High-precision steamer shell blanking device and method thereof

Abstract

The invention relates to the technical field of steamer shell blanking, and discloses a high-precision steamer shell blanking device and a method thereof.The high-precision steamer shell blanking device comprises a punching machine, a feeding assembly is arranged outside the punching machine, an impurity removing assembly is arranged between the punching machine and the feeding assembly, and the lower end of the interior of the punching machine is fixedly connected with a lower bottom plate; a lower mold is fixedly connected to the upper surface of the lower bottom plate, two sliding grooves are formed in the lower mold, one end of each sliding groove penetrates through the outer surface of the lower mold, and a first rack is slidably connected to the interior of each sliding groove. When the upper die moves downwards, the trigger plate preferentially presses down the L-shaped plate, the L-shaped plate drives the telescopic clamp to clamp and fix the raw material piece in advance, and then the raw material piece is blanked by the upper cutting knife and the lower cutting knife, so that the problem that the raw material piece slides or displaces at the moment of blanking is avoided, and the dimensional precision and consistency of a finished steamer shell product are guaranteed.

Description

Technical Field

[0001] This invention relates to the field of steamer shell punching technology, specifically to a high-precision steamer shell punching device and method. Background Technology

[0002] Steamers, as a widely used kitchen appliance, are typically made from sheet metal through a stamping process. In the traditional production of steamer shells, stamping is a key step that determines their final size, shape, and edge quality.

[0003] Existing stamping technology typically uses conventional stamping presses with simple dies to process metal sheets. However, this method has some inherent drawbacks: First, during the stamping process, the metal sheet is merely placed on the lower die, lacking an effective pre-clamping and precise positioning mechanism. When the upper die descends at high speed and contacts and acts on the sheet, the enormous impact force can easily cause the sheet to slip or warp slightly. This uncertain displacement directly leads to dimensional deviations in the final stamped shell, making it difficult to meet high-precision production requirements and resulting in poor product consistency.

[0004] Secondly, during transportation, storage, and unwinding, the surface of rolled metal sheets inevitably accumulates dust, oil, metal shavings, or other impurities. If the sheets are not pre-cleaned, these impurities will be pressed into the casing surface during stamping, causing permanent scratches, pits, or dents, severely affecting the product's appearance and finish. Simultaneously, these hard impurities accelerate the wear of expensive stamping dies, shortening their lifespan and increasing production costs.

[0005] In addition, traditional production methods are often not highly automated and require a lot of manual intervention, such as manual feeding, alignment, and secondary cleaning of finished products. This not only reduces production efficiency but also introduces more uncertainties, making it difficult to guarantee the stability and continuity of the production process.

[0006] Therefore, how to overcome the problems of low punching accuracy due to inaccurate positioning, poor product quality due to unclean raw material surfaces, and insufficient automation in the existing technology, and develop a punching device and method for steamer shells that can achieve high precision, high quality, and high efficiency production, has become an urgent technical problem to be solved in this field. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a high-precision steamer shell punching device and method, which solves the problems of sharp and irregular metal protrusions generated at the lower edge of the cross-section during the punching process, uneven density of the punching raw material leading to biased wear of the punching tool, and metal shavings and other foreign objects on the outer surface of the punching raw material scratching the finished raw material sheet during the punching process.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a high-precision steamer shell punching device and method, comprising a punching machine, a feeding assembly externally disposed on the punching machine, a cleaning assembly disposed between the punching machine and the feeding assembly, a lower base plate fixedly connected to the lower end of the punching machine, a lower die fixedly connected to the upper surface of the lower base plate, two sliding grooves formed inside the lower die, one end of the sliding groove penetrating the outer surface of the lower die, a rack slidably connected inside the sliding groove, one end of the rack slidably penetrating the upper surface of the lower die, two gears rotatably connected inside the lower die, the rack slidably meshing with one side of the gear, a lower cutting blade slidably connected inside the lower die, two racks 2 fixedly connected to the lower end of the cutting blade, the racks 2 meshing with the other side of the gear, an upper base plate fixedly connected to the upper end of the punching machine, an upper die fixedly connected to the lower surface of the upper base plate, and an upper cutting blade fixedly connected to the upper die by bolts.

