CN212859203U - Optical lens clamping device - Google Patents
Optical lens clamping device Download PDFInfo
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- CN212859203U CN212859203U CN202021589058.1U CN202021589058U CN212859203U CN 212859203 U CN212859203 U CN 212859203U CN 202021589058 U CN202021589058 U CN 202021589058U CN 212859203 U CN212859203 U CN 212859203U
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- optical lens
- pressing plate
- mounting groove
- connecting portion
- clamping device
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Abstract
The utility model discloses an optical lens clamping device, include: a first fixing part, an optical lens, a first pressing plate and a second pressing plate, when the optical lens clamping device is used for installing the optical lens, first, the first connecting part of the optical lens is arranged in the first mounting groove, then the first pressing plate and the second pressing plate are used for limiting the two sides of the optical lens, because the peripheral surface of the first connecting part is in clearance fit with the groove wall of the first mounting groove, the distance between the opposite surfaces of the first pressing plate and the second pressing plate is larger than the edge thickness of the first connecting part, and the optical lens is not subjected to larger stress in the first mounting groove, thereby avoiding the mirror surface deformation of the optical lens, injecting glue into the gap between the groove wall of the first mounting groove and the optical lens through the first glue injection hole, the connecting structure adopts the modes of pre-positioning and glue injection fixing, avoids overlarge installation stress caused by direct mechanical fixing, and reduces the problem that the mirror surface of the optical lens is easy to deform in the installation process.
Description
Technical Field
The utility model relates to a lens installation technical field, concretely relates to optical lens clamping device.
Background
In order to meet the requirements of high precision and high performance of the optical axis position with the off-axis lens, the positioning precision of the lens installation process needs to be improved. However, off-axis lenses are prone to stress during installation and commissioning.
For example, the reflector is generally mounted on a mechanical part through a mounting device, the conventional mounting device does not have a function of eliminating mounting stress, and the surface shape of the reflector is easily influenced, so that the normal operation of the reflector is influenced. Therefore, a non-stress off-axis mirror clamping device is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned technique not enough, provide an optical lens clamping device, solve among the prior art optical lens and receive great stress in the installation easily, and then lead to the shape of face of optical lens easily to receive the technical problem who influences.
In order to achieve the above technical purpose, the technical solution of the present invention provides an optical lens holding device, including:
the first fixing part is provided with a first mounting groove penetrating through end faces on two sides of the first fixing part, and the first fixing part is also provided with a first glue injection hole communicated with the groove wall of the first mounting groove;
the optical lens comprises a first connecting part arranged along the optical axis of the optical lens, the first connecting part is arranged in the first mounting groove, and the outer peripheral surface of the first connecting part is in clearance fit with the groove wall of the first mounting groove;
the first pressure plate is connected to the edge of one end of the first mounting groove;
the second pressing plate is connected to the edge of the other end of the first mounting groove, and the first pressing plate or/and the second pressing plate are/is detachably and fixedly connected with the first fixing part;
the edge of the first connecting portion is clamped between the first pressing plate and the second pressing plate, and the distance between the opposite surfaces of the first pressing plate and the second pressing plate is larger than the thickness of the edge of the first connecting portion.
Compared with the prior art, the beneficial effects of the utility model include: when the optical lens clamping device is used for installing an optical lens, a first connecting part of the optical lens is arranged in a first mounting groove, then a first pressing plate and a second pressing plate are used for limiting the two sides of the optical lens, the outer peripheral surface of the first connecting part is in clearance fit with the groove wall of the first mounting groove, the distance between the opposite surfaces of the first pressing plate and the second pressing plate is larger than the edge thickness of the first connecting part, the optical lens does not bear large stress in the first mounting groove at the moment, so that the mirror surface deformation of the optical lens is avoided, glue is injected into a gap between the groove wall of the first mounting groove and the optical lens through a first glue injection hole, so that the connection between the optical lens and the first mounting groove is reinforced, and the connecting structure adopts the modes of pre-positioning and post-glue injection fixing, so that direct mechanical fixing (such as direct screw fixing) is avoided, Direct clamping) causes excessive installation stress, thereby reducing the problem that the mirror surface of the optical mirror is easy to deform in the installation process.
