CN216780290U

CN216780290U - Novel side die cooling structure for low-pressure casting aluminum alloy wheel hub

Info

Publication number: CN216780290U
Application number: CN202220433440.6U
Authority: CN
Inventors: 李江; 郑艳银; 梁勇; 左桂云; 徐春也; 张继生; 刘志广; 张殿杰; 钱炜麟
Original assignee: Qinhuangdao Xinglong Wheels Co ltd
Current assignee: Qinhuangdao Xinglong Wheels Co ltd
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2022-06-21
Anticipated expiration: 2032-03-02

Abstract

The utility model relates to the technical field of wheel hub molds, and discloses a novel side die cooling structure for low-pressure cast aluminum alloy wheel hubs, which solves the problem that the existing side die cooling structure can cause local casting shrinkage porosity of cast parts; effectively solved current casting side forms cooling structure and can cause the local problem that produces the casting shrinkage porosity of casting through this side forms cooling structure.

Description

Novel side die cooling structure for low-pressure casting aluminum alloy wheel hub

Technical Field

The utility model belongs to the technical field of wheel hub molds, and particularly relates to a novel side mold cooling structure for a low-pressure cast aluminum alloy wheel hub.

Background

The hot working preface is the source process of production aluminum alloy wheel hub, and in daily production process, the aluminium liquid about 700 degrees is added to the die casting machine heat preservation stove in, seals the heat preservation stove furnace gate, and under pressure state, aluminium liquid gets into the mould die cavity along the stalk way, and the mould after preheating is installed on die casting machine equipment, and the mould comprises the triplex: the upper die, the lower die and the side dies are arranged on the upper die, the lower die and the side dies, cooling pipelines are arranged at the upper part, the lower part and the three parts of the side dies of the die generally, and heat energy is taken away by cooling circulation through compressed air or pure water at normal temperature and depending on the cooling pipelines arranged at all the parts of the die, so that the temperature of the die cavity is reduced, and a wheel hub blank is cast.

Along with the production demand and the technical progress, the output needs to be continuously improved, the single-machine efficiency is improved, the sequential solidification principle is followed in the efficiency improvement process, (the cooling sequence of each wheel hub blank is solidified from a first wheel rim, a second wheel rim, the root part of a spoke, the middle part of the spoke, a flange and a last riser head part), if the solidification sequence is broken, the internal organization compactness degree of the blank is weakened, the casting shrinkage porosity defect is generated locally, and the blank with the defect is scrapped to meet the quality demand of a client.

When the effect is carried in daily life, satisfy one, under the prerequisite of two rim internal quality, for further reducing the mould temperature, improve aluminium liquid solidification speed, generally for the cooling of priority increase side forms, ensure that feeding passageway position temperature is outwards progressively reduced by the rising head, form temperature gradient, and then reach and satisfy the inside order of blank and solidify the time and can compromise efficiency promotion again, side forms cooling structure for general use in the trade, but can form certain drawback after the side forms cooling increases, the rim position rises because of the beat accelerates the back temperature, the increase of side forms cooling strength, when reducing lower mould spoke position temperature, aluminium liquid can lead to the temperature to descend when this place is to the rim feeding, also produced the suppression to rim position feeding ability, two positions are because of the high temperature shrinkage porosity defect easily appears, can not satisfy the internal quality demand. The defect of the part becomes a bottleneck problem at present, the further improvement of the single machine efficiency is restricted, no effective improvement method exists in the industry at present, and the process thought for solving the defect at present mainly comprises the following steps: the cooling of the part is weakened, the cooling of the first part of the upper die wheel rim is increased, the efficiency improvement is sacrificed, the hidden danger of the shrinkage porosity of the first position of the wheel rim is increased, the defect that the shrinkage porosity cannot be generated at the second part of the wheel rim can be considered while the effect improvement is achieved, and the method is a difficult problem to be put in front of technicians.

SUMMERY OF THE UTILITY MODEL

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides a novel side die cooling structure for low-pressure casting of an aluminum alloy hub, which effectively solves the problem that the existing side die cooling structure for casting can cause local casting shrinkage porosity of a cast part.

