CN107520685A - glass shell processing method and glass shell - Google Patents
glass shell processing method and glass shell Download PDFInfo
- Publication number
- CN107520685A CN107520685A CN201710898656.3A CN201710898656A CN107520685A CN 107520685 A CN107520685 A CN 107520685A CN 201710898656 A CN201710898656 A CN 201710898656A CN 107520685 A CN107520685 A CN 107520685A
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- CN
- China
- Prior art keywords
- glass shell
- outer sleeve
- sleeve blank
- glass
- processing method
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/22—Single-purpose machines or devices for particular grinding operations not covered by any other main group characterised by a special design with respect to properties of the material of non-metallic articles to be ground
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Surface Treatment Of Glass (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
The present invention relates to a kind of glass shell processing method and glass shell.The glass shell, which encloses, is set as an open cavity, it is placed on when the glass shell is quiet in a reference level surface and when keeping stress balance, section on the inner surface of the side wall of the glass shell and/or outer surface everywhere and the reference level surface sandwiched exist and are more than 90 ° and the value less than 90 ° into some dihedral angles simultaneously in some dihedral angles；The processing method comprises the following steps：Glass substrate is formed from raw material loading and unloading；The glass substrate is processed to form the outer sleeve blank with the open cavity by CNC techniques；Grinding and polishing are carried out to the surface of the outer sleeve blank；Hole and groove are processed on outer sleeve blank；Cure process is carried out to outer sleeve blank to form glass shell.The processing method reduces the difficulty of processing of glass shell, and the glass shell of any shape can be processed, while improves the size and dimension precision of glass shell after processing.
Description
Technical field
The present invention relates to technical field of electronic equipment, more particularly to a kind of glass shell processing method and using this method
The glass shell of processing.
Background technology
In the electronic equipments such as mobile phone, when its shell uses 3D glass, 3D glass generally use injection or extruding etc.
Thermoforming process machine-shaping, but traditional thermoforming process difficulty of processing is big, can only process a few given configuration
3D glass, while influence the size and the accuracy of form and position of 3D glass after processing.
The content of the invention
The technical problem that the present invention solves is the difficulty for how reducing glass shell processing to improve operating efficiency.
A kind of glass shell processing method, the glass shell, which encloses, is set as an open cavity, when the glass shell is placed on
When in one reference level surface and keeping stress balance, it is at least one in the inner surface of the side wall of the glass shell and outer surface on
Section everywhere and the reference level surface sandwiched exist and are more than 90 ° into some dihedral angles simultaneously in some dihedral angles
With the value less than 90 °；Characterized in that, the processing method comprises the following steps：
Glass substrate is formed from raw material loading and unloading；
The glass substrate is processed to form the outer sleeve blank with the open cavity by CNC techniques；
Grinding and polishing are carried out to the surface of the outer sleeve blank；And
Cure process is carried out to outer sleeve blank to form glass shell.
In one of the embodiments, in the step of forming glass substrate from raw material loading and unloading, cut using jet
Technique blanking.
In one of the embodiments, the CNC techniques comprise the following steps：
Write the feed path of control cutter and the control program of movement velocity；
By glass substrate clamping in lathe；
An open cavity is formed in processing on glass substrate；And
The outer surface of glass substrate is processed to form outer sleeve blank.
In one of the embodiments, process to form open cavity on the glass substrate using T-shaped milling cutter.
In one of the embodiments, the outer surface of glass substrate is processed to form outer sleeve blank by electric spark technique.
In one of the embodiments, in the step of Surface Machining of the outer sleeve blank, the grinding bag
Include corase grind processing and fine grinding.
In one of the embodiments, in the corase grind procedure of processing, it is ground using type diamond grinding wheel, its
In, the linear velocity that type diamond grinding wheel rotates is 25-35m/s, and the feed speed of outer sleeve blank is 2-10cm/s, grinding fluid
Flow velocity is 15-20L/min.
In one of the embodiments, in the fine grinding step, it is ground using resin ground wheel, wherein,
The linear velocity that resin ground wheel rotates is 10-15m/s, and the feed speed of outer sleeve blank is 1-5cm/s, and the flow velocity of grinding fluid is
5—15L/min。
In one of the embodiments, in the polishing step, by polishing disk and polishing agent to outer sleeve blank
It is polished, the polishing disk is formed by the pressing of cerium oxide, lanthana, Corvic and adhesive, wherein, the oxidation
The span of the mass percent of cerium is 70% -90%；The polishing agent is AL2O3、SiO2And Pr6O11Mixing it is water-soluble
Liquid, wherein, the concentration ratio AL of the polishing agent2O3：SiO2：Pr6O11Value be 0.2:0.1:1.
