Insertion piece and setting method thereof

Abstract

An insert has a cylindrical base body comprising a fastening side for fastening the insert to a component opening and a mounting side for mounting an additional component, opposite one another along a central longitudinal axis; on the mounting side, the fastening bolt extends out of the base body, or the fastening opening is provided with a fastening structure extending into the base body; the fastening side comprises a hollow cylindrical shaft which is coaxial with the central longitudinal axis of the base body and has a circumferential shaft wall, the radial inner side of the shaft wall extends in parallel in the axial direction away from the base body, and the fastening side of the hollow cylindrical shaft extends in the axial direction away from the base body. A radially outer side of the shaft wall extends radially inward in an inclined manner with respect to the central longitudinal axis such that the hollow cylindrical shaft tapers; and an annular groove surrounding the hollow cylindrical shaft, the annular groove forming a triangular cross section in an axial cross section parallel to the central longitudinal axis.

Description

Technical Field

[0001] The invention relates to an insert which is arranged in a component opening to establish a connection basis with another component. In addition, the invention relates to a component comprising an insert which is mounted in a component opening, and a method for arranging an insert in a component opening. Background Art

[0002] Known designs of various inserts are used to fasten a nut structure or a bolt structure in a component opening. Based on the fastening structure, such inserts are installed in pre-punched component openings.

[0003] Another design of the fastening structure is to punch out the fastening opening at the same time as the riveting. Such a design requires a punch shaft with suitable structure and stability to punch the component and fasten the rivet element by crimping in a continuous process.

[0004] DE 1400934 discloses an insert having a cylindrical base and a hollow cylindrical shaft for securing the insert. The outer cylindrical peripheries of the base and cylindrical shaft are milled or knurled to form a series of grooves. These grooves are subdivided by intermediate V-shaped projections. When the insert is pressed into a component opening, the grooves and projections engage the component surface. This external structure serves to enhance the locking effect of the insert during use, resisting rotational and torsional stresses. However, this structure is less resistant to pull-out forces and radial loads.

[0005] EP 2 029 903 discloses a component assembly made of a sheet metal part and a rivet nut. The rivet nut also has a cylindrical base and a cylindrical rivet shaft. The rivet shaft is suitable for being riveted to the sheet metal part. Therefore, this prior art is of low relevance, as the rivet element is not fastened in a pre-punched component opening.

[0006] For fastening the rivet element, an annular groove with a U-shaped cross section is provided, which has radial outer walls when viewed in axial section. The volume of the U-shaped annular groove is suitable for accommodating the thickness of the metal sheet in the annular groove after the riveting shaft is bent.

[0007] US2015 / 0322994A1 discloses a nut or insert comprising a base having a threaded through hole, a deformable guide portion having an annular wall surrounding the hole, and an anti-rotation structure disposed around the guide portion. The anti-rotation structure resists rotation of the nut or insert due to applied torque when the nut or insert is installed in a metal plate. The guide portion is deformable to form a lip or flange to clamp a portion of the plate between the base and the lip or flange to prevent it from being pulled out. The anti-rotation structure is each made of radially extending splines that extend from the annular surface of the fastening groove. The splines have a triangular cross-section with their leading edges pointing toward the component surface.

[0008] The anti-rotation structure is further formed by a plurality of keyways extending axially along the insert. Each keyway mates with the plurality of splines to clamp the metal sheet of the component therebetween. Due to the shapes of the splines and keyways, the material clamping of the metal sheet is primarily achieved by the engagement of the spline edges with the circular keyways.

[0009] EP 3309415 A1 discloses an insert having a head with a sheet metal surface in contact. The cylindrical rivet shaft has an anti-rotation feature formed by a notch extending substantially along the entire length of the rivet segment. According to various design alternatives, the notch is combined with a plurality of anti-rotation projections provided on the contact surface of the sheet metal component. These elongated radial projections are aligned with the notch and / or the notch-free gap. The shape and size of the notch do not match those of the adjacent protection projections.

