CN105234630B - A kind of metal frame section and its processing method - Google Patents

A kind of metal frame section and its processing method Download PDF

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Publication number
CN105234630B
CN105234630B CN201510632683.7A CN201510632683A CN105234630B CN 105234630 B CN105234630 B CN 105234630B CN 201510632683 A CN201510632683 A CN 201510632683A CN 105234630 B CN105234630 B CN 105234630B
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CN
China
Prior art keywords
metal frame
groove
processing
medial
metallic support
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Expired - Fee Related
Application number
CN201510632683.7A
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Chinese (zh)
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CN105234630A (en
Inventor
石永博
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Shenzhen Tinno Wireless Technology Co Ltd
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Shenzhen Tinno Wireless Technology Co Ltd
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Priority to CN201510632683.7A priority Critical patent/CN105234630B/en
Publication of CN105234630A publication Critical patent/CN105234630A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00Constructional details common to different types of electric apparatus
    • H05K7/18Construction of rack or frame

Abstract

The invention discloses a kind of metal frame section and its processing method, wherein, the processing of metal frame section is that the groove of back-off structure is formed by being processed to the medial surface of metal frame section, the A/F of groove is less than bottom width, and the A/F of groove can adjust as needed, metallic support is placed in groove and carries out die casting, so that metallic support can combine closely and is not easily disconnected from metal frame section after die casting.In addition, be initially formed metal frame section, then die-cast metal support mode can one-shot forming product major part inner structural features, shorten the production cycle, reduce production cost.

