shearing die
By designing a first shearing structure consisting of multiple protrusions in the shearing die and utilizing the gaps between the protrusions to cut the material segment by segment, the problem of high pressure when cutting high-strength materials by traditional shearing dies is solved, and more efficient material cutting is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING HP PELZER AUTOMOTIVE INTERIOR SYST
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional shearing dies require a large cutting pressure when cutting materials with high strength, making it difficult to complete the cutting operation efficiently.
Design a shearing die that employs a first shearing structure composed of multiple protrusions with gaps between them. By using a segmented, step-by-step cutting mode, the contact area between the blade and the product on the same plane is reduced, thereby increasing the pressure per unit area.
It reduces the pressure required to cut materials, expands the applicability of the shearing die, and enables more efficient cutting of higher strength materials.
Smart Images
Figure CN224527459U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of molds, specifically a shearing mold. Background Technology
[0002] Currently, in mold processing, some shearing dies employ a shearing blade structure, with both the upper and lower blades designed in a stepped shape. During the cutting process, the two blades move in an alternating motion, utilizing the resulting shearing force to cut the product. However, for some high-strength, difficult-to-cut products, traditional shearing dies require applying significant cutting pressure to achieve effective cutting. Utility Model Content
[0003] The purpose of this application is to provide a shearing die that can reduce the pressure required to cut materials.
[0004] To address the aforementioned technical problems, this application provides the following technical solutions:
[0005] This application provides a shearing die, comprising:
[0006] The first module has a first shearing structure, which has multiple protrusions and gaps between the ends of the multiple protrusions.
[0007] The second module has a second shear structure;
[0008] The first shearing structure is capable of moving relative to the second shearing structure along a first direction; when the first shearing structure is in a first position, multiple protrusions are misaligned with the projection of the second shearing structure along a second direction; when the first shearing structure is in a second position, multiple protrusions overlap with the projection of the second shearing structure along a second direction to complete the shearing action; the first direction and the second direction are perpendicular.
[0009] In some modified embodiments of this application, the cross-sectional area of the protrusion gradually decreases along a first direction, which points from a first position to a second position.
[0010] In some modified embodiments of this application, the ends of the protrusions are provided with curved surfaces, and multiple protrusions together form a wave-like structure;
[0011] Alternatively, the protrusions may have a pyramidal structure; multiple protrusions may together form a serrated structure.
[0012] Alternatively, the protrusion may be a frustum-shaped structure, with a first plane at the end of the protrusion, the first plane being perpendicular to a first direction.
[0013] In some modified embodiments of this application, the side of the protrusion near the second shear structure and the side of the second shear structure near the protrusion are adapted to each other.
[0014] In some modified embodiments of this application, the plurality of protrusions are arranged at least partially along a third direction, which is perpendicular to the first and second directions; the second shear structure is a stepped structure, and the side of the protrusions near the second shear structure is adapted to the sidewall of the stepped structure.
[0015] In some modified embodiments of this application, multiple protrusions are distributed along an annular path, the second shear structure is a mating hole, and the side of the protrusion near the second shear structure is adapted to the inner wall of the mating hole.
[0016] In some modified embodiments of this application,
[0017] The distance between multiple protrusions is set.
[0018] In some modified embodiments of this application, the first module has a driving part, which is connected to the first shearing structure, and the driving part can drive the first shearing structure to move along a first direction.
[0019] In some modified embodiments of this application,
[0020] The hardness of the first shear structure is greater than that of the second shear structure;
[0021] The first module is positioned above the second module, and the first shear structure and the second shear structure are offset from each other along the projection of the first direction.
[0022] In some modified embodiments of this application, multiple first shear structures and multiple second shear structures are provided, and the multiple first shear structures and multiple second shear structures correspond one-to-one.
