A sleeve stamping die for new energy automobile parts

Abstract

The utility model relates to the technical field of automobile parts manufacturing, especially to a sleeve stamping die for new energy automobile parts, which comprises an upper die holder, a top punch mechanism fixed on the bottom surface of the upper die holder, a bottom punch mechanism fixed on the position opposite to the top punch mechanism on the lower die holder, and the top punch mechanism and the bottom punch mechanism simultaneously abut against the two symmetrical surfaces of the sleeve and punch simultaneously; a fixing mechanism and a retreat mechanism are sequentially arranged on the rear side of the bottom punch mechanism on the lower die holder; the retreat mechanism is used for quickly demolding the sleeve after punching; the fixing mechanism comprises a first spring fixed on the lower die holder, a mounting block arranged at the top end of the first spring, and a horizontal T-shaped pipe embedded in the middle of the mounting block; the T-shaped pipe is used for sleeving and positioning the sleeve; the sleeve stamping die punches synchronously through the top and bottom punches and quickly demolds through the retreat mechanism, thereby significantly improving the production efficiency, reducing the labor intensity, and solving the problem of easy jamming of the sleeve in the traditional die.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts manufacturing technology, and in particular to a sleeve stamping die for new energy vehicle parts. Background Technology

[0002] The crossbeam support sleeve is installed at both ends of the front and rear subframe crossbeams and is a key component connecting the subframe and the main frame. Its main function is to securely connect the crossbeam to the main frame and effectively disperse impact forces and dampen vibrations during vehicle operation. To facilitate quick positioning and installation with the main frame, the sleeve needs to have coaxial holes punched on its upper and lower symmetrical planes to ensure assembly accuracy and structural stability.

[0003] However, existing punching processes have significant shortcomings. They cannot achieve simultaneous punching of the upper and lower symmetrical planes of the sleeve, and suffer from drawbacks such as secondary clamping, low efficiency, and high labor intensity. Furthermore, the sleeve undergoes shrinkage deformation due to radial pressure during punching, causing it to become stuck after punching and difficult to remove from the die. Specifically, for example... Figure 10 As shown, the punching die used on existing crankshaft-type machine tools includes a groove 11, a cover 12, and a mounting post 13. In use, the sleeve to be punched is first placed in the groove 1, which matches the outer diameter of the sleeve. Then, the cover 12 is screwed onto the mounting post 13 to press the sleeve. Two holes 14 for the drill bit to pass through are symmetrically opened on both sides of the groove 1. The entire die is fixed to the punching machine's worktable using a clamp (such as a vise). The drill bit of the punching machine passes through the holes 14 sequentially, punching one side of the sleeve. After this, the die needs to be flipped and re-clamped and positioned before a second punch can be performed on the symmetrical side of the sleeve. This process cannot simultaneously punch the upper and lower symmetrical sides of the sleeve, resulting in drawbacks such as secondary clamping, low efficiency, and high labor intensity. Furthermore, during the punching process, the sleeve shrinks and deforms under radial pressure, causing it to become stuck after punching, making it difficult to remove from the groove 11.

[0004] Therefore, this application provides a sleeve stamping die for new energy vehicle parts to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to provide a sleeve stamping die for new energy vehicle parts, which solves the problems in the prior art that the sleeve cannot be punched simultaneously on the upper and lower symmetrical surfaces, resulting in secondary clamping, low efficiency, high labor intensity, and the sleeve getting stuck and difficult to remove after punching due to radial shrinkage deformation.

[0006] To solve the above-mentioned technical problems, this utility model provides a sleeve stamping die for new energy vehicle parts, including an upper die base, an upper punch mechanism fixed on the bottom surface of the upper die base, and a lower punch mechanism fixed on the lower die base opposite to the upper punch mechanism. The upper punch mechanism and the lower punch mechanism simultaneously punch the sleeve symmetrically. A fixing mechanism and a retraction mechanism are arranged sequentially on the lower die base behind the lower punch mechanism. The retraction mechanism is used to quickly demold the sleeve after punching. The fixing mechanism includes a first spring fixed on the lower die base, a mounting block is set at the top of the first spring, and a horizontal T-shaped tube is embedded in the middle of the mounting block. The T-shaped tube is used to fit and position the sleeve.

