Processing technology of vehicle wheel spoke with reinforced double-layer wheel spoke air holes

Abstract

The present invention discloses a vehicle spoke with reinforced double-layer spoke air holes, comprising a spoke body, a center hole, a bolt hole, and a plurality of circumferentially distributed air holes, wherein the inner edge of the air hole is turned inward or outward and then pressed on the spoke body to form a reinforcing rib. The present invention has the following advantages and effects: the inner edge of the air hole is turned inward or outward and then pressed on the spoke body to form a reinforcing rib, at which time the thickness of the circumference of the air hole is increased, the bearing capacity of the air hole can be improved when subjected to force, cracks in the air hole are less likely to occur, and the strength can be increased; at the same time, under the same bearing capacity, the spoke body can be made of thinner materials, reducing the weight of the vehicle spoke and achieving energy conservation and emission reduction. Also disclosed is a processing technology for a vehicle spoke with reinforced double-layer spoke air holes, which can reduce the occurrence of cracking during processing and improve the product qualification rate.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts, and in particular to a vehicle wheel spoke with reinforced double-layer wheel spoke air holes and a processing technology thereof. Background Art

[0002] At present, a wheel refers to a rotating bearing between the tire and the axle. It is usually composed of a rim and a spoke, which can be integral, permanently connected or detachable. The rim refers to the component on the vehicle that mounts and supports the tire, and the spoke refers to the supporting component on the tire between the axle and the rim. The air hole is a hole on the spoke used to dissipate heat from the wheel and brake system and facilitate tire inflation. It is also called a heat dissipation hole, a hand hole, etc.

[0003] Because the air holes are evenly distributed on the spinning surface of the spokes and can be seen directly, they are also a highlight that improves the appearance of the spokes. At the same time, because of the air holes, the weight of the wheel can be reduced, energy consumption can be reduced, and energy saving and environmental protection can be achieved.

[0004] Currently, most wheel spokes are formed by spin forming, which results in a thinning of the spoke spinning surface thickness. When used by heavy-loaded vehicles, cracks will appear in the spoke air holes, which will then cause the entire spoke mounting surface to break, causing the vehicle to fall off the axle and cause a serious vehicle safety accident.

[0005] In summary, how to increase the vehicle load-bearing capacity while reducing the vehicle weight and avoiding cracks in the spoke air holes has become an urgent problem to be solved by technicians in this field. Summary of the invention

[0006] The purpose of the present invention is to provide a vehicle spoke with a reinforced double-layer spoke air hole, which has the effects of improving the load-bearing capacity of the wheel, avoiding cracks in the spoke air hole, and improving the aesthetics.

[0007] The above technical purpose of the present invention is achieved through the following technical scheme: a vehicle spoke with reinforced double-layer spoke air holes, comprising a spoke body, on which a center hole, bolt holes, and multiple circumferentially distributed air holes are arranged, and the inner edge of the air hole is turned inward or outward and then pressed on the spoke body to form a reinforcing rib.

[0008] By adopting the above scheme, the inner edge of the air hole is turned inward or outward and then pressed against the spoke body to form a reinforcing rib. At this time, the thickness around the air hole is increased, which can improve the bearing capacity of the air hole when subjected to force, making it less likely for cracks to appear in the air hole and increasing the strength. At the same time, under the same bearing capacity, the spoke body can use thinner materials to reduce the weight of the spoke and achieve energy conservation and emission reduction.

[0009] The present invention is further configured as follows: the inner edge of the air hole is turned inward or outward to form a bending portion of the reinforcing rib, which transitions into an arc protruding toward the center of the air hole.

[0010] By adopting the above solution, the inner edge of the air hole is turned inward or outward to form a reinforcing rib with a bend that transitions into an arc protruding toward the center of the air hole, which can improve the tensile strength.

[0011] The present invention is further configured such that: the spoke body at the peripheral part of the air hole protrudes in a direction away from the reinforcing rib during the process of forming the reinforcing rib.

[0012] By adopting the above solution, the inner and outer sides of the air hole protrude from the spoke body, forming a ring-shaped reinforced structure in appearance, avoiding a uniform air hole style, and improving the appearance of the wheel.

[0013] The present invention is further configured as follows: a portion of the end of the reinforcing rib close to the spoke body is embedded in the spoke body.

[0014] By adopting the above solution, the portion of the end of the reinforcing rib close to the spoke body is embedded in the spoke body, which can increase the contact area between the reinforcing rib and the spoke body, making it difficult for the reinforcing rib to deform.

