CN218015621U

CN218015621U - Aviation motor casing's casting mould

Info

Publication number: CN218015621U
Application number: CN202222140960.0U
Authority: CN
Inventors: 吴健
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-12-13
Anticipated expiration: 2032-08-15

Abstract

The utility model discloses a casting mould of an aviation motor shell, which comprises a fixed mould and a movable mould positioned at the top of the fixed mould, wherein the top of the fixed mould is provided with a lower mould cavity, the bottom of the movable mould is provided with an upper mould cavity corresponding to the lower mould cavity, the inner wall of the upper mould cavity is integrally formed with a core mould, and the top of the movable mould is provided with a casting opening and a ventilation opening which are communicated with the upper mould cavity in a penetrating way; the utility model discloses in, through the setting of first water-cooling mechanism and second water-cooling mechanism, can be simultaneously by the inboard of die cavity and the aluminum alloy of outside matched mould intracavity cool down, thereby the cooling efficiency of effectual improvement mould, utilize annular cooperation strip, the cooperation of annular cooperation groove and high temperature resistant sealing washer, can effectually ensure the leakproofness between the die joint of deciding the mould and moving die utensil, thereby avoid the outside air to enter the die cavity by die joint department, in order to prevent that a large amount of bubbles from appearing in the fashioned coarse blank surface of cooling, and reduce the production of big overlap.

Description

Aviation motor casing's casting mould

Technical Field

The utility model relates to a casting mould specifically is an aviation motor casing's casting mould.

Background

Most of aluminum alloy shells of the conventional aviation motors are produced by casting and molding, and then the rough blank is polished and finished, but the sealing performance between parting surfaces of the existing casting molds, which are contacted with a fixed mold and a movable mold, is poor, so that when the casting molds are used, the temperature of an aluminum alloy melt is high, the casting mold has high fluidity, and the aluminum alloy melt can influence the pressure in a molding cavity in the cooling and curing process, so that outside air enters the molding cavity from the parting surfaces, not only can bubble flaws appear on the surface of the rough blank, but also part of the melt can permeate into the parting surfaces, and large burrs are formed after cooling to influence the quality of the rough blank; meanwhile, the existing casting mold has a water cooling function so as to rapidly cool the aluminum alloy melt, but the water cooling runner of the existing casting mold is positioned on the outer side of the molding cavity, so that the aluminum alloy melt can be cooled only from outside to inside, and the cooling efficiency is still to be improved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an aviation motor casing's casting mould to the die joint leakproofness of solving current casting mould is poor, and cooling efficiency remains the problem of improving.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an aviation motor casing's casting mould, includes the stationary mould and is located the movable mould at stationary mould top, the die cavity down has been seted up at the top of stationary mould, the die cavity has been seted up with the department that corresponds in lower die cavity to the bottom of movable mould, the inner wall integrated into one piece of going up the die cavity has the mandrel, the top of movable mould runs through be provided with casting gate and the ventilative mouth of last die cavity intercommunication, annular cooperation groove has all been seted up with the top of stationary mould to the bottom of movable mould, the inner wall fixedly connected with high temperature resistant sealing washer of annular cooperation groove, the bottom of movable mould and the top of stationary mould and the department that corresponds of annular cooperation groove homogeneous machine-shaping have annular cooperation strip, the size of annular cooperation strip and the size looks adaptation of the annular cooperation groove that corresponds, and the outer terminal surface of annular cooperation strip hugs closely with the surface of the high temperature resistant sealing washer that corresponds, be provided with first water cooling mechanism on the stationary mould, be provided with second water cooling mechanism on the movable mould.

As a further aspect of the present invention: two the annular cooperation strip is concentric setting, and lower die cavity and last die cavity all are located the inboard of annular cooperation strip.

As a further aspect of the present invention: the top surface of the fixed die is fixedly connected with a plurality of positioning pins, positioning holes are formed in the corresponding positions of the bottom of the movable die and each positioning pin, and the sizes of the positioning pins are matched with the positioning holes.

As a further aspect of the present invention: first water-cooling mechanism includes a plurality of water-cooling runners of vertical distribution in the stationary mould, the water-cooling runner comprises seventh runner, first runner, second runner, third runner, the fourth runner that sets up on the stationary mould surface and communicate in proper order, the equal sealing connection of opening part of seventh runner, first runner, second runner, third runner, fourth runner has the plug, the fifth runner that is linked together with the seventh runner is seted up with the department that corresponds of each seventh runner to the outer wall of stationary mould, the sixth runner that is linked together with the fourth runner is seted up with the department that corresponds of each fourth runner to the outer wall of stationary mould, and is a plurality of the opening of fifth runner communicates jointly has inlet manifold, and is a plurality of the opening intercommunication of sixth runner has outlet manifold jointly.

