Hardware stamping progressive die
By designing a progressive die for stamping metal parts, integrating multiple workstations and optimizing material deformation, the efficiency and precision problems of traditional dies in the processing of complex metal parts have been solved, achieving efficient and stable production and maintenance results.
Patent Information
- Application Number
- CN202423282980.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Traditional metal stamping dies are inefficient and difficult to make accurate when processing complex metal parts. Composite dies are prone to cumulative errors and quality problems during continuous punching and multiple bending processes.
Design a progressive die for stamping hardware parts, including an upper die base and a lower die base. The die plates are provided with continuous punching, first bending and second bending stations. The material deformation and stress distribution are optimized through gap design. The die plates adopt a splicing structure for easy maintenance and replacement.
It improved production efficiency, reduced the number of times the material belt was loaded, unloaded and positioned, enhanced product precision and quality stability, reduced maintenance costs and scrap rate, and strengthened market competitiveness and economic benefits.
Smart Images
Figure CN223629347U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to die technical field, concretely is a hardware stamping continuous die. BACKGROUND
[0002] Hardware has wide application in modern industrial production, covers electronic equipment, automobile manufacturing, mechanical equipment, household appliance and many fields. The shape and structure of hardware are increasingly complex, and the requirement for its machining precision and production efficiency is also higher and higher. As one of the main methods of hardware manufacturing, stamping process has the advantages of high production efficiency, low cost, stable product quality and the like.
[0003] The traditional hardware stamping die mainly adopts single-process die, and this kind of die can only complete single stamping operation such as punching, bending and stretching each time. For example, when producing a simple hardware support with multiple punching and bending characteristics, it is necessary to first use a punching die to punch, and then transfer the semi-finished product to a bending die to bend. This processing method not only has low production efficiency, but also is prone to cumulative errors due to multiple clamping and positioning, which makes it difficult to ensure the precision of the product.
[0004] In order to improve the production efficiency, the composite die emerges as the times require. The composite die can complete multiple different stamping processes in one stamping stroke, such as punching and blanking at the same time, or punching and shallow stretching composite operation. However, when facing more complex hardware, especially those products that require accurate continuous punching and multiple accurate bending, the composite die exposes its limitations.
[0005] In terms of station layout, some continuous dies do not fully consider the processing technology characteristics and material deformation law of hardware. For example, when arranging the sequence of continuous punching stations and bending stations, some continuous dies do not comprehensively consider the influence of punching on material flow and stress distribution in the subsequent bending process, which leads to quality problems such as cracks and uneven deformation of hardware in the bending process, and reduces the qualified rate of products.
[0006] Therefore, it is necessary to provide an improved technical scheme to solve the above problems. UTILITY MODEL CONTENT
[0007] The utility model aims at providing a technical scheme that can solve the above problems.
[0008] A hardware stamping continuous die, comprising an upper die seat and a lower die seat, the upper die seat has an upper die plate, the lower die seat has a lower die plate, the upper die plate and the lower die plate are matched with each other and can move relatively, and a plurality of stations are arranged in sequence along the feeding direction of the material belt and between the upper die plate and the lower die plate.
[0009] The plurality of stations sequentially comprise a continuous punching station, a first bending station and a second bending station, the lower die plate comprises a punching die plate corresponding to the continuous punching station, a first bending die plate corresponding to the first bending station and a second bending die plate corresponding to the second bending station, the punching die plate, the first bending die plate and the second bending die plate are sequentially spliced and fixedly connected with the lower die seat;
[0010] Wherein, one side between the punching die plate and the first bending die plate is left with a first gap, and one side between the first bending die plate and the second bending die plate is left with a second gap.
[0011] As a further scheme of the utility model, the first bending die plate is provided with a first bending groove, the first bending groove is adjacent to the first gap, and the upper die plate is connected with a first bending punch corresponding to the first bending groove.
[0012] The punching die plate is provided with a first punching hole, and the first punching hole corresponds to the first gap and the first bending groove, and the upper die plate is connected with a first punching punch corresponding to the first punching hole.
[0013] As a further scheme of the utility model, the second bending die plate is provided with a second bending groove, the second bending groove is adjacent to the second gap, and the upper die plate is connected with a second bending punch corresponding to the second bending groove.
[0014] The first bending die plate is provided with a second punching hole, the second punching hole is arranged in an upper and lower staggered manner with the first bending groove, and the second punching hole corresponds to the second gap and the second bending groove, and the upper die plate is connected with a second punching punch corresponding to the second punching hole.
[0015] As a further scheme of the utility model, the second bending die plate is further provided with a blanking hole, the upper die plate is connected with a blanking punch corresponding to the blanking hole, wherein the blanking hole is arranged in an upper and lower staggered manner with the second bending groove, and the blanking hole is away from one side of the second gap.
