Riveting device and riveting equipment for metal piece

Abstract

The utility model discloses a riveting device and riveting equipment for a metal piece. The riveting device is used for riveting a nut to a riveting through hole of the metal piece. The riveting device comprises a base, a nut positioning assembly and a riveting punch, and the base is provided with a groove corresponding to the metal piece in shape and used for containing the metal piece; at least part of the nut positioning assembly is arranged in the groove, and the nut positioning assembly corresponds to the riveting through hole in the metal piece and is used for positioning the nut; and the riveting punch is used for riveting a nut into the riveting through hole of the metal piece. The nut is positioned through the nut positioning assembly, the situation that in the process that the nut is riveted through the riveting punch, the riveting efficiency is low due to the fact that the nut shifts is avoided, the metal piece is contained in the base, the metal piece is positioned through the groove in the base, shifting of the metal piece in the riveting process can be avoided, and the riveting efficiency is improved. By positioning the metal piece and the nut, the working efficiency of riveting the nut on the metal piece is improved, and the use experience of a user on the riveting device is improved.

Description

Technical Field

[0001] This application relates to the field of metal processing technology, and in particular to a riveting device and riveting equipment for metal parts. Background Technology

[0002] In the existing technology, during the process of riveting nuts onto metal, the riveting punch squeezes the nut during riveting, which may cause the nut to shift or fall off, resulting in poor riveting accuracy and a high scrap rate of the workpiece after metal riveting. Utility Model Content

[0003] To address the aforementioned technical problems, this application provides a riveting device for metal parts, used to rivet a nut to the metal part, wherein the metal part has at least one riveting through hole, and the riveting device includes:

[0004] The base has a groove corresponding to the shape of the metal part for receiving the metal part;

[0005] A nut positioning assembly is at least partially disposed within the groove and corresponds to the riveting through hole, for positioning the nut;

[0006] A riveting punch, used to rivet the nut into the riveting through hole.

[0007] The nut positioning assembly includes a connector, a support rod, and a positioning pin. The connector is connected to the base, the first end of the support rod is connected to the connector, the second end of the support rod is connected to the positioning pin, and the positioning pin is at least partially disposed in the groove. The positioning pin is used to position the nut.

[0008] The base has a threaded hole and a through hole on the side away from the groove. One end of the through hole is connected to the threaded hole, and the other end is connected to the groove. The connector is provided with a thread that mates with the threaded hole so that the connector is threadedly connected to the base. The support rod passes through the through hole, and the positioning pin is at least partially exposed in the groove.

[0009] The positioning pin is inserted into the threaded hole of the nut to position the nut, and the radial cross-sectional shape of the positioning pin is an arc shape.

[0010] Each of the nut positioning assemblies further includes an elastic element, which is sleeved on the support rod. The connecting member and the support rod are arranged in a stepped manner along the central axis of the nut positioning assembly. One end of the elastic element abuts against the connecting member, and the other end is used to abut against the nut and the metal part.

[0011] The riveting device further includes a metal positioning block, which is disposed on the base and forms a gap with the groove wall of the groove. At least a portion of the metal part is received in the gap to position the metal part.

[0012] Wherein, the bottom wall of the groove of the base, corresponding to the riveting through hole, protrudes outward relative to the rest.

[0013] The metal part has at least two riveting through holes, and the riveting device has a corresponding number of riveting punches, the positions of which correspond one-to-one with the riveting through holes.

[0014] To address the aforementioned technical problems, this application also provides a riveting device, including the riveting apparatus described above, for riveting a nut to a riveting through hole in a metal part.

[0015] The riveting equipment further includes a first mold frame and a second mold frame, which are arranged at intervals in the vertical direction. The riveting punch is disposed on the surface of the first mold frame near the second mold frame, and the base is disposed on the surface of the second mold frame near the first mold frame.

[0016] The first mold frame moves closer to the second mold frame, causing the riveting punch to move closer to the metal part on the base. The riveting punch is used to rivet the nut onto the metal part.

