CN107666805B

CN107666805B - Shell manufacturing method

Info

Publication number: CN107666805B
Application number: CN201710932037.1A
Authority: CN
Inventors: 唐义梅
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-09-30
Filing date: 2017-09-30
Publication date: 2019-12-31
Anticipated expiration: 2037-09-30
Also published as: CN107666805A

Abstract

The invention provides a shell manufacturing method. The manufacturing method of the shell comprises the following steps: providing a first shell base body, wherein the first shell base body comprises a lug and a shell body, the lug is convexly arranged on the shell body, and the lug is provided with a camera hole; determining the center of the camera hole as a first reference center; determining the center of the bump as a second reference center; obtaining a third reference center according to the first reference center and the second reference center, wherein the third reference center is located in a preset radiation range taking the midpoint of a connecting line of the first reference center and the second reference center as a center; and forming a limiting step on the shell body by taking the third reference center as a processing reference, wherein the limiting step is positioned on the periphery of the camera hole. The shell manufacturing method prevents the size deviation of the edges of the two sides of the processed convex block provided with the camera hole from being large and prevents the camera from being eccentric on the shell from being large.

Description

Shell manufacturing method

Technical Field

The invention relates to the field of electronic equipment, in particular to a shell manufacturing method.

Background

Mobile devices such as cell phones typically include components such as a housing. The housing is usually made by providing a plate (e.g., aluminum) with a uniform thickness, and then forging the plate to form the housing. Set up the lug that protrudes the casing body on the casing usually, be provided with the camera hole on the lug, the camera hole is used for revealing camera portion to shoot the picture when the camera is shot. The step of processing the bump on the shell body and the step of processing the camera hole are usually finished at different clamping positions, and the processing reference is uniform. Therefore, the size deviation of the edges at two sides of the processed bump is large, or the eccentricity of the camera after assembly is large, so that the yield of the shell can be reduced by the existing shell manufacturing method.

Disclosure of Invention

The invention provides a shell manufacturing method, which comprises the following steps:

providing a first shell base body, wherein the first shell base body comprises a lug and a shell body, the lug is convexly arranged on the shell body, and the lug is provided with a camera hole;

determining the center of the camera hole as a first reference center;

determining the center of the bump as a second reference center;

obtaining a third reference center according to the first reference center and the second reference center, wherein the third reference center is located in a preset radiation range taking the midpoint of a connecting line of the first reference center and the second reference center as a center;

and forming a limiting step on the shell body by taking the third reference center as a processing reference, wherein the limiting step is positioned on the periphery of the camera hole.

Compared with the prior art, the shell manufacturing method provided by the invention has the advantages that the center of the camera hole is determined to be the first reference center, the center of the bump is determined to be the second reference center, the third reference center is obtained according to the first reference center and the second reference center, and the third reference center is positioned in the preset range with the middle point of the connecting line of the first reference center and the second reference center as the center, so that when the edges on the two sides of the bump are machined by the third reference center, the situation that the size deviation of the machined edges on the two sides of the bump is large or the eccentricity of the camera assembled on the shell through the limiting step is large is prevented.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic flow chart illustrating a method for manufacturing a housing according to a preferred embodiment of the invention.

Fig. 2 is a side view of a first housing base 200 according to an embodiment of the present invention.

Fig. 3 is a schematic view of a first reference center, a second reference center and a third reference center in a housing manufacturing method according to an embodiment of the invention

Fig. 4 is a schematic cross-sectional view illustrating a limiting step manufactured by the method for manufacturing a housing according to an embodiment of the present invention.

Fig. 5 is a flowchart of the step S100 according to a preferred embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a plate in a method for manufacturing a housing according to a preferred embodiment of the invention.

Fig. 7 is a schematic view of a plate processed by a forging die in the method for manufacturing a housing according to a preferred embodiment of the invention.

Fig. 8 is a schematic diagram of a first forging die in the method for manufacturing a housing according to a preferred embodiment of the invention.

