CN102632125A - Plate differential temperature hydroforming device capable of realizing radial pressurizing and hydraulic blank pressing - Google Patents
Plate differential temperature hydroforming device capable of realizing radial pressurizing and hydraulic blank pressing Download PDFInfo
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- CN102632125A CN102632125A CN2012100943478A CN201210094347A CN102632125A CN 102632125 A CN102632125 A CN 102632125A CN 2012100943478 A CN2012100943478 A CN 2012100943478A CN 201210094347 A CN201210094347 A CN 201210094347A CN 102632125 A CN102632125 A CN 102632125A
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Abstract
The invention provides a plate differential temperature hydroforming device capable of realizing radial pressurizing and hydraulic blank pressing, which comprises a male die, a blank holder, a female die, a pressurizing device, an electromagnetic proportional overflow valve and a fluid heating device. A female die cavity arranged inside the female die is connected with a high-pressure end of the pressurizing device through a filling hole, the blank holder is arranged on the female die, a blank holder cavity arranged at the bottom of the blank holder is connected with the high-pressure end of the pressurizing device through a filling hole, and the high-pressure end and a low-pressure end of the pressurizing device are connected with the fluid heating device and the electromagnetic proportional overflow valve respectively. By the aid of the hydroforming device and by means of radial pressurizing, hydraulic blank pressing and differential temperature hydroforming, the forming performance of a plate can be improved, and parts with more complicated shapes, higher drawing ratio and higher requirements on dimensional precision can be formed.
Description
Technical field
The present invention relates to sheet material topping up thermal forming device, particularly a kind of sheet material differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging.
Background technology
In recent years; Along with environmental pollution; And the problem of the energy and shortage of raw materials is on the rise; The increasing demand of the light in structure quantification in manufacturing such as Aero-Space, automobile field, integration, best quality increases, and makes many sheet materials such as aluminium alloy, magnesium alloy, titanium alloy, unimach, high temperature alloy or composite etc. receive day by day and pays close attention to widely.Although these materials have many advantages; But compare traditional material such as mild steel etc.; Itself exist more serious anisotropy, stress to concentrate obviously, resilience is serious and shortcoming such as temperature-room type plasticity difference; The formation of parts precision is low long with forming period, has increased the manufacture difficulty and the cost of part greatly, has had a strong impact on the commercial Application of product.Therefore, normal temperature is the difficult problem of shaping down, has become the bottleneck of the further expanding application of these new materials, has seriously hindered its application.
The new forming technique of research and development---the hot forming of sheet material topping up is technological recently, has brought into play the two-fold advantage of sheet material warm forming and sheet material liquid-filling shaping simultaneously, can significantly improve the forming property of the sheet material of bad plasticity under the normal temperature.Yet along with the energy, environmental issue are increasingly serious, and the proposition of low-carbon (LC) living awareness, light in structure quantizes, integration requires to improve constantly; Complicated overall structure constantly occurs, and some are more complicated, even pull and stretch is difficult to also realize that than the bigger existing sheet material topping up of overall structure part hot forming technology Integratively is shaped; Some parts have to adopt multi-pass to be shaped; Or the method that partial plastic forming welds again makes, and will certainly cause technology redundant like this, and the formation of parts precision is low; Cost is high, and the cycle is long.This just needs the innovation and the improvement of process or version, comes the crystallized ability of abundant excavated material.
At publication number is in the patent of invention among the CN 101274343A, discloses a kind of device that improves the sheet material forming limit.This device is made up of upper mould device, lower cavity die, fluid pressure generation device A, fluid pressure generation device B, overflow valve A and overflow valve B, forms the back pressure die cavity between blank holder in the upper mould device and the punch.This invention belongs to the device of the raising sheet material forming limit of another kind of form; This device is not considered the raising of the flange position material forming ability of deformation extent maximum in the sheet forming process, and the heating unit of this invention directly is placed in the die in addition, and this need be heated to very high-temperature to mould inside; Add hot fluid medium and plate through the heat conduction again; The efficiency of heating surface is low, and power consumption is big, and is difficult to realize precise dose control.
