CN113560989A - Production method for processing high-precision lens by novel polishing solution - Google Patents
Production method for processing high-precision lens by novel polishing solution Download PDFInfo
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- CN113560989A CN113560989A CN202110475046.9A CN202110475046A CN113560989A CN 113560989 A CN113560989 A CN 113560989A CN 202110475046 A CN202110475046 A CN 202110475046A CN 113560989 A CN113560989 A CN 113560989A
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- polishing
- precision lens
- lens
- polishing solution
- solution
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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
-
- 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
- B24B57/00—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents
- B24B57/02—Devices for feeding, applying, grading or recovering grinding, polishing or lapping agents for feeding of fluid, sprayed, pulverised, or liquefied grinding, polishing or lapping agents
Abstract
The invention discloses a production method for processing a high-precision lens by using novel polishing solution, which is characterized by comprising seven production steps: 1) preparing a polishing solution; 2) coating polishing solution; 3) polishing and grinding; 4) cleaning and wiping; 5) secondary smearing, polishing and grinding; 6) secondary cleaning and wiping; 7) and coating to obtain the product. The polishing solution is prepared by mixing the cerium oxide polishing powder and the aqueous solution, so that the polishing solution has no corrosivity, the chemical reaction of the polishing solution is reduced, and the damage to the high-precision lens is avoided; the polishing solution is sprayed on the surface of the high-precision lens in a spraying mode, the high-precision lens is easy to clean, the redundant polishing solution after spraying can be recycled, the manufacturing cost is saved, and the smoothness and the finish of the high-precision lens are effectively improved through twice polishing, grinding and cleaning, so that the technical requirement of the high-precision lens is met.
Description
Technical Field
The invention belongs to the technical field of precision manufacturing, and particularly relates to a production method for processing a high-precision lens by using a novel polishing solution.
Background
Generally, high-precision lenses are applied to high-tech technical industries such as aerospace, cameras and the like, in the process of processing and treating the high-precision lenses, in order to improve the smoothness and finish grade of the lenses, the surfaces of the lenses need to be polished and ground, the polishing and grinding of the surfaces of the lenses are all performed by polishing liquid at present, however, the polishing liquid at the present stage needs to completely soak the lenses in the polishing liquid, so that chemical reaction is easily generated between the lenses and the polishing liquid, thereby affecting the polishing and grinding of the lenses, and even scratching the lenses, and such polishing liquid is generally only suitable for lenses with low precision, but when the high-precision lenses are polished and ground, chemical reaction is easily generated with such polishing liquid, scratching the high-precision lenses cannot meet the required smoothness, and immersion type polishing is generally adopted, the lenses are difficult to clean, and cannot meet the required finish, thereby affecting the film coating effect of the high-precision lens and even causing defective products.
In the existing lens processing technology of chinese patent CN 104044015 a, "specially prepared polishing solution is used in the processing process, the polishing solution uses polishing powder as raw material, water as solvent, and the amount of polishing powder added is controlled so that the density of the polishing solution is: 1.010-1.015; the method comprises the steps of adding zinc nitrate into a polishing solution to serve as a chemical additive, controlling the adding amount of the zinc nitrate to enable the pH value of the polishing solution to be 5-6, and keeping the temperature of the polishing solution to be 25-35 ℃ when the polishing solution is used.
The existing Chinese patent document CN 112338644A in the lens surface treatment process' comprises the following specific steps: coarse grinding: grinding the lens by using a grinding wheel, and carrying out basic shaping on the lens; fine grinding: contacting the shaped lens with a mold of a grinding sheet, and rotating the mold of the lens along with the cooling of the lubricating liquid and the grinding liquid to obtain a secondary shaped lens; polishing: mixing polishing powder, nitric acid and deionized water to form polishing liquid, and pouring the polishing liquid on the surface of the lens; coating a film on the lens; the polishing method has the technical key points that when the lens is polished, the polishing and grinding mechanisms are the same, and the immersion type polishing operation is adopted when the polishing is carried out, so that the polishing solution can be ensured to be completely matched with the surface of the lens, and the situation that the surface of the lens is scratched due to biting of polishing powder due to jumping generated during polishing is avoided; the polishing solution that uses can adopt the polishing powder, nitric acid and deionized water mix, and carry out the secondary polishing, can guarantee the level and smooth of lens surface, can effectively avoid the lens surface to take place the atomizing phenomenon simultaneously, this prior art has solved the problem on polishing powder scratch lens surface, but added the nitric acid in this prior art's polishing solution, and the nitric acid has strong oxidizing property and corrosivity, also easily produce chemical reaction with the lens, still can harm the high accuracy lens, influence the smoothness of high accuracy lens, and adopt the submergence formula to polish and polish the polishing to the lens, the submergence formula is polished and can be made the lens difficult to wash, influence the smooth finish of high accuracy lens.
