EP2923778A3 - Method for the manufacturing holes with a countersink in a plate-like material - Google Patents

Method for the manufacturing holes with a countersink in a plate-like material Download PDF

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Publication number
EP2923778A3
EP2923778A3 EP15160455.0A EP15160455A EP2923778A3 EP 2923778 A3 EP2923778 A3 EP 2923778A3 EP 15160455 A EP15160455 A EP 15160455A EP 2923778 A3 EP2923778 A3 EP 2923778A3
Authority
EP
European Patent Office
Prior art keywords
plate
shaped material
countersink
hole
shaped
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Withdrawn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
EP15160455.0A
Other languages
German (de)
French (fr)
Other versions
EP2923778A2 (en
Inventor
Martin Walz
Thomas Burzig
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.)
Trumpf Werkzeugmaschinen SE and Co KG
Original Assignee
Trumpf Werkzeugmaschinen SE and Co KG
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 Trumpf Werkzeugmaschinen SE and Co KG filed Critical Trumpf Werkzeugmaschinen SE and Co KG
Publication of EP2923778A2 publication Critical patent/EP2923778A2/en
Publication of EP2923778A3 publication Critical patent/EP2923778A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/02—Stamping using rigid devices or tools
    • B21D22/04—Stamping using rigid devices or tools for dimpling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Drilling And Boring (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Herstellung von angesenkten Löchern (12) in einem plattenförmigen Material (14), bei dem in dem plattenförmigen Material (14) in einem Vorstanzschritt mit einem Vorstanzstempel (24) ein Vorloch (16) ausgestanzt wird, welches mehrere über den Umfang verteilt und radial nach außen gerichteten Nasen (18) aufweist, und auf einem gemeinsamen fiktiven Kreisumfang liegen, und bei dem in einem Ansenkschritt in das Vorloch (16) mit einem Ansenkstempel (42) eine Ansenkung (34) eingebracht wird, wodurch die vorgestanzte, sternförmige Schnittkontur (17) zumindest teilweise in eine sich von einer Oberseite (35) des plattenförmigen Materials (14) zur Unterseite (37) des plattenförmigen Materials (14) hin erstreckende, konische Ansenkfläche (32) übergeführt wird.

Figure imgaf001
The invention relates to a method for producing countersunk holes (12) in a plate-shaped material (14), in which a pre-hole (16) is punched out in the plate-shaped material (14) in a pre-punching step with a pre-punch (24) distributed circumferentially and radially outwardly directed lugs (18), and lie on a common notional circumference, and in which in a counterbore in the pre-hole (16) with a serration (42) a countersink (34) is introduced, whereby the prepunched, star-shaped sectional contour (17) at least partially in a from a top (35) of the plate-shaped material (14) to the bottom (37) of the plate-shaped material (14) extending towards conical Ansenkfläche (32) is transferred.
Figure imgaf001
EP15160455.0A 2014-03-24 2015-03-24 Method for the manufacturing holes with a countersink in a plate-like material Withdrawn EP2923778A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102014103975.0A DE102014103975B4 (en) 2014-03-24 2014-03-24 Method, punching tool and leveling tool for the production of countersunk holes in a plate-shaped material

Publications (2)

Publication Number Publication Date
EP2923778A2 EP2923778A2 (en) 2015-09-30
EP2923778A3 true EP2923778A3 (en) 2016-03-16

Family

ID=52780851

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15160455.0A Withdrawn EP2923778A3 (en) 2014-03-24 2015-03-24 Method for the manufacturing holes with a countersink in a plate-like material

Country Status (2)

Country Link
EP (1) EP2923778A3 (en)
DE (1) DE102014103975B4 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118002691B (en) * 2024-04-09 2024-07-23 江苏南方精工股份有限公司 Stamping method and die for bending and stretching products

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879656A1 (en) * 1997-05-20 1998-11-25 FERCO INTERNATIONAL Ferrures et Serrures de Bâtiment, Société Anonyme Device for making, by pressing a frustroconical hole in a metal strip material in particular, a lock casing
AT4432U1 (en) * 1999-04-27 2001-07-25 Hydro Aluminium Komponenten Gm METHOD FOR PRODUCING SUNNEL HOLES AND TOOL FOR EXERCISING THE METHOD
FR2870145A1 (en) * 2004-05-11 2005-11-18 Ferco Int Usine Ferrures Metallic part e.g. locking cross-arm selvedge, has countersunk hole formed by two punching-stamping operations and comprising sectional chamfer communicating with polygonal hole which includes several sides
EP2532452A1 (en) * 2011-06-10 2012-12-12 TRUMPF Werkzeugmaschinen GmbH + Co. KG Method and tool for punching and straightening sheet metal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2308440A1 (en) 1975-04-21 1976-11-19 Ferco Int Usine Ferrures Countersink for sheet metal circular holes - has oversize pilot hole drilled or punched and countersink produced by deforming hole edges
JPS52132490A (en) 1976-04-30 1977-11-07 Yoshitaka Nakanishi Method of sinking counter sink in plate blank
DE3116765C1 (en) * 1981-04-28 1990-10-04 Rohde & Schwarz GmbH & Co KG, 8000 München Tool for making countersunk holes or pass holes in a sheet on a punching machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0879656A1 (en) * 1997-05-20 1998-11-25 FERCO INTERNATIONAL Ferrures et Serrures de Bâtiment, Société Anonyme Device for making, by pressing a frustroconical hole in a metal strip material in particular, a lock casing
AT4432U1 (en) * 1999-04-27 2001-07-25 Hydro Aluminium Komponenten Gm METHOD FOR PRODUCING SUNNEL HOLES AND TOOL FOR EXERCISING THE METHOD
FR2870145A1 (en) * 2004-05-11 2005-11-18 Ferco Int Usine Ferrures Metallic part e.g. locking cross-arm selvedge, has countersunk hole formed by two punching-stamping operations and comprising sectional chamfer communicating with polygonal hole which includes several sides
EP2532452A1 (en) * 2011-06-10 2012-12-12 TRUMPF Werkzeugmaschinen GmbH + Co. KG Method and tool for punching and straightening sheet metal

Also Published As

Publication number Publication date
DE102014103975B4 (en) 2018-12-20
EP2923778A2 (en) 2015-09-30
DE102014103975A1 (en) 2015-09-24

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