Integrated punch forming equipment for battery pack shell of new energy automobile

Abstract

The invention relates to the technical field of battery pack shell processing, in particular to new energy automobile battery pack shell integrated punch forming equipment. Comprising a bottom plate, a workbench is installed at the upper end of the bottom plate, a portal frame fixedly connected with the workbench is erected above the workbench, a male die unit is arranged at the lower end of a horizontal section of the portal frame, a female die unit is arranged at the upper end of the workbench, and a limiting assembly used for circumferentially limiting a plate is arranged at the upper end of the workbench. The limiting assembly is adopted for conducting centering alignment and circumferential limiting on a plate before stamping, and it can be guaranteed that the plate is kept at the fixed and accurate position in the stamping process; the contact area of the male die unit and the female die unit with a punch-formed shell can be reduced through the inward shrinkage assembly and the outward expansion assembly, the friction force and the adsorption force between the male die unit and the shell and between the female die unit and the shell are reduced, the situation that the shell deforms due to external force in the demolding process is avoided, a smoother demolding path can be formed easily, and the demolding quality is improved. The forming quality and the demolding efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of battery pack shell processing, and in particular to an integrated stamping and forming device for a battery pack shell of a new energy vehicle. Background Art

[0002] The battery pack housing of new energy vehicles is a structural component that protects and contains energy storage devices such as lithium-ion batteries in electric vehicles. It not only prevents external impact, moisture and dust from damaging the battery, but also plays a key role in thermal management, electromagnetic shielding, and in some cases, heat dissipation. The battery pack housing is commonly manufactured using one-piece stamping technology. This molding technology uses a mold to stamp a metal sheet into the required complex shape at one time, which can significantly improve production efficiency, reduce costs, and help ensure the strength and sealing of the housing. Common battery pack housing shapes include: Fig.10 shown.

[0003] However, the following problems still exist in the process of stamping sheet metal into battery pack shells: 1. Sheets with insufficient stability are easily affected by the stamping force and shifted during the stamping process, resulting in errors in the size of the molded product. At the same time, since it is impossible to ensure that the placement of the sheet metal is the same and accurate each time, the consistency and reliability of the battery pack shell molding quality will be affected.

[0004] 2. After stamping, the shell will fit tightly between the die and the punch. Affected by friction and adsorption, it is not easy to quickly reset the punch and remove the shell while maintaining the shape of the shell. Especially during the pushing process, the shell is prone to deformation or damage. The molding quality and demolding efficiency need to be improved.

[0005] Therefore, in order to solve the problems existing in the stamping process of the battery pack shell, the present invention provides an integrated stamping and forming device for the battery pack shell of a new energy vehicle. Summary of the invention

[0006] The present invention provides an integrated stamping and forming device for the shell of a new energy vehicle battery pack, comprising a base plate, a workbench is installed at the upper end of the base plate, a gantry frame fixedly connected to the workbench is set above the workbench, a punch unit is set at the lower end of the horizontal section of the gantry frame, and a die unit is set at the upper end of the workbench; a limit assembly for circumferentially limiting the plate is set at the upper end of the workbench, the limit assembly comprises two limit plates distributed on the left and right and both slidably connected to the upper end surface of the workbench, and a limit groove is set on the side close to the left and right limit plates; the punch unit comprises a T-shaped pressing block arranged below the horizontal section of the gantry frame, four inner grooves are set at the upper end of the horizontal section of the T-shaped pressing block, and a An inverted L-shaped inner moving plate, the upper end of the horizontal section of the T-shaped pressure block is provided with an inward retraction component for controlling the synchronous movement of the four inner moving plates along the corresponding inner grooves, and connecting parts are provided between the left and right limit plates and the T-shaped pressure block; the die unit includes a rectangular groove opened at the center of the upper end of the workbench and matched with the vertical section of the T-shaped pressure block, the rectangular groove is located between the left and right limit plates, the four inner side walls of the rectangular groove are provided with outward moving grooves, the outward moving plates are slidably installed inside the outward moving grooves, the bottom wall of the rectangular groove is provided with a bottom groove, and a top plate is provided inside the bottom groove, and an outward expansion component for controlling the synchronous movement of the four outward moving plates along the corresponding outward moving grooves is provided at the lower end of the workbench, and a linkage is provided between the top plate and the outward expansion component.

[0007] In one possible implementation, a moving component for driving the left and right limit plates to move synchronously toward each other is provided at the upper end of the workbench, and the moving component includes rotating gears rotatably installed on the front and rear sides of the upper end surface of the workbench, and the two rotating gears are distributed front and back about the rectangular groove, and the front and rear sides of the rotating gears are meshed with racks connected to the workbench for left and right sliding. The rack close to the side of the rectangular groove is fixedly connected to the limit plate on the right, and the remaining racks are fixedly connected to the limit plate on the left, and the left end of the limit plate on the left is connected to the telescopic section of the automatic telescopic rod installed on the left vertical section of the gantry.

