Cooling structure for casting and spinning hub mold

Abstract

The utility model relates to the technical field of casting and spinning hub dies, and discloses a casting and spinning hub die cooling structure which comprises a die body, a cooling insert is arranged on a side die of the die body corresponding to an outer rim of a casting and spinning hub, a water inlet and a water return port are formed in the cooling insert, a cooling channel is arranged in the cooling insert, and the water inlet and the water return port are communicated with the cooling channel. The water inlet and the water return port are respectively communicated with the cooling channel, the cooling insert comprises an upper insert arranged corresponding to the upper part of the outer rim of the cast-spin hub and a lower insert arranged corresponding to the part of the outer rim of the cast-spin hub connected with the spoke root, and the cooling channel is a cooling cavity arranged in the cooling insert. The cooling water tank solves the problems that a traditional cooling water tank is prone to damage and short in service life, avoids the risk that the water tank cracks and leaks water, and guarantees continuous and stable production operation. The cooling insert arranged corresponding to the outer rim can greatly improve the cooling efficiency of the outer rim, the production efficiency is guaranteed, and the defects of cold shut, misrun and the like caused by excessive cooling of the inner rim are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of casting and rotating hub moulds, in particular to a casting and rotating hub mould cooling structure. Background Art

[0002] Compared with low-pressure casting hubs, cast hubs have significant advantages such as high strength and light weight, and have won wide recognition in the market. During the manufacturing process of cast hubs, the rim of the hub needs to be processed twice to reach the corresponding height. Therefore, the thickness of the rim of the cast hub is usually much thicker than that of low-pressure casting products, which puts higher requirements on the cooling solution of the cast hub mold.

[0003] In the existing casting and spinning mold, the cooling water tank for the rim part is set in the top mold of the mold body. During cooling, the cooling water tank first acts on the inner rim, and then cools the outer rim by temperature conduction. In this process, the inner rim is prone to defects such as cold shut and lack of meat due to excessive cooling, and the inner rim is usually not spun. The cold shut and lack of meat defects will be amplified in the subsequent spinning and machining process of the outer rim, seriously affecting the product quality; at the same time, the outer rim can only be cooled by the mold temperature conduction because it cannot be directly cooled by the cooling water tank, resulting in low cooling efficiency of the outer rim, and unable to accurately cool the rim root and other positions, which restricts the improvement of production efficiency; in addition, the cooling water tank is prone to water leakage due to the change of mold temperature during use, and it is difficult to repair, and the service life is short, which affects the production progress.

[0004] Based on this, developing a cooling structure for the casting hub mold and applying it to actual production to replace the traditional top mold with a cooling water tank is an urgent problem to be solved. Utility Model Content

[0005] The utility model aims to provide a cooling structure for a casting hub mold in order to solve the above problems in the existing mold cooling method.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A cooling structure for a cast-spinning hub mold comprises a mold body, a cooling insert is arranged on the side mold of the mold body corresponding to the outer rim of the cast-spinning hub, a water inlet and a water return port are opened on the cooling insert, a cooling channel is arranged in the cooling insert, and the water inlet and the water return port are respectively connected to the cooling channel.

[0008] Preferably, the cooling insert comprises an upper insert arranged corresponding to the upper portion of the outer rim of the cast-spinning hub.

[0009] Preferably, the cooling insert comprises a lower insert arranged corresponding to the position where the outer rim of the cast spinning hub is connected to the spoke root.

[0010] Preferably, the cooling channel is a cooling cavity arranged in the cooling insert, the vertical section of the cooling cavity is in the shape of an elongated strip, and its length direction extends to the vicinity of the upper and lower end surfaces of the cooling insert to increase the effective area of ​​the cooling water.

[0011] Preferably, the cavity wall of the cooling cavity is processed in accordance with the outer rim of the hub to provide a more balanced cooling intensity for the rim.

[0012] Preferably, the water return port of the upper insert is connected to the water inlet of the lower insert through a connecting pipe.

[0013] The beneficial effects of the utility model are:

[0014] The utility model sets the cooling structure corresponding to the rim of the cast rotating hub in the side mold, which improves the many disadvantages of the existing cooling structure set in the top mold. First, the setting of the cooling insert solves the problem that the traditional cooling water tank is easy to damage and has a short service life, avoids the risk of cracking and leakage of the water tank, and ensures the continuous stability of production operations; secondly, the cooling insert set corresponding to the outer rim can greatly improve the cooling efficiency of the outer rim, ensure production efficiency, and the cooling insert cools the inner rim of the cast rotating hub relatively gently through temperature conduction, avoiding defects such as cold insulation and lack of meat caused by excessive cooling of the inner rim.

[0015] The utility model corresponds to the cooling requirements of different parts of the cast-rotating wheel hub, and provides different cooling intensities through separately arranged cooling inserts, so as to achieve the purpose of precise cooling, improve the cooling efficiency and avoid casting defects caused by poor cooling; the setting of the cooling cavity increases the effective area of ​​cooling water, improves the cooling rate, and improves the problems of narrow cooling area and low cooling efficiency of traditional cooling pipelines; the water return port of the upper insert is connected to the water inlet of the lower insert, cancels the configuration of each insert being separately connected to the cooling pipeline, reduces the number of cooling pipelines, saves the time of pipeline connection and assembly, and facilitates mold inspection and maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 It is a schematic diagram of the top cross-sectional structure of the cooling insert in the utility model.

[0019] Figure 3 For this utility model Figure 1Schematic diagram of the side cross-sectional structure of the cooling insert.

[0020] Figure 4 For this utility model Figure 1 Left view of the center side mold.