Fig. 9 is a schematic diagram of a second forging die in the method for manufacturing a housing according to a preferred embodiment of the invention.

Fig. 10 is a schematic diagram of a mold clamping of a forging mold in a method for manufacturing a housing according to a preferred embodiment of the invention.

Fig. 11 is a schematic structural diagram of a first housing base formed by forging in the housing manufacturing method of the present invention.

Fig. 12 is a flowchart of the step S150 according to a preferred embodiment of the present invention.

Fig. 13 is a flowchart of step S150 according to another preferred embodiment of the present invention.

Fig. 14 is a flowchart of step S160 according to a preferred embodiment of the present invention.

Fig. 15 is a flowchart illustrating the steps S210-I included in the step S200 according to a preferred embodiment of the present invention.

FIG. 16 is a flowchart of steps S210-I according to a preferred embodiment of the present invention.

Fig. 17 is a flowchart of the step S200 according to a preferred embodiment of the present invention.

Fig. 18 is a flowchart of the step S300 according to a preferred embodiment of the present invention.

Fig. 19 is a flowchart illustrating the step S310 according to a preferred embodiment of the present invention.

Fig. 20 is a schematic structural view of a housing forming an inner cavity, a camera hole, and an antenna seam.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "thickness" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, and do not imply or indicate that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for manufacturing a housing according to a preferred embodiment of the invention. The housing 500 (see also fig. 20) is formed by machining the metal plate 100. The outer surface of the housing 500 is formed by a plurality of curved surfaces, so that the housing has a smooth appearance, and the user experience is enhanced. It is understood that the housing 500 is applied to a mobile terminal, which may be a mobile phone, a tablet computer, a notebook computer, or the like. In this embodiment, the housing 500 is a rear cover of a mobile phone, please refer to fig. 20. The method for manufacturing the shell includes, but is not limited to, step S100, step S200, step S300, step S400 and step S500.

Step S100, providing a first housing base 200, where the first housing base 200 includes a bump 210 and a housing body 270, the bump 210 is convexly disposed on the housing body 270, and the bump 210 is provided with a camera hole 211. Referring to fig. 2, fig. 2 is a side view of a first housing base 200 according to an embodiment of the invention. The first case base 200 further includes a first curved surface 230, a second curved surface 240 disposed opposite to the first curved surface 230, and a flash edge 250 between the first curved surface 230 and the second curved surface 240. The first housing 200 further includes a first side 210a and a second side 210b, which are oppositely disposed, and the first side 210a is opposite to the second side 210 b.

In step S200, the center of the camera hole 211 is determined as a first reference center O1.

In step S300, the center of the bump 210 is determined as a second reference center O2.

Step S400, obtaining a third reference center O3 according to the first reference center O1 and the second reference center O2, where the third reference center O3 is located within a preset radiation range centered on a midpoint of a connection line between the first reference center O1 and the second reference center O2. Referring to fig. 3, fig. 3 is a schematic view of a first reference center, a second reference center and a third reference center in a method for manufacturing a housing according to an embodiment of the invention.

Step S500, with the third reference center O3 as a processing reference, a limiting step 271 is formed on the housing body 270, and the limiting step 271 is located at the periphery of the camera hole 211. Referring to fig. 4, fig. 4 is a schematic cross-sectional view of a housing manufactured by the method for manufacturing a housing according to an embodiment of the invention after a limiting step is manufactured. Fig. 4 can be taken along the line I-I in fig. 3. The fact that the limiting step 271 is located at the periphery of the camera hole 211 means that the plane of the camera hole 211 away from the housing body 270 is used as a reference plane, and the projection of the limiting step 271 on the reference plane is located at the periphery of the camera hole 211. In order to prevent the large size deviation of the sides of the bump 210 after the sides of the bump 210 are machined, or the eccentricity of the camera group assembled on the housing by the limiting step 271 from being large, the radiation range is located between the first reference center O1 and the second reference center O2. Preferably, the third reference center O3 is located at the midpoint of the connection between the first reference center O1 and the second reference center O2, so as to further reduce the size deviation of the sides of the bump when the sides are machined, or the eccentricity of the camera when the camera is assembled on the housing through the limiting step 271.

