Blade battery aluminum shell forming die and using method thereof

Abstract

The invention relates to the technical field of battery shell forming dies, and particularly discloses a blade battery aluminum shell forming die and a using method thereof. A vane; and a plugging member. The two long edges and the two short edges move inwards through the four second telescopic pieces, meanwhile, the first side plates and the second side plates are sequentially switched, and the size of a rectangular frame formed by the two long edges, the two short edges and the four first side plates or the four second side plates is gradually decreased, so that the size of a female die is gradually decreased, the female die is matched with a plurality of male dies of different sizes, and the machining efficiency is improved. The aluminum plate can be stretched in a plurality of stages in one concave die, so that the position of the aluminum shell does not need to be changed for many times, the position of the aluminum shell relative to the concave die is always unchanged, the inaccurate positioning of the aluminum shell and the concave die is effectively avoided, the forming failure of the aluminum shell during stretching is effectively avoided, and the condition of defective products is effectively avoided.

Description

Technical Field

[0001] This invention belongs to the field of battery casing molding technology, and particularly relates to a blade battery aluminum casing molding die and its usage method. Background Technology

[0002] The blade battery gets its name from its long and thin shape. It adopts a stacked structure and ceramic coating technology. Through innovative design, the "module" step can be omitted during assembly, which significantly improves space utilization and achieves the goal of accommodating more cells in the same space.

[0003] In the production process of blade batteries, the blade battery casing is mainly made of aluminum. During processing, the round aluminum plate is subjected to multiple rough drawing and multiple fine drawing before the edges are cut to form the square aluminum casing of the blade battery. For example, the main technical means of the power battery aluminum shell one-out-two stamping and stretching device with patent publication number CN217432740U is as follows: During production, S1: Each mold is in the open state, and the upper mold moves upward to the upper vertex set by the equipment; S2: The first robot arm puts the square aluminum shell blank into the rough drawing mold, the second robot arm takes out the square aluminum shell processed by the rough drawing mold and puts it into the fine drawing mold, the third robot arm takes out the square aluminum shell processed by the fine drawing mold and puts it into the trimming mold, and the fourth robot arm takes out the square aluminum shell trimmed by the trimming mold and puts it into the output conveyor belt for output; S3: The stamping equipment drives the upper mold of each mold to move downward, so that the rough drawing mold performs rough drawing processing on the material inside, and the trimming mold performs trimming processing on the material inside. Then, the stamping equipment drives the upper mold of each mold to move upward and reset; S2 and S3 are repeated to perform continuous one-out-two forming processing. According to the applicant's analysis, the drawback of this technical solution is that the above solution obtains an aluminum shell of a specified size by stretching the aluminum shell in stages. However, during the stage stretching process, the aluminum shell needs to be changed in position multiple times. This may result in inaccurate positioning of the aluminum shell after changing positions. During the stretching process, the edge of the aluminum shell port may be directly stamped, resulting in the failure of aluminum shell forming and the occurrence of defective products. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a blade battery aluminum shell forming mold and its usage method. This solves the technical problem that existing technologies require frequent changes to the position of the aluminum shell during the step-by-step stretching process, leading to inaccurate positioning after the aluminum shell is changed, which in turn causes aluminum shell forming failure and defective products.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] A blade battery aluminum shell forming mold includes a frame, several punches of different sizes, and a platform. The mold further includes:

[0007] The die includes two long sides and two short sides, both ends of which are inclined surfaces. When the two long sides and two short sides overlap, they form a rectangular frame. Four telescopic components are installed on the platform, and the output ends of the four telescopic components are respectively connected to the outer surfaces of the two long sides and two short sides.

[0008] A cross plate is provided on the platform, and a cross plate is installed in the through hole. The two long sides and two short sides are slidably installed on the four support plates of the cross plate. A push plate is provided at the center of the cross plate, and a telescopic component is installed at the bottom of the push plate.

[0009] A sealing component is installed between the long side and the short side. The sealing component includes a first side plate and a second side plate. The first side plate and the second side plate are used to fill the gap between the long side and the short side. The thickness of the first side plate is greater than the thickness of the second side plate. The bottom of the first side plate is connected to a connector, and the connector is connected to a push-pull component.

