Riveting assembly, part connecting structure and automobile

Abstract

The embodiment of the utility model provides a riveting assembly, a component connecting structure and an automobile. The riveting assembly comprises a first component and a rivet. The rivet comprises a rivet rod and a head part arranged at one end of the rivet rod, a first groove is formed in the outer surface of the rivet rod in the circumferential direction, and the first groove is provided with two opposite sides in the circumferential direction; the rivet rod is riveted with the first component, and a part of the first component is located in the first groove so that the rivet can be matched with the first component in a rotation stopping mode. The part connecting structure comprises a riveting assembly and a second part, the rivet is made of steel, and at least part of the part, riveted with the rivet rod, of the first part is made of aluminum. The second part is welded to the end, away from the head, of the nail rod, and at least the part, welded to the nail rod, of the second part is made of steel. By the adoption of the riveting assembly, the reliability of steel and aluminum connection can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of automobile manufacturing, and in particular to a riveted assembly, a component connection structure, and an automobile. Background Art

[0002] With the demand for lightweight vehicle bodies, aluminum parts are increasingly used in the automotive industry. At the same time, to ensure the safety and strength of vehicle bodies, the need to connect aluminum and steel parts is also increasing. In related technologies, some aluminum and steel parts are fastened together using fasteners such as rivets. However, traditional connection methods are prone to rivets not only failing to penetrate the steel parts but also becoming loose and falling off, resulting in low reliability of the connection between aluminum and steel parts. Utility Model Content

[0003] In view of this, the embodiments of the present application hope to provide a riveted assembly, a component connection structure and an automobile that can improve the reliability of steel-aluminum connections.

[0004] To achieve the above objectives, an embodiment of the present application provides a riveting assembly, comprising:

[0005] first component;

[0006] A rivet comprising a shank and a head disposed at one end of the shank, wherein a first groove is disposed on an outer surface of the shank along a circumferential direction, the first groove having two opposite sides along the circumferential direction; the shank is riveted to the first component, and a portion of the first component is located in the first groove, so that the rivet and the first component are prevented from rotating.

[0007] In one embodiment, there are multiple first grooves, and the multiple first grooves are arranged at intervals along the circumferential direction.

[0008] In one embodiment, the first groove passes through an end of the nail rod facing away from the head.

[0009] In one embodiment, the first groove has a circumferential width dimension along the circumference, and the circumferential width dimension gradually decreases along the axial direction of the nail rod toward the head.

[0010] In one embodiment, the end of the nail rod facing away from the head has a welding plane; and / or,

[0011] One end of the nail rod facing away from the head protrudes from the first component.

[0012] In one embodiment, the outer surface of the nail rod is provided with an annular groove extending along the circumferential direction, the annular groove is closed on two opposite sides of the axial direction of the nail rod, and a portion of the first component is located in the annular groove so that the first component can axially limit the rivet.

[0013] In one embodiment, the annular groove is located between the first groove and the head.

[0014] In one embodiment, a side of the head close to the nail rod has a second groove located on the outer circumference of the nail rod, and a portion of the first component is located in the second groove.

[0015] In one embodiment, the second groove ring is provided on the outer peripheral side of the nail rod.

[0016] Another embodiment of the present application provides a component connection structure, including:

[0017] In the aforementioned riveting assembly, the rivet is made of steel, and at least a portion of the first component and the rivet rod where they are riveted is made of aluminum;

[0018] The second component is welded to an end of the nail rod away from the head, and at least the portion where the second component is welded to the nail rod is made of steel.

[0019] Yet another embodiment of the present application provides a car, comprising the component connection structure described above.

[0020] The embodiment of the present application provides a riveting assembly, a component connection structure and an automobile, wherein the component connection structure is achieved by riveting the rivet rod to the first component and welding it to the second component. Since the rivet in the embodiment of the present application is made of steel, and at least part of the first component and the rivet rod are riveted to each other is made of aluminum, which has a relatively low strength, the rivet rod is easily riveted into the first component. At the same time, by providing a first groove on the outer surface of the rivet rod along the circumference and allowing a portion of the first component to enter the first groove, the rivet can be engaged with the first component to prevent rotation, thereby better ensuring that the rivet can be reliably riveted to the first component. As a result, not only can the rivet be better prevented from falling off the first component due to vibration or extrusion during the handling process before welding, but the rivet can also be better prevented from loosening and affecting the reliability of the connection between the first component and the second component. Since at least the portion of the second component where it is welded to the nail rod is made of steel, that is, the portion where the second component is welded and the nail rod are made of the same material, the difference in melting point between the portion where the second component is welded and the nail rod is small, and the weldability of the two components is better. This not only facilitates welding the nail rod to the second component, but also effectively prevents welding defects such as incomplete penetration, burn-through, undercuts, cracks, and pores between the nail rod and the second component. Since the component connection structure of the embodiment of the present application can achieve both reliable riveting of the rivet to the first component and reliable welding of the rivet to the second component, the component connection structure of the embodiment of the present application can improve the reliability of the steel-aluminum connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A cross-sectional view of a component connection structure according to an embodiment of the present application;

