CN219301475U - Concave-convex lens clamp and concave-convex lens center thickness measuring device - Google Patents
Concave-convex lens clamp and concave-convex lens center thickness measuring device Download PDFInfo
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- CN219301475U CN219301475U CN202320381735.8U CN202320381735U CN219301475U CN 219301475 U CN219301475 U CN 219301475U CN 202320381735 U CN202320381735 U CN 202320381735U CN 219301475 U CN219301475 U CN 219301475U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
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Abstract
The utility model discloses a concave-convex lens clamp and a device for measuring the thickness of the center of the concave-convex lens, wherein the concave-convex lens clamp comprises a clamp main body with an inner cavity for placing the concave-convex lens, when the concave-convex lens is positioned in the clamp main body, the concave-convex lens and the clamp main body are in clearance fit, so that the concave-convex lens and the clamp main body are coaxially arranged, a positioning piece is arranged on the clamp main body, and a positioning hole for enabling a measuring head of a digital display indicator to vertically pass through is formed in the top surface of the positioning piece. The fixture provided by the utility model can limit the concave-convex lens, and the lens is coaxially arranged when being positioned in the fixture main body, so that the thickness of the center of the lens is measured when the measuring head of the digital display indicator passes through the positioning hole or vertically abuts against the lens in the fixture main body according to the path of the original positioning hole, the accuracy of measured data is ensured, the measuring head and the center of the lens can be quickly aligned (positioned) through the positioning hole, and the digital display indicator measuring head or the lens does not need to be repeatedly moved and adjusted.
Description
Technical Field
The utility model relates to a concave-convex lens clamp and a concave-convex lens center thickness measuring device.
Background
In the technical field of optical lens manufacturing, the processing precision of lens dimension parameters has a decisive meaning on optical performance, and whether the processing precision meets the design requirement or not, accurate data must be obtained through relevant detection. The center thickness of the lens is taken as a critical dimension, the precision control is very important, and the precision measurement is an important link.
After the optical lens product is produced, the center thickness of the lens needs to be measured to verify whether it is acceptable. The structure of the concave-convex lens is characterized in that the maximum thickness point is positioned on the central optical axis of the lens, the central thickness of the concave-convex lens is generally measured by a dial indicator altimeter at present, the lens position is required to be moved and adjusted for multiple times so as to find the vertex of the concave cambered surface, time is relatively wasted, and the measuring head can be contacted with the light-transmitting surface of the lens for multiple times in the multiple moving process, so that scratches are easy to form and the product is scrapped.
It is therefore necessary to design a special device to solve the problem of measuring the thickness of the center of the meniscus.
Disclosure of Invention
The utility model mainly aims to provide the concave-convex lens clamp and the concave-convex lens center thickness measuring device, which are convenient for positioning a measured lens and further improve the accuracy and the high efficiency of measured data.
The aim of the utility model can be achieved by adopting the following technical scheme:
the utility model provides a meniscus lens anchor clamps, includes the anchor clamps main part that has an inner chamber that is used for placing meniscus lens, meniscus lens is when being located the anchor clamps main part, and above-mentioned two are clearance fit to make meniscus lens and the coaxial setting of anchor clamps main part, be provided with the setting element in the anchor clamps main part, the top surface of setting element runs through has the locating hole that is used for making the vertical pass of digital display indicator gauge head, locating hole and the coaxial setting of anchor clamps main part are also can vertically support in the center department that is located the meniscus lens of anchor clamps main part in order to make the digital display indicator gauge head that can pass the locating hole.
Preferably, a cushion block for supporting the meniscus lens is arranged in the clamp main body.
Preferably, a caulking groove is formed in the inner bottom side surface of the clamp main body, the cushion block is arranged in the caulking groove, and the top surface of the cushion block is higher than the top surface of the caulking groove.
Preferably, the cushion block is a glass cushion block.
Preferably, the locating piece bottom surface has seted up the spacing groove that is used for holding anchor clamps main part top, spacing groove and locating hole link up each other.
