Riveting piece, riveting assembly and pressing rivet head

Abstract

The utility model 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 surface and a limiting groove, and the supporting surface 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 utility model relates to the field of connecting piece, concretely relates to riveting piece, riveting subassembly and pressure riveting head. BACKGROUND

[0002] Fastener is a kind of mechanical parts for fastening connection and is widely used. In various machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, meters and articles, etc., various fasteners can be seen. Riveting nut is a kind of fastener for connecting thin plate or sheet metal. The main riveting structure of the existing riveting nut is protruding tooth and protruding navel, and the protruding navel needs to be deformed by turning (turning to the periphery) when riveting to realize the pull-out performance, but this method has the risk of cracking. The protruding tooth protrudes from the support surface, and the material of the sheet metal flows to the side of the protruding tooth to realize the torsional performance, but since there is a large space between adjacent protruding teeth that needs to be filled, the deformation amount of the sheet metal is large, and riveting is not easy. SUMMARY

[0003] The utility model aims at overcoming the above-mentioned defects or problems in the background art, and provides a riveting piece, a riveting assembly and a pressure riveting head.

[0004] To achieve the above-mentioned purpose, the utility model and its preferred embodiments adopt the following technical solutions, but the embodiments are not limited to the following solutions:

[0005] Scheme one, a riveting piece, comprising

[0006] A body is provided with a support surface and a limiting groove, the limiting groove comprises a first hole and a first groove, one end of the first hole is opened on the support surface, the other end is communicated with the first groove, and the first groove is provided with a limiting surface away from the support surface.

[0007] Scheme two, based on scheme one, the body further comprises a material guiding groove, the material guiding groove is opened on the support surface, the side end of the material guiding groove is communicated with the first hole and the first groove, and the opening size of the material guiding groove is greater than the opening size of the first hole.

[0008] Scheme three, based on scheme two, the side wall of the material guiding groove towards the first hole is a slope or an arc segment.

[0009] Scheme four, based on scheme one, the support surface comprises a support plane and a material guiding slope, the material guiding slope is located on the inside of the support plane and extends downwardly along the direction close to the central axis of the body, and one end of the first hole is opened on the material guiding slope.

[0010] Scheme five, based on scheme one, the riveting piece is further provided with a positioning hole, and the positioning hole penetrates the riveting piece in the vertical direction.

[0011] Option six, based on options one to five, further comprises a convex belly protruding from the support surface, and the limiting groove is located outside the convex belly.

[0012] Option seven, based on option six, the diameter of the convex belly gradually decreases in the direction close to the support surface.

[0013] Option eight, a riveting assembly comprising sheet metal and a riveting piece according to any one of options one to seven, wherein the sheet metal is adapted to be supported by the support surface and fill the limiting groove.

[0014] Option nine, a riveting head adapted to rivet sheet metal and a riveting piece according to any one of options one to seven into one,

[0015] the riveting head comprises

[0016] a base;

[0017] a convex platform protruding from the base, the convex platform being adapted to jointly hold the sheet metal with the support surface and being adapted to move towards the body to cause the material of the sheet metal to flow so that the material of the sheet metal flows into the limiting groove.

[0018] Option ten, based on option nine, the convex platform comprises 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 sidewalls of the first step and the second step are inclined surfaces and both incline outward.

[0019] From the above description of the utility model and its preferred embodiments, compared with the prior art, the technical scheme of the utility model and its preferred embodiments have the following beneficial effects due to the use of the following technical means:

[0020] 1. In option one and its preferred embodiments, a riveting piece comprises a body, the body is provided with a support surface and a limiting groove, the support surface is used to support sheet metal. The limiting groove comprises a first hole and a first groove, one end of the first hole is open to the support surface, the other end is communicated with the first groove, the material of the sheet metal flows into the first groove through the first hole and fills the limiting groove, which can achieve the effect of preventing rotation. The first groove is provided with a limiting surface away from the support surface to achieve the effect of preventing detachment after riveting with the sheet metal. Compared with the anti-rotation tooth protruding from the support surface in the prior art, the deformation amount required by the sheet metal is smaller, and riveting is easier to achieve. Compared with the anti-detachment effect of the existing technology, the anti-detachment method does not deform the riveting piece, ensures the strength of the riveting piece, and the connection performance is more reliable.

