Assembled stamping die

Abstract

The utility model discloses an assembled stamping die, which relates to the field of die design and comprises an upper stamping die and a lower stamping die, a core is fixedly mounted on the bottom side of the upper stamping die, and a cavity is fixedly mounted on the lower stamping die. The cavity comprises a positioning frame, a plurality of cavities and a bottom plate, the positioning frame is fixedly mounted on the lower stamping die, a cavity surface and a lifting groove are formed on the inner side wall of each cavity, an inner cavity structure of the cavity is formed between the cavity surfaces of the cavities and the upper side surface of the bottom plate, and the bottom plate is mounted in the lifting grooves of the cavities in a clearance fit manner; the multiple cavities are fixedly installed on the inner side of the positioning frame through screws, and the splicing face of every two adjacent cavities is perpendicular to the surface of the lower die; compared with the prior art, the inner cavity structure of the cavity is composed of a plurality of cavities, when the structure of a product is slightly modified and adjusted, the cavities at the corresponding positions can be independently disassembled for machining or replacing, the mold does not need to be customized again, and meanwhile batch production of similar products can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of mold design, and in particular to an assembly-type stamping mold. Background Technology

[0002] Stamping dies are special process equipment used in cold stamping to process materials (metal or non-metal) into parts (or semi-finished products). They are called cold stamping dies (commonly known as cold stamping dies). Stamping is a pressure processing method that uses dies mounted on a press to apply pressure to materials at room temperature, causing them to separate or plastically deform, thereby obtaining the desired parts.

[0003] Most stamping dies on the market involve pressing the core and cavity together to produce products of corresponding shapes. However, in today's society, a single product is unlikely to meet market demand. Various similar designs with slight adjustments are required. Changing the shape of a product inevitably requires changing the production mold. Currently, in order to mass-produce various products, a mold needs to be customized for each product, resulting in very high production costs. Another method is mold modification, which involves modifying the original mold. However, mold modification can easily cause wear and tear. In addition, mold modification is very cumbersome, which not only wastes labor costs, but also makes it impossible to process the old products after the mold is modified.

[0004] Therefore, it is necessary to design an assembly-type stamping die to solve the above problems. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model provides a technical solution that can solve the above problems.

[0006] An assembled stamping die includes an upper stamping die and a lower stamping die. A core is fixedly installed on the bottom side of the upper stamping die, and a cavity is fixedly installed on the lower stamping die. The core is pressed into the cavity with a clearance fit to perform a stamping operation.

[0007] The cavity includes a positioning frame, a cavity body, and a base plate. The positioning frame is fixedly installed on the stamping die. Multiple cavities are provided. The inner sidewall of the cavity body is formed with a cavity surface and a lifting groove. The cavity surfaces of the multiple cavities and the upper side of the base plate form the inner cavity structure of the cavity. The base plate is fitted with a clearance fit in the lifting groove of the multiple cavities.

[0008] The multiple cavities are respectively fixedly installed on the inner side of the positioning frame by screws, and the splicing surface of two adjacent cavities is perpendicular to the surface of the lower mold.

[0009] Furthermore, a lifting mechanism is fixedly installed on the bottom side of the lower mold, and the lifting mechanism drives the base plate to move up and down in the lifting slots of multiple cavities.

[0010] Furthermore: the stamping die has four first keyways formed on it, and a first flat key is fixedly installed in the first keyway. The positioning frame is set between the four first flat keys.

[0011] Furthermore: the bottom side of the stamping die is formed with four second keyways, and a second flat key is fixedly installed in the second keyway, with the core disposed between the four second flat keys.

[0012] Furthermore: the upper side of the core is formed with several countersunk holes, which are set through the core. An ejector pin and a spring are installed in the countersunk holes with clearance fit. The lower end of the ejector pin is set with a telescopic countersunk hole, and the spring is installed between the upper end of the ejector pin and the upper stamping die.

[0013] Furthermore, the upper end of the countersunk hole is formed with an internal thread, and a nut is installed in the internal thread in a helical fit. A spring is installed between the ejector pin and the nut.

[0014] Furthermore: at least two positioning posts are fixedly installed in the middle of the core, the bottom end of the positioning posts is formed with a cone, and at least two clearance holes are formed on the base plate. The cones at the bottom end of the positioning posts are inserted into the clearance holes in a one-to-one gap fit for stamping operation.

[0015] Furthermore: upright plates are fixedly installed on both the left and right ends of the bottom side of the upper stamping die, and first U-shaped slots are formed on both the left and right sides of the lower stamping die, with the upright plates corresponding to each other and inserted into the first U-shaped slots with a gap fit.

[0016] Furthermore, thickened parts are formed on both the left and right ends of the upper side of the stamping die, and a second U-shaped slot is formed on the outer side of the thickened part. The second U-shaped slot is set above the first U-shaped slot in a one-to-one correspondence.

