Inner fisheye blanking structure in precise progressive die
By introducing an upper die adjustment component and a lower die pad design into the stamping die, the problem of punch breakage during the inner fisheye punching process was solved, resulting in higher production efficiency and product quality, and extending the service life of the die.
Patent Information
- Application Number
- CN202520375718.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-05
AI Technical Summary
Existing stamping dies are prone to punch breakage during the inner fisheye punching process. Furthermore, existing methods are complex to use, difficult to debug, or lack stability and durability when high precision is required.
It adopts the internal fisheye punching structure in precision progressive die, including upper die adjustment components and lower die pad design, to ensure uniform pressure distribution. Combined with multi-layer structure and stripping components, it improves punching accuracy and stability.
It effectively avoids punch breakage, improves production efficiency and product quality, extends the service life of the mold, and enhances the stability and reliability of the punching process.
Smart Images
Figure CN223902725U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of stamping dies, in particular to an inner fish eye blanking structure in a precision progressive die. BACKGROUND
[0002] With the development of modern industry, stamping technology has developed rapidly, especially in the field of automobile parts manufacturing. Various connectors are widely used, and fish eye terminals are particularly common in these connectors. Fish eye terminals have unique structural characteristics and have significant advantages in connection reliability, which can effectively improve the performance and safety of products.
[0003] In order to realize efficient production of fish eye terminals, existing stamping dies usually use various methods to complete the inner fish eye blanking. Common methods include but are not limited to: 1) setting a fixed punch for blanking, which is simple and direct, suitable for small batch production; 2) using a multi-station progressive die to gradually complete complex blanking operations through multiple stations, suitable for large-scale production; 3) adding a floating device in the die to make the force more uniform during blanking, reducing wear and failure rate.
[0004] Although the method of setting a fixed punch is simple, it is prone to punch breakage under high precision requirements; although the multi-station progressive die can improve production efficiency, the equipment is complex and difficult to debug; although the floating device can improve the problem of uneven force, its stability and durability still need to be improved. CONTENT OF THE INVENTION
[0005] In order to improve the consistency of force on both sides after the inner fish eye of the finished material belt is blanked, and to avoid the problem of inconsistent blanking on both sides during feeding and punch breakage, the application provides an inner fish eye blanking structure in a precision progressive die.
[0006] The inner fish eye blanking structure in the precision progressive die provided by the application adopts the following technical scheme:
[0007] An inner fish eye blanking structure in a precision progressive die, comprising an upper die stamping component and a lower die stamping component; the upper die stamping component is arranged on the lower die stamping component; an upper die adjusting assembly is further arranged on the upper die stamping component; a product is arranged between the upper die stamping component and the lower die stamping component; wherein the upper die stamping component comprises an upper die seat, an upper die template backing plate and an upper die template, which are arranged in sequence from top to bottom on the lower die stamping component; the upper die adjusting assembly comprises an adjusting rod fixed block mounted on the upper die seat and an adjusting rod mounted on the adjusting rod fixed block, the adjusting rod fixed block and the upper die seat are fastened by a fixed block fixing screw, and the adjusting rod and the adjusting rod fixed block are fastened by an adjusting rod fixing screw.
[0008] By adopting the technical scheme, the upper die adjusting assembly makes the pressure distribution more uniform during the inner fish eye blanking process, effectively avoids the phenomenon of broken punch caused by uneven stress, improves the production efficiency and product quality, and the accurate cooperation between the upper die stamping component and the lower die stamping component ensures the blanking precision, further improves the stability of the product.
[0009] Optionally, the lower die plate stamping component comprises a lower die plate, a lower die plate backing plate and a lower die seat, which are sequentially arranged from top to bottom.
[0010] By adopting the technical scheme, the multi-layer structure during the stamping process ensures the stability and precision between each part of the lower die, improves the overall performance and service life of the die.
[0011] Optionally, the upper die stamping component is further provided with an upper die stripping assembly, the upper die stripping assembly comprises a stripping plate backing plate mounted on the upper die plate, and the stripping plate backing plate is provided with a stripping plate away from the upper die plate.
