CN109895341A - The mode compensation method of free surface lens - Google Patents
The mode compensation method of free surface lens Download PDFInfo
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- CN109895341A CN109895341A CN201711308004.6A CN201711308004A CN109895341A CN 109895341 A CN109895341 A CN 109895341A CN 201711308004 A CN201711308004 A CN 201711308004A CN 109895341 A CN109895341 A CN 109895341A
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Abstract
The present invention provides a kind of mode compensation method of free surface lens, includes: establishing the design data comprising free form surface information in computer；Design data is modeled to obtain mold design by computer；Mold is generated according to mold design by die processing unit platform；Ejection formation is carried out to generate ejecting product using mold by ejection formation board；The surface of ejecting product is measured, by profile meter to generate ejecting product surface data；By computer fitting design data and ejecting product surface data；Accuracy value and compensation path data are generated according to design data and the fitting result of ejecting product surface data by computer；When accuracy value is higher than threshold value, by die processing unit platform according to compensation path data to mold repetition processing；When accuracy value is less than or equal to threshold value, completion compensation.The present invention can effectively keyholed back plate technique and ejecting product quality.
Description
Technical field
The present invention particularly relates to the mode compensation method of free surface lens in relation to a kind of compensation method.
Background technique
Optical mirror slip according to feature can divide into spherical surface (Spherical) eyeglass, aspherical (Aspherical) eyeglass and
Free form surface (Freeform) eyeglass may replace the lens systems of traditional multi-disc spheric glass composition using free surface lens,
And curved surface kenel can be designed according to various optical demands.The molding of optical mirror slip is to install a mould in an ejection formation board
Tool, the mode of the mold is spherical surface, aspherical or free form surface for ejection formation optical mirror slip, in the ejection formation board
After cast gate injected plastic, which can have spherical surface, aspherical or free form surface by the mold ejection formation
Optical mirror slip ejecting product.
During plastic cement ejection formation, because the shrinkage amplitude of plastic cement is influenced by temperature and pressure and has different changes
Change, such as bigger closer to the pressure of gate location, on the contrary it is smaller, cause plastic cement to have in different zones and shrinks non-uniform phenomenon
Occur, so that optical mirror slip ejecting product be allowed to be unable to satisfy required specification.Based on foregoing problems, related fields has been developed to be directed to and penetrated
The compensation technique of the mode of spheric glass and aspherical lens, such as TW I273029 case " aspherical plastic lens are formed out
And its manufacturing method of mode ", CN104440385B case " compensation method of High-precision aspheric milling manufacturing deficiency " and TW
I486247 case " production method of aspherical mirror mode ".
Only still lack the mode compensation technique for ejection formation free surface lens at present, is mainly because of free-form curved mirror
The shape thicknesses of piece differ greatly, and during ejection formation, plastic cement is probably quite uneven in the shrinkage amplitude of different zones,
More be dependent on artificial experience by try accidentally in a manner of modify mode project again finished product carry out functional test verifying, it is often necessary to repair a die, nothing
Method effectively controls the quality of technique and ejecting product.
Summary of the invention
In view of this, the main object of the present invention is to provide a kind of mode compensation method of free surface lens, to gram
It takes and manually tries the problem of can not effectively controlling technique and ejecting product caused by accidentally mode described in background technique.
The mode compensation method of free surface lens of the present invention comprising the steps of:
(a) design data comprising a free form surface information is established in computer；
(b) design data is modeled by computer to obtain a mold design；
(c) mold design is received by die processing unit platform, to carry out mold processing according to the mold design, generates a mould
Tool；
(d) ejection formation is carried out using the mold by ejection formation board, to generate the ejecting product for including free form surface；
(e) surface of the ejecting product is measured, by profile meter to generate an ejecting product surface data；
(f) the ejecting product surface data is received by computer, and is bonded the design data and the ejecting product surface data；
(g) accuracy value is generated according to the design data and the fitting result of the ejecting product surface data by computer to mend with one
Repay path data；
(h) when the accuracy value is higher than a threshold value, by the die processing unit platform according to the compensation path data to the mold
It repeats to process, and executes step (d)~(g)；
(i) when the accuracy value is less than or equal to the threshold value, completion compensation.