[0017] Furthermore: a first height limiting post is fixedly installed at each of the four ends of the bottom side of the upper stamping die, and a second height limiting post is fixedly installed at each of the four ends of the upper surface of the upper stamping die, with the first height limiting post being positioned above the second height limiting post in a corresponding manner.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the inner cavity structure of the cavity is composed of multiple cavities, and the splicing surface between two adjacent cavities is a vertical surface. Therefore, after removing the screws of a single cavity, the single cavity can be removed. When the product structure is slightly modified and adjusted, the corresponding cavity can be disassembled for processing or replacement, which reduces the cost of re-customizing the mold and achieves the effect of assembly-type replacement, which can facilitate the mass production of similar products.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a schematic diagram of the structure of this utility model when the mold is closed;

[0022] Figure 2 This is a schematic diagram of the structure of this utility model during mold opening;

[0023] Figure 3 This is an exploded structural diagram of the present invention;

[0024] Figure 4 This is a schematic diagram of the core structure;

[0025] Figure 5 This is a schematic diagram of the upper stamping die;

[0026] Figure 6 yes Figure 5 A schematic diagram of the exploded structure;

[0027] Figure 7 This is a schematic diagram of the stamping die structure;

[0028] Figure 8 yes Figure 7 A schematic diagram of the explosion structure.

[0029] The figure shows: 1. Upper stamping die; 2. Lower stamping die; 3. Core; 4. Cavity; 41. Positioning frame; 42. Cavity body; 43. Base plate; 5. Cavity surface; 6. Lifting groove; 7. Lifting mechanism; 8. First keyway; 9. First flat key; 10. Second keyway; 11. Second flat key; 12. Countersunk hole; 13. Ejector pin; 14. Nut; 15. Positioning post; 16. Cone; 17. Clearing hole; 18. Vertical plate; 19. First U-shaped slot; 20. Thickened part; 21. Second U-shaped slot; 22. First height limiting post; 23. Second height limiting post. Detailed Implementation

[0030] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0031] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0032] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] like Figure 1-8 As shown, the present invention provides an assembled stamping die, including an upper stamping die 1 and a lower stamping die 2. A core 3 is fixedly installed on the bottom side of the upper stamping die 1, and a cavity 4 is fixedly installed on the lower stamping die 2. The core 3 is pressed into the cavity 4 with a clearance fit to perform the stamping operation.

[0036] The cavity 4 includes a positioning frame 41, a cavity 42, and a base plate 43. The positioning frame 41 is fixedly installed on the stamping die 2. Multiple cavities 42 are provided. The inner sidewall of the cavity 42 is formed with a cavity surface 5 and a lifting groove 6. The cavity surfaces 5 of the multiple cavities 42 and the upper side of the base plate 43 form the inner cavity structure of the cavity 4. The base plate 43 is fitted with a clearance fit in the lifting groove 6 of the multiple cavities 42.

[0037] The multiple cavities 42 are respectively fixedly installed on the inner side of the positioning frame 41 by screws, and the splicing surface of two adjacent cavities 42 is perpendicular to the surface of the lower mold.

[0038] The principle is as follows: when the mold is closed, the upper stamping mold 1 gradually descends, allowing the core 3 to be gradually pressed into the cavity 4, thereby stamping the product. The internal structure of the cavity 4 is composed of multiple cavities 42, and the splicing surface between two adjacent cavities 42 is a vertical surface. Therefore, after removing the screws of a single cavity 42, the single cavity 42 can be removed. When the product structure is slightly modified or adjusted, the corresponding cavity 42 can be disassembled for processing or replacement, reducing the cost of customizing the mold again, achieving the effect of assembly-type replacement, and facilitating the mass production of similar products.

[0039] Furthermore, a lifting mechanism 7 is fixedly installed on the bottom side of the lower mold. The lifting mechanism 7 drives the base plate 43 to move up and down within the lifting grooves 6 in the multiple cavities 42. After stamping, the lifting mechanism 7 can be used to lift the base plate 43, thereby separating the product from the inner cavity of the cavity 4, which facilitates demolding.

[0040] Furthermore: four first keyways 8 are formed on the stamping die 2, and first flat keys 9 are fixedly installed in the first keyways 8. The positioning frame 41 is set between the four first flat keys 9, so that the installation and positioning of the positioning frame 41 is more accurate.

[0041] Furthermore: the bottom side of the upper stamping die 1 is formed with four second keyways 10, and a second flat key 11 is fixedly installed in the second keyway 10. The core 3 is set between the four second flat keys 11, making the installation and positioning of the core 3 more accurate.

[0042] Furthermore: the upper side of the core 3 is formed with several countersunk holes 12, which are set through the core 3. The countersunk holes 12 are fitted with ejector pins 13 and springs with clearance fit inside the countersunk holes 12. The lower end of the ejector pin 13 is set with the countersunk holes 12 for telescoping. The spring is installed between the upper end of the ejector pin 13 and the upper stamping die 1. When the mold is opened, the spring will drive the ejector pin 13 to push against the product, thereby preventing the product from staying on the core 3 and facilitating the demolding of the product.

[0043] Furthermore, the upper end of the countersunk hole 12 is formed with an internal thread, and a nut 14 is screwed into the internal thread for installation. The spring is installed between the ejector pin 13 and the nut 14, making the installation of the spring and the ejector pin 13 more stable.

