CN113798472B

CN113798472B - Machine part casting forming device and process thereof

Info

Publication number: CN113798472B
Application number: CN202111093413.5A
Authority: CN
Inventors: 李琦
Original assignee: Dalian Kunlong Casting Co ltd
Current assignee: Dalian Kunlong Casting Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2023-03-28
Anticipated expiration: 2041-09-17
Also published as: CN113798472A

Abstract

The invention discloses a machine part casting forming device and a machine part casting forming process, wherein the machine part casting forming device comprises a base, a fixing frame is fixedly installed at the top of the base, a screw rod is movably installed on the inner surface wall of the fixing frame, a slide rod is fixedly installed at the same time, two sets of sliding sleeves are connected on the outer surface wall of the slide rod in a sliding mode, two sets of screw sleeves are connected on the outer surface wall of the screw rod in a screwing mode, a supporting bin and a matching bin are respectively and fixedly connected between the two sets of screw sleeves and the sliding sleeves, the supporting bin and the matching bin are completely the same in structure, a placing bin fixedly connected with the rear end face of the base is connected to the top of the supporting bin in a lapping mode, a constant temperature bin is formed by the placing bin and the supporting bin, and an air compressor and a pressure relief opening are respectively and fixedly installed on two sides of the horizontal end of the placing bin. According to the invention, the purity of the molten aluminum in the crucible and the service life of the holding furnace are ensured, the operation steps are reduced, and the casting and forming efficiency is improved, so that the use effect of the mechanical part casting and forming device is improved.

Description

Machine part casting forming device and process thereof

Technical Field

The invention relates to the technical field of mechanical part casting and forming, in particular to a mechanical part casting and forming device and a mechanical part casting and forming process.

Background

The low pressure casting is a casting method in which a mold is generally placed above a sealed crucible, compressed air is introduced into the crucible to cause a low pressure (0.06 to 0.15 MPa) on the surface of molten metal, and molten metal is raised from a lift tube to fill the mold and to control solidification. The casting method has the advantages of good feeding, compact casting structure, easy casting of large thin-wall complex castings, no need of risers and high metal yield of 95%. No pollution and easy automation. But the equipment cost is higher and the production efficiency is lower.

The low-pressure casting is a casting method in which liquid alloy is pressed into a casting mold cavity from bottom to top under the action of pressure and is solidified under the action of pressure to obtain a casting. The sealed crucible is filled with dry compressed air or inert gas, and the molten metal is filled into the casting mold from bottom to top through the pouring channel via the pressure acting on the molten metal level, and the mold filling pressure is 20-60 kPa. When the casting is completely solidified, the gas pressure on the liquid surface is relieved, so that the metal liquid which is not solidified in the riser tube and the pouring gate flows into the crucible by the self weight, then the casting mould is opened, and the casting is taken out.

At present, the existing mechanical part casting forming device still has shortcomings, after the aluminum liquid in the heat preservation furnace is used up, the furnace cover of the furnace door needs to be manually opened, new aluminum liquid is added through a liquid adding device, and therefore uninterrupted use of the low mechanical part casting forming device is guaranteed.

Disclosure of Invention

The invention aims to solve the problems and provides a machine part casting and forming device and a process thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a machine part casting forming device, includes the base, base top fixed mounting has fixed frame, fixed mounting has the slide bar when fixed frame interior surface wall movable mounting has the screw rod, slide bar exterior surface wall sliding connection has two sets of sliding sleeves, the screw rod exterior surface wall closes soon and is connected with two sets of swivel nut, and is two sets of respectively fixedly connected with support storehouse and cooperation storehouse between swivel nut and the sliding sleeve, just it is identical with cooperation storehouse structure to support the storehouse, support storehouse top closure connection and base rear end face fixed connection place the storehouse, it constitutes constant temperature storehouse with the support storehouse to place the storehouse, it has air compressor and pressure release mouth to place storehouse horizontal end both sides respectively fixed mounting, it is provided with mould and roof-rack to place the storehouse top, roof-rack top fixed mounting has the pneumatic cylinder, it is provided with sealing mechanism to place between the storehouse and the vertical end of support storehouse, it all is connected with the block crucible to support storehouse interior surface wall and cooperation storehouse interior surface wall, it wears to be equipped with the transmission portion that is used for the aluminium liquid conduction to place the storehouse and support between the storehouse.