[0008] In one possible implementation, the connecting member includes a guide groove plate installed on the upper end of the limit plate, and two connecting rods distributed front and rear are arranged on the guide groove plate. A pin shaft is rotatably installed at the lower end of the connecting rod and is connected to the guide groove plate for front and back sliding. The end of the pin shaft away from the center of the workbench passes through the guide groove plate and is installed with a connecting block connected to the limit plate for front and back sliding. A connecting spring is connected between the front and rear opposite connecting blocks. The upper ends of the front and rear connecting rods are hinged on the same cross bar, and the left and right sides of the horizontal section of the T-shaped pressure block are provided with cross holes that are plugged into and matched with the corresponding cross bars.

[0009] In a possible implementation manner, a vertical insertion hole communicating with the horizontal insertion hole is formed at the upper end of the T-shaped pressing block corresponding to the position of the horizontal insertion hole. A vertical rod is slidably installed up and down in the vertical insertion hole. A limiting hole for inserting and cooperating with the vertical rod is formed on the cross rod. An inclined surface for cooperating with the end of the cross rod is arranged at the lower end of the vertical rod. A clamping plate is installed at the upper end of the vertical rod. A telescopic spring sleeved outside the vertical rod is connected between the clamping plate and the upper end surface of the T-shaped pressing block.

[0010] In a possible implementation manner, guide columns installed at the upper end of the workbench are arranged on both the left and right sides of the limiting component. Side plates located above the cross rod and slidably connected with the corresponding guide columns up and down are installed on both the left and right sides of the horizontal section of the T-shaped pressing block. A buffer spring sleeved outside the guide column is connected between the side plate and the upper end surface of the workbench. A push plate is installed at the upper end of the T-shaped pressing block. The upper end of the push plate is connected with the pushing section of a hydraulic cylinder installed on the horizontal section of the gantry.

[0011] In a possible implementation manner, all four inner grooves communicate with the vertical section of the T-shaped pressing block and are respectively located on the four side surfaces of the vertical section. The inner contraction component includes a connecting rod one hinged at one end of the horizontal section of each of the four inner moving plates close to the center of the T-shaped pressing block. The other ends of the connecting rod one are hinged on the same cross-shaped moving plate located above the T-shaped pressing block. The push plate is located above the cross-shaped moving plate. An elastic telescopic rod is connected between the cross-shaped moving plate and the T-shaped pressing block. Support plates slidably connected with the corresponding guide columns up and down are installed at both the left and right ends of the cross-shaped moving plate. An auxiliary spring is connected between the support plate and the corresponding side plate.

[0012] In a possible implementation manner, pushing components for pushing the corresponding support plates to move up and down before the T-shaped pressing block moves up and resets after stamping are arranged on the sides close to each other of the left and right vertical sections of the gantry. The pushing component includes a column installed at the lower end of the horizontal section of the gantry. A U-shaped plate is arranged on the side of the guide column close to the corresponding column. The U-shaped plate is slidably installed on the upper end of the support plate. The lower end of the support plate is connected with the pushing section of an automatic push rod. The lower end of the fixed section of the automatic push rod is installed with a support seat slidably matched with the column. Baffles for limiting the corresponding support seats are installed at both the left and right ends of the workbench.

[0013] In a possible implementation manner, the outward expansion component includes an extension rod installed on the side of the outer moving plate away from the center of the rectangular groove. A strip-shaped groove for slidingly connecting with the extension rod and communicating with the outer moving groove is formed on the workbench. A connecting rod two is hinged at the lower end of the side of the extension rod away from the outer moving plate. An avoidance groove two for avoiding the connecting rod two is formed at the lower end of the workbench. A bottom column is arranged in the middle below the workbench. The upper end of the bottom column is in a frustum shape. Adjustment grooves are circumferentially and uniformly arranged on the outer side of the bottom column. The end of the connecting rod two away from the extension rod is slidably matched with the corresponding adjustment groove.

[0014] In one possible implementation, the linkage part includes a push rod installed at the lower end of the push plate, a side through groove is provided on the front side of the push rod, a side column is provided in the side through groove for sliding up and down, mounting blocks fixedly connected to the upper end surface of the bottom column are installed at both the front and rear ends of the side column, a cylindrical through groove is provided on the bottom column for sliding up and down with the push rod, an avoidance circular hole is provided at the lower end of the workbench for avoiding the bottom column, and the lower end of the bottom column is connected to the pushing section of the electric push rod installed on the upper end of the bottom plate.

[0015] In one possible implementation, triangular blocks are installed at both ends of the front and rear ends of the side where the left and right limit plates are close to each other, the inclined surfaces of the front and rear triangular blocks are opposite, and rollers evenly arranged on the left and right are rotatably installed on the inner wall of the upper side of the limit groove.

[0016] The beneficial effects of the present invention are as follows: 1. The present invention adopts a limiting component to perform centering and circumferential limiting on the plate before stamping, which can ensure that the plate maintains a fixed and accurate position during the stamping process, increase the stability of the plate, avoid the plate from shifting due to the impact of the stamping pressure, reduce the product dimensional error caused by the plate shift, increase the stamping quality of the plate, and improve the geometric accuracy and consistency of the final product.

