Stamping die for computer mainframe shell

Abstract

The utility model discloses a kind of stamping die for computer mainframe shell, it includes: forging press, the main ejector rod bottom end of forging press is fixedly connected with upper die, the bottom of upper die is equipped with material stripping mechanism, lower die is erected with the lower side of upper die, the bottom of lower die is equipped with material lifting cylinder, by special upper die and lower die cooperation forging press is used to the mainframe shell with forging forming, simultaneously, 1 out 2 stamping forming operation is carried out, wherein stamping forming can better utilize material and reduce the generation of waste, while stamping forming material has plastic deformation, its internal organization is more compact, material strength, hardness and toughness are higher, part life is longer, and the forming procedure of two pieces of one forging is less, production cycle is shorter, can more quickly realize batch production, and reduce overall process, reduce labor cost, equipment cost and material cost.

Description

Technical Field

[0001] This utility model relates to the field of aluminum alloy casting technology, and in particular to a stamping die for a computer host casing. Background Technology

[0002] A computer case generally includes an outer shell, a bracket, and various switches and indicator lights on the front panel. The outer shell mainly serves to protect the internal components. Currently, most computer cases are manufactured using extrusion and CNC machining processes.

[0003] However, the above manufacturing process has low material utilization, long production cycle, high production cost, and the resulting host casing has low density and low protective strength, which cannot meet the production needs of large-scale high-quality computer host casings. Utility Model Content

[0004] The purpose of this utility model is to provide a stamping die for computer host casing. It adopts forging and is designed with a 1-out-2 forging method, which combines simulation and actual production experience. This method has higher production efficiency, relatively higher material utilization, and thus lower cost. In addition, the performance of the formed product is better.

[0005] To achieve the above objectives, a stamping die for a computer host casing is provided, comprising: a forging press; an upper die fixedly connected to the bottom end of the main ejector rod of the forging press; a stripping mechanism mounted at the bottom of the upper die; a lower die mounted directly below the upper die; and a ejector cylinder mounted at the bottom of the lower die. The forging press, in conjunction with the specially designed upper and lower dies, forges and forms the host casing, simultaneously performing a 1-to-2 stamping operation. This stamping process better utilizes materials and reduces waste. Furthermore, the stamped material undergoes plastic deformation, resulting in a denser internal structure, higher material strength, hardness, and toughness, and a longer part lifespan. The fewer forming steps and shorter production cycle of forging two parts at once allow for faster mass production, while also reducing the overall process and lowering labor, equipment, and material costs.

[0006] According to the aforementioned stamping die for a computer host casing, the upper die comprises a moving die base, an upper backing plate, several punches, several first side guide plates, and several guide pillars. The upper backing plate is fixedly fitted to the top of the moving die base, the punches are symmetrically fitted and fixed to the bottom of the moving die base, the first side guide plates are rectangularly arranged and fixed around the bottom of the fixed die base, and the guide pillars are symmetrically fixed to the bottom periphery of the moving die base in a cross shape. Simulation based on a computer host casing demonstrates a dual-punch design for more efficient stamping processing.

[0007] According to the aforementioned stamping die for a computer host casing, the lower die is composed of a fixed die base, a lower backing plate, several cavities, a lower ejector block, a second side guide plate, guide sleeves, and ejector pins. The lower backing plate is fixedly fitted to the bottom of the fixed die base. The cavities are symmetrically arranged on the top of the fixed die base, and the cavities and the punches above them are aligned on the same central axis. The lower ejector blocks are all located at the inner bottom of the cavities and slide vertically with the fixed die base. The second side guide plate is rectangularly arranged and fixedly surrounding the top of the moving die base. The guide sleeves are symmetrically cross-shaped and fixed to the top periphery of the fixed die base. This design ensures stable die closing while enabling rapid material removal.

[0008] According to the aforementioned stamping die for a computer host casing, the stripping mechanism comprises a stripping plate and several nitrogen springs. The nitrogen springs are rectangular, encircling and fixedly connected to the bottom of the moving die base. The stripping plate slides vertically against the bottom of the moving die base and is fixed to the bottom output end of the nitrogen springs. This mechanism enables the rapid downward stripping of the formed material stuck to the punch.

[0009] According to the aforementioned stamping die for a computer host casing, the upper die, lower die, and stripping mechanism are all fixedly connected to adjacent structures using pins and screws. This stable assembly and fixation of the various structures ensures the integrated stamping operation of the upper and lower die components.

[0010] According to the aforementioned stamping die for a computer host casing, the guide pillars are all inserted downwards into the inner side of the guide sleeve and slide vertically therewith. The first side guide plate and the second side guide plate are respectively embedded in the inner walls of the fixed mold base and the moving mold base and slide vertically therewith. This ensures a tight and accurate connection between the upper and lower molds during mold closing, avoiding any deviations.