[0044] Furthermore: at least two positioning posts 15 are fixedly installed in the middle of the core 3. The bottom end of the positioning post 15 is formed with a cone 16. At least two clearance holes 17 are formed on the base plate 43. The cone 16 at the bottom end of the positioning post 15 is inserted into the clearance hole 17 in a one-to-one clearance fit for stamping operation. Positioning holes can be pre-opened on the material to be stamped. During stamping, the bottom end of the positioning post 15 can be inserted into the positioning hole of the material through the cone 16. After the mold is closed, the cone 16 at the bottom end can also fit into the clearance hole 17 to achieve accurate positioning of the material during mold closing and stamping.

[0045] Furthermore: upright plates 18 are fixedly installed on both the left and right ends of the bottom side of the upper stamping die 1, and first U-shaped slots 19 are formed on both the left and right sides of the lower stamping die 2. The upright plates 18 are inserted into the first U-shaped slots 19 with corresponding gaps; making the opening and closing actions between the upper stamping die 1 and the lower stamping die 2 more stable.

[0046] Furthermore, thickened parts 20 are formed on both the left and right ends of the upper side of the stamping die 2, and a second U-shaped slot 21 is formed on the outer side of the thickened part 20. The second U-shaped slot 21 is set above the first U-shaped slot 19 in a one-to-one correspondence; this can ensure the accuracy when the die is opened and closed.

[0047] Furthermore: a first height limiting post 22 is fixedly installed at each of the four ends of the bottom side of the upper stamping die 1, and a second height limiting post 23 is fixedly installed at each of the four ends of the upper surface of the upper stamping die 1. The first height limiting post 22 is positioned above the second height limiting post 23 in a corresponding manner; this can limit the pressing height when the die is closed, and prevent excessive stamping from causing damage to the product.

[0048] This embodiment does not impose any limitation on the shape, material, structure, etc. of this utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. An assembled stamping die, comprising an upper stamping die and a lower stamping die, wherein a core is fixedly mounted on the bottom side of the upper stamping die, and a cavity is fixedly mounted on the lower stamping die, the core being pressed into the cavity with a clearance fit for stamping operation; characterized in that: The cavity includes a positioning frame, a cavity body, and a base plate. The positioning frame is fixedly installed on the stamping die. Multiple cavities are provided. The inner sidewall of the cavity body is formed with a cavity surface and a lifting groove. The cavity surfaces of the multiple cavities and the upper side of the base plate form the inner cavity structure of the cavity. The base plate is fitted with a clearance fit in the lifting groove of the multiple cavities. The multiple cavities are respectively fixedly installed on the inner side of the positioning frame by screws, and the splicing surface of two adjacent cavities is perpendicular to the surface of the lower mold.

2. An assembly type stamping die according to claim 1, wherein: A lifting mechanism is fixedly installed on the bottom side of the lower mold, and the lifting mechanism drives the base plate to move up and down in the lifting slots of multiple cavities.

3. The modular stamping die of claim 1, wherein: The stamping die has four first keyways formed on it, and a first flat key is fixedly installed in the first keyway. The positioning frame is set between the four first flat keys.

4. An assembly according to any one of claims 1 or 3, wherein: The bottom side of the stamping die has four second keyways, and a second flat key is fixedly installed in the second keyway. The core is set between the four second flat keys.

5. The modular stamping die of claim 1, wherein: The upper side of the core is formed with several countersunk holes, which are set through the core. An ejector pin and a spring are installed in the countersunk holes with clearance fit. The lower end of the ejector pin is set with a telescopic countersunk hole, and the spring is installed between the upper end of the ejector pin and the upper stamping die.

6. An assembly punch according to claim 5, wherein: The upper end of the countersunk hole is formed with an internal thread, and a nut is installed in the internal thread in a spiral fit. A spring is installed between the ejector pin and the nut.

7. An assembly according to any one of claims 1 or 5, wherein: At least two positioning posts are fixedly installed in the middle of the core. The bottom end of the positioning post is formed with a cone. At least two clearance holes are formed on the base plate. The cones at the bottom of the positioning posts are inserted into the clearance holes with a gap fit for stamping operation.

8. The modular stamping die of claim 1, wherein: Vertical plates are fixedly installed on both the left and right ends of the bottom side of the upper stamping die, and first U-shaped slots are formed on both the left and right sides of the lower stamping die. The vertical plates are inserted into the first U-shaped slots with corresponding gaps.

9. An assembly press die according to claim 8, wherein: The upper left and right ends of the stamping die are both formed with thickened parts, and the outer side of the thickened parts is formed with a second U-shaped slot. The second U-shaped slots are arranged above the first U-shaped slots one by one.

10. An assembly according to any one of claims 1 or 8 or 9, wherein: The four ends of the bottom side of the upper stamping die are each fixedly equipped with a first height limiting post, and the four ends of the upper surface of the upper stamping die are each fixedly equipped with a second height limiting post. The first height limiting posts are respectively set above the second height limiting posts.

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