[0017] 2. The present invention completes the locking cooperation between the limit assembly and the punch unit through the connecting piece, which can not only prevent the limit assembly from loosening and affecting the stability of the plate, but also increase the reliability and limit stability of the limit assembly. The connecting piece with a triangular structure can also provide stable support and guidance for the punch unit during stamping, which is beneficial to improving the overall structural stability of the punch unit and the limit assembly.

[0018] 3. The male die unit and the female die unit in the present invention can respectively reduce the contact area with the outer shell after stamping through the inward-retracting component and the outward-expanding component, reduce the friction and adsorption force between the male die unit, the female die unit and the outer shell, avoid deformation of the outer shell due to external force during demolding, help form a smoother demolding path, and improve molding quality and demolding efficiency.

[0019] In addition to the technical problems solved by the embodiments of the present invention described above, the technical features that constitute the technical solutions, and the beneficial effects brought about by the technical features of these technical solutions, other technical problems that can be solved by an integrated stamping and forming device for a new energy vehicle battery pack shell provided in an embodiment of the present application, other technical features included in the technical solutions, and the beneficial effects brought about by these technical features will be further described in detail in the specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the main stereoscopic structure of the present invention.

[0022] Figure 2 for Figure 1 sectional view of .

[0023] Figure 3 It is a three-dimensional structural schematic diagram of the limiting component and the moving component of the present invention.

[0024] Figure 4 It is a schematic diagram of the partial three-dimensional structure of the male mold unit and the connecting piece of the present invention.

[0025] Figure 5 for Figure 4 A magnified schematic diagram of area A in the middle.

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the retracted component of the present invention.

[0027] Figure 7 It is a cross-sectional view of the die unit of the present invention.

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the external expansion component of the present invention.

[0029] Fig. 9 It is a partial cross-sectional view of the linkage member of the present invention.

[0030] Fig.10 It is a schematic diagram of the three-dimensional structure of the battery pack shell after stamping.

[0031] In the figure: 1. Bottom plate; 2. Workbench; 21. Female die unit; 211. Rectangular groove; 212. Outer shift groove; 213. Outer shift plate; 214. Stripping plate; 215. Extension rod; 216. Second connecting rod; 217. Bottom column; 218. Adjusting groove; 219. Ejector rod; 221. Side through groove; 222. Side column; 223. Cylindrical through groove; 224. Electric push rod; 3. Gantry; 31. Male die unit; 311. T-shaped pressing block; 312. Inner side groove; 313. Inner shift plate; 314. First connecting rod; 315. Cross moving plate; 316. Elastic telescopic rod; 321. Column; 322. C-shaped plate; 323. Automatic push rod; 324. Support; 4. Limit component; 41. Limit plate; 412. Limit groove; 413. Roller; 414. Rotating gear; 415. Rack; 416. Automatic telescopic rod; 421. Guide groove plate; 422. Connecting rod; 423. Connecting block; 424. Connecting spring; 425. Cross bar; 426. Horizontal jack; 427. Vertical rod; 428. Limit hole; 429. Telescopic spring; 431. Guide post; 432. Side plate; 433. Buffer spring; 434. Push plate; 435. Hydraulic cylinder; 436. Support plate; 437. Auxiliary spring. Specific embodiments

[0032] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described below, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0033] Please refer to Figure 1 , Figure 2 and Fig.10 , a device for integrally stamping and forming the housing of a new energy vehicle battery pack, including a bottom plate 1, a workbench 2 is installed at the upper end of the bottom plate 1, a gantry 3 fixedly connected thereto is erected above the workbench 2, a male die unit 31 is provided at the lower end of the horizontal section of the gantry 3, and a female die unit 21 is provided at the upper end of the workbench 2.

[0034] Please refer to Figure 1-Figure 4 , a limit component 4 for circumferentially limiting the plate is provided at the upper end of the workbench 2. The limit component 4 includes two limit plates 41 distributed left and right and both slidably connected to the left and right end faces of the upper end of the workbench 2. Limit grooves 412 are opened on the sides of the two limit plates 41 close to each other. Triangular blocks are installed at the front and rear ends of the sides of the two limit plates 41 close to each other, and the inclined surfaces of the front and rear triangular blocks face each other. Rollers 413 are rotatably installed on the upper side inner wall of the limit groove 412 and are evenly arranged left and right.

[0035] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Fig.10 A moving assembly for driving the left and right limit plates 41 to move synchronously toward each other is provided at the upper end of the workbench 2. The moving assembly includes a rotating gear 414 rotatably installed on both the front and rear sides of the upper end surface of the workbench 2. The front and rear sides of the rotating gear 414 are meshed with racks 415 connected to the workbench 2 for left and right sliding. The rack 415 close to the center of the workbench 2 is fixedly connected to the limit plate 41 on the right, and the remaining racks 415 are fixedly connected to the limit plate 41 on the left. The left end of the limit plate 41 on the left is connected to the telescopic section of the automatic telescopic rod 416 installed on the left vertical section of the gantry 3.

