CN101428482B - Method for manufacturing accurate special-shaped thin wall blank holder - Google Patents
Method for manufacturing accurate special-shaped thin wall blank holder Download PDFInfo
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- CN101428482B CN101428482B CN2008102390410A CN200810239041A CN101428482B CN 101428482 B CN101428482 B CN 101428482B CN 2008102390410 A CN2008102390410 A CN 2008102390410A CN 200810239041 A CN200810239041 A CN 200810239041A CN 101428482 B CN101428482 B CN 101428482B
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- blank holder
- thin wall
- film
- die cavity
- washing powder
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Abstract
A method for manufacturing an odd-shaped precision thin wall blank holder not only solves the difficult problem of manufacturing an odd-shaped precision thin wall blank holder, but also ensures that the cost is lower and the operation is convenient. The technical scheme of the invention for solving the technical problems is that a smooth film body is inserted in a die cavity of the blank holder of the thin wall bore plate, stuff solidified and diffluent mixtures are stuffed; the mixture has the property of micro-expansion, and has the effects of increasing the strength of the thin wall, and causes the thin wall core plate blank holder to be smoothly processed. The invention has the advantages of the stuffing method is simple and convenient; the diffluent rate is high; the filler is easy to be taken out; and the cost is low, and solves the difficult problem that the mixture causes the workpiece to deform due to generated heat emission and solidification during the process of mixing.
Description
Technical field
The present invention relates to a kind of preparation method of accurate special-shaped thin wall blank holder, belong to the special-shaped accurate thin wall blank holder manufacture technology field that the housing mould that is used to extend uses.
Background technology
The housing mould of extending is a kind of deep drawn that is used for metal substrate or other thin material of battery of mobile phone, and such Stretching die processes thin-walled superelevation type product (hand phone battery case etc.) by extending continuously.Except some high-accuracy punch-dies, the manufacturing of punch blank holder is very difficult a kind of peculiar part to the accuracy of manufacture height of such mould (5um is following).
Its essential characteristic of punch blank holder (Fig. 1): wall is thin, and superelevation is hardened and high accuracy.Because this part has above essential characteristic, in Precision Machining, the normal electric machining process that adopts of past, owing to inevitably produce metamorphic layer in the discharge processing, influence the surface smoothness of part, and adopt grinding process because thermal deformation problem element precision can't guarantee, and crackle or cracking often appear on the thin-walled, directly cause scrapping of part.Therefore, we adopt various processing methods and experiment repeatedly, make a kind of new process solve the difficult problem in the manufacturing.
Summary of the invention
In order to overcome the deficiency of prior art structure, the invention provides a kind of preparation method of accurate special-shaped thin wall blank holder, solve special-shaped accurate thin wall blank holder and make a difficult problem.And cost is very low, is easy to implement.
The technical solution adopted for the present invention to solve the technical problems is: have in the die cavity interpolation of thin-walled punch blank holder and go into the smooth film body, the step that diffluent mixture is easily solidified in filling; Mixture has the microdilatancy characteristic, plays the effect that increases thin-walled intensity, makes the processing of thin-walled punch blank holder to finish smoothly.
The invention has the advantages that: fill method is easy, and setting rate is fast, and filler easily takes out, and is with low cost.And solved the heat release that mixture produced solidified a difficult problem that makes workpiece deformation when mixing.
Description of drawings
Fig. 1 is a punch blank holder schematic cross-section of the present invention;
Fig. 2 is a punch blank holder side cross-sectional schematic diagram of the present invention;
Fig. 3 is a punch blank holder schematic top plan view of the present invention.
The present invention is further described below in conjunction with drawings and Examples.
The specific embodiment
Embodiment 1: a kind of preparation method of accurate special-shaped thin wall blank holder, go into the smooth film body in the die cavity interpolation of thin-walled punch blank holder, and the step that diffluent mixture is easily solidified in filling contains following steps:
Packing material: " 502 glue ", washing powder, film (about thickness 0.1mm)
The material of film is plastics;
502 glue are alpha-cyanoacrylate fat type;
Washing powder is common washing powder.
Step is as follows:
1. film is cut into the blank holder height x (rectangle of blank holder internal diameter girth+10-20mm).
2. the good film of sanction is rolled into the shape of blank holder, is inserted in the interior type of blank holder, film is wanted fully contact with surface of the work.
3. the workpiece blank holder that will fill in film is placed on the plane fills: pour washing powder (washing powder is paved as far as possible) earlier into, pour " 502 " again into.Treat to recharge down one deck after " 502 " are absorbed by washing powder fully.Every filling 3-5mm washing powder is once " 502 " just.Successively fill by that analogy, till filling up.
Avoid when filling bottom as far as possible " 502 " adhere to the film upper strata around, otherwise that washing powder will be filled is discontented, causes the die cavity boring, can cause like this filling unreal and influence processing.Note protection eyes and hand in the operating process.
4. filling finishes, and approximately just can carry out the profile of blank holder has been processed in 10-20 minute
5. after machining, only need knock the mixture part gently, just filler can be taken out in the die cavity of blank holder.