[0010] In view of the prior art, the object of the present invention is to provide an alternative design of an insert which is securely fastened in a component opening and is able to withstand torques applied to the insert. Summary of the Invention

[0011] This problem is solved by an insert according to independent claim 1, a component according to independent claim 8 and an arrangement method according to independent claim 9. Further details and embodiments of the invention are described in the description, the drawings and the dependent claims.

[0012] The present invention provides an insert having a cylindrical base, the base comprising a fastening side and a mounting side opposite to each other along a central longitudinal axis, the fastening side being used to fasten the insert to a component opening, and the mounting side being used to mount an additional component; on the mounting side, a fastening bolt extends from the base, or the fastening opening has a fastening structure extending into the base; the fastening side comprises a hollow cylindrical shaft coaxial with the central longitudinal axis of the base, the hollow cylindrical shaft having a circumferential shaft wall, wherein, in an axial direction away from the base, the radial inner side of the shaft wall extends parallel, and the radial outer side of the shaft wall extends radially inwardly at an angle relative to the central longitudinal axis, so that the hollow cylindrical shaft gradually tapers; and an annular groove surrounding the hollow cylindrical shaft, the groove forming a triangular cross-sectional area in an axial section parallel to the central longitudinal axis.

[0013] The function of the insert provided by the present invention is generally known. Depending on its configuration, the insert is preferably positioned or secured within a pre-punched component opening. After securing the insert, it provides a mounting structure for additional components, etc. Thus, the insert provides the component with optional mounting structures, such as fastening bolts or internal threads.

[0014] In order to provide such a mounting structure for the component, the insert can be reliably fastened in the component opening, preferably in a pre-punched component opening. For this purpose, a hollow cylindrical shaft extends from the fastening side of the base body to be inserted into the pre-punched component opening.

[0015] The hollow cylindrical shaft is defined by a circumferentially extending shaft wall. The shaft wall tapers axially away from the base body. To this end, the radially outer wall of the hollow cylindrical shaft extends radially inwardly with respect to the central longitudinal axis of the hollow cylindrical shaft while extending axially away from the base body.

[0016] Therefore, the shaft preferably has a larger outer diameter close to the base body to support the structural stability of the insert.When axially away from the base body, the outer diameter of the hollow cylindrical shaft preferably decreases continuously by reducing the wall thickness of the shaft wall.

[0017] The hollow cylindrical shaft preferably has a smaller outer diameter at its front end in order to facilitate the introduction of the shaft into the pre-punched component opening.

[0018] It is further preferred that the outer diameter of the shaft increases when axially inserted into the component opening, reducing any gap between the inner edge of the component opening and the outer wall of the shaft, so as to preferably achieve a tight pre-mounting of the insert in the component opening.

[0019] When the insert is secured within the component opening, the edge of the opening is pressed into the annular groove of the base. During the insertion process, the inner groove shape and its retaining walls mate with the axial wall, which is bent toward the base. The edge of the component opening is pressed into the triangular receiving volume of the groove, increasing the retention force of the insert.

[0020] According to a preferred embodiment of the insert of the present invention, the cross-sectional area of ​​the annular groove is formed into a right triangle, and the first side wall and the second side wall of the annular groove extend along the hypotenuse and adjacent sides of the right triangle area.

[0021] For tightening the insert, good results are obtained by using a square groove shape around the shaft.The groove is formed into a preferably square shape or area if seen in an axial section extending along the central longitudinal axis of the insert.

[0022] The square groove shape is preferably formed by two real groove sides and one imaginary side. The imaginary side extends perpendicularly to the longitudinal axis of the insert. Within the groove, one groove side extends parallel to the central longitudinal axis. Thus, this groove side forms an adjacent side of the right triangle area.

[0023] The preferred anti-rotation structure (see below) within this slot shape provides better resistance to rotation of the insert secured within the component opening. It preferably follows the bent structure of the component material within the right-angled triangular slot shape.

[0024] According to another preferred embodiment of the insert of the present invention, a plurality of anti-rotation webs are provided in the annular groove, the webs being evenly distributed in the circumferential direction, extending radially and protruding in the axial direction away from the base body.

[0025] Preferably, the anti-rotation webs are formed in a bead shape, and each of the anti-rotation webs terminates in a radial recess on a radially outer side of the shaft wall.

