CN107703572B - Combined grating - Google Patents
Combined grating Download PDFInfo
- Publication number
- CN107703572B CN107703572B CN201711260899.0A CN201711260899A CN107703572B CN 107703572 B CN107703572 B CN 107703572B CN 201711260899 A CN201711260899 A CN 201711260899A CN 107703572 B CN107703572 B CN 107703572B
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- Prior art keywords
- grating
- ring
- mounting seat
- block
- positioning table
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 6
- 239000002131 composite material Substances 0.000 claims 5
- 230000006978 adaptation Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000003384 imaging method Methods 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 8
- 238000005457 optimization Methods 0.000 description 7
- 238000002474 experimental method Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1814—Diffraction gratings structurally combined with one or more further optical elements, e.g. lenses, mirrors, prisms or other diffraction gratings
- G02B5/1819—Plural gratings positioned on the same surface, e.g. array of gratings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Diffracting Gratings Or Hologram Optical Elements (AREA)
Abstract
The invention relates to a combined grating, which comprises a cylindrical mounting seat, a plurality of grating blocks which are sequentially arranged into grating rings along the circumferential direction of the mounting seat, and a fixing ring which is sleeved on the mounting seat at two sides of the grating rings and presses the outer cambered surface of the grating rings, wherein through holes corresponding to the grating blocks are formed in the mounting seat, the fixing ring is fixedly connected with the mounting seat through bolts, radial adjusting bolts which are propped against the outer cambered surface of each grating block along the radial direction are arranged on the fixing ring in a penetrating manner, an annular groove which is matched with the grating rings is formed in at least one fixing ring, and axial adjusting bolts which are propped against each grating block along the axial direction are arranged on the fixing ring which is provided with the annular groove in a penetrating manner. According to the invention, the independent grating blocks are used for forming the grating ring, so that the processing difficulty is greatly reduced, the manufacturing cost is reduced, and the axial adjusting bolts and the radial adjusting bolts are used for carrying out displacement adjustment on each grating block, so that each surface of the grating ring is in a flush state, and the imaging experimental effect is ensured.
Description
Technical Field
The invention relates to the technical field of die body imaging equipment, in particular to a combined grating for a die body imaging experiment.
Background
In phantom imaging experiments, the light source needs to be processed with the grating to take a picture when the grating is rotated through different angles. However, most of the gratings used at present are of an integrated structure, the manufacturing process is complex, the manufacturing cost is high, alignment is inconvenient during installation, and more time is wasted.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a combined grating which is formed by combining a plurality of grating blocks, thereby being convenient to process and install.
The invention provides a combined grating, which comprises a cylindrical mounting seat, a plurality of grating blocks and a fixing ring, wherein the grating blocks are sequentially arranged into grating rings along the circumferential direction of the mounting seat, the fixing ring is sleeved on the mounting seats at two sides of the grating rings and presses the outer cambered surface of the grating rings, through holes corresponding to the grating blocks are formed in the mounting seats, the fixing ring is fixedly connected with the mounting seat through bolts, radial adjusting bolts radially propped against the outer cambered surface of each grating block are arranged on the fixing ring in a penetrating manner, annular grooves matched with the grating rings are formed in at least one fixing ring, and axial adjusting bolts axially propped against each grating block are arranged on the fixing ring provided with the annular grooves in a penetrating manner.
According to the scheme, the grating blocks are sequentially arranged on the mounting seat to form the grating ring, the fixing rings are used for fixing the grating blocks, the time occupied by mounting is greatly reduced, the radial displacement of the grating blocks can be adjusted by screwing the radial adjusting bolts, the inner surface and the outer surface of the grating ring are flush, the side surface of the grating ring is flush by screwing the axial adjusting bolts, and therefore good experimental effects are guaranteed.
As optimization, one end of the mounting seat far away from the grating ring is fixedly provided with a side plate with a lightening hole, and the side plate is fixedly provided with a shaft sleeve coaxial with the mounting seat. The setting of this optimizing scheme can make the mount pad more swift when being connected with drive arrangement, further reduces experiment preparation work occupation time.
As optimization, two ends of each grating block are respectively provided with a lug boss and a groove which are matched with each other, and adjacent grating blocks are clamped through the lug bosses and the grooves. The optimization scheme not only enables the installation of the grating blocks to be quicker, but also plays a good role in positioning through the mutual matching of the lug boss and the groove.
