CN202447570U - Forging forming die for complex thin-shell piece with local structure - Google Patents
Forging forming die for complex thin-shell piece with local structure Download PDFInfo
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- CN202447570U CN202447570U CN2011205017867U CN201120501786U CN202447570U CN 202447570 U CN202447570 U CN 202447570U CN 2011205017867 U CN2011205017867 U CN 2011205017867U CN 201120501786 U CN201120501786 U CN 201120501786U CN 202447570 U CN202447570 U CN 202447570U
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- die
- shell piece
- punch
- thin shell
- core rod
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- 238000005242 forging Methods 0.000 title abstract description 20
- 238000009497 press forging Methods 0.000 claims description 38
- 230000002787 reinforcement Effects 0.000 claims description 24
- 229910052751 metal Inorganic materials 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract description 10
- 238000011031 large-scale manufacturing process Methods 0.000 abstract description 4
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 238000010924 continuous production Methods 0.000 abstract 1
- 238000009740 moulding (composite fabrication) Methods 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 238000000465 moulding Methods 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- -1 Because low Chemical compound 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 229910000861 Mg alloy Inorganic materials 0.000 description 2
- 229910001234 light alloy Inorganic materials 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
- 210000003027 ear inner Anatomy 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
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Abstract
The utility model relates to the field of forming dies, in particular to a forging forming die for a complex thin-shell piece with a local structure. The forging forming die solves the problem of formation of the complex thin-shell piece with the local structure such as a screw post, a reinforcing rib, a buckle or a hinged flange. A male die of the forging forming die is fixed on a male die shim plate through a male die fixing plate; the male die shim plate, the male die and the male die fixing plate are integrally fixed on an upper template; a female die core is supported through a female die shim block, and the female die core and the female die shim block are placed in a female die inner sleeve; a female die consisting of the female die core, the female die inner sleeve and the female die shim block is fixed in a female die outer sleeve; the female die and the female die outer sleeve are placed on a female die shim plate and integrally fixed on a lower template; and an ejection rod is placed in a lower template sunken hole. Through the forging forming die, the forging forming pressure is reduced, the flowability of a metal is improved, continuous ejection and automatic return of a female die model are realized at the same time, the formed piece is conveniently taken out after forging forming, and continuous and large-scale production is easy to realize.
Description
Technical field
The utility model relates to the shaping dies field of complex thin-wall component, refers to a kind of press forging and forming mould with the complicated thin shell piece of partial structurtes (like screw column, reinforcement, buckle or hinged flange etc.) especially.
Background technology
Require increasingly high along with automobile and 3C Product are light-weighted; The complex thin-wall shell in the application of automobile and 3C Product parts more and more widely; Light materials such as magnesium, aluminium and titanium particularly; Because low, the light weight of density make this type of light-alloy complex thin-wall shell in the parts lightweight, have advantageous advantage, so its manufacturing approach also receives the concern of industry day by day.The secondary forming research of light-alloy sheet material plastic workings such as current magnesium mainly concentrates on warm punching press and hydroforming; These forming technologies can't make bigger variation takes place on the sheet thickness; Formed product is restricted in shape, then can't be shaped for the shell product of partial structurtes such as the double-screw bolt with inner projection, reinforcement.The complex-shaped part of this type though the employing casting forming can be shaped, surface quality of continuous castings is poor, yield rate is low, and thickness can not be too thin.As a kind of new sheet material forming technology, the press forging and forming technology can shaping form than complex parts, and have yield rate height, surface quality is good, speed of production is fast advantage.So, adopting hot impact forging technology to make the complex thin-wall outer casing member is efficient ways.At present, relevant impact forging mould design patent is arranged, but have also that press forging and forming power is big, part ejects difficulty continuously and problem such as die life is low about magnesium alloy notebook computer shell class complex thin-wall component.
The utility model content
The utility model main purpose provides a kind of press forging and forming particular manufacturing craft with complex thin-wall outer casing member of partial structurtes; Solution has the complex thin-wall spare shaping problem of partial structurtes such as screw column, reinforcement, buckle or hinged flange; Designed empty knife structure and slowed down the big pressure that impact forging produces, the design of core rod and ejecting mechanism has solved part and has ejected difficult problem continuously.
The technical scheme of the utility model is:
A kind of complicated thin shell piece press forging and forming mould that has partial structurtes; This press forging and forming mould is provided with: cover, die overcoat, die cushion block, die backing plate, lower bolster, knock-pin in cope match-plate pattern, convex mould pad, punch, punch retainer, die core rod, the die; Wherein: punch is fixed on the convex mould pad through punch retainer, and convex mould pad, punch, punch retainer overall fixed are on cope match-plate pattern; The die core rod supports through the die cushion block; And during die core rod and die cushion block are placed on and overlap in the die; The die that cover, die cushion block mutual group become in die core rod, the die is fixed in the die overcoat; Die and die overcoat are positioned on the die backing plate, and overall fixed is on lower bolster, and knock-pin is positioned on the lower bolster counterbore.