In summary, in the prior art, zinc nitrate is added to polishing powder to enhance the use effect of the polishing solution, so that the problem that the lens is difficult to clean is solved, but zinc nitrate has oxidability and corrosivity and is liable to damage the high-precision lens, and nitric acid is added to the polishing powder to avoid the atomization phenomenon on the surface of the lens, but nitric acid has strong oxidability and corrosivity and is liable to damage the high-precision lens, so that the smoothness of the high-precision lens is affected, and immersion polishing makes the lens difficult to clean, so that the smoothness of the high-precision lens is affected. For this reason, a new technical solution is needed to solve the above technical problems.
Disclosure of Invention
The invention aims to provide a novel production method for processing a high-precision lens by using polishing solution, which aims to solve the problems that the high-precision lens at the present stage proposed in the background technology is difficult to clean, is easy to generate chemical reaction with the polishing solution, and cannot meet the required smoothness and finish degree.
In order to achieve the purpose, the invention provides the following technical scheme: the production method is characterized by comprising the following specific steps:
(1) stirring and mixing 20-30% of cerium oxide polishing powder and 70-80% of aqueous solution to prepare polishing solution, and measuring the density of the polishing solution to be 1.03-1.05 g/cm3 by using a baume densimeter, so that the polishing solution has no corrosivity, and the chemical reaction of the polishing solution on a high-precision lens is reduced;
(2) the prepared polishing solution is placed in a container and is uniformly sprayed onto the high-precision lens through a water pump and a water pipe, the high-precision lens is easy to clean by adopting a spraying mode, and the redundant polishing solution can be recycled after spraying;
(3) placing the high-precision lens sprayed with the polishing solution on polishing equipment through a clamp, and polishing and grinding the surface of the high-precision lens by the polishing equipment;
(4) placing the polished high-precision lens in a cleaning tank, pouring cleaning solution into the cleaning tank, cleaning the lens for 12-15min, taking out the lens and wiping the lens to obtain a primary finished product, wherein the surface smoothness of the primary finished product is poor;
(5) polishing and grinding the primary finished product in the steps (2) to (3) so as to ensure the smoothness required by the surface of the high-precision lens;
(6) cleaning and wiping the high-precision lens polished again to remove dirt or impurities on the surface so as to achieve the required cleanliness of the surface of the high-precision lens;
(7) and carrying out vacuum coating on the cleaned high-precision lens through coating equipment, and carrying out multilayer coating according to the requirement of the high-precision lens to obtain a final finished product.
Compared with the prior art, the invention has the beneficial effects that:
1. the polishing solution is prepared by mixing the cerium oxide polishing powder and the aqueous solution, so that the polishing solution has no corrosivity, the chemical reaction of the high-precision lens and the polishing solution can be effectively inhibited, the damage to the high-precision lens is avoided, and the quality and the efficiency of polishing and grinding are improved.
2. The polishing solution is sprayed on the surface of the high-precision lens in a spraying mode, so that the high-precision lens is easy to clean, redundant polishing solution after spraying can be recycled, the manufacturing cost is saved, and the smoothness of the high-precision lens are effectively improved through twice polishing, grinding and cleaning, so that the technical requirements of the high-precision lens are met.
