Punching die for material belt

Abstract

The application discloses a punching die for material belt and belongs to the technical field of automobile part machining, and comprises an upper die base and a lower die base, a bottom plate is arranged on the lower die base, a plurality of machining stations are installed below the upper die base, the machining station comprises at least one punching cutter which is arranged in a floating mode, the bottom of the punching cutter is a cutting edge, a connecting rod is arranged between the top of the punching cutter and the bottom surface of the upper die base, the connecting rod is connected to a pushing cylinder, the pushing cylinder is connected to a control device, the control device controls the working of the pushing cylinder, the working of the pushing cylinder drives the connecting rod to move to be in contact connection with the movable block or to be separated from the movable block, and the upper die base is pressed downward to drive the movable block to be downward punched through the connecting rod. The application remarkably improves the space utilization efficiency and reduces the die cost through technical means such as integrated design, independent control and automatic control.

Description

Technical Field

[0001] This application relates to the technical field of automotive parts processing, and in particular to a punching die for a strip material. Background Technology

[0002] In automotive parts manufacturing, some parts require metal strip bending and forming, and the strip is pre-punched before bending. In traditional processing, to create openings of different shapes at different locations on the metal strip, corresponding punching dies are typically placed at those locations. Each punching die is designed for a specific opening shape and location to produce openings of different shapes to meet the requirements of subsequent bending, assembly, and other processes.

[0003] Relevant prior art, such as Chinese patent application "A punching die", application number: CN202010278106.3, discloses a structure including a fixed rod, a punch, spring plates, a support plate, and a wooden board bearing mechanism. There are four spring plates, which are fixed to the upper end of the support plate. The fixed rod is fixed around the punch. The wooden board bearing mechanism is fixedly installed at the lower end of the support plate. The material is fixed in the placement groove, so that the load-bearing block and the material are sealed and fitted. At this time, the punch punches the material from the impact point. The pressure generated by the operation causes the material to exert pressure on the load-bearing block, and then enters the pressure bag to expand. The expansion bag at the upper end of the air bag and the soft block at the upper end of the load-bearing block are compressed by the material. Due to its cushioning, softness, and adsorption, the strong vibration of the punch operation is alleviated. The pressure block inside the blocking block is used for buffering. The force on the pressure block will act on the pulley, and then the pressure block will exert pressure on the elastic air bag, causing the pulley to slide on the outer wall of the punch, reducing the vibration caused by the impact force of the punch.

[0004] However, this practice of setting up multiple processing molds at corresponding positions on the material strip has certain drawbacks: First, it occupies a large area. Multiple molds set up according to the processing position of the material strip need to occupy several meters of space, resulting in low space utilization in the workshop and limiting the scale of production and the flexibility of equipment layout; Second, the mold cost is high. Each mold needs to be designed and manufactured separately, increasing initial investment and maintenance costs and reducing the company's market competitiveness; Third, production management is complex. The large number of molds and high operational requirements make it easy to make mistakes, affecting production efficiency and product quality stability.

[0005] To address the aforementioned issues, a punching die for a strip material was designed, which can efficiently complete punching operations for openings of various shapes within a limited space, reducing die costs, simplifying production management, and improving production efficiency and quality. Utility Model Content

[0006] The technical problem to be solved by this application is to provide a punching die for a strip material, which significantly improves space utilization efficiency and reduces die cost through integrated design, independent control and automated control.

[0007] The technical solution adopted in this application is as follows: a punching die for a strip material, including an upper die base and a lower die base. A base plate is provided on the lower die base, and several processing stations are installed below the upper die base. Each processing station includes at least one floating punching tool. The bottom of the punching tool is a cutting edge, and a connecting rod is provided between the top of the punching tool and the bottom surface of the upper die base. The connecting rod is connected to a push cylinder, and the push cylinder is connected to a control device. The control device controls the push cylinder to work. The operation of the push cylinder drives the connecting rod to move to contact or disengage from the movable block. The upper die base presses down, driving the movable block to punch downwards through the connecting rod.

[0008] Compared with existing technologies, the advantages of this application are as follows: First, by integrating multiple processing stations below the upper mold base, the space requirement for placing multiple independent molds in traditional processes is reduced. A scenario that previously required several meters of space to place multiple molds can now be achieved through an integrated mold device, significantly improving workshop space utilization and providing more possibilities for expanding production scale and optimizing equipment layout.

