CN114603105B - Pneumatic control device of large vacuum pressurizing casting equipment and use method thereof - Google Patents
Pneumatic control device of large vacuum pressurizing casting equipment and use method thereof Download PDFInfo
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- CN114603105B CN114603105B CN202210271581.7A CN202210271581A CN114603105B CN 114603105 B CN114603105 B CN 114603105B CN 202210271581 A CN202210271581 A CN 202210271581A CN 114603105 B CN114603105 B CN 114603105B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2069—Exerting after-pressure on the moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2218—Cooling or heating equipment for dies
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/20—Accessories: Details
- B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
- B22D17/2236—Equipment for loosening or ejecting castings from dies
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Abstract
The invention discloses a pneumatic control device of large-scale vacuum pressurizing casting equipment and a use method thereof, wherein the pneumatic control device comprises the following steps: the assembly mainboard, the top of assembly mainboard is fixed mounting respectively has pneumatic punching press mechanism, cooling body and elevating system, pneumatic punching press mechanism's output fixed mounting has vibration generating mechanism, after the vibration effect in the casting head is continuously conducted into the liquid raw materials, increase the motion rate of liquid raw materials in the mould, and extrude the bubble that generates in the liquid raw materials, along with the vibration effect on casting head surface continuously aggravate, make the liquid raw materials possess ascending potential energy of impact, the bubble in the liquid raw materials can gradually flow to the surface of liquid raw materials under extruded effect this moment, break after bubble and air contact, and volatilize into the mould, prevent the liquid raw materials because of inside bubble is more, the inside more hollow area that produces of work piece after the liquid raw materials cooling, improve the quality that the shaping work piece leaves a factory.
Description
Technical Field
The invention relates to the technical field of pneumatic control casting design equipment, in particular to a pneumatic control device of large-scale vacuum pressurizing casting equipment and a use method thereof.
Background
The pressure casting is a casting method for injecting molten or semi-molten metal into a metal casting mould at high speed and crystallizing under pressure, and is simply referred to as die casting, the pressure casting is a casting method for filling liquid or semi-solid metal or alloy or liquid metal or alloy containing reinforcing phases into a die cavity of a die casting type at high speed under high pressure and solidifying the metal or alloy under pressure to form a casting, the pressure commonly used in die casting is 4-500 MPa, and the filling speed of the metal is 0.5-120 m/s, therefore, the fundamental distinction between the high-pressure and high-speed casting method and other casting methods is also an important characteristic, the selection of the filling speed is determined according to different alloy and casting structural characteristics, generally, for castings with higher requirements on thick walls or internal quality, the lower filling speed and the high pressurizing pressure are selected, and for castings with high requirements on thin walls or surface quality and complex castings, the higher proportion and the high filling speed are selected.
In the prior art, for example, chinese patent numbers: CN 110102745A discloses a booster casting device for alloy steel casting, which comprises a base, one side of vacuum booster casting room is provided with control switch and second motor respectively, just the inboard lower part of vacuum booster casting room is provided with casting die utensil, the inboard upper portion of vacuum booster casting room is provided with the feeder hopper, the lower extreme of feeder hopper is provided with row material pipe, the outside of row material pipe is provided with the lead screw that lead screw and second motor are connected, the outside symmetry of lead screw is provided with the thread bush, every the outside of thread bush all is provided with the connecting rod, two the lower extreme of connecting rod is provided with the casting groove jointly.
However, this patent suffers from the following disadvantages:
in the process of casting a workpiece by adopting pressure, a liquid metal material is poured into a mould, and then a forming casting die head is quickly pressed down into the mould by a pneumatic assembly, wherein in the process, as the liquid metal collides with the casting die head at a high speed and splashes to a certain height, when the liquid metal descends again, part of air in the mould is doped into the liquid material, so that a large amount of bubbles after delivery in the liquid metal are formed, but in the above patent, the whole die casting mode is single, and the doped air in the liquid metal cannot be effectively removed, so that after the workpiece cast at a later stage is cooled and formed, more hollow areas exist in the workpiece.