[0026] Further preferably, a plurality of anti-rotation webs protrude from at least one groove edge so that during placement of the insert, these anti-rotation webs are pressed into the component wall or material to increase the torque resistance of the insert in the component opening.

[0027] According to the shape and size of the anti-rotation web, the anti-rotation effect is preferably enhanced.As a preferred design, the anti-rotation web is formed in a bead shape and extends radially relative to the central longitudinal axis.

[0028] It has been determined that the radially extending anti-rotation beads or webs are more effective if they preferably terminate in a radial depression of the radial outer wall. Thus, the component material is anchored not only in the axially protruding beaded web, but also in the radial depression having a preferably concave shape.

[0029] Furthermore, the radial recess preferably has a greater extension than the anti-rotation web into which it enters, so that the radial recess forms a radial anti-rotation recess. Thus, as a further preferred embodiment of the present invention, the radial recess has a greater extension than the cross-sectional area of ​​the anti-rotation web adjacent to the radial outer wall of the shaft.

[0030] Thus, the radial recess can preferably receive component material which is not only displaced by the anti-rotation structure.

[0031] According to another preferred embodiment of the rivet element, the angle formed by the first and second limiting flat walls of the annular groove ranges from 45° to 65°, preferably from 50° to 60°, and further preferably is 54°.

[0032] In order to limit the size and shape of the material receiving groove volume of the annular groove, the first and second limiting walls are arranged within a certain angular range, and the angular range can preferably vary with the material properties of the component material.

[0033] Most preferably, the angle is 54°. If the component material is more deformable, the angle between the first wall and the second wall can be chosen to be larger.

[0034] According to another preferred embodiment of the insert, the inclined radially outer side of the hollow cylindrical shaft forms an angle of 5° to 10°, preferably 7° to 9°, most preferably 8.5° with the central longitudinal axis of the insert.

[0035] As described above, the hollow cylindrical shaft of the insert tapers away from the base. To this end, the radially outer wall of the shaft is inclined radially inwardly away from the base. Due to this radially inward inclination, the angle of inclination formed between the outer wall of the shaft and the longitudinal axis is in the range of 5° to 10°, preferably 7° to 9°, and more preferably 8.5°.

[0036] The present invention also discloses a component with a component opening, in which an insert with one of the above structures is arranged.

[0037] Furthermore, the present invention provides a method for placing an insert of one of the above-mentioned structures in a pre-punched component opening of a component, comprising the following steps:

[0038] Provide a mounting punch and a mounting die that are coaxially aligned with each other so that the central axial circular protrusion of the mounting punch faces the mounting die (step S1); arrange the component opening of the component to be coaxially aligned with the central axial circular protrusion between the mounting punch and the mounting die (step S2); place an insert of one of the above structures in the component opening so that the hollow cylindrical shaft faces the mounting punch; and cause the mounting die and the mounting punch to move relative to each other according to a set action, thereby fastening the hollow cylindrical shaft in the component opening by crimping. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Hereinafter, the present invention will be described in detail based on the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same elements and / or components. The accompanying drawings show:

[0040] Figure 1 is a perspective view of a first preferred embodiment of an insert of the present invention, which is a nut with a threaded opening.

[0041] Figure 2 is a perspective view of a second preferred embodiment of an insert with bolts on the mounting side.

[0042] Figure 3 is a plan view of a preferred fastening side of an insert, preferably for use with inserts of the present invention having bolts or openings on their mounting side.

[0043] Figure 4 is based on Figure 3 A cross-sectional view of a preferred embodiment having a threaded opening and along Figure 3 AA surface section.

[0044] Figure 5 yes Figure 4 Magnified view of the circular area C.

[0045] Figure 6 It is along Figure 3 Cross-sectional view of line DD.

[0046] Figure 7 It is along Figure 3 Cross-sectional view of line BB.

[0047] Figure 8 yes Figure 7 Magnified view of the annular groove.

[0048] Figure 9 is a cross-sectional view of a preferred component with an insert positioned within the component opening.

[0049] Figure 10 is a schematic diagram of a preferred arrangement for placing an insert in a pre-punched component opening.

