Stainless steel camera decorative ring forming die and forming method

Abstract

The present application relates to camera manufacturing technical field, especially disclose a kind of stainless steel camera decorative ring forming die, including upper die mechanism, lower die mechanism, the lower die mechanism includes sequentially arranged lower die seat, lower backing plate, lower die plate and lower die core, lower die plate is equipped with lower die installation groove, lower die core is movably arranged on lower die plate via lower die installation groove, upper die mechanism is equipped with upper die core, upper die core and lower die core form die cavity by clamping;To be machined piece is placed in die cavity, upper die mechanism is equipped with insert cutter, insert cutter is in contact with lower die core, drive lower die core relative to lower die movement, lower die core is in contact with the to-be-processed piece in stamping die cavity.The present application utilizes insert cutter to drive lower die core movement, forms square cavity by precision mould control, realizes accurate conversion from round blank to square finished product, changes the problems of traditional CNC production multiple work stations, removes excess material, low processing efficiency, long cycle, low utilization.

Description

Technical Field

[0001] This invention relates to the field of camera manufacturing technology, and in particular discloses a stainless steel camera decorative ring forming mold and forming method. Background Technology

[0002] In recent years, with the rapid development of consumer electronics products, the mobile phone market has shown an explosive growth trend. High-end smartphones usually focus on the appearance design of the camera module. Stainless steel camera decorative rings can enhance the overall texture of the camera and enhance the consumer's product experience.

[0003] Existing stainless steel camera decorative ring production technology primarily employs a full CNC machining process. This involves using stainless steel sheet as raw material, and then processing it step-by-step at multiple machining stations using CNC machine tools, removing excess material to form the final square camera decorative ring. While this process achieves product shaping to some extent, it suffers from the following significant drawbacks: low processing efficiency and long cycle time. The full CNC machining process involves multiple machining stations, each performing step-by-step trimming of the raw material. The numerous steps and long processing time make this traditional process a bottleneck in mass production, failing to meet market demands for high-efficiency manufacturing. Low raw material utilization. Using solid square stainless steel sheet as raw material generates a large amount of excess material during product shaping, resulting in significant raw material waste. Even after improvements to the CNC machining process and optimization of the program sequence, although material utilization has increased to some extent, the overall effect still falls short of the goal of cost reduction and efficiency improvement. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide a stainless steel camera decorative ring forming mold with high processing efficiency, short cycle and high utilization rate.

[0005] To achieve the above objectives, the present invention provides a stainless steel camera decorative ring forming mold, comprising an upper mold mechanism and a lower mold mechanism. The lower mold mechanism includes a lower mold base, a lower pad, a lower template, and a lower mold core arranged sequentially. The lower template has a lower mold mounting groove, and the lower mold core is movably mounted on the lower template via the lower mold mounting groove. The upper mold mechanism has an upper mold core, and the upper and lower mold cores close together to form a mold cavity. The workpiece to be processed is placed in the mold cavity. The upper mold mechanism has a cutting tool that abuts against the lower mold core, driving the lower mold core to move relative to the lower mold. The lower mold core and the upper mold core cooperate to stamp the workpiece to be processed in the mold cavity, thus processing the workpiece into a product. The present invention utilizes a cutting tool to drive the movement of the lower mold core, and through precision mold control, forms a square cavity, achieving precise conversion from a round blank to a square finished product. This overcomes the problems of traditional CNC production, such as multiple workstations for excess material deduction, low processing efficiency, long cycle time, and low utilization rate.

[0006] Furthermore, the lower mold core includes a first slider and a second slider. One end of the first slider has an arc-shaped concave surface that abuts against the workpiece. The other end of the first slider has a first guide groove, and the side wall of the first guide groove has a first inclined surface. The insert pushes against the first inclined surface, driving the first slider to slide closer to the workpiece. One end of the second slider has an arc-shaped convex surface, and the other end of the second slider has a second guide groove, and the side wall of the second guide groove has a second inclined surface. The insert pushes against the second inclined surface, driving the second slider to slide away from the workpiece. This dual-slider structure allows for bidirectional control during the molding process: one side advances while the other pulls, thus forming an ideal cavity shape. The first slider is responsible for stamping the edges of the square product, gradually transforming the circular blank into a square shape through inward pushing force. The second slider is responsible for stamping the four corners of the square product, making the square structure more regular through outward pulling force. The bidirectional movement of the sliders ensures uniform force distribution in the cavity during molding, avoiding stress concentration and material springback, thereby improving product accuracy and stability.

