EP1127632A3 - A process of straightening fragile pieces - Google Patents

A process of straightening fragile pieces Download PDF

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Publication number
EP1127632A3
EP1127632A3 EP00203669A EP00203669A EP1127632A3 EP 1127632 A3 EP1127632 A3 EP 1127632A3 EP 00203669 A EP00203669 A EP 00203669A EP 00203669 A EP00203669 A EP 00203669A EP 1127632 A3 EP1127632 A3 EP 1127632A3
Authority
EP
European Patent Office
Prior art keywords
straightening
error
component
oriented
components
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
EP00203669A
Other languages
German (de)
French (fr)
Other versions
EP1127632B1 (en
EP1127632A2 (en
Inventor
Luigi Galdabini
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.)
Cesare Galdabini SpA
Original Assignee
Cesare Galdabini SpA
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 Cesare Galdabini SpA filed Critical Cesare Galdabini SpA
Publication of EP1127632A2 publication Critical patent/EP1127632A2/en
Publication of EP1127632A3 publication Critical patent/EP1127632A3/en
Application granted granted Critical
Publication of EP1127632B1 publication Critical patent/EP1127632B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
    • B21D3/10—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts between rams and anvils or abutments

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Forging (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

A process for straightening fragile pieces (11), which includes a phase for calculating the maximum eccentricity error ( E ) of the piece (11) to be straightened, and a multiple number of phases for reducing the error in at least three directions, where the maximum eccentricity error ( E ) previously calculated is split up into at least three component vectors ( R 1, R 2, R 3), where the component ( R 1) is oriented in the direction of the maximum error ( E ), while the components ( R 2) and ( R 3) are oriented with respect to the component ( R 1) by an angle of ± α°, and where the straightening phases are performed in the direction of the components ( R 1, R 2, R 3), with an intensity of blows proportional to the component modules ( R 1, R 2, R 3), by appropriately rotating the piece to be straightened (11) by ± α° with respect to the direction of the maximum error ( E ), so that the same is oriented, from time to time, in the direction of the components ( R 1, R 2, R 3).
EP00203669A 2000-02-22 2000-10-20 A process of straightening fragile pieces Expired - Lifetime EP1127632B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ITMI20000319 2000-02-22
IT2000MI000319A IT1316652B1 (en) 2000-02-22 2000-02-22 STRAIGHTENING PROCEDURE FOR FRAGILE PIECES
ITMI200319 2000-02-22

Publications (3)

Publication Number Publication Date
EP1127632A2 EP1127632A2 (en) 2001-08-29
EP1127632A3 true EP1127632A3 (en) 2002-03-06
EP1127632B1 EP1127632B1 (en) 2003-12-10

Family

ID=11444133

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00203669A Expired - Lifetime EP1127632B1 (en) 2000-02-22 2000-10-20 A process of straightening fragile pieces

Country Status (3)

Country Link
EP (1) EP1127632B1 (en)
DE (1) DE60007065T2 (en)
IT (1) IT1316652B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006010040B3 (en) * 2006-03-04 2007-10-11 Eisenbau Krämer mbH straightener
JP6076282B2 (en) * 2014-03-14 2017-02-08 ジヤトコ株式会社 How to bend the workpiece
CN112275846A (en) * 2020-11-04 2021-01-29 荆州环球汽车零部件制造有限公司 Camshaft straightening device and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154073A (en) * 1977-01-21 1979-05-15 Renzo Galdabini Automatic straightening machine
US4306435A (en) * 1978-07-26 1981-12-22 Renzo Galdabini Machine for automatically straightening-out elongate workpieces

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154073A (en) * 1977-01-21 1979-05-15 Renzo Galdabini Automatic straightening machine
US4306435A (en) * 1978-07-26 1981-12-22 Renzo Galdabini Machine for automatically straightening-out elongate workpieces

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MITZE M: "RICHTEN GEHAERTETER TEILE ANLAGEN UND VERFAHREN", HAERTEREI TECHNISCHE MITTEILUNGEN, CARL HANSER VERLAG. MUNCHEN, DE, vol. 55, no. 2, February 2000 (2000-02-01), pages 125 - 129, XP000949735, ISSN: 0341-101X *

Also Published As

Publication number Publication date
DE60007065D1 (en) 2004-01-22
EP1127632B1 (en) 2003-12-10
IT1316652B1 (en) 2003-04-24
DE60007065T2 (en) 2004-09-23
ITMI20000319A0 (en) 2000-02-22
ITMI20000319A1 (en) 2001-08-22
EP1127632A2 (en) 2001-08-29

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