EP1799381A1 - Outil pour usiner des profiles de pneumatique de roue - Google Patents

Outil pour usiner des profiles de pneumatique de roue

Info

Publication number
EP1799381A1
EP1799381A1 EP05783441A EP05783441A EP1799381A1 EP 1799381 A1 EP1799381 A1 EP 1799381A1 EP 05783441 A EP05783441 A EP 05783441A EP 05783441 A EP05783441 A EP 05783441A EP 1799381 A1 EP1799381 A1 EP 1799381A1
Authority
EP
European Patent Office
Prior art keywords
tool
cutting
wheel
rotation
tool according
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.)
Withdrawn
Application number
EP05783441A
Other languages
German (de)
English (en)
Inventor
Alfred Heimann
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.)
Hegenscheidt MFD GmbH and Co KG
Original Assignee
Hegenscheidt MFD GmbH and Co KG
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 Hegenscheidt MFD GmbH and Co KG filed Critical Hegenscheidt MFD GmbH and Co KG
Publication of EP1799381A1 publication Critical patent/EP1799381A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
    • B23B5/28—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor for turning wheels or wheel sets or cranks thereon, i.e. wheel lathes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/10—Cutting tools with special provision for cooling
    • B23B27/12—Cutting tools with special provision for cooling with a continuously-rotated circular cutting edge; Holders therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2215/00—Details of workpieces
    • B23B2215/36—Railway wheels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T407/00—Cutters, for shaping
    • Y10T407/22—Cutters, for shaping including holder having seat for inserted tool
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T82/00—Turning
    • Y10T82/18—Lathe for wheel or axle

