Vertical-row stamping die for producing VC sheet lower cover

Abstract

The utility model relates to the field of stamping dies, in particular to a vertical stamping die for producing VC sheet lower covers, which comprises a lower die holder and an upper die holder, and a reinforcing rib punching station, a guide hole punching station, a convex hull punching station, a convex hull finishing station, an edge cutting station, a burr beating station and a workpiece discharging station are sequentially arranged in the lower die holder. The lower die set is provided with a machining channel used for a metal sheet base material to pass through, the machining channel sequentially penetrates through the reinforcing rib punching station, the guide hole punching station, the convex hull punching station, the convex hull finishing station, the edge cutting station, the burr beating station and the workpiece discharging station, and the metal sheet base material used for machining and production enters the machining channel of the lower die set through the feeding mechanism. A reinforcing rib punching station, a guide hole punching station, a convex hull punching station, a convex hull finishing station, an edge cutting station, a burr beating station and a piece discharging station are integrated in one stamping die, continuous stamping machining of a metal sheet base material is achieved, the production efficiency is greatly improved, and the time for multiple times of clamping and transferring is shortened.

Description

Technical Field

[0001] This utility model relates to the field of stamping dies, and in particular to vertical stamping dies for producing the lower cover of VC tablets. Background Technology

[0002] Stamping dies are a commonly used process equipment in industrial production. They utilize the internal cavity and punch of the die to process metal or non-metal materials into parts of the desired shape through pressure. Stamping dies have advantages such as high production efficiency, high material utilization, and high machining accuracy, and are widely used in industries such as automobiles, electronics, and home appliances. With the advancement of technology and industrial development, the requirements for stamping dies are becoming increasingly stringent. They not only need to meet basic processing requirements but also need to possess characteristics such as high precision, high efficiency, and high stability.

[0003] A vapor chamber (VC) is an important component for heat dissipation, widely used in mobile phones, computers, servers, graphics cards, etc., to dissipate heat. A VC vapor chamber typically consists of an upper and lower cover, both made of metal sheets, forming a vacuum cavity, usually made of copper. Its working principle is based on the gas-liquid phase change principle: when heat is applied to one side of the cavity, the working liquid inside absorbs heat and evaporates rapidly, expanding in volume quickly, and the gaseous cooling medium rapidly fills the entire cavity. The vapor moves to a cooler area under a small pressure difference, where it condenses into liquid and releases heat. Subsequently, the condensed coolant flows back to the heating area through microstructured capillary channels, completing the cycle. This process repeats continuously within the cavity, achieving efficient heat conduction and uniform distribution.

[0004] The existing VC chip lower cover stamping dies have the following defects:

[0005] 1) Traditional stamping dies often use multiple independent workstations to complete different processes, which not only increases production costs but also reduces production efficiency;

[0006] 2) During the stamping process, burrs often form on the edge of the VC sheet underside after trimming due to friction between the die and the material, as well as wear on the die cutting edge. These burrs not only affect the appearance quality of the product, but may also rub against the die cutting edge in subsequent processes, leading to accelerated wear of the die cutting edge and even damage to the die. In addition, the processed product may also suffer scratches or damage during use.

[0007] 3) Existing stamping dies are prone to causing deformation of the metal sheet substrate during processing. When the metal sheet is subjected to external force, it undergoes elastic deformation, which disappears when the external force is unloaded or released. However, due to the change in the stress state of the metal sheet during the forming process, the stress distribution inside the material becomes uneven. When the external force is unloaded or released, the metal sheet will experience stress release, resulting in springback deformation, which affects the quality and performance of the product. Utility Model Content

[0008] In order to overcome the shortcomings of existing technical solutions, this utility model provides a vertical stamping die for producing the lower cover of VC sheet, which can effectively solve the technical problems of needing multiple dies for stamping, burrs on the product after trimming, and easy springback deformation of the metal sheet substrate after stamping.

