Riveting structure
The alternating area design of the rivet studs and the setting of the buffer ring solve the stability and safety issues of the riveted structure when fixing the workpiece, achieving higher stability and durability of the riveted structure.
Patent Information
- Application Number
- CN202422680420.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-05
AI Technical Summary
The existing riveting structure is less effective in fixing workpieces and is prone to breakage, loosening of the bite, etc., which affects long-term stability and safety.
The first and second areas of the rivet studs are alternately arranged, and a buffer ring is provided on the rivet studs in the second area. The lateral and axial loads are buffered by the unloading grooves and the buffer rings, thereby enhancing the stability and safety of the structure.
It improves the stability and safety of the riveting points, reduces the phenomenon of breakage and loosening, and enhances the fixing effect on the workpiece.
Smart Images
Figure CN223399052U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of assembly, in particular to a riveting structure. Background Art
[0002] Welding is a common assembly method with widespread applications. Resistance welding and fusion welding are two common welding methods. While these techniques effectively connect materials, problems such as cold joints and desoldering often occur in practice, leading to insufficient joint strength and compromising overall product reliability. Furthermore, resistance welding and fusion welding operate at high temperatures, which can easily lead to thermal deformation of the workpiece and uneven localized melting.
[0003] Cold riveting technology offers a solution that doesn't rely on a heat source, avoiding the problem of workpiece property changes caused by temperature fluctuations. However, when two or more workpieces are fixed together using existing riveted joints, cyclic loads and internal stresses can cause the joint to break or become loose, seriously affecting the long-term stability and safety of the riveted joint.
[0004] It can be seen that the existing riveting structure has the problem of poor workpiece fixing effect. Utility Model Content
[0005] The embodiment of the utility model provides a riveting structure to solve the problem that the existing riveting structure has a poor fixing effect on the workpiece.
[0006] The present invention provides a riveted structure, comprising: a first riveted portion, the first riveted portion comprising a rivet stud cap and a rivet stud connected to the rivet stud cap, the rivet stud comprising a first region and a second region, the first regions and the second regions being alternately arranged along an extension direction of the rivet stud, and the outer diameter of the rivet stud in the first region is greater than the outer diameter of the rivet stud in the second region, a buffer ring being provided in the second region, the inner diameter of the buffer ring being adapted to the outer diameter of the rivet stud in the second region, and the outer diameter of the buffer ring being greater than the outer diameter of the rivet stud in the first region;
[0007] The second riveting part includes a rivet cap and a rivet connected to the rivet cap, and the rivet is sleeved and fixed inside the rivet column.
[0008] Optionally, at least two stress-relieving grooves are provided on the rivet stud located in the first region, and the extending direction of the stress-relieving grooves is the same as the extending direction of the rivet stud.
[0009] Optionally, the stress unloading grooves are arranged in an array on the rivet studs in the first area.
[0010] Optionally, along the extension direction of the rivet stud, the length of the rivet stud in the first region is equal to the length of the rivet stud in the second region.
[0011] Optionally, a buffer ring is provided on the rivet stud in one of the second regions, and along the extension direction of the rivet stud, the length of the buffer ring is equal to the length of the rivet stud in the corresponding second region.
[0012] Optionally, a plurality of buffer rings are provided on the rivet stud in one of the second regions, and along the extension direction of the rivet stud, the sum of the lengths of the plurality of buffer rings is less than the length of the rivet stud in the corresponding second region;
[0013] Wherein, the rivet column in the second area is provided with a number of ring grooves corresponding to the plurality of buffer rings, and one buffer ring is provided in one ring groove.
[0014] Optionally, a first groove is formed on the rivet column cap, the opening direction of the first groove is away from the rivet column, and a first shock-absorbing pad is provided in the first groove;
[0015] and / or,
[0016] The rivet cap is provided with a second groove, the opening direction of the second groove is away from the rivet, and a second shock-absorbing pad is provided in the second groove.
[0017] Optionally, a first rivet head is provided at one end of the rivet column away from the rivet column cap, and a second rivet head adapted to the first rivet head is provided on the rivet cap, and the first rivet head is riveted to the second rivet head.
[0018] Optionally, the rivet is provided with an external thread, and the inside of the rivet column is provided with an internal thread, and the external thread is adapted to the internal thread. When the rivet column and the rivet move toward each other to a preset position through the internal thread and the external thread, the first rivet head and the second rivet head are riveted.
[0019] Optionally, the outer surface of the rivet stud in the first area is provided with serrations.