[0010] As a preferred embodiment of the above technical solution, the inner sides of both the first and second side plates are concave right-angled plates, and the cross plate is provided with corners between it and the adjacent long and short sides. A blocking block is provided on the first side plate and a blocking block is provided on the second side plate. The size of the blocking block is larger than the size of the blocking block. Both the blocking block and the blocking block are used to seal the corners.

[0011] As a preferred embodiment of the above technical solution, guide grooves are provided on the inclined surfaces of both the long and short sides, and guide blocks are provided on both sides of the second side plate. When the second side plate is located between the long and short sides and the two long sides and the two short sides are closed, the guide blocks are located in the guide grooves. The guide grooves are provided with a horizontal undetermined area, an inclined area one, a positioning area, an inclined area two, and a vertical area from top to bottom. An elastic element is installed on the top of the first side plate, and the second side plate is elastically slidably connected to the first side plate through the elastic element.

[0012] As a preferred embodiment of the above technical solution, several sets of oiling components are installed on the inner sides of both the long and short sides, and the oiling components include:

[0013] The oil tank has several oil tanks opened in both the long and short sides, and the oil tanks store lubricant.

[0014] The oiling plate has several L-shaped embedding grooves on the inner edges of its long and short sides. The oiling plate is rotatably installed between the embedding grooves. The oiling plate is located at the right angle of the embedding groove. When the oiling plate is in a vertical state, it is flush with the inner wall of the long or short side. When the oiling plate is in a vertical state, it is flush with the top of the long or short side.

[0015] Two oil-leaking plates are provided between the oil tank and the embedded groove.

[0016] As a preferred embodiment of the above technical solution, two oil-absorbing plates are provided on the inner side of the oiling plate, and the two oil-absorbing plates correspond to two oil-draining plates. When the oil-absorbing plates come into contact with the oil-draining plates, they will absorb the lubricant in the oil tank through the oil-draining plates.

[0017] As a preferred embodiment of the above technical solution, horizontal oil grooves are provided on the inner walls of both the long and short sides. The oil grooves are located below the embedded grooves, and when the oiling plate is in a vertical state, the bottom of the oiling plate is located in the oil grooves.

[0018] As a preferred embodiment of the above technical solution, clamping components are installed on both the long side and the short side, and the clamping components include:

[0019] A sleeve, which is fixed to the outer wall of the long or short side by a connecting bracket;

[0020] The sleeve has a clamping plate, and an elastic rod is slidably installed inside the sleeve. The other end of the elastic rod is fitted with a clamping plate.

[0021] A cylindrical groove, wherein a plurality of cylindrical grooves are formed at the top of both the long and short sides, the cylindrical grooves are located on the side of the embedded groove, and a plurality of flow guide grooves are formed inside the long and short sides, and a flow guide cover is provided at the top of both the long and short sides, the flow guide grooves are connected to the flow guide cover, and a conduit is connected to the flow guide cover, the conduit being connected to the sleeve;

[0022] A piston is slidably installed in the cylindrical groove. A push rod is provided on the top of the piston. An extrusion plate is provided on the side of the oiling plate. When the oiling plate slowly rotates from a vertical state to a horizontal state, the extrusion plate slowly approaches the push rod and extrudes the push rod, causing the piston to move downward.

[0023] A method for using a blade battery aluminum casing forming mold, the method being applied to the blade battery aluminum casing forming mold as described above, the method comprising the following steps:

[0024] Step S1: Place the aluminum plate to be processed above the die, then move the frame down to move the largest punch down to stretch the aluminum plate and perform rough stretching.

[0025] Step S2: The push plate pushes the roughly drawn aluminum shell above the die using the telescopic component 1. Then, the push-pull component and the connecting component pull down the side plate 1, causing the side plate 2 to move into the position between the long and short sides. Next, the two long sides and two short sides are pushed inward by several telescopic components 2. At this time, the guide blocks on both sides of the side plate 1 gradually enter the guide groove. When the inclined surfaces of the long and short sides contact the side surfaces of the side plate 2, the side plate 2 continues to move down. Guided by the guide groove, the side plate 2 moves inward to fill the gap between the long and short sides. Finally, the frame is moved down, causing the second largest punch to move down and stretch the aluminum shell, further stretching the aluminum shell.