[0009] The technical solution adopted by this utility model to solve its technical problem is:

[0010] A vertical stamping die for producing the lower cover of a VC sheet includes a lower die base and an upper die base. A lower die assembly is provided at the end of the lower die base near the upper die base, and an upper die assembly corresponding to the lower die assembly is provided at the end of the upper die base near the lower die base. The lower die assembly is provided with a reinforcing rib station, a guide hole punching station, a convex embossing station, a convex embossing station, an edge trimming station, a deburring station, and a part ejection station in sequence. The lower die assembly is provided with a processing channel for the metal sheet substrate to pass through. The processing channel passes through the reinforcing rib station, the guide hole punching station, the convex embossing station, the convex embossing station, the edge trimming station, the deburring station, and the part ejection station in sequence. The metal sheet substrate to be processed enters the processing channel of the lower die assembly through a feeding mechanism.

[0011] In the punching guide hole station, the upper die assembly includes a punching upper die and a punching bottom die is set on the lower die base. After the lower die base and the upper die base are closed, the punching upper die and the punching bottom die punch guide positioning holes on the metal sheet substrate. Each station is equipped with a guide rod corresponding to the guide positioning hole. After the lower die base and the upper die base are closed, the guide rod passes through the guide positioning hole.

[0012] In the reinforcing rib station, the upper mold assembly includes a rib upper mold and the lower mold base includes a rib bottom mold. After the lower mold base and the upper mold base are closed, the rib upper mold and the rib bottom mold punch out reinforcing ribs on the metal sheet substrate. The reinforcing ribs are located on the outside of the lower cover of the product VC sheet. After the lower cover of the product VC sheet is separated from the metal sheet substrate, the reinforcing ribs remain on the metal sheet substrate.

[0013] In the deburring station, the upper mold assembly includes a deburring upper mold and a deburring bottom mold is provided on the lower mold base. After the lower mold base and the upper mold base are closed, the deburring upper mold and the deburring bottom mold shape the edges cut off in the trimming station.

[0014] Furthermore, in the edge trimming station, the upper mold assembly includes an upper edge trimming mold, and the lower mold base includes a lower edge trimming mold. After the lower mold base and the upper mold base are closed, the upper edge trimming mold and the lower edge trimming mold cut out the outline of the VC sheet lower cover on the metal sheet substrate. A connecting point is left between the outline of the VC sheet lower cover and the metal sheet substrate.

[0015] Furthermore, the connecting point is connected to the metal substrate on the long side of the VC sheet lower cover. In the parting station, the upper mold assembly includes a double-sided punching upper mold, and the lower mold base includes a double-sided punching bottom mold. After the lower mold base and the upper mold base are closed, the double-sided punching upper mold and the double-sided punching bottom mold punch the connecting point at one end of the two VC sheet lower covers arranged in front and behind on the metal substrate. After punching, the VC sheet lower cover far from the cutting edge station in the parting station will be completely separated from the metal substrate and ejected.

[0016] Furthermore, the cutting station is equipped with a primary cutting area and a secondary cutting area. The primary cutting area and the secondary cutting area respectively punch the contours of different positions of the VC sheet under cover, and the contours punched by the primary cutting area and the secondary cutting area form a connecting point.

[0017] Furthermore, from the punching guide hole station to the edge trimming station, there are gaps between each station.

[0018] Furthermore, the upper mold assembly also includes an upper mold for embossing and an upper mold for packaging, and a lower mold base is provided with a lower mold for embossing and a lower mold for packaging. After the mold is closed, the upper mold for embossing and the lower mold for embossing punch out the embossing of the VC sheet lower cover and the water inlet on the metal sheet substrate. The upper mold for packaging and the lower mold for packaging press and shape the embossing of the VC sheet lower cover and the water inlet.

[0019] Furthermore, the lower module also includes a guide plate and a floating block. The guide plates are symmetrically arranged on the lower mold base, and a processing channel is formed between the two symmetrically arranged guide plates. The floating block is disposed in the processing channel.

