 5. Top mold; 6. Hydraulic cylinder;
[0023] 7. Demolding mechanism; 71. Bottom shell; 72. Compression spring; 73. Piston plate; 74. Connecting rod; 75. Lifting plate;
[0024] 76. Lubrication assembly; 761. Ring tube; 762. Injection tube; 763. Infusion tube;
[0025] 8. Feeding mechanism; 81. Guide rail; 82. Electric slide table; 83. Mounting base; 84. Electric push rod; 85. Clamping plate; 86. Rubber pad;
[0026] 91. Guide ear plate; 92. Limiting guide post. Detailed Implementation
[0027] 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.
[0028] Example 1
[0029] Given the existing technology where one-time stamping can cause excessive deformation of the aluminum material, leading to overheating, adhesion to the mold wall, or even direct cracking, this embodiment provides a stamping device for processing aluminum shells for new energy batteries. Please refer to... Figures 1-5 This stamping device for processing aluminum shells for new energy batteries can perform multiple progressive stampings and lubricate the aluminum surface to prevent adhesion and cracking. It includes support legs 2 installed at the four corners of the bottom of a processing table 1; multiple bottom dies 3 horizontally arranged on the processing table 1; a top plate 4 above the processing table 1; multiple top dies 5 horizontally arranged at the bottom of the top plate 4, perpendicular to the bottom dies 3; a hydraulic cylinder 6 connected to the support structure installed on the top of the top plate 4; a demolding mechanism 7 for automatically demolding the stamped aluminum material within each of the bottom dies 3; and a feeding mechanism 8 on the processing table 1 for moving and feeding the aluminum material during the stamping process.
[0030] The depth of multiple bottom dies 3 gradually increases, and the length of the corresponding top die 5 is also adapted to the depth of its corresponding bottom die 3. After the aluminum material is placed on the bottom die 3, the hydraulic cylinder 6 is activated to push the top plate 4 down, which in turn pushes the top die 5 down to press the aluminum material into the bottom die 3 for stretching and forming. Because multiple bottom dies 3 with gradually increasing depths are set, the aluminum material is stamped and stretched into an aluminum shell in multiple times, avoiding excessive deformation of the aluminum material due to one-time stamping, which can lead to wrinkling and cracking of the aluminum material. This improves the stamping success rate of the aluminum material and reduces the waste of aluminum material.
[0031] Because manual demolding is inefficient and poses certain safety hazards, the device also includes a demolding mechanism 7. The demolding mechanism 7 includes a bottom shell 71 installed at the bottom of the bottom mold 3. Multiple compression springs 72 are arrayed on the bottom wall of the bottom shell 71. A piston plate 73, slidably connected to the inner wall of the bottom shell 71, is installed on the top of each compression spring 72. A connecting rod 74, extending into the bottom mold 3, is installed on the top of the connecting rod 74. A lifting plate 75, adapted to the inner wall of the bottom mold 3, is installed on the top of the connecting rod 74. The bottom shell 71 contains a lubricating and cooling mechanism for the surface of the stamped aluminum material. The lubrication component 76, when the top mold 5 moves down to press the aluminum material into the bottom mold 3, simultaneously pushes the lifting plate 75 down and drives the connecting rod 74 down to press the piston plate 73 down along the inner wall of the bottom shell 71 and squeeze the compression spring 72 until the top mold 5 presses the aluminum material completely into the bottom mold 3 and then rises to reset. At this time, the compression spring 72 resets under its own elasticity and pushes the piston plate 73 up, which in turn drives the connecting rod 74 and the lifting plate 75 up, thereby pushing the aluminum material inside the bottom mold 3 to move up to the table surface of the processing table 1, completing automatic demolding and improving stamping efficiency.
[0032] In the aluminum shell stamping process, the aluminum material needs to be stamped multiple times. Manual feeding would be extremely inefficient. Therefore, this device also includes a feeding mechanism 8. The feeding mechanism 8 includes guide rails 81 mounted on both sides of the top of the processing table 1. An electric slide table 82 is slidably connected to the guide rails 81. Multiple mounting seats 83, corresponding to the bottom mold 3, are mounted on the top of the electric slide table 82. Each mounting seat 83 is equipped with an electric push rod 84. The free end of the electric push rod 84 passes through the mounting seat 83 and is fitted with a clamping plate 85. A rubber pad 86 is installed on the outside of the clamping plate 85. When… After the lifting plate 75 lifts the stamped aluminum material onto the worktable 1, the electric push rod 84 is simultaneously activated to push the clamping plates 85 on both sides to move relative to each other, thereby clamping and fixing the aluminum material from both sides. The setting of the rubber soft pad 86 is activated to increase the friction with the surface of the aluminum material and to avoid scratching the surface of the aluminum material. Then, the electric slide table 82 is driven to move to the right along the guide rail 81, thereby moving the clamped aluminum material to the bottom mold 3 for the next stamping. After the material is fed, the electric push rod 84 drives the clamping plate 85 to retract and return to the initial position to wait for the next shift feeding.