As optimization, the mounting seat is provided with an annular positioning table positioned at one side of the grating block, and the height of the annular positioning table is the same as the thickness of the grating block. This optimization scheme has set up annular location platform, can regard annular location platform as the benchmark of installing in place when installing the grating piece, has improved installation effectiveness, highly sets up the same with the thickness of grating piece with annular location platform, makes things convenient for the installation of solid fixed ring, has simplified solid fixed ring's structure, has reduced processing cost.
As optimization, the annular positioning table is internally penetrated with axial adjusting bolts which axially push each grating block. The axial displacement of the grating blocks can be adjusted by screwing the axial adjusting bolts, so that the side surfaces of the grating blocks are flush.
As optimization, a plurality of light holes are formed in the mounting seat on one side, far away from the grating block, of the annular positioning table, and one end of a threaded hole matched with the axial adjusting bolt on the annular positioning table is located in the light holes. The weight of the mounting seat can be reduced by arranging the light holes, the end parts of the threaded holes are arranged in the light holes, the length of the threaded holes is greatly reduced, and the adjustment of the axial adjusting bolts is convenient.
The beneficial effects of the invention are as follows: the independent grating blocks are used for forming the grating ring, so that the processing difficulty is greatly reduced, the manufacturing cost is reduced, and the axial adjusting bolts and the radial adjusting bolts are used for carrying out displacement adjustment on the grating blocks, so that all the surfaces of the grating ring are in a flush state, and the imaging experimental effect is ensured.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is an enlarged view of the portion I of FIG. 2;
FIG. 4 is a right side view of FIG. 1;
FIG. 5 is an enlarged view at II in FIG. 4;
The figure shows:
1. the optical grating comprises a grating block, 2, an axial adjusting bolt, 3, a fixed ring, 301, an annular groove, 4, a radial adjusting bolt, 5, a side plate, 6, a mounting seat, 601, an annular positioning table, 602, a light hole, 7 and a shaft sleeve.
Detailed Description
In order to clearly illustrate the technical characteristics of the scheme, the scheme is explained below through a specific embodiment.
The combined grating as shown in fig. 1 comprises a cylindrical mounting seat 6, a plurality of grating blocks 1 which are sequentially arranged into a grating ring along the circumferential direction of the mounting seat, and a fixed ring 3 which is sleeved on the mounting seats on two sides of the grating ring and presses the outer cambered surface of the grating ring, wherein two ends of each grating block are respectively provided with a lug boss and a groove which are matched with each other, and adjacent grating blocks are clamped and connected through the lug bosses and the grooves. The mounting seat 6 is provided with through holes corresponding to the grating blocks, the fixing ring 3 is fixedly connected with the mounting seat 6 through bolts, the fixing ring is provided with radial adjusting bolts 4 which are radially propped against the outer cambered surfaces of the grating blocks, the fixing ring at the outer side is provided with annular grooves 301 which are matched with the grating rings, and the fixing ring at the outer side is provided with axial adjusting bolts 2 which are axially propped against the grating blocks.
The annular positioning table 601 positioned on the inner side of the grating block is arranged on the mounting seat 6, the height of the annular positioning table is the same as the thickness of the grating block, the structure of the fixing ring positioned on the inner side is simplified, and the processing difficulty is reduced. The annular positioning table 601 is internally provided with axial adjusting bolts which axially push each grating block in a penetrating way, a plurality of light holes 602 are formed in a mounting seat on one side, far away from the grating blocks, of the annular positioning table, and one end of a threaded hole matched with the axial adjusting bolts on the annular positioning table is positioned in the light holes 602. The axial adjusting bolt can be screwed in the light hole, so that the operation is more convenient.
The side plate 5 with the lightening holes is fixedly arranged at one end of the mounting seat far away from the grating ring, the shaft sleeve 7 coaxial with the mounting seat 6 is fixedly arranged on the side plate 5, and the connection with the output shaft of the driving motor is facilitated by arranging the shaft sleeve 7.
During installation, each grating block is placed in the circumference of the installation seat in sequence, the axial position is based on that the grating block is attached to the annular positioning table, then two fixing rings are sleeved, the fixing rings are in pretightening connection with the installation seat through bolts, the grating rings formed by the grating blocks are fixed by the fixing rings, each surface of each grating block is enabled to be aligned through adjusting axial adjusting bolts and radial adjusting bolts, the fixing rings are screwed with connecting bolts of the installation seat, and finally the combined grating is installed on the driving motor through a shaft sleeve to perform imaging experiments.