Description

A kind of metal frame section and its processing method
Technical field
The present invention relates to communication products technical field, more particularly to a kind of metal frame section and its processing method.
Background technology
Aluminium alloy is due to the diversified and good heat conductivity of light weight, high intensity, high rigidity, surface treatment mode The advantages that be developed the housing that business is widely adopted as 3C electronic products.
But in current industry, all by CNC, (English is for the metal appearance parts of 3C electronic products:Computer numerical control;Chinese is:Computer digital control machine tool) mechanical processing technique realizes technical scheme, its machinery plus Work technique process is more, the cycle is long, waste of raw materials is big, and yield rate is low, and manufacturing cost is expensive.And the full casting forming technique of aluminium alloy The defects of compactness pore be present so that product surface sand hole problem when doing high smooth surface and anode is difficult to solve.It is also, existing After complete machine, intermediate support easily departs from the product of technology with aluminium frame.
The content of the invention
The present invention provides a kind of metal frame section and its processing method so that metallic support can be brought into close contact in gold after die casting Category frame section is not easily disconnected from.
An aspect of of the present present invention provides a kind of processing method of metal frame section, and it includes producing metal frame section, The medial surface of metal frame section processes the first groove with rectangular parallelepiped structure, using crowded type knife the first groove opening Extruded, to form the second groove with back-off structure in the medial surface of metal frame section, metallic support is placed in second In groove, die casting is carried out to the metal frame section that metallic support is built-in with the second groove using die casting so that metal branch Frame is combined closely in the medial surface of metal frame section, and can one-shot forming product major part inner structural features,.
Wherein, the step of producing metal frame section includes:Metal frame section is produced using aluminium extrusion technique.
Wherein, the step of producing metal frame section includes:Metal frame section is produced using machining.
Wherein, include the step of the medial surface of metal frame section processes the first groove with rectangular parallelepiped structure:Adopt Milling is carried out to the medial surface of metal frame section with T-shaped knife, milled out with the medial surface in metal frame section with cuboid knot First groove of structure, wherein the depth of the first groove is the milling depth of T-shaped knife.
Wherein, extruded in the opening of the first groove using crowded type knife, formed with the medial surface in metal frame section The step of the second groove with back-off structure, includes:Rotary squeezing is carried out using opening of the crowded type knife in the first groove, with The lateral surface of material toward the metal frame section of the first inside grooves opening is set to extrude to form the second groove with back-off structure.
Wherein, the width of the opening of the second groove is less than the width of bottom.
Wherein, processing method also includes:Metallic support is machined, with metallic support formed feed position and Discharge groove.
Wherein, processing method also includes:T processing, nanometer injection and laser carving are carried out to metal frame section.
Wherein, above-mentioned metal frame section is aluminium frame section.
Another aspect of the present invention provides a kind of metal frame section, and the medial surface of metal frame section, which is formed, has back-off structure The second groove, the second groove be used for place metallic support so that using die casting to being built-in with metal branch in the second groove After the metal frame section of frame carries out die casting, metallic support is combined closely in the medial surface of metal frame section, and can once into Type product major part inner structural features, wherein the width of the opening of the second groove is less than the width of bottom.
By such scheme, the beneficial effects of the invention are as follows:Prior art is different from, metal frame section of the invention is logical The medial surface crossed in metal frame section processes the groove of back-off structure, and further metallic support is placed in groove and pressed Casting, so that the medial surface that die-cast metal support is combined closely in metal frame section is not easily disconnected from, and pass through metallic support Be placed in the groove of metal frame section carry out die casting mode can one-shot forming product most of inner structural features, shorten In the cycle of product, manufacturing cost is reduced, while realize outward appearance treatment effect more more preferable than pure die casting and yields.
Brief description of the drawings
, below will be to needed for embodiment description in order to illustrate more clearly of the technical scheme in embodiment of the present invention The accompanying drawing to be used is briefly described, it should be apparent that, drawings in the following description are only some embodiment party of the present invention Formula, for those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings Obtain other accompanying drawings.Wherein:
Fig. 1 is the schematic flow sheet of the embodiment of the processing method of metal frame section of the present invention;
Fig. 2 is the structural representation of the metal frame section in Fig. 1;
Fig. 3 A are sectional view of the metal frame section along A-A ' in Fig. 2;;
Fig. 3 B are the schematic diagrames of the groove of metal frame shape extrusion first in Fig. 2;
Fig. 3 C are sectional views of Fig. 3 B along B-B ';
