Roller for spinning forming of forged aluminum alloy hub

Abstract

The utility model discloses a roller for spin forming of a forged aluminum alloy hub, which comprises a roller body, and an annular initial arc part which is concave inwards, an inclined surface part which is inclined downwards from inside to outside, a roller round corner part which is convex outwards and a belly round corner part which is convex outwards are sequentially arranged on the outer wall of the roller body from top to bottom. The belly round corner part is arranged on the inner side of the roller round corner part; the round corner radius of the roller can be increased conveniently, the overall thickness of the roller can be increased conveniently, and therefore the service life of roller parts is prolonged, and the spinning machining efficiency is improved. The forming fillet radius is optimized, metal flows smoothly in the blank spinning process through the belly fillet part, spinning forming is facilitated, and the machining efficiency is better improved.

Description

Technical Field

[0001] This utility model belongs to the field of spinning forming technology of forged aluminum alloy wheel hubs, and particularly relates to a roller for spinning forming of forged aluminum alloy wheel hubs. Background Technology

[0002] Currently, in the spinning process of forged aluminum alloy wheel hubs, high-power spinning often uses a tail tip or other methods to fix the blank to the mold; by rotating the mold and the rollers making feeding motion, the blank is continuously thinned point by point and pressed against the mold to form the part of the required shape. That is, high-power spinning mainly relies on the reduction of the blank thickness to achieve the forming of the workpiece.

[0003] In the existing technology, the radius of the fillet of the precision roller is too small, which results in high roller travel resistance, greater roller life and equipment wear, and low efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a roller for spinning forged aluminum alloy wheel hubs, which solves the problems of small roller radius, resulting in large roller travel resistance, large roller life loss and equipment wear, and low efficiency in the existing technology, thereby improving service life and processing efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a roller for spinning forging of forged aluminum alloy wheel hubs, including a roller body. The outer wall of the roller body is provided with an annular inwardly concave initial arc portion, a downwardly inclined slope portion from the inside to the outside, an outwardly protruding roller rounded corner portion, and an outwardly protruding abdominal rounded corner portion from top to bottom, and the abdominal rounded corner portion is located on the inner side of the roller rounded corner portion.

[0007] This invention relates to a roller for spinning forged aluminum alloy wheel hubs. It allows for an increase in the radius of the roller's rounded corners, thereby reducing roller travel resistance, decreasing roller lifespan and equipment wear, and improving processing efficiency. The rounded corners also facilitate material feeding, resulting in smoother metal flow.

[0008] Preferably, the radius R3 of the rounded corner of the roller is set to 10mm.

[0009] Preferably, the radius R4 of the rounded corner of the abdomen is set to 16mm.

[0010] Preferably, the radius R1 of the initial arc portion is set to 10 mm.

[0011] Preferably, the angle α between the inclined surface and the horizontal plane is set to 15°.

[0012] Preferably, the radial length L of the bevel is set to 55 mm.

[0013] Preferably, the maximum diameter Φ of the roller body is set to 440 mm.

[0014] The roller for spinning forged aluminum alloy wheel hubs provided by this utility model has the following beneficial effects:

[0015] The forging aluminum alloy wheel hub spinning forming roller provided by this utility model can solve the problems of small roller fillet radius in the prior art, which causes large roller travel resistance, large roller life loss and equipment wear, and low efficiency. It is easy to increase the roller fillet radius and increase the overall thickness of the roller, thereby improving the service life of the roller parts and improving the spinning processing efficiency. It optimizes the forming fillet radius, and the rounded corner of the belly part makes the metal flow smoothly during the blank spinning process, which is conducive to spinning forming and further improves processing efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a roller for spinning forged aluminum alloy wheel hubs according to an embodiment of the present invention.