[0023] Compared to existing technologies, the shearing die provided in this application features multiple protrusions in the first shearing structure, with gaps between the ends of these protrusions. This allows the protrusions to cut into the product first during the cutting process, followed by the gap areas, transforming the original large-area simultaneous cutting method into a segmented, step-by-step cutting mode. This effectively reduces the contact area between the blade and the product on the same plane during shearing, increasing the pressure per unit area and making the material easier to cut. This reduces the pressure required to cut the material, enabling the shearing die to cut higher-strength materials and expanding its applicability. Attached Figure Description
[0024] The above and other objects, features, and advantages of exemplary embodiments of this application will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of this application are illustrated by way of example and not limitation, with the same or corresponding reference numerals denoteing the same or corresponding parts, wherein:
[0025] Figure 1 A schematic diagram of the internal structure of a shearing die is shown.
[0026] Figure 2 The diagram schematically illustrates the internal structure of a shearing die from another angle.
[0027] Figure 3 A schematic diagram of a three-dimensional structure of a shearing die is shown.
[0028] Figure 4 A schematic diagram of a partial structure of a shearing die is shown.
[0029] Figure 5 A schematic diagram of another partial structure of a shearing die is shown.
[0030] Figure 6 A schematic diagram of the internal structure of a second embodiment of a shearing die is shown.
[0031] Figure 7 A schematic diagram of the internal structure of another state of a second embodiment of a shearing die is shown.
[0032] Figure 8 A schematic diagram of another angle of a second embodiment of a shearing die is shown;
[0033] Figure 9 A schematic diagram of another first shearing structure of a shearing die is shown.
[0034] Figure 10 A schematic diagram of the structure of the first module of a shearing die is shown.
[0035] Figure 11 A schematic diagram of the structure of the second module of a shearing die is shown.
[0036] Explanation of icon numbers:
[0037] 1. First module; 11. First shearing structure; 111. Protrusion; 1111. Protrusion body; 1112. Curved surface; 1113. First plane; 112. Shearing body; 12. Mounting bracket; 13. Drive unit; 14. Guide rod; 2. Second module; 21. Module body; 22. Second shearing structure; 3. Product; X, third direction; Y, second direction; Z, first direction. Detailed Implementation
[0038] Exemplary embodiments of this application will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of this application are shown in the drawings, it should be understood that this application may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of this application and to fully convey the scope of this application to those skilled in the art.
[0039] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure pertains.
[0040] Currently, in mold processing, some shearing dies employ a shearing blade structure, with both the upper and lower blades designed in a stepped shape. During the cutting process, the two blades move in an alternating motion, utilizing the resulting shearing force to cut the product. However, for some high-strength, difficult-to-cut products, traditional shearing dies require applying significant cutting pressure to achieve effective cutting.
[0041] To address the aforementioned technical problems, this application provides a shearing die that can reduce the pressure required to cut products, thereby expanding the applicability of the shearing die.
[0042] Example 1
[0043] like Figure 1 and Figure 6 As shown, a shearing die includes a first module 1 and a second module 2. The first module 1 has a first shearing structure 11, which has a plurality of protrusions 111, and gaps are provided between the ends of the plurality of protrusions 111. The second module 2 has a second shearing structure 22. The first shearing structure 11 is movable relative to the second shearing structure 22 along a first direction Z. When the first shearing structure 11 is in a first position, the plurality of protrusions 111 and the projection of the second shearing structure 22 along a second direction Y are misaligned. When the first shearing structure 11 is in a second position, the plurality of protrusions 111 and the projection of the second shearing structure 22 along the second direction Y overlap to complete the shearing action. The first direction Z and the second direction Y are perpendicular.
[0044] like Figure 10 As shown, the first module 1 is a relatively movable part of the shearing die. The first module 1 can be connected to the drive unit 13 or a drive device (such as a hydraulic cylinder, pneumatic cylinder, or mechanical stamping mechanism) to drive the first shearing structure 11 on it to move relative to another part along the first direction Z. For example, as Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6As shown, the first module 1 may include a mounting frame 12, a drive unit 13, a first shearing structure 11, and a guide rod. The drive unit 13 is mounted on the mounting frame 12, the guide rod extends along the first direction Z, the first shearing structure and the guide rod are guided and connected, and the drive unit 13 and the first shearing structure are fixedly connected, so that the drive unit 13 drives the first shearing structure 11 to move relative to another part along the first direction Z under the guidance of the guide rod.