Compared with the prior art, the method for manufacturing the housing of the invention determines that the center of the camera hole 211 is the first reference center O1, determines that the center of the bump 210 is the second reference center O2, and obtains the third reference center O3 according to the first reference center O1 and the second reference center O2, and the third reference center O3 is located within a preset range centered on the midpoint of the connecting line of the first reference center O1 and the second reference center O2, so that when the third reference center O3 is used for processing the edges at the two sides of the bump 210, the size deviation of the processed edges at the two sides of the bump 210 is prevented from being large, or the eccentricity of the camera assembled on the housing through the limiting step 271 is prevented from being large.

In one embodiment, the step S100 includes, but is not limited to, the steps S110, S120, S130, and S140. Referring to fig. 5, fig. 5 is a schematic flowchart of the step S100 according to a preferred embodiment of the invention.

In step S110, the plate 100 is provided. Referring to fig. 6, fig. 6 is a schematic structural diagram of a plate in a method for manufacturing a housing according to a preferred embodiment of the invention. The plate 100 includes a first surface 100b and a second surface 100a disposed opposite to each other. The plate member 100 is preferably a rectangular parallelepiped or an approximately rectangular parallelepiped. The plate 100 is made of metal, such as aluminum alloy. The first surface 100b and the second surface 100a are rectangular surfaces. The plate member 100 may be cut from a larger metal plate. The metal plate is subjected to a cutting process to obtain a plurality of plate members 100. Before the plate 100 is processed, the first surface 100b and the second surface 100a of the plate 100 need to be cleaned to remove dust on the first surface 100b and the second surface 100 a.

Between step S110 and step S120, the step S100 includes, but is not limited to, the following steps.

Step a: burrs are removed from the periphery of the plate member 100. The method for removing the burrs on the periphery of the plate 100 can be implemented by grinding the periphery of the plate 100, so that the plate is tidy, and unbalanced stress on the plate 100 due to the burrs in the processing process of the plate 100 is avoided. The burrs on the periphery of the plate 100 are removed, so that the plate 100 is tidy, the deformation of the plate 100 in the subsequent processing is balanced, and the yield of the finally formed shell is improved.

And b, heating the plate 100. The plate member 100 is placed in a heating apparatus such that the temperature of the plate member 100 is raised to a preset value. The intermolecular stress of the plate 100 is reduced after heating, so that the deformation stress of the plate 100 is reduced, the plate 100 is deformed uniformly during subsequent processing, and the yield of the finally formed shell is improved.

Step S120, providing a forging die 30, where the forging die includes a first forging die 31 and a second forging die 32, and the first forging die 31 includes a boss, where the boss is used to form the bump 210.

Step S130, placing the plate 100 into the first forging die 31 or the second forging die 32.

Step S140, the first forging die and the second forging die move relatively to press the plate 100, so as to obtain the first housing base 200 including the bump 210.

Referring to fig. 7 to 11, fig. 7 is a schematic view illustrating a plate processed by a forging die in a method for manufacturing a housing according to a preferred embodiment of the invention; fig. 8 is a schematic diagram illustrating a first forging die in the method for manufacturing a housing according to a preferred embodiment of the present invention; fig. 9 is a schematic diagram illustrating a second forging die in the method for manufacturing a housing according to a preferred embodiment of the present invention; FIG. 10 is a schematic diagram of a mold assembly of a forging mold for a method of manufacturing a housing according to a preferred embodiment of the invention; fig. 11 is a schematic structural diagram of a first housing base formed by forging in the housing manufacturing method of the present invention. The first forging die 31 includes a first cavity 312, the first cavity 312 is used for accommodating the plate 100, the first cavity 312 is a concave structure, and the periphery of the first cavity 312 is a circular arc.

