A riveting part and a riveting auxiliary tool for connecting and fixing a fender

Abstract

The present invention relates to the technical field of fender connectors, in particular to a riveting part and a riveting auxiliary tool for connecting and fixing a fender, which includes a nail part provided with a tail body, and a limiting groove group is formed on the tail body; a protection part provided with a breakage body. When the protection part is connected to the tail body, the breakage body can enter the limiting groove group; the limiting groove group includes at least two sub-grooves, the number of breakage bodies corresponds to the number of sub-grooves, and the lengths of multiple sub-grooves in the limiting groove group are different; the breakage body can limit the nail part from rotating relative to the protection part, and when the breakage body is damaged, the rotation restriction of the nail part is released. By setting the breakage body and the limiting groove group, the torque received by the nail part is transmitted to the breakage body through the limiting groove group. When the torque is greater than the maximum force that the breakage body can withstand, the breakage body will be damaged, enabling the nail part to rotate at a certain angle, thereby reducing the torque received by the nail part and avoiding mechanical damage to the nail part.

Description

Technical Field

[0001] The present invention relates to the technical field of fender connectors, in particular to a riveting part and a riveting auxiliary tool for connecting and fixing a fender. Background Art

[0002] The vehicle fender is a part of the car body, mainly located above the wheel, which can prevent mud, stones, rainwater and other sundries from splashing onto the car body and pedestrians, protecting the car body from damage. Generally, the fender is fixed to the body frame by bolts, nuts, or a buckle part is riveted on the fender for easy connection to the body frame.

[0003] When fixing the riveting part on the fender by a spin riveting machine, the rotating head of the spin riveting machine rotates and presses down the riveting head, making the riveting head heated due to friction. The heated riveting head becomes soft and is easier to be pressed and deformed. However, in order to prevent the riveting head from rotating when contacting the rotating head, the riveting part needs to be fixed. The fixed riveting part contacts the rotating head, bringing a large torque to the riveting part, which will cause mechanical damage to the riveting part during riveting, affecting its service life, and making the connection of the fender unreliable. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that the riveting part is mechanically damaged due to torque.

[0005] The above technical problem is solved by the following technical solution: The present invention provides a riveting part for connecting and fixing a fender, which includes a nail part provided with a tail body, and a limiting groove group is formed on the tail body;

[0006] A protection part is provided with a breakage body. When the protection part is connected to the tail body, the breakage body can enter the limiting groove group;

[0007] The limiting groove group includes at least two sub-grooves, the number of breakage bodies corresponds to the number of sub-grooves, and the lengths of multiple sub-grooves in the limiting groove group are different; the breakage body can limit the nail part from rotating relative to the protection part, and when the breakage body is damaged, the rotation restriction of the nail part is released.

[0008] In a preferred embodiment of the riveting part for connecting and fixing a fender of the present invention: the tail body includes a tail column and a tail plate connected to the tail column;

[0009] The limiting groove group is formed on the tail plate;

[0010] The protection part has two ends, namely a proximal end and a distal end, and the breakage body is arranged at the proximal end.

[0011] In a preferred embodiment of the riveting part for connecting and fixing the fender according to the present invention: the tail body includes a tail post and a tail plate connected to the tail post;

[0012] At least one sub-slot of the limiting slot group is opened on the radial side wall of the tail post;

[0013] The protection part includes a socket body which can be sleeved outside the tail post, and at least one breakage body is arranged on the radial inner wall of the socket body.

[0014] In a preferred embodiment of the riveting part for connecting and fixing the fender according to the present invention: the tail body includes a tail post;

[0015] The limiting slot group is opened on the radial side wall of the tail post, and a through slot penetrating the limiting slot group and extending to the end of the tail post is also opened on the radial side wall of the tail post;

[0016] The protection part includes a socket body which can be sleeved outside the tail post, and the breakage body is arranged on the radial inner wall of the socket body.

[0017] In a preferred embodiment of the riveting part for connecting and fixing the fender according to the present invention: a positioning port is opened on the protection part.

[0018] A riveting auxiliary tool for assisting the above-mentioned riveting part for connecting and fixing the fender; includes a positioning seat; a locking part, including a locking bolt that can move and is installed on the positioning seat, and a first elastic part connected to the locking bolt; when the protection part is installed on the positioning seat, the first elastic part can push the locking bolt into the positioning port.