[0007] A further improvement of this utility model's technical solution is that: the upper punch mechanism includes an upper clamping plate fixed to the bottom surface of the upper mold base, and a parallel upper pressure plate arranged below the upper clamping plate; a vertically downward upper punch is fixed in the middle of the bottom surface of the upper clamping plate, and spring members are respectively arranged on both sides of the upper punch, with upper guide posts arranged on the outer sides of the two spring members; the upper guide posts can slide through the upper pressure plate and are threaded with nuts at their protruding ends; the lower ends of the spring members are fixed to the top surface of the upper pressure plate; the upper punch can slide downward through the upper arc-shaped surface arranged in the middle of the bottom surface of the upper pressure plate.

[0008] A further improvement of this utility model is that a guide sleeve is also provided on the bottom surface of the upper mold base, and the guide sleeve is provided on both sides of the upper clamping plate.

[0009] A further improvement of this utility model is that: the lower punch mechanism includes a lower clamping plate fixed to the top surface of the lower die base, and a lower pressure plate parallel to the lower clamping plate is arranged above the lower clamping plate; a vertically upward lower punch is fixed in the middle of the top surface of the lower clamping plate, and spring members are respectively arranged on both sides of the lower punch, and lower guide posts are respectively arranged on both sides of the spring members; the lower guide posts can slide through the lower pressure plate, and the upper end of the spring members is fixed to the top surface of the lower pressure plate; the lower punch can slide upward through the lower arc-shaped surface in the middle of the top surface of the lower pressure plate.

[0010] A further improvement of the present invention is that: two first springs are symmetrically arranged at intervals, and a first guide post is respectively arranged on the outer side of the two first springs. The first guide post is vertically mounted in the first through hole of the mounting block.

[0011] A further improvement of this utility model is that: a second through hole is opened horizontally through the middle of the mounting block; the small-diameter end of the T-shaped tube is inserted into the second through hole and mates with it, and the small-diameter end is threadedly connected to an air pipe plug, which is connected to an external air source; the stepped annular end face of the T-shaped tube is attached to and axially positioned on the front side wall of the mounting block; the large-diameter end of the T-shaped tube extends out of the mounting block and is located directly above the lower arc surface; a vertically penetrating guide hole is opened on the body of the T-shaped tube for positioning and guidance during punching.

[0012] A further improvement of this utility model is that the top surface of the mounting block is threaded with a set screw, and the end of the set screw abuts vertically against the outer wall of the T-shaped tube.

[0013] A further improvement of this utility model is that the retraction mechanism also includes two U-shaped grooves, which are vertically arranged and have openings facing each other. The two sides of the mounting plate are adapted to slide and connect inside the U-shaped grooves. A telescopic cylinder is fixed on the side of the mounting plate away from the mounting block. The telescopic rod of the telescopic cylinder is adapted to pass through the mounting plate and has a push plate at its end. Two push rods are fixed on the front side of the push plate. The push rods are slidably inserted into the limiting holes opened in the mounting block. The limiting holes are set on both sides of the T-shaped tube. The push rods are used to push the end face of the sleeve.

[0014] A further improvement of this utility model is that the retraction mechanism also includes a U-shaped fixing plate. The two ends of the U-shaped fixing plate are fixed to the opposing surfaces of the mounting plate and the mounting block respectively by bolts, and the U-shaped fixing plate is located above the push plate.

[0015] A further improvement of this utility model is that: two oppositely arranged inverted L-shaped parts are fixed on the lower mold base on both sides of the lower clamping plate, the upper inner folded surface of the inverted L-shaped parts abuts against the top surface of both sides of the lower pressure plate, and guide posts are provided on the lower mold base on the outer side of the two inverted L-shaped parts. When the mold is closed, the upper part of the guide post is fitted with a guide sleeve.

