Flange piece for automobile damping system

Abstract

The utility model discloses a flange piece for an automobile damping system, which belongs to the field of flange pieces, and comprises a body part and a flange part, the body part is tubular, a plurality of first bulges are arranged at one end of the body part along the length direction of the body part, the flange part is annular, and the flange part is connected to the other end of the body part along the length direction of the body part. A plurality of second protrusions are arranged at the end, away from the body part, of the flange part, and the body part, the flange part, the first protrusions and the second protrusions are integrally formed in a cold heading mode. According to the flange piece for the automobile damping system, the first protrusion and the second protrusion are arranged at the two opposite ends of the flange piece respectively, the first protrusion is arranged at one end of the body part, the second protrusion is arranged on the end face of the flange, and the first protrusion and the second protrusion can increase friction force between the flange piece and other parts. And the fastening performance of connection is improved, and use in a vibration environment is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of flange technology, and in particular to a flange for an automotive shock absorption system. Background Technology

[0002] Flanges are a common connecting component in automotive shock absorption systems. Adding ribs to the end face increases the tightness of the connection, making it more suitable for use in vibration environments. Therefore, flanges with ribs are increasingly widely used in automobiles. Currently, there are many cold-forging processes for flanges with ribs, but these only involve forming ribs on the flange end face. Patent application number 202111675918.2 discloses a flange with recessed points on the end face and its manufacturing method. This flange is tubular, with a flange at one end. The flange and flange component are an integral structure, and the flange end face has several recessed points. Simply having a raised flange end face is insufficient to meet usage requirements. Utility Model Content

[0003] This utility model aims to solve at least one of the technical problems existing in the prior art. To this end, this utility model proposes a flange for an automotive shock absorption system. The flange has a first protrusion and a second protrusion in the form of raised ribs at both ends. The flange with raised ribs on both ends is directly cold-forged through continuous cold extrusion deformation at six stations. This reduces processing steps, improves production efficiency, and lowers production costs.

[0004] A flange for an automotive shock absorption system according to an embodiment of the present invention includes:

[0005] The main body is tubular in shape and has a plurality of first protrusions at one end along its length.

[0006] The flange portion is arranged in a ring shape and is connected to the other end of the body portion along the length direction of the body portion. The end of the flange portion away from the body portion is provided with a plurality of second protrusions.

[0007] According to an embodiment of the present invention, a flange for an automotive shock absorption system has at least the following beneficial effects: a first protrusion and a second protrusion are respectively provided at opposite ends of the flange, a first protrusion is provided at one end of the body, and a second protrusion is provided on the flange end face. The first protrusion and the second protrusion can increase the friction between the flange and other components, improve the fastening performance of the connection, and facilitate use in a vibration environment.

[0008] According to some embodiments of this utility model, the body, the flange, the plurality of first protrusions, and the plurality of second protrusions are integrally cold-forged. The first and second protrusions are rib-shaped. Flanges with ribs on both ends, produced by direct cold forging of low-carbon steel, are finished products and require no additional processing. This reduces processing steps, improves production efficiency, and saves production costs. The cold forging process is stable, requiring only one operator to run the production line. Flanges with ribs on both ends, produced directly by cold forging, ensure consistent product dimensions because the forming dimensions are controlled by a mold. The cold forging process preserves complete metal flow lines, and the work hardening of the metal significantly improves the mechanical properties and product quality of the flanges with ribs on both ends.

[0009] According to some embodiments of this utility model, a plurality of the first protrusions are arranged in a circular array around the axial direction of the body portion. The circular array of first protrusions can enhance the overall structural strength of the body portion, making it more durable. It can reduce the risk of damage to the body portion due to uneven stress. The circular array of first protrusions can also provide better support for the body portion, preventing it from deforming under high pressure or high temperature environments.

[0010] According to some embodiments of the present invention, one end of the first protrusion is disposed near the inner wall of the main body, and the other end of the first protrusion is disposed near the outer wall of the main body.