[0012] By adopting the technical scheme, the upper die stripping assembly can effectively prevent the material from being jammed or adhered during the stamping process, ensure the smooth transmission of the material, and improve the stability and reliability of the stripping process, reduce the product defects caused by poor stripping.
[0013] Optionally, the lower die plate is provided with a lower die knife opening, and the lower die knife opening is provided with a lower die backing block.
[0014] By adopting the technical scheme, the lower die knife opening cooperates more closely with the inner fish eye punch during the blanking process, improves the blanking precision and stability, reduces material waste, and prolongs the service life of the die.
[0015] Optionally, the stripping plate is provided with an inner fish eye punch, both sides of the inner fish eye punch are provided with inner fish eye punch fixing shafts for limiting the horizontal movement of the inner fish eye punch, and the end of the inner fish eye punch is provided with a punch stop block.
[0016] By adopting the technical scheme, the inner fish eye punch fixing shafts are arranged on both sides of the inner fish eye punch, which ensures the stability and precision of the inner fish eye punch during the working process, prevents product defects caused by lateral displacement, and further enhances the overall rigidity of the inner fish eye punch, improves the impact resistance during the blanking process, and effectively avoids the phenomenon of broken punch.
[0017] Optionally, the upper die plate is provided with an inner fish-eye punch fixed sheath, the inner fish-eye punch fixed sheath provided in the upper die plate is provided with an inner fish-eye punch fixed sheath reset spring, and the end of the inner fish-eye punch fixed sheath reset spring is provided with a punch pressing plate, and the punch pressing plate and the upper die plate are locked by a punch pressing plate fixing screw.
[0018] By adopting the above technical scheme, the inner fish-eye punch fixed sheath and the inner fish-eye punch fixed sheath reset spring can effectively improve the stability of the inner fish-eye punch during the working process, and ensure that the inner fish-eye punch maintains good perpendicularity and strength during the punching process. At the same time, the punch pressing plate further enhances the overall rigidity of the punch, reduces the risk of deformation or damage caused by impact, thereby improving the service life and production efficiency of the die.
[0019] Optionally, the inner fish-eye punch provided in the stripper plate is sequentially sleeved with a first stripper plate sheath and a second stripper plate sheath from top to bottom.
[0020] By adopting the above technical scheme, the first stripper plate sheath and the second stripper plate sheath can effectively protect the inner fish-eye punch from being damaged during the punching process, and at the same time improve the stability and service life of the inner fish-eye punch.
[0021] In summary, the present application includes at least one of the following beneficial technical effects:
[0022] 1. The inner fish-eye punch is completed after the punching of the material belt, ensuring that the forces on both sides are consistent, and avoiding the phenomenon of broken punch caused by inconsistent punching on both sides during feeding;
[0023] 2. The upper die adjusting assembly improves the overall perpendicularity and strength during the punching process, improving the stability and reliability of the punching;
[0024] 3. The punch as a whole is better protected and supported, reducing wear and failure rate, and prolonging the service life. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0026] Figure 1 is the overall structure diagram of the present application.
[0027] Figure 2 is the closed figure of the station state of the present application after the finished material belt is punched.
[0028] 1, upper die seat; 2, upper die plate backing plate; 3, upper die plate; 4, stripper plate backing plate; 5, stripper plate; 6, lower die plate; 7, lower die plate backing plate; 8, lower die seat; 9, fixed block fixing screw; 10, adjusting rod fixed block; 11, adjusting rod; 12, adjusting rod fixing screw; 13, inner fish eye punch fixing sheath; 14, inner fish eye punch fixing sheath reset spring; 15, punch pressing plate; 16, punch pressing plate fixing screw; 17, punch stopper; 18, inner fish eye punch; 19, inner fish eye punch fixing shaft; 20, first stripper plate sheath; 21, second stripper plate sheath; 22, lower die knife edge; 23, lower die backing block. DETAILED DESCRIPTION
[0029] The application will be further described below in conjunction with the accompanying drawings. Figures 1-2 The application will be further described below in conjunction with the accompanying drawings.
[0030] The application discloses an inner fish eye blanking structure in a precision progressive die.
