EP3615265A1 - Élément de raccordement insérable par pressage et procédé d'ancrage d'éléments de raccordement insérables par pressage dans un matériau plat métallique à déformation permanente ou dans des composants et/ou pièces réalisés à partir de celui-ci - Google Patents

Élément de raccordement insérable par pressage et procédé d'ancrage d'éléments de raccordement insérables par pressage dans un matériau plat métallique à déformation permanente ou dans des composants et/ou pièces réalisés à partir de celui-ci

Info

Publication number
EP3615265A1
EP3615265A1 EP18703979.7A EP18703979A EP3615265A1 EP 3615265 A1 EP3615265 A1 EP 3615265A1 EP 18703979 A EP18703979 A EP 18703979A EP 3615265 A1 EP3615265 A1 EP 3615265A1
Authority
EP
European Patent Office
Prior art keywords
press
diameter
section
knurling
connection element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18703979.7A
Other languages
German (de)
English (en)
Inventor
Heiko Schmidt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP3615265A1 publication Critical patent/EP3615265A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/06—Screw or nut setting or loosening machines
    • B23P19/062—Pierce nut setting machines
    • B23P19/064—Deforming the support material only, e.g. the sheet or plate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/002—Means for preventing rotation of screw-threaded elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B37/00—Nuts or like thread-engaging members
    • F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
    • F16B37/06—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting
    • F16B37/062—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting
    • F16B37/068—Devices for fastening nuts to surfaces, e.g. sheets, plates by means of welding or riveting by means of riveting by deforming the material of the support, e.g. the sheet or plate