The utility model provides a measuring device of meniscus center thickness, includes the instruction table rack, be provided with the holder on the instruction table rack, the one end of holder is provided with the digital display instruction table, be provided with the anchor clamps between instruction table rack and the digital display instruction table, the digital display instruction table is including digital display table head, measuring staff and gauge head, the gauge head is used for supporting the center department of meniscus in the anchor clamps main part.
Preferably, the indicator stand comprises a base, stand columns and a measuring platform, wherein the stand columns and the measuring platform are arranged on the base, a positioning seat is arranged at the top of the measuring platform, a first through hole is formed in the top surface of the positioning seat, and the clamp is arranged in the first through hole of the positioning seat so as to limit the clamp to deviate along the horizontal direction.
Preferably, the positioning seat is sleeved on the outer peripheral side of the measuring platform, and the positioning seat is fixedly connected with the measuring platform through a fixing screw.
Preferably, a space is reserved between the inner side wall of the positioning seat and the outer side wall of the measuring platform.
Preferably, the surface of the measuring head, which is used for contacting with the concave-convex lens, is a spherical surface, and the spherical radius is smaller than the concave arc radius of the concave-convex lens.
The beneficial technical effects of the utility model are as follows:
1. the fixture provided by the utility model can limit the concave-convex lens, and the lens is coaxially arranged when being positioned in the fixture main body, so that the thickness of the center of the lens is measured when the measuring head of the digital display indicator passes through the positioning hole or vertically abuts against the lens in the fixture main body according to the path of the original positioning hole, the accuracy of measured data is ensured, the measuring head and the center of the lens can be quickly aligned (positioned) through the positioning hole, and the digital display indicator measuring head or the lens does not need to be repeatedly moved and adjusted.
2. The measuring device provided by the utility model can reliably position the lens to be measured, ensures the accuracy of test data, can repeatedly and rapidly test a new lens after the positioning seat in the measuring device is fixed, namely, after the positioning seat is successfully used for the first time, the relative positions of the lens and the measuring head do not need to be repeatedly adjusted to find the vertex of the concave cambered surface during subsequent use, and the efficiency of testing lens products of the same model is effectively improved.
Drawings
FIG. 1 is a schematic side view of an embodiment in accordance with the utility model;
FIG. 2 is a schematic elevational cross-section of an embodiment according to the utility model;
FIG. 3 is a schematic illustration of centering of a clamp with a stylus according to an embodiment of the utility model;
FIG. 4 is a schematic illustration of zeroing the readings of an indicator in accordance with an embodiment of the utility model;
fig. 5 is a schematic diagram of lens measurement read data according to an embodiment of the utility model.
In the figure: the digital display meter comprises a 1-base, a 2-upright post, a 3-measuring platform, a 4-clamp body, a 5-first knob, a 6-second knob, a 7-digital display meter head, an 8-measuring rod, a 9-measuring head, a 10-positioning seat, an 11-fixing screw, a 12-clamp body, a 13-cushion block, a 14-concave-convex lens, a 15-positioning piece, a 16-positioning hole, a 17-limiting groove, a 18-indication meter rack, a 19-clamp and a 20-digital display indication meter.
Detailed Description
In order to make the technical solution of the present utility model more clear and obvious to those skilled in the art, the present utility model will be described in further detail with reference to examples and drawings, but the embodiments of the present utility model are not limited thereto.