[0026] Step S3: The push plate is pushed by the telescopic component one to push the further stretched aluminum shell above the die, and the side plate two is moved down to the bottom of the platform. Then, the two long sides and two short sides are pushed inward by several telescopic components two. At this time, the two long sides and two short sides are combined to form a complete rectangular frame. Finally, the frame is moved down, so that the smallest punch moves down to stretch the aluminum shell, and the aluminum shell is stretched further.

[0027] The beneficial effects of this invention are as follows:

[0028] 1. In this invention, four telescopic components 2 move the two long sides and two short sides inward, while simultaneously switching side plates 1 and 2 in sequence, so that the size of the rectangular frame formed by the two long sides, two short sides, and four side plates 1 or 4 side plates 2 gradually decreases. This makes the size of the die gradually decrease. With the help of several punches of different sizes, the aluminum plate can be stretched in multiple stages in one die. In this way, the aluminum shell does not need to change its position many times. The position of the aluminum shell relative to the die can remain unchanged. This effectively avoids inaccurate positioning of the aluminum shell and the die, thereby effectively avoiding the failure of the aluminum shell to be formed during stretching and effectively avoiding the occurrence of defective products.

[0029] 2. In this invention, before the aluminum shell is stretched, the aluminum shell is located at the top of the die, so that the aluminum shell will keep the oiling plate in a horizontal state. The lubricant attached to the oiling plate will be applied to the bottom of the aluminum shell. When the aluminum shell is stretched, the aluminum shell moves down and the oiling plate rotates slowly. When the outer wall of the aluminum shell enters the die, the oiling plate is in a vertical state, and the lubricant attached to the oiling plate will be applied to the outer wall of the aluminum shell. In this way, the friction between the aluminum shell and the die can be reduced during stretching, thereby improving the forming effect of the aluminum shell.

[0030] 3. In this invention, lubricant is applied to all four sides of the bottom of the aluminum shell. This way, during the stretching process, the bottom of the aluminum shell will be evenly pressed into the die, thereby effectively preventing the aluminum shell from shifting during stretching, effectively preventing inaccurate positioning of the aluminum shell and the die during stretching, effectively preventing the aluminum shell from failing to form during stretching, and effectively preventing the occurrence of defective products.

[0031] 4. In this invention, when the aluminum shell moves upward and is positioned above the die, the weight of the aluminum shell causes the oiling plate to be in a horizontal state. Before the oiling plate rotates to a horizontal state, the cooperation between the extrusion plate on the oiling plate and the clamping assembly causes several clamping plates to move towards the aluminum shell. The aluminum shell can be clamped by these clamping plates, thus ensuring that the position of the aluminum shell relative to the die remains unchanged before the next stretching. During stretching, the aluminum shell moves downward along the clamping plates, thereby ensuring that the aluminum shell is not easily deviated when moving downward. This further ensures that the position of the aluminum shell relative to the die remains unchanged before and after stretching, thus ensuring accurate positioning of the aluminum shell relative to the die each time stretching, effectively avoiding forming failure of the aluminum shell during stretching, and effectively avoiding the occurrence of defective products. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0033] Figure 2 This is a schematic diagram of the structure beneath the platform;

[0034] Figure 3 This is a schematic diagram of the die and sealing component structure;

[0035] Figure 4 This is a schematic diagram of the die cavity and cross plate structure;

[0036] Figure 5 This is a schematic diagram of the sealing component structure;

[0037] Figure 6 This is a schematic diagram of the guide groove structure;

[0038] Figure 7 This is a schematic diagram of the oiling assembly structure;

[0039] Figure 8 for Figure 7 Enlarged structural diagram at point A in the middle;

[0040] Figure 9 This is a schematic diagram of the clamping component structure;

[0041] Figure 10 for Figure 9 Enlarged structural diagram at point B.