[0015] The present invention is further configured as follows: a waterproof sealant layer is provided at the junction of the reinforcing rib and the spoke body.

[0016] By adopting the above solution, dust and other impurities can easily enter the junction between the reinforcing rib and the spoke body during vehicle driving. A waterproof sealant layer is provided to achieve a waterproof seal, so that dust and other impurities are not easily accumulated at the junction between the reinforcing rib and the spoke body.

[0017] The purpose of the present invention is to provide a processing technology for a vehicle wheel spoke with reinforced double-layer wheel spoke air holes.

[0018] The above technical objectives of the present invention are achieved through the following technical solutions: A processing technology for a vehicle wheel spoke with a reinforced double-layer wheel spoke air hole comprises the following steps:

[0019] S1: After the middle plate or coil is flattened, it is punched into a round blank;

[0020] S2: punching a center hole and a bolt hole on the circular blank to form a blank with holes;

[0021] S3: Spinning the blank with holes into a spoke shape to form a spoke semi-finished product 1;

[0022] S4: punching a circle of air holes on the spinning surface of the spoke semi-finished product 1 to form the spoke semi-finished product 2;

[0023] S5: deburring the edges of the air holes of the spoke semi-finished product 2 to form the spoke semi-finished product 3;

[0024] S6: pre-bending the inner edge of the air hole of the spoke semi-finished product 3 inward or outward to form a spoke semi-finished product 4;

[0025] S7: bending the inner edge of the air hole of the finished wheel spoke 4 again to increase the bending angle, thereby forming a semi-finished wheel spoke 5;

[0026] S8: heating the air hole bending part of the spoke semi-finished product 5 and the spinning surface of the spoke semi-finished product 5 to 200-300° C.;

[0027] S9: Press the bent portion of the air hole of the spoke semi-finished product 5 onto the spoke semi-finished product 5 to form a reinforcing rib, thereby forming a spoke body.

[0028] By adopting the above scheme, the inner edge of the air hole is pre-bent in step S6, and the inner edge of the air hole is bent again in step S7 to increase the bending angle, so that in step S9, the bent part of the air hole is pressed tightly on the spoke semi-finished product five, reducing the occurrence of easy breakage of the bent part during processing; in step S8, the spinning surface of the spoke semi-finished product five is heated, which can improve the plasticity of the spoke body, prevent cracking when the material is deformed, and has the effects of reducing bending pressure and reducing rebound after bending, thereby ultimately improving the product qualification rate.

[0029] The present invention is further configured as follows: before step S9, a thermosetting waterproof sealant is applied to the circumference of the bent portion of the inner edge of the air hole, and then after step S9, the thermosetting waterproof sealant is cured to form a waterproof sealant layer.

[0030] By adopting the above scheme, the spun surface of the spoke semi-finished product five is heated in step S8, and the bent part of the air hole of the spoke semi-finished product five is pressed onto the spoke semi-finished product five to form a reinforcing rib in step S9. At this time, the temperature at the junction of the reinforcing rib and the spoke body is relatively high, which is convenient for the rapid solidification of the thermosetting waterproof sealant and prevents the thermosetting waterproof sealant from leaking due to failure to solidify in time. The waterproof sealant layer formed after fixing realizes waterproof sealing and prevents impurities from entering between the reinforcing rib and the spoke body. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic structural diagram of Example 1;

[0032] Figure 2 is a schematic structural diagram of Example 2;

[0033] Figure 3 It is a structural schematic diagram of Example 3.

[0034] Figure numerals: 1, spoke body; 11, center hole; 12, bolt hole; 13, air hole; 14, reinforcing rib; 15, waterproof sealant layer. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0036] Embodiment 1: A vehicle spoke with a reinforced double-layer spoke air hole, such as Figure 1 As shown, it includes a spoke body 1, a central hole 11 is opened in the middle of the spoke body 1, a plurality of bolt holes 12 are opened on the circumferential side of the spoke body 1 close to the central hole 11, and a plurality of air holes 13 distributed in a circular array are opened on the spun surface of the spoke body 1.

[0037] like Figure 1 As shown, the inner edge of the air hole 13 is turned inward and then pressed against the spoke body 1 to form a reinforcing rib 14, and the bending part of the inner edge of the air hole 13 turned inward to form the reinforcing rib 14 is an arc transition protruding toward the center of the air hole 13. The spoke body 1 at the peripheral part of the air hole 13 protrudes in the direction away from the reinforcing rib 14 during the process of forming the reinforcing rib 14. The end of the reinforcing rib 14 close to the spoke body 1 is embedded in the spoke body 1.