Therefore, we propose a pneumatic control device of a large vacuum pressurizing casting device and a use method thereof, so as to solve the problems set forth in the above.
Disclosure of Invention
The invention aims to provide a pneumatic control device of large vacuum pressurizing casting equipment and a use method thereof, wherein a vibration generating mechanism connected with a pneumatic stamping mechanism is used for mounting a plurality of cooperative parts in a casting die in a mechanical working mode, stronger vibration is generated in the casting die, the vibration effect is transmitted to liquid metal through the surface of the casting die, finally, liquid materials flow in the die at a high speed, bubbles in the liquid materials are extruded, the bubbles are continuously dispersed, and the problem that the quality of a formed workpiece is poor due to the bubbles in the liquid materials is effectively prevented, so that the problem of the background technology is solved.
In order to achieve the above purpose, the present invention provides the following technical solutions: a pneumatic control device of large vacuum pressurizing casting equipment and a use method thereof comprise the following steps: the device comprises an assembly main board, wherein a pneumatic stamping mechanism, a cooling mechanism and a lifting mechanism are fixedly arranged at the top of the assembly main board respectively, and a vibration generating mechanism is fixedly arranged at the output end of the pneumatic stamping mechanism;
the vibration generating mechanism comprises a top plate, a casting head is fixedly arranged at the bottom of the top plate, an inner ring is fixedly arranged on the inner surface wall of the casting head, a mounting hole is formed in the bottom of the top plate, a servo motor is fixedly arranged at the top of the inner wall of the mounting hole, a limit sleeve is fixedly arranged at the bottom of the servo motor, a transmission rod is fixedly arranged at the output end of the servo motor, a turntable is fixedly sleeved on the outer surface wall of the transmission rod, a plurality of connecting plates are fixedly inserted in the turntable, a plurality of buckles are welded on the inner surface wall of the inner ring, and metal elastic sheets are fixedly arranged on the outer surface wall of the connecting plates.
Preferably, the pneumatic stamping mechanism comprises a reinforcing plate, the reinforcing plate is fixedly installed at the top of the assembly main plate through a set of screws, an L-shaped metal frame is welded at the top of the reinforcing plate, and the top of the top plate is connected with the output end of the pneumatic assembly.
Preferably, a group of support rods are fixedly inserted into the top of the L-shaped metal frame, a grafting plate A is fixedly sleeved between the tops of the support rods, a group of grafting plates B is fixedly sleeved between the bottoms of the support rods, limiting holes are formed in the grafting plates A, L-shaped metal frame and the grafting plates B, the diameter values of the limiting holes are equal, and pneumatic components are fixedly inserted between the inner surface walls of the three limiting holes.
Preferably, the outer surface wall of the pneumatic assembly is fixedly sleeved with an external collar, a plurality of limiting rods are fixedly inserted into the bottom of the external collar, and the bottoms of the limiting rods are fixedly inserted into the top of the L-shaped metal frame.
Preferably, a group of metal rods are fixedly inserted into the top of the assembly main board, and rubber buckles are fixedly sleeved on the outer surface wall of each metal rod.
Preferably, the cooling mechanism comprises a bearing sleeve shell, the bottom of the bearing sleeve shell is movably arranged between the tops of a group of rubber buckles, two condensing pipelines are fixedly arranged at the bottom of the inner wall of the bearing sleeve shell, a junction pipeline is fixedly communicated between the outer surface walls of the two condensing pipelines, a supporting rod is fixedly arranged at the top of the assembly main board, an annular groove is formed in the outer surface wall of the supporting rod, a movable sleeve ring is movably arranged in the annular groove, an extension rod is welded on the outer surface wall of the movable sleeve ring, the outer surface wall of the extension rod is fixedly inserted into the bearing sleeve shell, and a handle is fixedly arranged on one side of the outer wall of the bearing sleeve shell.
