CN211698339U - Optical element adjusting frame - Google Patents
Optical element adjusting frame Download PDFInfo
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- CN211698339U CN211698339U CN202020278491.7U CN202020278491U CN211698339U CN 211698339 U CN211698339 U CN 211698339U CN 202020278491 U CN202020278491 U CN 202020278491U CN 211698339 U CN211698339 U CN 211698339U
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- jackscrew
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Abstract
The utility model relates to an optics technical field discloses an optical element adjustment frame to independently adjust, lock each dimension, and when avoiding optics to crosstalk, improve the convenience and the stability of operation. The utility model discloses the adjustment frame includes: the support frame is provided with a translation ring, a first driving mechanism for driving the translation ring to translate towards the X axis and a second driving mechanism for driving the translation ring to translate towards the Y axis; the translation ring is connected with the connecting ring through internal threads; the connecting ring is coupled with the optical element mounting ring, the front knob, the limiting ring, the locking ring, the translation ring and the rear knob, a first jackscrew is arranged between the limiting ring and the front knob, and a second jackscrew is arranged between the locking ring and the rear knob; when the second jackscrew is locked and the first jackscrew is loosened, the optical element mounting ring is driven to translate along the Z-axis direction by rotating the front knob; when the first jackscrew is locked and the second jackscrew is loosened, the optical element is driven to be installed and rotated around the Z axis by rotating the rear knob.
Description
Technical Field
The utility model relates to the field of optical technology, especially, relate to an optical element adjustment frame.
Background
The optical adjustment frame has wide application in the field of optical precision machinery, and related technologies include, but are not limited to, the prior arts disclosed in 201710000695.7, 201610333357.0, 201821640358.0, 201210300153.9, 200820206058.1, and the like. The optical element is installed in the adjusting frame to finely adjust the azimuth angle of the optical axis, the focusing of light spots and the like, so that the function of the optical system is realized.
The more the adjustable freedom of the adjusting frame is, the more the volume of the optical system is simplified, and the more convenient the adjustment is. A common multidimensional adjusting frame on the market can realize five-degree-of-freedom adjustment without optical crosstalk, but lacks the degree-of-freedom adjustment rotating around a Z axis, and cannot be compatible with a polaroid and a wave plate. Part of the six-axis optical adjusting frame can realize six-degree-of-freedom adjustment, but the Z-axis translation of the six-axis optical adjusting frame cannot be independently adjusted, the three adjusting devices at the rear end need to be adjusted at the same time to move for the same distance, and the three adjusting devices are difficult to move for the same distance along the Z axis; meanwhile, two regulators at the rear end are also required to be adjusted for adjusting the rotation of the XY axis, the translation of the Z axis is influenced, the crosstalk of an optical path is caused, and the system requirement can be met only by adjusting for many times.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to disclose an optical element alignment jig to independently adjust, lock each dimension, and when avoiding optical crosstalk, improve the convenience and the stability of operation.
To achieve the above object, the present invention discloses an optical element adjusting rack, comprising:
the support frame is provided with a translation ring, a first driving mechanism for driving the translation ring to translate along the X axis and a second driving mechanism for driving the translation ring to translate along the Y axis;
the translation ring is connected with the connecting ring through internal threads;
an optical element mounting ring, a front knob, a limiting ring and a clamping ring are arranged on the left side of the connecting ring, and a first jackscrew is arranged between the limiting ring and the front knob; the clamping ring is used for clamping an optical element in the optical element mounting ring, the front knob is connected with the front end of the optical element mounting ring through internal threads, the limiting ring is arranged in a cavity between the front knob and the rear end of the optical element mounting ring, a groove parallel to a Z axis is further formed in the middle rear end of the optical element mounting ring, one end of a limiting pin is accommodated in the groove, and the other end of the limiting pin extends into the limiting ring; the connecting ring is in threaded connection with the limiting ring, and a fit clearance is formed among the front knob, the limiting ring and the connecting ring;
a locking ring and a rear knob are arranged on the right side of the connecting ring; the translation ring is in threaded connection with the locking ring, the connecting ring is in threaded connection with the rear knob, a fit clearance exists between the rear knob and the locking ring, and a second jackscrew is arranged between the locking ring and the rear knob;
wherein the first jackscrew and the second jackscrew are further configured to:
when the second jackscrew is locked and the first jackscrew is loosened, the front knob is rotated to drive the optical element mounting ring to translate along the Z-axis direction; and
when the first jackscrew is locked and the second jackscrew is loosened, the optical element installation is driven to rotate around the Z axis by rotating the rear knob.