[0020] Compared with the prior art, the beneficial effects of this utility model are:

[0021] 1) The station for adding reinforcing ribs, punching guide holes, adding embossing, finishing embossing, trimming, burring, and ejecting parts is integrated into a single stamping die, enabling continuous stamping of metal sheet substrates. This greatly improves production efficiency, simplifies the production process, and reduces the time spent on multiple clamping and transfer operations, thereby saving production time and reducing production costs. At the same time, since all stations are completed in one die, the consistency and precision of the processing are ensured, improving the quality and stability of the products.

[0022] 2) A deburring station is set up. After the edge is cut, the edge contour of the VC sheet lower cover is deburred again by the upper and lower deburring molds to remove the burrs on the edge of the VC sheet lower cover, making the edge of the VC sheet lower cover smoother and flatter. The edge of the VC sheet lower cover can also be trimmed to a certain extent, thereby improving the product's precision and dimensional stability, improving the accuracy of processing, and ensuring the continuity and stability of subsequent processing stations.

[0023] 3) A reinforcing rib station is provided. By punching reinforcing ribs on the edge of the metal sheet substrate, the structural strength of the metal sheet substrate is effectively enhanced, preventing deformation of the metal sheet substrate due to stress release during the stamping process. The reinforcing ribs are used to strengthen the edge part of the metal sheet substrate during stamping, thereby improving its resistance to deformation. After stamping, the reinforcing ribs remain on the metal sheet substrate and do not affect the structural design of the VC sheet lower cover of the product. At the same time, after burr removal, the stress concentration phenomenon at the edge of the workpiece is also alleviated. Attached Figure Description

[0024] Figure 1 This is the front view of the present invention;

[0025] Figure 2 This is a schematic diagram of each workstation in this utility model;

[0026] Figure 3 This is a schematic diagram of the VC sheet lower cover after stamping in this utility model;

[0027] Figure 4 This is a schematic diagram of the guide positioning holes and reinforcing ribs on the metal sheet substrate in this utility model;

[0028] Labels in the diagram: 1-Lower die base, 2-Upper die base, 3-Lower die assembly, 301-Guide plate, 302-Floating block, 4-Upper die assembly, 401-Upper die with raised rib, 402-Upper die with punching hole, 403-Upper die with raised bump, 404-Upper die with full bump, 405-Upper die with trimming edge, 406-Upper die with burr removal edge, 407-Upper die with double-sided punching edge, 5-Station for adding reinforcing ribs, 6-Station for punching guide holes, 7- 8-Convexing station, 9-Edge trimming station, 901-First trimming area, 902-Second trimming area, 10-Deburring station, 11-Outgoing station, 12-Interval space, 13-VC sheet lower cover, 1301-Water inlet, 1302-Convexing, 14-Metal sheet substrate, 1401-Reinforcing rib, 1402-Guide positioning hole, 1403-Material connection point. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] The following is combined Figures 1-4 The present invention provides a detailed description of the vertical stamping die for producing the lower cover of VC tablets:

[0031] A vertical stamping die for producing the lower cover of a VC sheet includes a lower die base 1 and an upper die base 2. A lower die assembly 3 is provided at one end of the lower die base 1 near the upper die base 2, and an upper die assembly 4 corresponding to the lower die assembly 3 is provided at one end of the upper die base 2 near the lower die base 1. The lower die assembly 3 is provided with a reinforcing rib station 5, a guide hole punching station 6, a convex embossing station 7, a convex embossing station 8, an edge trimming station 9, a deburring station 10, and a part ejection station 11 in sequence. The lower die assembly 3 is provided with a processing channel for the metal sheet substrate 14 to pass through. The processing channel passes through the reinforcing rib punching station 5, the guide hole punching station 6, the convex embossing station 7, the convex embossing station 8, the edge trimming station 9, the deburring station 10, and the part ejection station 11 in sequence. The metal sheet substrate 14 used for processing enters the processing channel of the lower die assembly 3 through a feeding mechanism. From the guide hole punching station 6 to the edge trimming station 9, there is a space 12 between each station. By integrating the reinforcing rib station 5, the guide hole punching station 6, the embossing station 7, the embossing station 8, the edge trimming station 9, the burr removal station 10, and the part ejection station 11 into a single stamping die, continuous stamping processing of the metal sheet substrate 14 is achieved. This greatly improves production efficiency, simplifies the production process, and reduces the time spent on multiple clamping and transfer operations, thereby saving production time and reducing production costs. At the same time, since all stations are completed in one die, the consistency and precision of the processing are also guaranteed, improving the quality and stability of the product.