As a further description of the above technical solution:

the transmission part comprises a liquid lifting pipe, the inner surface wall of the liquid lifting pipe is elastically connected with an active section, and an elastic part fixedly connected with the outer surface wall of the liquid lifting pipe is arranged on the outer side of the active section.

As a further description of the above technical solution:

sealing mechanism is including the joint frame, the joint frame top is through spring and place interior table wall elastic connection in the storehouse, the joint frame is connected through joint groove and support storehouse top block, just table wall fixed mounting has the elastic cushion layer in the joint groove.

As a further description of the above technical solution:

the base rear end face fixed mounting has the fixing base, the fixing base top is rotated through the damping pivot and is connected with the rotating turret, rotating turret top movable mounting has the cooling bin, table wall fixed mounting has the fan in the cooling bin, fan input fixed mounting has clean room and induction port, fan output end fixed mounting has the gas vent.

As a further description of the above technical solution:

the equal fixed mounting of table wall has the card frame in cooperation storehouse and the support storehouse, table wall and crucible exterior wall laminate mutually in the card frame.

As a further description of the above technical solution:

the lift tube is integrally formed with the elastic member.

As a further description of the above technical solution:

and an activated carbon filter element is fixedly arranged on the inner surface wall of the purification chamber.

As a further description of the above technical solution:

the process comprises the following steps:

step one, closing a mold, ensuring sufficient aluminum liquid in a crucible, and controlling an air compressor to introduce dry gas into a constant-temperature bin;

step two, aluminum liquid passes through a pouring gate from bottom to top through a liquid lifting pipe, and the section groove in the mold is stably filled;

and step three, after the casting is solidified, relieving the gas pressure on the liquid surface through a pressure relief opening, enabling the unset aluminum liquid in the riser tube and the pouring gate to flow back to the crucible, and then opening the mold to obtain the casting blank.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, before the aluminum liquid in the crucible in the inner cavity of the supporting bin is determined to be used up, the crucible in the matching bin is filled with the aluminum liquid through the liquid adding equipment, after the aluminum liquid in the crucible in the supporting bin is completely used up, the screw rod is controlled to rotate, the screw rod is screwed with the screw sleeve to simultaneously provide driving force for the supporting bin and the matching bin, the supporting bin and the sliding sleeve on the outer surface wall of the matching bin synchronously slide along the sliding rod, so that the supporting bin and the matching bin synchronously move horizontally until the supporting bin is placed in the supporting bin, and the matching bin is combined with the placing bin.

2. In the invention, after the supporting bin and the crucible in the inner cavity of the supporting bin are replaced, the rotating frame can be moved to the corresponding position, the fan is controlled to work, the fan can accelerate the exchange of airflow near the crucible and suck back gas generated by the crucible, the gas can enter the purifying chamber through the air suction port, and is exhausted through the exhaust port after being adsorbed and purified by the activated carbon in the purifying chamber, so that the cooling of the crucible is accelerated and the harmful gas overflowing from the crucible is prevented from being absorbed by other workers, thereby improving the safety of the mechanical part casting and forming device.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the screw and the slide bar of the present invention;

FIG. 3 is a schematic structural view of a turret and a cooling chamber according to the present invention;

FIG. 4 is a schematic structural view of a spring and a coupling frame according to the present invention;

FIG. 5 is a schematic view of the structure of the lift tube and the active section of the present invention.

