EP2367645A1 - Verfahren und walzbacken zur herstellung einer schraube mit veränderlicher gewindesteigung - Google Patents

Verfahren und walzbacken zur herstellung einer schraube mit veränderlicher gewindesteigung

Info

Publication number
EP2367645A1
EP2367645A1 EP11701451A EP11701451A EP2367645A1 EP 2367645 A1 EP2367645 A1 EP 2367645A1 EP 11701451 A EP11701451 A EP 11701451A EP 11701451 A EP11701451 A EP 11701451A EP 2367645 A1 EP2367645 A1 EP 2367645A1
Authority
EP
European Patent Office
Prior art keywords
thread pitch
implemented
screw
producing
thread
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.)
Granted
Application number
EP11701451A
Other languages
English (en)
French (fr)
Other versions
EP2367645B1 (de
Inventor
Ulrich Hettich
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.)
Ludwig Hettich and Co
Original Assignee
Ludwig Hettich and Co
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 Ludwig Hettich and Co filed Critical Ludwig Hettich and Co
Priority to PL11701451T priority Critical patent/PL2367645T3/pl
Publication of EP2367645A1 publication Critical patent/EP2367645A1/de
Application granted granted Critical
Publication of EP2367645B1 publication Critical patent/EP2367645B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H3/00—Making helical bodies or bodies having parts of helical shape
    • B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
    • B21H3/06—Making by means of profiled members other than rolls, e.g. reciprocating flat dies or jaws, moved longitudinally or curvilinearly with respect to each other

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Transmission Devices (AREA)
  • Metal Rolling (AREA)

Abstract

Gezeigt wird ein Verfahren zum Herstellen einer Schraube (26) mit einem durchgängigen Gewinde (28) veränderlicher Gewindesteigung, bei dem ein Rohling (16) zwischen zwei Walzbacken (24) gewalzt wird, wobei in jedem Walzbacken ein Walzprofil ausgebildet ist, das eine Schar von gekrümmten, nicht parallelen Vertiefungen (34) umfasst. Die Vertiefungen (34) sind so ausgebildet und angeordnet, dass beim Walzen kein oder ein möglichst geringer Volumentransport in Axialrichtung stattfindet, oder ein Volumentransport von einem Bereich des Rohlings, an dem ein Gewindeabschnitt größerer Gewindesteigung auszubilden ist zu einem Bereich, in dem ein Gewindeabschnitt geringerer Gewindesteigung auszubilden ist.
EP11701451A 2010-01-14 2011-01-14 Verfahren und walzbacken zur herstellung einer schraube mit veränderlicher gewindesteigung Active EP2367645B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL11701451T PL2367645T3 (pl) 2010-01-14 2011-01-14 Sposób i szczęka walcownicza do wytwarzania śruby o zmiennym skoku gwintu

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010000084A DE102010000084A1 (de) 2010-01-14 2010-01-14 Verfahren und Mittel zur Herstellung einer Schraube mit veränderlicher Gewindesteigung
PCT/EP2011/000154 WO2011085999A1 (de) 2010-01-14 2011-01-14 Verfahren und walzbacken zur herstellung einer schraube mit veränderlicher gewindesteigung

Publications (2)

Publication Number Publication Date
EP2367645A1 true EP2367645A1 (de) 2011-09-28
EP2367645B1 EP2367645B1 (de) 2012-11-14

Family

ID=43735749

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11701451A Active EP2367645B1 (de) 2010-01-14 2011-01-14 Verfahren und walzbacken zur herstellung einer schraube mit veränderlicher gewindesteigung

Country Status (8)

Country Link
US (1) US9017176B2 (de)
EP (1) EP2367645B1 (de)
CA (1) CA2786923A1 (de)
DE (1) DE102010000084A1 (de)
ES (1) ES2397625T3 (de)
MX (1) MX2012008224A (de)
PL (1) PL2367645T3 (de)
WO (1) WO2011085999A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012009439A1 (en) * 2010-07-14 2012-01-19 Illinois Tool Works Inc. Thread forming die and method
CN104289646B (zh) * 2013-07-17 2015-12-23 卢小璇 防松螺丝的成型模具
JP6472120B2 (ja) * 2014-02-18 2019-02-20 株式会社ＮｅｊｉＬａｗ 両ねじ体転造用ダイス構造、両ねじ体転造方法
US9757792B1 (en) * 2014-04-09 2017-09-12 Mark Doll Method for making a die for roll forming a dual threaded bolt
CN110216425B (zh) * 2019-06-18 2020-08-07 湖南工学院 一种单齿精密加工变槽宽螺纹的加工方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE57269C (de) * THE AMERICAN screw COMPANY in Providence, Rhode Island, V. St. A Arbeitsstück und Walzplatte zur Herstellung von Schrauben
JPS4838066B1 (de) * 1970-04-15 1973-11-15
DE2941507A1 (de) * 1979-10-12 1980-10-23 Jungheinrich Kg Anordnung zur fuehrung eines frei verfahrbaren fahrzeuges entlang einer als fuehrungsdraht ausgefuehrten leitlinie
DE602004004057T2 (de) * 2004-01-26 2007-07-12 Ho, Jen-Tong Schraube mit einer Vielzahl von Schraubwinkeln und Walzbacken zu ihrer Herstellung
DE102007035183B4 (de) 2007-07-27 2010-05-12 Ludwig Hettich & Co. Erzeugung einer planmäßigen Eigenspannungsverteilung in Bauteilen durch Einbringen von Schrauben oder Gewindestangen mit sich in Längsrichtung variabel verändernder Gewindesteigung
WO2012009439A1 (en) * 2010-07-14 2012-01-19 Illinois Tool Works Inc. Thread forming die and method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011085999A1 *

Also Published As

Publication number Publication date
PL2367645T3 (pl) 2013-03-29
MX2012008224A (es) 2012-08-17
ES2397625T3 (es) 2013-03-08
EP2367645B1 (de) 2012-11-14
CA2786923A1 (en) 2011-07-21
US20120309548A1 (en) 2012-12-06
WO2011085999A1 (de) 2011-07-21
DE102010000084A1 (de) 2011-07-21
US9017176B2 (en) 2015-04-28

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