Anti-deformation punching equipment for punching thin-wall metal plate and punching process

Abstract

The invention relates to the field of metal machining, and discloses an anti-deformation punching device for thin-wall metal plate punching and a punching technology.The anti-deformation punching device comprises a fixing support, a protection base is fixedly connected to the upper surface of the fixing support, a supporting plate is fixedly connected to the interior of the protection base, and a chain conveying belt is arranged in the protection base; a storage frame is arranged on the outer wall of the chain conveying belt, a supporting frame is fixedly connected to the upper surface of the fixing support, a hydraulic cylinder is fixedly connected to the top of the supporting frame, and a lower pressing plate is fixedly connected to the output end of the hydraulic cylinder. The outer wall of the stamping head is matched with the through hole preset in the stamping cylinder, so that deformation of the thin-wall metal plate can be prevented to a certain extent during stamping, meanwhile, the stamping head is convenient to disassemble and assemble through the thread relation between the stamping head and the lower pressing plate, one-time stamping forming can be achieved, repeated stamping is avoided, and the stamping efficiency is improved. And deformation is easy to occur.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, and in particular to an anti-deformation punching device and a punching process for punching thin-walled metal plates. Background Art

[0002] With the rapid development of industrialization, thin-walled metal sheets are widely used in the fields of automobiles, aviation, home appliances, etc. due to their excellent mechanical properties, light weight, and high strength. Especially in automobile manufacturing, thin-walled metal sheets are widely used in body structures. Punching technology, as an important step in the processing of thin-walled metal sheets, has broad application prospects. High precision and high efficiency in the stamping process are the key to ensuring product quality, and also put forward higher requirements for equipment.

[0003] At present, there are many punching equipment on the market that are used for stamping processing of thin-walled metal sheets. Most of these equipment use hydraulic drive and mechanical transmission to work, and have high working efficiency and processing accuracy. However, there are still some problems in the operation of existing punching equipment, especially in the stamping process of thin-walled metal sheets. The impact force between the common punching head and the metal plate may cause the metal plate to deform, affecting the processing quality. At the same time, the design of the cooling system of the existing equipment in the punching process is not perfect, and it cannot effectively prevent the impact of overheating on the plate and equipment, and the coolant is inefficient, resulting in waste.

[0004] In the prior art, although some equipment is equipped with a cooling system and multiple punch heads, it still fails to effectively solve the problem of thin-walled metal sheets being easily deformed during the punching process. In particular, when performing multi-hole punching operations, the docking accuracy between the punch head and the punch cylinder is insufficient, which can easily cause the workpiece to deform and affect the overall quality. In addition, the existing cooling system fails to achieve efficient coolant circulation, resulting in poor cooling effect and serious waste of water resources. In response to these problems, the present invention has been optimized in structure through innovative design, and proposes an anti-deformation punching device and punching process that can effectively prevent the deformation of thin-walled metal sheets, which has significant application advantages. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an anti-deformation punching device and a punching process for punching thin-walled metal sheets, which solves the problem that although some equipment in the existing devices are equipped with a cooling system and a design of multiple punching heads, they still cannot effectively solve the problem that thin-walled metal sheets are prone to deformation during the punching process.

[0006] To achieve the above purpose, the present invention is implemented through the following technical scheme: an anti-deformation punching device for punching thin-walled metal sheet, comprising a fixed bracket, the upper surface of the fixed bracket is fixedly connected with a protective seat, the interior of the protective seat is fixedly connected with a support plate, a chain conveyor belt is arranged inside the protective seat, and a storage frame is arranged on the outer wall of the chain conveyor belt, the upper surface of the fixed bracket is fixedly connected with the support bracket, the top of the support bracket is fixedly connected with a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected with a lower pressure plate, both ends of the lower pressure plate are fixedly connected with a guide column, the internal thread of the guide column is connected with a plurality of punching heads, the support plate is slidably connected with the support seat, the lower surface of the lower pressure plate is provided with a linkage component, the linkage component is used to drive the support seat to move upward, the support seat is provided with a blanking component, the guide column is provided with a cooling component, and the cooling component is used to cool the metal plate during stamping; The cooling assembly includes a shunt pipe, the outer wall of which is fixedly connected to the inside of the guide column, one end of the shunt pipe is fixedly connected to a nozzle, the top of the shunt pipe is fixedly connected to a delivery pipe, one end of the delivery pipe is fixedly connected to a water tank, a valve is provided in the middle of the delivery pipe, the inside of the support plate is fixedly connected to a return pipe, and one end of the return pipe is fixedly connected to the inside of the water tank.

