CN102445724A - 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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- CN102445724A CN102445724A CN2011102685122A CN201110268512A CN102445724A CN 102445724 A CN102445724 A CN 102445724A CN 2011102685122 A CN2011102685122 A CN 2011102685122A CN 201110268512 A CN201110268512 A CN 201110268512A CN 102445724 A CN102445724 A CN 102445724A
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- grating
- revolving cup
- planar flexible
- pitch changing
- annulus
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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, the grid pitch changing grating angular displacement sensor is as the accurate angle feedback element of light biography flight control system, the development work of also having carried out its principle prototype.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 the planar flexible grid pitch changing grating is accurate; The most frequently used method is between planar flexible grating and annulus revolving cup two bonding piece, to use the bulging mold; Impose the radial pressure of appropriateness; Elastic force so that the rigidity of guaranteeing to overcome flexible grating produces fits tightly its and the satisfactory annulus revolving cup of circularity internal circular surfaces, makes the circularity of cylinder grid pitch changing grating inside surface be able to assurance.And bulging mold commonly used to be rigid mechanical expand tire; After using this bulging mold; Not only radial pressure can't be controlled; And the circularity and the right alignment of the cylindrical grating internal circular surfaces after the moulding are relatively poor, and the grid line embossing pattern of grating surface produces local damage, influence the result of use of cylinder grid pitch changing grating.
Summary of the invention
The objective of the invention is to propose the bonding circularity of the flexible grating assembling of a kind of ability control plane for inside surface behind the cylindrical grating; Cylindrical grating surface grid line embossing pattern is protected, made bonding firm method for precisely forming between planar flexible grating and the annulus revolving cup internal circular surfaces.
The technical scheme that the present invention takes does, a kind of planar flexible grid pitch changing grating method for precisely forming, and step is following:
1. make the elasticity punch: make the elasticity punch that matches with it according to annulus revolving cup internal diameter size;
2. join glue: the DG-4 two-component adhesive is configuration in 2: 1 by A: B, and stirs;
3. clean: with the acetone annulus revolving cup and the planar flexible grating back side;
4. gluing: in annulus revolving cup inwall and grating back side uniform gluing;
5. bonding: that two sheet gration symmetries are pasted on annulus revolving cup inwall;
6. dress mould: the elasticity punch with scribbling release agent is close to grating, and firmly extruding makes it to compress, and in the elasticity punch, inserts mandrel in the circle;
7. baking and curing: the revolving cup assembly is put into drying box, take out the revolving cup assembly behind the insulation 1h, be cooled to room temperature, take out elasticity punch and aluminium mandrel;
8. check: range estimation and cylindricity instrument are checked annulus revolving cup inwall and grid pitch changing grating applying quality respectively.
Further, above-mentioned baking and curing temperature is 55 ℃～65 ℃.
Advantage that the present invention has and beneficial effect: the present invention is the flexible grating of a kind of control plane circularity that is shaped to inside surface behind the cylindrical grating, bonding firm elasticity bulging process between planar flexible grating and the annulus revolving cup inwall is protected, made to cylindrical grating surface grid line embossing pattern.The elasticity punch that the present invention uses can radially produce even strong bulging pressure at circumference, has not only overcome the rigidity when the planar flexible grating is crooked, and its elasticity can be avoided the rigid damage to the grating surface embossing pattern again; Its elasticity conformal characteristic makes the adhesive surface fit closely.
Description of drawings
Fig. 1 is a planar flexible grid pitch changing grating molding structure synoptic 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 synoptic diagram of assembling of the present invention, 1: mandrel, 2: elasticity punch, 3: planar flexible grating, 4: the annulus revolving cup;
Fig. 3 is the inventive method schematic flow sheet;
Fig. 4 is a revolving cup assembly cut-open view, 1: mandrel, 2: elasticity punch, 3: planar flexible grid pitch changing grating, 4: the annulus revolving cup;
Fig. 5 is a revolving cup assembly axonometric drawing, 1: mandrel, 2: elasticity punch, 3: planar flexible grid pitch changing grating, 4: the annulus revolving cup.
Embodiment
Below in conjunction with Figure of description the present invention is elaborated, the application site of the present invention in the grid pitch changing grating angular displacement is as shown in Figure 1, and the 3 symmetry assemblings of planar flexible grid pitch changing grating are adhered to annulus revolving cup 4 internal circular surfaces, are shaped to cylindrical grating 5.
The method for precisely forming flow process of planar flexible grid pitch changing grating 3 is as shown in Figure 3, and the concrete operations step is following:
1. make the elasticity punch: make the elasticity punch 2 that matches with it according to annulus revolving cup internal diameter size;
2. join glue: the DG-4 two-component adhesive is configuration in 2: 1 by A: B, and stirs;
3. clean: with the acetone 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: that flexible grid pitch changing grating 3 symmetries of two plate planes are pasted on annulus revolving cup 4 inwalls;
6. dress mould: the elasticity punch 2 with scribbling release agent is close to grating, and firmly extruding makes it to compress, and elasticity punch 2 in insertion mandrel 1 in the circle;
7. baking and curing: the revolving cup assembly is put into drying box, and temperature is 55 ℃ to 65 ℃, takes out the revolving cup assembly behind the insulation 1h, is cooled to room temperature, takes out elasticity punch 2 and mandrel 1;
8. check: range estimation and cylindricity instrument are checked annulus revolving cup 4 inwalls and planar flexible grid pitch changing grating 3 applying quality respectively.
