A continuous stamping die structure

Abstract

This utility model relates to the field of stamping dies and discloses a continuous stamping die structure, including a lower die base and an upper die base. A base plate positioning structure, a first lower die processing structure, and a second lower die processing structure are mounted on the upper side of the lower die base. The base plate positioning structure is slidably mounted on the lower die base in the vertical direction, and a first elastic element is installed between the base plate and the lower die base. The first lower die processing structure includes a first main bending punch and a first secondary bending die, and the second lower die processing structure includes a second main bending die and a second secondary bending die. A pressure plate, the first upper die processing structure, and the second upper die processing structure are mounted on the lower side of the upper die base. The pressure plate is slidably mounted on the upper die base in the vertical direction, and a second elastic element is installed between the pressure plate and the upper die base. This utility model can simultaneously process two types of metal workpieces on the same set of dies and the same base plate, saving costs and resources while improving work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of stamping die technology, and in particular to a continuous stamping die structure. Background Technology

[0002] Stamping dies are specialized process equipment used in stamping to apply external force to blanks such as sheet metal and strip, causing them to undergo plastic deformation or separation in order to obtain workpieces of the required shape and size. They are the core of stamping production and together with stamping machine tools and stamping materials, constitute the three major elements of stamping processing.

[0003] Stamping dies typically consist of an upper die, a lower die, a punch, and a blank holder. For simple workpieces, ordinary stamping dies can complete the stamping process in one step. However, for complex workpieces, stamping usually requires multiple steps, such as separating punching, stamping, deformation, and separation. For example, a novel metal stamping die structure is disclosed in application number 202220162852.0. This die can produce metal workpieces with both holes and two bends.

[0004] However, in actual production, metal workpieces typically have two types (such as...) Figure 5 As shown, the two workpieces have roughly similar basic structures, but the bending directions of the two bends in one workpiece are the same, while the bending directions of the two bends in the other workpiece are opposite. Producing these two metal workpieces requires two sets of stamping dies, which is both wasteful of costs and reduces work efficiency. Summary of the Invention

[0005] In view of this, the purpose of this utility model is to provide a continuous stamping die structure to solve the problem mentioned in the background art that producing two kinds of metal workpieces requires two sets of stamping dies, which wastes costs and reduces work efficiency.

[0006] This utility model solves the above-mentioned technical problems through the following technical means:

[0007] A continuous stamping die structure includes a lower die holder and an upper die holder.

[0008] The upper side of the lower mold base is equipped with a base plate positioning structure, a first lower mold processing structure, and a second lower mold processing structure. The base plate positioning structure is slidably mounted on the lower mold base in the vertical direction, and a first elastic element is installed between the base plate and the lower mold base. The first lower mold processing structure includes a first main bending punch and a first secondary bending die. The second lower mold processing structure includes a second main bending die and a second secondary bending die.

[0009] A pressure plate, a first upper die processing structure, and a second upper die processing structure are installed on the lower side of the upper die base. The pressure plate is slidably installed on the upper die base in the vertical direction, and a second elastic element is installed between the pressure plate and the upper die base. Both the first upper die processing structure and the second upper die processing structure can penetrate the pressure plate. The pressure plate is provided with a notch adapted to the first main bending part punch. The first upper die processing structure includes a first secondary bending part punch, and the second upper die processing structure includes a second main bending part punch and a second secondary bending part punch.

[0010] In one possible implementation, the first lower die processing structure further includes a first circular punch, a first irregular punch, and a first segmented punch; the first upper die processing structure further includes a first circular punch, a first irregular punch, and a first segmented punch.

[0011] In one possible implementation, the second lower die processing structure further includes a second circular punch, a second irregular punch, and a second segmented punch; the second upper die processing structure further includes a second circular punch, a second irregular punch, and a second segmented punch.

[0012] In one possible implementation, the first lower mold processing structure and the second lower mold processing structure are respectively disposed on both sides of the width direction of the lower mold base, and the first lower mold processing structure and the second lower mold processing structure are staggered; the first upper mold processing structure is disposed corresponding to the first lower mold processing structure, and the second upper mold processing structure is disposed corresponding to the second lower mold processing structure.

[0013] In one possible implementation, a first guide groove is provided on the lower die base next to the first dividing punch, and a second guide groove is provided on the lower die base next to the second dividing punch, with the bottom sides of both the first guide groove and the second guide groove being inclined.