[0007] Preferably, the linkage assembly includes a connecting rod 1, one end of which is rotatably connected to the lower surface of the lower pressure plate, the other end of which is rotatably connected to an elliptical rotating plate, the outer wall of the elliptical rotating plate is rotatably connected to a connecting rod 2, and one end of which is rotatably connected to the outer wall of the support seat.

[0008] Preferably, the blanking assembly includes a punching cylinder, the outer wall of which is slidably connected to the inside of the support seat, a limiting ring is fixedly connected to the inner middle side of the support seat, a guide plate is fixedly connected to the inner lower side of the support seat, and a storage bin is arranged below the support seat.

[0009] Preferably, the guide column is slidably connected to a sliding rod inside the guide column, the bottom of the sliding rod is fixedly connected to a pressure plate, the outer wall of the sliding rod is sleeved with a spring, one end of the spring is fixedly connected to the upper surface of the pressure plate, and the other end of the spring is fixedly connected to the inside of the guide column, the upper surface of the protective seat is fixedly connected to a fixed seat, the inside of the fixed seat is rotatably connected to a rotating shaft 1, the outer wall of the rotating shaft 1 is fixedly connected to an electric push rod, the output end of the electric push rod is fixedly connected to a rotating shaft 2, the outer wall of the rotating shaft 2 is rotatably connected to an L-shaped push plate, the middle part of the L-shaped push plate is rotatably connected to the upper surface of the protective seat, one end of the L-shaped push plate is rotatably connected to a positioning plate, the inside of the positioning plate is rotatably connected to an auxiliary plate, and one end of the auxiliary plate is rotatably connected to the inside of the fixed seat.

[0010] Preferably, the outer wall of the guide column is slidably connected to the inside of the support frame, and the guide column is used to guide the movement of the lower pressing plate.

[0011] Preferably, the outer wall of the elliptical rotating plate is rotatably connected to the inside of the supporting plate, and the elliptical rotating plate is used to drive the connecting rod 1 to move synchronously with the end of the elliptical rotating plate.

[0012] Preferably, the upper surface of the limiting ring is in contact with the upper surface of the punching cylinder, and the outer wall of the storage bin is slidably connected to the inside of the support plate.

[0013] A deformation-proof punching process for punching thin-walled metal plates, the process comprising the following steps: a. Place the thin-walled metal sheet on the storage frame and use the chain conveyor belt to send the metal sheet to the stamping area; b. The hydraulic cylinder drives the lower pressing plate to perform the punching operation, and the punching head punches holes in the metal sheet; c. Cool the metal sheet through the cooling component to reduce the deformation caused by thermal stress; d. The support seat is driven to move during the stamping process through the Z linkage assembly to ensure the shape of the metal sheet is stable during the punching process and avoid deformation; e. Guide the stamped metal sheet to the unloading position through the unloading assembly.

[0014] Preferably, the process comprises the following steps: a. Set up multiple guide posts and punch heads on the metal sheet to ensure precise alignment; b. Use cooling components to cool the stamping area to reduce the impact of temperature fluctuations on punching accuracy; c. The rise and fall of the support base is controlled by the movement of the linkage assembly to ensure that the metal sheet will not be excessively deformed during the punching process.

[0015] The present invention provides a deformation-proof punching device and a punching process for punching thin-walled metal plates. It has the following beneficial effects: 1. The present invention makes the outer wall of the punch head match with the preset through hole inside the punch cylinder, so as to prevent the thin-walled metal sheet from being deformed to a certain extent during punching. At the same time, the threaded relationship between the punch head and the lower pressure plate facilitates the disassembly and assembly of the punch head. At the same time, since the lower pressure plate is provided with threaded holes arranged in a rectangular array, the corresponding number and size of punch heads can be installed according to the punching requirements. In addition, since the punch cylinder is supported by a limiting ring, the punch cylinder can be easily removed, so that the punch cylinder corresponding to the punch head is easily replaced. At the same time, since two groups of lower pressure plates and support seats are provided above the fixed bracket, it can be stamped and formed at one time, avoiding multiple stampings and the problem of easy deformation.