[0021] 2. In Scheme 2 and its preferred embodiments, the guide groove opens onto the support surface, and the side end of the guide groove is connected to the first hole and the first groove. The opening size of the guide groove is larger than the opening size of the first hole, which can provide a larger material feeding space. The guide groove assists in filling the limiting groove, making the limiting groove more fully filled, and improving the anti-detachment and anti-torsion effects. At the same time, the guide groove can also improve the anti-torsion effect.

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

[0023] 4. In Scheme 4 and its preferred embodiments, the support surface includes a support plane and a guide slope. The guide slope is located inside the support plane and extends downward along the direction close to the central axis of the body. One end of the first hole opens into the guide slope so that the sheet metal material can be guided to the guide slope first and then enter the limiting groove, guiding the material in segments and reducing the required riveting force.

[0024] 5. In Scheme 5 and its preferred embodiments, the riveting component is further provided with a positioning hole. The positioning hole passes through the riveting component in the vertical direction to facilitate the positioning of the riveting component when riveting with the sheet metal, prevent the riveting component from moving, and facilitate the pressure of the riveting head on the sheet metal.

[0025] 6. In Scheme 6 and its preferred embodiments, a convex navel is also included, which protrudes from the support surface to improve the connection strength, and the limiting groove is located on the outside of the convex navel.

[0026] 7. In Scheme 7 and its preferred embodiments, the diameter of the convex navel gradually decreases along the direction close to the support surface, so that when the sheet metal material is filled between the convex navel and the support surface, a certain anti-detachment effect can also be achieved.

[0027] 8. In Scheme 8 and its preferred embodiments, a riveting assembly includes sheet metal and the aforementioned riveting component. The sheet metal is adapted to be supported by a supporting surface and filled with a limiting groove, thereby possessing tensile and torsional resistance. It also has the beneficial effects brought about by the aforementioned riveting component.

[0028] 9. In Scheme 9 and its preferred embodiments, a press-fit head is suitable for riveting sheet metal and the above-mentioned riveting parts into one piece. The press-fit head includes a base and a boss. The boss protrudes from the base and is suitable for clamping the sheet metal together with the support surface and for moving towards the body so that the material of the sheet metal flows into the limiting groove. The above-mentioned riveting effect can be achieved without deformation of the riveting parts.

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

[0030] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0031] Figure 1 It is a perspective view of the riveting piece in embodiment one.

[0032] Figure 2 It is a perspective view of the riveting piece in embodiment one. Figure 1

[0033] Figure 3 It is a perspective view of the riveting piece in embodiment one.

[0034] Figure 4 It is a perspective view of the riveting piece in embodiment one. Figure 3

[0035] Figure 5 It is a perspective view of the riveting piece in embodiment one. Figure 3

[0036] Figure 6 It is a perspective view of the riveting piece in embodiment one. Figure 3

[0037] Figure 7 It is a structure schematic view of the riveting head before riveting in embodiment three.

[0038] Figure 8 It is a structure schematic view of the riveting head after riveting in embodiment three.

[0039] Figure 9 It is a perspective view of another embodiment of the riveting head in embodiment three.

[0040] Figure 10 It is a structure schematic view of another embodiment of the riveting head in embodiment three.

[0041] MAIN REFERENCE NUMERALS:

[0042] ​​​​Body 1; support surface 11; support plane 111; material guide inclined surface 112; limiting groove 12; first hole 121; first groove 122; limiting surface 1221; material guide groove 13; convex belly 2; positioning hole 3; sheet metal 4; via hole 41; base 51; boss 52; first step 521; second step 522; positioning pin 53; height limiting outer ring 54; avoiding groove 55; DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are preferred embodiments of the present application, and should not be regarded as excluding other embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0044] In the claims, the description and the above drawings of the present application, unless otherwise explicitly limited, the terms such as "first", "second" or "third" are used only to distinguish different objects, and are not used to describe a specific order.

