CN110161645B - Resettable pressure plate and extension rod mechanism - Google Patents
Resettable pressure plate and extension rod mechanism Download PDFInfo
- Publication number
- CN110161645B CN110161645B CN201910423305.6A CN201910423305A CN110161645B CN 110161645 B CN110161645 B CN 110161645B CN 201910423305 A CN201910423305 A CN 201910423305A CN 110161645 B CN110161645 B CN 110161645B
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- hole
- connecting rod
- middle ring
- pressing plate
- opposite
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
Abstract
A resettable pressing plate and connecting rod mechanism comprises a pressing plate, a connecting rod, an intermediate ring, a pressure spring, a compression screw, a jacking screw, a locking screw and the like. The optical element is arranged at the top end of the connecting rod. When the optical element needs to be replaced after the optical path is adjusted, the pressing plate is kept still, and the connecting rod and the optical element are replaced.
Description
Technical Field
The invention relates to a device for optical experiments, in particular to a resettable pressing plate and a connecting rod mechanism for placing an optical element, wherein different optical elements are required to be replaced or removed and reset in optical path adjustment, and the resettable pressing plate and the connecting rod mechanism ensure that the optical elements do not need to be repeatedly adjusted or the adjustment range is reduced in the replacement and resetting processes, so that the optical path adjustment and experiments are facilitated.
Background
In the optical path adjustment, when the optical element is required to be replaced according to the experimental requirements, because the resetting precision is not ensured, the position, the angle and the like are required to be readjusted when the optical element is replaced every time, even if the optical element is adjusted, the readjustment is not required when the optical element is reset after being removed, and the optical path adjustment is time-consuming and labor-consuming;
disclosure of Invention
The invention aims to provide a resettable pressure plate and a connecting rod mechanism, wherein an optical element is placed on a connecting rod, and when the adjusted optical element needs to be removed, the connecting rod and the optical element are removed together; because the pressure plate is not moved, when the optical element is reset, the angle and the position of the adjusted optical element before being removed can be ensured not to be changed.
The technical solution of the invention is as follows:
a resettable pressing plate and connecting rod mechanism is characterized by comprising a pressing plate, a connecting rod, a middle ring, two steel balls, two pressure springs, two compression screws, a jacking screw and a locking screw;
the right end of the pressure plate is provided with a lower hole and a coaxial upper hole, the upper hole is provided with three flanges which are uniformly distributed in the circumferential direction, the diameter of a circle formed by the most radial protruding points of the three flanges is not smaller than that of the lower hole, the upper edge of the lower hole is provided with a circumferential cutting groove which exceeds half of the circumference, the upper hole is provided with an axial cutting groove which cuts through the circumferential cutting groove, so that the front elastic part of the pressure plate can elastically move relative to the fixed part behind the pressure plate; the outer wall of the lower hole is provided with a through hole; the outer wall of the front elastic part is provided with a scribed line which is opposite to the through hole; the upper side of the front elastic part is provided with a threaded hole, and the fixed part opposite to the threaded hole is provided with a locking through hole; elastically moving said elastic portion with respect to said fixed portion by said locking screw; the bottom of the fixed part of the pressure plate is provided with two reset holes which are diametrically opposite, and the reset holes consist of three parts: the steel ball is placed in the unthreaded hole and is elastically compressed by the pressure spring through the meshing of the compression screw and the compression threaded hole of the pressure plate; the right end of the pressing plate is provided with a waist slot hole, and the bottom of the pressing plate is provided with a boss;
the connecting rod comprises a lower shaft and an upper shaft, and the top surface of the connecting rod is provided with two positioning pin holes and a plurality of mounting threaded holes;
the middle ring is provided with an axial hole, the outer cylindrical surface of the middle ring is provided with two small surfaces which are opposite to each other in the radial direction, and the two small surfaces are respectively provided with a positioning hole; a jacking threaded hole and a scribed line opposite to the jacking threaded hole are formed in the outer cylindrical surface of the middle ring;
the axial hole of the middle ring is matched with the lower shaft of the connecting rod, and the connecting rod and the middle ring are tightly combined together through the jacking screw; the middle ring is arranged in the lower hole of the pressing plate, a steel ball positioned in the unthreaded hole of the pressing plate protrudes out of the stop flange part and is opposite to the positioning hole of the middle ring, and the jacking threaded hole of the middle ring is opposite to the through hole of the pressing plate; the lower end of the upper shaft of the connecting rod is in fit contact with the flange on the upper hole of the pressure plate.
The invention has the technical effects that:
the resettable pressing plate and connecting rod mechanism has the characteristics of simple structure and accurate and reliable resetting, and can replace different optical elements or remove and reset the optical elements only once, thereby greatly facilitating the adjustment of a light path.
Drawings
FIG. 1 is a perspective view of a repositionable pressure plate and extension bar mechanism of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a sectional view taken along line B-B of FIG. 1;
FIG. 4 is a perspective view of the platen of the present invention;
FIG. 5 is a cross-sectional view taken along line C-C of FIG. 4;
FIG. 6 is an enlarged partial view of a reset hole of the pressure plate of the present invention;
FIG. 7 is a perspective view of the intermediate ring of the present invention;
FIG. 8 is a perspective view of a connecting rod of the present invention;
FIG. 9 is a perspective view of a repositionable pressure plate and a linkage mechanism of the present invention mounting an optical element;
Detailed Description
The invention is further described with reference to the following drawings and specific examples, but not to be construed as being limited thereto;
as shown in fig. 1, 2 and 3, the resettable pressing plate and connecting rod mechanism of the invention comprises a pressing plate 1, a connecting rod 2, an intermediate ring 3, two steel balls 4, two compression springs 5, two compression screws 6, a jacking screw 7 and a locking screw 8;
as shown in fig. 4, the right end of the pressure plate 1 is provided with a lower hole 117 and a coaxial upper hole 114, the upper hole 114 is provided with three flanges 12 which are uniformly distributed in the circumferential direction, the diameter of a circle formed by the most protruding points in the radial direction of the three flanges 12 is not smaller than that of the lower hole 117, the upper edge of the lower hole 117 is provided with a circumferential super-semi-circumferential cut groove 13, the upper hole 114 is provided with an axial cut groove 14, and the axial cut groove 14 cuts through the circumferential cut groove 13 to enable a front elastic part 116 of the pressure plate 1 to elastically move relative to a fixed part 115 at the back of the pressure plate 1; the outer wall of the lower hole 117 is provided with a through hole 15; the outer wall of the front elastic part 116 is provided with a scribed line 113 which is opposite to the through hole 15; the upper side of the front elastic part 116 is provided with a threaded hole 16, and the fixing part 115 opposite to the threaded hole 16 is provided with a locking through hole 17; the elastic part 116 is elastically moved relative to the fixed part 115 by the locking screw 8; the left side of the pressing plate 1 is provided with a waist slot hole 11;
as shown in fig. 4 and 5, the bottom of the fixed portion 115 of the pressure plate 1 has two reset holes 119 facing radially, and as shown in fig. 6, the reset holes 119 are composed of three parts: the stop flange 111, the unthreaded hole 19 and the pressing threaded hole 18 are arranged from inside to outside in sequence along the radial direction;
as shown in fig. 2, the steel ball 4 is placed in the unthreaded hole 11 and is elastically pressed by the compression spring 5 through the engagement of the compression screw 5 and the compression threaded hole 18 of the pressure plate 1; the steel ball 4 positioned in the unthreaded hole 19 of the pressure plate 1 partially protrudes out of the stop flange 111 and directly faces the positioning hole 34 of the intermediate ring 3;
as shown in fig. 3, the jacking threaded hole 31 of the intermediate ring 3 is opposite to the through hole 15 of the pressure plate 1; the upper shaft 24 of the extension rod 2 is in fit contact with the flange 12 on the upper hole 114 of the pressure plate 1;
as shown in fig. 7, the intermediate ring 3 has an axial hole 35, the outer cylindrical surface 36 has two radially opposite facets 33, and each of the two facets 33 has a positioning hole 34; the outer cylindrical surface 36 of the middle ring 3 is provided with a tightly-jacking threaded hole 31 and a scribed line 32 which is opposite to the tightly-jacking threaded hole 31;
as shown in fig. 3, the axial hole 35 of the middle ring 3 is engaged with the lower shaft 21 of the extension rod 2, and the extension rod 2 is tightly connected with the middle ring 3 by the tightening screw 7; the middle ring 3 is placed in the lower hole 117 of the pressure plate 1;
as shown in fig. 8, the extension bar 2 includes a lower shaft 21 and an upper shaft 24, and the top surface of the extension bar 2 has two dowel holes 23 and a plurality of mounting screw holes 22.
As shown in fig. 9, the optical element 12 is fixed on the top end of the extension bar 2 through the adjusting bracket 9, the tightening screw 7 connects the extension bar 2 and the middle ring 3, the locking screw 8 clasps the extension bar 2 on the pressing plate 1, and the pressing plate 1 is fixed on the optical platform and other devices through the slotted hole 11.
In the optical path, when the optical element needs to be removed or replaced after being adjusted, the locking screw 8 is loosened, the connecting rod 2 is removed, the connecting middle ring 3, the adjusting frame 9 and the optical element 12 are removed together, and the pressing plate 1 is kept still; when the reduction or replacement is needed, the extension rod 2 is put into the lower hole 117 and the upper hole 114 of the pressure plate 1 together with other devices, and the reduction and replacement are completed by tightening the locking screw 8.
