Stainless steel camera decoration ring forming die and forming method

Abstract

The invention relates to the technical field of camera manufacturing, and particularly discloses a stainless steel camera decoration ring forming die which comprises an upper die mechanism and a lower die mechanism, the lower die mechanism comprises a lower die base, a lower base plate, a lower die plate and a lower die core which are sequentially arranged, and a lower die mounting groove is formed in the lower die plate; the lower mold core is movably arranged on the lower mold plate through a lower mold mounting groove, the upper mold mechanism is provided with an upper mold core, and the upper mold core and the lower mold core are closed to form a mold cavity; a slotting tool is arranged on the upper die mechanism and abuts against the lower die core to drive the lower die core to move relative to the lower die, and the lower die core abuts against the workpiece to be machined in the stamping die cavity. The slotting tool is used for driving the lower die core to move, a square cavity is formed through precise die control, precise conversion from a round blank material to a square finished product is achieved, and the problems that redundant materials are deducted through multiple stations in traditional CNC production, the machining efficiency is low, the period is long, and the utilization rate is low are solved.

Description

Technical Field

[0001] The invention relates to the technical field of camera manufacturing, and in particular discloses a stainless steel camera decorative ring forming die and a forming method. Background Art

[0002] In recent years, with the rapid development of consumer electronic 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 consumers' product experience.

[0003] The existing production technology of stainless steel camera decorative rings mainly adopts full CNC processing technology, that is, stainless steel plates are used as raw materials, and CNC machine tools are used to gradually process and remove excess blanks at multiple processing stations to form the final square camera decorative ring. Although this process has achieved product forming to a certain extent, it has the following obvious defects and shortcomings: low processing efficiency and long cycle. The full CNC processing technology involves multiple processing stations, and each station gradually trims the raw materials. There are many processes and a long processing cycle. This traditional process is easy to form a bottleneck in mass production and cannot meet the market's requirements for efficient production; the utilization rate of raw materials is low. Since solid square stainless steel plates are used as raw materials, a large amount of excess blanks will be generated during the product forming process, resulting in serious waste of raw materials. Even after improving the CNC processing technology and optimizing the program sorting, although the material utilization rate has been improved to a certain extent, the overall effect is still difficult to meet the goal of reducing costs and increasing efficiency. Summary of the invention

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present 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-mentioned purpose, a stainless steel camera decorative ring forming mold of the present invention comprises an upper mold mechanism and a lower mold mechanism, wherein the lower mold mechanism comprises a lower mold seat, a lower pad, a lower mold plate and a lower mold core arranged in sequence, the lower mold plate is provided with a lower mold mounting groove, the lower mold core is movably arranged on the lower mold plate via the lower mold mounting groove, the upper mold mechanism is provided with an upper mold core, the upper mold core and the lower mold core are combined to form a mold cavity; the workpiece to be processed is placed in the mold cavity, the upper mold mechanism is provided with a plunger, the plunger contacts the lower mold core, drives the lower mold core to move relative to the lower mold, and the lower mold core cooperates with the upper mold core to stamp the workpiece to be processed in the mold cavity, so that the workpiece to be processed is processed into a product. The present invention utilizes a plunger to drive the lower mold core to move, and forms a square mold cavity through precision mold control, thereby realizing the precise conversion from a round rough material to a square finished product, which changes the problems of the traditional CNC production of multiple workstations for excess material deduction, low processing efficiency, long cycle and low utilization rate.

[0006] Furthermore, the lower mold core includes a first slider and a second slider. An arc-shaped inner concave surface is formed at one end of the first slider, and the arc-shaped inner concave surface contacts the workpiece to be processed. A first guide groove is provided at the other end of the first slider, and a first inclined surface is provided on the side wall of the first guide groove. The insert knife contacts and pushes the first inclined surface to drive the first slider to slide in the direction close to the workpiece to be processed; an arc-shaped outer convex surface is formed at one end of the second slider, and a second guide groove is provided at the other end of the second slider. A second inclined surface is provided on the side wall of the second guide groove. The insert knife contacts and pushes the second inclined surface to drive the second slider to slide in the direction away from the workpiece to be processed. The double slider structure can realize two-way regulation during the forming process: pushing on one side and pulling on the other side, so as to form an ideal cavity shape; the first slider is responsible for stamping the edge part of the square product, and the circular blank is gradually changed into a square through the inward pushing force. The second slider is responsible for stamping the four corners of the square product, and the square structure is more regular through the outward pulling force. The two-way movement of the slider ensures that the cavity is evenly stressed during the forming process, avoiding stress concentration and material rebound, thereby improving product precision and stability.