[0009] Secondly, by independently controlling the operation of each push cylinder through a control device, the selection of which punching tools are engaged and which are idle can be flexibly chosen. This design greatly enhances the versatility and flexibility of the mold, enabling it to adapt to opening requirements of different shapes and positions, reducing reliance on individual mold customization, and thus effectively reducing mold manufacturing and maintenance costs without sacrificing machining accuracy. The control device can flexibly adjust the punching position and sequence according to preset processes, reducing the complexity and error rate of manual operation, and improving production efficiency and product quality stability. At the same time, automated control also simplifies mold operation and reduces the complexity of production management.

[0010] Finally, the modular design allows each punching tool and its drive unit to be replaced and maintained independently, reducing downtime caused by the failure of a single component. This design improves the reliability and maintenance efficiency of the mold, and reduces production costs.

[0011] In some embodiments of this application, the processing station includes an upper template with a slot on its surface. A movable block adapted to the slot structure is installed within the slot, and the movable block can move up and down within the slot under force. The design of the movable block allows the punching tool to move up and down as needed, improving the adaptability and flexibility of the mold, better adapting to strips of different thicknesses and shapes, and ensuring the accuracy and consistency of punching.

[0012] In some embodiments of this application, one or more punching tools are installed on the movable block, the top of the punching tool is fixedly connected to the movable block, the processing station includes a top plate, the top plate is installed below the upper template, the top plate is provided with an insert corresponding to the punching tool, the insert is provided with a limit hole, and the insert restricts the extreme position of the downward movement of the punching tool.

[0013] By limiting the downward movement limit of the punching tool through the limiting hole on the insert, the stability and consistency of the punching tool during the punching process are ensured, material damage caused by excessive punching depth is avoided, and punching quality is improved.

[0014] In some embodiments of this application, the punching tool includes a rod segment and a punching segment, the diameter of the rod segment is larger than the diameter of the punching segment, the limiting hole is a stepped hole, and the cutting edge of the punching tool can pass through the limiting hole.

[0015] The design of the shank and diameter of the punching section of the punching tool, together with the limiting hole of the stepped hole, ensures that the punching tool can perform stable punching during the punching process, while avoiding excessive downward movement of the punching tool, thus improving the accuracy and stability of punching.

[0016] In some embodiments of this application, the processing station includes an intermediate plate located between the upper template and the top plate. The intermediate plate has a through hole corresponding to the punching tool, through which the punching tool passes.

[0017] The intermediate plate increases the stability of the mold structure. The through holes on the intermediate plate guide the punching tool, ensuring that the punching tool maintains linear movement during the punching process, thereby improving punching accuracy and mold life.

[0018] In some embodiments of this application, the processing station includes a guide plate located above the upper template. The guide plate has a groove, and the push cylinder drives the connecting rod to move along the length of the groove.

[0019] The design of the guide plate and slide provides precise guidance for the movement of the connecting rod, ensuring that the connecting rod moves along a predetermined trajectory under the drive of the push cylinder, improving the stability and punching accuracy of the mold, while simplifying the operation and maintenance of the mold.

[0020] In some embodiments of this application, the top surface of the connecting rod is in contact with the upper mold base, the connecting rod includes a head section and a tail section, the tail section of the connecting rod is connected to the output shaft of the push cylinder, and the bottom surface of the head section of the connecting rod is provided with a clearance surface; when the clearance surface of the connecting rod is located above the movable block, there is a gap between the connecting rod and the movable block.

[0021] When the clearance surface of the connecting rod is above the movable block, the connecting rod cannot fill the gap between the movable block and the upper die holder. In this case, the upper die holder cannot transmit power to the movable block when it presses down, and therefore cannot transmit power to the cutting tool. The clearance surface design ensures that the connecting rod maintains a distance from the movable block when not in operation, avoiding unnecessary contact and wear, extending the die's service life, and ensuring that the connecting rod accurately contacts the movable block during operation, improving the reliability of the punching operation.

[0022] In some embodiments of this application, the bottom surface of the connecting rod is provided with a mating surface, which is adapted to the top surface of the insert and the top surface of the upper template, and the avoidance surface and the mating surface are connected by an inclined surface.

[0023] The design of the contact surface and the inclined surface allows the connecting rod to transition smoothly during movement. Guided by the inclined surface, the connecting rod can be smoothly inserted between the movable block and the upper template, improving the assembly accuracy and ease of operation of the mold.

[0024] In some embodiments of this application, multiple processing stations are installed below the upper mold base. The material strip to be processed is connected to a conveying device. The conveying device drives the material strip to be processed to pass between the base plate and the processing stations. The multiple processing stations are set along the direction of material strip movement.