[0011] According to the aforementioned stamping die for a computer host casing, the stripper plate is made of cemented carbide. This ensures that the stripper plate maintains extremely high hardness and toughness.

[0012] According to the aforementioned stamping die for a computer host casing, all ejector pins are vertically fixed at the bottom center of the lower ejector block, and their bottom ends are coaxially fixed with the output end of the ejector cylinder. The outer sides of the ejector pins slide vertically with the fixed mold base and the lower pad. This, in conjunction with the ejector cylinder, quickly pushes the molded material upwards from the cavity to remove the part.

[0013] The above-mentioned solution has the following beneficial effects:

[0014] In this invention, a forging press is used to forge the main body shell using a specially designed upper and lower die, simultaneously performing a 1-to-2 stamping process. This stamping process allows for better material utilization and reduces waste generation. Furthermore, the stamped material undergoes plastic deformation, resulting in a denser internal structure, higher material strength, hardness, and toughness, and a longer part lifespan. The process of forging two parts at once involves fewer steps and a shorter production cycle, enabling faster mass production. It also reduces the overall process and lowers labor, equipment, and material costs.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a schematic diagram showing the separation of the upper and lower dies in a stamping die for a computer host casing according to this utility model;

[0018] Figure 2 This is a schematic diagram of the upper die in a stamping mold for a computer host casing according to the present invention;

[0019] Figure 3 This is a schematic diagram of the structure of the lower die in a stamping mold for a computer host casing according to this utility model;

[0020] Figure 4 This is a schematic diagram of the stripping mechanism in a stamping die for a computer host casing according to this utility model.

[0021] Legend:

[0022] 1. Upper mold; 2. Lower mold; 3. Stripping mechanism; 4. Pin; 5. Screw;

[0023] 11. Moving mold base; 12. Upper backing plate; 13. Punch; 14. First side guide plate; 15. Guide post;

[0024] 21. Fixed mold base; 22. Lower backing plate; 23. Cavity; 24. Lower ejector block; 25. Second side guide plate; 26. Guide sleeve; 27. Ejector pin;

[0025] 31. Stripper plate; 32. Nitrogen spring; Detailed Implementation

[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0027] Reference Figure 1-4 This utility model provides a stamping die for a computer host casing, including: a forging press, an upper die 1 fixedly connected to the bottom end of the main ejector rod 27 of the forging press, a stripping mechanism 3 assembled at the bottom of the upper die 1, a lower die 2 mounted directly below the upper die 1, and a ejector cylinder assembled at the bottom of the lower die 2. The upper die 1, lower die 2 and stripping mechanism 3 are fixedly connected to each other and adjacent structures by means of pins 4 and screws 5. The die is formed by forging. Based on simulation and actual production experience, a 1-out-2 forging method is designed, which has higher production efficiency, relatively higher material utilization rate, and thus lower cost. In addition, the performance of the formed product is better.

[0028] The upper mold 1 is composed of a moving mold base 11, an upper backing plate 12, several punches 13, several first side guide plates 14, and several guide pillars 15. The upper backing plate 12 is fixed to the top of the moving mold base 11. The punches 13 are symmetrically fitted and fixed to the bottom of the moving mold base 11. The first side guide plates 14 are rectangularly arranged and fixed around the bottom of the fixed mold base 21. The guide pillars 15 are cross-symmetrically fixed to the bottom periphery of the moving mold base 11. The lower mold 2 is composed of a fixed mold base 21, a lower backing plate 22, several cavities 23, a lower ejector block 24, second side guide plates 25, guide sleeves 26, and... The ejector pin 27 is composed of a lower pad 22 that is attached to and fixed to the bottom of the fixed mold base 21. The cavity 23 is symmetrically arranged on the top of the fixed mold base 21. The cavity 23 and the punch 13 above it are both on the same central axis. The second side guide plate 25 is rectangularly fixed around the top of the moving mold base 11. The guide sleeve 26 is cross-symmetrically fitted and fixed to the top periphery of the fixed mold base 21. The forming tonnage is confirmed according to the simulation results. The forging forming is determined by combining the raw material properties, simulation results and forming method. The mold is designed and both are made to carry out stable stamping operations.

[0029] The lower ejector blocks 24 are all located at the bottom of the inner side of the cavity 23 and slide vertically with the fixed mold base 21. The ejector rods 27 are all vertically fixed at the bottom center of the lower ejector blocks 24 and their bottom ends are coaxially fixed with the output end of the ejector cylinder. The outer side of the ejector rods 27 slides vertically with the fixed mold base 21 and the lower pad 22, which can quickly eject the molded material from the cavity and remove the part.

