CN106028724B - A kind of processing method of rear cover, rear cover and electronic equipment - Google Patents
A kind of processing method of rear cover, rear cover and electronic equipment Download PDFInfo
- Publication number
- CN106028724B CN106028724B CN201610380236.1A CN201610380236A CN106028724B CN 106028724 B CN106028724 B CN 106028724B CN 201610380236 A CN201610380236 A CN 201610380236A CN 106028724 B CN106028724 B CN 106028724B
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- rear cover
- finished product
- sheet metal
- semi
- processing method
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/04—Metal casings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/002—Hybrid process, e.g. forging following casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
- B29C45/0055—Shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K5/00—Casings, cabinets or drawers for electric apparatus
- H05K5/02—Details
- H05K5/03—Covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/1418—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure
- B29C2045/14237—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity
- B29C2045/14245—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the inserts being deformed or preformed, e.g. by the injection pressure the inserts being deformed or preformed outside the mould or mould cavity using deforming or preforming means outside the mould cavity
Abstract
The present invention provides a kind of processing method of rear cover, rear cover and electronic equipments, wherein processing method includes: forging and stamping sheet metal, rear cover semi-finished product are made, the rear cover semi-finished product form an accommodating space in inner surface, appearance is formed in outer surface, wherein, the sheet metal is made by carrying out extrusion process to metal germule；Ageing treatment is carried out to the rear cover semi-finished product；Structure feature and external appearance characteristic are processed on the rear cover semi-finished product after ageing treatment, form rear cover.The program can save raw material, and largely reduce CNC process time, save cost.
Description
Technical field
The present invention relates to electronic equipment part preparation field more particularly to a kind of processing methods of rear cover, rear cover and electronics
Equipment.
Background technique
With the continuous development of terminal (such as mobile phone), mobile phone increasingly fashion.Aluminium alloy cell phone rear cover is due to its anode color
Coloured silk is abundant, and texture is good, so using more more and more universal.While possessing cell phone appearance expressive force, how manufacturing cost is reduced,
Also become the problem of considering to mobile phone producer.
The aluminum alloy plate materials that current such aluminium alloy cell phone rear cover is manufactured by then passing through calendering process, such as 5052
Aluminium alloy extrusions series, plate surface has strip piebald after anodic oxidation, influences cell phone appearance, and product yield is not high,
And intensity is not so good as 6 systems (usually 6063 or 6061) aluminium alloy extrusions.So cell phone rear cover is closed with the aluminium of one piece of 6 system
Metal type material, by CNC (Computer Numerical Control, numerically-controlled machine tool) and injection molding, process its appearance and
Including aerial signal penetrate gap including structure feature.This method not only wastes a large amount of raw material of aluminum alloy, and is preparing
It needs to spend many CNC working hours when appearance and internal feature, cost is very high.
Summary of the invention
The embodiment of the present invention provides processing method, rear cover and the electronic equipment of a kind of rear cover, to solve to produce in the prior art
The problems such as product yield is not high, wastes a large amount of raw material, spends many working hours, and cost is very high.
In order to solve the above-mentioned technical problem, the embodiment of the present invention adopts the following technical scheme that
On the one hand, the embodiment of the invention provides a kind of processing methods of rear cover, comprising:
Drawing sheet metal is forged and pressed, the rear cover semi-finished product with accommodating space and appearance, the rear cover semi-finished product are made
An accommodating space is formed in inner surface, forms appearance in outer surface, wherein the sheet metal is by squeezing metal germule
Pressure processing is made；
Ageing treatment is carried out to the rear cover semi-finished product；
Structure feature and external appearance characteristic are processed on the rear cover semi-finished product after ageing treatment, form rear cover.
On the other hand, the embodiment of the invention provides a kind of rear cover, the rear cover uses the processing of rear cover as described above
Method is made.
On the other hand, the embodiment of the invention also provides a kind of electronic equipment, including rear cover as described above.
The beneficial effect of the embodiment of the present invention is:
Using sheet metal made of extrusion process in the embodiment of the present invention, forging and stamping drawing is carried out on the sheet metal,
Rear cover semi-finished product are formed, and just carry out ageing treatment after forging and pressing drawing, this kind of method, so that in process, in anodic oxygen
Cap surface is not in striped piebald after after change, removes the working processes processes such as subsequent polishing from, has better processing effect,
Can largely improve product yield and production efficiency, save raw material, and largely reduce CNC process time, save at
This.