[0020] In an embodiment of the present invention, a riveted structure is provided, in which the first area and the second area of the rivet column are alternately arranged, and the second area of the rivet column can buffer the load and internal stress acting in the lateral direction of the riveted structure; and a buffer ring is also provided on the rivet column in the second area to further buffer the lateral force and absorb the extrusion force exerted on the rivet column, thereby reducing the occurrence of fracture, loose bite, etc. in the riveted structure, improving the stability and safety of the riveted point, and thus enhancing the fixing effect of the riveted structure on the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0022] Figure 1 This is one of the structural diagrams of the riveted structure provided by the embodiment of the present utility model;
[0023] Figure 2 This is the second structural diagram of the riveted structure provided by the embodiment of the present utility model;
[0024] Figure 3 This is the third structural diagram of the riveted structure provided by the embodiment of the present utility model. DETAILED DESCRIPTION
[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0026] The terms "first," "second," and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the structures used in this manner are interchangeable where appropriate, so that the embodiments of the present invention can be implemented in an order other than those illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.
[0027] like Figures 1 to 3As shown, an embodiment of the present invention provides a riveting structure, comprising: a first riveted portion 10, the first riveted portion 10 comprising a rivet stud cap 101 and a rivet stud 102 connected to the rivet stud cap 101, the rivet stud 102 comprising a first region and a second region, the first region and the second region being alternately arranged along the extension direction of the rivet stud 102, and the outer diameter of the rivet stud 102 located in the first region is larger than the outer diameter of the rivet stud 102 located in the second region, a buffer ring 103 is provided in the second region, the inner diameter of the buffer ring 103 is adapted to the outer diameter of the rivet stud 102 in the second region, and the outer diameter of the buffer ring 103 is larger than the outer diameter of the rivet stud 102 in the first region;
[0028] The second riveting part 20 includes a rivet cap 201 and a rivet 202 connected to the rivet cap 201 . The rivet 202 is sleeved and fixed inside the rivet column 102 .
[0029] The shape of the rivet stud cap 101 can be designed to be cylindrical, rectangular, cube-shaped, or polygonal to suit different installation requirements. In this embodiment, a cylindrical rivet stud cap 101 is used as an example for illustrative description. When the rivet stud cap 101 has other shapes, the same technical effect can be achieved by adaptively adjusting the position of the rivet stud 102.
[0030] A first region and a second region are provided on the rivet stud 102, and a groove is formed in the rivet stud 102 in the second region so that the outer diameter of the rivet stud 102 in the second region is smaller than the outer diameter of the rivet stud 102 in the first region. In this way, after two or more workpieces are fixed by the riveted structure of this embodiment, the rivet stud 102 in the second region can buffer the load and internal stress acting in the lateral direction of the riveted structure, thereby reducing the occurrence of fracture, loosening of the riveted structure, and the like, thereby improving the stability and safety of the riveted point.
[0031] For example, in a structural connection that must withstand heavy loads, the studs 102 in the first region, with their larger outer diameter, initially come into close contact with the workpiece and bear the primary load. During load transfer, the studs 102 in the first region effectively share the forces acting on the workpiece, providing stable support and thus enhancing the tensile and shear resistance of the studs 102. Subsequently, the studs 102 in the second region, with their smaller outer diameters, alternate axially with the studs 102 in the first region. As the load continues, the studs 102 in the second region relieve and distribute the stress acting on the studs 102. Thus, by alternating between the first and second regions, the studs 102 achieve a structurally optimal balance between primary load bearing and stress unloading. This alternating arrangement allows the studs 102 in the first region to effectively support the primary load, while the studs in the second region evenly unload the load, creating a structure with enhanced impact resistance and durability, thereby ensuring the overall stability and durability of the structure under high load conditions.
[0032] For example, in environments with frequent high and low temperature fluctuations, the studs 102 in the first region have a larger outer diameter. This primarily acts as a buffer in high-temperature environments, distributing the primary stress during thermal expansion and contraction, thereby avoiding concentrated stress caused by temperature rise and maintaining the structural stability of the studs 102. The studs 102 in the second region, alternating with the first region, have a smaller outer diameter, preventing structural embrittlement when the temperature drops, further enhancing the adaptability of the studs 102. This alternating arrangement of the first and second regions provides greater stability for the studs 102 in environments with large temperature fluctuations, ensuring long-term reliability and durability in these environments.
[0033] Furthermore, a buffer ring 103 is provided on the rivet stud 102 in the second region, which can further relieve the extrusion force of the workpiece acting on the riveted structure.
[0034] For example, when a high extrusion force is applied to a workpiece, the workpiece contacts the buffer ring 103 in the second region during the extrusion process. The buffer ring 103 deforms appropriately, distributing the load acting on the stud 102 in the second region and preventing concentrated stress from acting directly on the stud 102. This arrangement effectively offsets most of the load and reduces structural instability caused by stress concentration. When the extrusion force is relatively low, the buffer ring 103 maintains support while maintaining a stable connection between the stud 102 and the workpiece. This adaptive load-releasing design ensures that the stud 102 maintains structural stability under varying load conditions, enhancing its durability.