[0033] To prevent the top plate 4 from tilting during long-term stamping, which could lead to misalignment between the top die 5 and the bottom die 3, guide ears 91 are installed at each of the four corners of the top plate 4 in this device. Limiting guide posts 92, which are adapted to and perpendicularly correspond to the through holes opened on the guide ears 91, are installed at each of the four corners of the processing table 1. As the top plate 4 moves down, the guide ears 91 on it slide down along the outer wall of the limiting guide posts 92, thereby preventing the top plate 4 from tilting during long-term use, which could lead to misalignment between the top die 5 and the bottom die 3 at its bottom, and thus affect the stamping process of the aluminum shell.
[0034] Example 2
[0035] Because aluminum generates high temperatures during the stamping process and is prone to cold welding with the inner wall of the bottom mold 3, causing the aluminum to adhere to the inner wall of the bottom mold 3, therefore, based on Example 1, as follows... Figures 1-5 As shown, the device is also equipped with a lubrication assembly 76, which includes lubricating fluid injected into the bottom shell 71. An annular tube 761 is installed on the outside of the bottom mold 3 and at the bottom of the processing table 1. Multiple injection tubes 762 extending into the bottom mold 3 are arranged in an array along the inner wall of the annular tube 761. A delivery tube 763 extending into the annular tube 761 is installed at the bottom of the bottom shell 71. As the piston plate 73 is pressed down, it contacts the lubricating fluid at the bottom of the bottom shell 71 and forces the lubricating fluid into the delivery tube 763. The lubricating fluid then flows into the annular tube 761 and is injected into the bottom mold 3 through the injection tube 762. This lubricates the surface of the stamped aluminum material to form an oil film, thereby preventing the aluminum material from adhering to the inner wall of the bottom mold 3 and causing the aluminum shell processing to fail.
[0036] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A stamping device for processing aluminum shells of new energy batteries, comprising support legs (2) installed at the four corners of the bottom of a processing table (1), characterized in that: Multiple bottom molds (3) are horizontally arranged on the processing table (1). A top plate (4) is installed above the processing table (1). Multiple top molds (5) that are perpendicular to the bottom molds (3) are horizontally arranged at the bottom of the top plate (4). A hydraulic cylinder (6) connected to the support structure is installed on the top of the top plate (4). Each of the multiple bottom molds (3) is equipped with a demolding mechanism (7) for automatically demolding the stamped aluminum material. A feeding mechanism (8) for moving and feeding the aluminum material during the stamping process is provided on the processing table (1).
2. The stamping device for processing aluminum shells of new energy batteries according to claim 1, characterized in that: The depth of the multiple bottom molds (3) gradually increases, and the length of the corresponding top mold (5) is also adapted to the depth of its corresponding bottom mold (3).
3. The stamping device for processing aluminum shells of new energy batteries according to claim 1, characterized in that: The demolding mechanism (7) includes a bottom shell (71) installed at the bottom of the bottom mold (3). Multiple compression springs (72) are arrayed on the bottom wall of the bottom shell (71). A piston plate (73) is slidably connected to the inner wall of the bottom shell (71) on the top of the compression springs (72). A connecting rod (74) extending into the bottom mold (3) is installed on the top of the piston plate (73). A lifting plate (75) adapted to the inner wall of the bottom mold (3) is installed on the top of the connecting rod (74). A lubrication assembly (76) for lubricating and cooling the surface of the stamped aluminum material is provided inside the bottom shell (71).
4. The stamping device for processing aluminum shells of new energy batteries according to claim 3, characterized in that: The lubrication assembly (76) includes a lubricant injected into the bottom shell (71), an annular tube (761) is installed on the outside of the bottom mold (3) and at the bottom of the processing table (1), a plurality of injection tubes (762) extending into the bottom mold (3) are arranged along the inner wall of the annular tube (761), and an infusion tube (763) extending into the annular tube (761) is installed at the bottom of the bottom shell (71).
5. The stamping device for processing aluminum shells of new energy batteries according to claim 1, characterized in that: The feeding mechanism (8) includes guide rails (81) installed on both sides of the top of the processing table (1). An electric slide table (82) is slidably connected on the guide rails (81). Multiple mounting seats (83) corresponding to the bottom mold (3) are installed on the top of the electric slide table (82). An electric push rod (84) is installed on each mounting seat (83). The free end of the electric push rod (84) passes through the mounting seat (83) and is fitted with a clamping plate (85). A rubber pad (86) is installed on the outside of the clamping plate (85).
6. The stamping device for processing aluminum shells of new energy batteries according to claim 1, characterized in that: The top plate (4) is equipped with guide ear plates (91) at all four corners, and the processing table (1) is equipped with limit guide posts (92) at all four corners that are compatible with and perpendicular to the through holes opened on the guide ear plates (91).