Preferably, the specific structure of the second driving mechanism is as follows:
be equipped with the hand screw rod of twisting of Y axle on the support frame, the hand screw rod of twisting of Y axle with support frame screw-thread fit is in order to promote Y axle stopper, the boss recess of Y axle stopper with translation ring cooperation and each one of longitudinal symmetry distribution, the Y axle stopper of lower part with be equipped with the pagoda spring that is used for providing reaction force between the support frame.
Preferably, the specific structure of the first driving mechanism is as follows:
be equipped with the hand screw rod of twisting of X axle on the support frame, the hand screw rod of twisting of X axle with support frame screw-thread fit is in order to promote the X axle stopper, the boss recess of X axle stopper with translation ring cooperation and each one of bilateral symmetry distribution, with the hand screw rod of twisting of X axle relative one side X axle stopper with be equipped with the pagoda spring that is used for providing reaction force between the support frame.
Preferably, the utility model discloses still include: the rotating frame is connected with the supporting frame through a compression spring; the rotating frame is connected with the supporting frame through a right pitching support, a left pitching support, cylindrical pins and fixing screws, and the cylindrical pins are distributed on the left side and the right side; and a hand-screwing screw rod in threaded fit is further arranged on the rotating frame to push the support frame to rotate around the axis of the cylindrical pin.
Preferably, the utility model discloses still include: a base; the rotating frame is connected with the base through a rotating pin so as to realize that the adjusting frame rotates around the Y axis. Specifically, the base is provided with two bosses designed by a seesaw, the rotating pin is arranged at the fulcrum of the seesaw, two corresponding grooves are formed in the rotating frame, the rotating frame is provided with a hand-screwed screw to push one boss on the base to rotate around the axis of the rotating pin, and the other boss is connected with a compression spring to provide a reaction force. Further, the utility model discloses still include: a limit screw for limiting the rotation angle around the Y axis; and the locking block and the locking screw are used for locking the rotation state of the adjusting frame around the Y axis. Similarly, similar limiting and fixing components can be introduced in the adjustment process of other dimensions.
The utility model discloses following beneficial effect has:
with go-between coupling optical element collar, preceding knob, spacing ring, locking ring, translation ring and back knob, compact structure is practical, through first jackscrew and second jackscrew cooperation between them, can realize that optical element is independent each other and mutual noninterference around the regulation of two dimensions of Z axle rotation and translation, also independent each other and mutual noninterference with XY axle translation simultaneously, when avoiding optical crosstalk, improves the convenience and the stability of operation.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a front view of an optical element adjusting frame according to an embodiment of the present invention.
Fig. 2 is a left side view of the optical element adjusting frame according to an embodiment of the present invention.
Fig. 3 is a right side view of the structure of the optical element adjusting bracket according to the embodiment of the present invention.
Fig. 4 is a structural elevation view of an optical element adjustment frame according to an embodiment of the present invention.
Fig. 5 is a sectional view a-a in fig. 1.
Fig. 6 is a sectional view taken along line B-B in fig. 1.
Fig. 7 is a cross-sectional view C-C of fig. 1.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
Example one
The embodiment discloses an optical element adjusting frame.