[0016] 2. The nozzle of the present invention sprays coolant evenly between multiple punching heads to ensure that the metal sheet always maintains a suitable temperature during the punching process, preventing material deformation or equipment failure caused by overheating. At the same time, the return pipe is connected to the storage bin to form an efficient coolant circulation system, which not only improves the cooling efficiency, but also reduces the waste of water resources and reduces energy consumption.

[0017] 3. The present invention realizes precise synchronous movement through the cooperation between the elliptical rotating plate and the connecting rod 1, ensuring the coordination of various moving parts during the stamping process. This design improves the automation level and operation accuracy of the equipment, avoids conflicts and malfunctions between mechanical parts, and improves overall work efficiency.

[0018] 4. The tight fit between the limit ring and the punching cylinder of the present invention prevents excessive displacement of the punching cylinder and ensures safety during the punching process. This design effectively avoids equipment damage or workpiece displacement caused by excessive movement, thereby greatly improving the durability of the equipment and the punching quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention; Figure 2 It is a schematic diagram of the structure of the support plate part of the present invention; Figure 3 It is a schematic diagram of the structure of the valve part of the present invention; Figure 4 It is a schematic diagram of the structure of the storage bin of the present invention; Figure 5 It is a partial structural schematic diagram of the guide column of the present invention; Figure 6 It is a schematic diagram of the structure of the shunt pipe part of the present invention; Figure 7 It is a schematic diagram of the structure of the punching cylinder part of the present invention; Figure 8 It is a partial structural schematic diagram of the auxiliary plate of the present invention.

[0020] Among them, 1. fixed bracket; 2. protective seat; 3. chain conveyor belt; 4. storage frame; 5. support frame; 6. hydraulic cylinder; 7. lower pressure plate; 8. guide column; 9. diverter pipe; 10. nozzle; 11. punch head; 12. connecting rod one; 13. elliptical rotating plate; 14. support seat; 15. guide plate; 16. punch cylinder; 17. limit ring; 18. water tank; 19. conveying pipe; 20. valve; 21. return pipe; 22. storage bin; 23. pressure plate; 24. slide rod; 25. spring; 26. fixed seat; 27. shaft one; 28. electric push rod; 29. ​​shaft two; 30. L-shaped push plate; 31. positioning plate; 32. auxiliary plate; 33. support plate; 34. connecting rod two. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1: Please refer to the attached Figure 1 -Attached Figure 8 The embodiment of the present invention provides an anti-deformation punching device for punching thin-walled metal plates, including a fixed bracket 1, a protective seat 2 is fixedly connected to the upper surface of the fixed bracket 1, a support plate 33 is fixedly connected inside the protective seat 2, a chain conveyor belt 3 is arranged inside the protective seat 2, and a storage frame 4 is arranged on the outer wall of the chain conveyor belt 3, a support frame 5 is fixedly connected to the upper surface of the fixed bracket 1, a hydraulic cylinder 6 is fixedly connected to the top of the support frame 5, a lower pressing plate 7 is fixedly connected to the output end of the hydraulic cylinder 6, both ends of the lower pressing plate 7 are fixedly connected to guide columns 8, a plurality of punching heads 11 are connected to the internal threads of the guide columns 8, a support seat 14 is slidably connected to the inside of the support plate 33, a linkage component is arranged on the lower surface of the lower pressing plate 7, the linkage component is used to drive the support seat 14 to move upward, a blanking component is arranged inside the support seat 14, a cooling component is arranged inside the guide column 8, and the cooling component is used to cool the metal plate during stamping; The cooling assembly includes a shunt pipe 9, the outer wall of which is fixedly connected to the inside of the guide column 8, one end of the shunt pipe 9 is fixedly connected to a nozzle 10, the top of the shunt pipe 9 is fixedly connected to a delivery pipe 19, one end of the delivery pipe 19 is fixedly connected to a water tank 18, a valve 20 is provided in the middle of the delivery pipe 19, and a return pipe 21 is fixedly connected to the inside of the support plate 33, and one end of the return pipe 21 is fixedly connected to the inside of the water tank 18.

