CN112157497A - Precision grinding and polishing method for inner hole of large-diameter glass cylindrical window - Google Patents
Precision grinding and polishing method for inner hole of large-diameter glass cylindrical window Download PDFInfo
- Publication number
- CN112157497A CN112157497A CN202011012339.5A CN202011012339A CN112157497A CN 112157497 A CN112157497 A CN 112157497A CN 202011012339 A CN202011012339 A CN 202011012339A CN 112157497 A CN112157497 A CN 112157497A
- Authority
- CN
- China
- Prior art keywords
- polishing
- window
- grinding
- die
- milling
- Prior art date
- 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.)
- Granted
Links
Images
Classifications
-
- 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
- B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
- B24B5/36—Single-purpose machines or devices
- B24B5/48—Single-purpose machines or devices for grinding walls of very fine holes, e.g. in drawing-dies
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
The application provides a precision grinding and polishing method for an inner hole of a large-diameter glass cylindrical window, which comprises the following steps: coating protection: uniformly coating protective paint on the outer wall surface of the window and sticking a protective layer on the protective paint surface; rigid clamping: bonding the outer wall surface of the window with the protective layer and the inner wall of the hollow columnar clamp; milling and grinding: placing the clamp bonded with the window on a milling machine to mill the inner wall surface of the window; polishing: placing the clamp bonded with the window on a polishing machine, and polishing by using a first elastic polishing die arranged on a polishing shaft; carrying out bottom wall: the polished window is heated to the lower plate.
Description
Technical Field
The disclosure particularly discloses a precision grinding and polishing method for an inner hole of a large-diameter glass cylindrical window.
Background
The large-caliber (diameter phi 160mm) optical glass cylindrical window is a key element of an outdoor precise optical observation and detection system, and the main technical requirement is that the inner circle and the outer circle are strictly controlled to have equal thickness; the internal and external surface polishing not only needs to ensure the surface roughness, but also needs to meet the surface shape precision requirement. At present, various methods can be used for processing the excircle; the precision grinding and polishing of the inner hole is an industry difficulty.
Disclosure of Invention
In view of the above-mentioned defect or not enough among the prior art, this application aims at providing one kind and compares in prior art, can enough solve the precision grinding polishing problem of great size glass cylinder window hole, can reduce the uniform thickness error of window inner and outer circle and can guarantee the big-calibre glass cylinder window hole precision grinding polishing method of window hole shape of face precision again to the at utmost simultaneously.
A precision grinding and polishing method for an inner hole of a large-diameter glass cylindrical window comprises the following steps: coating protection: uniformly coating protective paint on the outer wall surface of the window and sticking a protective layer on the protective paint surface; rigid clamping: bonding the outer wall surface of the window with the protective layer and the inner wall of the hollow columnar clamp; milling and grinding: placing the clamp bonded with the window on a milling machine to mill the inner wall surface of the window; polishing: placing the clamp bonded with the window on a polishing machine, and polishing by using a first elastic polishing die arranged on a polishing shaft; carrying out bottom wall: the polished window is heated to the lower plate.
According to the technical scheme provided by the embodiment of the application, in the milling step, a milling shaft of the milling and grinding machine tool is matched and connected with a disc-shaped diamond grinding wheel milling and grinding window inner wall surface for milling and grinding.
According to the technical solution provided by the embodiment of the present application, in the polishing step, after polishing with the first elastic polishing mold disposed on the polishing shaft, the method further includes: and repairing and polishing by using a second elastic polishing die which is lower than the first elastic polishing die and is arranged on the polishing shaft.
According to the technical scheme provided by the embodiment of the application, the first elastic polishing die comprises: the first die piece is fixedly connected to a polishing shaft on the polishing machine bed, and the first die piece is further provided with first polyurethane polishing sheets which are distributed on the side wall of the first die piece in an annular array mode and are adhered to the side wall of the first die piece through a first elastic block.