In the present embodiment, the first forging die 31 is fixed to a machine tool, and the second forging die 32 is slidably connected to the machine tool and is slidable with respect to the first forging die 31. The sliding direction of the second forging die 32 is a vertical direction. The second forging die 32 presses the first forging die 31 to realize the pressing of the first forging die 31 and the second forging die 32 on the plate 100, so that the plate 100 is deformed, and the processing of the plate 100 is completed.

The first forging die 31 further includes a first parting surface 311 and a first cavity 312 opened to the first parting surface 311. The second forging die 32 includes a second parting surface 321 and a second cavity 322 opened on the second parting surface 321. The second parting plane 321 is opposite to the first parting plane 311. The inner side wall of the first cavity 312 and the inner side wall of the second cavity 322 respectively apply pressure against two opposite surfaces of the plate 100. The first parting surface 311 is a flat surface, and the first parting surface 311 is vertically arranged in a normal direction, so that when the first forging die 31 and the second forging die 32 are extruded, the first parting surface 311 and the second parting surface 321 are not easy to slide relatively. The second parting plane 321 is parallel to the first parting plane 311. The first cavity 312 includes a first molding surface 313 intersecting the first parting surface 311. The molding surface 313 is a curved surface. The first forging die 31 applies a pressing action to the entire first surface 100b of the plate 100 at the first molding surface 313, so that the first surface 100b of the plate 100 is deformed by a force, so that the plate 100 is molded into a desired shape at the first surface 100 b. The second cavity 322 includes a second molding surface 323 intersecting the second parting surface 321, and the second molding surface 323 is a curved surface. In this embodiment, the curvature of the second molding surface 323 is smaller than the curvature of the first molding surface 313. The second forging die 32 applies a pressing action to the second surface 100a of the plate 100 at the second forming surface 323, so that the second surface 100a of the plate 100 is deformed by the force, and the plate 100 is formed into a desired shape at the second surface 100 a.

In this embodiment, the first cavity 312 has a first flash 314 provided at the opening periphery of the first parting surface 311, the second cavity 322 has a second flash 324 provided at the opening periphery of the second parting surface 321, and the second flash 324 is opposite to the first flash 314. The first flash 314 extends circumferentially along the opening of the first cavity 312. The first flash 314 is used to contain the material extruded during the pressing process of the first forging die 31 on the first surface 100b of the plate 100. The second flash 324 is used for accommodating the material extruded by the second forging die 32 during the extrusion process of the second surface 100a of the plate 100. The first flash 314 includes an opening facing the second die 32, and the second flash 324 includes an opening facing the first die 31, and after the first die 31 and the second die 32 are closed, the first flash 314 and the second flash 324 are closed to form a flash cavity. The first flash 314 further includes a first opening 315 communicating with the first cavity 312, and when the first die 31 presses the plate 100, the material of the plate 100 enters the first flash 314 through the first opening 315. The second flash 324 further has a second opening 325 communicating with the second cavity 322, and when the second die 32 presses the plate 100, the material of the plate 100 enters the second flash 324 through the second opening 325. It will be appreciated that the opening of the first flash 314 at the first parting surface 311 is opposite to and the same size as the opening of the second flash 324 at the second parting surface 321. The caliber of the first opening 315 of the first flash tank 314 is equal to the caliber of the second opening 325 of the second flash tank 324, so that the stress reduction degree of the first flash tank 314 to the first case base 200 is equal to the stress reduction degree of the second flash tank 324 to the first case base 200, and the stress and the deformation of each part of the plate 10 are balanced.

