EP2953745B1 - Procédé de poinçonnage d'un trou aveugle dans un objet métallique - Google Patents

Procédé de poinçonnage d'un trou aveugle dans un objet métallique Download PDF

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Publication number
EP2953745B1
EP2953745B1 EP14707090.8A EP14707090A EP2953745B1 EP 2953745 B1 EP2953745 B1 EP 2953745B1 EP 14707090 A EP14707090 A EP 14707090A EP 2953745 B1 EP2953745 B1 EP 2953745B1
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EP
European Patent Office
Prior art keywords
receptacle
workpiece
blind hole
displaced
punching
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.)
Active
Application number
EP14707090.8A
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German (de)
English (en)
Other versions
EP2953745A1 (fr
Inventor
Tobias Geisler
Wolfgang Rixen
Gerrit Pies
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.)
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Individual
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Publication of EP2953745A1 publication Critical patent/EP2953745A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06—Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K23/00—Making other articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/002—Hybrid process, e.g. forging following casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/64—Making machine elements nuts

Definitions

  • the invention relates to a method, alternative to drilling, for creating a blind hole in a metallic workpiece having at least one curved surface, machining starting approximately from the horizontal contact rod and approximately transversely thereto in the direction of the material of the workpiece.
  • the invention is therefore based on the object of developing a method which the metallic bodies can be provided with blind holes with high precision and also at a significantly increased speed.
  • the essence of the invention is to put the corresponding material points in the metallic body into an adiabatic state in order to avoid plastic deformations in the area of impact. This does not require a drill that wears out quickly. Furthermore, there are no chips that could lead to process disruptions.
  • a further development of the invention provides that the diameter of the receptacle is smaller than the diameter of the punch.
  • the depth and width of the blind hole to be set precisely, since the smaller diameter of the receptacle means that the material can be driven out in the correct ratio so that there is still enough material left over to form the bottom of the blind hole.
  • the protrusion of the punch with respect to the receptacle enables a ring area that cannot be displaced too quickly, so that this ring area ensures that a bottom area remains during the punching or lifting process.
  • the receptacle for the displaced material is arranged above the workpiece.
  • the impact speed ⁇ 10 m / s preferably 6 m / s to 8 m / s, is sufficient to generate the adiabatic state.
  • the impact speed of 7 m / s is particularly advantageous.
  • the cross section of the metallic workpiece is triangular or semicircular, has at least one rounded corner, and the blind hole, starting from the highest point of the rounding, runs transversely to the line connecting the two other corners.
  • a further development of the invention provides that the workpiece is fed as a long material with the desired cross-section to the processing station for creating the blind hole and is then cut to size adiabatically or previously separated adiabatically to the final size and fed to the processing station.
  • this slot nut also has a through hole using the method for producing through holes of through holes according to the simultaneously filed and pending Patent application " Method for producing a through hole in a metallic body ", filed on February 5, 2013 , is provided.
  • the Figure 1 shows the starting position for an adiabatic displacement of a blind hole 10.
  • the workpiece 12 which in this case is of course a sliding block 12, is held in a holder 14 in such a way that the rounding of the semicircular cross-section in this case points downwards.
  • the workpiece 12 to be machined is held on its upper side by a receptacle 16 which has a punch 18 in an aligned recess or a cavity for the material to be displaced.
  • the sliding block 12 or the unmachined section is therefore held from below and from above.
  • the material of the workpiece is displaced with the aid of a punch 18 in the axial direction of the receptacle 16, the material hit by the punch 18 transitioning into an adiabatic state and being partially displaced into the cavity 16 provided for this purpose.
  • the recording 16 is according to Fig. 4 Shifted to the right until the sheared pin reaches the through hole Du and can fall down through it.
  • the diameter d in the receptacle 16 is smaller than the diameter D of the punch 18.
  • a small ring is formed in the region of the sliding block 12, which is more or less held back by the smaller diameter d of the opening of the receptacle 16. The receptacle 16 therefore holds an annular part of the later bottom of the blind hole 10 of the slot nut 12.
  • the cross-section of the metallic workpiece 12 is triangular, with at least one rounded corner is present, which can be used as an entry for the punch or punch 18 to produce the blind hole 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Forging (AREA)

Claims (8)