Illustration of the drawings:

1. a base; 2. a fixing frame; 3. a slide bar; 4. a screw; 5. a constant temperature bin; 501. placing a bin; 502. a supporting bin; 6. an air compressor; 7. a matching bin; 8. a mold; 9. a top frame; 10. a hydraulic cylinder; 11. a cooling bin; 12. a pressure relief port; 13. a sliding sleeve; 14. a threaded sleeve; 15. an air suction port; 16. a clean room; 17. a fan; 18. an exhaust port; 19. a rotating frame; 20. a fixed seat; 21. a spring; 22. combining the frames; 23. a coupling groove; 24. a riser tube; 25. an active segment; 26. an elastic member; 27. a crucible; 28. and (5) clamping the frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

referring to fig. 1-5, a machine part casting and forming device comprises a base 1, a fixed frame 2 is fixedly installed at the top of the base 1, a screw rod 4 is movably installed on the inner surface wall of the fixed frame 2, a slide rod 3 is fixedly installed at the same time, two sets of sliding sleeves 13 are slidably connected to the outer surface wall of the slide rod 3, two sets of screw sleeves 14 are rotatably connected to the outer surface wall of the screw rod 4, a supporting bin 502 and a matching bin 7 are fixedly connected between the two sets of screw sleeves 14 and the sliding sleeves 13 respectively, the supporting bin 502 and the matching bin 7 are completely identical in structure, a placing bin 501 fixedly connected with the rear end face of the base 1 is lapped at the top of the supporting bin 502, a constant temperature bin 5 is formed by the placing bin 501 and the supporting bin 502, an air compressor 6 and a pressure relief port 12 are fixedly installed on two sides of the horizontal end of the placing bin 501 respectively, a mold 8 and a top frame 9 are arranged at the top of the placing bin 501, a hydraulic cylinder 10 is fixedly installed at the top of the top frame 9, a sealing mechanism is arranged between the vertical end of the placing bin 501 and the supporting bin 502, a crucible is connected with the inner surface wall of the matching bin 7, a crucible 27 is arranged between the inner surface wall of the supporting bin 502 and the crucible for transferring aluminum liquid.

Before confirming that the aluminum liquid in the crucible 27 in the inner cavity of the supporting bin 502 is used up, the crucible 27 in the matching bin 7 is filled with the aluminum liquid through a feeding device, after the aluminum liquid in the crucible 27 in the supporting bin 502 is completely used up, the screw rod 4 is controlled to rotate, the screw rod 4 and the screw sleeve 14 are screwed together to provide driving force for the supporting bin 502 and the matching bin 7 at the same time, the sliding sleeve 13 on the outer surface wall of the supporting bin 502 and the sliding sleeve 13 on the outer surface wall of the matching bin 7 synchronously slide along the sliding rod 3, so that the supporting bin 502 and the matching bin 7 synchronously horizontally move until the supporting bin 502 is separated from the placing bin 501, the matching bin 7 is combined with the placing bin 501, in the process, due to the arrangement of the active section 25 on the inner surface wall of the lift pipe 24, the matching bin 7 firstly pushes the bottom of the lift pipe 24 to deviate, then the return occurs under the elastic force of the elastic piece 26 and the return occurs and the aluminum liquid in the crucible 27 on the inner surface wall of the matching bin 7 is submerged in the matching bin, the combining frame 22 is combined with the matching bin 7 under the action of the spring 21, the effect of mechanical casting, the airtightness of the matching bin 7 and the placing bin 501 is ensured, namely, the matching bin 7 becomes a new supporting bin is integrated supporting bin, the integrated supporting bin is integrated supporting bin, the mechanical casting efficiency is improved, and the use of the mechanical casting efficiency of the mechanical component is improved, and the mechanical casting efficiency is improved, and the casting efficiency of the casting process, and the casting efficiency is improved.

The transmission part comprises a liquid lifting pipe 24, the inner surface wall of the liquid lifting pipe 24 is elastically connected with an active section 25, an elastic part 26 fixedly connected with the outer surface wall of the liquid lifting pipe 24 is arranged outside the active section 25, the matching bin 7 firstly pushes the bottom of the liquid lifting pipe 24 to deviate, and then the liquid lifting pipe resets under the elastic force of the elastic part 26 and is submerged in aluminum liquid in a crucible 27 of the inner surface wall of the matching bin 7.