[0042] In the picture:

[0043] 1. Frame; 2. Punch; 3. Die; 31. Long side; 32. Short side; 4. Platform; 41. Through hole; 5. Sealing component; 51. Side plate one; 511. Block one; 512. Elastic component; 52. Side plate two; 521. Block two; 522. Guide block; 53. Connecting component; 54. Push-pull component; 6. Cross plate; 61. Push plate; 611. Telescopic component one; 62. Corner; 7. Oiling assembly; 71. Oil tank; 72. Embedded groove; 7 3. Oil coating plate; 731. Oil suction plate; 732. Extrusion plate; 74. Oil leakage plate; 8. Clamping assembly; 81. Connecting frame; 82. Sleeve; 83. Elastic rod; 84. Clamping plate; 85. Flow guide; 86. Conduit; 87. Cylindrical groove; 88. Flow guide groove; 89. Piston; 9. Guide groove; 91. Undetermined area; 92. Inclined area one; 93. Positioning area; 94. Inclined area two; 95. Vertical area; 10. Oil tank; 11. Telescopic component two. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] like Figures 1-6 As shown, a blade battery aluminum shell forming mold includes a frame 1, several punches 2 of different sizes, and a platform 4. The mold also includes:

[0046] The die 3 includes two long sides 31 and two short sides 32. Both ends of the long sides 31 and the short sides 32 are inclined surfaces. That is, the two long sides 31 and the two short sides 32 overlap to form a rectangular frame. Four telescopic components 11 are installed on the platform 4. The output ends of the four telescopic components 11 are respectively connected to the outer surfaces of the two long sides 31 and the two short sides 32.

[0047] A cross plate 6 and a platform 4 have through holes 41. A cross plate 6 is installed in the through holes 41. Two long sides 31 and two short sides 32 are slidably installed on the four support plates of the cross plate 6. A push plate 61 is provided at the center of the cross plate 6. A telescopic component 611 is installed at the bottom of the push plate 61.

[0048] The sealing component 5 is installed between the long side 31 and the short side 32. The sealing component 5 includes a first side plate 51 and a second side plate 52. The first side plate 51 and the second side plate 52 are used to fill the gap between the long side 31 and the short side 32. The thickness of the first side plate 51 is greater than the thickness of the second side plate 52. The bottom of the first side plate 51 is connected to a connector 53, and the connector 53 is connected to a push-pull component 54.

[0049] In practical application, this embodiment uses four telescopic components 11 to move the two long sides 31 and the two short sides 32 inward. At the same time, the side plates 1 and 2 are switched sequentially, so that the size of the rectangular frame formed by the two long sides 31, the two short sides 32 and the four side plates 1 or 2 gradually decreases. This makes the size of the die 3 gradually decrease. With the help of several punches 2 of different sizes, the aluminum plate can be stretched in multiple stages in one die 3. In this way, the aluminum shell does not need to change its position many times. The position of the aluminum shell relative to the die 3 can always remain unchanged. This effectively avoids inaccurate positioning of the aluminum shell and the die 3, thereby effectively avoiding the failure of the aluminum shell to be formed during stretching and effectively avoiding the occurrence of defective products.

[0050] Both long sides 31 and two short sides 32 move along the support plate on the cross plate 6. This ensures that the center position of the rectangle formed by the two long sides 31 and two short sides 32 remains unchanged after the movement, only the outer dimensions become smaller. This ensures that the position of the aluminum shell relative to the die 3 remains unchanged after stretching, thereby further avoiding inaccurate positioning of the aluminum shell and the die 3.

[0051] Furthermore, the inner sides of side plate 1 51 and side plate 2 52 are both concave right-angle plates. The cross plate 6 is provided with a corner 62 between it and the adjacent long side 31 and short side 32. A blocking block 1 511 is provided on side plate 1 51, and a blocking block 2 521 is provided on side plate 2 52. The size of blocking block 1 511 is larger than the size of blocking block 2 521. Both blocking block 1 511 and blocking block 2 521 are used to block the corner 62.

[0052] Guide grooves 9 are provided on the inclined surfaces of the long side 31 and the short side 32. Guide blocks 522 are provided on both sides of the second side plate 52. When the second side plate 52 is located between the long side 31 and the short side 32 and the two long sides 31 and the two short sides 32 are closed, the guide blocks 522 are located in the guide grooves 9. The guide grooves 9 are provided with a horizontal waiting area 91, an inclined area 1 92, a positioning area 93, an inclined area 2 94 and a vertical area 95 from top to bottom. An elastic element 512 is installed on the top of the first side plate 51. The second side plate 52 is elastically slidably connected to the first side plate 51 through the elastic element 512.