[0009] Preferably, the impurity removal component includes a support frame, which is fixedly connected to the left side of the outer surface of the press. A shield is fixedly connected to the top of the support frame, and a brush is rotatably connected inside the shield. A motor is fixedly connected inside the support frame, and the output end of the motor is fixedly connected to one end of the brush. A mounting plate is fixedly connected to the outer surface of the shield. The mounting plate has multiple mounting holes inside, with both ends of the mounting holes penetrating the upper and lower surfaces of the mounting plate. A cleaning liquid tank is abutted inside the mounting holes. A raw material sheet is slidably connected inside the support frame, and a sludge collection box is fixedly connected to the bottom of the support frame.

[0010] Preferably, the feeding assembly includes a leveler and a roller press. The leveler is located on the outer left side of the support frame, and the roller press is located on the outer right side of the stamping machine. The leveler connects the support frame, the stamping machine, and the roller press through the raw material sheet.

[0011] Preferably, the upper cutting blade is composed of multiple fan-shaped blades, which are fixedly connected to the interior of the upper mold by bolts.

[0012] Preferably, a plurality of guide posts are fixedly connected to the upper surface edge of the lower base plate, the upper ends of the guide posts penetrate the upper base plate, and the upper base plate is slidably connected to the outer surface of the guide posts.

[0013] Preferably, the inner top end of the support frame is fixedly connected to a plurality of U-shaped wipers, the plurality of U-shaped wipers being divided into upper and lower layers, and a raw material sheet being slidably connected between the two layers of U-shaped wipers.

[0014] Preferably, two telescopic clamps are fixedly connected to the upper surface of the lower base plate, and an L-shaped plate is slidably connected inside the telescopic clamps. Inside the telescopic clamps, multiple telescopic rods and multiple springs are fixedly connected between the inner bottom end of the telescopic clamps and one end of the L-shaped plate, and the springs are sleeved on the outside of the telescopic rods.

[0015] Preferably, two trigger plates are fixedly connected to the lower surface of the upper base plate, and the positions of the trigger plates are adapted to the L-shaped plate.

[0016] Preferably, a pressure plate is fixedly connected to one end of the rack that passes through the upper surface of the lower mold, and a placement groove is provided on the upper surface of the lower mold, the size of which is adapted to the pressure plate.

[0017] A high-precision steamer shell punching method includes the following steps:

[0018] S1. The raw material sheet is fed into the leveling machine and the impurity removal component in sequence to perform leveling and surface cleaning treatment on the raw material sheet;

[0019] S2. The raw material sheet that has been leveled and surface cleaned is conveyed into the stamping machine and positioned between the upper and lower dies;

[0020] S3. Start the stamping machine to move the upper die with the upper cutting blade downwards; before the upper cutting blade contacts the raw material sheet, the trigger plate installed below the upper die contacts and presses down the L-shaped plate set on the lower base plate, and the L-shaped plate drives the telescopic clamp to clamp and fix the raw material sheet on the lower die; then, the upper die continues to move downwards, so that the upper cutting blade cooperates with the lower cutting blade to perform punching on the clamped raw material sheet;

[0021] S4. After the blanking is completed, the upper die returns upward, causing the trigger plate to separate from the L-shaped plate, and the telescopic clamp resets, releasing the clamping of the raw material sheet.

[0022] This invention provides a high-precision steamer shell punching device and method. It has the following beneficial effects:

[0023] 1. This invention features a trigger plate installed below the upper base plate, an L-shaped plate installed above the lower base plate, and a telescopic clamp. When the upper mold moves downward, the trigger plate will press down the L-shaped plate first, and the L-shaped plate will drive the telescopic clamp to pre-clamp and fix the raw material sheet. Then, the upper and lower cutting blades will punch the raw material sheet, avoiding the problem of the raw material sheet sliding or shifting during punching, thereby ensuring the dimensional accuracy and consistency of the finished steamer shell.

