Improved cooling position for casting wheel hub side mold

Abstract

The utility model discloses a cast wheel hub side mould cooling position improvement structure, including the side mould main part, the inside of left and right two side walls of side mould main part is shaped with the oblique wall surface of corresponding extension and close, the inside wall middle part of side mould main part is shaped with the arc recess, and the cooling block is in the arc recess and is fixed in the side mould main part, the left and right two end portions of cooling block stretch out corresponding oblique wall surface, and the end face of the end portion of cooling block of adjacent two side mould main parts is pressed against each other. It can when cooling, the cooling block contracts, and the extension part of its two ends is retracted and is close to corresponding oblique wall surface, thereby making the oblique wall surface of adjacent side mould completely close, will not produce the clearance, reduces the flash formation, improves the casting effect.

Description

Technical Field

[0001] This utility model relates to the field of wheel hub processing equipment technology, and more specifically to an improved structure for the cooling position of the side mold of a cast wheel hub. Background Technology

[0002] In the existing mold structure, the wheel hub mold side mold consists of 4 moving molds for mold closing, and the casting mold has higher requirements for mold temperature control at the spoke root. This is mainly due to the need to improve the cooling control efficiency of the 4 side molds. Strong cooling is required to quickly reduce the mold temperature at this location and improve performance and efficiency.

[0003] However, under the effect of strong cooling, the shrinkage rate of the cooling device in the side mold is much greater than that of the side mold body, which causes the gap between the cooling devices of the side mold to become larger (between the 45-degree faces). Flash appears on the product at this position, increasing the difficulty of subsequent processing. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an improved structure for the cooling position of the side mold of a cast wheel hub. During cooling, when the cooling block shrinks, the protruding parts at both ends retract and fit tightly against the corresponding inclined wall, so that the inclined walls of adjacent side molds are completely close together without gaps, reducing flash formation and improving the casting effect.

[0005] The solution of this utility model to the aforementioned technical problem is:

[0006] An improved structure for cooling the side mold of a cast wheel hub includes a side mold body. The inner sides of the left and right side walls of the side mold body are formed with relatively extending and converging inclined wall surfaces. An arc-shaped groove is formed in the middle of the inner side wall of the side mold body. The cooling block is located in the arc-shaped groove and fixed in the side mold body.

[0007] The left and right ends of the cooling block extend out of the corresponding inclined wall surface, and the end faces of the cooling blocks of two adjacent side mold bodies press against each other.

[0008] The thickness of the left and right ends of the cooling block extending out of the corresponding inclined wall is 0.1 mm to 0.5 mm.

[0009] The cooling block is an arc-shaped block with an arc-shaped cooling cavity formed inside. The outer wall of the cooling block is in close contact with the inner arc-shaped sidewall of the arc-shaped groove. The left and right parts of the outer wall of the cooling block are formed with inwardly extending connecting screw holes, which communicate with the corresponding arc-shaped cooling cavity.

[0010] The left and right side walls of the side mold body form a 45° angle with the corresponding inclined wall surface.

[0011] The inner wall of the cooling block mates with the outer wall of the wheel hub to be cast.

[0012] The outstanding effect of this utility model is:

[0013] During cooling, when the cooling block shrinks, its protruding ends retract and fit tightly against the corresponding inclined wall, thus ensuring that the inclined walls of adjacent side molds are completely flush and without gaps, reducing flash formation and improving casting effect. Attached Figure Description

[0014] Figure 1 This is a partial structural diagram of the four components of this utility model when they are molded together;

[0015] Figure 2 These are four partial top views of this utility model;

[0016] Figure 3 yes Figure 2 A magnified view of a portion of the image;

[0017] Figure 4 This is a partial structural schematic diagram of the present invention;

[0018] Figure 5 This is a partial sectional view of the present invention;

[0019] Figure 6 This is a partial structural schematic diagram of the cooling block of this utility model;

[0020] Figure 7 yes Figure 6 A schematic diagram of the local structure from a different angle;

[0021] Figure 8 This is a partial structural diagram of the side mold body. Detailed implementation method:

[0022] For example, see below. Figures 1 to 8 As shown, an improved structure for cooling the side mold of a cast wheel hub includes a side mold body 10. The inner sides of the left and right side walls of the side mold body 10 are formed with relatively extending and converging inclined wall surfaces 11. An arc-shaped groove 12 is formed in the middle of the inner side wall of the side mold body 10. The cooling block 20 is located in the arc-shaped groove 12 and fixed in the side mold body 10.

[0023] The left and right ends 21 of the cooling block 20 extend out of the corresponding inclined wall 11, and the left and right side walls of the side mold body 10 form a 45° angle with the corresponding inclined wall 11.

[0024] In this embodiment, the four side mold bodies 10 are close to each other, wherein the adjacent inclined wall surfaces 11 of each two adjacent side mold bodies 10 are close to each other, and the end faces of the cooling blocks 20 of the two adjacent side mold bodies 10 press against each other.