[0025] The multiple processing stations allow the mold to selectively complete one or more punching operations within a single work cycle, significantly improving production efficiency. Furthermore, the arrangement of multiple processing stations along the material feed direction enables the mold to adapt to material strips of different lengths and shapes, enhancing its versatility.

[0026] In some embodiments of this application, the base plate has a scrap outlet corresponding to the punching tool, and the lower die base has a scrap discharge plate corresponding to the processing station. The scrap discharge plate is inclined. When the punching tool punches down, it generates scrap. The scrap falls along the scrap outlet into the scrap discharge plate and then falls down along the scrap discharge plate.

[0027] The waste discharge design effectively solves the problem of waste disposal during punching, preventing waste accumulation from affecting the continuity and quality of punching operations. The inclined waste discharge plate allows waste to be discharged smoothly, reducing the frequency and time of waste cleaning and improving production efficiency.

[0028] Based on common knowledge in the field, the above-described embodiments can be combined arbitrarily. Attached Figure Description

[0029] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0030] Figure 1 This is a schematic diagram of the structure of the material strip after processing in this application; Figure 2 This is a schematic diagram of the structure of this application; Figure 3 This is a top view of this application; Figure 4 for Figure 3 Sectional view of section AA; Figure 5 for Figure 3 Sectional view of section BB; Figure 6 This is a schematic diagram of the internal structure of this application.

[0031] The specific explanations of the reference numerals in the attached drawings are as follows: 1. Upper mold base; 2. Lower mold base; 3. Base plate; 4. Machining station; 5. Upper template; 6. Top plate; 7. Punching tool; 10. Movable block; 11. Groove; 12. Connecting rod; 13. Push cylinder; 14. Insert; 15. Limiting hole; 16. Rod segment; 17. Punching section; 18. Clearance surface; 19. Fitting surface; 20. Inclined surface; 21. Intermediate plate; 22. Through hole; 23. Guide plate; 24. Slide groove; 25. Control device; 26. Scrap outlet; 27. Scrap discharge plate; 30. Material strip. Detailed Implementation

[0032] The present application will now be described in detail with reference to the accompanying drawings.

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0034] The punching die for the strip, as in Example 1 Figures 1 to 5As shown: The device includes an upper mold base 1 and a lower mold base 2. A base plate 3 is mounted on the lower mold base 2. Several processing stations 4 are installed below the upper mold base 1. By integrating multiple processing stations 4 below the upper mold base 1, the space required for placing multiple independent molds in traditional processes is reduced. A scenario that previously required several meters of space to place multiple molds can now be achieved with an integrated mold device, significantly improving workshop space utilization and providing more possibilities for expanding production scale and optimizing equipment layout. Each processing station 4 includes at least one floating punching tool 7. The bottom of the punching tool 7 is a cutting edge. A connecting rod 12 is provided between the top of the punching tool 7 and the bottom surface of the upper mold base 1. The connecting rod 12 is connected to a push cylinder 13, which is connected to a control device 25. The control device 25 controls the push cylinder 13 to operate. The operation of the push cylinder 13 causes the connecting rod 12 to move to contact or disengage from the movable block 10. The upper mold base 1 presses down, causing the movable block 10 to punch downwards via the connecting rod 12. The control device 25 independently controls the operation of each push cylinder 13, allowing for flexible selection of which punching tools 7 are engaged and which are idle. This design greatly enhances the versatility and flexibility of the mold, enabling it to adapt to opening requirements of different shapes and positions. It reduces reliance on individual mold customization, effectively lowering mold manufacturing and maintenance costs without sacrificing machining accuracy. The control device 25 can flexibly adjust the punching position and sequence according to preset processes, reducing the complexity and error rate of manual operation and improving production efficiency and product quality stability. Simultaneously, automated control simplifies mold operation and reduces the complexity of production management.

[0035] The modular design of this application allows each punching tool 7 and its drive unit to be replaced and maintained independently, reducing downtime of the entire mold due to damage to a single component. This design improves the reliability and maintenance efficiency of the mold and reduces production costs.

[0036] Example 2, as Figures 1 to 6 As shown, the processing station 4 includes an upper template 5, the surface of which has a slot 11. A movable block 10 adapted to the structure of the slot 11 is installed inside the slot 11. The movable block 10 can move up and down within the slot 11 under force. The design of the movable block 10 allows the punching tool 7 to move up and down as needed, improving the adaptability and flexibility of the mold, and enabling it to better adapt to strips 30 of different thicknesses and shapes, ensuring the accuracy and consistency of punching.