[0024] 2. This invention adds a cleaning component between the feeding assembly and the stamping machine. This component includes a U-shaped scraper for scraping off impurities on both sides of the raw material sheet and a waste collection box for collecting waste. Before entering the mold station, the raw material sheet passes through the scraper, thereby removing oil, moisture or solid particles attached to the surface in advance. This not only prevents impurities from being pressed into the shell surface during the stamping process, forming scratches or pits and improving the appearance quality of the finished product, but also reduces the wear of impurities on the precision mold and extends the service life of the equipment.

[0025] 3. This invention integrates the leveling machine, automatic feeding assembly, impurity removal assembly, and stamping machine into a single design. Combined with an upper cutting blade composed of fan-shaped blades and a lower cutting blade driven by a gear and rack mechanism, it achieves full automation from raw material leveling, cleaning, conveying, positioning and clamping to final punching. This highly integrated automated process not only significantly improves production efficiency and reduces the uncertainty caused by manual intervention, but also further optimizes the cutting quality through a sophisticated blade structure design, ensuring high-quality, high-efficiency, and high-stability production of the steamer shell. Attached Figure Description

[0026] Figure 1 This is a perspective view of the present invention;

[0027] Figure 2 This is a top view of the present invention;

[0028] Figure 3 This is a schematic diagram of the impurity removal component of the present invention;

[0029] Figure 4 This is a schematic diagram of the brush of the present invention;

[0030] Figure 5 This is a schematic diagram of the stamping machine of the present invention;

[0031] Figure 6 This is a schematic diagram of the lower mold of the present invention;

[0032] Figure 7 This is a schematic diagram of the lower base plate of the present invention;

[0033] Figure 8 This is a schematic diagram of the cutting blade of the present invention;

[0034] Figure 9 This is a schematic diagram of the telescopic clamp of the present invention;

[0035] Figure 10 This is a schematic diagram of the fan-shaped splitter blade of the present invention.

[0036] The components include: 1. Stamping machine; 2. Feeding assembly; 3. Impurity removal assembly; 4. Lower base plate; 5. Lower mold; 6. Upper base plate; 7. Upper mold; 8. Upper cutting blade; 501. Sliding groove; 502. Rack one; 503. Gear; 504. Lower cutting blade; 505. Rack two; 301. Support frame; 302. Shielding cover; 303. Brush; 304. Motor; 305. Mounting plate; 306. Mounting hole; 307. Cleaning liquid tank; 308. Raw material sheet; 201. Leveling machine; 202. Roller press; 801. Fan-shaped divider; 309. Sludge collection box; 401. Guide column; 3051. U-shaped scraper; 402. Telescopic clamp; 403. L-shaped plate; 404. Telescopic rod; 405. Spring; 601. Trigger plate; 5021. Pressure plate; 5022. Placement groove. Detailed Implementation

[0037] 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.

[0038] Please see the appendix Figure 1 -Appendix Figure 10 This invention provides a high-precision steamer shell punching device and method, including a punching machine 1, a feeding assembly 2 externally disposed on the punching machine 1, a cleanup assembly 3 disposed between the punching machine 1 and the feeding assembly 2, a lower base plate 4 fixedly connected to the lower end of the punching machine 1, a lower die 5 fixedly connected to the upper surface of the lower base plate 4, two sliding grooves 501 formed inside the lower die 5, one end of each sliding groove 501 penetrating the outer surface of the lower die 5, and a rack 502 slidably connected inside the sliding groove 501. One end of 502 passes through the upper surface of the lower mold 5. Two gears 503 are rotatably connected inside the lower mold 5. The rack 502 meshes with one side of the gear 503. The lower cutting blade 504 is slidably connected inside the lower mold 5. Two racks 505 are fixedly connected to the lower end of the cutting blade. The racks 505 mesh with the other side of the gear 503. The upper base plate 6 is fixedly connected to the upper end of the inside of the stamping machine 1. The upper mold 7 is fixedly connected to the lower surface of the upper base plate 6. The upper cutting blade 8 is fixedly connected to the upper mold 7 by bolts.

