CN101172295A - Special die having movable force plug for the hydraulic forming of outer housing - Google Patents
Special die having movable force plug for the hydraulic forming of outer housing Download PDFInfo
- Publication number
- CN101172295A CN101172295A CNA2006101341371A CN200610134137A CN101172295A CN 101172295 A CN101172295 A CN 101172295A CN A2006101341371 A CNA2006101341371 A CN A2006101341371A CN 200610134137 A CN200610134137 A CN 200610134137A CN 101172295 A CN101172295 A CN 101172295A
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- Prior art keywords
- movable force
- force plug
- punch
- forming
- die
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- 239000007787 solid Substances 0.000 claims description 24
- 238000004519 manufacturing process Methods 0.000 claims description 14
- 229910000861 Mg alloy Inorganic materials 0.000 abstract description 16
- 239000000463 material Substances 0.000 abstract description 13
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 7
- 229910045601 alloy Inorganic materials 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 230000000903 blocking effect Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000009740 moulding (composite fabrication) Methods 0.000 description 17
- 230000000694 effects Effects 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
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- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Forging (AREA)
Abstract
The invention relates to the hydraulic forming technology of an alloy plate, in particular to a magnesium alloy digital camera casing with a movable male die and a similar product hydraulic forming special-purpose die assembly. The technology is mainly used for the heating, the hydraulic pressure, the drawing and the forming of the magnesium alloy sheet material. The die assembly is provided with a hydraulic pressure room, a concave die, a clamping ring, a drawing male die and a heating element. The drawing male die adopts a blocking type composite structure, and comprises a fixed male die and a movable male die moving along a slip way up and down. The movable element in the combined drawing male die improves the deformation sequence and the stressed state of a forming part, to lead the limit of the sheet material to being formed and the rate of finished products to be improved. The invention has the advantages that the availability of material is high, the surface quality of a manufactured product is good, the rigidity is high, the shape and the dimension precision are high, the invention can form a complicated plate part with a digital camera casing and other shapes, in particular to the plate part required to be heated and formed when forming a magnesium alloy plate part; the service life of the die assembly is long, the replacement is simple, and the process and the installation are simple.
Description
Technical field
The present invention relates to sheet alloy hydroforming technology, be specially a kind of magnesium alloy digital camera and similar products hydraulic forming of outer housing particular manufacturing craft, be mainly used in the warm hydro-drawing of magnesium alloy plate and be shaped with movable force plug.
Background technology
Magnesium metal and alloy thereof are the lightest structural metallic materials of using in engineering so far, with light weight, good rigidly, metallic luster is good, electromagnetic wave shielding is good and easy to be recycled be the magnesium alloy of characteristics, become the preferred material of industries such as Hyundai Motor, electronics, communication.Sheet material drawing and forming processing mode has significant advantage aspect raising parts quality, productivity ratio, the saving material, and can process the thin-walled parts that satisfies the electronic product requirement.For common metal and alloy thereof, drawing and forming has been mature technique very, but for magnesium alloy, the history of pull and stretch is also shorter.Mainly be because the close-packed hexagonal crystal structure of magnesium metal, cause the Plastic Forming at room temperature of most magnesium alloys very poor, elevated temperature, can improve its forming property effectively, usually need in 250-400 ℃ temperature range, shape, this will bring the drawback of mold system relative complex, the cost of product is also relatively more expensive simultaneously, and when heat time heating time is long, cause the inner crystal grain of sheet material thick easily, like this can the serious plastic deformation ability that reduces sheet material, this moment, blank was very crisp, during pull and stretch very easily in the place's drawing crack of drift fillet.
For typical housing of digital camera, its profile has box part and semi-cylindrical feature concurrently, bottom and seamed edge radius of corner are less, especially the transitional region local deformation from the square box to the cylinder is violent, adopt conventional deep-drawing technique to need two passage drawing and formings, need annealing between passage, and because of the cumulative effect of multiple operation processing, part quality is poor.Sheet material hydro-drawing forming technique, because its friction keeps effect and fluid lubrication effect, can effectively improve the molding condition of plate, and formation of parts has good dimensional accuracy, and the conventional process for stamping and forming that can be shaped is difficult to the complicated plate accessory of once-forming.
Summary of the invention
The object of the present invention is to provide a kind of magnesium alloy digital camera and similar products hydraulic forming of outer housing particular manufacturing craft with movable force plug, solve the problem that local gross distortion causes part to be scrapped in the magnesium alloy housing of digital camera drawing and forming, it can reduce production costs, and improves the quality and the production efficiency of product.
Technical scheme of the present invention is:
A kind of hydraulic forming of outer housing particular manufacturing craft with movable force plug has hydraulic pressure chamber, die, blank holder, pull and stretch punch, and the pull and stretch punch of this mould adopts sectional type combination pull and stretch punch, comprise solid punch, can be along the upper and lower mobile movable force plug of slideway.