[0019] In a preferred embodiment of the riveting auxiliary tool according to the present invention: it further includes a torque sharing part; which includes,

[0020] An inner frame and an arc post, which are arranged inside the positioning seat;

[0021] A second elastic part, which is sleeved outside the arc post;

[0022] The locking bolt penetrates the inner frame, the arc post penetrates the locking bolt, and the locking bolt can press the second elastic part when rotating.

[0023] In a preferred embodiment of the riveting auxiliary tool according to the present invention: a deviation side is further provided on the inner frame, a third elastic part is sleeved at the corresponding position of the arc post and the deviation side, and the locking bolt is located between the second elastic part and the third elastic part.

[0024] In a preferred embodiment of the riveting auxiliary tool of the present invention: The locking bolt includes an insertion body that can be inserted into the positioning opening; a detachment prevention body that is connected to the insertion body and penetrates through the inner frame; and a buckle body that is connected to the detachment prevention body, and the arc column penetrates through the buckle body.

[0025] In a preferred embodiment of the riveting auxiliary tool of the present invention: The positioning seat includes a fixing portion; a convex column provided on the fixing portion; a middle portion mounted on the fixing portion, and both the inner frame and the arc column are mounted on the middle portion; a receiving portion mounted on the fixing portion; and the convex column penetrates through the middle portion and the receiving portion.

[0026] The beneficial effect of the present invention is that by providing a breakage body and a limiting groove group, the torque received by the nail portion is transmitted to the breakage body through the limiting groove group. When the torque is greater than the maximum force that the breakage body can withstand, the breakage body will be damaged, enabling the nail portion to rotate at a certain angle, thereby reducing the torque received by the nail portion and avoiding the problem of mechanical damage to the nail portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention and do not limit the present invention. Among them:

[0028] Figure 1 Shows a schematic diagram of the overall structure of the riveting part;

[0029] Figure 2 Shows a schematic diagram of the structure of the nail portion and the protection portion;

[0030] Figure 3 Shows a schematic diagram of the first embodiment of the limiting groove group and the breakage body;

[0031] Figure 4 Shows a schematic diagram of the second embodiment of the limiting groove group and the breakage body;

[0032] Figure 5 Shows a schematic diagram of the third embodiment of the limiting groove group and the breakage body;

[0033] Figure 6 Shows a schematic diagram of the assembled state of the riveting part;

[0034] Figure 7 Shows a schematic diagram of the overall structure of the riveting auxiliary tool and the riveting part;

[0035] Figure 8 Shows a schematic diagram of the internal structure of the riveting auxiliary tool;

[0036] Figure 9A schematic diagram showing the structure of the torque sharing part and the locking part is shown;

[0037] Figure 10 A schematic diagram showing the specific structure of the torque sharing part is shown;

[0038] Figure 11 Shows Figure 10 Enlarged view of point A in the middle;

[0039] Figure 12 A specific structural schematic diagram of the locking part is shown.

[0040] 100, nail part; 101, tail body; 1011, tail column; 1012, tail plate; 102, limit groove group; 1021, sub-groove; 21a, first sub-groove; 21b, second sub-groove; 21c, third sub-groove; 1022, through groove; 1023, starting end; 1024, end end; 103, rivet head; 104, abutment body; 200, protection part; 201, damage body; 202, near end; 203, far end; 204, sleeve body; 205, positioning port; 300, positioning Seat; 301, fixing part; 302, convex column; 303, middle part; 304, receiving part; 305, recessed platform; 400, locking part; 401, locking bolt; 4011, insert body; 4012, anti-separation body; 4013, buckle body; 402, first elastic part; 500, torque sharing part; 501, inner frame; 5011, deviation side; 502, arc column; 503, second elastic part; 504, third elastic part; 505, rotating body; 506, extension body; L, deviation gap. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with specific implementation methods and drawings.

[0042] The terms used in the present invention are those general terms currently widely used in the art in consideration of the functions of the present invention, but these terms may vary according to the intention of a person of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as a general description based on the meaning of the terms and the present invention.

