CN117406315B - Small-size compact electric diaphragm - Google Patents
Small-size compact electric diaphragm Download PDFInfo
- Publication number
- CN117406315B CN117406315B CN202311723267.9A CN202311723267A CN117406315B CN 117406315 B CN117406315 B CN 117406315B CN 202311723267 A CN202311723267 A CN 202311723267A CN 117406315 B CN117406315 B CN 117406315B
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- hole
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- 238000007789 sealing Methods 0.000 claims description 20
- 244000309464 bull Species 0.000 claims 3
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000003287 optical effect Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/005—Diaphragms
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The invention relates to the technical field of diaphragm application, in particular to a small-size compact electric diaphragm, which comprises a base; the small-size compact electric diaphragm further includes: the diaphragm assembly is used for forming an electric diaphragm; the adjusting assembly is arranged on the base and used for adjusting the position and the angle of the diaphragm hole of the diaphragm assembly; the diaphragm assembly comprises a diaphragm seat, a cover plate is fixedly embedded in the front side of the diaphragm seat, a plurality of mounting holes are formed in the circumference of the rear side wall of the diaphragm seat at equal intervals, and a plurality of diaphragm sheets are circumferentially distributed in the diaphragm seat. According to the diaphragm assembly structure adopted by the invention, the steering engine is used as a drive, the driving gear is used as a transmission, and the position of the diaphragm large gear is controlled by controlling the rotation angle of the steering engine, so that the movable groove pushes the deflection pin to drive the diaphragm sheet to deflect, the size of the aperture of the diaphragm is changed, and the electric diaphragm has the advantages of compact structure, small volume, high precision, large adjustable range and better applicability.
Description
Technical Field
The invention relates to the technical field of diaphragm application, in particular to a small-size compact electric diaphragm.
Background
Diaphragms are used in various optical systems and play an important role, and in most cases, the optical precision instruments have strict size restrictions, so that the structures among parts are compact. The existing diaphragm mechanism has two modes of manual adjustment and electric adjustment, the manual adjustment diaphragm is inconvenient to adjust and low in precision, the manual adjustment diaphragm is not suitable for the accurate adjustment requirement of an optical precise instrument, the common electric adjustment diaphragm is complex, the precision and the adjustment range cannot meet the requirement, the existing electric diaphragm is generally driven by a stepping motor, a gear transmission drives a diaphragm sheet to move, the change of the aperture of light passing is realized, the driving stepping motor of the electric diaphragm is generally 28 types, the size is larger, and the electric diaphragm is difficult to install on some equipment with compact space requirement.
Therefore, an electric diaphragm mechanism with compact structure, small volume, high precision and large adjustable aperture range is needed to meet the requirements of optical precision instruments on clear aperture adjustment.
Disclosure of Invention
In order to achieve the above object, the present invention provides a small-sized compact electric diaphragm including a base; the small-size compact electric diaphragm further includes: the diaphragm assembly is used for forming an electric diaphragm; and the adjusting assembly is arranged on the base and used for adjusting the position and the angle of the diaphragm hole of the diaphragm assembly.
The diaphragm assembly comprises a diaphragm seat, a cover plate is fixedly embedded in the front side of the diaphragm seat, a plurality of mounting holes are formed in the circumference of the rear side wall of the diaphragm seat at equal intervals, a plurality of diaphragm sheets are circumferentially distributed in the diaphragm seat, the inner ends of the plurality of diaphragm sheets enclose into a diaphragm hole, a mounting pin is fixedly connected to the rear side of the diaphragm sheets and is rotationally connected with the corresponding mounting holes, a deflection pin is fixedly connected to the front side of the diaphragm sheets, a diaphragm gear wheel is rotationally connected to the inner side of the cover plate, through holes are formed in the center of the rear side wall of the diaphragm seat, the center of the cover plate and the center of the diaphragm gear wheel, a plurality of movable grooves extending along the radial direction of the diaphragm gear wheel are formed in the circumference of the diaphragm gear wheel at equal intervals, the deflection pin and the movable grooves are in one-to-one corresponding movable connection, a driving gear is connected to the upper end of the diaphragm gear wheel in a meshed mode, the center of the driving gear is fixedly connected to the output end of a steering engine, and the steering engine is fixedly connected to the outer side of the cover plate.