Described solid punch can be connected with movable force plug by connector, is set with spring on the connector, and spring places between solid punch and the movable force plug, and solid punch working end and movable force plug working end join and be combined into the shell product shape.
Described slideway can be the wedge shape slideway.
Described connector can be connecting bolt.
Can be provided with limited block between described movable force plug and the solid punch.
Described shell product can be housing of digital camera, and solid punch working end shape is corresponding with the semi-cylindrical of housing of digital camera, and its sidewall is provided with the wedge shape slideway; Movable force plug working end shape is corresponding with the square box face of housing of digital camera, which is provided with wedge-shaped slot, and wedge shape slideway and wedge-shaped slot are slidingly matched.
The invention has the advantages that:
(1) stock utilization height, the sheet material forming limit improves, and products surface quality is good, and rigidity is strong, shape and size precision height, the complex-shaped parts such as housing of digital camera that can be shaped, the magnesium alloy plate that is particularly suited for being shaped etc. needs to heat the plate that is shaped.
(2) apparatus of the present invention are simple, and production cost is low, improve Mg alloy formed performance.
(3) the present invention adopts sectional type combination pull and stretch punch on mould structure, make die change simple, improve die life, and the moving element that makes up the pull and stretch punch has simultaneously improved the shaping order and the stress of drip molding, improve forming limit and yield rate, die life is long, replacing is simple.
(4) housing of digital camera material of the present invention is a magnesium alloy, also comprises the sheet material that the heating of needs such as aluminium alloy is shaped.
(5) part of formed thereby of the present invention comprises housing of digital camera, also comprises other shell plates of analogous shape structure.
Description of drawings
Fig. 1 is a die structure dwg of the present invention.
Fig. 2 is the section of structure of hydraulic pressure chamber.
Fig. 3 is the section of structure of die.
Fig. 4 is the section of structure of solid punch.
Fig. 5 is the section of structure of movable force plug.
Fig. 6 is the vertical view of Fig. 5.
Among the figure: 1, hydraulic pressure chamber; 2, bolt; 3, die; 4, punch retainer; 5, blank holder; 6, solid punch; 7, connecting bolt; 8, spring; 9, limited block; 10, movable force plug; 11, blank; 12, heating element heater; 13, upper bolster; 14, wedge-shaped slot; 15, hydraulic cavities; 16, bottoming hole; 17, wedge shape slideway.
The specific embodiment
As shown in Figure 1, magnesium alloy housing of digital camera hydroforming particular manufacturing craft with movable force plug comprises hydraulic pressure chamber 1, bolt 2, die 3, punch retainer 4, blank holder 5, solid punch 6, connecting bolt 7, spring 8, limited block 9, movable force plug 10, blank 11, heating element heater 12, upper bolster 13 etc., hydraulic pressure chamber 1 is connected with die 3 by bolt 2, by solid punch 6, connecting bolt 7, spring 8, limited block 9, movable force plug 10 is formed sectional type combination pull and stretch punch, solid punch 6 is fixed on the upper bolster 13 by fixed head 4, movable force plug 10 is by connecting bolt 7 and be set in connecting bolt 7 upper springs 8 and be connected with solid punch 6, spring 8 places between solid punch 6 and the movable force plug 10, movable force plug 10 by the wedge-shaped slot 14 on it along on the wedge shape slideway 17 on the solid punch sidewall, move down, by being installed on movable force plug 10 upper limit position blocks 9 its positions of control, connecting bolt 7 can slide up and down along the hole on the solid punch 6.
As shown in Figure 2, hydraulic pressure chamber 1 is a column structure, has hydraulic cavities 15 in the middle of it.For different materials, the hydraulic medium difference, for the magnesium alloy hydroforming in this example, the hydraulic medium of use is a silicone oil.
As shown in Figure 3, die 3 is a cirque structure, has the bottoming hole 16 of placing heating element heater 12 on its lateral wall.
As shown in Figure 4, solid punch 6 lower ends (working end) shape is corresponding with the semi-cylindrical of housing of digital camera, which is provided with wedge shape slideway 17; Shown in Fig. 5-6, movable force plug 10 lower ends (working end) shape is corresponding with the square box face of housing of digital camera, has wedge-shaped slot 14 on it; Solid punch 6 working ends and movable force plug 10 working ends join and are combined into the housing of digital camera shape.
The invention provides a kind of magnesium alloy housing of digital camera hydroforming method, concrete warm forming step is as follows:
1) heating blank holder and die
Blank holder and die are heated to 180 ℃～200 ℃;
2) blank heating
Blank is put into mould, insulation 2～5min;
3) punch is preheated to 80～100 ℃;
4) hydro-drawing is shaped, and forming speed is 0.5～2mm/s, and fluid pressure is 5～10MPa.
