Cold forging forming progressive die

Abstract

The utility model discloses a cold forging forming progressive die, and belongs to the technical field of progressive dies. According to the technical scheme, the device comprises an upper die, a lower die, a conveying system and a plurality of work station groups, the work station group comprises a pre-cutting work station group, a raising work station group and a knife edge work station group, a pre-cutting work station of the pre-cutting work station group can be used for stamping a material belt, a raising work station of the raising work station group can be used for processing a concave position in the middle of a product, and a knife edge work station of the knife edge work station group can be used for cutting a peripheral side structure of the product. According to the cold forging forming progressive die, through reasonable layout and division cooperation of all the work station sets, precise machining of a material belt is achieved, the cold forging forming progressive die is especially suitable for small products such as game handle metal accessories, high-quality forming of the products can be guaranteed, the machining problem of the small products of complex structures is effectively solved, and the machining quality and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of progressive die technology, specifically a cold forging progressive die. Background Technology

[0002] In modern society, as people's living standards continue to improve, their pursuit of spiritual enrichment is also growing. Games, as an important form of entertainment, are loved by a wide range of users because of their excellent relaxation and entertainment effects.

[0003] As a commonly used accessory for playing games, a game controller includes a metal component in its structure, as shown below. Figures 11 to 13 As shown, this metal component has unique structural features. Its central part needs to be machined into a bowl-shaped concave structure, and four small, outward-protruding structures facing away from the concave direction are set on the outer edge of the bowl-shaped structure. Because this metal component is used in a game controller, the overall part size needs to be relatively small. For this type of product, how to achieve high processing efficiency while ensuring high quality has become a pressing technical problem to be solved. If this problem cannot be effectively solved, it will not only lead to increased production costs but also limit the product's production scale and market supply capacity, thereby weakening the company's competitiveness in the market.

[0004] In today's increasingly competitive market, improving product processes and effectively controlling costs have become key factors for businesses to enhance their competitiveness. To better meet market demands, increasing the types of products that molds can produce and improving production efficiency is particularly important. Utility Model Content

[0005] To address one of the shortcomings of existing technologies, this utility model provides a cold forging progressive die, which solves the problem of cold forging specific small products.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cold forging progressive die, comprising an upper die and a lower die, a conveying system for conveying a material strip is provided between the upper die and the lower die, and a plurality of workstations are provided between the upper die and the lower die, wherein the workstations include:

[0007] The pre-cutting station group includes several pre-cutting stations arranged in sequence, which can punch the material strip;

[0008] The embossing station group includes several embossing stations arranged in sequence, which can process the material strip of the embossing station to make the concave position in the middle of the product.

[0009] The cutting edge workstation group consists of several cutting edge workstations arranged in sequence. The cutting edge workstations can perform cutting processing on the peripheral structure of the material strip.

[0010] Preferably, the pre-cutting workstation group includes:

[0011] The first pre-cutting station is equipped with a positioning hole punch, which can process positioning holes on the strip. The positioning holes are located on both sides of the strip.

[0012] Preferably, the positioning hole punch includes:

[0013] The first positioning hole section includes a cutting structure for two machined circular holes, wherein the circular holes machined in the first positioning hole section are located between two adjacent product positions on the strip.

[0014] The second positioning hole section includes two cutting structures capable of machining elongated holes, which are located on symmetrical sides of the product position on the strip.

[0015] Preferably, the pre-cutting station group further includes a second pre-cutting station and a third pre-cutting station, and the second pre-cutting station and the third pre-cutting station are respectively equipped with punch structures that can process anti-floating grooves on the material strip;

[0016] The lower dies of the second and third pre-cutting stations are provided with grooves corresponding to their punch structures.

[0017] Preferably, the forward direction of the material strip during processing is taken as the front side;

[0018] The punch of the second pre-cutting station includes two arc-shaped stamping structures with a gap between them; the stamping structure of the second pre-cutting station is located on the rear side of the product on the strip.

[0019] The punch of the third pre-cutting station also includes two arc-shaped stamping structures, which are located on the front side of the product on the strip.

