CN102445724B - Precision molding method for cylindrical varied line-space grating - Google Patents
Precision molding method for cylindrical varied line-space grating Download PDFInfo
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- CN102445724B CN102445724B CN201110268512.2A CN201110268512A CN102445724B CN 102445724 B CN102445724 B CN 102445724B CN 201110268512 A CN201110268512 A CN 201110268512A CN 102445724 B CN102445724 B CN 102445724B
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- grating
- revolving cup
- pitch changing
- grid pitch
- planar flexible
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Abstract
The invention relates to a precision molding method for a cylindrical varied line-space grating. According to the scheme adopted by the invention, the method comprises the following steps of: manufacturing an elastic male die; preparing glue; cleaning; coating the glue; adhering; performing die filling; drying; curing; and the like. Through the steps, a grating line relief pattern on the surface of the grating is not damaged after the planar flexible varied line-space grating is assembled and adhered to the surface on the inner circumference of a circular revolving cup, and the roundness of the inner surface of the molded cylindrical varied line-space grating can be quantitatively controlled. By using the method, the problem of assembly and adhesion for nondestructively adhering the planar flexible varied line-space grating to the inner circumference of the annular revolving cup is solved, the processing quality of forming the planar flexible varied line-space grating into the cylindrical varied line-space grating by precision molding is guaranteed, and the qualification rate of the assembly and adhesion step is improved.
Description
Technical field
The present invention relates to a kind of planar flexible grid pitch changing grating method for precisely forming.
Background technology
Begin one's study along with light passes flight control system, grid pitch changing grating angular displacement sensor passes the accurate angle feedback element of flight control system, the development work of also having carried out its principle prototype as light.Cylinder grid pitch changing grating is the core parts of grid pitch changing grating angular displacement sensor, curvedly be adhered to annulus revolving cup internal circular surfaces and obtain accurate planar flexible grid pitch changing grating, the most frequently used method is to use bulging mold between planar flexible grid pitch changing grating and annulus revolving cup two bonding piece, impose appropriate radial pressure, to guarantee the elastic force of the rigidity generation that overcomes flexible grating, itself and the satisfactory annulus revolving cup of circularity internal circular surfaces are fitted tightly, the circularity of cylinder grid pitch changing grating inside surface is ensured.And conventional bulging mold is the swollen tire of rigid mechanical, use after this bulging mold, not only radial pressure cannot be controlled, and circularity and the right alignment of cylindrical grating internal circular surfaces after moulding are poor, the grid line embossing pattern of grating surface produces local damage, affects the result of use of cylinder grid pitch changing grating.
Summary of the invention
The object of the invention is to propose the bonding circularity for inside surface after cylindrical grating of the flexible grid pitch changing grating assembling of a kind of energy control plane; cylindrical grating surface grid line embossing pattern is protected, made bonding firmly method for precisely forming between planar flexible grid pitch changing grating and annulus revolving cup internal circular surfaces.
The technical scheme that the present invention takes is, a kind of planar flexible grid pitch changing grating method for precisely forming, and step is as follows:
1. make elastic punch: make according to annulus revolving cup internal diameter size the elastic punch matching with it;
2. join glue: DG-4 two-component adhesive, is 2:1 configuration by A:B, and stirs;
3. clean: with acetone cleaning annulus revolving cup and the planar flexible grid pitch changing grating back side;
4. gluing: in annulus revolving cup inwall and planar flexible grid pitch changing grating back side uniform gluing;
5. bonding: flexible two plate planes grid pitch changing grating symmetry is pasted on to annulus revolving cup inwall;
6. dress mould: use the elastic punch that scribbles release agent to be close to planar flexible grid pitch changing grating, and firmly extruding makes it to compress, and insert aluminium mandrel in elastic punch inner circle;
7. baking and curing: revolving cup assembly is put into drying box, take out revolving cup assembly after insulation 1h, be cooled to room temperature, take out elastic punch and aluminium mandrel;
8. inspection: range estimation and check annulus revolving cup inwall and grid pitch changing grating laminating quality with cylindricity instrument respectively.