[0043] Reference Figure 1 and Figure 2, this embodiment provides a riveting part for connecting and fixing a fender, including a nail part 100. The nail part 100 includes a riveting head 103 and a contact body 104 connected to the riveting head 103. When riveting, a hole through which the riveting head 103 can penetrate needs to be opened on the workpiece. When the riveting head 103 passes through the hole on the workpiece, the contact body 104 and the workpiece can fit together. In this embodiment, the nail part 100 is provided with a tail body 101, and a limiting groove group 102 is opened on the tail body 101. The number of the limiting groove groups 102 on the tail body 101 can be one or more.

[0044] This riveting part further includes a protection part 200. The purpose of setting the protection part 200 is to protect the nail part 100. It is provided with a breakage body 201. When the protection part 200 is connected to the tail body 101, the breakage body 201 can enter the limiting groove group 102. When riveting, first connect the protection part 200 and the tail body 101 so that the breakage body 201 enters the limiting groove group 102, and then fix the protection part 200 to restrict the rotation of the protection part 200. When using a rotary riveting machine to process the riveting head 103, the rotating head of the rotary riveting machine rotates and presses down, which can heat the riveting head 103 through rotational friction to make the riveting head 103 soft. At the same time, the softening riveting head 103 is compressed and deformed by the downward pressure of the rotating head, so that the riveting head 103 is riveted on the workpiece.

[0045] The limiting groove group 102 includes at least two sub-grooves 1021. The number of the breakage bodies 201 corresponds to the number of the sub-grooves 1021. The lengths of the multiple sub-grooves 1021 in the limiting groove group 102 are different. The breakage body 201 can restrict the nail part 100 from rotating relative to the protection part 200. When the breakage body 201 is damaged, the rotation restriction of the nail part 100 is released. In this embodiment, the number of the sub-grooves 1021 in each limiting groove group 102 is three, and the number of the breakage bodies 201 is also three. Before riveting, the protection part 200 is sleeved on the tail body 101. After the sleeving is completed, the three breakage bodies 201 respectively extend into the three sub-grooves 1021. When the rotating head of the rotary riveting machine contacts the riveting head 103, due to the limitation of the breakage body 201, the entire nail part 100 cannot rotate, so that friction is generated between the rotating head and the riveting head 103. The heat generated by the friction heats the riveting head 103. In addition, the downward pressure of the rotating head can compress the riveting head 103 to generate deformation.

[0046] During the contact between the rotating head and the riveting head 103, the rotation of the rotating head will bring torsion to the non-rotating riveting head 103. To avoid mechanical damage to the nail part 100 caused by excessive torsion, the torsion received by the nail part 100 is transmitted to the breakage body 201 through the limiting groove group 102. When the torsion is greater than the maximum force that the breakage body 201 can withstand, the breakage body 201 will be damaged, enabling the nail part 100 to rotate by a certain angle, thereby reducing the torsion received by the nail part 100 and avoiding the problem of mechanical damage to the nail part 100.

[0047] In this embodiment, the number of the limiting groove groups 102 is six. The six limiting groove groups 102 are circumferentially distributed around the tail body 101 as the axis. The three sub-grooves 1021 of each limiting groove group 102 are respectively the first sub-groove 21a, the second sub-groove 21b, and the third sub-groove 21c. The sub-groove 1021 closest to the axis of the tail body 101 has the shortest length, which is the first sub-groove 21a, and its length is equivalent to the width of the breakage body 201. When the corresponding breakage body 201 enters the first sub-groove 21a, it can limit the rotation of the nail part 100, making the nail part 100 unable to rotate relative to the protection part 200. In addition, the second sub-groove 21b and the third sub-groove 21c are both arc-shaped grooves and are in a concentric circle relationship. Correspondingly, the six breakage bodies 201 corresponding to the six limiting groove groups 102 are also circumferentially distributed on the protection part 200, and the three breakage bodies 201 in each group of breakage bodies 201 are arranged in a straight line.

