Punching die structure for punching side wall of annular structure

Abstract

The utility model discloses a punching die structure for punching the side wall of an annular structure, an upper die is provided with two slotting tools, a lower die is provided with a punching sliding block, two transmission sliding blocks and two reset pieces, the punching sliding block is arranged on the inner side of the projection of an upper die plate, the side wall of the punching sliding block is provided with a side punch, and the transmission sliding blocks are in transmission connection with the reset pieces and can be in transmission connection with the slotting tools during die assembly. According to the utility model, a hole groove on the side wall can be formed by punching from the inner side to the outer side of a product, the displacement of the side punch can be guided and limited to prevent the side punch from scratching the inner wall of the product, the forming yield is ensured, the overall layout of the die is compact, the space of the lower die can be fully utilized, and the purpose of reducing the size of the lower die is achieved; therefore, the assembling precision of matched parts on the die can be improved, the machining precision of all parts can be properly reduced, the die manufacturing cost is reduced, the die manufacturing period is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a stamping die structure for punching the sidewall of an annular structure. Background Technology

[0002] In the design and production of stamping dies, the forming process of the side hole on the product is mostly as follows: a slider is set on the outside of the product on the lower die. When the die is closed, the upper die pushes the slider to move and form the side hole on the product. Therefore, the lower die needs to be equipped with forming parts to support the product, and side punches and sliders are set on its outside. The lower die area is large, but the assembly accuracy and manufacturing accuracy requirements of the relatively moving parts on it are high. The die manufacturing cost is high and difficult to reduce. Especially for some large-sized ring-shaped structural parts with a central protrusion or depression, the lower die is relatively large, the die manufacturing cycle is long and the cost is high. Summary of the Invention

[0003] To address the problems existing in the prior art, this utility model provides a punching die structure for punching the sidewall of a ring structure. It can punch from the inside of the product to the outside to form holes and grooves on the sidewall, and can guide and limit the displacement of the side punch to prevent it from scratching the inner wall of the product, ensuring the yield of molded products. Moreover, the overall layout of the die is compact, which can make full use of the lower die space, thereby reducing the size of the lower die. This can also improve the assembly accuracy of the mating parts on the die, and can appropriately reduce the processing accuracy of each part, reduce the die manufacturing cost, shorten the die manufacturing cycle, and improve production efficiency.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A punching die structure for punching the sidewall of a ring structure, comprising an upper die and a lower die. The upper die includes an upper die base, an upper template, and a release plate, the release plate being movably connected to the upper die base. The lower die includes a lower template and a lower die base, the upper and lower templates respectively fitting to the upper and lower ends of the ring structure product. The upper die also includes two cutting blades, and the lower die includes a punching slider, two transmission sliders, and two reset components.

[0006] Both inserts extend along the mold closing direction and are respectively located on both sides of the upper mold plate. Their upper ends are detachably fixed to the upper mold base, and their lower ends are slidably connected to the anti-detachment plate and can pass through the anti-detachment plate and extend to its outer side when the mold is closed. A first inclined surface is formed on the lower end and / or opposite sidewall of both inserts, and the two first inclined surfaces are arranged opposite to each other.

[0007] The punching slider is slidably mounted on the lower die base and located directly below the upper die plate. Its upper end passes through the lower die plate and extends above it. A horizontally arranged side punch is provided on its upper side wall. One end of the side punch extends to the outside of the punching slider and to the inside of the orthographic projection of the upper die plate. The punching slider is connected to a transmission slider and can slide on the lower die under its push, so as to drive the side punch to punch side holes on the annular structure product side wall surrounding it when the die is closed.

[0008] Each of the transmission sliders is slidably mounted on the lower die and is respectively located below one of the inserts. The opposite ends of the two transmission sliders are respectively connected to a reset member, and their opposite ends extend toward the punching slider. One transmission slider is connected to the punching slider, and the sidewall of the other transmission slider extends to the side of the side punch.