[0007] Furthermore, both the first and second sliders are provided in four sets, arranged in an alternating ring. This arrangement ensures that the workpiece is subjected to uniform force in all directions, improving the forming accuracy of the square structure. The four sets of first sliders mainly act on the edges of the square product, pushing the material inward to form, while the four sets of second sliders mainly act on the corners of the square product, pulling outward to ensure precise forming of the four corners. This solves the problem of uneven stress concentration that occurs in the square forming process of traditional unidirectional stamping dies, and avoids the problem of inconsistent corner roundness that may occur when using a slider in only one direction.

[0008] Furthermore, the upper die core is provided with limiting grooves that match the arc-shaped concave surface and arc-shaped convex surface. These limiting grooves prevent deformation of the workpiece during the forming process. During stamping, the limiting grooves provide precise positioning and support for the workpiece, ensuring that the material does not undergo excessive deformation or warping during plastic deformation. This ensures controlled deformation, preventing it from exceeding the predetermined shape, while also reducing stress concentration, preventing uneven deformation, and improving the dimensional accuracy and appearance quality of the product. Traditional CNC machining suffers from significant dimensional deviations in batches of products. However, with this limiting groove structure, the dimensions of each batch of finished products are more stable, and tolerance control is better. Simultaneously, the limiting grooves can evenly distribute the stamping pressure, preventing damage caused by excessive localized stress on the die, increasing die lifespan, and reducing production costs.

[0009] Furthermore, the insert cutter has an inclined guide surface at one end near the lower mold core, which presses against the first and second inclined surfaces respectively. When the insert cutter moves downward, its inclined guide surface first contacts the first and second inclined surfaces. The inclined angle design drives the first and second sliders in the lower mold core respectively. The first slider moves towards the workpiece due to the push of the insert cutter, forming a stamping of the square edge; the second slider moves outward under the action of the insert cutter, coordinating the adjustment of the corner shape. Using the inclined guide surface, the insert cutter can more precisely transmit force to the two sliders of the lower mold core, achieving bidirectional control and ensuring uniform force distribution throughout the molding process. The inclined guide surface design effectively prevents movement deviation of the lower mold core caused by uneven impact force transmission, thereby avoiding local over- or under-pressure on the workpiece and ensuring molding accuracy.

[0010] Furthermore, the upper die mechanism also includes an upper die base, an upper pad, an upper clamping plate, a stop plate, and a stripper plate arranged sequentially. The upper die base, upper pad, and upper clamping plate are connected by fasteners. The stop plate and stripper plate are slidably connected to the upper clamping plate by equal-height screws. A cutting tool is mounted on the upper clamping plate and passes through the stop plate and stripper plate in sequence to abut against the lower die core. The stripper plate has an upper die mounting groove, and the upper die core is placed in the upper die mounting groove. Each component adopts a modular design and is connected and slidably adjusted by fasteners and equal-height screws. The structure is stable and easy to maintain. The modular structure gives the upper die mechanism good adaptability, and the position and movement trajectory of each component can be flexibly adjusted according to specific process requirements. After the cutting tool is fixed on the upper clamping plate, it passes through the stop plate and stripper plate in sequence to evenly transmit the stamping force to the lower die core. This design ensures the force coordination between the upper and lower die mechanisms during the stamping process, effectively improving the forming accuracy.