[0050] Figure 11 is a flow chart of a preferred embodiment of the setting method. DETAILED DESCRIPTION

[0051] Figure 1 A first preferred embodiment of an insert 10 is shown, which is inserted and fastened in a component opening O. The insert 10 is preferably formed like a nut, having a basic body 30 and a central opening 12, in particular a fastening opening.

[0052] The fastening opening 12 has an inner wall 14 extending circumferentially in the fastening opening 12. The fastening opening 12 is used to provide a fastening structure, such as an internal thread, a snap or latch structure, etc. Such fastening structures are generally known in the art and are widely used.

[0053] The fastening opening 12 is arranged in the center of the base body 30. The central longitudinal axis L preferably passes through the center of the insert 10, 20.

[0054] Furthermore, the base body 30 has a mounting side 32. The mounting side 32 provides structure for mounting another component, an additional component, etc. to the insert 10, 20. In the case of a nut design of the insert 10, the mounting side 32 comprises the central fastening opening 12.

[0055] According to another preferred embodiment of the insert 20, the mounting side 32 includes a fastening bolt 22 for mounting another component, an additional component, etc. on the fastening bolt 22 and thus mounted on the insert 20. The fastening bolt 22 preferably has an external fastening structure 24 to achieve the mounting function of the insert 20. Figure 2 In a preferred embodiment, the fastening structure 24 is formed by an external thread. Further preferably, a latching structure or an alternative system is used for fastening. In addition to this friction-type connection, the fastening bolt 22 preferably forms the basis for a connection achieved by an adhesive.

[0056] The base body 30 comprises a fastening side 34 opposite the mounting side 32. The structure of the fastening side 34 enables a secure fastening of the insert 10, 20 in the component opening O of the component C.

[0057] The fastening side 34 is preferably designed in such a way that a secure connection of the inserts 10 , 20 is ensured in the component opening O. To this end, the fastening side 34 has a hollow cylindrical shaft 40 , which extends coaxially with the central longitudinal axis L. The hollow cylindrical shaft 40 originates from an annular groove 50 of the base body 30 and extends away from the base body 30 .

[0058] Figure 3 A top view of the fastening side 34 is shown, wherein further structural details can be seen from Figure 4 、 Figure 7 、 Figure 5 as well as Figure 6 is obtained from the cross-sectional view.

[0059] Figure 3 The fastening side 34 of the insert 10 is shown, which is formed similar to a nut. Thus, the central fastening opening 12 is surrounded by a hollow cylindrical shaft 40. The hollow cylindrical shaft 40 is surrounded by an annular groove 50, which will be discussed in further detail below.

[0060] If the insert 20 has a centrally arranged fastening bolt 22, the fastening side 34 has the same configuration as used in conjunction with a nut-shaped insert 10. The details of the fastening side 34 described herein therefore apply to both types of inserts 10, 20.

[0061] like Figure 4 and Figure 7 As shown, the hollow cylindrical shaft 40 has a circumferentially extending radial inner wall 42 and a circumferentially extending radial outer wall 44 .

[0062] According to a preferred embodiment of the present invention, the radial inner wall 42 of the shaft 40 extends parallel to the longitudinal axis L.

[0063] According to another preferred embodiment, the radial outer wall 44 has an inclined orientation, so that the wall thickness of the shaft 40 decreases in the axial outward direction, that is, the hollow cylindrical shaft 40 gradually becomes thinner in the axial direction away from the base body 30 .

[0064] Due to the conical configuration of the hollow cylindrical shaft 40 , the inserts 10 , 20 can be easily inserted into the component opening O. Furthermore, by inserting the hollow cylindrical shaft 40 deeper into the component opening O, any gap between the circumferential edge E of the opening O and the adjacent radial outer wall 44 is automatically reduced.

[0065] According to a preferred embodiment of the present invention, the radially outer wall 44 of the hollow cylindrical shaft 40 is subdivided into at least two axial annular segments 46 , 48 .

[0066] The axially inner annular segment 46 preferably extends at least partially within the annular groove 50. The axially inner annular segment 46 is a portion of the radially outer wall 44 that is oriented parallel to the longitudinal axis L.