Further, above-mentioned baking and curing temperature is 55 DEG C～65 DEG C.
The advantage that the present invention has and beneficial effect: the present invention is the flexible grid pitch changing grating of a kind of control plane circularity that is shaped to inside surface after cylindrical grating, bonding firmly elasticity bulging process between planar flexible grid pitch changing grating and annulus revolving cup inwall is protected, made to cylindrical grating surface grid line embossing pattern.The elastic punch that the present invention uses can radially produce even strong bulging pressure at circumference, has not only overcome rigidity when planar flexible grid pitch changing grating is bending, and its elasticity can be avoided again the rigid damage to grating surface embossing pattern; Its elasticity conformal characteristic, makes the laminating of adhesive surface closely.
Brief description of the drawings
Fig. 1 is planar flexible grid pitch changing grating molding structure schematic diagram, wherein, and 3: planar flexible grid pitch changing grating, 4: annulus revolving cup, 5: cylinder grid pitch changing grating;
Fig. 2 is the bonding formation schematic diagram of assembling of the present invention, 1: mandrel, 2: elastic punch, 3: planar flexible grid pitch changing grating, 4: annulus revolving cup;
Fig. 3 is the inventive method schematic flow sheet;
Fig. 4 is revolving cup assembly cut-open view, 1: mandrel, 2: elastic punch, 3: planar flexible grid pitch changing grating, 4: annulus revolving cup;
Fig. 5 is revolving cup assembly axonometric drawing, 1: mandrel, 2: elastic punch, 3: planar flexible grid pitch changing grating, 4: annulus revolving cup.
Embodiment
Below in conjunction with Figure of description, the present invention is elaborated, as shown in Figure 1, the symmetrical assembling of planar flexible grid pitch changing grating 3 is adhered to annulus revolving cup 4 internal circular surfaces to the application site of the present invention in grid pitch changing grating angular displacement, is shaped to cylindrical grating 5.
As shown in Figure 3, concrete operation step is as follows for the method for precisely forming flow process of planar flexible grid pitch changing grating 3:
1. make elastic punch: make according to annulus revolving cup internal diameter size the elastic punch 2 matching with it;
2. join glue: DG-4 two-component adhesive, is 2:1 configuration by A:B, and stirs;
3. clean: with acetone cleaning annulus revolving cup 4 and planar flexible grid pitch changing grating 3 back sides;
4. gluing: in annulus revolving cup 4 inwalls and planar flexible grid pitch changing grating 3 back side uniform gluing;
5. bonding: flexible two plate planes grid pitch changing grating 3 symmetries are pasted on to annulus revolving cup 4 inwalls;
6. dress mould: use the elastic punch 2 that scribbles release agent to be close to grating, and firmly extruding makes it to compress, and insert mandrel 1 in elastic punch 2 inner circles;
7. baking and curing: revolving cup assembly is put into drying box, and temperature is 55 DEG C to 65 DEG C, takes out revolving cup assembly after insulation 1h, is cooled to room temperature, takes out elastic punch 2 and mandrel 1;
8. inspection: range estimation and cylindricity instrument inspection annulus revolving cup 4 inwalls and planar flexible grid pitch changing grating 3 quality of fitting respectively.
As can be seen from Figure 2, the frock that elasticity bulging process uses has 2 kinds of parts, is respectively mandrel 1 and elastic punch 2.Elastic punch 2 is major parts of the present invention, is by the cast molding in annulus revolving cup 4 internal round chamber of liquid organosilicon rubber; Planar flexible grid pitch changing grating 3 uses in pairs.Mandrel 1 is inserted in the inner circle anchor ring of elastic punch 2, along with the increase of insertion depth, mandrel 1 applies suitable radial pressure to the interior anchor ring of elastic punch 2, elastic punch 2 cylindrical circumference radially produce Passive deformation, outside diameter increases, oppress the flexible grid pitch changing grating 3 planar flexible grid pitch changing grating 3 that symmetry is placed, the back side scribbles DG-4 two-component adhesive of two plate planes, planar flexible grid pitch changing grating 3 is produced and be out of shape the inner periphery 4 that is close to rigidity annulus revolving cup 4, can obtain required cylinder grid pitch changing grating 5.