Sealing mechanism is including combining frame 22, and combining frame 22 top is passed through spring 21 and is placed storehouse 501 interior table wall elastic connection, and combining frame 22 is connected with the top block of supporting storehouse 502 through combination groove 23, and table wall fixed mounting has the elastic cushion layer in the combination groove 23, guarantees to cooperate storehouse 7 and the gas tightness of placing storehouse 501.

Base 1 rear end face fixed mounting has fixing base 20, and the top of fixing base 20 is rotated through the damping pivot and is connected with

rotating turret

19, and 19 top movable mounting of rotating turret has cooling bin 11, and table wall fixed mounting has fan 17 in the cooling bin 11, and fan 17 input fixed mounting has clean room 16 and induction port 15, and fan 17 output fixed mounting has gas vent 18.

After the supporting bin 502 and the crucible 27 in the inner cavity of the supporting bin are replaced, the rotating frame 19 can be moved to the corresponding position, the fan 17 is controlled to work, the fan 17 can accelerate the exchange of air flow near the crucible 27 and suck back air generated by the crucible 27, the air can enter the purifying chamber 16 through the air suction port 15, and after the air is adsorbed and purified through activated carbon in the purifying chamber 16, the air is discharged through the air exhaust port 18, so that the cooling of the crucible 27 is accelerated, and the harmful gas overflowing from the crucible 27 is prevented from being absorbed by workers, and the safety of the mechanical part casting and forming device is improved.

The inner surface walls of the matching bin 7 and the supporting bin 502 are fixedly provided with a clamping frame 28, and the inner surface wall of the clamping frame 28 is attached to the outer surface wall of the crucible 27 so as to ensure the position stability of the crucible 27.

The lift tube 24 is integrally formed with the resilient member 26 to provide structural strength between the lift tube 24 and the resilient member 26.

An active carbon filter element is fixedly arranged on the inner surface wall of the purification chamber 16 to adsorb solid impurities in the gas.

A machine part casting molding process comprises the following steps:

step one, closing the mold 8, ensuring sufficient aluminum liquid in the crucible 27, and controlling an air compressor 6 to introduce dry gas into the constant-temperature bin 5;

step two, the aluminum liquid passes through the pouring gate from bottom to top through the liquid lifting pipe 24 and stably fills the profiled groove in the die 8;

and step three, after the casting is solidified, relieving the gas pressure on the liquid level through the pressure relief port 12, enabling the unset aluminum liquid in the liquid lifting pipe 24 and the pouring gate to flow back to the crucible 27, and then opening the mold 8 to obtain the casting blank.

The working principle is as follows: during use, before the aluminum liquid in the crucible 27 in the inner cavity of the supporting bin 502 is determined to be used up, the crucible 27 in the matching bin 7 is filled with the aluminum liquid through a liquid adding device, after the aluminum liquid in the crucible 27 in the supporting bin 502 is completely used up, the screw rod 4 is controlled to rotate, the screw rod 4 and the screw sleeve 14 are screwed together and provide driving force for the supporting bin 502 and the matching bin 7, the sliding sleeve 13 on the outer surface wall of the supporting bin 502 and the sliding sleeve 13 on the outer surface wall of the matching bin 7 synchronously slide along the sliding rod 3, so that the supporting bin 502 and the matching bin 7 synchronously horizontally move until the supporting bin 502 is separated from the placing bin 501, the matching bin 7 is combined with the placing bin 501, in the process, due to the arrangement of the active section 25 on the inner surface wall of the liquid lifting pipe 24, the matching bin 7 firstly pushes the bottom of the liquid lifting pipe 24 to deviate, then reset under the elastic force of the elastic piece 26 and is submerged in the crucible 27 on the inner surface wall of the matching bin 7, the combination frame 22 is combined with the matching bin 7 under the action of the spring 21, the matching bin 7 and the placing bin are guaranteed, namely, the matching bin 7 becomes a new supporting bin, the supporting bin is integrated, the mechanical supporting bin is used, the mechanical molding efficiency is improved, and the service life of the aluminum liquid is prolonged, and the use of the mechanical molding device is prolonged.

