CN208613468U - A kind of whole shaping dies of thin-walled spherical part - Google Patents
A kind of whole shaping dies of thin-walled spherical part Download PDFInfo
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- CN208613468U CN208613468U CN201820973628.3U CN201820973628U CN208613468U CN 208613468 U CN208613468 U CN 208613468U CN 201820973628 U CN201820973628 U CN 201820973628U CN 208613468 U CN208613468 U CN 208613468U
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Abstract
A kind of whole shaping dies of thin-walled spherical part, contain upper mold, lower die, plug, active module and pedestal, the upper mold has a hemispheric inner cavity corresponding with thin-walled spherical part, lower die also has half spherical cavity of lower die corresponding with upper mold, upper mold and lower die snapping form the spherical forming cavity of a part, plug is rabbeted in the lower end of lower die, plug is an inverted T-shaped structure, it is matched with ball bottomless drum shape part, the upper end of plug passes through centre hole of base, there is the matched wedge-shaped active module of multiple and lower die around plug, the plug is connected by a filling liquid interface with highly pressurised liquid, exhaust pipe is vertically fixed on plug, the height of the exhaust pipe and the matched of forming cavity, the lower end of exhaust pipe and outside air connection.
Description
Technical field
This application involves a kind of thin-walled parts Plastic Forming, especially a kind of shaping dies of bulb.
Background technique
Requirement with fields such as Aeronautics and Astronautics, automobiles to lightweight, integration, large scale, difficult deformation, thin wall zero
Part is widely adopted, while bringing stern challenge to Plastic Forming manufacturing technology.Liquid-filling shaping is as a kind of flexible forming
Technology has the characteristics that forming accuracy is high, surface quality is good, with short production cycle and suitable forming labyrinth thin-walled parts,
Its application range tends to be extensive.Liquid-filling shaping can be divided into plate liquid-filling shaping and hydroforming by material type, wherein plate
Material liquid-filling shaping can be divided into active liquid-filling shaping and passive type liquid-filling shaping again.Passive type liquid-filling shaping can be improved part
Forming limit, part that can be deeper with single drawing depth, internal high pressure forming rely on the effect of fluid pressure, blank are fitted in
On mold cavity, blank uniform force, rebound is small, can guarantee the forming accuracy of part.
Bulb is due to its design feature, it is difficult to monolithic molding is carried out using traditional manufacturing process, often by half
Bulb welding forms.Hemisphere-shaped workpiece synthesizes after shaping since the factors such as rebound, trimming match hemisphere-shaped workpiece
The bulb that size requires is more difficult, and adjusting constantly repeatedly is needed to reduce production efficiency to ensure welding precision.
Meanwhile in welding process due to the effect of fuel factor so that part deformation is serious after welding, cause to repair difficult, surface quality
Difference, the defects such as parts size precision is low.The bulb being welded by hemisphere-shaped workpiece mechanical property, air-tightness, resist it is tired
Labor etc. is not so good as to use integrally formed bulb.
Summary of the invention
To solve the above-mentioned problems, this application provides a kind of whole shaping dies of thin-walled spherical part.
The whole shaping dies contains upper die and lower die, plug, active module and pedestal, the upper mold have one with
The corresponding hemispheric inner cavity of thin-walled spherical part, lower die also have half spherical cavity of lower die corresponding with upper mold, upper mold and lower die
Snapping forms the spherical forming cavity of a part, and plug is rabbeted in the lower end of lower die, and plug is an inverted T-shaped structure, with ball bottom
The upper end of cylindrical member matching, plug passes through centre hole of base, and there have around plug to be multiple movable with the matched wedge shape of lower die
Module, the plug are connected by a filling liquid interface with highly pressurised liquid, and exhaust pipe is vertically fixed on plug, the height of the exhaust pipe
The matched of degree and forming cavity, the lower end of exhaust pipe is connected to outside air.
In whole shaping stage, the plug of whole shaping dies and pedestal are placed on platen, by preformed ball bottom
Cylindrical member tips upside down on plug, then wedge-shaped active module is placed in around plug, the spherical molding that upper mold and lower die are formed
Chamber and plug seal, and by the filling liquid interface on plug to ball bottomless drum shape part internal filled liquid, while exhaust pipe passes through exhaust port
It is connected to outside air, when liquid level reaches ball bottomless drum shape part bottom, closes vent connection, make to fill inside ball bottomless drum shape part
Full highly pressurised liquid, ball bottomless drum shape part are bonded under the pressure of internal liquid with spherical forming cavity, shape bulb.
The advantages of the application, is: can obtain entirety using hydroforming on the basis of preformed ball bottomless drum shape part
Property preferable spherical parts, reduce welding capacity, eliminate the forming defects caused by welding, improve the mechanical performance of part,
The workload for reducing intermediate assembling process, improves production efficiency.
Detailed description of the invention
Fig. 1 is bulb schematic diagram.
Fig. 2 is the forming cavity structure chart of whole shaping dies upper die and lower die composition.
Fig. 3 is whole shaping dies plug, active module and pedestal assembly structure figure.
Fig. 4 is whole shaping dies sectional structure chart.
Explanation: 9 upper molds, 10 lower dies, 11 3 petals, 12 filling liquid interfaces, 13 pedestals, 14 plugs, 15 ball bottoms cylinder is numbered in figure
Shape part, 16 exhaust pipes, 17 bulbs.
