Riveting parts and there is its riveted structureTechnical field
The present invention relates to a kind of riveting process technology, particularly prevent the technical field that riveted structure relatively rotates.
Background technique
Riveting nut and sheet metal being linked together by the mode of riveting extensively should in cold stamping industry, fixed riveted joint workpiece (is also claimed to be rigidly connected, namely the workpiece be riveted together can not have mutual activity), if it is mutually movable to produce between nut and sheet material after riveted joint, then there will be product cannot be urgent when later process rigging screw, causes losing efficacy.The riveting nut of current use has hexagonal riveting nut and cylinder riveting nut, both riveting qualities are comparatively large by the impact of process control, if process control occurs abnormal, driving torque is less than normal, easily cause between nut and sheet material, there is the exception of mutually rotating, quality problems occur.
For improve riveting nut and sheet material rivet after moment of torsion, prevent from mutual rotation occurs between nut and sheet material, Chinese patent CN200720120588.X provides a kind of riveting nut of wounded in the battle tooth.But the colored tooth of the riveting nut that this patent provides is the lower surface being assembled in step, the area of contact of itself and step lower surface is little, and can not bear larger torsion, easily come off, twisting strength is low, cannot be applied to the occasion that moment of torsion is higher.Further, the technological scheme of this patent directly will spend in tooth press-in sheet material, easily damages sheet material, as generation sheet material is torn or the quality problems such as distortion
Summary of the invention
An aspect of of the present present invention is to solve the low technical problem of existing riveting nut twisting strength.
The object of the invention is to be achieved through the following technical solutions: a kind of riveting parts, comprise cylinder and be arranged on the end cap of described cylinder one end, the outer surface of described cylinder is also provided with at least one boss.
Preferably, described boss is also connected with described end cap.
Preferably, described cylinder and described end cap integrally formed, described cylinder and described end cap all weld with described boss.
Preferably, described boss, cylinder and end cap are integrally formed.
Preferably, described boss is four, and described four boss are uniformly distributed in the outer surface of described cylinder, and are in sustained height.
Preferably, described riveting parts is hexagonal riveting nut or cylinder riveting nut.
Another aspect of the present invention is the technical problem that riveting parts in order to solve wounded in the battle tooth and sheet material easily damage sheet material when riveting.
The object of the invention is to be achieved through the following technical solutions: a kind of riveted structure, comprise riveting parts and workpiece to be riveted, described workpiece to be riveted offers riveted joint through hole, and described riveting parts is above-mentioned riveting parts, and the periphery of described riveted joint through hole is provided with the groove corresponding with described boss.
The invention provides a kind of riveting parts and there is its riveted structure.Described riveting parts comprises cylinder and is arranged on the end cap of described cylinder one end, and the outer surface of described cylinder is also provided with at least one boss.Described riveted structure comprises riveting parts and workpiece to be riveted, and described workpiece to be riveted offers riveted joint through hole, and described riveting parts is above-mentioned riveting parts, and the periphery of described riveted joint through hole is provided with the groove corresponding with described boss.First, described boss arranges on described cylinder, can increase stress surface, and Impact direction and surface of contact adapt to, and it is stressed more even, improves twisting strength; Secondly, riveted structure owing to employing above-mentioned riveting parts, and is provided with the groove corresponding with described boss, effectively prevents situation about relatively rotating between riveting parts and riveted joint workpiece.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of riveting parts of the present invention;
Fig. 2 is that the present invention rivets workpiece schematic top plan view;
Fig. 3 is that riveting parts of the present invention assembles generalized section with riveted joint workpiece;
Wherein, riveting parts 1, end cap 2, cylinder 3, boss 4, workpiece 5 to be riveted, riveted joint through hole 6, groove 7.
Embodiment
With reference to the accompanying drawings and the present invention is described in detail in conjunction with the embodiments.
See Fig. 1, according to a kind of riveting parts 1 provided by the invention, comprise cylinder 3 and the end cap 2 being arranged on described cylinder 3 one end, the outer surface of described cylinder 3 is also provided with at least one boss 4.Boss 4 is arranged on the outer surface of cylinder 3, and it is stressed more even, and Impact direction and surface of contact adapt to, and the surface of contact of itself and cylinder 3 can extend along the length direction of cylinder 3, and enlarge active surface, provides higher twisting strength.
Preferably, described boss 4 is also connected with described end cap 2.Be connected with end cap 2, add a stress surface, improve its twisting strength.
Preferably, described cylinder 3 and described end cap 2 integrally formed, described cylinder 3 and described end cap 2 all weld with described boss 4.
Preferably, described boss 4, cylinder 3 and end cap 2 are integrally formed.Three in one is shaped, and its twisting strength is maximized.
Preferably, described boss 4 is four, and described four boss 4 are uniformly distributed in the outer surface of described cylinder 3, and are in sustained height.Four boss 4 are set, when it is connected with riveted joint workpiece 5, had both ensure that four sides uniform force, avoid monolateral stressed excessive and cause the situation such as to tear of welding work pieces to occur, also save the material of riveting nut.
Preferably, described riveting parts 1 is hexagonal riveting nut or cylinder riveting nut.
Shown in Fig. 2 and Fig. 3, the invention provides a kind of riveted structure, described riveted structure comprises above-mentioned riveting parts 1 and workpiece to be riveted 5, and described workpiece 5 to be riveted offers riveted joint through hole 6, the periphery of described riveted joint through hole 6 is provided with the groove 7 corresponding with described boss 4.In the present embodiment, riveted joint workpiece 5 is sheet metal.During riveted joint, first riveting parts 1 is loaded in the riveted joint through hole 6 of described workpiece to be riveted 5, the boss 4 on riveting parts 1 is engaged mutually with the groove 7 of described riveted joint through hole 6 periphery, then carries out riveting.Boss 4 on riveting parts 1 is engaged mutually with the groove 7 on workpiece 5 to be riveted, can form twisting resistance, thus improves the driving torque of riveted joint, and it is mutually movable to prevent between riveting parts 1 and workpiece to be riveted 5, improves the mechanical property of riveted joint.
The explanation of above embodiment just understands technological scheme of the present invention and core concept thereof for helping.It should be pointed out that those skilled in the art under the teachings of the present invention, do not need by creative work, also can make the alternative be equal to the present invention or obvious mode of texturing.Therefore, under the prerequisite not departing from design of the present invention and principle, all modes that is equivalent alternative or obviously modification are all within protection scope of the present invention.