[0014] In one possible implementation, the system further includes an inclined flow divider plate, which is provided with a first flow divider channel and a second flow divider channel. One end of the first flow divider channel is connected to the first guide channel, and one end of the second flow divider channel is connected to the second guide channel.

[0015] In one possible implementation, the substrate positioning structure includes a plurality of positioning posts and positioning blocks, each of which has a positioning groove adapted to the substrate.

[0016] In one possible implementation, the substrate positioning structure further includes a support portion having a support surface for supporting the substrate.

[0017] In one possible implementation, a plurality of guide shafts are mounted on the lower side of the upper mold base, and a bushing adapted to the guide shafts is mounted on the upper side of the lower mold base.

[0018] In one possible implementation, a plurality of guide shafts are mounted on the lower side of the upper mold base, and a bushing adapted to the guide shafts is mounted on the upper side of the lower mold base.

[0019] The beneficial effects of this utility model are:

[0020] 1. This application, through the cooperation of the first lower mold processing structure, the first upper mold processing structure, the second lower mold processing structure, and the second upper mold processing structure, can simultaneously process two kinds of metal workpieces on the same set of molds and the same base plate, which can save costs and resources and improve work efficiency.

[0021] 2. This application, by setting a first guide channel, a second guide channel, and a flow divider, can automatically classify two types of metal workpieces, thereby improving work efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of a continuous stamping die structure according to an embodiment of this application;

[0024] Figure 2 This is a schematic diagram of the structure of the lower mold base in an embodiment of this application;

[0025] Figure 3 This is a schematic diagram of the upper mold base in an embodiment of this application;

[0026] Figure 4 This is a schematic diagram of the pressure plate structure in an embodiment of this application;

[0027] Figure 5 This is a schematic diagram of the processed substrate and two metal workpieces in the embodiments of this application;

[0028] Reference numerals: 100, Lower die holder; 111, Positioning pin; 112, Positioning block; 113, Bearing part; 121, First circular punch; 122, First irregular punch; 123, First main bending punch; 124, First secondary bending die; 125, First segmented punch; 131, Second circular punch; 132, Second irregular punch; 133, Second main bending die; 134, Second secondary bending die; 135, Second segmented punch; 140, First guide channel; 150, Second guide channel; 160, Shaft 200. Upper die holder; 210. Pressure plate; 211. Connecting post; 212. Second elastic element; 213. Notch; 221. First circular punch; 222. First irregular punch; 223. First secondary bending punch; 224. First dividing punch; 231. Second circular punch; 232. Second irregular punch; 233. Second main bending punch; 234. Second secondary bending punch; 235. Second dividing punch; 240. Guide shaft; 300. Diverter plate; 310. First diverter channel; 320. Second diverter channel Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can understand the advantages and effects of this utility model from the content disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are for illustrative purposes only and represent schematic diagrams, not actual pictures. They should not be construed as limiting the utility model. To better illustrate the embodiments of this utility model, some components in the figures may be omitted, enlarged, or reduced, and do not represent the actual product dimensions. It is understandable that some well-known structures and their descriptions may be omitted in the figures for those skilled in the art.

[0030] In the figures of this utility model embodiment, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the figure, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe the positional relationship in the figure are only for illustrative purposes and should not be construed as limiting this utility model. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0031] like Figures 1-5As shown, this application embodiment provides a continuous stamping die structure, including a lower die base 100, an upper die base 200, and a flow divider plate 300. The lower die base 100 is fixed to a mounting bracket such as a machine frame or base. The upper die base 200 is disposed above the lower die base 100 and is movable vertically. A hydraulic cylinder is connected to the upper side of the upper die base 200, driving its movement. The flow divider plate 300 is installed on the discharge side of the lower die base 100, guiding the two types of formed metal workpieces to different collection devices. It should be noted that... Figure 5 The illustration shows a schematic diagram of a substrate processed using the stamping die of this embodiment, as well as two types of metal workpieces, to facilitate the reader's understanding.

