Shell stamping die convenient to change

Abstract

The utility model discloses a shell stamping die convenient to change, which relates to the field of die design and comprises an upper die and a lower die. A cavity is mounted on the lower mold in a lifting sliding fit manner; a first mold opening surface is formed on the upper side surface of the cavity; a supporting block is fixedly installed on the lower mold, an open groove is formed in the side, close to the mold cavity, of the supporting block, at least two replacement blocks are detachably installed in the open groove, replacement curved surfaces are formed on the upper side surfaces of the replacement blocks, and the inner side edges of the replacement curved surfaces are aligned with the first mold opening surface; compared with the prior art, the supporting block is arranged, the replacement block is detachably installed in the open groove of the supporting block, part of the appearance of a stamped product can be adjusted by replacing the replacement blocks with different replacement curved surfaces, and when shell products with different shapes are produced in batches, the whole structure of the shell is not changed, so that the shell is convenient to replace. And the appearance of the product can be changed only by independently replacing the corresponding replacement block without replacing the whole mold, so that the production efficiency is improved, and the mold cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mold design, and in particular to a shell stamping mold that is easy to modify. 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 undergo plastic deformation, thereby obtaining the desired parts.

[0003] The prior art discloses a cooling device for a stamping die and a stamping die (Announcement No.: CN221537881U), a side-limiting stamping die (Announcement No.: CN220216399U), and a stamping die for hardware processing (Announcement No.: CN212190762U). In these existing stamping dies, it is generally necessary to customize the die core and cavity according to the structure of the product itself.

[0004] However, for mass-produced shell products, it is often necessary to make slight adjustments to the product's shape to ensure product diversity, while the main structure of the product needs to remain unchanged. When some parts of the shell product's shape are adjusted, the common method on the market is to customize multiple different molds based on the shape structure. This method requires very high mold costs, and changing molds in the stamping equipment is also very inconvenient.

[0005] Therefore, it is necessary to design a shell stamping die that can independently change part of the shape, that is, to design a shell stamping die that is easy to modify, in order to solve the technical problems mentioned above. Utility Model Content

[0006] To overcome the shortcomings mentioned above, this utility model provides a technical solution that can solve the above problems.

[0007] A shell stamping die with convenient mold modification includes an upper die and a lower die, which are mutually clamped for stamping. A cavity is mounted on the lower die in a sliding fit, and a first mold opening surface is formed on the upper side of the cavity. A support block is fixedly mounted on the lower die, and a slot is formed on the side of the support block near the cavity. At least two replacement blocks are detachably mounted in the slot. A replacement curved surface is formed on the upper surface of the replacement blocks, and the inner edge of the replacement curved surface is aligned with the first mold opening surface. The surfaces of the support block near the cavity and the replacement blocks near the cavity are flush, and the cavity moves up and down along the sides of the support block and the replacement blocks. One or more right-angle brackets are fixedly mounted on the support block, and a snap-fit ​​protrusion is formed at the upper end of the right-angle bracket. The snap-fit ​​protrusion is positioned above the replacement block. One or more clearance slots are formed on the bottom side of the upper die, and during mold closing, the snap-fit ​​protrusions are inserted into the clearance slots with corresponding clearance fit.

[0008] More preferably, a number of positioning blocks are fixedly installed on the lower mold, and the cavity is lifted and slidably installed between the number of positioning blocks.

[0009] More preferably, a lifting mechanism is provided on the bottom side of the lower mold, and the lifting mechanism drives the cavity to move up and down.

[0010] More preferably: at least two positioning bolts are fixedly installed on the lower mold, at least two vertical through holes are formed on the cavity, a limit ring is formed at the upper end of the positioning bolt, the positioning bolts are installed in the through holes in a corresponding lifting and sliding fit, and the limit ring is set above the through hole.

[0011] More preferably, a core is detachably installed on the lower side of the upper mold by screws, and a second mold opening surface is formed on the bottom side of the core. When the mold is closed, the second mold opening surface presses against the first mold opening surface for stamping.

[0012] More preferably: the cavity is formed with several mounting grooves, and limiters are fixedly installed in the mounting grooves. The bottom side of the core is formed with several clearance positions. When the mold is closed, the limiters are inserted into the clearance positions with corresponding gaps.