[0035] Furthermore, when the workpiece contacts the buffer ring 103 in the second region with a higher intensity, the design of the buffer ring 103 not only deforms and absorbs energy, but also adapts the inner diameter of the buffer ring 103 to the outer diameter of the rivet stud 102 in the second region. When the riveted structure is not assembled with the workpiece, the outer diameter of the buffer ring 103 is larger than the outer diameter of the rivet stud 102 in the first region. After the riveted structure is assembled with the workpiece, the buffer ring 103 is compressed, making the outer diameter of the buffer ring 103 equal to the outer diameter of the rivet stud 102 in the first region. This matching design allows the buffer ring 103 to fit more closely to the rivet stud 102 in the second region when subjected to force, thereby providing stronger support. The load applied by the workpiece is evenly transferred to the rivet stud 102 in the second region by the buffer ring 103, preventing the rivet stud 102 from shifting or loosening under high load conditions.
[0036] For example, in high-load applications, the workpiece exerts pressure on the buffer ring 103 in the second region. The inner diameter of the buffer ring 103, which is precisely aligned with the outer diameter of the second region, ensures contact stability. Furthermore, the buffer ring 103 maintains its supportive function during high-load contact, absorbing some of the compressive force. This design effectively offsets most of the load, preventing loosening or structural deformation of the stud 102 due to excessive compression.
[0037] The second riveted part 20 includes a rivet cap 201 and a rivet 202 connected to the rivet cap 201 .
[0038] The shape of the rivet cap 201 can be designed to be cylindrical, rectangular, cube-shaped, or polygonal to suit different installation requirements. In this embodiment, a cylindrical rivet cap 201 is used as an example for illustrative description. If the rivet cap 201 has other shapes, the position of the rivet 202 can be adaptively adjusted to achieve the same technical effect.
[0039] For example, when the assembly begins, the rivet 202 is fixed inside the rivet column 102 , and finally the workpiece is fixed under the cooperation of the first riveting part 10 and the second riveting part 20 .
[0040] For example, during the specific assembly process, one end of the rivet stud 102 of the first riveted part 10 (away from the rivet stud cap 101) is pre-riveted into corresponding rivet holes in multiple stacked workpieces. Subsequently, a hydraulic press applies vertical pressure to the rivet stud cap 101 of the first riveted part 10, allowing the rivet stud 102 of the first riveted part 10 to smoothly pass through the corresponding rivet hole in the workpiece and insert into the workpiece, ensuring a preliminary stable connection between the first riveted part 10 and the workpiece. Next, one end of the rivet 202 of the second riveted part 20 (away from the rivet cap 201) is riveted to the rivet stud 102 of the first riveted part 10. Finally, a hydraulic press applies vertical pressure to the rivet cap 201 of the second riveted part 20, forcing the rivet 202 into the rivet stud 102, thereby achieving a final, stable connection between the second riveted part 20, the workpiece, and the first riveted part 10.
[0041] In an embodiment of the present invention, a riveted structure is provided, in which the first area and the second area of the rivet column are alternately arranged, and the second area of the rivet column 102 can buffer the load and internal stress acting in the lateral direction of the riveted structure; and a buffer ring 103 is also provided on the rivet column 102 in the second area to further buffer the lateral force and absorb the extrusion force exerted on the rivet column 102, thereby reducing the occurrence of fracture, loose bite, etc. in the riveted structure, improving the stability and safety of the riveted point, and thus enhancing the fixing effect of the riveted structure on the workpiece.
[0042] Optionally, at least two unloading grooves 1021 are provided on the rivet stud 102 located in the first region, and the extension direction of the unloading grooves 1021 is the same as the extension direction of the rivet stud 102 .
[0043] In this embodiment, at least two stress-relieving grooves 1021 are provided on the rivet stud 102 in the first region, and the distribution and depth of the stress-relieving grooves 1021 can be designed.
[0044] For example, when two symmetrically distributed stress-relieving grooves 1021 are provided on the stud 102, these grooves are evenly spaced on either side of the stud 102 in the first region, forming a symmetrical layout. This design ensures that during the riveting process, the load is evenly distributed across the two stress-relieving grooves. Thus, the stress-relieving grooves in the stud 102 in the first region buffer the axial load and internal stress acting on the riveted structure, effectively avoiding stress concentration. Specifically, one end of the stud 102 of the first riveted section 10 (away from the stud cap 101) is pre-riveted into corresponding rivet holes in a plurality of stacked workpieces. Subsequently, a hydraulic press applies vertical pressure to the stud cap 101 of the first riveted section 10, allowing the stud 102 of the first riveted section 10 to smoothly pass through the corresponding workpiece rivet holes and insert into the workpiece, ensuring a stable initial connection between the first riveted section 10 and the workpiece. At this point, if the workpiece generates axial forces on the riveted structure, these stresses are dispersed through the stress-relieving grooves 1021, thereby reducing localized deformation. Significantly improves the stability and durability of the riveted structure.