[0020] There is a gap between the arc structures processed by the second and third pre-cutting stations.

[0021] Preferably, the embossing station group includes a first embossing station and a second embossing station, and both the first embossing station and the second embossing station are equipped with a punch structure that can process the concave area in the middle of the product.

[0022] The punch length of the first punching station is less than that of the punch length of the second punching station.

[0023] Preferably, the cutting edge workstation group includes:

[0024] The product cutting edge station can perform cutting and machining on the peripheral boss structure of the product;

[0025] The product blanking station can perform cutting and machining on the entire periphery of the product.

[0026] Preferably, the product cutting edge station includes:

[0027] The first cutting edge station includes two cutting structures that can process the protruding structures on the periphery of the product;

[0028] The second cutting edge station includes two cutting structures that can process the protruding structures on the periphery of the product. The cutting structures of the second cutting edge station are opposite to the cutting structures of the first cutting edge station.

[0029] Preferably, the cutting structures of the first and second cutting edge stations are U-shaped;

[0030] The first and second cutting edge stations can respectively cut and process the relatively convex structures on both sides of the product.

[0031] The punch of the product unloading station corresponds to the peripheral contour shape of the product, and the punch of the product unloading station includes:

[0032] Circumferential portion, corresponding to the circular part of the product;

[0033] The convex part corresponds to the convex structural part of the product. The cutting position of the outer edge of the convex part is located between the cutting ranges formed by the first cutting edge station and the second cutting edge station, respectively.

[0034] Preferably, the upper mold includes an upper mold base, an upper mold pad, an upper clamping plate, a stripper pad, and a stripper plate arranged sequentially from top to bottom;

[0035] The lower mold includes a lower mold base, a lower mold pad, and a lower template arranged sequentially from bottom to top.

[0036] Compared with existing technologies, this solution has the following advantages: Through the reasonable layout and division of labor of the pre-cutting station group, the embossing station group and the cutting edge station group, the material strip is processed, which can accurately complete the processing of small products such as metal parts in game controllers, ensuring the high-quality forming of the products.

[0037] The first pre-cutting station in this solution is equipped with a positioning hole punch to open positioning holes on the strip, which can effectively improve the positioning accuracy of the strip during processing and avoid processing deviation. The second and third pre-cutting stations process anti-floating grooves on the strip through a specific punch structure to prevent the strip from floating during the stamping process, further ensuring processing stability and product quality.

[0038] This solution uses two embossing actions to complete the processing of the cup-shaped concave area of ​​the product, thereby preventing the material from tearing during molding, and segmented molding allows for better control of dimensions. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the material strip processing state according to an embodiment of this application;

[0040] Figure 2 This is a schematic diagram of the processing state of the pre-cutting workstation group according to an embodiment of this application;

[0041] Figure 3 This is a schematic diagram of the processing state of the embossing workstation group according to an embodiment of this application;

[0042] Figure 4 This is a schematic diagram of the machining state of the cutting edge workstation group in an embodiment of this application;

[0043] Figure 5 This is a schematic diagram of the structure of the first pre-cutting station according to an embodiment of this application;

[0044] Figure 6 for Figure 5 A magnified view of part A;

[0045] Figure 7 This is a schematic diagram of the structure of the first embossing station according to an embodiment of this application;

[0046] Figure 8 This is a schematic diagram of the product unloading station structure according to an embodiment of this application;

[0047] Figure 9 This is a schematic diagram of the mold opening state of a progressive mold according to an embodiment of this application;

[0048] Figure 10 This is a schematic diagram of the closed state of a continuous mold according to an embodiment of this application;

[0049] Figure 11 This is a schematic diagram of the product structure according to an embodiment of this application;

[0050] Figure 12 This is a top view of the product according to an embodiment of this application;

[0051] Figure 13 for Figure 12 AA cross-section view.