[0016] By adopting the above technical solution, this utility model has the following beneficial effects: 1. This utility model provides a sleeve stamping die for new energy vehicle parts. The sleeve stamping die uses an upper punch mechanism and a lower punch mechanism to simultaneously abut against the symmetrical surface of the sleeve. With the precise mold closing guidance of the guide post and guide sleeve, the upper and lower symmetrical surfaces of the sleeve are punched simultaneously. This avoids the problem of needing to flip the mold and clamp it twice in the traditional process, improves work efficiency, and reduces labor intensity. In addition, the retraction mechanism uses a telescopic cylinder to drive the push rod to push out the sleeve. Combined with the guiding effect of the T-tube, it avoids the problem of the sleeve getting stuck due to radial shrinkage deformation after punching, which makes it difficult to remove. This achieves rapid demolding, avoids jamming, and improves demolding efficiency.

[0017] 2. This utility model provides a sleeve stamping die for new energy vehicle parts. By setting a T-shaped tube, the sleeve is fitted onto the T-shaped tube during punching, forming radial support for the inner hole of the sleeve, reducing the deformation of the sleeve during punching, thereby ensuring the dimensional accuracy and quality stability of the sleeve after punching. In addition, the upper and lower arc surfaces are adapted to the shape of the sleeve to prevent stamping deviation, avoid deformation, and improve the product qualification rate.

[0018] 3. This utility model provides a sleeve stamping die for new energy vehicle parts. The sleeve stamping die is equipped with an air pipe plug that is threaded to the end of a T-shaped tube and connected to an external air pipe. After punching, compressed air is blown into the T-shaped tube through the air pipe plug to clean up the waste debris after punching. This effectively prevents the waste debris from accumulating at the punching position, avoids the impact of waste debris on punching accuracy and die life, and keeps the die clean, thereby improving production efficiency. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is an overall schematic diagram of a sleeve stamping die used for new energy vehicle parts; Figure 2 This is a schematic diagram of the structure before and after punching the casing. Figure 3 This is a schematic diagram of the structure of a stamping die for punching holes in a sleeve. Figure 4 This is a schematic diagram of the upper punch mechanism; Figure 5 This is a schematic diagram of the exploded structure of the upper punch mechanism; Figure 6 This is a schematic diagram of the lower punch mechanism; Figure 7 A structural diagram of the fixing mechanism and the retraction mechanism; Figure 8 This is a schematic diagram of the T-tube structure; Figure 9 A schematic diagram of the overall structure of the fixing mechanism and the yielding mechanism; Figure 10 This is a schematic diagram of the structure of an existing punching die; Reference numerals: 1. Sleeve; 2. Upper die base; 3. Lower die base; 4. Spring component; 5. Guide post; 21. Upper punch mechanism; 211. Upper clamping plate; 212. Upper pressure plate; 213. Upper punch; 214. Upper guide post; 215. Upper arc-shaped surface; 22. Guide sleeve; 31. Lower punch mechanism; 311. Lower clamping plate; 312. Lower pressure plate; 313. Lower punch; 314. Lower guide post; 315. Lower arc-shaped surface; 316. Inverted L-shape Components; 32, Fixing mechanism; 321, First spring; 322, Mounting block; 323, First guide post; 324, First through hole; 325, Set screw; 33, Retraction mechanism; 331, U-shaped groove; 332, Mounting plate; 333, Telescopic cylinder; 334, Push plate; 335, Push rod; 336, U-shaped fixing plate; 34, T-shaped tube; 341, Second through hole; 342, Air pipe plug; 343, Guide hole; 35, Limiting hole. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] The present invention will be further explained below with reference to specific embodiments.