According to the method for the present invention, for the free form surface information that the free form surface for making ejecting product meets the design data,
The present invention measures the free form surface on the surface of the ejecting product by profile meter, by obtained ejecting product surface data and is somebody's turn to do
Design data carries out fitting comparison, therefore can obtain the otherness between the design data and ejecting product in free form surface, by the benefit
It repays path data and reflects the otherness.In this way, which the present invention reprocesses the mold according to the compensation path data, by again
The free form surface of the ejecting product of the mold institute output of processing is the free form surface information closer to the design data, reduces the design
In the otherness of free form surface between data and ejecting product.
It is compared with background technique, the present invention is to be compensated by the compensation path data to the mode of mold, the compensation
Path data is an objective data and reflects the otherness between the design data and ejecting product in free form surface, therefore the present invention is non-
Adopt artificial examination accidentally mode, the present invention can effectively keyholed back plate technique and ejecting product quality.
Detailed description of the invention
Fig. 1: computer, die processing unit platform, ejection formation board and the profile meter of implementable compensation method of the present invention
Block schematic diagram.
Fig. 2: the flow diagram of the embodiment of compensation method of the present invention.
Fig. 3: the schematic diagram of present invention design data in step (a).
Fig. 4: the schematic diagram of present invention ejecting product surface data in step (e).
Fig. 5: ejection formation schematic diagram before compensating.
Fig. 6: ejection formation schematic diagram after compensation.
Specific embodiment
Referring to FIG. 1, the embodiment of the mode compensation method of free surface lens of the present invention can be processed in computer 10, mold
Board 20, ejection formation board 30 and profile meter 40 are implemented.For example, which can be PC (PC),
The design data of an optical lens structure is established according to the operation of user, such as the design data may include the song of optical mirror slip
Face mathematical equation, 2D model map file or 3D model map file, in addition, a mold flow analysis software, the mould stream can be performed in the computer 10
It analyzes software and mold flow analysis modeling is carried out to obtain a mold design 11 according to the design data；20 basis of die processing unit platform
Processing is automatically to generate a mold for the mold design 11, and the mode of the mold is i.e. for ejection formation free form surface, such as the mould
Tool machine table 20 can establish line with the computer 10, and the mold design 11 is transmitted to the die processing unit platform for the computer 10
20 progress molds process operation automatically；The ejection formation board 30 can connecting mold, the ejection formation board 30 pour confession note
Enter plastic material, and carry out ejection formation according to the construction of mold to generate an ejecting product, which includes one freely bent
Face, construction correspond to the free form surface of mode；The finished surface or ejecting product of the profile meter 40 to measure mode
Surface simultaneously generates a surface data, such as the profile meter 40 can be surveyed for contact (probe) or contactless (optics) surface
Measure instrument, by measured multiple data points one curved surface data of composition comprising coordinate value, the curved surface data be surface data with
Reflect that the instrument of model UA3P can be used in the surface of mode or the surface of ejecting product, the profile meter 40, the surface measurement
Instrument 40 can establish line with the computer 10, receive surface data measured by the profile meter 40 as the computer 10.It needs
It is bright, it is aforementioned for usual knowledge in the technical field of the invention.
It please cooperate with reference to Fig. 2, the embodiment of compensation method of the present invention comprises the steps of:
(a) design data comprising a free form surface information is established in computer 10.In the embodiment of the present invention, user can
The free form surface information is realized by the mathematical equation of free form surface, 2D model map file or 3D model map file.Wherein, it please refers to
Fig. 3, the design data 12 may include multiple anchor points 122 other than comprising the free form surface information 121, the equal anchor points 122
It can be distributed in the periphery of the free form surface information 121, but not limited to this, and computer 10 can define the design by D coordinates value
The free form surface information 121 and anchor point 122 of data 12.
(b) design data 12 is modeled to obtain mold design 11 by computer 10.It, should in the embodiment of the present invention
Mold design 11 is comprising the machining path parameter corresponding to the free form surface information 121 and anchor point 122.Preferably, in this
Mold flow analysis separately can be carried out to the mold design 11 with a mold flow analysis software in step, mold flow analysis software carries out mold flow analysis
Set cast gate size is thick 1/2 of meat, and the dwell time is 1.3 seconds.
