Notebook computer shell processing method

Abstract

The invention discloses a notebook computer shell processing method and relates to the technical field of notebook computer shells. The method comprises the following steps: S1, material selection: selecting a high-strength aluminum alloy plate; s2, material cutting is conducted, specifically, the high-strength aluminum alloy plate is cut into a primary blank according to the needed size and shape; s3, pressing a bending groove: pressing the bending groove at the joint between the bottom shell and the bending part; s4, primary bending: stopping applying pressure when a bending angle of 50-80 degrees is formed between the bottom shell and the bending part; s5, secondary bending: forming a 90-degree bending angle between the bottom shell and the bending part; s6, primary hemming: arranging a necking part at the top of the bending part, and stopping applying pressure when a hemming angle of 50-80 degrees is formed between the necking part and the bending part; s7, performing secondary hemming to form a 90-degree hemming angle between the necking part and the bending part; and S8, back extrusion is carried out, wherein a right-angle inner curled edge is formed between the inner side of the necking part and the bent part. The technical scheme has the advantages of strong supporting force, high structural strength, difficulty in deformation and easiness in surface treatment.

Description

Technical Field

[0001] The present invention relates to the technical field of notebook casings, and particularly relates to a processing method for notebook casings. Background Art

[0002] Due to the need to be carried around, thinning and weight reduction are an inevitable development trend in the industry for notebook computers. In terms of notebook casings, titanium casings and pure aluminum casings have emerged in the market. However, the pure aluminum casing has low market acceptance because its material support is insufficient and it is prone to deformation. The titanium casing cannot be oxidized and can only be surface sprayed, and its cost is extremely high.

[0003] Therefore, there is an urgent need in the market for a notebook casing that has strong support, is easy to surface treat, can achieve thinning and weight reduction, and has a low cost, as well as its corresponding processing method. High-strength aluminum alloy is the preferred material, but high-strength aluminum alloy is difficult to shape and has the phenomenon of shaking after upsetting, which has not been overcome and thus has not been widely used in the market. Summary of the Invention

[0004] The purpose of the present invention is to provide a processing method for notebook casings, which has the advantages of strong support, high structural strength, not easy to deform, and easy to surface treat, aiming at the defects and deficiencies of the prior art.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is: a processing method for notebook casings, including the following steps: S1. Material selection: Select a high-strength aluminum alloy plate, and the high-strength aluminum alloy plate is a 5-series aluminum alloy or a 6-series aluminum alloy; S2. Cutting: Cut the high-strength aluminum alloy plate into a blank according to the required size and shape. The blank includes: a bottom shell and a bending part arranged on the periphery of the bottom shell; S3. Pressing a bending groove: Press a bending groove at the connection between the bottom shell and the bending part; S4. First bending: Apply a bending pressure to the bending part and stop applying the pressure when a bending angle between 50° and 80° is formed between the bottom shell and the bending part; S5. Second bending: Apply a bending pressure to the bending part again to form a 90° bending angle between the bottom shell and the bending part; S6. First curling: A necking part is provided at the top of the bending part. Apply a curling pressure to the necking part and stop applying the pressure when a curling angle between 50° and 80° is formed between the necking part and the bending part; S7. Second curling: Apply a curling pressure to the necking part again to form a 90° curling angle between the necking part and the bending part; S8. Back extrusion: Use the inner mold to push outward toward the necking part to form a right-angled inward curling edge between the inner side of the necking part and the bending part.

[0006] The present invention is further provided that the high-strength aluminum alloy plate is 5059 aluminum alloy.

[0007] The present invention is further provided that in the step S3, a convex rib mold is used to press a bending groove at the connection between the bottom shell and the bending part.

[0008] The present invention is further provided that in the step S3, the depth of the bending groove is 0.04 - 0.10 mm.

[0009] The present invention is further provided that in the step S4, a bending pressure is applied to the bending part, and the pressure application is stopped when a bending angle of 70 degrees is formed between the bottom shell and the bending part.

[0010] The present invention is further provided that in the step S6, a curling pressure is applied to the necking part, and the pressure application is stopped when a bending angle of 70 degrees is formed between the necking part and the bending part.

[0011] The present invention is further provided that it further includes: S9. CNC processing: Use a probe for positioning to perform CNC processing on the outer shell.