Detailed Description
Example 1:
firstly, 25 percent of cerium oxide polishing powder and 75 percent of purified water are placed in a transparent container to be stirred and mixed to form polishing solution, then the density of the polishing solution is measured to be 1.042g/cm3 by a baume densimeter, so that the polishing solution has no corrosivity, the chemical reaction between a high-precision lens and the polishing solution can be effectively inhibited, the damage to the high-precision lens is avoided, the quality and the efficiency of polishing and grinding are improved, then the polishing solution with the density of 1.042g/cm3 is filled in the container, the polishing solution is pumped into a water pipe by a water pump, the polishing solution is uniformly sprayed onto the high-precision lens by adopting a spraying mode, redundant polishing solution can continuously flow into the container for recycling, the manufacturing cost is saved while the polishing solution is saved, the high-precision lens is easy to clean by adopting the spraying mode, and because the high-precision lens divides two surfaces of the high-precision lens into a large surface and a small surface according to the curvature radius of the two surfaces, the polishing solution is sprayed on the large surface and the small surface in sequence, the high-precision lens sprayed with the polishing solution is placed on the polishing equipment through a clamp, the small surface and the large surface are polished and ground in sequence by the polishing equipment, after the grinding is finished, the high-precision lens is placed in a cleaning tank, cleaning solution is poured into the cleaning tank, the cleaning solution is cleaned for 12-15min and then taken out and wiped, secondary polishing and grinding are needed because the surface smoothness of the high-precision lens polished and ground for the first time is poor, the polishing solution with the density of 1.042g/cm3 is sprayed on the large surface and the small surface of the high-precision lens again, the small surface and the large surface are polished and ground again by the polishing equipment, the smoothness of the high-precision lens is improved, the required smoothness grade is achieved, after the secondary polishing and grinding, the high-precision lens is placed in the cleaning tank again, and cleaning solution is poured into the cleaning tank, get out and clean after getting rid of the filth or the impurity on surface, improved the cleanliness factor of high accuracy lens to reached required cleanliness factor grade, after wasing once more, carry out multilayer vacuum coating through filming equipment according to the demand of high accuracy lens, obtain final finished product, thereby satisfied the technical requirement of high accuracy lens.
Example 2:
firstly, 20 percent of cerium oxide polishing powder and 80 percent of purified water are placed in a transparent container to be stirred and mixed to form polishing solution, then the density of the polishing solution is measured to be 1.034g/cm3 by a baume densimeter, so that the polishing solution has no corrosivity, the chemical reaction between a high-precision lens and the polishing solution can be effectively inhibited, and the high-precision lens is prevented from being damaged, thereby the quality and the efficiency of polishing and grinding are improved, then the polishing solution with the density of 1.034g/cm3 is sprayed on the high-precision lens, the high-precision lens is easy to clean, the high-precision lens is placed on polishing equipment through a clamp to be polished for the first time, after the grinding is finished, cleaning and wiping are carried out, then secondary polishing is carried out, the smoothness of the high-precision lens is improved, thereby the required smoothness grade is reached, after the secondary polishing and grinding, cleaning is carried out again, dirt or impurities on the surface are removed, and then the lens is taken out and wiped cleanly, the cleanliness of the high-precision lens is improved, so that the required cleanliness level is achieved, after cleaning is finished again, multilayer vacuum coating is carried out through coating equipment according to the requirement of the high-precision lens, a final finished product is obtained, and the technical requirement of the high-precision lens is met.
Example 3:
firstly, 30% of cerium oxide polishing powder and 70% of purified water are placed in a transparent container to be stirred and mixed to form polishing solution, then the density of the polishing solution is measured to be 1.049g/cm3 by a baume densimeter, so that the polishing solution has no corrosivity, the chemical reaction between a high-precision lens and the polishing solution can be effectively inhibited, and the high-precision lens is prevented from being damaged, thereby the quality and the efficiency of polishing and grinding are improved, then the polishing solution with the density of 1.049g/cm3 is sprayed on the high-precision lens, the high-precision lens is easy to clean, the high-precision lens is placed on polishing equipment through a clamp to be polished and ground for the first time, after the grinding is finished, the cleaning and the wiping are carried out, then the secondary polishing is carried out, the smoothness of the high-precision lens is improved, thereby the required smoothness grade is reached, after the secondary polishing and the cleaning is carried out again, dirt or impurities on the surface are removed, the cleaning is taken out and the cleaning is carried out, the cleanliness of the high-precision lens is improved, so that the required cleanliness level is achieved, after the high-precision lens is cleaned again, multilayer vacuum coating is carried out through coating equipment according to the requirement of the high-precision lens, a final finished product is obtained, and the technical requirement of the high-precision lens is met.