The accommodation space of the first flash tank 314 is smaller than the flash space of the second flash tank 324. The deformation effect of the first forging die 31 on the first surface 100b of the plate 100 is smaller than the deformation effect of the second forging die 32 on the second surface 100a of the plate 100, and the deformation material of the plate 100 received by the first flash groove 314 is smaller than the deformation material of the first shell base 200 received by the second flash groove 324. It is understood that the first flash 314 is provided with a first rounded chamfer 316 at the first opening 315, and the second flash 324 is provided with a second rounded chamfer 326 at the opening of the second cavity 322. The first arc chamfer 316 connects the inner sidewall of the first flash 314 and the inner sidewall of the first cavity 312, so that the deformable material of the first housing base 200 is smoothly extruded into the first flash 314. The second arc chamfer 326 connects the inner sidewall of the second flash tank 324 and the inner sidewall of the second cavity 322, so that the deformable material of the first housing base 200 can be smoothly extruded into the second flash tank 324.

The first housing 200 includes a first side 210a and a second side 210b, which are oppositely disposed, and the first side 210a is opposite to the second side 210 b. The tab 210 also includes an end surface 210 c. The end surface 210c is a surface of the protrusion 210 away from the housing body 270. The camera hole 211 may be machined from the end surface 210 c.

Preferably, the first forging die and the second forging die move relatively for a plurality of times to press the plate 100 for a plurality of times, and the pressing force when the first forging die and the second forging die move relatively to press the plate 100 is gradually increased. The first forging die 31 performs multiple impacts on the second forging die 32, so that the plate 100 is gradually deformed, and finally, the plate is formed after multiple deformations, and thus, the stress distribution in the first shell base 200 formed by the plate 100 is uniform. And the impact force of the first forging die 31 impacting against the second forging die 32 is gradually increased, so that the stress distribution inside the first shell body 200 finally formed by the plate 100 is further improved, and the surface of the shell finally formed by the first shell body 200 is prevented from being gravure-printed due to uneven stress distribution. It is understood that said first die 31 and said second die 32 move relatively, that is, said first die 31 is fixed, and said second die 32 moves to press said plate 100, so as to obtain said first shell body 200; alternatively, the second forging die 32 is fixed, and the first forging die 31 moves to press the plate 100, so that the first case base 200 is obtained; alternatively, both the first forging die 31 and the second forging die 32 move to press the plate 100, so that the first case base 200 is obtained.

Referring again to fig. 5, the method further includes: in step S150, the bump 210 is processed to form a camera hole 211.

In one embodiment, the step S150 includes, but is not limited to, the steps S151-I and S152-I. Referring to fig. 12, fig. 12 is a schematic flowchart of the step S150 according to a preferred embodiment of the present invention.

Step S151-I, the bump 210 is processed to form a first through hole with the center of the bump 210 as a starting point.

Step S152-I, taking the first through hole as a starting point, removing a preset part of the material on the periphery of the first through hole to form a camera hole 211; and the removal speed is gradually reduced from the position adjacent to the first through hole to the position far away from the first through hole when the material at the periphery of the first through hole is removed.

In another embodiment, the step S150 includes, but is not limited to including, the steps S151-II and S152-II. Referring to fig. 13, fig. 13 is a schematic flowchart illustrating a process included in step S150 according to another preferred embodiment of the present invention.

Step S151-II, the bump 210 is processed to form a first through hole with the center of the bump 210 as a starting point.

Step S152-II, taking the first through hole as a starting point, removing a preset part of the material on the periphery of the first through hole to form a camera hole 211; and the precision when removing the material on the periphery of the first through hole is gradually increased from the position adjacent to the first through hole to the position far away from the first through hole.

The shell manufacturing method further comprises the following steps: and step 160, after the camera hole is processed, removing the flash edge 250.

Specifically, referring to fig. 14, fig. 14 is a schematic flowchart of the step S160 according to a preferred embodiment of the present invention. The step S160 includes, but is not limited to, the following steps.

S160-I, milling the flash edge 250, and forming a joint surface for connecting the first curved surface 230 and the second curved surface 240. In this embodiment, the flash edge 250 is milled by a numerically controlled milling machine to remove the flash edge. After the portions of the flash protruding from the first curved surface 230 and the second curved surface 240 are milled away, the bonding surface is formed between the first curved surface 230 and the second curved surface 240. The bonding surface is a flat surface, and a bonding line exists between the bonding surface and the first curved surface 230 and the second curved surface 240, so that the bonding surface needs to be further processed to meet the appearance requirement. Of course, in other embodiments, a grinding process may be used to remove the flash edge 250.

