CN105467552B - A kind of prism pose adjustment mechanism - Google Patents
A kind of prism pose adjustment mechanism Download PDFInfo
- Publication number
- CN105467552B CN105467552B CN201510930828.1A CN201510930828A CN105467552B CN 105467552 B CN105467552 B CN 105467552B CN 201510930828 A CN201510930828 A CN 201510930828A CN 105467552 B CN105467552 B CN 105467552B
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- Prior art keywords
- screw
- prism
- seat
- rotating shaft
- pushing tow
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Classifications
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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
- G02B7/18—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors
- G02B7/1805—Mountings, adjusting means, or light-tight connections, for optical elements for prisms; for mirrors for prisms
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
The present invention relates to a kind of prism pose adjustment mechanism.Including the overall stationary seat axially set gradually from outside to inside of mechanism, locking swivel nut, dynamic seat, prism rotating shaft；Prism rotating shaft insertion locking swivel nut, sit quietly and dynamic seat；Vertical direction is provided with dynamic seat between stationary seat and prism rotating shaft；It is dynamic that three-dimensional regulation is realized by the drawing of three top three or the drawing of two top two or screw stage clip pushing tow structure between seat and stationary seat；Prism rotating shaft is coordinated with dynamic seat by the face of cylinder realizes that the angular displacement around axle is adjusted, and locking swivel nut is used for the locking of the free degree；Prism rotating shaft realizes axial pretightening with dynamic seat by pre-loading screw group；Prism rotating shaft lower end is bonded with block prism by construction adhesive.The invention provides a kind of prism pose adjustment mechanism that can realize four-dimensional regulation.
Description
Technical field
The invention belongs to optical precision instrument field, is related to a kind of prism, more particularly to a kind of prism pose adjustment mechanism.
Background technology
In Optical Instrument Designing, according to the needs of actual light path, often to pass through the position of prism change systematic optical axis
And direction.The adjustment of prism pose realizes by prism pose adjustment mechanism, prism as a kind of modular optical element,
Laboratory back warp is frequently with multidimensional adjusting table as its pose adjustment mechanism.There is many to be directed to multidimensional on domestic and international market at present
The enterprise of platform research and development is adjusted, the product of these enterprises can meet what laboratory Experiments of Optics adjusted with prism pose in detection substantially
Need.But for the component prism in optical instrument, the adjustment mechanism used in it requires easy to adjust, degree of regulation is high,
Stability is good, and adjustment mechanism is subjected to the limitation of locus, and the approved product of these requirements in the market is difficult to fully meet.
In order to meet the needs of optical instrument, prism pose adjustment mechanism is often required to designed, designed.
The content of the invention
To realize the needs that optical instrument is previously mentioned in background technology, the present invention provides a kind of prism pose adjustment mechanism,
To meet the needs of small yardstick prism various dimensions accurately adjust.