[0053] In practical application, the two long sides 31, the two short sides 32 and the four side plates 51 form the largest size of the die 3, the two long sides 31, the two short sides 32 and the four side plates 52 form the second largest size of the die 3, and the two long sides 31 and the two short sides 32 form the smallest size of the die 3. This allows for multi-stage stretching of the aluminum shell.

[0054] Initially, the gap between the long side 31 and the short side 32 is filled by the side plate 51. After the aluminum shell is stretched, the sealing member 5 is pulled down by the push-pull member 54 and the connecting member 53, causing the four side plates 51 to move down and the four side plates 52 to be positioned between the long side 31 and the short side 32. Then, the two long sides 31 and the two short sides 32 move inward. As the long sides 31 and the short sides 32 move inward, the guide groove 9 slowly moves towards the guide block 522 until the guide block 522 enters the waiting area 91 in the guide groove 9. At this time, the inclined surfaces of the long sides 31 and the short sides 32 abut against the two sides of the side plate 52 respectively. Then, the side plate 52 continues to move down, causing the guide block 522 to move along the inclined area 92 to the side plate 52. At positioning zone 93, side plate 2 52 moves downwards and towards the inner cavity of die 3. When guide block 522 is located at positioning zone 93, the right-angled side of side plate 2 52 is connected to the inner wall of long side 31 and short side 32, and block block 2 521 is blocked at corner 62. This makes the two long sides 31, the two short sides 32, the four side plates 2 52, the four block blocks 2 521, the cross plate 6 and the push plate 61 form a complete die 3, and the size of die 3 becomes smaller. This ensures that the size of die 3 is accurate while it is smaller, and the stability of die 3 is also ensured while it is smaller, thus ensuring the stretching quality of aluminum shell.

[0055] like Figure 3 , Figure 7 and Figure 8 As shown, several sets of oiling components 7 are installed on the inner sides of both the long side 31 and the short side 32. The oiling components 7 include:

[0056] Oil tank 71, with several oil tanks 71 opened in both the long side 31 and the short side 32, and the oil tanks 71 store lubricant;

[0057] The oiling plate 73 has several L-shaped embedding grooves 72 on the inner edge of the long side 31 and the short side 32. The oiling plate 73 is rotatably installed between the embedding grooves 72. The oiling plate 73 is located at the right angle of the embedding groove 72. When the oiling plate 73 is in a vertical state, the oiling plate 73 is flush with the inner wall of the long side 31 or the short side 32. When the oiling plate 73 is in a vertical state, the oiling plate 73 is flush with the top of the long side 31 or the short side 32.

[0058] Two oil leak plates 74 are provided between the oil tank 71 and the embedded groove 72.

[0059] Two oil-absorbing plates 731 are provided on the inner side of the oiling plate 73. The two oil-absorbing plates 731 correspond to the two oil-draining plates 74. When the oil-absorbing plates 731 come into contact with the oil-draining plates 74, they will absorb the lubricant in the oil tank 71 through the oil-draining plates 74.

[0060] In practical application, before the aluminum shell is stretched, the aluminum shell is located at the top of the die 3, so that the oiling plate 73 is in a horizontal state. The lubricant attached to the oiling plate 73 will be applied to the bottom of the aluminum shell. When the aluminum shell is stretched, the aluminum shell moves down and the oiling plate 73 rotates slowly. When the outer wall of the aluminum shell enters the die 3, the oiling plate 73 is in a vertical state, and the lubricant attached to the oiling plate 73 will be applied to the outer wall of the aluminum shell. In this way, the friction between the aluminum shell and the die 3 can be reduced during stretching, thereby improving the forming effect of the aluminum shell.

[0061] Whether the oiling plate 73 is in a horizontal or vertical state, the oil-absorbing plate 731 on the oiling plate 73 will transfer the lubricant in the oil tank 71 to the oiling plate 73 through the oil-draining plate 74, thereby ensuring that there is always lubricant on the oiling plate 73, and ensuring that the outer wall and bottom of the aluminum shell are always coated with lubricant during the stretching process, further improving the forming effect of the aluminum shell.

