CN108174541A - A kind of metal shell and preparation method thereof, mobile terminal - Google Patents
A kind of metal shell and preparation method thereof, mobile terminal Download PDFInfo
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- CN108174541A CN108174541A CN201711243206.7A CN201711243206A CN108174541A CN 108174541 A CN108174541 A CN 108174541A CN 201711243206 A CN201711243206 A CN 201711243206A CN 108174541 A CN108174541 A CN 108174541A
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- China
- Prior art keywords
- metal shell
- center
- protrusion
- gear shaping
- protegulum
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Classifications
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- 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
- H05K5/0217—Mechanical details of casings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Adornments (AREA)
Abstract
An embodiment of the present invention provides a kind of metal shells and preparation method thereof,Mobile terminal,Metal shell includes back-cover and center,Back-cover connects the inner cavity to form metal shell with center,Corresponding position is provided at least one day linear slit in back-cover and/or center,It the medial surface of center and is respectively arranged at the position on day linear slit both sides and grabs plastic structure,It grabs plastic structure and is provided with gear shaping slot,Its linear slit grabs plastic structure filled with plastic cement and plastic cement cladding,In the embodiment of the present invention,Grab plastic structure increased by gear shaping slot grab plastic structure grab glue ability,Effectively increase the binding ability of metal shell and plastic cement,So that mobile terminal will not cause to scrap when falling or repairing and tear machine open because of metal and plastic cement separation,Brand quality and competitiveness can be improved,And gear shaping slot can be formed on protrusion by modes such as Gear Shapings,Drill etc. without metal shell is divided into multistage and be molded again after processing,Simplify processing technology,Reduce processing cost.
Description
Technical field
The present invention relates to electronic product machining technical fields, more particularly, to a kind of metal shell and preparation method thereof, move
Dynamic terminal.
Background technology
Universal with mobile terminal, people propose the appearance of mobile terminal higher requirement, demand in tactile and
Apparent visual has better experience, this promotes more and more manufacturers to use fuselage of the metal shell as mobile terminal.
Using metal shell as in the mobile terminal of fuselage, in order to improve the RF capabilities of antenna, it usually needs
Metal shell is provided with a day linear slit, by ensureing the integrality of fuselage and structural strength in day linear slit injection plastic cement.In order to carry
The bond strength of high plastic cement and metal shell is usually provided on metal shell and grabs plastic structure.
As shown in Figure 1, higher for current reliability grabs plastic structure, this is grabbed plastic structure and hole is threaded on metal shell
100 carry out grabbing glue, and metal shell and plastic cement is made firmly to grip in together, have good effect in reliability test.But
When metal shell needs to set a plurality of day linear slit, since auger shell pit 100 needs certain space, day linear slit needs fully
Metal shell is blocked into ability auger shell pit 100, this so that metal shell is divided into multistage, is put again after thread mill drilling 100
Enter to carry out insert injection moulding in mold to be integrated so that technique becomes complicated, increases manufacturing cost.
Grabbing in plastic structure for the binding force of another kind raising metal shell and plastic cement, is pair metal surface combined with plastic cement
Carry out nanometered disposal so that metal surface forms the honeycomb hole of 30-90nm, then by metal shell by the way of nanometer injection
It is combined together with plastic cement.Nanometer Shooting Technique is relatively simple, but the binding force of the metal shell and plastic cement after nanometer injection
Still cannot meet reliability test requirement, this can cause mobile terminal occur when falling or repair and tear machine open metal shell with
Plastic cement detaches, and mobile terminal is caused to scrap, reduces brand quality and competitiveness.
Invention content
The embodiment of the present invention proposes a kind of metal shell and preparation method thereof, mobile terminal, to solve outside current metal
Shell grab plastic structure to grab glue intensity insufficient and grab the problem of plastic structure processing technology is complicated.
To solve the above-mentioned problems, the embodiment of the present invention is realized in：
In a first aspect, an embodiment of the present invention provides a kind of metal shell, applied to mobile terminal, including metal material
Back-cover and center, the back-cover connect the inner cavity to form metal shell with the center, corresponding in the back-cover and/or center
Position is provided at least one day linear slit, and the medial surface of the center and being respectively arranged at the position on day linear slit both sides is grabbed cementing
Structure, the plastic structure of grabbing are provided with gear shaping slot.
Second aspect, provides a kind of mobile terminal, and the mobile terminal is included outside metal provided in an embodiment of the present invention
Shell.
The third aspect provides a kind of preparation method of metal shell, including：
Prepare the embryo material of metal shell；
Form protegulum on the embryo material, the protegulum includes the inner cavity that back-cover, center, back-cover and center formed, described
At least one day linear slit and connect and be located at the center medial surface that corresponding position is set in back-cover and/or center
At least one protrusion of its linear slit two sides；
At least one gear shaping slot is formed at least one protrusion, obtains grabbing plastic structure；
At least one day linear slit and the plastic structure of grabbing are molded, plastic cement is obtained and fills to described at least one
The protegulum after the injection of plastic structure is grabbed described in its linear slit and cladding；
According to default face shaping, sharp processing is carried out to the protegulum after injection, obtains metal shell；
The metal shell is surface-treated, obtains metal shell finished product.
The metal shell of the embodiment of the present invention, applied to mobile terminal, back-cover and center including metal material, back-cover and
Center connects the inner cavity to form metal shell, and corresponding position is provided at least one day linear slit, center in back-cover and/or center
Medial surface and be respectively arranged at the position on day linear slit both sides and grab plastic structure, grab plastic structure and be provided with gear shaping slot, day linear slit is filled out
Plastic structure is grabbed filled with plastic cement and plastic cement cladding, using the embodiment of the present invention, plastic structure is grabbed and is provided with gear shaping slot, increased by gear shaping slot
The binding ability grabbed glue ability, effectively increase metal shell and plastic cement for grabbing plastic structure is added so that mobile terminal is falling
Or repair to detach because of metal and plastic cement when tearing machine open and cause to scrap, brand quality and competitiveness can be improved.
