CN106001234A - Novel liquid-expansion molding device and liquid-expansion molding process - Google Patents
Novel liquid-expansion molding device and liquid-expansion molding process Download PDFInfo
- Publication number
- CN106001234A CN106001234A CN201610399784.9A CN201610399784A CN106001234A CN 106001234 A CN106001234 A CN 106001234A CN 201610399784 A CN201610399784 A CN 201610399784A CN 106001234 A CN106001234 A CN 106001234A
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- China
- Prior art keywords
- pressure
- mould
- liquid
- pressure mould
- floating
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/021—Deforming sheet bodies
- B21D26/031—Mould construction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/021—Deforming sheet bodies
- B21D26/025—Means for controlling the clamping or opening of the moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
- B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
- B21D26/021—Deforming sheet bodies
- B21D26/029—Closing or sealing means
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The invention discloses a novel liquid-expansion molding device and a liquid-expansion molding process. The novel liquid-expansion molding device comprises an autofrettage pressure mould and a floating pressure mould. The autofrettage pressure mould is provided with a molding cavity; a through hole matched with the molding cavity is formed in the middle of the floating pressure mould which is mounted in a liquid-expansion pressure cavity; the edges of a plate to be molded are pressed by the adjoining plane of the floating pressure mould and the autofrettage pressure mould which is connected with a press machine; the liquid-expansion pressure cavity is connected with high-pressure liquid; in the molding process, the press machine is used for pressing and sealing the edges of the plate to be molded, and the high-pressure liquid is input into the liquid-expansion pressure cavity and acts on the plate to be molded, so that the plate to be molded deforms toward the molding cavity of the autofrettage pressure mould and is molded. The structures of the liquid-expansion molding moulds can achieve liquid-expansion molding of the plate, and the structure of the novel liquid-expansion molding device can also be conveniently used for liquid-expansion molding of the plate. The process is simple, requirements for the moulds are low, and the precision of molding can also be improved. Further, the structure can reduce the work load of the press machine, the work pressure of the press machine is reduced at the same time, and use requirements are lowered.
Description
Technical field
The present invention relates to a kind of liquid expansion forming device and hydraulic expansion forming process.
Background technology
Hydraulic expansion forming process has shaping speed and soon and is easy to the advantages such as profiled piece molding, existing hydraulic expansion forming process
Apply in general to the shaping workpiece of column or tubulose, during molding, body or cylinder are put in mould, and two ends are sealed
And inject highly pressurised liquid, body or cylinder under highly pressurised liquid effect, produce swollen type finally limited molding by mould.And
For sheet material, existing technique typically uses punch forming, by press, mould matched moulds is made plate forming, becomes
The type precision precision by mould and the pressure limit of press, and during mould molding, stress is relatively big, therefore to molding
The requirement of mould is the highest.The most it is not capable of the employing hydraulic expansion forming process of plate forming.
Summary of the invention
It is an object of the invention to provide a kind of New expansion forming device, it is possible to the liquid realizing sheet material is expanded into type, and energy
Enough reduce the thrust of press, reduce energy consumption.
It is a further object of the present invention to provide a kind of hydraulic expansion forming process, it is possible to quickly sheet material is realized liquid is expanded into type.
The present invention is realized in that above-mentioned purpose:
New expansion forming device, including preload pressure mould and floating pressure mould, described preload pressure mould is provided with shaping mold cavity, floating
Being provided with the through hole adapted with shaping mold cavity in the middle part of dynamic pressure mould, floating pressure mould is installed in the swollen pressure chamber of liquid；Sheet forming
Edge compressed by the composition surface of floating pressure mould with preload pressure mould；Preload pressure mould is connected with forcing press, liquid is swollen pressure chamber
Connect highly pressurised liquid；During molding, forcing press drives preload pressure mould to coordinate with floating pressure mould and is compressed at the edge of sheet forming
And seal, liquid is swollen, and pressure chamber inputs highly pressurised liquid, and highly pressurised liquid produces buoyancy to floating pressure mould and is compacted into template further
The edge of material, and highly pressurised liquid acts on sheet forming so that it is to the shaping mold cavity deformation molding of preload pressure mould.
Wherein, during molding, after forcing press drives preload pressure mould to coordinate with floating pressure mould, by preload pressure mode locking.
Wherein, the composition surface of floating pressure mould and preload pressure mould be respectively equipped with cooperate for locking sheet forming
The projection at edge and groove.