[0011] According to some embodiments of this utility model, the width of the bottom of the first protrusion is greater than the width of the top, and the width of the first protrusion gradually decreases along the direction away from the body. The main function of the first protrusion is to increase friction and improve the fastening performance of the connection. Therefore, the shape of the top of the first protrusion can be freely formed by cold forging. What needs to be controlled are the height of the first protrusion, the bottom width, and the included angle between the two inclined surfaces. The vertical cross-section of the first protrusion is sharp, and the lower end of the first protrusion is wider, which can ensure the connection stability between the first protrusion and the body. The upper end of the first protrusion is sharper, which can optimize the stress distribution on the body, increase the contact pressure between the first protrusion and other components, increase the friction between the flange and other components, improve the fastening performance of the connection, and facilitate demolding.

[0012] According to some embodiments of this utility model, a plurality of second protrusions are arranged in a circular array around the axial direction of the flange portion. The circular array of second protrusions can enhance the overall structural strength of the body portion, making it more durable. It can reduce the risk of damage to the body portion due to uneven stress. The circular array of second protrusions can also provide better support for the body portion, preventing it from deforming under high pressure or high temperature environments.

[0013] According to some embodiments of the present invention, one end of the second protrusion is disposed near the inner wall of the flange portion, and the other end of the second protrusion is disposed near the outer wall of the flange portion.

[0014] According to some embodiments of the present invention, the inner diameter of the flange is equal to the inner diameter of the body, and the outer diameter of the flange is greater than the outer diameter of the body.

[0015] According to some embodiments of this utility model, the outer edge of the flange is chamfered, the inner edge of the flange is chamfered, the outer edge of the body is chamfered, and the inner edge of the body is chamfered. The flange, body, and center hole all have naturally formed transition angles from forging; these transition angles are also called chamfers. This avoids the mechanical hazards (such as cuts to workers' hands) caused by right angles and burrs, as well as the inconvenience of assembly (chamfers facilitate the assembly of parts).

[0016] According to some embodiments of this utility model, the connection between the flange and the body is rounded. The connection between the lower end face of the flange and the outer surface of the body has a rounded transition, which can improve mechanical properties and reduce the risk of fracture caused by stress concentration.

[0017] According to some embodiments of this utility model, the body and the flange are made of low-carbon steel.

[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 This is a schematic diagram of the structure of the flange for the automotive shock absorption system according to an embodiment of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the flange for the automotive shock absorption system according to an embodiment of the present invention. Figure 2 ;

[0022] Figure 3 This is a cross-sectional view of a flange component used in an automotive shock absorption system according to an embodiment of the present utility model;

[0023] Figure 4 This is a cross-sectional schematic diagram of the first protrusion of the flange component used in the automotive shock absorption system according to an embodiment of the present utility model;

[0024] Icon labels:

[0025] 100, Body part; 110, First protrusion; 120, Center hole; 200, Flange part; 210, Second protrusion. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" 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.

[0028] 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.

[0029] Flanges with raised ribs are increasingly widely used in automobiles. Currently, there are many cold-forging processes for flanges with raised ribs, but these all only form the raised ribs on the flange end faces. During flange forming, the forming force is mainly concentrated at the flange end, making the raised ribs on the flange end face relatively easy to form. In contrast, the force on the stem is relatively small, making the forming of the raised ribs on the stem end face relatively difficult. Flanges with raised ribs on both end faces generally require first cold-forging the flange blank, and then stamping to form the raised ribs. Therefore, in order to innovate the cold-forging process and save production costs, a flange for automotive shock absorption systems is being developed based on the existing flange cold-forging process.

[0030] Please see Figure 1 , Figure 2 and Figure 3 A flange for an automotive shock absorber system according to an embodiment of the present invention includes a body portion 100 and a flange portion 200. The body portion 100 is tubular and has a central hole 120 inside. A plurality of first protrusions 110 are provided at one end of the body portion 100 along its length. The flange portion 200 is annular and connected to the other end of the body portion 100 along its length. A plurality of second protrusions 210 are provided at the end of the flange portion 200 away from the body portion 100.