[0017] The beneficial effects of this application are as follows: Unlike existing technologies, the riveting device of this application is used to rivet a nut onto a riveting through hole in a metal part. The riveting device includes a base, a nut positioning assembly, and a riveting punch. The base has a groove corresponding to the shape of the metal part for accommodating the metal part. The nut positioning assembly is at least partially disposed within the groove and corresponds to the riveting through hole on the metal part for positioning the nut. The riveting punch is used to rivet the nut into the riveting through hole of the metal part. By positioning the nut with the nut positioning assembly, the low riveting efficiency caused by nut displacement during the riveting process by the riveting punch is avoided. Furthermore, the base accommodates the metal part, and the groove on the base positions the metal part, also preventing displacement during riveting. By positioning the metal part and the nut, the efficiency of riveting the nut onto the metal part is improved, enhancing the user experience of the riveting device. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] in:

[0020] Figure 1 This is a top view schematic diagram of an embodiment of the riveting device of this application;

[0021] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of the riveting device along section line I-I';

[0022] Figure 3 This is a schematic diagram of the structure of one embodiment of the nut positioning assembly of this application;

[0023] Figure 4 This is a schematic diagram of an arc shape;

[0024] Figure 5 This is a schematic diagram of the structure of an embodiment of the riveting equipment of this application.

[0025] Reference numerals: Riveting equipment A; Riveting device 1; Base 11; Groove 111; Threaded hole 112; Through hole 113; Metal part positioning block 114; Nut positioning assembly 12; Connector 121; Support rod 122; Positioning pin 123; Riveting punch 13; Pressing part 14; First mold frame 2; Second mold frame 3. Detailed Implementation

[0026] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0027] In the following description, specific details such as particular system architectures, interfaces, and technologies are presented for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of this application.

[0028] In this application, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0029] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Additionally, the character " / " generally indicates that the preceding and following related objects are in an "or" relationship. Furthermore, "many" in this application means two or more. Moreover, the term "at least one" in this application means any combination of at least two of any one or more of a plurality of objects. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C. Furthermore, the terms "first," "second," and "third" in this application are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features.

[0030] To address the problem of low efficiency in riveting nuts and metal parts in the prior art, this application provides a riveting device for metal parts, wherein the metal part has at least one riveting through hole, and the riveting device is used to rivet a nut into the riveting through hole of the metal part.

[0031] Please see Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of an embodiment of the riveting device of this application. Figure 2 yes Figure 1 A cross-sectional view of the riveting device along section line I-I'. The riveting device 1 provided in this application embodiment includes a base 11, a nut positioning assembly 12, and a riveting punch 13.

[0032] The base 11 has a groove 111 corresponding to the shape of the metal part for accommodating the metal part; the nut positioning assembly 12 is at least partially disposed in the groove 111 and is disposed corresponding to the riveting through hole of the metal part for positioning the nut at the riveting through hole; the riveting punch 13 is used to rivet the nut into the riveting through hole.

[0033] Specifically, since the base 11 has a groove 111 corresponding to the shape of the metal part, the groove 111 can position the metal part when it is placed in it. The nut positioning assembly 12 is at least partially disposed in the groove 111 and corresponds to the riveting through hole of the metal part, thus positioning the nut to be riveted into the riveting through hole. Furthermore, the riveting punch 13 can rivet the positioned nut to the positioned riveting through hole on the metal part, achieving precise riveting of the nut on the metal part.

[0034] In one embodiment, the metal part can be first placed in the groove 111 for positioning. At this time, since the nut positioning component 12 located in the groove 111 corresponds to the riveting through hole, the nut positioning component 12 can pass through the riveting through hole. Then, the nut can be placed on the nut positioning component 12 passing through the riveting through hole, and the nut positioning component 12 positions the nut. Then, the riveting punch 13 rivets the nut into the riveting through hole.

[0035] In this embodiment, by setting a base 11 to accommodate and position the metal part, and setting a nut positioning component 12 to position the nut, the problem of low riveting efficiency caused by displacement of the metal part or nut during the riveting process can be avoided, thereby improving the riveting efficiency of the nut on the metal part and enhancing the user's experience of using the riveting device 1.

[0036] Optionally, please refer to the following: Figure 2 and Figure 3 , Figure 3 This is a schematic diagram of the structure of an embodiment of the nut positioning assembly of this application. The nut positioning assembly 12 provided in this application embodiment includes a connector 121, a support rod 122 and a positioning pin 123.

[0037] The connector 121 is connected to the base 11, the first end of the support rod 122 is connected to the connector 121, the second end of the support rod 122 is connected to the positioning pin 123, and the positioning pin 123 is at least partially disposed in the groove 111. The positioning pin 123 is used to position the nut.

[0038] Specifically, the radial cross-sectional shape of the positioning pin 123 can be smaller than the through hole size of the riveting through hole and similar to the threaded hole of the nut. Therefore, the positioning pin 123 can be inserted into the riveting through hole and the threaded hole of the nut to position the nut.

