Riveting piece, riveting assembly and pressing rivet head

Abstract

The invention discloses a riveting piece, a riveting assembly and a pressing rivet head, the riveting piece comprises a body, the body is provided with a supporting face and a limiting groove, and the supporting face is used for supporting a metal plate. The limiting groove comprises a first hole and a first groove, one end of the first hole is opened in the supporting face, the other end of the first hole is communicated with the first groove, materials of the metal plate can flow into the first groove from the first hole and fill the limiting groove, and the anti-rotation effect can be achieved. The first groove is provided with a limiting face deviating from the supporting face so that the anti-disengaging effect can be achieved after the first groove and the metal plate are riveted. Compared with anti-rotation teeth protruding out of the supporting face in the prior art, the sheet metal needs smaller deformation, riveting is easier to achieve, and compared with turning riveting in the prior art, anti-disengaging is achieved, the riveting piece can not deform through the anti-disengaging mode, and it is guaranteed that the strength and connecting performance of the riveting piece are more reliable.

Description

Technical Field

[0001] The invention relates to the field of connecting parts, and in particular to a riveted part, a riveted assembly and a rivet head. Background Art

[0002] Fasteners are a type of mechanical parts used for fastening and connection and are extremely widely used. Various fasteners can be seen on various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, meters and supplies. Riveted nuts are a type of fastener used to connect thin plates or sheet metal. The main riveting structure of existing riveted nuts is a convex tooth and a convex navel. During riveting, the convex navel needs to be riveted and deformed (the convex navel is turned around) to achieve pull-off performance, but this method has the risk of cracking. The convex teeth protrude from the supporting surface, and the material of the sheet metal flows to the side of the convex teeth to achieve torsion resistance. However, since there is a large space between adjacent convex teeth that needs to be filled, the deformation of the sheet metal is large, and riveting is not easy. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology and to provide a riveted part, a riveted assembly and a rivet head.

[0004] To achieve the above objectives, the present invention and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Solution 1: A riveted part, comprising:

[0006] The main body is provided with a supporting surface and a limiting groove, wherein the limiting groove comprises a first hole and a first groove, wherein one end of the first hole opens to the supporting surface and the other end is connected to the first groove, and the first groove is provided with a limiting surface away from the supporting surface.

[0007] Option 2, based on Option 1, the main body also includes a material guide groove, the material guide groove opens to the support surface, the side end of the material guide groove is connected to the first hole and the first groove, and the opening size of the material guide groove is larger than the opening size of the first hole.

[0008] Solution three, based on solution two, the side wall of the material guide trough facing the first hole is an inclined segment or an arc segment.

[0009] Solution 4, based on Solution 1, the support surface includes a support plane and a material guide slope, the material guide slope is located on the inner side of the support plane and extends downwardly along the direction close to the central axis of the main body, and one end of the first hole opens to the material guide slope.

[0010] Solution 5: Based on Solution 1, the rivet is further provided with a positioning hole, and the positioning hole passes through the rivet in the vertical direction.

[0011] Option six, based on options one to five, further includes a convex navel, the convex navel protrudes from the supporting surface, and the limiting groove is located on the outside of the convex navel.

[0012] Solution seven, based on solution six, the diameter of the umbilicus gradually decreases in the direction approaching the supporting surface.

[0013] Option 8, a riveted assembly, comprising a sheet metal and a riveted part as described in any one of Options 1 to 7, wherein the sheet metal is suitable for being supported by the supporting surface and filling the limiting groove.

[0014] Solution 9, a rivet head, suitable for riveting a sheet metal and a rivet member as described in any one of Solution 1 to Solution 7 into one body,

[0015] The riveting head comprises

[0016] Pedestal;

[0017] A boss protrudes from the base, the boss is suitable for clamping the sheet metal together with the supporting surface, and is suitable for moving toward the body to make the material of the sheet metal flow, so that the material of the sheet metal flows into the limiting groove.

[0018] Option 10, based on Option 9, the boss includes a first step and a second step, the second step protrudes from the base, the first step protrudes from the second step, and the outer side walls of the first step and the second step are inclined surfaces and are both inclined outward.