[0012] After adopting the above technical solutions, the beneficial effects of the present invention are as follows: In the present invention, the bending groove is located between the bottom shell and the bending part, providing a deformation area for the bending between the bending part and the bottom shell, enabling the bending part to perform bending deformation with the bending groove as the bending point during the bending process, which is more conducive to the shaping of the bending part to achieve a good bending processing effect and improve the qualified rate of the outer shell processing. At the same time, after the bending processing, the bending groove will be folded at the bending angle between the bending part and the bottom shell, avoiding affecting the strength at the bending groove and the flatness of the inner side of the outer shell, enabling a good transition between the bending part and the bottom shell to form a right-angled inner bending edge. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 is a schematic processing flow diagram of the present invention; Figure 2 is a schematic structural diagram of the present invention; Figure 3 It is a schematic structural diagram of another state of the present invention.

[0015] Explanation of reference numerals: 1, bottom shell; 2, bending part; 3, bending groove; 4, necking part; 5, right-angle inner bending edge; 6, right-angle inner curling edge. Specific embodiments

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] This specific embodiment is only an interpretation of the present invention and does not limit the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment that do not contribute to creation as needed, but as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

[0018] This embodiment relates to a method for processing a notebook shell, as Figures 1 - 3 shown, including the following steps: S1. Material selection: Select a high-strength aluminum alloy plate. The high-strength aluminum alloy plate is a 5-series aluminum alloy or a 6-series aluminum alloy material. Using the high-strength aluminum alloy material to make the notebook shell not only has sufficient supporting force and is not easily deformed, but also has the characteristics of light weight and easy surface treatment to meet the needs of consumers.

[0019] In this embodiment, the high-strength aluminum alloy plate is 5059 aluminum alloy. 5059 aluminum alloy is an aluminum alloy with high strength and good corrosion resistance. Using 5059 aluminum alloy as the material of the notebook shell can ensure the strength of the notebook shell.

[0020] S2. Cutting: Cut the high-strength aluminum alloy plate into a blank according to the required size and shape to meet the needs of the notebook shell and make a shell of corresponding size. Among them, the blank includes: a bottom shell 1 and a bending part 2 arranged on the periphery of the bottom shell 1; S3. Pressing the bending groove 3: Press out the bending groove 3 at the connection between the bottom shell 1 and the bending part 2; In this embodiment, a convex rib mold is used to press down at the connection between the bottom shell 1 and the bending part 2 to press out the bending groove 3, so as to quickly and accurately press out the bending groove 3 on the blank, providing a basis for the bending operation of the bending part 2 and ensuring a good bending effect. As a preferred solution, the depth of the bending groove 3 is 0.04 - 0.10 mm, which can meet the bending requirements of the bending part 2 and also prevent the shell from being too thin at the bending groove 3 and easily breaking, ensuring the yield rate of processing.

[0021] S4. First Bending: Apply a bending pressure to the bending part 2. Stop applying the pressure when the bending angle between the bottom shell 1 and the bending part 2 reaches between 50° and 80°, to avoid excessive first bending that may cause the disconnection between the bending part 2 and the bottom shell 1, resulting in a material breakage phenomenon. Specifically, in this embodiment, a mold is used to press down on the bending part 2, causing bending between the bottom shell 1 and the bending part 2. When the bending angle reaches 70°, the mold stops pressing down, completing the first bending.

[0022] S5. Second Bending: Apply a bending pressure to the bending part 2 again, so as to form a 90° bending angle between the bottom shell 1 and the bending part 2, achieving the final vertical bending effect and ensuring good processing effect of the outer shell. Specifically, the mold is used to press down on the bending part 2 for the second time, so that the bending angle between the bottom shell 1 and the bending part 2 reaches 90°. The mold stops pressing down, completing the second bending.

[0023] The bending groove 3 is located between the bottom shell 1 and the bending part 2, providing a deformation area for the bending between the bending part 2 and the bottom shell 1, enabling the bending part 2 to be bent and deformed with the bending groove 3 as the bending point during the bending process, which is more conducive to shaping the bending part 2, achieving a good bending processing effect and improving the yield rate of the outer shell processing. At the same time, after the bending processing, the bending groove 3 will be folded at the bending angle between the bending part 2 and the bottom shell 1, avoiding affecting the strength at the bending groove 3 and the flatness of the inner side of the outer shell, enabling a good transition between the bending part 2 and the bottom shell 1, forming a right-angled inner bending edge 5.