Drawings
Fig. 1 is a schematic perspective view of an embodiment of an optical lens holding apparatus provided in the present invention;
fig. 2 is a schematic cross-sectional view of an embodiment of an optical lens holding apparatus provided in the present invention;
FIG. 3 is an enlarged partial schematic view of FIG. 2 at A;
fig. 4 is a schematic perspective view of an embodiment of an adjusting screw according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 4, the present embodiment provides an optical lens clamping device, including: the optical lens comprises a first fixing part 1, an optical lens 2, a first pressing plate 3 and a second pressing plate 4.
The first fixing part 1 is provided with a first mounting groove 1a penetrating through end faces of two sides of the first fixing part, and the first fixing part is further provided with a first glue injection hole 1b communicated with a groove wall of the first mounting groove 1 a.
The optical lens 2 comprises a first connecting part 21 arranged along an optical axis of the optical lens, the first connecting part 21 is arranged in the first mounting groove 1a, and the outer peripheral surface of the first connecting part 21 is in clearance fit with the groove wall of the first mounting groove 1 a.
The first pressing plate 3 is connected to an edge of one end of the first mounting groove 1 a.
The second pressing plate 4 is connected to the edge of the other end of the first mounting groove 1a, and the first pressing plate 3 or/and the second pressing plate 4 are detachably and fixedly connected with the first fixing part 1.
The edge of the first connecting portion 1 is clamped between the first pressing plate 3 and the second pressing plate 4, and the distance between the opposite surfaces of the first pressing plate 3 and the second pressing plate 4 is greater than the edge thickness of the first connecting portion 21.
When the optical lens clamping device is used for installing an optical lens 2, a first connecting part 1 of the optical lens 2 is arranged in a first installation groove 1a, then a first pressing plate 3 and a second pressing plate 4 are used for limiting the two sides of the optical lens 2, the peripheral surface of the first connecting part 1 is in clearance fit with the groove wall of the first installation groove 1a, the distance between the opposite surfaces of the first pressing plate 3 and the second pressing plate 4 is larger than the edge thickness of the first connecting part 21, the optical lens 2 is not subjected to large stress in the first installation groove 1a at the moment, so that the mirror surface deformation of the optical lens 2 is avoided, and then the connection between the groove wall of the first installation groove 1a and the optical lens 2 is reinforced through a glue injection gap between the first glue injection hole 1b and the first installation groove 1a, The mode of back injecting glue is fixed, and it is too big to have avoided direct mechanical fastening (for example direct screw fixation, direct clamp fixation) to cause the installation stress to the problem of optical lens mirror surface easy deformation in the installation has been reduced.
In this embodiment, the first mounting groove 1a is a circular groove, the first glue injection holes 1b are a plurality of, and the first glue injection holes 1b are uniformly arranged along the circumferential direction of the first mounting groove 1a, so that the uniformity of glue injection at a plurality of positions is improved.
Further, the first pressing plate 3 is annular, and the first pressing plate 3 is coaxial with the first mounting groove 1a, in this embodiment, the first pressing plate 3 and the first fixing portion 1 are integrally formed.
The second pressing plate 4 is also annular, and the second pressing plate 4 is coaxial with the first mounting groove 1 a.
Specifically, first fixed part 1 is relative the one side of second clamp plate 4 is provided with three first screw hole, be provided with three first through-hole on the second clamp plate 4, it is three first through-hole one-to-one and three first screw hole coaxial arrangement, optical lens clamping device still include three first screw a1, the spiral shell tail of first screw a1 passes behind the first through-hole with first screw hole threaded connection, first clamp plate 3, second clamp plate 4, first fixed part 1 are all coaxial.