As a preferable technical scheme of the invention, the adjusting component comprises a plurality of sliding rods fixedly connected inside a base, a movable seat is connected between the sliding rods in a sliding way, a spherical hinge seat is fixedly connected to the upper side of the movable seat, a spherical hinge body is movably connected to the center of the upper side of the spherical hinge seat, the spherical hinge body consists of a spherical section and a rectangular section, the rectangular section of the spherical hinge body is fixedly connected to the bottom of a diaphragm seat, a sealing plate is arranged on the upper side of the spherical section of the spherical hinge seat, a through hole is formed in the center of the sealing plate, the diameter of the through hole is smaller than that of the spherical section of the spherical hinge body, a plurality of guide grooves distributed in a circumference way are formed in the upper side of the spherical hinge seat, a plurality of guide pins corresponding to the guide grooves one by one are fixedly connected to the lower side of the sealing plate, and the guide pins are in the guide grooves in a sliding way.
As a preferable technical scheme of the invention, a supporting rod is arranged at the rear side of the movable seat, a fitting groove for being matched with the sliding rods is formed in the upper side surface of the supporting rod at a position corresponding to a plurality of sliding rods, a bolt column is fixedly connected to the center of the upper side surface of the supporting rod, a support plate is integrally formed on the sealing plate at a position corresponding to the supporting rod, the upper end of the bolt column movably penetrates through the support plate, and a fastening nut in contact with the upper side surface of the support plate is connected with the upper end of the bolt column in a threaded manner.
As a preferable technical scheme of the invention, a rubber layer is arranged in the fit groove, and the rubber layer extends along the direction perpendicular to the axis of the slide rod in the mode of wave crest and wave trough.
As a preferable technical scheme of the invention, rubber rings are arranged on the lower side surface of the sealing plate and the inner wall of the through hole, and the inner wall of the through hole is in an inverted cone shape.
As a preferable technical scheme of the invention, the distance between the mounting pin and the center of the aperture of the diaphragm seat is smaller than the distance between the deflection pin and the center of the aperture of the diaphragm seat.
The beneficial effects are that: 1. according to the diaphragm assembly structure adopted by the invention, the steering engine is used as a drive, the driving gear is used as a transmission, and the position of the diaphragm large gear is controlled by controlling the rotation angle of the steering engine, so that the movable groove pushes the deflection pin to drive the diaphragm sheet to deflect, the size of the aperture of the diaphragm is changed, and the electric diaphragm has the advantages of compact structure, small volume, high precision, large adjustable range and better applicability.
2. The steering engine with the magnetic encoder has the advantages of small size, large driving moment, easiness in control and feedback function, saves more space and is more powerful than the traditional motor, has a position recognition function, does not need to additionally arrange a sensor and a sensor related circuit, and has high bearing capacity and compact structure.
3. The adjusting component structure adopted by the invention can adjust the angle, the direction and the position of the light passing hole of the diaphragm according to the requirements, and the diaphragm component can rotate and incline in multiple directions by utilizing the ball hinge characteristic, so that the freedom is stronger and the application range is wider.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a schematic perspective view of a first view of the present invention.
Fig. 2 is a schematic side view partially in cross-section of the present invention.
Fig. 3 is a schematic view of a second perspective of the present invention.
Fig. 4 is a schematic cross-sectional view of the diaphragm holder of the present invention.
Fig. 5 is a schematic structural view of the diaphragm sheet in the present invention.
Fig. 6 is a schematic structural view of the diaphragm sheet and the diaphragm holder after being cut away in the present invention.
Fig. 7 is a schematic cross-sectional view of a diaphragm large gear in the present invention.
Fig. 8 is a schematic perspective view of a diaphragm large gear in the present invention.