[0039] Optionally, a threaded hole 112 and a through hole 113 are provided on the side of the base 11 away from the groove 111. One end of the through hole 113 is connected to the threaded hole 112, and the other end is connected to the groove 111. The connector 121 is provided with a thread that mates with the threaded hole 112 so that the connector 121 is threadedly connected to the base 11. The support rod 122 passes through the through hole 113, and the positioning pin 123 is at least partially exposed in the groove 111.

[0040] The extension direction of the threaded hole 112 and the through hole 113 can be perpendicular to the plane where the bottom wall of the groove 111 is located. The nut positioning assembly 12 can be screwed into the base 11 through the threaded hole 112 on the side of the base 11 away from the groove 111. Specifically, the connector 121 of the nut positioning assembly 12 can cooperate with the threaded hole 112 to realize the threaded connection between the nut positioning assembly 12 and the base 11, so that the nut positioning assembly 12 can be detachably fixed on the base 11.

[0041] After the connector 121 is threadedly connected to the threaded hole 112, the support rod 122 and the positioning pin 123 can be inserted into the through hole 113 communicating with the threaded hole 112, and at least part of the positioning pin 123 is exposed in the groove 111 through the through hole 113.

[0042] The threaded hole 112 and the through hole 113 work together to fix the nut positioning assembly 12 to the base 11, with at least a portion of the nut positioning assembly 12 positioned in the groove 111 to position the nut. Because the nut positioning assembly 12 is fixed to the base 11, it prevents the nut positioning assembly 12 from moving due to the pressure of the riveting punch 13 during riveting, thus improving the positioning efficiency of the nut positioning assembly 12 and the riveting efficiency of the riveting device 1.

[0043] As mentioned above, the positioning pin 123 is inserted into the threaded hole of the nut to position the nut. In one embodiment, the radial cross-sectional shape of the positioning pin 123 is an arc shape.

[0044] For details, please refer to Figure 4 , Figure 4 This is a schematic diagram of a superior arc. Circle D is divided into two parts, D1 and D2, by a straight line E. Both D1 and D2 are arcs. The area of ​​arc D1 is larger than the area of ​​arc D2. Therefore, arc D1 is a superior arc and arc D2 is a inferior arc.

[0045] By setting the radial cross-sectional shape of the positioning pin 123 to be an arc shape, the contact friction between the positioning pin 123 and the nut can be reduced, and a certain amount of movement space can be provided between the positioning pin 123 and the threaded hole of the nut. As a result, after the riveting punch 13 rivets the nut, the positioning pin 123 can be smoothly separated from the nut, reducing the difficulty of demolding the riveted metal part on the base 11.

[0046] In one embodiment, if the radial cross-sectional shape of the positioning pin 123 is a complete circle, since the positioning pin 123 needs to position the nut, the radial cross-sectional dimension of the positioning pin 123 should correspond to the threaded hole size of the nut in order to achieve nut positioning. If the radial cross-sectional dimension of the positioning pin 123 is smaller than the threaded hole size of the nut, there will be too much space between the positioning pin 123 and the threaded hole of the nut, and the central axis of the nut positioning assembly 12 cannot be guaranteed. Figure 3 The dotted line in the diagram represents the central axis of the nut positioning assembly 12. If the dotted line overlaps with the central axis of the nut, the nut may be eccentrically positioned with respect to the positioning pin 123, thus affecting the positioning effect of the nut. If the radial cross-sectional dimension of the positioning pin 123 is larger than the threaded hole size of the nut, the positioning pin 123 cannot pass through the threaded hole of the nut, and the positioning pin 123 cannot position the nut.

[0047] In this embodiment, by setting the radial cross-sectional shape of the positioning pin 123 to an arc shape, it is possible to ensure that when the positioning pin 123 passes through the threaded hole of the nut, the central axis of the nut positioning assembly 12 overlaps with the central axis of the nut, and the positioning pin 123 accurately positions the nut. Furthermore, since the cross-sectional shape of the positioning pin 123 is arc-shaped, the outer wall of the positioning pin 123 will not be in complete contact with the threaded hole wall of the nut, which reduces the contact friction between the positioning pin 123 and the nut. This allows the positioning pin 123 to be easily separated from the nut after riveting, meaning that the metal part can be easily demolded from the base 11, reducing the difficulty of demolding the metal part and avoiding the situation where the metal part is forcibly separated from the base 11 due to the difficulty of demolding, which would cause deformation of the metal part. This improves the practicality of the riveting device 1.