Definitions

  • the invention relates to a press-in connection element and a method for anchoring press-in connection elements in a permanently deformable metallic flat material or components or workpieces produced therefrom according to the preamble of patent claims 1 and 12.
  • connection elements which are introduced or anchored in a permanently deformable metallic flat material, in particular a metal sheet or a component or workpiece made therefrom by joining and subsequent pressing, are well known.
  • Such press-in fasteners are often in the form of
  • Press-in nuts with internal thread or Einpressbuchsen formed without internal thread By appropriate choice of the material hardness of the material of the press-in connection element in comparison to the permanently deformable metallic flat material, only the metallic flat material, in particular sheet metal and not the press-in connection element is deformed during the press-fitting process. Press-in fasteners usually have a sleeve-like
  • Basic body with a head portion and a subsequent thereto along a longitudinal axis, reduced in cross-section compared to the head portion
  • the shank portion has a directly to the
  • the lateral surface is designed for rotationally fixed fixing of the press-in connection element in the metal sheet as knurling or other non-circular or polygenic lateral surface.
  • a preferably annular press-in portion is provided, which is a
  • Undercut area come, which adversely affect the subsequent punching process, in particular to a faulty positioning and / or
  • the object is based on a press-in connection element according to the features of
  • the threaded joint section has a first diameter and the press-in section has a second diameter and the second diameter is smaller than the first diameter, wherein the second
  • Diameter approximately corresponds to the initial diameter of the joint section before introducing the knurling into the lateral surface or approximately the first diameter minus the half knurling depth.
  • the diameter of the knurling or joining portion of the shank portion compared to the punched portion of the shank portion of the press-in connection element designed such that neither by the
  • Material displacement in the axial direction arises.
  • the punching process is not adversely affected.
  • the material displacement is generated almost exclusively by the punching tool or a die with annular embossing.
  • the ringing is designed as a so-called RAA knurl with a plurality of grooves running parallel to the longitudinal axis.
  • RAA knurls form in the longitudinal direction of the connecting element and thus in the joining direction of the
  • the knurling formed as RAA-twisting has a pitch and a profile angle and the difference between the first - -
  • first and second diameter is chosen according to the invention as a function of the pitch of the ring, wherein the following relationship exists between the first and second diameter d 1, d 2 and the pitch t:
  • the RAA knurling is standardized in DIN82 and may, for example, have standardized pitches of 0.5 mm, 0.6 mm, 0.8 mm, 1.0 mm, 1.2 mm or 1.6 mm.
  • a pitch t of 0.8 mm and a profile angle of 90 ° are particularly preferred.
  • the first diameter is particularly advantageously chosen such that it corresponds to the diameter of a virtual circular line about the longitudinal axis on which the outer points of the knurling come to lie.
  • the knurling depth corresponds to the difference between the radius of the virtual circular line about the longitudinal axis on which the outer tips of the
  • Knurling or the teeth of the serrated profile come to rest, and the radius of the other virtual circle around the longitudinal axis, come to rest on the inner peaks of the knurling or the teeth of the serrated profile.
  • Einpressabrough formed an annular undercut portion having a preferably concentric with the longitudinal axis extending
  • groove and / or annular recess forms, in which during pressing of the press-in connection element with the metal sheet surrounding the press-in connection element material of the metal sheet is plastically deformed.
  • the annular undercut portion has a third diameter which is smaller than the second diameter, and that is the difference between the second and third diameter
  • the press-fit is by a
  • the invention also relates to a prefabricated assembly comprising an injection-molded connection element according to the invention and a permanently deformable metallic flat material or a component or workpiece made therefrom, in which the press-in connection element is formed by joining and compression in the permanently deformable metallic flat material or a component made therefrom or Workpiece is introduced or anchored therein.
  • the invention further relates to a method for anchoring a press-in connection element in a permanently deformable metallic flat material, in particular a metal sheet or a component or workpiece made thereof by joining and pressing, wherein the press-in connection element has a head portion and a along one
  • Pressing section has. Particularly advantageous is the joining of the press-in connection element in the permanently deformable metallic
  • Sheet material or metal sheet is plastically deformed and displaced into a provided between the threaded joint portion and the press-fitting section annular undercut section. Due to the dimensioning according to the invention of the joining and press-fitting sections of the press-in connection element, uniform plastic deformation of the material of the flat material or metal sheet surrounding the press-fit connection element into the annular undercut section is possible.