[0007] Furthermore, the first slider and the second slider are each provided with four groups, and the first slider and the second slider are arranged alternately in a ring shape. This arrangement ensures that the workpiece to be processed is subjected to uniform force in all directions, and improves the forming accuracy of the square structure. The four groups of first sliders mainly act on the edges of the square product to push the material inward for forming, and the four groups of second sliders mainly act on the corners of the square product to pull outward to ensure accurate forming of the four corners, which solves the problem of uneven stress concentration in the square forming process of the traditional one-way stamping die, and avoids the problem of inconsistent corner roundness that may be caused when using a single direction slider.

[0008] Furthermore, the upper mold core is provided with a limiting groove that matches the arc-shaped inner concave surface and the arc-shaped outer convex surface, and the limiting groove is used to prevent deformation during the forming process of the workpiece to be processed. During the stamping process, the limiting groove plays a role in accurately positioning and supporting the workpiece to be processed, ensuring that the material will not be excessively deformed or warped during the plastic deformation process, ensuring that the deformation is controlled and will 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 processing has the problem of large dimensional deviation of batch products, and after adopting this limiting groove structure, the size of each batch of finished products is more stable and the tolerance control is better; at the same time, the limiting groove can balance the distribution of punching force, avoid damage caused by excessive local force on the mold, increase the service life of the mold, and reduce production costs.

[0009] Furthermore, an inclined guide surface is provided at one end of the plunger close to the lower mold core, and the inclined guide surface presses against the first inclined surface and the second inclined surface respectively. When the plunger moves downward, its inclined guide surface first contacts the first inclined surface and the second inclined surface, and the first slider and the second slider in the lower mold core are driven respectively by the design of the inclined angle. The first slider moves closer to the workpiece to be processed due to the push of the plunger, forming a stamping of the square edge; the second slider moves outward under the action of the plunger to coordinately adjust the shape of the corner. By using the inclined guide surface, the plunger can more accurately transmit force to the two sliders of the lower mold core, realize two-way regulation, and ensure that all parts are evenly stressed during the molding process. The design of the inclined guide surface can effectively prevent the movement deviation of the lower mold core caused by uneven impact force transmission, thereby avoiding local overpressure or underpressure of the workpiece to be processed and ensuring molding accuracy.

[0010] Furthermore, the upper die mechanism also includes an upper die seat, an upper pad, an upper clamping plate, a stop plate and a stripping plate which are arranged in sequence. The upper die seat, the upper pad and the upper clamping plate are connected via fasteners. The stop plate and the stripping plate are slidably connected to the upper clamping plate via equal height screws. The insert knife is arranged on the upper clamping plate. The insert knife passes through the stop plate and the stripping plate in sequence to contact the lower die core. The stripping plate is provided with an upper die mounting groove, and the upper die core is placed in the upper die mounting groove. Each component adopts a modular design, which 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 have good adaptability, and the position and movement trajectory of each component can be flexibly adjusted according to specific process requirements. After the insert knife is fixed on the upper clamping plate, it passes through the stop plate and the stripping plate in sequence to evenly transfer the punching force 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, and effectively improves the forming accuracy.

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

[0012] Furthermore, a reset assembly is provided between the upper clamping plate and the stop plate, and the reset assembly includes a reset spring and a guide column. The guide column is installed on the upper die seat, and the lower end of the guide column passes through the upper pad, the upper clamping plate, the stop plate and the stripper plate in sequence. One end of the reset spring is connected to the upper die seat, and the other end of the reset spring is connected to the stop plate. After the stamping cycle is completed, when the upper die mechanism rises, the reset spring uses the guiding effect of the guide column to quickly and accurately reset the upper die components such as the stop plate to a predetermined initial position, so as to prepare for the next stamping. The reset assembly realizes the automatic return of the stop plate in the upper die mechanism, avoids the uncertainty caused by manual operation, and ensures that each component returns to the accurate position after each molding cycle. The through setting of the guide column ensures the relative position stability between the components of each layer of the upper die, so that the repeated positioning accuracy of each molding is higher, thereby improving the consistency of the product. The automatic reset function greatly shortens the mold cycle time, reduces manual interference, and improves production efficiency, which is suitable for large-scale continuous production.