[0048] In one embodiment, the arc-shaped cross-sectional area of ​​the positioning pin 123 can occupy two-thirds of the area of ​​the complete circle, so as to reduce the contact friction between the positioning pin 123 and the nut while making the central axis of the nut positioning assembly 12 overlap with the central axis of the nut, thereby reducing the difficulty of demolding the metal parts after riveting.

[0049] If the arc-shaped cross-sectional area of ​​the positioning pin 123 is too small, for example, only one-third of a complete circle (considered an inferior arc shape), then, similar to the case where the cross-sectional area of ​​the positioning pin 123 is too small, there will be excessive movement space between the positioning pin 123 and the threaded hole of the nut. This will prevent the central axis of the nut positioning assembly 12 from overlapping with the central axis of the nut, thus preventing the nut from being positioned at the riveting through hole and affecting riveting efficiency. Furthermore, if the positioning pin 123 itself is small in size, and the arc-shaped cross-sectional area is small, the strength of the positioning pin 123 cannot be guaranteed. The positioning pin 123 may deform under the pressure of the riveting punch 13, affecting the positioning of the nut and impacting riveting efficiency.

[0050] In summary, this embodiment of the application improves the nut riveting accuracy of metal parts by setting the nut positioning component 12 to position the nut. Furthermore, since the radial cross-sectional shape of the positioning pin 123 is an arc shape, it reduces the demolding difficulty of the riveted metal parts, improves the practicality and riveting efficiency of the riveting device 1, and enhances the user's experience with the riveting device 1.

[0051] Optionally, each nut positioning assembly 12 further includes an elastic element (not shown), which is sleeved on the support rod 122. The connecting member 121 and the support rod 122 are arranged in a stepped manner along the central axis of the nut positioning assembly. One end of the elastic element abuts against the connecting member 121, and the other end is used to abut against the nut and the metal part.

[0052] Specifically, when the metal part is placed into the groove 111 and the nut is placed in the riveting through hole on the metal part, the metal part and the nut will contact one end of the elastic element. When the riveting punch 13 rivets the nut into the riveting through hole, the riveting punch 13 will squeeze the metal part and the nut, and the metal part and the nut will move towards the connecting member 121. Since one end of the elastic element abuts against the connecting member 121, the metal part will compress the elastic element.

[0053] After riveting is completed, the riveting punch 13 moves away from the metal part. At this time, the compressive force received by the end of the elastic element that abuts against the metal part decreases, the elastic element returns to its original length, and applies a force away from the connecting member 121 to the metal part, popping the metal part out and separating the metal part from the base 11. This further reduces the demolding difficulty of the riveted metal part and improves the user's experience with the riveting device 1.

[0054] Optionally, please refer back to the previous section. Figure 1 The riveting device 1 may also include a metal positioning block 114, which is disposed on the base 11 and forms a gap in the groove wall of the groove 111. At least a portion of the metal part is received in the gap to position the metal part.

[0055] Specifically, the metal part positioning block 114 can be set at both ends of the groove 111, forming a gap with the groove wall of the groove 111. The shape of the gap can correspond to the shape of the end of the metal part. Thus, when the metal part is placed in the groove 111, the end of the metal part is located in the gap. The metal part positioning block 114 and the groove 111 cooperate to position the metal part, preventing the metal part from shifting during the riveting process and improving the riveting efficiency of the nut on the metal part.

[0056] Optionally, the bottom wall of the groove 111 of the base 11, corresponding to the riveting through hole, protrudes outward relative to the rest.

[0057] Specifically, Figure 1 Regions B and C are the parts of the bottom wall corresponding to the riveting through hole. Regions B and C can protrude outward relative to other regions. Thus, when the metal part is received in the groove 111, only regions B and C are in contact with the metal part. When the riveting punch 13 rivets the nut at the riveting through hole, regions B and C can support the riveting through hole, preventing the riveting punch 13 from squeezing and deforming the metal part.

[0058] In one embodiment, the specific location and number of outwardly protruding areas on the bottom wall can be determined according to the location and number of riveting through holes on the metal part. When the number of riveting through holes on the metal part increases, the number of outwardly protruding areas on the bottom wall can also increase accordingly. This application does not impose any restrictions on this.