The metal shell preparation method of the embodiment of the present invention, after the protegulum of metal shell is formed, it is only necessary on protrusion
Gear shaping slot is formed, drill etc. without metal shell is divided into multistage is molded again after processing, simplifies processing technology,
Reduce processing cost.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the present invention
Example, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structure diagram for grabbing plastic structure in the prior art；
Fig. 2 is a kind of structure diagram of metal shell of the embodiment of the present invention；
Fig. 3 is the enlarged structure schematic diagram of the partial view A in Fig. 2；
Fig. 4 is the structure diagram of the gear shaping slot for grabbing plastic structure of the embodiment of the present invention；
Fig. 5 is the B of the gear shaping slot of the embodiment of the present invention in Fig. 4 to structure diagram；
Fig. 6 is a kind of processing step flow chart of the embodiment one of the preparation method of metal shell of the present invention；
Fig. 7 is the structure diagram for the embryo material that metal shell is prepared in the embodiment of the present invention；
Fig. 8 is the structure diagram of the protegulum of the metal shell formed in the embodiment of the present invention；
Fig. 9 is the enlarged structure schematic diagram of partial view C in Fig. 8；
Figure 10 is a kind of processing step flow chart of the embodiment two of the preparation method of metal shell of the present invention；
The structure diagram of pinion cutter that Figure 11 is used when being and forming gear shaping slot in the embodiment of the present invention two.
Figure 12 is a kind of processing step flow chart of the embodiment three of the preparation method of metal shell of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
Fig. 2 is a kind of structure diagram of metal shell of the embodiment of the present invention, and Fig. 3 is putting for the partial view A in Fig. 2
Big structure schematic diagram.
As shown in Figures 2 and 3, the metal shell of the embodiment of the present invention is applied to mobile terminal, the back of the body including metal material
Lid 1 and center 2, back-cover 1 and center 2 connect the inner cavity for forming metal shell, and corresponding position is set in back-cover 1 and/or center 2
There is at least one day linear slit 3, the medial surface of center 2 and be respectively arranged at the position on 3 both sides of day linear slit and grab plastic structure 4, grab glue
Structure 4 is provided with gear shaping slot 42, and day linear slit 3 grabs 4 (not shown) of plastic structure filled with plastic cement and plastic cement cladding.
Specifically, grabbing plastic structure 4 includes at least one protrusion 41 being connect with 2 medial surface of center, protrusion 41 is set
At least one gear shaping slot 42 is equipped with, gear shaping slot 42 is located at the one end of protrusion 41 far from center 2, and can be in gold through object (plastic cement)
The thickness direction for belonging to shell runs through protrusion 41 by gear shaping slot 42.The quantity of protrusion 41 and gear shaping slot 42 thereon can be by
Those skilled in the art are configured depending on actual conditions, and the embodiment of the present invention does not limit this.
Protrusion 41 can be the sheet metal protruded from the inward-facing chamber in the inside of center 2, can be on sheet metal far from
One end of frame 2 processes at least one gear shaping slot 42 so that when in day, linear slit 3 injects plastic cement, plastic cement grabs plastic structure 4 in cladding
Meanwhile plastic cement is filled into gear shaping slot 42, improves the binding force of plastic cement and metal shell so that metal shell and plastic cement are not easy point
From.
As shown in figure 4, in one preferred embodiment of the invention, opening width of the gear shaping slot 42 far from 2 one end of center
Size is greater than or equal to the opening width size close to 2 one end of center.Specifically, as shown in figure 4, the section of gear shaping slot 42 can
To think trapezoidal, for the opening width size of one end far from center 3 for D1, the opening width size close to 2 one end of center is d1,
Middle D1 is greater than or equal to d1, this allows gear shaping slot 42 to be processed using Gear Shaping technique, reduces and grabs adding for plastic structure 4
Work difficulty.
Fig. 4 is the structure diagram of the gear shaping slot for grabbing plastic structure of the embodiment of the present invention, and Fig. 5 is inserting for the embodiment of the present invention
The B of tooth socket in Fig. 4 is to structure diagram, as shown in Figure 4 and Figure 5, in one preferred embodiment of the invention, protrusion 41
With 2 medial surface of center (Fig. 4 and Fig. 5 do not show, with reference to Fig. 3) vertically, the quantity of protrusion 41 is at least two, and in mobile terminal
Thickness direction arrangement arranged in parallel.
As shown in figure 3,2 medial surface of center in 3 both sides of day linear slit is both provided with and grabs plastic structure 4, grabbing plastic structure 4 can wrap
Include at least one protrusion 41, with further improve grab plastic structure 4 grab glue ability.It specifically, can be in 3 both sides of day linear slit
Center 2 on, multiple sheet metals arranged in parallel in mobile terminal thickness direction is set to form the protrusion of multiple parallel distributions
Portion 41, between neighbouring two protrusions 41 at intervals, plastic cement is inserted during to be molded.
Certainly, the quantity of protrusion 41 can be set according to the layout of mobile terminal, for example, in 3 side of day linear slit
Three protrusions 41 can be set on the medial surface of center 2, it can be only on the medial surface of the center 2 of the opposite side of day linear slit 3
One or two protrusions 41 are set, and those skilled in the art can be configured depending on concrete condition, the embodiment of the present invention pair
The quantity of protrusion does not limit.