[0023] In one embodiment, when the anti-deformation punching device for punching thin-walled metal sheets in this embodiment is working, the thin-walled metal sheets are first placed on the storage frame 4, and the convex part of the outer periphery of the storage frame 4 supports the thin-walled metal sheets. After the chain conveyor belt 3 is started, the thin-walled metal sheets are driven to move along the conveying path to ensure that the metal sheets can accurately enter the punching area; when the metal sheets are conveyed to the predetermined position, the hydraulic cylinder 6 is started, and the lower pressing plate 7 is driven to move downward through the guiding effect of the guide column 8. In the process of the lower pressing plate 7 moving downward, the punching head 11 in the guide column 8 at both ends of the lower pressing plate 7 will apply punching force to the thin-walled metal sheet to achieve punching. Due to the through-hole design between the punching head 11 and the punching cylinder 16, the thin-walled metal sheet can be effectively prevented from being deformed during the punching process; the lower surface of the lower pressing plate 7 is equipped with a linkage assembly, which is composed of a connecting rod 12, an elliptical rotating plate 13 and a connecting rod 2 34, and the lower pressing plate 7 is driven by hydraulic pressure to drive the support seat 14 to move upward. The unloading assembly in the support seat 14 cooperates with the limiting ring 17 on the support seat 14 to ensure that after the stamping is completed, the waste can fall into the storage bin 22 through the guide plate 15 and be processed; the cooling assembly plays a vital role in the entire stamping process. The cooling assembly consists of a shunt pipe 9, a nozzle 10, and a delivery pipe 19. The water flow is adjusted by a valve 20. The cooling water is delivered to the nozzle 10 through the shunt pipe 9 to cool the surface of the thin-walled metal sheet, reduce the thermal stress generated by the metal sheet during the punching process, and avoid material deformation. The cooling water flows through the nozzle 10 and is sprayed on the upper surface of the metal sheet, and the water is guided back to the water tank 18 through the return pipe 21 for recycling. In addition, the precise cooperation between the support seat 14 and the stamping cylinder 16 allows the stamping cylinder 16 to be easily disassembled and replaced after the stamping process is completed, which increases the maintainability of the equipment.

[0024] The linkage assembly includes a connecting rod 12, one end of which is rotatably connected to the lower surface of the lower pressure plate 7, the other end of the connecting rod 12 is rotatably connected to the elliptical rotating plate 13, the outer wall of the elliptical rotating plate 13 is rotatably connected to a connecting rod 2 34, and one end of the connecting rod 2 34 is rotatably connected to the outer wall of the support seat 14.

[0025] In one embodiment, the linkage assembly is mainly composed of a connecting rod 12, an elliptical rotating plate 13 and a connecting rod 2 34, which is intended to realize the linkage between the lower pressing plate 7 and the support seat 14 through mechanical transmission, so that the support seat 14 can move upward after the stamping is completed, which is convenient for the discharge of waste and the subsequent operation of the equipment; the connecting rod 12 is connected to the lower pressing plate 7: one end of the connecting rod 12 is rotatably connected to the lower surface of the lower pressing plate 7, and the other end is rotatably connected to the elliptical rotating plate 13. The hydraulic cylinder 6 drives the connecting rod 12 to move by controlling the lower pressing plate 7 to move up and down; the function of the elliptical rotating plate 13: when the lower pressing plate 7 moves downward, the connecting rod 12 drives the elliptical rotating plate 13 to rotate; the elliptical rotating plate 13 will produce a certain offset effect according to the design of its shape and motion trajectory, and provide an appropriate lever effect, so that the connecting rod 2 34 can further drive the support seat 14 to move upward; the connecting rod 2 34 drives the support seat 14 to move: the elliptical rotating plate 13 is connected to the connecting rod 2 34 by rotation, and one end of the connecting rod 2 34 is rotatably connected to the outer wall of the support seat 14. As the elliptical rotating plate 13 rotates, the connecting rod 2 34 drives the support seat 14 to move upward along the guide direction. In this way, when the lower pressing plate 7 presses the metal sheet downwards for stamping, the support seat 14 will automatically move upward to ensure that the waste material after stamping can be discharged in time.

[0026] The blanking assembly includes a punching cylinder 16, the outer wall of which is slidably connected to the inside of the support seat 14, a limiting ring 17 is fixedly connected to the inner middle side of the support seat 14, a guide plate 15 is fixedly connected to the inner lower side of the support seat 14, and a storage bin 22 is arranged below the support seat 14.