[0045] For example, when three evenly spaced stress-relieving grooves are provided on the stud, these grooves are distributed at equal angles (e.g., 120°) around the stud 102 in the first region. This effectively reduces stress concentration, especially when facing high forces or complex working conditions. Specifically, one end of the stud 102 of the first riveted joint 10 (away from the stud cap 101) is pre-riveted into corresponding rivet holes in multiple stacked workpieces. Subsequently, a hydraulic press applies vertical pressure to the stud cap 101 of the first riveted joint 10, allowing the stud 102 of the first riveted joint 10 to smoothly pass through the corresponding rivet holes in the workpieces and into the workpieces, ensuring a stable initial connection between the first riveted joint 10 and the workpieces. If the workpieces exert axial forces on the riveted structure, the three stress-relieving grooves 1021 act together to more evenly distribute the stress, reducing the stress intensity at specific locations on the stud 102. This design not only improves the stability of the structure but also increases its load-bearing capacity.
[0046] For example, the shape of the unloading groove 1021 may also be adjusted and designed.
[0047] For example, the cross-section of the stress relief groove 1021 is designed to be circular. This arc-shaped stress relief groove 1021 more evenly distributes tensile stress along the extension direction of the rivet stud 102, while reducing stress concentration points. The radius of the arc-shaped stress relief groove is 1 / 6 of the outer diameter of the rivet stud 102, and its depth is 1 / 8 of the outer diameter of the rivet stud 102. This design not only improves the fatigue resistance of the rivet stud 102, but also ensures stable structural strength after repeated use.
[0048] Optionally, the stress unloading grooves 1021 are arranged in an array on the rivet studs 102 in the first region.
[0049] In this embodiment, the number of stress-relieving grooves 1021 arranged on the stud 102 in the first region can be adjusted based on the magnitude of the axial load. Specifically, when the first region of the first riveted joint 10 is subjected to a relatively low load from the hydraulic press, fewer stress-relieving grooves 1021 are provided on the outer surface of the first region. Specifically, one end of the stud 102 of the first riveted joint 10 (away from the stud cap 101) is pre-riveted into corresponding rivet holes in a plurality of stacked workpieces. Subsequently, a hydraulic press applies vertical pressure to the stud cap 101 of the first riveted joint 10, allowing the stud 102 of the first riveted joint 10 to smoothly pass through the corresponding workpiece rivet holes and insert into the workpiece. At this point, the relatively low axial force is transferred through the first region of the stud 102 to the relatively few stress-relieving grooves 1021. These grooves distribute the stress throughout the entire structure of the stud 102, ensuring a stable initial connection between the first riveted joint 10 and the workpiece, thereby reducing localized deformation.
[0050] In an alternative embodiment, when the first region of the first riveted joint 10 is subjected to a significant load from a hydraulic press, a plurality of stress-relieving grooves 1021 are provided on the outer surface of the first region. One end of the stud 102 of the first riveted joint 10 (away from the stud cap 101) is pre-riveted into corresponding rivet holes in a plurality of stacked workpieces. Subsequently, a hydraulic press applies vertical pressure to the stud cap 101 of the first riveted joint 10, allowing the stud 102 of the first riveted joint 10 to smoothly pass through the corresponding workpiece rivet holes and insert into the workpiece. At this point, the significant axial force is transferred from the stud 102 in the first region to the numerous stress-relieving grooves 1021. These grooves distribute the stress throughout the stud 102's overall structure, ensuring a stable initial connection between the first riveted joint 10 and the workpiece, thereby minimizing localized deformation.
[0051] In an embodiment of the present invention, a riveted structure is provided, and the second area of the rivet column 102 can buffer the load and internal stress acting in the transverse direction of the riveted structure; and a buffer ring 103 is also provided on the rivet column 102 in the second area to further buffer the transverse force and absorb the extrusion force exerted on the rivet column 102; in addition, a force unloading groove 1021 is also provided in the first area of the rivet column 102, and the force unloading groove 1021 can buffer the load and internal stress acting in the axial direction of the riveted structure. In this way, the first area and the second area of the rivet column 102 are alternately arranged, which can evenly disperse the forces applied in the transverse and axial directions of the riveted structure, reduce the occurrence of fracture, loose bite and the like in the riveted structure, improve the stability and safety of the riveted point, and thus enhance the fixing effect of the riveted structure on the workpiece.
[0052] Optionally, along the extension direction of the rivet stud 102 , the length of the rivet stud 102 in the first region is equal to the length of the rivet stud 102 in the second region.