[0011] Furthermore, the upper mold core is equipped with an ejection assembly, which includes an elastic element and a stripper pin. One end of the elastic element is connected to a stop plate, and the other end is connected to the stripper pin. The stripper pin passes through the upper mold mounting groove and contacts the external workpiece. During the stamping process, when the upper mold mechanism rises and the stripper plate leaves the limit block, the ejection assembly, through the elastic force of the elastic element, ejects the stripper pin, pushing the product out of the mold cavity, thereby achieving automatic ejection of the formed product. The ejection assembly enables the product to be automatically demolded after molding, reducing manual intervention and subsequent manual processing steps. The elastic element can effectively buffer the impact force during the ejection process, reducing mechanical damage to the product and mold. The stripper pin passes through the upper mold mounting groove and contacts the external workpiece, ensuring accurate ejection force and position, and ensuring that the product does not shift or get damaged during demolding. The automatic ejection function accelerates the molding cycle, shortens the time from molding to demolding, which is beneficial for mass production. At the same time, it reduces uneven force input that may be caused by manual operation, thereby extending mold life and reducing maintenance costs.

[0012] Furthermore, a reset assembly is provided between the upper clamping plate and the stop plate. The reset assembly includes a reset spring and a guide post. The guide post is mounted on the upper die base, and its lower end passes sequentially through the upper pad, upper clamping plate, stop plate, and stripper plate. One end of the reset spring is connected to the upper die base, and the other end is connected to the stop plate. After the stamping cycle ends, when the upper die mechanism rises, the reset spring, guided by the guide post, quickly and accurately resets the stop plate and other upper die components to their predetermined initial positions, preparing for the next stamping cycle. The reset assembly enables the automatic return of the stop plate in the upper die mechanism, avoiding uncertainties caused by manual operation and ensuring that all components return to their accurate positions after each forming cycle. The through-type guide post ensures the relative position stability between the components of each layer of the upper die, resulting in higher repeatability and positioning accuracy for each forming cycle, thereby improving product consistency. The automatic reset function significantly shortens the die cycle time, reduces manual interference, and improves production efficiency, making it suitable for large-scale continuous production.

[0013] Furthermore, the lower die mechanism also includes a limiting block disposed on the lower die plate, which is fixedly connected to the lower die plate via fasteners. The limiting block provides reliable physical constraint for the lower die core, ensuring uniform force distribution during stamping and guaranteeing greater consistency in dimensional accuracy and geometry of the workpiece after forming. By setting the limiting block, uncontrolled movement of the lower die core due to excessive force can be effectively prevented, reducing the risk of excessive material deformation or damage. Since the limiting block ensures the precise position of the lower die core during forming, the scrap rate caused by die movement deviation is reduced, thereby improving overall production efficiency and product quality consistency.

[0014] A method for forming a stainless steel camera decorative ring includes the following steps:

[0015] S1. Place the workpiece to be processed in the cavity. When the upper mold mechanism moves downward to the point where the stripper plate contacts the limiting block of the lower mold mechanism, the workpiece to be processed is fixed and pre-pressed in the cavity to prevent deformation during the molding process.

[0016] S2. As the upper die mechanism continues to move downward to the lowest point of the punch press's stroke, the cutting tool follows the upper clamping plate down and pushes the lower die core on the lower template. The workpiece is constrained by the cavity and gradually becomes square.

[0017] S3. During the upward movement of the upper die mechanism to the highest point of the punching stroke, when the stripper plate leaves the limit block, the stripper pin pushes the product stuck in the cavity out of the cavity.

[0018] The beneficial effects of the present invention are as follows: The present invention uses a cutting tool to drive the movement of the lower mold core, and through precision mold control, a square cavity is formed, realizing the precise conversion from a round blank to a square finished product. This changes the problems of traditional CNC production, such as multiple workstations for deducting excess material, low processing efficiency, long cycle time, and low utilization rate.

[0019] The dual-slider structure allows for bidirectional control during the molding process: one slider advances while the other pulls, thus forming the ideal cavity shape. The first slider is responsible for stamping the edges of the square product, gradually transforming the round blank into a square shape through inward pushing force. The second slider is responsible for stamping the four corners of the square product, making the square structure more regular through outward pulling force. The bidirectional movement of the sliders ensures that the cavity is subjected to uniform force during the molding process, avoiding stress concentration and material springback, thereby improving product accuracy and stability.