  • a matrix cooperating with a support is used with an embossing collar which receives the press-in section in such a way that the material of the flat material or metal sheet does not flow for the anchoring or pressing of the press-in connection element in the flat material or metal sheet Deformation of the press-in connection element is effected.
  • FIG. 1 shows a perspective view of a press-fit connecting element according to the invention, an end view of the shank section of FIG. 1
  • FIG. 1 is an example of a perspective view of a press-in connection element
  • connection element 1 shown which in the illustrated embodiment as a press-nut element with
  • press-in connection element 1 can also be used as a press-in socket element
  • the press-fit connection element 1 is formed in one piece or in one piece and made of a material or material mixture.
  • the press-fit connection element 1 is designed for insertion and anchoring in a permanently deformable metallic flat material, in particular a metal sheet 10 or a component or workpiece made thereof by joining and pressing and for this purpose has a sleeve-shaped base body extending along a longitudinal axis LA, at least one
  • Head section 2 and a along the longitudinal axis LA immediately adjoining shank portion 3 includes.
  • the shaft portion 3 is formed by a substantially circular cylindrical collar, which compared to - -
  • Head section 2 is reduced cross-section, so that in the inserted state of the head portion 2 comes to rest against the top of the metal sheet. Also, the head portion 2 is preferably realized in the form of a circular cylindrical body portion.
  • the sleeve-shaped base body has a preferably
  • the inner wall is provided for example with an internal thread.
  • the circular cylindrical cavity 4 extends over the entire length of the press-in connection element 1 and thus forms a through hole for receiving and / or performing a rod-shaped element,
  • the shaft of a screw or bolt for example, the shaft of a screw or bolt.
  • the press-fit connection element 1 is designed for press-fitting into a metal sheet 10 or into a component or workpiece produced from a metal sheet 10, and this is to be formed therein by joining and pressing
  • FIG. 5 shows, for example, a schematic longitudinal section through a press-in connection element 1 introduced into a metal sheet 10 and a longitudinal section through the corresponding tools 12, 13.
  • the press-in connection element 1 is preferably inserted into a pre-perforation 11 in the metal sheet 10 with the corresponding tools 12 , 13 pressed in and anchored in it.
  • the component or workpiece may be, for example, a component or workpiece made of sheet steel by punching and bending.
  • the material hardness of the press-fit connection element 1 is preferably greater than the material hardness of the metal sheet 10.
  • the shank portion 3 has, for example, one directly to the
  • the longitudinal axis LA is adaptable. Further, the shaft portion 3 at its free, the head portion 2 opposite end of a press-in 3.2, which is preferably formed by a concentric about the longitudinal axis LA rotating, annular press-fit collar. In the absence of pre-perforation 11 in the metal sheet 10, the press-in 3.2 also an annular
  • the joining section 3.1 has a lateral surface with a knurling RA, in particular a knurling RA with a plurality of grooves running parallel to the longitudinal axis LA, which is referred to as RAA knurling.
  • a serrated profile running around the longitudinal axis LA is produced on the lateral surface of the joining section 3.1, wherein in each case a groove is trapped between two consecutive serrations.
  • the knurling RA has a knurling depth T.
  • the knurling RA shown or indicated in FIGS. 1 to 5 is designed, for example, as RAA knurling with a pitch t of 0.8 mm and a profile angle of 90 °. It goes without saying that RAA knurls with different pitches t standardized according to DIN 82, for example 0.5 mm, 0.6 mm, 1.0 mm, 1.2 mm or 1.6 mm, can also be used. Also alternative profile angles are possible.
  • Diameter d l here denotes the diameter of a virtual circle around the longitudinal axis LA, on which the outer tips of the knurling RA or
  • the first diameter d l denotes the outer diameter of the threaded
  • the knurling depth T corresponds to the difference between the radius of the virtual circle around the longitudinal axis LA, on which the outer points of the knurling RA or the serrations of the serrated profile come to lie, and the radius of the other - -
  • the knurling RA is preferably produced in this context by turning. Alternatively, the knurling RA can be made by cold working.
  • the threaded joint section 3.1 has the first diameter d1 and the press-in section 3.2 has a second diameter d2, wherein the second diameter d2 is smaller than the first diameter d1.
  • the second diameter d2 is approximately equal to
  • Knurling depth T in particular in a knurling RA produced by cold forming.
  • the second diameter d2 is thus halfway through
  • the first diameter d 1 of the threaded joint section 3.1 is thus 0.4 mm larger than the second diameter d 2, i. the difference of the first and second diameters d 1, d 2 is selected as a function of the pitch t of the knurling RA. This is particularly true for RAA knurling produced by turning.
  • the difference of the first and second diameters dl, d2 is selected depending on the pitch t of the knurl RA or the knurling depth T. This applies in particular to a RAA knurl produced by turning or cold forming. - -