Detailed description of the invention
Fig. 1 shows the flow diagrams of the processing method of rear cover in first embodiment of the invention；
Fig. 2 indicates that opening up aerial signal in second embodiment of the invention on rear cover semi-finished product penetrates gap and believe in antenna
Number penetrate the idiographic flow schematic diagram that injection process is carried out at gap；
Fig. 3 indicates that rear cover corresponding with each step of the processing method of rear cover changes schematic diagram in the embodiment of the present invention；
Fig. 4 indicates the structural schematic diagram one of rear shell in the embodiment of the present invention；
Fig. 5 indicates the structural schematic diagram two of rear shell in the embodiment of the present invention；
Fig. 6 indicates the structural schematic diagram three of rear shell in the embodiment of the present invention.
Specific embodiment
Exemplary embodiments of the present disclosure are described in more detail below with reference to accompanying drawings.Although showing the disclosure in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
It is limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
It is fully disclosed to those skilled in the art.
First embodiment
The embodiment of the present invention provides a kind of processing method of rear cover, and as shown in connection with fig. 1, which includes:
Step 101: rear cover semi-finished product are made in forging and stamping sheet metal, and the rear cover semi-finished product form an accommodating in inner surface
Space forms appearance in outer surface.
Wherein, which is made by carrying out extrusion process to metal germule.The sheet metal is preferably aluminium alloy plate
Material forms the internal cavity size that rear cover needs, in interior table by forging and stamping, the drawing sheet metal by pre-set dimension first
Face forms the accommodating space and form the appearance of rear cover semi-finished product in outer surface that can accommodate that other component is installed.
Wherein, the production forming process of sheet metal are as follows: extrusion process is carried out to mental section germule, being formed has centainly
The sheet metal of thickness.
Step 102: ageing treatment is carried out to the rear cover semi-finished product.
In process treatment process, to avoid this sheet metal from cracking when forging and pressing drawing, the processing work
Sheet metal in skill not can be carried out fixation rates after extrusion forming, i.e., is not implementing solid solution before forging and pressing drawing to it
Ageing treatment needs implementing the ageing process after forging and pressing drawing to it.
Step 103: structure feature and external appearance characteristic are processed on the rear cover semi-finished product after ageing treatment, after formation
Lid.
The structure feature, which refers to, is able to cooperate the structure member that other component is assembled needed for rear cover finished product；The appearance
It is characterized in the characteristic information being embodied in appearance comprising identification information, color figure etc..The external appearance characteristic is specifically by CNC
Carry out processing realization.After this step, can also specifically be unfolded to carry out rear cover the post-processing treatment process such as anodic oxidation, with
Form rear cover.
In the above scheme of the present embodiment, using sheet metal made of extrusion process, forged on the sheet metal
Drawing is pressed, forms rear cover semi-finished product, and just carry out ageing treatment after forging and pressing drawing, this kind of method, so that in process,
Cap surface is not in striped piebald after after anodic oxidation, removes the working processes processes such as subsequent polishing from, has and preferably add
Work efficiency fruit can largely improve product yield and production efficiency, save cost.
The sheet metal of this programme and ageing treatment, is placed on after forging and stamping drawing by extrusion forming, can
CNC process time is largely reduced, and saves raw material, has more apparent help to cost is reduced, in proof strength and aesthetic look,
While not reducing appearance and casing rigidity, the manufacturing cost of entire rear cover can be reduced significantly, is had higher
Cost advantage.
Second embodiment
Further, as shown in connection with fig. 3, a kind of processing method of rear cover is provided in the present embodiment, this method comprises:
Sheet metal is forged and pressed, rear cover semi-finished product are made, the rear cover semi-finished product form an accommodating space in inner surface, outside
Surface forms appearance, wherein the sheet metal is made by carrying out extrusion process to metal germule；To the rear cover semi-finished product
Carry out ageing treatment；Structure feature and external appearance characteristic are processed on the rear cover semi-finished product after ageing treatment, form rear cover.
In the following, by the above method further to realization step and correlation step in preferred implementation do
Further instruction out.
Specifically, including for cooperating antenna installation and the aerial signal having an effect to penetrate gap in the structure feature.
Rear cover made of usual metal, is not only a shell, plays the role of protecting internal structure of mobile phone, there are also antenna and ground connection etc. are electric
Subfunction.The metal back cover is usually all machined with the gap penetrated for aerial signal.
Wherein, the step of structure feature is processed on the rear cover semi-finished product after ageing treatment, specifically includes:
To on timeliness treated rear cover semi-finished product accommodating space and appearance carry out forging and stamping shaping；It is whole forging and pressing
Aerial signal is opened up on the rear cover semi-finished product after shape penetrate gap and penetrate in the aerial signal be molded at gap
Processing.
The aerial signal penetrates opening up for gap and carries out processing realization specifically by CNC；The injection process is specially NMT
(Nano Molding Technology, nanometer forming technique) injection molding is formed.