[0013] More preferably: the bottom side of the slot is formed with at least two first keyways, the bottom side of the replacement block is formed with a second keyway, and a first flat key is installed between the first keyway and the second keyway with a clearance fit.

[0014] More preferably, the replacement block is detachably installed in the slot by screws, two adjacent replacement blocks are fitted together, and the mating surfaces between two adjacent replacement blocks are perpendicular to the upper surface of the lower mold.

[0015] More preferably: the bottom side of the support block is formed with at least two third keyways, and the directions between two adjacent third keyways are perpendicular to each other. The lower mold is formed with at least two fourth keyways, and the fourth keyways are arranged one-to-one below the third keyways. A second flat key is installed between the third keyway and the fourth keyway with a gap fit.

[0016] More preferably: the cavity has at least two vertical grooves formed on the side near the support block and the replacement block, and the support block and the replacement block have vertical protrusions formed on the side near the cavity, with the vertical protrusions slidingly fitted into the vertical grooves in a one-to-one correspondence.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. A support block is set up, and a replacement block can be detachably installed in the slot of the support block. The replacement block with different replacement curved surfaces can be replaced to adjust part of the shape of the stamped product. When mass-producing shell products with different shapes, since the overall structure of the shell does not change, only the corresponding replacement block needs to be replaced to change the shape. There is no need to replace the entire mold, which is convenient and quick.

[0019] 2. After the replacement block is installed, when the stamping die is closed, the inner edge of the replacement curved surface will be aligned with the side edge of the first mold opening surface, thereby ensuring the quality of the stamping and reducing the probability of product defects.

[0020] 3. During mold opening, the cavity can be driven to rise, allowing the product to separate from the replacement surface of the replacement block before it does, thus achieving rapid demolding and improving production efficiency.

[0021] 4. The right-angle bracket allows for the replacement of blocks of different thicknesses, making it more widely applicable. Different shaped shell products can be selectively produced. The shell product's shape can be customized simply by using the cover plate replacement block structure, reducing design costs.

[0022] 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

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the structure of this utility model when the mold is closed;

[0025] Figure 2 This is a schematic diagram of the structure of this utility model during mold opening;

[0026] Figure 3 This is an exploded structural diagram of the present invention;

[0027] Figure 4 yes Figure 3 Structural diagram of the core, cavity, support block, and replacement block;

[0028] Figure 5 This is an exploded structural diagram of the present invention from another perspective;

[0029] Figure 6 yes Figure 5 A schematic diagram of the structure of the core, cavity, support block and replacement block.

[0030] The figure shows: 1. Upper mold; 2. Lower mold; 3. Cavity; 4. First mold opening surface; 5. Support block; 6. Groove; 7. Replacement block; 8. Replacement curved surface; 9. Right-angle bracket; 10. Snap-fit ​​protrusion; 11. Clearance groove; 12. Positioning block; 13. Lifting mechanism; 14. Positioning bolt; 15. Vertical through hole; 16. Limiting ring; 17. Core; 18. Second mold opening surface; 19. Mounting groove; 20. Limiting component; 21. Clearance; 22. First keyway; 23. Second keyway; 24. First flat key; 25. Third keyway; 26. Fourth keyway; 27. Second flat key; 28. Vertical slide groove; 29. ​​Vertical protrusion. Detailed Implementation

[0031] 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.

[0032] 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.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] like Figure 1-6 As shown, the present invention provides a convenient mold-modification outer shell stamping die, comprising an upper die 1 and a lower die 2, wherein the upper die 1 and the lower die 2 are mutually clamped for stamping.

[0037] The lower mold 2 is equipped with a cavity 3 through a sliding fit, and the upper side of the cavity 3 is formed with a first mold opening surface 4.

[0038] A support block 5 is fixedly installed on the lower mold 2. A slot 6 is formed on the side of the support block 5 near the cavity 3. At least two replacement blocks 7 are detachably installed in the slot 6. A replacement curved surface 8 is formed on the upper surface of the replacement block 7. The inner edge of the replacement curved surface 8 is aligned with the first mold opening surface 4.

[0039] The support block 5 and the replacement block 7 are flush with each other on the side surface of the cavity 3, and the cavity 3 moves up and down on the sides of the support block 5 and the replacement block 7.