Technical scheme provided by the present invention is：A kind of prism pose adjustment mechanism, it is characterized in that：Including quiet
Seat, locking swivel nut, dynamic seat, prism rotating shaft, block prism；The prism rotating shaft insertion locking swivel nut and dynamic seat；
Vertical direction is provided with dynamic seat between the locking swivel nut and prism rotating shaft；
The prism rotating shaft lower end connects block prism；
The prism rotating shaft realizes axial pretightening with dynamic seat by pre-loading screw group；
The locking swivel nut is arranged in the opening in the middle part of stationary seat and gap between stationary seat be present；
The prism rotating shaft is with being at least uniformly provided with two screws for being used to install pre-loading screw group on the contact surface of dynamic seat
Hole；The dynamic seat and the contact surface of prism rotating shaft are provided with ring-type deep gouge；
The deep gouge bottom is provided with the arcuate socket with the screw hole equivalent on the contact surface of prism rotating shaft and dynamic seat；
The thread segment for screwing in locking swivel nut is provided with the contact surface of the prism rotating shaft and locking swivel nut；
The stationary seat is connected or by pushing tow screw group and the group connection of drawing screw with dynamic seat by pulling screw group；
Three or four or six holes are evenly equipped with the same circumference of the stationary seat end face；
When being evenly equipped with three holes on the same circumference of stationary seat end face, three holes are through hole；The stationary seat and dynamic seat are only
Connected by pulling screw group；The drawing screw group includes the first drawing screw, the second drawing screw, the 3rd drawing screw；
Screw section between the stationary seat and dynamic seat is arranged with the compression spring for keeping stationary seat and the position orientation relation of dynamic seat；
When being evenly equipped with four holes on the same circumference of stationary seat end face, two of which be screw, two be through hole；With two
What screw coordinated has the first pushing tow screw and the second pushing tow screw that pushing tow screw group is included；Led with what two through holes coordinated
Draw the first drawing screw and the second drawing screw that screw group is included；The stationary seat end face is in 0 °, 180 ° of arrangement pushing tow screws
Two included pushing tow screws of group, in two drawing screws that 90 °, 270 ° of arrangement drawing screw groups are included, form two tops
Two annexations drawn；The drawing screw and stationary seat contact surface are ball-and-socket contact structures；Two pushing tow screw upper end bulbs with
Dynamic seat outer shroud end face forms higher pair contact；
When being evenly equipped with six holes on the same circumference of stationary seat end face, wherein three be screw, three be through hole；The spiral shell
Hole is intervally arranged with through hole；The the first pushing tow screw for thering is pushing tow screw group to be included, the second pushing tow spiral shell coordinated with three screws
Nail, the 3rd pushing tow screw；The the first drawing screw, the second drawing spiral shell that there is drawing screw group to be included coordinated with three through holes
Nail, the 3rd drawing screw；The stationary seat forms the connection drawn on three tops three with drawing screw group by pushing tow screw group with dynamic seat and closed
System；Three screws that three pushing tow screws that the pushing tow screw group is included are screwed on stationary seat, three pushing tow screw upper end balls
Head forms higher pair with dynamic seat outer shroud end face and contacted；Three drawing screws that the drawing screw group is included pass through three on stationary seat
Individual through hole, it is connected with three screws on dynamic seat end face；The drawing screw and stationary seat contact surface are sphere-contact structure；
At least provided with three dresses for being used to for whole prism pose adjustment mechanism to be fixed on optical system on above-mentioned stationary seat
With the through hole in reference plane；
Above-mentioned pre-loading screw group includes at least two pre-loading screws；Above-mentioned pre-loading screw is by hexagon socket cap head screw, rubber
Glue spring washer and two polytetrafluoroethylene (PTFE) skidding compositions；
The end mill of end cylindrical section two of above-mentioned prism rotating shaft is put down for installation and adjustment handwheel.
It is an advantage of the invention that：Prism pose adjustment mechanism overall structure provided by the present invention has rigidity height, antivibration
The characteristics of ability is strong, degree of regulation is high, solves the contradiction between limited design space and high accuracy regulation.As regulation machine
Its regulation resolving power of structure is also an important criterion.The prism pose adjustment mechanism is using regulation manually, wherein bowing
The elevation angle and deflection angle regulation realize that the mode that top pull combines can not only realize essence by six special closely-pitched hexagon socket cap head screws
Close regulation can realize reliable locking simultaneously.
The prism pose adjustment mechanism of the present invention can realize three-dimensional regulation, including angle of pitch adjustable range：±2°；Beat
Angle adjustable range：±2°；Rotation adjustable range around the shaft：± 5 °, the straight-line displacement adjustable range of rotor shaft direction：±3㎜；This
The adjustable range of four frees degree disclosure satisfy that being actually needed for optical detection engineering.
Brief description of the drawings
Fig. 1 is the structural representation (positive view) of the present invention.
Fig. 2 is the external structure schematic diagram (top view) of the present invention.
Fig. 3 is the axonometric drawing of the present invention.
Fig. 4 is use illustration of the present invention in optical system.