[0022] Figure 2 for Figure 1 a cross-sectional view of the riveted assembly shown;

[0023] Figure 3 for Figure 2 The schematic diagram of the structure of the rivet shown;

[0024] Figure 4 for Figure 3 A schematic structural diagram of the rivet from another perspective is shown;

[0025] Figure 5 for Figure 3 a cross-sectional view of the rivet shown;

[0026] Figure 6 for Figure 2 A schematic diagram of the cooperation relationship between the rivet and the first component and the riveting die during the riveting process is shown;

[0027] Figure 7 for Figure 6A partial enlarged view of point A in the middle;

[0028] Figure 8 for Figure 6 A schematic diagram of a rivet being riveted into a first component is shown;

[0029] Figure 9 for Figure 1 The diagram shown is a schematic diagram of the cooperation relationship between the riveting assembly and the second component and the welding equipment during the welding process.

[0030] Description of Reference Numerals

[0031] 10. Component connection structure; 11. Riveting assembly; 111. First component; 112. Rivet; 1121. Nail rod; 1121a. First groove; 1121b. Welding point; 1121c. Ring groove; 1122. Head; 1122a. Second groove; 12. Second component; 20. Riveting die; 21. Bottom die; 21a. Protrusion; 21b. Through hole; 22. Sleeve; 23. Punch; 30. Welding equipment; 31. First electrode head; 32. Second electrode head. DETAILED DESCRIPTION

[0032] In the description of the embodiments of the present application, it should be noted that the term "axial" is based on the Figure 4 The orientation or positional relationship shown, these orientation terms are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0033] An embodiment of the present application provides a riveting assembly 11, see Figures 1 to 5 The riveting assembly 11 includes a first component 111 and a rivet 112 .

[0034] The rivet 112 includes a nail rod 1121 and a head 1122 arranged at one end of the nail rod 1121. The nail rod 1121 is provided with a first groove 1121a on the outer surface along the circumference. The first groove 1121a has two opposite sides along the circumference. That is, the first groove 1121a is not a structure connected end to end in the circumference of the nail rod 1121, or in other words, the first groove 1121a is not annular.

[0035] The number of the first groove 1121 a may be one or more. When the number of the first groove 1121 a is more than one, the plurality of first grooves 1121 a may be arranged at intervals along the circumferential direction.

[0036] For example, Figure 3 The shank 1121 of the rivet 112 shown is provided with four first grooves 1121 a .

[0037] Please continue reading Figures 1 to 5 The nail rod 1121 is riveted to the first component 111, and a portion of the first component 111 is located in the first groove 1121a, so that the rivet 112 and the first component 111 are in anti-rotation cooperation.

[0038] The non-rotation fit means that the rivet 112 cannot rotate relative to the first component 111 .

[0039] Specifically, after the nail rod 1121 is riveted into the first component 111, a portion of the first component 111 enters the first groove 1121a under the action of the extrusion force. Since the first groove 1121a is not annular, the groove walls on the opposite sides of the first groove 1121a along the circumferential direction can act as a stop for the portion of the first component 111 located in the first groove 1121a, thereby preventing the rivet 112 from rotating relative to the first component 111.

[0040] Another embodiment of the present application provides a component connection structure 10, see Figure 1 The component connection structure 10 includes a second component 12 and a riveting assembly 11 provided in any embodiment of the present application.