[0032] In this embodiment, a substrate positioning structure, a first lower die processing structure, and a second lower die processing structure are mounted on the upper side of the lower die base 100; a pressure plate 210, a first upper die processing structure, and a second upper die processing structure are mounted on the lower side of the upper die base 200. The substrate positioning structure is mainly used to position the substrate to be processed, preventing it from shifting in the width direction during processing and ensuring the substrate is suspended in the air before stamping. The pressure plate 210 presses the substrate downwards during the mold closing process between the upper die base 200 and the lower die base 100, fixing the substrate onto the lower die base 100 for stamping and also serves as a stripping mechanism. The first lower die processing structure cooperates with the first upper die processing structure to stamp a first type of metal workpiece from the substrate; the second lower die processing structure cooperates with the second upper die processing structure to stamp a second type of metal workpiece from the substrate.

[0033] In this embodiment, the substrate positioning structure is slidably mounted on the lower mold base 100 in the vertical direction, and a first elastic member is installed between the substrate positioning structure and the lower mold base 100, so that the substrate positioning structure can spring back to its original position after being moved downward. Specifically, the substrate positioning structure includes a plurality of positioning posts 111 and positioning blocks 112. The plurality of positioning posts 111 are distributed on both sides of the lower mold base 100, and the plurality of positioning blocks 112 are also distributed on both sides of the lower mold base 100. Both the positioning posts 111 and the positioning blocks 112 can slide in the vertical direction. A first elastic member is installed between each positioning post 111 and each positioning block 112 and the lower mold base 100. The first elastic member is a helical spring or a compression spring. Positioning grooves adapted to the substrate are formed on both the positioning posts 111 and the positioning blocks 112. During substrate processing, the partial structures on both sides of the substrate in the width direction are respectively placed in the positioning grooves on both sides, thereby limiting the substrate in the width direction.

[0034] Furthermore, since the pressure plate 210 directly contacts the substrate when it moves downwards, and the substrate, being placed in the positioning groove, has its upper surface lower than the upper ends of the positioning posts 111 and positioning blocks 112, the lower side of the pressure plate 210 is also provided with through holes adapted to the positioning posts 111 and positioning blocks 112. When the pressure plate 210 moves downwards, the positioning posts 111 and positioning blocks 112 can enter the corresponding through holes, thereby ensuring that the pressure plate 210 is not interfered with by the positioning posts 111 and positioning blocks 112 when it moves downwards, and directly contacts the substrate.

[0035] It should be noted that the stamping die in this embodiment performs workpiece production in four steps: punching, stamping, deformation, and separation. The punching step creates round holes, the stamping step creates irregularly shaped holes, the deformation step creates two bends in the workpiece, and the separation step cuts to the connection between the workpiece and the substrate, separating the workpiece. The aforementioned positioning pins 111 and positioning blocks 112 mainly correspond to the punching and stamping areas of the substrate, limiting and supporting the substrate in these areas. Due to working conditions, the subsequent deformation and separation areas cannot have supporting structures installed, which would easily lead to unevenness in the subsequent substrate structure. Therefore, in this embodiment, the substrate positioning structure also includes a support portion 113, which has a bearing surface for supporting the substrate. The support portion 113 can slide vertically, and the first elastic element installed between the support portion 113 and the lower die base 100 is also a helical spring or a compression spring. The support portion 113 is installed between the stamping and deformation steps. By installing the support part 113, the substrate becomes more stable during processing, thus improving the processing quality.

[0036] Furthermore, by installing a bearing portion 113 between the stamping and deformation steps, the distance between the deformation steps can be lengthened, reducing the risk of mutual interference between the forces exerted on the substrate by these two steps and improving production quality.

[0037] In this embodiment, the pressure plate 210 is slidably mounted on the lower side of the upper mold base 200 in a vertical direction. Specifically, a plurality of connecting posts 211 are mounted on the pressure plate 210, and the connecting posts 211 penetrate the upper mold base 200, allowing the pressure plate 210 to be slidably mounted on the upper mold base 200 in a vertical direction. A second elastic element 212 is installed between the pressure plate 210 and the upper mold base 200. The second elastic element 212 is a helical spring or a compression spring, and can be sleeved on the connecting posts 211. It should be noted that since the first upper mold processing structure and the second upper mold processing structure are directly mounted on the upper mold base 200, and these structures need to act directly on the substrate, all structures in the first upper mold processing structure and the second upper mold processing structure can penetrate the pressure plate 210.