Fig. 3 D are the schematic diagrames of the groove of metal frame shape extrusion second in Fig. 2;
Fig. 3 E are sectional views of Fig. 3 D along C-C ';
Fig. 3 F are the schematic diagrames of the second groove that metal frame shape extrusion obtains in Fig. 2;
Fig. 3 G are sectional views of Fig. 3 F along D-D ';
Fig. 4 is the structural representation that the metal frame shape extrusion in Fig. 1 goes out after the second groove;
Fig. 5 is that the metal frame section in Fig. 1 carries out the structural representation after die casting;
Fig. 6 is the structural representation of PROCESS FOR TREATMENT after the metal frame section in Fig. 1 is carried out;
Fig. 7 is that the mould of the present invention is nested with the die casting scheme process chart of aluminium alloy.
Embodiment
Below in conjunction with the accompanying drawing in embodiment of the present invention, the technical scheme in embodiment of the present invention is carried out clear Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of the present invention, rather than is all implemented Mode.Based on the embodiment in the present invention, those of ordinary skill in the art institute under the premise of performing creative labour is not made The every other embodiment obtained, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 is the schematic flow sheet of the embodiment of the processing method of metal frame section of the present invention.Such as Fig. 1 Shown, the processing method of metal frame section includes:
S11:Produce metal frame section.
Fig. 2 and Fig. 3 A are refer to, Fig. 2 is the structural representation of the metal frame section in Fig. 1, and Fig. 3 A are metal frames in Fig. 2 Sectional view of the section bar along A-A '.Wherein, as shown in fig. 2 and fig. 3 a, the metal frame section 1 produced can be used as mobile phone, IPad etc. The metal edge frame of electronic product.In the present embodiment, metal frame section 1 can be by way of aluminium extruded technique or machining Sheet metal is processed obtained.The material of metal frame section 1 includes but is not limited to for aluminium alloy, stainless steel, titanium alloy etc. Metal material.It is preferably aluminium frame section in present embodiment, because aluminium alloy has in light weight, high temperature resistant, attractive in appearance, metal-like The performance characteristics such as strong.
Wherein, aluminium extruded technique refers to the aluminium of hot mastication flowing through aluminium extruded type mould under the strength extruding of aluminium extruding machine Tool, shapes satisfactory aluminium profile product, present embodiment refers to is squeezed into metal frame-type by aluminium extruded mould by sheet metal Material 1.If it is that sheet metal will be processed by plant equipment, make it using machining manufacture metal frame section 1 Appearance and size meets the requirements, form metal frame section 1.
S12:The first groove with rectangular parallelepiped structure is processed in the medial surface of metal frame section.
Please together referring to Fig. 3 B to Fig. 3 C, wherein, Fig. 3 B are the schematic diagrames of the groove of metal frame shape extrusion first in Fig. 2, Fig. 3 C are sectional views of Fig. 3 B along B-B '.Milling is carried out to the medial surface of metal frame section 1 using T-shaped knife 12, so as in metal The medial surface of frame section 1 mills out the first groove 11 with rectangular parallelepiped structure.Wherein, T-shaped knife 12 be one kind be assemblied in milling machine, It is used for the T-shaped groove of milling workpiece, the cutter of lateral grooves on CNC or numerical control device.T-shaped knife, which is called, does T-shaped milling cutter, half circular milling Knife, cotter mill cutter, it can perfectly process T-shaped groove, lateral grooves.Wherein, the depth of the first groove 11 is the milling of T-shaped knife 12 Depth is cut, as shown in Figure 3 C, the depth d of the first groove 11 is the depth of the T-shaped milling of knife 12, and the width b of the first groove 11 is T-shaped The width of the milling of knife 12.
S13:Extruded in the opening of the first groove using crowded type knife, had to be formed in the medial surface of metal frame section There is the second groove of back-off structure.
Referring to Fig. 3 D and Fig. 3 E, Fig. 3 D it is together please the schematic diagram of the groove of metal frame shape extrusion second in Fig. 2, Fig. 3 E are Sectional views of Fig. 3 D along C-C '.Wherein, rotary squeezing is carried out using opening of the crowded type knife 13 in the first groove 11 so that first The lateral surface of the material of the inside opening of groove 11 toward metal frame section 1 is extruded so as to form down the second groove 14 of buckle-like structure. As shown in FIGURE 3 E, rotary squeezing is carried out using opening of the crowded type knife 13 in the first groove 11 so that the first groove 11 opening two The material of side moves toward the clearance position of opening, so that the width of the opening of the first groove 11 diminishes and forms back-off structure The second groove 14.
Wherein, structure of the structure similar to existing burnishing-in knife, rolling depression cutter of type knife 13 is squeezed, it utilizes the original of mechanical presses Reason, metal surface processing can be made bright and clean, and extruding can also be carried out to make flow of metal to form certain structure.
Be that metal frame shape extrusion obtains in Fig. 2 referring to Fig. 3 F and Fig. 3 G, Fig. 3 F together incorporated by reference to Fig. 3 D and Fig. 3 E The schematic diagram of two grooves, Fig. 3 G are sectional views of Fig. 3 F along D-D '.As shown in Fig. 3 F and Fig. 3 G, obtained second groove 14 is Buckle structure, the A/F of the second groove 14 are a, bottom width b, wherein, the width a of opening is less than the width b of bottom, and And the width b and A/F a of bottom difference are c.In the present embodiment, can be squeezed by adjusting type knife 13 extruding dynamics, The factors such as direction, time and adjust the A/F a of the second groove 14 so that bottom width b and A/F a difference c Also change because of the width a of opening change.Wherein, the bottom width of the second groove 14 is the bottom width b of the first groove, Bottom width b is the width of the T-shaped milling of knife 12.