Specifically, aerial signal is opened up on forging and pressing the rear cover semi-finished product after shaping penetrate gap and in the antenna
Signal penetrates the step of injection process is carried out at gap, as shown in connection with fig. 2, comprising:
Step 201: opening up groove portion in the inner surface of the rear cover semi-finished product, the groove portion is prolonged on one side by the inner surface
Extend to opposite another side.
The aerial signal of the rear cover penetrates gap during processing formation, before injection molding, first in rear cover semi-finished product
Inner surface opens up groove portion, which has certain depth, but does not penetrate to appearance, and rear cover semi-finished product pass through appearance part
It is maintained as a complete metal cap body, the design of such groove portion ensures that the intensity in injection molding, and facilitates injection molding fixed
Position.Preferably, as shown in Figure 4, Figure 5, which is two, is respectively arranged at the predeterminable area close to rear cover end, tool
Body is parallel arrangement on the inner surface of rear cover.
Step 202: carrying out injection process in the groove portion, form the injection moulding belt for filling the groove portion.
When carrying out injection process, injection molding can be made by the way that when processing groove portion, CNC goes out to draw glue position, carries out injection molding
Plastic cement is closely connect with metal back cover.
Step 203: machine tooling being carried out to position corresponding with the groove portion in the appearance, forms the antenna letter
Number gap is penetrated, the rear cover semi-finished product are formed as the multiple branches being coupled by the injection moulding belt.
Rear cover, by its appearance of CNC, the metal at position corresponding with groove portion in appearance is gone after the completion of injection molding
It removes, groove portion is penetrated through to appearance, is formed aerial signal and is penetrated gap, and rear cover semi-finished product are completely separated into different sections, by
It is an entirety that the injection moulding belt that injection molding is formed, which is coupled,.As shown in fig. 6, filling this aerial signal by the plastic cement 3 being molded penetrates seam
Gap connects the different piece of rear cover by plastic cement 3.When 1 quantity of groove portion be two when, rear cover semi-finished product be separated into upper cover 4, in
Lid 5 and lower cover 6.
Further, as shown in figure 5, carrying out injection process in the groove portion, formed fill the groove portion injection moulding belt it
Before, the processing method further include:
On the cover rim of the rear cover semi-finished product, the groove portion opens up place, and cruciform groove 2 is made；In the groove portion
When carrying out injection process, injection process further is carried out to the cruciform groove 2.
Here, to ensure that plastic cement and metal back cover are firmly combined, design has the slot of " ten " font in metal back cover, those ten
Font groove 2 is particularly located on the cover rim of rear cover semi-finished product, it is preferable that and the lateral part of cruciform groove 2 is overlapped with the groove portion,
Vertical section is vertical with groove portion.The slot of these " ten " fonts is all filled plastic cement in injection molding, the plastic cement after reinforcing injection molding
Adhesive force guarantees injection molding effect.
Specifically, the step of external appearance characteristic of rear cover needs is made on the rear cover semi-finished product after ageing treatment, packet
It includes: penetrating gap opening up aerial signal and penetrate the rear cover half after carrying out injection process at gap in the aerial signal
The external appearance characteristic of rear cover needs is made on finished product.
That is, it needs to after open up aerial signal and having penetrated gap and injection process, then in the appearance of rear cover semi-finished product
The external appearance characteristic of needs is made on face, wherein concretely realize by CNC, CNC is specifically for processing rear cover shape and less
The inner structural features of amount are molded structure feature etc. required when drawing glue if aerial signal penetrates gap.
Specifically, it in forging and stamping drawing sheet metal, is made before the rear cover semi-finished product with accommodating space and appearance, it should
Processing method further include: heat the sheet metal to a preset temperature, the preset temperature is tied again than the sheet metal
Brilliant temperature is 10~20 degree low.When the metal is aluminum alloy materials, which preferably will be heated to 130 ° or so, so as to the gold
The hardness for belonging to plate can achieve the suitable stiffness that forging and stamping drawing processing is carried out to it.
Specifically, described the step of ageing treatment is carried out to the rear cover semi-finished product, comprising: according to scheduled ageing treatment
Parameter, to the rear cover semi-finished product carry out ageing treatment, the scheduled ageing treatment parameter include: treatment temperature be 180~
200 °, handling duration is 8~10 hours.
Specifically, it is described to the rear cover semi-finished product carry out ageing treatment the step of, comprising: to the rear cover semi-finished product into
Row ageing treatment, until the surface hardness of the sheet metal reaches 100 Vickers hardnesses or more.
To avoid this sheet metal from cracking in punching press drawing, plate hardness need to be less than 40 Vickers hardnesses；Forging and stamping
After drawing, semi-finished product are put into aging furnace, 180~200 ° of temperature, handling duration 8~10 hours, timeliness rear surface hardness requirement
Reach 100 Vickers hardnesses or more；After ageing treatment, shaping is further forged and pressed, it is ensured that chamber size in required cell phone rear cover.