[0045] like Figure 11 As shown, the second module 2 is another part of the shearing mold. It can be a fixed part or a part that moves relative to the first module 1. It is provided with a second shearing structure 22 that cooperates with the first shearing structure 11 to complete the shearing action. The second module 2 can include the mold body and the second shearing structure 22. The second shearing structure 22 can be connected to the module body 21 or integrally formed with the module body 21 as part of the mold body. For example, the first module 1 can be the upper mold and the second module 2 can be the lower mold, or the first module 1 can be the lower mold and the second module 2 can be the upper mold; or, depending on the specific mold structure, the first module 1 can be the moving mold and the second module 2 can be the fixed mold.
[0046] The first shearing structure 11 is disposed on the first module 1 and is used to actively cut into the material during the shearing process. The structure includes, but is not limited to, a shearing blade with multiple protrusions 111, wherein gaps are formed between the multiple protrusions 111 to achieve segmented shearing of the product 3.
[0047] The second shearing structure 22 is disposed on the second module 2 and is used in conjunction with the first shearing structure 11 to provide support or reverse shearing force during the shearing process. The second shearing structure 22 can be a flat cutting edge, a stepped cutting edge, a corresponding groove or hole structure, or other structural forms that can form a shearing action with the first shearing structure 11.
[0048] For example, such as Figure 6 As shown, the first shearing structure may include a shearing body 112. The second side of the shearing body 112 is connected to the driving part 13, and the first side of the shearing body 112 is connected to multiple protrusions. The first side may be a planar structure, suitable for conventional shearing. The first side may also have a certain tilt angle to reduce the initial shearing force; the first side may also be distributed in multiple steps to achieve layer-by-layer shearing.
[0049] like Figure 6 As shown, the first position refers to the initial position of the first shearing structure 11 when the shearing die has not performed a shearing action. In this position, the projections of the multiple protrusions 111 and the second shearing structure 22 in the second direction Y are misaligned, meaning they are not aligned and are spaced a certain distance apart in the first direction Z; no shearing action has yet occurred. Figure 7 and Figure 8As shown, the second position refers to the position of the first shearing structure 11 relative to the second shearing structure 22 after the shearing die has moved during or after the shearing action. In this position, the multiple protrusions 111 overlap with the projection of the second shearing structure 22 in the second direction Y, that is, the two partially or completely overlap, thereby achieving the shearing and separation of the material.
[0050] like Figure 1 and Figure 6 As shown, the first direction Z is the direction of movement of the first shearing structure 11 relative to the second shearing structure 22, used to drive the shearing action. For example, in a typical stamping shearing die, the first direction Z is usually vertical (up and down movement), but in some special structures it can also be an inclined direction. The second direction Y is a direction perpendicular to the first direction Z, which can be the lateral direction of the sheared part of the product 3. This direction is used to describe the relative positional relationship between the two shearing structures (such as whether the projections overlap or misalign).
[0051] When the first module 1 drives the first shearing structure 11 to move relative to the second module 2 along the first direction Z (e.g., vertical or inclined direction), the first shearing structure 11 and the second shearing structure 22 cooperate with each other to gradually shear and separate the product 3 segment by segment, thereby completing the cutting operation.
[0052] The protrusions 111 are portions disposed on the first shearing structure 11. Their ends are capable of first cutting into the product 3 material during the cutting process and working in conjunction with the second shearing structure 22 to complete the cutting of the product 3. These protrusions 111 can be evenly distributed along the first side of the first shearing structure 11, ensuring uniform pressure distribution on the product 3 material and contributing to a smooth and continuous shearing process. To adapt to specific material properties and shearing requirements, a non-uniform distribution design can also be adopted to optimize shearing efficiency or apply greater shearing force to specific areas. The protrusions 111 can also be stepped structures, gradually cutting into the material through multiple layers, reducing the pressure required for a single cut, suitable for materials that are difficult to cut. The front end of the protrusions 111 can also have a certain slope to facilitate easier initiation of the cutting process, reduce initial resistance, and improve shearing efficiency. The protrusions 111 can also combine one or more of the above characteristics, such as adding a stepped design to the inclined surface, or combining protrusions 111 of different heights to meet more complex and varied shearing needs. Figure 5 As shown, the protrusion may include a protruding body 1111 and an end, the end of which may be a plane or a curved surface 1112.