As shown in Figure 4 and Figure 5, when the quantity of protrusion 41 is two or more, gear shaping slot 42 is close to back-cover 1
The width dimensions of side are more than the width dimensions far from 1 side of back-cover, i.e., gear shaping slot 42 is in section of the thickness direction of mobile terminal
Face has certain taper, such as trapezoidal.
Specifically, as shown in Figure 4 and Figure 5, protrusion 41 is arranged in parallel for three and in the thickness direction of mobile terminal,
Now illustrated with two protrusions therein.
In Figure 5, width dimensions include the width dimensions dn of the close center 2 on n-th of protrusion 41 of gear shaping slot 42, far
Width dimensions Dn from center 2, for example, on first protrusion 41 (protrusion far from back-cover), gear shaping slot 42 is in
The width dimensions of frame 2 are respectively d1 and d1', and the width dimensions far from center 2 are respectively D1 and D1', in second protrusion 41
On (close to the protrusion of back-cover), gear shaping slot 42 is respectively d2 and d2' close to the width dimensions of center 2, the width far from center 2
Size is respectively D2 and D2', then D2' >=D2 >=D1' >=D1, d2' >=d2 >=d1' >=d1, i.e., thrown from the B directions in Fig. 4
Shadow, gear shaping slot 42 have certain taper, such as trapezoidal, can increase the binding force for grabbing plastic structure 4 and plastic cement.
As shown in figure 3, in one preferred embodiment of the invention, conduction hole 43 is provided on protrusion 41, the drainage
Hole 43 can increase the mobility of plastic cement in a mold in injection so that plastic cement is sufficient filling with and cladding grabs plastic structure 4, simultaneously
Also the binding force for grabbing plastic structure 4 and plastic cement can be further improved.
In the embodiment of the present invention, grab plastic structure and be provided with gear shaping slot, increased by gear shaping slot grab plastic structure grab glue energy
Power effectively increases the binding ability of metal shell and plastic cement so that mobile terminal will not be because when falling or repairing and tear machine open
It causes to scrap for metal and plastic cement separation, brand quality and competitiveness can be improved.
In the embodiment of the present invention, gear shaping slot mobile terminal thickness direction have certain taper, can increase grab it is cementing
The binding force of structure and plastic cement.
An embodiment of the present invention provides a kind of mobile terminal, the mobile terminal includes metal provided in an embodiment of the present invention
Shell.
Fig. 6 is a kind of processing step flow chart of the embodiment one of the preparation method of metal shell of the present invention, such as Fig. 6 institutes
Show, a kind of preparation method of metal shell of the embodiment of the present invention can be applied to a kind of metal provided in an embodiment of the present invention
The preparation of shell, the preparation method of the metal shell include：
Step 101, the embryo material of metal shell is prepared, the material of the embryo material is metal.
Fig. 7 is the embryo material schematic diagram that metal shell is prepared in the embodiment of the present invention；As shown in fig. 7, in the embodiment of the present invention,
The material of metal shell can be aluminium, almag, stainless steel etc., such as can be all kinds of 6 systems and 7 be aluminium.Specifically,
Original material can be cut according to the specification being pre-designed, form the embryo material 5 needed for manufacture metal shell, embryo material 5
The concrete specification can determine that the embodiment of the present invention does not limit this according to the specification of mobile terminal.
Step 102, protegulum is formed on the embryo material, the protegulum includes the interior of back-cover, center, back-cover and center formation
At least one day linear slit and connect with the center medial surface that corresponding position is set on chamber, the back-cover and/or center
And positioned at day linear slit two sides at least one protrusion.
It, can be according to the metal shell knot being pre-designed after embryo material 5 as shown in Figure 7 is obtained in the embodiment of the present invention
Structure is processed embryo material 5, obtains protegulum 6.
As shown in Figure 8 and Figure 9, which includes back-cover 1, center 2, back-cover 1 and the inner cavity of the formation of center 2, in center 2
On the protrusion 41 protruded to inner cavity and connect with 2 medial surface of center and protrusion 41 that be located at 3 two sides of day linear slit.
Specifically, can be fixed on embryo material 5 on process equipment by jig, such as can be CNC (computer digits
Control lathe, Computer numerical control) equipment, by CNC embryo material 5 according to processing procedure process drawing removal more than
Material forms protegulum 6 as shown in Figure 8 and Figure 9, such as can remove material by CNC Milling Process and form inner cavity and protrusion 41,
Then Milling Process goes out day linear slit 3.Certainly inner cavity is formed by casting after can also being melted by punching press or by embryo material 5
Afterwards, then by CNC Milling Process go out day linear slit 3, the embodiment of the present invention does not limit the mode for forming protegulum 6.
Step 103, at least one gear shaping slot is formed at least one protrusion, obtains grabbing plastic structure.
As shown in figure 9, after the protegulum 6 for obtaining metal shell, can according to the structure of gear shaping slot 42 being pre-designed,
The reserved material of the removal of protrusion 41 on protegulum 6, to form gear shaping slot 42 as shown in Figure 3, it is cementing to obtain grabbing for metal shell
Structure 4.The mode that reserved material is removed on protrusion 41 can be that Gear Shaping removes material, laser laser carving removes material, more
Axis CNC processing removal materials etc., the embodiment of the present invention does not limit the mode for forming gear shaping slot.
Step 104, at least one day linear slit and the plastic structure of grabbing are molded, obtain plastic cement and fill to described
The protegulum after the injection of plastic structure is grabbed described at least one day linear slit and cladding.
After the processing of plastic structure 4 is grabbed in completion on protegulum 6, plastic cement can be injected into day linear slit 3, while cladding grabs glue
Structure 4 so that fill plastic cement in day linear slit 3, the gear shaping slot 42 for grabbing plastic structure 4 also fills plastic cement.Specifically, it can will be formed
It grabs the protegulum 6 after plastic structure 4 to be positioned in injection mold, is inserts with protegulum 6, carry out insert injection moulding, the embryo after being molded
Shell.