Fig. 5 is prism rotating shaft front view and top view
Wherein, 1- locking swivel nuts, 2- stationary seats, 3- move seat, the rotating shaft of 4- prisms, 5- block prisms, the first pushing tows of 61- screw,
The second pushing tows of 62- screw, the pushing tow screws of 63- the 3rd, 71- first pull screw, 72- second pulls screw, 73- the 3rd pulls spiral shell
Nail, the first pre-loading screws of 81- component, the second pre-loading screws of 82- component, the pre-loading screw components of 83- the 3rd, 9- stationary seats connecting hole,
10- prism pose adjustment mechanisms.
Embodiment
Referring to Fig. 1-5, a kind of prism pose adjustment mechanism, including it is stationary seat 2, locking swivel nut 1, dynamic seat 3, prism rotating shaft 4, vertical
Square glass prism 5；Prism rotating shaft 4 penetrates locking swivel nut 1 and dynamic seat 3；Set between locking swivel nut 1 and prism rotating shaft 4 in vertical direction
There is seat 3；The lower end of prism rotating shaft 4 is bonded with block prism 5 by construction adhesive；Prism rotating shaft 4 passes through pretension spiral shell with dynamic seat
Nail group realizes axial pretightening；Locking swivel nut 1 is arranged in the opening at the middle part of stationary seat 2 and gap be present between stationary seat 2；Prism turns
Axle 4 is with being at least uniformly provided with two screw holes for being used to install pre-loading screw group on the contact surface of dynamic seat 3；Dynamic seat 3 turns with prism
The contact surface of axle 4 is provided with ring-type deep gouge；Deep gouge bottom is provided with and the screw hole on the contact surface of prism rotating shaft 4 and dynamic seat 3
The arcuate socket of equivalent；Prism rotating shaft 4 is with being provided with the thread segment for screwing in locking swivel nut on the contact surface of locking swivel nut 1；It is quiet
Seat 2 is connected with dynamic seat 3 by pushing tow screw group with drawing screw group；Pushing tow screw group is pushed up including the first pushing tow screw 61, second
Push away screw 62, the 3rd pushing tow screw 63；Pulling screw group includes the first drawing drawing drawing of screw the 72, the 3rd of screw 71, second
Screw 73；Three or four or six holes are evenly equipped with the same circumference of the end face of stationary seat 2；
When being evenly equipped with three holes on the same circumference of stationary seat end face, three holes are through hole；Stationary seat 2 is only logical with dynamic seat 3
Cross the connection of drawing screw group；Pulling screw group includes the first drawing drawing drawing screw 73 of screw the 72, the 3rd of screw 71, second；
Screw section between stationary seat 2 and dynamic seat 3 is arranged with the compression spring for keeping stationary seat 2 and the position orientation relation of dynamic seat 3；
When being evenly equipped with four holes on the same circumference of the end face of stationary seat 2, two of which screw, two through holes；Pushing tow screw
Group includes the first pushing tow screw 61, the second pushing tow screw 62；Pulling screw group includes the first drawing drawing screw of screw 71, second
72；Two pushing tow screws are arranged in the end face of stationary seat 2 in 0 °, 180 °, and the drawing of two top two is formed in 90 °, 270 ° of arrangements, two drawing screws
Annexation；It is ball-and-socket contact structures that screw, which is pulled, with stationary seat contact surface；Two pushing tow screw upper end bulbs and dynamic seat outer shroud
End face forms higher pair contact；
When being evenly equipped with six holes on the same circumference of the end face of stationary seat 2, wherein three screws, three through holes；Screw is with leading to
Hole is intervally arranged；Pushing tow screw group includes the first pushing tow screw 61, the second pushing tow screw 62, the 3rd pushing tow screw 63；Pull spiral shell
Nail group includes the first drawing screw 71, second and pulls the drawing screw 73 of screw the 72, the 3rd；Stationary seat 2 passes through pushing tow screw with dynamic seat 3
Group forms the annexation drawn on three tops three with drawing screw group；Three pushing tow screws that pushing tow screw group is included screw in stationary seat 2
On three screws, three pushing tow screw upper end bulbs and the dynamic outer shroud end face of seat 3 form higher pair and contacted；Drawing screw group is included
Three drawing screws through three through holes on stationary seat 2, be connected with three screws on the dynamic end face of seat 3；Pull screw with
The contact surface of stationary seat 2 is sphere-contact structure；
At least provided with three assembling bases for being used to for whole prism pose adjustment mechanism to be fixed on optical system on stationary seat 2
Through hole on quasi- face；
Pre-loading screw group includes at least two pre-loading screws；Pre-loading screw by hexagon socket cap head screw, rubber spring washer with
And two polytetrafluoroethylene (PTFE) skidding compositions；
The end mill of end cylindrical section two of prism rotating shaft is put down for installation and adjustment handwheel.