In order to achieve the purpose, the utility model provides the following technical scheme: a novel side die cooling structure for low-pressure cast aluminum alloy wheel hubs comprises a side die body, wherein a first cooling groove is formed in the top end of the inside of the side die body, a first cooling insert is arranged in the first cooling groove, a second cooling groove is formed in the bottom end of the inside of the side die body, a second cooling insert is arranged in the second cooling groove, liquid inlet pipes penetrating and inserting into the side die body are arranged at two ends of one side of each of the first cooling insert and the second cooling insert, a connector is arranged at one end, away from the first cooling insert and the second cooling insert, of each liquid inlet pipe, an upper steering pipe is arranged on a liquid outlet of the first cooling insert, an upper connecting pipe is arranged at the other end of the upper steering pipe, an upper locking main pipe is sleeved at the bottom end of the upper connecting pipe, a lower steering pipe is arranged on a liquid outlet of the second cooling insert, a lower connecting pipe is arranged at the other end of the lower steering pipe, a lower locking main pipe is sleeved at the top end of the lower connecting pipe, a middle connecting pipe which is matched and connected with the upper locking main pipe and the lower locking main pipe is arranged between the upper connecting pipe and the lower connecting pipe, and an outer guide pipe is arranged in the middle of one side of the middle connecting pipe.

Preferably, an upper gasket is arranged between the upper connecting pipe and the middle connecting pipe, and a lower gasket is arranged between the lower connecting pipe and the middle connecting pipe.

Preferably, the distance between the first cooling groove and the lower end face of the side die body is 90mm, the distance between the second cooling groove and the lower end face of the side die body is 60mm, and the maximum width of the cavity face positions of the first cooling groove and the second cooling groove is 40mm respectively from the 45-degree face positions of the side die body at two ends.

Preferably, the first cooling insert and the second cooling insert are both provided with a following water channel, one side of the first cooling insert and one side of the second cooling insert are provided with arc edges, and two ends of the first cooling insert and two ends of the second cooling insert are of bolt plugging structures.

Preferably, a plurality of heat conducting fins connected with the arc-shaped edges are arranged on one side of each of the first cooling insert and the second cooling insert, and a plurality of through holes are formed in the heat conducting fins.

Preferably, the first cooling insert and the second cooling insert are in bolt connection with the side die body, and the first cooling insert and the second cooling insert are made of alloy steel.

Preferably, the water inlet channel and the water outlet channel of the first cooling insert and the second cooling insert are both straight structures.

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

(1) the utility model discloses a wheel hub production and processing method, including the steps of, in operation, through being provided with first cooling tank, first cooling is inserted, the second cooling tank, the second cooling is inserted, go up to the pipe, go up the connecting pipe, the female pipe of locking, down turn to the pipe, the connecting pipe down, the female pipe of lower lock, the limit mould cooling structure that well connecting pipe and outer stand pipe constitute, effectively solved current casting limit mould cooling structure can cause the local problem that produces the casting and contract the pine of casting, the refrigerated efficiency of cooling has been improved simultaneously, and then the efficiency of wheel hub production and processing has been improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

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

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is an enlarged view of a portion of the utility model at A in FIG. 2;

FIG. 4 is an enlarged view of a portion of the present invention at B of FIG. 3;

FIG. 5 is a schematic view of a cooling insert according to the present invention;

in the figure: 1. a side form body; 2. a first cooling tank; 3. a first cooling insert; 4. a second cooling tank; 5. a second cooling insert; 6. a liquid inlet pipe; 7. a connector; 8. an upper steering tube; 9. an upper connecting pipe; 10. locking the main pipe; 11. a lower steering tube; 12. a lower connecting pipe; 13. locking the main pipe; 14. a middle connecting pipe; 15. an outer guide tube; 16. an upper gasket; 17. a lower gasket; 18. a conformal water channel; 19. an arc-shaped edge; 20. a heat conductive sheet; 21. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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.