In the figure: 1. a base; 2. an adjustment assembly; 21. a slide bar; 22. a movable seat; 23. a tightening rod; 24. a bolt post; 25. a fastening nut; 26. a ball-hinge support; 261. a guide groove; 27. a sealing plate; 271. a guide pin; 28. a spherical hinge body; 3. a diaphragm assembly; 31. a cover plate; 32. a diaphragm seat; 33. steering engine; 34. a mounting hole; 35. a diaphragm sheet; 351. a mounting pin; 352. a deflection pin; 36. a drive gear; 37. a diaphragm gearwheel; 371. a movable groove.
Detailed Description
Embodiments of the invention are described in detail below with reference to the attached drawings, but the invention can be implemented in a number of different ways, which are defined and covered by the claims.
Referring to fig. 1, a small-sized compact-type electric diaphragm includes a base 1; the small-size compact electric diaphragm further includes: a diaphragm assembly 3 for composing an electric diaphragm; and the adjusting assembly 2 is arranged on the base 1 and is used for adjusting the position and the angle of the diaphragm hole of the diaphragm assembly 3.
Referring to fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, the diaphragm assembly 3 includes a diaphragm seat 32, a cover plate 31 is fixedly embedded in the front side of the diaphragm seat 32, a plurality of mounting holes 34 are formed in the circumference of the rear side wall of the diaphragm seat 32 at equal intervals, a plurality of diaphragm plates 35 are circumferentially distributed in the diaphragm seat 32, the inner ends of the plurality of diaphragm plates 35 enclose into a diaphragm hole, a mounting pin 351 is fixedly connected to the rear side of the diaphragm plates 35, the mounting pin 351 is rotationally connected with the corresponding mounting hole 34, a deflection pin 352 is fixedly connected to the front side of the diaphragm plates 35, a diaphragm large gear 37 is rotationally connected to the inner side of the cover plate 31, through holes are formed in the center of the rear side wall of the diaphragm seat 32, the center of the cover plate 31 and the center of the diaphragm large gear 37, a plurality of movable grooves 371 extending radially along the diaphragm plates are formed in the circumference of the side wall of the diaphragm seat 32 at equal intervals, the deflection pin 352 and the movable grooves 371 are in one-to-one movable connection, the upper ends of the diaphragm large gear 37 are in mesh connection with a driving gear 36, the center of the driving gear 36 is fixedly connected to the output end of the diaphragm 33, and the steering engine 33 is fixedly connected to the outside the diaphragm 31.
When the diaphragm aperture control device specifically works, the driving gear 36 is controlled to rotate through the operation of the steering engine 33, the driving gear 36 drives the diaphragm big gear 37 to rotate, and the diaphragm big gear 37 drives the diaphragm sheets 35 to rotate around the central axis of the mounting pin 351 through the cooperation of the movable groove 371 and the deflection pin 352, so that the aperture size of the diaphragm aperture surrounded by each diaphragm sheet 35 is changed.
Referring to fig. 1, 2 and 3, the adjusting component 2 includes a plurality of sliding rods 21 fixedly connected inside the base 1, a movable seat 22 is slidably connected between the sliding rods 21, a spherical hinge seat 26 is fixedly connected to the upper side of the movable seat 22, a spherical hinge body 28 is movably connected to the center of the upper side of the spherical hinge seat 26, the spherical hinge body 28 is composed of a spherical section and a rectangular section, the rectangular section of the spherical hinge body 28 is fixedly connected to the bottom of a diaphragm seat 32, a sealing plate 27 is arranged on the upper side of the spherical section of the spherical hinge seat 26, a through hole is formed in the center of the sealing plate 27, the diameter of the through hole is smaller than the diameter of the spherical section of the spherical hinge body 28, a plurality of circumferentially distributed guide grooves 261 are formed in the upper side of the spherical hinge seat 26, a plurality of guide pins 271 corresponding to the guide grooves 261 are fixedly connected to the lower side of the sealing plate 27, and the guide pins 271 are slidably connected in the guide grooves 261.
During specific work, the movable seat 22 is manually pushed to enable the movable seat 22 to move along the sliding rod 21, so that the position adjustment of the diaphragm assembly 3 is realized, and the spherical hinge body 28 rotates relative to the spherical hinge seat 26 through manually stirring the adjusting assembly 2, so that the inclination angle and the rotation direction of the diaphragm assembly 3 are adjusted.