[0016] As a further scheme of the utility model, the upper die plate and the lower die plate are respectively provided with an inlet and an outlet corresponding to the material belt at both ends, and the outlet is provided with an outlet chute.
[0017] Compared with the prior art, the utility model has the beneficial effects as follows:
[0018] 1) In terms of production efficiency, by integrating multiple processes such as continuous punching, first bending and second bending in a die set, the material belt can complete complex processing in a single stamping cycle, reducing the number of material belt loading and unloading, transferring and positioning, saving time and labor costs compared to traditional single-process dies, especially in large-scale production, which can quickly respond to market demand, improve product delivery capability and market share;
[0019] 2) In terms of product precision, continuous punching provides high-precision positioning reference for bending, and close cooperation between stations avoids cumulative errors, improving dimensional accuracy; The first gap and the second gap create a good environment for product bending deformation, ensuring shape accuracy and quality stability, reducing scrap rates, and can also adapt to various material properties, expanding the precision protection range, meeting complex assembly and diversified customer demand, enhancing product market competitiveness and added value;
[0020] 3) In terms of die maintenance and cost control, the spliced die plate is convenient for local repair and replacement, shortening downtime, reducing repair costs, labor input and spare parts inventory costs, improving maintenance efficiency and flexibility; At the same time, the improvement of die precision and stability prolongs the service life, reduces the replacement frequency, reduces the proportion of procurement and manufacturing costs, improves production continuity and stability, indirectly improves the economic benefits and production management level of enterprises, and provides strong support for sustainable development.
[0021] Additional aspects and advantages of the present application will be given in part in the following description, some of which will become apparent from the following description, or will be learned by practice of the present application. BRIEF DESCRIPTION OF DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0023] Fig. 1 is a structural schematic diagram of the present application;
[0024] Fig. 2 is a structural schematic diagram of the lower die plate in the present application;
[0025] Fig. 3 is a structural schematic diagram of the lower die plate and the material belt in the present application.
[0026] The reference signs and names in the drawings are as follows:
[0027] 1, upper die holder; 2, lower die holder; 3, upper die plate; 4, lower die plate; 5, punching die plate; 6, first bending die plate; 7, second bending die plate; 8, first gap; 9, second gap; 10, first bending groove; 11, first punching; 12, second bending groove; 13, second punching; 14, blanking hole; 15, feeding port; 16, discharging port; 17, discharging chute. DETAILED DESCRIPTION
[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0029] Please refer to Figs. 1-3 In the embodiments of the present application, a hardware stamping continuous die comprises an upper die holder 1 and a lower die holder 2, the upper die holder 1 has an upper die plate 3, the lower die holder 2 has a lower die plate 4, the upper die plate 3 and the lower die plate 4 are matched and can move relative to each other, and a plurality of stations are arranged in sequence along the feeding direction of the material belt and between the upper die plate 3 and the lower die plate 4.
[0030] The plurality of stations sequentially comprise a continuous punching station, a first bending station, and a second bending station, the lower die plate 4 comprises a punching die plate 5 corresponding to the continuous punching station, a first bending die plate 6 corresponding to the first bending station, and a second bending die plate 7 corresponding to the second bending station, the punching die plate 5, the first bending die plate 6, and the second bending die plate 7 are sequentially spliced and fixedly connected with the lower die holder 2.
[0031] Among them, a first gap 8 is left on one side between the punching die plate 5 and the first bending die plate 6, and a second gap 9 is left on one side between the first bending die plate 6 and the second bending die plate 7.
[0032] In the technical solutions of the present application, the continuous punching station is located at the front end, because the punching can provide a key positioning reference for subsequent bending operation, at the same time, the one-time completion of multiple punching actions can improve the production efficiency and meet the requirements of hardware on holes in assembly or function realization.