In one of the embodiments, the linear velocity that the polishing disk rotates be 5-10m/s, the flow velocity of polishing agent is 1-
8L/min。
In one of the embodiments, before cure process is carried out to outer sleeve blank, by way of milling and drilling
Hole and groove are processed on the outer sleeve blank.
In one of the embodiments, in the cure process step, the outer sleeve blank is heated to 750-1000
DEG C and be incubated 1-2min, then by air-cooled mode by after heating outer sleeve blank cool down；Or
The outer sleeve blank is heated to 300-550 DEG C, then using the outer sleeve blank after ne ion bombardment heating.
A kind of glass shell, as above any described glass shell processing method is made for use
One of one embodiment of the present of invention has the technical effect that the size and dimension precision of glass shell after raising processing.
Brief description of the drawings
Fig. 1 is the cross section profile schematic diagram for the glass shell that first embodiment provides；
Fig. 2 is the cross section profile schematic diagram for the glass shell that second embodiment provides；
Fig. 3 is the cross section profile schematic diagram for the glass shell that 3rd embodiment provides；
Fig. 4 is the schematic top plan view of glass substrate；
Fig. 5 is the structural representation for the glass substrate for being machined with open cavity；
Fig. 6 is the structural representation of outer sleeve blank；
Fig. 7 is the fundamental diagram that grinding is carried out to outer sleeve blank；
Fig. 8 is the process flow diagram for the glass shell processing method that an embodiment provides.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give the better embodiment of the present invention.But the present invention can realize in many different forms, however it is not limited to herein
Described embodiment.On the contrary, the purpose for providing these embodiments is to make to understand more the disclosure
Add thorough and comprehensive.
It should be noted that when element is referred to as " being fixed on " another element, it can be directly on another element
Or there may also be element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " interior ", " outer ", "left", "right" and
For illustrative purposes only, it is unique embodiment to be not offered as similar statement.
Fig. 1 to Fig. 3, a kind of glass shell 10 are referred to simultaneously, the glass shell 10 includes shell body 300, and shell body 300 wraps
Ceiling plate portion 200 and frame portion 100 (equivalent to the side wall of glass shell 10) are included, frame portion 100 is connected to the side of ceiling plate portion 200
Edge, ceiling plate portion 200 surround an open cavity 310 with frame portion 100.Frame portion 100 includes outer surface 110, inner surface 120 and side
130, the side 130 can be plane or curved surface, and outer surface 110 is oppositely arranged with inner surface 120, and side 130 is connected to appearance
Between face 110 and the end of inner surface 120.
It is placed on when shell body 300 is quiet in a reference level surface 30 and when keeping stress balance (for example, the table of ceiling plate portion 200
Face contacts with the reference level surface 30), section is done on the outer surface 110 of frame portion 100 and inner surface 120, if definition
, into some dihedral angle β, following three kinds of states be present with the sandwiched of reference level surface 30 in dry section：Refering to Fig. 2, for frame portion
Each section on 100 outer surface 110, if the dihedral angle more than 90 ° and less than 90 ° be present with reference level surface 30 simultaneously
β, then frame portion 100 be in outer left-hand thread state.Refering to Fig. 3, for each section on the inner surface 120 of frame portion 100, if
The dihedral angle β more than 90 ° and less than 90 ° be present with reference level surface 30 simultaneously, then frame portion 100 is in interior left-hand thread state.Ginseng
Fig. 1 is read, if each section on the outer surface 110 of frame portion 100 exists more than 90 ° and is less than simultaneously with reference level surface 30
90 ° of dihedral angle β, and also presence is more than in each section on the inner surface 120 of frame portion 100 simultaneously with reference level surface 30
90 ° and the dihedral angle β less than 90 °, then frame portion 100 is in inside and outside left-hand thread state.
The glass shell 10 can apply to various mobile terminals (such as smart mobile phone and tablet personal computer etc.), for intelligence
Mobile phone, the glass shell 10 may be used as the battery cover board of mobile phone, be also used as the screen cover plate of mobile phone.
For the glass shell 10 of said structure (carrying left-hand thread structure), the present invention provides a kind of glass shell processing side
Method, except the glass shell 10 for said structure, the glass shell processing method is equally applicable to other any structure types
Glass shell 10 processing.Refering to Fig. 8, the glass shell processing method mainly comprises the following steps：
S410, refering to Fig. 4, glass substrate 20 is formed from raw material loading and unloading；
S420, refering to Fig. 5 and Fig. 6, glass substrate 20 is processed to form the shell with open cavity 310 by CNC techniques
Blank 40；
S430, refering to Fig. 7, grinding and polishing are carried out to the surface of outer sleeve blank 40；
S440, hole and groove are processed on outer sleeve blank 40；
S450, cure process is carried out to outer sleeve blank 40 to form glass shell 10.
Because the integral outer and in-profile of glass shell 10 can all be fitted using CNC technique machine-shapings, CNC techniques
With the processing of the glass shell 10 of various structure types, the shaping difficulty of glass shell 10 is reduced, also improves processing efficiency；
Meanwhile CNC techniques improve the size and dimension precision of glass shell 10 after processing, it is ensured that the crudy of glass shell 10.
In certain embodiments, when forming glass substrate 20 from raw material loading and unloading, can use under jet cutting process
Material, such as high pressure jer cutting etc., the horizontal and vertical stress pole that high pressure jer cutting is formed on glass substrate 20
Small, mechanical stress and strain can be ignored.Therefore, in cutting process, glass substrate 20 will not be because of excessive cutting force
And produce and crush, meanwhile, high pressure jer cutting technique is cold cutting technique, will not change glass substrate 20 because cutting heat
Internal stress is distributed, and is easy to the follow-up processing of glass substrate 20.In other embodiments, it is for instance possible to use CNC glass cutting machines
Blanking is carried out, and for example, laser beam can also be used to cut.
It is main including following several during the processing of glass substrate 20 is formed into outer sleeve blank 40 by CNC techniques
Step：First, control program is write on Digit Control Machine Tool and is stored in memory, the control program is used for the feed for controlling cutter
Path (feed-paths, to knife point and tool changing point etc.) and movement velocity (feed speed, spindle speed and cutting speed etc.).So
Afterwards, by glass substrate 20 by fixture clamping in Digit Control Machine Tool.Then, refering to Fig. 5, added by milling cutter on glass substrate 20
Work forms open cavity 310 (in-profile for forming outer sleeve blank 40), and milling cutter can use T-shaped milling cutter.Finally, refering to Fig. 6,
The outer surface (exterior contour for forming outer sleeve blank 40) of glass substrate 20 is processed by electric spark technique, can also be used more
The mode of secondary milling processes the outer surface of glass substrate 20.Behind outer surface and inner surface whole completion of processing, you can formed outer
Shell blank 40.
When CNC processes outer sleeve blank 40, using cutting fluid as cooling agent and lubricant, absorb and produced in milling process
Heat and improve Milling Accuracy and milling efficiency.The composition of cutting fluid can including 5% -10% bleeding agent, 0.5% -
0.8% foam inhibitor, paraffin oil 40% -60%, polyalcohol 20% -30%, polyamide 10% -15% and the molten alkali salt of strong acid
5% -6% (above-mentioned percentage is mass percent).Cutting fluid can be delivered to glass substrate 20 by the way of spraying
Surface, for example, cutting fluid is sprayed onto the surface of glass substrate 20 by pulsed atomizer, under injection pressure on an equal basis, pulse
Formula atomizer can improve the atomizing effect of cutting fluid, cutting fluid is uniformly effectively infiltrated into milling position, while save list
The consumption of cutting fluid in the time of position.Certainly, cutting fluid can also be delivered to milling position by the way of spray.
Effectively to reclaim used cutting fluid, to recycle, the circulatory system can be set, the circulatory system it is defeated
Entrance is connected with the outlet of cutting fluid on Digit Control Machine Tool, and the delivery outlet of the circulatory system is connected with cutting liquid case, therefore, by cutting
The recycling to reduce CNC processing costs of liquid is cut, the circulatory system includes purifier, and purifier passes through rotation at a high speed and produced
Centrifugal force, under the influence of centrifugal force, the glass chip being suspended in cutting fluid is by the side wall got rid of to purifier and enters back
Receiving apparatus, finally the greasy dirt in Separation of Cutting liquid cuts liquid case to enter again.
After CNC completion of processing, grinding is carried out to the surface (inner surface and outer surface) of outer sleeve blank 40, to eliminate
Scuffing and micro-crack on the surface of outer sleeve blank 40, prepared for follow-up polishing.Grinding includes corase grind processing and fine grinding adds
Work.