Embodiment 2:
A kind of preparation method of accurate special-shaped thin wall blank holder, contain following steps:
1. select packing material for use: 502 glue, washing powder, the film of thickness 0.05-0.2mm; 502 glue: characteristic: powerful combination of moment;
2. film 1 is cut into rectangle, rectangular height is x mm; X is for increasing 10-20mm on the perimeter dimension of blank holder 3 internal diameters;
3. the good film 1 of sanction is rolled into the shape of blank holder 3, is inserted in blank holder 3 die cavities, film 1 will fully contact with blank holder 3 die cavity inner surfaces;
4. the blank holder 3 that will fill in film 1 is placed on the plane fills: pave earlier and pour washing powder into, pour 502 glue again into; Treat to recharge down one deck after 502 glue are absorbed by washing powder fully; Every filling 3-5mm washing powder is just gone into one time 502 glue; With this till fill up;
5. filling finishes, and solidifies after 10-20 minute, carries out the grinding of blank holder 3;
6. after grinding is finished, knock filler 2 parts in blank holder 3 die cavities gently, filler 2 is taken out.
Claims (1)
1. the preparation method of an accurate special-shaped thin wall blank holder is characterized in that having in the die cavity of thin-walled punch blank holder and inserts film, the step of filling mixture, and step is as follows:
(1) selects packing material for use: 502 glue, washing powder, the film of thickness 0.05-0.2mm;
(2) film is cut into rectangle, rectangular height is xmm, and it is the height of blank holder; X is for increasing 10-20mm on the perimeter dimension of blank holder internal diameter;
(3) film that sanction is got well is rolled into the shape of blank holder, is inserted in the blank holder die cavity, and film will fully contact with blank holder die cavity inner surface;
(4) the blank holder die cavity that will fill in film is placed on the plane and fills: pave earlier and pour washing powder into, pour 502 glue again into; Treat to recharge down one deck after 502 glue are absorbed by washing powder fully; Every filling 3-5mm washing powder is just gone into one time 502 glue; With this till filling up;
(5) filling finishes, and solidifies after 10-20 minute, carries out the grinding of blank holder;
(6) after grinding is finished, knock the filler part in the blank holder die cavity gently, filler is taken out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102390410A CN101428482B (en) | 2008-12-05 | 2008-12-05 | Method for manufacturing accurate special-shaped thin wall blank holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102390410A CN101428482B (en) | 2008-12-05 | 2008-12-05 | Method for manufacturing accurate special-shaped thin wall blank holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101428482A CN101428482A (en) | 2009-05-13 |
| CN101428482B true CN101428482B (en) | 2010-09-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102390410A Active CN101428482B (en) | 2008-12-05 | 2008-12-05 | Method for manufacturing accurate special-shaped thin wall blank holder |
Country Status (1)
| Country | Link |
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| CN (1) | CN101428482B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1555936A (en) * | 2004-01-08 | 2004-12-22 | 上海交通大学 | Variable blank holder pressure controllable stretching shape composite blank holder |
| WO2006057196A1 (en) * | 2004-11-24 | 2006-06-01 | Honda Motor Co., Ltd. | Draw forming method and device |
| CN101259500A (en) * | 2007-03-06 | 2008-09-10 | 长春市吉韩模具有限公司 | Scaly-type pressure-adjustable covering part blank holder device |
-
2008
- 2008-12-05 CN CN2008102390410A patent/CN101428482B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1555936A (en) * | 2004-01-08 | 2004-12-22 | 上海交通大学 | Variable blank holder pressure controllable stretching shape composite blank holder |
| WO2006057196A1 (en) * | 2004-11-24 | 2006-06-01 | Honda Motor Co., Ltd. | Draw forming method and device |
| CN101259500A (en) * | 2007-03-06 | 2008-09-10 | 长春市吉韩模具有限公司 | Scaly-type pressure-adjustable covering part blank holder device |
Non-Patent Citations (1)
| Title |
|---|
| 龙玉明.卡箍式压边圈拉深模.《机械工人.热加工》.1991,(第3期),45. * |
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| Publication number | Publication date |
|---|---|
| CN101428482A (en) | 2009-05-13 |
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Effective date of registration: 20160503 Address after: 315105 No. 988 Jin Yuan Road, Yinzhou District investment center, Zhejiang, Ningbo Patentee after: Ningbo Kangqiang Electronics Co., Ltd. Address before: 100094, No. 2, building 7, Feng Yin Middle Road, Yongfeng base, Haidian District, Beijing Patentee before: Beijing KDPR Tool Technology Co., Ltd. |
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Effective date of registration: 20190122 Address after: 315100 Jinyuan Road 988, Panhuo Street, Yinzhou District, Ningbo City, Zhejiang Province Patentee after: Ningbo Kangdiprui Mould Technology Co., Ltd. Address before: 315105 Jinyuan Road 988, Investment and Entrepreneurship Center, Yinzhou District, Ningbo City, Zhejiang Province Patentee before: Ningbo Kangqiang Electronics Co., Ltd. |