[0036] In the manufacturing process of battery pack casing, suitable sheet materials are usually selected as raw materials and processed into predetermined shapes and sizes (such as Fig.10 As shown in the figure, specifically, the plate can be placed on the upper end of the workbench 2 first. In order to ensure that the plate is stably stamped and formed at the accurate position and to prevent the plate from being offset due to the stamping pressure, the plate can be limited circumferentially. During this process, the electric automatic telescopic rod 416 can push the limiting plate 41 on the left side to move to the right, and the rack 415 on the side away from the center of the workbench 2 moves to the right synchronously. Under the action of the rotating gear 414, the rack 415 on the side close to the center of the workbench 2 drives the limiting plate 41 on the right side to move to the left synchronously, and the left and right limiting plates 41 move synchronously toward each other and gradually approach each other. For a plate placed near the upper end of the workbench 2, if the plate on the upper end of the workbench 2 is slightly tilted, the triangular block can use the inclined surface to fine-tune the position of the plate when moving with the limiting plate 41 to ensure that the plate is in a suitable state. In addition, the limiting groove 412 gradually moves to cooperate with the plate and finally presses against the end of the plate. The roller 413 helps to reduce the friction between the plate and the limiting groove 412, ensuring that the plate can move relative to the limiting groove 412 during subsequent stamping. With the cooperation of the limiting plate 41, the triangular block and the limiting groove 412, the plate is accurately positioned at the upper end of the workbench 2.

[0037] See also Figure 1 , Figure 2 , Figure 4 and Figure 6The male mold unit 31 includes a T-shaped pressing block 311 arranged below the horizontal section of the gantry 3, and the T-shaped pressing block 311 matches the shape of the battery pack shell to be formed. Four inner grooves 312 are opened at the upper end of the horizontal section of the T-shaped pressing block 311, and the four inner grooves 312 are all connected to the vertical section of the T-shaped pressing block 311 and are respectively located on the four sides of the vertical section. An inverted L-shaped inner moving plate 313 is slidably installed in the inner groove 312, and an inward retraction component for controlling the synchronous movement of the four inner moving plates 313 along the corresponding inner grooves 312 is provided at the upper end of the horizontal section of the T-shaped pressing block 311. The inward retraction component includes a connecting rod 314 hinged at one end of the horizontal section of the four inner moving plates 313 close to the center of the T-shaped pressing block 311, and the other end of the connecting rod 314 is hinged on the same cross movable plate 315 located above the T-shaped pressing block 311, and an elastic telescopic rod 316 is connected between the cross movable plate 315 and the T-shaped pressing block 311.

[0038] See also Figure 1-Figure 6 , a connecting piece is arranged between the two left and right limit plates 41 and the T-shaped pressure block 311, and the connecting piece includes a guide groove plate 421 installed at the upper end of the limit plate 41, and two connecting rods 422 distributed front and back are arranged on the guide groove plate 421, and a pin shaft connected to the guide groove plate 421 for sliding forward and backward is rotatably installed at the lower end of the connecting rod 422, and a connecting block 423 connected to the limit plate 41 for sliding forward and backward is installed after the end of the pin shaft away from the center of the workbench 2 passes through the guide groove plate 421, and a connecting spring 424 is connected between the front and rear opposite connecting blocks 423, and the upper ends of the front and rear two connecting rods 422 are hinged on the same cross bar 425, and the T-shaped pressure block 311 is water The left and right sides of the flat section are provided with horizontal holes 426 that are plugged into the corresponding horizontal rod 425. The position of the upper end of the T-shaped pressure block 311 corresponding to the horizontal hole 426 is provided with a vertical hole connected to the horizontal hole 426. A vertical rod 427 is installed in the vertical hole for sliding up and down. The horizontal rod 425 is provided with a limiting hole 428 that is plugged into the vertical rod 427. The lower end of the vertical rod 427 is provided with an inclined surface that cooperates with the end of the horizontal rod 425. A clamping plate is installed on the upper end of the vertical rod 427. A telescopic spring 429 mounted on the outside of the vertical rod 427 is connected between the clamping plate and the upper end surface of the T-shaped pressure block 311. The two connecting rods 422 corresponding to the same horizontal rod 425 form an inverted V-shaped structure.

[0039] In the process of the left and right limiting plates 41 moving synchronously toward each other, the guide groove plate 421 drives the connecting rod 422, the connecting block 423, the connecting spring 424 and the cross bar 425 to move synchronously with the corresponding limiting plate 41 and gradually approach the T-shaped pressing block 311, and the cross bar 425 is gradually inserted into the corresponding cross insertion hole 426. After being inserted into the cross insertion hole 426, the cross bar 425 can press the inclined surface of the lower end of the vertical rod 427 to make the vertical rod 427 move upward along the vertical insertion hole, and the telescopic spring 429 is synchronously extended with the upward movement of the vertical rod 427. When the limiting hole 428 on the cross bar 425 moves to the position of the vertical rod 427, the vertical rod 427 can be retracted. Under the action of spring 429, it moves downward and is inserted into the limiting hole 428. The cross bar 425 can be fixed in the cross insertion hole 426 through the cooperation between the vertical rod 427 and the limiting hole 428. When the connection between the cross bar 425 and the vertical rod 427 needs to be released later, the card plate and the vertical rod 427 can be pulled upward with the help of external force to make the vertical rod 427 disengage from the limiting hole 428 on the cross bar 425, ensuring that the cross bar 425 can be smoothly moved out of the cross insertion hole 426. The connection and locking between the limiting plate 41 and the T-shaped pressure block 311 are completed using a connecting piece, which can effectively improve the stability of the position of the limiting plate 41 and increase the limiting effect of the limiting component 4.