[0025] Furthermore, the thickness of the left and right ends 21 of the cooling block 20 extending out of the corresponding inclined wall 11 is 0.1mm to 0.5mm. In this embodiment, the thickness is 0.3mm. This thickness ensures that when adjacent inclined wall 11 of two adjacent side mold bodies 10 are close together, the gap between them is about 0.6mm. This prevents the molten metal from entering this gap during casting. When the molten metal fills the mold cavity and pressure holding molding is required, coolant is introduced into the cooling block 20 for rapid forced cooling, causing the cooling block 20 to shrink. The extended portions of its left and right ends 21 retract, making them flush with the corresponding inclined wall 11. As the side mold bodies 10 are continuously pushed by the hydraulic cylinder, the four side mold bodies 10 are brought close together, and the adjacent inclined wall 11 of two adjacent side mold bodies 10 are brought close together. At this time, no gaps appear, so the molten metal will not enter the gaps during pressure holding molding, and there will be virtually no flash, ensuring the casting effect.

[0026] Furthermore, the cooling block 20 is an arc-shaped block with an arc-shaped cooling cavity 22 formed inside. The outer side wall of the cooling block 20 is closely attached to the inner arc-shaped side wall of the arc-shaped groove 12. The left and right parts of the outer side wall of the cooling block 20 are formed with inwardly extending connecting screw holes, which communicate with the corresponding arc-shaped cooling cavity 22.

[0027] The left and right sides of the inner arc-shaped sidewall of the arc-shaped groove 12 are both formed with outwardly extending connecting through holes 13, which correspond to the connecting screw holes.

[0028] It can insert the inlet and outlet connectors for cooling water into the corresponding connecting through holes 13 and screw them into the corresponding connecting screw holes, thus communicating with the arc-shaped cooling cavity 22.

[0029] Furthermore, the inner wall of the cooling block 20 mates with the outer wall of the wheel hub to be cast.

[0030] Furthermore, the top and bottom surfaces of the cooling block 20 are both formed with arc-shaped grooves 23, and the outer side of the arc-shaped grooves 23 extends out of the outer wall of the cooling block 20.

[0031] Furthermore, a raised support portion 24 is formed on the top or bottom surface of the outer side of the arc groove 23. The corresponding wall surface of the raised support portion 24 is in close contact with the top or bottom surface of the arc groove 12. At the same time, the cooling block 20 is fixed to the corresponding position of the side mold body 10 by bolts (not shown in the figure).

[0032] After installation, the cooling block 20 in this embodiment is fixed to the side mold body 10 by bolts, making it easy to disassemble and assemble. The function of its arc groove 23 is to reduce the contact area between the top and bottom surfaces of the cooling block 20 and the arc groove 12, so that the cooling mainly cools the forming part (the outer wall at the spoke root of the wheel hub) that is in contact with the inner side wall of the cooling block 20, thus meeting the casting requirements.

[0033] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An improved casting wheel hub side mold cooling position structure comprising a side mold main body (10), characterized by: The inner sides of the left and right side walls of the side mold body (10) are formed with relatively extended and converging inclined wall surfaces (11), and the middle of the inner side wall of the side mold body (10) is formed with an arc-shaped groove (12). The cooling block (20) is located in the arc-shaped groove (12) and fixed in the side mold body (10). The left and right ends (21) of the cooling block (20) extend out of the corresponding inclined wall surface (11), and the end faces (21) of the cooling blocks (20) of two adjacent side mold bodies (10) press against each other.

2. A cooling position improvement for a casting wheel hub side mold according to claim 1, characterized in that: The thickness of the left and right ends (21) of the cooling block (20) extending out of the corresponding inclined wall (11) is 0.1 mm to 0.5 mm.

3. A cooling position improvement for a cast wheel side mold according to claim 1, characterized in that: The cooling block (20) is an arc-shaped block with an arc-shaped cooling cavity (22) formed inside. The outer side wall of the cooling block (20) is closely attached to the inner arc-shaped side wall of the arc-shaped groove (12). The left and right sides of the outer side wall of the cooling block (20) are formed with inwardly extending connecting screw holes, which are connected to the corresponding arc-shaped cooling cavity (22).

4. A cooling position improvement for a cast wheel side mold according to claim 3, characterized in that: The left and right sides of the inner arc-shaped sidewall of the arc-shaped groove (12) are both formed with outwardly extending connecting through holes (13), which correspond to the connecting screw holes.

5. A cooling position improvement for a cast wheel side mold according to claim 1, characterized in that: The left and right side walls of the side mold body (10) form a 45° angle with the corresponding inclined wall surface (11).

6. A cooling position improvement for a casting wheel hub side mold according to claim 1, characterized in that: The inner wall of the cooling block (20) mates with the outer wall of the wheel hub to be cast.

7. A cooling position improvement for a cast wheel side mold according to claim 1, characterized in that: The top and bottom surfaces of the cooling block (20) are both formed with arc-shaped grooves (23), and the outer side of the arc-shaped grooves (23) extends out of the outer wall of the cooling block (20).

8. A cooling position improvement for a casting wheel hub side mold according to claim 7, characterized in that: A raised support portion (24) is formed on the top or bottom surface of the outer side of the arc groove (23), and the corresponding wall surface of the raised support portion (24) is in close contact with the top or bottom surface of the arc groove (12).

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