In the first embodiment, as shown in fig. 1 to 4, the side die comprises a side die body 1, a first cooling groove 2 is formed in the top end of the inside of the side die body 1, a first cooling insert 3 is arranged in the first cooling groove 2, a second cooling groove 4 is formed in the bottom end of the inside of the side die body 1, a second cooling insert 5 is arranged in the second cooling groove 4, the cooling efficiency can be improved through the first cooling insert 3 and the second cooling insert 5, so that the speed of production and processing is improved, a liquid inlet pipe 6 penetrating and inserting into the side die body 1 is arranged at each of the two ends of one side of the first cooling insert 3 and the second cooling insert 5, a connector 7 is arranged at one end of the liquid inlet pipe 6 far away from the first cooling insert 3 and the second cooling insert 5, the inlet of cooling liquid can be realized through the liquid inlet pipe 6 and the connector 7, an upper steering pipe 8 is arranged on a liquid outlet of the first cooling insert 3, and an upper connecting pipe 9 is arranged at the other end of the upper steering pipe 8, the bottom cover of going up connecting pipe 9 is equipped with locking female pipe 10, through last steering tube 8, go up connecting pipe 9 and locking female pipe 10 and can realize the coolant liquid in first cooling insert 3 and discharge, be provided with down steering tube 11 on the leakage fluid dram of second cooling insert 5, the other end of lower steering tube 11 is provided with lower connecting pipe 12, the top cover of lower connecting pipe 12 is equipped with lower locking female pipe 13, through turning to pipe 11 down, coolant liquid in second cooling insert 5 can be realized discharging down connecting pipe 12 and lower locking female pipe 13, be provided with between last connecting pipe 9 and the lower connecting pipe 12 and lock female pipe 10 and lock female pipe 13 and cooperate the well connecting pipe 14 of being connected down, the intermediate position of well connecting pipe 14 one side is provided with outer stand pipe 15, can collect the discharge through well connecting pipe 14 and outer stand pipe 15 and realize the circulation with the coolant liquid.

Embodiment two, on the basis of embodiment one, as shown in fig. 1 to 4, an upper gasket 16 is disposed between the upper connection pipe 9 and the middle connection pipe 14, a lower gasket 17 is disposed between the lower connection pipe 12 and the middle connection pipe 14, the upper gasket 16 and the lower gasket 17 are detachable structures, the double-channel cooling or single-channel cooling is realized by installing and disassembling the upper gasket 16 and the lower gasket 17, the distance between the first cooling groove 2 and the lower end face of the side die body 1 is 90mm, the distance between the second cooling groove 4 and the lower end face of the side die body 1 is 60mm, the maximum width of the cavity face positions of the first cooling groove 2 and the second cooling groove 4 is 40mm respectively from the 145-degree face positions of the side die body at two ends, the later installation of the first and

second cooling inserts

3, 5 is facilitated by the precise design of the dimensions of the first and

second cooling channels

2, 4 and the design of the mounting locations of the first and

second cooling inserts

3, 5;

if the upper and lower water channels are used separately, the mode of gasket blocking can be added between the upper connecting pipe 9 and the middle connecting pipe 14 and between the lower connecting pipe 12 and the middle connecting pipe 14, and if the water channels are used simultaneously, the gasket installation can be cancelled, and the later installation of the first cooling insert 3 and the second cooling insert 5 is facilitated through the accurate design of the sizes of the first cooling groove 2 and the second cooling groove 4 and the design of the installation positions of the first cooling insert 3 and the second cooling insert 5.

In the third embodiment, based on the first embodiment, as shown in fig. 1 and 5, the first cooling insert 3 and the second cooling insert 5 are both provided with a conformal water channel 18, one side of the first cooling insert 3 and one side of the second cooling insert 5 are provided with an arc-shaped edge 19, the heat conduction efficiency can be improved through the conformal water channel 18 and the arc-shaped edge 19, two ends of the first cooling insert 3 and the second cooling insert 5 are provided with bolt plugging structures, the sealing performance can be improved through the bolt plugging, the leakage of the cooling liquid can be avoided, one side of the first cooling insert 3 and one side of the second cooling insert 5 are both provided with a plurality of heat conduction fins 20 connected with the arc-shaped edge 19, the heat conduction fins 20 are provided with a plurality of through holes 21, the heat conduction efficiency can be further improved through the heat conduction fins 20 and the through holes 21, both the bolt connection structures are arranged between the first cooling insert 3 and the second cooling insert 5 and the side die body 1, both the first cooling insert 3 and the second cooling insert 5 are made of alloy steel, the water inlet channel and the water outlet channel of the first cooling insert 3 and the second cooling insert 5 are both straight structures;

the cooling liquid enters the first cooling insert 3 and the second cooling insert 5 from two ends of the first cooling insert 3 and the second cooling insert 5 through the liquid inlet pipe 6, the first cooling insert 3 and the second cooling insert 5 are designed specially, rapid cooling can be achieved, then the cooling liquid is discharged through a passage formed by the upper steering pipe 8, the upper connecting pipe 9 and the upper locking main pipe 10 and a passage formed by the lower steering pipe 11, the lower connecting pipe 12 and the lower locking main pipe 13, then the cooling liquid is collected and discharged through the middle connecting pipe 14 and the outer guide pipe 15 to achieve circulation, if the upper and lower sewers are used independently, a gasket blocking mode can be added between the upper connecting pipe 9 and the middle connecting pipe 14 and between the lower connecting pipe 12 and the middle connecting pipe 14, and if the water channels are used simultaneously, the gasket installation can be cancelled.