[0052] In the picture:

[0053] 100. Upper mold; 101. Upper mold base; 102. Upper mold backing plate; 103. Upper clamping plate; 104. Stripper plate; 105. Stripper plate;

[0054] 200. Lower mold; 201. Lower mold base; 202. Lower mold backing plate; 203. Lower template;

[0055] 300. Products

[0056] 1. Pre-cutting station group; 11. First pre-cutting station; 12. Second pre-cutting station; 13. Third pre-cutting station;

[0057] 2. Convexing work station group; 21. First convexing work station; 22. Second convexing work station;

[0058] 3. Cutting edge workstation group; 31. First cutting edge workstation; 32. Second cutting edge workstation; 33. Product unloading workstation. Detailed Implementation

[0059] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0060] This application provides the following technical solution:

[0061] A cold forging progressive die, used for processing such as Figures 11 to 13 Product 300 shown is characterized by a bowl-shaped recessed structure in the center, with four small protrusions arranged in a cross shape around the perimeter, located on the outer edge of the bowl-shaped structure. This product is made of metal, requiring materials with high hardness and wear resistance. It should be noted that the lines in the center of product 300 in the attached diagram are structural lines illustrating its bowl-shaped recessed structure, and are not actual traces found in the product.

[0062] The mold parts in this design are made of tungsten-molybdenum high-speed tool steel, model SKH51. This type of material features high hardness, high wear resistance, and good toughness. This design utilizes progressive die machining for this product, resulting in good production efficiency. (See also...) Figure 9 and Figure 10 The progressive die of this design includes an upper die 100 and a lower die 200. The upper die 100 includes, from top to bottom, an upper die base 101, an upper die pad 102, an upper clamping plate 103, a stripper pad 104, and a stripper plate 105. The lower die 200 includes, from bottom to top, a lower die base 201, a lower die pad 202, and a lower die template 203. Conventional technical structures such as an inner guide post assembly and a floating guide assembly are also provided between the upper die 100 and the lower die 200, which will not be elaborated here. A conveyor system for conveying the material belt is provided between the upper die 100 and the lower die 200, and several workstations are set up between them. This die uses a 60T punch press with a punching speed of 150 strokes / minute, and the dimensional tolerance of the cutting edge parts is ±0.002mm.

[0063] For ease of explanation, the forward direction of the conveyor belt during product processing is taken as the "forward" direction. See [link / reference]. Figures 1 to 8 The workstation group includes, from back to front, a pre-cutting workstation group 1, a convex workstation group 2, and a cutting edge workstation group 3.

[0064] The pre-cutting station group 1 includes several pre-cutting stations arranged in sequence. These stations stamp the material strip and serve as preparation for the formal processing of the product, facilitating subsequent processing. The embossing station group 2 includes several embossing stations arranged in sequence. These stations process the material strip to create the concave portion in the center of product 300, forming its bowl-shaped shape. The cutting edge station group 3 includes several cutting edge stations arranged in sequence. These stations cut the material strip to create four protrusions on the periphery of product 300, and finally complete the process of removing product 300 from the material strip.

[0065] Based on the above implementation scheme, the pre-cutting station group 1 includes a first pre-cutting station 11, a second pre-cutting station 12, and a third pre-cutting station 13 arranged sequentially from back to front. The first pre-cutting station 11 is equipped with a positioning hole punch, which can process positioning holes on the strip material. The positioning holes are located on both sides of the strip material. Guide pin assemblies are provided on the mold corresponding to the positioning holes made in the first pre-cutting station 11. The positioning hole punch has two types of settings, with a total of four opening structures. It is divided into a first positioning hole section and a second positioning hole section. It should be noted that, for clearer illustration, in... Figures 1 to 4 The images shown all depict the processing status of the material strip. Figures 2 to 4 The dotted lines on the conveyor belt indicate the processing area of ​​the corresponding workstation on the conveyor belt. (See also...) Figure 2 The first positioning hole section includes a cutting structure for two machined circular holes, located between two adjacent product positions on the strip. The second positioning hole section includes a cutting structure for two machined elongated holes, located on symmetrical sides of the product positions on the strip. In other words, the elongated holes machined in the second positioning hole section are located on both sides of the product. Figure 2 The top and bottom sides of the middle.