[0039] Specifically, the feeding assembly is responsible for stably conveying the raw material sheet 308, and the impurity removal assembly 3 is responsible for pre-processing the raw material sheet 308. Inside the core stamping press 1, the upper die 7 carries the upper cutting blade 8 and moves downward. At the same time, the transmission mechanism inside the lower die 5 is triggered. After being subjected to force, the rack 1 502 meshes with and drives the gear 503 to rotate. The gear 503 then drives the rack 2 505, causing the lower cutting blade 504 to also produce a precise controlled movement. Through the coordinated dynamic cooperation of the upper and lower cutting blades 504, the high-precision stamping and forming of the steamer shell is completed.

[0040] The impurity removal component 3 includes a support frame 301, which is fixedly connected to the left side of the outer surface of the press 1. A shield 302 is fixedly connected to the top of the support frame 301. A brush 303 is rotatably connected inside the shield 302. A motor 304 is fixedly connected inside the support frame 301. The output end of the motor 304 is fixedly connected to one end of the brush 303. A mounting plate 305 is fixedly connected to the outer surface of the shield 302. A plurality of mounting holes 306 are opened inside the mounting plate 305. The two ends of the mounting holes 306 penetrate the upper and lower surfaces of the mounting plate 305. A cleaning liquid tank 307 is abutted inside the mounting holes 306. A raw material sheet 308 is slidably connected inside the support frame 301. A sludge collection box 309 is fixedly connected to the bottom of the support frame 301.

[0041] Specifically, in the impurity removal assembly, when the raw material sheet 308 passes through, the motor 304 drives the brush 303 to rotate, actively scrubbing the surface of the raw material sheet 308. If wet cleaning is required, the cleaning liquid tank 307 provides cleaning liquid, which is evenly applied to the raw material sheet 308 through the mounting holes 306 on the mounting plate 305. The entire cleaning process takes place inside the shield 302, effectively preventing liquid splashing. All removed impurities and waste liquid are ultimately collected in the sludge collection tank 309 below, thus ensuring a clean production environment and preventing contaminants from entering subsequent stamping processes.

[0042] The feeding assembly 2 includes a leveler 201 and a roller press 202. The leveler 201 is located on the outer left side of the support frame 301, and the roller press 202 is located on the outer right side of the stamping machine 1. The leveler 201 connects the support frame 301, the stamping machine 1 and the roller press 202 through the raw material sheet 308.

[0043] Specifically, the leveling machine 201 first levels the incoming roll of raw material 308 to eliminate its inherent curling stress and unevenness, providing a flat substrate for subsequent precision processing. At the end of the process, the roller press 202 provides a continuous and stable traction force, pulling the raw material 308 through the impurity removal and stamping stations in sequence. The coordinated work of the leveling machine 201 and the roller press 202 ensures that the raw material 308 moves smoothly, continuously, and without obstruction throughout the entire processing path.

[0044] The upper cutting blade 8 is composed of multiple fan-shaped dividing blades 801, which are fixedly connected to the inside of the upper mold 7 by bolts.

[0045] Specifically, the upper cutting blade 8 adopts a structure of multiple fan-shaped dividing blades 801 spliced ​​together, which simplifies the manufacturing difficulty and cost of the overall cutting blade with complex contours; on the other hand, when a part of the cutting blade wears out due to long-term use, only the corresponding single fan-shaped dividing blade 801 needs to be replaced, without discarding the entire upper cutting blade 8, which greatly reduces maintenance costs and shortens the downtime for equipment maintenance.

[0046] Multiple guide posts 401 are fixedly connected to the upper surface edge of the lower base plate 4. The upper end of the guide post 401 penetrates the upper base plate 6, and the upper base plate 6 is slidably connected to the outer surface of the guide post 401.

[0047] Specifically, the guide column 401 is one of the key structures ensuring the high precision of this device, playing a precise guiding role between the upper and lower base plates. When the upper base plate 6 drives the upper die 7 to perform high-speed reciprocating motion, the guide column 401 can strictly limit its movement trajectory, ensuring that the upper die 7 always maintains pure vertical lifting and lowering, preventing any possible tilting or lateral displacement, thereby ensuring perfect alignment and dynamic coaxiality of the upper and lower dies 5 during the stamping process.

[0048] Multiple U-shaped wipers 3051 are fixedly connected to the inner top of the support frame 301. The multiple U-shaped wipers 3051 are divided into upper and lower layers, and a raw material sheet 308 is slidably connected between the two layers of U-shaped wipers 3051.