[0067] Based on the parallel arrangement, the annular groove 50 surrounding the hollow cylindrical shaft 40 preferably has a cross-sectional area formed as a right-angled triangle.

[0068] Preferably, an inclined axially outer annular segment 48 is provided at the axially outermost portion of the hollow cylindrical shaft 40. Relative to the central longitudinal axis L, the annular segment 48 is inclined relative to the central longitudinal axis L as it extends in a direction away from the base body 30. Thus, the hollow cylindrical shaft 40 tapers in the axial direction away from the base body 30.

[0069] Furthermore, the preferably inclined ring segment 48 reduces the outer diameter of the hollow cylindrical shaft 40 , thereby facilitating the introduction of the hollow cylindrical shaft 40 into the component opening O.

[0070] Figure 7 The same configuration as described above is shown in FIG.

[0071] According to a preferred configuration of the outer radial wall 44 of the shaft 40, the inclined axially outer annular segment 48 forms an angle α with the longitudinal axis L or a line parallel thereto, as shown in FIG. Figure 4 、 Figure 5 as well as Figure 7 The angle α is preferably 5°≤α≤10°, preferably 7°≤α≤9°, and further preferably α=8.5°.

[0072] Based on the preferred range and value of the angle α, the insertion, reliability and ease of pre-installation of the inserts 10 , 20 in the component opening O are preferably ensured.

[0073] As mentioned above, the hollow cylindrical shaft 40 is surrounded by an annular groove 50. The annular groove 50 is used to receive the circumferential edge E of the component opening O. After being bent toward the base body 30 by crimping, the circumferential edge E is clamped between the first inner side wall 52 of the annular groove 50 and the radial outer wall 44 of the hollow cylindrical shaft 40 of the insert 10, 20.

[0074] In radially inward direction, the annular groove 50 is preferably delimited by an annularly extending second inner side wall 46. Said second inner side wall 46 extends parallel to the longitudinal axis L.

[0075] The imaginary third wall 56 limits the annular groove 50 in the direction away from the base 30 (see Figure 8 ). The imaginary third wall 56 extends perpendicular to the longitudinal axis L. Therefore, if viewed from an axial section parallel to the central longitudinal axis L, the first side wall 52, the second side wall 54 and the third wall 56 preferably form a cross-sectional area 58 of the annular groove 50, which has a right-angled triangle shape (see Figure 8 In the right triangle cross-sectional area 58, the first limiting wall 52 of the groove is formed as the hypotenuse, and the second limiting wall 54 is formed as the adjacent side, wherein the right angle is enclosed between the imaginary wall 56 and the second limiting wall 54.

[0076] Preferably, the limiting walls 52, 54 are provided as flat walls to support material displacement of the component material within the annular groove 50. These flat walls 52, 54 are preferably interrupted only by an anti-rotation structure, which is explained in detail below.

[0077] According to a preferred embodiment of the invention, the volume of the annular groove 50 is suitable for receiving the material displaced therein by the component C. To this end, the angle β enclosed by adjacent walls 52 , 54 has a value of 45°≤β≤65°.

[0078] According to the material properties of the component material, the value of β is 50°≤β≤60°, preferably β=54°.

[0079] Further preferably, the annular groove 50 is circumferentially limited by a stamped protrusion 60. As shown, the stamped protrusion 60 is annular, preferably a continuous ring. Furthermore, the stamped protrusion 60 protrudes from the hollow cylindrical shaft 40 in a direction away from the base 30. The annular stamped protrusion 60 preferably confines the component material within the annular groove 50, preventing the component material from moving out of the annular groove 50 during the entire installation process of the insert 10, 20.

[0080] Due to its configuration as a nut or bolt, the insert 10, 20 is subject to torque in various frequent applications. Therefore, the resistance of the insert 10, 20 to rotation about its longitudinal axis L is preferably increased by a plurality of anti-rotation webs 70. The anti-rotation webs 70 are preferably evenly arranged within the annular groove 50. These anti-rotation webs 70 preferably have a bead-like configuration extending in the radial direction relative to the longitudinal axis L.

