EP3021992A1 - Dispositif d'usinage d'une pièce - Google Patents

Dispositif d'usinage d'une pièce

Info

Publication number
EP3021992A1
EP3021992A1 EP14750306.4A EP14750306A EP3021992A1 EP 3021992 A1 EP3021992 A1 EP 3021992A1 EP 14750306 A EP14750306 A EP 14750306A EP 3021992 A1 EP3021992 A1 EP 3021992A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
rolling
tool
profiling
successive
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
EP14750306.4A
Other languages
German (de)
English (en)
Other versions
EP3021992B1 (fr
Inventor
Arne Höltich
Helmut Sproll
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.)
Rollwalztechnik Abele and Holtich GmbH
Original Assignee
Rollwalztechnik Abele and Holtich GmbH
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 Rollwalztechnik Abele and Holtich GmbH filed Critical Rollwalztechnik Abele and Holtich GmbH
Publication of EP3021992A1 publication Critical patent/EP3021992A1/fr
Application granted granted Critical
Publication of EP3021992B1 publication Critical patent/EP3021992B1/fr
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
    • B21H3/04—Making by means of profiled-rolls or die rolls
    • B21H3/042—Thread-rolling heads
    • B21H3/044—Thread-rolling heads working axially
    • 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
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/20—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes or tubes with decorated walls
    • B21C37/205—Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes or tubes with decorated walls with annular guides

Definitions

  • the invention relates to a device for processing a workpiece, in particular a pipe with a small wall thickness, by means of at least one rotatable tool which is movable toward the workpiece.
  • Object of the present invention is to accomplish the manufacture of such sensitive workpieces in a continuous process, in particular on 2-reel machines.
  • the tool consists of at least two successive dies.
  • the rolling dies have an inlet region.
  • that only one rolling jaw is provided with an inlet region.
  • the inlet area is used for gentle pre-forming of the workpiece and facilitates the recording through the roller. In the outlet area, the workpiece is released again.
  • the invention also provides a method for machining a workpiece, in particular a tube with a small wall thickness, by means of at least one rotatable tool which is moved towards the workpiece, wherein at least two successive rolling jaws produce a profiling in the workpiece.
  • This generated profiling has a different depth in a preferred embodiment.
  • An inventive tool 1 for processing a workpiece not shown in detail has two dies 2 and 3. Both rolling jaws 2 and 3 are connected to each other via a relaxation area 4. This preferably consists of a cylinder portion and has a diameter d1.
  • the rolling jaws 2 and 3 are formed as inlet rolling jaws and have an inlet region 5 and 10. These are designed conically and extend obliquely to a rotational axis A of the tool first
  • a short outlet area 9 which can also be referred to as a chamfer.
  • the peripheral surface 7 of the rolling region 6 measured from the top of the toothing 8 from a diameter d2.
  • the rolling jaw 3 is arranged on the relaxation area 4. It also begins at the relaxation area 4 with an inlet area 10 which is configured conically, as well as an outlet area 11. Between the inlet area 10 and the outlet area 11, a rolling area 12 with a toothing 14 as profile shape is provided on a peripheral surface 13. This rolling jaw 3 has from the top of the toothing 14 measured a diameter d3, which is larger than the diameter d2.
  • a toothing for example, a thread with a certain slope or even a toothing without inclination are introduced.
  • the rolling rolling machines described in the prior art in which usually two corresponding tools are provided, which are to be adjusted to the workpiece to be machined.
  • the tube is inserted parallel to the axis of rotation of the tools between them. This is done first along the inlet region 5, in which the workpiece is preformed until the workpiece reaches the actual rolling region 6 of the rolling die 2.
  • the profile shape 8 of the rolling jaw 2 is pressed to the desired first depth of calibration in the workpiece or its peripheral surface, so that there arises the corresponding pre-profile. If the workpiece is produced in a continuous process, the workpiece is automatically transported further during roll rolling along the axis of rotation A. In this case, the workpiece is released in the outlet region 9 of the rolling jaw 2 and can relax in the relaxation area 4.
  • the workpiece hits the inlet area 10 of the rolling jaw 3 and further onto the rolling area 12 with the profile shape 14. Since this rolling jaw 3 has a larger diameter d3 than the diameter d2 of the rolling jaw 2, the teeth are pressed deeper into the latter Workpiece. It goes without saying that this process can also be continued with a third or fourth rolling die, but it has generally been found in practice that two successive rolling dies suffice.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Metal Rolling (AREA)
  • Forging (AREA)

Abstract

L'invention concerne un dispositif d'usinage d'une pièce, notamment d'un tube de faible épaisseur, au moyen d'au moins un outil rotatif (1) pouvant être déplacé en direction de la pièce. Selon l'invention, l'outil (1) est composé d'au moins deux mâchoires de laminage consécutives (2, 3).
EP14750306.4A 2013-07-17 2014-07-16 Dispositif d'usinage d'une pièce Active EP3021992B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201310107603 DE102013107603A1 (de) 2013-07-17 2013-07-17 Vorrichtung zum Bearbeiten eines Werkstücks
PCT/EP2014/001938 WO2015007386A1 (fr) 2013-07-17 2014-07-16 Dispositif d'usinage d'une pièce

Publications (2)

Publication Number Publication Date
EP3021992A1 true EP3021992A1 (fr) 2016-05-25
EP3021992B1 EP3021992B1 (fr) 2017-07-12

Family

ID=51302689

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14750306.4A Active EP3021992B1 (fr) 2013-07-17 2014-07-16 Dispositif d'usinage d'une pièce

Country Status (4)

Country Link
EP (1) EP3021992B1 (fr)
DE (1) DE102013107603A1 (fr)
ES (1) ES2643516T3 (fr)
WO (1) WO2015007386A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8713454U1 (de) 1987-10-07 1988-02-04 Rollwalztechnik Abele + Höltich GmbH, 7707 Engen Vorrichtung zum Walzen von Gewinden od. dgl. Profilen
JPH02165875A (ja) * 1988-12-16 1990-06-26 Furukawa Electric Co Ltd:The 伝熱管およびその製造方法
DE69525594T2 (de) * 1994-11-17 2002-08-22 Carrier Corp., Syracuse Wärmeaustauschrohr
DE10156374C1 (de) * 2001-11-16 2003-02-27 Wieland Werke Ag Beidseitig strukturiertes Wärmeaustauscherrohr und Verfahren zu dessen Herstellung
DE102006008083B4 (de) * 2006-02-22 2012-04-26 Wieland-Werke Ag Strukturiertes Wärmeaustauscherrohr und Verfahren zu dessen Herstellung
DE102009038813B4 (de) * 2009-08-31 2012-09-27 Dywidag-Systems International Gmbh Vorrichtung zur spanlosen Bearbeitung langgestreckter Werkstücke

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2015007386A1 *

Also Published As

Publication number Publication date
EP3021992B1 (fr) 2017-07-12
WO2015007386A1 (fr) 2015-01-22
ES2643516T3 (es) 2017-11-23
DE102013107603A1 (de) 2015-01-22

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