[0032] In the punching guide hole station 6, the upper die group 4 includes a punching upper die 402 and a punching bottom die is provided on the lower die base 1. After the lower die base 1 and the upper die base 2 are closed, the punching upper die 402 and the punching bottom die punch guide positioning holes 1402 on the metal sheet substrate 14. Each station is provided with a guide rod corresponding to the guide positioning hole 1402. After the lower die base 1 and the upper die base 2 are closed, the guide rod passes through the guide positioning hole 1402.

[0033] In the reinforcing rib station 5, the upper mold assembly 4 includes a rib upper mold 401 and the lower mold base 1 includes a rib bottom mold. After the lower mold base 1 and the upper mold base 2 are closed, the rib upper mold 401 and the rib bottom mold punch out reinforcing ribs 1401 on the metal sheet substrate 14. The reinforcing ribs 1401 are located on the outside of the product VC sheet lower cover 13. After the product VC sheet lower cover 13 is separated from the metal sheet substrate 14, the reinforcing ribs 1401 remain on the metal sheet substrate 14. A reinforcing rib station 5 is provided, in which reinforcing ribs 1401 are punched out on the edge of the metal sheet substrate 14, which effectively enhances the structural strength of the metal sheet substrate 14 and prevents it from deforming due to stress release during the stamping process. The reinforcing ribs 1401 are used to strengthen the edge part of the metal sheet substrate 14 during stamping, thereby improving its resistance to deformation. After stamping, the reinforcing ribs 1401 remain on the metal sheet substrate 14 and do not affect the structural design of the VC sheet lower cover 13. At the same time, after the burrs are removed, the stress concentration phenomenon at the edge of the workpiece is also alleviated.

[0034] In the deburring station 10, the upper mold assembly 4 includes a deburring upper mold 406 and a deburring bottom mold on the lower mold base 1. After the lower mold base 1 and the upper mold base 2 are closed, the deburring upper mold 406 and the deburring bottom mold shape the edges cut off in the trimming station 9. After trimming, the edge contour of the VC sheet lower cover 13 is again deburred by the deburring upper mold 406 and the deburring bottom mold to remove the burrs on the edge of the VC sheet lower cover 13, making the edge of the VC sheet lower cover 13 smoother and flatter. It can also trim the edge of the VC sheet lower cover 13 to a certain extent, thereby improving the product's precision and dimensional stability, improving the accuracy of processing, and ensuring the continuity and stability of subsequent processing stations.

[0035] In the trimming station 9, the upper mold assembly 4 includes a trimming upper mold 405, and the lower mold base 1 includes a trimming bottom mold. After the lower mold base 1 and the upper mold base 2 are closed, the trimming upper mold 405 and the trimming bottom mold cut out the outline of the VC sheet lower cover 13 on the metal sheet substrate 14. The trimming station 9 is provided with a primary trimming area 901 and a secondary trimming area 902. The primary trimming area 901 and the secondary trimming area 902 punch out the outline of the VC sheet lower cover 13 at different positions respectively. The outlines punched by the primary trimming area 901 and the secondary trimming area 902 form a connecting point 1403.