The described complicated thin shell piece press forging and forming mould that has partial structurtes, the upper end of knock-pin is corresponding with the center of die cushion block bottom, and punch is corresponding with the die core rod, and blank is arranged between punch and the die.
The described complicated thin shell piece press forging and forming mould that has partial structurtes; Have hinged flange, screw column, buckle or reinforcement in the thin shell piece, on punch, have: the hinged flange groove corresponding with hinged flange, with the corresponding screw column groove of screw column, with the corresponding buckle groove of buckle, the reinforcement groove corresponding with reinforcement.
The described complicated thin shell piece press forging and forming mould that has partial structurtes; Hinged flange groove on the punch forms the hinged flange of thin shell piece; The buckle groove forms the buckle of thin shell piece on the punch; The reinforcement groove forms the reinforcement of thin shell piece on the punch, and the punch post groove of tightening up a screw forms the screw column of thin shell piece.
There is one section empty cutter at the top end opening place of cover in the described complicated thin shell piece press forging and forming mould that has partial structurtes, die.
The described complicated thin shell piece press forging and forming mould that has partial structurtes, at empty cutter section, 2/3 of the long side thin shell piece height of empty cutter, the wide d of empty cutter gets 0.1-0.5mm.
The described complicated thin shell piece press forging and forming mould that has partial structurtes, the die core rod is a segmental structure, and epimere is a column, and hypomere is initial by cylindrical floor, that inwardly receive gradually round table-like.
The described complicated thin shell piece press forging and forming mould that has partial structurtes, the stylolitic part height of die core rod is L, L gets 10-20mm; The round platform part semi-cone angle of die core rod is β, and β gets 2-5 °.
The major advantage of the utility model:
1. the utility model improves the die contour structures, increases by one section empty cutter, can slow down the big relative pressure that press forging and forming produces, and helps metal flow, improves forming effect.
2. the outer casing member of the utility model shaping has typical local labyrinths such as screw column, reinforcement, buckle, hinged flange.
3. the utility model drip molding wall thickness is thinner, and its minimum forming thickness is 0.6mm.
4. the utility model die cushion block has been shared most of pressure of die core rod, and the die core rod has been played protective effect, has increased the service life of unitary mould, reduces the cost cost.
Die mold insert structure of the utility model and ejecting mechanism can realize ejecting with rollback freely, take out drip molding after making things convenient for press forging and forming, improved the operating efficiency of this technology, be easy to realize serialization and large-scale production.
Description of drawings
The complex thin-wall outer casing member press forging and forming mould assembly structure figure that Fig. 1 adopts for the utility model.
The punch structure figure that Fig. 2 adopts for the utility model.
Fig. 3 (a) adopts die profile in the mould for the utility model; Fig. 3 (b) is the partial view at D place in the die.
The die mold insert structure figure that Fig. 4 adopts for the utility model.
The complicated Mg alloy thin wall casing part sketch map of Fig. 5 for adopting the utility model to produce.
Among the figure: 1 cope match-plate pattern; 2 convex mould pads; 3 punch; 4 punch retainers; 5 die core rods; Cover in 6 dies; 7 die overcoats; 8 die cushion blocks; 9 die backing plates; 10 knock-pins; 11 lower bolsters; 12 hinged flange grooves; 13 buckle grooves; 14 reinforcement grooves; 15 screw column grooves; 16 outer casing members; 17 hinged flanges; 18 screw columns; 19 buckles; 20 reinforcements; 21 empty cuttves.
The specific embodiment
Below in conjunction with accompanying drawing and practical implementation the utility model is further described.
Like Fig. 1-shown in Figure 3; The complicated thin shell piece press forging and forming mould that the utility model has partial structurtes mainly comprises: cover 6, die overcoat 7, die cushion block 8, die backing plate 9, lower bolster 11, knock-pin 10 in cope match-plate pattern 1, convex mould pad 2, punch 3, punch retainer 4, die core rod 5, the die; Wherein: punch 3 is fixed on the convex mould pad 2 through punch retainer 4, and convex mould pad 2, punch 3, punch retainer 4 overall fixed are on cope match-plate pattern 1; Die core rod 5 is through 8 supports of die cushion block; And die core rod 5 is placed on die cushion block 8 and overlaps in 6 in the die; And cover 6, the die cushion block 8 common dies of forming are fixed in the die overcoat 7 in the die core rod 5, die, and die and die overcoat 7 are positioned on the die backing plate 9, and overall fixed is on lower bolster 11; Knock-pin 10 is positioned on lower bolster 11 counterbores; The upper end of knock-pin 10 is corresponding with the center of die cushion block 8 bottoms, and punch 3 is corresponding with die core rod 5, and blank is arranged between punch 3 and the die.