[0053] Compared to existing technologies, the shearing die provided in this application, by setting multiple protrusions 111 in the first shearing structure 11 and creating gaps between the ends of the protrusions 111, allows the ends of the protrusions 111 to cut into the product 3 first during the cutting process, followed by the gap areas participating in the cutting sequentially. This transforms the original large-area simultaneous cutting method into a segmented, step-by-step cutting mode. This method effectively reduces the contact area between the blade and the product 3 in the same plane during the shearing process, increases the pressure per unit area, makes the material easier to cut, and reduces the pressure required to cut the material. This allows the shearing die to cut materials with higher strength, thus expanding the applicability of the shearing die.
[0054] like Figure 4 and Figure 5 As shown, in some modified embodiments of this application, the cross-sectional area of the protrusion 111 gradually decreases along the first direction Z, which points from the first position to the second position. The gradual decrease in the cross-sectional area of the protrusion 111 along the first direction Z means that the protrusion 111 gradually shrinks from the side closer to the first shearing structure 11 to the side farther away from the first shearing structure 11. When the first shearing structure 11 moves along the first direction Z (e.g., vertically downward), the cross-sectional area of the portion of the protrusion 111 in contact with the material being sheared gradually increases from the end to the root, forming a structure similar to a cone or wedge. The gradually decreasing cross-sectional area design makes the end of the protrusion 111 sharper, which helps reduce the initial resistance when cutting into the material and improves shearing efficiency. Under the same applied pressure, as the cross-sectional area decreases, the pressure per unit area increases, thereby more effectively separating difficult-to-cut materials. The tapering structure of the protrusion 111 can guide the gradual transmission of shearing force, making the material more evenly stressed during shearing and reducing defects such as uneven fracture or burrs. By optimizing the shape of the protrusion 111, effective cutting can be achieved under relatively small total pressure, adapting to the application needs of more small and medium-sized presses. The protrusion 111 can be a frustum-shaped or pyramidal structure with a certain inclination angle on its sidewalls; the end of the protrusion 111 can be a triangular, trapezoidal, or polygonal cross-section, gradually transitioning to a smaller size along the first direction Z; the cross-sectional area of the protrusion 111 can decrease linearly or non-linearly (such as parabolic or exponentially), and can be adapted to the material properties.
[0055] like Figure 5As shown, in some modified embodiments of this application, the ends of the protrusions 111 are provided with curved surfaces 1112, and multiple protrusions 111 together form a wave-like structure. The ends of the protrusions 111 are set as curved surface 1112 structures, such as arc-shaped, elliptical, or other smoothly transitioned curved surfaces. Multiple protrusions 111 are arranged sequentially along the shearing direction, and their end contours are connected to each other, forming a wave-like shearing edge structure. This design helps to achieve a smoother cutting process, reduce stress concentration, improve the continuity of the shearing process and the quality of material separation, and is particularly suitable for materials with high toughness or high requirements for the smoothness of the cut surface.
[0056] like Figure 4 As shown, in some modified embodiments of this application, the protrusion 111 is a pyramidal structure; multiple protrusions 111 together form a serrated structure; the cross-sectional area of the pyramidal protrusion 111 gradually decreases from the root to the tip, forming a sharp cutting end. Multiple pyramidal protrusions 111 are arranged sequentially along the shearing direction, with recessed areas formed between adjacent protrusions 111, collectively constituting a serrated shearing edge structure. This structure can significantly increase the pressure per unit area, enhance the initial cutting capability, and is suitable for shearing operations on high-strength, high-hardness, or difficult-to-cut materials, helping to reduce the pressure required for cutting and improve shearing efficiency.