[0048] Therefore, when the breakage body 201 enters the sub-groove 1021, it is at the starting end 1023 of the sub-groove 1021. The rotary riveting machine processes the riveting head 103. The breakage body 201 inside the first sub-groove 21a can play a limiting role to prevent the riveting head 103 from rotating. Friction is generated between the rotating head of the rotary riveting machine and the riveting head 103, heating the riveting head 103. When the torsion received by the entire nail part 100 is too large, the nail part 100 transmits the force to the breakage body 201 through the inner groove wall of the sub-groove 1021. The breakage body 201 inside the first sub-groove 21a is damaged, and then the nail part 100 can rotate relative to the protection part 200 to release the torsion received by the riveting. At this time, the remaining breakage bodies 201 move towards the end point 1024 inside the second sub-groove 21b and the third sub-groove 21c until the breakage body 201 reaches the end point 1024 of the second sub-groove 21b first, restricting the rotation of the nail part 100 again. Through this processing method, when the torsion is small, the rotation of the nail part 100 can be restricted, enabling friction to be generated between the rotating head of the rotary riveting machine and the riveting head 103 to heat the riveting head 103. When the torsion is too large, the entire nail part 100 can rotate by a certain angle to release the torsion, avoiding mechanical damage to the nail part 100.

[0049] Please refer to Figure 3, a positioning opening 205 is provided on the protection part 200. Through an external auxiliary structure connected to the positioning opening 205, it can play a role in limiting the protection part 200, restricting the rotation of the protection part 200, and avoiding the problem that when the rotating head of the spin riveting machine contacts the nail part 100, the nail part 100 and the protection part 200 rotate synchronously.

[0050] Please refer to Figure 2 and Figure 3 , as a first implementation manner, the tail body 101 includes a tail column 1011 and a tail plate 1012 connected to the tail column 1011; a limiting groove group 102 is opened on the tail plate 1012; the protection part 200 has two end parts which are a proximal end 202 and a distal end 203 respectively, and a breakage body 201 is arranged at the proximal end 202.

[0051] In this implementation manner, the tail column 1011 and the tail plate 1012 are in a concentric circle relationship and are arranged at the end of the nail part 100 away from the riveting head 103. Preferably, they are integrally formed with the nail part 100 as a whole. The limiting groove group 102 is opened on the side of the tail plate 1012 facing the tail column 1011. When the protection part 200 is installed on the tail body 101, the proximal end 202 of the protection part 200 fits with the tail plate 1012, and the breakage body 201 on the proximal end 202 enters the interior of the corresponding limiting groove group 102. When the nail part 100 contacts the rotating head of the spin riveting machine, the breakage body 201 plays a role in limiting the nail part 100 inside the limiting groove group 102.

[0052] Please refer to Figure 4 , as a second implementation manner, the tail body 101 includes a tail column 1011 and a tail plate 1012 connected to the tail column 1011; at least one sub-groove 1021 of the limiting groove group 102 is opened on the radial side wall of the tail column 1011; the protection part 200 includes a sleeve body 204 which can be sleeved outside the tail column 1011, and at least one breakage body 201 is arranged on the radial inner wall of the sleeve body 204.

[0053] In this embodiment, the socket body 204 is a tubular structure that can be sleeved outside the tail post 1011, and its inner diameter is adapted to the column diameter of the tail post 1011. The number of sub-slots 1021 in each limiting slot group 102 is three. Among the three sub-slots 1021, the first sub-slot 21a is directly opened on the radial side wall of the tail post 1011 and penetrates to the end of the tail post 1011 away from the tail plate 1012. At the same time, the number of limiting slot groups 102 is six. When the socket body 204 is sleeved outside the tail post 1011, the breakage body 201 can be more easily aligned with the sub-slots 1021. Only need to insert the breakage body 201 on the radial inner wall of the socket body 204 into the first sub-slot 21a, and then sleeve the socket body 204 outside the tail post 1011, so that the breakage body 201 and the limiting slot group 102 can be in one-to-one correspondence. In this embodiment, the connection efficiency between the socket body 204 and the tail post 1011 can be improved, thereby improving the production efficiency.

[0054] Please refer to Figure 5 , as a third implementation method, the tail body 101 includes a tail post 1011; a limiting slot group 102 is opened on the radial side wall of the tail post 1011, and a through slot 1022 that penetrates the limiting slot group 102 and extends to the end of the tail post 1011 is also opened on the radial side wall of the tail post 1011; the protection part 200 includes a socket body 204, the socket body 204 can be sleeved outside the tail post 1011, and the breakage body 201 is arranged on the radial inner wall of the socket body 204.

