CN219310050U - Hub die uniform cooling structure - Google Patents

Abstract

The utility model relates to the technical field of aluminum alloy hub casting and discloses a hub die uniform cooling structure, which comprises a die body, wherein a water cooling groove for cooling water circulation is formed in the die body, the water cooling groove is communicated with a water inlet pipe and a water outlet pipe, the water inlet pipe is provided with a plurality of water cooling grooves which are respectively communicated with the water cooling groove and are used for uniform cooling of the die body, water inlet ends of the water inlet pipes are respectively communicated with a water equalizer, a cooling water source communicated with the water equalizer is a hollow annular structure with a water equalizing cavity, the water inlet pipes are respectively communicated with the water equalizing cavity, and meanwhile, an adjusting part is arranged on the water inlet pipe, and the water flow of each water inlet pipe is respectively adjusted and controlled by the adjusting part, so that the purpose of fine control of die cooling is achieved, the problems of low efficiency and uneven cooling of the traditional air cooling mode are solved, the quality defect of hub castings caused by uneven die cooling are avoided, and the casting quality and the operation efficiency are improved.

Description

Hub die uniform cooling structure

Technical Field

The utility model relates to the technical field of aluminum alloy hub casting, in particular to a hub die uniform cooling structure.

Background

In the low-pressure casting production process of the aluminum alloy hub, a hub casting cavity is formed by closing a die consisting of a top die, a bottom die and a side die, and finally an aluminum alloy hub casting is cast through working procedures such as filling, pressure maintaining and cooling. In the cooling process, in order to accelerate the solidification speed of the aluminum liquid, an air cooling device is usually arranged on the mold, the mold is cooled by taking compressed air as a cooling medium, or a water cooling pipeline is arranged on the mold, and the mold is cooled by flowing cooling water in the pipeline, so that the cooling of the aluminum liquid is completed.

The existing cooling mode has the defects and disadvantages that:

1. the existing air cooling mode has low cooling efficiency, and as the production rhythm is continuously accelerated, the cooling requirement of the die at the present stage cannot be met, and the improvement of the production efficiency is restricted;

2. in the existing water cooling mode, as shown in the attached figure 1, a water cooling pipeline usually adopts a mode of one inlet and one outlet to enter and exit cooling water, because the temperature of a water inlet area and the temperature of a water outlet area are greatly different, the lower temperature of the water inlet area affects the feeding capacity of aluminum liquid, the spoke corresponding to the water inlet is easy to generate shrinkage porosity defect, and the temperature of the water outlet area is relatively higher, so that insufficient cooling is easy to occur; and the temperature of different areas of the die is uneven, so that the problem of deformation of the hub casting is easy to occur, and the casting quality of the hub is influenced.

Based on the above, developing a uniform cooling structure of a hub die is a current problem to be solved.

Disclosure of Invention

The utility model aims to solve the problems by providing a uniform cooling structure of a hub die, which solves the problems that the cooling efficiency of the existing aluminum alloy hub top die air cooling mode is low and the cooling requirement of the die cannot be met; the problem that the casting quality of the hub is affected due to uneven cooling in a water cooling mode.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a wheel hub mould even cooling structure, includes the mould body, set up the water cooling groove that is used for the circulation of cooling water on the mould body, water cooling groove intercommunication inlet tube and outlet pipe, the inlet tube is provided with a plurality ofly, and a plurality of inlet tubes communicate the water cooling groove respectively for the even cooling of mould body.

Preferably, the water inlet ends of the water inlet pipes are all communicated with the water equalizer, the water equalizer is communicated with the cooling water source to supply water to the water inlet pipes, the water equalizer is of a hollow annular structure with water equalizing cavities, and the water inlet pipes are respectively communicated with the water equalizing cavities.

Preferably, the caliber of the water inlet pipe is 5-7mm, more preferably 6.5mm, so that the shrinkage porosity defect is avoided to the greatest extent while the cooling effect is ensured.

Preferably, the number of the water inlet pipes is 6, and the water inlet pipes are distributed on the water cooling tank at equal intervals.