In procedure of processing is roughly ground, it is ground using type diamond grinding wheel 51, the hardness of type diamond grinding wheel 51 is more than outer
The hardness of shell blank 40, the efficiency of corase grind processing can be improved.During work, type diamond grinding wheel 51 rotates at a high speed, outer sleeve blank
40 relative type diamond grinding wheels 51 move horizontally, so as to realize the grinding to the surface of outer sleeve blank 40.Wherein, diamond lap
The linear velocity that wheel 51 rotates is 25-35m/s, and the feed speed of outer sleeve blank 40 is 2-10cm/s, and the flow velocity of grinding fluid is
15—20L/min。
In fine grinding step, it is ground using resin ground wheel 52, the hardness of resin ground wheel 52 is slightly below outer
The hardness of shell blank 40, its method for grinding is similar with corase grind processing, the velocity of rotation of the rotation of resin ground wheel 52, outer sleeve blank 40
Feed speed and grinding fluid flow velocity it is relatively low.Wherein, the linear velocity that resin ground wheel 52 rotates is 10-15m/s, outside
The feed speed of shell blank 40 is 1-5cm/s, and the flow velocity of grinding fluid is 5-15L/min.
After grinding, outer sleeve blank 40 is processed by shot blasting, after polishing, the rough surface of outer sleeve blank 40
Angle value finally makes glass shell 10 reach the visual effect of flat smooth up to Ra≤0.05 μm.
In polishing step, outer sleeve blank 40 is polished by polishing disk and polishing agent, polishing disk is by aoxidizing
Cerium, lanthana, Corvic and adhesive pressing form, wherein, the span of the mass percent of cerium oxide is
70% -90%；Polishing agent is AL2O3、SiO2And Pr6O11Mixed aqueous solution, wherein, the concentration ratio AL of polishing agent2O3：SiO2：
Pr6O11Value be 0.2:0.1:1.The linear velocity that polishing disk rotates is 5-10m/s, and the flow velocity of polishing agent is 1-8L/min.
Outer sleeve blank 40 is polished using the polishing disk and polishing agent, polishing disk can be reduced on the basis of polishing efficiency is improved
To cut caused by outer sleeve blank 40, it is ensured that the finish of glass shell 10.
After polishing, hole and groove can be processed on outer sleeve blank 40 by way of milling and drilling, for example, hole and
Groove can be earpiece holes, key hole and slot on phone housing etc..
Finally, cure process is carried out to outer sleeve blank 40 to form glass shell 10.By cure process, can significantly carry
The anti-wear performance of high glass shell 10, scratch is avoided to influence the finish on the surface of glass shell 10.
When 40 cure process of outer sleeve blank, in certain embodiments, for example, outer sleeve blank 40 is heated to 750-
1000 DEG C and 1-2min of insulation, then cooled down the outer sleeve blank 40 after heating by air-cooled mode.So, can be in glass
Internal stress is formed in shell 10 to improve its hardness.And for example, outer sleeve blank 40 is heated to 300-550 DEG C, then using ne ion
Outer sleeve blank 40 after bombardment heating.According to the needs of actual conditions, the bombardment number of ne ion can be suitably adjusted, passes through neon
The bombardment of ion, the molecule on the surface of outer sleeve blank 40 can be made to be resequenced, so as to form cementation zone, be finally reached and carry
The effect of the high hardness of glass shell 10.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (13)
1. a kind of glass shell processing method, the glass shell, which encloses, is set as an open cavity, when the glass shell is placed on one
It is at least one each in the inner surface of the side wall of the glass shell and outer surface in reference level surface and when keeping stress balance
The section at place and the reference level surface sandwiched into some dihedral angles, exist simultaneously in some dihedral angles be more than 90 ° and
Value less than 90 °；Characterized in that, the processing method comprises the following steps：
Glass substrate is formed from raw material loading and unloading；
The glass substrate is processed to form the outer sleeve blank with the open cavity by CNC techniques；
Grinding and polishing are carried out to the surface of the outer sleeve blank；And
Cure process is carried out to outer sleeve blank to form glass shell.
2. glass shell processing method according to claim 1, it is characterised in that forming glass from raw material loading and unloading
In the step of substrate, using jet cutting process blanking.
3. glass shell processing method according to claim 1, it is characterised in that the CNC techniques comprise the following steps：
Write the feed path of control cutter and the control program of movement velocity；
By glass substrate clamping in lathe；
An open cavity is formed in processing on glass substrate；And
The outer surface of glass substrate is processed to form outer sleeve blank.
4. glass shell processing method according to claim 3, it is characterised in that using T-shaped milling cutter on the glass substrate
Processing forms open cavity.