Preferably, the material of the sheet metal is aluminium alloy.This is used to forge and press the aluminum alloy plate materials that drawing forms rear cover, is
By 6 line aluminium alloys (such as 6063) extrusion forming, rather than common calendering plate.Specifically, the hardness of the aluminum alloy plate materials
Less than 40 Vickers hardnesses, guarantee that the rear cover finally prepared has good final product quality.
A kind of rear cover is also disclosed in the present embodiment, which is made of the processing method of rear cover as described above.
A kind of electronic equipment is also disclosed in the present embodiment, which includes the upper rear cover.The electronic equipment
Preferably mobile phone.
Above-described is the preferred embodiment of the present invention, it should be pointed out that the ordinary person of the art is come
It says, can also make several improvements and retouch under the premise of not departing from principle of the present invention, these improvements and modifications also exist
In protection scope of the present invention.
Claims (8)
1. a kind of processing method of rear cover characterized by comprising
Sheet metal is forged and pressed, rear cover semi-finished product are made, the rear cover semi-finished product form an accommodating space in inner surface, in outer surface
Form appearance, wherein the sheet metal is made by carrying out extrusion process to metal germule；
To the rear cover semi-finished product carry out ageing treatment, until the sheet metal surface hardness reach 100 Vickers hardnesses with
On；
Structure feature and external appearance characteristic are processed on the rear cover semi-finished product after ageing treatment, form rear cover；
Wherein, the production forming process of sheet metal are as follows: extrusion process is carried out to mental section germule, being formed has certain thickness
Sheet metal；The sheet metal hardness is less than 40 Vickers hardnesses；
Wherein, form the internal cavity size that rear cover needs by forging and stamping, sheet metal described in drawing by pre-set dimension, with
Inner surface forms the accommodating space, does not implement fixation rates before forging and pressing drawing to the sheet metal；
Stretched sheet metal material is forged and pressed, is made before the rear cover semi-finished product with accommodating space and appearance, the processing method is also
Include:
The sheet metal being heated to a preset temperature, the preset temperature is lower than the recrystallization temperature of the sheet metal 10~
20 degree.
2. processing method according to claim 1, which is characterized in that the rear cover semi-finished product after ageing treatment
The step of upper processing structure feature, comprising:
To on timeliness treated rear cover semi-finished product accommodating space and appearance carry out forging and stamping shaping；
Aerial signal is opened up on forging and pressing the rear cover semi-finished product after shaping to penetrate gap and penetrate seam in the aerial signal
Injection process is carried out at gap.
3. processing method according to claim 2, which is characterized in that the rear cover semi-finished product after forging and pressing shaping
On open up aerial signal penetrate gap and the aerial signal penetrate at gap carry out injection process the step of, comprising:
Groove portion is opened up in the inner surface of the rear cover semi-finished product, and the groove portion is opposite another by extending on one side for the inner surface
On one side；
Injection process is carried out in the groove portion, forms the injection moulding belt for filling the groove portion；
Machine tooling is carried out to position corresponding with the groove portion in the appearance, the aerial signal is formed and penetrates gap,
The rear cover semi-finished product are formed as the multiple branches being coupled by the injection moulding belt.
4. processing method according to claim 3, which is characterized in that it is described to carry out injection process in the groove portion, it is formed
Before the injection moulding belt for filling the groove portion, the processing method further include:
On the cover rim of the rear cover semi-finished product, the groove portion opens up place, and cruciform groove is made；
When the groove portion carries out injection process, injection process further is carried out to the cruciform groove.
5. processing method according to claim 1, which is characterized in that described to carry out ageing treatment to the rear cover semi-finished product
The step of, comprising:
According to scheduled ageing treatment parameter, ageing treatment, the scheduled ageing treatment ginseng are carried out to the rear cover semi-finished product
Number includes: that treatment temperature is 180~200 °, and handling duration is 8~10 hours.
6. processing method according to claim 1, which is characterized in that the material of the sheet metal is aluminium alloy.
7. a kind of rear cover, which is characterized in that the processing method that the rear cover uses rear cover as claimed in any one of claims 1 to 6
It is made.
8. a kind of electronic equipment, which is characterized in that including rear cover as claimed in claim 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380236.1A CN106028724B (en) | 2016-05-31 | 2016-05-31 | A kind of processing method of rear cover, rear cover and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610380236.1A CN106028724B (en) | 2016-05-31 | 2016-05-31 | A kind of processing method of rear cover, rear cover and electronic equipment |
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| Publication Number | Publication Date |
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| CN106028724A CN106028724A (en) | 2016-10-12 |
| CN106028724B true CN106028724B (en) | 2019-08-20 |
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