Preferably, each water inlet pipe is provided with an adjusting part for adjusting the flow of cooling water in the water inlet pipe, so that the fine control of cooling of the die is realized.

Preferably, the die body comprises a top die, and the water cooling groove is formed in the top die.

Preferably, the die body comprises a bottom die, and the water cooling groove is formed in the bottom die.

Preferably, the water inlet pipe is communicated with the water cooling tank and the water homogenizer in a welding mode so as to ensure the sealing effect and the production stability.

The utility model has the beneficial effects that:

according to the utility model, the water cooling groove is formed in the die body, the plurality of water inlet pipes are communicated with the water cooling groove, and the die body is uniformly cooled, so that the problems of low efficiency and uneven cooling in the traditional air cooling mode are solved. The water inlet ends of the water inlet pipes are communicated with the water equalizer, the cooling water flow of each water inlet pipe is further uniform through the water equalizer, the uniform cooling effect is improved, meanwhile, the adjusting part is arranged on the water inlet pipe, the water flow of each water inlet pipe is respectively adjusted and controlled through the adjusting part, the purpose of mold cooling fine control is achieved, the quality defect of a wheel hub casting caused by mold cooling unevenness is avoided, the casting quality is improved, and the cooling efficiency is improved.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

Fig. 1 is a schematic diagram of a prior art air cooling mode of a mold.

Fig. 2 is a schematic three-dimensional structure of the present utility model.

Fig. 3 is a cross-sectional view of the present utility model.

Fig. 4 is a schematic view of the structure of the present utility model in use.

In the figure: 1- -top mold; 11- -inlet pipe; 12- -an outlet pipe; 13- -a water cooling tank; 14- -an adjustment section; 2- -a water equalizer; 21- -water homogenizing cavity; 3- -a hub casting; 4- -a bottom die; 5- -side mold.

The arrows in the figure show the direction of cooling water flow.

Detailed Description

As shown in fig. 2-4, a hub mold uniform cooling structure comprises a mold body, wherein the mold body comprises a top mold 1, a bottom mold 4 and a side mold 5, a water cooling groove 13 for cooling water circulation is formed in the mold body, the water cooling groove 13 is communicated with a water inlet pipe 11 and a water outlet pipe 12, cooling water enters the water cooling groove 13 through the water inlet pipe 11, the mold body is cooled, and then the cooling water is discharged from the water outlet pipe 12. Because the temperature of the cooling water initially entering the water inlet pipe 11 is lower, the cooling water continuously absorbs the heat of the die in the process of flowing through the water cooling groove 13, and the temperature of the cooling water continuously rises, so that the die is cooled, and the aluminum liquid in the die cavity is cooled. In the process, the temperature of the die body corresponding to the area of the water inlet pipe 11 is lower, the temperature of the die body corresponding to the area of the water outlet pipe 12 is higher, uneven cooling occurs, and the casting quality of the hub casting 3 is affected.

In order to even the cooling temperature of the die body, the water inlet pipes 11 are provided with a plurality of water inlet pipes 11, the water cooling tanks 13 are respectively communicated with the water inlet pipes 11, and cooling water is respectively introduced into the water inlet pipes 11 to evenly cool the die body. Compared with the original water cooling mode of one inlet and one outlet, the caliber of the water inlet pipe 11 is smaller, so that excessive cooling of a water inlet area of the die body is avoided, the feeding capacity of aluminum liquid is influenced, shrinkage porosity defects are prone to occur in the hub casting 3 corresponding to the water inlet, the caliber of the water inlet pipe 11 is preferably 5-7mm, more preferably 6.5mm, and the shrinkage porosity defects are furthest eliminated while the cooling effect is ensured. Preferably, 6 water inlet pipes 11 are arranged on the water cooling tank 13 at equal intervals.