Preferably, the outer wall one side welding of assembly mainboard has the external board, the inside fixed mounting of external board has the go-between, the interior table wall fixed of go-between is inserted and is equipped with refrigeration subassembly, the outer wall one side fixed mounting of bearing shell has the hollow case, the outward appearance wall fixed intercommunication of meeting pipeline has a set of transmission pipeline, a set of transmission pipeline's input all runs through the outward appearance wall of bearing shell and hollow case to be linked together with the inside of hollow case, refrigeration subassembly's output fixed intercommunication has the emergence pipeline, the output of emergence pipeline is linked together with the outward appearance wall of hollow case.
Preferably, the lifting mechanism comprises a rectangular groove, the rectangular groove is formed in the bottom of the inner wall of the bearing sleeve, two sliding holes are formed in the bearing sleeve, metal sliding rods are movably inserted in the two sliding holes, an impact plate is fixedly sleeved between the outer surface walls of the metal sliding rods, a pressing rod is fixedly mounted at the bottom of the inner wall of the rectangular groove, and the output end of the pressing rod is fixedly mounted at the bottom of the impact plate
The application method of the pneumatic control device of the large vacuum pressurizing casting equipment comprises the following steps:
step one: the mold liner containing the liquid metal is first placed in the housing shell and the pneumatic assembly is actuated to drive the casting head on the top plate continuously toward the housing shell.
Step two: when the casting pressure head acquires downward power, a strong impact effect is generated when the casting pressure head contacts liquid metal, so that the liquid can splash to a certain height and cover the two sides of the liner, and at the moment, the liquid material can be permeated into the liquid material by a certain cube of air in the falling process.
Step three: the servo motor is started to drive the metal elastic sheet on the connecting plate to rotate at a high speed in the casting head and continuously collide with the surface of the buckle, so that a high vibration effect is generated on the surface of the casting head, and meanwhile, the vibration effect on the surface of the casting head can be continuously diffused into the liquid material, so that the flow rate of the liquid material is improved, and bubbles in the liquid material are extruded.
Step four: when the casting mould reaches a period of time, the refrigerating assembly is started, the refrigerating air flow generated during working of the refrigerating assembly is conveyed through a plurality of pipelines and is conducted into the condensing pipeline, meanwhile, the cold air generated on the surface of the condensing pipeline is continuously emitted into the bearing shell, and a lower-temperature environment is created for the liquid material in the liner
Preferably, in the fourth step: when the cooling of the liquid material is finished, the pneumatic assembly is started again to drive the casting head on the top plate, so that the casting head is separated from the inner container, the stamping rod in the rectangular groove is started, the stamping plate is pushed rapidly, the inner container and the cast workpiece are pushed out of the bearing shell, the handle on the bearing shell is pulled, the direction of the bearing shell is changed by utilizing the movable connectivity between the movable lantern ring and the annular groove, and the inner container and the workpiece are taken out.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, when the casting head is contacted with the liquid metal raw material, a driving part in the mechanism is utilized to generate higher vibration effect on the surface of the casting head, after the vibration effect in the casting head is continuously transmitted into the liquid raw material, the movement rate of the liquid raw material in the die is increased, air bubbles generated in the liquid raw material are extruded, and the liquid raw material has upward impact potential energy along with the continuous aggravation of the vibration effect of the surface of the casting head, at the moment, the air bubbles in the liquid raw material gradually flow to the surface of the liquid raw material under the extrusion effect, and are crushed and volatilized into the die after the air bubbles are contacted, so that the liquid raw material is prevented from generating more hollow areas inside a workpiece after being cooled due to more internal air bubbles, and the delivery quality of a formed workpiece is improved.
2. The invention can artificially produce a cooler environment around the die through the cooling mechanism, and utilize heat conduction among metals to continuously infiltrate the generated cold air into the liquid raw material in the die, thereby accelerating the cooling rate of the liquid raw material and shortening the demolding time of the device.
3. According to the invention, the difficulty of an operator in removing the liner can be reduced through the lifting mechanism, the density of liquid metal is high, the formed workpiece is heavy, the edge of the liner can fully cover the top of the bearing shell, and the pneumatic component in the mechanism is utilized to push the liner out of the bearing shell from the bottom of the liner, so that the edge of the liner is separated from the top of the bearing shell, and the difficulty in manually removing the liner is effectively reduced.