[0019] From the above description of the present invention and its preferred embodiments, it can be seen that, compared with the prior art, the technical solution of the present invention and its preferred embodiments have the following beneficial effects due to the adoption of the following technical means:

[0020] 1. Scheme 1 and its preferred embodiment, a riveted part includes a body, the body is provided with a supporting surface and a limiting groove, and the supporting surface is used to support the sheet metal. The limiting groove includes a first hole and a first groove, one end of the first hole is open to the supporting surface, and the other end is connected to the first groove, the material of the sheet metal can flow into the first groove from the first hole and fill the limiting groove, which can achieve the anti-rotation effect. The first groove is provided with a limiting surface away from the supporting surface to achieve the anti-slip effect after riveting with the sheet metal. Compared with the anti-rotation teeth protruding from the supporting surface in the prior art, the deformation amount required for the sheet metal is smaller, and it is easier to achieve riveting, and compared with the anti-slipping achieved by flip riveting in the prior art, this anti-slipping method can prevent the riveted part from being deformed, thereby ensuring the strength of the riveted part and making the connection performance more reliable.

[0021] 2. In scheme 2 and its preferred embodiment, the material guide trough opens on the supporting surface, the side end of the material guide trough is connected with the first hole and the first trough, the opening size of the material guide trough is larger than the opening size of the first hole, and can have a larger feeding space. The limiting groove is assisted in filling by the material guide trough, so that the limiting groove is filled more fully, and the anti-slip and anti-twist effects are better. At the same time, the material guide trough can also improve the anti-twist effect.

[0022] 3. In scheme three and its preferred embodiment, the side wall of the material guide trough facing the first hole is an inclined section or an arc section to facilitate the sheet metal material to flow into the material guide trough and then flow to the limiting groove, so that the limiting groove is filled more fully.

[0023] 4. In scheme 4 and its preferred embodiments, the supporting surface includes a supporting plane and a material guide slope. The material guide slope is located on the inner side of the supporting plane and extends downwardly along the direction close to the central axis of the main body. One end of the first hole is opened on the material guide slope so that the sheet metal material can be guided to the material guide slope first and then enter the limiting groove, guiding the material in sections to reduce the required riveting force.

[0024] 5. In scheme five and its preferred embodiment, the riveted part is also provided with a positioning hole, which passes through the riveted part in the vertical direction to facilitate the positioning of the riveted part and the sheet metal when riveting, prevent the riveted part from moving, and facilitate the rivet head to apply pressure to the sheet metal.

[0025] 6. Scheme 6 and its preferred embodiment further include a convex navel, which protrudes from the supporting surface to improve the connection strength, and the limiting groove is located on the outside of the convex navel.

[0026] 7. In scheme seven and its preferred embodiment, the diameter of the umbilicus gradually decreases in the direction approaching the supporting surface, so that when the sheet metal material is filled between the umbilicus and the supporting surface, a certain anti-slip effect can be achieved.

[0027] 8. In the eighth solution and its preferred embodiment, a riveted assembly includes a sheet metal and the above-mentioned riveted part, wherein the sheet metal is suitable for being supported by a supporting surface and filled with a limiting groove, so as to have tensile and torsional resistance. It also has the beneficial effects brought by the above-mentioned riveted part.

[0028] 9. In scheme nine and its preferred embodiments, a rivet head is suitable for riveting the sheet metal and the above-mentioned rivet parts into one body. The rivet head includes a base and a boss. The boss protrudes from the base. The boss is suitable for clamping the sheet metal together with the supporting surface and is suitable for moving toward the main body to make the material of the sheet metal flow, so that the material of the sheet metal flows into the limiting groove. The above-mentioned riveting effect can be achieved without the need for deformation of the rivet parts.

[0029] 10. In the tenth scheme and its preferred embodiment, the boss includes a first step and a second step, the second step protrudes from the base, the first step protrudes from the second step, and the outer side walls of the first step and the second step are inclined surfaces, and both are inclined outward. When riveting, the material is guided to flow to the riveting groove in sections, so that the required riveting force is smaller, the riveting groove is filled more fully with sheet metal, and the riveting effect is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] 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 description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 is a three-dimensional diagram of the riveted component in the first embodiment;

[0032] Figure 2 for Figure 1 Enlarged view of the marked area;

[0033] Figure 3 is a top view of the riveted part in the first embodiment;

[0034] Figure 4 for Figure 3 Sectional view of the BB section;

[0035] Figure 5 for Figure 3 Sectional view of the CC section plane;

[0036] Figure 6 for Figure 3 Sectional view of the DD section plane;

[0037] Figure 7 This is a schematic diagram of the structure of the rivet head before riveting in the third embodiment;

[0038] Figure 8 This is a schematic diagram of the structure of the rivet head after riveting in Example 3;