As shown in fig. 2-3, taking the top die 1 as an example, a water cooling groove 13 is formed in the top die 1 corresponding to the spoke position of the hub, a plurality of water inlet pipes 11 are communicated with the water cooling groove 13, cooling water enters the water cooling groove 13 through the plurality of water inlet pipes 11 at the same time to cool the top die 1, and then is discharged from a water outlet pipe 12 to finish uniform cooling of the top die 1. Similarly, the utility model is also applicable to cooling the bottom die 4 and the side die 5, as shown in fig. 4, the cooling structure is arranged on the bottom die 4, a water cooling groove 13 is arranged in the bottom die 4, a plurality of water inlet pipes 11 are communicated with the water cooling groove 13 to cool the bottom die, the problem of uneven cooling of the bottom die 4 is solved, and the overall cooling efficiency of the die body is improved.

Further, the water inlet ends of the water inlet pipes 11 are communicated with the water equalizer 2, the water equalizer 2 is communicated with a cooling water source to supply water to the water inlet pipes 11, the water equalizer 2 is of a hollow annular structure with water equalizing cavities 21, and the water inlet pipes 11 are respectively communicated with the water equalizing cavities 21. When the cooling water cooling device is used, cooling water supplied by a cooling water source enters the water homogenizing cavity 21, and then enters each water inlet pipe 11 through the water homogenizing cavity 21 to cool down the die, so that the flow of each water inlet pipe 11 is uniform, and the uniform cooling of the die is ensured.

In order to further finely control the cooling efficiency of each inlet pipe 11, an adjusting portion 14 is provided on each inlet pipe 11 for adjusting the flow rate of the cooling water in each inlet pipe 11. When the device is used, the temperature of the mold corresponding to the area of each water inlet pipe 11 is identified through the thermal imager and is used as a basis for adjusting the flow of the water inlet pipes 11 through the adjusting part 14. When the temperature of the die body area corresponding to a certain water inlet pipe 11 is relatively high, the adjusting part 14 of the water inlet pipe 11 is adjusted to increase the cooling water flow of the water inlet pipe 11, otherwise, the flow of the corresponding water inlet pipe 11 is reduced through the adjusting part 14 until the temperatures of all areas are converged, and the purpose of fine cooling control of the die is achieved.

The connection mode of inlet tube 11 and mould body and water equalizer 2 is the welding to guarantee sealedly, avoid the cooling water leakage, ensure production stability.

The foregoing disclosure is merely illustrative of specific embodiments of this patent and this patent is not to be construed as limiting, since modifications will be apparent to those skilled in the art without departing from the principles of the utility model.

Claims (8)

1. The utility model provides a wheel hub mould even cooling structure, includes the mould body, set up water cooling tank (13) that are used for the circulation of cooling water on the mould body, water cooling tank (13) intercommunication inlet tube (11) and outlet pipe (12), its characterized in that: the water inlet pipes (11) are provided with a plurality of water inlet pipes (11) which are respectively communicated with the water cooling grooves (13) and used for uniformly cooling the die body.

2. The hub die uniform cooling structure according to claim 1, wherein: the water inlet ends of the water inlet pipes (11) are all communicated with the water homogenizing device (2), the water homogenizing device (2) is communicated with a cooling water source to supply water to the water inlet pipes (11), the water homogenizing device (2) is of a hollow annular structure with a water homogenizing cavity (21), and the water inlet pipes (11) are respectively communicated with the water homogenizing cavity (21).

3. The hub die uniform cooling structure according to claim 1, wherein: the caliber of the water inlet pipe (11) is 5-7mm.

4. The hub die uniform cooling structure according to claim 1, wherein: the number of the water inlet pipes (11) is 6, and the water inlet pipes are distributed on the water cooling tanks (13) at equal intervals.

5. The hub die uniform cooling structure according to claim 1, wherein: each water inlet pipe (11) is provided with an adjusting part (14) for adjusting the flow of cooling water in the water inlet pipe (11).

6. The hub die uniform cooling structure according to any one of claims 1-5, wherein: the die body comprises a top die (1), and the water cooling groove (13) is formed in the top die (1).

7. The hub die uniform cooling structure according to any one of claims 1-5, wherein: the die body comprises a bottom die (4), and the water cooling groove (13) is formed in the bottom die (4).

8. The hub die uniform cooling structure according to any one of claims 1-5, wherein: the water inlet pipe (11) is communicated with the water cooling tank (13) and the water homogenizing device (2) in a welding mode.

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