[0045] In the claims, the description and the above drawings of the present application, unless otherwise explicitly limited, for the terms of orientation, such as "center", "transverse", "vertical", "horizontal", "vertical", "top", "bottom", "inner", "outer", "upper", "lower", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation and position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, so it cannot be understood as limiting the specific protection scope of the present application.

[0046] In the claims, the description and the above drawings of the present application, unless otherwise explicitly limited, such as the terms "fixedly connected" or "fixedly connected", should be broadly understood, that is, any connection mode without displacement relationship and relative rotation relationship between the two, that is, it includes non-detachable fixed connection, detachable fixed connection, integration and fixed connection through other devices or elements.

[0047] In the claims, the description and the above drawings of the present application, such as the terms "include", "have" and their variants, are intended to mean "include but not limited to".

[0048] Example one:

[0049] Reference Figures 1-6A riveting piece includes a body 1 and a convex belly 2. The riveting piece can be a nut or a bolt, and the embodiment takes the nut as an example.

[0050] In the embodiment, the body 1 is an octagonal structure, and the opposite side is 13-16 mm. In other embodiments, the structure can be a quadrangular structure, a hexagonal structure, a circular structure, etc. The body 1 is provided with a supporting surface 11, a limiting groove 12, and a material guiding groove 13.

[0051] Referring to Figure 6 , the supporting surface 11 includes a supporting plane 111 and a material guiding inclined surface 112. The material guiding inclined surface 112 is located on the inner side of the supporting plane 111 and extends downward in the direction close to the central axis of the body 1 to abut against the outer wall of the convex belly 2. The material guiding inclined surface 112 is substantially in the shape of an inverted truncated cone.

[0052] The limiting groove 12 can be provided with a plurality of limiting grooves. Referring to Figure 5 , the limiting groove 12 is located on the outer side of the convex belly 2. The limiting groove 12 is in a half-hollowed-out shape. 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 is open to the material guiding inclined surface 112 of the supporting surface 11, and the other end is communicated with the first groove 122. The first groove 122 is provided with a limiting surface 1221 away from the supporting surface 11. In the embodiment, the cross section of the first groove 122 is substantially circular.

[0053] Referring to Figure 2 , Figure 4 , the material guiding groove 13 is provided in one-to-one correspondence with the limiting groove 12. The material guiding groove 13 is located on the outer side of the limiting groove 12. The material guiding groove 13 is partially open to the supporting plane 111 of the supporting surface 11 and partially open to the material guiding inclined surface 112 of the supporting surface 11. The material guiding groove 13 is substantially in the shape of a petal (small in size at both ends and large in size in the middle). Of course, in other embodiments, the material guiding groove 13 can be in various shapes such as a square shape and a strip shape.

[0054] The side end of the material guiding groove 13 is communicated with the first hole 121 and the first groove 122. The opening size of the material guiding groove 13 is larger than that of the first hole 121. The side wall of the material guiding groove 13 facing the first hole 121 is in an inclined segment or an arc segment.

[0055] Referring to Figure 1 , the riveting piece is further provided with a positioning hole 3. The positioning hole 3 penetrates the riveting piece in the vertical direction. Specifically, the positioning hole 3 penetrates the body 1 and the convex belly 2 in the vertical direction. The positioning hole 3 can be a smooth hole or a threaded hole. In the embodiment, the positioning hole 3 is a threaded hole. The convex belly 2 protrudes from the supporting surface 11. The diameter of the convex belly 2 gradually decreases in the direction close to the supporting surface 11.

[0056] When the sheet metal 4 is riveted, the material of the sheet metal 4 fills the limiting groove 12, the material guiding groove 13, and the gap between the convex belly 2 and the supporting surface 11, thereby having the performance of resisting tension and torsion.