Claims (6)
1. A production method for processing a high-precision lens by using a novel polishing solution is characterized by comprising the following specific steps:
(1) stirring and mixing 20-30% of cerium oxide polishing powder and 70-80% of aqueous solution to prepare polishing solution, and measuring the density of the polishing solution by a baume densimeter;
(2) the prepared polishing solution is placed in a container and is uniformly sprayed on the high-precision lens through a water pump and a water pipe;
(3) placing the high-precision lens sprayed with the polishing solution on polishing equipment through a clamp for polishing and grinding;
(4) cleaning and wiping the polished high-precision lens to obtain a primary finished product;
(5) polishing and grinding the primary finished product in the steps (2) to (3);
(6) cleaning and wiping the high-precision lens polished again to remove dirt or impurities on the surface;
(7) and carrying out vacuum coating on the cleaned and impurity-removed high-precision lens by coating equipment to obtain a final finished product.
2. The method for producing a high-precision lens by using a novel polishing solution as claimed in claim 1, wherein in step 1, the water is purified water.
3. The method for producing a high-precision lens by using a novel polishing solution as claimed in claim 1, wherein in step 1, the density of the polishing solution is 1.03-1.05 g/cm 3.
4. The method for producing a high-precision lens by using a novel polishing solution as claimed in claim 1, wherein in step 4, the high-precision lens is placed in a cleaning tank, and a cleaning solution is poured into the cleaning tank, and is taken out for cleaning after 12-15 min.
5. The method as claimed in claim 1, wherein in step 5, if the surface smoothness of the finished lens is not good after the first polishing and grinding, a second polishing and grinding is required.
6. The method as claimed in claim 1, wherein in step 7, the vacuum coating can be one or more layers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110475046.9A CN113560989A (en) | 2021-04-29 | 2021-04-29 | Production method for processing high-precision lens by novel polishing solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110475046.9A CN113560989A (en) | 2021-04-29 | 2021-04-29 | Production method for processing high-precision lens by novel polishing solution |
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| CN113560989A true CN113560989A (en) | 2021-10-29 |
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| CN202110475046.9A Pending CN113560989A (en) | 2021-04-29 | 2021-04-29 | Production method for processing high-precision lens by novel polishing solution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114472367A (en) * | 2021-12-28 | 2022-05-13 | 深圳泰德激光技术股份有限公司 | Method and device for cleaning material and computer readable storage medium |
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| JP2002178249A (en) * | 2000-12-13 | 2002-06-25 | Canon Inc | Optical component machining method |
| JP2002187054A (en) * | 2000-12-20 | 2002-07-02 | Canon Inc | Method for working lens |
| CN110803859A (en) * | 2018-08-04 | 2020-02-18 | 江苏鸿晨集团有限公司 | Lens manufacturing process |
| CN211277768U (en) * | 2019-11-05 | 2020-08-18 | 昆明鑫利达光学制造有限公司 | Optical lens cold processing system |
| CN112338644A (en) * | 2020-10-30 | 2021-02-09 | 江苏汇鼎光学眼镜有限公司 | Lens surface treatment process |
| CN112548817A (en) * | 2019-12-30 | 2021-03-26 | 宁波大学 | Single polished silicon wafer substrate processing method suitable for infrared spectroscopic ellipsometry |
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2021
- 2021-04-29 CN CN202110475046.9A patent/CN113560989A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002178249A (en) * | 2000-12-13 | 2002-06-25 | Canon Inc | Optical component machining method |
| JP2002187054A (en) * | 2000-12-20 | 2002-07-02 | Canon Inc | Method for working lens |
| CN110803859A (en) * | 2018-08-04 | 2020-02-18 | 江苏鸿晨集团有限公司 | Lens manufacturing process |
| CN211277768U (en) * | 2019-11-05 | 2020-08-18 | 昆明鑫利达光学制造有限公司 | Optical lens cold processing system |
| CN112548817A (en) * | 2019-12-30 | 2021-03-26 | 宁波大学 | Single polished silicon wafer substrate processing method suitable for infrared spectroscopic ellipsometry |
| CN112338644A (en) * | 2020-10-30 | 2021-02-09 | 江苏汇鼎光学眼镜有限公司 | Lens surface treatment process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114472367A (en) * | 2021-12-28 | 2022-05-13 | 深圳泰德激光技术股份有限公司 | Method and device for cleaning material and computer readable storage medium |
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