The optical lens 2 further includes a second connecting portion 22, the second connecting portion 22 is coaxial with the first connecting portion 21, an outer diameter of the second connecting portion 22 is smaller than an outer diameter of the first connecting portion 21, the second pressing plate 4 is sleeved on one end of the second connecting portion 22 close to the first connecting portion 21, specifically, an inner circumferential surface of the second pressing plate 4 is not in contact with an outer circumferential surface of the first connecting portion 21, so that contact stress is prevented from being generated.
In this embodiment, an annular stepped surface is formed between the first connecting portion 21 and the second connecting portion 22, three second threaded holes are provided on the second pressing plate 4, the optical lens clamping device further includes three second screws a2, three second screws a2 are in threaded connection with the three second threaded holes one by one, and the end of the second screw a2 is in stress-free contact with the annular stepped surface, it should be noted that in this embodiment, the distance between the opposite surfaces of the first pressing plate 3 and the second pressing plate 4 is slightly larger than the edge thickness of the first connecting portion 21, at this time, the edge of the optical lens 2 is clamped by not the second pressing plate 4 but the second screw a2 connected to the second pressing plate 4, and the contact gap between the second screw a2 and the optical lens 2 is adjustable, so that the screw tail of the second screw a2 can just contact with the optical lens 2, avoid generating large contact stress.
The optical lens clamping device comprises a first fixing part 1, a second fixing part 5 and a connecting structure, wherein the first fixing part 1 is provided with a first convex arc surface 1c which is coaxially arranged with the first fixing part 1, the area of an area formed by surrounding a moving section of the first convex arc surface 1c along the optical axis direction of the optical lens 2 is increased first and then is reduced, the section is vertical to the optical axis of the optical lens 2, the second fixing part 5 is provided with a second mounting groove 5a which penetrates through the end surfaces of the two sides of the second fixing part 5, the second mounting groove 5a is a circular groove, the radius of the second mounting groove 5a is equal to the spherical radius of the first convex arc surface 1c, the connecting structure realizes that the first fixing part 1 can rotate in the directions of three degrees of freedom relative to the second fixing part 5, and realizes the final adjustment of the optical axis angle of the optical lens 2, for the reader's understanding, what is needed here is the description: the final adjustment of the optical axis angle of the optical lens 2 belongs to fine adjustment, and the adjustment range is not large.
Further, the optical lens clamping device further comprises a first locking mechanism 6 for limiting the first fixing part 1 to move relative to the second fixing part 5, and the first locking mechanism 6 is used for realizing the final locking after the optical axis angle of the optical lens 2 is adjusted.
The outer peripheral surface of the first fixing part 1 is provided with a fixing ring 1d which is coaxially arranged with the first fixing part, the fixing ring 1d is provided with three third threaded holes which are uniformly arranged along the circumferential direction of the fixing ring, an annular adjusting gap b is clamped between the opposite surfaces of the fixing ring 1d and the second fixing part 5, the number of the first locking mechanisms 6 is three, the three first locking mechanisms 6 are correspondingly connected with the three third threaded holes one by one, one surface of the second fixing part 5, which is opposite to the fixing ring 1d, is provided with three fourth threaded holes which are uniformly arranged along the circumferential direction of the second fixing part 5, the three fourth threaded holes are arranged opposite to the three third threaded holes in a one-to-one correspondence, and the three fourth threaded holes are connected with the three first locking mechanisms 6 in a one-to-one correspondence.
Specifically, in the present embodiment, the first locking mechanism 6 includes an adjusting screw 61 and a fastening screw 62.
The adjusting screw 61, the peripheral surface of the adjusting screw 61 is provided with a first external thread, the first external thread is in threaded connection with the third threaded hole, the adjusting screw 61 is provided with a first through groove penetrating through two ends of the adjusting screw, and the peripheral surface of the first screw is provided with a second glue injection hole 61a communicated with the first through groove;
a fastening screw 62, wherein a screw tail of the fastening screw 62 passes through the first through groove and then is in threaded connection with the fourth threaded hole, and a first cylindrical adjusting gap c is arranged between the outer circumferential surface of the fastening screw 62 and the first through groove;
the optical lens 2 is connected with the first fixing portion 1, the angle adjustment of the optical axis of the optical lens 2 is realized by adjusting the three first locking mechanisms 6, specifically, during adjustment, the axis of the adjusting screw 61 can incline relative to the axis of the fastening screw 62 due to the first cylindrical adjusting gap c arranged between the fastening screw 62 and the first through groove, so that the adjustment of the optical axis angle of the optical lens 2 is realized, and then glue is injected into the first through groove through the second glue injection hole 61a, so that the final fixing of the adjusting screw 61 and the fastening screw 62 is realized.