[0031] Referring to Figure 1 , the inner fish eye blanking structure comprises an upper die stamping component and a lower die stamping component, the upper die stamping component is arranged on the lower die stamping component, and a product is arranged between the upper die stamping component and the lower die stamping component. The structure can effectively solve the problem of broken punch in traditional inner fish eye blanking and improve the verticality and strength during blanking.
[0032] Referring to Figure 1 , the inner fish eye blanking structure comprises an upper die stamping component and a lower die stamping component, the upper die stamping component is arranged on the lower die stamping component, and a product is arranged between the upper die stamping component and the lower die stamping component. The structure can effectively solve the problem of broken punch in traditional inner fish eye blanking and improve the verticality and strength during blanking.
[0033] Referring to Figure 2As shown, the upper die stamping component includes an upper die seat 1, an upper die plate backing plate 2 and an upper die plate 3, which are sequentially arranged from top to bottom on the lower die stamping component. The three-layer structure is connected together by bolts or other fasteners, ensuring the stability of the entire upper die stamping component. The upper die adjusting assembly is an important part of the upper die stamping component, which includes an adjusting rod fixed block 10 installed on the upper die seat 1 and an adjusting rod 11 installed on the adjusting rod fixed block 10. The adjusting rod fixed block 10 and the upper die seat 1 are fastened by the fixed block fixing screw 9, and the adjusting rod 11 and the adjusting rod fixed block 10 are fastened by the adjusting rod fixing screw 11. The position of the upper die can be adjusted flexibly during the punching process as needed, so as to adapt to products of different thicknesses and shapes.
[0034] Referring to Figure 2 As shown, the lower die stamping component includes a lower die plate 6, a lower die plate backing plate 7 and a lower die seat 8, which are also sequentially arranged from top to bottom. The lower die plate 6 provides a stable support surface during the punching process, and the lower die plate backing plate 7 and the lower die seat 8 increase the overall rigidity and stability. The lower die seat 8 is designed to be made of high-strength alloy steel material to withstand large impact force and long-term working load.
[0035] Referring to Figure 2 As shown, the upper die stamping component is also provided with an upper die stripping assembly, mainly including a stripping plate backing plate 4 installed on the upper die plate 3 and a stripping plate 5 arranged below it. The function of the stripping plate 5 is to push the waste out of the mold after each punching is completed, preventing the accumulation of waste affecting subsequent operations. The stripping plate backing plate 4 can be fixed on the upper die plate 3 by screws, ensuring its stability and reliability during high-speed punching.
[0036] Referring to Figure 2 As shown, the lower die plate 6 is provided with a lower die knife edge 22, and the inside is provided with a lower die backing block 23. The lower die backing block 23 is used to buffer the impact force generated during the punching process, reducing damage to the mold itself. The lower die backing block 23 is made of rubber material with good elasticity, which can extend the service life of the mold while ensuring the buffering effect.
[0037] Referring to Figure 2 As shown, the stripping plate 5 is provided with an inner fish eye punch 18, and the two sides of the inner fish eye punch 18 are provided with inner fish eye punch fixing shafts 19 for limiting the horizontal movement of the inner fish eye punch 18, ensuring that the punch always maintains vertical movement during operation, avoiding the phenomenon of broken punch caused by inclination. The end of the inner fish eye punch 18 is also provided with a punch stop block 17, which plays a limiting role to prevent the punch from being damaged by excessive insertion into the mold.
[0038] Referring to Figure 2As shown, the inner fish eye punch fixed sheath 13 is arranged in the upper die plate 3, and the inner fish eye punch fixed sheath reset spring 14 is arranged in the inner fish eye punch fixed sheath 13 in the upper die plate 3. The function of the reset spring is to automatically reset the inner fish eye punch 18 to the initial position after each blanking is completed, to ensure the accuracy of the next blanking. The punch pressing plate 15 and the upper die plate 3 are locked by the punch pressing plate fixing screw 16 to form a closed space to protect the reset spring from external interference.