[0013] Furthermore, the lower mold mechanism also includes a limit block arranged on the lower mold plate, and the limit block is fixedly connected to the lower mold plate via a fastener. The limit block provides a reliable physical constraint for the lower mold core, so that the force is evenly applied during the stamping process, ensuring that the dimensional accuracy and geometric shape of the workpiece after forming are more consistent. By setting the limit block, the lower mold core can be effectively prevented from uncontrolled movement due to excessive force, reducing the risk of excessive deformation or damage of the material. Since the limit block ensures the precise position of the lower mold core during the forming process, the scrap rate caused by mold movement deviation is reduced, thereby improving the overall production efficiency and consistency of product quality.

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

[0015] S1. Place the workpiece to be processed in the cavity. When the upper die mechanism moves downward until the stripper plate contacts the limit block of the lower die mechanism, the workpiece to be processed is fixedly pre-pressed in the cavity to prevent deformation during the molding process.

[0016] S2. When the upper die mechanism continues to move downward to the lowest point of the punch stroke, the inserter follows the upper clamping plate to slide down and push the lower die core on the lower template sideways, and the workpiece is constrained by the cavity and gradually becomes a square.

[0017] S3. When the upper die mechanism moves upward to the highest point of the punch stroke, the stripper plate leaves the limit block, and the stripper needle pushes the product stuck in the cavity out of the cavity.

[0018] Beneficial effects of the present invention: The present invention utilizes a slotting knife to drive the lower mold core to move, and forms a square cavity through precision mold control, thereby realizing accurate conversion from a round blank to a square finished product, thereby changing the problems of traditional CNC production of multiple stations for excess material removal, low processing efficiency, long cycle, and low utilization rate;

[0019] The double slider structure can realize two-way regulation during the forming process: pushing on one side and pulling on the other side, so as to form an ideal cavity shape; the first slider is responsible for stamping the edge of the square product, and the circular blank is gradually changed into a square through the inward pushing force, and the second slider is responsible for stamping the four corners of the square product, and the square structure is more regular through the outward pulling force. The two-way movement of the slider ensures that the cavity is evenly stressed during the forming process, avoiding stress concentration and material rebound, thereby improving product precision 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 have good adaptability, and the position and movement trajectory of each component can be flexibly adjusted according to specific process requirements. After the insert is fixed on the upper clamping plate, the punching force is evenly transmitted to the lower die core by passing through the stop plate and the stripper plate in sequence. 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a stainless steel camera decorative ring forming mold of the present invention;

[0022] Figure 2 It is an exploded schematic diagram of the upper mold mechanism of the present invention;

[0023] Figure 3 It is an exploded schematic diagram of the lower mold mechanism of the present invention;

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

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

[0026] Figure 6 for Figure 5 Schematic diagram of the cross section of AA;

[0027] Figure 7 for Figure 5 Schematic cross-section of the middle BB;

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

[0029] Fig. 9 It is a structural schematic diagram of a workpiece to be processed according to the present invention;

[0030] Fig.10 It is a structural schematic diagram of the product of the present invention.

[0031] Reference numerals include:

[0032] 1. Upper mold mechanism; 2. Lower mold mechanism; 3. Lower mold base; 4. Lower pad; 5. Lower mold plate; 6. Lower mold core; 7. Lower mold mounting groove; 8. Upper mold core; 9. Insert knife; 10. First slider; 11. Second slider; 12. Arc-shaped inner concave surface; 13. First guide groove; 14. First inclined surface; 15. Arc-shaped outer convex surface; 16. Second guide groove; 17. Second inclined surface; 18. Limiting groove; 19. Upper mold base; 20. Upper pad; 21. Upper clamping plate; 22. Stop plate; 23. Stripping plate; 24. Upper mold mounting groove; 25. Ejector assembly; 26. Elastic member; 27. Stripping needle; 28. Reset assembly; 29. ​​Reset spring; 30. Guide column; 31. Limiting block. DETAILED DESCRIPTION