[0053] In this embodiment, the length of the first region along the extension direction of the stud 102 is equal to the length of the second region along the extension direction of the stud 102. This further effectively achieves uniform axial distribution of external loads between the first and second regions, thereby enhancing the overall stability of the riveted structure. Specifically, one end of the stud 102 of the first riveted portion 10 (away from the stud cap 101) is pre-riveted into corresponding rivet holes in a plurality of stacked workpieces. When a hydraulic press applies vertical pressure to the stud cap 101 of the first riveted portion 10, the vertical axial force applied by the hydraulic press on the stud cap 101 is evenly distributed in the axial direction between the first and second regions, thereby enhancing the axial load-bearing capacity of the riveted structure and enabling the stud 102 of the first riveted portion 10 to smoothly pass through the corresponding workpiece rivet hole and be inserted into the workpiece, ultimately ensuring a preliminary stable connection between the first riveted portion 10 and the workpiece.
[0054] Optionally, a buffer ring 103 is provided on the rivet stud 102 in a second region, and along the extension direction of the rivet stud 102 , the length of the buffer ring 103 is equal to the length of the rivet stud 102 in the corresponding second region.
[0055] In some optional embodiments, a buffer ring 103 is provided on the rivet column 102 in the second region, and the inner diameter of the buffer ring 103 fits the outer diameter of the rivet column 102 in the second region, thereby preferentially and effectively buffering the first riveted portion 10 from the influence of the lateral force during the riveting process.
[0056] For example, when the first rivet portion 10 has been inserted into multiple stacked workpieces, if the workpieces are affected by external loads, the extrusion stress inside the workpieces will preferentially act on the buffer ring 103 that fits the outer diameter of the second area. The buffer ring 103 can, to a certain extent, reduce the lateral force of the extrusion stress generated inside the workpiece on the rivet column 102.
[0057] For example, along the extending direction of the rivet column 102 , the length of the buffer ring 103 is equal to the length of the rivet column 102 corresponding to the second region thereof, which can effectively buffer the influence of the axial force on the first riveted portion 10 .
[0058] For example, one end of the stud 102 of the first riveted portion 10 (away from the stud cap 101) is pre-riveted into corresponding rivet holes in a plurality of stacked workpieces. When a hydraulic press applies vertical pressure to the stud cap 101 of the first riveted portion 10, the vertical axial force applied by the hydraulic press on the stud cap 101 is evenly distributed in the axial direction between the first and second regions. Simultaneously, because the buffer ring 103 is disposed on the stud 102 in the second region, with the upper and lower ends of the buffer ring 103 respectively abutting against the stud 102 in the second region adjacent to it, the buffer ring 103 can offset the axial force, further enhancing the axial load-bearing capacity of the riveted structure.
[0059] Optionally, a plurality of buffer rings are provided on the rivet stud 102 in a second region, and along the extension direction of the rivet stud 102 , the sum of the lengths of the plurality of buffer rings is less than the length of the rivet stud 102 in the corresponding second region;
[0060] The rivet studs 102 in the second region are provided with ring grooves corresponding in number to and matching the plurality of buffer rings, with one buffer ring being provided in one ring groove.
[0061] In other optional embodiments, a plurality of ring grooves are provided in the rivet studs 102 in the second region, and a plurality of buffer rings matching the ring grooves are provided in the plurality of ring grooves. The ring grooves and the matching buffer rings can be adjusted according to the size of the external load, thereby further alleviating the lateral force on the rivet studs 102 in the second region.
[0062] For example, when the external load is relatively small, fewer ring grooves and matching buffer rings may be provided. Specifically, when the first rivet portion 10 has been inserted into multiple stacked workpieces, if the workpieces are subjected to external loads, the compressive stress within the workpieces will preferentially act on the buffer ring that aligns with the outer diameter of the second region. The buffer ring can, to a certain extent, reduce the lateral force exerted by the compressive stress within the workpiece on the rivet stud 102. Subsequently, the force generated by the micro-deformation of the buffer ring will further act on the side of the rivet stud 102 corresponding to the buffer ring. At this time, the buffer ring, after receiving the micro-lateral force from the buffer ring 103, will offset the lateral force exerted on the rivet stud, thereby enhancing the durability of the structure.
[0063] For example, when the external load is significant, more ring grooves and matching buffer rings are required. Specifically, when the first rivet 10 has been inserted into multiple stacked workpieces, if the workpieces are subjected to external loads, the compressive stress within the workpieces will preferentially act on the buffer ring, which aligns with the outer diameter of the second region. This buffer ring can, to a certain extent, reduce the lateral force exerted by the compressive stress within the workpiece on the rivet stud 102. Subsequently, the lateral force generated by the buffer ring after significant deformation will further act on the side of the rivet stud 102 corresponding to the buffer ring 103. Because the buffer ring abuts the rivet stud, it offsets the lateral force acting on the rivet stud, effectively improving the stability of the structure.