[0025] like Figures 1-10As shown, this embodiment provides a sleeve stamping die for new energy vehicle parts, including an upper die base 2, an upper punch mechanism 21 fixed on the bottom surface of the upper die base 2, and a lower punch mechanism 31 fixed on the lower die base 3 at a position directly opposite to the upper punch mechanism 21. The upper punch mechanism 21 and the lower punch mechanism 31 simultaneously punch the sleeve 1 symmetrically. A fixing mechanism 32 and a retraction mechanism 33 are sequentially arranged on the lower die base 3 behind the lower punch mechanism 31. The retraction mechanism 33 is used to quickly demold the sleeve 1 after punching. The fixing mechanism 32 includes a first spring 321 fixed on the lower die base 3. A mounting block 322 is provided at the top of the first spring 321. A horizontal T-shaped tube 34 is embedded in the middle of the mounting block 322. The T-shaped tube 34 is used to fit and position the sleeve 1. The sleeve stamping die uses the upper punch mechanism 21 and the lower punch mechanism 31 to abut against the symmetrical surface of the sleeve 1, realizing synchronous punching of the upper and lower symmetrical surfaces of the sleeve 1. This avoids the problem of needing to flip the die for secondary clamping in the traditional process, improving work efficiency and reducing labor intensity. The retraction mechanism 33 drives the push rod 335 to push out the sleeve 1 through the telescopic cylinder 333. Combined with the guiding effect of the T-shaped tube 34, it avoids the problem of the sleeve 1 getting stuck due to radial shrinkage deformation after punching, which makes it difficult to remove. This achieves rapid demolding and avoids jamming, improving demolding efficiency.

[0026] like Figures 2-4 As shown, in this embodiment, the upper punch mechanism 21 includes an upper clamping plate 211 fixed to the bottom surface of the upper mold base 2, and a parallel upper pressure plate 212 disposed below the upper clamping plate 211; a vertically downward upper punch 213 is fixed in the middle of the bottom surface of the upper clamping plate 211, and spring members 4 are respectively disposed on both sides of the upper punch 213, with upper guide posts 214 respectively disposed on the outer sides of the two spring members 4; the upper guide posts 214 slidably pass through the upper pressure plate 212, and are threadedly connected to the protruding end with a nut; the lower end of the spring member 4 is fixed to the top surface of the upper pressure plate 212; the upper punch 213 slidably passes downward through the upper arc-shaped surface 215 disposed in the middle of the bottom surface of the upper pressure plate 212. In use, the upper punch mechanism 21 moves downward, and the upper arc-shaped surface 215 of the upper pressure plate 212 first comes into close contact with the upper arc-shaped surface of the sleeve 1. Because of the spring 4 installed between the upper clamping plate 211 and the upper pressure plate 212, when the upper pressure plate 212 is pressed against the upper arc surface of the sleeve 1, the spring 4 begins to compress, preventing the upper pressure plate 212 from moving further downward. Meanwhile, the upper punch 213 continues to move downward under the buffering effect of the spring 4, punching the upper arc surface of the sleeve 1. The upper guide post 214 slidably passes through the upper pressure plate 212, providing precise guidance for the up-and-down movement of the upper punch 213, ensuring that the upper punch 213 maintains vertical movement throughout the punching process, avoiding deflection, and thus guaranteeing the accuracy and quality of the punching.