S160-II, processing the joint of the joint surface and the first curved surface 230 and the second curved surface 240. Specifically, in one embodiment, the step S160-II includes: grinding the joint of the joint surface and the first curved surface 230 and the second curved surface 240; alternatively, the junction surface is polished where it meets the first curved surface 230 and the second curved surface 240.

S160-III, a third curved surface connected with the first curved surface 230 and the second curved surface 240 in a circular arc manner is obtained.

In this embodiment, the flash edge 250 is milled by a numerically controlled milling machine to remove the flash edge 250. After the portions of the flash protruding from the first curved surface 230 and the second curved surface 240 are milled away, the bonding surface is formed between the first curved surface 230 and the second curved surface 240. The bonding surface is a flat surface, and a bonding line exists between the bonding surface and the first curved surface 230 and the second curved surface 240, so that the bonding surface needs to be further processed to meet the appearance requirement. Of course, in other embodiments, a grinding process may be used to remove the flash.

In an embodiment, the step S200 includes, but is not limited to, the step S210-I, please refer to fig. 15, and fig. 15 is a schematic flow chart of the step S210-I included in the step S200 according to a preferred embodiment of the present invention.

Step S210-I, detecting the positions of a plurality of points on the side of the housing body 270, determining the center of the camera hole 211 according to the positions of the plurality of points on the side of the housing body 270, and recording the center of the camera hole 211 as a first reference center O1. Preferably, when the housing body 270 has a rectangular shape, the number of detected points located on the long side of the rectangular shape is greater than the number of detected points located on the short side of the rectangular shape.

In one embodiment, the step S210-I includes, but is not limited to, the step S211, the step S212 and the step S213. Referring to fig. 16, fig. 16 is a schematic flow chart of steps S210-I according to a preferred embodiment of the present invention.

In step S211, the center of the camera hole 211 determined by detecting the positions of the plurality of points on the side of the housing body 270 at a time is regarded as a first center.

In step S212, the positions of a plurality of points on the housing body 270 are detected a plurality of times to obtain a plurality of first centers.

Step S213, obtaining the first reference center O1 according to an average value of the plurality of first centers.

In another embodiment, the step S200 includes, but is not limited to including, the step S210-II. Referring to fig. 17, fig. 17 is a schematic flowchart illustrating a process included in step S200 according to a preferred embodiment of the present invention.

In step S210-II, a plurality of positioning elements are formed on the side of the housing body 270, and the center of the camera hole 211 is determined based on the plurality of positioning elements formed on the side of the housing body 270, where the center of the camera hole 211 is marked as a first reference center O1. Preferably, the positioning element and the bump 210 are formed in the same process. For example, a sheet of material is provided and the sheet of material is forged to form the locating elements and the protrusions 210.

In one embodiment, the step S300 includes, but is not limited to, the step S310. Referring to fig. 18, fig. 18 is a schematic flowchart illustrating the process of step S300 according to a preferred embodiment of the present invention.

Step S310, detecting the positions of a plurality of points on the circumference of the bump 210, determining the center of the bump 210 according to the positions of the plurality of points on the circumference of the bump 210, and recording the center of the bump 210 as a second reference center O2.

In one embodiment, the step S310 includes, but is not limited to, the steps S311, S312 and S313. Referring to fig. 19, fig. 19 is a flowchart illustrating the step S310 according to a preferred embodiment of the present invention.

In step S311, the center of the bump 210 determined by detecting the positions of the plurality of points on the periphery of the bump 210 each time is regarded as a second center.

In step S312, the positions of the plurality of points on the periphery of the bump 210 are detected a plurality of times to obtain a plurality of second centers.

In step S313, the second reference center O2 is obtained according to an average value of the plurality of second centers.