[0064] For example, a plurality of ring grooves are provided in the rivet studs 102 in the second region, and a plurality of buffer rings matching the ring grooves are provided in the plurality of ring grooves. The ring grooves and the matching buffer rings can be adjusted according to the magnitude of the external load, thereby further alleviating the axial force on the rivet studs 102 in the second region.
[0065] For example, when subjected to significant external loads, a larger number of grooves and matching buffer rings are required. Specifically, one end of the stud 102 of the first riveted portion 10 (away from the stud cap 101) is pre-riveted into corresponding rivet holes in multiple stacked workpieces. When a hydraulic press applies vertical pressure to the stud cap 101 of the first riveted portion 10, the vertical axial force exerted by the hydraulic press on the stud cap 101 is evenly distributed along the axial direction of the stud 102 in the first and second regions. The multiple buffer rings mitigate the axial force acting on the second region.
[0066] Optionally, a first groove is formed on the rivet stud cap 101, the opening direction of the first groove is away from the rivet stud 102, and a first shock-absorbing pad is provided in the first groove;
[0067] and / or,
[0068] A second groove is formed on the rivet cap 201 , the opening direction of the second groove is away from the rivet 202 , and a second shock-absorbing pad is provided in the second groove.
[0069] In this embodiment, the stud cap 101 of the first riveted part 10 defines a first groove. The opening of the first groove faces away from the stud 102, and the center of the first groove is coaxial with the end facing away from the stud 102. A first shock-absorbing pad is disposed in the first groove. Specifically, before the first riveted part 10 is operated, the first shock-absorbing pad is placed in the first groove, which is compatible with the first shock-absorbing pad, so that the first shock-absorbing pad and the first groove can be snapped into place. When the operation begins, one end of the stud 102 of the first riveted part 10 (away from the stud cap 101) is pre-riveted into corresponding rivet holes in a plurality of stacked workpieces. When a hydraulic press applies vertical pressure to the stud cap 101 of the first riveted part 10, the vertical force applied in the axial direction by the hydraulic press on the stud cap 101 is preferentially absorbed by the first shock-absorbing pad, which is compatible with the first groove. This reduces damage to the first riveted part 10 during assembly and connection with the workpiece, while also enhancing the reliability of the riveted structure.
[0070] Alternatively, the rivet cap 201 may have a second groove, the opening of which faces away from the rivet and the center of which is coaxial with the end facing away from the rivet 202. A second shock-absorbing pad may be disposed in the second groove. Specifically, before the second riveted portion 20 is operated, the second shock-absorbing pad is placed in the second groove, which is compatible with the second shock-absorbing pad. The second shock-absorbing pad and the second groove may be connected via a snap fastener. When the operation begins, one end of the rivet 202 of the second riveted portion 20 (away from the rivet cap 201) is pre-riveted to the through-hole of the rivet stud 102 inserted into the first riveted portion 10. When the hydraulic press applies vertical pressure to the rivet cap 201 of the second riveted portion 20, the vertical force applied in the axial direction by the hydraulic press on the rivet cap 201 is preferentially absorbed by the second shock-absorbing pad, which is compatible with the second groove. This reduces damage to the second riveted portion 20 during the final fixed assembly of the second riveted portion 20 with the workpiece and the first riveted portion 10, while also enhancing the reliability of the riveted structure.
[0071] Optionally, a first rivet head is provided at one end of the rivet column 102 away from the rivet column cap 101 , and a second rivet head adapted to the first rivet head is provided on the rivet cap 201 , and the first rivet head and the second rivet head are riveted together.
[0072] In this embodiment, one end of the rivet stud 102 of the first riveted portion 10 (the first rivet head, distal from the rivet stud cap 101) is pre-riveted into corresponding rivet holes in a plurality of stacked workpieces. When a hydraulic press applies vertical pressure to the rivet stud cap 101 of the first riveted portion 10, the vertical force applied by the hydraulic press to the rivet stud cap 101 in the axial direction is shared axially by the rivet stud 102 in the first region, the rivet stud 102 in the second region, the buffer ring 103, and the buffer ring. This allows the first riveted portion 10 to be inserted into the plurality of stacked workpieces through the pre-set hole positions. Ultimately, after the first riveted portion 10 is inserted into the plurality of stacked workpieces, the first rivet head passes through the workpieces. Next, one end of the rivet 202 of the second riveted portion 20 (distal from the rivet cap 201) is pre-riveted into the interior of the rivet stud 102 of the first riveted portion 10. Then, a hydraulic press is used to apply vertical pressure to the rivet cap 201 of the second riveted part 20, so that the rivet 202 of the second riveted part 20 smoothly passes through the through hole matching the rivet column 102 of the first riveted part 10 and is inserted into the rivet column 102, so that the first riveted head and the second riveted head are riveted together, thereby achieving a final stable connection between the second riveted part 20 and the workpiece and the first riveted part 10.