[0055] In this embodiment, there is no need to set the tail plate 1012. All the limiting slot groups 102 are opened on the tail post 1011, and all the breakage bodies 201 are integrally formed on the radial inner wall of the socket body 204. One end of the socket body 204 is in a closed state. When the socket body 204 is sleeved outside the tail post 1011, the breakage body 201 and the through slot 1022 are sleeved corresponding to each other. When the tail post 1011 touches the end of the socket body 204 in the closed state, the position of the breakage body 201 corresponds to the position of the sub-slot 1021.

[0056] At the same time, the number of sub-slots 1021 is one less than the number of breakage bodies 201, and the through slot 1022 restricts the rotation of the nail part 100 in the initial state instead of the first sub-slot 21a in the above embodiment.

[0057] Please refer to Figures 7 to 9 , this embodiment also proposes a riveting auxiliary tool for assisting the above-mentioned riveting parts for fender connection and fixation; including a positioning seat 300; during processing, the positioning seat 300 can be installed on the workbench of the rotary riveting machine.

[0058] The riveting auxiliary tool includes a locking part 400. The locking part 400 includes a locking bolt 401 that is movably installed on the positioning seat 300, and a first elastic part 402 connected to the locking bolt 401. When the protection part 200 is installed on the positioning seat 300, the first elastic part 402 can push the locking bolt 401 into the positioning port 205. In this embodiment, the number of positioning ports 205 is two, the number of locking parts 400 is two, and the number of first elastic parts 402 is also two. The elastic force of the first elastic part 402 can maintain the state where the locking bolt 401 is inserted into the positioning port 205. When the locking bolt 401 is inserted into the positioning port 205, it can play a role in limiting the protection part 200, restricting the rotation of the protection part 200, and thus restricting the rotation of the nail part 100. Therefore, the riveting auxiliary tool plays an auxiliary effect.

[0059] In another embodiment, the riveting auxiliary tool further includes a torque sharing part 500; it includes an inner frame 501 and an arc column 502, which are arranged inside the positioning seat 300; a second elastic part 503, which is sleeved outside the arc column 502; the locking bolt 401 penetrates the inner frame 501, and the arc column 502 penetrates the locking bolt 401. When the locking bolt 401 rotates, it can press the second elastic part 503. By setting the torque sharing part 500, when the rotating head of the riveting machine touches the riveting head 103, the entire nail part 100 can rotate by a certain angle as the torque increases, thereby helping the nail part 100 share the torque.

[0060] In this embodiment, the inner frame 501 is used to stabilize the locking bolt 401. The arc column 502 and the inner frame 501 have a common center of circle with the positioning seat 300. A slope is provided at the positioning port 205 of the protection part 200. When positioning the riveting part on the fixed seat, the locking bolt 401 will contact the slope of the protection part 200 and move to press the first elastic part 402. When the position of the locking bolt 401 corresponds to the position of the positioning port 205, the elastic force of the first elastic part 402 can push the locking bolt 401, and part of the locking bolt 401 enters the positioning port 205.

[0061] As Figures 10 to 12 , when the rotating head of the riveting machine touches the riveting part, the frictional force will bring torque to the riveting part. For example, if the rotating head rotates clockwise, the riveting part will have a clockwise torque, and the protection part 200 in the riveting part will have a tendency to rotate clockwise. At this time, the protection part 200 drives the locking bolt 401 to rotate synchronously, so that the locking bolt 401 rotates clockwise along the arc column 502 to press the second elastic part 503. Through the rotation of the locking bolt 401 and the protection part 200, the nail part 100 can obtain a rotation angle that increases as the torque increases, avoiding the problem of excessive mechanical damage caused by the nail part 100 being unable to rotate due to excessive torque.

[0062] As the rotation angle of the locking bolt 401 increases, the elastic force generated by pressing the second elastic part 503 also becomes greater and greater, and the rotation angle that the locking bolt 401 can rotate will also become smaller and smaller. When the torsion force is too large and cannot drive the locking bolt 401 to continue pressing the second elastic part 503, the breakage body 201 on the protection part 200 is damaged, so that the nail part 100 obtains a certain rotation angle relative to the protection part 200 to continue releasing the torsion force.