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

[0058] In an exemplary embodiment, a riveting piece includes a body 1, the body 1 is provided with a support surface 11 and a limiting groove 12, the support surface 11 is used for supporting 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 opened to the support surface 11, the other end is communicated with the first groove 122, the material of the sheet metal 4 flows into the first groove 122 from the first hole 121, and fills the limiting groove 12, which can achieve the effect of anti-rotation. The first groove 122 is provided with a limiting surface 1221 away from the support surface 11, so as to achieve the effect of anti-falling 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 amount required by the sheet metal 4 is smaller, and the riveting is easier to achieve. Compared with the anti-falling by flaring in the prior art, the riveting piece can not be deformed in this anti-falling way, the strength of the riveting piece is ensured, and the connection performance is more reliable.

[0059] In an exemplary embodiment, the material guide groove 13 is opened to the support surface 11, the side end of the material guide groove 13 is communicated with the first hole 121 and the first groove 122, the opening size of the material guide groove 13 is greater than the opening size of the first hole 121, which can have a larger material inlet space. The limiting groove 12 is assisted to be filled through the material guide groove 13, so that the limiting groove 12 is filled more fully, and the anti-falling and anti-torsion effects are better. At the same time, the material guide groove 13 can also improve the anti-torsion effect.

[0060] In an exemplary embodiment, the side wall of the material guide groove 13 facing the first hole 121 is a slope or an arc segment, so as 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 inclined surface 112, the material guide inclined surface 112 is located on the inner side of the support plane 111 and extends downward in the direction close to the central axis of the body 1, one end of the first hole 121 is opened to the material guide inclined surface 112, so that the material of the sheet metal 4 can be guided to the material guide inclined surface 112 first and then enter the limiting groove 12, the material is guided in sections, and the required riveting force is smaller.

[0062] In an exemplary embodiment, the riveting piece is also provided with a positioning hole 3, the positioning hole 3 penetrates the riveting piece in the vertical direction, so as to facilitate the positioning of the riveting piece when the riveting piece is riveted with the sheet metal 4, prevent the riveting piece from running, and facilitate the pressure of the riveting head on the sheet metal 4.

[0063] In an exemplary embodiment, it also includes a convex belly 2, the convex belly 2 protrudes from the support surface 11 to improve the connection strength, and the limiting groove 12 is located on the outer side of the convex belly 2.

[0064] In an exemplary embodiment, the diameter of the convex belly 2 gradually decreases in the direction close to the support surface 11, so that a certain anti-extraction effect can be achieved when the material of the sheet metal 4 fills the gap between the convex belly 2 and the support surface 11.

[0065] Embodiment II:

[0066] With reference to Figure 7 , Figure 8 A riveting assembly includes the sheet metal 4 and the riveting member, the sheet metal 4 is adapted to be supported by the support surface 11 (including the support plane 111 and the material guiding inclined surface 112), and fills the gap between the limiting groove 12, the material guiding groove 13 and the convex belly 2 and the support surface 11, thereby having the performance of resisting tension and torsion.

[0067] Embodiment III:

[0068] With reference to Figure 7 , Figure 8 A riveting head is adapted to rivet the sheet metal 4 and the riveting member into one body, the sheet metal 4 is provided with the through hole 41, and the convex belly 2 is adapted to extend into the through hole 41.

[0069] The riveting 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, the boss 52 is annular and is adapted to form an avoiding groove 55 with the base 51 for the convex belly 2 to extend into. In this embodiment, the boss 52 includes a step, the outer side wall of the step is an inclined surface and inclines outward, so as to guide the material of the sheet metal 4 to flow to the support surface 11 when piercing into the sheet metal 4.

[0071] The positioning pin 53 protrudes from the groove bottom of the avoiding groove 55, and the positioning pin 53 is adapted to extend into the positioning hole 3 and positionally cooperate with the positioning hole 3, so as to prevent the riveting member from running during riveting.