(c) mold design 11 is received by die processing unit platform 20, to carry out mold processing according to the mold design 11, produced
A raw mold.In the embodiment of the present invention, the mode of the mold is to have for generating the surface of free form surface and anchor point, point
Not Dui Yingyu the design data 12 free form surface information 121 and anchor point 122.In addition, also may include: (c-1) passes through surface
Measuring instrument 40 measures the surface of the mode, to generate a mode surface data for for future reference.The pattern of the mold can be one cave of a mould
Two-plate mold, the mold materials can be Royalloy, mode material can be Stavax-ESR and electroless nickel, but not with
This is limited.
(d) ejection formation is carried out using the mold by ejection formation board 30, to generate the injection for including free form surface
Product.In the embodiment of the present invention, because the mode of the mold has the surface of free form surface and anchor point, therefore the ejecting product corresponds to area
Also there are corresponding free form surface and anchor point in domain.
(e) surface of the ejecting product is measured, by profile meter 40 to generate an ejecting product surface data.The present invention is real
It applies in example, referring to FIG. 4, the ejecting product surface data 41 includes the free form surface information 411 and anchor point 412 of the ejecting product,
The free form surface information 411 and anchor point 412 of the ejecting product surface data 41 can be defined by D coordinates value.
(f) the ejecting product surface data 41 is received by computer 10, and is bonded the design data 12 and the ejecting product surface number
According to 41.In the embodiment of the present invention, which can 122 coordinate value of anchor point according to the design data 12 and the ejecting product surface
412 coordinate value of anchor point of data 41, makes the design data 12 and the ejecting product surface data 41 corresponds to each other positioning, such as leads to
Coordinate conversion regime is crossed to believe the free form surface of the free form surface information 121 of the design data 12 and the ejecting product surface data 41
Breath 411 is bonded each other, enables each data point of the free form surface information 121 of the design data 12 that can correspond to the ejecting product surface data
Each data point of 41 free form surface information 411.
(g) a compensation road is generated according to the design data 12 and the fitting result of the ejecting product surface data 41 by computer 10
Diameter data 13.In the embodiment of the present invention, which can carry out the design data 12 and the ejecting product surface using SAL3D software
The surface accuracy of data 41 compares and generates an accuracy value, and establishes the compensation path data 13 by SAL3D software, the compensation road
Diameter data 13 are the error reflected between the design data 12 and the ejecting product surface data 41, which can be
One mathematical equation, but not limited to this.In general, during (d) step ejection formation, referring to FIG. 5, because
The shrinkage amplitude of plastic cement by temperature and pressure influence have it is different variation (closer to gate location pressure it is bigger, otherwise more
It is small), cause plastic body 50 to have and shrinks non-uniform phenomenon, such as certain position excess shrinkages of plastic body 50, plastic body
50 surface forms a gap 70 between the cavity surface of mold 60 due to contraction, the compensation path of the compensation path data 13
Length corresponds to the distance between the design data 12 and 50 surface of plastic body.The plastic body 50 is to project after projecting
Product, for measuring its ejecting product surface data 41 in step (e).
(h) when the accuracy value be higher than a threshold value, represent the ejecting product as underproof ejecting product, by the die processing unit
Platform 20 repeats to process according to the compensation path data 13 to the mold, and executes step (d)~(g) or step (c-1)~(g).
In the embodiment of the present invention, which can be preset in computer 10, which can be 10 microns, which can be by electricity
Brain 10 inputs the die processing unit platform 20, and user can group loads onto the die processing unit platform 20 again by the mold, by the mould
Have machine table 20 and the mold is repeated to process according to the compensation path data 13, and executes step (d)~(g) or step (c-
1)~(g) to generate new ejecting product, and to the new ejecting product carry out surface measurement be bonded operation, until in step (g)
Judge the accuracy value less than or equal to the threshold data.
(i) when the accuracy value is less than or equal to the threshold value, representing the ejecting product is qualified ejecting product, completes to compensate.
