TW201618975A - Wheel structure and method for manufacturing the same - Google Patents

Abstract

The invention relates to a wheel structure and a method for manufacturing the same. It comprises at least two components which can be assembled as a wheel, and the at least two components are connected to each other. Furthermore, a connection between the at least two components is fixed by friction stir welding. The wheel consists of a rim and a wheel hub. Thereby the rim is molded by spinning and pressing an aluminum plate to improve its mechanical strength, and the wheel hub is molded by casting to be manufactured by various styles. Moreover, the rim can have different color from the wheel hub. Accordingly, the wheel of the invention has the advantages of good mechanical strength, dazzling style and firm connection to achieve the substantial benefit of improving its industrial competitiveness.

Description

Wheel structure and manufacturing method thereof

The invention relates to a rim structure and a manufacturing method thereof, in particular to a component of at least two rims at an interface, which is combined and fixed by friction stir welding to improve mechanical strength, sleekness and stability. The rim structure and its manufacturing method.

According to the vehicles, such as steam and locomotive, the rim is mainly composed of a central hub connecting the outer peripheral wheel frames. Existing rims, locomotives and other vehicles have rim manufacturing methods including casting, stamping and forging. Among them, the casting method heats the aluminum ingot to about 680 ° C to melt it into aluminum soup and then inject it into the mold by gravity. Or low-pressure, high-pressure casting, etc., integrally forming the rim of the central hub and the outer peripheral wheel frame. After casting, the rim system must undergo subsequent processing such as tolerance dressing and grinding, so the casting method can be beneficial to the mass production of the rim and the variability of the style. However, in the process of hot-melting aluminum ingot into aluminum soup, it takes a lot of energy, and the subsequent processing also causes an increase in manufacturing man-hours, and the cost of the mold is not expensive, and the rim of the rim made by the casting method has many vents. The mechanical strength is poor. When the vehicle is subjected to large vibration or impact, it is easy to cause damage and cause danger of driving.

Furthermore, the stamping method is mainly implemented in the production of iron rims, which has high difficulty in application, and the loss rate of the mold is extremely high, and the rim shape is limited, and only a relatively simple style can be produced, and another iron rim is used. The weight is heavier, although it has better vibration and impact resistance, it will increase the overall weight of the vehicle and increase the fuel consumption on the road. Another forging rule is to make the aluminum block into a rim after multi-pass forging process. The rim made of aluminum block has good mechanical properties and the lightest quality. However, forging an aluminum block into a rim system requires more The road forging program is not only time-consuming and labor-intensive, but also consumes a lot of energy. The forging method can also be used to make the rim style.

Therefore, the rim industry has developed the rim of the central hub and the outer wheel frame separately, and then the central hub and the outer wheel frame are assembled by welding, riveting or screwing. However, when the central hub and the outer circumference are When the wheel frame is welded and welded, the coating of the coating on the wheel hub and the wheel frame causes difficulty in welding, and the wheel hub and the wheel frame cannot be firmly combined, and the riveting and screwing manners are required to be drilled and matched. Rivets and screws are locked, but the rivets and screws are locked. When the vehicle is driving on the road, the rims often suffer from vibrations caused by bumps on the road surface. The vibration generated by the bumps on the road surface can easily cause the rivets and screws to loosen. Driving safety.

The reason is that the present inventors have made many of the above-mentioned deficiencies in view of the existing rim manufacturing method and the rim structure thereof, and have been assisted by many years of manufacturing and design experience and knowledge in related fields. The rim manufacturing method and the rim structure have been developed and improved, and the present invention has been developed.

The invention relates to a rim structure and a manufacturing method thereof, the main purpose of which is to provide a component of at least two rims at the joint, which is combined by friction stir welding to improve mechanical strength and sleekness. Wheel structure combined with stability and the like and manufacturing method thereof

In order to achieve the above-described embodiments, the inventors have developed a rim structure and a method of manufacturing the same, comprising at least two members constituting a rim, and joining the at least two members, and at the junction of the at least two members, The friction stir welding is combined and fixed, and the friction stir welding joint is formed at the interface of the at least two members.

The rim structure and the manufacturing method thereof as described above, wherein the main implementation steps are:

A. preparing a hub;

B. preparing a wheel frame;

C. Rib assembly: the hub is connected to the wheel frame, and the hub is connected to the wheel frame and fixed by friction stir welding.