Step 105, according to default face shaping, sharp processing is carried out to the protegulum after injection, obtains metal shell.
In the embodiment of the present invention, after the protegulum after being molded, it can be set according to the shape of mobile terminal, after injection
Protegulum carry out sharp processing, such as can be the portion of material for removing center, to be modified to appearance or to protegulum
Outer surface finished so that metal shell has more smooth outer surface or further carries out finishing to inner cavity
Work, knife mark when forming inner cavity with removal etc..
Step 106, the metal shell is surface-treated, obtains metal shell finished product.
In practical applications, in order to meet the various appearance requirements of user, table can be carried out to the outer surface of metal shell
Surface treatment, such as grinding and buffing is first carried out to metal shell surface, the tables such as anode, sandblasting, baking vanish, wire drawing are carried out after cleaning
Surface treatment so that metal shell has good appearance, obtains for mobile terminal metal shell finished product when assembled.
In the embodiment of the present invention, after the protegulum of metal shell is formed, it is only necessary to gear shaping slot is formed on protrusion, without inciting somebody to action
Metal shell, which is divided into multistage, drill etc. and to be molded again after processing, simplifies processing technology, reduces processing cost.
Figure 10 be the present invention a kind of metal shell preparation method embodiment two processing step flow chart, such as Figure 10
Shown, a kind of preparation method of metal shell of the embodiment of the present invention can be applied to prepare provided in an embodiment of the present invention one
The preparation of kind metal shell, the preparation method of the metal shell include：
Step 201, the embryo material of metal shell is prepared, the material of the embryo material is metal.
In the embodiment of the present invention, the material of metal shell can be aluminium, almag, stainless steel etc., such as can be each
6 system of class and 7 is aluminium, and step 201 can include following sub-step：
Sub-step S11 is squeezed or is forged and pressed to original metal embryo material.
In order to enable metal shell have good mechanical property and processing performance, can be to original metal embryo material at
Reason, for example, original metal embryo material can be squeezed or be forged and pressed, specifically, when material is aluminium material, it can be to original
Beginning aluminum material carries out the processing such as aluminium extrusion so that original metal embryo material is harder and fine and close, naturally it is also possible to original metal
Embryo material carries out the processing such as cold forging pressure or hot forging pressure so that original metal embryo material has good mechanical property and processing performance.
Sub-step S12 cuts the metal embryo material after the extruding or forging and stamping according to default specification, obtains described
The embryo material of metal shell.
As shown in fig. 7, original material can be cut, formation prepares metal shell according to the specification being pre-designed
Required embryo material 5, such as aluminium AL6063 is cut into a length of 180.0mm, width 90.0mm, the aluminium that thickness is 7.0mm specifications
Block can determine that the present invention is real to get the The concrete specification to embryo material 5 as shown in Figure 7, embryo material 5 according to the specification of mobile terminal
Example is applied not limit this.
Step 202, protegulum is formed on the embryo material, the protegulum includes the interior of back-cover, center, back-cover and center formation
At least one day linear slit and connect with the center medial surface that corresponding position is set on chamber, the back-cover and/or center
And positioned at day linear slit two sides at least one protrusion.
It as shown in Figure 8 and Figure 9,, can be according to setting in advance after embryo material 5 as shown in Figure 7 is obtained in the embodiment of the present invention
The metal shell structure of meter is processed embryo material 5, obtains protegulum 6, and specifically, step 202 can include following sub-step：
Sub-step S21, by punching press and/or CNC processing technologys, formed on embryo material the back-cover, center, back-cover and in
The inner cavity of frame formation, at least one protrusion being connect with the medial surface of the center.
In practical applications, embryo material 5 can be positioned in stamping die, cold stamping or drop stamping be carried out, in embryo
Back-cover 1, center 2, back-cover 1 and the inner cavity of the formation of center 2, the protrusion 41 being connect with the medial surface of center 2 etc. are formed on material 5
Deng or embryo material 5 is fixed on by jig in CNC equipment, according to layout design, clout is removed by CNC equipment, in embryo
Back-cover 1, center 2, back-cover 1 and the inner cavity of the formation of center 2, the protrusion 41 being connect with the medial surface of center 2 etc. are formed on material 5
Deng or first pass through the inner cavity that Sheet Metal Forming Technology forms back-cover 1 on embryo material 5, center 2, back-cover 1 and center 2 are formed, then
Processed by CNC equipment to be formed protrusion 41 or can also be by carried out after embryo material 5 is melted casting formed back-cover 1, in
Frame 2, the inner cavity that back-cover 1 and center 2 are formed, the protrusion 41 being connect with the medial surface of center 2 etc..
Sub-step S22 by CNC processing technologys, forms at least one of corresponding position on the back-cover and/or center
Its linear slit obtains the protegulum.
In the embodiment of the present invention, can scheduled material be removed in back-cover 1 and center 2 using milling cutter by CNC equipment
Material forms at least one day linear slit 3, obtains protegulum 6.
Step 203, the protegulum is fixed on by jig in gear shaping equipment.
After protegulum 6 is obtained, need to form gear shaping slot 42 as shown in Figure 3 on the protrusion 41 of protegulum 6, obtain grabbing glue
Structure 4 in embodiments of the present invention, can form gear shaping slot, it is therefore desirable to will by Gear Shaping technique on protrusion 41
Protegulum 6 is fixed on by jig in gear shaping equipment, specifically, protegulum 6 can be put on gear shapping machine jig, passes through gear shapping machine
Protegulum 6 is fixed in gear shaping equipment by jig.
Step 204, the clout of at least one protrusion is removed to form the gear shaping slot using pinion cutter, obtains institute
It states and grabs plastic structure.