[0027] In one embodiment, during the stamping process, the outer wall of the punching cylinder 16 is slidably connected to the inside of the support seat 14. With the action of the punch head 11, the punching cylinder 16 will move up and down to ensure that the metal sheet is accurately stamped. At the same time, the limit ring 17 is fixed to the middle side of the support seat 14 to limit the up and down movement range of the punching cylinder 16, keep the punching cylinder 16 always in the correct position, avoid position displacement or blockage, and the waste generated during the stamping process is discharged downward through the through hole inside the punching cylinder 16. The guide plate 15 is located on the lower side of the support seat 14, which can effectively guide the waste to flow toward the storage bin 22 to ensure smooth collection of the waste. The storage bin 22 collects waste in a centralized manner to avoid waste accumulation and facilitate subsequent processing and cleaning. The entire unloading process is completed automatically without manual intervention, ensuring the efficient operation and stability of the equipment, while simplifying the waste collection process.

[0028] The guide column 8 is internally slidably connected with a slide rod 24, and the bottom of the slide rod 24 is fixedly connected with a pressure plate 23, and the outer wall of the slide rod 24 is sleeved with a spring 25, one end of the spring 25 is fixedly connected to the upper surface of the pressure plate 23, and the other end of the spring 25 is fixedly connected to the inside of the guide column 8, and the upper surface of the protective seat 2 is fixedly connected with a fixed seat 26, and the interior of the fixed seat 26 is rotatably connected with a rotating shaft 1 27, and the outer wall of the rotating shaft 1 27 is fixedly connected with an electric push rod 28, and the output end of the electric push rod 28 is fixedly connected with a rotating shaft 29, and the outer wall of the rotating shaft 29 is rotatably connected with an L-shaped push plate 30, the middle part of the L-shaped push plate 30 is rotatably connected to the upper surface of the protective seat 2, and one end of the L-shaped push plate 30 is rotatably connected to a positioning plate 31, and the interior of the positioning plate 31 is rotatably connected with an auxiliary plate 32, and one end of the auxiliary plate 32 is rotatably connected to the inside of the fixed seat 26.

[0029] In one embodiment, when the device starts to work, the slide bar 24 slides inside the guide column 8, and the pressure plate 23 at the bottom of the slide bar 24 moves up and down according to the needs of the punch head 11. The spring 25 plays a role of buffering and supporting through elasticity. When the pressure plate 23 is supported by the plate, the spring 25 will be compressed, thereby providing a reverse restoring force to stabilize the plate downward pressure and limit the position, ensuring the stability and reaction flexibility of the device, and preventing the plate from being offset due to sudden violent impact during the punching process; in addition, the fixed seat 26 set on the protective seat 2 is equipped with a rotating shaft 1 27 and an electric push rod 28, and the electric push rod 28 drives the L-shaped push plate 30 to move through the rotating shaft 2 29. The middle part of the L-shaped push plate 30 is rotatably connected to the protective seat 2. Through this rotation, one end of the L-shaped push plate 30 can accurately guide the positioning plate 31 to the appropriate position, and the positioning plate 31 further drives the movement of the auxiliary plate 32 to adjust the working range or position of the positioning plate 31. One end of the auxiliary plate 32 is rotatably connected to the inside of the fixing seat 26 to ensure parallel movement of the positioning plate 31, thereby pushing the plate to move to the middle of the storage frame 4, so that the subsequent stamping process is accurate and stable.

[0030] Furthermore, through the buffering effect of the spring 25, the slide bar 24 and the pressure plate 23 achieve flexible movement adjustment, which enhances the durability and adaptability of the equipment; the cooperation between the electric push rod 28 and the shaft structure enables the entire push plate system to complete the adjustment accurately and smoothly, avoiding the errors and inconveniences of traditional manual adjustment. The cooperation between the L-shaped push plate 30 and the positioning plate 31 further enhances the protection function, can adjust the position of the plate in time, and reduces the problem of inaccurate plate position during the stamping process, resulting in the scrapping of the plate. At the same time, the automatic adjustment function of the entire system improves work efficiency, reduces manual intervention, and improves the intelligence level of the equipment.

[0031] The outer wall of the guide column 8 is slidably connected to the inside of the support frame 5, and the guide column 8 is used to guide the movement of the lower pressure plate 7; the nozzle 10 is arranged between the multiple punching heads 11, and one end of the return pipe 21 is arranged below the storage bin 22; the outer wall of the elliptical rotating plate 13 is rotatably connected to the inside of the support plate 33, and the elliptical rotating plate 13 is used to drive the connecting rod 12 to move synchronously with the end of the elliptical rotating plate 13; the upper surface of the limit ring 17 is in contact with the upper surface of the punching cylinder 16, and the outer wall of the storage bin 22 is slidably connected to the inside of the support plate 33.