Summary of the invention
The purpose of this invention is to provide a kind of differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging, to improve the forming property of sheet material, realize that shape is more complicated, pull and stretch is than the part forming higher, that dimension precision requirement is higher.
For solving the problems of the technologies described above; A kind of sheet material differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging provided by the invention comprises: punch, blank holder, die, first supercharging device, second supercharging device, first electromagnetic proportion relief valve, second electromagnetic proportion relief valve, first fluid heater, second fluid heater;
Plate is between said die and said blank holder; Said die inside is provided with the die cavity; The die bottom is provided with liquid injection hole; Said liquid injection hole is communicated with said die cavity, the liquid injection hole external port is connected with the high-pressure side of said first supercharging device; The first supercharging device high-pressure side is connected with said first fluid heater through check valve, high-temperature pump simultaneously, and the first supercharging device low-pressure end is connected with said first electromagnetic proportion relief valve; Said blank holder is arranged on the said die through sealing ring; The blank holder bottom is provided with the blank holder cavity; The blank holder side is provided with liquid injection hole; Said liquid injection hole is communicated with said blank holder cavity, and the liquid injection hole external port is connected with the high-pressure side of said second supercharging device, and the second supercharging device high-pressure side is connected with said second fluid heater through check valve, high-temperature pump simultaneously; The low-pressure end of second supercharging device is connected with said second electromagnetic proportion relief valve; One end of said punch is positioned in the middle of the said blank holder.
Further, said blank holder cavity forms a closed cavity on said die and plate.
Further, be hollow structure in the middle of the said blank holder, coaxial with said die cavity.
Further, said first fluid heater, second fluid heater provide heat-resisting fluid media (medium) in said die cavity, said blank holder cavity, and said heat-resisting fluid media (medium) is heat resistant oils, gas, low-melting-point metal or high temperature resistant powder.
Further, be provided with electric heating unit in said first fluid heater, second fluid heater to said heat-resisting fluid media (medium) heating, said heating unit is heating tube, heater strip or other heating element heaters.
Further, described first fluid heater, second fluid heater are control heating separately separately.
Further, said punch inside is provided with cooling water channel.
Further, said sealing ring is the high temperature high voltage resistant sealing ring and is arranged on the said die.
Further, described first supercharging device, second supercharging device all are a kind of piston super chargers.
A kind of differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging provided by the invention; Reduced the frictional force between plate and mould through the hydraulic pressure flanging; Apply radial thrust through the thickness of slab direction; Significantly promote material to flow and heat-resisting fluid medium pressure applies and above-mentioned attainable temperature-differential forming, effectively realized greatly to improve the combined shaping of the sheet material differential temperature topping up of the sheet material forming limit, given full play to the crystallized ability of sheet material; The Integratively that can realize difficult moulding material complex parts is shaped, thereby can promote the expanding application of novel difficult moulding material.
Description of drawings
Fig. 1 is realizing of providing of the embodiment of the invention sheet material differential temperature liquid-filling shaping device sketch map with the hydraulic pressure flanging that radially pressurizes.
Fig. 2 is realizing of providing of the embodiment of the invention shaping starting stage sketch map with the sheet material differential temperature liquid-filling shaping device of hydraulic pressure flanging that radially pressurizes.
The enlarged diagram at A place among Fig. 1 that Fig. 3 provides for the embodiment of the invention.
The specific embodiment
Referring to Fig. 1; The embodiment of the invention provides a kind of sheet material differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging comprises: punch 18, blank holder 15, die 7, first supercharging device 2, second supercharging device 11, first electromagnetic proportion relief valve 1, the second solenoid-operated proportional overflow 10, first fluid heater 5 and second fluid heating, 14 devices.
Wherein, blank holder cavity 17 forms a closed cavity on die 7 and plate 20.
Wherein, be hollow structure in the middle of the blank holder 15, coaxial with die cavity 8.
Wherein, first fluid heater 5, second fluid heater 14 provide heat-resisting fluid media (medium) in said die cavity 8, said blank holder cavity 17, and heat-resisting fluid media (medium) is heat resistant oils, gas, low-melting-point metal or high temperature resistant powder.
Wherein, be provided with electric heating unit in first fluid heater 5, second fluid heater 14 to said heat-resisting fluid media (medium) heating, heating unit is heating tube, heater strip or other heating element heaters.
Wherein, first fluid heater 5, second fluid heater 14 are control heating separately separately.
Wherein, punch 18 inside are provided with cooling water channel 19.
Wherein, sealing ring 9 is the high temperature high voltage resistant sealing ring and is arranged on the said die 7.
Wherein, first supercharging device 2, second supercharging device 11 all are a kind of piston super chargers.
Heat-resisting fluid media (medium) is in second fluid heater 14, to heat through heating unit earlier in the blank holder cavity 17; Reach behind the design temperature high-pressure side that injects second supercharging device 11 through high-temperature pump 13, check valve 12; Through the pressurization control of carrying out of second supercharging device 11 and first electromagnetic proportion relief valve 10, be filled in the blank holder cavity 17 again through liquid injection hole 16.
Heat-resisting fluid media (medium) is in first fluid heater 5, to heat through heating unit earlier in the die cavity 8; Reach behind the design temperature high-pressure side that injects first supercharging device 2 through high-temperature pump 4, check valve 3; Through the pressurization control of carrying out of first supercharging device 2 and first electromagnetic proportion relief valve 1, be filled in the die cavity 8 again through liquid injection hole 6.
A kind of differential temperature liquid-filling shaping device with the hydraulic pressure flanging concrete processing step when sheet forming of realizing radially pressurizeing provided by the invention is following:
(1), open the first fluid heater 5 and second fluid heater 14, respectively the heating unit of the heat-resisting fluid media (medium) of these two parts through separately is heated to the temperature of setting separately, and the insulation regular hour;
(2), the fluid media (medium)s that will arrive in the first fluid heater 5 of design temperature inject the high-pressure side of first supercharging device 2 through high-temperature pump 4 and check valve 3, injection finishes, and closes high-temperature pump 4 and check valve 3 simultaneously;
(3), open first supercharging device 2, control first electromagnetic proportion relief valve 1 heat-resisting fluid media (medium) be filled in the die cavity 8 through liquid injection hole 6, when heat-resisting fluid media (medium) surface is concordant with die 7 die orifices, stop injection;
(4), place plate 20 on die 7 surfaces;
(5), control blank holder 15 comes downwards to plate 20 and contacts; And defeat plate 20 a little; Second fluid heater, the 14 interior fluid media (medium)s that will arrive design temperature simultaneously inject the high-pressure side of second supercharging device 11 through high-temperature pump 13 and check valve 12; Injection finishes, and closes high-temperature pump 13 and check valve 12 simultaneously;
(6), open second supercharging device 11, heat-resisting fluid media (medium) is filled in the closed cavity that blank holder cavity 17 and die 7 and plate 20 form through liquid injection hole 16.
(7), heat-resisting fluid media (medium) pressurize certain hour in the blank holder cavity 17, simultaneously, through the heat-resisting fluid media (medium)s in heat-resisting fluid media (medium) in the blank holder cavity 17 and the die cavity 8 sheet material is heated, until required temperature;
(8), control punch 18 is descending, simultaneously recirculated cooling water injected cooling water channel 19, when punch 18 comes downwards to a certain ad-hoc location of plate upper surface; Punch 18 stops descending, and the heat-resisting fluid media (medium) in the die cavity 8 is implemented supercharging through first supercharging device 2 and first electromagnetic proportion relief valve 1, is pressurized to a certain setting value; It is constant to keep-up pressure, and realizes initial anti-expanding, as shown in Figure 2; Initial anti-expanding can be set up liquid chamber pressure at the shaping initial stage; Change the stress state of punch 18 fillet place blanks, form well that friction keeps effect, thus the generation that the initial stage sheet material of avoiding being shaped breaks;
When (9), arriving setting-up time when initially instead expanding; Punch 18 is descending, simultaneously through first electromagnetic proportion relief valve 1, second electromagnetic proportion relief valve 10, and the hydraulic system of blank holder 15; Displacement according to punch 18; The pressure of heat-resisting fluid media (medium) in heat-resisting fluid media (medium) and the blank holder cavity 17 in the real-time regulated die cavity 8, and the pressure of blank holder 15 are over until shaping; Heat-resisting fluid media (medium) is applying radial thrust, on the vertical direction of plate 20 flanges, is applying the hydraulic pressure pressure-pad-force, like P among Fig. 1 and Fig. 3 plate 20 on the thickness of slab direction in this forming process
1Shown in, realized that hydraulic pressure flanging and sheet feeding drive are to the pressurization feed supplement;
(10), with in the blank holder cavity 17 and the heat-resisting fluid media (medium) pressure release of heat-resisting fluid media (medium) in the die cavity 8, punch 18 is up with blank holder 15, takes out part, machines.
The present invention's sheet material differential temperature liquid-filling shaping device with the hydraulic pressure flanging of can realizing radially pressurizeing; In forming process since the plate different parts respectively with punch 18, blank holder cavity 17 in heat-resisting fluid media (medium); And the heat-resisting fluid media (medium) contact in the die cavity 8; Because of being connected with cooling water in the punch 18, be connected with the heat-resisting fluid media (medium) of different temperatures in the blank holder cavity 17 and in the die cavity 8 respectively, therefore the plate different at different position and different can realize the different temperature Gradient distribution in the process of sheet material forming; Can realize temperature-differential forming, improve forming limit.
The embodiment of the invention provides, and a kind of sheet material differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging has the following advantages:
1, realizes the hydraulic pressure flanging through the heat-resisting fluid media (medium) in the blank holder cavity, can significantly reduce the frictional force between plate and mould, improve the sheet material forming performance, reduce equipment tonnage, improve die life.
2, realize radial thrust through the heat-resisting fluid media (medium) in the blank holder cavity in the thickness of slab direction; Promote sheet material to flow, can greatly improve the sheet material forming performance, can realize the once-forming of complex thin-wall component; Avoided the annealing between multi-pass shaping and passage; Save die cost, improved production efficiency, reduced production cost.
3, through being connected with heat-resisting fluid media (medium) in cooling water, the blank holder cavity in the punch cooling water channel; And the heat-resisting fluid media (medium) in the die cavity can be controlled different temperature respectively; The plate different at different position and different can realize the different temperature Gradient distribution in the process of sheet material forming; Can realize temperature-differential forming, improve forming limit.
4, can realize the combined shaping of sheet material differential temperature topping up, give full play to the crystallized ability of sheet material, promote the expanding application of new material.
5, the pressure of heat-resisting fluid media (medium) in the blank holder cavity and the heat-resisting fluid media (medium) in the die cavity can be controlled through electromagnetic proportion relief valve in real time, can conveniently realize the real-time control of pressure variable edge force control and hydraulic pressure.
6, heat-resisting fluid media (medium) is to heat through the outside fluid heater of mould, like this than only depending on the electric heating element on the mould to heat, and high many of efficient, and energy loss is few, and temperature control is accurately.
7, heat-resisting fluid media (medium) is to heat through the outside fluid heater of mould, and the heating of forming process and follow-up required heat-resisting fluid media (medium) and insulation can be carried out respectively simultaneously, have improved operating efficiency.
8, can realize the application of kinds of processes such as sheet material liquid-filling shaping under sheet material liquid-filling shaping, the high temperature under the normal temperature.
It should be noted last that; The above specific embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to instance the present invention is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention; And not breaking away from the spirit and the scope of technical scheme of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1. the sheet material differential temperature liquid-filling shaping device that can realize radially pressurizeing with the hydraulic pressure flanging; It is characterized in that, comprising: punch, blank holder, die, first supercharging device, second supercharging device, first electromagnetic proportion relief valve, second electromagnetic proportion relief valve, first fluid heater and second fluid heater;
Plate is between said blank holder and said die; Said die inside is provided with the die cavity; The die bottom is provided with liquid injection hole; Said liquid injection hole is communicated with said die cavity, the liquid injection hole external port is connected with the high-pressure side of said first supercharging device; The first supercharging device high-pressure side is connected with said first fluid heater through check valve, high-temperature pump simultaneously, and the first supercharging device low-pressure end is connected with said first electromagnetic proportion relief valve; Said blank holder is arranged on the said die through sealing ring; The blank holder bottom is provided with the blank holder cavity; The blank holder side is provided with liquid injection hole; Said liquid injection hole is communicated with said blank holder cavity, the liquid injection hole external port is connected with the high-pressure side of said second supercharging device, and the second supercharging device high-pressure side is connected with said second fluid heater through check valve, high-temperature pump simultaneously; The low-pressure end of second supercharging device is connected with said second electromagnetic proportion relief valve; One end of said punch is positioned in the middle of the said blank holder.
2. the sheet material differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging according to claim 1 is characterized in that:
Said blank holder cavity forms a closed cavity on said die and plate.
3. the sheet material differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging according to claim 2 is characterized in that:
In the middle of the said blank holder is hollow structure, coaxial with said die cavity.
4. the sheet material differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging according to claim 3 is characterized in that:
Said first fluid heater, second fluid heater provide heat-resisting fluid media (medium) in said die cavity, said blank holder cavity, said heat-resisting fluid media (medium) is heat resistant oils, gas, low-melting-point metal or high temperature resistant powder.
5. a kind of sheet material differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging according to claim 4 is characterized in that:
Be provided with electric heating unit in said first fluid heater, second fluid heater to said heat-resisting fluid media (medium) heating, said heating unit is heating tube, heater strip or other heating element heaters.
6. a kind of sheet material differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging according to claim 5 is characterized in that:
Described first fluid heater, second fluid heater are control heating separately separately.
7. the sheet material differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging according to claim 1 is characterized in that:
Said punch inside is provided with cooling water channel.
8. the sheet material differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging according to claim 1 is characterized in that:
Said sealing ring is the high temperature high voltage resistant sealing ring and is arranged on the said die.
9. the sheet material differential temperature liquid-filling shaping device of realizing radially pressurizeing with the hydraulic pressure flanging according to claim 1 is characterized in that:
Described first supercharging device, second supercharging device all are a kind of piston super chargers.
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| CN201210094347.8A CN102632125B (en) | 2012-04-01 | 2012-04-01 | Plate differential temperature hydroforming device capable of realizing radial pressurizing and hydraulic blank pressing |