[0073] For example, the first rivet head may be a protrusion structure, and the second rivet head may be a notch structure.
[0074] For example, one end of the rivet stud 102 of the first riveted portion 10 (away from the protrusion of the rivet stud cap 101) is pre-riveted into corresponding rivet holes of multiple stacked workpieces. When a hydraulic press applies vertical pressure to the rivet stud cap 101 of the first riveted portion 10, the vertical force applied by the hydraulic press on the rivet stud cap 101 in the axial direction is shared by the rivet stud 102 in the first region, the rivet stud 102 in the second region, the buffer ring 103, and the buffer ring in the axial direction, respectively. This allows the first riveted portion 10 to be inserted into the multiple stacked workpieces through the preset hole position. Ultimately, after the first riveted portion 10 is inserted into the multiple stacked workpieces, the protrusion extends beyond and passes through the workpieces. Next, one end of the rivet 202 of the second riveted portion 20 (away from the rivet cap 201) is pre-riveted into the interior of the rivet stud 102 of the first riveted portion 10. Then, a hydraulic press is used to apply vertical pressure to the rivet cap 201 of the second riveted part 20, so that the rivet 202 of the second riveted part 20 can smoothly pass through the through hole matching the rivet column 102 of the first riveted part 10 and be inserted into the rivet column 102, so that the protrusion structure and the slot structure are engaged, thereby achieving the final stable connection between the second riveted part 20 and the workpiece and the first riveted part 10.
[0075] Optionally, the rivet 202 is provided with an external thread, and the interior of the rivet column 102 is provided with an internal thread, and the external thread is adapted to the internal thread. When the rivet column 102 and the rivet 202 move toward each other to a preset position through the internal thread and the external thread, the first rivet head and the second rivet head are riveted.
[0076] In this embodiment, one end of the stud 102 of the first riveted portion 10 (the first riveted head, distal to the stud cap 101) is pre-riveted into corresponding riveted holes in a plurality of stacked workpieces. An internal thread is formed on the inner side of the stud 102, distal to the first riveted head and coaxial with the stud cap 101. A rotational force is applied to the inner side of the stud 102 of the stud cap 101 of the first riveted portion 10 until the stud cap 101 abuts the corresponding side of the workpiece. The first riveted portion 10 is then inserted into the stacked workpieces through the pre-set hole position. Ultimately, after insertion into the stacked workpieces, the end of the first riveted portion 10 distal to the stud cap 101 (the first riveted head) extends beyond the other side of the workpiece where the stud cap 101 abuts. Next, one end of the rivet 202 of the second riveted portion 20 (away from the rivet cap 201) is pre-riveted to the rivet stud 102 at the end of the first riveted portion 10 away from the rivet stud cap 101. An internal thread is formed on the inner side of the rivet 202 at the end of the rivet 202 away from the second riveted head and coaxial with the rivet cap 201. The outer surface of the rivet 202 is provided with an external thread, and the inner side of the through hole of the rivet stud 102 is provided with an internal thread. A rotational force is applied to the inner side of the rivet cap 201 of the second riveted portion 20, causing the rivet 202 of the second riveted portion 20 to be screwed together via the external thread and the matching internal thread inside the through hole of the rivet stud 102 of the first riveted portion 10, until the first riveted head at the end of the first riveted portion 10 away from the rivet stud cap 101 is engaged with the second riveted head at the end of the second riveted portion 20 away from the rivet cap 201, thereby achieving a secure connection between the riveted structure and the workpiece.
[0077] For example, the external thread provided on the rivet 202 and the internal thread provided and matched inside the rivet stud 102 can be used to recycle and disassemble the riveted structure.
[0078] For example, the outer surface of the rivet 202 is provided with an external thread, and the inner side of the through hole of the rivet column 102 is provided with an internal thread. By applying a reverse rotational force to the inner side of the rivet cap 201 of the second riveted part 20, the first rivet head of the first riveted part 10 away from the end of the rivet column cap 101 and the second rivet head of the second riveted part 20 away from the end of the rivet cap 201 are separated until the rivet 202 of the second riveted part 20 is matched with the inner side of the through hole of the rivet column 102 of the first riveted part 10 through the external thread. Then, by applying a reverse rotational force to the inner side of the rivet stud 102 of the rivet stud cap 101 of the first riveted part 10, the side of the rivet stud cap 101 abutting against the workpiece begins to separate from each other, until the end of the first riveted part 10 (the first riveted head) away from the rivet stud cap 101 after the multiple superimposed workpieces are inserted, is completely separated from the side abutting against the workpiece and the rivet stud cap 101, thus completing the recyclable disassembly of the riveted structure and minimizing the damage to the workpiece.