[0027] like Figure 3 and Figure 6As shown, in this embodiment, the lower punch mechanism 31 includes a lower clamping plate 311 fixed to the top surface of the lower die base 3, and a lower pressure plate 312 parallel to the lower clamping plate 311 is arranged above the lower clamping plate 311; a vertically upward lower punch 313 is fixed in the middle of the top surface of the lower clamping plate 311, and spring members 4 are respectively arranged on both sides of the lower punch 313. The spring members 4 are rectangular die springs, and lower guide posts 314 are respectively arranged on both sides of the spring members 4; the lower guide posts 314 slidably penetrate the lower pressure plate 312, providing precise guidance for the up and down movement of the lower punch 313, ensuring that the punch always maintains vertical movement during the punching process, avoiding skew, thereby ensuring the accuracy and quality of punching. The upper end of the spring member 4 is fixed to the top surface of the lower pressure plate 312; the lower punch 313 slidably penetrates the lower arc-shaped surface 315 in the middle of the top surface of the lower pressure plate 312. Two first springs 321 are symmetrically arranged at intervals. The fixing mechanism 32 also includes two first guide posts 323 respectively arranged on the outer side of the first springs 321. The first guide posts 323 are vertically mounted in the first through hole 324 through the mounting block 322. A second through hole 341 is opened in the middle of the mounting block 322 in the horizontal direction. The small diameter end of the T-shaped tube 34 is inserted into the second through hole 341 and mates with it. The small diameter end is threaded to the air pipe plug 342. The air pipe plug 342 is a PC series 304 stainless steel quick-connect air pipe. The plug 342 is connected to an external air source. It can be used to blow air to clean the waste inside the T-shaped tube 34 after punching, keep the mold clean, and avoid the accumulation of waste affecting the punching quality. The stepped annular end face of the T-tube 34 is attached to and axially positioned on the front side wall of the mounting block 322; the large-diameter end of the T-tube 34 extends beyond the mounting block 322 and is located directly above the lower arc-shaped surface 315; a vertically penetrating guide hole 343 is provided on the body of the T-tube 34 for positioning and guidance during punching. The top surface of the mounting block 322 is threaded with a set screw 325, the end of which abuts vertically against the outer wall of the T-tube 34 to fix the T-tube 34 and prevent it from loosening. In use, the sleeve 1 is fitted onto the T-tube 34; the upper punch mechanism 21 moves downward and presses against the sleeve 1, causing the sleeve 1 to move downward and apply a downward force to the T-tube 34; the T-tube 34 transmits this force to the mounting block 322, causing the first spring 321 at the bottom of the mounting block 322 to be compressed; under the compression of the first spring 321, the T-tube 34 drives the sleeve 1 to continue moving downward until the lower arc surface of the sleeve 1 is in close contact with the lower arc surface 315 of the lower pressure plate 312. Subsequently, the upper punch mechanism 21 continues to move downward, pushing the lower pressure plate 312 downward, and the downward movement of the lower pressure plate 312 causes the spring 4 to begin to compress; under the buffering effect of the spring, the lower pressure plate 312 moves downward, causing the lower punch 313 to be exposed relative to the lower pressure plate 312, punching a hole in the lower arc surface of the sleeve 1. The lower guide post 314 slidably passes through the lower pressure plate 312, providing precise guidance for the up and down movement of the lower punch 313, ensuring that the punch always maintains vertical movement during the punching process, avoiding skewness, and thus ensuring the accuracy and quality of punching.

[0028] Furthermore, guide posts 5 are provided on the outer sides of the two inverted L-shaped parts 316 on the lower die base 3; in the mold closing state, the upper part of the guide post 5 is appropriately fitted into the guide sleeve 22 to achieve precise guidance and alignment between the upper die base 2 and the lower die base 3. The upper inner folded surface of the inverted L-shaped part 316 is in close contact with the top surfaces of both sides of the lower pressure plate 312 to limit the return stroke of the lower pressure plate 312 after completing the pressing action, prevent abnormal rebound, and ensure the stability of the position of the lower pressure plate 312 during the punching process.

[0029] like Figure 7 and Figure 9 As shown, in this embodiment, the retraction mechanism 33 further includes two U-shaped grooves 331. The two U-shaped grooves 331 are vertically arranged and their openings face each other. The two sides of the mounting plate 332 are adapted to slide within the U-shaped grooves 331. A telescopic cylinder 333 is fixed on the side of the mounting plate 332 away from the mounting block 322. The telescopic rod of the telescopic cylinder 333 is adapted to pass through the mounting plate 332 and a push plate 334 is provided at its end. Two push rods 335 are fixed on the front side of the push plate 334. The push rods 335 are slidably inserted into the limiting holes 35 opened in the mounting block 322. The limiting holes 35 are provided on both sides of the T-shaped tube 34. The push rods 335 are used to push the end face of the sleeve 1. Two oppositely arranged inverted L-shaped parts 316 are fixed on the lower mold base 3 on both sides of the lower clamping plate 311. The inner folded surface of the upper part of the inverted L-shaped parts 316 is in close contact with the top surface of both sides of the lower pressure plate 312. After punching, the telescopic cylinder 333 is activated, and its telescopic rod extends outward, pushing the push plate 334 forward. The push plate 334 drives the push rod 335 forward, and the push rod 335 pushes the end face of the sleeve 1 through the limiting hole 35, causing the sleeve 1 to disengage from the T-tube 34. This avoids the sleeve 1 from getting stuck due to radial shrinkage deformation after punching, achieving rapid demolding, avoiding jamming, and improving demolding efficiency. The retraction mechanism 33 also includes a U-shaped fixing plate 336. The two ends of the U-shaped fixing plate 336 are fixed to the facing surfaces of the mounting plate 332 and the mounting block 322 respectively by bolts, and the U-shaped fixing plate 336 is located above the push plate 334. The U-shaped fixing plate 336 rigidly connects the mounting plate 332 and the mounting block 322, limiting the vertical displacement of the push plate 334, ensuring that the push rod 335 accurately pushes the end face of the sleeve 1 in the horizontal direction, eliminating the risk of jamming caused by uneven demolding load.