After the crucible 27 of supporting bin 502 and its inner chamber is replaced, portable rotating turret 19 reaches the corresponding position, and control fan 17 work, fan 17 can also carry out the resorption with the gas that crucible 27 produced when accelerating the exchange of the near air current of crucible 27, and gas can enter clean room 16 through induction port 15, after the activated carbon through clean room 16 inside carries out the absorption purification, discharge through gas vent 18, thereby avoid the harmful gas that overflows on crucible 27 to absorb respectively the staff when accelerating the cooling of crucible 27, thereby improved machine part casting forming device's security.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a machine part casting forming device, includes base (1), its characterized in that, base (1) top fixed mounting has fixed frame (2), fixed mounting has slide bar (3) when surface wall movable mounting has screw rod (4) in fixed frame (2), slide bar (3) surface wall sliding connection has two sets of sliding sleeves (13), screw rod (4) surface wall closes soon is connected with two sets of swivel nut (14), and is two sets of respectively fixedly connected with between swivel nut (14) and sliding sleeve (13) supports storehouse (502) and cooperation storehouse (7), just support storehouse (502) and cooperation storehouse (7) structure is the same completely, support storehouse (502) top closure be connected with base (1) rear end face fixed connection place storehouse (501), place storehouse (501) and support storehouse (502) constitution constant temperature storehouse (5), place storehouse (501) horizontal end both sides respectively fixedly mounted have air compressor (6) and pressure release mouth (12), it is provided with mould (8) and roof-frame (9) to place storehouse (501) top fixed mounting has pneumatic cylinder (10) and supports storehouse (502) top sealing connection, it is provided with crucible interior surface wall (502) and cooperates with storehouse (7) and is provided with crucible sealing mechanism (27) to place storehouse (501), place storehouse (501) and support and wear to be equipped with the transmission portion that is used for aluminium liquid conduction between storehouse (502), transmission portion is including stalk (24), table wall elastic connection has active section (25) in stalk (24), active section (25) outside is provided with elastic component (26) with stalk (24) outward appearance wall fixed connection, sealing mechanism is including combining frame (22), combine frame (22) top through spring (21) and place storehouse (501) interior table wall elastic connection, combine frame (22) through combining groove (23) and support storehouse (502) top block and be connected, just table wall fixed mounting has the elastic cushion layer in combination groove (23).

2. The machine part casting and forming device according to claim 1, wherein a fixing seat (20) is fixedly installed on the rear end face of the base (1), a rotating frame (19) is rotatably connected to the top of the fixing seat (20) through a damping rotating shaft, a cooling bin (11) is movably installed on the top of the rotating frame (19), a fan (17) is fixedly installed on the inner surface wall of the cooling bin (11), a purifying chamber (16) and an air suction port (15) are fixedly installed at the input end of the fan (17), and an air exhaust port (18) is fixedly installed at the output end of the fan (17).

3. The machine part casting and forming device as claimed in claim 1, wherein the inner surface walls of the matching bin (7) and the supporting bin (502) are fixedly provided with clamping frames (28), and the inner surface walls of the clamping frames (28) are attached to the outer surface wall of the crucible (27).

4. The machine part casting device according to claim 1, wherein the lift tube (24) is integrally formed with the elastic member (26).

5. The machine part casting and forming device as claimed in claim 2, wherein an activated carbon filter element is fixedly mounted on the inner surface wall of the purification chamber (16).

6. A machine part casting molding process using the machine part casting molding apparatus according to any one of claims 1 to 5, characterized by comprising the steps of:

step one, closing a mold (8), ensuring sufficient aluminum liquid in a crucible (27), and controlling an air compressor (6) to introduce dry gas into a constant temperature bin (5);

step two, aluminum liquid passes through a pouring gate from bottom to top through a liquid lifting pipe (24) and stably fills a groove in the die (8);

and step three, after the casting is solidified, relieving the gas pressure on the liquid surface through the pressure relief opening (12), so that the unset aluminum liquid in the riser tube (24) and the pouring gate flows back to the crucible (27), and then opening the mold (8) to obtain the casting blank.