As shown in figure 11, it is a kind of pinion cutter 8 of the embodiment of the present invention, which includes knife bar 81 and blade 82.Its
The shape of middle blade 82 is adapted with the shape of gear shaping slot 42 that needs are processed, i.e., is adapted with the gear shaping slot 42 in Fig. 4, Fig. 5.
Such as gear shaping equipment can be the mhi SE15A of Mitsubishi, the diameter of pinion cutter 8 can be 3mm, edge length
For 0.7mm, the pinion cutter of height 2.1mm, pinion cutter 8 can be W18Cr4V wolfram steel pinion cutters, can be set in Gear Shaping
Feed speed is 60m/min, and in processing, pinion cutter 8 is located at the side that protrusion 41 is not connect with center 2, then to center 2
Direction is fed, and gear shaping slot 42 is formed on protrusion 41, is not limited by the processing space of mobile terminal thickness direction.
Certainly, in practical applications, those skilled in the art can select different gear shapings according to different gear shaping flowing current separation and set
Standby and pinion cutter carries out Gear Shaping, and the embodiment of the present invention does not limit the specification of gear shaping equipment and pinion cutter.
In the embodiment of the present invention, Gear Shaping can be processed such as the gear shaping slot 42 in Fig. 4 and Fig. 5, you can to process
With certain taper, such as in the trapezoidal gear shaping slot of mobile terminal thickness direction, solves situation about being limited in protegulum space
Under, the problem of common CNC can not process the gear shaping slot with taper so that can be processed on metal shell with certain cone
The gear shaping slot of degree increases metal shell and grabs glue surface product with plastic cement, improves the binding force between metal shell and plastic cement.
In one preferred embodiment of the invention, drainage can also be formed on protrusion 41 by CNC processing technologys
Hole 43, mobility of the plastic cement in plastic structure 4 is grabbed when being molded with improving, while improve grab plastic structure 4 and plastic cement grab glue ability.
Step 205, at least one day linear slit and the plastic structure of grabbing are molded, obtain plastic cement and fill to described
The protegulum after the injection of plastic structure is grabbed described at least one day linear slit and cladding.
In embodiments of the present invention, step 205 can include following sub-step：
Sub-step S31 grabs plastic structure and at least one day linear slit progress metal-surface nano processing to described.
In order to improve the binding force of metal surface and plastic cement, nanosizing processing can be carried out to metal surface so that metal
Surface forms nano level honeycomb shape, such as protegulum can be positioned in chemical agent so that metal surface forms nanometer
The hole of grade, and the substance that can be reacted with plastic cement is remained in nano level hole, for example, can be existed by acid solution
Metal surface forms nano level hole, then impregnates metal surface by the solution (such as T liquid) containing amine, amine stays after drying
In nanoscale hole hole, when injection, the fat in plastic cement is reacted with the amine in nano level hole, the two fusion displacement so that
Plastic cement can be entered in nano level hole, improve the binding force of plastic cement and metal surface.
Nanosizing treated protegulum is carried out nanometer injection so that plastic cement is filled to described at least one by sub-step S32
Plastic structure is grabbed described in its linear slit and cladding, the protegulum after being molded.
After the metal surface metal nano processing to protegulum, nanometer injection, such as plastic material can be carried out to protegulum
It for PPS or PBT+30%F, can be molded protegulum as inserts so that PPS or PBT+30%F fill antennas stitch and packet
It covers and grabs plastic structure.
For example, carrying out nanometer injection, firing rate 280mm/sec, pressure are set>2000kgf/mm2, material temperature is 260 DEG C, mould
Temperature is 150 DEG C, and annealing temperature is 140-150 DEG C, so that plastic cement has good mobility in a mold so that plastic cement can
It is sufficiently filled to day linear slit and cladding grabs plastic structure.
In the embodiment of the present invention, nanometered disposal can be carried out to the metal surface for grabbing glue, then carry out nanometer injection, it can be with
The binding ability for grabbing plastic structure and plastic cement is further improved, improves the structural strength of metal shell.
Step 206, according to default face shaping, sharp processing is carried out to the protegulum after injection, obtains metal shell.
In the embodiment of the present invention, after the protegulum after being molded, it can be set according to the shape of mobile terminal, after injection
Protegulum carry out sharp processing, such as can be the portion of material for removing center, to be modified to appearance or to protegulum
Outer surface finished so that metal shell has more smooth outer surface or further carries out finishing to inner cavity
Work, knife mark when forming inner cavity with removal etc..
Step 207, the metal shell is surface-treated, obtains metal shell finished product.
In embodiments of the present invention, step 207 can include following sub-step：
Sub-step S41 carries out grinding and buffing to the metal shell, to remove CNC processing knife marks.
In the embodiment of the present invention, after the completion of machining, in order to enable sequent surface processing can be smoothed out and carry
High product yield can carry out grinding and buffing to the appearance surfaces of metal shell, and the tool marks left when being processed with removal obtain
Good appearance surfaces for example, 1000# Sponge sand papers corase grinding can be first passed through, reuse scouring pad and are polished, remove CNC
Process knife mark.
Sub-step S42 cleans the metal shell after grinding and buffing.
In practical applications, before final surface treatment is carried out, in order to not influence the effect of final surface treatment
And yield, the dust to appearance surfaces, greasy dirt or other solvents is needed to clean, such as can surpass to metal shell
Sound cleaning, aqueous slkali degreasing etc..
Sub-step S43 carries out the metal shell after cleaning in anode or sandblasting either baking vanish or wire drawing or bloom table
Surface treatment obtains the metal shell finished product.