Of course, the above description is not limited to the above examples, and the technical features of the present invention that are not described may be implemented by or by using the prior art, which is not described herein again; the above examples and drawings are only for illustrating the technical scheme of the present invention and not for limiting the same, and the present invention has been described in detail with reference to the preferred embodiments, and it should be understood by those skilled in the art that changes, modifications, additions or substitutions made by those skilled in the art without departing from the spirit of the present invention and the scope of the appended claims.
Claims (6)
1. A combination grating, characterized by: including cylindrical mount pad (6), follow a plurality of grating pieces (1) of grating ring are arranged into in proper order to mount pad circumference to and the cover is established on the mount pad of grating ring both sides and is pushed down fixed ring (3) of grating ring extrados, set up the thru hole that corresponds with each grating piece on mount pad (6), fixed ring (3) pass through bolt and mount pad (6) rigid coupling, and wear to be equipped with radial adjusting bolt (4) along radial top to each grating piece extrados on the fixed ring, be equipped with on at least one fixed ring with ring channel (301) of grating ring adaptation, be equipped with wear to be equipped with on the fixed ring of ring channel along axial adjusting bolt (2) of axial top to each grating piece.
2. A composite grating according to claim 1, wherein: the side plate (5) with the lightening holes is fixedly arranged at one end, far away from the grating ring, of the mounting seat, and the shaft sleeve (7) coaxial with the mounting seat (6) is fixedly arranged on the side plate (5).
3. A composite grating according to claim 1, wherein: two ends of each grating block are respectively provided with a lug boss and a groove which are matched with each other, and adjacent grating blocks are clamped through the lug bosses and the grooves.
4. A composite grating according to claim 1, wherein: an annular positioning table (601) positioned on one side of the grating block is arranged on the mounting seat (6), and the height of the annular positioning table is the same as the thickness of the grating block.
5. A composite grating according to claim 4, wherein: axial adjusting bolts axially propped against each grating block are arranged in the annular positioning table (601) in a penetrating way.
6. A composite grating according to claim 5, wherein: a plurality of light holes (602) are formed in the mounting seat on one side, far away from the grating block, of the annular positioning table, and one end of a threaded hole matched with the axial adjusting bolt on the annular positioning table is located in the light holes (602).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711260899.0A CN107703572B (en) | 2017-12-04 | 2017-12-04 | Combined grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711260899.0A CN107703572B (en) | 2017-12-04 | 2017-12-04 | Combined grating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107703572A CN107703572A (en) | 2018-02-16 |
| CN107703572B true CN107703572B (en) | 2024-07-23 |
Family
ID=61185642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711260899.0A Active CN107703572B (en) | 2017-12-04 | 2017-12-04 | Combined grating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107703572B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371881A (en) * | 2015-11-22 | 2016-03-02 | 长春禹衡光学有限公司 | Integrally-installed split encoder |
| CN207424285U (en) * | 2017-12-04 | 2018-05-29 | 济南大学 | A kind of combination grating |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0439804B1 (en) * | 1989-12-26 | 1995-09-20 | Canon Kabushiki Kaisha | Rotation detecting apparatus |
| JP4376337B2 (en) * | 1999-02-17 | 2009-12-02 | 日本非球面レンズ株式会社 | Optical deflector |
| CN102338165B (en) * | 2011-06-28 | 2013-03-27 | 洛阳轴研科技股份有限公司 | Reflection type control method for monitoring angular displacement of turnable bearing |
| CN104783824B (en) * | 2014-01-20 | 2020-06-26 | 上海联影医疗科技有限公司 | Correction method for X-ray imaging system |
| CN105651320B (en) * | 2016-03-23 | 2017-12-29 | 海安县申菱电器制造有限公司 | A kind of photoelectric encoder |
-
2017
- 2017-12-04 CN CN201711260899.0A patent/CN107703572B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371881A (en) * | 2015-11-22 | 2016-03-02 | 长春禹衡光学有限公司 | Integrally-installed split encoder |
| CN207424285U (en) * | 2017-12-04 | 2018-05-29 | 济南大学 | A kind of combination grating |
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| Publication number | Publication date |
|---|---|
| CN107703572A (en) | 2018-02-16 |
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