[0059] In another embodiment, the special structural design where the bottom wall of the groove 111 protrudes outward relative to the riveting through hole compared to other parts further reduces the difficulty of demolding the riveted metal part. Specifically, if the entire area of ​​the bottom wall is of the same height, that is, when the metal part is contained in the groove 111, the entire bottom wall will be in contact with the metal part. During riveting by the riveting punch 13, the punch 13 compresses the metal part, reducing the air pressure between the metal part and the bottom wall. Therefore, after the metal part is riveted, the pressure difference makes it difficult to demold the metal part easily in a short time.

[0060] In this embodiment, the portion of the bottom wall corresponding to the riveting through hole protrudes outward relative to other portions. The metal part is housed in the groove 111 and only contacts the corresponding portion. Therefore, during the riveting process of the riveting punch 13, the air pressure between the metal part and the bottom wall will not change significantly. That is, after riveting, the metal part will not be unable to be demolded due to air pressure difference. Through the special structural setting of the portion of the bottom wall corresponding to the riveting through hole protruding outward relative to other portions, the difficulty of demolding the riveted metal part on the base 11 is further reduced, and the user's experience with the riveting device 1 is further improved.

[0061] Optionally, the metal part has at least two riveting through holes, and the riveting device 1 has a corresponding number of riveting punches 13, the positions of which correspond one-to-one with the riveting through holes.

[0062] Specifically, when there are at least two riveting through holes on the metal part, the riveting device 1 can have a corresponding number of riveting punches 13, and the riveting punches 13 correspond one-to-one with the riveting through holes, so as to realize that multiple riveting punches 13 can rivet nuts at multiple riveting through holes at the same time, thereby improving the riveting efficiency of the riveting device 1 and improving the riveting quality of nuts on the metal part, thus avoiding deformation of the metal part after riveting.

[0063] In one embodiment, if there are multiple riveting through holes on the metal part, and only one riveting punch 13 is provided in the riveting device 1, then the riveting punch 13 needs to rivet the nuts at the riveting through holes on the metal part respectively. Since there is only one riveting punch 13, when the metal part is positioned by the base 11, the position of the riveting punch 13 needs to be moved so that the riveting punch 13 corresponds to each riveting through hole for riveting. However, it cannot be guaranteed that the riveting punch 13 can correspond to the riveting through hole every time it moves. When the riveting punch 13 moves incorrectly, it will affect the riveting accuracy and efficiency of the nuts at the riveting through holes.

[0064] When the metal part is curved, using only one riveting punch 13 in the riveting device 1 not only reduces the efficiency of riveting nuts at multiple riveting through holes, but may also cause deformation of the metal part. Specifically, because the metal part is curved, during the riveting process at one of the riveting through holes, the riveting punch 13 needs to compress both the metal part and the nut to complete the riveting operation. This compressive force of the riveting punch 13 may affect the curved structure of the metal part, leading to deformation of the metal part after riveting and increasing the scrap rate of the product.

[0065] In this embodiment, by setting riveting punches 13 corresponding to the number of riveting through holes, and with each riveting punch corresponding to a riveting through hole, nuts at multiple riveting through holes can be riveted simultaneously, ensuring the consistency and symmetry of riveting, improving the quality and efficiency of riveting, and the simultaneous action of multiple riveting punches 13 on multiple riveting through holes of the metal part makes the force distribution uniform, avoids the deformation of the metal part, and improves the practicality of the riveting device 1.

[0066] In one embodiment, please continue to refer to Figure 2 The riveting device 1 also includes a pressure member 14, on which at least two riveting punches 13 can be mounted. The pressure member 14 can move closer to the metal part, simultaneously moving all the riveting punches 13 closer to the metal part, so that all the riveting punches 13 can simultaneously rivet the nuts at the riveting through holes. The surface shape of the pressure member near the metal part can correspond to the shape of the metal part. Therefore, when the pressure member 14 moves the riveting punches 13 closer to the metal part, the pressure member 14 first contacts the metal part, pressing down on its surface. Because the surface shape of the pressure member in contact with the metal part corresponds to the shape of the metal part, the pressure member 14 can position the metal part without applying additional force to any area of ​​the metal part, thus preventing deformation. After the pressure member 14 positions the metal part, the riveting punches 13 then rivet the nuts at the riveting through holes, further improving riveting efficiency.