Example 1:
as shown in fig. 1-2, the meniscus lens holder provided in this embodiment includes a holder body 12 having an inner cavity for accommodating a meniscus lens 14 (the two may be in clearance fit to ensure that the center positions of the meniscus lens 14 and the inner cavity correspond up and down when the meniscus lens 14 is located in the holder body 12, i.e. coaxially arranged), the inner cavity has an upper portion and a lower portion, wherein the upper portion and the lower portion are both in a columnar structure, the diameter of the upper portion is larger than that of the lower portion, so as to ensure that the meniscus lens with a downward convex surface can be accommodated, and the outer diameter of the meniscus lens is in a ring shape;
the top of the clamp main body 12 is sleeved with a positioning piece 15, the bottom surface of the positioning piece 15 is provided with a limiting groove 17 for accommodating the top of the clamp main body 12, the top of the clamp main body 12 is annular, the limiting groove 17 is columnar, the positioning piece 15 is convenient to be quickly mounted on the clamp main body 12, the top surface of the positioning piece 15 is penetrated with a positioning hole 16 for enabling a measuring head of a digital display indicator to vertically pass through, and the limiting groove 17 and the positioning hole 16 are mutually communicated;
when locating piece 15 cover is located anchor clamps main part 12 top, locating hole 16 and anchor clamps main part 12 coaxial setting (meaning if there is meniscus lens in the anchor clamps main part 12 this moment, then locating hole 16 and meniscus lens are coaxial setting too) so that can pass the digital display indicator gauge head of locating hole 16 also can vertically support in the center department of meniscus lens 14 that is located anchor clamps main part 12, ensure after fixing the position of anchor clamps below the digital display indicator gauge head through locating hole 16 (digital display indicator gauge head can support to the inner chamber of anchor clamps main part 12 through locating hole 16 can accomplish the putting of anchor clamps main part 12), the gauge head can be accurate fall in the center department of meniscus lens 14 that is located in the anchor clamps main part 12, ensure the accuracy of measured data.
In this embodiment, when the fixture clamps the meniscus lens 14, the meniscus lens 14 is located between the positioning piece 15 and the fixture main body 12, and the positioning hole 16 and the meniscus lens 14 are coaxially arranged, the axis (meniscus lens center) of the meniscus lens is consistent with the axis of the positioning hole 16 when the meniscus lens 14 is clamped (i.e. when the convex arc surface of the meniscus lens 14 faces downwards, the axis is perpendicular to the inner bottom surface of the fixture main body 12), so as to ensure that the digital display indicator gauge head passes through the positioning hole 16 and abuts against the meniscus lens 14 to abut against the center of the lens, and ensure the accuracy of measured data.
In this embodiment, as shown in fig. 1, an caulking groove is formed in the inner bottom side of the clamp body 12, a cushion block 13 is disposed in the caulking groove, the top surface of the cushion block 13 is higher than the top surface of the caulking groove, and the cushion block 13 is made of glass because the hardness of the glass material is relatively close to that of some meniscus materials (such as optical glass and quartz glass), so that abrasion to the surface of the meniscus during supporting of the meniscus can be effectively prevented.
In this embodiment, a softer material than the meniscus material (e.g., optical glass, quartz glass, etc.) may be used as the material of the pad 13.
Example 2:
as shown in fig. 1-5, the measuring device for the thickness of the center of the meniscus lens provided in this embodiment includes an indicator stand 18, where the indicator stand 18 includes a base 1, an upright post 2 disposed on the base 1, and a measuring platform 3 disposed on the top of the base 1, a clamp is disposed on the top of the measuring platform 3, a clamp 19 is disposed on the indicator stand 18, the clamp 19 includes a clamp body 4 sleeved on the outer peripheral side of the upright post 2, and a first knob 5 is screwed on one end (right end) of the clamp body 4 close to the upright post 2 through a screw hole;
the top surface of the clamp holder main body 4 is provided with a through hole from top to bottom, the clamp holder main body 4 is sleeved on the outer peripheral side of the upright post 2 through the through hole (namely, the hole shaft is matched), the clamp holder main body 4 can rotate around the upright post 2 and move up and down, the clamp holder main body 4 can be fixed on the upright post 2 by locking the first knob 5 (the first knob 5 is provided with a screw rod inserted in the clamp holder main body 4, and the screw rod passes through the clamp holder main body 4 and is pressed on the upright post 2 to finish the fixation of the clamp holder main body 4);
a digital display indicator 20 is arranged at one end (left end) of the clamp body 4 far away from the upright post 2, a second knob 6 is screwed on the front side of the left end of the clamp body 4 through a screw hole, a mounting hole is penetrated through the top surface of the left end of the clamp body 4, the digital display indicator 20 is positioned in the mounting hole, the digital display indicator 20 is fixed on the clamp body 4 through the second knob 6 (the second knob 6 is provided with a screw rod inserted into the clamp body 4, and the screw rod is pressed against the digital display indicator 20 through the clamp body 4 to finish the fixation of the digital display indicator 20);