[0062] Lubricant is applied to all four sides of the bottom of the aluminum shell. This ensures that the bottom of the aluminum shell is evenly pressed into the die 3 during the stretching process, effectively preventing the aluminum shell from shifting during stretching, preventing inaccurate positioning of the aluminum shell and the die 3 during stretching, preventing the aluminum shell from failing to form during stretching, and effectively preventing the occurrence of defective products.

[0063] Furthermore, horizontal oil grooves 10 are provided on the inner walls of both the long side 31 and the short side 32. The oil grooves 10 are located below the embedded groove 72, and when the oiling plate 73 is in a vertical state, the bottom of the oiling plate 73 is located in the oil groove 10.

[0064] In practical application, during the stretching process of the aluminum shell, when the aluminum shell moves down or up, the excess lubricant on the outer wall of the aluminum shell will enter the oil groove 10. The lubricant in the oil groove 10 will be absorbed again by the oiling plate 73. This can reduce the loss of lubricant and allow the excess lubricant to be reused, thereby reducing processing costs.

[0065] It should be noted that the aluminum shell located above the oil tank 10 is the excess part to be cut after the aluminum shell is formed. In this way, the deformation of the aluminum shell at the oil tank 10 will not affect the final forming effect of the aluminum shell.

[0066] like Figure 3 , Figure 7 , Figure 9 and Figure 10 As shown, clamping components 8 are installed on both the long side 31 and the short side 32. The clamping components 8 include:

[0067] Sleeve 82 is fixed to the outer wall of long side 31 or short side 32 by connecting bracket 81;

[0068] A clamping plate 84 and a sleeve 82 are slidably installed with an elastic rod 83, and the other end of the elastic rod 83 is installed with a clamping plate 84.

[0069] The cylindrical groove 87 has several cylindrical grooves 87 on the top of the long side 31 and the short side 32. The cylindrical grooves 87 are located on the side of the embedded groove 72. Several guide grooves 88 are also provided in the long side 31 and the short side 32. A guide shroud 85 is provided on the top of the long side 31 and the short side 32. The guide grooves 88 are connected to the guide shroud 85. A conduit 86 is connected to the guide shroud 85. The conduit 86 is connected to the sleeve 82.

[0070] Piston 89 is slidably installed in cylindrical groove 87. Piston 89 is provided with push rod at top. Oiling plate 73 is provided with extrusion plate 732 on side. When oiling plate 73 slowly rotates from vertical to horizontal, extrusion plate 732 slowly approaches push rod and extrudes push rod to make piston 89 move downward.

[0071] In practical application, when the aluminum shell moves upward and is positioned above the die 3, the oiling plate 73 is in a horizontal state due to the weight of the aluminum shell. Before the oiling plate 73 rotates to a horizontal state, the extrusion plate 732 on the oiling plate 73 will slowly press the piston 89 downward. The piston 89 moves downward along the cylindrical groove 87, thereby guiding the air in the cylindrical groove 87 into the sleeve 82 through the guide groove 88, the guide cover 85, and the guide tube 86, thereby increasing the pressure inside the sleeve 82. This will cause the elastic rod 83 to drive the clamping plate. The plate 84 moves towards the aluminum shell and is clamped by several clamping plates 84. This ensures that the position of the aluminum shell relative to the die 3 remains unchanged before the next stretching. During stretching, the aluminum shell moves downward along the clamping plates 84, which ensures that the aluminum shell is not easily deviated when moving downward. This further ensures that the position of the aluminum shell relative to the die 3 remains unchanged before and after stretching, so that the aluminum shell is accurately positioned with the die 3 during each stretching, effectively avoiding the failure of forming the aluminum shell during stretching and effectively avoiding the occurrence of defective products.