As a further aspect of the present invention: the second water cooling mechanism is including seting up the water-cooling tank at moving die top, the bottom of water-cooling tank is located the core mould, the top of moving die is provided with the apron with the embedding of water-cooling tank open-ended department of correspondence, the apron passes through bolt and moving die fixed connection, and the apron is provided with sealed the pad with the contact surface of moving die, the top of apron is run through and is provided with inlet tube and outlet pipe, the bottom of inlet tube is close to the bottom of water-cooling tank, the bottom of outlet pipe is close to the open-top of water-cooling tank.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses in, through the setting of first water-cooling mechanism and second water-cooling mechanism, can be simultaneously by the inboard of die cavity and the aluminium alloy of outside matched mould intracavity cool down, thereby the cooling efficiency of effectual improvement mould, utilize annular cooperation strip, the cooperation of annular cooperation groove and high temperature resistant sealing washer, can be effectual between the die joint of guarantee fixed mould and movable mould leakproofness, thereby avoid the outside air to enter the die cavity by die joint department, in order to prevent that a large amount of bubbles appear in cooling shaping's coarse blank surface, and reduce the production of big overlap.

Drawings

Fig. 1 is a structural schematic diagram of a casting mold of an aircraft motor shell.

Fig. 2 is a schematic structural view of a water cooling runner in a casting mold of an aircraft motor shell.

Fig. 3 is an enlarged view of a point a in fig. 1.

The mold comprises a fixed mold 1, a lower mold cavity 2, a movable mold 3, an upper mold cavity 4, a core mold 5, a positioning pin 6, a positioning hole 7, an annular matching strip 8, an annular matching groove 9, a high-temperature-resistant sealing ring 10, a water cooling groove 11, a cover plate 12, a water inlet pipe 13, a water outlet pipe 14, a casting opening 15, a ventilation opening 16, a water cooling runner 17, a first runner 18, a second runner 19, a third runner 20, a fourth runner 21, a plug 22, a fifth runner 23, a sixth runner 24, a water inlet main pipe 25, a water outlet main pipe 26 and a seventh runner 27.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-3, in an embodiment of the present invention, an aviation motor casing's casting mould includes a fixed mould 1 and a movable mould 3 located at the top of the fixed mould 1, a lower mould cavity 2 has been seted up at the top of the fixed mould 1, an upper mould cavity 4 has been seted up at the bottom of the movable mould 3 and the corresponding place of the lower mould cavity 2, the inner wall integrated into one piece of the upper mould cavity 4 has a mandrel 5, the top of the movable mould 3 is provided with a casting gate 15 and a ventilation gate 16 communicated with the upper mould cavity 4 in a running-through manner, an annular matching groove 9 has all been seted up at the bottom of the movable mould 3 and the top of the fixed mould 1, the inner wall fixed connection of the annular matching groove 9 has a high temperature resistant seal ring 10, the bottom of the movable mould 3 and the corresponding place of the fixed mould 1 and the annular matching groove 9 have an annular matching strip 8 in a machining manner, the size of the annular matching strip 8 is adapted to the size of the corresponding annular matching groove 9, and the outer end surface of the annular matching strip 8 is tightly attached to the outer surface of the corresponding high temperature resistant seal ring 10, the packing 10 is preferably a kind of asbestos, a ceramic fiber and a water-cooling mechanism is provided on the fixed mould 1, and a second water-cooling mechanism is provided on the first movable mould 3.

Two annular cooperation strip 8 is concentric setting, and lower mould cavity 2 and last mould cavity 4 all are located annular cooperation strip 8's inboard.

The top surface of the fixed die 1 is fixedly connected with a plurality of positioning pins 6, positioning holes 7 are formed in the corresponding positions of the bottom of the movable die 3 and the positioning pins 6, and the positioning pins 6 are matched with the positioning holes 7 in size.

The first water cooling mechanism comprises a plurality of water cooling runners 17 which are vertically distributed in a fixed die 1, the water cooling runners 17 are composed of seventh runners 27, first runners 18, second runners 19, third runners 20 and fourth runners 21 which are arranged on the surface of the fixed die 1 and sequentially communicated, screw plugs 22 are hermetically connected at openings of the seventh runners 27, the first runners 18, the second runners 19, the third runners 20 and the fourth runners 21, fifth runners 23 communicated with the seventh runners 27 are arranged at corresponding positions of outer walls of the fixed die 1 and the seventh runners 27, sixth runners 24 communicated with the fourth runners 21 are arranged at corresponding positions of outer walls of the fixed die 1 and the fourth runners 21, the openings of the fifth runners 23 are communicated with a water inlet header pipe 25, and the openings of the sixth runners 24 are communicated with a water outlet header pipe 26.

The second water cooling mechanism is including seting up the water-cooling tank 11 at the 3 tops of moving mould, the bottom of water-cooling tank 11 is located the mandrel 5, the top of moving mould 3 is provided with apron 12 with the 11 open-ended embedding in water-cooling tank, apron 12 passes through bolt and moving mould 3 fixed connection, and the apron 12 is provided with sealed the pad with the contact surface of moving mould 3, the top of apron 12 is run through and is provided with inlet tube 13 and outlet pipe 14, the bottom of inlet tube 13 is close to the bottom of water-cooling tank 11, the open-top that the bottom of outlet pipe 14 is close to water-cooling tank 11.