[0030] This utility model also provides the operating principle of a sleeve stamping die for new energy vehicle parts: During operation, the sleeve 1 is first fitted onto the T-tube 34, and then the upper punch mechanism 21 moves downward and presses against the sleeve 1. The sleeve 1 moves downward and applies a downward force to the T-tube 34. This force is transmitted through the T-tube 34 to the mounting block 322, causing the first spring 321 at the bottom of the mounting block 322 to be compressed. Under the compression of the first spring 321, the T-tube 34 drives the sleeve 1 to continue moving downward until the lower arc surface of the sleeve 1 abuts against the lower arc surface 315 of the lower pressure plate 312. At this time, the upper punch mechanism 21 continues to move downward, pushing the lower pressure plate 312 downward. The downward movement of the lower pressure plate 312 causes the spring 4 to begin to compress. Under the buffering effect of the spring 4, the lower pressure plate 312 continues to move downward, causing the lower punch 313 to be exposed relative to the lower pressure plate 312, punching a hole in the lower arc surface of the sleeve 1. Meanwhile, the upper punch 213 continues to move downward under the buffering action of the spring 4, punching the upper arc surface of the sleeve 1. After punching is completed, the upper punch mechanism 21 and the lower punch mechanism 31 reset. At this time, the telescopic cylinder 333 is activated, and its telescopic rod extends outward, pushing the push plate 334 forward. The push plate 334 drives the push rod 335 forward, and the push rod 335 pushes the end face of the sleeve 1 through the limiting hole 35, causing the sleeve 1 to disengage from the T-tube 34, thereby achieving rapid demolding and avoiding the problem of the sleeve 1 getting stuck due to radial shrinkage deformation after punching, thus improving demolding efficiency.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sleeve stamping die for new energy vehicle parts, characterized in that, The upper die base (2) is fixed with an upper punch mechanism (21) on its bottom surface. The lower die base (3) is fixed with a lower punch mechanism (31) at a position directly opposite to the upper punch mechanism (21). The upper punch mechanism (21) and the lower punch mechanism (31) simultaneously punch the sleeve (1) symmetrically. A fixing mechanism (32) and a retraction mechanism (33) are sequentially arranged on the lower die base (3) behind the lower punch mechanism (31). The retraction mechanism (33) is used to quickly demold the sleeve (1) after punching. The fixing mechanism (32) includes a first spring (321) fixed on the lower die base (3). A mounting block (322) is set at the top of the first spring (321). A horizontal T-shaped tube (34) is embedded in the middle of the mounting block (322). The T-shaped tube (34) is used to fit and position the sleeve (1).

2. The sleeve stamping die for new energy vehicle parts according to claim 1, characterized in that, The upper punch mechanism (21) also includes an upper clamping plate (211) fixed to the bottom surface of the upper mold base (2), and a parallel upper pressure plate (212) is provided below the upper clamping plate (211); a vertically downward upper punch (213) is fixed in the middle of the bottom surface of the upper clamping plate (211), and spring members (4) are provided on both sides of the upper punch (213), and upper guide posts (214) are provided on the outer sides of the two spring members (4); the upper guide post (214) can slide through the upper pressure plate (212), and a nut is threaded to the protruding end; the lower end of the spring member (4) is fixed to the top surface of the upper pressure plate (212); the upper punch (213) can slide downward through the upper arc surface (215) provided in the middle of the bottom surface of the upper pressure plate (212).