Definitions

  • the invention relates to a tool for machining the wheel tire profile of wheels of a wheel set of railway vehicles on a Radsatznavmaschine with a cylindrical or mushroom-shaped cutting plate of a hard material, such.
  • Carbide or cutting ceramic which is mounted on a cutter support, which in turn is mounted in a tool support, which is displaceable in the x and z-direction of the wheel lathe.
  • chip breakers and bumps are mounted by the tool manufacturers on the cutting plates of turning tools, which should in principle compress the chip so far that its deformability is exceeded, so that it breaks. It is customary for the manufacturers to state in which areas of the feed and the depth of cut these chip deflectors take effect.
  • EP 0 346 505 discloses a method for ⁇ . Generation of shavings during the turning of workpieces, in particular wheels of wheelsets of railway vehicles, known. The amount of feed speed of the rotary tool is changed for short times during the rotation of the wheelset. Within a short time, the tool cutting edge along the wheel tire profile is retracted each time to the forward feed line in the original direction and to the previous amount of the feed speed which is intended for further processing.
  • the known method produces an increased roughness in a certain area. It can not be arbitrarily short chips generated because the support speeds are limited.
  • DE 33 05 700 C2 has the goal of producing high surface quality, as it is carried out in the cutting finishing of calender paper rolls, for the processing of metals and their alloys and non-metallic items on lathes.
  • the known method is very similar to the rotary milling and describes the relative positions of the tool and workpiece and their relative rotational movements to each other. Again, it is not spoken of breaking the chips removed.
  • the tool which is furthermore known from US Pat. No. 5,014,581 is intended for use on lathes for machining high-alloyed and difficult-to-turn metals at high cutting speeds.
  • wear is to be reduced and the service life increased.
  • This is achieved with the aid of a cutting tool, which is either driven by the workpiece itself or from outside and has an annular disk as a cutting edge. This results in a cutting process in which constantly a fresh cutting edge is introduced into the cutting zone in addition to the usual feed.
  • the rotary driven tool provides a wide range of possibilities, some of which result in lower cutting forces, increased shear angle, increased tool life and better finish.
  • this document does not point to the generation of chip breakage.
  • the task for the invention to propose a tool that in all work areas of Reprofiling of wheels of wheelsets of railway vehicles is able to bring about the breaking of shavings. This should be possible with both large and small chip cross sections.
  • the tool should be configured as simple and reliable as possible in its construction.
  • a tool for rotating the wheel tire profile of wheels of a wheel set of railway vehicles is proposed on a Radsatznavmaschine in which the blade carrier at an acute angle ( ⁇ ) to the tangent to the circle of a section in a plane arranged perpendicularly through the Radsammlungprofil and rotatable about its longitudinal axis and is drivable.
  • This tool produces chip breaking even at low cutting depths.
  • cylindrical or mushroom-shaped cutting inserts are made of a hard material, such as e.g. Carbide or cutting ceramic, used, which are known per se. Due to the rotation of such circular cutting plates, which are intended for heavy machining in Radsatzzerspanung, chip breaking can also be brought about in areas where otherwise no chip breaking occurs, thus primarily at low depths.
  • the rotation of the cutting plate is done by motor with adjustable speed and variable direction of rotation. Due to the rotation of the cutting plate, the chip running over the cutting plate is additionally deformed. By choosing the direction of rotation and rotation speed, the chip can be steered against a fixed obstacle.
  • the cutting tool which is given a special shape, can itself be the workpiece, for example the flank of the wheel set.
  • the rotational movement need not be uniform, but it is possible after a certain time, for example, 100 ms, as soon as the chip has a certain length (eg unwound 100 mm), bring about the chip breakage with a short rotational movement.
  • the cutting plate is rotated by the CNC control of the wheel lathe. It is provided to make both the direction of rotation and the rotational speed of the cutting plate according to the respective processing situation variable. Likewise, according to the cutting pressure at large cutting depths and feeds, the rotational movement of the cutting plate can be stopped. This is also for the mechanical design of the drive advantageous because it has to muster only low torques.
  • the tool is intended for the machining of wheelsets for railway vehicles with a wheel diameter between 850 mm and 1250 mm for full tracks and 600 mm for tram vehicles.
  • the bearing of the rotating tool is directly and is limited to very small space.
  • the available space can be increased even more.
  • it makes sense to make a further misalignment of the axis of rotation of the tool in the direction of the axis of rotation of the wheelset also with regard to the collision with the flange of the wheel. But such misalignment can also be done in the tool itself be taken into account.
  • FIG. 1 shows a first embodiment of a cutting tool, in a greatly simplified and largely schematic representation
  • FIG. 2 shows a second embodiment of a cutting tool
  • FIG. 3 shows the drive of a tool in section
  • - Fig. 4 shows the section through a tire profile in natural size.
  • the tire profile 1 of FIG. 4 consists of a tread portion 2 and a flange portion 3. A section which is placed approximately in the middle of the tread portion 2 perpendicular through the RadMailprofil 1, referred to as measuring circle level 4.
  • FIG. 4 also shows the machining directions x, y and z of the wheel lathe. The y direction extends perpendicular to the drawing plane of FIG. 4.
  • FIG. 1 shows a section through the wheel 5 approximately at the level of the measuring circle plane 4 of FIG. 4.
  • the tool 7 consists of a blade carrier 8 and a mushroom-shaped cutting plate 9 made of hard metal.
  • the blade carrier 8 and the cutting plate 9 are rotatably connected to each other and additionally have projections and recesses 10, over which they are interlocked.
  • the tool 7 is rotatably mounted in a tool support (not shown) of the lathe in the direction of the double arrow 11.
  • the axis of rotation 12 is arranged at an acute angle ⁇ to the tangent 13 to the measuring circle plane 4 of the wheel 5.
  • the "mushroom-shaped cutting plate 9 is designed in such a way that it has outwardly inclined flanks 14 and has a recess 15 in its center.
  • a cutter support 16 carries a cylindrical cutting plate 17. Also in this case, a toothing 18 is provided between the cutter support 16 and the cylindrical cutting plate 17.
  • the cutter support 16 with the cylindrical cutting plate 17 is rotatably mounted about its axis of rotation 19 in the support (not shown) of a Radsatztaxmaschine. The sharp one
  • Angle ⁇ between the axis of rotation 19 and the Radtangente 20 is significantly smaller in the case of Fig. 2 than in FIG. 1.
  • This arrangement requires a bottle neck shape of the cutter support 16 so that it can be brought as close as possible to the wheel 5.
  • a tool 21 which has a cylindrical cutting plate 22.
  • the cutting plate 22 is soldered on a bolt 23, which consists of high-strength steel.
  • the finishing of the pin 23 takes place in the interest of concentricity of the cutting plate 22 only after the soldering of the cutting plate 22 on the bolt 23.
  • the bolt 23 is mounted in a flachkegeligen bearing shell 24. This has the task to transfer the cutting forces coming from the main section of the cutting and the advancing and passive forces into the basic holder 25, without the cylindrical part of the pin 23 being loaded too heavily.
  • the bearing shell 24 is a wearing part and is exchanged with the cylindrical cutting plate 22.
  • the bolt 23 has at the lower end 26 a splined 2> 7, which engages in a hardened bevel gear 28.
  • the bevel gear 28 is roller-mounted independently of the pin 23.
  • a second bevel gear 30 transmits the torque generated upon rotation of the cylindrical insert 22 about the rotation axis 31 to a controllable servo motor (not shown) via a high-ratio planetary gear (not shown).
  • a bolt 32 which carries the second bevel gear 30 that meshes with the bevel gear 28.
  • the base holder 25 is slidably mounted in the wheelset lathe in the x, y and z directions.
  • the axis of rotation 31 of the cylindrical cutting plate 22 is inclined to the Radtangente 33 at the angle ⁇ .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)
  • Milling Processes (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