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| CN201210094347.8A CN102632125B (en) | 2012-04-01 | 2012-04-01 | Plate differential temperature hydroforming device capable of realizing radial pressurizing and hydraulic blank pressing |
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| CN102632125B CN102632125B (en) | 2014-09-17 |
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Cited By (12)
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| CN102847773A (en) * | 2012-09-07 | 2013-01-02 | 胡旭 | Frame longitudinal head forming method |
| CN103191971A (en) * | 2013-04-01 | 2013-07-10 | 哈尔滨工业大学 | Electromagnetism-assisted forming device and method for dissimilar metal composite boards |
| CN105328003A (en) * | 2015-12-08 | 2016-02-17 | 吉林大学 | Cryogenic stamping, shearing and forming device with terrace die for micro workpieces and forming method using cryogenic stamping, shearing and forming device |
| CN105382091A (en) * | 2015-12-08 | 2016-03-09 | 吉林大学 | Deep-cooling punching-shearing forming device for blank holder of micro-miniature workpiece and forming method thereof |
| CN107175295A (en) * | 2017-07-07 | 2017-09-19 | 天津航天长征火箭制造有限公司 | A kind of 3350mm grades of ellipsoid melon valve liquid-filling shaping technique and its mould |
| CN109834152A (en) * | 2019-03-13 | 2019-06-04 | 中南大学 | A kind of anti-inflation drawing forming method of plate electromagnetic force and forming device |
| CN109967588A (en) * | 2019-04-12 | 2019-07-05 | 北京卫星制造厂有限公司 | A kind of thick welding sheet hydroforming method of aluminium alloy difference |
| CN110238260A (en) * | 2019-05-17 | 2019-09-17 | 长沙理工大学 | A kind of sheet metal multistage cylinder drawing and forming device and technique |
| CN110871578A (en) * | 2019-11-22 | 2020-03-10 | 北京航空航天大学 | Integrated process for preparing and forming fiber metal laminate based on liquid filling forming |
| CN112246949A (en) * | 2020-09-27 | 2021-01-22 | 大连理工大学 | Ultralow-temperature medium pressure forming method for aluminum alloy thin-wall curved surface part |
| CN114801320A (en) * | 2022-05-16 | 2022-07-29 | 山东大学 | Paperboard stamping forming device and method |
| CN115255157A (en) * | 2022-07-21 | 2022-11-01 | 江西追风压缩机有限公司 | Novel compressor housing mold processing |
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| CN102847773A (en) * | 2012-09-07 | 2013-01-02 | 胡旭 | Frame longitudinal head forming method |
| CN102847773B (en) * | 2012-09-07 | 2014-10-15 | 胡旭 | Frame longitudinal head forming method |
| CN103191971A (en) * | 2013-04-01 | 2013-07-10 | 哈尔滨工业大学 | Electromagnetism-assisted forming device and method for dissimilar metal composite boards |
| CN105328003A (en) * | 2015-12-08 | 2016-02-17 | 吉林大学 | Cryogenic stamping, shearing and forming device with terrace die for micro workpieces and forming method using cryogenic stamping, shearing and forming device |
| CN105382091A (en) * | 2015-12-08 | 2016-03-09 | 吉林大学 | Deep-cooling punching-shearing forming device for blank holder of micro-miniature workpiece and forming method thereof |
| CN105382091B (en) * | 2015-12-08 | 2017-06-30 | 吉林大学 | A kind of Micro-parts blank holder deep cooling punching building mortion and its manufacturing process |
| CN107175295A (en) * | 2017-07-07 | 2017-09-19 | 天津航天长征火箭制造有限公司 | A kind of 3350mm grades of ellipsoid melon valve liquid-filling shaping technique and its mould |
| CN109834152B (en) * | 2019-03-13 | 2020-10-27 | 中南大学 | Sheet electromagnetic force reverse-expansion deep drawing forming method and forming device |
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| CN109967588A (en) * | 2019-04-12 | 2019-07-05 | 北京卫星制造厂有限公司 | A kind of thick welding sheet hydroforming method of aluminium alloy difference |
| CN109967588B (en) * | 2019-04-12 | 2020-07-14 | 北京卫星制造厂有限公司 | Liquid filling forming method for aluminum alloy differential thickness tailor-welded blank |
| CN110238260A (en) * | 2019-05-17 | 2019-09-17 | 长沙理工大学 | A kind of sheet metal multistage cylinder drawing and forming device and technique |
| CN110871578A (en) * | 2019-11-22 | 2020-03-10 | 北京航空航天大学 | Integrated process for preparing and forming fiber metal laminate based on liquid filling forming |
| CN112246949A (en) * | 2020-09-27 | 2021-01-22 | 大连理工大学 | Ultralow-temperature medium pressure forming method for aluminum alloy thin-wall curved surface part |
| CN114801320A (en) * | 2022-05-16 | 2022-07-29 | 山东大学 | Paperboard stamping forming device and method |
| CN115255157A (en) * | 2022-07-21 | 2022-11-01 | 江西追风压缩机有限公司 | Novel compressor housing mold processing |
| CN115255157B (en) * | 2022-07-21 | 2024-04-12 | 江西追风压缩机有限公司 | Compressor shell mold processing |
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