a clamp is arranged between the indicating table rack 18 and the digital display indicating table 20, the digital display indicating table 20 comprises a digital display table head 7, a measuring rod 8 and a measuring head 9, the measuring head 9 is vertically abutted against (lapped on) the center of a concave-convex lens 14 in a clamp main body 12 (at the moment, the measuring rod 8 is coaxial with the concave-convex lens), the surface of the measuring head 9, which is used for contacting with the concave-convex lens 14, is a spherical surface, and the spherical radius is smaller than the concave arc radius of the concave-convex lens, so that the measuring head 9 can be abutted against the maximum thickness point of the concave-convex lens;
the top of the measuring platform 3 is provided with a positioning seat 10, the top surface of the positioning seat 10 is provided with a first cylindrical hole (a first through hole), the first cylindrical hole is used for accommodating the clamp main body 12, the outer diameter of the bottom of the clamp main body 12 is annular and can be matched with the first cylindrical hole (clearance fit), the bottom surface of the positioning seat 10 is provided with a second cylindrical hole, the second cylindrical hole is used for accommodating the measuring platform 3, the two cylindrical holes are mutually communicated, the diameter of the first cylindrical hole is smaller than that of the second cylindrical hole, and the clamp main body 12 in the first cylindrical hole is lapped on the top of the measuring platform 3;
the positioning seat 10 is sleeved on the outer peripheral side of the measuring platform 3, the positioning seat 10 is fixedly connected with the measuring platform 3 through the fixing screws 11, four screw holes are formed in the outer peripheral side face of the positioning seat 10 from outside to inside, the fixing screws 11 penetrate through the corresponding screw holes and are propped against the measuring platform 3 to fix the positioning seat 10, and meanwhile, the position of the clamp main body 12 is fixed (the clamp main body is not deviated on the horizontal plane).
In this embodiment, as shown in fig. 2, a space is left between the inner side wall of the positioning seat 10 and the outer side wall of the measuring platform 3, so that the position of the positioning seat 10 can be adjusted after the fixing screw 11 is loosened, and thus the position of the clamp main body 12 can be adjusted.
Installation and debugging as shown in fig. 3 and 4:
four fixing screws 11 on the positioning seat 10 are loosened, and the positioning seat 10 is sleeved on the measuring platform 3;
assembling the clamp main body 12 in the first cylindrical hole of the positioning seat 10, and sleeving the positioning piece 15 on the top of the clamp main body 12;
the first knob 5 is loosened, the position of the measuring head 9 is adjusted, the measuring head 9 passes through a positioning hole 16 (at the moment, the measuring rod 8 and the concave-convex lens are coaxial) in the positioning piece 15, at the moment, the fixing screw 11 on the positioning seat 10 is pre-tightened, the positioning seat 10 is attached to the top surface of the measuring platform 3, the fixing screw 11 is gradually screwed, the measuring rod 8 can move freely up and down, the clamp centering work is completed, the positioning piece 15 and the clamp main body 12 are taken down, and the reading of the digital display indicator is set to zero.
The test procedure is as shown in fig. 5:
a holding jig main body 12 in which the convex surface of the meniscus lens 14 is put downward into the jig main body 12;
lifting the measuring rod 8 and placing the clamp main body 12 into the first cylindrical hole of the positioning seat 10;
carefully and lightly placing the measuring rod 8 to enable the measuring head to contact the concave cambered surface of the lens, and reading test data;
the spindle 8 is lifted again, the jig main body 12 is taken out of the positioning seat 10, and then the lens is poured out of the jig main body 12.
In summary, the fixture provided in embodiment 1 can limit the meniscus lens, and the lens is coaxially disposed between the concave lens and the convex lens when being located in the fixture main body, so as to ensure that the thickness of the center of the lens is measured when the measuring head of the digital display indicator passes through the positioning hole or vertically abuts against the lens in the fixture main body according to the path of the original positioning hole, ensure the accuracy of measured data, and can quickly align (position) the measuring head and the center of the lens through the positioning hole without repeatedly moving and adjusting the measuring head or the lens of the digital display indicator;
the measuring device provided in embodiment 2 can reliably position the lens to be measured, ensures the accuracy of test data, can repeatedly and rapidly test a new lens after the positioning seat 10 in the measuring device is fixed, namely, after the positioning seat 10 is successfully used for the first time, the relative positions of the lens and the measuring head do not need to be repeatedly adjusted during subsequent use so as to find the vertex of the concave cambered surface, and effectively improves the efficiency of testing lens products of the same model.