In practical applications, in order to meet the various appearance requirements of user, anode can be carried out after cleaning, sandblasting, is baked
The surface treatments such as paint, wire drawing or bloom so that metal shell has good appearance, obtains when assembled for mobile terminal
Metal shell finished product.
In the embodiment of the present invention, after the protegulum of metal shell is formed, formed by Gear Shaping technique in protrusion slotting
Tooth socket, drill etc. without metal shell is divided into multistage is molded again after processing, simplifies processing technology, reduces
Processing cost, further, Gear Shaping can be formed with certain taper, such as trapezoidal in mobile terminal thickness direction
Gear shaping slot increases metal shell and grabs glue surface product with plastic cement, improves the binding force between metal shell and plastic cement.
Figure 12 be the present invention a kind of metal shell preparation method embodiment three processing step flow chart, such as Figure 12
Shown, a kind of preparation method of metal shell of the embodiment of the present invention can be applied to a kind of gold provided in an embodiment of the present invention
Belong to the preparation of shell, the preparation method of the metal shell includes：
Step 301, the embryo material of metal shell is prepared, the material of the embryo material is metal.
In the embodiment of the present invention, the material of metal shell can be aluminium, almag, stainless steel etc., such as can be each
6 system of class and 7 is aluminium.Specifically, original material can be cut according to the specification being pre-designed, form manufacture gold
Belong to the embryo material needed for shell, such as it is 7.0mm specifications that aluminium AL6063 is cut into a length of 180.0mm, width 90.0mm, thickness
Aluminium block to get to embryo material 5 as shown in Figure 1, The concrete specification can be determined according to the specification of mobile terminal, the embodiment of the present invention
This is not limited.
Step 302, protegulum is formed on the embryo material, the protegulum includes the interior of back-cover, center, back-cover and center formation
At least one day linear slit and connect with the center medial surface that corresponding position is set on chamber, the back-cover and/or center
And positioned at least one protrusion of day linear slit two sides.
It, can be according to the metal shell knot being pre-designed after embryo material 5 as shown in Figure 7 is obtained in the embodiment of the present invention
Structure is processed embryo material 5, obtains protegulum 6.
As shown in Figure 8 and Figure 9, which includes inner cavity and the center 2 that back-cover 1, center 2, back-cover 1 and center 2 are formed
The protrusion 41 of medial surface connection and back-cover 1 and/or center 2 on the setting of corresponding position at least one day linear slit 3.
Specifically, can be fixed on embryo material 5 on process equipment by jig, such as can be CNC (computer digits
Control lathe, Computer numerical control) equipment, by CNC embryo material 5 according to processing procedure process drawing removal more than
Material forms protegulum 6 as shown in Figure 8 and Figure 9, such as can remove material by CNC Milling Process and form inner cavity and protrusion 41,
Then Milling Process goes out day linear slit 3.Certainly inner cavity is formed by casting after can also being melted by punching press or by embryo material 5
Afterwards, then by CNC Milling Process go out day linear slit 3, the embodiment of the present invention does not limit the mode for forming protegulum 6.
Step 303, the protegulum is fixed on by jig in laser laser carving equipment.
After protegulum 6 is obtained, need to form gear shaping slot as shown in Figure 3 on the protrusion 41 of protegulum 6, obtain grabbing cementing
Structure 4 in embodiments of the present invention, can form gear shaping slot by laser laser carving processing technology on protrusion 41.
Laser laser carving is to generate laser by the laser head of laser laser carving equipment, to cut off the material on part, laser head
Part material can be cut from different directions, it is therefore desirable to which protegulum 6 is fixed on laser laser carving equipment by jig
On.
Step 304, laser laser carving is carried out at least one protrusion and forms the gear shaping slot to remove clout, obtained
It is described to grab plastic structure.
In laser laser carving, can according to the shape of preset gear shaping slot, the removal on protrusion 41 it is anticipated that obtain as
Gear shaping slot 42 shown in Fig. 4 and Fig. 5, such as the laser carving power of setting laser carving equipment is 45 watts, laser carving speed is 100mm/s with convex
Go out laser carving in portion 41 and go out gear shaping slot 42.Power and laser carving speed can be set according to the material of metal shell, and the present invention is implemented
Example does not limit this.
In the embodiment of the present invention, the processing of laser laser carving can be processed such as the gear shaping slot 42 in Fig. 4 and Fig. 5, you can to add
Work has provided certain taper, such as in the trapezoidal gear shaping slot of mobile terminal thickness direction, solves what is limited in protegulum space
In the case of, the problem of common CNC can not process the gear shaping slot with taper so that can be processed with one on metal shell
Determine the gear shaping slot of taper, increase metal shell and grab glue surface product with plastic cement, improve the binding force between metal shell and plastic cement.
Step 305, at least one day linear slit and the plastic structure of grabbing are molded, obtain plastic cement and fill to described
The protegulum after the injection of plastic structure is grabbed described at least one day linear slit and cladding.
After the processing of plastic structure 4 is grabbed in completion on protegulum 6, plastic cement can be injected into day linear slit 3, while cladding grabs glue
Structure 4 so that fill plastic cement in day linear slit 3, the gear shaping slot 42 for grabbing plastic structure 4 also fills plastic cement.Specifically, it can will be formed
It grabs the protegulum 6 after plastic structure 4 to be positioned in injection mold, is inserts with protegulum 6, carry out insert injection moulding, the embryo after being molded
Shell.
Step 306, according to default face shaping, sharp processing is carried out to the protegulum after injection, obtains metal shell.
In the embodiment of the present invention, after the protegulum after being molded, it can be set according to the shape of mobile terminal, after injection
Protegulum carry out sharp processing, such as can be the portion of material for removing center, to be modified to appearance or to protegulum
Outer surface finished so that metal shell has more smooth outer surface or further carries out finishing to inner cavity
Work, knife mark when forming inner cavity with removal etc..
