CN108254812A - A kind of Fresnel Lenses and its processing unit (plant) - Google Patents
A kind of Fresnel Lenses and its processing unit (plant) Download PDFInfo
- Publication number
- CN108254812A CN108254812A CN201711327538.3A CN201711327538A CN108254812A CN 108254812 A CN108254812 A CN 108254812A CN 201711327538 A CN201711327538 A CN 201711327538A CN 108254812 A CN108254812 A CN 108254812A
- Authority
- CN
- China
- Prior art keywords
- fresnel lenses
- plant
- processing unit
- cutter
- bearing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
Abstract
The present invention discloses a kind of Fresnel Lenses and its processing unit (plant).The present apparatus includes setting on workbench and workbench, and there are two opposite columns, respectively left column and right column；Crossbeam on the left column and right column is installed, beam lifting device and slide are provided in the balance beam；Cutter holder device is provided on the slide；AB composite shafts, cutter are installed on the cutter holder device.It is archimedes spiral groove that invention, which changes traditional Fresnel Lenses Template circular slot, utilize AB composite shaft technologies, the gradual change of archimedes spiral groove angle is realized by setting the parameters such as B axle pivot angle, the rotation of A axis, in the case where not influencing Fresnel Lenses focus point, become interrupted step and be processed as Continuous maching, processing efficiency is improved, reduces processing cost, reduces rejection rate.
Description
Technical field
The present invention relates to large-scale vertical micro-structure Ultra-precision Turning equipment, specifically a kind of Fresnel Lenses and its add
Tooling is put.
Background technology
Major diameter Fresnel Lenses is applied to large-scale optical engineering, space solar cell photovoltaic system, laser back projection etc.
In field, there is important military affairs and commercial application value, but its difficulty of processing is high, only the developed countries such as the U.S., Japan slap
The key technology and process equipment of large-scale Fresnel Lenses processing are held.
Traditional Fresnel Lenses is concentric ring-shaped, process such lens template rotary tool axis need to do thousands of times it is micro
Mobile and positioning, interrupted cut process easily lead to the breakage of cutter, and processing efficiency is low, long processing time, the tooth top of lens and
Easily there is overlap and hangnail in bottom of the tooth, and the above problem is especially prominent in the process of large scale Fresnel lens.
Invention content
The present invention proposes a kind of Fresnel Lenses and its processing unit (plant), will be traditional using advanced AB axis complex technique
Donut processing is changed to archimedes spiral groove processing, and lens working diameter dimension is up to φ 3300mm.
To achieve the above object, a kind of Fresnel Lenses of the present invention, including Fresnel lens template（8）, the phenanthrene
Alunite ear lens template（8）Lens surface one side for smooth surface, another side is carved with archimedes spiral groove.
The processing unit (plant) of a kind of Fresnel Lenses, including workbench（9）, the workbench（9）There are two upper settings
Opposite column, respectively left column（1）And right column（4）；The left column（1）And right column（4）On crossbeam is installed, institute
It states and beam lifting device is provided in balance beam（2）And slide（3）；The slide（3）On be provided with cutter holder device（5）；It is described
Cutter holder device（5）On AB composite shafts are installed（6）, cutter（7）；The AB composite shafts（6）Including bearing（10）And electric machine support
（15）, the bearing（10）On be fixed with endless screw support（12）And servo motor（13）, the endless screw support（12）On be equipped with
Worm screw（11）, the worm screw（11）With worm sector（14）Form worm gear structure, the electric machine support（15）Hypomere set
It is equipped with cutter head（16）.
The AB composite shafts（6）Upper A axis drives control lens groove profile operating angle δ by servo motor；The AB composite shafts
（6）Upper B axle controls cutter（7）Angle, θ.
The bearing（10）On offer annular groove.
The worm sector（14）On be provided with bearing（17）, the bearing（17）In stent（10）Annular groove in roll
It is dynamic.
The stent（10）Pass through matched stud（18）, nut（19）It is fixed with endless screw support（12）.
A kind of Fresnel Lenses utilizes the preparation method of its processing unit (plant), planar, cutter head（16）Track be
Archimedes spiral, the height H in the direction of every bit is determined by the groove depth of the lens unit corresponding to the point on helical.
Present apparatus principle：The processing of Archimedes spiral formula Fresnel lens template, with adding for concentric circular pattern lens
Work is similar, and since the pitch L between each annulus is very small, the processing of the working face and non-working surface of each annulus is by knife
The main cutting edge of tool or end cutting edge simultaneous manufacturing, therefore, the track of point of a knife is actually a special space A Ji meter
Moral helical flute.As shown in attached drawing 7, attached drawing 8, planar, the track of point of a knife is archimedes spiral groove, every bit on helical
The height H in direction is determined that the angle, θ of cutter is controlled by axis by the groove depth of the lens unit corresponding to the point, lens groove profile work
Make angle δ and the control of A axis is driven by servo motor.The machining locus of lens template working face is a continuous space curve, is avoided
Under concentric circular pattern, since cutter heart track is discontinuous, caused by the multiple of each axis start, shut down, greatly improve simultaneously
Processing efficiency.The technological achievement will provide technical support for multi-shaft precise series of products, and achievement will be widely used in precision
Machine Manufacture lays the foundation for integrated innovation, will solve the industries such as national defence, aerospace, military project, astronomy, optic communication, nuclear technology
To the urgent need of ultraprecise high efficiency manufacture technology and equipment, provide safeguard for relevant industries technological progress.