[0033] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the specific implementation mode, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0034] See also Figures 1 to 10 As shown, a stainless steel camera decorative ring forming die of the present invention comprises an upper die mechanism 1 and a lower die mechanism 2, wherein the lower die mechanism 2 comprises a lower die seat 3, a lower pad 4, a lower mold plate 5 and a lower mold core 6 arranged in sequence, the lower mold plate 5 is provided with a lower mold mounting groove 7, the lower mold core 6 is movably arranged on the lower mold plate 5 via the lower mold mounting groove 7, the upper die mechanism 1 is provided with an upper mold core 8, the upper mold core 8 and the lower mold core 6 are combined to form a mold cavity; the workpiece to be processed is placed in the mold cavity, the upper die mechanism 1 is provided with a plunger 9, the plunger 9 abuts against the lower mold core 6, drives the lower mold core 6 to move relative to the lower die, and the lower mold core 6 cooperates with the upper mold core 8 to stamp the workpiece to be processed in the mold cavity, so that the workpiece to be processed is processed into a product. The present invention utilizes the plunger 9 to drive the lower mold core 6 to move, and forms a square mold cavity through precision mold control, realizing the precise conversion from a round rough material to a square finished product, changing the problems of the traditional CNC production multi-station for excess material deduction, low processing efficiency, long cycle and low utilization rate.

[0035] Specifically, the workpiece to be processed is a circular blank material of an annular steel pipe that is lathe-processed. Compared with traditional CNC production, the deduction of redundant blank materials is reduced, the CNC processing amount is reduced, the processing cycle is shortened, and the production efficiency is improved.

[0036] The lower mold core 6 includes a first slider 10 and a second slider 11. An arcuate inner concave surface 12 is formed at one end of the first slider 10, and the arcuate inner concave surface 12 contacts the workpiece to be processed. A first guide groove 13 is provided at the other end of the first slider 10, and a first inclined surface 14 is provided on the side wall of the first guide groove 13. The inserting knife 9 contacts and pushes the first inclined surface 14 to drive the first slider 10 to slide in a direction close to the workpiece to be processed; an arcuate outer convex surface 15 is formed at one end of the second slider 11, and a second guide groove 16 is provided at the other end of the second slider 11. A second inclined surface 17 is provided on the side wall of the second guide groove 16. The inserting knife 9 contacts and pushes the second inclined surface 17 to drive the second slider 11 to slide in a direction away from the workpiece to be processed. The double slider structure can realize two-way regulation during the forming process: pushing on one side and pulling on the other side, so as to form an ideal cavity shape; the first slider 10 is responsible for stamping the edge part of the square product, and the circular blank is gradually changed into a square through the inward pushing force. The second slider 11 is responsible for stamping the four corners of the square product, and the square structure is more regular through the outward pulling force. The two-way movement of the slider ensures that the cavity is evenly stressed during the forming process, avoiding stress concentration and material rebound, thereby improving product precision and stability.

[0037] There are four groups of first sliders 10 and second sliders 11, and the first sliders 10 and second sliders 11 are arranged alternately in a ring. This arrangement ensures that the workpiece is subjected to uniform force in all directions, and improves the forming accuracy of the square structure. The four groups of first sliders 10 mainly act on the edges of the square product to push the material inward for forming, and the four groups of second sliders 11 mainly act on the corners of the square product to pull outward to ensure accurate forming of the four corners, which solves the problem of uneven stress concentration in the square forming process of traditional one-way stamping dies and avoids the problem of inconsistent corner roundness that may be caused when using a single direction slider.

[0038] The upper mold core 8 is provided with a limiting groove 18 that matches the arc-shaped inner concave surface 12 and the arc-shaped outer convex surface 15. The limiting groove 18 is used to prevent deformation during the forming process of the workpiece to be processed. During the stamping process, the limiting groove 18 plays a role in accurately positioning and supporting the workpiece to be processed, ensuring that the material will not be excessively deformed or warped during the plastic deformation process, ensuring that the deformation is controlled and will 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 processing has the problem of large dimensional deviation of batch products. After adopting the limiting groove 18 structure, the size of each batch of finished products is more stable and the tolerance control is better; at the same time, the limiting groove 18 can balance the distribution of the punching force, avoid damage caused by excessive local force on the mold, improve the service life of the mold, and reduce production costs.