Step 307, the metal shell is surface-treated, obtains metal shell finished product.
In practical applications, in order to meet the various appearance requirements of user, table can be carried out to the outer surface of metal shell
Surface treatment, such as grinding and buffing is first carried out to metal shell surface, the tables such as anode, sandblasting, baking vanish, wire drawing are carried out after cleaning
Surface treatment so that metal shell has good appearance, obtains for mobile terminal metal shell finished product when assembled.
In the embodiment of the present invention, after the protegulum of metal shell is formed, by laser laser carving processing technology in protrusion shape
Into gear shaping slot, drill etc. without metal shell is divided into multistage is molded again after processing, simplifies processing technology, drops
Low processing cost, further, the processing of laser laser carving can be formed with certain taper, such as in mobile terminal thickness direction
Trapezoidal gear shaping slot increases metal shell and grabs glue surface product with plastic cement, improves the binding force between metal shell and plastic cement.
Although the preferred embodiment of the embodiment of the present invention has been described, those skilled in the art once know base
This creative concept can then make these embodiments other change and modification.So appended claims are intended to be construed to
Including preferred embodiment and fall into all change and modification of range of embodiment of the invention.
Finally, it is to be noted that, herein, term " comprising ", "comprising" or its any other variant are intended to
Cover non-exclusive inclusion, so that process, method, article or terminal device including a series of elements not only include
Those elements, but also including other elements that are not explicitly listed or further include for this process, method, article or
The intrinsic element of person's terminal device.In the absence of more restrictions, the element limited by sentence "including a ...",
It is not precluded in the process including the element, method, article or terminal device that also there are other identical elements.
The above description is merely a specific embodiment, but protection scope of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in change or replacement, should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (13)
1. a kind of metal shell, applied to mobile terminal, which is characterized in that back-cover and center including metal material, the back of the body
Lid connects the inner cavity to form metal shell with the center, and corresponding position is provided at least one in the back-cover and/or center
Strip antenna stitches, and the medial surface of the center and is respectively arranged at the position on day linear slit both sides and grabs plastic structure, described to grab plastic structure
It is provided with gear shaping slot.
2. metal shell according to claim 1, which is characterized in that the plastic structure of grabbing includes and the center medial surface
At least one protrusion of connection, at least one protrusion are provided at least one gear shaping slot, at least one gear shaping
Slot is located at least one protrusion far from described center one end；
Opening width size of the gear shaping slot far from center one end is greater than or equal to the opening width size close to center one end.
3. metal shell according to claim 2, which is characterized in that at least one protrusion hangs down with the center
Directly, and in the mobile terminal thickness direction arranged, width dimensions of the gear shaping slot close to the back-cover side are more than
Width dimensions far from the back-cover side.
4. metal shell according to claim 2, which is characterized in that be provided with drainage at least one protrusion
Hole.
5. a kind of mobile terminal, which is characterized in that the mobile terminal is included as outside claim 1-4 any one of them metals
Shell.
6. a kind of preparation method of metal shell, which is characterized in that including：
Prepare the embryo material of metal shell；
Protegulum is formed on the embryo material, the protegulum includes inner cavity, the back-cover that back-cover, center, back-cover and center are formed
And/or at least one day linear slit of corresponding position setting and connect with the center medial surface on center and be located at antenna
Stitch at least one protrusion of two sides；
At least one gear shaping slot is formed at least one protrusion, obtains grabbing plastic structure；
At least one day linear slit and the plastic structure of grabbing are molded, plastic cement is obtained and fills at least one antenna
The protegulum after the injection of plastic structure is grabbed described in seam and cladding；
According to default face shaping, sharp processing is carried out to the protegulum after injection, obtains metal shell；
The metal shell is surface-treated, obtains metal shell finished product.
7. preparation method according to claim 6, which is characterized in that it is described prepare metal shell embryo material the step of wrap
It includes：
Original metal embryo material is squeezed or forged and pressed；
Metal embryo material after the extruding or forging and stamping according to default specification is cut, obtains the embryo of the metal shell
Material.
8. the preparation method described according to claim 6 or 7, which is characterized in that the step that protegulum is formed on the embryo material
Suddenly include：
By punching press and/or CNC processing technologys, formed on the embryo material in the back-cover, center, back-cover and center formation
Chamber, at least one protrusion being connect with the center medial surface；
By CNC processing technologys, at least one day linear slit at corresponding position on the back-cover and/or center is formed, obtains institute
State protegulum.
9. preparation method according to claim 6, which is characterized in that it is described formed at least one protrusion to
The step of lacking a gear shaping slot, obtaining grabbing plastic structure includes：
The protegulum is fixed on by jig in gear shaping equipment；
The clout of at least one protrusion is removed to form the gear shaping slot using pinion cutter, obtains described grabbing plastic structure.
10. preparation method according to claim 6, which is characterized in that described to be formed at least one protrusion
At least one gear shaping slot, the step of obtaining grabbing plastic structure, include：
The protegulum is fixed on by jig in laser laser carving equipment；
Laser laser carving is carried out at least one protrusion and forms the gear shaping slot to remove clout, obtain it is described grab it is cementing
Structure.
11. preparation method according to claim 9 or 10, which is characterized in that form institute at least one protrusion
After stating at least one gear shaping slot, further include：
Conduction hole is formed at least one protrusion.
12. preparation method according to claim 11, which is characterized in that described at least one day linear slit and described
It grabs plastic structure to be molded, obtains plastic cement and fill to the injection that plastic structure is grabbed described at least one day linear slit and cladding
The step of protegulum, includes：
Plastic structure and at least one day linear slit progress metal-surface nano processing are grabbed to described；
Nanosizing treated protegulum is subjected to nanometer injection so that plastic cement is filled at least one day linear slit and cladding institute
It states and grabs plastic structure, the protegulum after being molded.
