An integrated stretching and punching mold
By designing an integrated stretching and punching mold, combining the combined movement of the upper and lower mold components and elastic elements, the problem of traditional molds requiring two sets of molds to complete stretching and punching is solved, achieving high production efficiency and cost savings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU YUEZHONG AUTOMOBILE TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-07-03
AI Technical Summary
Traditional molds require two sets of molds to complete the stretching and punching processes separately, resulting in high costs, complex procedures, and low efficiency.
Design an integrated stretching and punching mold that combines the stretching and punching processes through the combined movement of the upper and lower mold components, and uses elastic elements and limiting components to ensure smooth operation.
It enables the stretching and punching processes to be completed in one mold, saving time and costs and improving production efficiency.
Smart Images
Figure CN224444316U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mold technology, and in particular relates to an integrated stretching and punching mold. Background Technology
[0002] Stamping dies are indispensable process equipment in stamping production, and a good die structure is a reliable guarantee for realizing the process plan. The quality and precision of stamped parts mainly depend on the quality and precision of the blanking die. Whether the blanking die structure is reasonable and advanced directly affects production efficiency, the service life of the blanking die itself, and the safety and convenience of operation. Due to the differences in the shape, size, precision, production batch, and production conditions of the stamped parts, the structural types of blanking dies also vary.
[0003] Stamping dies are divided into drawing, punching, bending, blanking, etc., depending on the process. Generally, one station completes one process in the design. Therefore, traditional dies require two processes to complete a drawing hole: the first process is punching, and the second process is drawing, or the first process is drawing, and the second process is punching. Such a design requires two sets of dies, which is more expensive and complicated. Summary of the Invention
[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0005] A stretching and punching integrated mold includes a mold body composed of an upper mold and a lower mold. The upper mold includes an upper mold base plate, an upper mold core assembly mounted on the upper mold base plate, and a first guide assembly for guiding the upper mold core assembly. The first guide assembly is fixedly connected to the upper mold base plate, and the upper mold core assembly slides on the upper mold base plate through the first guide assembly.
[0006] The lower mold includes a lower mold base plate, a lower mold core assembly mounted on the lower mold base plate, and a second guide assembly for guiding the lower mold core assembly. The second guide assembly is fixedly connected to the lower mold core base plate, and the lower mold core assembly slides on the lower mold base plate through the second guide assembly.
[0007] When the upper mold base plate moves downward, the upper mold core assembly and the lower mold core assembly come into contact with each other to complete the stretching and punching actions.
[0008] Furthermore, the upper mold core assembly includes a first upper mold core and a second upper mold core fixed on the first upper mold core. The second upper mold core is provided with a punch, and the first upper mold core is provided with a plurality of first elastic elements. One end of the first elastic element abuts against the upper mold base plate, and the other end abuts against the first upper mold core.
[0009] Furthermore, the lower die assembly includes a lower die mounted on the lower die base plate, the lower die having a receiving hole that matches the punch, the punch cooperating with the receiving hole for punching and stretching, and a second elastic element being provided inside the lower die.
[0010] Furthermore, the upper mold base plate and the lower mold base plate are respectively provided with a first limiting component and a second limiting component. The first limiting component and the second limiting component are L-shaped. The first limiting component can limit the movement distance of the second upper mold core.
[0011] Furthermore, several sets of positioning components are also installed on the lower mold, and the product blank is fixed by the positioning components.
[0012] Furthermore, the first guide assembly includes a guide block and a plurality of lubrication blocks fixed on the guide block, the lubrication blocks being disposed on the friction surface of the second upper mold core.
[0013] The beneficial effects of this utility model are:
[0014] This invention features elastic elements inside the upper and lower molds, causing the upper and lower mold cores to be ejected outwards. When the molds are closed, the upper and lower mold cores align, and under the guidance of the guide assembly, the punch completes the stretching process. When the molds are continuously closed, the elastic elements are compressed, completing the punching at the bottom of the stretching hole. This invention combines the stretching and punching processes into a single mold, completing the punching action simultaneously with the stretching process, saving time and costs. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model (red indicates the upper mold);
[0017] Figure 2 This is a schematic diagram of the upper mold structure of this utility model (red represents the upper mold core assembly, blue represents the first limiting assembly, and green represents the first guiding assembly).
[0018] Figure 3 This is a schematic diagram of the lower mold structure of this utility model (red represents the lower mold core assembly, blue represents the second limiting assembly, green represents the second guiding assembly, and pink represents the positioning assembly).
[0019] Figure 4 This is a schematic diagram of the upper mold structure of this utility model (the red part represents the punch).