  1. Procédé de production d'un trou borgne (10) dans une pièce métallique (12) présentant au moins une surface incurvée, dans lequel, en partant approximativement de la tangente à la courbure s'étendant horizontalement et approximativement transversalement à celle-ci, une partie de matière est déplacée dans la direction de la matière de la pièce (12) au moyen d'un mouvement de levage, comprenant les étapes consistant à :
    a) doter la pièce (12) d'un logement (16) à matrice pour la matière à refouler (12) ;
    b) déplacer la matière de la pièce (12) au moyen d'un poinçon (18) dans la direction axiale du logement (16), dans lequel la matière frappée par le poinçon (18) est d'abord cisaillée dans un état adiabatique et s'écoule partiellement dans le logement (16) ; et
    c) éliminer la matière (12) qui dépasse du logement (16).
  2. Procédé selon la revendication 1, caractérisé en ce que le diamètre (d) du logement (16) est inférieur au diamètre (D) du poinçon (18).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le logement (16) pour la matière déplacée est disposé au-dessus de la pièce (12).
  4. Procédé selon l'une quelconque des revendications précédentes 1 à 3, caractérisé en ce que l'état adiabatique est atteint à une vitesse d'impact de 6 m/s à 8 m/s.
  5. Procédé selon la revendication 4, caractérisé en ce que la vitesse d'impact est de 7 m/s.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que la section transversale de la pièce métallique (12) est triangulaire ou semi-circulaire, présente au moins un coin arrondi et le trou borgne (10), partant du point le plus élevé de l'arrondi, s'étend transversalement à la ligne reliant les deux coins restants.
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la pièce (12) est amenée sous forme de matière longue avec la section transversale souhaitée au poste d'usinage pour produire le trou borgne (10) et est ensuite coupée adiabatiquement à la taille finale ou est déjà séparée adiabatiquement au préalable avec la taille finale et amenée au poste d'usinage.
  8. Utilisation du procédé selon l'une quelconque des revendications précédentes 1 à 7 pour la production de coulisseaux (12).
EP14707090.8A 2013-02-05 2014-01-25 Procédé de poinçonnage d'un trou aveugle dans un objet métallique Active EP2953745B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013001918.4A DE102013001918B4 (de) 2013-02-05 2013-02-05 Verfahren zur Herstellung eines Sacklochs in einem metallischen Körper sowie Verwendung eines derartigen Verfahrens
PCT/EP2014/000196 WO2014121899A1 (fr) 2013-02-05 2014-01-25 Procédé de production d'un trou borgne dans un corps métallique

Publications (2)

Publication Number Publication Date
EP2953745A1 EP2953745A1 (fr) 2015-12-16
EP2953745B1 true EP2953745B1 (fr) 2020-12-23

Family

ID=50189652

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14707090.8A Active EP2953745B1 (fr) 2013-02-05 2014-01-25 Procédé de poinçonnage d'un trou aveugle dans un objet métallique

Country Status (5)

Country Link
US (1) US10105750B2 (fr)
EP (1) EP2953745B1 (fr)
CN (1) CN105050750A (fr)
DE (1) DE102013001918B4 (fr)
WO (1) WO2014121899A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013001919B4 (de) 2013-02-05 2022-10-13 Wolfgang Rixen Verfahren zur Erzeugung eines Durchgangslochs in einem metalischen Körper und Verwendung eines solchen Verfahrens
DE102017214210A1 (de) * 2017-08-15 2019-02-21 Wolfgang Rixen Verfahren zur Herstellung eines Sacklochs
JP6955123B1 (ja) * 2020-11-02 2021-10-27 株式会社Ｔ・Ｐ・Ｓ・クリエーションズ 面実装ナットの製造方法、面実装ナットの製造装置、有底筒状体の製造方法、および面実装ナット

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3645521A (en) * 1970-09-02 1972-02-29 Chemotronics International Inc Apparatus for treating articles of manufacture to eliminate superfluous projections
JPH06275365A (ja) 1993-03-18 1994-09-30 Nippondenso Co Ltd 金属チップの製造方法，製造装置，金属チップ及びスパークプラグ
DE19753069C2 (de) * 1997-11-29 2001-09-27 E & W Gloerfeld Gmbh Nutenstein
JP2002043474A (ja) * 2000-07-21 2002-02-08 Nakamura Seisakusho Kk 電子部品用パッケージの形成方法
US6571596B1 (en) * 2000-11-29 2003-06-03 Lennart J. Lindell Automatic two-station adiabatic blank cut-off and part forming system
DE10317185A1 (de) 2003-04-15 2004-11-11 Edscha Ag Herstellung von Profilteilen
DE102007036708A1 (de) 2007-08-03 2008-04-30 Daimler Ag Verfahren und Vorrichtung zur Herstellung von Verzahnungen
DE102010007955B4 (de) 2010-02-12 2014-08-21 Johnson Controls Gmbh Verfahren zur Herstellung eines Bauteils sowie Vorrichtung
DE102013001919B4 (de) 2013-02-05 2022-10-13 Wolfgang Rixen Verfahren zur Erzeugung eines Durchgangslochs in einem metalischen Körper und Verwendung eines solchen Verfahrens

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
WO2014121899A1 (fr) 2014-08-14
DE102013001918A1 (de) 2014-08-07
EP2953745A1 (fr) 2015-12-16
DE102013001918B4 (de) 2019-12-19
US10105750B2 (en) 2018-10-23
CN105050750A (zh) 2015-11-11
US20150367403A1 (en) 2015-12-24

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