Drawings
FIG. 1 is a perspective view of a front view structure of a pneumatic control device for a large vacuum pressurizing casting apparatus and a method for using the same according to the present invention;
FIG. 2 is an enlarged perspective view of the pneumatic stamping mechanism of the pneumatic control device of the large vacuum pressurizing casting equipment and the use method thereof;
FIG. 3 is an enlarged perspective view of the structure of a vibration generating mechanism of a pneumatic control device for a large vacuum pressurizing casting apparatus and a method for using the same according to the present invention;
FIG. 4 is an enlarged perspective view of the cooling mechanism of the pneumatic control device of the large vacuum pressurizing casting equipment and the using method thereof;
FIG. 5 is a schematic view of a pneumatic control device for a large vacuum pressurizing casting apparatus and a part of the structure of the pneumatic control device in the use method thereof;
FIG. 6 is a schematic diagram of a pneumatic control device for a large vacuum pressurizing casting apparatus and a lifting mechanism structure in a method of using the pneumatic control device;
FIG. 7 is an enlarged perspective view of the pneumatic control device of the large vacuum pressurizing casting equipment and the use method thereof in FIG. 3;
fig. 8 is an enlarged perspective view of a pneumatic control device of a large vacuum pressurizing casting apparatus and a using method thereof according to the present invention, wherein the pneumatic control device is shown in fig. 4 as a structure at B.
In the figure: 1. assembling a main board; 2. a pneumatic stamping mechanism; 201. a reinforcing plate; 202. an L-shaped metal frame; 203. a support rod; 204. grafting plate A; 205. grafting plate B; 206. a pneumatic assembly; 207. an external lantern ring; 208. a limit rod; 3. a vibration generating mechanism; 301. a top plate; 302. a casting head; 303. an inner ring; 304. a servo motor; 305. a limit sleeve; 306. a transmission rod; 307. a turntable; 308. a splice plate; 309. a buckle; 310. a metal spring plate; 4. a cooling mechanism; 401. a bearing shell; 402. a condensing duct; 403. intersecting the pipe; 404. a hollow box; 405. an outer connecting plate; 406. a connecting ring; 407. a refrigeration assembly; 408. generating a pipeline; 409. a transmission pipeline; 5. a lifting mechanism; 501. rectangular grooves; 502. a slide hole; 503. a metal slide bar; 504. an impingement plate; 505. punching a rod; 6. a metal rod; 7. a rubber buckle; 8. a support rod; 9. a movable collar; 10. an extension rod; 11. and (5) a handle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the present invention provides a technical solution: a pneumatic control device of large vacuum pressurizing casting equipment and a use method thereof comprise the following steps: the assembly main board 1, the top of the assembly main board 1 is fixedly provided with a pneumatic punching mechanism 2, a cooling mechanism 4 and a lifting mechanism 5 respectively, and the output end of the pneumatic punching mechanism 2 is fixedly provided with a vibration generating mechanism 3.
According to fig. 3 and 7, the vibration generating mechanism 3 includes a top plate 301, a casting head 302 is fixedly installed at the bottom of the top plate 301, an inner ring 303 is fixedly installed on the inner surface wall of the casting head 302, a mounting hole is formed at the bottom of the top plate 301, a servo motor 304 is fixedly installed at the top of the inner wall of the mounting hole, a limit sleeve 305 is fixedly installed at the bottom of the servo motor 304, a transmission rod 306 is fixedly installed at the output end of the servo motor 304, a turntable 307 is fixedly sleeved on the outer surface wall of the transmission rod 306, a plurality of connecting plates 308 are fixedly inserted in the turntable 307, a plurality of buckles 309 are welded on the inner surface wall of the inner ring 303, metal elastic sheets 310 are fixedly installed on the outer surface walls of the connecting plates 308, after the servo motor 304 is started, the metal elastic sheets 310 on the connecting plates 308 are driven to rotate at a high speed and continuously contact with the buckles 309, so that strong vibration is generated on the surface of the casting head 302, and after the vibration effect is continuously conducted into a liquid raw material, conditions are provided for eliminating bubbles in the liquid raw material.