Experiments show that the resettable pressing plate and connecting rod mechanism has the characteristics of simple structure and accurate and reliable resetting, and the optical path adjustment is greatly facilitated by only adjusting once for replacing different optical elements or removing and resetting the optical elements.
Claims (1)
1. A resettable pressing plate and connecting rod mechanism is characterized by comprising a pressing plate (1), a connecting rod (2), a middle ring (3), two steel balls (4), two pressure springs (5), two compression screws (6), a jacking screw (7) and a locking screw (8);
the right end of the pressure plate (1) is provided with a lower hole (117) and a coaxial upper hole (114), the upper hole (114) is provided with three flanges (12) which are uniformly distributed in the circumferential direction, the diameter of a circle formed by the radially most protruding points of the three flanges (12) is not smaller than that of the lower hole (117), the upper edge of the lower hole (117) is provided with a circumferential cutting groove (13) which exceeds half of the circumference, the upper hole (114) is provided with an axial cutting groove (14), and the axial cutting groove (14) is cut through the circumferential cutting groove (13), so that a front elastic part (116) of the pressure plate (1) can elastically move relative to a fixed part (115) behind the pressure plate (1); the outer wall of the lower hole (117) is provided with a through hole (15); the outer wall of the front elastic part (116) is provided with a scribed line (113) which is opposite to the through hole (15); the upper side of the front elastic part (116) is provided with a threaded hole (16), and a fixed part (115) opposite to the threaded hole (16) is provided with a locking through hole (17); -elastically moving said elastic portion (116) with respect to said fixed portion (115) by means of said locking screw (8); the bottom of the fixed part (115) of the pressure plate (1) is provided with two reset holes (119) which are opposite to each other in the radial direction, and the reset holes (119) are composed of three parts: the steel ball bearing is characterized in that a stop flange (111), a unthreaded hole (19) and a pressing threaded hole (18) are sequentially arranged from inside to outside along the radial direction, the steel ball (4) is placed in the unthreaded hole (19), and the steel ball is elastically pressed by the pressing spring (5) through the engagement of the pressing screw (5) and the pressing threaded hole (18) of the pressing plate (1); the right end of the pressing plate (1) is provided with a waist slot hole (11), and the bottom of the pressing plate (1) is provided with a boss (112);
the connecting rod (2) comprises a lower shaft (21) and an upper shaft (24), and the top surface of the connecting rod (2) is provided with two positioning pin holes (23) and a plurality of mounting threaded holes (22);
the middle ring (3) is provided with an axial hole (35), the outer cylindrical surface (36) of the middle ring (3) is provided with two small surfaces (33) which are opposite in the radial direction, and the two small surfaces (33) are respectively provided with a positioning hole (34); a tightly-jacking threaded hole (31) and a scribed line (32) which is opposite to the tightly-jacking threaded hole (31) are formed in the outer cylindrical surface (36) of the middle ring (3);
the axial hole (35) of the middle ring (3) is matched with the lower shaft (21) of the connecting rod (2), and the connecting rod (2) and the middle ring (3) are tightly combined together through the tightening screw (7); the middle ring (3) is arranged in a lower hole (117) of the pressing plate (1), a steel ball (4) positioned in a unthreaded hole (19) of the pressing plate (1) protrudes out of the part of the stop flange (111) and is just opposite to a positioning hole (34) of the middle ring (3), and a jacking threaded hole (31) of the middle ring (3) is just opposite to a through hole (15) of the pressing plate (1); the lower end of the upper shaft (24) of the connecting rod (2) is in fit contact with a flange (12) on an upper hole (114) of the pressure plate (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910423305.6A CN110161645B (en) | 2019-05-21 | 2019-05-21 | Resettable pressure plate and extension rod mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910423305.6A CN110161645B (en) | 2019-05-21 | 2019-05-21 | Resettable pressure plate and extension rod mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110161645A CN110161645A (en) | 2019-08-23 |
| CN110161645B true CN110161645B (en) | 2020-08-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910423305.6A Active CN110161645B (en) | 2019-05-21 | 2019-05-21 | Resettable pressure plate and extension rod mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN110161645B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09243965A (en) * | 1996-03-07 | 1997-09-19 | Sony Corp | Attaching structure for camera shake correction device |
| US20120267495A1 (en) * | 2011-03-21 | 2012-10-25 | Excelitas Technologies LED Solutions, Inc. | System and method for holding an optical rod |
| CN104570259B (en) * | 2015-01-20 | 2017-01-04 | 中国科学院上海光学精密机械研究所 | The fixing pressing plate of optical component |
| CN206550907U (en) * | 2017-02-23 | 2017-10-13 | 广西申亿汽车零部件有限公司 | A kind of concealed pressure plate clamping mechanism |
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2019
- 2019-05-21 CN CN201910423305.6A patent/CN110161645B/en active Active
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| Publication number | Publication date |
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| CN110161645A (en) | 2019-08-23 |
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