As shown in Figure 5; Have a hinged flange 17, three screw columns 18, three buckles 19, two reinforcements 20 in the outer casing member 16; Difficult point is: the hinged flange 17 of shaping U type, forming screw post 18 and buckle 19, four corners of outer casing member 16 housings are difficult to be shaped, and whole minimum wall thickness (MINI W.) can be controlled in 0.6mm.
In the present embodiment, the material trademark of outer casing member 16 is AZ31, and sheet material blank to be formed is smeared the lubricant polytetrafluoroethylene (PTFE); Put into die; Simultaneously mould is smeared the lubricant polytetrafluoroethylene (PTFE), wherein blank is only smeared upper surface, and mould is only smeared punch 3; This mode of smearing lubricant is in order to increase the frictional force of blank lower surface, and then inhales the formation in hole below avoiding.
Hinged flange 17, screw column 18, buckle 19, the reinforcement 20 of corresponding complicated outer casing member 16; On punch 3, have: the hinged flange groove 12 corresponding with hinged flange 17, with the corresponding screw column groove 15 of screw column 18, with the corresponding buckle groove 13 of buckle 19, the reinforcement groove 14 (Fig. 2) corresponding with reinforcement 20; Hinged flange groove 12 can form hinged flange; Buckle groove 13 can form buckle; Reinforcement groove 14 can form reinforcement, and screw column groove 15 can form screw column.Under the effect of punch 3, can form hinged flange 17, screw column 18, buckle 19 and reinforcement 20 on the outer casing member 16.In press forging and forming, die core rod 5 bears huge pressure, and the design of die cushion block 8 can be shared the partial pressure of die core rod 5, and die core rod 5 is played a protective role, and has increased the service life of die core rod 5.Press forging and forming must produce excess metal, and during the gap outflow of excess metal through punch and die, can produce huge frictional force; And this part frictional force has increased impact forging pressure greatly; In order to reduce impact forging pressure, the utility model improves the die structure, has increased by one section empty cutter 21 in excess metal outflow place; The huge frictional force that the empty cutter 21 of this section produces in the time of can reducing the excess metal outflow, thus press forging and forming pressure slowed down; On the other hand, owing to the excess metal flow resistance reduces, thereby improve finish-forging metal flow property, this helps to improve the forming effect of final blank.Behind the press forging and forming, outer casing member is after bearing immense pressure, and usually quick-fried dead gluing is posted in the concave die cavity; Become very difficult for taking out drip molding, and this also usually becomes a difficult problem of impact forging technology, the utility model has improved die core rod and impact forging ejecting structure; Can extremely be easy to eject press forging and forming spare; Take out drip molding after making things convenient for press forging and forming, further improve the operating efficiency of this technology, be easy to realize serialization and large-scale production.
In the present embodiment, cover 6, die cushion block 8 have been formed the impact forging die in the die core rod 5 in the mould, the die, and its material selection has the H13 hot die steel of higher thermal epistasis, heat endurance and quenching degree; Shown in Fig. 3 (a)-4, in the utility model, die core rod 5 is a segmental structure, and epimere is a column, and it highly is L; Hypomere is initial by cylindrical floor, that inwardly receive gradually round table-like, and the semi-cone angle of round platform is β, is convenient to take out press forging and forming spare; Die cushion block 8 is carrying bigger pressure, be the part of damaging the most easily in a whole set of mould, and die cushion block 8 has been shared most of pressure of die core rod 5, and die core rod 5 has been played protective effect; Shown in Fig. 3 (b), there is the empty cutter 21 of a segment length l, wide d at the top end opening place among the partial view D of the interior cover 6 of die, and structure is easy to flowing of excess metal here, can slow down the pressure greatly that impact forging produces relatively.L, β, l and d can be according to die and the adjustment of core rod size design; Wherein the design principle of L and β was for both can guarantee that the cooperation of epimere die and core rod and die plate insert bottom surface had enough load-carrying surface; Can guarantee again to eject smoothly, L gets 10-20mm, and β gets 2-5 ° (Fig. 4); The design principle of l is for guaranteeing enough edge forming height, and by reducing forming pressure as much as possible, l generally gets 2/3 of side part height; D generally gets 0.1-0.5mm.