[0040] In addition, in the initial state, the front and rear connecting rods 422 on the same guide groove plate 421 are in a state of being close to each other under the action of the pin shaft, the connecting block 423 and the connecting spring 424, and the connecting spring 424 is in a naturally stretched state. When the subsequent T-shaped pressure block 311 moves downward, the cross bar 425 can be driven to move downward, and the front and rear connecting rods 422 hinged to the cross bar 425 can drive the pin shaft to move synchronously in the opposite direction along the guide groove plate 421. The angle between the front and rear connecting rods 422 gradually increases, and the connecting block 423 moves synchronously with the corresponding pin shaft, and the connecting spring 424 extends synchronously therewith. The stable triangular structure formed by the front and rear connecting rods 422 and the guide groove plate 421 can provide stable support and guidance for the T-shaped pressure block 311 when it moves downward, which is beneficial to improving the overall structural stability of the punch unit 31 and the limiting assembly 4.

[0041] See also Figure 1 , Figure 2 and Figure 4, guide posts 431 are installed at the upper end of the workbench 2 on both the left and right sides of the limit component 4. Side plates 432 are installed on both the left and right sides of the horizontal section of the T-shaped pressing block 311. The side plates 432 are located above the cross bar 425 and are slidably connected to the corresponding guide posts 431 up and down. A buffer spring 433 sleeved outside the guide post 431 is connected between the side plate 432 and the upper end surface of the workbench 2. A push plate 434 is installed at the upper end of the T-shaped pressing block 311 and is located above the cross moving plate 315. The upper end of the push plate 434 is connected to the pushing section of a hydraulic cylinder 435 installed on the horizontal section of the gantry 3. Support plates 436 slidably connected to the corresponding guide posts 431 up and down are installed at both the left and right ends of the cross moving plate 315. An auxiliary spring 437 is connected between the support plate 436 and the corresponding side plate 432.

[0042] After the positioning of the sheet is completed, the cooperation between the punch unit 31 and the die unit 21 can be used to perform stamping on the sheet. Specifically, the hydraulic cylinder 435 can push the T-shaped pressing block 311 to move downward through the push plate 434. The T-shaped pressing block 311 drives the retraction component to move downward synchronously. The side plate 432 synchronously compresses the buffer spring 433 and moves downward along the guide post 431. The guide post 431 and the buffer spring 433 can guide, support and buffer the downward movement of the T-shaped pressing block 311. The retraction component drives the left and right support plates 436 to move downward synchronously along the corresponding guide posts 431, so as to improve the stability of the retraction component. Under the action of the elastic telescopic rod 316 and the auxiliary spring 437, the cross moving plate 315 and the support plates 436 on its left and right sides are respectively kept at a certain distance from the T-shaped pressing block 311 and the side plate 432. At this time, the inner moving plate 313 fits on the outside of the corresponding inner groove 312, and the inner moving plate 313 and the T-shaped pressing block 311 form a complete punch shape.

[0043] Please refer to Figure 1 , Figure 2 and Figure 4 , pushing components for pushing the corresponding support plates 436 to move up and down before the T-shaped pressing block 311 moves up and resets after stamping are arranged on the sides close to each other of the left and right vertical sections of the gantry 3. The pushing component includes a column 321 installed at the lower end of the horizontal section of the gantry 3. A C-shaped plate 322 is arranged on the side of the guide post 431 close to the corresponding column 321. The C-shaped plate 322 is slidably installed on the upper end of the support plate. The lower end of the support plate is connected to the pushing section of an automatic push rod 323. The lower end of the fixed section of the automatic push rod 323 is installed with a support 324 that slidably cooperates with the column 321. Baffles for limiting the corresponding supports 324 are installed at both the left and right ends of the workbench 2. Before stamping, the C-shaped plate 322 is located below the support plate 436.