[0021] In the figure: 1--side mold; 2--cooling insert; 21--water inlet; 22--water return port; 23--cooling channel; 24--upper insert; 25--lower insert; 26--cooling cavity; 27--cavity wall; 28--connecting pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0023] like Figure 1-4 As shown, a cooling structure of a casting hub mold includes a mold body, a cooling insert 2 is arranged on the side mold 1 of the mold body corresponding to the outer rim of the casting hub, a water inlet 21 and a water return port 22 are opened on the cooling insert 2, a cooling channel 23 is arranged in the cooling insert 2, and the water inlet 21 and the water return port 22 are respectively connected to the cooling channel 23. When in use, the water inlet 21 of the cooling insert 2 is connected to the cooling water source to supply cooling water to the cooling channel 23 in the cooling insert 2, and the cooling water absorbs heat through heat exchange in the cooling channel 23, so that the outer hub part of the casting hub can be quickly cooled, so as to achieve the purpose of efficient cooling. The cooling water that completes the heat exchange flows out of the cooling insert 2 through the water return port 22 to form a water cooling cycle.

[0024] This embodiment sets the cooling structure for the rim of the cast wheel hub in the side mold 1, which improves the many disadvantages of the existing cooling structure set in the top mold. First, the setting of the cooling insert 2 solves the problem that the traditional cooling water tank is easy to damage and has a short service life, avoids the risk of cracking and leakage of the water tank, and ensures the continuous and stable production operation; secondly, the cooling insert 2 set corresponding to the outer rim can greatly improve the cooling efficiency of the outer rim, ensure production efficiency, and the cooling insert 2 cools the inner rim of the cast wheel hub relatively gently through temperature conduction, avoiding defects such as cold shut and lack of meat caused by excessive cooling of the inner rim.

[0025] As a preferred embodiment, Figure 1 , 4As shown, the cooling insert 2 includes an upper insert 24 corresponding to the upper part of the outer rim of the cast-rotating hub. The upper insert 24 can implement efficient cooling on the upper part of the outer rim to achieve a precise cooling effect. The cooling insert 2 also includes a lower insert 25 corresponding to the part where the outer rim of the cast-rotating hub connects to the spoke root, which implements efficient cooling on the thicker casting part of the spoke root. This embodiment corresponds to the different cooling requirements of different parts of the cast-rotating hub, and provides different cooling intensities through the separately arranged cooling inserts 2 to achieve the purpose of precise cooling. While improving the cooling efficiency, casting defects caused by poor cooling are avoided.

[0026] Preferably, if Figure 3 As shown, the cooling channel 23 is a cooling cavity 26 disposed in the cooling insert 2, and the vertical section of the cooling cavity 26 is in the shape of an elongated strip, and its length direction extends to the vicinity of the upper and lower end surfaces of the cooling insert 2, so as to increase the effective area of ​​the cooling water and improve the cooling rate. This embodiment improves the problem of narrow cooling area and low cooling efficiency of the traditional cooling pipeline.

[0027] Preferably, the cavity wall 27 of the cooling cavity 26 is processed in accordance with the outer rim of the hub, thereby providing a more balanced cooling intensity for the rim and ensuring the casting quality.

[0028] In order to improve the traditional mold body air duct, water channel pipeline configuration complex, cumbersome connection problems, such as Figure 4 As shown, in this embodiment, the water return port 22 of the upper insert 24 is connected to the water inlet 21 of the lower insert 25 through the connecting pipe 28, so that the upper insert 24 and the lower insert 25 can share a set of cooling circulation pipelines, eliminating the configuration of each insert being connected to a cooling pipeline separately. Thereby reducing the number of cooling pipelines to be laid, saving the time for pipeline connection and assembly, and facilitating mold inspection and maintenance operations.

[0029] The above disclosure is only a specific embodiment of the present patent, but the present patent is not limited thereto. For ordinary technicians in this field, without departing from the principle of the present invention, the deformation made should be deemed to belong to the protection of the present invention.

Claims

1. A cooling structure for a casting hub mold, characterized in that: The invention comprises a mould body, wherein a cooling insert (2) is arranged on a side mould (1) of the mould body corresponding to the outer rim of the cast wheel hub, the cooling insert (2) is provided with a water inlet (21) and a water return port (22), a cooling channel (23) is arranged in the cooling insert (2), and the water inlet (21) and the water return port (22) are respectively connected to the cooling channel (23).

2. A cooling structure for a casting hub mold according to claim 1, characterized in that: The cooling insert (2) comprises an upper insert (24) arranged corresponding to the upper part of the outer rim of the cast-spinning hub.

3. A cooling structure for a casting hub mold according to claim 2, characterized in that: The cooling insert (2) comprises a lower insert (25) arranged corresponding to the position where the outer rim of the cast-spinning hub is connected to the spoke root.

4. The cooling structure of a casting hub mold according to claim 1, characterized in that: The cooling channel (23) is a cooling cavity (26) arranged in the cooling insert (2); the vertical cross-section of the cooling cavity (26) is in the shape of an elongated strip, and its length direction extends to the vicinity of the upper and lower end surfaces of the cooling insert (2) to increase the effective area of ​​the cooling water.

5. The cooling structure of a casting hub mold according to claim 4, characterized in that: The cavity wall (27) of the cooling cavity (26) is processed in accordance with the outer rim of the wheel hub, thereby providing a more balanced cooling intensity for the rim.

6. The cooling structure of a casting hub mold according to claim 3, characterized in that: The water return port (22) of the upper insert (24) is connected to the water inlet (21) of the lower insert (25) via a connecting pipe (28).

Images