[0049] Specifically, in the impurity removal process, U-shaped scrapers 3051, arranged in two layers, perform double-sided treatment on the passing raw material sheet 308. Their unique U-shaped structure allows them to adhere closely to the surface of the raw material sheet 308, effectively scraping away oil, moisture, or residual solid particles. This step acts as a physical cleaning barrier, further enhancing the cleanliness of the raw material sheet 308 and ensuring that the surface condition of the raw material sheet 308 entering the mold meets the ideal requirements.

[0050] Two telescopic clips 402 are fixedly connected to the upper surface of the lower base plate 4. An L-shaped plate 403 is slidably connected inside the telescopic clip 402. Inside the telescopic clip 402, multiple telescopic rods 404 and multiple springs 405 are fixedly connected between the inner bottom end of the telescopic clip 402 and one end of the L-shaped plate 403. The springs 405 are sleeved on the outside of the telescopic rods 404.

[0051] Specifically, when the L-shaped plate 403 is subjected to an external force, the telescopic rod 404 drives the telescopic clamp 402 to clamp the raw material sheet 308 firmly. The spring 405 provides the necessary preload and return force to ensure that the telescopic clamp 402 can automatically release after the external force disappears. This clamping action, which precedes the punching, is the core of preventing material slippage and ensuring the accuracy of the finished product.

[0052] Two trigger plates 601 are fixedly connected to the lower surface of the upper base plate 6, and the position of the trigger plates 601 is adapted to the L-shaped plate 403.

[0053] Specifically, during the downward movement of the upper die 7 on the stamping press, the trigger plate 601 installed below the upper base plate 6 will first contact and press down the L-shaped plate 403 located below. By precisely setting the position and stroke of the trigger plate 601, it can be ensured that the clamping action is reliably triggered before the cutting blade contacts the raw material sheet 308, realizing the key process sequence of "clamping first, then punching", which provides a guarantee for high-precision processing.

[0054] One end of the rack 502 that passes through the upper surface of the lower mold 5 is fixedly connected to the pressure plate 5021. The upper surface of the lower mold 5 is provided with a placement groove 5022, the size of which is adapted to the pressure plate 5021.

[0055] Specifically, during stamping, a force from above acts on the pressure plate 5021, causing it to shift downwards and be housed in the placement groove 5022 on the surface of the lower die 5, thereby driving the rack 502 to move. This design cleverly utilizes the downward motion during stamping to power the lower cutting blade 504, achieving mechanism linkage. The presence of the placement groove 5022 ensures that, in the non-working state, the pressure plate 5021 does not interfere with the smooth transport of the raw material sheet 308.

[0056] A high-precision steamer shell punching method includes the following steps:

[0057] S1. The raw material sheet 308 is fed into the leveling machine 201 and the impurity removal component 3 in sequence to perform leveling and surface cleaning treatment on the raw material sheet 308.

[0058] S2. The raw material sheet 308, which has been leveled and surface cleaned, is conveyed into the stamping machine 1 and positioned between the upper die 7 and the lower die 5.

[0059] S3. Start the stamping machine 1, causing the upper die 7, which is equipped with the upper cutting blade 8, to move downwards; before the upper cutting blade 8 contacts the raw material sheet 308, the trigger plate 601 installed below the upper die 7 contacts and presses down the L-shaped plate 403 set on the lower base plate 4, and the L-shaped plate 403 drives the telescopic clamp 402 to clamp and fix the raw material sheet 308 on the lower die 5; then, the upper die 7 continues to move downwards, so that the upper cutting blade 8 cooperates with the lower cutting blade 504 to perform punching on the clamped raw material sheet 308;

[0060] S4. After the blanking is completed, the upper die 7 returns upward, causing the trigger plate 601 to separate from the L-shaped plate 403, and the telescopic clamp 402 resets accordingly, releasing the clamping of the raw material sheet 308.