[0041] The material of the rivet 112 is steel. The specific type of steel is not limited. For example, it can be carbon steel, alloy steel, etc., wherein carbon steel includes but is not limited to low carbon steel, medium carbon steel, high carbon steel, etc., low carbon steel is steel with a carbon content of less than or equal to 0.25%, medium carbon steel is steel with a carbon content greater than 0.25% and less than or equal to 0.6%, high carbon steel is steel with a carbon content greater than 0.6%, alloy steel includes but is not limited to low strength steel, medium strength steel, high strength steel, ultra-high strength steel, etc., the strength of low strength steel is generally greater than 300 MPa and less than or equal to 600 MPa, the strength of medium strength steel is generally greater than 600 MPa and less than or equal to 800 MPa, the strength of high strength steel is generally greater than 800 MPa and less than or equal to 1200 MPa, and the strength of ultra-high strength steel is generally greater than 1200 MPa.

[0042] At least part of the portion where the first component 111 and the nail rod 1121 are riveted is made of aluminum. That is to say, the portion where the first component 111 and the nail rod 1121 are riveted may be entirely made of aluminum, or part of the portion where the first component 111 and the nail rod 1121 are riveted may be made of aluminum. For example, the first component 111 may be a multi-layer structure, in which at least one layer is made of aluminum, and in addition to this, at least one layer is not made of aluminum, and the nail rod 1121 is simultaneously inserted into the multiple layers of the first component 111.

[0043] In addition, it should be noted that when the material of the parts where the first component 111 and the nail rod 1121 are riveted is all aluminum, the material of the entire first component 111 can be aluminum, or the material of the parts where the first component 111 and the nail rod 1121 are riveted is aluminum, and among the other parts of the first component 111 that are not riveted to the nail rod 1121, the material of at least one part is not aluminum.

[0044] The specific type of aluminum is not limited, for example, it can be pure aluminum, alloy aluminum, etc.

[0045] The second component 12 is welded to the end of the nail rod 1121 away from the head 1122, and at least the part where the second component 12 is welded to the nail rod 1121 is made of steel. That is to say, the entire second component 12 can be made of steel, or the part where the second component 12 is welded to the nail rod 1121 can be made of steel, and among the other parts of the second component 12 that are not welded to the nail rod 1121, at least one part is not made of steel.

[0046] The specific type of steel used in the second component 12 is not limited, for example, it can be carbon steel, alloy steel, etc. In addition, the second component 12 can use the same type of steel as the rivet 112, or different types of steel.

[0047] Specifically, the component connection structure 10 adopts two processes. The first process is to rivet the rivet 112 to the first component 111. After riveting, the end of the rivet rod 1121 away from the head 1122 forms an exposed welding point 1121b.

[0048] See also Figure 9 The second process is to abut the first electrode head 31 of the welding equipment 30 against the side of the second component 12 away from the rivet 112, and abut the second electrode head 32 of the welding equipment 30 against the side of the head 1122 of the rivet 112 away from the second component 12. After the first electrode head 31 and the second electrode head 32 are energized, the second component 12 and the welding point 1121b are thermally melted, so that the second component 12 and the welding point 1121b are welded together. In other words, the second component 12 can be welded to the end of the nail rod 1121 away from the head 1122 by resistance welding.

[0049] See also Figure 2 In order to facilitate welding of the end of the nail rod 1121 away from the head 1122 to the second component 12 , the end of the nail rod 1121 away from the head 1122 may protrude from the first component 111 .

[0050] The length L of the end of the nail rod 1121 that is away from the head 1122 and that protrudes from the first component 111 can be adjusted as needed. Preferably, the length L of the end of the nail rod 1121 that is away from the head 1122 and that protrudes from the first component 111 can be 0.5 mm to 0.8 mm (inclusive). For example, the length L can be 0.5 mm, 0.6 mm, 0.8 mm, etc. This size range facilitates welding the end of the nail rod 1121 away from the head 1122 to the second component 12 and can better accommodate thickness tolerances of the second component 12.

[0051] In other embodiments, the end of the nail rod 1121 away from the head 1122 may not protrude from the first component 111. For example, the end of the nail rod 1121 away from the head 1122 may be flush with the outer surface of the first component 111 on the side close to the second component 12.

[0052] Yet another embodiment of the present application provides a car, which includes the component connection structure 10 provided in any embodiment of the present application.

[0053] Specifically, the first component 111 and the second component 12 are two components on a car. For example, the first component 111 and the second component 12 may be two components on the body of the car. The first component 111 and the second component 12 are connected together by rivets 112 to assemble at least a portion of the body structure. In other embodiments, the first component 111 and the second component 12 may also be two components on other structures of the car.