According to the technical solution provided by the embodiment of the present application, the second elastic polishing mold includes: and the second die part is fixedly connected to a polishing shaft on the polishing machine bed, and second polyurethane polishing sheets which are distributed on the side wall of the second die part in an annular array and are adhered to the side wall of the second die part through a second elastic block are further arranged on the second die part. The first polyurethane polishing sheet has a height greater than a height of the second polyurethane polishing sheet.
According to the technical scheme provided by the embodiment of the application, after the milling step and before the polishing step, the milled window and the clamp are cleaned together.
According to the technical scheme provided by the embodiment of the application, the protective layer pasted on the protective paint surface is a protective adhesive tape.
In summary, the present application provides specific steps of a method for precisely grinding and polishing an inner hole of a large-diameter glass cylindrical window. In order to ensure the surface roughness and the surface shape precision of the large-caliber glass cylindrical window after the inner hole is processed; the equal thickness error of the inner circle and the outer circle of the large-caliber glass cylindrical window is ensured to be minimum; realize even and high-efficient of polishing, technical scheme in this application, on the one hand, adopts the rigidity excircle anchor clamps bonding that the form and position size has been accurately controlled the cylinder window of polished good excircle, makes the axle center and the coincidence of processing equipment main shaft of anchor clamps, has guaranteed that the uniform thickness error of window inside and outside circle is minimum. On the other hand, a numerical control milling machine tool is adopted to precisely mill the inner surface of the window by a disc-shaped diamond grinding wheel; and polishing the inner surface of the milled window by using a first elastic polishing die. Furthermore, the technical scheme further adopts a second elastic polishing die to polish the inner surface of the polished window.
Based on the specific step design, the elastic polishing dies with different heights are designed to respectively perform precise polishing and local error correction on the inner surface of the cylindrical window, and finally, the precise grinding and polishing of the inner hole of the large-diameter glass cylindrical window are completed. The invention solves the technical problems of the grinding and polishing surface roughness of the inner hole of the window, the grade of optical defects and the ultra-poor surface shape precision of the surface in process; the problem that the inner circle and the outer circle are concentric, namely the equal thickness error is difficult to eliminate is solved. The effects of stable quality, improved efficiency and reduced cost in mass production are realized.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 is a schematic view of a window structure.
Fig. 2 is a schematic structural view showing the bonding of the outer wall surface of the window to the hollow cylindrical jig.
Fig. 3 is an operational view of the milling process.
FIG. 4 is a schematic diagram of the operation of the polishing process
Fig. 4a is a schematic structural view of a first elastic polishing mold.
FIG. 5 is a schematic diagram of the operation of the polishing process.
Fig. 5a is a schematic structural view of a second elastic polishing mold.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
A precision grinding and polishing method for an inner hole of a large-diameter glass cylindrical window comprises the following steps:
coating protection: and uniformly coating protective paint on the surface of the outer wall of the window 10 and sticking a protective layer on the protective paint surface. The view window 10 shown in fig. 1 is a schematic structural diagram.
Rigid clamping: the outer wall surface of the window 10 with the protective layer adhered thereon is adhered to the inner wall of the hollow columnar jig. Fig. 2 shows a schematic structure of the outer wall surface of the window 10 bonded to the hollow cylindrical jig 20. Preferably, the clamp 20 comprises: the hollow columnar clamp body and the fixing ring 21 arranged at the edge of the bottom of the clamp body are used for being conveniently connected with a milling and grinding machine tool or a polishing machine tool on the fixing ring 21.
Milling and grinding: placing the clamp 20 adhered with the window 10 on a milling machine to mill the inner wall surface of the window 10; the operation of the milling process is schematically illustrated in fig. 3.
Optionally, in the milling step, a milling shaft 30 of the milling machine tool is adapted with a diamond grinding disk 40 for milling to mill the inner wall surface of the window 10. In the milling process, the clamp 20 with the window 10 adhered on the milling and grinding machine rotates anticlockwise; the disc-shaped diamond grinding wheel rotates clockwise; meanwhile, the disc-shaped diamond grinding wheel moves up and down along the axial direction.