The manufacturing method of the shell further comprises the following steps: removing the material from the side of the first housing base 200 away from the bump 210 to form an inner cavity 510 of the housing; and forming an antenna seam 530 on the first housing base 200 on the side where the bump 210 is located, and finally forming the housing 500 including the housing inner cavity 510, the antenna seam 530 and the camera hole 520. Please refer to fig. 20.

The foregoing is illustrative of embodiments of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the embodiments of the present invention and are intended to be within the scope of the present invention.

Claims

1. A shell manufacturing method is characterized by comprising the following steps:

determining the center of the camera hole as a first reference center;

determining the center of the bump as a second reference center;

2. A method of manufacturing a housing according to claim 1, wherein the radiation range is located between the first reference center and the second reference center.

3. A method of manufacturing a housing according to claim 1, wherein the third reference center is located at a midpoint of a line connecting the first reference center and the second reference center.

4. The housing manufacturing method according to claim 1, wherein the "determining the center of the camera hole as the first reference center" includes:

and detecting the positions of a plurality of points on the side edge of the shell body, determining the center of the camera hole according to the positions of the plurality of points on the side edge of the shell body, and recording the center of the camera hole as a first reference center.

5. The method for manufacturing a housing according to claim 4, wherein the detecting positions of a plurality of points on the side of the housing body, determining the center of the camera hole from the positions of the plurality of points on the side of the housing body, and recording the center of the camera hole as a first reference center includes:

recording the center of a camera hole determined by detecting the positions of a plurality of points on the side of the shell body as a first center;

detecting the positions of a plurality of points on the shell body for a plurality of times to obtain a plurality of first centers;

and obtaining the first reference center according to the average value of the plurality of first centers.

6. The housing manufacturing method according to claim 1, wherein the "determining the center of the camera hole as the first reference center" includes:

forming a plurality of positioning pieces on the side edge of the shell body, determining the center of the camera hole by taking the plurality of positioning pieces formed on the side edge of the shell body as a reference, and marking the center of the camera hole as a first reference center.

7. The method of claim 6, wherein the positioning element and the bump are formed in a same process.

8. The method for manufacturing a housing according to any one of claims 1 to 7, wherein the determining that the center of the bump is the second reference center includes:

and detecting the positions of a plurality of points on the periphery of the bump, determining the center of the bump according to the positions of the points on the periphery of the bump, and recording the center of the bump as a second reference center.

9. The method for manufacturing a housing according to claim 1, wherein the step of providing a first housing base, the first housing base including a protrusion and a housing body, the protrusion being disposed on the housing body in a protruding manner, and the protrusion having a camera hole, comprises:

providing a plate;

providing a forging die, wherein the forging die comprises a first forging die and a second forging die, the first forging die comprises a boss, and the boss is used for forming the lug;

placing the plate into a first forging die or a second forging die;

the first forging die and the second forging die move relatively to press the plate, so that a first shell body comprising a lug is obtained;

and processing the bump to form a camera hole.

10. The method for manufacturing a housing according to claim 9, wherein the step of machining the bump to form a camera hole comprises:

processing the bump by taking the center of the bump as a starting point to form a first through hole;

taking the first through hole as a starting point, removing a preset part of the material on the periphery of the first through hole to form a camera hole; and the removal speed is gradually reduced from the position adjacent to the first through hole to the position far away from the first through hole when the material on the periphery of the first through hole is removed.

11. The method for manufacturing a housing according to claim 9, wherein the step of machining the bump to form a camera hole comprises:

taking the first through hole as a starting point, removing a preset part of the material on the periphery of the first through hole to form a camera hole; and the precision when removing the material on the periphery of the first through hole is gradually increased from the position adjacent to the first through hole to the position far away from the first through hole.

12. The method of manufacturing a housing according to claim 9, wherein the "relatively moving the first forging die and the second forging die to press the plate to obtain the first housing base including the bump" includes:

the first forging die and the second forging die move relatively for multiple times to press the plate for multiple times, and the pressing force when the first forging die and the second forging die move relatively to press the plate is gradually increased.