The rim structure and the method of manufacturing the same as described above, wherein the step of preparing the hub causes the hub to be formed in one of casting or forging or stamping.

The rim structure and the manufacturing method thereof as described above, wherein in the step of preparing the hub, the hub is further coated after the hub is formed.

The rim structure and the method of manufacturing the same as described above, wherein the step of preparing the wheel frame causes the wheel frame to be spin-formed by the plate.

The rim structure and the manufacturing method thereof, wherein the plate is spin-formed into an annular frame, and the two sides of the annular frame are joined by friction stir welding.

The rim structure and the manufacturing method thereof as described above, wherein in the step of preparing the wheel frame, after the wheel frame is formed, the wheel frame is anodized.

The rim structure and the manufacturing method thereof as described above, wherein the hub and the wheel frame are in different colors.

The rim structure and the manufacturing method thereof as described above, wherein the hub and the wheel frame are made of the same material.

The rim structure and the manufacturing method thereof as described above, wherein the hub and the wheel frame are different materials.

The rim structure and the manufacturing method thereof as described above, wherein the friction stir welding system is one of a point bonding or a wire bonding method.

The rim structure and the method of manufacturing the same as described above, wherein the rim is made of an aluminum alloy.

In this way, the wheel frame portion of the rim can be spin-formed by an aluminum plate to improve the mechanical strength thereof, and the hub portion is cast and molded, so as to make various shapes and shapes, and the wheel frame and the wheel hub can be colored. According to the combination, the wheel of the invention has good mechanical strength, dazzling shape and firmness, so as to achieve the substantial benefit of the invention in its industrial competitiveness.

In order to make the technical means of the present invention and the effects thereof can be more completely and clearly disclosed, the following is a detailed description. Please refer to the disclosed drawings and drawings:

First, referring to the first figure, the rim structure and the manufacturing method thereof of the present invention, the main implementation steps thereof include:

A. Preparation of the hub: Please refer to the second figure together, the main aluminum alloy is hot melted and injected into the mold, and then the gravity, low pressure or high pressure die casting method is used to make the wheel hub (1) component, and then Coating the wheel hub (1) with paint;

B. Preparation of the wheel frame: the aluminum plate after the calendering forging process is spin-formed into a ring-shaped frame body, and then the two sides of the ring-shaped frame body are combined and fixed by welding or friction stir welding. Forming the wheel frame (2) of the rim and subjecting the wheel frame (2) to anodizing dyeing;

C. Rim assembly: Please refer to the third figure, continue to install the hub (1) in the ring hole (21) of the wheel frame (2), and make the hub (1) its circumference and wheel frame (2 The wall of the ring hole (21) is in contact with each other, and then the circumference of the hub (1) is combined with the wheel frame (2) by friction stir welding, which is implemented by a high-speed rotating stirring tool (3) at its end ( 31) Stir into the wheel frame (2) by the outer wall of the wheel frame (2), and stir into the circumference of the hub (1) and the wheel frame (2) through the wheel frame (2), at the end of the stirring tool (3) When the head (31) is stirred into the wheel frame (2) and the circumference of the hub (1), frictional heat is generated, and the circumference of the wheel frame (2) and the hub (1) is softened and deformed by the agitation, and the wheel frame (2) And the hub (1) peripheral softening material is mixed and integrated with each other, and the wheel frame (2) and the circumference of the hub (1) are tightly combined and fixed to form a rim, and the present invention uses the friction stir welding to carry out the wheel frame (2) ) and the combination of the hub (1), can be combined with multiple points [such as the third Shown], or to surround the hub (1) and the wheel frame (2) of wire bonding patterns [Fourth As shown in FIG] and the like.