[0061] Working principle: In actual use, the raw material sheet 308 is leveled by the leveling machine 201 and then enters the support frame 301. Inside the support frame 301, the cleaning liquid in the cleaning liquid tank 307 is sprayed onto the raw material sheet 308 under the influence of gravity. At the same time, the motor 304 is started to drive the brush 303 to rotate, scraping off metal shavings and other foreign objects from the surface of the raw material sheet 308. Subsequently, the raw material sheet 308 moves continuously towards the stamping machine 1. The U-shaped scraper 3051 scrapes off excess cleaning liquid and impurities from the surface of the raw material sheet 308, which fall into the sludge collection tank 309. Then the raw material sheet 308 enters the press. The raw material sheet 308 enters the stamping press 1; inside the stamping press 1, the raw material sheet 308 enters between the pressure plate 5021 and the L-shaped plate 403. During the stamping process, the upper base plate 6 slides down along the guide column 401 under the action of the hydraulic rod, driving the upper die 7 and the upper cutting blade 8 to descend. As the upper die 7 continues to descend, the trigger plate 601 presses down on the L-shaped plate 403, the telescopic rod 404 compresses the spring 405, and the edge of the raw material sheet 308 is clamped by the pressure plate 5021 and the L-shaped plate 403. Then, the raw material sheet 308 is pressed down by the upper cutting blade 8 onto the lower die 5, while the pressure plate 5021 continues to be subjected to pressure. The pressure plate 5021 is lowered to the critical position when the upper cutting blade 8 is about to complete the punching and the material is in a critical state of severe plastic deformation and about to be torn and produce burrs. Then the pressure plate 5021 continues to descend, driving the rack 1 502 to slide in the sliding groove 501. The pneumatic gear 503 rotates, driving the rack 2 505 to move. The lower cutting blade 504 moves upward quickly, and its sharp edge cuts the raw material sheet 308 from below, removing the remaining low-thickness material. Cutting is performed from the opposite direction, which suppresses the traditional stretching and tearing process, so almost no downward burrs are produced. After the blanking is completed, the upper base plate 6 rises, the trigger plate 601 moves away from the L-shaped plate 403, the spring 405 returns to its original position and pushes the L-shaped plate 403 to release the raw material sheet 308. The trigger plate 601 moves away from the L-shaped plate 403, and the blanked raw material sheet 308 is sent out by the roller press 202. During this process, the L-shaped plate 403 restricts the position of the raw material sheet 308 and prevents the blanked raw material sheet 308 from leaving with the upper cutting blade 8.

[0062] During continuous punching, considering that the density distribution of the raw material sheet 308 may be uneven, the upper cutting blade 8 in this invention is assembled from multiple fan-shaped dividing blades 801. When the upper cutting blade 8 experiences uneven wear, the wear position of the upper cutting blade 8 can be adjusted by loosening the bolts and rotating the upper cutting blade 8, thereby extending the service life of the upper cutting blade 8.

[0063] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision steamer shell punching device, comprising a punching machine (1), characterized in that, A feeding assembly (2) is provided on the outside of the stamping machine (1). A cleaning assembly (3) is provided between the stamping machine (1) and the feeding assembly (2). A lower base plate (4) is fixedly connected to the lower end of the inside of the stamping machine (1). A lower die (5) is fixedly connected to the upper surface of the lower base plate (4). Two sliding grooves (501) are opened inside the lower die (5). One end of the sliding groove (501) penetrates the outer surface of the lower die (5). A rack (502) is slidably connected inside the sliding groove (501). One end of the rack (502) penetrates the upper surface of the lower die (5). On the surface, two gears (503) are rotatably connected inside the lower mold (5), and the rack one (502) meshes with one side of the gear (503). A lower cutting blade (504) is slidably connected inside the lower mold (5). Two racks two (505) are fixedly connected to the lower end of the cutting blade. The rack two (505) meshes with the other side of the gear (503). An upper base plate (6) is fixedly connected to the upper end of the stamping machine (1). An upper mold (7) is fixedly connected to the lower surface of the upper base plate (6). An upper cutting blade (8) is fixedly connected to the upper mold (7) by bolts.