[0067] In summary, the riveting device 1 provided in this application uses the cooperation of the base 11 and the nut positioning assembly 12 to position the metal part and the nut, thereby improving the riveting quality and efficiency of the nut on the metal part. Simultaneously, the design of the radial cross-sectional shape of the positioning pin 123 in the nut positioning assembly 12 and the design of the elastic element in the nut positioning assembly 12 reduce the difficulty of demolding the riveted metal part. Furthermore, when the metal part has at least two riveting through holes, the riveting device 1 can include a riveting punch 13 corresponding to the number of riveting through holes to simultaneously rivet the nuts at the riveting through holes, further improving the riveting efficiency of the nuts on the metal part.

[0068] This application also provides a riveting device; please refer to [link / reference]. Figure 5 , Figure 5 This is a schematic diagram of a riveting device according to an embodiment of the present application. The riveting device A provided in this embodiment includes the riveting device 1 as described above, used to rivet a nut into a riveting through hole in a metal part.

[0069] Optionally, the riveting device A further includes a first mold frame 2 and a second mold frame 3, the first mold frame 2 and the second mold frame 3 are arranged at intervals in the vertical direction, the riveting punch 13 is disposed on the surface of the first mold frame 2 near the second mold frame 3, and the base 11 is disposed on the surface of the second mold frame 3 near the first mold frame 2.

[0070] The first mold frame 2 can move closer to the second mold frame 3, causing the riveting punch 13 to move closer to the metal part on the base 11. Then the riveting punch 13 can rivet the nut onto the metal part. After the riveting is completed, the first mold frame 2 can move away from the second mold frame 3, causing the riveting punch 13 to move away from the base 11. Then the riveted metal part can be demolded from the base 11.

[0071] The above description is merely an embodiment of this application and does not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A riveting device for metal parts, characterized in that, For riveting a nut to the metal part, the metal part having at least one riveting through hole, the riveting device comprising: The base has a groove corresponding to the shape of the metal part for receiving the metal part; A nut positioning assembly is at least partially disposed within the groove and corresponds to the riveting through hole, for positioning the nut; A riveting punch is used to rivet the nut into the riveting through hole.

2. The riveting device according to claim 1, characterized in that, The nut positioning assembly includes a connector, a support rod, and a positioning pin. The connector is connected to the base. The first end of the support rod is connected to the connector, and the second end of the support rod is connected to the positioning pin. The positioning pin is at least partially disposed within the groove and is used to position the nut.

3. The riveting device according to claim 2, characterized in that, The base has a threaded hole and a through hole on the side away from the groove. One end of the through hole is connected to the threaded hole, and the other end is connected to the groove. The connector is provided with a thread that matches the threaded hole so that the connector is threadedly connected to the base. The support rod passes through the through hole, and the positioning pin is at least partially exposed in the groove.

4. The riveting device according to any one of claims 2 or 3, characterized in that, The positioning pin is inserted into the threaded hole of the nut to position the nut, and the radial cross-sectional shape of the positioning pin is an arc shape.

5. The riveting device according to claim 2, characterized in that, Each of the nut positioning assemblies further includes an elastic element, which is sleeved on the support rod. The connector and the support rod are arranged in a stepped manner along the central axis of the nut positioning assembly. One end of the elastic element abuts against the connector, and the other end is used to abut against the nut and the metal part.

6. The riveting device according to claim 1, characterized in that, The riveting device further includes a metal positioning block, which is disposed on the base and forms a gap with the groove wall of the groove. At least a portion of the metal part is received in the gap to position the metal part.

7. The riveting device according to claim 1, characterized in that, The bottom wall of the groove of the base, corresponding to the riveting through hole, protrudes outward relative to the rest.

8. The riveting device according to claim 1, characterized in that, The metal part has at least two riveting through holes, and the riveting device has a corresponding number of riveting punches, the positions of the riveting punches corresponding one-to-one with the riveting through holes.

9. A riveting device, characterized in that, Includes the riveting device as described in any one of claims 1-8, for riveting a nut to a riveting through hole in a metal part.

10. The riveting equipment according to claim 9, characterized in that, The riveting equipment further includes a first mold frame and a second mold frame, which are arranged at intervals along the vertical direction. The riveting punch is disposed on the surface of the first mold frame near the second mold frame, and the base is disposed on the surface of the second mold frame near the first mold frame. The first mold frame moves closer to the second mold frame, causing the riveting punch to move closer to the metal part on the base. The riveting punch is used to rivet the nut onto the metal part.

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