According to this, a central portion can be formed as a hub (1), and a wheel frame (2) is connected to the outer circumference of the hub (1), and friction stir welding is also provided at the end of the hub (1) and the wheel frame (2). A point or line-like joint (4) [as shown in the third and fourth figures], and the appearance of the rim structure with a dazzling combination of colors, please refer to Annexes I to III for the rim manufacturing method of this case. The physical picture of the finished rim can be seen from the appearance of the hub (1) and the wheel frame (2), respectively, which are painted and anodized, and the wheel frame (2) has a frictional friction on the outer wall. The welding is stirred by the outer wall of the wheel frame (2) into the point-like joints at the periphery of the hub (1) where it is connected. Since the wheel frame (2) of the rim of the invention is formed by spin-forming of the aluminum plate after the calendering forging process, the internal structure is fine, the mechanical strength is good, and the earthquake resistance and impact resistance are good. Vehicles such as locomotives are assembled and used. When the vehicle travels through bumpy roads, the wheel frame (2) with good mechanical strength of the rim of the present invention can withstand the vibration and impact of the bumpy road surface to avoid deformation and cracking of the rim. Such as damage to effectively improve driving safety.

Furthermore, since the wheel hub (1) of the rim of the present invention is cast and molded, it is convenient to manufacture various styles, and the surfaces of the hub (1) and the wheel frame (2) are separately coated and anodized. And the appearance of the appearance of the dazzling color combination is very attractive to the consumers who like the novelty and the dazzling sense, and can effectively improve the market sales rate of the rim of the invention, and the wheel hub of the invention of the invention (1) ) and the wheel frame (2) are made of aluminum alloy, so they have lightweight characteristics. When assembled in vehicles such as steam and locomotives, they will not cause excessive burden on the vehicle body, and save fuel consumption during driving. In addition, by the rim manufacturing method of the present invention, it is possible to prevent the hub (1) and the wheel frame (2) from being obstructed by the coating paint when the assembly is assembled, and the hub (1) and the wheel frame (2) cannot be stably melted. The welding situation, or riveting, screwing, etc., is easy for the vehicle to pass through the bumpy road surface, subject to vibration, impact, etc., the rivet and the screw are loosened, resulting in the separation of the hub (1) and the wheel frame (2), but may be more Further improve the safety of vehicles driving by.

The foregoing embodiments or drawings do not limit the implementation of the rim structure and the manufacturing method of the present invention. Please refer to the fifth figure. The rim of the present invention may also adopt the following implementation steps. A. Prepare a local wheel. Ring: The hub (1) and the wheel frame (2) are integrally formed by casting into a quarter or a half of the entire rim; B. Alignment: following the local hub (1) Corresponding to the wheel frame (2), to form a rim in preparation; C. rim assembly: continue to connect the local hub (1) and the wheel frame (2), and combine and fix by friction stir welding. The design can reduce the volume of the mold, save the cost of the mold and the space efficiency of the plant occupied by the mold. The manufacture of the wheel hub (1) of the wheel of the invention is not limited to the casting method, but it can also be forged or stamped, and The hub (1) and the wheel frame (2) are not limited to the same aluminum alloy material, and the hub (1) and the wheel frame (2) can be combined with different materials, and the components constituting the rim of the present invention are not limited. Set separately The hub (1) and the wheel frame (2), or the integrally formed partial hub (1) and the wheel frame (2), etc., at least two components that can form the rim, at the junction thereof, by friction stir welding It should be considered as not departing from the rim structure of the present invention and the patented scope of its manufacturing method.

As can be seen from the above structures and embodiments, the present invention has the following advantages:

1. The rim structure and the manufacturing method thereof of the present invention mainly comprise at least two components constituting the rim, which are combined by friction stir welding at the joint, whereby the wheel frame portion of the rim can be calendered The forged aluminum plate is spin-formed, and the wheel frame has good mechanical strength to avoid damage such as deformation of the rim, thereby achieving the effect of improving driving safety.

2. The rim structure and the manufacturing method thereof of the present invention mainly enable at least two components constituting the rim to be joined by friction stir welding at the joint, thereby, the wheel frame can be spin-formed by an aluminum plate, and The wheel hub is cast and molded to make various styles of production, and the appearance of the wheel is formed into a dazzling combination of colors to achieve the substantial benefits of attracting consumers to purchase and enhance the competitiveness of the industry of the invention.

3. The rim structure and the manufacturing method thereof of the present invention mainly enable at least two components constituting the rim to be stably combined by friction stir welding at the joint, thereby avoiding the two-component group standing and being coated with the coating. Obstruction, and can not be welded or welded, or riveted, screwed, etc., rivets and screws are prone to vibration and loosening when driving, in order to further improve the safety of driving.