[0033] The first bending station and the second bending station are arranged according to the overall shape molding requirements of the hardware, the first bending station is used for bending operation on the specific part of the hardware, and the initial stage of shape molding is started, the bending angle and the die shape are reasonably designed, so that the product preliminarily has the required three-dimensional shape characteristics, and the second bending station is used for angle adjustment and shape optimization of the first bending part according to the final shape requirements of the hardware, so as to further improve the bending precision and quality of the part; or the other parts of the hardware are bent to complete the construction of the complex shape of the whole hardware, so that the flexible station design can adapt to the diversified shape requirements of different hardware, and the bending sequence and mutual influence relationship of different parts in the processing process are fully considered, so that the processing flow from the raw material to the final formed product is smooth and efficient;
[0034] The punching die plate 5, the first bending die plate 6 and the second bending die plate 7 are connected in a splicing manner and fixedly connected with the lower die seat 2, so as to realize the modular construction of the die, facilitate independent manufacturing and optimization of each station die plate, each die plate can be specially designed according to the corresponding punching or bending process, such as the punching layout of the punching die plate 5, the bending angle and the die contour of the bending die plate, so as to improve the processing precision and performance of each station, and in the long-term use process of the die, if the die plate of a station is worn, damaged or needs to be upgraded, the die plate can be individually disassembled and replaced, without the need of large-scale maintenance or replacement of the whole lower die seat 2, so that the maintenance cost and operation difficulty are greatly reduced, and the overall service life and adaptability of the die are improved;
[0035] The first gap 8 between the punching die plate 5 and the first bending die plate 6 mainly ensures that the punched product can smoothly transition to the first bending station, in the punching process, the product edge will inevitably be slightly deformed, have burrs or a small amount of waste residue, the first gap 8 provides a buffer space for these possible situations, prevents adverse effects on the first bending process, ensures that the product can enter the bending process in a suitable state, so as to ensure the initial bending precision, in addition, although the punching operation is equipped with a special waste removal system, there may still be a small amount of waste splashing or scattering in the actual stamping environment, the first gap 8 can be used as an additional defense line to reduce the possibility of waste entering the bending area, and further maintain the cleanliness and processing precision of the die;
[0036] The second gap 9 between the first bending die plate 6 and the second bending die plate 7 is mainly to provide necessary space support for material deformation of the product in the bending process, and when the product is partially bent in the first bending station, whether the part is continuously deep-bent or other parts are newly bent, the material will undergo a complex stress change and plastic deformation process, and the existence of the second gap 9 can effectively avoid the hindering of the product deformation caused by the rigid contact of the two bending die plates under stress, ensure that the material can freely stretch and shrink in the bending process, reasonably distribute the stress, and ensure that the product can obtain good shape accuracy and quality stability in the two bending processes, effectively prevent defects such as wrinkles, cracks, and angle deviation; wherein the first gap 8 also has the function of providing necessary space support for material deformation of the product in the bending process;
[0037] In summary, in terms of production efficiency, by integrating multiple processes such as continuous punching, first bending, and second bending in one die, the material belt can complete complex processing in a single stamping cycle, reducing the number of material belt loading, unloading, transferring, and positioning, significantly saving time and labor costs compared to traditional single-process dies, especially in large-scale production, which can quickly respond to market demand, improve product delivery capability and market share; in terms of product accuracy, continuous punching provides high-precision positioning reference for bending, and close cooperation between stations avoids cumulative errors, improving dimensional accuracy; the first gap 8 and the second gap 9 create a good environment for product bending deformation, ensuring shape accuracy and quality stability, reducing scrap rates, and also adapting to various material properties, expanding the range of precision protection, meeting complex assembly and diversified customer demand, enhancing product market competitiveness and added value; in terms of die maintenance and cost control, the spliced die plate is convenient for local repair and replacement, shortening downtime, reducing maintenance costs, labor input, and spare parts inventory costs, improving maintenance efficiency and flexibility; at the same time, the improved die precision and stability prolong the service life, reduce the replacement frequency, reduce the proportion of procurement and manufacturing costs, improve production continuity and stability, indirectly improve enterprise economic benefits and production management level, and provide strong support for sustainable development.
[0038] In the embodiment of the utility model, the first bending die plate 6 is provided with a first bending groove 10, the first bending groove 10 is adjacent to the first gap 8, and the upper die plate 3 is connected with a first bending punch corresponding to the first bending groove 10;
[0039] The punching die plate 5 is provided with a first punching hole 11, and the first punching hole 11 corresponds to the first gap 8 and the first bending groove 10, and the upper die plate 3 is connected with a first punching punch corresponding to the first punching hole 11;
[0040] The second bending die plate 7 is provided with a second bending groove 12 adjacent to the second gap 9, and the upper die plate 3 is connected with a second bending punch corresponding to the second bending groove 12.
[0041] The first bending die plate 6 is provided with a second punching hole 13 arranged in an up-down staggered manner with the first bending groove 10, and the second punching hole 13 corresponds to the second gap 9 and the second bending groove 12, and the upper die plate 3 is connected with a second punching hole punch corresponding to the second punching hole 13.
[0042] In the aspect of punching, the first punching hole 11 is arranged on the punching die plate 5 and corresponds to the first gap 8 and the first bending groove 10, which is designed to effectively avoid the waste material from entering the first bending station and affecting the bending accuracy, and ensure that the influence of punching can be reasonably dispersed and absorbed during the first bending process, so as to avoid the adverse effect on the accuracy of the first bending, and at the same time, the state of the material after punching can be adapted to the position of the first bending groove 10, so as to provide suitable starting conditions for subsequent bending operation.