[0032] In one embodiment, when the device starts working, the slide bar 24 slides inside the lower pressing plate 7, and the pressing plate 23 at the bottom of the slide bar 24 moves up and down according to the needs of the punch head 11. The spring 25 plays a role of buffering and supporting through elasticity. When the pressing plate 23 is pushed by an external force, the spring 25 will be compressed or stretched, thereby providing a reverse restoring force to ensure the accurate position of the plate and prevent the plate from being offset due to sudden violent impact during the punching process. The fixed seat 26 set on the protective seat 2 is equipped with a rotating shaft 1 27 and an electric push rod 28. The electric push rod 28 drives one end of the L-shaped push plate 30 to move through the rotating shaft 29, thereby driving the L-shaped push plate 30 to rotate above the protective seat 2. The middle part of the L-shaped push plate 30 is rotatably connected to the protective seat 2. Through this rotation, the L-shaped push plate 30 can accurately guide the positioning plate 31 to the appropriate position, and the positioning plate 31 further drives the movement of the auxiliary plate 32 to adjust the position of the plate. One end of the auxiliary plate 32 is rotatably connected to the inside of the fixed seat 26 to ensure the accuracy and stability of the action during the overall adjustment process.

[0033] Embodiment 2: This embodiment provides a deformation-proof punching process for punching thin-walled metal plates based on the above embodiment, and the process includes the following steps: a. Place the thin-walled metal sheet on the storage frame 4, and use the chain conveyor belt 3 to deliver the metal sheet to the stamping area; b. The lower pressing plate 7 is driven by the hydraulic cylinder 6 to perform a punching operation, and the punch head 11 punches holes in the metal sheet; c. Cool the metal sheet through the cooling component to reduce the deformation caused by thermal stress; d. The supporting seat 14 is driven to move during the stamping process by the linkage assembly to ensure that the shape of the metal sheet is stable during the punching process to avoid deformation; e. Guide the stamped metal sheet to the unloading position through the unloading assembly.

[0034] The process includes the following steps: a. A plurality of guide posts 8 and a punch head 11 are provided on the metal sheet to ensure accurate alignment; b. Use cooling components to cool the stamping area to reduce the impact of temperature fluctuations on punching accuracy; c. The rise and fall of the support seat 14 is controlled by the movement of the linkage assembly to ensure that the metal sheet will not be excessively deformed during the punching process.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A deformation-proof punching device for punching thin-walled metal plates, comprising a fixed bracket (1), characterized in that: The upper surface of the fixed bracket (1) is fixedly connected to a protective seat (2), the interior of the protective seat (2) is fixedly connected to a support plate (33), the interior of the protective seat (2) is provided with a chain conveyor belt (3), the outer wall of the chain conveyor belt (3) is provided with a storage frame (4), the upper surface of the fixed bracket (1) is fixedly connected to a support frame (5), the top of the support frame (5) is fixedly connected to a hydraulic cylinder (6), the output end of the hydraulic cylinder (6) is fixedly connected to a lower pressing plate (7), both ends of the lower pressing plate (7) are fixedly connected to guide columns (8), the internal threads of the guide columns (8) are connected to a plurality of punching heads (11), the interior of the support plate (33) is slidably connected to a support seat (14), the lower surface of the lower pressing plate (7) is provided with a linkage component, the linkage component is used to drive the support seat (14) to move upward, the interior of the support seat (14) is provided with a blanking component, the interior of the guide column (8) is provided with a cooling component, the cooling component is used to cool the metal plate during stamping; The cooling assembly comprises a shunt pipe (9), the outer wall of the shunt pipe (9) is fixedly connected to the inside of the guide column (8), one end of the shunt pipe (9) is fixedly connected to a nozzle (10), the top of the shunt pipe (9) is fixedly connected to a delivery pipe (19), one end of the delivery pipe (19) is fixedly connected to a water tank (18), a valve (20) is provided in the middle of the delivery pipe (19), and the inside of the support plate (33) is fixedly connected to a return pipe (21), one end of the return pipe (21) is fixedly connected to the inside of the water tank (18).