[0057] like Figure 9 As shown, in some modified embodiments of this application, the protrusion 111 is a frustum-shaped structure, and a first plane 1113 is provided at the end of the protrusion 111, which is perpendicular to the first direction Z. The protrusion 111 is a frustum-shaped structure, and its shape is composed of two parallel polygonal faces and the side connecting them, with an overall stepped or trapezoidal cross-section structure. The first plane 1113 at the end of the protrusion 111 is perpendicular to the first direction Z (i.e., the shearing motion direction), which is used to maintain a stable contact with the material being sheared during the shearing process, while preventing the end of the protrusion 111 from being too sharp and prone to breakage. This structure ensures sufficient cutting strength while improving shearing stability and force uniformity, making it suitable for applications requiring high shearing accuracy and repeatability.
[0058] like Figure 4 and Figure 5As shown, in some modified embodiments of this application, the side of the protrusion 111 near the second shear structure 22 and the side of the second shear structure 22 near the protrusion 111 are adapted to each other. The side of the protrusion 111 near the second shear structure 22 (i.e., the side facing the second shear structure 22) and the side of the second shear structure 22 near the protrusion 111 (i.e., the mating surface facing the protrusion 111) have matching geometric shapes. The two oppositely arranged sides are not completely parallel, but are designed as inclined surfaces, curved surfaces, or other mating surfaces with consistent contours according to the shearing requirements, so that the two can fit more closely during the shearing process, forming a good guiding and supporting relationship.
[0059] like Figure 9 As shown, in some modified embodiments of this application, the plurality of protrusions 111 are arranged at least partially along a third direction X, which is perpendicular to the first direction Z and the second direction Y; as Figure 7 and Figure 8 As shown, the second shear structure 22 is a stepped structure, and the side of the protrusion 111 near the second shear structure 22 is adapted to the side wall of the stepped structure.
[0060] The third direction X is perpendicular to both the first direction Z and the second direction Y. Multiple protrusions 111 are arranged sequentially, at least partially along the third direction X, forming an orthogonal layout in three-dimensional space. When the first shearing structure 11 moves along the first direction Z (e.g., the vertical direction) to perform a shearing action, the multiple protrusions 111 are distributed along the third direction X (e.g., another axis within the horizontal plane), forming a linear or stepped arrangement to accommodate the shearing requirements of products 3 with different widths or thicknesses. The second shearing structure 22 is a stepped structure, which may include a stepped surface for cooperating with the first shearing structure 11 to complete the shearing. The side of the protrusion 111 closest to the second shearing structure 22 has a contour shape adapted to the sidewall of the stepped structure, such as an inclined surface, an arc surface, or a polygonal fold, allowing them to fit well together during the shearing process, achieving stable guidance and efficient cutting. The adaptation design of the protrusion 111 and the sidewall of the stepped structure enhances the fitting accuracy between the shearing blades, reducing the risk of shearing offset or misalignment.
[0061] like Figure 4As shown, in some modified embodiments of this application, multiple protrusions 111 are distributed along a ring-shaped path, and the second shearing structure 22 is a mating hole. The side of the protrusions 111 near the second shearing structure 22 is adapted to the inner wall of the mating hole. The distribution of the protrusions 111 along the ring-shaped path can be arranged in a circular shape around a central axis, or along other closed shapes such as ellipses, rectangles, and irregular shapes. This design is particularly suitable for rotary shearing, punching, or cutting operations of ring-shaped products 3. The second shearing structure 22 is a mating hole that mates with the protrusions 111. The position of the mating hole corresponds one-to-one with the protrusions 111 on the first shearing structure 11, and is used to accommodate and guide the protrusions 111 into the shearing position during the shearing process. The side of the protrusions 111 near the second shearing structure 22 (i.e., the outer wall facing the mating hole) is adapted to the inner wall surface of the mating hole. The two can be in the form of parallel fit, inclined fit, arc surface fit, or polygonal contour matching, etc., to achieve good guidance and shearing stability. For example, the protrusion 111 can be a columnar, conical, or polygonal structure, evenly distributed along the annular path; the mating hole can be a through hole or a blind hole, and its shape corresponds to the protrusion 111, such as circular, elliptical, or polygonal. The inner wall of the mating hole can also be provided with a guide slope or a lubricating coating to enhance sliding performance.
