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EP3021992B1 - Dispositif d'usinage d'une pièce - Google Patents

Dispositif d'usinage d'une pièce Download PDF

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Publication number
EP3021992B1
EP3021992B1 EP14750306.4A EP14750306A EP3021992B1 EP 3021992 B1 EP3021992 B1 EP 3021992B1 EP 14750306 A EP14750306 A EP 14750306A EP 3021992 B1 EP3021992 B1 EP 3021992B1
Authority
EP
European Patent Office
Prior art keywords
rolling
workpiece
region
tool
area
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.)
Active
Application number
EP14750306.4A
Other languages
German (de)
English (en)
Other versions
EP3021992A1 (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

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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 tool for machining a workpiece according to the preamble of claim 1.
  • the WO 2011/022747 A1 shows a device for cutting machining elongate workpieces for producing a thread-like outer profile by means of rotatable forming rolls.
  • the forming rollers rotate around the workpiece and pass during a complete rotation around the workpiece successively with this in a forming engagement.
  • the workpiece itself is non-rotatable about its axis during machining by means of the rolling head and movably mounted in the direction of its axis, for example by a hydraulic slide.
  • Object of the present invention is to accomplish the manufacture of such sensitive workpieces in a continuous process, in particular on 2-reel machines.
  • a thread is to be formed in a pipe, then it makes sense to provide two successive dies with different diameters.
  • the second rolling die following the first rolling die has one larger diameter in the profiling to be transmitted than the inlet roll jaw.
  • a thread with a smaller depth is produced, followed by a depression of a thread having a greater depth, but of course in the same thread.
  • this method is not only to be used in the manufacture of threads, but also in the transmission of other possible profiles.
  • the dies with different profiling do not follow each other immediately, but if there is arranged between a relaxation area in which the workpiece is not pressurized. In this area, the workpiece can relax and reorient itself back to the cylindrical shape before it is again exposed to another pressure of the subsequent rolling die. As a rule, after the first deformation, the workpiece has a higher resistance moment and should therefore regress to the cylinder shape before further deformation.
  • the rolling dies have an inlet area.
  • inlet area serves to gently pre-deform the workpiece and facilitates the pick-up by the roller. In the outlet area, the workpiece is released again.
  • 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
  • the rolling-in region 5 is followed by a rolling region 6, with a toothing 8 as a profile shape on a circumferential surface 7.
  • a short outlet region 9 adjoins the rolling region 6, 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 likewise begins with the expansion area 4 having an inlet area 10 which is of conical design, 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 is provided as a profile on a peripheral surface 13. This rolling jaw 3 has measured from the top of the toothing 14 from a diameter d3, which is formed larger than the diameter d2.
  • 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.

Landscapes

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

Claims (3)

  1. Outil rotatif pour l'usinage d'une pièce à usiner, en particulier un tuyau de faible épaisseur de paroi,
    caractérisé par le fait
    que l'outil (1) se compose d'au moins deux matrices de laminage successives (2, 3) et qu'entre deux matrices de laminage (2, 3) se trouve une zone de détente (4) et que la zone de détente (4) présente un diamètre plus petit (d1) que les matrices de laminage adjacentes (2, 3), au moins une matrice de laminage (2, 3) présentant une zone d'entrée (5, 10) et une zone de sortie (9, 11) et la zone d'entrée (5, 10) et la zone de sortie (9, 11) s'étendant inclinées de manière conique par rapport à un axe central (A) de l'outil (1), entre la zone d'entrée (5, 10) et la zone de sortie (9, 11) se trouvant une zone de laminage (6, 12), et une face périphérique (7, 13) de la matrice de laminage (2, 3) étant profilée.
  2. Outil selon la revendication 1, caractérisé par le fait qu'au moins deux matrices de laminage successives (2, 3) présentent un diamètre différent (d2, d3).
  3. Machine à laminer à rouleaux avec au moins un outil selon la revendication 1 ou 2, dans laquelle l'outil est déplaçable vers la pièce à usiner.
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 EP3021992A1 (fr) 2016-05-25
EP3021992B1 true 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
None *

Also Published As

Publication number Publication date
WO2015007386A1 (fr) 2015-01-22
ES2643516T3 (es) 2017-11-23
EP3021992A1 (fr) 2016-05-25
DE102013107603A1 (de) 2015-01-22

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