[0020] Each component adopts a modular design, and is connected and slidably adjusted by fasteners and equal-height screws. The structure is stable and easy to maintain. The modular structure makes the upper die mechanism highly adaptable, and the position and movement trajectory of each component can be flexibly adjusted according to specific process requirements. After the cutting tool is fixed on the upper clamping plate, it passes through the stop plate and stripper plate in sequence to evenly transmit the stamping pressure to the lower die core. This design ensures the force coordination between the upper die mechanism and the lower die mechanism during the stamping process, effectively improving the forming accuracy. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a stainless steel camera decorative ring forming mold according to the present invention;

[0022] Figure 2 This is an exploded view of the upper mold mechanism of the present invention;

[0023] Figure 3 This is an exploded view of the lower mold mechanism of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of the lower mold core of the present invention;

[0025] Figure 5 This is a schematic diagram of the lower mold core of the present invention from another perspective;

[0026] Figure 6 for Figure 5 A cross-sectional schematic diagram of AA in the middle;

[0027] Figure 7 for Figure 5 Cross-sectional schematic diagram of BB;

[0028] Figure 8 for Figure 2 A partial schematic diagram of A in the middle;

[0029] Figure 9 This is a schematic diagram of the structure of the workpiece to be processed according to the present invention;

[0030] Figure 10 This is a schematic diagram of the structure of the product of the present invention.

[0031] The reference numerals in the figures include:

[0032] 1. Upper mold mechanism; 2. Lower mold mechanism; 3. Lower mold base; 4. Lower backing plate; 5. Lower template; 6. Lower mold core; 7. Lower mold mounting groove; 8. Upper mold core; 9. Insert cutter; 10. First slider; 11. Second slider; 12. Arc-shaped concave surface; 13. First guide groove; 14. First inclined surface; 15. Arc-shaped convex surface; 16. Second guide groove; 17. Second inclined surface; 18. Limiting groove; 19. Upper mold base; 20. Upper backing plate; 21. Upper clamping plate; 22. Stop plate; 23. Stripper plate; 24. Upper mold mounting groove; 25. Ejector assembly; 26. Elastic element; 27. Stripper pin; 28. Reset assembly; 29. ​​Reset spring; 30. Guide post; 31. Limiting block. Detailed Implementation

[0033] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0034] Please see Figures 1 to 10 As shown, this invention provides a stainless steel camera decorative ring forming mold, comprising an upper mold mechanism 1 and a lower mold mechanism 2. The lower mold mechanism 2 includes a lower mold base 3, a lower pad 4, a lower template 5, and a lower mold core 6 arranged sequentially. The lower template 5 has a lower mold mounting groove 7, and the lower mold core 6 is movably mounted on the lower template 5 via the lower mold mounting groove 7. The upper mold mechanism 1 has an upper mold core 8, and the upper mold core 8 and the lower mold core 6 are closed to form a mold cavity. The workpiece to be processed is placed in the mold cavity. The upper mold mechanism 1 has a cutting tool 9, which abuts against the lower mold core 6, driving the lower mold core 6 to move relative to the lower mold. The lower mold core 6 and the upper mold core 8 cooperate to stamp the workpiece to be processed in the mold cavity, thus processing the workpiece into a product. This invention utilizes the cutting tool 9 to drive the movement of the lower mold core 6, and through precision mold control, forms a square cavity, achieving precise conversion from a round blank to a square finished product. This changes the problems of traditional CNC production, such as multiple workstations for deducting excess material, low processing efficiency, long cycle time, and low utilization rate.

[0035] Specifically, the workpiece to be processed is a circular blank material of annular steel pipe processed by lathe. Compared with traditional CNC production, it reduces the deduction of excess blank material, reduces the amount of CNC processing, shortens the processing cycle, and improves production efficiency.