[0036] The connecting point 1403 is connected to the metal substrate 14 on the long side of the VC sheet lower cover 13. In the parting station 11, the upper mold group 4 includes a double-sided punching upper mold 407, and the lower mold base 1 includes a double-sided punching bottom mold. After the lower mold base 1 and the upper mold base 2 are closed, the double-sided punching upper mold 407 and the double-sided punching bottom mold punch the connecting point 1403 at one adjacent end of the two VC sheet lower covers 13 arranged in front and behind on the metal substrate 14. After punching, the VC sheet lower cover 13 far away from the cutting edge station 9 on the parting station 11 will be completely separated from the metal substrate 14 and ejected. It can realize the punching of the connecting point 1403 of the two VC sheet lower covers 13 arranged in front and behind in one punching. The connecting points 1403 on both sides of the VC sheet lower cover 13 are punched through the same set of molds, reducing the overall volume of the stamping mold.

[0037] The upper die group 4 also includes an upper die for punching embossing 403 and an upper die for packaging 404. The lower die base 1 is provided with a lower die for punching embossing embossing embossing embossing 1302 and a water inlet 1301 for the VC sheet lower cover 13. The upper die for packaging embossing 404 and the lower die for packaging embossing embossing 1302 and water inlet 1301 for the VC sheet lower cover 13 are punched and shaped by the upper die for punching embossing 1302 and water inlet 1301 for the VC sheet lower cover 13. The lower die group 3 also includes a guide plate 301 and a floating block 302. The guide plates 301 are symmetrically arranged on the lower die base 1, and a processing channel is formed between the two symmetrically arranged guide plates 301. The floating block 302 is set in the processing channel, which helps to guide the metal sheet substrate 14 smoothly through each station during the stamping process, while reducing the deformation and damage of the material during the stamping process. The combined use of the guide plate 301 and the float block 302 can further improve the accuracy and stability of stamping, ensuring the quality and performance of the final product.

[0038] Stamping process: The long strip of metal substrate 14 is inserted into the processing channel through the feeding mechanism. At the reinforcing rib station 5, three reinforcing ribs 1401 are punched out of the metal substrate 14. The three reinforcing ribs 1401 are located on both sides of the VC sheet lower cover 13 near the guide plate 301 and on one side near the punching guide hole station 6. After completion, the feeding mechanism pushes the metal substrate 14 forward. At the punching guide hole station 6, guide positioning holes 1402 are punched out of the edge of the metal substrate 14. At the same time, the reinforcing rib station 5 punches out three more reinforcing ribs 1401 in the metal substrate 14 behind it, so that there are reinforcing ribs 1401 in all four directions around the VC sheet lower cover 13. After completion, it enters the first interval space 12, waiting to punch out the guide positioning holes 1402 in the next forming area before entering the embossing station 7. At the embossing station 7, the metal substrate 14 is punched out with embossing 1302 and water injection port 1301. After the embossing is completed, it enters the second interval 12 to wait, and then enters the embossing station 8. The embossing station 8 shapes the embossing 1302 and water inlet 1301 on the metal sheet substrate 14 to ensure that the embossing 1302 and water inlet 1301 of each VC sheet lower cover 13 have the same shape. After waiting for one mold closing in the third interval 12, it enters the trimming station 9. In the trimming station 9, the outline of the VC sheet lower cover 13 is punched out and separated from the metal sheet substrate 14 through one trimming and two trimming. However, there is still a connecting point 1403 between the VC sheet lower cover 13 and the metal sheet substrate 14. Finally, it is punched twice more in the parting station 11. The first punch breaks the connecting point 1403 on the side of the VC sheet lower cover 13 away from the trimming station 9. The second punch breaks the connecting point 1403 on the side of the VC sheet lower cover 13 close to the trimming station 9, so that the VC sheet lower cover 13 is completely separated from the metal sheet substrate 14 and the part is ejected.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A vertical row stamping die for producing a VC tablet lower cover, comprising a lower die base and an upper die base, the lower die base being provided with a lower die set at one end close to the upper die base, and the upper die base being provided with an upper die set corresponding to the lower die set at one end close to the lower die base, characterized in that: The lower die set is sequentially provided with a reinforcing rib punching station, a guide hole punching station, a convex bump punching station, a convex bump trimming station, an edge cutting station, a burr trimming station and a product discharging station. A processing channel for the metal sheet substrate is arranged on the lower die set. The processing channel sequentially passes through the reinforcing rib punching station, the guide hole punching station, the convex bump punching station, the convex bump trimming station, the edge cutting station, the burr trimming station and the product discharging station. The metal sheet substrate for processing and production is fed into the processing channel of the lower die set through the feeding mechanism. In the guide hole punching station, the upper die set comprises a punching upper die, and the lower die seat is provided with a punching lower die. When the lower die seat and the upper die seat are closed, the punching upper die and the punching lower die punch the guide positioning hole on the metal sheet substrate. Each station is provided with a guide rod corresponding to the guide positioning hole. When the lower die seat and the upper die seat are closed, the guide rod passes through the guide positioning hole. In the reinforcing rib punching station, the upper die set comprises a rib upper die, and the lower die seat comprises a rib lower die. When the lower die seat and the upper die seat are closed, the rib upper die and the rib lower die punch the reinforcing rib on the metal sheet substrate. The reinforcing rib is located on the outer side of the product VC sheet lower cover. After the product VC sheet lower cover is separated from the metal sheet substrate, the reinforcing rib remains on the metal sheet substrate. In the burr trimming station, the upper die set comprises a burr trimming upper die, and the lower die seat is provided with a burr trimming lower die. When the lower die seat and the upper die seat are closed, the burr trimming upper die and the burr trimming lower die trim the edge cut in the edge cutting station.