[0040] One or more right-angle brackets 9 are fixedly installed on the support block 5. The upper end of the right-angle bracket 9 is formed with a snap-fit ​​protrusion 10. The snap-fit ​​protrusion 10 is set above the replacement block 7. One or more clearance grooves 11 are formed on the bottom side of the upper mold 1. When the mold is closed, the snap-fit ​​protrusion 10 is inserted into the clearance groove 11 with a corresponding gap fit.

[0041] The principle is as follows: A support block 5 is set up, and a replacement block 7 can be detachably installed in the slot 6 of the support block 5. The replacement block 7 with different replacement curved surfaces 8 can be replaced to adjust part of the shape of the stamped product. When mass-producing shell products with different shapes, only the corresponding replacement block 7 needs to be replaced, without replacing the entire mold, which is convenient and quick. After the replacement block 7 is installed, when the stamping mold is closed, the inner edge of the replacement curved surface 8 will be aligned with the side edge of the first mold opening surface 4, thereby ensuring the quality of the stamping and reducing the probability of product defects. When the mold is opened, the cavity 3 can be driven to rise, allowing the product to separate from the replacement curved surface 8 of the replacement block 7, which can achieve a rapid demolding effect and improve production efficiency. The right-angle bracket 9 can replace the replacement block 7 with different thicknesses, making it more widely applicable. Different shapes of shell products can be selectively produced. The shape of the shell product can be customized with just the structure of the cover plate replacement block 7, reducing design costs.

[0042] Even better: Several positioning blocks 12 are fixedly installed on the lower mold 2, and the cavity 3 is slidably installed between the positioning blocks 12; this can ensure the stable lifting and lowering movement of the cavity 3 on the lower mold 2.

[0043] Even better: The bottom side of the lower mold 2 is provided with a lifting mechanism 13, which drives the cavity 3 to move up and down; the lifting mechanism 13 can be used to drive the cavity 3 to rise, realize the action of rapid demolding, and speed up the efficiency of product stamping.

[0044] More preferably: at least two positioning bolts 14 are fixedly installed on the lower mold 2, and at least two vertical through holes 15 are formed on the cavity 3. The upper end of the positioning bolt 14 is formed with a limit ring 16. The positioning bolt 14 is installed in the through hole in a one-to-one sliding fit, and the limit ring 16 is set above the through hole. The limit ring 16 of the positioning bolt 14 can be used to limit the lifting stroke of the cavity 3, so as to ensure that the cavity 3 will not separate from the lower mold 2 during operation, thereby avoiding damage to the stamping die.

[0045] More preferably: the lower side of the upper mold 1 is detachably mounted with a core 17 by screws, and the bottom side of the core 17 is formed with a second mold opening surface 18. When the mold is closed, the second mold opening surface 18 is pressed on the first mold opening surface 4 for stamping and forming; the stamping and forming of plate-shaped products can be achieved by pressing the mold opening surfaces of the core 17 and the cavity 3 together.

[0046] Even better: the cavity 3 is formed with a plurality of mounting grooves 19, and the mounting grooves 19 are fixedly installed with limiting parts 20. The bottom side of the core 17 is formed with a plurality of clearance positions 21. When the mold is closed, the limiting parts 20 are inserted into the clearance positions 21 in a corresponding gap fit. This can effectively limit the precise positioning of the sheet material before stamping and reduce the probability of defects in stamping.

[0047] Even better: the bottom side of the slot 6 is formed with at least two first keyways 22, the bottom side of the replacement block 7 is formed with a second keyway 23, and a first flat key 24 is installed between the first keyway 22 and the second keyway 23 with a clearance fit; so that the installation position of the replacement block 7 is more accurate and the quality of the product during stamping is guaranteed.

[0048] More preferably, the replacement block 7 is detachably installed in the slot 6 by screws, and two adjacent replacement blocks 7 are fitted together, and the mating surfaces between two adjacent replacement blocks 7 are perpendicular to the upper surface of the lower mold 2; a single replacement block 7 can be removed for replacement, which facilitates mold modification operations.