2. The anti-deformation punching device for punching thin-walled metal plates according to claim 1, characterized in that: The linkage assembly comprises a connecting rod 1 (12), one end of the connecting rod 1 (12) is rotatably connected to the lower surface of the lower pressure plate (7), the other end of the connecting rod 1 (12) is rotatably connected to an elliptical rotating plate (13), the outer wall of the elliptical rotating plate (13) is rotatably connected to a connecting rod 2 (34), and one end of the connecting rod 2 (34) is rotatably connected to the outer wall of the support seat (14).

3. The anti-deformation punching device for punching thin-walled metal plates according to claim 2, characterized in that: The blanking assembly comprises a punching cylinder (16), the outer wall of which is slidably connected to the interior of the support seat (14), a limiting ring (17) is fixedly connected to the inner middle side of the support seat (14), a guide plate (15) is fixedly connected to the inner lower side of the support seat (14), and a storage bin (22) is provided below the support seat (14).

4. The anti-deformation punching device for punching thin-walled metal plates according to claim 1, characterized in that: The guide column (8) is slidably connected to a slide rod (24) at the inside, and a pressure plate (23) is fixedly connected to the bottom of the slide rod (24). A spring (25) is sleeved on the outer wall of the slide rod (24). One end of the spring (25) is fixedly connected to the upper surface of the pressure plate (23), and the other end of the spring (25) is fixedly connected to the inside of the guide column (8). The upper surface of the protective seat (2) is fixedly connected to a fixed seat (26). The inside of the fixed seat (26) is rotatably connected to a rotating shaft (27). The rotating shaft (27) ) is fixedly connected to an electric push rod (28) on its outer wall, the output end of the electric push rod (28) is fixedly connected to a second rotating shaft (29), the outer wall of the second rotating shaft (29) is rotatably connected to an L-shaped push plate (30), the middle part of the L-shaped push plate (30) is rotatably connected to the upper surface of the protective seat (2), one end of the L-shaped push plate (30) is rotatably connected to a positioning plate (31), the interior of the positioning plate (31) is rotatably connected to an auxiliary plate (32), and one end of the auxiliary plate (32) is rotatably connected to the interior of the fixed seat (26).

5. The anti-deformation punching device for punching thin-walled metal plates according to claim 1, characterized in that: The outer wall of the guide column (8) is slidably connected to the interior of the support frame (5), and the guide column (8) is used to guide the movement of the lower pressing plate (7).

6. The anti-deformation punching device for punching thin-walled metal plates according to claim 3, characterized in that: The spray head (10) is arranged between the plurality of punching heads (11), and one end of the return pipe (21) is arranged below the storage bin (22).

7. The anti-deformation punching device for punching thin-walled metal plates according to claim 2, characterized in that: The outer wall of the elliptical rotating plate (13) is rotatably connected to the inside of the support plate (33), and the elliptical rotating plate (13) is used to drive the connecting rod 1 (12) to move synchronously with the end of the elliptical rotating plate (13).

8. The anti-deformation punching device for punching thin-walled metal plates according to claim 3, characterized in that: The upper surface of the limiting ring (17) is in contact with the upper surface of the punching cylinder (16), and the outer wall of the storage bin (22) is slidably connected to the inside of the support plate (33).

9. A deformation-proof punching process for punching thin-walled metal sheets, according to the deformation-proof punching device for punching thin-walled metal sheets as claimed in any one of claims 1 to 8, characterized in that: The process comprises the following steps: a. placing a thin-walled metal sheet on a storage frame (4), and using a chain conveyor belt (3) to deliver the metal sheet to a stamping area; b. The lower pressing plate (7) is driven by the hydraulic cylinder (6) to perform a punching operation, and the punching head (11) punches holes in the metal sheet; c. Cool the metal sheet through the cooling component to reduce the deformation caused by thermal stress; d. The support seat (14) is driven to move during the punching process through the Z linkage assembly to ensure that the shape of the metal sheet is stable during the punching process to avoid deformation; e. Guide the stamped metal sheet to the unloading position through the unloading assembly.

10. The anti-deformation punching process for punching thin-walled metal plates according to claim 9, characterized in that: The process comprises the following steps: a. Arrange a plurality of guide posts (8) and a punch head (11) on the metal sheet to ensure accurate alignment; b. Use cooling components to cool the stamping area to reduce the impact of temperature fluctuations on punching accuracy; c. The rise and fall of the support seat (14) is controlled by the movement of the linkage assembly to ensure that the metal sheet does not undergo excessive deformation during the punching process.

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