According to the embodiment shown in fig. 1, the pneumatic stamping mechanism 2 comprises a reinforcing plate 201, the reinforcing plate 201 is fixedly mounted on the top of the assembly main board 1 through a set of screws, an L-shaped metal frame 202 is welded on the top of the reinforcing plate 201, the top of a top plate 301 is connected with the output end of a pneumatic assembly 206, and the strength of connection between the L-shaped metal frame 202 and the top of the assembly main board 1 is reinforced through the reinforcing plate 201, so that the device is prevented from breaking during working.
According to the illustration of fig. 2, a group of support rods 203 are fixedly inserted into the top of the L-shaped metal frame 202, a grafting plate A204 is fixedly sleeved between the tops of the group of support rods 203, a grafting plate B205 is fixedly sleeved between the bottoms of the group of support rods 203, limiting holes are formed in the grafting plate A204, the L-shaped metal frame 202 and the grafting plate B205, the diameter values of the limiting holes are equal, a pneumatic assembly 206 is fixedly inserted between the inner surface walls of the three limiting holes, transverse shaking generated when the pneumatic assembly 206 works is effectively limited by the aid of the three limiting holes, and stability of the pneumatic assembly 206 in working is improved.
According to the figure 2, the outer surface wall of the pneumatic assembly 206 is fixedly sleeved with an external collar 207, a plurality of limiting rods 208 are fixedly inserted into the bottom of the external collar 207, the bottoms of the limiting rods 208 are fixedly inserted into the top of the L-shaped metal frame 202, and the external collar 207 and the limiting rods 208 are arranged to effectively limit longitudinal shaking generated when the external collar 207 works, so that the stability of the external collar 207 is further improved when the external collar 207 works.
According to the illustration of fig. 5, a group of metal rods 6 are fixedly inserted into the top of the assembly main board 1, and the outer surface wall of each metal rod 6 is fixedly sleeved with a rubber buckle 7, so that the support condition is provided when the rubber buckle 7 is used for casting the bearing casing 401, and meanwhile, the friction effect generated by rubber products is utilized, so that the bearing casing 401 made of metal materials is prevented from being deviated.
According to the illustration shown in fig. 8, the cooling mechanism 4 comprises a bearing shell 401, the bottom of the bearing shell 401 is movably arranged between the tops of a group of rubber buckles 7, two condensation pipelines 402 are fixedly arranged at the bottom of the inner wall of the bearing shell 401, a junction pipeline 403 is fixedly communicated between the outer surface walls of the two condensation pipelines 402, a supporting rod 8 is fixedly arranged at the top of the assembly main board 1, a ring groove is formed in the outer surface wall of the supporting rod 8, a movable sleeve ring 9 is movably arranged in the ring groove, an extension rod 10 is welded on the outer surface wall of the movable sleeve ring 9, the outer surface wall of the extension rod 10 is fixedly inserted in the bearing shell 401, a handle 11 is fixedly arranged on one side of the outer wall of the bearing shell 401, and the angle of the bearing shell 401 can be quickly changed by pulling the handle 11 through the movable connectivity between the ring groove and the movable sleeve ring 9.
According to the embodiment shown in fig. 4, an external plate 405 is welded on one side of the outer wall of the assembly main board 1, a connecting ring 406 is fixedly installed inside the external plate 405, a refrigerating assembly 407 is fixedly inserted into the inner surface wall of the connecting ring 406, a hollow box 404 is fixedly installed on one side of the outer wall of the bearing shell 401, a group of transmission pipelines 409 are fixedly communicated with the outer surface wall of the junction pipeline 403, the input ends of the group of transmission pipelines 409 penetrate through the outer surface walls of the bearing shell 401 and the hollow box 404 and are communicated with the inside of the hollow box 404, a generating pipeline 408 is fixedly communicated with the output end of the refrigerating assembly 407, the output end of the generating pipeline 408 is communicated with the outer surface wall of the hollow box 404, and cold air generated in the refrigerating assembly 407 can be quickly conveyed into the condensing pipeline 402 by arranging a plurality of transmission pipelines, and a cooler cooling environment is constructed in the bearing shell 401, so as to provide conditions for accelerating the cooling of liquid raw materials.