[0031] The flange has a first protrusion 110 and a second protrusion 210 at opposite ends, and a first protrusion 110 at one end of the body 100 and a second protrusion 210 at the flange end face. The first protrusion 110 and the second protrusion 210 can increase the friction between the flange and other components, improve the fastening performance of the connection, and facilitate use in vibration environments.

[0032] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The body 100, flange 200, multiple first protrusions 110 and multiple second protrusions 210 are integrally cold-forged.

[0033] The first protrusion 110 and the second protrusion 210 are rib-shaped. The flange with ribs on both ends is a single flange with a central hole. The flange with ribs on both ends is directly cold-forged by continuous cold extrusion deformation in six stations. This reduces processing steps, improves production efficiency, and lowers production costs.

[0034] Flanges with raised ribs on both ends, produced by direct cold heading of low-carbon steel, are finished products requiring no additional processing. This reduces processing steps, increases production efficiency, and saves production costs. The cold heading production process is stable, requiring only one operator to run the production line. Because the forming dimensions of flanges with raised ribs on both ends are controlled by molds, the dimensional consistency of the products is guaranteed. The cold heading process preserves the complete metal flow lines, and the work hardening effect significantly improves the mechanical properties and overall product quality of the flanges with raised ribs on both ends.

[0035] In some embodiments, see Figure 1 , Figure 2 and Figure 3Multiple first protrusions 110 are arranged in a ring array around the axial direction of the body 100. There can be 18 first protrusions 110, which are radially distributed around the central hole 120. Through continuous cold extrusion deformation at six stations, flanges with ribs on both ends are directly cold-forged. This reduces processing steps, improves production efficiency, and lowers production costs.

[0036] The first protrusion 110 of the annular array enhances the overall structural strength of the body 100, making it more durable. It reduces the risk of damage to the body 100 due to uneven stress. The annular array of the first protrusion 110 also provides better support for the body 100, preventing deformation under high pressure or high temperature conditions.

[0037] In some embodiments, see Figure 1 , Figure 2 and Figure 3 One end of the first protrusion 110 is located near the inner wall of the body portion 100, and the other end is located near the outer wall of the body portion 100. The design of the first protrusion 110 enhances the overall structural strength of the flange portion 200, making it more durable. The first protrusion 110, located near the center hole 120 and the outer edge at its two ends respectively, can provide better support for the flange portion 200.

[0038] In some embodiments, see Figure 2 and Figure 4 The width of the bottom of the first protrusion 110 is greater than the width of the top, and the width of the first protrusion 110 gradually decreases along the direction away from the body portion 100.

[0039] The primary function of the first protrusion 110 is to increase friction and improve the fastening performance of the connection. Therefore, the shape of the top of the first protrusion 110 can be freely formed by cold forging. What needs to be controlled are the height of the first protrusion 110, the bottom width, and the included angle between the two inclined surfaces.

[0040] The first protrusion 110 has a sharp vertical cross-section and a wider lower end, which ensures the connection stability between the first protrusion 110 and the body 100. The upper end of the first protrusion 110 is sharper, which can optimize the stress distribution on the body 100, increase the contact pressure between the first protrusion 110 and other components, increase the friction between the flange and other components, improve the fastening performance of the connection, and facilitate demolding.

[0041] The width of the bottom of the second protrusion 210 is greater than the width of the top, and the width of the second protrusion 210 gradually decreases along the direction away from the flange 200.

[0042] In some embodiments, see Figure 1 , Figure 2 and Figure 3Multiple second protrusions 210 are arranged in a ring array around the axial direction of the flange portion 200. There can be 18 second protrusions 210, with 18 first protrusions 110 radially distributed around the central hole 120. Through continuous cold extrusion deformation at six stations, the flange with protruding ribs on both ends is directly cold-forged. This reduces processing steps, improves production efficiency, and lowers production costs.