[0039] The end of the insert 9 close to the lower mold core 6 is provided with an inclined guide surface, and the inclined guide surface presses against the first inclined surface 14 and the second inclined surface 17 respectively. When the insert 9 moves downward, its inclined guide surface first contacts the first inclined surface 14 and the second inclined surface 17, and the first slider 10 and the second slider 11 in the lower mold core 6 are driven respectively by the design of the inclined angle. The first slider 10 moves closer to the workpiece to be processed due to the push of the insert 9, forming a stamping of the square edge; the second slider 11 moves outward under the action of the insert 9 to coordinately adjust the shape of the corner. By using the inclined guide surface, the insert 9 can more accurately transmit force to the two sliders of the lower mold core 6, realize two-way regulation, and ensure that all parts are evenly stressed during the molding process. The design of the inclined guide surface can effectively prevent the movement deviation of the lower mold core 6 caused by uneven impact force transmission, thereby avoiding local overpressure or underpressure of the workpiece to be processed 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 stripping plate 23 which are arranged in sequence. The upper mold base 19, the upper pad 20 and the upper clamping plate 21 are connected via fasteners. The stop plate 22 and the stripping plate 23 are slidably connected to the upper clamping plate 21 via equal height screws. The insert knife 9 is arranged on the upper clamping plate 21. The insert knife 9 passes through the stop plate 22 and the stripping plate 23 in sequence to abut against the lower mold core 6. The stripping 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 mold mechanism 1 have good adaptability, and the position and movement trajectory of each component can be flexibly adjusted according to specific process requirements. After the insert knife 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 transfer the punching force to the lower mold core 6. This design ensures the force coordination between the upper mold mechanism 1 and the lower mold mechanism 2 during the stamping process, and effectively improves the forming accuracy.

[0041] The upper mold core 8 is provided with an ejector assembly 25, which includes an elastic member 26 and a stripper pin 27. One end of the elastic member 26 is connected to the stop plate 22, and the other end of the elastic member 26 is connected to the stripper pin 27. The stripper pin 27 passes through the upper mold mounting groove 24 to contact the external workpiece to be processed. 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 member 26, pushing the product in the mold cavity out, thereby realizing automatic ejection of the molded product. The ejector assembly 25 enables the product to be automatically demolded after molding, reducing manual intervention and subsequent manual processing steps. The elastic member 26 can effectively buffer the impact force during the ejection process and reduce mechanical damage to the product and the mold. The stripper pin 27 passes through the upper mold mounting groove 24 and contacts the external workpiece to be processed, ensuring that the ejection force and position are accurate, and ensuring that the product is not displaced or damaged during the demolding process. The automatic ejection function accelerates the molding cycle and shortens the time from molding to demoulding of the product, which is conducive to mass production. At the same time, it reduces the uneven force input that may be caused by manual operation, thereby extending the 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 column 30. The guide column 30 is installed on the upper mold base 19. The lower end of the guide column 30 passes through the upper pad 20, the upper clamping plate 21, the stop plate 22 and the stripping 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 is completed, when the upper mold mechanism 1 rises, the reset spring 29, with the help of the guiding effect of the guide column 30, quickly and accurately resets the upper mold components such as the stop plate 22 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 mold mechanism 1, avoiding the uncertainty caused by manual operation, and ensuring that all components return to the correct position after each molding cycle. The through setting of the guide column 30 ensures the relative position stability between the components of each layer of the upper mold, so that the repeated positioning accuracy of each molding is higher, thereby improving the consistency of the product. The automatic reset function greatly shortens the mold cycle time, reduces manual interference, and improves production efficiency. It is suitable for large-scale continuous production.