[0020] Figure 5 This is a schematic diagram of the upper mold structure of this utility model (red indicates the receiving hole);
[0021] Figure 6 This is a schematic diagram of the upper mold movement principle of this utility model;
[0022] Figure 7 This is a schematic diagram illustrating the closing motion principle of the upper and lower molds of this utility model;
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Upper die; 11. Upper die base plate; 12. Upper die core assembly; 121. First upper die core; 122. Second upper die core; 123. Punch; 124. First elastic element; 13. First guide assembly; 131. Guide block; 132. Lubricating block; 14. First limiting assembly; 2. Lower die; 21. Lower die base plate; 22. Lower die core assembly; 221. Lower die core; 222. Accommodating hole; 23. Second guide assembly; 24. Second limiting assembly; 25. Positioning assembly. Detailed Implementation
[0025] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention. Specific Implementation Example 1:
[0027] A stretching and punching integrated mold includes a mold body composed of an upper mold 1 and a lower mold 2. The upper mold 1 includes an upper mold base plate 11, an upper mold core assembly 12 mounted on the upper mold base plate 11, and a first guide assembly 13 for guiding the upper mold core assembly 12. The first guide assembly 13 is fixedly connected to the upper mold base plate 11, and the upper mold core assembly 12 slides on the upper mold base plate 11 through the first guide assembly 13. Specifically, the upper mold core assembly 12 includes a first upper mold core 121 and a second upper mold core 122 fixed on the first upper mold core 121. The second upper mold core 122 is provided with a punch 123, and the first upper mold core 12 is provided with a plurality of first elastic elements 124. One end of the first elastic element 124 abuts against the upper mold base plate 11, and the other end abuts against the first upper mold core 121. The upper mold base plate 11 and the lower mold base plate 21 are respectively provided with a first limiting component 14 and a second limiting component 24. The first limiting component 14 and the second limiting component 24 are L-shaped. The first limiting component 14 can limit the movement distance of the second upper mold core 122. The first guide component 13 includes a guide block 131 and a plurality of lubrication blocks 132 fixed on the guide block 131. The lubrication blocks 132 are disposed on the friction surface of the second upper mold core 122.
[0028] The lower die 2 includes a lower die base plate 21, a lower die core assembly 22 mounted on the lower die base plate 21, and a second guide assembly 23 for guiding the lower die core assembly 22. The second guide assembly 23 is fixedly connected to the lower die core base plate 21, and the lower die core assembly 22 slides on the lower die base plate 21 via the second guide assembly 23. Specifically, the lower die core assembly 22 includes a lower die core 221 mounted on the lower die base plate 21. The lower die core 221 is provided with a receiving hole 222 that matches the punch 123. The punch 123 cooperates with the receiving hole 222 for punching and stretching. A second elastic element 223 is also provided inside the lower die core 221. Several sets of positioning assemblies 25 are also installed on the lower die 2, and the product blank is fixed by the positioning assemblies 25.
[0029] When the upper mold base plate 11 moves downward, the upper mold core assembly 12 and the lower mold core assembly 22 come into contact with each other to complete the stretching and punching actions.
[0030] The above description is merely an embodiment of this application and does not limit the patent scope of this utility model. Any equivalent structural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. A stretch and punch integrated die comprising a die body consisting of an upper die (1) and a lower die (2), characterized in that: The upper mold (1) includes an upper mold base plate (11), an upper mold core assembly (12) mounted on the upper mold base plate (11), and a first guide assembly (13) for guiding the upper mold core assembly (12). The first guide assembly (13) is fixedly connected to the upper mold base plate (11), and the upper mold core assembly (12) slides on the upper mold base plate (11) through the first guide assembly (13). The lower mold (2) includes a lower mold base plate (21), a lower mold core assembly (22) mounted on the lower mold base plate (21), and a second guide assembly (23) for guiding the lower mold core assembly (22). The second guide assembly (23) is fixedly connected to the lower mold core base plate (21), and the lower mold core assembly (22) slides on the lower mold base plate (21) through the second guide assembly (23). When the upper mold base plate (11) moves downward, the upper mold core assembly (12) and the lower mold core assembly (22) come into contact with each other to complete the stretching and punching action.
2. The stretch and pierce integrated die of claim 1, wherein: The upper mold core assembly (12) includes a first upper mold core (121) and a second upper mold core (122) fixed on the first upper mold core (121). The second upper mold core (122) is provided with a punch (123). The first upper mold core (121) is provided with a plurality of first elastic elements (124). One end of the first elastic element (124) abuts against the upper mold base plate (11), and the other end abuts against the first upper mold core (121).
3. The stretch and pierce integrated die of claim 2, wherein: The lower die core assembly (22) includes a lower die core (221) mounted on the lower die base plate (21). The lower die core (221) is provided with a receiving hole (222) that matches the punch (123). The punch (123) cooperates with the receiving hole (222) to punch and stretch. The lower die core (221) is also provided with a second elastic element (223).
4. The stretch and pierce integrated die of claim 1, wherein: The upper mold base plate (11) and the lower mold base plate (21) are respectively provided with a first limiting component (14) and a second limiting component (24). The first limiting component (14) and the second limiting component (24) are L-shaped. The first limiting component (14) can limit the movement distance of the second upper mold core (122).
5. The stretch and pierce integrated die of claim 1, wherein: The lower mold (2) is also equipped with several sets of positioning components (25), and the product blank is fixed by the positioning components (25).
6. The stretch and pierce integrated die of claim 1, wherein: The first guide assembly (13) includes a guide block (131) and a plurality of lubricating blocks (132) fixed on the guide block (131), the lubricating blocks (132) being disposed on the friction surface of the second upper mold core (122).