[0039] Referring to Figure 2 Figure 2 As shown, the inner fish eye punch 18 in the stripper plate 5 is sequentially sleeved with the first stripper plate sheath 20 and the second stripper plate sheath 21 from top to bottom. The two sheaths not only can protect the inner fish eye punch 18 from the external environment, but also can increase the guiding property, so that the inner fish eye punch 18 can move more smoothly. The first stripper plate sheath 20 and the second stripper plate sheath 21 made of wear-resistant materials can maintain good performance in high-frequency blanking operations.
[0040] The implementation principle of the inner fish eye blanking structure in the precision progressive die according to the embodiment of the application is that the components work cooperatively in the inner fish eye blanking process. The upper die adjusting assembly and the lower die pad 23 improve the flexibility and impact resistance of the die. The cooperation of the stripper plate 5 and the inner fish eye punch 18 ensures the accuracy and stability of the blanking process, greatly reduces the occurrence of broken punch, and improves the production efficiency and product quality.
[0041] Unless otherwise defined, technical terms or scientific terms used in the present application shall be understood as having the usual meaning understood by a person skilled in the art to which the present application belongs. The "first", "second", "third" and similar words used in the specification and claims of the present application do not represent any order, quantity or importance, but are used to distinguish different components. "One" or "a" and similar words do not represent a quantity limitation, but represent the existence of at least one. "Including" or "containing" and similar words mean that the elements or objects appearing before "including" or "containing" cover the elements or objects listed after "including" or "containing" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to represent relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0042] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.
Claims
1. An inner fish-eye blanking structure in a precision progressive die, characterized by: The upper die stamping component and the lower die stamping component; The upper die stamping component is arranged on the lower die stamping component; The upper die stamping component is further provided with an upper die adjusting assembly; The product is arranged between the upper die stamping component and the lower die stamping component; The upper die stamping component comprises an upper die seat (1), an upper die template backing plate (2) and an upper die template (3), which are sequentially arranged from top to bottom on the lower die stamping component; The upper die adjusting assembly comprises an adjusting rod fixed block (10) mounted on the upper die seat (1) and an adjusting rod (11) mounted on the adjusting rod fixed block (10), the adjusting rod fixed block (10) and the upper die seat (1) are fastened by a fixed block fixing screw (9), and the adjusting rod (11) and the adjusting rod fixed block (10) are fastened by an adjusting rod fixing screw (12).
2. The inner fish-eye blanking structure in a precision progressive die according to claim 1, characterized in that: The lower die stamping component comprises a lower die template (6), a lower die template backing plate (7) and a lower die seat (8), which are sequentially arranged from top to bottom.
3. The inner fish-eye blanking structure in a precision progressive die according to claim 1, characterized in that: The upper die stamping component is further provided with an upper die stripping assembly, the upper die stripping assembly comprises a stripping plate backing plate (4) mounted on the upper die template (3), and the stripping plate backing plate (4) is provided with a stripping plate (5) away from one side of the upper die template (3).
4. The inner fish-eye blanking structure in a precision progressive die according to claim 2, characterized in that: The lower die template (6) is provided with a lower die knife edge (22), and the lower die knife edge (22) is provided with a lower die backing block (23).
5. The inner fish-eye blanking structure in a precision progressive die according to claim 3, characterized in that: The stripping plate (5) is provided with an inner fish eye punch (18), both sides of the inner fish eye punch (18) are provided with inner fish eye punch fixed shafts (19) for limiting horizontal movement of the inner fish eye punch (18), and an end of the inner fish eye punch (18) is provided with a punch stopper (17).
6. The inner fish-eye blanking structure in a precision progressive die according to claim 5, characterized in that: The upper die template (3) is provided with an inner fish eye punch fixed sheath (13), the inner fish eye punch fixed sheath (13) in the upper die template (3) is provided with an inner fish eye punch fixed sheath return spring (14), one end of the inner fish eye punch fixed sheath return spring (14) is provided with a punch pressing plate (15), and the punch pressing plate (15) and the upper die template (3) are locked by a punch pressing plate fixing screw (16).
7. The inner fish-eye blanking structure in a precision progressive die according to claim 6, characterized in that: The inner fish eye punch (18) in the stripping plate (5) is sequentially provided with a first stripping plate sheath (20) and a second stripping plate sheath (21) from top to bottom.