As shown in fig. 1 to 7, the adjusting bracket of the present embodiment includes: the device comprises a support frame 1, a rotating frame 2, a hand-screwed screw rod 3, a base 4, a compression spring 5, a right pitching support 6, a cylindrical pin 7, a locking screw 8, a fixing screw 9, a locking block 10, a locking screw 11, a left pitching support 12, a rear cover plate 13, an optical element mounting ring 14, a clamping ring 15, a sealing cover 16, a front knob 17, a limiting ring 18, a first jackscrew 19, a connecting ring 20, a limiting block 21, a translation ring 22, a second jackscrew 23, a rear knob 24, a locking ring 25, a pagoda spring 26, a rotating pin 27, a compression spring 28, a limiting screw 29 and a limiting pin 30.
The optical element of the present embodiment is mounted in an optical element mounting ring 14, which is held in compression by a snap ring 15, and the mounting ring has a positioning step whose surface coincides with the rotation center point O when the mounting ring is translated to the final position.
The adjustment frame realizes that XY axle translation functional mode is similar, see fig. 1 and fig. 5, and the upper end hand is twisted screw rod 3 and is for screw-thread fit with support frame 1, and the degree of depth that twists support frame 1 through the hand promotes stopper 21 to make translation ring 22, go-between 20, preceding knob 17, optical element collar 14 translate along the Y axle direction in proper order, pagoda spring 26 provides the reaction force of translation, guarantees that whole structure can follow Y axle direction repetitive motion. The limiting blocks 21 are 4 in total, are uniformly distributed on the circumference, and in the figure 5, the upper limiting block 21 and the lower limiting block 21 are matched with the support frame 1 and can only move along the Y-axis direction, and the other two limiting blocks 21 can only move along the X-axis direction. The translation ring 22 is matched with the boss grooves of the 4 limit blocks 21, so that the movement of the translation ring can be limited to be only along the XY-axis direction, and the translation ring 14 is driven to translate along the XY-axis direction through force transmission. The hand-screwed screw 3 for controlling the XY axis translation can be locked in the adjusting process in a screw locking mode.
The adjusting bracket realizes the function of Z-axis translation, as shown in FIG. 5, the translation ring 22 is tightly screwed with the locking ring 25, the translation ring 22 can only move along XY direction, so the locking ring 25 can not rotate and can only move along the translation ring 22, the locking ring 25 is provided with the second jackscrew 23 which can lock the translation ring 22 with the rear knob 24, the rear knob 24 is tightly screwed with the connecting ring 20, the connecting ring 20 is tightly screwed with the limit ring 18, so the second jackscrew 23 can be locked to connect the limit ring 18, the connecting ring 20 and the rear knob 24 with the translation ring 22 and the locking ring 25 into a whole, the front knob 17 is in proper clearance fit with the limit ring 18 and the connecting ring 20, the front knob 17 is in threaded fit with the optical element mounting ring 14, the optical element mounting ring 14 is in proper clearance fit with the limit ring 18 and the connecting ring 20, the longitudinal groove (i.e. the groove parallel to the Z axis) in the optical element mounting ring 14 is limited by the limit pin 30 (as shown in FIG. 6), thus, as the front knob 17 is rotated, the threaded engagement of the optical element mounting ring 14 cannot follow its rotation, but only translates in the Z-axis direction, as does the stop pin 30 in the longitudinal slot in the optical element mounting ring 14. The step of the cover 16 and the coupling ring 20 controls the translational travel of the optical element mounting ring 14 and the front knob 17 can be locked for Z-axis movement by the first jackscrew 19.
The adjusting frame realizes the function of rotating around the Z axis, see figure 5, the second jackscrew 23 is loosened, the first jackscrew 19 is locked, the rear knob 24 is in clearance fit with the locking ring 25, the connecting ring 20 is in proper clearance fit with the support frame 1, the translation ring 22 and the locking ring 25, therefore, the front knob 17 realizes the rotation around the Z axis of the whole structure through the connecting ring 20, the limiting ring 18, the limiting pin 30, the optical element mounting ring 14 and the first jackscrew 19 by rotating the rear knob 24, and the locking can be realized in the adjusting process through the second jackscrew 23 without translation.
The adjusting frame realizes the function of rotating around an X axis and is shown in the figures 1, 2 and 3, the rotating frame 2 is connected with the support frame 1 through a right pitching support 6, a left pitching support 12, a cylindrical pin 7 and a fixing screw 9, the left side and the right side of the cylindrical pin 7 are provided, the support frame 1 can rotate around the axis of the cylindrical pin 7, a hand-screwed screw rod 3 on the left side of the rotating frame 2 in the figure 1 pushes the support frame 1 to rotate around the axis of the cylindrical pin 7 to realize the rotation of the adjusting frame around the X axis, a compression spring 5 provides a reaction force, and a locking screw 8 and the right pitching support 6 can be locked together in the adjusting process and limit the angle of rotation around the X axis.
The adjusting frame realizes the functions of rotating around the Y axis as shown in figures 1, 5 and 7, and the rotating frame 2 is connected with the base 4 through a rotating pin 27 with threads. Referring to fig. 7, the base 4 is provided with two bosses and limiting screws 29, corresponding grooves are formed in the corresponding rotary frames 2, the rotary frames 2 can rotate around the axes of the rotating pins 27, the right hand-screwed screw 3 in fig. 7 pushes the bosses on the base 4 to rotate around the axes of the rotating pins 27, the compression springs 28 provide reaction force, the limiting screws 29 can limit the rotating angle around the Y axis, and the locking block 10 and the locking screws 11 can be locked together in the adjusting process.
Therefore, the embodiment of the utility model provides a following beneficial effect has:
1. the adjusting frame can enable the optical element to independently translate along XYZ axes, rotate around the XYZ axes and be locked, and the using and assembling mode can enable the optical element to particularly translate along the Z axis and rotate 360 degrees around the Z axis.
2. The rotation central axis is fixed, and the axis in the translation direction and the geometric axis of the optical element are always coincident, so that the crosstalk in the optical path adjustment is effectively avoided.
3. The thread fit of the hand-screwed screw in the adjusting frame is ultra-fine threads, so that the ejection stroke of the screw can be accurately controlled, and the aim of fine adjustment is fulfilled.
4. The mounting surface of the optical element can be adjusted to an XYZ axis center dot O by adjusting XYZ axis translation, the geometric center of the optical element is completely overlapped with the rotation center of the adjusting frame, and at the moment, when the single rotation freedom degree of the optical path is adjusted, the change in the directions of other freedom degrees is not caused, so that the complete non-crosstalk adjustment is realized.
To sum up, the embodiment of the utility model discloses six independent regulation, locking, adjustment frame that does not have optical crosstalk are disclosed. The adjusting frame has the advantages of compact structure, high functional integration and wide application range, and can realize three-dimensional translation and three-dimensional angle rotation adjustment of the mounted optical element.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An optical component adjustment mount, comprising:
the support frame is provided with a translation ring, a first driving mechanism for driving the translation ring to translate along the X axis and a second driving mechanism for driving the translation ring to translate along the Y axis;
the translation ring is connected with the connecting ring through internal threads;
an optical element mounting ring, a front knob, a limiting ring and a clamping ring are arranged on the left side of the connecting ring, and a first jackscrew is arranged between the limiting ring and the front knob; the clamping ring is used for clamping an optical element in the optical element mounting ring, the front knob is connected with the front end of the optical element mounting ring through internal threads, the limiting ring is arranged in a cavity between the front knob and the rear end of the optical element mounting ring, a groove parallel to a Z axis is further formed in the middle rear end of the optical element mounting ring, one end of a limiting pin is accommodated in the groove, and the other end of the limiting pin extends into the limiting ring; the connecting ring is in threaded connection with the limiting ring, and a fit clearance is formed among the front knob, the limiting ring and the connecting ring;
a locking ring and a rear knob are arranged on the right side of the connecting ring; the translation ring is in threaded connection with the locking ring, the connecting ring is in threaded connection with the rear knob, a fit clearance exists between the rear knob and the locking ring, and a second jackscrew is arranged between the locking ring and the rear knob;
wherein the first jackscrew and the second jackscrew are further configured to:
when the second jackscrew is locked and the first jackscrew is loosened, the front knob is rotated to drive the optical element mounting ring to translate along the Z-axis direction; and
when the first jackscrew is locked and the second jackscrew is loosened, the optical element installation is driven to rotate around the Z axis by rotating the rear knob.
2. The optical component adjustment stand of claim 1, wherein the second driving mechanism is configured to:
be equipped with the hand screw rod of twisting of Y axle on the support frame, the hand screw rod of twisting of Y axle with support frame screw-thread fit is in order to promote Y axle stopper, the boss recess of Y axle stopper with translation ring cooperation and each one of longitudinal symmetry distribution, the Y axle stopper of lower part with be equipped with the pagoda spring that is used for providing reaction force between the support frame.
3. The optical component adjustment stand of claim 1, wherein the first driving mechanism is configured to:
be equipped with the hand screw rod of twisting of X axle on the support frame, the hand screw rod of twisting of X axle with support frame screw-thread fit is in order to promote the X axle stopper, the boss recess of X axle stopper with translation ring cooperation and each one of bilateral symmetry distribution, with the hand screw rod of twisting of X axle relative one side X axle stopper with be equipped with the pagoda spring that is used for providing reaction force between the support frame.
4. An optical component adjustment stand according to any one of claims 1 to 3, further comprising:
the rotating frame is connected with the supporting frame through a compression spring;
the rotating frame is connected with the supporting frame through a right pitching support, a left pitching support, cylindrical pins and fixing screws, and the cylindrical pins are distributed on the left side and the right side; and a hand-screwing screw rod in threaded fit is further arranged on the rotating frame to push the support frame to rotate around the axis of the cylindrical pin.
5. The optical component adjustment mount of claim 4, further comprising:
a base;
the rotating frame is connected with the base through a rotating pin so as to realize that the adjusting frame rotates around the Y axis.
6. The optical component adjustment mount of claim 5, further comprising:
the base is provided with two bosses designed by a seesaw, the supporting points of the seesaw are the rotating pins, the rotating frame is provided with two corresponding grooves, the rotating frame is provided with a hand-screwed screw rod to push one boss on the base to rotate around the axis of the rotating pins, and the other boss is connected with a compression spring to provide a reaction force.
7. The optical component adjustment mount of claim 6, further comprising:
a limit screw for limiting the rotation angle around the Y axis; and
and the locking block and the locking screw are used for locking the rotation state of the adjusting frame around the Y axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020278491.7U CN211698339U (en) | 2020-03-09 | 2020-03-09 | Optical element adjusting frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020278491.7U CN211698339U (en) | 2020-03-09 | 2020-03-09 | Optical element adjusting frame |
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| Publication Number | Publication Date |
|---|---|
| CN211698339U true CN211698339U (en) | 2020-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020278491.7U Active CN211698339U (en) | 2020-03-09 | 2020-03-09 | Optical element adjusting frame |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112987217A (en) * | 2020-12-31 | 2021-06-18 | 武汉华工激光工程有限责任公司 | Multi-dimensional adjusting bracket of optical lens and optical assembly |
| CN114895424A (en) * | 2022-04-26 | 2022-08-12 | 核工业理化工程研究院 | Optical push-pull platform and push-pull locking method thereof |
-
2020
- 2020-03-09 CN CN202020278491.7U patent/CN211698339U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112987217A (en) * | 2020-12-31 | 2021-06-18 | 武汉华工激光工程有限责任公司 | Multi-dimensional adjusting bracket of optical lens and optical assembly |
| CN112987217B (en) * | 2020-12-31 | 2022-07-05 | 武汉华工激光工程有限责任公司 | Multi-dimensional adjusting bracket of optical lens and optical assembly |
| CN114895424A (en) * | 2022-04-26 | 2022-08-12 | 核工业理化工程研究院 | Optical push-pull platform and push-pull locking method thereof |
| CN114895424B (en) * | 2022-04-26 | 2024-01-05 | 核工业理化工程研究院 | Optical push-pull platform and push-pull locking method thereof |
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