[0043] The lower mold mechanism 2 also includes a limit block 31 disposed on the lower mold plate 5, and the limit block 31 is fixedly connected to the lower mold plate 5 via a fastener. The limit block 31 provides a reliable physical constraint for the lower mold core 6, so that the force is evenly applied during the stamping process, ensuring that the dimensional accuracy and geometric shape of the workpiece after forming are more consistent. By setting the limit block 31, the lower mold core 6 can be effectively prevented from uncontrolled movement due to excessive force, reducing the risk of excessive deformation or damage of the material. Since the limit block 31 ensures the precise position of the lower mold core 6 during the forming process, the scrap rate caused by mold movement deviation is reduced, thereby improving the overall production efficiency and consistency of product quality.

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

[0045] S1, placing the workpiece to be processed in the cavity, when the upper mold mechanism 1 moves downward until the stripper plate 23 contacts the limit block 31 of the lower mold mechanism 2, the workpiece to be processed is fixedly pre-pressed in the cavity to prevent deformation during the molding process;

[0046] S2, when the upper die mechanism 1 continues to move downward to the lowest point of the punch stroke, the inserting knife 9 follows the upper clamping plate 21 to slide down, and pushes the lower die core 6 on the lower die plate 5 sideways, and the workpiece is constrained by the cavity and gradually becomes a square;

[0047] S3. When the upper die mechanism 1 moves upward to the highest point of the punch stroke, the stripper plate 23 leaves the limit block 31, and the stripper needle 27 pushes the product stuck in the cavity out of the cavity.

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

[0049] Specifically, step S2 specifically includes: when the upper die mechanism 1 continues to move downward to the lowest point of the punch stroke, the upper die seat 19, the upper pad 20 and the upper clamping plate 21 continue to move downward, the reset spring 29 begins to compress, the insert knife 9 slides down following the upper clamping plate 21, and the inclined guide surfaces of the insert knife 9 respectively contact the first inclined surface 14 of the first slider 10 and the second inclined surface 17 of the second slider 11, the first slider 10 slides in the direction close to the workpiece to be processed, the arc-shaped inner concave surface 12 squeezes the workpiece to be processed to form the edge of the square product inward, the second slider 11 slides in the direction away from the workpiece to be processed, and the arc-shaped outer convex surface 15 squeezes the workpiece to be processed to form the corner of the square product outward, and the workpiece to be processed is constrained by the cavity and gradually becomes a square product.

[0050] Specifically, the step S3 specifically includes: the upper die base 19, the upper pad 20 and the upper clamping plate 21 move upward, the reset spring 29 releases elastic potential energy, the stop plate 22 and the stripping plate 23 are stationary relative to the lower die mechanism 2, and the insert 9 follows the upper clamping plate 21 away from the lower die mechanism 2; during the upper die mechanism 1 moving upward to the highest point of the punch stroke, the upper die base 19, the upper pad 20 and the upper clamping plate 21 continue to move upward, the upper clamping plate 21 drives the stop plate 22 and the stripping plate 23 to move upward, the elastic member 26 releases elastic potential energy, and when the stripping plate 23 leaves the limit block 31, the stripping needle 27 pushes the product stuck in the cavity out of the cavity.

[0051] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A stainless steel camera decorative ring forming mold, characterized in that: The invention comprises an upper die mechanism (1) and a lower die mechanism (2), wherein the lower die mechanism (2) comprises a lower die seat (3), a lower pad (4), a lower die plate (5) and a lower die core (6) which are arranged in sequence, the lower die plate (5) being provided with a lower die mounting groove (7), the lower die core (6) being movably arranged on the lower die plate (5) via the lower die mounting groove (7), the upper die mechanism (1) being provided with an upper die core (8), the upper die core (8) and the lower die core (6) being combined to form a die cavity; a workpiece to be processed is placed in the die cavity, the upper die mechanism (1) being provided with a plunger (9), the plunger (9) being in contact with the lower die core (6), driving the lower die core (6) to move relative to the lower die, the lower die core (6) and the upper die core (8) cooperating to punch the workpiece to be processed in the die cavity, so that the workpiece to be processed is processed into a product.