13. the preparation method described according to claim 6 or 7 or 9 or 10, which is characterized in that it is described to the metal shell into
The step of going and be surface-treated, obtaining metal shell finished product includes：
Grinding and buffing is carried out to the metal shell, to remove CNC processing knife marks；
Metal shell after grinding and buffing is cleaned；
Anode or sandblasting either baking vanish or wire drawing or high finish surface processing are carried out to the metal shell after cleaning, is obtained described
Metal shell finished product.
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| CN201711243206.7A CN108174541A (en) | 2017-11-30 | 2017-11-30 | A kind of metal shell and preparation method thereof, mobile terminal |
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|---|---|---|---|
| CN201711243206.7A CN108174541A (en) | 2017-11-30 | 2017-11-30 | A kind of metal shell and preparation method thereof, mobile terminal |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396747A (en) * | 2018-12-25 | 2019-03-01 | 广东长盈精密技术有限公司 | A kind of work pieces process technique |
| CN109663223A (en) * | 2019-01-10 | 2019-04-23 | 余柳霏 | A kind of positioning marked ruler for head positioning in radiation therapy |
| CN110459872A (en) * | 2019-08-19 | 2019-11-15 | Oppo广东移动通信有限公司 | Housing unit and electronic equipment |
| CN110492233A (en) * | 2019-08-19 | 2019-11-22 | Oppo（重庆）智能科技有限公司 | Housing unit and electronic equipment |
| CN110534898A (en) * | 2019-08-19 | 2019-12-03 | Oppo（重庆）智能科技有限公司 | Housing unit and electronic equipment |
| CN110662379A (en) * | 2018-06-28 | 2020-01-07 | 华为机器有限公司 | Shell of terminal |
| CN110831361A (en) * | 2018-08-14 | 2020-02-21 | 富智康精密电子（廊坊）有限公司 | Shell, manufacturing method of shell and electronic device |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257937A (en) * | 2016-04-29 | 2016-12-28 | 歌尔股份有限公司 | A kind of sound-producing device and the preparation method of metal plastic part |
| CN106462199A (en) * | 2016-09-30 | 2017-02-22 | 北京小米移动软件有限公司 | Metal shell manufacturing method and metal shell, electronic equipment |
| CN206472168U (en) * | 2017-02-06 | 2017-09-05 | 广东欧珀移动通信有限公司 | Shell and terminal for terminal |
| CN107205326A (en) * | 2017-07-10 | 2017-09-26 | 北京小米移动软件有限公司 | Casting of electronic device and center |
-
2017
- 2017-11-30 CN CN201711243206.7A patent/CN108174541A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106257937A (en) * | 2016-04-29 | 2016-12-28 | 歌尔股份有限公司 | A kind of sound-producing device and the preparation method of metal plastic part |
| CN106462199A (en) * | 2016-09-30 | 2017-02-22 | 北京小米移动软件有限公司 | Metal shell manufacturing method and metal shell, electronic equipment |
| CN206472168U (en) * | 2017-02-06 | 2017-09-05 | 广东欧珀移动通信有限公司 | Shell and terminal for terminal |
| CN107205326A (en) * | 2017-07-10 | 2017-09-26 | 北京小米移动软件有限公司 | Casting of electronic device and center |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110662379A (en) * | 2018-06-28 | 2020-01-07 | 华为机器有限公司 | Shell of terminal |
| CN110831361A (en) * | 2018-08-14 | 2020-02-21 | 富智康精密电子（廊坊）有限公司 | Shell, manufacturing method of shell and electronic device |
| CN109396747A (en) * | 2018-12-25 | 2019-03-01 | 广东长盈精密技术有限公司 | A kind of work pieces process technique |
| CN109663223A (en) * | 2019-01-10 | 2019-04-23 | 余柳霏 | A kind of positioning marked ruler for head positioning in radiation therapy |
| CN110492233A (en) * | 2019-08-19 | 2019-11-22 | Oppo（重庆）智能科技有限公司 | Housing unit and electronic equipment |
| CN110534898A (en) * | 2019-08-19 | 2019-12-03 | Oppo（重庆）智能科技有限公司 | Housing unit and electronic equipment |
| CN110459872A (en) * | 2019-08-19 | 2019-11-15 | Oppo广东移动通信有限公司 | Housing unit and electronic equipment |
| WO2021031870A1 (en) * | 2019-08-19 | 2021-02-25 | Oppo广东移动通信有限公司 | Housing assembly and electronic device |
| CN110459872B (en) * | 2019-08-19 | 2021-07-16 | Oppo广东移动通信有限公司 | Shell assembly and electronic equipment |
| CN110492233B (en) * | 2019-08-19 | 2021-07-20 | Oppo（重庆）智能科技有限公司 | Shell assembly and electronic equipment |
| US12027757B2 (en) | 2019-08-19 | 2024-07-02 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Housing assembly and electronic device |
| WO2022177416A1 (en) * | 2021-02-16 | 2022-08-25 | 삼성전자 주식회사 | Electronic device including impact resistance-reinforcing structure |
| CN113270760A (en) * | 2021-07-19 | 2021-08-17 | 信维通信（江苏）有限公司 | Stamping drawing part in double-path radio frequency signal coaxial connector |
| CN113270760B (en) * | 2021-07-19 | 2021-10-01 | 信维通信（江苏）有限公司 | Stamping drawing part in double-path radio frequency signal coaxial connector |
| CN114464982A (en) * | 2021-08-11 | 2022-05-10 | 荣耀终端有限公司 | Electronic equipment and manufacturing method of middle frame thereof |
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Application publication date: 20180615 |