Further, two ends of the adjusting screw 61 are provided with a concave arc surface, the concave arc surface is a part of a spherical surface, the first locking mechanism 6 further comprises two adjusting washers 63, the two adjusting washers 63 are respectively sleeved on the two adjusting washers 63, a second cylindrical adjusting gap d is arranged between the inner circumferential surface of each adjusting washer 62 and the outer circumferential surface of the fastening screw 62, the two adjusting washers 63 are respectively arranged at two ends of the adjusting screw 61, one end of each adjusting screw 61, opposite to the concave arc surface, is provided with a second convex arc surface, the second convex arc surface is a part of the spherical surface, the spherical diameter of the second convex arc surface is equal to that of the concave arc surface, the two second convex arc surfaces are in sliding contact with the two concave arc surfaces in a one-to-one correspondence manner, and the concave arc surfaces and the second convex arc surfaces are connected to enable the first fixing part 1 and the second fixing part 2 to be locked spherical hinges at three positions The connecting structure facilitates the adjustment of the angle of the optical axis of the optical lens 2.
Specifically, in this embodiment, the second glue injection holes 61a are plural, the plural second glue injection holes 61a are uniformly arranged around the circumference of the adjusting screw 61, the first locking mechanism 6 further includes a tightening nut 64, the tightening nut 64 is in threaded connection with the first external thread, and one side of the tightening nut 64 abuts against the end surface of the fixing ring 1 d.
The working principle is as follows: when the optical lens clamping device is used for installing an optical lens 2, a first connecting part 1 of the optical lens 2 is arranged in a first installation groove 1a, then a first pressing plate 3 and a second pressing plate 4 are used for limiting the two sides of the optical lens 2, the peripheral surface of the first connecting part 1 is in clearance fit with the groove wall of the first installation groove 1a, the distance between the opposite surfaces of the first pressing plate 3 and the second pressing plate 4 is larger than the edge thickness of the first connecting part 21, the optical lens 2 is not subjected to large stress in the first installation groove 1a at the moment, so that the mirror surface deformation of the optical lens 2 is avoided, and then the connection between the groove wall of the first installation groove 1a and the optical lens 2 is reinforced through a glue injection gap between the first glue injection hole 1b and the first installation groove 1a, The optical lens 2 is connected with the first fixing portion 1, the angle of the optical axis of the optical lens 2 is adjusted by adjusting the three first locking mechanisms 6, specifically, when the adjustment is performed, because a first cylindrical adjustment gap c is arranged between the fastening screw 62 and the first through groove, the axis of the adjusting screw 61 can incline relative to the axis of the fastening screw 62, so that the adjustment of the optical axis angle of the optical lens 2 is performed, then glue is injected into the first through groove through the second glue injection hole 61a, the final fixing of the adjusting screw 61 and the fastening screw 62 is performed, and the connection of the concave cambered surface and the second convex cambered surface enables the first fixing portion 1 and the second fixing portion 2 to be in a lockable ball hinge structure in three positions, the adjustment of the angle of the optical axis of the optical mirror 2 is facilitated.