[0036] The lower mold core 6 includes a first slider 10 and a second slider 11. One end of the first slider 10 has an arc-shaped concave surface 12 that abuts against the workpiece. The other end of the first slider 10 is provided with a first guide groove 13. The side wall of the first guide groove 13 is provided with a first inclined surface 14. The inserter 9 abuts against and pushes against the first inclined surface 14, causing the first slider 10 to slide towards the workpiece. One end of the second slider 11 has an arc-shaped convex surface 15. The other end of the second slider 11 is provided with a second guide groove 16. The side wall of the second guide groove 16 is provided with a second inclined surface 17. The inserter 9 abuts against and pushes against the second inclined surface 17, causing the second slider 11 to slide away from the workpiece. The dual-slider structure enables bidirectional control during the molding process: one side advances while the other pulls, thus forming the ideal cavity shape. The first slider 10 is responsible for stamping the edge of the square product, and through the inward pushing force, it gradually transforms the circular blank into a square shape. The second slider 11 is responsible for stamping the four corners of the square product, and through the outward pulling force, it makes the square structure more regular. The bidirectional movement of the sliders ensures that the cavity is subjected to uniform force during the molding process, avoiding stress concentration and material springback, thereby improving product accuracy and stability.

[0037] Both the first slider 10 and the second slider 11 are provided in four sets, arranged in a circular alternating pattern. This arrangement ensures that the workpiece is subjected to uniform force in all directions, improving the forming accuracy of the square structure. The four sets of first sliders 10 mainly act on the edges of the square product, pushing the material inward to form, while the four sets of second sliders 11 mainly act on the corners of the square product, pulling outward to ensure precise forming of the four corners. This solves the problem of uneven stress concentration that occurs in the square forming process of traditional unidirectional stamping dies, and avoids the problem of inconsistent corner roundness that may occur when using a slider in only one direction.

[0038] The upper die core 8 is provided with a limiting groove 18 that matches the arc-shaped concave surface 12 and the arc-shaped convex surface 15. The limiting groove 18 is used to prevent deformation of the workpiece during the forming process. During the stamping process, the limiting groove 18 plays a role in precise positioning and support of the workpiece, ensuring that the material does not undergo excessive deformation or warping during plastic deformation, ensuring that deformation is controlled and does not exceed the predetermined shape, while reducing stress concentration, preventing uneven deformation, and improving the dimensional accuracy and appearance quality of the product. Traditional CNC machining has the problem of large dimensional deviations in batch products. However, with the use of this limiting groove 18 structure, the dimensions of each batch of finished products are more stable and the tolerance control is better. At the same time, the limiting groove 18 can evenly distribute the stamping pressure, avoid damage caused by excessive local stress on the die, improve the die life and reduce production costs.

[0039] The inserter 9 has an inclined guide surface at one end near the lower mold core 6, which presses against the first inclined surface 14 and the second inclined surface 17. When the inserter 9 moves downward, its inclined guide surface first contacts the first inclined surface 14 and the second inclined surface 17. The inclined angle design drives the first slider 10 and the second slider 11 in the lower mold core 6 respectively. The first slider 10 moves closer to the workpiece due to the push of the inserter 9, forming a stamping of the square edge; the second slider 11 moves outward under the action of the inserter 9, coordinating the adjustment of the corner shape. Using the inclined guide surface, the inserter 9 can more accurately transmit force to the two sliders of the lower mold core 6, achieving bidirectional control and ensuring uniform force distribution throughout the molding process. The inclined guide surface design effectively prevents movement deviation of the lower mold core 6 caused by uneven impact force transmission, thereby avoiding local over- or under-pressure on the workpiece and ensuring molding accuracy.