  • the head portion 2 is also formed in a preferred embodiment by a circular cylindrical portion having a head diameter dk and a head width bk each with respect to the longitudinal axis LA. Furthermore, the preferably circular cylindrical cavity 4 has a
  • Inner diameter di on which is selected depending on the application, in particular depending on the amount of internal thread to be provided.
  • annular undercut section 3.3 is arranged, which has a concentric with the longitudinal axis LA extending, nut and / or annular
  • Undercut section 3.3 may have different cross-sectional shapes, for example, form a cross-sectionally triangular or trapezoidal undercut.
  • the annular undercut section 3.3 is thus reduced in cross-section compared to the joining section 3.1 and the press-in section 3.2 and thus jumps back radially in the direction of the longitudinal axis LA.
  • the press-in connection element 1 is additionally anchored in addition to the knurling RA of the joint section 3.1 in the metal sheet 10 and in particular secured against rotation.
  • the threaded joint section 3.1 is formed by a to the head portion 2 along the longitudinal axis LA immediately subsequent threaded, circular cylindrical portion having a first width bl based on the extension along the longitudinal axis LA.
  • the second threaded joint section 3.1 is formed by a to the head portion 2 along the longitudinal axis LA immediately subsequent threaded, circular cylindrical portion having a first width bl based on the extension along the longitudinal axis LA.
  • Diameter d2 is relative to that outer peripheral surface or peripheral edge of the press-in section 3.2, which has the greatest radial distance from the longitudinal axis LA.
  • This press-in section 3.2 is formed, for example, by an annular press-fit collar whose largest outer diameter forms the second diameter d2.
  • Einpressabiteses 3.2 of the shaft portion 3 a flat annular surface, which is concentric to the longitudinal axis LA.
  • the annular undercut section 3.3 has a third diameter d3, preferably in the region of the peripheral surface with the smallest radial distance to the longitudinal axis LA.
  • the third diameter d3 of the annular undercut section 3.3 is smaller than the first and second diameters d l, d2.
  • the difference between the second and third diameters d2, d3 is preferably selected in the range between 0.25 times and the simple of the pitch t of the knurling RA of the knurled joining section 3.1 designed as RAA knurling.
  • the annular undercut section 3.3 is formed by a circular cylindrical section which concentrically revolves around the longitudinal axis LA and has a third section
  • Width b3 formed, the cross-section widening via a respective obliquely to the longitudinal axis LA extending transition section in the joint section 3.1 and the press-in section 3.2 passes.
  • the annular undercut section 3.3 has an arc-shaped cross-sectional profile, so that the third width b3 is substantially reduced to a vertex line with the smallest radial distance to the longitudinal axis LA.
  • the annular undercut section 3.3 may have a triangular cross-sectional profile, wherein this annular undercut section 3.3 opens in a gap-like manner to the outside or the receiving space formed thereby tapers in the direction of the longitudinal axis LA.
  • Figure 5 shows an example in a schematic side view of the
  • the diameter of the pre-perforation 11 is preferably slightly smaller than or equal to the second - -
  • a corresponding buzzing be punched out of the metal sheet, which allows subsequent joining of the joint section 3.1 in the tool.
  • the press-in connection element 1 is deformed by deforming the material of the metal sheet 10 around the pre-punched joint opening or pre-punch 11, in such a way that the material radially into the parallel to the longitudinal axis LA running grooves of the knurling RA flows, but an axial displacement of the material in the joining direction, ie along the longitudinal axis LA is avoided.
  • the head section 2 with its underside facing the joining section 3.1 bears against the top side 10a of the metal sheet, the remaining shaft section 3 preferably being completely accommodated in the pre-perforation 11 and, for example, flush or approximately flush with the underside 10b of the metal sheet 10.
  • the shaft portion 3 with its free end, with the
  • Press-in 3.2 project beyond the bottom 10 b of the metal sheet 10.
  • the support 12 is formed for example by a ram or plunger.
  • the press-in connection element 1 in the joining opening or pre-perforation 11 is with the die 13, which during pressing with her
  • Stamping collar 14 encloses the press-in section 3.2 or press-fit collar or completely absorbs almost exclusively force on the material of the
  • Metal sheet 10 exercised, in such a way that for anchoring or
  • FIG. 5 shows a prefabricated assembly comprising an insert-in connection element 1 according to the invention and a metal sheet 10, wherein the press-in connection element 1 is introduced by joining and pressing into the metal sheet 10 indicated by way of example. It is understood that the indicated metal sheet 10 may also be part of a component or workpiece produced therefrom, without thereby departing from the inventive idea.
  • Undercut section 3.3 in its entire course, especially in the area of the transitions to the joint section 3.1 and / or press-in 3.2 with a high pressure or clamping force against the edge of the metal sheet 10 surrounding the joining opening or pre-punch 11.

