EP0300149A2 - Dispositif pour introduire une barre profilée dans une matrice de filage - Google Patents

Dispositif pour introduire une barre profilée dans une matrice de filage Download PDF

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Publication number
EP0300149A2
EP0300149A2 EP88107282A EP88107282A EP0300149A2 EP 0300149 A2 EP0300149 A2 EP 0300149A2 EP 88107282 A EP88107282 A EP 88107282A EP 88107282 A EP88107282 A EP 88107282A EP 0300149 A2 EP0300149 A2 EP 0300149A2
Authority
EP
European Patent Office
Prior art keywords
drawing die
die
jaws
bar
auxiliary
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
EP88107282A
Other languages
German (de)
English (en)
Other versions
EP0300149B1 (fr
EP0300149A3 (en
Inventor
Rudolf Bültmann
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.)
Bueltmann Monika
Original Assignee
Bueltmann Monika
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 Bueltmann Monika filed Critical Bueltmann Monika
Priority to AT88107282T priority Critical patent/ATE57631T1/de
Publication of EP0300149A2 publication Critical patent/EP0300149A2/fr
Publication of EP0300149A3 publication Critical patent/EP0300149A3/de
Application granted granted Critical
Publication of EP0300149B1 publication Critical patent/EP0300149B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C5/00—Pointing; Push-pointing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C5/00—Pointing; Push-pointing
    • B21C5/003—Pointing; Push-pointing of hollow material, e.g. tube
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C5/00—Pointing; Push-pointing
    • B21C5/006—Pointing; Push-pointing of solid material, e.g. wire or profiles

Definitions

  • the task of the innovation consists in a device with which an introduction into the drawing die can be carried out even with rods made of soft metal without loss of material.
  • a drawing bar which can be inserted into the drawing die without being pushed in, can be formed by a stretching process in the case of profiled bars made of soft metal, with no material loss occurring.
  • a waisted deformation is formed at a distance from the end of the bar with the aid of a tool, which corresponds to the desired cross section of the drawing die.
  • the rod is then pulled out of the auxiliary drawing die with a clamping device until the end is free, so that the desired drawing bar is formed up to the end of the rod by this drawing process. It is up to you to determine the length of the drawbar, depending on where the forming tool is attached.
  • the pressures to be used in the deformation are limited, since the deformation is limited to a relatively small rod length.
  • the further invention relates to the special design of a shaping tool with which rectangular cross sections or square cross sections of any size can be formed and which can thus be used universally.
  • this tool can be used in a position close to the actual drawing die for guiding the undeformed rod during the actual drawing process.
  • a waisted deformation is formed on the bar 2 at a distance from the bar end with the aid of an auxiliary drawing die 4.
  • the waisted deformation of the profile bar 2 has the cross section of the desired drawing bar, in the embodiment one Square cross section.
  • the two jaws of the clamping device grip the profile bar in front of the auxiliary drawing die 4 and pull the bar through the auxiliary drawing die to the end, a drawing bar 2a being formed by stretching the material.
  • This deformation can be seen in FIG. 3.
  • the auxiliary drawing die 4 is set so that the drawing die 2a is released so that it can be inserted into the drawing die with the aid of the clamping device 3, as shown in FIG. 4.
  • the auxiliary drawing die 4 can be used as a guide element. For this purpose, it is moved directly in front of the drawing die 1 and the die cross section is adjusted in accordance with the undeformed rod cross section, so that guidance is given in front of the drawing die during the further drawing process.
  • the actual drawing process takes place in a manner known per se, by touching a drawing carriage on drawing die 2a to the left of drawing die 1 and pulling the profile bar through the die.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Extraction Processes (AREA)
  • Earth Drilling (AREA)
EP88107282A 1987-07-24 1988-05-06 Dispositif pour introduire une barre profilée dans une matrice de filage Expired - Lifetime EP0300149B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88107282T ATE57631T1 (de) 1987-07-24 1988-05-06 Vorrichtung zum einfuehren eines profilstabes in eine ziehmatrize.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19873724472 DE3724472A1 (de) 1987-07-24 1987-07-24 Vorrichtung zum einfuehren eines profilstabes in eine ziehmatrize
DE3724472 1987-07-24

Publications (3)

Publication Number Publication Date
EP0300149A2 true EP0300149A2 (fr) 1989-01-25
EP0300149A3 EP0300149A3 (en) 1989-07-26
EP0300149B1 EP0300149B1 (fr) 1990-10-24

Family

ID=6332242

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88107282A Expired - Lifetime EP0300149B1 (fr) 1987-07-24 1988-05-06 Dispositif pour introduire une barre profilée dans une matrice de filage

Country Status (3)

Country Link
EP (1) EP0300149B1 (fr)
AT (1) ATE57631T1 (fr)
DE (2) DE3724472A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8051694B2 (en) * 2007-02-22 2011-11-08 Honda Motor Co., Ltd. Method of and apparatus for manufacturing shaft
CN108838225A (zh) * 2018-08-09 2018-11-20 安陆火凤凰铝材有限责任公司 一种铝管制头机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE938785C (de) * 1952-01-10 1956-02-09 Albert Calmes Einer Zieh- bzw. Stossbank fuer Rohre unmittelbar vorgeordnete, die beidseitig offenen, auszustreckenden Luppen mit dem Stossdorn kraftschluessig verbindende Einzieheinrichtung
DE1954575B2 (de) * 1969-10-30 1972-02-17 Fa. Friedr. Krollmann, 5990 Altena Verformungspresse mit mindestens drei sternfoermig angeord neten prismatischen pressbacken insbesondere zum anangeln von rohren
US3802244A (en) * 1972-12-29 1974-04-09 A Jackman Apparatus and method for pointing wire
DE2951715C2 (de) * 1979-12-19 1982-09-09 Mannesmann AG, 4000 Düsseldorf Vorrichtung zum Kaltangeln von Rohren
DE3600700A1 (de) * 1986-01-13 1987-07-23 Rudolf Bueltmann Maschine zum stossen von rohrziehangeln (pushpointer)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8051694B2 (en) * 2007-02-22 2011-11-08 Honda Motor Co., Ltd. Method of and apparatus for manufacturing shaft
CN108838225A (zh) * 2018-08-09 2018-11-20 安陆火凤凰铝材有限责任公司 一种铝管制头机

Also Published As

Publication number Publication date
DE3724472A1 (de) 1989-02-02
EP0300149B1 (fr) 1990-10-24
DE3860880D1 (de) 1990-11-29
EP0300149A3 (en) 1989-07-26
ATE57631T1 (de) 1990-11-15

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