CN203909374U - Clamping device of large-caliber diffraction grating - Google Patents
Clamping device of large-caliber diffraction grating Download PDFInfo
- Publication number
- CN203909374U CN203909374U CN201420296867.1U CN201420296867U CN203909374U CN 203909374 U CN203909374 U CN 203909374U CN 201420296867 U CN201420296867 U CN 201420296867U CN 203909374 U CN203909374 U CN 203909374U
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- diffraction grating
- heavy caliber
- picture frame
- caliber diffraction
- clamping device
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- 230000001105 regulatory effect Effects 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 4
- 239000004429 Calibre Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model relates to a clamping device of a large-caliber diffraction grating, which comprises a picture frame, a main positioning plate arranged at the edge of the picture frame and four pressing arm groups respectively arranged at the four corners of the picture frame; the large-aperture diffraction grating to be clamped is arranged in the mirror frame and is stopped against the main positioning plate; the pressing arm set presses the large-caliber diffraction grating to be clamped and is connected with the mirror frame. The utility model provides a can install and transfer rapidly and clamping device of heavy-calibre diffraction grating that the precision is high.
Description
Technical field
The utility model belongs to optical element integration techno logy field, relates to a kind of clamping tooling, relates in particular to a kind of clamping device of heavy caliber diffraction grating.
Background technology
As the key device of the every major parameter of accurate diagnosis diffraction grating, there is test bore large (detected element bore is greater than 430mm * 430mm), quantity many (hundred magnitudes), measuring accuracy requires high problem.Conventional clamp method is to fix element by positioning pressuring plate and jackscrew, need to dismantle pressing plate and loosening whole jackscrews while changing element, wastes time and energy, and is also difficult to accurately element is positioned at the center of picture frame; Fixing pressing plate usually can cause the contact of face-face in fact to become the contact of line-face because of processing or assembling deviation when contacting with element, and the local stress producing so just directly has influence on component side shape.
Utility model content
In order to solve the above-mentioned technical matters existing in background technology, the utility model provides a kind of and can debug rapidly and the clamping device of the heavy caliber diffraction grating that precision is high.
Technical solution of the present utility model is: the utility model provides a kind of clamping device of heavy caliber diffraction grating, and its special character is: four clamping arm groups that the clamping device of described heavy caliber diffraction grating comprises picture frame, is arranged on the main location-plate at picture frame edge and is separately positioned on four jiaos, picture frame; Heavy caliber diffraction grating to be held is placed in picture frame and only leans against on main location-plate; Described clamping arm group is suppressed heavy caliber diffraction grating to be held and is connected with picture frame.
Above-mentioned clamping arm group comprises clamping arm and for suppressing the pressurizing unit of heavy caliber diffraction grating to be held; The through hole that is provided with the threaded hole for being fixedly connected with picture frame and passes for pressurizing unit on described clamping arm; Described clamping arm is connected with picture frame by the screw thread being arranged in threaded hole; Described pressurizing unit stretches in through hole and only leans against on heavy caliber diffraction grating to be held.
Above-mentioned pressurizing unit comprises ball screw, briquetting and Anti-slip cover; In described through hole, be provided with swivel nut or screw thread; Described briquetting and Anti-slip cover form airtight cavity; Described ball screw comprises bulb and the screw rod being connected with bulb; Described bulb is arranged on briquetting and Anti-slip cover forms in airtight cavity; Described screw rod screws in swivel nut or screw thread and pushes airtight cavity by bulb airtight cavity is only leaned against on heavy caliber diffraction grating to be held.
Above-mentioned briquetting and Anti-slip cover form by polytetrafluoroethylmaterial material.
Above-mentioned pressurizing unit also comprises and being arranged on ball screw and away from the knob of bulb one end; Described knob screws in swivel nut or screw thread by screw rod.
Above-mentioned pressurizing unit also comprises the holding screw arranging on knob.
The clamping device of above-mentioned heavy caliber diffraction grating also comprises the centralizer being arranged on picture frame; Described centralizer at least comprises a pair of regulating device that centers; The described regulating device that centers comprise be symmetricly set on picture frame for holding out against the adjustable screw of heavy caliber diffraction grating to be held and for holding out against heavy caliber diffraction grating to be held and measuring the spiral micrometer group in gap between heavy caliber diffraction grating to be held and picture frame.
The above-mentioned regulating device that centers is two pairs; Described two pairs of adjustable screws and two pairs of spiral micrometer groups are successively set on four frames of picture frame.
The utility model has the advantages that:
The utility model provides a kind of clamping device of heavy caliber diffraction grating, and this device comprises picture frame and is arranged on clamping arm and the main location-plate on picture frame; Clamping arm is divided into four groups, is symmetrically distributed in four diagonal angles of picture frame, plays the effect of front supporting protection element, by rotatably compressing arm, can realize the fast clamp of diffraction grating and loosen; Adjusting knob can be controlled the gap between briquetting and diffraction grating, and the airtight cavity being comprised of Anti-slip cover and briquetting parcel ball screw has formed a flexible structure, making briquetting is movable (fine motion), when compressing grating, just can make whole end face contact with grating surface like this, avoid two not parallel local stresses of bringing of surface of contact.Adjustable screw is distributed in left side and the below of picture frame, plays the effect that holds out against diffraction grating; Spiral micrometer group is distributed in right side and the top of picture frame, play hold out against diffraction grating and measure grating and picture frame between the effect in gap.Therefore, being used in combination of adjustable screw and spiral micrometer group can be measured gap length between diffraction grating and picture frame quickly and accurately, and diffraction grating is positioned to the center of picture frame, guarantees that its center overlaps with measurement coordinate points.The clamping device of heavy caliber diffraction grating provided by the utility model is the whole process that enters frame, clamping and centering to each piece diffraction grating, need to be by other instrument, singlely in 5 minutes, can complete, installation accuracy can reach 0.02mm, solved the problem of heavy caliber diffraction grating fast clamp and precision centering, eliminated by briquetting and the not parallel local stress of bringing of minute surface, the while is also for the short run fast clamp detection of heavy-calibre element provides a kind of effective design clamping device.
Accompanying drawing explanation
Fig. 1 is the structural representation of the clamping device of heavy caliber diffraction grating provided by the utility model;
Fig. 2 is the side-looking structural representation of Fig. 1;
Fig. 3 is the structural representation of the clamping arm that adopts of the utility model;
Wherein:
1-heavy caliber diffraction grating to be held; 2-picture frame; The main location-plate of 3-; 4-clamping arm group; 6-adjustable screw; 7-spiral micrometer group; 41-clamping arm; 42-swivel nut; 43-ball screw; 44-knob; 45-Anti-slip cover; 46-briquetting; 47-holding screw.
Embodiment
Referring to Fig. 1, Fig. 2 and Fig. 3, the utility model provides a kind of clamping device of heavy caliber diffraction grating, four clamping arm groups that the clamping device of this heavy caliber diffraction grating comprises picture frame 2, is arranged on the main location-plate 3 at picture frame 2 edges and is separately positioned on 2 four jiaos, picture frame; Heavy caliber diffraction grating 1 to be held is placed in picture frame and only leans against on main location-plate; Clamping arm group is suppressed heavy caliber diffraction grating 1 to be held and is connected with picture frame.
Clamping arm group 4 comprises clamping arm 41 and for suppressing the pressurizing unit of heavy caliber diffraction grating 1 to be held; On clamping arm 41, be provided with the threaded hole for being fixedly connected with picture frame 2 and the through hole passing for pressurizing unit; Clamping arm 41 is connected with picture frame 2 by the screw thread being arranged in threaded hole; Pressurizing unit stretches in through hole and only leans against on heavy caliber diffraction grating 1 to be held.