[0043] The second protrusion 210 of the annular array enhances the overall structural strength of the body 100, making it more durable. It reduces the risk of damage to the body 100 due to uneven stress. The annular array of the second protrusion 210 also provides better support for the body 100, preventing deformation under high pressure or high temperature conditions.

[0044] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The length of the second protrusion 210 is equal to the thickness of the flange portion 200. One end of the second protrusion 210 is located near the inner wall of the flange portion 200, and the other end is located near the outer wall of the flange portion 200. The design of the second protrusion 210 enhances the overall structural strength of the flange portion 200, making it more durable. The second protrusion 210, located near the center hole 120 and the outer edge at its two ends respectively, provides better support for the flange portion 200.

[0045] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The inner diameter of the flange portion 200 is equal to the inner diameter of the body portion 100, while the outer diameter of the flange portion 200 is larger than the outer diameter of the body portion 100. This larger outer diameter allows the flange to fit more tightly onto the connecting components during connection. Because the flange end has a larger contact area, the connection is more stable and less prone to loosening or leakage.

[0046] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The outer and inner edges of the flange 200 and body 100 are chamfered. The flange 200, body 100, and center hole 120 all have naturally formed forging transition angles, also known as chamfers. These chamfers avoid the mechanical hazards (such as cuts to workers' hands) and assembly difficulties caused by right angles and burrs (as chamfers facilitate assembly between parts).

[0047] In some embodiments, see Figure 1 , Figure 2 and Figure 3The connection between the flange 200 and the body 100 is rounded. The connection between the lower end face of the flange 200 and the outer surface of the body 100 is provided with an arc transition, which can improve mechanical properties and reduce the risk of fracture caused by stress concentration.

[0048] In some embodiments, see Figure 1 , Figure 2 and Figure 3 The body 100 and flange 200 are made of low-carbon steel. Low-carbon steel has a low carbon content, which gives it good plasticity. During cold heading, the material needs to undergo significant plastic deformation, and the plasticity of low-carbon steel ensures that it is not prone to cracking during deformation, thereby improving the product yield and quality.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A flange for an automotive shock absorption system, characterized in that, include: The main body is tubular in shape and has a plurality of first protrusions at one end along its length. The flange portion is arranged in a ring shape and is connected to the other end of the body portion along the length direction of the body portion. The end of the flange portion away from the body portion is provided with a plurality of second protrusions.

2. The flange component for an automotive shock absorption system according to claim 1, characterized in that, The body portion, the flange portion, the plurality of first protrusions, and the plurality of second protrusions are integrally cold-forged.

3. A flange for an automotive shock absorption system according to claim 1, characterized in that, The plurality of the first protrusions are arranged in a ring array around the axial direction of the body portion.

4. A flange for an automotive shock absorption system according to claim 3, characterized in that, One end of the first protrusion is disposed near the inner wall of the main body, and the other end of the first protrusion is disposed near the outer wall of the main body.

5. A flange for an automotive shock absorption system according to claim 1, characterized in that, The width of the bottom of the first protrusion is greater than the width of the top, and the width of the first protrusion gradually decreases along the direction away from the body portion.

6. A flange for an automotive shock absorption system according to claim 1, characterized in that, The second protrusions are arranged in a ring array around the axial direction of the flange.

7. A flange for an automotive shock absorption system according to claim 6, characterized in that, One end of the second protrusion is disposed near the inner wall of the flange portion, and the other end of the second protrusion is disposed near the outer wall of the flange portion.

8. A flange for an automotive shock absorption system according to claim 1, characterized in that, The inner diameter of the flange is equal to the inner diameter of the body, and the outer diameter of the flange is greater than the outer diameter of the body.

9. A flange for an automotive shock absorption system according to claim 1, characterized in that, The connection between the flange and the body is rounded.

10. A flange for an automotive shock absorption system according to claim 1, characterized in that, The body and the flange are made of low-carbon steel.

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