[0038] In this embodiment, the first lower die processing structure and the first upper die processing structure are used to stamp a first type of metal workpiece, wherein the bending directions of the two bent portions of the first type of metal workpiece are opposite. The first lower die processing structure includes a first circular punch 121, a first irregular punch 122, a first main bending punch 123, a first secondary bending punch 124, and a first segmented punch 125 arranged sequentially. The first upper die processing structure includes a first circular punch 221, a first irregular punch 222, a first secondary bending punch 223, and a first segmented punch 224 arranged sequentially. The first circular punch 121 and the first circular punch 221 correspond to each other and cooperate to stamp the circular hole of the metal workpiece. The first irregular punch 122 and the first irregular punch 222 correspond to each other and cooperate to stamp the irregular hole of the metal workpiece. The pressure plate 210 is provided with a notch 213 adapted to the first main bending punch 123. The notch 213 can serve as the die of the first main bending punch 123. The two cooperate with each other to stamp one of the bending portions of the metal workpiece. The first secondary bending die 124 corresponds to the first secondary bending punch 223. The two cooperate with each other to stamp the other bending portion of the metal workpiece. The first dividing punch 125 and the first dividing punch 224 correspond to each other. The two cooperate with each other to separate the metal workpiece from the substrate, thereby forming the workpiece.

[0039] In this embodiment, the second lower die processing structure and the second upper die processing structure are used to stamp a second type of metal workpiece, wherein the bending directions of the two bent portions of the second type of metal workpiece are the same. The second lower die processing structure includes a second circular punch 131, a second irregular punch 132, a second main bending portion die 133, a second auxiliary bending portion die 134, and a second segmented punch 135 arranged sequentially. The second upper die processing structure includes a second circular punch 231, a second irregular punch 232, a second main bending portion punch 233, a second auxiliary bending portion punch 234, and a second segmented punch 235 arranged sequentially. The second circular punch 131 and the second circular punch 231 correspond to each other and cooperate to stamp the circular hole of the metal workpiece. The second irregular punch 132 and the second irregular punch 232 correspond to each other and cooperate to stamp the irregular hole of the metal workpiece. The second main bending die 133 and the second main bending punch 233 correspond to each other and cooperate to stamp one of the bending portions of the metal workpiece. The second auxiliary bending die 134 and the second auxiliary bending punch 234 correspond to each other and cooperate to stamp the other bending portion of the metal workpiece. The second dividing punch 135 and the second dividing punch 235 correspond to each other and cooperate to separate the metal workpiece from the substrate, thereby forming the workpiece.

[0040] By cooperating with the first lower die processing structure, the first upper die processing structure, the second lower die processing structure, and the second upper die processing structure, two types of metal workpieces can be processed simultaneously on the same set of molds and the same substrate, which can save costs and resources and improve work efficiency.

[0041] In this embodiment, the first lower die processing structure and the second lower die processing structure are respectively disposed on both sides of the lower die base 100 in the width direction, and the first lower die processing structure and the second lower die processing structure are staggered. The first upper die processing structure is disposed corresponding to the first lower die processing structure, and the second upper die processing structure is disposed corresponding to the second lower die processing structure. Through this staggered distribution structure and production method, less scrap is generated at the edges of the substrate after processing, thereby enabling the substrate to be processed into more metal workpieces and saving production costs.

[0042] In this embodiment, a first guide groove 140 is formed on the lower die base 100 beside the first dividing punch 125, and a second guide groove 150 is formed on the lower die base 100 beside the second dividing punch 135. The bottom sides of both the first guide groove 140 and the second guide groove 150 are inclined. The first guide groove 140 and the second guide groove 150 are distributed on both sides of the end of the lower die base 100. After forming, the two types of metal workpieces can fall into the first guide groove 140 and the second guide groove 150 respectively, avoiding confusion between the two types of metal workpieces, eliminating the need for subsequent sorting processes, and improving work efficiency.

[0043] In this embodiment, the diversion plate 300 is provided with a first diversion channel 310 and a second diversion channel 320. One end of the first diversion channel 310 is connected to the first guide groove 140, and one end of the second diversion channel 320 is connected to the second guide groove 150. The ends of the first diversion channel 310 and the second diversion channel 320 are respectively connected to the collection device, so that the two metal workpieces can directly enter the collection device.