[0009] When the mold is closed, the two inserts can push the two transmission sliders to slide towards each other. One transmission slider pushes the punching slider to drive the side punch to punch side holes on the side wall of the annular structure product. The other transmission slider slides to the side of the end of the side punch to limit its displacement. When the mold is opened, the two inserts leave the two transmission sliders with the upper mold. The two reset members pull the two transmission sliders to reset and drive the punching slider to reset.

[0010] As a further explanation of the above technical solution:

[0011] In the above technical solution, the transmission slider that is connected to the punching slider is also provided with a guide groove adapted to a cutting tool, and a second inclined surface adapted to the first inclined surface is formed on the side wall of the guide groove facing the punching slider.

[0012] In the above technical solution, each of the reset components includes a horizontally arranged pull rod, and each pull rod is fitted with a spring. The opposing ends of the two springs can be detachably fixed to the lower template.

[0013] In the above technical solution, a limiting protrusion adapted to the side punch and extending horizontally is also provided on the outer wall of the transmission slider near the side punch, and the limiting protrusion is arranged in a straight line with the side punch.

[0014] In the above technical solution, the lower die is also provided with a slide rail extending in the same direction as the side punch, and the punching slider is slidably mounted on the slide rail.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a punching slider inside the upper template projection of the lower die, setting a side punch on the side wall of the punching slider, and setting a transmission slider on the lower die that is compatible with the upper die insert, and connecting the transmission slider with the punching slider, it is possible to punch from the inside of the product to the outside to form holes and grooves on the side wall, and to guide and limit the displacement of the side punch to avoid scratching the inner wall of the product, thus ensuring the molding yield. Moreover, the overall layout of the mold is compact, which can make full use of the space of the lower die, thereby reducing the size of the lower die. This can also improve the assembly accuracy of the mating parts on the mold, and appropriately reduce the processing accuracy of each part, thereby reducing the mold manufacturing cost, shortening the mold manufacturing cycle, and improving production efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure during mold opening in this embodiment;

[0017] Figure 2 yes Figure 1 Enlarged view of section A in the middle;

[0018] Figure 3 This is a schematic diagram of the structure during mold closing in this embodiment;

[0019] Figure 4 This is a partially enlarged structural diagram of an embodiment of the present invention in the mold-closed state.

[0020] In the diagram: 100, upper mold; 110, upper mold base; 120, upper template; 130, anti-detachment plate; 200, lower mold; 210, lower template; 220, lower mold base; 300, ring structure product; 10, insert cutter; 11, first inclined surface; 20, punching slider; 30, transmission slider; 31, guide groove; 32, second inclined surface; 40, reset component; 41, pull rod; 42, spring; 50, side punch; 60, limiting protrusion; 70, slide rail. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings.

[0022] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application 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 limiting this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" of a second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] like Figure 1-4 As shown, the die structure for punching the sidewall of a ring structure includes an upper die 100 and a lower die 200. The upper die 100 includes an upper die base 110, an upper template 120, and a release plate 130, which is movably connected to the upper die base 110. The lower die 200 includes a lower template 210 and a lower die base 220, which are respectively adapted to the upper and lower ends of the ring structure product 300. The upper die 100 also includes two cutting blades 10, and the lower die 200 includes a punching slider 20, two transmission sliders 30, and two reset pieces 40.

[0024] Both insert blades 10 extend along the mold closing direction and are respectively located on both sides of the upper mold plate 120. Their upper ends are detachably fixed to the upper mold base 110, and their lower ends are slidably connected to the anti-detachment plate 130 and can pass through the anti-detachment plate 130 and extend to its outer side when the mold is closed. A first inclined surface 11 is formed on the lower end and / or the opposite side wall of both insert blades 10, and the two first inclined surfaces 11 are arranged opposite to each other.