Specific embodiment
A kind of whole shaping dies of thin-walled spherical part of the application is carried out in the following with reference to the drawings and specific embodiments detailed
Explanation.
Fig. 1 is a bulb 17, and traditional manufacturing process needs to shape two hemisphere and is spliced into bulb again.It deposits
In forming technology complexity, the not high disadvantage of surface quality.
Applicant proposed a kind of manufacturing process of thin-walled spherical part and its assist formation molds.The manufacturing process includes
Preform and eventually forming two parts, shape the ball bottomless drum shape part of straight wall, through the past by passive type liquid-filling shaping technology first
After stress annealing, preformed ball bottomless drum shape part is put into hydroforming mold, final bulging goes out bulb 17.
In whole shaping stage, ball bottomless drum shape part 15 is passed through into whole shaping dies bulging into bulb.The mold shaped eventually
Containing upper mold 9, lower die 10, plug 14, active module 11 and pedestal 13, the upper mold 9 has one and thin-walled spherical part 17
Corresponding hemispheric inner cavity, lower die 10 also have half spherical cavity of lower die corresponding with upper mold, and upper mold and lower die snapping form one
The spherical forming cavity of a part, plug 14 are rabbeted in the lower end of lower die 10, and plug 14 is an inverted T-shaped structure, with ball bottomless drum shape
Part 15 matches, and the upper end of plug 14 passes through 13 centre bore of pedestal, has around plug multiple living with the matched wedge shape of lower die
Dynamic model block 11, the plug 14 are connected by a filling liquid interface 12 with highly pressurised liquid, and exhaust pipe 16 is vertically fixed on plug 14,
The height of the exhaust pipe and the matched of forming cavity, the lower end of exhaust pipe 16 are connected to outside air.
Bulb eventually shape when, the plug 14 of whole shaping dies and pedestal 13 are placed on platen, will in advance at
The ball bottomless drum shape part 15 of shape tips upside down on plug, then wedge-shaped active module 11 is placed in around plug 14, by upper mold 9 and lower die
The 10 spherical forming cavities formed and plug 14 seal, and upper mold 9 is oriented to lower die 10 by matching relationship.By on plug 14
Filling liquid interface 12 to 15 internal filled liquid of ball bottomless drum shape part, while exhaust pipe 16 is connected to by exhaust port with outside air, when
When liquid level reaches ball bottomless drum shape 15 bottom of part, exhaust pipe 16 is closed, is made inside ball bottomless drum shape part 15 full of highly pressurised liquid, ball
Bottomless drum shape part is bonded under the pressure of internal liquid with spherical forming cavity, shapes bulb 15.
Active module 11 is made of three pieces of petals in implementation, is arranged on pedestal 13, and the outer rim of active module 11 is wedge
Shape structure is matched with the wedge structure of lower die 10, when lower die 10 moves down, makes active module 11 by wedge structure
It moves radially, so that generating biggish mold clamping force, between active module 11 and plug 14 to reach 15 mouthfuls of ball bottomless drum shape part
The purpose of portion's sealing.
Claims (2)
1. a kind of whole shaping dies of thin-walled spherical part, which is characterized in that the whole shaping dies contain upper die and lower die,
Plug, active module and pedestal, the upper mold have a hemispheric inner cavity corresponding with thin-walled spherical part, and lower die also has
One half spherical cavity of lower die corresponding with upper mold, upper mold and lower die snapping form the spherical forming cavity of a part, and plug interlocking exists
The lower end of lower die, plug are an inverted T-shaped structures, are matched with ball bottomless drum shape part, and the upper end of plug passes through centre hole of base,
There is the matched wedge-shaped active module of multiple and lower die around plug, which passes through a filling liquid interface and highly pressurised liquid phase
Even, exhaust pipe is vertically fixed on plug, the height of the exhaust pipe and the matched of forming cavity, the lower end and the external world of exhaust pipe
Air communication.
2. the whole shaping dies of thin-walled spherical part as described in claim 1, it is characterised in that: the wedge-shaped active module
There are three pieces, forms one and the matched ring structure of plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820973628.3U CN208613468U (en) | 2018-06-22 | 2018-06-22 | A kind of whole shaping dies of thin-walled spherical part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820973628.3U CN208613468U (en) | 2018-06-22 | 2018-06-22 | A kind of whole shaping dies of thin-walled spherical part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208613468U true CN208613468U (en) | 2019-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820973628.3U Active CN208613468U (en) | 2018-06-22 | 2018-06-22 | A kind of whole shaping dies of thin-walled spherical part |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723160A (en) * | 2018-06-22 | 2018-11-02 | 西安飞机工业（集团）有限责任公司 | A kind of manufacturing process and shaping dies of thin-walled spherical part |
| CN110508661A (en) * | 2019-09-02 | 2019-11-29 | 中国航发南方工业有限公司 | A kind of thin-wall annular part manufacturing process and its mold |
-
2018
- 2018-06-22 CN CN201820973628.3U patent/CN208613468U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723160A (en) * | 2018-06-22 | 2018-11-02 | 西安飞机工业（集团）有限责任公司 | A kind of manufacturing process and shaping dies of thin-walled spherical part |
| CN110508661A (en) * | 2019-09-02 | 2019-11-29 | 中国航发南方工业有限公司 | A kind of thin-wall annular part manufacturing process and its mold |
| CN110508661B (en) * | 2019-09-02 | 2020-09-18 | 中国航发南方工业有限公司 | Thin-wall annular piece forming method and die thereof |
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