Abstract

L'invention concerne un élément de raccordement insérable par pressage (1) conçu pour être inséré dans un matériau plat métallique à déformation permanente (10) ou dans un composant ou une pièce formé à partir de ce matériau, par assemblage et pressage, comprenant une section tête (2) et une section corps (3) s'étendant dans le prolongement de celle-ci, le long d'un axe longitudinal (LA), en retrait par rapport à la section tête (2), ladite section corps (3) comportant au moins une section de liaison (3.1) directement adjacente (2) à la section tête (3), qui présente une surface externe dotée d'un moletage (RA) et une section d'insertion par pressage (3.2) qui lui est adjacente le long de l'axe longitudinal (LA). De manière particulièrement avantageuse, la section de liaison moletée (3.1) présente un premier diamètre (d1) et la section d'insertion par pressage (3.2) un deuxième diamètre (d2), le deuxième diamètre (d2) étant inférieur au premier diamètre (d1), le deuxième diamètre (d2) correspondant approximativement au diamètre initial (D) de la section de liaison (3.1) avant la formation du moletage (RA) dans la surface externe ou approximativement au premier diamètre (d1) moins la moitié de la profondeur de moletage (T).
EP18703979.7A 2017-04-24 2018-02-07 Élément de raccordement insérable par pressage et procédé d'ancrage d'éléments de raccordement insérables par pressage dans un matériau plat métallique à déformation permanente ou dans des composants et/ou pièces réalisés à partir de celui-ci Withdrawn EP3615265A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017108639.0A DE102017108639A1 (de) 2017-04-24 2017-04-24 Einpress-Verbindungselement und Verfahren zum Verankern von Einpress-Verbindungselementen in ein bleibend verformbares metallisches Flachmaterial oder daraus hergestellte Bauteile bzw. Werkstücke
PCT/EP2018/052991 WO2018197066A1 (fr) 2017-04-24 2018-02-07 Élément de raccordement insérable par pressage et procédé d'ancrage d'éléments de raccordement insérables par pressage dans un matériau plat métallique à déformation permanente ou dans des composants et/ou pièces réalisés à partir de celui-ci

Publications (1)

Publication Number Publication Date
EP3615265A1 true EP3615265A1 (fr) 2020-03-04

Family

ID=61188805

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18703979.7A Withdrawn EP3615265A1 (fr) 2017-04-24 2018-02-07 Élément de raccordement insérable par pressage et procédé d'ancrage d'éléments de raccordement insérables par pressage dans un matériau plat métallique à déformation permanente ou dans des composants et/ou pièces réalisés à partir de celui-ci

Country Status (5)

Country Link
US (1) US20200108475A1 (fr)
EP (1) EP3615265A1 (fr)
CA (1) CA3059642A1 (fr)
DE (1) DE102017108639A1 (fr)
WO (1) WO2018197066A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7118537B2 (ja) * 2018-07-27 2022-08-16 株式会社青山製作所 ナット及びナットの固定構造
US20230287925A1 (en) * 2022-03-10 2023-09-14 Ewing-Foley, Inc. Clinching sleeve fastener

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3000420A (en) * 1958-03-14 1961-09-19 Spokes Albert Nut with recesses to receive metal of the workpiece
US3461936A (en) * 1967-10-19 1969-08-19 Robert D Weber Self-retained tension nut
FR2515283A3 (fr) * 1981-10-27 1983-04-29 Simaf Ecrou cylindrique a sertir en aveugle
DE102009012243B4 (de) * 2009-03-07 2021-05-12 Nedschroef Plettenberg Gmbh Stanzmutter, Stanzmutter-Vorrichtung und Stanzmutter-Blechverbindung

Also Published As

Publication number Publication date
DE102017108639A1 (de) 2018-10-25
WO2018197066A1 (fr) 2018-11-01
CA3059642A1 (fr) 2018-11-01
US20200108475A1 (en) 2020-04-09

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