Prism pose adjustment mechanism can be divided into angle of pitch governor motion, deflection angle governor motion, rotation around the shaft by function
Turn governor motion, the straight-line displacement governor motion of rotor shaft direction, it is an organic whole that each several part is coupled by precision-fit.
Block prism is Nian Jie with prism rotating shaft by construction adhesive, specific technique for sticking should be used to ensure block prism
Microstress bonding.
The block prism 5 is be bonded with prism rotating shaft 4 by construction adhesive, is to ensure that block prism 5 produces in bonding
Less adhesive stress, it is desirable to which bondline thickness and gum spot area meet certain requirements after bonding, the bonding plane requirement of prism rotating shaft 4
With higher flatness；
The prism rotating shaft 4 coordinates with dynamic seat 3 for the small―gap suture face of cylinder, and three are provided with the step surface of prism rotating shaft 4
The screw hole of cloth, moving on the large end face of seat 3 has ring-type deep gouge, and three uniform arcuate sockets, the prism rotating shaft 4 are arranged at deep gouge bottom
Axial pretightening is realized by pre-loading screw group with dynamic seat 3；The pre-loading screw component 81,82,83 by hexagon socket cap head screw,
Rubber spring washer and two polytetrafluoroethylene (PTFE) skidding compositions, adjust the size of axial pre tightening force, it is ensured that prism rotating shaft 4 can be reliably
Rotate；The end mill of end cylindrical section two of prism rotating shaft 4 is put down for installation and adjustment handwheel.The shape of the stationary seat is not limited to rectangular
Shape, according to the limitation of system and it can need to carry out Interface design.
As shown in Figure 1 to Figure 3, the prism pose adjustment mechanism can be divided into three layers from top to bottom from space layout, respectively
Undertake different functions.Stationary seat 2 forms the connected mode drawn on three tops three with dynamic seat 3 by pushing tow screw group and drawing screw group,
And spiral shell is pulled by the first pushing tow screw 61, the second pushing tow screw 62, the 3rd pushing tow screw 63 and the first drawing screw 71, second
The top pull of the drawing screw 73 of nail the 72, the 3rd realizes the regulation of prism pitching angle, deflection angle regulation and the straight-line displacement along rotor shaft direction
Regulation.In addition, can also use the connected mode that two tops two are drawn between stationary seat 2 and dynamic seat 3, this mode is by adjusting 0 °, 180 °
Two pushing tow screws and 90 °, 270 ° of two drawing screws come realize the regulation of prism pitching angle, deflection angle regulation with along rotor shaft direction
Straight-line displacement regulation；The third situation, according to three drawing screws between stationary seat 2 and dynamic seat 3, and in stationary seat 2 and dynamic seat 3
Between screw section set compression spring connected mode, then need to only adjust three drawing screws, you can realize above-mentioned three from
By the regulation spent.
The prism rotating shaft 4 coordinates with dynamic seat 3 for the small―gap suture face of cylinder, and three are provided with the step surface of prism rotating shaft 4
The screw hole of cloth, moving on the large end face of seat has ring-type deep gouge, and three uniform arcuate sockets, the prism rotating shaft 4 are arranged at deep gouge bottom
With dynamic seat 3 axial pretightening is realized by three pre-loading screw groups；The pre-loading screw group is by hexagon socket cap head screw, rubber bullet
Pad and two polytetrafluoroethylene (PTFE) skidding compositions, adjust the size of axial pre tightening force, it is ensured that prism rotating shaft 4 can be rotated reliably；
The end mill of end cylindrical section two of prism rotating shaft 4 is put down for installation and adjustment handwheel.