In this step, the removal amount by milling and grinding is 0.5 mm.
Polishing: the jig 20 with the window 10 adhered thereto is placed on a polishing machine and polished by a first elastic polishing mold 60 provided on a polishing shaft 50. As shown in the operational diagram of the polishing process of fig. 4. In the whole polishing process, the polishing removal amount is 0.3-0.4 mm.
Alternatively, in the polishing step, after polishing is performed by using the first elastic polishing mold 60 provided on the polishing shaft 50, the operation of the polishing process is schematically illustrated in fig. 5. Further comprising: the dressing is performed using a second elastic polishing mold 70 having a height lower than that of the first elastic polishing mold 60 and provided on the polishing shaft 50.
Carrying out bottom wall: the polished window 10 heats the lower disc.
In either preferred embodiment, a schematic view of the first elastomeric polishing mold 60 is shown in FIG. 4 a. The first elastic polishing mold 60 includes: the first mold element 61 is fixedly connected to the polishing shaft 50 of the polishing machine, and the first mold element 61 is further provided with a first polyurethane polishing sheet 62 distributed on the side wall of the first mold element in an annular array and adhered to the side wall of the first mold element through a first elastic block (not shown).
This embodiment provides the structure of the first elastic polishing mold, and in the polishing process, in view of the longer first polyurethane polishing sheet 62, the efficient polishing work can be realized, and the uniformity and the efficiency of polishing can be realized, compared with the prior art.
In either preferred embodiment, a schematic diagram of the structure of the second elastomeric polishing mold 70 is shown in FIG. 5 a. The second elastic polishing mold 70 includes: a second mold member 71 fixed to the polishing shaft 50 of the polishing machine, wherein the second mold member 71 further has a second polyurethane polishing sheet 72 disposed on a side wall thereof in an annular array and adhered to the side wall of the second mold member by a second elastic block (not shown).
Compared with the structure of the first elastic polishing die, the structure of the second elastic polishing die provided by the embodiment has the advantages that the second elastic polishing die with lower height is used for precisely polishing the inner surface of the cylindrical window so as to correct local errors, and the surface shape precision of the inner hole of the window is ensured.
The first polyurethane polishing sheet has a height greater than a height of the second polyurethane polishing sheet.
In any preferred embodiment, after the milling step and before the polishing step, the milled window 10 and the fixture 20 are cleaned together.
In any preferred embodiment, the protective layer adhered on the protective paint surface is a protective adhesive tape.
The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.
Claims (7)
1. A precision grinding and polishing method for an inner hole of a large-diameter glass cylindrical window is characterized by comprising the following steps:
the method comprises the following steps:
coating protection: uniformly coating protective paint on the outer wall surface of the window and sticking a protective layer on the protective paint surface;
rigid clamping: bonding the outer wall surface of the window with the protective layer and the inner wall of the hollow columnar clamp;
milling and grinding: placing the clamp bonded with the window on a milling machine to mill the inner wall surface of the window;
polishing: placing the clamp bonded with the window on a polishing machine, and polishing by using a first elastic polishing die arranged on a polishing shaft;
carrying out bottom wall: the polished window is heated to the lower plate.
2. The precision grinding and polishing method for the inner hole of the large-caliber glass cylinder window as claimed in claim 1, characterized in that:
in the milling step, a milling shaft of the milling and grinding machine tool is matched and connected with a disc-shaped diamond grinding wheel milling and grinding surface of the inner wall of the window for milling and grinding.
3. The method for precisely grinding and polishing the inner hole of the large-caliber glass cylindrical window according to claim 1, wherein the method comprises the following steps:
in the polishing step, after polishing with the first elastic polishing mold provided on the polishing shaft, the method further includes: and repairing and polishing by using a second elastic polishing die which is lower than the first elastic polishing die and is arranged on the polishing shaft.