[0017] Figure reference numerals:

[0018] 1. Roller body, 101 is the initial arc part, 102 is the inclined part, 103 is the roller rounded corner part, and 104 is the abdominal rounded corner part. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Example

[0021] Please refer to Figure 1 This embodiment provides a roller for spinning forging of forged aluminum alloy wheel hubs, including a roller body 1. The outer wall of the roller body 1 is provided with an annular inwardly recessed initial arc portion 101, an inclined portion 102 that slopes downward from the inside to the outside, an outwardly protruding roller rounded corner portion 103, and an outwardly protruding abdominal rounded corner portion 104, and the abdominal rounded corner portion 104 is disposed on the inner side of the roller rounded corner portion 103.

[0022] The roller used for spinning forged aluminum alloy wheel hubs in this embodiment, such as Figure 1 The diagram shows a schematic representation of the axial section, or vertical section, of the roller body 1. Figure 1As can be seen, the outer wall profile of the roller body 1 in the axial section is provided with an initial arc line, an inclined line, a roller fillet line, and a belly fillet line from top to bottom. These initial arc lines, inclined lines, roller fillet lines, and belly fillet lines correspond to the annular initial arc portion 101, the annular inclined portion 102, the annular roller fillet portion 103, and the annular belly fillet portion 104 on the outer wall of the roller body 1, respectively. By increasing the radius of the roller fillet portion 103, the roller travel resistance can be reduced, the roller lifespan and equipment wear can be reduced, and processing efficiency can be improved. The belly fillet portion 104 is located inside the roller fillet portion 103, that is, below the roller fillet portion 103, and closer to the central axis of the roller body 1 than the belly fillet portion 103; correspondingly, by... Figure 1 As can be seen, the abdominal rounded corner line is located inside the roller rounded corner line, that is, the abdominal rounded corner line is located below the roller rounded corner line and is closer to the central axis of the roller body 1 than the abdominal rounded corner line. The abdominal rounded corner portion 104 is used for material feeding to make the metal flow smoother.

[0023] Specifically, the radius R3 of the rounded corner portion 103 of the roller is set to 10mm. This addresses the issue of the conventional precision rollers currently used in the workshop having a rounded corner radius of R7.5 and a short roller life. Increasing the radius of the rounded corner portion 103 of the roller effectively improves its lifespan and also increases the spinning efficiency.

[0024] Specifically, the radius R4 of the rounded corner 104 of the abdomen is set to 16mm.

[0025] Specifically, the radius R1 of the initial arc portion 101 is set to 10mm.

[0026] Specifically, the angle α between the inclined plane 102 and the horizontal plane is set to 15°.

[0027] Specifically, the radial length L of the beveled portion 102 is set to 55 mm.

[0028] Specifically, the maximum diameter Φ of the roller body 1 is set to 440mm.

[0029] The roller body 1 can be made of GCr15 steel, which is a representative high-carbon chromium bearing steel with good comprehensive performance. After quenching and tempering, it has high and uniform hardness, high wear resistance, and high contact fatigue strength. The cross-section of the roller body 1 is circular, that is, its circumferential section is circular.

[0030] The above embodiments are merely illustrative examples and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

[0031] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0032] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to has a specific orientation, or is constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0033] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A roll for spinning forming of a forged aluminum alloy wheel, characterized by, The roller body includes an annular, inwardly concave initial arc portion, a downwardly sloping portion, an outwardly convex roller corner portion, and an outwardly convex abdominal corner portion, with the abdominal corner portion located inside the roller corner portion.

2. The forged aluminum alloy wheel spinning forming roll according to claim 1, characterized by, The radius R3 of the rounded corner of the roller is set to 10mm.

3. The forged aluminum alloy wheel spinning forming roll according to claim 2, characterized by, The radius R4 of the rounded corner of the abdomen is set to 16mm.

4. The forged aluminum alloy wheel spinning forming roll according to claim 2, characterized by, The radius R1 of the initial arc portion is set to 10 mm.

5. The forged aluminum alloy wheel spinning forming roll according to claim 2, characterized by, The angle α between the inclined plane and the horizontal plane is set to 15°.

6. The forged aluminum alloy wheel spinning forming roll according to claim 5, characterized by The radial length L of the bevel is set to 55 mm.

7. The forged aluminum alloy wheel spinning forming roll of claim 2, wherein The maximum diameter Φ of the roller body is set to 440mm.

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