[0039] Fig. 9 It is a three-dimensional diagram of another embodiment of the rivet head in the third embodiment;

[0040] Fig.10 This is a structural schematic diagram of another embodiment of the rivet head in the third embodiment;

[0041] Description of main reference numerals:

[0042] Body 1; support surface 11; support plane 111; guide slope 112; limit groove 12; first hole 121; first groove 122; limit surface 1221; guide groove 13; umbilicus 2; positioning hole 3; sheet metal 4; through hole 41; base 51; boss 52; first step 521; second step 522; positioning pin 53; height limiting outer ring 54; avoidance groove 55; DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0045] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0046] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0047] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0048] Embodiment 1:

[0049] refer to Figure 1-Figure 6 A riveted part includes a body 1 and a convex navel 2. The riveted part can be a nut or a bolt. In this embodiment, the riveted part is taken as a nut.

[0050] In this embodiment, the body 1 is an octagonal structure with opposite sides of 13mm-16mm. In other embodiments, it can also be a quadrangular structure, a hexagonal structure, a circular structure, etc. The body 1 is provided with a support surface 11, a limiting groove 12 and a material guide groove 13.

[0051] refer to Figure 6 The support surface 11 includes a support plane 111 and a material guiding slope 112. The material guiding slope 112 is located on the inner side of the support plane 111 and extends downward along the direction close to the central axis of the body 1 until it abuts against the outer wall of the umbilicus 2. The material guiding slope 112 is roughly in the shape of an inverted cone.

[0052] The number of the limiting grooves 12 can be multiple. Figure 5 The limiting groove 12 is located on the outside of the umbilicus 2, and is semi-hollow. The limiting groove 12 includes a first hole 121 and a first groove 122 arranged in the vertical direction. One end of the first hole 121 opens to the material guiding slope 112 of the supporting surface 11, and the other end is connected to the first groove 122. The first groove 122 is provided with a limiting surface 1221 away from the supporting surface 11. In this embodiment, the cross-section of the first groove 122 is roughly circular.

[0053] refer to Figure 2 , Figure 4 The guide groove 13 is arranged in one-to-one correspondence with the limiting groove 12. The guide groove 13 is located outside the limiting groove 12, and part of the guide groove 13 is opened on the support plane 111 of the support surface 11, and part of the guide groove 13 is opened on the guide slope 112 of the support surface 11. The guide groove 13 is roughly petal-shaped (small size at both ends and large size in the middle). Of course, in other embodiments, it can also be square, strip, and other shapes.

[0054] The side end of the material guide groove 13 is connected to the first hole 121 and the first groove 122 . The opening size of the material guide groove 13 is larger than the opening size of the first hole 121 , and the side wall of the material guide groove 13 facing the first hole 121 is an inclined section or an arc section.

[0055] refer to Figure 1 The rivet is further provided with a positioning hole 3, which passes through the rivet in the vertical direction. Specifically, the positioning hole 3 passes through the body 1 and the umbilicus 2 in the vertical direction. The positioning hole 3 can be a plain hole or a threaded hole. In this embodiment, the positioning hole 3 is a threaded hole. The umbilicus 2 protrudes from the support surface 11, and the diameter of the umbilicus 2 gradually decreases in the direction close to the support surface 11.

[0056] When riveting with the sheet metal 4 , the material of the sheet metal 4 fills the limiting groove 12 , the material guide groove 13 and the gap between the umbilicus 2 and the supporting surface 11 , thereby having tensile and torsional resistance.

[0057] Compared with the prior art, this embodiment has the following beneficial effects:

[0058] In an exemplary embodiment, a riveted part includes a body 1, and the body 1 is provided with a support surface 11 and a limiting groove 12, and the support surface 11 is used to support the sheet metal 4. The limiting groove 12 includes a first hole 121 and a first groove 122, one end of the first hole 121 is open to the support surface 11, and the other end is connected to the first groove 122, and the material of the sheet metal 4 can flow into the first groove 122 from the first hole 121 and fill the limiting groove 12, which can achieve the anti-rotation effect. The first groove 122 is provided with a limiting surface 1221 away from the support surface 11, so as to achieve the anti-slip effect after riveting with the sheet metal 4. Compared with the anti-rotation teeth protruding from the support surface 11 in the prior art, the deformation required for the sheet metal 4 is smaller, and it is easier to achieve riveting, and compared with the anti-slipping achieved by flip riveting in the prior art, the anti-slipping method can prevent the riveted part from being deformed, ensure the strength of the riveted part, and the connection performance is more reliable.