[0030] The stripping mechanism 3 is composed of a stripping plate 31 and several nitrogen springs 32. The nitrogen springs 32 are rectangular and embedded in the bottom of the moving mold base 11 and are fixedly connected to it. The stripping plate 31 slides up and down to fit the bottom of the moving mold base 11 and is fixed to the bottom output end of the nitrogen springs 32. The stripping plate 31 is made of hard alloy material and can quickly peel the molded material stuck on the punch 13 downward.

[0031] The guide pillars 15 are all inserted downward into the inner side of the guide sleeve 26 and slide up and down with it. The first side guide plate 14 and the second side guide plate 25 are embedded in the inner wall of the fixed mold base 21 and the moving mold base 11 respectively and slide up and down with it to ensure accurate and stable mold closing.

[0032] Working Principle: In this utility model, a simulation is performed based on the computer host casing. The forming tonnage is determined based on the simulation results. Combining the raw material properties, simulation results, and forming method, the forging forming is determined, and the mold design is carried out. To further improve production efficiency and reduce costs, a one-out-two forging method is adopted. The mold is mainly divided into an upper mold 1 structure and a lower mold 2 structure. The upper and lower molds 2 are correspondingly assembled on the forging press. The material is placed in the cavity 23 of the lower mold 2. The main top cylinder of the forging press applies pressure to push the upper mold 1 down. Under the action of pressure, the material is formed in the cavity 23 of the lower mold 2. After the material is formed, the upper mold 1 is lifted, and the top cylinder pushes the top rod 27 to drive the formed material to rise. Then the formed material is manually removed. If the formed material is stuck on the punch 13, when the upper mold 1 is raised, the stripper plate 31 is pushed down by the pressure of the nitrogen spring 32, peeling the formed material off the punch 13.

[0033] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A stamping die for a computer host casing, comprising: A forging press, characterized in that an upper die (1) is fixedly connected to the bottom end of the main push rod (27) of the forging press, a stripping mechanism (3) is assembled at the bottom of the upper die (1), a lower die (2) is mounted directly below the upper die (1), and a top material cylinder is assembled at the bottom of the lower die (2).

2. The stamping die for a computer host casing according to claim 1, characterized in that, The upper mold (1) is composed of a moving mold base (11), an upper pad (12), several punches (13), several first side guide plates (14), and several guide posts (15). The upper pad (12) is attached and fixed to the top of the moving mold base (11). The punches (13) are symmetrically fitted and fixed to the bottom of the moving mold base (11). The first side guide plates (14) are rectangular and fixed around the bottom of the fixed mold base (21). The guide posts (15) are cross-symmetrically fixed to the bottom periphery of the moving mold base (11).

3. The stamping die for a computer host casing according to claim 2, characterized in that, The lower mold (2) is composed of a fixed mold base (21), a lower pad (22), several cavities (23), a lower ejector block (24), a second side guide plate (25), a guide sleeve (26), and an ejector rod (27). The lower pad (22) is attached to the bottom of the fixed mold base (21). The cavities (23) are symmetrically arranged on the top of the fixed mold base (21). The cavities (23) and the punch (13) above them are on the same central axis. The lower ejector blocks (24) are all located on the inner bottom of the cavities (23) and slide vertically with the fixed mold base (21). The second side guide plate (25) is rectangular and fixed around the top of the moving mold base (11). The guide sleeve (26) is cross-shaped and symmetrically fitted and fixed to the top periphery of the fixed mold base (21).

4. The stamping die for a computer host casing according to claim 2, characterized in that, The stripping mechanism (3) is composed of a stripping plate (31) and several nitrogen springs (32). The nitrogen springs (32) are rectangular and embedded around the bottom of the moving mold base (11) and fixedly connected thereto. The stripping plate (31) slides up and down to fit the bottom of the moving mold base (11) and is fixed to the bottom output end of the nitrogen springs (32).

5. The stamping die for a computer host casing according to claim 1, characterized in that, The upper mold (1), lower mold (2) and stripping mechanism (3) are all fixedly connected to each other with adjacent structures by means of pins (4) and screws (5).

6. The stamping die for a computer host casing according to claim 3, characterized in that, The guide posts (15) are all inserted downward into the inner side of the guide sleeve (26) and slide up and down with it. The first side guide plate (14) and the second side guide plate (25) are embedded in the inner walls of the fixed mold base (21) and the moving mold base (11) respectively and slide up and down with them.

7. A stamping die for a computer host casing according to claim 4, characterized in that, The stripper plate (31) is made of hard alloy material.

8. The stamping die for a computer host casing according to claim 3, characterized in that, The push rods (27) are all vertically fixed at the bottom center of the lower push block (24) and their bottom ends are coaxially fixed with the output end of the push cylinder. The outer side of the push rods (27) slides up and down with the fixed mold base (21) and the lower pad (22).

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