[0025] The punching slider 20 is slidably mounted on the lower mold base 220 and located directly below the upper mold plate 210. Its upper end passes through the lower mold plate 210 and extends above it. A horizontally arranged side punch 50 is provided on its upper side wall. One end of the side punch 50 extends to the outside of the punching slider 20 and to the inside of the orthographic projection of the upper mold plate 120. The punching slider 20 is connected to a transmission slider 30 and can slide on the lower mold 200 under its push, so that when the mold is closed, the side punch 50 can be driven to punch side holes on the side wall of the annular structure product 300 surrounding it.

[0026] Each drive slider 30 is slidably mounted on the lower die 200 and is respectively located below a insert 10. The opposite ends of the two drive sliders 30 are respectively connected to a reset member 40, and their opposite ends extend toward the punching slider 20. One drive slider 30 is connected to the punching slider 20, and the side wall of the other drive slider 30 extends to the side of the side punch 50.

[0027] When the mold is closed, the two inserts 10 can push the two transmission sliders 30 to slide towards each other. One transmission slider 30 pushes the punching slider 20 to drive the side punch 50 to punch side holes on the side wall of the annular structure product 300. The other transmission slider 30 slides to the side of the end of the side punch 50 to limit its displacement. When the mold is opened, the two inserts 10 leave the two transmission sliders 30 with the upper mold 100. The two reset pieces 40 pull the two transmission sliders 30 to reset and drive the punching slider 20 to reset.

[0028] This invention provides a punching slider 20 on the inner side of the upper template 120 of the lower mold 200, a side punch 50 on the side wall of the punching slider 20, and a transmission slider 30 on the lower mold 200 that is compatible with the upper mold insert 10. The transmission slider 30 is connected to the punching slider 20, which enables punching from the inside of the product to the outside to form holes and grooves on the side wall. It can also guide and limit the displacement of the side punch 50 to prevent it from scratching the inner wall of the product, ensuring a high yield of molded products. The overall layout of the mold is compact, which can make full use of the space of the lower mold, thereby reducing the size of the lower mold. This can also improve the assembly accuracy of the mating parts on the mold, and appropriately reduce the processing accuracy of each part, thereby reducing the mold manufacturing cost, shortening the mold manufacturing cycle, and improving production efficiency.

[0029] like Figure 1 , 3As shown, the transmission slider 30, which is connected to the punching slider 20, is also provided with a guide groove 31 adapted to a cutting tool 10. The guide groove 31 has a second inclined surface 32 adapted to the first inclined surface 11 on its side wall facing the punching slider 20. Each reset component 40 includes a horizontally arranged pull rod 41. Each pull rod 41 is fitted with a spring 42. The opposing ends of the two springs 42 can be detachably fixed on the lower die 210. The lower die 200 is also provided with a slide rail 70 extending in the same direction as the side punch 50. The punching slider 20 is slidably mounted on the slide rail 70.

[0030] It is understandable that the guide groove 31 and the second inclined surface 32 can guide the translation direction of the insert 10 on the lower template 210, and cooperate with the slide rail 70 to ensure the sliding direction of the punching slider 20, thereby ensuring the punching accuracy of the side punch 50.

[0031] like Figure 2 , 4 As shown, the outer wall of the transmission slider 30 near the side punch 50 is also provided with a limiting protrusion 60 that is adapted to the side punch 50 and extends horizontally. The limiting protrusion 60 is arranged in a straight line with the side punch 50.

[0032] Understandably, the limiting protrusion 60 can limit the translational distance of the side punch 50, preventing the punching slider 20 from damaging the inner wall of the product.