According to the illustration shown in fig. 6, the lifting mechanism 5 comprises a rectangular groove 501, the rectangular groove 501 is formed in the bottom of the inner wall of the bearing shell 401, two slide holes 502 are formed in the bearing shell 401, metal slide rods 503 are movably inserted in the two slide holes 502, an impact plate 504 is fixedly sleeved between the outer surface walls of the two metal slide rods 503, a pressing rod 505 is fixedly mounted at the bottom of the inner wall of the rectangular groove 501, the output end of the pressing rod 505 is fixedly mounted at the bottom of the impact plate 504, the pressing rod 505 is arranged to rapidly push the impact plate 504 after liquid raw materials are cooled, the liner is separated from the bearing shell 401, and the difficulty of manual dismantling is low.
The effect that its a plurality of mechanisms reach is: firstly, the device is moved to a designated working area, an independent inner container is placed into a bearing shell 401, then liquid metal is quickly poured into the inner container, a pneumatic component 206 on an L-shaped metal frame 202 is started, a casting head 302 on a top plate 301 is driven to continuously move towards the inner container, finally liquid raw materials in the inner container are extruded, most of the area is contacted with the liquid raw materials, a servo motor 304 is started at the moment, under the transmission of power by a transmission rod 306, a plurality of connecting plates 308 on a rotary table 307 are driven to rotate at a high speed, at the moment, metal spring plates 310 on the connecting plates 308 continuously contact with a buckle 309, a stronger vibration effect is generated on the surface of the casting head 302, after the bubble treatment in the liquid raw materials is completed, a refrigerating component 407 in a connecting ring 406 is started, cold air generated by the refrigerating component is quickly gathered into a hollow box 404 through the transportation of a generating pipeline 408, then the cold air is conveyed into the condensing pipeline 402 by a pipeline 403 and a conveying pipeline 409, the cold air is continuously conveyed into the condensing pipeline 402, a cold air is prepared in the bearing shell 401, and the cold air is cooled in the intersecting environment is accelerated.
The invention also provides a use method of the pneumatic control device of the large vacuum pressurizing casting equipment, which comprises the following steps: step one: first, a mold liner containing liquid metal is placed in the housing shell 401 and the pneumatic assembly 206 is activated to move the casting head 302 on the top plate 301 continuously toward the housing shell 401.
Step two: when the casting head 302 acquires downward power, a strong impact effect is generated when the casting head contacts the liquid metal, so that the liquid can splash to a certain height and cover the two sides of the liner, and at the moment, a certain cube of air permeates into the liquid material in the falling process of the liquid material.
Step three: the servo motor 304 is started to drive the metal spring plate 310 on the connecting plate 308 to rotate at a high speed in the casting head 302 and continuously collide with the surface of the buckle 309, so that a high vibration effect is generated on the surface of the casting head 302, and meanwhile, the vibration effect on the surface of the casting head 302 can be continuously diffused into the liquid material, so that the flow rate of the liquid material is improved, and bubbles in the liquid material are extruded.
Step four: when the mold reaches a certain period of time, the refrigeration assembly 407 is started, and the refrigerating airflow generated during working is conveyed through a plurality of pipelines and is conducted into the condensation pipeline 402, and meanwhile, the cold air generated on the surface of the condensation pipeline 402 is continuously emitted into the bearing shell 401, so that a low-temperature environment is created for the liquid material in the liner.