[0081] According to a preferred embodiment of the anti-rotation web 70, it extends from the axially inner annular segment 46 of the radially outer wall 44 of the hollow cylindrical shaft 40. Adjacent to the axially inner annular segment 46, the anti-rotation web 70 has its greatest extension in the axial direction and in the tangential direction relative to the inner annular segment 46.

[0082] Preferably, the axial and tangential extensions of the anti-rotation web 70 decrease in the radial direction. In addition, the axial extension of the anti-rotation web 70 is substantially consistent with the inclination angle β of the first limiting wall 52. Figure 4 and Figure 8 In contrast, the axial extension of the anti-rotation web 70 is not parallel to the first limiting wall 52 .

[0083] Further preferably, the axial extension of the anti-rotation web 70 is not perpendicular to the longitudinal axis L. On the contrary, the axial limit 72 of the anti-rotation web 70 preferably extends at an angle γ<90°; preferably, the angle range is 85°≥γ≥65°; further preferably, the angle range is 85%≥γ≥75°.

[0084] The above structure can also be obtained from Figure 6 It is concluded that Figure 6 Shown Figure 3 A cross-sectional view along line DD shows that the axial limit 72 of the anti-rotation web 70 extends within the extension range of the limiting wall 52 of the annular groove 50 .

[0085] More preferably, Figure 6 The cross-sectional area 74 of the anti-rotation web 70 is depicted, which has a function similar to the quadratic function f(x)=α*x 2 The circular shape has a coefficient α in the range of 0.1≤α≤1, preferably 0.1≤α≥0.9.

[0086] Due to its axial extension, the anti-rotation web 70 forms a recess in the component material and engages therewith, wherein the component material is sandwiched between the shaft wall 44 and the first limiting wall 52, thereby preferably forming a positive fit that increases the rotation resistance of the insert 10, 20.

[0087] According to another preferred embodiment of the present invention, the anti-rotation web 70 extends from the axially inner annular segment 46 within a radial recess 76 and then extends radially outward. If an ellipse is cut along its semi-minor axis, the recess 76 preferably has a semi-elliptical shape.

[0088] Further preferably, twice the semi-minor axis is greater than the tangential extension of the anti-rotation web 70 .

[0089] It is also preferred that the semi-major axis is greater than the axial extension of the anti-rotation web 70 in contact with the axially inner annular segment 46 .

[0090] The present invention further provides a component C having a component opening O, in which inserts 10, 20 are arranged (see Figure 9 ).

[0091] Figure 10 A schematic diagram of a punch P and a die D is shown for positioning an insert 10 within a component opening O. In a first step S1 , the punch P and the die D are coaxially aligned with each other.

[0092] The punch P has a central axial circular protection facing the die D. In a second step S2 , the component opening O is arranged coaxially with the protection of the punch P and the die D being mounted.

[0093] Subsequently, the above-mentioned inserts 10 , 20 are positioned in the opening O (step S3 ).

[0094] It is also preferred that the insert 10 , 20 be pre-positioned within the component opening O before being placed between the punch P and die D.

[0095] Finally, the punch P and die D are moved relative to each other to position the inserts 10, 20. As the punch P moves relative to the die D, the punch's projection deforms the shaft 40 radially outward, causing a portion of the shaft 40 to expand. Consequently, the punch's projection expands the shaft opening and causes a portion of the shaft wall 44 to bend over the circumferential edge E of the opening of the component C. As a result, the circumferential edge E of the component opening O is clamped between the first inner wall 52 and the radially outer wall 44 of the annular groove 50.