[0040] The upper mold mechanism 1 also includes an upper mold base 19, an upper pad 20, an upper clamping plate 21, a stop plate 22, and a stripper plate 23 arranged in sequence. The upper mold base 19, the upper pad 20, and the upper clamping plate 21 are connected by fasteners. The stop plate 22 and the stripper plate 23 are slidably connected to the upper clamping plate 21 by equal-height screws. The inserter 9 is arranged on the upper clamping plate 21. The inserter 9 passes through the stop plate 22 and the stripper plate 23 in sequence and abuts against the lower mold core 6. The stripper plate 23 is provided with an upper mold mounting groove 24, and the upper mold core 8 is placed in the upper mold mounting groove 24. Each component adopts a modular design, and is connected and slidably adjusted by fasteners and equal-height screws. The structure is stable and easy to maintain. The modular structure makes the upper die mechanism 1 highly adaptable, and the position and movement trajectory of each component can be flexibly adjusted according to specific process requirements. After the insert 9 is fixed on the upper clamping plate 21, it passes through the stop plate 22 and the stripper plate 23 in sequence to evenly transmit the stamping pressure to the lower die core 6. This design ensures the force coordination between the upper die mechanism 1 and the lower die mechanism 2 during the stamping process, effectively improving the forming accuracy.

[0041] The upper mold core 8 is equipped with an ejector assembly 25, which includes an elastic element 26 and a stripper pin 27. One end of the elastic element 26 is connected to the stop plate 22, and the other end is connected to the stripper pin 27. The stripper pin 27 passes through the upper mold mounting groove 24 and abuts against the external workpiece. During the stamping process, when the upper mold mechanism 1 rises and the stripper plate 23 leaves the limit block 31, the ejector assembly 25 ejects the stripper pin 27 through the elastic force of the elastic element 26, pushing the product in the mold cavity to detach, thereby realizing automatic ejection of the formed product. The ejector assembly 25 enables the product to be automatically demolded after molding, reducing manual intervention and subsequent manual processing steps. The elastic element 26 can effectively buffer the impact force during the ejection process, reducing mechanical damage to the product and mold. The stripper pin 27 passes through the upper mold mounting groove 24 and contacts the external workpiece, ensuring the accuracy of the ejection force and position, and ensuring that the product does not shift or get damaged during demolding. Automatic ejection accelerates the molding cycle and shortens the time from molding to demolding, which is beneficial for mass production. At the same time, it reduces uneven force input that may be caused by manual operation, thereby extending mold life and reducing maintenance costs.

[0042] A reset assembly 28 is provided between the upper clamping plate 21 and the stop plate 22. The reset assembly 28 includes a reset spring 29 and a guide post 30. The guide post 30 is installed on the upper mold base 19. The lower end of the guide post 30 passes through the upper pad 20, the upper clamping plate 21, the stop plate 22 and the stripper plate 23 in sequence. One end of the reset spring 29 is connected to the upper mold base 19 and the other end of the reset spring 29 is connected to the stop plate 22. After the stamping cycle ends, when the upper die mechanism 1 rises, the return spring 29, guided by the guide post 30, quickly and accurately resets the stop plate 22 and other upper die components to the predetermined initial position, preparing for the next stamping cycle. The reset component 28 realizes the automatic return of the stop plate 22 in the upper die mechanism 1, avoiding the uncertainty caused by manual operation, and ensuring that each component returns to the accurate position after each forming cycle. The through setting of the guide post 30 ensures the relative position stability between the components of each layer of the upper die, making the repeatability of positioning more accurate for each forming, thereby improving the consistency of the product. The automatic reset function greatly shortens the die cycle time, reduces manual interference, and improves production efficiency, making it suitable for mass continuous production.

[0043] The lower die mechanism 2 also includes a limiting block 31 disposed on the lower die plate 5, which is fixedly connected to the lower die plate 5 via fasteners. The limiting block 31 provides reliable physical constraint for the lower die core 6, ensuring uniform force distribution during stamping and guaranteeing greater consistency in dimensional accuracy and geometry of the workpiece after forming. By setting the limiting block 31, uncontrolled movement of the lower die core 6 due to excessive force can be effectively prevented, reducing the risk of excessive material deformation or damage. Since the limiting block 31 ensures the precise position of the lower die core 6 during forming, the scrap rate caused by die movement deviation is reduced, thereby improving overall production efficiency and product quality consistency.

[0044] A method for forming a stainless steel camera decorative ring includes the following steps:

[0045] S1. Place the workpiece to be processed in the cavity. When the upper mold mechanism 1 moves downward to the point where the stripper plate 23 contacts the limiting block 31 of the lower mold mechanism 2, the workpiece to be processed is fixed and pre-pressed in the cavity to prevent deformation during the molding process.