[0054] In the related art, the connection method of connecting aluminum parts and steel parts using fasteners such as rivets or bolts requires that fasteners such as rivets or bolts be inserted into the aluminum parts and steel parts respectively. Since the strength of steel parts is relatively high, the traditional connection method is prone to situations such as rivets failing to penetrate the steel parts, threads on the fasteners failing, or fasteners yielding after tightening. In particular, when the yield strength of the steel parts is high and the plate thickness is thick (for example, the yield strength is higher than 1200Mpa and the plate thickness exceeds 1.4mm), the above situation is more likely to occur. Therefore, in the related art, the reliability of the connection between aluminum parts and steel parts is low.

[0055] The component connection structure 10 of the embodiment of the present application is achieved by riveting the shank 1121 of the rivet 112 to the first component 111 and welding it to the second component 12 to achieve the connection between the first component 111 and the second component 12 . Since the material of the rivet 112 in the embodiment of the present application is steel, and the material of at least part of the portion where the first component 111 and the nail rod 1121 of the rivet 112 are riveted is aluminum, and the strength of aluminum is relatively low, the nail rod 1121 is easy to rivet into the first component 111. At the same time, by providing a first groove 1121a on the circumferential outer surface of the nail rod 1121 and allowing a part of the first component 111 to enter the first groove 1121a, the rivet 112 can be engaged with the first component 111 to prevent rotation, thereby better ensuring that the rivet 112 can be reliably riveted to the first component 111. As a result, not only can the rivet 112 be better prevented from falling off from the first component 111 due to vibration or extrusion during the transportation process before welding, but the rivet 112 can also be better prevented from loosening and affecting the reliability of the connection between the first component 111 and the second component 12. Since at least the portion where the second component 12 is welded to the nail rod 1121 is made of steel, that is, the portion where the second component 12 is welded and the nail rod 1121 are made of the same material, the difference in melting point between the portion where the second component 12 is welded and the melting point of the nail rod 1121 is small, and the weldability of the two is better, which not only facilitates welding of the nail rod 1121 to the second component 12, but also effectively prevents welding defects such as incomplete penetration, burn-through, undercuts, cracks, and pores between the nail rod 1121 and the second component 12. Since the component connection structure 10 of the embodiment of the present application can achieve both reliable riveting of the rivet 112 to the first component 111 and reliable welding of the rivet 112 to the second component 12, the component connection structure 10 of the embodiment of the present application can improve the reliability of the steel-aluminum connection.

[0056] It should be noted that the component connection structure 10 of the embodiment of the present application is not limited to use in automobiles, and the component connection structure 10 of the embodiment of the present application can be used in any other mechanical structure that requires steel-aluminum connection.

[0057] In addition, the riveting assembly 11 of the embodiment of the present application is not limited to setting the material of the rivet 112 to steel and setting the material of at least the portion where the first component 111 and the shank 1121 are riveted to aluminum. In other embodiments, the rivet 112 and the first component 111 can be made of other materials as needed, and the materials of the rivet 112 and the first component 111 can be the same or different, as long as the rivet 112 can be riveted to the first component 111. In addition, the second component 12 welded to the shank 1121 can also be made of other materials, as long as they can be welded to the shank 1121.

[0058] In one embodiment, please refer to Figures 6 to 8 The nail rod 1121 can be riveted to the first component 111 by self-piercing riveting. That is, the rivet 112 can rivet the nail rod 1121 to the first component 111 by self-piercing riveting.

[0059] Self-pierce riveting refers to a riveting method in which the rivet 112 is directly used to penetrate the plate during the riveting process without opening a rivet hole on the plate in advance.

[0060] Specifically, see Figure 6 and Figure 8 During the self-piercing riveting process, the first component 111 can be clamped between the bottom die 21 and the sleeve 22 of the riveting die 20, and the rivet 112 can be placed in the sleeve 22. Then, the punch 23 of the riveting die 20 is driven by a driving device such as a motor to push the rivet 112 toward the first component 111. Under the thrust of the punch 23, the rivet rod 1121 cuts off a portion of the structure on the first component 111 to be riveted into the first component 111. The portion of the first component 111 cut off by the rivet rod 1121 falls into the through hole 21b of the bottom die 21.

[0061] Please continue reading Figure 7 A protrusion 21a can be provided on the side of the bottom mold 21 close to the first component 111. The first component 111 rests on the protrusion 21a, which can facilitate the nail rod 1121 to cut off part of the structure on the first component 111 with the assistance of the protrusion 21a.