[0033] The working process of this utility model is as follows: When the mold is closed, the upper mold base 110 drives the two insert blades 10 to move down synchronously. The anti-detachment plate 130 first contacts the lower template 210 and presses down on the sheet material. Under the action of the limiting structure in the upper mold 100, the anti-detachment plate 130 slides relative to the upper mold 100. The upper mold base 110 drives the insert blades 10 and the upper template 120 to continue to move down until the upper template 120 presses down on the upper end of the ring structure product 300. Simultaneously, the two insert blades 10 press against a transmission slider 30 and push it to move towards the ring structure product 300. The transmission slider 30 pushes the punching slider 20 to drive the side punch 50 on it to move synchronously to punch the ring structure product. The side wall of 300, and at the same time, the limiting protrusion 60 on another transmission slider 30 moves to the side of the end of the side punch 50 to guide and limit the displacement of the side punch 50 to prevent the punching slider 20 from colliding with the inner wall of the annular structure product 300. At the same time, the two reset pieces 40 are stretched. When the mold is opened, the upper mold plate 110 drives the insert 10 and the upper mold plate 120 to move upward. Due to the action of the limiting piece, the anti-detachment plate 130 is not under force and continues to press the sheet material. At the same time, the two transmission sliders 30 return to their positions under the pull of the two reset pieces 40. One transmission slider 30 pulls the punching slider 20 to return to its position. The upper mold continues to move upward. The limiting structure pulls the anti-detachment plate 130 to make it separate from the lower mold plate 210. The mold opening is completed.

[0034] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A punching die structure for punching the sidewall of a ring structure, the die having an upper die and a lower die, the upper die having an upper die base, an upper template, and a release plate, the release plate being movably connected to the upper die base, and the lower die having a lower template and a lower die base, the upper template and the lower template being respectively adapted to the upper end and lower end of the ring structure product; characterized in that: The upper die is also provided with two insert blades, and the lower die is also provided with a punching slide, two transmission slides, and two reset components, wherein: Both inserts extend along the mold closing direction and are respectively located on both sides of the upper mold plate. Their upper ends are detachably fixed to the upper mold base, and their lower ends are slidably connected to the anti-detachment plate and can pass through the anti-detachment plate and extend to its outer side when the mold is closed. A first inclined surface is formed on the lower end and / or opposite sidewall of both inserts, and the two first inclined surfaces are arranged opposite to each other. The punching slider is slidably mounted on the lower die base and located directly below the upper die plate. Its upper end passes through the lower die plate and extends above it. A horizontally arranged side punch is provided on its upper side wall. One end of the side punch extends to the outside of the punching slider and to the inside of the orthographic projection of the upper die plate. The punching slider is connected to a transmission slider and can slide on the lower die under its push, so as to drive the side punch to punch side holes on the annular structure product side wall surrounding it when the die is closed. Each of the transmission sliders is slidably mounted on the lower die and is respectively located below one of the inserts. The opposite ends of the two transmission sliders are respectively connected to a reset member, and their opposite ends extend toward the punching slider. One transmission slider is connected to the punching slider, and the sidewall of the other transmission slider extends to the side of the side punch. When the mold is closed, the two inserts can push the two transmission sliders to slide towards each other. One transmission slider pushes the punching slider to drive the side punch to punch side holes on the side wall of the annular structure product. The other transmission slider slides to the side of the end of the side punch to limit its displacement. When the mold is opened, the two inserts leave the two transmission sliders with the upper mold. The two reset members pull the two transmission sliders to reset and drive the punching slider to reset.

2. The punching die structure for punching the sidewall of the annular structure according to claim 1, characterized in that, The transmission slider, which is connected to the punching slider, is also provided with a guide groove adapted to a cutting tool. A second inclined surface adapted to the first inclined surface is formed on the side wall of the guide groove facing the punching slider.

3. The punching die structure for punching the sidewall of the annular structure according to claim 1, characterized in that, Each of the reset components includes a horizontally arranged pull rod, and each pull rod is fitted with a spring. The opposing ends of the two springs can be detachably fixed to the lower template.

4. The punching die structure for punching the sidewall of the annular structure according to claim 1, characterized in that, The outer wall of the transmission slider near the side punch is also provided with a limiting protrusion that is adapted to the side punch and extends horizontally, and the limiting protrusion is arranged in a straight line with the side punch.

5. The punching die structure for punching the sidewall of a ring structure according to any one of claims 1-4, characterized in that, The lower die is also provided with a slide rail extending in the same direction as the side punch, and the punching slider is slidably mounted on the slide rail.

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