Embodiment
1. make elastic punch: being formed in encapsulating die by annulus revolving cup 4 and mandrel 1, pour GN-521 silicon gel into, carry out, after deaeration, sulfuration, can producing the elastic punch 2 that is matched with annulus revolving cup 4 inner circles;
2. join glue: DG-4 two-component adhesive is 2:1 configuration by A:B, and altogether about 15g left and right, stirs;
3. clean: with acetone cleaning annulus revolving cup 4 and planar flexible grid pitch changing grating 3 back sides.While cleaning planar flexible grid pitch changing grating 3, level up bottom, is sure not folding, damages grating;
4. gluing: annulus revolving cup 4 inwalls and planar flexible grid pitch changing grating 3 back side uniform gluing, gluing is appropriate, uses respectively toothpick and glue scraping plate drawout;
5. bonding: flexible two plate planes grid pitch changing grating 3 symmetries are positioned in annulus revolving cup 4, the laminating of gluing part, adjust the position of grating in cup with cotton swab, grating base and positioning step are by real, in grating and annulus revolving cup, gluing partially overlaps, and makes grating be close to annulus revolving cup inwall under state of nature as far as possible;
6. dress mould: wipe glue unnecessary in annulus revolving cup 4, use the elastic punch 2 that scribbles release agent to be close to planar flexible grid pitch changing grating 3, planar flexible grid pitch changing grating 3 will all be covered pressured by elastic punch 2, and firmly extruding makes it to compress.Wipe clean the remaining glue in revolving cup assembly Elastic punch edge, in elastic punch 2 inner circles, insert mandrel 1.
7. baking and curing:
A) revolving cup assembly is put into the electric drying oven with forced convection of 60 DEG C, insulation 1h;
B) taking out revolving cup assembly, cooling under room temperature;
C) take out elastic punch and aluminium mandrel, wipe clean grating surface with acetone.
8. inspection:
A) visual inspection annulus revolving cup 4 inwalls and 3 laminatings of planar flexible grid pitch changing grating are firmly, seamless, planar flexible grid pitch changing grating 3 surfaces and edge cleaning, nothing left glue;
B) check that with cylindricity instrument cylinder grid pitch changing grating 5 surfacings are smooth.
This elasticity bulging technology utilization the isotropy of organic silicon rubber material in the time of pressurized and thermal expansion, isothermal, elastic deformation recover the feature such as rapid, elastic deformation is even, Heat stability is good.It is uncontrollable that this elasticity bulging process has solved the swollen tire pressure of conventional machinery, by the poor problem of swelling pressure part surface accuracy.The enough radially even strong bulging pressure of circumference can be provided.Planar flexible grating is shaped to after cylindrical grating the not only circularity of inside surface can realize quantitative control, and bonding firmly, grating surface embossing pattern is not destroyed.Elastic punch is by the cast molding in annulus revolving cup internal round chamber of liquid organosilicon rubber, and roundness of external circle is guaranteed.Elastic punch is made simple, easy to use.