[0062] The self-piercing riveting of the nail rod 1121 and the first component 111 can not only simplify the riveting operation steps, but also utilize the fluidity of the material of the first component 111 to squeeze a part of the first component 111 into the first groove 1121a during the process of the nail rod 1121 cutting the first component 111.

[0063] In other embodiments, the nail rod 1121 may be riveted to the first component 111 by opening a rivet hole on the first component 111 .

[0064] In one embodiment, please refer to Figures 3 to 5 The first groove 1121a can pass through the end of the nail rod 1121 away from the head 1122, that is, the end of the first groove 1121a away from the head 1122 has an opening.

[0065] Since the nail rod 1121 is riveted into the first component 111 by pointing the end of the nail rod 1121 away from the head 1122 toward the first component 111 during the riveting process, the first groove 1121a passes through the end of the nail rod 1121 away from the head 1122, which makes it easy for a part of the first component 111 to enter the first groove 1121a during the riveting process.

[0066] In other embodiments, the first groove 1121a may not penetrate the end of the nail rod 1121 away from the head 1122, that is, the end of the first groove 1121a away from the head 1122 may also be closed.

[0067] In one embodiment, please refer to Figure 4 The first groove 1121a has a circumferential width dimension D along the circumference, and the circumferential width dimension D can gradually decrease along the axial direction of the nail rod 1121 toward the head 1122. That is, the farther away from the head 1122, the larger the circumferential width dimension D of the first groove 1121a.

[0068] Since the nail rod 1121 moves roughly axially during the riveting process, the circumferential width dimension D of the first groove 1121a gradually decreases along the axial direction of the nail rod 1121 toward the head 1122, which can also facilitate the entry of a portion of the first component 111 into the first groove 1121a during the riveting process.

[0069] In other embodiments, the circumferential width dimension D of the first groove 1121a may also remain unchanged, which is equivalent to the first groove 1121a being a structure of equal width. Alternatively, the circumferential width dimension D may also change according to other rules, as long as a portion of the first component 111 can enter the first groove 1121a.

[0070] In one embodiment, please refer to Figures 1 to 5 A welding plane can be set at the end of the nail rod 1121 away from the head 1122, and the welding plane is actually the welding point 1121b welded to the second component 12.

[0071] Compared with setting the end of the nail rod 1121 away from the head 1122 into a shape such as a cone with a sharp angle, setting a welding plane at the end of the nail rod 1121 away from the head 1122 can better prevent slipping and the like during welding, thereby facilitating welding the end of the nail rod 1121 away from the head 1122 to the second component 12.

[0072] In one embodiment, please refer to Figures 2 to 5 The outer surface of the nail rod 1121 may further be provided with a circumferentially extending annular groove 1121c. The annular groove 1121c is an annular groove, that is, the annular groove 1121c is a structure that is connected end to end along the circumference of the nail rod 1121. The annular groove 1121c is closed on two opposite axial sides of the nail rod 1121, that is, the annular groove 1121c has no openings on two opposite axial sides of the nail rod 1121. A portion of the first component 111 is located within the annular groove 1121c, so that the first component 111 can axially limit the rivet 112.

[0073] That is, after the shank 1121 is riveted into the first component 111, a portion of the first component 111 can also enter the annular groove 1121c due to the extrusion force. It is understood that the portion of the first component 111 located within the annular groove 1121c and the portion of the first component 111 located within the first recess 1121a are two different portions. For rivets 112 that utilize self-piercing riveting, the fluidity of the material of the first component 111 can be utilized to squeeze a portion of the first component 111 into the annular groove 1121c during the process of the shank 1121 cutting through the first component 111.

[0074] Since the annular groove 1121c is closed on two opposite sides of the axial direction of the nail rod 1121, the groove walls on two opposite sides of the axial direction of the annular groove 1121c can serve as a stop for the portion of the first component 111 located in the annular groove 1121c, so that the first component 111 can serve as an axial limit for the rivet 112, thereby further improving the reliability of the riveting between the rivet 112 and the first component 111.

[0075] In one embodiment, please refer to Figures 2 to 5 , the annular groove 1121c can be located between the first groove 1121a and the head 1122.

[0076] Since the annular groove 1121c is used to enable the first component 111 to axially limit the rivet 112, the annular groove 1121c is located between the first groove 1121a and the head 1122, so that the portion of the nail rod 1121 provided with the first groove 1121a can be riveted into the first component 111 first, thereby better avoiding a part of the first component 111 entering the annular groove 1121c first and affecting the axial movement of the nail rod 1121 during the riveting process.

[0077] In other embodiments, the first groove 1121 a may be located between the annular groove 1121 c and the head 1122 .

[0078] In other embodiments, the annular groove 1121c may not be provided.

[0079] In one embodiment, please refer to Figures 2 to 5 A second groove 1122a located on the outer peripheral side of the nail rod 1121 can also be provided on the side of the head 1122 close to the nail rod 1121, and a portion of the first component 111 is located in the second groove 1122a.

[0080] That is, after the shank 1121 is riveted into the first component 111, a portion of the first component 111 can also enter the second groove 1122a due to the extrusion force. It is understood that the portion of the first component 111 located in the second groove 1122a, the portion located in the first groove 1121a, and the portion located in the annular groove 1121c are three different portions of the first component 111. For rivets 112 that utilize self-piercing riveting, the fluidity of the material of the first component 111 can be utilized during the process of the shank 1121 cutting through the first component 111 to force a portion of the first component 111 into the second groove 1122a.

[0081] The second groove 1122 a is provided to increase the ejection force of the rivet 112 , thereby further improving the riveting reliability between the rivet 112 and the first component 111 .

[0082] In one embodiment, please refer to Figure 3 The second groove 1122a can be arranged on the outer peripheral side of the nail rod 1121, that is, the second groove 1122a is annular.

[0083] Figure 3 The head 1122 of the rivet 112 shown is provided with a second groove 1122 a. In other embodiments, the head 1122 of the rivet 112 may also be provided with multiple second grooves 1122 a, and the multiple second grooves 1122 a are arranged at intervals along the radial direction of the shank 1121.

[0084] The annular second groove 1122 a allows the portion of the first component 111 surrounding the outer circumference of the nail rod 1121 to enter the second groove 112 a , thereby better improving the ejection force of the rivet 112 .

[0085] In other embodiments, the second groove 1122a may not be annular, that is, the second groove 1122a may also adopt a structure similar to the first groove 1121a. For such a second groove 1122a, the head 1122 may be provided with only one second groove 1122a, or multiple second grooves 1122a may be provided at circumferential intervals along the nail rod 1121.

[0086] In the description of this application, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", "in yet other embodiments", or "exemplary" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine different embodiments or examples described in this application and features of different embodiments or examples, unless they are mutually inconsistent.

[0087] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. A riveting assembly, characterized in that: include: first component; A rivet comprising a shank and a head disposed at one end of the shank, wherein a first groove is disposed on an outer surface of the shank along a circumferential direction, the first groove having two opposite sides along the circumferential direction; the shank is riveted to the first component, and a portion of the first component is located in the first groove, so that the rivet and the first component are prevented from rotating.

2. The riveting assembly according to claim 1, characterized in that: There are multiple first grooves, and the multiple first grooves are arranged at intervals along the circumferential direction.

3. The riveting assembly according to claim 1 or 2, characterized in that: The first groove passes through an end of the nail rod away from the head.

4. The riveting assembly according to claim 1 or 2, characterized in that: The first groove has a circumferential width along the circumference, and the circumferential width gradually decreases along the axial direction of the nail rod toward the head.

5. The riveting assembly according to claim 1 or 2, characterized in that: The end of the nail rod facing away from the head has a welding plane; and / or, One end of the nail rod facing away from the head protrudes from the first component.

6. The riveting assembly according to claim 1 or 2, characterized in that: The outer surface of the nail rod is provided with an annular groove extending along the circumferential direction, and the annular groove is closed on two opposite sides along the axial direction of the nail rod. A part of the first component is located in the annular groove, so that the first component limits the rivet axially.

7. The riveting assembly according to claim 6, characterized in that: The annular groove is located between the first groove and the head.

8. The riveting assembly according to claim 1 or 2, characterized in that: The head has a second groove on the outer peripheral side of the nail rod on a side close to the nail rod, and a portion of the first component is located in the second groove.

9. The riveting assembly according to claim 8, characterized in that: The second groove ring is arranged on the outer peripheral side of the nail rod.

10. A component connection structure, characterized in that: include: The riveting assembly according to any one of claims 1 to 9, wherein the rivet is made of steel, and at least a portion of the first component riveted to the rivet rod is made of aluminum; The second component is welded to an end of the nail rod away from the head, and at least the portion where the second component is welded to the nail rod is made of steel.

11. An automobile, characterized in that: include: The component connection structure according to claim 10.

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