In operation, insert through being provided with first cooling tank, first cooling, the second cooling tank, the second cooling is inserted, go up to the pipe, go up the connecting pipe, the female pipe of locking, down turn to the pipe, the connecting pipe down, the female pipe of lower lock, the side forms cooling structure that well connecting pipe and outer stand pipe constitute, effectively solved current casting side forms cooling structure and can cause the local problem that produces the casting and contract the pine of casting, improved cooling refrigerated efficiency simultaneously, and then improved the efficiency of wheel hub production and processing.

Claims

1. The utility model provides a novel side forms cooling structure of low pressure casting aluminum alloy wheel hub, includes side forms body (1), its characterized in that: the side die comprises a side die body (1), a first cooling groove (2) is formed in the top end of the inside of the side die body (1), a first cooling insert (3) is arranged in the first cooling groove (2), a second cooling groove (4) is formed in the bottom end of the inside of the side die body (1), a second cooling insert (5) is arranged in the second cooling groove (4), liquid inlet pipes (6) penetrating and inserting into the side die body (1) are arranged at two ends of one side of each of the first cooling insert (3) and the second cooling insert (5), a connector (7) is arranged at one end, far away from the first cooling insert (3) and the second cooling insert (5), of each liquid inlet pipe (6), an upper steering pipe (8) is arranged on a liquid discharge port of the first cooling insert (3), an upper connecting pipe (9) is arranged at the other end of the upper steering pipe (8), a main upper locking pipe (10) is sleeved at the bottom end of the upper connecting pipe (9), and a lower steering pipe (11) is arranged on a liquid discharge port of the second cooling insert (5), the other end of the lower steering pipe (11) is provided with a lower connecting pipe (12), the top end of the lower connecting pipe (12) is sleeved with a lower locking main pipe (13), a middle connecting pipe (14) which is matched and connected with the upper locking main pipe (10) and the lower locking main pipe (13) is arranged between the upper connecting pipe (9) and the lower connecting pipe (12), and an outer guide pipe (15) is arranged in the middle of one side of the middle connecting pipe (14).

2. The novel side mold cooling structure for the low-pressure cast aluminum alloy hub as claimed in claim 1, wherein: an upper gasket (16) is arranged between the upper connecting pipe (9) and the middle connecting pipe (14), and a lower gasket (17) is arranged between the lower connecting pipe (12) and the middle connecting pipe (14).

3. The novel side mold cooling structure for the low-pressure cast aluminum alloy hub as claimed in claim 1, wherein: the distance between the first cooling groove (2) and the lower end face of the side die body (1) is 90mm, the distance between the second cooling groove (4) and the lower end face of the side die body (1) is 60mm, and the maximum width of the cavity face positions of the first cooling groove (2) and the second cooling groove (4) is 40mm respectively from the 45-degree face positions of the side die body (1) to the two ends.

4. The novel side mold cooling structure for the low-pressure cast aluminum alloy hub as claimed in claim 1, wherein: the novel cooling insert is characterized in that a following water channel (18) is formed in each of the first cooling insert (3) and the second cooling insert (5), an arc-shaped edge (19) is arranged on one side of each of the first cooling insert (3) and the second cooling insert (5), and two ends of each of the first cooling insert (3) and the second cooling insert (5) are of bolt plugging structures.

5. The novel side mold cooling structure for the low-pressure cast aluminum alloy hub as claimed in claim 4, wherein: one side of each of the first cooling insert (3) and the second cooling insert (5) is provided with a plurality of heat conducting fins (20) connected with the arc-shaped edges (19), and the heat conducting fins (20) are provided with a plurality of through holes (21).

6. The novel side mold cooling structure for the low-pressure cast aluminum alloy hub as claimed in claim 1, wherein: bolt connection structures are arranged between the first cooling insert (3) and the second cooling insert (5) and the side die body (1), and the first cooling insert (3) and the second cooling insert (5) are made of alloy steel.

7. The novel side mold cooling structure for the low-pressure cast aluminum alloy hub as claimed in claim 1, wherein: the water inlet channel and the water outlet channel of the first cooling insert (3) and the second cooling insert (5) are both straight structures.