The use method of the pneumatic control device of the large vacuum pressurizing casting equipment is approximately the same as that of the pneumatic control device of the large vacuum pressurizing casting equipment, and the main distinguishing characteristics are as follows: when the cooling of the liquid material is completed, the pneumatic assembly 206 is started again to drive the casting head 302 on the top plate 301, so that the casting head 302 is separated from the liner, the stamping rod 505 in the rectangular groove 501 is started, the impact plate 504 is pushed rapidly, the liner and the cast workpiece are pushed out of the bearing shell 401, the handle 11 on the bearing shell 401 is pulled, the direction of the bearing shell 401 is changed by utilizing the movable connectivity between the movable lantern ring 9 and the annular groove, and the liner and the workpiece are taken out.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (4)
1. The utility model provides a large-scale vacuum booster casting equipment pneumatic control device which characterized in that: comprising the following steps: the device comprises an assembly main board (1), wherein a pneumatic stamping mechanism (2), a cooling mechanism (4) and a lifting mechanism (5) are respectively and fixedly arranged at the top of the assembly main board (1), and a vibration generating mechanism (3) is fixedly arranged at the output end of the pneumatic stamping mechanism (2);
the vibration generating mechanism (3) comprises a top plate (301), the top plate (301) is fixedly arranged at the top of the assembly main board (1) through a group of screws, a casting head (302) is fixedly arranged at the bottom of the top plate (301), an inner ring (303) is fixedly arranged on the inner surface wall of the casting head (302), a mounting hole is formed in the bottom of the top plate (301), a servo motor (304) is fixedly arranged at the top of the inner wall of the mounting hole, a limit sleeve (305) is fixedly arranged at the bottom of the servo motor (304), a transmission rod (306) is fixedly arranged at the output end of the servo motor (304), a turntable (307) is fixedly sleeved on the outer surface wall of the transmission rod (306), a plurality of connecting plates (308) are fixedly inserted into the turntable (307), a plurality of buckles (309) are welded on the inner surface wall of the inner ring (303), a plurality of outer surface walls of the connecting plates (308) are fixedly provided with metal elastic pieces (310), the pneumatic stamping mechanism (2) comprises a reinforcing plate (201), the reinforcing plate (201) is fixedly arranged at the top of the metal frame (201) through a group of screws, the top plate (201) is fixedly arranged at the top of the assembly main board (1), and the top of the top plate (201) is connected with the top plate (201) through the metal frame (202), a group of support rods (203) are fixedly inserted at the top of the L-shaped metal frame (202), a group of grafting plates A (204) are fixedly sleeved between the tops of the support rods (203), a group of grafting plates B (205) are fixedly sleeved between the bottoms of the support rods (203), limit holes are formed in the grafting plates A (204), the L-shaped metal frame (202) and the inside of the grafting plates B (205), the diameter values of all the limit holes are equal, a pneumatic assembly (206) is fixedly inserted between the inner surface walls of the three limit holes, a group of metal rods (6) are fixedly inserted at the top of the assembly main board (1), rubber is fixedly sleeved on the outer surface wall of each metal rod (6), the cooling mechanism (4) comprises a bearing sleeve (401), the bottom of the bearing sleeve (401) is movably arranged between the tops of a group of rubber buckles (7), two condensation pipelines (402) are fixedly arranged at the bottom of the inner wall of the bearing sleeve (401), a ring groove (9) is fixedly connected between the outer surface walls of the two condensation pipelines (402), a ring groove (8) is formed in the outer surface of the assembly main board (1), an annular groove (9) is formed in the outer surface of the assembly main board (8), the external surface wall of the extension rod (10) is fixedly inserted into the interior of the bearing sleeve (401), a handle (11) is fixedly installed on one side of the outer wall of the bearing sleeve (401), an external connection plate (405) is welded on one side of the outer wall of the assembly main board (1), a connecting ring (406) is fixedly installed inside the external connection plate (405), a refrigerating component (407) is fixedly inserted into the inner surface wall of the connecting ring (406), a hollow box (404) is fixedly installed on one side of the outer wall of the bearing sleeve (401), a group of transmission pipelines (409) are fixedly communicated with the external surface wall of the bearing sleeve (403), the input ends of the transmission pipelines (409) penetrate through the external surface walls of the bearing sleeve (401) and the hollow box (404) and are communicated with the interior of the hollow box (404), the output end of the refrigerating component (407) is fixedly communicated with a generating pipeline (408), the output end of the generating pipeline (408) is communicated with the wall of the hollow box (404), the lifting mechanism (5) comprises a rectangular groove (501), a slide bar (503) is arranged at the inner surface of the bearing sleeve (401), two slide bars (502) are arranged inside the two slide holes (502) and the slide bar (502) are arranged inside the two slide bars (401), an impact plate (504) is fixedly sleeved between the outer surface walls of the two metal sliding rods (503), a punching rod (505) is fixedly installed at the bottom of the inner wall of the rectangular groove (501), and the output end of the punching rod (505) is fixedly installed at the bottom of the impact plate (504).