[0043] The second punching hole 13 is arranged on the first bending die plate 6 and arranged in an up-down staggered manner with the first bending groove 10, and corresponds to the second gap 9 and the second bending groove 12, which considers the shape change of the hardware after the first bending and the requirement of the subsequent second bending. Through the up-down staggered design, the material can be further punched without affecting the first bending operation, so as to provide necessary hole features for the second bending or adjust the local performance of the material, and the corresponding relationship between the second punching hole 13 and the second gap 9 and the second bending groove 12 ensures that the influence of punching can be reasonably dispersed and absorbed during the second bending process, so as to avoid the adverse effect on the accuracy of the second bending.
[0044] In the embodiment of the utility model, the second bending die plate 7 is further provided with a blanking hole position 14, and the upper die plate 3 is connected with a blanking punch corresponding to the blanking hole position 14, wherein the blanking hole position 14 is arranged in an up-down staggered manner with the second bending groove 12, and the blanking hole position 14 is away from one side of the second gap 9.
[0045] After the material belt enters the mold, the first punching 11 punches off at the lower end of the product to provide a boundary for subsequent bending, and the punching design controls material stress to facilitate processing, and the edge of the punched-off part is fitted to the profile of the bending die to help improve bending accuracy and quality; after the first bending, the second punching 13 punches off at the middle end of the product to adjust the internal stress for the second bending, and the position cooperates with other punching and blanking holes to ensure that the processing sequence and material deformation and fracture are carried out according to the predetermined process, facilitate control of product shape and size, and realize complex shape molding; after punching and bending, the blanking punch punches off at the upper end of the product to complete blanking, the blanking hole 14 is closely matched with other punching and bending grooves to ensure product integrity, and step-by-step punching off makes the stress release uniform, reducing product defects.
[0046] In the embodiment of the utility model, the upper die plate 3 and the lower die plate 4 are respectively provided with an inlet 15 and an outlet 16 corresponding to the material belt at both ends, and a discharge chute 17 is arranged at the outlet 16.
[0047] The inlet 15 and the outlet 16 are arranged at both ends of the die plate, the inlet 15 is accurately matched with the size and shape of the material belt to ensure that the material belt enters the mold stably and provides accurate positioning for subsequent processes; the outlet 16 is planned according to the state of the material belt after processing to ensure that it leaves smoothly and avoid collision and jam to maintain the continuity and stability of stamping.
[0048] The discharge chute 17 at the outlet 16 is designed according to the possible deformation and surface condition of the material belt after processing, and its smooth surface and appropriate inclination angle guide and support the material belt to make it slide out along the predetermined path naturally, reducing friction and preventing the material belt from swinging and falling off and scratching the surface to ensure the surface quality of the product.
[0049] It is obvious to those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.
Claims
1. A hardware stamping progressive die, characterized by, The upper die base has an upper die plate, and the lower die base has a lower die plate, which are matched and movable relative to each other, and a plurality of stations are arranged in sequence along the feeding direction of the material belt and between the upper die plate and the lower die plate. The plurality of stations sequentially include a continuous punching station, a first bending station, and a second bending station, the lower die plate includes a punching die plate corresponding to the continuous punching station, a first bending die plate corresponding to the first bending station, and a second bending die plate corresponding to the second bending station, and the punching die plate, the first bending die plate, and the second bending die plate are sequentially spliced and fixedly connected with the lower die base. The first gap is left on one side between the punching die plate and the first bending die plate, and the second gap is left on one side between the first bending die plate and the second bending die plate.
2. A stamping progressive die for hardware according to claim 1, wherein The first bending die plate is provided with a first bending groove adjacent to the first gap, and the upper die plate is connected with a first bending punch corresponding to the first bending groove. The punching die plate is provided with a first punching hole corresponding to the first gap and the first bending groove, and the upper die plate is connected with a first punching punch corresponding to the first punching hole.
3. A stamping progressive die for hardware according to claim 2, wherein The second bending die plate is provided with a second bending groove adjacent to the second gap, and the upper die plate is connected with a second bending punch corresponding to the second bending groove. The first bending die plate is provided with a second punching hole, which is arranged in a staggered manner with the first bending groove and corresponds to the second gap and the second bending groove, and the upper die plate is connected with a second punching punch corresponding to the second punching hole.
4. A stamping progressive die for hardware according to claim 3, wherein The second bending die plate is further provided with a blanking hole, and the upper die plate is connected with a blanking punch corresponding to the blanking hole, wherein the blanking hole is arranged in a staggered manner with the second bending groove and is away from one side of the second gap.
5. The stamping progressive die for hardware according to claim 1, wherein The upper die plate and the lower die plate are respectively provided with an inlet and an outlet corresponding to the material belt at both ends, and the outlet is provided with an outlet chute.