The locking swivel nut 1 screws in the thread segment of prism rotating shaft 4, and prism 5 is adjusted to around the angular displacement of the axis of prism rotating shaft 4
Behind position, screwing locking swivel nut 1 makes its end face compress the locking for realizing prism rotating shaft 4 with dynamic seat inner ring end face；
The prism pose adjustment mechanism prism attachment face diameter size is 15mm, can be bonded major cross sectional dimension and be less than
10mm small yardstick block prism.The bonding plane of prism rotating shaft as shown in Figure 5 is on the cylinder end face that diameter dimension is 15mm
Deep gouge is milled out, two end mills of deep gouge lead to, deep gouge is ground afterwards, it is desirable to which bonding plane has a preferable flatness, in bonding
To ensure that block prism produces less adhesive stress, it is desirable to which bondline thickness and gum spot area meet certain requirements after bonding, lead to
Often it can ensure that the gap of prism and bonding plane is bondline thickness using clearance gauge at the both ends of groove bonding plane.
The prism pose adjustment mechanism by handwheel and special closely-pitched hexagon socket cap head screw come adjust respectively the angle of pitch,
Deflection angle, rotation around the shaft, the straight-line displacement of rotor shaft direction.According to requirements, prism pose adjustment mechanism can use
Micro-step motor replace handwheel and special closely-pitched hexagon socket cap head screw to adjust with realize prism pose adjustment mechanism from
Dynamicization controls.
Claims (4)
- A kind of 1. prism pose adjustment mechanism, it is characterised in that：Including stationary seat, locking swivel nut, dynamic seat, prism rotating shaft, cube edge Mirror；The prism rotating shaft insertion locking swivel nut and dynamic seat；Vertical direction is provided with dynamic seat between the locking swivel nut and prism rotating shaft；The prism rotating shaft lower end connects block prism；The prism rotating shaft realizes axial pretightening with dynamic seat by pre-loading screw group；The locking swivel nut is arranged in the opening in the middle part of stationary seat and gap between stationary seat be present；The prism rotating shaft is with being at least uniformly provided with two screw holes for being used to install pre-loading screw group on the contact surface of dynamic seat；Institute State seat and the contact surface of prism rotating shaft is provided with ring-type deep gouge；The deep gouge bottom is provided with the arcuate socket with the screw hole equivalent on the contact surface of prism rotating shaft and dynamic seat；The thread segment for screwing in locking swivel nut is provided with the contact surface of the prism rotating shaft and locking swivel nut；The stationary seat is connected or by pushing tow screw group and the group connection of drawing screw with dynamic seat by pulling screw group；Three or four or six holes are evenly equipped with the same circumference of the stationary seat end face；When being evenly equipped with three holes on the same circumference of stationary seat end face, three holes are through hole；The stationary seat only passes through with dynamic seat Pull the connection of screw group；The drawing screw group includes the first drawing screw, the second drawing screw, the 3rd drawing screw；It is described Screw section between stationary seat and dynamic seat is arranged with the compression spring for keeping stationary seat and the position orientation relation of dynamic seat；When being evenly equipped with four holes on the same circumference of stationary seat end face, two of which be screw, two be through hole；With two screws What is coordinated has the first pushing tow screw and the second pushing tow screw that pushing tow screw group is included；There is drawing spiral shell with what two through holes coordinated The the first drawing screw and the second drawing screw that nail group is included；The stationary seat end face is in 0 °, 180 ° of arrangement pushing tow screw group institutes Comprising two pushing tow screws, in included two 90 °, 270 ° of arrangement drawing screw groups drawing screws, form two tops two and draw Annexation；The drawing screw and stationary seat contact surface are ball-and-socket contact structures；Two pushing tow screw upper end bulbs and dynamic seat Outer shroud end face forms higher pair contact；When being evenly equipped with six holes on the same circumference of stationary seat end face, wherein three be screw, three be through hole；The screw with Through hole is intervally arranged；The the first pushing tow screw for thering is pushing tow screw group to be included that coordinates with three screws, the second pushing tow screw, the Three pushing tow screws；There are the first drawing screw for pulling screw group and being included, the second drawing screw, the 3rd with what three through holes coordinated Pull screw；The stationary seat forms the annexation drawn on three tops three with dynamic seat by pushing tow screw group and drawing screw group；It is described Three screws that three pushing tow screws that pushing tow screw group is included are screwed on stationary seat, three pushing tow screw upper end bulbs and dynamic seat Outer shroud end face forms higher pair contact；Three drawing screws that the drawing screw group is included pass through three through holes on stationary seat, It is connected with three screws on dynamic seat end face；The drawing screw and stationary seat contact surface are sphere-contact structure.