Pressurizing unit comprises ball screw 43, briquetting 46 and Anti-slip cover 45; In through hole, be provided with swivel nut 42 or screw thread; Briquetting 46 forms airtight cavity with Anti-slip cover 45; Ball screw 43 comprises bulb and the screw rod being connected with bulb; Bulb is arranged on briquetting 46 and forms in airtight cavity with Anti-slip cover 45; Screw rod screws in swivel nut 42 or screw thread and pushes airtight cavity by bulb airtight cavity is only leaned against on heavy caliber diffraction grating 1 to be held.
Briquetting 46 and Anti-slip cover 45 form by polytetrafluoroethylmaterial material.
Pressurizing unit also comprises and being arranged on ball screw 43 and away from the knob 44 of bulb one end; Knob 44 screws in swivel nut 42 or screw thread by screw rod.
Pressurizing unit also comprises the holding screw 47 arranging on knob 44.
The clamping device of heavy caliber diffraction grating also comprises the centralizer being arranged on picture frame; Centralizer at least comprises a pair of regulating device that centers; The regulating device that centers comprise be symmetricly set on picture frame for holding out against the adjustable screw 6 of heavy caliber diffraction grating 1 to be held and for holding out against heavy caliber diffraction grating 1 to be held and measuring the spiral micrometer group 7 in gap between heavy caliber diffraction grating 1 to be held and picture frame.
The regulating device that centers is two pairs; Two pairs of adjustable screws 6 and two pairs of spiral micrometer groups 7 are successively set on four frames of picture frame.
Comprise picture frame and be arranged on clamping arm and the main location-plate on picture frame.Clamping arm is divided into four groups, is symmetrically distributed in four diagonal angles of picture frame, plays the effect of front supporting protection element, by rotatably compressing arm, can realize the fast clamp of diffraction grating and loosen.Clamping arm is comprised of knob 44, ball screw 43, swivel nut 42, Anti-slip cover 45 and briquetting 46, and wherein Anti-slip cover 45 and briquetting 46 are polytetrafluoroethylmaterial materials.Adjusting knob 44 can be controlled the gap between briquetting 46 and diffraction grating, and the airtight cavity being comprised of Anti-slip cover 45 and briquetting 46 parcel ball screw 43 has formed a flexible structure, making briquetting 46 is movable (fine motions), when compressing grating, just can make whole end face contact with grating surface like this, avoid two not parallel local stresses of bringing of surface of contact.
This device also comprises adjustable screw 6 and the spiral micrometer group 7 arranging in picture frame surrounding.Adjustable screw 6 is distributed in left side and the below of picture frame, plays the effect that holds out against diffraction grating; Spiral micrometer group 7 is distributed in right side and the top of picture frame, play hold out against diffraction grating and measure grating and picture frame between the effect in gap.Therefore, being used in combination of adjustable screw 6 and spiral micrometer group 7 can be measured gap length between diffraction grating and picture frame quickly and accurately, and diffraction grating is positioned to the center of picture frame, guarantees that its center overlaps with measurement coordinate points.
As shown in Figure 1, the fast clamp of diffraction grating is actually a process with centering, and its operating process is: 1. by lifting table, diffraction grating is put into picture frame gently, and make it to be close to main location-plate; 2. the adjustable screw 6 that rotates picture frame left side makes diffraction grating near the right side of frame, and rotation right side spiral micrometer group 7 makes its end just stick diffraction grating right side, writes down now spiral micrometer head reading; 3. unclamp the adjustable screw 6 in left side, the spiral micrometer group 7 on rotation right side promotes diffraction grating near the left side of picture frame, write down the now reading of spiral micrometer head, twice reading subtracted each other and be diffraction grating and picture frame gap width in the horizontal direction, then adjustable screw 6 micrometer heads, it is the center that diffraction grating is in horizontal direction that left and right sides gap width is equated; 4. same method makes diffraction grating be in vertical direction center, now diffraction grating is positioned to the center of picture frame, finally rotatably compresses arm and enters frame, tightens knob 44 and makes briquetting 46 push down gently four diagonal angles of diffraction grating.
Claims (8)
1. a clamping device for heavy caliber diffraction grating, is characterized in that: four clamping arm groups that the clamping device of described heavy caliber diffraction grating comprises picture frame, is arranged on the main location-plate at picture frame edge and is separately positioned on four jiaos, picture frame; Heavy caliber diffraction grating to be held is placed in picture frame and only leans against on main location-plate; Described clamping arm group is suppressed heavy caliber diffraction grating to be held and is connected with picture frame.
2. the clamping device of heavy caliber diffraction grating according to claim 1, is characterized in that: described clamping arm group comprises clamping arm and for suppressing the pressurizing unit of heavy caliber diffraction grating to be held; The through hole that is provided with the threaded hole for being fixedly connected with picture frame and passes for pressurizing unit on described clamping arm; Described clamping arm is connected with picture frame by the screw thread being arranged in threaded hole; Described pressurizing unit stretches in through hole and only leans against on heavy caliber diffraction grating to be held.
3. the clamping device of heavy caliber diffraction grating according to claim 2, is characterized in that: described pressurizing unit comprises ball screw, briquetting and Anti-slip cover; In described through hole, be provided with swivel nut or screw thread; Described briquetting and Anti-slip cover form airtight cavity; Described ball screw comprises bulb and the screw rod being connected with bulb; Described bulb is arranged on briquetting and Anti-slip cover forms in airtight cavity; Described screw rod screws in swivel nut or screw thread and pushes airtight cavity by bulb airtight cavity is only leaned against on heavy caliber diffraction grating to be held.
4. the clamping device of heavy caliber diffraction grating according to claim 3, is characterized in that: described briquetting and Anti-slip cover form by polytetrafluoroethylmaterial material.
5. the clamping device of heavy caliber diffraction grating according to claim 4, is characterized in that: described pressurizing unit also comprises and being arranged on ball screw and away from the knob of bulb one end; Described knob screws in swivel nut or screw thread by screw rod.
6. the clamping device of heavy caliber diffraction grating according to claim 5, is characterized in that: described pressurizing unit also comprises the holding screw arranging on knob.
7. according to the clamping device of the heavy caliber diffraction grating described in the arbitrary claim of claim 1-6, it is characterized in that: the clamping device of described heavy caliber diffraction grating also comprises the centralizer being arranged on picture frame; Described centralizer at least comprises a pair of regulating device that centers; The described regulating device that centers comprise be symmetricly set on picture frame for holding out against the adjustable screw of heavy caliber diffraction grating to be held and for holding out against heavy caliber diffraction grating to be held and measuring the spiral micrometer group in gap between heavy caliber diffraction grating to be held and picture frame.
8. the clamping device of heavy caliber diffraction grating according to claim 7, is characterized in that: described in the regulating device that centers be two pairs; Described two pairs of adjustable screws and two pairs of spiral micrometer groups are successively set on four frames of picture frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296867.1U CN203909374U (en) | 2014-06-05 | 2014-06-05 | Clamping device of large-caliber diffraction grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420296867.1U CN203909374U (en) | 2014-06-05 | 2014-06-05 | Clamping device of large-caliber diffraction grating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203909374U true CN203909374U (en) | 2014-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420296867.1U Expired - Lifetime CN203909374U (en) | 2014-06-05 | 2014-06-05 | Clamping device of large-caliber diffraction grating |
Country Status (1)
| Country | Link |
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| CN (1) | CN203909374U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062735A (en) * | 2014-06-05 | 2014-09-24 | 中国科学院西安光学精密机械研究所 | Clamping device and clamping method for large-aperture diffraction grating |
-
2014
- 2014-06-05 CN CN201420296867.1U patent/CN203909374U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104062735A (en) * | 2014-06-05 | 2014-09-24 | 中国科学院西安光学精密机械研究所 | Clamping device and clamping method for large-aperture diffraction grating |
| CN104062735B (en) * | 2014-06-05 | 2017-01-04 | 中国科学院西安光学精密机械研究所 | Clamping device and clamping method for large-aperture diffraction grating |
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