2. The pneumatic control device of the large vacuum pressurizing casting equipment and the use method thereof according to claim 1, wherein the pneumatic control device is characterized in that: the outer surface wall of the pneumatic assembly (206) is fixedly sleeved with an external collar (207), a plurality of limiting rods (208) are fixedly inserted into the bottom of the external collar (207), and the bottoms of the limiting rods (208) are fixedly inserted into the top of the L-shaped metal frame (202).
3. The application method of the pneumatic control device of the large vacuum pressurizing casting equipment is characterized by comprising the following steps of: use of a pneumatic control device of a large vacuum booster casting apparatus according to any one of claims 1-2, comprising the steps of:
s1: firstly, placing a die liner filled with liquid metal in a bearing shell (401), and starting a pneumatic assembly (206) to drive a casting head (302) on a top plate (301) to continuously move towards the bearing shell (401);
s2: when the casting pressure head (302) acquires downward power, a strong impact effect is generated when the casting pressure head contacts liquid metal, so that the liquid can splash to a certain height and cover towards two sides of the liner, and at the moment, a certain cube of air permeates into the liquid material in the falling process of the liquid material;
s3: starting a servo motor (304) to drive a metal elastic sheet (310) on a joint plate (308) to rotate at a high speed in a casting head (302) and continuously collide with the surface of a buckle (309), so that a higher vibration effect is generated on the surface of the casting head (302), and meanwhile, the vibration effect on the surface of the casting head (302) can be continuously diffused into a liquid material, so that the flow rate of the liquid material is improved, and bubbles in the liquid material are extruded;
s4: when the casting mould reaches a period of time, the refrigerating component (407) is started, the refrigerating airflow generated during working is conveyed through a plurality of pipelines and is conducted into the condensing pipeline (402), meanwhile, the cold air generated on the surface of the condensing pipeline (402) is continuously emitted into the bearing shell (401), and a lower-temperature environment is created for the liquid material in the liner.
4. The method for using the pneumatic control device of the large vacuum pressurizing casting equipment according to claim 3, wherein the method comprises the following steps: in the S4: when the cooling of the liquid material is finished, the pneumatic assembly (206) is started again to drive the casting head (302) on the top plate (301), so that the casting head (302) is separated from the liner, the stamping rod (505) in the rectangular groove (501) is started, the impact plate (504) is pushed rapidly, the liner and the cast workpiece are pushed away from the bearing sleeve (401), the handle (11) on the bearing sleeve (401) is pulled, the direction of the bearing sleeve (401) is changed by utilizing the movable connectivity between the movable lantern ring (9) and the annular groove, and the liner and the workpiece are taken out.
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| CN202210271581.7A CN114603105B (en) | 2022-03-18 | 2022-03-18 | Pneumatic control device of large vacuum pressurizing casting equipment and use method thereof |
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| CN114950848B (en) * | 2022-06-20 | 2023-09-26 | 云南万融实业集团有限公司 | Anti-damage color compensation method and device for preparing immortalized flowers |
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| CN115156511A (en) * | 2022-09-07 | 2022-10-11 | 苏州圣亚精密机械有限公司 | Metal part casting device capable of reducing bubble amount |
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| JPH1147887A (en) * | 1997-07-24 | 1999-02-23 | Nikko Kinzoku Kk | Mold for continuous casting |
| CN205218002U (en) * | 2015-10-19 | 2016-05-11 | 河南正旭科技股份有限公司 | Vertical double teeming mouth aluminum alloy vacuum pressure boost casting cabin |
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