[0037] One or more punching cutters 7 are mounted on the movable block 10. The top of the punching cutter 7 is fixedly connected to the movable block 10. The processing station 4 includes a top plate 6, which is installed below the upper template 5. The top plate 6 is provided with an insert 14 corresponding to the punching cutter 7. The insert 14 is provided with a limiting hole 15, which limits the downward movement limit of the punching cutter. By limiting the downward movement limit of the punching cutter 7 through the limiting hole 15 on the insert 14, the stability and consistency of the punching cutter 7 during the punching process are ensured, material damage caused by excessive punching depth is avoided, and the punching quality is improved.

[0038] The punching tool 7 includes a rod segment 16 and a punching section 17. The diameter of the rod segment 16 is larger than the diameter of the punching section 17. The limiting hole 15 is a stepped hole, through which the cutting edge of the punching tool 7 can pass. The diameter design of the rod segment 16 and the punching section 17 of the punching tool 7, in conjunction with the stepped hole limiting hole 15, ensures that the punching tool 7 can perform stable punching during the punching process, while preventing the punching tool 7 from moving excessively downward, thus improving the accuracy and stability of punching.

[0039] The processing station 4 includes an intermediate plate 21, which is located between the upper template 5 and the top plate 6. The intermediate plate 21 has a through hole 22 corresponding to the punching tool 7, through which the punching tool 7 passes. The intermediate plate 21 increases the stability of the mold structure. By guiding the punching tool 7 through the through hole 22, the intermediate plate 21 ensures that the punching tool 7 maintains linear motion during the punching process, thereby improving punching accuracy and the service life of the mold.

[0040] The processing station 4 includes a guide plate 23, which is located above the upper template 5. The guide plate 23 has a groove 24. The push cylinder 13 drives the connecting rod 12 to move along the length of the groove 24. The design of the guide plate 23 and the groove 24 provides precise guidance for the movement of the connecting rod 12, ensuring that the connecting rod 12 moves along a predetermined trajectory under the drive of the push cylinder 13, improving the stability and punching accuracy of the mold, while simplifying the operation and maintenance of the mold.

[0041] The top surface of the connecting rod 12 is in contact with the upper mold base 1. The connecting rod 12 includes a head section and a tail section. The tail section of the connecting rod 12 is connected to the output shaft of the push cylinder 13. The bottom surface of the head section of the connecting rod 12 is provided with a clearance surface 18. When the clearance surface 18 of the connecting rod 12 is located above the movable block 10, there is a gap between the connecting rod 12 and the movable block 10.

[0042] When the clearance surface 18 of the connecting rod 12 is above the movable block 10, the connecting rod 12 cannot fill the gap between the movable block 10 and the upper die holder 1. At this time, the upper die holder 1 cannot transmit power to the movable block 10 when it presses down, and therefore cannot transmit power to the cutting tool. The clearance surface 18 is designed to maintain a distance between the connecting rod 12 and the movable block 10 when not in operation, avoiding unnecessary contact and wear, extending the service life of the die, and ensuring that the connecting rod 12 can accurately contact the movable block 10 when in operation, improving the reliability of the punching operation.

[0043] The bottom surface of the connecting rod 12 is provided with a contact surface 19, which is adapted to the top surface of the insert 14 and the top surface of the upper template 5. The clearance surface 18 is connected to the contact surface 19 by an inclined surface 20. The design of the contact surface 19 and the inclined surface 20 allows the connecting rod 12 to transition smoothly during movement. Guided by the inclined surface 20, the connecting rod 12 can be smoothly inserted between the movable block 10 and the upper template 5, improving the assembly accuracy and ease of operation of the mold.

[0044] Multiple processing stations 4 are installed below the upper mold base 1. The strip 30 to be processed is connected to a conveying device. The conveying device drives the strip 30 to pass between the base plate 3 and the processing stations 4. The multiple processing stations 4 are arranged along the direction of the strip 30's movement. The arrangement of multiple processing stations 4 allows the mold to selectively complete one or more punching operations in one work cycle, significantly improving production efficiency. At the same time, the arrangement of multiple processing stations 4 along the direction of the strip 30's movement allows the mold to adapt to strips 30 of different lengths and shapes, improving the mold's versatility.