[0024] S6. First Crimping: A necking part 4 is provided at the top of the bending part 2, used for necking and crimping the top of the bending part 2. Crimping can effectively increase the support force of the outer shell and improve the strength of the outer shell. By applying a crimping pressure to the necking part 4, the necking part 4 is deformed and bent relative to the bending part 2. Stop applying the pressure when the crimping angle between the necking part 4 and the bending part 2 reaches between 50° and 80°; avoid excessive first crimping deformation between the necking part 4 and the bending part 2 that may cause material breakage, ensuring good processing of the outer shell. Specifically, in this embodiment, a mold is used to push the necking part 4 inward, causing the necking part 4 to be bent relative to the bending part 2. When the crimping angle reaches 70°, the mold stops pushing, completing the first crimping.

[0025] S7. Second Crimping: Apply a crimping pressure to the necking part 4 again, so as to form a 90° crimping angle between the necking part 4 and the bending part 2; achieving the final necking and crimping effect and ensuring good processing of the outer shell. Specifically, the mold is used to push the necking part 4 inward for the second time, so that the crimping angle between the necking part 4 and the bending part 2 reaches 90°. The mold stops pressing down, completing the second crimping. The formed necking and crimping can effectively increase the support force of the outer shell and improve the overall strength of the outer shell.

[0026] S8. Back extrusion: Use the inner mold to push outward between the necking part 4 and the bending part 2 to form a right-angled inner curl 6 between the inner side of the necking part 4 and the bending part 2. Improve the flatness inside the shell, so that a good transition is formed between the bending part 2 and the necking part 4. S9. CNC processing: Use a probe for positioning to perform CNC processing on the shell. The positioning accuracy of the probe for positioning is relatively high, and the processing accuracy of performing CNC processing on the shell using the probe for positioning is even higher. It can avoid local shell material being too thin due to inaccurate positioning, improve the yield rate of shell processing, and ensure the strength of the shell.

[0027] In the processing method of the shell, there is no need to perform a thickening process on the shell, so that the phenomenon of the shell shaking due to stress can be effectively avoided, and the structural strength of the shell can be ensured.

[0028] The above is only used to illustrate the technical solution of the present invention rather than to limit it. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solution of the present invention shall be covered by the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A method for processing a notebook shell, characterized in that, It includes the following steps: S1. Material selection: Select a high-strength aluminum alloy plate, and the high-strength aluminum alloy plate is a 5-series aluminum alloy or a 6-series aluminum alloy; S2. Blanking: Cut the high-strength aluminum alloy plate into a blank according to the required size and shape. The blank includes: a bottom shell (1) and a bending part (2) arranged on the periphery of the bottom shell (1); S3. Pressing the bending groove: Press a bending groove (3) at the connection between the bottom shell (1) and the bending part (2); S4. First bending: Apply a bending pressure to the bending part (2), and stop applying the pressure when a bending angle between 50° and 80° is formed between the bottom shell (1) and the bending part (2); S5. Second bending: Apply a bending pressure to the bending part (2) again to form a 90° bending angle between the bottom shell (1) and the bending part (2); S6. First curling: A necking part (4) is arranged at the top of the bending part (2). Apply a curling pressure to the necking part (4), and stop applying the pressure when a curling angle between 50° and 80° is formed between the necking part (4) and the bending part (2); S7. Second curling: Apply a curling pressure to the necking part (4) again to form a 90° curling angle between the necking part (4) and the bending part (2); S8. Back extrusion: Use an internal mold to push outward towards the necking part (4) to form a right-angle inner curling edge (6) between the inner side of the necking part (4) and the bending part (2).

2. The notebook shell processing method according to claim 1, characterized in that, The high-strength aluminum alloy plate is 5059 aluminum alloy.

3. The processing method of the notebook shell according to claim 1, characterized in that, In the step S3, a convex rib mold is used to press a bending groove (3) at the connection between the bottom shell (1) and the bending part (2).

4. The processing method of the notebook shell according to claim 1, characterized in that, In the step S3, the depth of the bending groove (3) is 0.04 - 0.10 mm.

5. The processing method of the notebook shell according to claim 1, wherein In the step S4, apply a bending pressure to the bending part (2), and stop applying the pressure when a 70° bending angle is formed between the bottom shell (1) and the bending part (2).

6. The processing method of the notebook shell according to claim 1, characterized in that, In the step S6, apply a curling pressure to the necking part (4), and stop applying the pressure when a 70° curling angle is formed between the necking part (4) and the bending part (2).

7. The processing method of the notebook shell according to claim 1, characterized in that It also includes: S9. CNC processing: Use a probe for positioning to perform CNC processing on the shell.

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