[0072] A method for using a blade battery aluminum casing forming mold, the method being applied to the blade battery aluminum casing forming mold as described above, the method comprising the following steps:

[0073] Step S1: Place the aluminum plate to be processed above the die 3, then move the frame 1 down to move the largest punch 2 down to stretch the aluminum plate and perform rough stretching on the aluminum plate;

[0074] Step S2: The push plate 61 pushes the roughly drawn aluminum shell above the die 3 through the telescopic component 1 611. Then, the push-pull component 54 and the connecting component 53 pull down the side plate 1 51, causing the side plate 1 51 to move down and the side plate 2 52 to enter the position between the long side 31 and the short side 32. Then, the two long sides 31 and the two short sides 32 are pushed inward by several telescopic components 2 11. At this time, the guide blocks 522 on both sides of the side plate 1 51 gradually enter the guide groove 9. When the inclined surfaces of the long side 31 and the short side 32 contact the side of the side plate 2 52 respectively, the side plate 2 52 continues to move down. Guided by the guide groove 9, the side plate 2 52 moves inward to fill the gap between the long side 31 and the short side 32. Finally, the frame 1 is moved down, causing the second largest punch 2 to move down and stretch the aluminum shell, further stretching the aluminum shell.

[0075] Step S3: The push plate 61 pushes the further stretched aluminum shell above the die 3 through the telescopic component 611, and the side plate 52 moves down below the platform 4. Then, the two long sides 31 and two short sides 32 continue to move inward through several telescopic components 11. At this time, the two long sides 31 and two short sides 32 combine to form a complete rectangular frame. Finally, the frame 1 is moved down, so that the smallest punch 2 moves down to stretch the aluminum shell, further stretching the aluminum shell.

[0076] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed invention.

Claims

1. A blade battery aluminum shell forming mold, comprising a frame (1), several punches (2) of different sizes, and a platform (4), characterized in that, The mold also includes: The die (3) includes two long sides (31) and two short sides (32). Both ends of the long sides (31) and the short sides (32) are inclined surfaces. That is, the two long sides (31) and the two short sides (32) overlap to form a rectangular frame. Four telescopic components (11) are installed on the platform (4). The output ends of the four telescopic components (11) are respectively connected to the outer surfaces of the two long sides (31) and the two short sides (32). A cross plate (6) is provided on the platform (4), and a through hole (41) is provided in the through hole (41). The two long sides (31) and the two short sides (32) are slidably installed on the four support plates of the cross plate (6). A push plate (61) is provided at the center of the cross plate (6), and a telescopic component (611) is installed at the bottom of the push plate (61). A sealing component (5) is installed between the long side (31) and the short side (32). The sealing component (5) includes a first side plate (51) and a second side plate (52). The first side plate (51) and the second side plate (52) are used to fill the gap between the long side (31) and the short side (32). The thickness of the first side plate (51) is greater than the thickness of the second side plate (52). The bottom of the first side plate (51) is connected to a connector (53), and the connector (53) is connected to a push-pull component (54).

2. The blade battery aluminum shell forming mold according to claim 1, characterized in that, The inner sides of the first side plate (51) and the second side plate (52) are both concave right-angled plates. The cross plate (6) has a corner (62) between it and the adjacent long side (31) and short side (32). The first side plate (51) is provided with a blocking block (511), and the second side plate (52) is provided with a blocking block (521). The size of the first blocking block (511) is larger than the size of the second blocking block (521). Both the first blocking block (511) and the second blocking block (521) are used to seal the corner (62).

3. The blade battery aluminum shell forming mold according to claim 2, characterized in that, Guide grooves (9) are provided on the inclined surfaces of the long side (31) and the short side (32). Guide blocks (522) are provided on both sides of the second side plate (52). When the second side plate (52) is located between the long side (31) and the short side (32) and the two long sides (31) and the two short sides (32) are closed, the guide blocks (522) are located in the guide groove (9). The guide groove (9) is provided with a horizontal undetermined area (91), an inclined area one (92), a positioning area (93), an inclined area two (94), and a vertical area (95) from top to bottom. An elastic element (512) is installed on the top of the first side plate (51). The second side plate (52) is elastically slidably connected to the first side plate (51) through the elastic element (512).