[0038] Implementation effect: the inner edge of the air hole 13 is turned inward or outward and pressed against the spoke body 1 to form a reinforcing rib 14. At this time, the thickness of the side of the air hole 13 is increased, which can improve the bearing capacity of the air hole 13 when subjected to force, making it less likely for the air hole 13 to have cracks, and can increase the strength. At the same time, under the same bearing capacity, the spoke body 1 can use thinner materials to reduce the weight of the spoke and achieve energy saving and emission reduction.

[0039] The inner edge of the air hole 13 is turned inward or outward to form a reinforcing rib 14, and the bending part thereof is an arc transition protruding toward the center of the air hole 13, which can improve the tensile strength. At this time, the inner and outer sides of the air hole 13 protrude from the spoke body 1, forming a ring-shaped reinforced structure in appearance, avoiding a uniform air hole 13 style, and improving the appearance of the wheel.

[0040] Embodiment 2: A vehicle spoke with a reinforced double-layer spoke air hole, such as Figure 2 As shown, it includes a spoke body 1, a central hole 11 is opened in the middle of the spoke body 1, a plurality of bolt holes 12 are opened on the circumferential side of the spoke body 1 close to the central hole 11, and a plurality of air holes 13 distributed in a circular array are opened on the spun surface of the spoke body 1.

[0041] like Figure 2 As shown, the inner edge of the air hole 13 is turned outward and then pressed against the spoke body 1 to form a reinforcing rib 14, and the bending part where the inner edge of the air hole 13 is turned outward to form the reinforcing rib 14 is in an arc transition protruding toward the center of the air hole 13. The spoke body 1 at the peripheral part of the air hole 13 protrudes in a direction away from the reinforcing rib 14 during the process of forming the reinforcing rib 14. The end of the reinforcing rib 14 close to the spoke body 1 is embedded in the spoke body 1.

[0042] Embodiment 3: A vehicle wheel spoke with a reinforced double-layer wheel spoke air hole, such as Figure 3 As shown, the difference from the first embodiment is that a waterproof sealant layer 15 is formed at the junction of the reinforcing rib 14 and the spoke body 1 .

[0043] Implementation effect: During the driving of the vehicle, dust and other impurities easily enter the junction between the reinforcing rib 14 and the spoke body 1. By setting the waterproof sealant layer 15 to achieve waterproof sealing, dust and other impurities are not easily accumulated at the junction between the reinforcing rib 14 and the spoke body 1.

[0044] Embodiment 4: A method for processing a vehicle wheel spoke with a reinforced double-layer wheel spoke air hole corresponding to Embodiment 1, comprising the following steps:

[0045] S1: After the middle plate or coil is flattened, it is punched into a round blank;

[0046] S2: punching a center hole 11 and a bolt hole 12 on the circular blank to form a blank with holes;

[0047] S3: Spinning the blank with holes into a spoke shape to form a spoke semi-finished product 1;

[0048] S4: punching a circle of air holes 13 on the spinning surface of the spoke semi-finished product 1 to form the spoke semi-finished product 2;

[0049] S5: Deburring the edges of the air holes 13 of the spoke semi-finished product 2 to form a spoke semi-finished product 3;

[0050] S6: pre-bending the inner edge of the air hole 13 of the spoke semi-finished product 3 inwardly to form a spoke semi-finished product 4;

[0051] S7: bending the inner edge of the air hole 13 of the finished wheel spoke 4 again to increase the bending angle, thereby forming a semi-finished wheel spoke 5;

[0052] S8: heating the bent portion of the air hole 13 of the spoke semi-finished product 5 and the spinning surface of the spoke semi-finished product 5 to 200° C.;

[0053] S9: Press the bent portion of the air hole 13 of the spoke semi-finished product 5 onto the spoke to form a reinforcing rib 14, thereby forming a spoke finished product.

[0054] Implementation effect: The inner edge of the air hole 13 is pre-bent in step S6, and the inner edge of the air hole 13 is bent again in step S7 to increase the bending angle, so that in step S9, the bent portion of the air hole 13 is pressed tightly against the spoke semi-finished product five, reducing the risk of the bent portion breaking during processing; in step S8, the spun surface of the spoke semi-finished product five is heated, which can improve the plasticity of the spoke body 1, prevent cracking when the material is deformed, and reduce the bending pressure, reduce rebound after bending, etc., ultimately improving the product qualification rate.