[0059] In an exemplary embodiment, the material guide groove 13 opens on the supporting surface 11, and the side end of the material guide groove 13 is connected with the first hole 121 and the first groove 122. The opening size of the material guide groove 13 is larger than the opening size of the first hole 121, and can have a larger feeding space. The limiting groove 12 is assisted by the material guide groove 13 to fill the limiting groove 12 more fully, and the anti-slip and anti-twist effects are better. At the same time, the material guide groove 13 can also enhance the anti-twist effect.

[0060] In an exemplary embodiment, the side wall of the material guide groove 13 facing the first hole 121 is an inclined section or an arc section to facilitate the material of the sheet metal 4 to flow into the material guide groove 13 and then flow to the limiting groove 12, so that the limiting groove 12 is filled more fully.

[0061] In an exemplary embodiment, the support surface 11 includes a support plane 111 and a material guide slope 112. The material guide slope 112 is located on the inner side of the support plane 111 and extends downwardly along the direction close to the central axis of the main body 1. One end of the first hole 121 opens to the material guide slope 112, so that the sheet metal 4 material can be guided to the material guide slope 112 first and then enter the limiting groove 12, guiding the material in sections to reduce the required riveting force.

[0062] In an exemplary embodiment, the riveted component is further provided with a positioning hole 3, which passes through the riveted component in the vertical direction to facilitate the positioning of the riveted component when riveting with the sheet metal 4, prevent the riveted component from moving, and facilitate the rivet head to apply pressure to the sheet metal 4.

[0063] In an exemplary embodiment, a convex navel 2 is further included. The convex navel 2 protrudes from the supporting surface 11 to improve the connection strength. The limiting groove 12 is located on the outer side of the convex navel 2.

[0064] In an exemplary embodiment, the diameter of the umbilicus 2 gradually decreases in the direction approaching the support surface 11, so that when the material of the sheet metal 4 is filled between the umbilicus 2 and the support surface 11, a certain anti-slip effect can be achieved.

[0065] Embodiment 2:

[0066] refer to Figure 7 , Figure 8 A riveting assembly includes a sheet metal 4 and the above-mentioned riveting parts. The sheet metal 4 is suitable for being supported by a supporting surface 11 (including a supporting plane 111 and a material guide slope 112), and filling a limiting groove 12, a material guide groove 13 and a gap between the umbilicus 2 and the supporting surface 11, so as to have tensile and torsional resistance.

[0067] Embodiment three:

[0068] refer to Figure 7 , Figure 8 A rivet head is provided, which is suitable for riveting a sheet metal 4 and the above-mentioned riveting piece together. The sheet metal 4 is provided with a through hole 41, and the umbilicus 2 is suitable for extending into the through hole 41.

[0069] The rivet head includes a base 51 , a boss 52 , a positioning pin 53 and a height limiting outer ring 54 .

[0070] The boss 52 protrudes from the base 51, and the boss 52 is annular and is suitable for being enclosed with the base 51 to form an avoidance groove 55 suitable for the umbilicus 2 to extend into. In this embodiment, the boss 52 includes a step, and the outer side wall of the step is an inclined surface and is inclined outwardly to guide the material of the sheet metal 4 to flow toward the supporting surface 11 when piercing the sheet metal 4.

[0071] The positioning pin 53 protrudes from the bottom of the avoidance groove 55, and the positioning pin 53 is suitable for extending into the positioning hole 3 and cooperating with the positioning hole 3, so as to prevent the riveted part from running during riveting.

[0072] The height limiting outer ring 54 is located on the outside of the boss 52 and protrudes from the base 51. The top surface of the height limiting outer ring 54 is higher than the bottom of the avoidance groove 55, so that when limiting, there is still a margin between the riveted part and the bottom of the avoidance groove 55. The top surface of the height limiting outer ring 54 is lower than the top surface of the boss 52 to prevent the boss 52 from affecting the force applied to the sheet metal 4.

[0073] Initially, the support surface 11 supports the sheet metal 4 , and the umbilicus 2 extends into the through hole 41 .