[0044] In this embodiment, a plurality of guide shafts 240 are mounted on the lower side of the upper mold base 200, and ball bearings are provided on the sidewalls of the guide shafts 240 near their ends. A bushing 160 adapted to the guide shafts 240 is mounted on the upper side of the lower mold base 100. During the mold closing process of the upper mold base 200 and the lower mold base 100, the guide shafts 240 can enter their corresponding bushings 160 in advance, thereby playing a role in precise positioning of the mold closing process of the upper mold base 200 and the lower mold base 100.

[0045] In this embodiment, the guide shaft 240 is a telescopic structure, and a nitrogen spring is installed inside the guide shaft 240. This arrangement can buffer the mold closing process of the upper mold base 200 and the lower mold base 100, thus extending the service life of the mold.

[0046] In this embodiment, all structures of the mold are made of DC53 material, which has better wear resistance.

[0047] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A continuous stamping die structure, comprising a lower die holder (100) and an upper die holder (200), characterized in that: The upper side of the lower mold base (100) is equipped with a base plate positioning structure, a first lower mold processing structure and a second lower mold processing structure. The base plate positioning structure is slidably mounted on the lower mold base (100) in the vertical direction, and a first elastic member is installed between it and the lower mold base (100). The first lower mold processing structure includes a first main bending part punch (123) and a first secondary bending part die (124). The second lower mold processing structure includes a second main bending part die (133) and a second secondary bending part die (134). A pressure plate (210), a first upper die processing structure, and a second upper die processing structure are installed on the lower side of the upper die base (200). The pressure plate (210) is slidably installed on the upper die base (200) in the vertical direction, and a second elastic element (212) is installed between the pressure plate (210) and the upper die base (200). Both the first upper die processing structure and the second upper die processing structure can penetrate the pressure plate (210). The pressure plate (210) is provided with a notch (213) adapted to the first main bending part punch (123). The first upper die processing structure includes a first secondary bending part punch (223), and the second upper die processing structure includes a second main bending part punch (233) and a second secondary bending part punch (234).

2. The continuous stamping die structure according to claim 1, characterized in that, The first lower die processing structure further includes a first circular punch (121), a first irregular punch (122), and a first segmented punch (125); the first upper die processing structure further includes a first circular punch (221), a first irregular punch (222), and a first segmented punch (224).

3. The continuous stamping die structure according to claim 2, characterized in that, The second lower die processing structure also includes a second circular punch (131), a second irregular punch (132), and a second segmented punch (135); the second upper die processing structure also includes a second circular punch (231), a second irregular punch (232), and a second segmented punch (235).

4. The continuous stamping die structure according to claim 3, characterized in that, The first lower mold processing structure and the second lower mold processing structure are respectively disposed on both sides of the width direction of the lower mold base (100), and the first lower mold processing structure and the second lower mold processing structure are staggered; the first upper mold processing structure is disposed corresponding to the first lower mold processing structure, and the second upper mold processing structure is disposed corresponding to the second lower mold processing structure.

5. The continuous stamping die structure according to claim 3, characterized in that, A first guide groove (140) is provided on the lower die base (100) beside the first dividing punch (125), and a second guide groove (150) is provided on the lower die base (100) beside the second dividing punch (135). The bottom sides of the first guide groove (140) and the second guide groove (150) are both inclined.

6. The continuous stamping die structure according to claim 5, characterized in that, It also includes an inclined flow divider plate (300), on which a first flow divider channel (310) and a second flow divider channel (320) are provided. One end of the first flow divider channel (310) is connected to the first guide channel (140), and one end of the second flow divider channel (320) is connected to the second guide channel (150).

7. The continuous stamping die structure according to any one of claims 1-6, characterized in that, The substrate positioning structure includes several positioning posts (111) and positioning blocks (112), and positioning grooves adapted to the substrate are provided on the positioning posts (111) and positioning blocks (112).

8. The continuous stamping die structure according to claim 7, characterized in that, The substrate positioning structure further includes a support portion (113), which has a support surface for supporting the substrate.

9. The continuous stamping die structure according to any one of claims 1-6, characterized in that, A plurality of guide shafts (240) are mounted on the lower side of the upper mold base (200), and a bushing (160) adapted to the guide shafts (240) is mounted on the upper side of the lower mold base (100).

10. The continuous stamping die structure according to claim 9, characterized in that, The guide shaft (240) is a telescopic structure, and a nitrogen spring is installed inside the guide shaft (240).

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