- A kind of 2. prism pose adjustment mechanism according to claim 1, it is characterised in that：On the stationary seat at least provided with Three through holes for being used to be fixed on whole prism pose adjustment mechanism on the assembling base plane of optical system.
- A kind of 3. prism pose adjustment mechanism according to claim 1 or 2, it is characterised in that：The pre-loading screw group bag Include at least two pre-loading screws；The pre-loading screw is by hexagon socket cap head screw, rubber spring washer and two polytetrafluoroethylene (PTFE) Skidding forms.
- A kind of 4. prism pose adjustment mechanism according to claim 3, it is characterised in that：The end circle of the prism rotating shaft The end mill of shell of column two is put down for installation and adjustment handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510930828.1A CN105467552B (en) | 2015-12-12 | 2015-12-12 | A kind of prism pose adjustment mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510930828.1A CN105467552B (en) | 2015-12-12 | 2015-12-12 | A kind of prism pose adjustment mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105467552A CN105467552A (en) | 2016-04-06 |
| CN105467552B true CN105467552B (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510930828.1A Expired - Fee Related CN105467552B (en) | 2015-12-12 | 2015-12-12 | A kind of prism pose adjustment mechanism |
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| CN (1) | CN105467552B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110187464A (en) * | 2019-06-03 | 2019-08-30 | 北京科益虹源光电技术有限公司 | A kind of prism clamping fixture with safeguard structure of no pivoting friction |
| CN113189833B (en) * | 2021-03-30 | 2022-07-05 | 杭州行开医学影像技术有限公司 | 3D image shooting structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201222113Y (en) * | 2008-06-05 | 2009-04-15 | 天津工程师范学院 | Fixed device for contact type pyramid prism |
| CN201637918U (en) * | 2010-01-25 | 2010-11-17 | 利达光电股份有限公司 | Prism adjusting mechanism in projection system |
| CN205301683U (en) * | 2015-12-12 | 2016-06-08 | 中国科学院西安光学精密机械研究所 | Prism position appearance guiding mechanism |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7457654B2 (en) * | 2003-10-27 | 2008-11-25 | Siemens Medical Solutions Usa, Inc. | Artifact reduction for volume acquisition |
| US7974009B2 (en) * | 2007-09-19 | 2011-07-05 | Victor Company Of Japan, Limited | Image fluctuation correcting apparatus |
-
2015
- 2015-12-12 CN CN201510930828.1A patent/CN105467552B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201222113Y (en) * | 2008-06-05 | 2009-04-15 | 天津工程师范学院 | Fixed device for contact type pyramid prism |
| CN201637918U (en) * | 2010-01-25 | 2010-11-17 | 利达光电股份有限公司 | Prism adjusting mechanism in projection system |
| CN205301683U (en) * | 2015-12-12 | 2016-06-08 | 中国科学院西安光学精密机械研究所 | Prism position appearance guiding mechanism |
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| CN105467552A (en) | 2016-04-06 |
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