2. A stainless steel camera decorative ring forming mold according to claim 1, characterized in that: The lower mold core (6) comprises a first slider (10) and a second slider (11); an arcuate inner concave surface (12) is formed at one end of the first slider (10), the arcuate inner concave surface (12) contacts the workpiece to be processed; a first guide groove (13) is provided at the other end of the first slider (10), a first inclined surface (14) is provided on the side wall of the first guide groove (13); a plunger (9) contacts and pushes the first inclined surface (14) to drive the first slider (10) to slide in a direction close to the workpiece to be processed; an arcuate outer convex surface (15) is formed at one end of the second slider (11), a second guide groove (16) is provided at the other end of the second slider (11), a second inclined surface (17) is provided on the side wall of the second guide groove (16), the plunger (9) contacts and pushes the second inclined surface (17) to drive the second slider (11) to slide in a direction away from the workpiece to be processed.

3. A stainless steel camera decorative ring forming mold according to claim 2, characterized in that: The first sliding blocks (10) and the second sliding blocks (11) are each provided with four groups, and the first sliding blocks (10) and the second sliding blocks (11) are arranged alternately in a ring shape.

4. A stainless steel camera decorative ring forming mold according to claim 2, characterized in that: The upper mold core (8) is provided with a limiting groove (18) that matches the arc-shaped inner concave surface (12) and the arc-shaped outer convex surface (15), and the limiting groove (18) is used to prevent deformation of the workpiece during the molding process.

5. The stainless steel camera decorative ring forming mold according to claim 2, characterized in that: An end of the inserting knife (9) close to the lower mold core (6) is provided with an inclined guide surface, and the inclined guide surface presses against the first inclined surface (14) and the second inclined surface (17) respectively.

6. The stainless steel camera decorative ring forming mold according to claim 1, characterized in that: The upper die mechanism (1) further comprises an upper die seat (19), an upper pad (20), an upper clamping plate (21), a stop plate (22) and a stripping plate (23) which are arranged in sequence. The upper die seat (19), the upper pad (20) and the upper clamping plate (21) are connected via fasteners. The stop plate (22) and the stripping plate (23) are slidably connected to the upper clamping plate (21) via equal height screws. The inserting knife (9) is arranged on the upper clamping plate (21). The inserting knife (9) passes through the stop plate (22) and the stripping plate (23) in sequence to contact the lower die core (6). The stripping plate (23) is provided with an upper die mounting groove (24), and the upper die core (8) is placed in the upper die mounting groove (24).

7. A stainless steel camera decorative ring forming mold according to claim 6, characterized in that: The upper mold core (8) is provided with an ejector assembly (25), which includes an elastic member (26) and an ejector pin (27). One end of the elastic member (26) is connected to the stop plate (22), and the other end of the elastic member (26) is connected to the ejector pin (27). The ejector pin (27) passes through the upper mold mounting groove (24) to contact the external workpiece to be processed.

8. The stainless steel camera decorative ring forming mold according to claim 6, characterized in that: A reset assembly (28) is provided between the upper clamping plate (21) and the stop plate (22), and the reset assembly (28) includes a reset spring (29) and a guide column (30). The guide column (30) is installed on the upper die base (19), and the lower end of the guide column (30) passes through the upper pad (20), the upper clamping plate (21), the stop plate (22) and the stripping plate (23) in sequence. One end of the reset spring (29) is connected to the upper die base (19), and the other end of the reset spring (29) is connected to the stop plate (22).

9. The stainless steel camera decorative ring forming mold according to claim 1, characterized in that: The lower mold mechanism (2) further comprises a limit block (31) arranged on the lower mold plate (5), and the limit block (31) is fixedly connected to the lower mold plate (5) via a fastener.

10. A method for forming a stainless steel camera decorative ring, characterized in that: The steps include: S1, placing the workpiece to be processed in the mold cavity, when the upper mold mechanism (1) moves downward until the stripper plate (23) contacts the limit block (31) of the lower mold mechanism (2), the workpiece to be processed is fixedly pre-pressed in the mold cavity to prevent deformation during the molding process; S2, when the upper die mechanism (1) continues to move downward to the lowest point of the punch stroke, the inserting knife (9) slides down along with the upper clamping plate (21) to push the lower die core (6) on the lower die plate (5) sideways, and the workpiece is constrained by the cavity and gradually becomes a square; S3. When the upper die mechanism (1) moves upward to the highest point of the punch stroke, the stripper plate (23) leaves the limit block (31), and the stripper needle (27) pushes the product stuck in the cavity out of the cavity.

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