Claims (2)
1. a planar flexible grid pitch changing grating method for precisely forming, step is as follows:
(1) make elastic punch
Make according to annulus revolving cup internal diameter size the elastic punch matching with it;
(2) join glue
DG-4 two-component adhesive, is 2:1 configuration by A:B, and stirs;
(3) clean
With acetone cleaning annulus revolving cup and the planar flexible grid pitch changing grating back side;
(4) gluing
In annulus revolving cup inwall and planar flexible grid pitch changing grating back side uniform gluing;
(5) bonding
Flexible two plate planes grid pitch changing grating symmetry is pasted on to annulus revolving cup inwall;
(6) dress mould
Be close to planar flexible grid pitch changing grating with the elastic punch that scribbles release agent, and firmly extruding makes it to compress, and in elastic punch inner circle, insert aluminium mandrel;
(7) baking and curing
Revolving cup assembly is put into drying box, after insulation 1h, take out revolving cup assembly, be cooled to room temperature, take out elastic punch and aluminium mandrel;
(8) inspection
Range estimation and check annulus revolving cup inwall and grid pitch changing grating laminating quality with cylindricity instrument respectively.
2. planar flexible grid pitch changing grating method for precisely forming according to claim 1, is characterized in that: baking and curing temperature is 55 DEG C～65 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110268512.2A CN102445724B (en) | 2011-09-08 | 2011-09-08 | Precision molding method for cylindrical varied line-space grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110268512.2A CN102445724B (en) | 2011-09-08 | 2011-09-08 | Precision molding method for cylindrical varied line-space grating |
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| Publication Number | Publication Date |
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| CN102445724A CN102445724A (en) | 2012-05-09 |
| CN102445724B true CN102445724B (en) | 2014-10-22 |
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| CN201110268512.2A Active CN102445724B (en) | 2011-09-08 | 2011-09-08 | Precision molding method for cylindrical varied line-space grating |
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| CN106882267A (en) * | 2017-01-18 | 2017-06-23 | 扬子江汽车集团有限公司 | A kind of lightweight automobile gantry frame fixing means |
| CN107843948A (en) * | 2017-06-26 | 2018-03-27 | 扬州瑞威光电科技有限公司 | A kind of Bragg diffraction bigrating structures design methods of Rowland circle structure |
Citations (5)
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|---|---|---|---|---|
| US5234326A (en) * | 1990-04-13 | 1993-08-10 | Pirelli Coordinamento Pneumatici S.P.A. | Tire mold having a plurality of blocks defining a matrix with venting gaps between the blocks |
| CN101398315A (en) * | 2008-09-19 | 2009-04-01 | 中国科学技术大学 | Method for producing cylinder grid pitch changing grating |
| CN101912925A (en) * | 2010-08-06 | 2010-12-15 | 西安交通大学 | Machining mould for bottom arch foil of elastic foil gas bearing |
| CN102162869A (en) * | 2011-05-17 | 2011-08-24 | 河南三阳光电有限公司 | Process for preparing lenticular grating |
| CN102173246A (en) * | 2011-02-18 | 2011-09-07 | 中国印刷科学技术研究所 | Lenticular printing method for lenticule on demand through ink jet |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5035962B2 (en) * | 2007-03-15 | 2012-09-26 | 株式会社リコー | Processing method of diffractive optical element mold |
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- 2011-09-08 CN CN201110268512.2A patent/CN102445724B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5234326A (en) * | 1990-04-13 | 1993-08-10 | Pirelli Coordinamento Pneumatici S.P.A. | Tire mold having a plurality of blocks defining a matrix with venting gaps between the blocks |
| CN101398315A (en) * | 2008-09-19 | 2009-04-01 | 中国科学技术大学 | Method for producing cylinder grid pitch changing grating |
| CN101912925A (en) * | 2010-08-06 | 2010-12-15 | 西安交通大学 | Machining mould for bottom arch foil of elastic foil gas bearing |
| CN102173246A (en) * | 2011-02-18 | 2011-09-07 | 中国印刷科学技术研究所 | Lenticular printing method for lenticule on demand through ink jet |
| CN102162869A (en) * | 2011-05-17 | 2011-08-24 | 河南三阳光电有限公司 | Process for preparing lenticular grating |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2008-221747A 2008.09.25 |
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| CN102445724A (en) | 2012-05-09 |
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