4. The rim structure and the manufacturing method thereof of the present invention mainly enable at least two components constituting the rim to be joined by friction stir welding at the joint, whereby the hub and the wheel frame can be integrally formed into a rim. One quarter or one half, and then arranged in a row and then fixed by friction stir welding to achieve the effect of saving mold cost and saving space.

In summary, the embodiments of the present invention can achieve the expected functions, and the specific structures disclosed therein have not been seen in the same products, nor have they been disclosed before the application, and have fully complied with the provisions of the Patent Law. It is required that if an application for a patent for invention is filed in accordance with the law, and if the application is granted, the patent will be granted.

(1) ‧‧·wheels

(2) ‧‧‧ wheel frame

(21) ‧‧‧ ring holes

(3)‧‧‧Agitating tools

(31) ‧ ‧ ‧ end

(4) ‧‧‧Scratch

First Figure: Flow chart of the present invention

Second Figure: An exploded view of the present invention

Third figure: a perspective view of the combined implementation state of the present invention (1)

Fourth figure: a perspective view of the combined implementation state of the present invention (2)

Figure 5: Flowchart of another embodiment of the present invention [Attachment]

Attachment 1: Photograph of the rim of the invention (1)

Attachment 2: Photograph of the rim of the invention (2)

Annex III: Photograph of the rim of the invention (3)

(1) ‧‧·wheels

(2) ‧‧‧ wheel frame

(21) ‧‧‧ ring holes

(3)‧‧‧Agitating tools

(31) ‧ ‧ ‧ end

(4) ‧‧‧Scratch

Claims (20)

A rim structure comprising at least two members constituting a rim, and the at least two members are joined, and a friction stir welding joint is formed at the interface of the at least two members. A rim structure includes a hub and a wheel frame, such that the hub is in contact with the wheel frame, and a friction stir welding joint is formed at the end of the hub and the wheel frame. A rim structure comprising a partial hub and a partial wheel frame, wherein the partial hub and the partial wheel frame are integrally formed, and the integrally formed partial hub and the partial wheel frame are correspondingly connected to form a rim, and The local hub and the partial wheel frame have a friction stir welding joint at the butt joint. The rim structure according to any one of claims 1 to 3, wherein the friction stir welding is one of a dot or a line. The rim structure according to claim 2, wherein the hub and the wheel frame are in different colors. The rim structure according to claim 2, wherein the hub and the wheel frame are different materials. The rim structure according to claim 2 or 3, wherein the hub and the wheel frame are made of the same material. A rim manufacturing method includes at least two members constituting a rim, and the at least two members are joined, and the at least two members are joined and fixed by friction stir welding. A rim manufacturing method, the implementation steps comprising: A. preparing a hub; B. preparing a wheel frame; C. rim assembly: connecting the hub to the wheel frame, and connecting the wheel hub to the wheel frame, It is fixed by friction stir welding. The rim manufacturing method according to claim 9, wherein the step of preparing the hub causes the hub to be formed by one of casting or forging or punching. The method for manufacturing a rim according to claim 9, wherein the step of preparing the hub is further applied to the hub after the hub is formed. The method for manufacturing a rim according to claim 9, wherein the step of preparing the wheel frame causes the wheel frame to be spin-formed by the plate. The method for manufacturing a rim according to claim 12, wherein the plate is spin-formed into a ring-shaped frame, and the two sides of the annular frame are joined by friction stir welding. The rim manufacturing method according to claim 9, wherein in the step of preparing the wheel frame, after the wheel frame is formed, the wheel frame is anodized. The rim manufacturing method according to claim 9, wherein the hub and the wheel frame are in different colors. The rim manufacturing method according to claim 9, wherein the hub and the wheel frame are made of the same material. A method for manufacturing a rim, the implementation steps of the method include: A. preparing a local rim: integrally forming a partial hub and a wheel frame; B. arranging the docking: following the partial hub and the wheel frame are connected to each other to form a round Circle; C. rim assembly: Continue to connect the local hub and the wheel frame to the joint by friction stir welding. The rim manufacturing method according to any one of claims 8 to 17, wherein the friction stir welding system is one of a point bonding or a wire bonding method. The rim manufacturing method according to any one of claims 8 to 17, wherein the rim is made of an aluminum alloy. The rim manufacturing method according to claim 9, wherein the hub and the wheel frame are different materials.