The above description of the present invention does not limit the scope of the present invention. Any other corresponding changes and modifications made according to the technical idea of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. An optical lens holding apparatus, comprising:
the first fixing part is provided with a first mounting groove penetrating through end faces on two sides of the first fixing part, and the first fixing part is also provided with a first glue injection hole communicated with the groove wall of the first mounting groove;
the optical lens comprises a first connecting part arranged along the optical axis of the optical lens, the first connecting part is arranged in the first mounting groove, and the outer peripheral surface of the first connecting part is in clearance fit with the groove wall of the first mounting groove;
the first pressure plate is connected to the edge of one end of the first mounting groove;
the second pressing plate is connected to the edge of the other end of the first mounting groove, and the first pressing plate or/and the second pressing plate are/is detachably and fixedly connected with the first fixing part;
the edge of the first connecting portion is clamped between the first pressing plate and the second pressing plate, and the distance between the opposite surfaces of the first pressing plate and the second pressing plate is larger than the thickness of the edge of the first connecting portion.
2. The optical lens holding apparatus according to claim 1, wherein the first mounting groove is a circular groove, the first glue injection holes are plural, and the plural first glue injection holes are uniformly arranged along a circumferential direction of the first mounting groove.
3. The optic clamping device of claim 2, wherein the first pressure plate is annular and is coaxial with the first mounting groove.
4. The optic clamping device of claim 2 wherein said second pressure plate is also annular, said second pressure plate being coaxial with said first mounting groove.
5. The optical lens clamping device as claimed in claim 4, wherein the first fixing portion has three first threaded holes on a surface thereof opposite to the second pressing plate, the second pressing plate has three first through holes, the three first through holes are coaxially arranged with the three first threaded holes in a one-to-one correspondence, and the optical lens clamping device further comprises three first screws, and the tails of the first screws are threaded into the first threaded holes after passing through the first through holes.
6. The apparatus according to claim 1, wherein the optical lens further comprises a second connecting portion, the second connecting portion is coaxial with the first connecting portion, and the outer diameter of the second connecting portion is smaller than that of the first connecting portion, and the second pressing plate is sleeved on one end of the second connecting portion close to the first connecting portion.
7. The optical lens clamping device as claimed in claim 6, wherein an annular step surface is formed between the first connecting portion and the second connecting portion, the second pressing plate is provided with three second threaded holes, the optical lens clamping device further comprises three second screws, the three second screws are in one-to-one correspondence with the three second threaded holes and are in threaded connection, and the ends of the second screws are in stress-free contact with the annular step surface.
8. The holding device for optical lenses according to claim 6, wherein the first fixing portion has a first convex surface coaxially disposed on an outer peripheral surface thereof, the first convex surface is a portion of a spherical surface, and a cross section of the first convex surface along a movement of the optical axis of the optical lens is increased and then decreased in an area of a region surrounded by the first convex surface, wherein the cross section is perpendicular to the optical axis of the optical lens, the holding device further comprises a second fixing portion having a second mounting groove penetrating end surfaces of both sides thereof, the second mounting groove is a circular groove, and a radius of the second mounting groove is equal to a spherical radius of the first convex surface.
9. The optic holding device of claim 8, further comprising a first locking mechanism that restricts movement of the first fixed portion relative to the second fixed portion.
10. The optic holder of claim 1, wherein the first pressure plate is integrally formed with the first fixing portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021589058.1U CN212859203U (en) | 2020-07-31 | 2020-07-31 | Optical lens clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021589058.1U CN212859203U (en) | 2020-07-31 | 2020-07-31 | Optical lens clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212859203U true CN212859203U (en) | 2021-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021589058.1U Active CN212859203U (en) | 2020-07-31 | 2020-07-31 | Optical lens clamping device |
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| CN (1) | CN212859203U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115889123A (en) * | 2022-11-03 | 2023-04-04 | 睿励科学仪器（上海）有限公司 | Method for dispensing and curing by using lens dispensing device |
-
2020
- 2020-07-31 CN CN202021589058.1U patent/CN212859203U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115889123A (en) * | 2022-11-03 | 2023-04-04 | 睿励科学仪器（上海）有限公司 | Method for dispensing and curing by using lens dispensing device |
| CN115889123B (en) * | 2022-11-03 | 2023-11-10 | 睿励科学仪器（上海）有限公司 | Method for dispensing and solidifying by using lens dispensing device |
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