Wherein, described floating pressure mould is provided with pressure transducer with the composition surface of preload pressure mould.
Use the hydraulic expansion forming process of New expansion forming device, comprise the following steps that:
A. sheet forming is positioned between preload pressure mould and floating pressure mould；
B. the edge of sheet forming is clamped in preload pressure mould and floating pressure mould under the driving of forcing press by preload pressure mould
Between, the edge of sheet forming seals with floating pressure mould；
C. liquid swollen pressure chamber input highly pressurised liquid, sheet forming under the effect of highly pressurised liquid to the shaping mold cavity of preload pressure mould
Deformation molding.
Wherein, described step c is divided into preforming and precise forming two sub-steps, and the input of highly pressurised liquid is by big pressure
Valve and the connection of little pressure valve input to the swollen pressure chamber of liquid；When preforming, open big pressure valve, close little pressure valve, molding
Sheet material, to shaping mold cavity deformation, completes preforming；When precise forming, close big pressure valve, open little pressure valve the most further
The pressure increasing highly pressurised liquid reduces the flow of the swollen pressure chamber of highly pressurised liquid influent simultaneously, and sheet forming is implemented as further
Type.
The invention has the beneficial effects as follows: have employed new liquid swelling forming die structure, it is possible to the liquid realizing sheet material is expanded into type,
Instead of existing stamping forming technique so that sheet material also is able to be convenient to use the structure of the present invention and realizes liquid and be expanded into type, work
Skill is simple and mould requires low, can improve the precision of molding simultaneously.It addition, preload pressure mould completes under forcing press effect
After pretension, preload pressure mould can be locked, and increase the pressure of the swollen pressure chamber of liquid, now can subtract with closing presure machine
The workload of few forcing press, can effectively reduce the operating pressure of forcing press simultaneously, reduces and uses requirement, during swollen type, floating
The thrust that the edge generation of sheet forming is bigger is realized sealing under the buoyancy of highly pressurised liquid by dynamic pressure mould.
Accompanying drawing explanation
The present invention is further described with embodiment below in conjunction with the accompanying drawings:
Fig. 1 is the schematic diagram of the present invention.
Detailed description of the invention
With reference to Fig. 1, New expansion forming device, including preload pressure mould 1 and floating pressure mould 2, described preload pressure mould 1
Being provided with shaping mold cavity 3, be provided with the through hole 4 adapted with shaping mold cavity 3 in the middle part of floating pressure mould 2, floating pressure mould 2 is installed on liquid
In swollen pressure chamber 5；The edge of sheet forming is compressed by the composition surface of floating pressure mould 2 with preload pressure mould 1；Preload pressure mould 1
Being connected with forcing press, liquid is swollen, and pressure chamber 5 connects highly pressurised liquid 6；During molding, forcing press drives preload pressure mould 1 and floating pressure
Mould 2 coordinates the edge of sheet forming is compressed and sealed, and liquid is swollen, and pressure chamber 5 inputs highly pressurised liquid 6, and highly pressurised liquid 6 is to pressure of floating
Power mould 2 produces buoyancy and is compacted into the edge of based plate further, and highly pressurised liquid 6 acts on sheet forming after through hole 4,
Briquetting pressure is the operating pressure × through hole area of section of highly pressurised liquid 6, makes it to preload pressure under the effect of briquetting pressure
The shaping mold cavity 3 deformation molding of mould 1.Have employed new liquid swelling forming die structure, it is possible to the liquid realizing sheet material is expanded into type, substitute
Existing stamping forming technique so that sheet material also is able to be convenient to use the structure of the present invention and realizes liquid and be expanded into type, technique letter
Single and mould requires low, the precision of molding can be improved simultaneously.It addition, preload pressure mould 1 completes pre-under forcing press effect
After Jin, preload pressure mould 1 can be locked, and increase the pressure of the swollen pressure chamber of liquid 5, now can subtract with closing presure machine
The workload of few forcing press, can effectively reduce the operating pressure of forcing press simultaneously, reduces and uses requirement, during swollen type, floating
The thrust that the edge generation of sheet forming is bigger is realized sealing under the buoyancy of highly pressurised liquid 6 by dynamic pressure mould 2.
Reach the purpose of energy-saving and emission-reduction to reduce the workload of forcing press, during molding, forcing press drives preload pressure
After mould 1 coordinates with floating pressure mould 2, being locked by preload pressure mould 1, now the edge of sheet forming can rely on floating pressure completely
Power mould 2 is at buoyancy produced by highly pressurised liquid 6, and described buoyancy is the work of the operating pressure P × floating pressure mould 2 of highly pressurised liquid 6
Making buoyancy area S, along with operating pressure P of highly pressurised liquid 6 incrementally increases, the buoyancy of floating pressure mould 2 also can increase therewith, becomes
It is identical with buoyancy that the edge of based plate produces bigger thrust, thus reaches good sealing effectiveness
Produced tension force during in order to ensure the sealing effectiveness at the edge of sheet material and resist molding, floating pressure mould 2 and pretension
The composition surface of pressure mould 1 is respectively equipped with projection 7 and the groove 8 for locking sheet forming edge cooperated.
In order to suitably regulate the pressure of molding and use different briquetting pressures according to different formative stages, described floating
Dynamic pressure mould 2 is provided with pressure transducer with the composition surface of preload pressure mould 1, floating pressure mould 2 detected by pressure transducer
Buoyancy, the most just can calculate the pressure of liquid swollen pressure chamber 5 mesohigh liquid 6, according to different formative stages, by adjusting
Pressure valve adjusts the pressure of highly pressurised liquid 6, it is achieved the adjustment of briquetting pressure.
The hydraulic expansion forming process of New expansion forming device, comprises the following steps that:
A. sheet forming is positioned between preload pressure mould 1 and floating pressure mould 2；
B. the edge of sheet forming is clamped in preload pressure mould 1 and floating pressure under the driving of forcing press by preload pressure mould 1
Between mould 2, the edge of sheet forming seals with floating pressure mould 2；
C. the swollen pressure chamber of liquid 5 inputs highly pressurised liquid 6, sheet forming under the effect of highly pressurised liquid 6 to the molding of preload pressure mould 1
Die cavity 3 deformation molding.
Big in view of plate forming amount during preforming, for can be good at controlling the sheet material uniform deformation of generation, therefore want
The pressure asking applying is relatively small, but during follow-up precise forming, needs the details position of shaping mold cavity 3 is realized molding, carry
The precision of high molding, needs for this to improve briquetting pressure, so step c is divided into preforming and precise forming two sub-steps,
The input of highly pressurised liquid 6 is inputted to the swollen pressure chamber of liquid 5 by big pressure valve and the connection of little pressure valve；When preforming, open big
Pressure valve, closes little pressure valve, and sheet forming, to shaping mold cavity 3 deformation, completes preforming；When precise forming, close big pressure
Power valve, open little pressure valve and further increase highly pressurised liquid 6 pressure reduce the highly pressurised liquid 6 swollen pressure chamber of influent 5 simultaneously
Flow, sheet forming realizes molding further.
Claims (6)
1. New expansion forming device, it is characterised in that: include preload pressure mould (1) and floating pressure mould (2), described pre-press
Power mould (1) is provided with shaping mold cavity (3), and floating pressure mould (2) middle part is provided with the through hole (4) adapted with shaping mold cavity (3), floats
Pressure mould (2) is installed in the swollen pressure chamber of liquid (5)；The edge of sheet forming is by floating pressure mould (2) and preload pressure mould (1)
Composition surface compresses；Preload pressure mould (1) is connected with forcing press, and liquid is swollen, and pressure chamber (5) connects highly pressurised liquid (6)；During molding, pressure
Machine drives preload pressure mould (1) to coordinate with floating pressure mould (2) edge of sheet forming is compressed and sealed, liquid is swollen pressure chamber
(5) input highly pressurised liquid (6), highly pressurised liquid (6) produces buoyancy and is compacted into the limit of based plate further floating pressure mould (2)
Edge, and highly pressurised liquid (6) acts on sheet forming so that it is to shaping mold cavity (3) the deformation molding of preload pressure mould (1).
New expansion forming device the most according to claim 1, it is characterised in that: during molding, forcing press drives and presses in advance
After power mould (1) coordinates with floating pressure mould (2), preload pressure mould (1) is locked.
New expansion forming device the most according to claim 1, it is characterised in that: floating pressure mould (2) and preload pressure
The composition surface of mould (1) is respectively equipped with projection (7) and the groove (8) for locking sheet forming edge cooperated.
New expansion forming device the most according to claim 1, it is characterised in that: described floating pressure mould (2) and pretension
The composition surface of pressure mould (1) is provided with pressure transducer.