A kind of Fresnel Lenses of the present invention and its processing unit (plant), advantage are：It is luxuriant and rich with fragrance that the present apparatus changes tradition
Nie Er lens templates annular groove is archimedes spiral groove, and using AB composite shaft technologies, i.e., by setting B axle pivot angle, A axis rotates
Etc. parameters realize archimedes spiral groove angle gradual change, in the case where not influencing Fresnel Lenses focus point, become interrupted rank
Jump is processed as Continuous maching, improves processing efficiency, reduces processing cost, reduces rejection rate.
Description of the drawings
Fig. 1 is ultraprecise Fine Feed vertical lathe structure diagram of the present invention；
Fig. 2 illustrates for AB composite shafts and diamond point of a knife；
Fig. 3 is AB composite shafts I amplification signals；
Fig. 4 illustrates for AB composite shafts and diamond point of a knife；
Fig. 5 illustrates for AB composite shafts and diamond point of a knife；
Fig. 6 illustrates for AB composite shafts and diamond point of a knife；
Fig. 7 is archimedes spiral groove schematic diagram；
Fig. 8 is archimedes spiral groove sectional view；
In figure：1- left columns, 2- beam liftings device, 3- slides, 4- right columns, 5- cutter holder devices, 6-AB composite shafts, 7- knives
Tool, 8- Fresnel lenses template, 9- workbench, 10- bearings, 11- worm screws, 12- endless screw supports, 13- servo motors, 14- are fan-shaped
Worm gear, 15- electric machine supports, 16- cutter heads, 17- bearings, 18- studs, 19- nuts.
Specific embodiment
As shown in figures 1-8, a kind of Fresnel Lenses of the present invention, including Fresnel lens template 8, the Fresnel is saturating
The lens surface one side of mirror template 8 is smooth surface, and another side is carved with archimedes spiral groove.
A kind of processing unit (plant) of Fresnel Lenses, including workbench 9, there are two opposite for setting on the workbench 9
Column, respectively left column 1 and right column 4；Crossbeam on the left column 1 and right column 4 is installed, is set in the balance beam
There are beam lifting device 2 and slide 3；Cutter holder device 5 is provided on the slide 3；AB is installed on the cutter holder device 5 to answer
Sympodium 6, cutter 7；The AB composite shafts 6 include bearing 10 and electric machine support 15, and endless screw support 12 is fixed on the bearing 10
With servo motor 13, worm screw 11 is installed on the endless screw support 12, the worm screw 11 forms worm and gear with worm sector 14
Structure, the hypomere of the electric machine support 15 are provided with cutter head 16；A axis is driven by servo motor and controlled in the AB composite shafts 6
Lens groove profile operating angle δ；The angle, θ of B axle control cutter 7 in the AB composite shafts 6；Annular groove is offered on the bearing 10；
Bearing 17 is provided on the worm sector 14, the bearing 17 rolls in the annular groove of stent 10；The stent 10 passes through
Matched stud 18, nut 19 are fixed with endless screw support 12.
A kind of Fresnel Lenses utilizes the preparation method of its processing unit (plant), planar, the track of cutter head 16 be Ah
Base Mead helical, the height H in the direction of every bit is determined by the groove depth of the lens unit corresponding to the point on helical.
When in use, A axis is rotated by servo motor 13 with dynamic cutter head 7, and B axle realizes knife by worm screw 11 and worm sector 14
First 7 swing in the range of ± θ.Pass through the rotating speed of reasonable set B axle swing angle θ, A axis servo motor 13, turn of workbench 9
Speed, slide 3 X-direction movement, cutter holder device 5 Z-direction movement, it can be achieved that in Fig. 7-8 archimedes spiral groove plus
Work.It is elaborated below by four aspects.
1st, the realization of B axle swing angle ± θ：As shown in figures 2-6, the nut of connection worm sector 14 and stent 10 is unclamped
19, it can be manually rotated worm screw 11 and worm sector 14 driven to swing certain angle θ；Wherein, worm screw 11 is fixed over the mount 10, and A-A is cutd open
Middle (center) bearing 17 is fixed on worm sector, and bearing 17 rolls in the annular groove of stent 10.Spiral shell is tightened after setting B axle pivot angle θ
19, θ of mother is the non-working surfaces angles such as A-A amplifies in wire casing in Fig. 7-8 P2P3, P4P5, P6P7.
2nd, A rotating speeds and the relationship at δ angles：If Fig. 3 is shown in I enlarged drawings, projection ∠ A0C of the diamond point of a knife in β faces is δ
Angle, A axis servo motor 13 drive point of a knife rotation, i.e. point of a knife is rotated along axis AO, and δ angles are in a certain range in the projection in β faces
Consecutive variations, δ angles are in functional relation with A rotating speeds；δ is the works such as A-A amplifies in wire casing in Fig. 7-8 P1P2, P3P4, P5P6
Make face angle degree.
3rd, the realization of pitch L：It can control by the rotating speed and slide 3 that control workbench 9 in crossbeam 2 along X to movement speed
Pitch L.
4th, on helical the height (Fig. 7 A-A amplification in H1, H2, H3) of every bit Z-direction by cutter holder device 5 in slide upper edge Z-direction
Mobile control.
Claims (7)
1. a kind of Fresnel Lenses, including Fresnel lens template（8）, it is characterised in that：The Fresnel lens template（8）'s
Lens surface one side is smooth surface, and another side is carved with archimedes spiral groove.
2. a kind of processing unit (plant) of Fresnel Lenses as described in claim 1, including workbench（9）, it is characterised in that：The work
Make platform（9）There are two opposite columns, respectively left column for upper setting（1）And right column（4）；The left column（1）It is stood with the right side
Column（4）On crossbeam is installed, beam lifting device is provided in the balance beam（2）And slide（3）；The slide（3）On set
It is equipped with cutter holder device（5）；The cutter holder device（5）On AB composite shafts are installed（6）, cutter（7）；The AB composite shafts（6）Packet
Include bearing（10）And electric machine support（15）, the bearing（10）On be fixed with endless screw support（12）And servo motor（13）, it is described
Endless screw support（12）On worm screw is installed（11）, the worm screw（11）With worm sector（14）Worm gear structure is formed, it is described
Electric machine support（15）Hypomere be provided with cutter head（16）.
3. a kind of processing unit (plant) of Fresnel Lenses as claimed in claim 2, it is characterised in that：The AB composite shafts（6）Upper A axis
Control lens groove profile operating angle δ is driven by servo motor；The AB composite shafts（6）Upper B axle controls cutter（7）Angle, θ.
4. a kind of processing unit (plant) of Fresnel Lenses as claimed in claim 3, it is characterised in that：The bearing（10）On offer
Annular groove.
5. a kind of processing unit (plant) of Fresnel Lenses as claimed in claim 4, it is characterised in that：The worm sector（14）On set
It is equipped with bearing（17）, the bearing（17）In stent（10）Annular groove in roll.
6. a kind of processing unit (plant) of Fresnel Lenses as claimed in claim 5, it is characterised in that：The stent（10）Pass through matching
The stud of conjunction（18）, nut（19）It is fixed with endless screw support（12）.
7. a kind of Fresnel Lenses utilizes the preparation method of its processing unit (plant) as described in claim any one of 2-5, feature exists
In：Planar, cutter head（16）Track be Archimedes spiral, the height H in the direction of every bit is right by point institute on helical
The groove depth for the lens unit answered is determined.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327538.3A CN108254812A (en) | 2017-12-13 | 2017-12-13 | A kind of Fresnel Lenses and its processing unit (plant) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711327538.3A CN108254812A (en) | 2017-12-13 | 2017-12-13 | A kind of Fresnel Lenses and its processing unit (plant) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108254812A true CN108254812A (en) | 2018-07-06 |
Family
ID=62722644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711327538.3A Pending CN108254812A (en) | 2017-12-13 | 2017-12-13 | A kind of Fresnel Lenses and its processing unit (plant) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108254812A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4456344A (en) * | 1981-07-23 | 1984-06-26 | A.T.B. S.P.A. | Fresnel lens, and a method and mold for manufacturing it |
| JPH10142405A (en) * | 1996-11-11 | 1998-05-29 | Toshiba Mach Co Ltd | Fresnel lens and medal mold for fresnel lens molding |
| CN1899735A (en) * | 2006-07-21 | 2007-01-24 | 清华大学 | Diamond turning method and device for Archimedean spiral type Fresnel lens |
| CN103149609A (en) * | 2013-03-13 | 2013-06-12 | 毛建华 | Processing method for ultra-large-caliber Fresnel lens |
| CN103913785A (en) * | 2012-12-28 | 2014-07-09 | 李景刚 | Combined-type Fresnel lens |
-
2017
- 2017-12-13 CN CN201711327538.3A patent/CN108254812A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4456344A (en) * | 1981-07-23 | 1984-06-26 | A.T.B. S.P.A. | Fresnel lens, and a method and mold for manufacturing it |
| JPH10142405A (en) * | 1996-11-11 | 1998-05-29 | Toshiba Mach Co Ltd | Fresnel lens and medal mold for fresnel lens molding |
| CN1899735A (en) * | 2006-07-21 | 2007-01-24 | 清华大学 | Diamond turning method and device for Archimedean spiral type Fresnel lens |
| CN103913785A (en) * | 2012-12-28 | 2014-07-09 | 李景刚 | Combined-type Fresnel lens |
| CN103149609A (en) * | 2013-03-13 | 2013-06-12 | 毛建华 | Processing method for ultra-large-caliber Fresnel lens |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180706 |
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| RJ01 | Rejection of invention patent application after publication |