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

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

[0074] The boss 52 moves to 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, at this time, further moving, the boss 52 causes the material of the sheet metal 4 to flow, the material of the sheet metal 4 flows to the guide slope 112 and approaches the navel 2, the material of the sheet metal 4 gradually enters the 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 guide groove 13, so that the limiting groove 12 is filled more full, until the upper end of the sheet metal 4 abuts against the height-limiting outer ring 54, riveting is completed, at this time, the sheet metal 4 is supported by the supporting surface 11 (including the supporting plane 111 and the guide slope 112), and fills the gap between the limiting groove 12, the guide groove 13 and the navel 2 and the supporting surface 11. Without deformation of the riveting part, the above-mentioned riveting effect can be achieved.

[0075] In another embodiment, with reference to Figure 9 、 Figure 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 wall of the first step 521 and the second step 522 is a slope, and both are inclined outward to guide the material of the sheet metal 4. The outer side wall of the first step 521 is connected with the groove wall of the avoiding groove 55 to form an acute angle, so that it is easier to pierce the sheet metal 4, when the boss 52 presses down the sheet metal 4, the first step 521 pierces the sheet metal 4 first, and then the second step 522 pierces the sheet metal 4. The material is guided to the riveting groove in sections during riveting, so that the required riveting force is smaller, the riveting groove is filled more full by the sheet metal 4, and the effect after riveting is improved.

[0076] The above description and embodiment are used to explain the protection scope of the utility model, but do not constitute the limitation on the protection scope of the utility model. Through the inspiration of the utility model or the above-mentioned embodiment, the modification, equivalent replacement or other improvement of the utility model embodiment or one part of the technical features can be obtained by the ordinary skilled in the art combining with the common knowledge, the ordinary technical knowledge in the art and / or the prior art through logical analysis, reasoning or limited test, and should be included in the protection scope of the utility model.

Claims

1. A rivet member, characterized by: The body (1) is provided with a support surface (11) and a limiting groove (12), the limiting groove (12) comprises a first hole (121) and a first groove (122), one end of the first hole (121) is open to the support surface (11), the other end is communicated with the first groove (122), and the first groove (122) is provided with a limiting surface (1221) away from the support surface (11). The body (1) further comprises a material guiding groove (13), the material guiding groove (13) is open to the support surface (11), and the side end of the material guiding groove (13) is communicated with the first hole (121) and the first groove (122), and the opening size of the material guiding groove (13) is greater than the opening size of the first hole (121).

2. A rivet member as claimed in claim 1, wherein: The side wall of the material guiding groove (13) towards the first hole (121) is a slope or an arc segment.

3. A rivet member as claimed in claim 2, wherein: The support surface (11) comprises 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 downwardly in a direction close to the central axis of the body (1), and the first hole (121) is open to the material guiding slope (112).

4. A rivet member as claimed in claim 1, wherein: The riveting piece is further provided with a positioning hole (3), and the positioning hole (3) penetrates the riveting piece in the vertical direction.

5. A rivet member as claimed in claim 1, wherein: Further comprising a convex navel (2), the convex navel (2) protrudes from the support surface (11), and the limiting groove (12) is located on the outer side of the convex navel (2).

6. A rivet member as claimed in any one of claims 1 to 5 wherein: The diameter of the convex navel (2) gradually decreases in a direction close to the support surface (11).

7. A rivet member as claimed in claim 6, wherein: The riveting piece comprises sheet metal (4) and a riveting piece according to any one of claims 1-7, the sheet metal (4) is adapted to be supported by the support surface (11) and fill the limiting groove (12).

8. A riveted assembly characterized by: The riveting piece is adapted to rivet the sheet metal (4) and the riveting piece according to any one of claims 1-7 into one body, 9. A compression rivet head characterized by The pressure riveting head comprises a base (51); a boss (52) protruding from the base (51), the boss (52) is adapted to jointly hold the sheet metal (4) with the support surface (11) and is adapted to move towards the body (1) to make the material of the sheet metal (4) flow, so that the material of the sheet metal (4) flows into the limiting groove (12). The boss (52) comprises 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 both incline outwardly.

10. A swage head as claimed in claim 9, wherein: ​

Images