In conclusion the present invention is repeated to add according to the compensation path data 13 by the die processing unit platform 20 to the mold
Work to adjust the surface shape of the mode, such as makes the depth of its die cavity deeper, in this way, when utilizing mode adjusted
After carrying out ejection formation, referring to FIG. 6, plastic body 50' is in ejection formation because the depth of compensation rear mold 60' die cavity is deeper
Gap 70' is still generated after blockage effect in the process, and the surface plastic body 50' can be allowed closer to the design data 12, therefore according to benefit
The ejecting product for repaying rear mold 60' ejection formation can meet desired free surface lens ejecting product required function.
Claims (8)
1. a kind of mode compensation method of free surface lens, which is characterized in that comprise the steps of:
(a) design data comprising a free form surface information is established in computer；
(b) design data is modeled by computer to obtain a mold design；
(c) mold design is received by die processing unit platform, to carry out mold processing according to the mold design, generates a mold；
(d) ejection formation is carried out using the mold by ejection formation board, to generate the ejecting product for including free form surface；
(e) surface of the ejecting product is measured, by profile meter to generate an ejecting product surface data；
(f) the ejecting product surface data is received by computer, and is bonded the design data and the ejecting product surface data；
(g) one accuracy value and a compensation road are generated according to the design data and the fitting result of the ejecting product surface data by computer
Diameter data；
(h) when the accuracy value is higher than a threshold value, by the die processing unit platform according to the compensation path data to mold repetition
Processing, and execute step (d)~(g)；
(i) when the accuracy value is less than or equal to the threshold value, completion compensation.
2. the mode compensation method of free surface lens as described in claim 1, which is characterized in that in step (a), pass through
Mathematical equation, 2D model map file or the 3D model map file of free form surface realize the free form surface information.
3. the mode compensation method of free surface lens as described in claim 1, which is characterized in that in step (a), this is set
It counts comprising multiple anchor points；
In step (e), which includes the free form surface information and anchor point of the ejecting product；
In step (f), which is made according to the anchor point of the anchor point of the design data and the ejecting product surface data
It corresponds to each other positioning with the ejecting product surface data.
4. the mode compensation method of free surface lens as described in claim 1, which is characterized in that in step (b), with one
Mold flow analysis software carries out mold flow analysis to the mold design.
5. the mode compensation method of free surface lens as claimed in claim 4, which is characterized in that in step (b), the mould
It is thick 1/2 of meat that flow point, which analyses software and carries out cast gate size set by mold flow analysis, and the dwell time is 1.3 seconds.
6. the mode compensation method of free surface lens as described in claim 1, which is characterized in that in step (c), the mould
The pattern of tool is the two-plate mold in one cave of a mould, which can be Royalloy, and mode material can be Stavax-
ESR and electroless nickel.
7. the mode compensation method of free surface lens as described in claim 1, which is characterized in that in step (g), the benefit
Repaying path data is mathematical equation.
8. the mode compensation method of free surface lens as claimed in claim 3, which is characterized in that in step (a), this is more
A anchor point is distributed in the periphery of the free form surface information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711308004.6A CN109895341A (en) | 2017-12-11 | 2017-12-11 | The mode compensation method of free surface lens |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711308004.6A CN109895341A (en) | 2017-12-11 | 2017-12-11 | The mode compensation method of free surface lens |
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| CN109895341A true CN109895341A (en) | 2019-06-18 |