2. The high-precision steamer shell punching device according to claim 1, characterized in that, The impurity removal component (3) includes a support frame (301), which is fixedly connected to the left side of the outer surface of the press (1). A shield (302) is fixedly connected to the top of the support frame (301). A brush (303) is rotatably connected inside the shield (302). A motor (304) is fixedly connected inside the support frame (301). The output end of the motor (304) is fixedly connected to one end of the brush (303). A mounting plate (305) is fixedly connected to the outer surface of the shield (302). The mounting plate (305) has multiple mounting holes (306) inside. The two ends of the mounting holes (306) pass through the upper and lower surfaces of the mounting plate (305). A cleaning liquid tank (307) is abutted inside the mounting holes (306). A raw material sheet (308) is slidably connected inside the support frame (301). A sludge collection box (309) is fixedly connected to the bottom of the support frame (301).

3. The high-precision steamer shell punching device according to claim 2, characterized in that, The feeding assembly (2) includes a leveler (201) and a roller press (202). The leveler (201) is located on the outer left side of the support frame (301), and the roller press (202) is located on the outer right side of the stamping machine (1). The leveler (201) connects the support frame (301), the stamping machine (1), and the roller press (202) through the raw material sheet (308).

4. The high-precision steamer shell punching device according to claim 1, characterized in that, The upper cutting blade (8) is composed of multiple fan-shaped cutting blades (801), which are fixedly connected to the interior of the upper mold (7) by bolts.

5. The high-precision steamer shell punching device according to claim 1, characterized in that, Multiple guide posts (401) are fixedly connected to the upper surface edge of the lower base plate (4). The upper end of the guide post (401) penetrates the upper base plate (6), and the upper base plate (6) is slidably connected to the outer surface of the guide post (401).

6. The high-precision steamer shell punching device according to claim 2, characterized in that, The inner top end of the support frame (301) is fixedly connected to a plurality of U-shaped wipers (3051), which are divided into upper and lower layers, and a raw material sheet (308) is slidably connected between the two layers of U-shaped wipers (3051).

7. The high-precision steamer shell punching device according to claim 1, characterized in that, Two telescopic clips (402) are fixedly connected to the upper surface of the lower base plate (4). An L-shaped plate (403) is slidably connected inside the telescopic clip (402). Inside the telescopic clip (402), multiple telescopic rods (404) and multiple springs (405) are fixedly connected between the inner bottom end of the telescopic clip (402) and one end of the L-shaped plate (403). The springs (405) are sleeved on the outside of the telescopic rods (404).

8. The high-precision steamer shell punching device according to claim 7, characterized in that, Two trigger plates (601) are fixedly connected to the lower surface of the upper base plate (6), and the position of the trigger plates (601) is adapted to the L-shaped plate (403).

9. The high-precision steamer shell punching device according to claim 1, characterized in that, One end of the rack (502) that passes through the upper surface of the lower mold (5) is fixedly connected to the pressure plate (5021). The upper surface of the lower mold (5) is provided with a placement groove (5022), the size of which is adapted to the pressure plate (5021).

10. A high-precision steamer shell punching method, comprising a high-precision steamer shell punching device according to any one of claims 1-9, characterized in that, Including the following methods: S1. The raw material sheet (308) is fed into the leveling machine (201) and the impurity removal component (3) in sequence to perform leveling and surface cleaning treatment on the raw material sheet (308); S2. The raw material sheet (308) that has been leveled and surface cleaned is conveyed into the stamping machine (1) and positioned between the upper die (7) and the lower die (5); S3. Start the press (1) to make the upper die (7) with the upper cutting blade (8) move downward; before the upper cutting blade (8) contacts the raw material sheet (308), the trigger plate (601) installed below the upper die (7) contacts and presses down the L-shaped plate (403) set on the lower base plate (4), and the L-shaped plate (403) drives the telescopic clamp (402) to clamp and fix the raw material sheet (308) on the lower die (5); then, the upper die (7) continues to move downward, so that the upper cutting blade (8) cooperates with the lower cutting blade (504) to perform punching on the clamped raw material sheet (308); S4. After the blanking is completed, the upper die (7) returns upward, causing the trigger plate (601) to separate from the L-shaped plate (403), and the telescopic clamp (402) resets accordingly, releasing the clamping of the raw material sheet (308).

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