Embodiment result shows, the utility model most of typical partial structurtes in the complicated shell class part that can be shaped, and like screw column, reinforcement, buckle, hinged flange etc., wall thickness can be at 0.6-1mm.The mould structure of the utility model design can reduce press forging and forming pressure and improve metal flow property; The continuity that has realized the die model simultaneously ejects and returns automatically; Take out drip molding after making things convenient for press forging and forming, improved the operating efficiency of press forging and forming, be easy to realize serialization and large-scale production.
Claims (8)
1. complicated thin shell piece press forging and forming mould that has partial structurtes; It is characterized in that: this press forging and forming mould is provided with: cover, die overcoat, die cushion block, die backing plate, lower bolster, knock-pin in cope match-plate pattern, convex mould pad, punch, punch retainer, die core rod, the die; Wherein: punch is fixed on the convex mould pad through punch retainer, and convex mould pad, punch, punch retainer overall fixed are on cope match-plate pattern; The die core rod supports through the die cushion block; And during die core rod and die cushion block are placed on and overlap in the die; The die that cover, die cushion block mutual group become in die core rod, the die is fixed in the die overcoat; Die and die overcoat are positioned on the die backing plate, and overall fixed is on lower bolster, and knock-pin is positioned on the lower bolster counterbore.
2. according to the described complicated thin shell piece press forging and forming mould that has partial structurtes of claim 1, it is characterized in that: the upper end of knock-pin is corresponding with the center of die cushion block bottom, and punch is corresponding with the die core rod, and blank is arranged between punch and the die.
3. according to the described complicated thin shell piece press forging and forming mould that has partial structurtes of claim 1; It is characterized in that: have hinged flange, screw column, buckle or reinforcement in the thin shell piece, on punch, have: the hinged flange groove corresponding with hinged flange, with the corresponding screw column groove of screw column, with the corresponding buckle groove of buckle, the reinforcement groove corresponding with reinforcement.
4. according to the described complicated thin shell piece press forging and forming mould that has partial structurtes of claim 3; It is characterized in that: the hinged flange groove on the punch forms the hinged flange of thin shell piece; The buckle groove forms the buckle of thin shell piece on the punch; The reinforcement groove forms the reinforcement of thin shell piece on the punch, and the punch post groove of tightening up a screw forms the screw column of thin shell piece.
5. according to the described complicated thin shell piece press forging and forming mould that has partial structurtes of claim 1, it is characterized in that: there is one section empty cutter at the top end opening place of cover in the die.
6. according to the described complicated thin shell piece press forging and forming mould that has partial structurtes of claim 5, it is characterized in that: at empty cutter section, 2/3 of the long side thin shell piece height of empty cutter, the wide d of empty cutter gets 0.1-0.5mm.
7. according to the described complicated thin shell piece press forging and forming mould that has partial structurtes of claim 1, it is characterized in that: the die core rod is a segmental structure, and epimere is a column, and hypomere is initial by cylindrical floor, that inwardly receive gradually round table-like.
8. according to the described complicated thin shell piece press forging and forming mould that has partial structurtes of claim 7, it is characterized in that: the stylolitic part height of die core rod is L, and L gets 10-20mm; The round platform part semi-cone angle of die core rod is β, and β gets 2-5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205017867U CN202447570U (en) | 2011-12-06 | 2011-12-06 | Forging forming die for complex thin-shell piece with local structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205017867U CN202447570U (en) | 2011-12-06 | 2011-12-06 | Forging forming die for complex thin-shell piece with local structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202447570U true CN202447570U (en) | 2012-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205017867U Expired - Lifetime CN202447570U (en) | 2011-12-06 | 2011-12-06 | Forging forming die for complex thin-shell piece with local structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN202447570U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100630A (en) * | 2013-02-21 | 2013-05-15 | 昆山科海模具有限公司 | Workpiece framework of solid of revolution |
| CN113828722A (en) * | 2021-09-05 | 2021-12-24 | 桂林理工大学 | Design method of hard disk box body extrusion die |
-
2011
- 2011-12-06 CN CN2011205017867U patent/CN202447570U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100630A (en) * | 2013-02-21 | 2013-05-15 | 昆山科海模具有限公司 | Workpiece framework of solid of revolution |
| CN113828722A (en) * | 2021-09-05 | 2021-12-24 | 桂林理工大学 | Design method of hard disk box body extrusion die |
| CN113828722B (en) * | 2021-09-05 | 2023-05-30 | 桂林理工大学 | Design method of hard disk box extrusion die |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120926 |