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| CN201711308004.6A Pending CN109895341A (en) | 2017-12-11 | 2017-12-11 | The mode compensation method of free surface lens |
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Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004299934A (en) * | 2003-03-28 | 2004-10-28 | Fuji Photo Optical Co Ltd | Method for designing mold to form optical element |
| CN1177551C (en) * | 1999-10-08 | 2004-12-01 | 拉裴德设计技术股份有限公司 | Die manufacturing |
| JP2005199567A (en) * | 2004-01-15 | 2005-07-28 | Olympus Corp | Mold correction system, its device, mold correction method, recording medium, and program |
| CN1891425A (en) * | 2005-07-07 | 2007-01-10 | 柯尼卡美能达精密光学株式会社 | Die for molding free-form surface optical element, free-form surface optical element molded by using such die, and free-form surface mirror |
| JP2007313852A (en) * | 2006-05-29 | 2007-12-06 | Mitsubishi Electric Engineering Co Ltd | Die correction system |
| CN102744424A (en) * | 2012-07-30 | 2012-10-24 | 中国人民解放军国防科学技术大学 | Single-point diamond compensation cutting processing method for thin plate optical parts |
| CN103411545A (en) * | 2013-08-13 | 2013-11-27 | 天津大学 | Multi-axis system error modeling and measuring device and method based on optical free-form surface |
| CN104615809A (en) * | 2015-01-20 | 2015-05-13 | 华侨大学 | Spring-back compensation method working out factor reversely |
| CN104626495A (en) * | 2014-12-12 | 2015-05-20 | 中国航空工业集团公司北京航空材料研究院 | Injection molding production method of transparent product with thick-walled curved surface structure |
| CN104924633A (en) * | 2015-04-30 | 2015-09-23 | 西北工业大学 | Method for designing die molded surface for forming groove-shaped part |
| CN105643395A (en) * | 2016-01-04 | 2016-06-08 | 中国科学院长春光学精密机械与物理研究所 | Grinding forming method for optical free-form surface |
| CN106294921A (en) * | 2016-01-27 | 2017-01-04 | 浙江机电职业技术学院 | A kind of finishing method of complex free curved surface |
| CN106406237A (en) * | 2016-10-28 | 2017-02-15 | 中国科学院长春光学精密机械与物理研究所 | Method for processing metal part with free-form hook surface |
| CN106584031A (en) * | 2016-12-20 | 2017-04-26 | 柳州通为机械有限公司 | Manufacturing method of automobile box body part injection mold based on Moldflow |
-
2017
- 2017-12-11 CN CN201711308004.6A patent/CN109895341A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1177551C (en) * | 1999-10-08 | 2004-12-01 | 拉裴德设计技术股份有限公司 | Die manufacturing |
| JP2004299934A (en) * | 2003-03-28 | 2004-10-28 | Fuji Photo Optical Co Ltd | Method for designing mold to form optical element |
| JP2005199567A (en) * | 2004-01-15 | 2005-07-28 | Olympus Corp | Mold correction system, its device, mold correction method, recording medium, and program |
| CN1891425A (en) * | 2005-07-07 | 2007-01-10 | 柯尼卡美能达精密光学株式会社 | Die for molding free-form surface optical element, free-form surface optical element molded by using such die, and free-form surface mirror |
| JP2007313852A (en) * | 2006-05-29 | 2007-12-06 | Mitsubishi Electric Engineering Co Ltd | Die correction system |
| CN102744424A (en) * | 2012-07-30 | 2012-10-24 | 中国人民解放军国防科学技术大学 | Single-point diamond compensation cutting processing method for thin plate optical parts |
| CN103411545A (en) * | 2013-08-13 | 2013-11-27 | 天津大学 | Multi-axis system error modeling and measuring device and method based on optical free-form surface |
| CN104626495A (en) * | 2014-12-12 | 2015-05-20 | 中国航空工业集团公司北京航空材料研究院 | Injection molding production method of transparent product with thick-walled curved surface structure |
| CN104615809A (en) * | 2015-01-20 | 2015-05-13 | 华侨大学 | Spring-back compensation method working out factor reversely |
| CN104924633A (en) * | 2015-04-30 | 2015-09-23 | 西北工业大学 | Method for designing die molded surface for forming groove-shaped part |
| CN105643395A (en) * | 2016-01-04 | 2016-06-08 | 中国科学院长春光学精密机械与物理研究所 | Grinding forming method for optical free-form surface |
| CN106294921A (en) * | 2016-01-27 | 2017-01-04 | 浙江机电职业技术学院 | A kind of finishing method of complex free curved surface |
| CN106406237A (en) * | 2016-10-28 | 2017-02-15 | 中国科学院长春光学精密机械与物理研究所 | Method for processing metal part with free-form hook surface |
| CN106584031A (en) * | 2016-12-20 | 2017-04-26 | 柳州通为机械有限公司 | Manufacturing method of automobile box body part injection mold based on Moldflow |
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