CN109202602A - Method for polishing non-spherical insert - Google Patents
Method for polishing non-spherical insert Download PDFInfo
- Publication number
- CN109202602A CN109202602A CN201811103039.0A CN201811103039A CN109202602A CN 109202602 A CN109202602 A CN 109202602A CN 201811103039 A CN201811103039 A CN 201811103039A CN 109202602 A CN109202602 A CN 109202602A
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- China
- Prior art keywords
- polishing
- spherical insert
- slewing
- spherical
- insert
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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
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The invention belongs to mode surface polishing fields, specifically disclose a kind of method for polishing non-spherical insert, polish the requirement that the surface roughness of non-spherical insert can be made to reach Ra≤0.003 to non-spherical insert using this method.The revolving speed that this method passes through substep control polishing slewing, and rough polishing, half finishing polish and finishing polish are successively carried out to by the non-spherical insert of Ultra-precision Turning using varigrained diamond cream under different rotating speeds, so that the surface quality of non-spherical insert is finally reached 20-10 or more, observation reaches the standard of Ra≤0.003 entirely without scuffing and point, the surface roughness requirements for meeting non-spherical insert under 50 power microscopes.
Description
Technical field
The invention belongs to mode surface polishing fields, and in particular to a method of for polishing non-spherical insert.
Background technique
It is widely applied as aspherics glass imaging field day overflows, the exterior quality of aspherical lens is required also to get over
Come it is higher, so the surface polishing quality of non-spherical insert will also correspondingly increase, especially mirror surface and the bloom mould that highlights surface
Benevolence is higher to mode surface roughness requirements, thus the requirement to polishing is also higher.Polishing is in non-spherical insert manufacturing process
It is a critically important procedure, polishing not only increases the beauty of mode, but also can improve the corrosion resistance, wear-resisting of material surface
Property and coating performance, subsequent lens die mould can also be convenient to, such as increase film layer service life, reduction repair a die period etc..
Surface polishing, which is generally only required, obtains bright surface removal cutter trade.But the institute in glass mold processing
Required surface polishing is very different in the polishing and other industry said, strictly speaking, the polishing of mode should be known as
Super mirror finish.It not only has very high requirement to polishing and in itself to surface roughness, smoothness and PV accuracy
There is very high requirement.
Currently, the surface roughness requirements of non-spherical insert have been arrived with the standard of Ra≤0.003, and fluid polishing etc.
Method is difficult accurately to control the geometrical accuracy of part, the surface matter of the methods of chemical polishing, ultrasonic polishing, magnetic grinding and polishing
Amount again do not reach requirement, therefore the mirror finish of precision die still with mechanically polish based on.Mechanical polishing is by cutting or grinding
It cuts material surface plastic deformation to remove the protrusion after being polished and obtain the polishing method of even surface, general surface quality requirements are high
The method that superfinishing polishing can be used.Superfinishing polishing is to use special grinding tool in the antiscuffing paste containing abrasive material, is pressed on work
On tool and mode surface, rotate.The surface roughness that can achieve Ra0.008 μm using this method is various at present
Highest in polishing method, optical mirror slip mode is polished frequently with this method；But still it is unable to reach Ra≤0.003
Requirement.
Summary of the invention
The present invention provides a kind of methods for polishing non-spherical insert, are thrown using this method to non-spherical insert
Light can make the surface roughness of non-spherical insert reach the requirement of Ra≤0.003.
The technical solution adopted by the present invention to solve the technical problems is: the method for polishing non-spherical insert, the party
Method includes the preparation process on the non-spherical insert clamping to polishing slewing for will pass through Ultra-precision Turning, further include following step
It is rapid:
Step 1 controls the revolving speed for polishing slewing in 160~200rpm, using #1 diamond cream by aspheric face mould
The center of benevolence slides in and out polishing, is polished to surface quality and reaches 60-40 or more；
Step 2 controls the revolving speed for polishing slewing in 40~100rpm, using #1/2 diamond cream to aspherical
Mode carries out half finishing polish, is polished to surface quality and reaches 40-20 or more；
Step 3 controls the revolving speed for polishing slewing in 20~30rpm, using #1/4 diamond cream to aspheric face mould
Benevolence carries out finishing polish, is polished to surface quality and reaches 20-10 or more.
Further, assisting polishing using cork stick.
Further, being 50~100g/cm to the load that non-spherical insert applies in step 32。
Further, the polishing slewing is rotary polisher or grinder.
The beneficial effects of the present invention are: revolving speed of this method by substep control polishing slewing, and in different rotating speeds
It is lower that rough polishing, half finishing polish and essence are successively carried out to by the non-spherical insert of Ultra-precision Turning using varigrained diamond cream
Polishing, so that the surface quality of non-spherical insert is finally reached 20-10 or more, observation is entirely without scuffing under 50 power microscopes
And point, the surface roughness requirements for meeting non-spherical insert reach the standard of Ra≤0.003.
Specific embodiment
Method for polishing non-spherical insert, this method include that will arrive by the non-spherical insert clamping of Ultra-precision Turning
The preparation process on slewing is polished, further includes the following steps:
Step 1 controls the revolving speed for polishing slewing in 160~200rpm, using #1 diamond cream by aspheric face mould
The center of benevolence slides in and out polishing, is polished to surface quality and reaches 60-40 or more；Aspheric face mould is observed under 50 power microscopes
Benevolence surface is without obvious cutter trade；It is 5~7 minutes time-consuming as the step 1；
Step 2 controls the revolving speed for polishing slewing in 40~100rpm, using #1/2 diamond cream to aspherical
Mode carries out half finishing polish, is polished to surface quality and reaches 40-20 or more；Non-spherical insert table is observed under 50 power microscopes
Face is entirely without cutter trade；It is 8~20 minutes time-consuming as the step 1；
Step 3 controls the revolving speed for polishing slewing in 20~30rpm, using #1/4 diamond cream to aspheric face mould
Benevolence carries out finishing polish, is polished to surface quality and reaches 20-10 or more；It is complete that non-spherical insert surface is observed under 50 power microscopes
Completely without scuffing and point；It is 20~30 minutes time-consuming as the step 1.
Using this method carry out polishing belong to it is precise polished, it is necessary to carried out in an absolutely clean space.Dust, cigarette
Mist, dandruff and saliva foam are likely to scrap the high precision polishing surface obtained after work in several hours.When use diamond cream
When grinding and polishing, working surface requirement cleaning is not required nothing more than, and the both hands of worker also must be cleaned carefully.
Wherein, polishing slewing is for driving non-spherical insert to rotate, to polish to it；Polishing slewing can
Think a variety of, preferably rotary polisher or grinder.Diamond cream is the mixing of a kind of diamond fine particle and oiliness bonding agent
Object；#1 diamond cream indicates that granularity is 1 μm of diamond grains and the mixture of bonding agent, and #1/2 diamond cream indicates granularity
0.5 μm of diamond grains and the mixture of bonding agent, #1/4 diamond cream indicate granularity be 0.25 μm diamond grains and
The mixture of bonding agent.Surface quality standard 60-40,40-20,20-10 are U.S. Military Standard, and number front indicates that scratch is permitted
Perhaps maximum value, behind digital representation idea allow maximum value；Referring specifically in U.S. Military Standard MIL-PRF-13830B about
Flaw disease standard.
For the ease of polishing, during polishing using this method to non-spherical insert, it is auxiliary to generally use cork stick
Help polishing.When polishing aspherical or spherical surface, the radian of disc and spherical surface can be preferably cooperated using cork stick.It is used soft
Wooden stick usually requires to be modified, and the general end for modifying cork stick can keep coincideing with non-spherical insert surface shape,
It in this way can be to avoid the acute angle of cork stick contacts non-spherical insert surface and causes deeper scratch.
It must be carried out under lighter pressure as far as possible when being polished, it is non-to ensure when especially being polished with jig drill gypsum
Spherical surface mode surface pressing is not too high, so that the face type PV of non-spherical insert will not be destroyed.Better surface matter in order to obtain
It measures, is 50~100g/cm to the load that non-spherical insert applies in step 32。
Embodiment 1
It is polished using non-spherical insert of the method for the present invention to a diameter phi 15.
Firstly, by by the non-spherical insert clamping to the workbench of rotary polisher of Ultra-precision Turning；
Then, the revolving speed of rotary polisher is controlled in 200rpm, using #1 diamond cream by the center of non-spherical insert
Polishing 5 minutes is slid in and out, observes non-spherical insert surface without obvious cutter trade, surface after polishing under 50 power microscopes
Quality reaches 60-40；
Then, by the revolving speed control of rotary polisher in 80rpm, non-spherical insert surface is thrown using #1/2 diamond cream
Light 10 minutes, non-spherical insert surface is observed after polishing under 50 power microscopes entirely without cutter trade, surface quality reaches
40-20；
Finally, controlling the revolving speed for polishing slewing in 30rpm, using #1/4 diamond cream in 50g/cm2Load
Under observed under 50 power microscopes to non-spherical insert surface polishing 20 minutes, after polishing non-spherical insert surface entirely without draw
Wound and point, surface quality reach 20-10.
Non-spherical insert surface after polishing is detected, surface roughness Ra 0.002 meets non-spherical insert
Surface roughness requirements reach the standard of Ra≤0.003.
Embodiment 2
It is polished using non-spherical insert of the method for the present invention to a diameter phi 15.
Firstly, by by the non-spherical insert clamping to the workbench of rotary polisher of Ultra-precision Turning；
Then, the revolving speed of rotary polisher is controlled in 160rpm, using #1 diamond cream by the center of non-spherical insert
Polishing 7 minutes is slid in and out, observes non-spherical insert surface without obvious cutter trade, surface after polishing under 50 power microscopes
Quality reaches 60-40；
Then, by the revolving speed control of rotary polisher in 50rpm, non-spherical insert surface is thrown using #1/2 diamond cream
Light 16 minutes, non-spherical insert surface is observed after polishing under 50 power microscopes entirely without cutter trade, surface quality reaches
40-20；
Finally, controlling the revolving speed for polishing slewing in 20rpm, using #1/4 diamond cream in 80g/cm2Load
Under observed under 50 power microscopes to non-spherical insert surface polishing 30 minutes, after polishing non-spherical insert surface entirely without draw
Wound and point, surface quality reach 20-10.
Non-spherical insert surface after polishing is detected, surface roughness Ra 0.002 meets non-spherical insert
Surface roughness requirements reach the standard of Ra≤0.003.
Embodiment 3
It is polished using non-spherical insert of the method for the present invention to a diameter phi 15.
Firstly, by by the non-spherical insert clamping to the workbench of rotary polisher of Ultra-precision Turning；
Then, the revolving speed of rotary polisher is controlled in 180rpm, using #1 diamond cream by the center of non-spherical insert
Polishing 6 minutes is slid in and out, observes non-spherical insert surface without obvious cutter trade, surface after polishing under 50 power microscopes
Quality reaches 60-40；
Then, the revolving speed of rotary polisher is controlled in 100rpm, using #1/2 diamond cream to non-spherical insert surface
Polishing 17 minutes, observes non-spherical insert surface entirely without cutter trade, surface quality reaches under 50 power microscopes after polishing
To 40-20；
Finally, controlling the revolving speed for polishing slewing in 25rpm, using #1/4 diamond cream in 100g/cm2Load
Under observed under 50 power microscopes to non-spherical insert surface polishing 24 minutes, after polishing non-spherical insert surface entirely without draw
Wound and point, surface quality reach 20-10.
Non-spherical insert surface after polishing is detected, surface roughness Ra 0.002 meets non-spherical insert
Surface roughness requirements reach the standard of Ra≤0.003.
Claims (4)
1. for the method that polishes non-spherical insert, this method includes will be by the non-spherical insert clamping of Ultra-precision Turning to throwing
Preparation process on light slewing, which is characterized in that further include the following steps:
Step 1 controls the revolving speed for polishing slewing in 160~200rpm, using #1 diamond cream by non-spherical insert
Center slides in and out polishing, is polished to surface quality and reaches 60-40 or more；
Step 2 controls the revolving speed for polishing slewing in 40~100rpm, using #1/2 diamond cream to non-spherical insert
Half finishing polish is carried out, surface quality is polished to and reaches 40-20 or more；
Step 3, will polish the revolving speed control of slewing in 20~30rpm, using #1/4 diamond cream to non-spherical insert into
Row finishing polish is polished to surface quality and reaches 20-10 or more.
2. the method as described in claim 1 for polishing non-spherical insert, it is characterised in that: thrown using cork stick auxiliary
Light.
3. the method as claimed in claim 1 or 2 for polishing non-spherical insert, it is characterised in that: in step 3, to aspheric
The load that face mould benevolence applies is 50~100g/cm2。
4. the method for polishing non-spherical insert as claimed in claim 3, it is characterised in that: the polishing slewing is
Rotary polisher or grinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811103039.0A CN109202602B (en) | 2018-09-20 | 2018-09-20 | Method for polishing non-spherical mold insert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811103039.0A CN109202602B (en) | 2018-09-20 | 2018-09-20 | Method for polishing non-spherical mold insert |
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| Publication Number | Publication Date |
|---|---|
| CN109202602A true CN109202602A (en) | 2019-01-15 |
| CN109202602B CN109202602B (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811103039.0A Active CN109202602B (en) | 2018-09-20 | 2018-09-20 | Method for polishing non-spherical mold insert |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936118A (en) * | 2019-12-17 | 2020-03-31 | 东莞市凯融光学科技有限公司 | Method for manufacturing tungsten carbide material mold core |
| CN112959141A (en) * | 2021-02-23 | 2021-06-15 | 北京理工大学 | Grinding material granularity gradient change investigation method based on torque feedback |
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| JPH08192348A (en) * | 1995-01-12 | 1996-07-30 | Fuji Xerox Co Ltd | Grinding and polishing method and device therefor |
| CN1846937A (en) * | 2005-04-13 | 2006-10-18 | 云南北方光学电子集团有限公司 | Processing method of optical glass and silicon single crystal aspheric optical element |
| CN103447938A (en) * | 2013-08-23 | 2013-12-18 | 浙江瑞莱士机械有限公司 | Grinding process of sealing surface of ball valve |
| CN105773316A (en) * | 2014-12-13 | 2016-07-20 | 重庆迎瑞升压铸有限公司 | Stainless steel mechanical polishing process |
| CN106826535A (en) * | 2017-02-06 | 2017-06-13 | 兴科电子科技有限公司 | A kind of aluminium alloy mirror processing method |
| CN107717708A (en) * | 2017-11-18 | 2018-02-23 | 五河县黄淮粮油机械有限公司 | A kind of die polishing method |
| CN107877097A (en) * | 2017-11-03 | 2018-04-06 | 瑞声光电科技(常州)有限公司 | The processing method and process equipment of lens mould |
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2018
- 2018-09-20 CN CN201811103039.0A patent/CN109202602B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08192348A (en) * | 1995-01-12 | 1996-07-30 | Fuji Xerox Co Ltd | Grinding and polishing method and device therefor |
| CN1846937A (en) * | 2005-04-13 | 2006-10-18 | 云南北方光学电子集团有限公司 | Processing method of optical glass and silicon single crystal aspheric optical element |
| CN103447938A (en) * | 2013-08-23 | 2013-12-18 | 浙江瑞莱士机械有限公司 | Grinding process of sealing surface of ball valve |
| CN105773316A (en) * | 2014-12-13 | 2016-07-20 | 重庆迎瑞升压铸有限公司 | Stainless steel mechanical polishing process |
| CN106826535A (en) * | 2017-02-06 | 2017-06-13 | 兴科电子科技有限公司 | A kind of aluminium alloy mirror processing method |
| CN107877097A (en) * | 2017-11-03 | 2018-04-06 | 瑞声光电科技(常州)有限公司 | The processing method and process equipment of lens mould |
| CN107717708A (en) * | 2017-11-18 | 2018-02-23 | 五河县黄淮粮油机械有限公司 | A kind of die polishing method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110936118A (en) * | 2019-12-17 | 2020-03-31 | 东莞市凯融光学科技有限公司 | Method for manufacturing tungsten carbide material mold core |
| CN112959141A (en) * | 2021-02-23 | 2021-06-15 | 北京理工大学 | Grinding material granularity gradient change investigation method based on torque feedback |
| CN112959141B (en) * | 2021-02-23 | 2022-06-03 | 北京理工大学 | Grinding material granularity gradient change investigation method based on torque feedback |
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| CN109202602B (en) | 2020-03-17 |
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Effective date of registration: 20211203 Address after: 610500 Huanghe Road 339, East Industrial District, Xindu District, Chengdu City, Sichuan Province Patentee after: Chengdu Guangming South Optical Technology Co.,Ltd. Address before: 610100 Chengdu Longquanyi District, Sichuan Province, No. 359, Section 3 of Chenglong Avenue Patentee before: CDGM GLASS Co.,Ltd. |