[0079] Optionally, the outer surface of the rivet stud 102 in the first region is provided with serrations.
[0080] In this embodiment, the outer surface of the stud 102 in the first region is provided with a serration pattern, and threads matching the serration pattern are provided within the holes in the workpiece corresponding to the stud 102 in the first region, thereby enhancing the engagement of the riveted structure with the workpiece. Specifically, one end of the stud 102 in the first riveted portion 10 (the first rivet head, distal to the stud cap 101) is pre-riveted into corresponding rivet holes in a plurality of stacked workpieces. Internal threads are provided on the inner side of the stud 102, distal to the first rivet head and coaxial with the stud cap 101. The outer thread provided with an electric drill is used to pre-tighten the inner thread that matches the inner side of the rivet stud 102 which is coaxial with the rivet stud cap 101 and is away from the first rivet head. The electric drill applies a rotational force to the inner side of the rivet stud 102 of the rivet stud cap 101 of the first riveting part 10. During the riveting process of the first riveting part 10 and the workpiece, the serrations provided on the outer surface of the rivet stud 102 in the first area of the first riveting part 10 engage with the matching threads in the workpiece until the rivet stud cap 101 abuts against the side corresponding to the workpiece. The first riveting part 10 is plugged into the multiple superimposed workpieces through the preset hole position. Finally, after the first riveting part 10 is plugged into the multiple superimposed workpieces, the end (first rivet head) of the first riveting part 10 away from the rivet stud cap 101 extends beyond the other side of the workpiece where the rivet stud cap 101 abuts, thereby further improving the fixing effect of the first riveting part 10 and the workpiece.
[0081] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.
[0082] The embodiments of the present invention are described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present invention, ordinary technicians in this field can also make many forms without departing from the scope of protection of the purpose of the present invention and the claims, all of which are within the protection of the present invention.
Claims
1. A riveted structure, characterized in that: include: a first riveted portion, the first riveted portion comprising a rivet stud cap and a rivet stud connected to the rivet stud cap, the rivet stud comprising a first region and a second region, the first regions and the second regions being alternately arranged along an extension direction of the rivet stud, the outer diameter of the rivet stud in the first region being larger than the outer diameter of the rivet stud in the second region, a buffer ring being provided in the second region, the inner diameter of the buffer ring being adapted to the outer diameter of the rivet stud in the second region, and the outer diameter of the buffer ring being larger than the outer diameter of the rivet stud in the first region; The second riveting part includes a rivet cap and a rivet connected to the rivet cap, and the rivet is sleeved and fixed inside the rivet column.
2. The riveted structure according to claim 1, characterized in that: At least two stress-relieving grooves are provided on the rivet stud located in the first area, and the extending direction of the stress-relieving grooves is the same as the extending direction of the rivet stud.
3. The riveted structure according to claim 2, characterized in that: The unloading grooves are arranged in an array on the rivet studs in the first area.
4. The riveted structure according to claim 1, characterized in that: Along the extending direction of the rivet stud, the length of the rivet stud in the first region is equal to the length of the rivet stud in the second region.
5. The riveted structure according to claim 4, characterized in that: A buffer ring is provided on the rivet post in one of the second regions, and along the extending direction of the rivet post, the length of the buffer ring is equal to the length of the rivet post in the corresponding second region.
6. The riveted structure according to claim 4, characterized in that: A plurality of buffer rings are provided on the rivet stud in one of the second regions, and along the extension direction of the rivet stud, the sum of the lengths of the plurality of buffer rings is less than the length of the rivet stud in the corresponding second region; Wherein, the rivet column in the second area is provided with a number of ring grooves corresponding to the plurality of buffer rings, and one buffer ring is provided in one ring groove.
7. The riveted structure according to claim 1, characterized in that: A first groove is formed on the rivet column cap, the opening direction of the first groove is away from the rivet column, and a first shock-absorbing pad is provided in the first groove; and / or, The rivet cap is provided with a second groove, the opening direction of the second groove is away from the rivet, and a second shock-absorbing pad is provided in the second groove.
8. The riveted structure according to claim 1, characterized in that: A first rivet head is provided at one end of the rivet column away from the rivet column cap, and a second rivet head adapted to the first rivet head is provided on the rivet cap, and the first rivet head is riveted to the second rivet head.
9. The riveted structure according to claim 8, characterized in that: The rivet is provided with an external thread, and the interior of the rivet column is provided with an internal thread, and the external thread is adapted to the internal thread. When the rivet column and the rivet move toward each other to a preset position through the internal thread and the external thread, the first rivet head and the second rivet head are riveted.
10. The riveted structure according to any one of claims 1 to 9, characterized in that: The outer surface of the rivet stud in the first area is provided with serrations.