5. use the hydraulic expansion forming process of New expansion forming device described in claim 1, it is characterised in that include following technique
Step:
A. sheet forming is positioned between preload pressure mould (1) and floating pressure mould (2)；
B. the edge of sheet forming is clamped in preload pressure mould (1) under the driving of forcing press and floats by preload pressure mould (1)
Between pressure mould (2), the edge of sheet forming seals with floating pressure mould (2)；
C. the swollen pressure chamber of liquid (5) input highly pressurised liquid (6), sheet forming under the effect of highly pressurised liquid (6) to preload pressure mould
(1) shaping mold cavity (3) deformation molding.
The hydraulic expansion forming process of use New expansion forming device the most according to claim 5, it is characterised in that: described c
Step is divided into preforming and precise forming two sub-steps, and the input of highly pressurised liquid (6) is connected by big pressure valve and little pressure valve
Connect and input to the swollen pressure chamber of liquid (5)；When preforming, opening big pressure valve, close little pressure valve, sheet forming is to shaping mould
Chamber (3) deformation, completes preforming；When precise forming, close big pressure valve, open little pressure valve and increase high pressure liquid further
The pressure of body (6) reduces the flow of the swollen pressure chamber of highly pressurised liquid (6) influent (5) simultaneously, and sheet forming realizes molding further.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399784.9A CN106001234B (en) | 2016-06-08 | 2016-06-08 | Liquid expansion forming device and hydraulic expansion forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610399784.9A CN106001234B (en) | 2016-06-08 | 2016-06-08 | Liquid expansion forming device and hydraulic expansion forming process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106001234A true CN106001234A (en) | 2016-10-12 |
| CN106001234B CN106001234B (en) | 2018-02-23 |
Family
ID=57089930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610399784.9A Active CN106001234B (en) | 2016-06-08 | 2016-06-08 | Liquid expansion forming device and hydraulic expansion forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106001234B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112371822A (en) * | 2020-10-26 | 2021-02-19 | 深圳市飞荣达科技股份有限公司 | Sectional machining method for expansion plate |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3149596A (en) * | 1961-06-13 | 1964-09-22 | Gen Dynamics Corp | Forming apparatus |
| CN86107980A (en) * | 1985-12-04 | 1987-07-29 | 于西诺尔钢铁公司 | The Processes and apparatus of the pressure forming of little percentage elongation sheet material |
| DE19734277A1 (en) * | 1997-08-07 | 1999-02-18 | Forschungsges Umformtechnik | Device for deep-drawing metal plate |
| CN1371771A (en) * | 2002-03-27 | 2002-10-02 | 鞍山市千山区特种金属材料制品厂 | Method for making metal composite pipe |
| CN1824409A (en) * | 2005-08-08 | 2006-08-30 | 孙旭光 | External beating metal plate material high temperature ultrahigh water pressure once shaping technology, method and equipment |
-
2016
- 2016-06-08 CN CN201610399784.9A patent/CN106001234B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3149596A (en) * | 1961-06-13 | 1964-09-22 | Gen Dynamics Corp | Forming apparatus |
| CN86107980A (en) * | 1985-12-04 | 1987-07-29 | 于西诺尔钢铁公司 | The Processes and apparatus of the pressure forming of little percentage elongation sheet material |
| DE19734277A1 (en) * | 1997-08-07 | 1999-02-18 | Forschungsges Umformtechnik | Device for deep-drawing metal plate |
| CN1371771A (en) * | 2002-03-27 | 2002-10-02 | 鞍山市千山区特种金属材料制品厂 | Method for making metal composite pipe |
| CN1824409A (en) * | 2005-08-08 | 2006-08-30 | 孙旭光 | External beating metal plate material high temperature ultrahigh water pressure once shaping technology, method and equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112371822A (en) * | 2020-10-26 | 2021-02-19 | 深圳市飞荣达科技股份有限公司 | Sectional machining method for expansion plate |
| CN112371822B (en) * | 2020-10-26 | 2022-06-03 | 深圳市飞荣达科技股份有限公司 | Sectional machining method for expansion plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106001234B (en) | 2018-02-23 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Xinhui District, Guangdong city of Jiangmen province 529000 City Road No. 3 (now No. 2 building) Applicant after: Guangdong Hongye Machinery Co., Ltd. Address before: 529000, Jiangmen, Guangdong province Xinhui District will be east of the city of Xu Village (Vinda paper towel city opposite) Applicant before: ZHOU QIYOU |
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| GR01 | Patent grant |