As can beappreciated from fig. 2, the frock that the elasticity bulging process uses has 2 kinds of parts, is respectively mandrel 1 and elasticity punch 2.Elasticity 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.In round anchor ring in the mandrel 1 insertion elasticity punch 2; Increase along with insertion depth; The interior anchor ring of 1 pair of elasticity punch 2 of mandrel applies suitable radial pressure; Elasticity punch 2 cylindrical circumference radially produce by dynamic deformation, and outside diameter increases, and oppress the flexible grid pitch changing grating 3 planar flexible grid pitch changing grating 3 that symmetry is placed, the back side scribbles the DG-4 two-component adhesive of two plate planes; Make planar flexible grid pitch changing grating 3 produce the inner periphery 4 that distortion is close to rigid revolving cup 4, can obtain required cylinder grid pitch changing grating 5.
Embodiment
1. make the elasticity punch: forming in the encapsulating die, pour GN-521 silicon gel into by annulus revolving cup 4 and mandrel 1, carry out deaeration, sulfuration after, can produce and be matched with elasticity punch 2 round in the annulus revolving cup 4;
2. join glue: the DG-4 two-component adhesive is configuration in 2: 1 by A: B, about about altogether 15g, stirs;
3. clean: with the acetone annulus revolving cup 4 and planar flexible grid pitch changing grating 3 back sides.Level up the bottom when cleaning planar flexible grid pitch changing grating 3, is sure not folding, decreases grating;
4. gluing: annulus revolving cup 4 inwalls and planar flexible grid pitch changing grating 3 back side uniform gluing, gluing is an amount of, uses toothpick and glue scraping plate drawout respectively;
5. bonding: that flexible grid pitch changing grating 3 symmetries of two plate planes are positioned in the annulus revolving cup 4; Gluing is partly fitted; Adjust the position of grating in cup with cotton swab; Grating base and positioning step lean on real, and gluing partially overlaps in grating and the annulus revolving cup, under state of nature, makes grating be close to annulus revolving cup inwall as far as possible;
6. dress mould: wipe glue unnecessary in the annulus revolving cup 4, be close to planar flexible grid pitch changing grating 3 with the elasticity punch 2 that scribbles release agent, planar flexible grid pitch changing grating 3 will all be covered to lean on by elasticity punch 2 and press, and firmly pushes and make it to compress.Wipe clean the surplus glue in elasticity punch edge in the revolving cup assembly, in elasticity punch 2, insert mandrel 1 in the circle.
7. baking and curing:
A) the revolving cup assembly is put into 60 ℃ electric drying oven with forced convection, insulation 1h;
B) taking out the revolving cup assembly, cool off under the room temperature;
C) take out elasticity punch and aluminium mandrel, wipe clean grating surface with acetone.
8. check:
A) visual inspection annulus revolving cup 4 inwalls and planar flexible grid pitch changing grating 3 are fitted firmly, and be seamless, planar flexible grid pitch changing grating 3 surfaces and edge cleaning, nothing left glue;
B) smooth with 5 surfacings of cylindricity instrument inspection cylinder grid pitch changing grating.
This elasticity bulging process has utilized characteristics such as isotropy, isothermal, the elastic deformation recovery of organic silicon rubber material when pressurized and thermal expansion is rapid, and elastic deformation is even, Heat stability is good.It is uncontrollable that this elasticity bulging process has solved the bloated tire pressure of conventional machinery, by the problem of swelling pressure spare surface accuracy difference.The enough radially even strong bulging pressure of circumference can be provided.The planar flexible grating is shaped to behind the cylindrical grating not only that the circularity of inside surface can realize quantitative control, and bonding firmly, the grating surface embossing pattern is not destroyed.The elasticity punch is by the cast molding in annulus revolving cup internal round chamber of liquid organosilicon rubber, and cylindrical circularity is guaranteed.The elasticity punch is made simple, and is easy to use.
Claims (2)
1. planar flexible grid pitch changing grating method for precisely forming, step is following:
(1) makes the elasticity punch
Make the elasticity punch that matches with it according to annulus revolving cup internal diameter size;
(2) join glue
The DG-4 two-component adhesive is configuration in 2: 1 by A: B, and stirs;
(3) clean
With the acetone annulus revolving cup and the planar flexible grating back side;
(4) gluing
In annulus revolving cup inwall and grating back side uniform gluing;
(5) bonding
Two sheet gration symmetries are pasted on annulus revolving cup inwall;
(6) dress mould
Elasticity punch with scribbling release agent is close to grating, and firmly extruding makes it to compress, and in the elasticity punch, inserts mandrel in the circle;
(7) baking and curing
The revolving cup assembly is put into drying box, take out the revolving cup assembly behind the insulation 1h, be cooled to room temperature, take out elasticity punch and aluminium mandrel;
(8) check
Range estimation and cylindricity instrument are checked annulus revolving cup inwall and grid pitch changing grating applying quality respectively.
2. planar flexible grid pitch changing grating method for precisely forming according to claim 1 is characterized in that: the baking and curing temperature is 55 ℃～65 ℃.
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 |
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| 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 true CN102445724A (en) | 2012-05-09 |
| CN102445724B CN102445724B (en) | 2014-10-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 (6)
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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 |
| JP2008221747A (en) * | 2007-03-15 | 2008-09-25 | Ricoh Co Ltd | Method for processing molding die for diffraction optical element |
| 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 |
-
2011
- 2011-09-08 CN CN201110268512.2A patent/CN102445724B/en active Active
Patent Citations (6)
| 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 |
| JP2008221747A (en) * | 2007-03-15 | 2008-09-25 | Ricoh Co Ltd | Method for processing molding die for diffraction optical element |
| 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102445724B (en) | 2014-10-22 |
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