[0049] More preferably, the bottom side of the support block 5 is formed with at least two third keyways 25, and the directions between two adjacent third keyways 25 are perpendicular to each other. The lower mold 2 is formed with at least two fourth keyways 26, and the fourth keyways 26 are respectively arranged below the third keyways 25. The third keyways 25 and the fourth keyways 26 are respectively fitted with a second flat key 27 with a gap fit. This makes the installation and positioning of the support block 5 on the lower mold 2 more accurate, thereby ensuring the stamping accuracy of the outer shell product.

[0050] More preferably: the cavity 3 has at least two vertical grooves 28 formed on the side near the support block 5 and the replacement block 7, and the support block 5 and the replacement block 7 have vertical protrusions 29 formed on the side near the cavity 3. The vertical protrusions 29 are slidably installed in the vertical grooves 28 in a one-to-one correspondence; this makes the lifting and sliding of the cavity 3 more stable and can be aligned with the edge of the replacement block 7, achieving the technical effect of precise stamping.

[0051] 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. A shell stamping die that is easy to modify, comprising an upper die and a lower die, wherein the upper die and the lower die are mutually engaged for stamping; characterized in that: The lower mold is equipped with a cavity through a sliding and lifting mechanism, and the upper side of the cavity is formed with a first mold opening surface. A support block is fixedly installed on the lower mold. A slot is formed on the side of the support block near the cavity. At least two replacement blocks are detachably installed in the slot. A replacement curved surface is formed on the upper surface of the replacement block. The inner edge of the replacement curved surface is aligned with the first mold opening surface. The support block and the replacement block are flush with each other on the side surface near the cavity, and the cavity moves up and down along the sides of the support block and the replacement block. One or more right-angle brackets are fixedly installed on the support block. The upper end of the right-angle bracket is formed with a snap-fit ​​protrusion. The snap-fit ​​protrusion is set above the replacement block. One or more clearance grooves are formed on the bottom side of the upper mold. When the mold is closed, the snap-fit ​​protrusions are inserted into the clearance grooves one by one with corresponding gap fit.

2. The shell stamping die for easy mold modification according to claim 1, characterized in that: Several positioning blocks are fixedly installed on the lower mold, and the cavity is lifted and slidably installed between the positioning blocks.

3. A shell stamping die with convenient mold modification according to any one of claims 1 or 2, characterized in that: The bottom side of the lower mold is provided with a lifting mechanism, which drives the cavity to move up and down.

4. A shell stamping die that is easy to modify according to claim 3, characterized in that: At least two positioning bolts are fixedly installed on the lower mold, and at least two vertical through holes are formed on the cavity. The upper end of the positioning bolt is formed with a limit ring. The positioning bolts are installed in the through holes in a corresponding sliding fit, and the limit rings are set above the through holes.

5. A shell stamping die that is easy to modify according to claim 1, characterized in that: The upper mold has a core that can be detachably installed on its lower side by screws. The bottom side of the core has a second mold opening surface. When the mold is closed, the second mold opening surface presses against the first mold opening surface to form the mold.

6. A shell stamping die that is easy to modify according to claim 5, characterized in that: The cavity has several mounting grooves, and limiters are fixedly installed in the mounting grooves. The bottom side of the core has several clearance positions. When the mold is closed, the limiters are inserted into the clearance positions with corresponding clearances.

7. A shell stamping die that is easy to modify according to claim 1, characterized in that: The bottom side of the slot is formed with at least two first keyways, and the bottom side of the replacement block is formed with a second keyway. A first flat key is installed between the first keyway and the second keyway with a clearance fit.

8. A shell stamping die that is easy to modify according to any one of claims 1 or 7, characterized in that: The replacement block is detachably installed in the slot by screws. Two adjacent replacement blocks are fitted together, and the mating surfaces of two adjacent replacement blocks are perpendicular to the upper surface of the lower mold.

9. A shell stamping die that is easy to modify according to claim 1, characterized in that: The bottom side of the support block is formed with at least two third keyways, and the directions between two adjacent third keyways are perpendicular to each other. The lower mold is formed with at least two fourth keyways, and the fourth keyways are arranged below the third keyways one by one. A second flat key is installed between the third keyway and the fourth keyway with a gap fit.

10. A shell stamping die that is easy to modify according to claim 1, characterized in that: The cavity has at least two vertical grooves formed on the side near the support block and the replacement block, and the support block and the replacement block have vertical protrusions formed on the side near the cavity. The vertical protrusions are slidably fitted into the vertical grooves one by one.

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