2. The vertical press die for producing a VC sub-cover according to claim 1, wherein: In the edge cutting station, the upper die set comprises an edge cutting upper die, and the lower die seat comprises an edge cutting lower die. When the lower die seat and the upper die seat are closed, the edge cutting upper die and the edge cutting lower die cut the profile of the VC sheet lower cover on the metal sheet substrate. The profile of the VC sheet lower cover and the metal sheet substrate are connected by a material connection point.

3. The vertical press die for producing the VC sub-cover according to claim 2, characterized in that: The material connection point is connected to the metal sheet substrate on the long side of the VC sheet lower cover. In the product discharging station, the upper die set comprises a double-side punching upper die, and the lower die seat comprises a double-side punching lower die. When the lower die seat and the upper die seat are closed, the double-side punching upper die and the double-side punching lower die punch the material connection point at the adjacent end of the two VC sheet lower covers arranged in front of and behind each other on the metal sheet substrate. After punching, the VC sheet lower cover away from the edge cutting station in the product discharging station is completely separated from the metal sheet substrate.

4. The vertical press die for producing the VC sub-cover according to claim 2, wherein: The edge cutting station is provided with a primary edge cutting area and a secondary edge cutting area. The primary edge cutting area and the secondary edge cutting area punch the profiles at different positions of the VC sheet lower cover. The profiles punched by the primary edge cutting area and the secondary edge cutting area form the material connection point.

5. The vertical press die for producing the VC sub-cover according to any one of claims 1 to 3, wherein: From the guide hole punching station to the edge cutting station, a spacing gap is arranged between each station.

6. The vertical press die for producing the VC sub-cover according to any one of claims 1 to 3, wherein: The upper die set further comprises a convex bump punching upper die and a convex bump trimming upper die. The lower die seat is provided with a convex bump punching lower die and a convex bump trimming lower die. When the upper die set and the lower die seat are closed, the convex bump punching upper die and the convex bump punching lower die punch the convex bump and the water inlet of the VC sheet lower cover on the metal sheet substrate. The convex bump trimming upper die and the convex bump trimming lower die trim and shape the convex bump and the water inlet of the VC sheet lower cover.

7. The vertical press die for producing the VC sub-cover according to any one of claims 1 to 3, wherein: The lower die set further comprises a material guide plate and a material floating block. The material guide plate is symmetrically arranged on the lower die seat. The two symmetrically arranged material guide plates form a processing channel. The material floating block is arranged in the processing channel.

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