3. A sleeve stamping die for new energy vehicle parts according to claim 2, characterized in that, The bottom surface of the upper mold base (2) is also provided with guide sleeves (22), which are located on both sides of the upper clamping plate (211).

4. A sleeve stamping die for new energy vehicle parts according to claim 3, characterized in that, The lower punch mechanism (31) also includes a lower clamping plate (311) fixed on the top surface of the lower mold base (3), and a lower pressure plate (312) parallel to the lower clamping plate (311) is provided above the lower clamping plate (311); a vertically upward lower punch (313) is fixed in the middle of the top surface of the lower clamping plate (311), and spring members (4) are provided on both sides of the lower punch (313), and lower guide posts (314) are provided on both sides of the spring members (4); the lower guide posts (314) can slide through the lower pressure plate (312), and the upper end of the spring members (4) is fixed to the top surface of the lower pressure plate (312); the lower punch (313) can slide upward through the lower arc surface (315) in the middle of the top surface of the lower pressure plate (312).

5. A sleeve stamping die for new energy vehicle parts according to claim 1, characterized in that, Two first springs (321) are symmetrically arranged at intervals. Two first guide posts (323) are respectively arranged on the outer side of the two first springs (321). The first guide posts (323) are vertically mounted in the first through hole (324) on the mounting block (322).

6. A sleeve stamping die for new energy vehicle parts according to claim 1, characterized in that, A second through hole (341) is opened horizontally through the middle of the mounting block (322); the small diameter end of the T-shaped tube (34) is inserted into the second through hole (341) and mates with it, and the small diameter end is threaded to the air pipe plug (342), which is connected to an external air source; the stepped annular end face of the T-shaped tube (34) is attached to and axially positioned on the front side wall of the mounting block (322); the large diameter end of the T-shaped tube (34) extends to the outside of the mounting block (322) and is located directly above the lower arc surface (315); a vertically penetrating guide hole (343) is opened on the tube body of the T-shaped tube (34) for positioning and guidance during punching.

7. A sleeve stamping die for new energy vehicle parts according to claim 1, characterized in that, The top surface of the mounting block (322) is threaded to a set screw (325), and the end of the set screw (325) is perpendicular to the outer wall of the T-tube (34).

8. A sleeve stamping die for new energy vehicle parts according to claim 1, characterized in that, The retraction mechanism (33) also includes two U-shaped grooves (331), which are vertically arranged and open opposite each other. The two sides of the mounting plate (332) are adapted to slide and connect inside the U-shaped grooves (331). The side of the mounting plate (332) away from the mounting block (322) is fixed with a telescopic cylinder (333). The telescopic rod of the telescopic cylinder (333) is adapted to pass through the mounting plate (332) and a push plate (334) is provided at the end. Two push rods (335) are fixed on the front side of the push plate (334). The push rods (335) are slidably inserted into the limiting hole (35) opened in the mounting block (322). The limiting hole (35) is provided on both sides of the T-shaped tube (34). The push rods (335) are used to push the end face of the sleeve (1).

9. A sleeve stamping die for new energy vehicle parts according to claim 8, characterized in that, The retraction mechanism (33) also includes a U-shaped fixing plate (336), the two ends of which are fixed to the opposing surfaces of the mounting plate (332) and the mounting block (322) by bolts, and the U-shaped fixing plate (336) is located above the push plate (334).

10. A sleeve stamping die for new energy vehicle parts according to claim 4, characterized in that, Two oppositely arranged inverted L-shaped parts (316) are fixed on the lower mold base (3) on both sides of the lower clamping plate (311). The inner folded surface of the upper part of the inverted L-shaped parts (316) abuts against the top surface of both sides of the lower pressure plate (312). Guide pillars (5) are provided on the lower mold base (3) on the outer side of the two inverted L-shaped parts (316). When the mold is closed, the upper part of the guide pillars (5) is fitted with guide sleeves (22).

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