[0063] In another embodiment, the inner frame 501 is further provided with a deviation side 5011. A third elastic part 504 is sleeved at the corresponding position of the arc column 502 and the deviation side 5011. The locking bolt 401 is located between the second elastic part 503 and the third elastic part 504.

[0064] After processing is completed, when it is necessary to disassemble the protection part 200 from the positioning seat 300, only need to rotate the protection part 200 counterclockwise. The protection part 200 drives the locking bolt 401 to rotate counterclockwise along the arc column 502. The deviation side 5011 can push the locking bolt 401, so that the locking bolt 401 moves away from the protection part 200 and disengages from the inside of the positioning port 205.

[0065] Among them, the deviation side 5011 on the inner frame 501 deviates away from the center of the inner frame 501, and is used to push the locking bolt 401 to move away from the protection part 200. Without external force, the second elastic part 503 and the third elastic part 504 are used to maintain the initial position of the locking bolt 401.

[0066] The locking bolt 401 includes an insertion body 4011 that can be inserted into the positioning port 205; a detachment prevention body 4012 that is connected to the insertion body 4011 and penetrates the inner frame 501; a buckle body 4013 that is connected to the detachment prevention body 4012, and the arc column 502 penetrates the buckle body 4013. The detachment prevention body 4012 is a cylinder with variable diameters at both ends, and the diameters of both ends of the detachment prevention body 4012 are greater than the diameter of the middle region. An arc groove is provided on the inner frame 501. To prevent the entire locking bolt 401 from rotating, a rotating body 505 is installed inside the arc groove. The rotating body 505 has two surfaces that fit the inner frame 501. The detachment prevention body 4012 penetrates the rotating body 505, and the detachment prevention body 4012 can slide relative to the rotating body 505. The rotating body 505 can prevent the detachment prevention body 4012 from rotating horizontally relative to the inner frame 501. An extension body 506 is also provided on the inner frame 501, and the deviation side 5011 is one side of the extension body 506. When the insertion body 4011 is inserted inside the positioning port 205, a deviation gap L will be generated between the plane at the end of the detachment prevention body 4012 and the arc surface of the radially outer wall of the protection part 200. After processing is completed, when the protection part 200 needs to be removed, rotate the protection part 200 counterclockwise. The protection part 200 drives the entire locking bolt 401 to rotate counterclockwise. At this time, the buckle body 4013 presses the third elastic part 504. As the locking bolt 401 rotates, the extension body 506 can enter the deviation gap L, causing the detachment prevention body 4012 to abut against the deviation side 5011. Finally, under the abutment of the deviation side 5011, the insertion body 4011 detaches from the inside of the positioning port 205, and the unlocking of the protection part 200 can be completed.

[0067] The buckle body 4013 has a buckle groove, and the width of the buckle groove is adapted to the diameter of the arc column 502, and the length of the buckle groove is greater than the diameter of the arc column 502.

[0068] The positioning seat 300 includes a fixing part 301; a convex column 302 provided on the fixing part 301; a middle part 303 installed on the fixing part 301, and both the inner frame 501 and the arc column 502 are installed on the middle part 303; a receiving part 304 installed on the fixing part 301; and the convex column 302 penetrates the middle part 303 and the receiving part 304.

[0069] A reserved hole is provided on the fixing part 301 to facilitate fixing the fixing part 301 on the processing workbench of the spin riveting machine. The middle part 303 and the receiving part 304 are positioned on the fixing part 301 through the convex column 302, so that the middle part 303 and the receiving part 304 cannot rotate relative to the fixing part 301. In addition, a concave platform 305 is provided at the top of the receiving part 304. When the riveting part is placed on the concave platform 305, the abutting body 104 or the tail plate 1012 of the riveting part can enter the inside of the concave platform 305, playing a role in supporting and limiting the riveting part. For example Figure 8, showing the state where the tail plate 1012 of the riveted part enters the inside of the concave table 305.

[0070] By providing a detachable middle part 303 and installing both the locking part 400 and the torque sharing part 500 on the middle part 303, when damage occurs, the repair work can be completed by replacing the middle part 303.