[0066] The second pre-cutting station 12 and the third pre-cutting station 13 are respectively equipped with punch structures that can process anti-floating grooves on the material strip; the lower die of the second pre-cutting station 12 and the third pre-cutting station 13 is provided with grooves corresponding to their punch structures.

[0067] Both the second pre-cutting station 12 and the third pre-cutting station 13 have punches comprising two arc-shaped stamping structures with a gap between them. The stamping structure of the second pre-cutting station 12 is located behind the product 300 on the strip, while the stamping structure of the third pre-cutting station 13 is located in front of the product 300 on the strip. The arc-shaped structures processed by the second and third pre-cutting stations 12 and 13 are spaced apart. The second and third pre-cutting stations 12 and 13 each have four circumferentially distributed arc-shaped structural areas. This structure processed by the second and third pre-cutting stations 12 and 13 serves to prevent floating, creating four anti-floating grooves around the area of ​​the product to be processed. The cutting edge of the second and third pre-cutting stations 12 and 13 creates 0.01mm protruding anti-floating grooves on the lower die part, allowing the scrap material to be stuck in the lower die after shearing, preventing material from floating during subsequent processing. Furthermore, the anti-floating groove design allows the first few pieces of waste material to be stably stuck on the straight section of the lower die cutting edge, preventing the waste material from jumping out onto the lower die plate and causing product damage.

[0068] Based on the above implementation plan, see Figure 3 The embossing station group 2 includes a first embossing station 21 and a second embossing station 22. Both the first embossing station 21 and the second embossing station 22 are equipped with punch structures that can process the concave area in the middle of the product 300. The punch structures of the two correspond to the bowl-shaped structure of the product 300 and are spherical convex structures. It should be noted that the punch length of the first embossing station 21 is less than the punch length of the second embossing station 22.

[0069] The cup-shaped structure of product 300 is processed in two steps by combining the first embossing station 21 and the second embossing station 22. Within the strength limit of the material, half the height of the cup-shaped structure of the product is formed first to prevent the material from being torn during forming. Furthermore, segmented forming can better control the size.

[0070] Based on the above implementation plan, see Figure 4 The cutting edge machining station group 3 includes a first cutting edge machining station 31, a second cutting edge machining station 32, and a product unloading station 33. The first cutting edge machining station 31 and the second cutting edge machining station 32 work together to machine the peripheral boss structure of the product 300. The product unloading station 33 performs machining on the entire peripheral side of the product 300, completing the final unloading of the product 300.

[0071] The first cutting edge station 31 and the second cutting edge station 32 each include two cutting structures capable of machining the 300-degree circumferential protruding structure of the product. These cutting structures are approximately "U"-shaped. Figure 4 The direction shown in the diagram is for illustration. The cutting position of the first cutting edge station 31 is the top and bottom of the cup-shaped structure of the product 300, and the cutting position of the second cutting edge station 32 is the left and right sides of the product.

[0072] The punch of the product unloading station 33 corresponds to the peripheral contour shape of the product 300. The punch of the product unloading station 33 includes a circumferential part and an outward protrusion. The circumferential part and the outward protrusion form a connected outer contour structure of the product 300. The circumferential part corresponds to the circular part of the product 300, which is the bowl-shaped structure; the outward protrusion corresponds to the outward protrusion structure of the product 300, which is the four boss structures on the periphery of the product 300. The cutting position of the outer edge of the outward protrusion is located between the cutting ranges formed by the first cutting edge station 31 and the second cutting edge station 32, respectively. It should be noted here that the cutting position of the outward protrusion is not directly using the contours cut by the first cutting edge station 31 and the second cutting edge station 32, but cutting with a slightly smaller edge area than the two. This cutting method can better ensure the stability of the material strip during the unloading process.

[0073] In the description of this application and its embodiments, it should be understood that the terms "top", "bottom", "height", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and 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 a limitation of this application.