5. glass shell processing method according to claim 3, it is characterised in that glass base is processed by electric spark technique
The outer surface of plate is to form outer sleeve blank.
6. glass shell processing method according to claim 1, it is characterised in that add on the surface to the outer sleeve blank
In the step of work, the grinding includes corase grind processing and fine grinding.
7. glass shell processing method according to claim 6, it is characterised in that in the corase grind procedure of processing, adopt
It is ground with type diamond grinding wheel, wherein, the linear velocity that type diamond grinding wheel rotates is 25-35m/s, and outer sleeve blank enters
It is 2-10cm/s to speed, the flow velocity of grinding fluid is 15-20L/min.
8. glass shell processing method according to claim 6, it is characterised in that in the fine grinding step, adopt
It is ground with resin ground wheel, wherein, the linear velocity that resin ground wheel rotates is 10-15m/s, and the feeding of outer sleeve blank is fast
Spend for 1-5cm/s, the flow velocity of grinding fluid is 5-15L/min.
9. glass shell processing method according to claim 1, it is characterised in that in the polishing step, lead to
Cross polishing disk and polishing agent is polished to outer sleeve blank, the polishing disk is by cerium oxide, lanthana, Corvic and glue
Stick pressing forms, wherein, the span of the mass percent of the cerium oxide is 70% -90%；The polishing agent is
AL2O3、SiO2And Pr6O11Mixed aqueous solution, wherein, the concentration ratio AL of the polishing agent2O3：SiO2：Pr6O11Value be
0.2:0.1:1。
10. glass shell processing method according to claim 9, it is characterised in that the linear velocity that the polishing disk rotates
For 5-10m/s, the flow velocity of polishing agent is 1-8L/min.
11. glass shell processing method according to claim 1, it is characterised in that carried out to outer sleeve blank at hardening
Before reason, hole and groove are processed on the outer sleeve blank by way of milling and drilling.
12. glass shell processing method according to claim 1, it is characterised in that, will in the cure process step
The outer sleeve blank is heated to 750-1000 DEG C and is incubated 1-2min, then by air-cooled mode by the outer sleeve blank after heating
Cooling；Or
The outer sleeve blank is heated to 300-550 DEG C, then using the outer sleeve blank after ne ion bombardment heating.
13. a kind of glass shell, it is characterised in that using the glass shell processing as any one of claim 1 to 10
Method is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710898656.3A CN107520685B (en) | 2017-09-28 | 2017-09-28 | Glass shell processing method and glass shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710898656.3A CN107520685B (en) | 2017-09-28 | 2017-09-28 | Glass shell processing method and glass shell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107520685A true CN107520685A (en) | 2017-12-29 |
| CN107520685B CN107520685B (en) | 2019-06-28 |
Family
ID=60737628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710898656.3A Expired - Fee Related CN107520685B (en) | 2017-09-28 | 2017-09-28 | Glass shell processing method and glass shell |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110181339A (en) * | 2018-02-23 | 2019-08-30 | 蓝思科技（长沙）有限公司 | The method in hole, slot is processed on a kind of ceramic product |
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| CN106132141A (en) * | 2016-08-03 | 2016-11-16 | 南昌欧菲光学技术有限公司 | Electronic product, glass shell and manufacture equipment thereof and method |
| CN106231829A (en) * | 2016-08-03 | 2016-12-14 | 南昌欧菲光学技术有限公司 | Electronic product, glass shell and manufacture equipment thereof and method |
| CN106363501A (en) * | 2015-07-24 | 2017-02-01 | 蓝思科技（长沙）有限公司 | Arc surface processing and polishing method for ceramic product and ceramic panel |
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| EP2709283A1 (en) * | 2012-09-14 | 2014-03-19 | Samsung Electronics Co., Ltd | Protective Device for Mobile Terminal |
| CN104080286A (en) * | 2013-03-26 | 2014-10-01 | 正达国际光电股份有限公司 | Glass housing and display device |
| CN104341097A (en) * | 2013-07-26 | 2015-02-11 | 比亚迪股份有限公司 | Groove type glass processing apparatus and method |
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| CN110181339A (en) * | 2018-02-23 | 2019-08-30 | 蓝思科技（长沙）有限公司 | The method in hole, slot is processed on a kind of ceramic product |
| CN110181339B (en) * | 2018-02-23 | 2021-12-21 | 蓝思科技（长沙）有限公司 | Method for processing holes and grooves on ceramic product |
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| Publication number | Publication date |
|---|---|
| CN107520685B (en) | 2019-06-28 |
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