The above description is merely a further embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto, and any person skilled in the art will be able to apply equivalents and modifications according to the technical solution and the concept of the present utility model within the scope of the present utility model disclosed in the present utility model.
Claims (10)
1. A meniscus lens holder, characterized in that: including having a anchor clamps main part (12) that is used for placing the inner chamber of meniscus lens (14), when meniscus lens (14) are located anchor clamps main part (12), above-mentioned two are clearance fit to make the coaxial setting of meniscus lens (14) and anchor clamps main part (12), be provided with setting element (15) on anchor clamps main part (12), the top surface of setting element (15) runs through has locating hole (16) that are used for making the vertical pass of digital display indicator gauge head, locating hole (16) and anchor clamps main part (12) coaxial setting to the center department of meniscus lens (14) that can pass locating hole (16) also can vertically support in anchor clamps main part (12).
2. The meniscus lens holder of claim 1, wherein: a cushion block (13) for supporting the concave-convex lens (14) is arranged in the clamp main body (12).
3. The meniscus lens holder of claim 2, wherein: the inner bottom side of the clamp main body (12) is provided with a caulking groove, the cushion block (13) is arranged in the caulking groove, and the top surface of the cushion block (13) is higher than the top surface of the caulking groove.
4. A meniscus lens holder according to claim 3, wherein: the cushion block (13) is a glass cushion block.
5. The meniscus lens holder of claim 1, wherein: the bottom surface of the positioning piece (15) is provided with a limiting groove (17) for accommodating the top of the clamp main body (12), and the limiting groove (17) and the positioning hole (16) are mutually communicated.
6. The utility model provides a measuring device of meniscus center thickness which characterized in that: including instruction table rack (18), be provided with holder (19) on instruction table rack (18), the one end of holder (19) is provided with digital display instruction table (20), be provided with anchor clamps between instruction table rack (18) and digital display instruction table (20), anchor clamps are arbitrary in claim 1~5 meniscus lens anchor clamps, digital display instruction table (20) are including digital display table head (7), measuring staff (8) and gauge head (9), gauge head (9) are used for supporting the center department of meniscus lens (14) in anchor clamps main part (12).
7. The meniscus center thickness measurement device of claim 6, wherein: the indicating table rack (18) comprises a base (1), upright posts (2) and a measuring platform (3) which are arranged on the base (1), a positioning seat (10) is arranged at the top of the measuring platform (3), a first through hole is formed in the top surface of the positioning seat (10), and a clamp is arranged in the first through hole of the positioning seat (10) so as to limit the clamp to deflect along the horizontal direction.
8. The meniscus center thickness measurement device of claim 7, wherein: the positioning seat (10) is sleeved on the outer peripheral side of the measuring platform (3), and the positioning seat (10) is fixedly connected with the measuring platform (3) through fixing screws (11).
9. The meniscus center thickness measurement device of claim 8, wherein: a space is reserved between the inner side wall of the positioning seat (10) and the outer side wall of the measuring platform (3).
10. The meniscus center thickness measurement device of claim 9, wherein: the surface of the measuring head (9) for contacting with the concave-convex lens (14) is a spherical surface, and the spherical radius is smaller than the concave arc radius of the concave-convex lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320381735.8U CN219301475U (en) | 2023-03-03 | 2023-03-03 | Concave-convex lens clamp and concave-convex lens center thickness measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320381735.8U CN219301475U (en) | 2023-03-03 | 2023-03-03 | Concave-convex lens clamp and concave-convex lens center thickness measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219301475U true CN219301475U (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320381735.8U Active CN219301475U (en) | 2023-03-03 | 2023-03-03 | Concave-convex lens clamp and concave-convex lens center thickness measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219301475U (en) |
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2023
- 2023-03-03 CN CN202320381735.8U patent/CN219301475U/en active Active
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