Be shaped the starting stage, the lower surface minimum point that spring does not have movable force plug 10 and solid punch 6 under the compressive state keeps equal, combination pull and stretch punch moves downward under the hydraulic cylinder effect of hydraulic press, speed is controlled at 0.5～2mm/s, after blank deformation arrives to a certain degree, the descending while hydraulic pressure of combination pull and stretch punch begins to load, the movable force plug 10 that promotes in the combination pull and stretch punch moves upward along the wedge shape slideway, semi-cylindrical and square box face are shaped in succession, after hydro-drawing reaches the predetermined deformation amount, rise combination pull and stretch punch, spring 8 resets, and puts blank holder 5 and continues the next part of heating shaping.
Claims (6)
1. hydraulic forming of outer housing particular manufacturing craft with movable force plug, have hydraulic pressure chamber, die, blank holder, pull and stretch punch, it is characterized in that: the pull and stretch punch of this mould adopts sectional type combination pull and stretch punch, comprise solid punch (6), can be along the upper and lower mobile movable force plug of slideway (10).
2. according to the described hydraulic forming of outer housing particular manufacturing craft of claim 1, it is characterized in that: described solid punch (6) is connected with movable force plug (10) by connector, be set with spring (8) on the connector, spring (8) places between solid punch (6) and the movable force plug (10), and solid punch (6) working end and movable force plug (10) working end join and be combined into the shell product shape.
3. according to the described hydraulic forming of outer housing particular manufacturing craft of claim 1, it is characterized in that: described slideway is the wedge shape slideway.
4. according to the described hydraulic forming of outer housing particular manufacturing craft of claim 1, it is characterized in that: described connector is a connecting bolt.
5. according to the described hydraulic forming of outer housing particular manufacturing craft of claim 1, it is characterized in that: be provided with limited block (9) between described movable force plug (10) and the solid punch (6).
6. according to the described hydraulic forming of outer housing particular manufacturing craft of claim 1, it is characterized in that: described shell product is a housing of digital camera, and solid punch (6) working end shape is corresponding with the semi-cylindrical of housing of digital camera, and its sidewall is provided with wedge shape slideway (17); Movable force plug (10) working end shape is corresponding with the square box face of housing of digital camera, which is provided with wedge-shaped slot (14), and wedge shape slideway (17) is slidingly matched with wedge-shaped slot (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101341371A CN101172295A (en) | 2006-11-03 | 2006-11-03 | Special die having movable force plug for the hydraulic forming of outer housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101341371A CN101172295A (en) | 2006-11-03 | 2006-11-03 | Special die having movable force plug for the hydraulic forming of outer housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101172295A true CN101172295A (en) | 2008-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101341371A Pending CN101172295A (en) | 2006-11-03 | 2006-11-03 | Special die having movable force plug for the hydraulic forming of outer housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101172295A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728712A (en) * | 2011-04-07 | 2012-10-17 | 沈阳航空航天大学 | Temperature punching progressive die of magnesium alloy shell piece |
| CN107175297A (en) * | 2017-07-18 | 2017-09-19 | 苏州春秋电子科技股份有限公司 | The hot shaping method of the steep radian of magnesium lithium alloy notebook computer casing |
| CN107583999A (en) * | 2017-10-18 | 2018-01-16 | 山东新活新材料科技有限公司 | A kind of production method and battery aluminum shell of new-energy automobile battery aluminum shell |
| CN112936884A (en) * | 2021-01-29 | 2021-06-11 | 重庆嘉涌电子有限公司 | Pressing tool for machining VR (virtual reality) glasses frame |
| CN114603029A (en) * | 2022-03-03 | 2022-06-10 | 北京机科国创轻量化科学研究院有限公司 | High-performance hybrid laminate heat-solid integrated forming process |
-
2006
- 2006-11-03 CN CNA2006101341371A patent/CN101172295A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728712A (en) * | 2011-04-07 | 2012-10-17 | 沈阳航空航天大学 | Temperature punching progressive die of magnesium alloy shell piece |
| CN107175297A (en) * | 2017-07-18 | 2017-09-19 | 苏州春秋电子科技股份有限公司 | The hot shaping method of the steep radian of magnesium lithium alloy notebook computer casing |
| CN107583999A (en) * | 2017-10-18 | 2018-01-16 | 山东新活新材料科技有限公司 | A kind of production method and battery aluminum shell of new-energy automobile battery aluminum shell |
| CN112936884A (en) * | 2021-01-29 | 2021-06-11 | 重庆嘉涌电子有限公司 | Pressing tool for machining VR (virtual reality) glasses frame |
| CN112936884B (en) * | 2021-01-29 | 2022-08-23 | 重庆嘉涌电子有限公司 | Pressing tool for machining VR (virtual reality) glasses frame |
| CN114603029A (en) * | 2022-03-03 | 2022-06-10 | 北京机科国创轻量化科学研究院有限公司 | High-performance hybrid laminate heat-solid integrated forming process |
| CN114603029B (en) * | 2022-03-03 | 2023-01-13 | 北京机科国创轻量化科学研究院有限公司 | High-performance hybrid laminate heat-solid integrated forming process |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |