CN110614552B - Double concave mirror grinding and polishing upper jig - Google Patents
Double concave mirror grinding and polishing upper jig Download PDFInfo
- Publication number
- CN110614552B CN110614552B CN201911045777.9A CN201911045777A CN110614552B CN 110614552 B CN110614552 B CN 110614552B CN 201911045777 A CN201911045777 A CN 201911045777A CN 110614552 B CN110614552 B CN 110614552B
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- CN
- China
- Prior art keywords
- clamping head
- connecting body
- biconcave lens
- polishing
- groove
- Prior art date
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- 238000005498 polishing Methods 0.000 title claims abstract description 34
- 238000007664 blowing Methods 0.000 claims abstract description 23
- 239000000843 powder Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 238000013016 damping Methods 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 230000009977 dual effect Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 238000005482 strain hardening Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- B24B13/00—Machines or devices designed for grinding or polishing optical surfaces on lenses or surfaces of similar shape on other work; Accessories therefor
- B24B13/005—Blocking means, chucks or the like; Alignment devices
- B24B13/0052—Lens block moulding devices
-
- 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
- B24B13/005—Blocking means, chucks or the like; Alignment devices
- B24B13/0057—Deblocking of lenses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a double-concave mirror grinding and polishing upper jig, and belongs to the technical field of double-concave mirror grinding and polishing. The double concave mirror grinding and polishing upper jig comprises a clamping head and a connecting body; the top end of the clamping head is provided with a circular groove, and the bottom surface of the circular groove is a circular arc boss; a plurality of air blowing channels are arranged in the connecting body, the air blowing channels penetrate through the connecting body and the clamping head, the biconcave lens is blown down onto the grinding head at the lower end by utilizing air blown out of the air blowing channels, and the biconcave lens is directly grabbed by a mechanical arm, so that full-automatic production can be realized, and the production efficiency is greatly improved; the side wall of the clamping head is uniformly provided with a plurality of inclined grooves, each inclined groove is provided with a drain hole for discharging polishing powder at the edge, and the occurrence of sub-Si distortion at the edge of the biconcave lens is effectively avoided; the side wall of the connector is provided with two sealing grooves, and the center of the tail end of the connector is provided with a positioning cone groove; an O-shaped ring is placed in the sealing groove and can be rapidly positioned and connected with an external upper shaft.
Description
Technical Field
The invention relates to the technical field of grinding and polishing of a double concave mirror, in particular to an upper fixture for grinding and polishing of a double concave mirror.
Background
In recent years, with the technical progress in the optical-mechanical-electrical field, new products such as various scanners, projectors, digital cameras, etc. have been increasingly demanded for optical lenses, and the precision requirements have been increased. Therefore, the productivity is continuously improved, and the development automation is a development subject which must be sought by the optical cold working industry. Professional robots or mechanical arms are additionally arranged on the grinding and polishing machine aiming at the spherical center lower hem, so that the problem of workpiece transfer in each processing cavity can be effectively solved, hands are liberated, the production cost is reduced, and the production efficiency is improved. In the grinding and polishing process of the spherical lens, the quality (applicable and inapplicable, stable and unstable) of the upper fixture determines whether the aperture and the inferior of the lens can be processed, in other words, the output of the good lens is absolutely influenced. Through the special tool of pertinence design, the main shaft structure of full-automatic accurate spherical center lower hem grinding polisher after can adapt transform better, can simulate the state of manual operation as far as moreover, avoid the bad factor in the automatic course of working.
The existing traditional standard sphere center lower hem grinding and polishing machine has the following problems:
1. The automatic lower pendulum machine mainly depends on the fact that lenses are manually placed in an upper jig and transferred in a polishing cavity of equipment, and an upper jig and an upper shaft are required to be connected, so that a manipulator can conveniently take, place and replace the lenses, and conventionally the upper jig and the upper shaft cannot be connected;
2. conventionally, the jig and the lens are separated by manual operation, so that the production efficiency is low;
3. For a biconcave lens with a concave surface and no platform, polishing powder is easy to accumulate at the edge of the lens in the upper jig under the action of centrifugal force during processing, so that the subs distortion is caused.
Disclosure of Invention
The invention aims to provide a double concave mirror grinding and polishing upper jig, which solves the problems that the existing universal upper jig cannot be connected with an upper shaft, the efficiency of manually separating a lens is low, and polishing powder is easy to accumulate at the edge of the lens to cause sub-Si distortion.
In order to solve the technical problems, the invention provides a double concave mirror grinding and polishing upper fixture which comprises a clamping head and a connecting body, wherein the connecting body is positioned at the tail end of the clamping head and is used for connecting an external upper shaft;
The top end of the clamping head is provided with a circular groove, and the bottom surface of the circular groove is a circular arc boss;
a plurality of air blowing channels are arranged in the connecting body, and penetrate through the connecting body and the clamping head;
The side wall of the clamping head is uniformly provided with a plurality of inclined grooves for discharging polishing powder at the edge.
Optionally, two seal grooves are formed in the side wall of the connector, and O-shaped rings are placed in the seal grooves and can be connected with an external upper shaft.
Optionally, a positioning cone groove is further formed in the center of the tail end of the connector, so that the connector and the external upper shaft can be positioned rapidly.
Optionally, the air blowing channel is provided with three air blowing channels and evenly surrounds the periphery of the positioning cone groove, and the air blowing channel is connected with an external air blowing mechanism.
Optionally, the biconcave lens is placed in the circular groove, and the depth of the circular groove is half of the thickness of the edge of the biconcave lens.
Optionally, a damping cloth is arranged between the biconcave lens and the circular arc-shaped boss, the damping cloth is fixedly connected to the circular arc-shaped boss, and the biconcave lens is adsorbed on the surface of the damping cloth through negative pressure.
Optionally, chip removing holes are formed in the chute, the chip removing holes penetrate through the clamping head, and polishing powder and grinding scraps are discharged by utilizing centrifugal force.
The invention provides a double concave mirror grinding and polishing upper fixture which comprises a clamping head and a connecting body, wherein the connecting body is positioned at the tail end of the clamping head and is used for connecting an external upper shaft; the top end of the clamping head is provided with a circular groove, and the bottom surface of the circular groove is a circular arc boss; a plurality of air blowing channels are arranged in the connecting body, the air blowing channels penetrate through the connecting body and the clamping head, the biconcave lens is blown down onto the grinding head at the lower end by utilizing air blown out of the air blowing channels, and the biconcave lens is directly grabbed by a mechanical arm, so that full-automatic production can be realized, and the production efficiency is greatly improved; the side wall of the clamping head is uniformly provided with a plurality of inclined grooves, each inclined groove is provided with a drain hole for discharging polishing powder at the edge, and the occurrence of sub-Si distortion at the edge of the biconcave lens is effectively avoided; the side wall of the connector is provided with two sealing grooves, and the center of the tail end of the connector is provided with a positioning cone groove; an O-shaped ring is placed in the sealing groove and can be rapidly positioned and connected with an external upper shaft.
Drawings
FIG. 1 is a schematic diagram of a dual concave mirror polishing upper jig according to the present invention;
FIG. 2 is a partial cross-sectional view of a dual concave mirror lapping and polishing upper jig provided by the invention;
FIG. 3 is a full sectional view of the dual concave mirror lapping and polishing upper jig provided by the invention;
FIG. 4 is a full sectional view of the biconcave lens clamped by the upper fixture for polishing and grinding the biconcave lens;
Fig. 5 is a top view of a dual concave mirror polishing upper fixture according to the present invention.
Detailed Description
The invention provides a dual concave mirror grinding and polishing upper fixture which is further described in detail below with reference to the accompanying drawings and specific embodiments. Advantages and features of the invention will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
The invention provides a double concave mirror grinding and polishing upper fixture, which is shown in figures 1-3 and comprises a clamping head 1 and a connecting body 2, wherein the connecting body 2 is positioned at the tail end of the clamping head 1 and is used for connecting an external upper shaft; a circular groove 11 is formed in the top end of the clamping head 1, and the bottom surface of the circular groove 11 is a circular arc-shaped boss 12; a plurality of air blowing channels 3 are arranged in the connecting body 2, and the air blowing channels 3 penetrate through the connecting body 2 and the clamping head 1; the side wall of the clamping head 1 is uniformly provided with a plurality of chute 6 for discharging polishing powder at the edge.
Specifically, as shown in fig. 4, a damping cloth 8 is disposed between the biconcave lens 7 and the circular arc-shaped boss 12, the damping cloth 8 is fixedly connected to the circular arc-shaped boss 12, the biconcave lens 7 is adsorbed on the surface of the damping cloth 8 through negative pressure, so that when the lower end grinding head polishes the concave surface of the biconcave lens 7, the biconcave lens 7 and the clamping head 1 rotate along with each other, but the speed is far less than the rotating speed of the lower end grinding head.
Further, referring to fig. 1 to 4, two sealing grooves 4 are formed on the side wall of the connector 2, and an O-ring is placed in the sealing groove 4 to be capable of connecting with an external upper shaft; the center of the tail end of the connecting body 2 is also provided with a positioning cone groove 5 which can rapidly position the connecting body 2 and the external upper shaft, and the structure can rapidly position, connect and fix the double concave mirror grinding and polishing upper fixture and the external upper shaft; the three air blowing channels 3 are uniformly arranged around the positioning cone groove 5, the air blowing channels 3 are connected with an external air blowing mechanism, air blown by the air blowing mechanism passes through the air blowing channels 3, so that the biconcave lens 7 is separated from the damping cloth 8, the biconcave lens 7 falls on the lower end grinding head, and finally the manipulator grabs and changes the biconcave lens, thereby realizing full-automatic production and improving the production efficiency; the chute 6 is provided with a chip removal hole 61, the chip removal hole 61 penetrates through the clamping head 1, polishing powder and grinding scraps are discharged by utilizing centrifugal force, and the phenomenon that the polishing powder is accumulated on the edge of the biconcave lens 7 to cause the subsurful distortion on the edge of the biconcave lens 7 can be effectively avoided.
Specifically, as shown in fig. 2 and 5, eight chute 6 are provided and uniformly distributed on the chuck 1, and eight chute 6 are provided with eight chip removal holes 61, so that timely discharge of polishing powder is ensured to the greatest extent, and sub-si distortion at the edge of the biconcave lens 7 is avoided.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (1)
1. The double concave mirror grinding and polishing upper fixture is characterized by comprising a clamping head (1) and a connecting body (2), wherein the connecting body (2) is positioned at the tail end of the clamping head (1) and is used for connecting an external upper shaft;
a circular groove (11) is formed in the top end of the clamping head (1), and the bottom surface of the circular groove (11) is a circular arc-shaped boss (12);
a plurality of blowing air channels (3) are arranged in the connecting body (2), and the blowing air channels (3) penetrate through the connecting body (2) and the clamping head (1);
A plurality of inclined grooves (6) are uniformly distributed on the side wall of the clamping head (1) and are used for discharging polishing powder at the edge;
two sealing grooves (4) are formed in the side wall of the connecting body (2), and O-shaped rings are arranged in the sealing grooves (4) and can be connected with an external upper shaft;
A positioning cone groove (5) is formed in the center of the tail end of the connector (2), so that the connector (2) and an external upper shaft can be positioned rapidly;
The three blowing air passages (3) are uniformly surrounded around the positioning cone groove (5), and the blowing air passages (3) are connected with an external blowing mechanism;
A biconcave lens (7) is arranged in the circular groove (11), and the depth of the circular groove (11) is half of the thickness of the edge of the biconcave lens (7);
A damping cloth (8) is arranged between the biconcave lens (7) and the circular arc-shaped boss (12), the damping cloth (8) is fixedly connected to the circular arc-shaped boss (12), and the biconcave lens (7) is adsorbed on the surface of the damping cloth (8) through negative pressure;
a chip removal hole (61) is formed in the chute (6), the chip removal hole (61) penetrates through the clamping head (1), and polishing powder and grinding scraps are discharged by utilizing centrifugal force;
eight chute (6) are arranged and evenly distributed on the clamping head (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911045777.9A CN110614552B (en) | 2019-10-30 | 2019-10-30 | Double concave mirror grinding and polishing upper jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911045777.9A CN110614552B (en) | 2019-10-30 | 2019-10-30 | Double concave mirror grinding and polishing upper jig |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110614552A CN110614552A (en) | 2019-12-27 |
| CN110614552B true CN110614552B (en) | 2024-06-25 |
Family
ID=68927096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911045777.9A Active CN110614552B (en) | 2019-10-30 | 2019-10-30 | Double concave mirror grinding and polishing upper jig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110614552B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111299733A (en) * | 2020-03-30 | 2020-06-19 | 常州工学院 | A rotary air chuck for electrolytic grinding and boring machine tools |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300660A (en) * | 1999-12-17 | 2001-06-27 | 佳能株式会社 | Clamp for grinding or polishing optical elements |
| CN204954545U (en) * | 2015-08-31 | 2016-01-13 | 成都光明光学元件有限公司 | Heavy -calibre is similar to half ball lens burnishing device |
| CN205817592U (en) * | 2016-07-20 | 2016-12-21 | 绍兴市上虞春晖内燃机配件有限公司 | A kind of alloy sheet grinding collet |
| CN106378687A (en) * | 2016-11-08 | 2017-02-08 | 漳州盈塑工业有限公司 | Spline shaft structure applicable to end face polishing operation of work piece, and polishing equipment |
| CN210731995U (en) * | 2019-10-30 | 2020-06-12 | 江苏北方湖光光电有限公司 | Double-concave mirror grinding and polishing upper jig |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2863520B1 (en) * | 2003-12-10 | 2007-02-16 | Essilor Int | PNEUMATIC LOCKING MEDIUM OF AN OPTICAL LENS |
-
2019
- 2019-10-30 CN CN201911045777.9A patent/CN110614552B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300660A (en) * | 1999-12-17 | 2001-06-27 | 佳能株式会社 | Clamp for grinding or polishing optical elements |
| CN204954545U (en) * | 2015-08-31 | 2016-01-13 | 成都光明光学元件有限公司 | Heavy -calibre is similar to half ball lens burnishing device |
| CN205817592U (en) * | 2016-07-20 | 2016-12-21 | 绍兴市上虞春晖内燃机配件有限公司 | A kind of alloy sheet grinding collet |
| CN106378687A (en) * | 2016-11-08 | 2017-02-08 | 漳州盈塑工业有限公司 | Spline shaft structure applicable to end face polishing operation of work piece, and polishing equipment |
| CN210731995U (en) * | 2019-10-30 | 2020-06-12 | 江苏北方湖光光电有限公司 | Double-concave mirror grinding and polishing upper jig |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110614552A (en) | 2019-12-27 |
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