Referring to fig. 2 and 3, a tightening rod 23 is disposed at the rear side of the moving seat 22, a fitting groove for matching with the sliding rod 21 is formed on the upper side of the tightening rod 23 corresponding to the plurality of sliding rods 21, a bolt column 24 is fixedly connected to the center of the upper side of the tightening rod 23, a support plate is integrally formed on the sealing plate 27 corresponding to the position of the tightening rod 23, the upper end of the bolt column 24 movably passes through the support plate, and a fastening nut 25 in contact with the upper side of the support plate is screwed on the upper end of the bolt column 24.
During specific work, the distance between the support plate and the abutting rod 23 is changed through rotation of the fastening nut 25, so that the fit groove on the abutting rod 23 abuts against the lower end of the sliding rod 21, and the sealing plate 27 is tightly pressed against the spherical section of the spherical hinge body 28, thereby realizing synchronous locking of the positions of the spherical hinge body 28 and the sliding rod 21.
Referring to fig. 2 and 3, a rubber layer is disposed in the engaging groove, and the rubber layer is a wave crest and a wave trough extending along a direction perpendicular to the axis of the sliding rod 21.
In specific work, the rubber pad is used for increasing the abutting degree of the abutting rod 23 and the sliding rod 21, so that the firmness of synchronous locking of the positions of the spherical hinge body 28 and the sliding rod 21 is improved.
Referring to fig. 2, the lower side of the sealing plate 27 and the inner wall of the via hole are both provided with rubber rings, and the inner wall of the via hole is in an inverted cone shape.
In specific work, the rubber ring is used for increasing the compaction degree between the spherical sections of the sealing plate 27 and the spherical hinge body 28, so that the sealing plate 27 is more stable in limiting the position of the spherical hinge body 28, and the firmness of synchronous locking of the positions of the spherical hinge body 28 and the sliding rod 21 is also improved.
Referring to fig. 5, the distance between the mounting pin 351 and the center of the aperture of the diaphragm seat 32 is smaller than the distance between the deflection pin 352 and the center of the aperture of the diaphragm seat 32, so that smooth rotation of the diaphragm sheet 35 is ensured.
The whole working process comprises the following steps: s1: when in use, the driving gear 36 is controlled to rotate through the operation of the steering engine 33, so that the driving gear 36 drives the diaphragm big gear 37 to rotate, and the movable groove 371 of the diaphragm big gear 37 drives the diaphragm sheet 35 to rotate around the central axis of the mounting pin 351 through the deflection pin 352, so that the aperture size of a diaphragm hole surrounded by each diaphragm sheet 35 is changed.
S2: when the adjustment is needed, the movable seat 22 is manually pushed to enable the movable seat 22 to move along the slide rod 21, so that the position adjustment of the diaphragm assembly 3 is realized, and the spherical hinge body 28 rotates relative to the spherical hinge seat 26 through manually stirring the adjusting assembly 2, so that the inclination angle and the rotation direction of the diaphragm assembly 3 are adjusted.