[0062] like Figure 5 As shown, in some modified embodiments of this application, a distance is set between the multiple protrusions 111. The distance between the protrusions 111 is not arbitrarily determined, but is the result of comprehensive consideration of factors such as material properties, shearing requirements, and mold structure. For example, for harder or thicker materials, a larger distance may be required to ensure sufficient shearing force; while for thin or soft materials, a smaller distance can be used to increase the initial shearing area and improve the cutting quality. In high-precision shearing operations, the protrusions 111 maintain a small but consistent distance to ensure that each part receives uniform shearing treatment; for the cutting of large-size plates or composite materials, the larger distance between the protrusions 111 can be adjusted according to the material properties and the expected cutting effect to optimize the shearing path. By reasonably setting the distance between the protrusions 111, the required cutting pressure can be significantly reduced while ensuring shearing efficiency, making the entire shearing process more energy-efficient and effective. Appropriate spacing helps to achieve a more uniform shearing distribution and avoids product damage or irregular breakage due to local stress concentration.
[0063] like Figure 6 and Figure 7As shown, in some modified embodiments of this application, the first module 1 has a drive unit 13, which is connected to the first shearing structure 11. The drive unit 13 can drive the first shearing structure 11 to move along the first direction Z. The drive unit 13 refers to an actuator that provides power and drives the first shearing structure 11 to move relative to the second shearing structure 22. Its function is to convert energy (such as electrical energy, hydraulic energy, pneumatic energy, or mechanical energy) into linear or reciprocating motion, thereby realizing the shearing operation on the material of product 3.
[0064] The drive unit 13 can utilize a hydraulic cylinder as the actuator, using hydraulic oil pressure to drive the piston rod, resulting in high output force, smooth operation, and high control precision, suitable for heavy-duty shearing operations requiring large cutting forces. The drive unit 13 can also be driven by a pneumatic cylinder, using compressed air to drive the shearing structure, offering fast response, simple structure, and low cost, suitable for light or medium-sized shearing equipment. The drive unit 13 can also be electrically driven, including servo motors, stepper motors, etc., and can be used with lead screws, guide rails, or gear and rack transmission mechanisms, offering high control precision and strong programmability, suitable for highly automated precision shearing systems. The drive unit 13 can also include an eccentric wheel, crank-slider mechanism, cam mechanism, etc., driving the shearing structure through mechanical transmission, resulting in a compact structure that requires no external power supply, commonly used in traditional punch presses or specialized shearing equipment.
[0065] like Figure 1 As shown, in some modified embodiments of this application, the hardness of the first shear structure 11 is greater than that of the second shear structure 22; the first module 1 is disposed above the second module 2, and the first shear structure 11 and the second shear structure 22 are misaligned along the projection of the first direction Z.
[0066] The first shearing structure 11 has a higher hardness than the second shearing structure 22. This design aims to enhance the dominant role of the first shearing structure 11 in the shearing process by improving its wear resistance and cutting ability, while reducing excessive wear on the second shearing structure 22 and extending the overall mold's service life. For example, the first shearing structure 11 can be made of high-hardness materials such as hardened steel, high-speed steel, or cemented carbide, while the second shearing structure 22 can be made of ordinary carbon steel or surface-treated steel, balancing strength and cost.
[0067] In addition, as the cross-sectional area of the protrusion 111 gradually decreases along the first direction Z, the end strength of the protrusion 111 is relatively low. By placing the first module 1 above the second module 2 and making the hardness of the first shearing structure 11 and the protrusion 111 greater than the hardness of the second shearing structure 22, the brittle fracture problem that may be caused by the use of high-hardness materials for both the upper and lower molds is avoided while ensuring that the first shearing structure 11 is sufficiently hard. At the same time, the appropriate toughness of the second shearing structure 22 is used to absorb part of the impact energy, improve the stability of the shearing process, and reduce the risk of the end of the protrusion 111 breaking.
[0068] Furthermore, the projections of the first shearing structure 11 and the second shearing structure 22 along the first direction Z are staggered. That is to say, in the view perpendicular to the shearing motion direction (i.e., the first direction Z), the cutting edges or shearing areas of the two do not completely overlap, but are offset to a certain extent, thus reserving a cutting path for subsequent shearing actions.
[0069] like Figure 1 As shown, in some modified embodiments of this application, multiple first shear structures 11 and multiple second shear structures 22 are provided, and the multiple first shear structures 11 and multiple second shear structures 22 correspond one-to-one.
[0070] Multiple first shearing structures 11 and multiple second shearing structures 22 are provided, and each first shearing structure 11 corresponds to a second shearing structure 22, together forming a set of shearing units. For example, multiple first shearing structures 11 can be provided on the first module 1 and can move along the first direction Z under the action of the drive unit 13; multiple second shearing structures 22 can be provided on the second module 2, with positions corresponding to the first shearing structures 11, to cooperate in completing the shearing action on the product 3. Each set of shearing units consists of one first shearing structure 11 and one second shearing structure 22, which respectively serve as the active shearing end and the passive support end during the shearing process, realizing synchronous or segmented shearing operations on different parts of the product 3.
[0071] Multiple shearing units can act simultaneously or sequentially on the surface of the product, increasing the effective shearing area per unit time, which is especially suitable for wide materials or multi-point cutting requirements. Each shearing unit can be independently designed according to actual needs (such as the number, shape, hardness, etc. of protrusions 111) to adapt to shearing operations of irregularly shaped materials, composite materials, or multi-layer structures.
[0072] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A shearing die, characterized in that, include: A first module has a first shearing structure, which has multiple protrusions and gaps between the ends of the multiple protrusions. The second module has a second shearing structure; Wherein, the first shearing structure is capable of moving relative to the second shearing structure along a first direction; when the first shearing structure is in a first position, the plurality of protrusions are misaligned with the projection of the second shearing structure along a second direction; when the first shearing structure is in a second position, the plurality of protrusions overlap with the projection of the second shearing structure along a second direction to complete the shearing action; the first direction and the second direction are perpendicular.
2. The shearing die according to claim 1, characterized in that, The cross-sectional area of the protrusion gradually decreases along the first direction, which points from the first position to the second position.
3. The shearing die according to claim 2, characterized in that, The end of the protrusion is provided with a curved surface, and multiple protrusions together form a wave-like structure; Alternatively, the protrusion may be a pyramidal structure; The multiple protrusions together form a serrated structure; Alternatively, the protrusion may be a frustum-shaped structure, and the end of the protrusion may be provided with a first plane, which is perpendicular to the first direction.
4. The shearing die according to any one of claims 1-3, characterized in that, The protrusion is adapted to the side of the second shear structure that is close to the second shear structure.
5. The shearing die according to claim 4, characterized in that, The plurality of protrusions are arranged at least partially along a third direction, which is perpendicular to the first and second directions; the second shear structure is a stepped structure, and the side of the protrusions near the second shear structure is adapted to the sidewall of the stepped structure.
6. The shearing die according to claim 4, characterized in that, The protrusions are distributed along an annular path, the second shear structure is a mating hole, and the side of the protrusion closest to the second shear structure is adapted to the inner wall of the mating hole.
7. The shearing die according to claim 1, characterized in that, The multiple protrusions are spaced apart by a predetermined distance.
8. The shearing die according to claim 1, characterized in that, The first module has a driving unit, which is connected to the first shearing structure, and the driving unit can drive the first shearing structure to move along a first direction.
9. The shearing die according to claim 2, characterized in that, The hardness of the first shear structure is greater than that of the second shear structure; The first module is positioned above the second module, and the first shearing structure and the second shearing structure are distributed with their projections staggered along the first direction.
10. The shearing die according to claim 1, characterized in that, Multiple first shear structures and multiple second shear structures are provided, and the multiple first shear structures and multiple second shear structures correspond one-to-one.