Fig. 4 is refer to, Fig. 4 is the structural representation force that the metal frame shape extrusion in Fig. 1 spendes after the second groove.Wherein, exist Depending on the medial surface of metal frame section 1 forms the position of the second groove 14, number is visually actually needed.Shown in Fig. 4 is in gold Belong to the length direction of the inner side corner location of frame section 1 and width forms the second groove 14 of a back-off structure respectively.
In other embodiments, those skilled in the art can also be by the above method in the inner side of metal frame section 1 Face processes the first groove 11 of other shapes structure, such as carries out milling to the medial surface of metal frame section 1 by T-shaped knife 12 Processing, to form first groove 11 of the bottom as circle, the bottom width b of circular a diameter of first groove.T can also be used First groove 11 is processed into the structure that bottom is irregular shape by type knife.Therefore, different structure is milled out using T-shaped knife 12 The first groove 11.And the material for the both sides that are further open to the first groove 11 by squeezing type knife 13 carries out rotary squeezing, makes the The material of one groove 11 opening both sides extrudes movement toward the position that the first groove 11 is open, and becomes the width that the first groove 11 is open Small, so as to form the second groove 14 of back-off structure, i.e. the bottom shape of the second groove 14 can be arranged as required to as difference Shape.
S14:Metallic support is placed in the second groove, using die casting to being built-in with metallic support in the second groove Metal frame section carries out die casting.
Fig. 5 is refer to, Fig. 5 is that the metal frame section in Fig. 1 carries out the structural representation after die casting.By metallic support (figure Do not show) it is arranged in the second groove 14, further using die casting (not shown) to being built-in with metal branch in the second groove 14 The metal frame section 1 of frame carries out die casting, so that metallic support is combined closely in the medial surface of metal frame section 1, such as Fig. 5 institutes Show.Also, metallic support is placed in the second groove 14 and carries out die casting, can one-shot forming product major part inner structural features, By the way of being processed using full CNC, die cast internal junction is carried out by the way that metallic support is placed in the second groove 14 Structure feature, the production cycle can be shortened, reduce production cost.
S15:Metallic support is machined, to form feed position and discharge groove on metallic support.
S16:T processing, nanometer injection and laser carving are carried out to metal frame section.
Fig. 6 is refer to, Fig. 6 is the structural representation of PROCESS FOR TREATMENT after the metal frame section in Fig. 1 is carried out.
After being placed in the second groove 14 by metallic support and carry out die casting, then metallic support is machined, with The inner structural features such as feed position, discharge groove, positioning hole are formed on metallic support, and further metal frame section 1 is carried out at T The rear techniques such as reason, nanometer injection and laser carving.Wherein, the technique such as T processing, nanometer injection and laser carving is the technique of prior art, This is repeated no more.
Fig. 7 is refer to, Fig. 7 is that the mould of the present invention is nested with the die casting scheme process chart of aluminium alloy.Present embodiment is with gold Category frame section 1 material be aluminium alloy exemplified by illustrate.As shown in fig. 7, its process includes:
S21:Aluminium frame is processed.
Wherein, step S21 is to realize what aluminium frame was processed using the processing method of the metal frame section of above-mentioned embodiment, with The groove of back-off structure is formed in aluminium inframe side.
S22:Die casting.
Wherein, step S22 is the pressure casting method for using similar above-mentioned embodiment, and metallic support is placed in into metal frame section Groove in again using die casting carry out die casting.
Wherein step S23 to S39 is respectively:Thick punching, fine, CNC1 rough mills anti-inner face, CNC2 rough mills positive inner face, CNC3 millings (English is by side opening, T processing (be heat-treated), NMT:Nano Molding Technology;Chinese is:Nanometer injection), CNC4 Finish-milling front, CNC5 finish-millings reverse side, CNC6 millings side switch, hot shaping, sandblasting, anode 1, bloom, anode 2, CNC7 conductive bits are by wrinkle Keyhole and laser carving.Wherein, step S23 to S39 method is similar with prior art, will not be repeated here.
The present invention also provides a kind of metal frame section 1, and the metal frame section 1 is made using above-mentioned processing method, herein not Repeat again.
In summary, the processing of metal frame section of the invention is by being processed shape to the medial surface of metal frame section Into the groove of back-off structure, the A/F of groove is less than bottom width, and the A/F of groove can adjust as needed, And metallic support can combine closely and is not easily disconnected from metal frame section after causing die casting.In addition, metal frame section is initially formed, then The mode of die-cast metal support can one-shot forming product most of inner structural features, shorten the production cycle, reduction is produced into This.
Embodiments of the present invention are the foregoing is only, are not intended to limit the scope of the invention, it is every to utilize this The equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations Technical field, it is included within the scope of the present invention.