4. The method for precisely grinding and polishing the inner hole of the large-caliber glass cylinder window as claimed in claim 3, wherein the method comprises the following steps:
the first elastomeric polishing die comprises: the first die piece is fixedly connected to a polishing shaft on the polishing machine bed, and the first die piece is further provided with first polyurethane polishing sheets which are distributed on the side wall of the first die piece in an annular array mode and are adhered to the side wall of the first die piece through a first elastic block.
5. The method for precisely grinding and polishing the inner hole of the large-caliber glass cylinder window as claimed in claim 3, wherein the method comprises the following steps:
the second elastomeric polishing die comprises: and the second die part is fixedly connected to a polishing shaft on the polishing machine bed, and second polyurethane polishing sheets which are distributed on the side wall of the second die part in an annular array and are adhered to the side wall of the second die part through a second elastic block are further arranged on the second die part.
The first polyurethane polishing sheet has a height greater than a height of the second polyurethane polishing sheet.
6. The method for precisely grinding and polishing the inner hole of the large-caliber glass cylinder window according to any one of claims 1 to 5, wherein:
after the milling step and before the polishing step, the milled window and the fixture are cleaned together.
7. The method for precisely grinding and polishing the inner hole of the large-caliber glass cylinder window according to any one of claims 1 to 5, wherein:
the protective layer pasted on the protective paint surface is a protective adhesive tape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011012339.5A CN112157497B (en) | 2020-09-24 | 2020-09-24 | Precision grinding and polishing method for inner hole of large-diameter glass cylindrical window |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011012339.5A CN112157497B (en) | 2020-09-24 | 2020-09-24 | Precision grinding and polishing method for inner hole of large-diameter glass cylindrical window |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112157497A true CN112157497A (en) | 2021-01-01 |
| CN112157497B CN112157497B (en) | 2022-06-10 |
Family
ID=73863553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011012339.5A Active CN112157497B (en) | 2020-09-24 | 2020-09-24 | Precision grinding and polishing method for inner hole of large-diameter glass cylindrical window |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112157497B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6219363A (en) * | 1985-07-16 | 1987-01-28 | F S K:Kk | Polishing inner surface of small hole |
| 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 |
| CN101797707A (en) * | 2010-04-09 | 2010-08-11 | 中国科学院光电技术研究所 | Large-caliber optical primary mirror bore finish machining device |
| CN203449132U (en) * | 2013-09-06 | 2014-02-26 | 福耀玻璃（重庆）配件有限公司 | Glass inner hole pneumatic grinding machine |
| CN204277670U (en) * | 2014-11-05 | 2015-04-22 | 睿志达光电(深圳)有限公司 | Glass circular hole polishing machine |
| CN107953239A (en) * | 2017-12-20 | 2018-04-24 | 中建材衢州金格兰石英有限公司 | The inner bore honing device and its honing method of a kind of quartz glass tube |
| CN108340213A (en) * | 2018-03-08 | 2018-07-31 | 信阳市宏远光学仪器有限公司 | The processing unit (plant) and optical mirror slip of a kind of processing method of optical mirror slip, optical mirror slip |
| CN109623558A (en) * | 2018-12-04 | 2019-04-16 | 天津津航技术物理研究所 | A kind of method for precisely forming of off-axis aspheric surface lens |
| CN209812006U (en) * | 2019-05-06 | 2019-12-20 | 深圳市智创谷技术有限公司 | Electrodeless aligning glass hole burnishing machine |
| CN110666684A (en) * | 2019-10-04 | 2020-01-10 | 北海市龙浩光电科技有限公司 | Cutter for deep processing 2.5D and 3D glass panels |
-
2020