[0074] In this application and its embodiments, unless otherwise expressly specified and limited, the terms "set," "install," "connect," "link," "fix," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0075] In this application and its embodiments, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being 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" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0076] The foregoing disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described above. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0077] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0078] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A cold forging progressive die, comprising an upper die and a lower die, wherein a conveying system for conveying a material strip is provided between the upper die and the lower die, and a plurality of workstations are provided between the upper die and the lower die, characterized in that, The workstation group includes: The pre-cutting station group includes several pre-cutting stations arranged in sequence, which can punch the material strip; The embossing station group includes several embossing stations arranged in sequence, which can process the material strip of the embossing station to make the concave position in the middle of the product. The cutting edge workstation group consists of several cutting edge workstations arranged in sequence. The cutting edge workstations can perform cutting processing on the peripheral structure of the material strip.

2. The cold forging progressive die as described in claim 1, characterized in that, The pre-cutting workstation group includes: The first pre-cutting station is equipped with a positioning hole punch, which can process positioning holes on the strip. The positioning holes are located on both sides of the strip.

3. The cold forging progressive die as described in claim 2, characterized in that, The positioning hole punch includes: The first positioning hole section includes a cutting structure for two machined circular holes, wherein the circular holes machined in the first positioning hole section are located between two adjacent product positions on the strip. The second positioning hole section includes two cutting structures capable of machining elongated holes, which are located on symmetrical sides of the product position on the strip.

4. The cold forging progressive die as described in claim 3, characterized in that, The pre-cutting station group also includes a second pre-cutting station and a third pre-cutting station, and the second pre-cutting station and the third pre-cutting station are respectively equipped with punch structures that can process anti-floating grooves on the material strip; The lower dies of the second and third pre-cutting stations are provided with grooves corresponding to their punch structures.

5. The cold forging progressive die as described in claim 4, characterized in that, The forward direction of the material strip during processing is taken as the front side; The punch of the second pre-cutting station includes two arc-shaped stamping structures with a gap between them; the stamping structure of the second pre-cutting station is located on the rear side of the product on the strip. The punch of the third pre-cutting station also includes two arc-shaped stamping structures, which are located on the front side of the product on the strip. There is a gap between the arc structures processed by the second and third pre-cutting stations.

6. The cold forging progressive die as described in claim 5, characterized in that, The embossing station group includes a first embossing station and a second embossing station. Both the first embossing station and the second embossing station are equipped with punch structures that can process the concave area in the middle of the product. The punch length of the first punching station is less than that of the punch length of the second punching station.

7. The cold forging progressive die as described in claim 6, characterized in that, The cutting edge workstation group includes: The product cutting edge station can perform cutting and machining on the peripheral boss structure of the product; The product blanking station can perform cutting and machining on the entire periphery of the product.

8. The cold forging progressive die as described in claim 7, characterized in that, The product cutting edge workstation includes: The first cutting edge station includes two cutting structures that can process the protruding structures on the periphery of the product; The second cutting edge station includes two cutting structures that can process the protruding structures on the periphery of the product. The cutting structures of the second cutting edge station are opposite to the cutting structures of the first cutting edge station.

9. The cold forging progressive die as described in claim 7, characterized in that, The cutting structures of the first and second cutting edge stations are U-shaped; The first and second cutting edge stations can respectively cut and process the relatively convex structures on both sides of the product. The punch of the product unloading station corresponds to the peripheral contour shape of the product, and the punch of the product unloading station includes: Circumferential portion, corresponding to the circular part of the product; The convex part corresponds to the convex structural part of the product. The cutting position of the outer edge of the convex part is located between the cutting ranges formed by the first cutting edge station and the second cutting edge station, respectively.

10. The cold forging progressive die as described in any one of claims 1-9, characterized in that, The upper mold includes, from top to bottom, an upper mold base, an upper mold pad, an upper clamping plate, a stripper pad, and a stripper plate; The lower mold includes a lower mold base, a lower mold pad, and a lower template arranged sequentially from bottom to top.

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