4. The blade battery aluminum shell forming mold according to claim 1, characterized in that, Several sets of oiling components (7) are installed on the inner sides of both the long side (31) and the short side (32), and the oiling components (7) include: Oil tank (71), a plurality of oil tanks (71) are provided in both the long side (31) and the short side (32), and the oil tanks (71) store lubricant; The oiling plate (73) has several L-shaped embedding grooves (72) on the inner edge of the long side (31) and the short side (32). The oiling plate (73) is rotatably installed between the embedding grooves (72). The oiling plate (73) is located at the right angle of the embedding groove (72). When the oiling plate (73) is in a vertical state, the oiling plate (73) is flush with the inner wall of the long side (31) or the short side (32). When the oiling plate (73) is in a vertical state, the oiling plate (73) is flush with the top of the long side (31) or the short side (32). Oil leak plates (74): Two oil leak plates (74) are provided between the oil tank (71) and the embedded groove (72).

5. The blade battery aluminum shell forming mold according to claim 4, characterized in that, The inner side of the oiling plate (73) is provided with two oil-absorbing plates (731), which correspond to two oil-draining plates (74). When the oil-absorbing plates (731) come into contact with the oil-draining plates (74), they will absorb the lubricant in the oil tank (71) through the oil-draining plates (74).

6. The blade battery aluminum shell forming mold according to claim 4, characterized in that, Horizontal oil grooves (10) are provided on the inner walls of the long side (31) and the short side (32). The oil grooves (10) are located below the embedded groove (72), and when the oiling plate (73) is in a vertical state, the bottom of the oiling plate (73) is located in the oil groove (10).

7. The blade battery aluminum shell forming mold according to claim 4, characterized in that, Clamping components (8) are installed on both the long side (31) and the short side (32), and the clamping components (8) include: Sleeve (82), the sleeve (82) is fixed to the outer wall of the long side (31) or the short side (32) by a connecting bracket (81); A clamping plate (84) is provided, and an elastic rod (83) is slidably installed inside the sleeve (82). The other end of the elastic rod (83) is fitted with a clamping plate (84). A cylindrical groove (87) is provided on the top of the long side (31) and the short side (32). The cylindrical groove (87) is located on the side of the embedded groove (72). A number of guide grooves (88) are also provided in the long side (31) and the short side (32). A guide cover (85) is provided on the top of the long side (31) and the short side (32). The guide groove (88) is connected to the guide cover (85). A conduit (86) is connected to the guide cover (85). The conduit (86) is connected to the sleeve (82). The piston (89) is slidably installed in the cylindrical groove (87). The piston (89) is provided with a push rod at the top. The oiling plate (73) is provided with a squeezing plate (732) on the side. When the oiling plate (73) slowly rotates from a vertical state to a horizontal state, the squeezing plate (732) slowly approaches the push rod and squeezes the push rod to make the piston (89) move downward.

8. A method of using a blade battery aluminum casing forming mold, the method being applied to the blade battery aluminum casing forming mold as described in any one of claims 1-7 above, the method comprising the following steps: Step S1: Place the aluminum plate to be processed above the die (3), then move the frame (1) down so that the largest punch (2) moves down to stretch the aluminum plate and perform rough stretching on the aluminum plate; Step S2: The push plate (61) pushes the rough-drawn aluminum shell above the die (3) using the telescopic component (611). Then, the push-pull component (54) and the connecting component (53) pull down the side plate (51), causing the side plate (51) to move down and the side plate (52) to enter the position between the long side (31) and the short side (32). Then, the two long sides (31) and the two short sides (32) are pushed inward by several telescopic components (11). At this time, the side plate (51) The guide blocks (522) on both sides gradually enter the guide groove (9). When the inclined surfaces of the long side (31) and the short side (32) contact the side of the second side plate (52) respectively, the second side plate (52) continues to move down. Through the guidance of the guide groove (9), the second side plate (52) moves inward to fill the gap between the long side (31) and the short side (32). Finally, the frame (1) moves down, so that the second largest punch (2) moves down to stretch the aluminum shell and further stretch the aluminum shell. Step S3: The push plate (61) pushes the further stretched aluminum shell above the die (3) through the telescopic component (611), and the side plate (52) moves down below the platform (4). Then, the two long sides (31) and two short sides (32) are pushed inward by several telescopic components (11). At this time, the two long sides (31) and two short sides (32) are combined to form a complete rectangular frame. Finally, the frame (1) is moved down, and the smallest punch (2) moves down to stretch the aluminum shell, further stretching the aluminum shell.

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