- 2020-09-24 CN CN202011012339.5A patent/CN112157497B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6219363A (en) * | 1985-07-16 | 1987-01-28 | F S K:Kk | Polishing inner surface of small hole |
| 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 |
| CN101797707A (en) * | 2010-04-09 | 2010-08-11 | 中国科学院光电技术研究所 | Large-caliber optical primary mirror bore finish machining device |
| CN203449132U (en) * | 2013-09-06 | 2014-02-26 | 福耀玻璃（重庆）配件有限公司 | Glass inner hole pneumatic grinding machine |
| CN204277670U (en) * | 2014-11-05 | 2015-04-22 | 睿志达光电(深圳)有限公司 | Glass circular hole polishing machine |
| CN107953239A (en) * | 2017-12-20 | 2018-04-24 | 中建材衢州金格兰石英有限公司 | The inner bore honing device and its honing method of a kind of quartz glass tube |
| CN108340213A (en) * | 2018-03-08 | 2018-07-31 | 信阳市宏远光学仪器有限公司 | The processing unit (plant) and optical mirror slip of a kind of processing method of optical mirror slip, optical mirror slip |
| CN109623558A (en) * | 2018-12-04 | 2019-04-16 | 天津津航技术物理研究所 | A kind of method for precisely forming of off-axis aspheric surface lens |
| CN209812006U (en) * | 2019-05-06 | 2019-12-20 | 深圳市智创谷技术有限公司 | Electrodeless aligning glass hole burnishing machine |
| CN110666684A (en) * | 2019-10-04 | 2020-01-10 | 北海市龙浩光电科技有限公司 | Cutter for deep processing 2.5D and 3D glass panels |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112157497B (en) | 2022-06-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5951374A (en) | Method of polishing semiconductor wafers | |
| TW201029797A (en) | Lens processing method and grinding device | |
| US6224467B1 (en) | Method of producing ocular lens and holders for holding lens blank during cutting thereof | |
| US3860399A (en) | Liquid blocking technique for working a member to precise optical tolerances | |
| CN112157497B (en) | Precision grinding and polishing method for inner hole of large-diameter glass cylindrical window | |
| CN111149161B (en) | Spacer, laminated body of substrate, method for manufacturing substrate, and method for manufacturing substrate for magnetic disk | |
| CN113198697B (en) | Fixture and method for positioning workpiece and processing method of optical element | |
| JP3493208B2 (en) | Method of manufacturing plate having flat main surface and method of manufacturing plate having two parallel main surfaces | |
| CN102172868B (en) | Air floating big-calibre plane optical element polishing clamp | |
| WO2010119606A1 (en) | Method of preparing polishing head and polishng apparatus | |
| CN114619297B (en) | Processing technology of right-angle prism side sag 10' | |
| CN214771339U (en) | Clamp for positioning workpiece | |
| CN216066803U (en) | Upper plate fixture of zinc selenide meniscus lens | |
| JP5598231B2 (en) | Polishing object loading jig, polishing method for polishing object, and manufacturing method of glass substrate for magnetic disk | |
| CN115229435A (en) | Machining method for ensuring chromium plating outer diameter of thin-wall slender guide cylinder | |
| JPS597561A (en) | Jig for simultaneously machining plural works | |
| CN219026979U (en) | High-precision low-deformation infrared lens polishing device | |
| US6634933B2 (en) | Method, jig, and apparatus for machining rod lenses | |
| CN219837559U (en) | Backing plate for processing plane glass | |
| CN114229044A (en) | Method for preparing heat-proof suit of revolving body | |
| JP2008254152A (en) | Bell clamp type lens holder, and manufacturing method for optical element | |
| JPH04261768A (en) | Double-side lapping device | |
| JP2008198285A (en) | Manufacturing method of glass substrate for magnetic disk, and manufacturing method of magnetic disk | |
| CN117754322A (en) | Axial clamping force adjustable tool for thin-wall workpiece and application method thereof | |
| JP3715937B2 (en) | Optical material holding jig and optical material polishing method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |