CN103586437A - Pressing casting die and pressing casting system comprising the same - Google Patents
Pressing casting die and pressing casting system comprising the same Download PDFInfo
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- CN103586437A CN103586437A CN201310606378.1A CN201310606378A CN103586437A CN 103586437 A CN103586437 A CN 103586437A CN 201310606378 A CN201310606378 A CN 201310606378A CN 103586437 A CN103586437 A CN 103586437A
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Abstract
The invention provides a pressing casting die and a pressing casting system comprising the same and belongs to the technical field of pressing casting. The pressing casting die comprises a valve body and a valve body pipeline. The valve body is used for controlling whether a cavity in the valve body is communicated with the valve body pipeline. A first connector and a second connector are arranged on the valve body pipeline. When the pressing casting die needs to be suitable for an oxygenating pressing casting technology, the first connector is used for controlling the valve body pipeline to be communicated with an oxygenating air way of a pressing casting machine when the valve body is operated to achieve communication of the cavity and the valve body pipeline. When the pressing casting die needs to be suitable for a vacuum pressing casting technology, the second connector is used for controlling the valve body pipeline to be communicated with a vacuum air way of the pressing casting machine when the valve body is operated to achieve communication of the cavity and the valve body pipeline. The pressing casting die is small in size and low in cost, the pressing casting system of the pressing casting die can be used for achieving switching of the two casting pressing technologies quickly and easily, and efficiency is high.
Description
Technical field
The invention belongs to die-casting technique field, relate to a kind of die-casting system that is applicable to the die casting of pore-free die casting technique and vacuum die casting process simultaneously and comprises this die casting.
Background technology
The essence of compression casting (referred to as " die casting ") is under High Pressure, to make liquid state or semi liquid state metal with the die cavity of the speed filling die casting compared with high and at forming under the pressure with solidify and obtain the method for foundry goods.Extrusion process is in casting field extensive use.
In metal alloy (example: aluminium alloy) in press casting procedure, metallic solution injects before mold cavity, in mold cavity, be full of large quantity of air, after metallic solution injects, the injection punch head of die casting machine enters mold cavity process propelling metallic solution, air residual in mold cavity is owing to cannot all discharging and some pick-up metal solution, after metallic solution coagulation forming, air residual is at the inner pore that forms of foundry goods.Because the residual portion of pore quality is loose, destroy die casting quality, affect die casting intensity and mechanical performance.
In industry, for addressing the above problem, when adjusting extrusion process condition, can take some specific process to reduce inside die-casting part pore, wherein conventional method has evacuated die-casting process and pore-free die casting.
Thereby so-called vacuum die casting process is eliminate or significantly reduce the advanced extrusion process that pore in die casting and dissolved gas improve die casting mechanical property and surface quality by extract gas in die casting die cavity in press casting procedure.
Recently, vacuum aluminum alloy die cast be take and extracted gas in die cavity as main, mainly contains two kinds of forms: (1) directly bleeds from mould; (2) put mould bleeds in vacuum tank.
Vacuum die casting process has the following advantages: 1. can eliminate or reduce the pore of inside die-casting part, improve mechanical performance and the surface quality of die casting, improve plating performance; 2. greatly reduce the counter-pressure of die cavity, can use the poor alloy of lower specific pressure and casting character, likely use the foundry goods that small machine die casting is larger; 3. improved filling condition, can the thinner foundry goods of die casting; 4. vacuum die-casting method is compared with common pressure casting method, and production efficiency does not have to decline substantially.
Certainly, the product that the product that vacuum die casting process forms forms with common extrusion process is compared has following characteristics: (1) porosity reduces greatly; (2) hardness of the foundry goods of evacuated die-casting process is high, and microstructure is tiny; (3) mechanical property of vacuum aluminum alloy pressuring casting is higher.
The almag die casting that application vacuum die-casting method is produced has been proved to be manufacturing process such as can adopting welding, heat treatment, normal temperature performance also has a certain upgrade, for example successfully on cold-chamber die casting machine, utilized at present vacuum die-casting method to produce AM60B magnesium alloy auto hub, on the hot chamber machine that is 2940kN in clamp force, utilize vacuum die-casting method to produce AM60B magnesium alloy auto steering wheel, die casting percentage elongation is brought up to more than 16% by 8%.
As long as control is proper, vacuum die casting process bring gratifying improvement can to die casting performance.And the cost that mould sealing causes promotes, along with the universal of technology and cost sharing that mass production brings, can be well solved.With respect to traditional pressure casting method, laminar flow filling method/Ultra-Low Speed casting die production efficiency is lower, and cast gate cleaning difficulty, is difficult to be applied to produce in enormous quantities; Only have vacuum die-casting method, operation is simple, easy to operate, has and common pressure casting method production efficiency about the same, is easy to promote in actual production.So since occurring, vacuum die-casting method just shows powerful vitality, and along with the raising of correlation technique, its application is also more and more extensive.
In addition, so-called pore-free die casting technique, be called for short PF method (Pore-Free Die casting), at injection metallic solution, enter before die cavity, in pressure chamber and die cavity, pass in advance the active gases such as oxygen one class (being not limited to oxygen), thereby replace air or other gas in die cavity; When molten metal filling die cavity, a part of oxygen is discharged by exhaust duct, the oxygen that another part is not discharged in time and the metallic solution generation chemical reaction of injection and produce metal oxide microparticle, and be scattered in foundry goods inside, thus reduced the air content of foundry goods inside.
The foundry goods that the foundry goods that pore-free die casting technique forms forms with common casting die is compared (take aluminum alloy die casting as example) and is had the advantages that casting density is high, air content is little, gate velocity is high.
Current, pore-free die casting technique is mainly applicable to following situation application: (1) has the foundry goods of strict demand to pore or air content; (2) foundry goods that requirement is worked in 200-300 ℃ of environment; (3) require to heat-treat, hardness and intensity are had to the foundry goods of specific (special) requirements.
Therefore pore-free die casting technique can reduce the air content of foundry goods inside effectively, improve the intensity of foundry goods and prevent the distortion in heat treating castings, can stablize and produce in large quantities premium casting.It will be applied even more extensively in the production of Chinese automobile parts and other high-quality foundry goods from now on.
No matter be evacuated die-casting process or pore-free die casting, except die casting machine and relevant bleed, oxygen replenishing equipment, more crucial is exactly the valve body that die casting is used above.Existing valve body can only be realized a kind of extrusion process requirement in evacuated die-casting process or pore-free die casting, and will meet two kinds of technological requirements time, just must have the different valve body of two covers, not only cost rises, and will switch and when different process is produced, need to dismantle die change valve body and cause production efficiency low.
In view of this, be necessary to propose a kind of novel die casting and corresponding die-casting system.
Summary of the invention
The object of the invention is to, proposing does not a kind ofly need to change the die casting of valve body while switching between vacuum die casting process and pore-free die casting technique, and makes die-casting system simultaneous adaptation in vacuum die casting process and pore-free die casting technique.
Another object of the present invention is, reduces the cost of die casting.
An also object of the present invention is, improves the efficiency of Die Casting.
For realizing above object or other objects, the invention provides following technical scheme.
According to an aspect of of the present present invention, a kind of die casting is provided, be wherein formed with die cavity, it comprises valve body and valve body pipeline, described valve body is used for controlling described die cavity and whether described valve body pipeline is connected;
On described valve body pipeline, also dispose the first joint and the second joint;
Wherein, when needs make described die casting be applicable to pore-free die casting technique, described the first joint is connected for control the oxygenation gas circuit of described valve body pipeline and die casting machine when described valve body is operated to realize described die cavity and the connection of described valve body pipeline;
When needs make described die casting be applicable to vacuum die casting process, described the second joint is connected for control the vacuum air-channel of described valve body pipeline and die casting machine when described valve body is operated to realize described die cavity and the connection of described valve body pipeline.
According to the die casting of one embodiment of the invention, wherein, described valve body comprises motion bar and valve body oil cylinder, described valve body oil cylinder operationally drive described motion bar in a predetermined direction back and forth movement so that described valve body is operationally controlled described die cavity and whether described valve body pipeline is connected.
Preferably, described valve body oil cylinder comprises cylinder body and cylinder flange dish; Described cylinder body is by connection and partition between the two drive connectors of reducing and hydraulic quick connector realization and the oil pipe of described die casting machine.
Preferably, described valve body can also comprise: piston rod, the 3rd joint, stroke piece and travel switch;
Described valve body oil cylinder directly drives described piston rod, described piston rod is connected with described motion bar by described the 3rd joint, thereby when described piston rod is being driven directly, promotes described joint and described motion bar synchronous back and forth movement between the primary importance of predetermined direction and the second place; Described joint drives described stroke piece motion, and then drives described travel switch feedback loop output signal to die casting machine;
At described motion bar, move to described primary importance so that described die cavity and described valve body pipeline while connecting, described travel switch feedback output first signal is to control or to indicate the first joint or the second joint to make respectively described oxygenation gas circuit or oxygenation gas circuit and the connection of described die cavity;
At described motion bar, move to the described second place so that described die cavity and described valve body pipeline while disconnecting, described travel switch feedback output secondary signal is to control or to indicate the first joint or the second joint to make respectively described oxygenation gas circuit or oxygenation gas circuit and described die cavity disconnect.
Preferably, described valve body can also comprise travel switch seat, and described travel switch is fixed on described travel switch seat.
Preferably, described valve body can also comprise valve base, contiguous block and mounting blocks.
The die casting of going back an embodiment according to the present invention, wherein, described die casting also comprises the cooling device for the valve base of cooling described valve body.
Preferably, described cooling device comprises cooling jacket, accesses the cooling water pipe of described cooling jacket, cooling water pipe joint, described cooling jacket and described valve base form the airtight water hole of ring-type, and described cooling jacket is realized quick-make and the partition between cooling water pipe and external refrigeration water pipe by described cooling water pipe joint.
According to the die casting of further embodiment of this invention, wherein, described the first joint is pore-free die casting hydraulic quick coupler, and described the second joint is vacuum hydraulic quick coupler;
Wherein, by described vacuum hydraulic quick coupler, realize connection and the partition between described valve body pipeline and described vacuum air-channel, by described PF hydraulic quick coupler, realize connection and the partition between described valve body pipeline and described oxygenation gas circuit.
Preferably, on described valve body pipeline, be provided with for preventing that metal fillings from entering the filter of vacuum air-channel.
According to another aspect of the present invention, a kind of die-casting system that is applicable to vacuum die casting process and pore-free die casting technique, it is characterized in that, comprise die casting machine and the above and any die casting, described die casting machine comprises control module, oxygenation gas circuit and vacuum air-channel;
Wherein, when needs carry out pore-free die casting technique, described control module output first signal is realized described die cavity and is connected and control with described valve body pipeline or indicate described the first joint to realize described valve body pipeline and the connection of described oxygenation gas circuit to control described valve body;
When needs carry out vacuum die casting process, described control module output secondary signal realizes described die cavity and connects and control with described valve body pipeline or indicate described the second joint to realize described valve body pipeline and the connection of described oxygenation gas circuit to control described valve body.
Preferably, described die casting machine also comprises the injection punch head that pushes metallic solution for the die cavity to described die casting, when described injection punch head is pushed into precalculated position described in control module output first signal or secondary signal.
Preferably, at described die cavity during by oxygenation gas circuit gassy, or at described die cavity during by vacuum air-channel vacuum pumping, valve body is to realize described die cavity and described valve body pipeline is disconnected described in described control module output the 3rd signal driver.
Die casting of the present invention and using in the die-casting system of this die casting, realizes the simple switching of two kinds of extrusion processes by a valve body, thereby thereby reduce the space that valve body takies on mould and dwindle die casting volume, reduce the cost of die casting; And, not changing valve body, only select to change connect under the prerequisite of outside different pipelines, realize two kinds of extrusion processes fast, simply switch, efficiency is high.
Accompanying drawing explanation
From following detailed description by reference to the accompanying drawings, will make above and other object of the present invention and advantage more complete clear, wherein, same or analogous key element adopts identical label to represent.
Figure 1 shows that according to the structural representation of the die-casting system of one embodiment of the invention.
Figure 2 shows that the valve body structure schematic diagram according to the die casting of one embodiment of the invention.
The specific embodiment
What introduce below is some in a plurality of possibility embodiment of the present invention, aims to provide basic understanding of the present invention, is not intended to confirm key of the present invention or conclusive key element or limits claimed scope.Easily understand, according to technical scheme of the present invention, do not changing under connotation of the present invention other implementations that one of ordinary skill in the art can propose mutually to replace.Therefore, the following specific embodiment and accompanying drawing are only the exemplary illustrations to technical scheme of the present invention, and should not be considered as of the present invention all or be considered as the restriction of technical solution of the present invention or restriction.
In description below, clear and simple and clear for what describe, all a plurality of parts shown in figure are not described.Shown in the drawings of a plurality of parts, provide the disclosure that can realize completely of the present invention for those of ordinary skills.To those skilled in the art, it is all familiar and obvious being permitted multipart operation.
Figure 1 shows that according to the structural representation of the die-casting system of one embodiment of the invention.As shown in Figure 1, this die-casting system is used die casting machine and die casting equally, die casting is placed on corresponding die casting machine, die casting similarly comprises movable type 150 and fixed 140 two parts, after movable type 150 and fixed 140 matched moulds, in die casting, form die cavity 160, the planform of the foundry goods that the main die casting according to specific needs of concrete structure shape of die cavity 160 forms determines.Die casting also comprises valve body 210 and valve body pipeline 310, and wherein, valve body 210 can be placed between valve body pipeline 310 and die cavity 160, by the back and forth movement of valve body 210, whether can realize connection between valve body pipeline 310 and die cavity 160; Die casting also comprises barrel 130, from barrel 130, gives soup 120 for example, to inject metallic solution (aluminium alloy solution).The injection punch head 110 of die casting machine can be controlled by the control module (not shown) of die casting machine, thereby is pushed into precalculated position at the setting-up time injection punch head of naming a person for a particular job, and to control in die cavity 160, injects metallic solution.Injection punch head 110 can pass through the drivings such as oil cylinder of hydraulic press.For make this die-casting system be applicable to pore-free die casting technique and vacuum die casting process simultaneously, on die casting machine, be provided with oxygenation gas circuit and vacuum air-channel simultaneously, oxygenation gas circuit and vacuum air-channel share a valve body pipeline 310 of die casting.In this embodiment, oxygenation gas circuit comprises oxygenation tracheae 311 and vacuum filling 410, and vacuum air-channel comprises vacuum tracheae 313, vacuum tank 510 and vavuum pump 520; By joint 312, can make valve body tube road 310 select to connect with oxygenation tracheae 311, by joint 314, can make valve body tube road 310 select to connect with vacuum tracheae 313.The signal that the action of joint 312 and joint 314 also can be sent by the control module of die casting machine is controlled (not shown).When whether joint 312 control oxygenation tracheaes 311 are connected with valve body pipeline 310, thereby can pass into oxygen to opening die cavity; When joint 314 is controlled vacuum tracheae 313 with 310 connection of valve body pipeline, and then can extract air to reach the requirement of evacuated die-casting process to the die cavity 160 of opening.Vacuum tank 510 is by vavuum pump 520 extracting airs.It will be appreciated that, the gas holding in oxygen tank 410 is not limited to oxygen, and the operable active gases of pore-free die casting technique can be contained in oxygen tank 410 compressively.
The operation principle of die-casting system of the present invention is described below with reference to the structure of valve body.
Figure 2 shows that the valve body structure schematic diagram according to the die casting of one embodiment of the invention.Valve body shown in Fig. 2 can be used as the valve body 210 shown in Fig. 1, and has schematically provided the valve body pipeline portions of die casting.In this embodiment, contiguous block 1, mounting blocks 2 and valve base 22 form the agent structure of valve body of the present invention; Pipe arrangement 12, abrasion-proof sintering sealing shroud 9, screw 11, liner 8, pad 29 etc. are installed in valve base 22; Contiguous block 1 can form the bosh of sealing together with cooling jacket 23, can also be used to install from moistening anti-wearing liner 10; The inner space of mounting blocks 2 can be for installing stroke piece 24 and joint 30, and it can also be used to fixed oil cylinder body 15; Valve base 22, contiguous block 1 can be used for movable support bar 13 jointly.Cooling jacket in valve body 23 forms the airtight water holes of ring-type with valve base 22, in order to utilize cooling water reduction valve body temperature to avoid valve body to affect normal operation because of expanded by heating when valve body is used; The cooling water pipe 6 arranging in valve body is used for logical cooling water, and wherein cooling water pipe joint 33 is used for realizing quick-make and the partition of cooling water pipe 6 and outside cooling water pipe (for example cooling water pipe of die casting machine); The 0 type circle 27,28 arranging in valve body is arranged between contiguous block 1 and cooling jacket 23, can be used for preventing cooling water leakage.
The power of valve body is provided by cylinder drive, in this embodiment, cylinder body 15 forms cylinder drive (being valve body oil cylinder) with cylinder flange dish 17, when logical oil, can promote piston rod 16 realize advance or backward movement to realize at the back and forth movement of direction as shown in the figure, sealing ring 18,19,20 and 21 can be used for preventing hydraulic fluid leak, and the two drive connectors 5 of reducing and hydraulic quick connector (not shown) are used for making oil pipe quick-make and the partition of oil cylinder and the die casting machine of cylinder body.Therefore, can utilize the hydraulic oil of die casting machine as the power source of valve body.
Whether the joint 30 arranging in valve body is used for connecting piston rod 16 and motion bar 13, so that motion bar 13 can advance by piston rod 30 realizations, backward movement, to need control die cavity and valve body pipeline to be connected according to predetermined.Particularly, abrasion-proof sintering sealing shroud 9, certainly moisten anti-wearing liner 10 and be used for holding motion bar 13, wherein, abrasion-proof sintering sealing shroud 9, from moistening anti-wearing liner 10, the two is separately fixed on valve body 22 and contiguous block 1, during assembling, motion bar 13 is from inserting in the middle of the two, the relative abrasion-proof sintering sealing shroud 9 of motion bar 13 during work, certainly moistens anti-wearing liner 10 and liner 8 moves; Liner 8 can prevent that impurity from entering die cavity inside by the gap between abrasion-proof sintering lining 9 and motion bar 13, and lock screw 11 is used for sealing fixed-bearing 8 with pad 29.
Valve body can also arrange travel switch 3 etc., travel switch 3 can be fixed on travel switch seat 25, stroke piece 24 is connected with joint 30, when joint 30 front and back back and forth movement, joint 30 drives stroke piece 24 front and back to return fortune motion, thereby drive travel switch 3 camming movement below to realize signal output (can export the control module of die casting machine to), thereby the action situation of feedback motion bar 13, determine the open and-shut mode of valve body, drive the holding wire of travel switch 3 to be connected with the neutron information wire of die casting machine.
Continue as shown in Figure 2, the valve body pipeline portions being connected with valve body also partly illustrates in Fig. 2, and valve body pipeline can comprise 90 ° of union elbows 4 and pipe arrangement, and it can connect valve body and vacuum tank or oxygen tank.Preferably, filter is also set on valve body pipeline and enters valve body pipeline to prevent aluminium bits etc.; Particularly, filter can comprise filter head housings 31, strainer cover 32 with and the in-built steel wire lump having 34, steel wire lump 34 can be used for the foreign material such as filtering metal bits and prevent that it from passing through valve body pipeline, and then prevents from entering vacuum air-channel or oxygenation gas circuit.Vacuum hydraulic quick coupler 7 (for example vacuum air valve 314) as shown in Figure 1 can also be set on the end of valve body pipeline and PF hydraulic quick coupler (for example, oxygenation air valve 312), vacuum hydraulic quick coupler 7 can select to realize quick-make and the partition of valve body pipeline and vacuum air-channel; PF hydraulic quick coupler can select to realize quick-make and the dismounting of valve body pipeline and oxygenation gas circuit.
Particularly, because valve body needs to be arranged on die casting in use, valve base 22 sections and die surface fit clearance are extremely important, can finely tune by adjusting the packing ring 26 of valve body.Can connect by hexagon socket head cap screw (not shown) each part of valve body, by alignment pin be used for being located by connecting piece 1 and cooling jacket 23, prevent that it from rotating and affecting cooling water channel circulation.
Specifically, in conjunction with shown in Fig. 1 and Fig. 2, the operation principle of die casting and die-casting system is described.
When carrying out vacuum die casting process, after the movable type 150 and fixed 140 matched moulds of die casting, in charging basket 130, pour aluminium alloy solution into, when injection punch head 110 is propelled forward to precalculated position, the control module of die casting machine is according to pre-set program to joint 314 transmission of signals, and now joint 314 is connected valve body pipeline 310 and vacuum tracheae 313; To valve body 210, transmit control signal, valve body oil cylinder is by fuel feeding simultaneously, thereby promotes motion bar 13 forward travels to the right by piston rod 16; Motion bar 13 moves to behind precalculated position, and the relative valve body pipeline 310 of die cavity 160 is open, and die cavity 160 can be connected with vacuum tank 510 by valve body pipeline 310.Therefore, vacuum tank 510 and vavuum pump 520 start the interior air of die cavity 160 to extract out and make the inner negative pressure of vacuum that forms of die cavity 160.Air pressure at die cavity 160 is reduced to after predetermined value, the control module of die casting machine is sent control signal, vacuum tank 510 and vavuum pump 520 equal vacuum equipment quit work, simultaneously, to the opposite side fuel feeding of valve body oil cylinder and pull motion bar 13 to retreat left by piston rod 16, now die cavity 160 sealings (being that die cavity 160 is disconnected with vacuum air-channel), can not enter valve body pipeline 310 after aluminium alloy solution filling.Therefore, go for vacuum die casting process.
When carrying out pore-free die casting technique, after the movable type 150 and fixed 140 matched moulds of die casting, in charging basket 130, pour aluminium alloy solution into, injection punch head 110 remains on origin position (can make the air in die cavity discharge from inlet orifice), the control module of die casting machine is according to pre-set program to joint 312 transmission of signals, and now joint 312 is connected valve body pipeline 310 and oxygenation tracheae 311; To valve body 210, transmit control signal, valve body oil cylinder is by fuel feeding simultaneously, thereby promotes motion bar 13 forward travels to the right by piston rod 16; Motion bar 13 moves to behind precalculated position, and the relative valve body pipeline 310 of die cavity 160 is open, and die cavity 160 can be connected with oxygenation tank 410 by valve body pipeline 310.Therefore, oxygenation tank 410 starts the enough oxygen of the interior injection of die cavity 160.At die cavity 160, be filled with after gas, the control module of die casting machine is sent control signal, oxygenation tank 410 oxygen replenishing equipments quit work, simultaneously, to the opposite side fuel feeding of valve body oil cylinder and pull motion bar 13 to retreat left by piston rod 16, now die cavity 160 sealings (being that die cavity 160 is disconnected with oxygen gas circuit), can not enter valve body pipeline 310 after aluminium alloy solution filling.Therefore, go for pore-free die casting technique.
The concrete technology step of evacuated die-casting process thereafter or pore-free die casting (for example the action of die casting machine soup ladle is poured alloy solution in charging basket, and injection punch head is propelled alloy solution forward into die cavity and completed an injection circulation) will not repeat one by one.
Therefore, above die casting and using in the die-casting system of this die casting, realizes the simple switching of two kinds of extrusion processes by a valve body, thereby thereby reduce the space that valve body takies on mould and dwindle die casting volume; And, not changing valve body, only select to change connect under the prerequisite of outside different pipelines, realize two kinds of extrusion processes fast, simply switch.
Further, utilize the hydraulic oil that die casting machine provides to do the power source of piston movement and be equipped with power source without the motion that is additionally again the valve body of die casting; Travel switch, the valve body limit switch signal line of valve body design itself are connected with die casting machine neutron signal line, also can facilitate die casting machine.
Further, in press casting procedure, provide signal supply with hydraulic oil and come that application valve body piston and motion bar advance at setting-up time point, backward movement by die casting machine, piston and motion bar transmit feedback signal to die casting machine while arriving precalculated position.Particularly, the structure of stroke piece 24 can be wedge structure, it is connected with motion bar 13 by joint 30, when motion bar 13 drives it to do side-to-side movement, thereby travel switch 3 cam below can move up and down and transmit the signal under different conditions with it, also transmits the open and-shut mode signal of feedback valve body.
Further, itself is designed with cooling circuit valve body, prevents that valve body temperature from raising with mold temperature.
Further, hydraulic oil does not directly act on motion bar, but utilize joint that piston is connected with motion bar, hydraulic oil directly acts on piston, by piston driving motion bar, move to guarantee that motion bar facile motion (easily makes motion bar stuck in motion process owing to making precision problem and the temperature problems such as gap variation that cause that raise, and joint 30 two ends can be for flexibly connecting, can avoid the problem such as stuck to produce).
Further, valve body can be furnished with sealing ring everywhere, prevents hydraulic fluid leak.
Further, valve body pipeline appends filter, prevents that aluminium bits etc. from entering gas piping.
Further, valve body pipeline and oil pipe are used hydraulic quick coupler everywhere, guarantee quick-replaceable and the dismounting of oil pipe and tracheae.
Above example has mainly illustrated die casting of the present invention and has used the die-casting system of this die casting.Although only some of them embodiments of the present invention are described, those of ordinary skills should understand, and the present invention can be within not departing from its purport and scope implements with many other forms.Therefore, the example of showing and embodiment are regarded as illustrative and not restrictive, and in the situation that not departing from spirit of the present invention as defined in appended each claim and scope, the present invention may be contained various modifications and replacement.
Claims (13)
1. a die casting, is wherein formed with die cavity, it is characterized in that, comprises valve body and valve body pipeline, and described valve body is used for controlling described die cavity and whether described valve body pipeline is connected;
On described valve body pipeline, also dispose the first joint and the second joint;
Wherein, when needs make described die casting be applicable to pore-free die casting technique, described the first joint is connected for control the oxygenation gas circuit of described valve body pipeline and die casting machine when described valve body is operated to realize described die cavity and the connection of described valve body pipeline;
When needs make described die casting be applicable to vacuum die casting process, described the second joint is connected for control the vacuum air-channel of described valve body pipeline and die casting machine when described valve body is operated to realize described die cavity and the connection of described valve body pipeline.
2. die casting as claimed in claim 1, it is characterized in that, described valve body comprises motion bar and valve body oil cylinder, described valve body oil cylinder operationally drive described motion bar in a predetermined direction back and forth movement so that described valve body is operationally controlled described die cavity and whether described valve body pipeline is connected.
3. die casting as claimed in claim 2, is characterized in that, described valve body oil cylinder comprises cylinder body and cylinder flange dish; Described cylinder body is by connection and partition between the two drive connectors of reducing and hydraulic quick connector realization and the oil pipe of described die casting machine.
4. die casting as claimed in claim 2, is characterized in that, described valve body comprises: piston rod, the 3rd joint, stroke piece and travel switch;
Described valve body oil cylinder directly drives described piston rod, described piston rod is connected with described motion bar by described the 3rd joint, thereby when described piston rod is being driven directly, promotes described joint and described motion bar synchronous back and forth movement between the primary importance of predetermined direction and the second place; Described joint drives described stroke piece motion, and then drives described travel switch feedback loop output signal to die casting machine;
At described motion bar, move to described primary importance so that described die cavity and described valve body pipeline while connecting, described travel switch feedback output first signal is to control or to indicate the first joint or the second joint to make respectively described oxygenation gas circuit or oxygenation gas circuit and the connection of described die cavity;
At described motion bar, move to the described second place so that described die cavity and described valve body pipeline while disconnecting, described travel switch feedback output secondary signal is to control or to indicate the first joint or the second joint to make respectively described oxygenation gas circuit or oxygenation gas circuit and described die cavity disconnect.
5. die casting as claimed in claim 4, is characterized in that, described valve body comprises travel switch seat, and described travel switch is fixed on described travel switch seat.