[0046] S2. As the upper die mechanism 1 continues to move downward to the lowest point of the punch press stroke, the insert 9 slides down with the upper clamping plate 21 and pushes the lower die core 6 on the lower template 5 from the side. The workpiece to be processed is constrained by the cavity and gradually becomes square.

[0047] S3. During the process of the upper die mechanism 1 moving upward to the highest point of the punching stroke, when the stripper plate 23 leaves the limit block 31, the stripper pin 27 pushes the product stuck in the cavity out of the cavity.

[0048] Specifically, step S1 includes: placing the workpiece to be processed in the cavity; when the upper mold mechanism 1 moves downward to the point where the stripper plate 23 contacts the limiting block 31 of the lower mold mechanism 2, the upper mold core 8 and the lower mold core 6 complete the mold closing; the workpiece to be processed is fixed and pre-pressed in the cavity to prevent deformation during the molding process; the stripper pin 27 abuts against the workpiece to be processed in the cavity; and the elastic element 26 begins to compress.

[0049] Specifically, step S2 includes: as the upper die mechanism 1 continues to move downward to the lowest point of the punch press stroke, the upper die base 19, the upper pad 20 and the upper clamping plate 21 continue to move downward, the return spring 29 begins to compress, the insert 9 slides down with the upper clamping plate 21, the inclined guide surface of the insert 9 abuts against the first inclined surface 14 of the first slider 10 and the second inclined surface 17 of the second slider 11 respectively, the first slider 10 slides towards the workpiece, the arc-shaped concave surface 12 squeezes the workpiece to form the edge of the square product inward, the second slider 11 slides away from the workpiece, the arc-shaped convex surface 15 squeezes the corner of the workpiece to form the square product outward, and the workpiece is constrained by the cavity and gradually becomes a square product.

[0050] Specifically, step S3 includes: the upper mold base 19, the upper pad 20, and the upper clamping plate 21 move upwards, the return spring 29 releases elastic potential energy, the stop plate 22 and the stripper plate 23 remain stationary relative to the lower mold mechanism 2, and the inserter 9 follows the upper clamping plate 21 away from the lower mold mechanism 2; during the process of the upper mold mechanism 1 moving upwards to the highest point of the punching stroke, the upper mold base 19, the upper pad 20, and the upper clamping plate 21 continue to move upwards, the upper clamping plate 21 drives the stop plate 22 and the stripper plate 23 to move upwards, the elastic element 26 releases elastic potential energy, and when the stripper plate 23 leaves the limiting block 31, the stripper needle 27 pushes the product stuck in the cavity out of the cavity.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A stainless steel camera decorative ring forming mold, characterized in that, The system includes an upper mold mechanism (1) and a lower mold mechanism (2). The lower mold mechanism (2) includes a lower mold base (3), a lower pad (4), a lower template (5), and a lower mold core (6) arranged in sequence. The lower template (5) is provided with a lower mold mounting groove (7). The lower mold core (6) is movably mounted on the lower template (5) through the lower mold mounting groove (7). The upper mold mechanism (1) is provided with an upper mold core (8). The upper mold core (8) and the lower mold core (6) are closed to form a mold cavity. The workpiece to be processed is placed in the mold cavity. The upper mold mechanism (1) is provided with a cutting tool (9). The cutting tool (9) abuts against the lower mold core (6) and drives the lower mold core (6) to move relative to the lower mold. The lower mold core (6) and the upper mold core (8) cooperate to stamp the workpiece to be processed in the mold cavity, so that the workpiece to be processed is processed into a product. The lower mold core (6) includes a first slider (10) and a second slider (11). One end of the first slider (10) has an arc-shaped concave surface (12) that abuts against the workpiece. The other end of the first slider (10) is provided with a first guide groove (13). The side wall of the first guide groove (13) is provided with a first inclined surface (14). The inserter (9) abuts against and pushes the first inclined surface (14) to drive the first slider (10) to slide towards the workpiece. One end of the second slider (11) has an arc-shaped convex surface (15). The other end of the second slider (11) is provided with a second guide groove (16). The side wall of the second guide groove (16) is provided with a second inclined surface (17). The inserter (9) abuts against and pushes the second inclined surface (17) to drive the second slider (11) to slide away from the workpiece. The first slider (10) and the second slider (11) are each provided with four sets. The first slider (10) and the second slider (11) are arranged in a ring-shaped alternating arrangement. The upper mold core (8) is provided with a limiting groove (18) that is compatible with the arc-shaped concave surface (12) and the arc-shaped convex surface (15). The limiting groove (18) is used to prevent deformation during the forming process of the workpiece. The workpiece is a circular blank material of an annular steel pipe processed by a lathe. The first slider (10) is responsible for stamping the edge part of the square product. By pushing inward, the circular blank is gradually transformed into a square. The second slider (11) is responsible for stamping the four corner parts of the square product. By pulling outward, the square structure is made more regular.