[0045] The base plate 3 has a scrap outlet 26 corresponding to the punching tool 7. The lower die base 2 has a scrap discharge plate 27 corresponding to the machining station 4. The scrap discharge plate 27 is inclined. When the punching tool 7 punches down, the scrap generated falls along the scrap outlet 26 into the scrap discharge plate 27 and continues to fall down. This scrap discharge design effectively solves the problem of scrap handling during punching, preventing scrap accumulation from affecting the continuity and quality of the punching operation. The inclined scrap discharge plate 27 allows scrap to be discharged smoothly, reducing the frequency and time of scrap cleaning and improving production efficiency.

[0046] The other contents of Example 2 are the same as those in Example 1.

[0047] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A punching die for a strip of material, characterized in that, The upper mold base (1) and the lower mold base (2) are provided with a base plate (3). Several processing stations (4) are installed below the upper mold base (1). Each processing station (4) includes at least one floating punching tool (7). The bottom of the punching tool (7) is a cutting edge. A connecting rod (12) is provided between the top of the punching tool (7) and the bottom surface of the upper mold base (1). The connecting rod (12) is connected to a push cylinder (13). The push cylinder (13) is connected to a control device (25). The control device (25) controls the push cylinder (13) to work. The push cylinder (13) works and drives the connecting rod (12) to move to contact or disengage from the movable block (10). The upper mold base (1) presses down and drives the movable block (10) to punch downward through the connecting rod (12).

2. The punching die for the strip (30) according to claim 1, characterized in that, The processing station (4) includes an upper template (5), and a slot (11) is provided on the surface of the upper template (5). A movable block (10) adapted to the structure of the slot (11) is installed in the slot (11). The movable block (10) can move up and down in the slot (11) under force.

3. The punching die for the strip (30) according to claim 2, characterized in that, One or more punching cutters (7) are installed on the movable block (10). The top of the punching cutter (7) is fixedly connected to the movable block (10). The processing station (4) includes a top plate (6). The top plate (6) is installed below the upper template (5). The top plate (6) is provided with an insert (14) corresponding to the punching cutter (7). The insert (14) is provided with a limit hole (15). The insert (14) restricts the extreme position of the downward movement of the punching cutter.

4. The punching die for the strip (30) according to claim 3, characterized in that, The punching tool (7) includes a rod segment (16) and a punching segment (17). The diameter of the rod segment (16) is larger than the diameter of the punching segment (17). The limiting hole (15) is a stepped hole, and the cutting edge of the punching tool (7) can pass through the limiting hole (15).

5. The punching die for the strip (30) according to claim 3, characterized in that, The processing station (4) includes an intermediate plate (21), which is located between the upper template (5) and the top plate (6). The intermediate plate (21) has a through hole (22) corresponding to the punching tool (7), through which the punching tool (7) passes.

6. The punching die for the strip (30) according to claim 2, characterized in that, The processing station (4) includes a guide plate (23), which is located above the upper template (5). The guide plate (23) has a groove (24). The push cylinder (13) drives the connecting rod (12) to move along the length of the groove (24).

7. The punching die for the strip (30) according to claim 1, characterized in that, The top surface of the connecting rod (12) is in contact with the upper mold base (1). The connecting rod (12) includes a head section and a tail section. The tail section of the connecting rod (12) is connected to the output shaft of the push cylinder (13). The bottom surface of the head section of the connecting rod (12) is provided with a clearance surface (18). When the clearance surface (18) of the connecting rod (12) is located above the movable block (10), there is a gap between the connecting rod (12) and the movable block (10).

8. The punching die for the strip (30) according to claim 7, characterized in that, The bottom surface of the connecting rod (12) is provided with a fitting surface (19), which is adapted to the top surface of the insert (14) and the top surface of the upper template (5). The clearance surface (18) and the fitting surface (19) are connected by an inclined surface (20).

9. The punching die for the strip (30) according to claim 1, characterized in that, Multiple processing stations (4) are installed below the upper mold base (1). The material strip (30) to be processed is connected to the conveying device. The conveying device drives the material strip (30) to be processed to pass between the base plate (3) and the processing station (4). The multiple processing stations (4) are set along the direction of the material strip (30) moving forward.

10. The punching die for the strip (30) according to claim 1, characterized in that, The base plate (3) has a waste outlet (26) corresponding to the punching tool (7). The lower die base (2) has a waste discharge plate (27) corresponding to the processing station (4). The waste discharge plate (27) is inclined. The punching tool (7) punches down to generate waste. The waste falls into the waste discharge plate (27) along the waste outlet (26) and falls down along the waste discharge plate (27).

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