S3: when the position is locked, the distance between the support plate and the abutting rod 23 is changed by rotating the fastening nut 25, so that the engaging groove on the abutting rod 23 abuts against the lower end of the sliding rod 21, and the sealing plate 27 is tightly pressed against the spherical section of the spherical hinge body 28, thereby realizing synchronous locking of the positions of the spherical hinge body 28 and the sliding rod 21.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a compact electronic diaphragm of small-size, includes base (1), its characterized in that: the small-size compact electric diaphragm further includes:
a diaphragm assembly (3) for forming an electric diaphragm;
the adjusting component (2) is arranged on the base (1) and is used for adjusting the position and the angle of a diaphragm hole of the diaphragm component (3);
the diaphragm assembly (3) comprises a diaphragm seat (32), a cover plate (31) is fixedly embedded in the front side of the diaphragm seat (32), a plurality of mounting holes (34) are formed in the circumference of the rear side wall of the diaphragm seat (32) at equal intervals, a plurality of diaphragm sheets (35) are circumferentially distributed in the diaphragm seat (32), a diaphragm hole is formed by surrounding the inner ends of the diaphragm sheets (35), mounting pins (351) are fixedly connected to the rear sides of the diaphragm sheets (35), the mounting pins (351) are rotationally connected with the corresponding mounting holes (34), deflection pins (352) are fixedly connected to the front sides of the diaphragm sheets (35), diaphragm bull gears (37) are rotationally connected to the inner sides of the cover plate (31), through holes are formed in the center of the rear side wall of the diaphragm seat (32), the center of the cover plate (31) and the center of the bull gears (37), a plurality of movable grooves (371) extending along the radial direction of the diaphragm sheets (35) are formed in equal intervals in one-to-one correspondence mode, driving gears (36) are in meshed connection with the upper ends of the bull gears (37), the centers of the driving gears (36) are fixedly connected to the steering gears (33) on the outer sides of the steering gears (33);
the adjusting component (2) comprises a plurality of sliding rods (21) fixedly connected inside the base (1), a movable seat (22) is connected between the sliding rods (21) in a sliding manner, a spherical hinge seat (26) is fixedly connected to the upper side of the movable seat (22), and a sealing plate (27) is arranged on the upper side of a spherical section of the hinge seat (26);
the movable seat is characterized in that a supporting and tightening rod (23) is arranged on the rear side of the movable seat (22), a fitting groove for being matched with the sliding rod (21) is formed in the position, corresponding to the sliding rods (21), of the upper side face of the supporting and tightening rod (23), a bolt column (24) is fixedly connected to the center of the upper side face of the supporting and tightening rod (23), a support plate is integrally formed in the position, corresponding to the supporting and tightening rod (23), of the sealing plate (27), the upper end of the bolt column (24) movably penetrates through the support plate, and a fastening nut (25) in contact with the upper side face of the support plate is connected with the upper end of the bolt column (24) through threads.
2. A compact-size motorized aperture as set forth in claim 1, wherein: the center of the upper side of the ball hinge seat (26) is movably connected with a ball hinge body (28), the ball hinge body (28) is composed of a spherical section and a rectangular section, the rectangular section of the ball hinge body (28) is fixedly connected with the bottom of the diaphragm seat (32), a through hole is formed in the center of the ball sealing plate (27), the diameter of the through hole is smaller than that of the spherical section of the ball hinge body (28), a plurality of guide grooves (261) which are circumferentially distributed are formed in the upper side surface of the ball hinge seat (26), a plurality of guide pins (271) which are in one-to-one correspondence with the guide grooves (261) are fixedly connected to the lower side surface of the sealing plate (27), and the guide pins (271) are slidably connected in the guide grooves (261).
3. A compact-size motorized aperture as set forth in claim 1, wherein: a rubber layer is arranged in the fit groove, and the rubber layer extends along the direction perpendicular to the axis of the sliding rod (21) in a wave crest and wave trough mode.
4. A compact-size motorized aperture as set forth in claim 2, wherein: rubber rings are arranged on the lower side surface of the sealing plate (27) and the inner wall of the through hole, and the inner wall of the through hole is in an inverted cone shape.
5. A compact-size motorized aperture as set forth in claim 1, wherein: the distance between the mounting pin (351) and the center of the through hole of the diaphragm seat (32) is smaller than the distance between the deflection pin (352) and the center of the through hole of the diaphragm seat (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311723267.9A CN117406315B (en) | 2023-12-15 | 2023-12-15 | Small-size compact electric diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311723267.9A CN117406315B (en) | 2023-12-15 | 2023-12-15 | Small-size compact electric diaphragm |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117406315A CN117406315A (en) | 2024-01-16 |
| CN117406315B true CN117406315B (en) | 2024-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311723267.9A Active CN117406315B (en) | 2023-12-15 | 2023-12-15 | Small-size compact electric diaphragm |
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| Country | Link |
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| CN (1) | CN117406315B (en) |
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| CN117406315A (en) | 2024-01-16 |
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