[0044] After the T-shaped pressing block 311 moves downward to complete the stamping and forming of the plate, the T-shaped pressing block 311 does not move upward and reset immediately. At this time, the C-shaped plate 322 is aligned with the corresponding support plate 436. Then, an external force can be used to push the C-shaped plate 322 in the direction of the support plate 436, so that the support plate 436 is clamped between the upper and lower horizontal sections of the C-shaped plate 322, completing the connection between the support plate 436 and the C-shaped plate 322. Then, the automatic push rod 323 can push the corresponding support plate 436 downward through the C-shaped plate 322. The cross moving plate 315 moves synchronously with the left and right support plates 436. The elastic telescopic rod 316 and the auxiliary spring 437 are compressed synchronously. The four connecting rods one 314 hinged to the cross moving plate 315 are simultaneously subjected to downward pressure, pushing the corresponding inner moving plate 313 to retract along the inner groove 312 away from the inner wall of the formed outer shell, thereby reducing the contact area between the T-shaped pressing block 311 and the formed outer shell, reducing the friction between the outer shell and the T-shaped pressing block 311, facilitating the subsequent upward movement of the T-shaped pressing block 311 to quickly separate from the formed outer shell, but not affecting the shape of the formed outer shell; When the T-shaped pressing block 311 moves upward and resets later, because the support plate 436 and the C-shaped plate 322 remain connected, and the elastic telescopic rod 316 and the auxiliary spring 437 are in the minimum compression state, the overall inner contraction assembly and the pushing member move upward synchronously, but the four inner moving plates 313 still need to remain in the retracted state until the T-shaped pressing block 311 disengages from the concave die unit 21. Then, the C-shaped plate 322 is reset again by an external force and moves downward and resets integrally with the automatic push rod 323. After the connection between the C-shaped plate 322 and the support plate 436 is released, under the cooperation of the resilience of the elastic telescopic rod 316 and the auxiliary spring 437, the cross moving plate 315 and the inner moving plate 313 are reset.

[0045] Please refer to Figure 1 、 Figure 2 、 Figure 7 、 Figure 8 and Fig. 9The concave die unit 21 includes a rectangular groove 211 opened at the center of the upper end of the workbench 2 and matched with the vertical section of the T-shaped pressing block 311. The rectangular groove 211 is located between the left and right limit plates 41. The four inner side walls of the rectangular groove 211 are all provided with outward displacement grooves 212, and an outward displacement plate 213 is slidably installed inside the outward displacement groove 212. The bottom wall of the rectangular groove 211 is provided with a bottom groove, and a top plate 214 is arranged inside the bottom groove. The lower end of the workbench 2 is provided with an outward expansion component that controls the four outward displacement plates 213 to move synchronously along the corresponding outward displacement grooves 212. The outward expansion component includes the outward displacement plate 213 away from the rectangular groove. An extension rod 215 is installed on one side of the center of the shaped groove 211, and a strip groove is provided on the workbench 2 which is slidably connected with the extension rod 215 and connected with the outward displacement groove 212. A second connecting rod 216 is hinged at the lower end of the side of the extension rod 215 away from the outward displacement plate 213, and a second avoidance groove for avoiding the second connecting rod 216 is provided at the lower end of the workbench 2. A bottom column 217 is arranged in the middle part below the workbench 2, and the upper end of the bottom column 217 is in a frustum shape. The outer side of the bottom column 217 is provided with adjustment grooves 218 evenly arranged in the circumferential direction, and the end of the second connecting rod 216 away from the extension rod 215 slides in cooperation with the corresponding adjustment groove 218.

[0046] See also Figure 1 , Figure 2 , Figure 7 , Figure 8 , Fig. 9 and Fig.10 A linkage part is arranged between the ejector plate 214 and the external expansion component, and the linkage part includes a ejector rod 219 installed at the lower end of the ejector plate 214, a side through groove 221 is provided on the front side of the ejector rod 219, a side column 222 is provided in the side through groove 221 for sliding up and down, and mounting blocks fixedly connected to the upper end surface of the bottom column 217 are installed at both the front and rear ends of the side column 222, a cylindrical through groove 223 is provided on the bottom column 217 for sliding up and down with the ejector rod 219, an avoidance circular hole is provided at the lower end of the workbench 2 for avoiding the bottom column 217, and the lower end of the bottom column 217 is connected to the pushing section of the electric push rod 224 installed at the upper end of the bottom plate 1.

[0047] During the downward movement of the T-shaped pressing block 311, the vertical section of the T-shaped pressing block 311 can press the plate limited at the upper end of the workbench 2 into the rectangular groove 211, and the end of the plate moves relative to the limiting plate 41. Under the cooperation of the T-shaped pressing block 311 and the rectangular groove 211, the plate is stamped into the required shell (the battery pack shell after stamping is as shown in FIG. Fig.10As shown), during this process, the four outward moving plates 213 are all located on one side of the outward moving groove 212 close to the center of the rectangular groove 211, and the top plate 214 is located in the bottom groove. The rectangular groove 211 and the outward moving plate 213 form a complete concave mold shape. After the punch unit 31 is away from the stamped shell, the electric push rod 224 can push the bottom column 217 to move upward. Since the upper end of the bottom column 217 is in a truncated cone shape, the bottom column 217 can simultaneously push the corresponding connecting rod 216 to open outward through the circumferentially evenly arranged adjustment grooves 218. When the connecting rod 216 is opened outward, it can drive the corresponding extension rod 215 to move outward along the strip groove. The extension rod 215 can drive the corresponding outward moving plate 213 to move along the outward moving groove 212 to away from the outer wall of the formed shell, thereby reducing the contact area between the rectangular groove 211 and the formed shell, and reducing the friction and adsorption force between the two, so as to facilitate the subsequent shell to be quickly and stably pushed out, thereby improving the molding quality and demolding efficiency.