2. The stainless steel camera decorative ring forming mold according to claim 1, characterized in that: The inserter (9) has an inclined guide surface at one end near the lower mold core (6), and the inclined guide surface presses against the first inclined surface (14) and the second inclined surface (17) respectively.

3. The stainless steel camera decorative ring forming mold according to claim 1, characterized in that: The upper mold mechanism (1) also includes an upper mold base (19), an upper pad (20), an upper clamping plate (21), a stop plate (22), and a stripper plate (23) arranged in sequence. The upper mold base (19), the upper pad (20), and the upper clamping plate (21) are connected by fasteners. The stop plate (22) and the stripper plate (23) are slidably connected to the upper clamping plate (21) by equal-height screws. The inserter (9) is set on the upper clamping plate (21). The inserter (9) passes through the stop plate (22) and the stripper plate (23) in sequence and abuts against the lower mold core (6). The stripper plate (23) is provided with an upper mold mounting groove (24). The upper mold core (8) is placed in the upper mold mounting groove (24).

4. The stainless steel camera decorative ring forming mold according to claim 3, characterized in that: The upper mold core (8) is provided with an ejection assembly (25), which includes an elastic element (26) and a stripper pin (27). One end of the elastic element (26) is connected to the stop plate (22), and the other end of the elastic element (26) is connected to the stripper pin (27). The stripper pin (27) passes through the upper mold mounting groove (24) and abuts against the external workpiece to be processed.

5. The stainless steel camera decorative ring forming mold according to claim 3, characterized in that: A reset assembly (28) is provided between the upper clamping plate (21) and the stop plate (22). The reset assembly (28) includes a reset spring (29) and a guide post (30). The guide post (30) is installed on the upper mold base (19). The lower end of the guide post (30) passes through the upper pad (20), the upper clamping plate (21), the stop plate (22) and the stripper plate (23) in sequence. One end of the reset spring (29) is connected to the upper mold base (19), and the other end of the reset spring (29) is connected to the stop plate (22).

6. The stainless steel camera decorative ring forming mold according to claim 1, characterized in that: The lower mold mechanism (2) also includes a limiting block (31) disposed on the lower template (5), and the limiting block (31) is fixedly connected to the lower template (5) via fasteners.

7. A method for forming a stainless steel camera decorative ring, characterized in that, Using the stainless steel camera decorative ring forming mold according to any one of claims 1-6, the process includes the following steps: S1. Place the workpiece to be processed in the cavity. When the upper mold mechanism (1) moves downward to the stripper plate (23) and contacts the limiting block (31) of the lower mold mechanism (2), the workpiece to be processed is fixed and pre-pressed in the cavity to prevent deformation during the molding process. S2. As the upper die mechanism (1) continues to move downward to the lowest point of the punch press stroke, the insert (9) slides down with the upper clamping plate (21) to push the lower die core (6) on the lower template (5) from the side. The workpiece is constrained by the cavity and gradually becomes square. S3. When the upper die mechanism (1) moves upward to the highest point of the punching stroke, the stripper plate (23) leaves the limit block (31), and the stripper pin (27) pushes the product stuck in the cavity out of the cavity.

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