[0071] Finally, it should be noted that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A riveting auxiliary tool, characterized in that: For assisting in installing a riveting part for connecting and fixing a fender; the riveting part for connecting and fixing the fender includes, A nail part (100) which is provided with a tail body (101), and a limiting groove group (102) is opened on the tail body (101); A protection part (200) which is provided with a breakage body (201). When the protection part (200) is connected to the tail body (101), the breakage body (201) can enter the limiting groove group (102); The limiting groove group (102) at least includes two sub-grooves (1021), the number of the breakage bodies (201) corresponds to the number of the sub-grooves (1021), and the lengths of the multiple sub-grooves (1021) in the limiting groove group (102) are different; the breakage body (201) can limit the nail part (100) from rotating relative to the protection part (200), and when the breakage body (201) is damaged, the rotation restriction of the nail part (100) is released; The riveting auxiliary tool includes, A positioning seat (300); A locking part (400), which includes a locking bolt (401) that can move and is installed on the positioning seat (300), and a first elastic part (402) connected to the locking bolt (401); When the protection part (200) is installed on the positioning seat (300), the first elastic part (402) can push the locking bolt (401) into the positioning port (205) internally.

2. The riveting auxiliary tool according to claim 1, characterized in that: The tail body (101) includes a tail post (1011) and a tail plate (1012) connected to the tail post (1011); The limiting groove group (102) is opened on the tail plate (1012); The protection part (200) has two end parts which are a proximal end (202) and a distal end (203) respectively, and the breakage body (201) is arranged at the proximal end (202).

3. The riveting auxiliary tool according to claim 1, characterized in that: The tail body (101) includes a tail post (1011) and a tail plate (1012) connected to the tail post (1011); At least one sub-groove (1021) of the limiting groove group (102) is opened on the radial side wall of the tail post (1011); The protection part (200) includes a sleeve body (204) which can be sleeved on the outside of the tail post (1011), and at least one breakage body (201) is arranged on the radial inner wall of the sleeve body (204).

4. The riveting auxiliary tool according to claim 1, characterized in that: The tail body (101) includes a tail post (1011); The limiting groove group (102) is opened on the radial side wall of the tail post (1011), and a through groove (1022) which penetrates the limiting groove group (102) and extends to the end of the tail post (1011) is also opened on the radial side wall of the tail post (1011); The protection part (200) includes a sleeve body (204) which can be sleeved on the outside of the tail post (1011), and the breakage body (201) is arranged on the radial inner wall of the sleeve body (204).

5. The riveting auxiliary tool according to any one of claims 1 to 4, characterized in that: A positioning port (205) is opened on the protection part (200).

6. The riveting auxiliary tool according to claim 5, characterized in that: It also includes a torque sharing part (500); it includes, An inner frame (501) and an arc post (502) which are arranged inside the positioning seat (300); The second elastic part (503) is sleeved outside the arc-shaped column (502); The locking bolt (401) penetrates through the inner frame (501), the arc-shaped column (502) penetrates through the locking bolt (401), and when the locking bolt (401) rotates, it can press the second elastic part (503).

7. The riveting auxiliary tool according to claim 6, characterized in that: The inner frame (501) is further provided with a deviation side (5011), a third elastic part (504) is sleeved at the corresponding position of the arc-shaped column (502) and the deviation side (5011), and the locking bolt (401) is located between the second elastic part (503) and the third elastic part (504).

8. The riveting auxiliary tool according to claim 7, wherein: The locking bolt (401) includes An insertion body (4011) that can be inserted into the positioning port (205); An anti-disengagement body (4012) that is connected to the insertion body (4011), and the anti-disengagement body (4012) penetrates through the inner frame (501); A buckle body (4013) that is connected to the anti-disengagement body (4012), and the arc-shaped column (502) penetrates through the buckle body (4013).

9. The riveting auxiliary tool according to claim 8, characterized in that: The positioning seat (300) includes A fixing part (301); A convex column (302) provided on the fixing part (301); A middle part (303) installed on the fixing part (301), and both the inner frame (501) and the arc-shaped column (502) are installed on the middle part (303); A receiving part (304) installed on the fixing part (301); The convex column (302) penetrates through the middle part (303) and the receiving part (304).

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