The utility model discloses a theory of operation is:

the utility model discloses when using, after fixing fixed mould 1, use hydraulic equipment to promote movable mould 3 downwards, so that fixed mould 1 hugs closely with the die joint of movable mould 3, can utilize sprue gate 15 to carry out the pouring of aluminum alloy in the die cavity, after the pouring is accomplished, utilize cold water circulating equipment to carry out circulation water injection in water-cooling tank 11 through inlet tube 13 and outlet pipe 14, can have inside to outside to cool down the aluminum alloy, utilize cold water circulating equipment to advance inlet manifold 25 and outlet manifold 26 to make the cooling water circulate and flow in each water-cooling runner 17, can cool down the aluminum alloy from outside to inside, thereby the cooling efficiency of effectual improvement mould;

and in the casting and cooling processes, the annular matching strip 8, the annular matching groove 9 and the high-temperature-resistant sealing ring are matched, so that the sealing performance between the parting surfaces of the fixed mold 1 and the movable mold 3 can be effectively guaranteed, the external air is prevented from entering the mold cavity from the parting surface, a large amount of bubbles are prevented from appearing on the surface of the cooling-molded rough blank, and the generation of large flash is reduced.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides an aviation motor casing's casting mould which characterized in that: including stationary mould (1) and movable mould (3) that are located stationary mould (1) top, lower die cavity (2) have been seted up at the top of stationary mould (1), die cavity (4) have been seted up with the department of corresponding of lower die cavity (2) to the bottom of movable mould (3), the inner wall integrated into one piece of going up die cavity (4) has mandrel (5), the top of movable mould (3) is run through and is provided with casting gate (15) and ventilative mouthful (16) that communicate with last die cavity (4), the bottom of movable mould (3) and the top of stationary mould (1) have all been seted up annular cooperation groove (9), the inner wall fixedly connected with of annular cooperation groove (9) has high temperature resistant sealing washer (10), the top of movable mould (3) and stationary mould (1) and the department of corresponding uniform body machine-shaping of annular cooperation groove (9) have annular cooperation strip (8), the size of annular cooperation strip (8) and the size looks adaptation of the annular cooperation groove (9) that corresponds, and the high temperature resistant sealing washer (10) that the annular cooperation strip (8) and the outer terminal surface corresponds are hugged closely to be provided with water-cooling mechanism on the stationary mould (3) the second movable mould (3) the outer surface of the mechanism.

2. The casting mold for the housing of an aircraft motor according to claim 1, wherein: two annular cooperation strip (8) are concentric setting, and lower mould chamber (2) and last mould chamber (4) all are located the inboard of annular cooperation strip (8).

3. The casting mold for the housing of an aircraft motor according to claim 1, wherein: the top surface fixedly connected with a plurality of locating pins (6) of decide mould (1), locating hole (7) have all been seted up with the department that corresponds of each locating pin (6) in the bottom of movable mould (3), the size and the locating hole (7) looks adaptation of locating pin (6).

4. The casting mold for the housing of an aircraft motor according to claim 1, wherein: first water-cooling mechanism includes a plurality of water-cooling runner (17) of vertical distribution in fixed mould (1), water-cooling runner (17) comprises seventh runner (27), first runner (18), second runner (19), third runner (20), fourth runner (21) of seting up on fixed mould (1) surface and communicating in proper order, seventh runner (27), first runner (18), second runner (19), third runner (20), the opening part of fourth runner (21) all sealing connection have plug (22), fifth runner (23) that are linked together with seventh runner (27) are seted up to the department that corresponds of fixed mould (1) outer wall and each seventh runner (27), sixth runner (24) that are linked together with fourth runner (21) are seted up to the department that corresponds of fixed mould (1) outer wall and each fourth runner (21), and a plurality of the opening of fifth runner (23) communicates jointly has water inlet header pipe (25), and a plurality of the opening of sixth runner (24) communicates jointly has water outlet main pipe (26).

5. The casting mold for the housing of an aircraft motor according to claim 1, wherein: the second water cooling mechanism comprises a water cooling groove (11) formed in the top of the movable mold (3), the bottom end of the water cooling groove (11) is located in the core mold (5), a cover plate (12) is arranged at the position, corresponding to the opening of the water cooling groove (11), of the top of the movable mold (3) in an embedded mode, the cover plate (12) is fixedly connected with the movable mold (3) through bolts, a sealing gasket is arranged on the contact surface of the cover plate (12) and the movable mold (3), a water inlet pipe (13) and a water outlet pipe (14) are arranged at the top of the cover plate (12) in a penetrating mode, the bottom end of the water inlet pipe (13) is close to the bottom of the water cooling groove (11), and the bottom end of the water outlet pipe (14) is close to the top opening of the water cooling groove (11).