[0048] When the bottom column 217 moves upward, the side column 222 can be driven by the mounting block to move upward along the side groove 221 on the top rod 219, and the top rod 219 gradually slides with the cylindrical groove 223 on the bottom column 217. When the outer moving plate 213 moves away from the center of the rectangular groove 211, the second connecting rod 216 just moves along the corresponding adjustment groove 218 to the vertical section of the bottom column 217, and the side column 222 just moves to the top wall of the side groove 221. Then, the bottom column 217 can be pushed upward by the electric push rod 224. Since the second connecting rod 216 keeps matching with the adjustment groove 218 of the vertical section of the bottom column 217, the outer moving plate 213 always keeps In the current position state, at the same time, the bottom column 217 can push the top rod 219 to move upward through the cooperation between the mounting block, the side column 222 and the side through groove 221, and the top rod 219 moves upward synchronously with the top rod 219 and finally pushes the formed shell out of the rectangular groove 211, and then the formed shell can be removed, and the subsequent bottom column 217 moves down and resets, and the connecting rod 216 moves along the vertical section of the adjusting groove 218, and the top rod 219 and the top rod 219 move down and reset by gravity. When the connecting rod 216 moves to the inclined section of the adjusting groove 218, the connecting rod 216 pushes the outward moving plate 213 to reset, and then resets the limit assembly 4 to prepare for the subsequent stamping and forming of the plate.

[0049] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "install", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, an integral connection, or a sliding connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated stamping and forming device for a new energy vehicle battery pack housing, comprising a base plate (1), a workbench (2) being mounted on the upper end of the base plate (1), and a gantry (3) being fixedly connected to the workbench (2) being mounted above the workbench (2), characterized in that: A male die unit (31) is disposed at the lower end of the horizontal section of the gantry (3), and a female die unit (21) is disposed at the upper end of the workbench (2); The upper end of the workbench (2) is provided with a limiting assembly (4) for circumferentially limiting the plate, the limiting assembly (4) comprising two limiting plates (41) distributed on the left and right and both slidably connected to the upper end surface of the workbench (2), and a limiting groove (412) is provided on the adjacent sides of the left and right limiting plates (41); The male mold unit (31) comprises a T-shaped pressing block (311) arranged below the horizontal section of the gantry (3); four inner grooves (312) are provided at the upper end of the horizontal section of the T-shaped pressing block (311); an inverted L-shaped inner moving plate (313) is slidably installed in the inner groove (312); an inner retracting component for controlling the synchronous movement of the four inner moving plates (313) along the corresponding inner grooves (312) is provided at the upper end of the horizontal section of the T-shaped pressing block (311); and connecting pieces are provided between the left and right limiting plates (41) and the T-shaped pressing block (311); The die unit (21) comprises a rectangular groove (211) which is provided at the center of the upper end of the workbench (2) and matches the vertical section of the T-shaped pressing block (311); the rectangular groove (211) is located between the left and right limit plates (41); the four inner side walls of the rectangular groove (211) are provided with outward displacement grooves (212); an outward displacement plate (213) is slidably installed inside the outward displacement groove (212); the bottom wall of the rectangular groove (211) is provided with a bottom groove; a top plate (214) is arranged inside the bottom groove; an outward expansion component for controlling the synchronous movement of the four outward displacement plates (213) along the corresponding outward displacement grooves (212) is arranged at the lower end of the workbench (2); and a linkage is arranged between the top plate (214) and the outward expansion component.

2. The integrated stamping and forming equipment for the battery pack housing of a new energy vehicle according to claim 1, characterized in that: The upper end of the workbench (2) is provided with a moving assembly for driving the left and right limit plates (41) to move synchronously toward each other, the moving assembly comprising rotating gears (414) rotatably mounted on both the front and rear sides of the upper end surface of the workbench (2), the two rotating gears (414) are distributed front and rear about the rectangular groove (211), the front and rear sides of the rotating gears (414) are meshed with racks (415) connected to the workbench (2) for left and right sliding, the rack (415) close to the side of the rectangular groove (211) is fixedly connected to the limit plate (41) located on the right, and the remaining racks (415) are fixedly connected to the limit plate (41) located on the left, and the left end of the limit plate (41) located on the left is connected to the telescopic section of an automatic telescopic rod (416) installed on the left vertical section of the gantry (3).

3. The integrated stamping and forming equipment for the new energy vehicle battery pack housing according to claim 1 is characterized in that: The connecting member comprises a guide groove plate (421) mounted on the upper end of the limit plate (41), two connecting rods (422) distributed front and rear are arranged on the guide groove plate (421), a pin shaft rotatably mounted on the lower end of the connecting rod (422) and connected to the guide groove plate (421) for front and rear sliding, an end of the pin shaft away from the center of the workbench (2) passes through the guide groove plate (421) and is mounted with a connecting block (423) connected to the limit plate (41) for front and rear sliding, a connecting spring (424) is connected between the front and rear opposite connecting blocks (423), the upper ends of the front and rear connecting rods (422) are hinged on the same cross bar (425), and the left and right sides of the horizontal section of the T-shaped pressure block (311) are provided with cross plug holes (426) that are plugged and matched with the corresponding cross bar (425).