[0096] Component number:

[0097] 10. Formed as an insert similar to a nut

[0098] 12. Center fastening opening

[0099] 20. Insert with fastening bolts

[0100] 22. Fasten the bolts

[0101] 30. Matrix

[0102] 32. Installation side

[0103] 34. Fastening side

[0104] 40. Hollow cylindrical shaft

[0105] 42. Radial inner wall

[0106] 44. Radial outer wall

[0107] 46. ​​Axial inner ring segment

[0108] 48. Inclined axial outer ring segment

[0109] 50. Annular groove

[0110] 52. First side wall

[0111] 54. Second side wall

[0112] 56. Imaginary Third Wall

[0113] 58. Triangular cross-sectional area of ​​groove 50

[0114] 60. Annular embossed protrusion

[0115] 70. Anti-rotation web

[0116] 72. Axial limit of anti-rotation web

[0117] 74. Cross-sectional area of ​​the anti-rotation web 70

[0118] 76. Radial Depression

[0119] C. Indented components

[0120] O. Component opening

[0121] E. Circumferential edge of component opening O

[0122] P. Punch

[0123] D. Mould

Claims

1. An insert (10, 20) having a cylindrical base body (30), the base body (30) comprising a fastening side (34) and a mounting side (32) opposite to each other along a central longitudinal axis (L), the fastening side (34) being used to fasten the insert (10, 20) to a component opening, the mounting side (32) being used to mount an additional component, a. On the mounting side (32), the fastening bolt (22) extends from the base (30), or the fastening opening (12) has a fastening structure extending to the base (30); b. The fastening side (34) comprises a hollow cylindrical shaft (40) coaxial with the central longitudinal axis of the base body, the hollow cylindrical shaft (40) having a circumferential shaft wall, wherein: In the axial direction away from the base body, the radial inner side of the shaft wall extends in parallel, and the radial outer side of the shaft wall extends radially inwardly in an inclined manner relative to the central longitudinal axis, so that the hollow cylindrical shaft tapers; as well as c. An annular groove (50) surrounding the hollow cylindrical shaft (40), the annular groove (30) forming a triangular cross-sectional area (58) in an axial section parallel to the central longitudinal axis (L).

2. The insert (10, 20) according to claim 1, characterized in that The cross-sectional area of ​​the annular groove (50) is formed into a right triangle, and the first wall side (52) and the second wall side (54) of the annular groove (50) extend along the hypotenuse and the adjacent side of the right triangle area (58), respectively.

3. Insert (10, 20) according to any one of the preceding claims, characterized in that A plurality of anti-rotation webs (70) are arranged in the annular groove (50), the anti-rotation webs are evenly distributed in the circumferential direction, extend in the radial direction and protrude in the axial direction away from the base body (30).

4. Insert (10, 20) according to claim 3, characterized in that The anti-rotation webs are formed in a bead shape, and each of the anti-rotation webs terminates in a radial recess (76) on the radially outer side (44) of the shaft wall (40).

5. Insert (10, 20) according to claim 4, characterized in that The radial recess (76) has a greater extension than the incoming anti-rotation web (70), so that the radial recess (76) forms a radial anti-rotation recess.

6. Insert (10, 20) according to any one of the preceding claims, characterized in that The first limiting flat wall (52) and the second limiting flat wall (54) of the annular groove (50) form an angle β, and the range of β is 45° to 65°, preferably 50° to 60°, and more preferably 54°.

7. Insert (10, 20) according to any one of the preceding claims, characterized in that The inclined radial outer side (44) of the hollow cylindrical shaft (40) makes an angle of 5° to 10°, preferably 7° to 9°, most preferably 8.5° with the central longitudinal axis (L) of the insert.

8. A component (C) having a component opening (O), in which an insert (10, 20) according to one of the preceding claims is arranged.

9. A method for arranging an insert (10, 20), wherein the insert (10, 20) according to any one of claims 1 to 7 is arranged in a component opening (O) of a component (C), comprising the following steps: a. Providing a mounting punch (P) and a mounting die (D) coaxially aligned with each other so that the central axial circular protrusion of the mounting punch (P) faces the mounting die (D) (step S1); b. Arranging the component opening (O) of the component (C) to be coaxially aligned with the central axial circular protrusion between the mounting punch (P) and the mounting die (D) (step S2); c. placing the insert (10, 20) according to any one of the preceding claims 1 to 7 in the component opening (O) so that the hollow cylindrical shaft (40) faces the mounting punch (P) (step 3); as well as d. The mounting die (D) and the mounting punch (P) are moved relative to each other according to a set action, thereby fastening the hollow cylindrical shaft (40) in the component opening (O) by crimping (step S4).

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