[0055] Embodiment 5: A method for processing a vehicle wheel spoke with a reinforced double-layer wheel spoke air hole corresponding to Embodiment 2, comprising the following steps:

[0056] S1: After the middle plate or coil is flattened, it is punched into a round blank;

[0057] S2: punching a center hole 11 and a bolt hole 12 on the circular blank to form a blank with holes;

[0058] S3: Spinning the blank with holes into a spoke shape to form a spoke semi-finished product 1;

[0059] S4: punching a circle of air holes 13 on the spinning surface of the spoke semi-finished product 1 to form the spoke semi-finished product 2;

[0060] S5: Deburring the edges of the air holes 13 of the spoke semi-finished product 2 to form a spoke semi-finished product 3;

[0061] S6: pre-bending the inner edge of the air hole 13 of the spoke semi-finished product 3 outward to form a spoke semi-finished product 4;

[0062] S7: bending the inner edge of the air hole 13 of the finished wheel spoke 4 again to increase the bending angle, thereby forming a semi-finished wheel spoke 5;

[0063] S8: heating the bent portion of the air hole 13 of the spoke semi-finished product 5 and the spinning surface of the spoke semi-finished product 5 to 300° C.;

[0064] S9: Press the bent portion of the air hole 13 of the spoke semi-finished product 5 onto the spoke to form a reinforcing rib 14, thereby forming a spoke finished product.

[0065] Embodiment 6: A processing method for a vehicle spoke with a reinforced double-layer spoke air hole corresponding to Embodiment 3, which is different from Embodiment 5 in that: in step S8, the bent portion of the air hole 13 of the spoke semi-finished product 5 and the spinning surface of the spoke semi-finished product 5 are heated to 250° C. Before step S9, a waterproof sealant is applied to the circumference of the bent portion of the inner edge of the air hole 13 by a glue coating tool, and then after step S9, the waterproof sealant is cured to form a waterproof sealant layer 15.

[0066] Implementation effect: At this time, the temperature at the junction of the reinforcing rib 14 and the spoke body 1 is relatively high, which is convenient for the rapid solidification of the thermosetting waterproof sealant and prevents the thermosetting waterproof sealant from leaking due to failure to solidify in time. The waterproof sealant layer 15 formed after fixation realizes waterproof sealing and prevents impurities from entering between the reinforcing rib 14 and the spoke body 1.

[0067] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A process for processing a vehicle wheel spoke with a reinforced double-layer wheel spoke air hole, characterized in that: The wheel spoke comprises a wheel spoke body (1), the wheel spoke body (1) being provided with a central hole (11), a bolt hole (12), and a plurality of circumferentially distributed air holes (13); the inner edges of the air holes (13) are turned inward or outward and then pressed against the wheel spoke body (1) to form a reinforcing rib (14); The inner edge of the air hole (13) is turned inward or outward to form a reinforcing rib (14), and the bending part thereof is in the form of an arc transition protruding toward the center of the air hole (13); the spoke body (1) at the peripheral part of the air hole (13) protrudes in a direction away from the reinforcing rib (14) during the process of forming the reinforcing rib (14); the end of the reinforcing rib (14) close to the spoke body (1) is embedded in the spoke body (1); a waterproof sealant layer (15) is provided at the junction of the reinforcing rib (14) and the spoke body (1); The processing technology includes the following steps: S1: After the middle plate or coil is flattened, it is punched into a round blank; S2: punching a center hole (11) and a bolt hole (12) on the circular blank to form a blank with holes; S3: Spinning the holed blank into a spoke shape to form a spoke semi-finished product 1; S4: punching a circle of air holes (13) on the spinning surface of the first spoke semi-finished product to form a second spoke semi-finished product; S5: deburring the edges of the air holes (13) of the spoke semi-finished product 2 to form a spoke semi-finished product 3; S6: pre-bending the inner edge of the air hole (13) of the spoke semi-finished product 3 inward or outward to form a spoke semi-finished product 4; S7: bending the inner edge of the air hole (13) of the finished wheel spoke 4 again to increase the bending angle, thereby forming a semi-finished wheel spoke 5; S8: heating the bent portion of the air hole (13) of the spoke semi-finished product 5 and the spinning surface of the spoke semi-finished product 5 to 200-300° C.; S9: Pressing the bent portion of the air hole (13) of the spoke semi-finished product 5 onto the spoke semi-finished product 5 to form a reinforcing rib (14), thereby forming a spoke body (1); S10: fixing the reinforcing rib (14) to the spoke body (1) by welding; Before step S9, a thermosetting waterproof sealant is applied to the circumference of the bent portion of the inner edge of the air hole (13), and then after step S9, the thermosetting waterproof sealant is cured to form a waterproof sealant layer (15).

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