4. The integrated stamping and forming equipment for the new energy vehicle battery pack housing according to claim 3 is characterized in that: A vertical insertion hole connected to the horizontal insertion hole (426) is provided at a position corresponding to the horizontal insertion hole (426) at the upper end of the T-shaped pressure block (311), and a vertical rod (427) is slidably installed in the vertical insertion hole. A limiting hole (428) is provided on the horizontal rod (425) and is plugged into and matched with the vertical rod (427). An inclined surface that matches the end of the horizontal rod (425) is provided at the lower end of the vertical rod (427). A clamping plate is installed at the upper end of the vertical rod (427), and a telescopic spring (429) sleeved on the outside of the vertical rod (427) is connected between the clamping plate and the upper end surface of the T-shaped pressure block (311).

5. The integrated stamping and forming equipment for the new energy vehicle battery pack housing according to claim 3 is characterized in that: The left and right sides of the limit assembly (4) are both provided with guide columns (431) installed on the upper end of the workbench (2); the left and right sides of the horizontal section of the T-shaped pressure block (311) are both provided with side plates (432) located above the cross bar (425) and connected to the corresponding guide columns (431) in an up-and-down sliding manner; a buffer spring (433) sleeved on the outside of the guide columns (431) is connected between the side plates (432) and the upper end surface of the workbench (2); a push plate (434) is installed on the upper end of the T-shaped pressure block (311); the upper end of the push plate (434) is connected to the pushing section of a hydraulic cylinder (435) installed on the horizontal section of the gantry (3).

6. The integrated stamping and forming equipment for the new energy vehicle battery housing according to claim 5, characterized in that: The four inner grooves (312) are all connected to the vertical section of the T-shaped pressure block (311) and are respectively located on the four sides of the vertical section. The retracting component includes a connecting rod (314) hinged at one end of the horizontal section of the four inner moving plates (313) close to the center of the T-shaped pressure block (311). The other end of the connecting rod (314) is hinged on the same cross movable plate (315) located above the T-shaped pressure block (311). The push plate (434) is located above the cross movable plate (315). An elastic telescopic rod (316) is connected between the cross movable plate (315) and the T-shaped pressure block (311). Support plates (436) connected to the corresponding guide columns (431) for upward and downward sliding are installed at both left and right ends of the cross movable plate (315). An auxiliary spring (437) is connected between the support plate (436) and the corresponding side plate (432).

7. The integrated stamping and forming equipment for the new energy vehicle battery housing according to claim 6, characterized in that: On each side of the vertical sections of the gantry (3) close to each other, there is a pushing member for pushing the corresponding support plate (436) to move up and down before the T-shaped pressing block (311) moves up and returns to its original position after stamping. The pushing member includes a column (321) installed at the lower end of the horizontal section of the gantry (3). On one side of the guiding column (431) close to the corresponding column (321), there is a U-shaped plate (322). The U-shaped plate (322) is slidably installed left and right on the upper end of the support plate. The lower end of the support plate is connected to the pushing section of the automatic push rod (323). The lower end of the fixed section of the automatic push rod (323) is installed with a support (324) that slidably cooperates with the column (321) up and down. Baffles for limiting the corresponding supports (324) are installed at both left and right ends of the workbench (2).

8. The integrated stamping and forming equipment for the new energy vehicle battery housing according to claim 1, characterized in that: The outward expansion assembly includes an extension rod (215) installed on the side of the outward movement plate (213) away from the center of the rectangular groove (211). A strip-shaped groove that is slidably connected to the extension rod (215) and communicates with the outward movement groove (212) is formed on the workbench (2). A second connecting rod (216) is hinged to the lower end of the side of the extension rod (215) away from the outward movement plate (213). An avoidance groove two for avoiding the second connecting rod (216) is formed at the lower end of the workbench (2). A bottom column (217) is arranged in the middle below the workbench (2). The upper end of the bottom column (217) is in a frustum shape. Adjustment grooves (218) that are circumferentially and evenly arranged are formed on the outer side of the bottom column (217). The end of the second connecting rod (216) away from the extension rod (215) slidably cooperates with the corresponding adjustment groove (218).

9. The integrated stamping and forming equipment for the battery pack housing of a new energy vehicle according to claim 8, characterized in that: The linkage member includes a ejector rod (219) installed at the lower end of the ejector plate (214). A side through groove (221) is formed on the front side of the ejector rod (219). A side column (222) is slidably arranged up and down in the side through groove (221). Installation blocks fixedly connected to the upper end face of the bottom column (217) are installed at both front and rear ends of the side column (222). A cylindrical through groove (223) that slidably cooperates with the ejector rod (219) is formed on the bottom column (217). An avoidance round hole for avoiding the bottom column (217) is formed at the lower end of the workbench (2). The lower end of the bottom column (217) is connected to the pushing section of an electric push rod (224) installed on the upper end of the bottom plate (1).

10. The new energy vehicle battery pack housing integrated stamping and forming equipment according to claim 1, characterized in that: Triangular blocks are installed at both front and rear ends of the side of the left and right limiting plates (41) close to each other. The inclined surfaces of the front and rear triangular blocks face each other. Rollers (413) that are evenly arranged left and right are rotatably installed on the upper inner wall of the limiting groove (412).

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