6. die casting as claimed in claim 4, is characterized in that, described valve body comprises valve base, contiguous block and mounting blocks.
7. die casting as claimed in claim 1, is characterized in that, described die casting also comprises the cooling device for the valve base of cooling described valve body.
8. die casting as claimed in claim 7, it is characterized in that, described cooling device comprises cooling jacket, accesses the cooling water pipe of described cooling jacket, cooling water pipe joint, described cooling jacket and described valve base form the airtight water hole of ring-type, and described cooling jacket is realized quick-make and the partition between cooling water pipe and external refrigeration water pipe by described cooling water pipe joint.
9. die casting as claimed in claim 1, is characterized in that, described the first joint is pore-free die casting hydraulic quick coupler, and described the second joint is vacuum hydraulic quick coupler;
Wherein, by described vacuum hydraulic quick coupler, realize connection and the partition between described valve body pipeline and described vacuum air-channel, by described PF hydraulic quick coupler, realize connection and the partition between described valve body pipeline and described oxygenation gas circuit.
10. the die casting as described in claim 1 or 9, is characterized in that, is provided with for preventing that metal fillings from entering the filter of vacuum air-channel on described valve body pipeline.
11. 1 kinds of die-casting system that are applicable to vacuum die casting process and pore-free die casting technique, is characterized in that, comprise die casting machine and the die casting as described in any one in claim 1 to 10, and described die casting machine comprises control module, oxygenation gas circuit and vacuum air-channel;
Wherein, when needs carry out pore-free die casting technique, described control module output first signal is realized described die cavity and is connected and control with described valve body pipeline or indicate described the first joint to realize described valve body pipeline and the connection of described oxygenation gas circuit to control described valve body;
When needs carry out vacuum die casting process, described control module output secondary signal realizes described die cavity and connects and control with described valve body pipeline or indicate described the second joint to realize described valve body pipeline and the connection of described oxygenation gas circuit to control described valve body.
12. die-casting system as claimed in claim 11, it is characterized in that, described die casting machine also comprises the injection punch head that pushes metallic solution for the die cavity to described die casting, when described injection punch head is pushed into precalculated position described in control module output first signal or secondary signal.
13. die-casting system as claimed in claim 11, it is characterized in that, at described die cavity during by oxygenation gas circuit gassy, or when the vacuum air-channel vacuum pumping, valve body is to realize described die cavity and described valve body pipeline is disconnected described in described control module output the 3rd signal driver at described die cavity.
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| CN201310606378.1A CN103586437B (en) | 2013-11-26 | 2013-11-26 | Die casting and comprise its die-casting system |
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| CN201310606378.1A CN103586437B (en) | 2013-11-26 | 2013-11-26 | Die casting and comprise its die-casting system |
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| CN103586437A true CN103586437A (en) | 2014-02-19 |
| CN103586437B CN103586437B (en) | 2016-04-06 |
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Cited By (6)
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| CN104368783A (en) * | 2014-10-17 | 2015-02-25 | 烟台三和汽车零部件有限公司 | Pressure casting system and method |
| CN105081262A (en) * | 2015-08-25 | 2015-11-25 | 无锡贺邦金属制品有限公司 | Die-casting forming technology |
| CN105081264A (en) * | 2015-08-25 | 2015-11-25 | 无锡贺邦金属制品有限公司 | Die casting process of horizontal die casting machine |
| CN110465639A (en) * | 2019-09-16 | 2019-11-19 | 姜秀芳 | A kind of hardened structure of composite exhaust for high vacuum casting mould |
| CN112775407A (en) * | 2019-11-05 | 2021-05-11 | 现代自动车株式会社 | Vacuum die casting method and die for vacuum die casting |
| CN113814372A (en) * | 2021-10-15 | 2021-12-21 | 常州艾可特机电科技有限公司 | Vacuum die-casting control method, system and equipment |
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| CN112775407A (en) * | 2019-11-05 | 2021-05-11 | 现代自动车株式会社 | Vacuum die casting method and die for vacuum die casting |
| CN113814372A (en) * | 2021-10-15 | 2021-12-21 | 常州艾可特机电科技有限公司 | Vacuum die-casting control method, system and equipment |
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