[0074] The boss 52 moves toward the body 1, so that the positioning pin 53 extends into the positioning hole 3, and then continues to move, the boss 52 contacts the sheet metal 4, the boss 52 and the supporting plane 111 of the supporting surface 11 jointly clamp the sheet metal 4, and at this time, further movement causes the boss 52 to cause the material of the sheet metal 4 to flow, and the material of the sheet metal 4 flows toward the material guide slope 112 and approaches the umbilicus 2, and the material of the sheet metal 4 gradually enters the material guide groove 13 and the limiting groove 12. The material of the sheet metal 4 can enter the first groove 122 from the first hole 121, or enter the first hole 121 and the first groove 122 from the side end of the material guide groove 13, so that the limiting groove 12 is filled more fully, until the upper end of the sheet metal 4 is against the height limiting outer ring 54, and the riveting is completed. At this time, the sheet metal 4 is supported by the supporting surface 11 (including the supporting plane 111 and the material guide slope 112), and fills the limiting groove 12, the material guide groove 13 and the gap between the umbilicus 2 and the supporting surface 11. The above riveting effect can be achieved without the need for deformation of the riveted parts.

[0075] In another embodiment, reference Fig. 9 , Fig.10 The boss 52 includes a first step 521 and a second step 522. The second step 522 protrudes from the base 51. The first step 521 protrudes from the second step 522. The outer side walls of the first step 521 and the second step 522 are inclined surfaces and are both inclined outward to guide the material of the sheet metal 4. The outer side wall of the first step 521 is connected to the groove wall of the avoidance groove 55 to form a sharp angle, so that it is easier to penetrate the sheet metal 4. When the boss 52 presses down the sheet metal 4, the first step 521 first penetrates the sheet metal 4, and then the second step 522 penetrates the sheet metal 4. When riveting, the material is guided to flow to the riveting groove in sections, so that the required riveting force is smaller, the riveting groove is filled more fully by the sheet metal 4, and the riveting effect is improved.

[0076] The description of the above specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation on the protection scope of the present invention. Through the enlightenment of the present invention or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent substitutions or other improvements to the embodiments of the present invention or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the present invention.

Claims

1. A riveted part, characterized in that: include A body (1) is provided with a supporting surface (11) and a limiting groove (12), wherein the limiting groove (12) comprises a first hole (121) and a first groove (122), wherein one end of the first hole (121) opens to the supporting surface (11), and the other end is connected to the first groove (122), and the first groove (122) is provided with a limiting surface (1221) which is away from the supporting surface (11).

2. A riveted part according to claim 1, characterized in that: The body (1) further comprises a material guide groove (13), the material guide groove (13) opening on the support surface (11), the side end of the material guide groove (13) communicating with the first hole (121) and the first groove (122), and the opening size of the material guide groove (13) being larger than the opening size of the first hole (121).

3. A riveted part according to claim 2, characterized in that: The side wall of the material guiding groove (13) facing the first hole (121) is an inclined segment or an arc segment.

4. A riveted part according to claim 1, characterized in that: The support surface (11) comprises a support plane (111) and a material guiding inclined surface (112); the material guiding inclined surface (112) is located on the inner side of the support plane (111) and extends downwardly in a direction close to the central axis of the body (1); and the first hole (121) opens on the material guiding inclined surface (112).

5. A riveted part according to claim 1, characterized in that: The riveted component is also provided with a positioning hole (3), and the positioning hole (3) passes through the riveted component in the vertical direction.

6. A riveted part according to any one of claims 1 to 5, characterized in that: It also comprises a convex navel (2), wherein the convex navel (2) protrudes from the supporting surface (11), and the limiting groove (12) is located on the outer side of the convex navel (2).

7. A riveted part according to claim 6, characterized in that: The diameter of the umbilicus (2) gradually decreases in a direction approaching the supporting surface (11).

8. A riveting assembly, characterized in that: It comprises a sheet metal (4) and a riveted part according to any one of claims 1 to 7, wherein the sheet metal (4) is suitable for being supported by the supporting surface (11) and filling the limiting groove (12).

9. A riveting head, characterized in that : Suitable for riveting a sheet metal (4) and a riveted part as claimed in any one of claims 1 to 7 into one body, The riveting head comprises Base (51); A boss (52) protrudes from the base (51), the boss (52) being suitable for clamping the sheet metal (4) together with the support surface (11), and being suitable for moving toward the body (1) to cause the material of the sheet metal (4) to flow, so that the material of the sheet metal (4) flows into the limiting groove (12).

10. A rivet head according to claim 9, characterized in that: The boss (52) comprises a first step (521) and a second step (522), wherein the second step (522) protrudes from the base (51), and the first step (521) protrudes from the second step (522), and the outer side walls of the first step (521) and the second step (522) are inclined surfaces and are both inclined outwards.

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