Claims (10)

1. a kind of processing method of metal frame section, it is characterised in that the processing method includes:
Produce the metal frame section;
The first groove with rectangular parallelepiped structure is processed in the medial surface of the metal frame section;
Extruded using opening of the crowded type knife in first groove, had to be formed in the medial surface of the metal frame section There is the second groove of back-off structure;
Metallic support is placed in second groove, using die casting to being built-in with the metal branch in second groove The metal frame section of frame carries out die casting so that and the metallic support is combined closely in the medial surface of the metal frame section, And can one-shot forming product major part inner structural features.
2. processing method according to claim 1, it is characterised in that described the step of producing the metal frame section wraps Include:
The metal frame section is produced using aluminium extruded technique.
3. processing method according to claim 1, it is characterised in that described the step of producing the metal frame section wraps Include:
The metal frame section is produced using machining.
4. processing method according to claim 1, it is characterised in that the medial surface in the metal frame section is processed The step of going out the first groove with rectangular parallelepiped structure includes:
Milling is carried out to the medial surface of the metal frame section using T-shaped knife, with the medial surface milling of the metal frame section Go out the first groove with rectangular parallelepiped structure, wherein the depth of first groove is the milling depth of the T-shaped knife.
5. processing method according to claim 4, it is characterised in that described using crowded type knife opening in first groove Extruded at mouthful, included with being formed in the medial surface of the metal frame section the step of the second groove with back-off structure:
Rotary squeezing is carried out using opening of the crowded type knife in first groove, so that the material of the first inside grooves opening The lateral surface expected toward the metal frame section is extruded to form second groove with back-off structure.
6. processing method according to claim 5, it is characterised in that the width of the opening of second groove is less than bottom Width.
7. processing method according to claim 1, it is characterised in that the processing method also includes:
The metallic support is machined, to form feed position and discharge groove on the metallic support.
8. processing method according to claim 7, it is characterised in that the processing method also includes:
T processing, nanometer injection and laser carving are carried out to the metal frame section.
9. according to the method described in any one of claim 1 to 7, it is characterised in that the metal frame section is aluminium frame section.
10. a kind of metal frame section, it is characterised in that the medial surface of the metal frame section forms second with back-off structure Groove, second groove are used to place metallic support so that described to being built-in with second groove using die casting After the metal frame section of metallic support carries out die casting, the metallic support is combined closely in the metal frame section Side, and can one-shot forming product major part inner structural features, wherein the width of the opening of second groove is less than bottom The width in portion.
CN201510632683.7A 2015-09-29 2015-09-29 A kind of metal frame section and its processing method Expired - Fee Related CN105234630B (en)

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CN106736306B (en) * 2017-02-10 2020-11-13 惠州Tcl移动通信有限公司 Metal shell of electronic product and surface treatment method thereof
CN107979925A (en) * 2017-11-20 2018-05-01 广东欧珀移动通信有限公司 A kind of processing method of housing, housing and mobile terminal
CN111036673A (en) * 2019-11-14 2020-04-21 江阴康瑞成型技术科技有限公司 Processing technology of titanium alloy mobile phone built-in structural member

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CN101433934B (en) * 2008-12-11 2012-11-14 李殷德 Riveting method
CN202309803U (en) * 2011-10-31 2012-07-04 福建省石狮市通达电器有限公司 Novel structure of middle-border bracket for mobile phones
CN104551562B (en) * 2014-12-16 2017-02-22 广东欧珀移动通信有限公司 Processing method of metal middle frame mobile phone shell structure
CN204350084U (en) * 2015-01-28 2015-05-20 东莞市晋益电子科技有限公司 A kind of novel mobile phone framework
CN104607884B (en) * 2015-02-13 2017-03-22 广东欧珀移动通信有限公司 Processing technique of cellphone shell with metal luster

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