La présente invention concerne un outil comprenant une plaque de coupe cylindrique (22) ou fongiforme (9), réalisée dans un matériau dur tel que du métal dur ou de la céramique de coupe, qui est fixée sur un support de coupe (8, 16, 23) qui se trouve dans un support d'outil qui peut se déplacer dans les directions X et Z d'un tour, le support de coupe (8, 16, 23) étant disposé en formant un angle aigu (α) avec la tangente (13, 20, 33) au cercle d'une coupe dans un plan (4) perpendiculaire à un profilé de pièce (1), et pouvant tourner et être entraîné autour de son axe longitudinal (12, 19, 31). L'outil permet selon l'invention, dans tous les zones actives du reprofilage des roues d'essieux de véhicules ferroviaires, de provoquer la rupture des copeaux, et se caractérise par une structure de simplicité maximale et une bonne fiabilité de fonctionnement. A cet effet, pour permettre la rotation du profilé de pneumatique de roue (1) des roues (5) d'un essieu de véhicules ferroviaires, l'outil est mis en place sur un tour à roues, pour la réalisation de différentes épaisseurs de copeaux, au cours d'une coupe de reprofilage unique.
EP05783441A 2004-09-10 2005-08-25 Outil pour usiner des profiles de pneumatique de roue Withdrawn EP1799381A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004044372A DE102004044372B4 (de) 2004-09-10 2004-09-10 Werkzeug zum Bearbeiten von Radreifenprofilen
PCT/EP2005/009186 WO2006027114A1 (fr) 2004-09-10 2005-08-25 Outil pour usiner des profiles de pneumatique de roue

Publications (1)

Publication Number Publication Date
EP1799381A1 true EP1799381A1 (fr) 2007-06-27

Family

ID=35385552

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05783441A Withdrawn EP1799381A1 (fr) 2004-09-10 2005-08-25 Outil pour usiner des profiles de pneumatique de roue

Country Status (5)

Country Link
US (1) US20080202296A1 (fr)
EP (1) EP1799381A1 (fr)
CN (1) CN101043962A (fr)
DE (1) DE102004044372B4 (fr)
WO (1) WO2006027114A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006055299B4 (de) * 2006-11-23 2009-04-02 Hegenscheidt-Mfd Gmbh & Co. Kg Portal-Radsatzdrehmaschine
US8177115B1 (en) 2010-03-12 2012-05-15 Craig Mercier Method and system for retreading track wheel
US8662375B2 (en) 2010-03-12 2014-03-04 Craig Mercier Method and system for retreading track wheel
BR112018068318B1 (pt) * 2016-03-17 2022-12-27 Hegenscheidt Mfd Gmbh Processo para medição e cálculo de parâmetros geométricos das rodas de um conjunto de rodas para veículos sobre trilhos
CN114147500B (zh) * 2021-11-08 2022-11-18 深圳市高士达精密机械有限公司 一种便于移动的数控车床

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE558905C (de) * 1930-10-29 1932-09-14 Alexander Ignatieff Werkzeug mit selbsttaetig sich drehendem Schneidkoerper
BE465133A (fr) * 1943-04-14
US2893479A (en) * 1956-11-19 1959-07-07 James V Sheridan Tire truing device comprising hydraulically operated tire support and adjustable cam operated cutting tool
US3598017A (en) * 1969-03-10 1971-08-10 Stanray Corp Wheel truing machine
DE2339588C3 (de) * 1973-08-04 1979-08-16 Wilhelm Hegenscheidt, Gmbh, 5140 Erkelenz Prismatischer Wendeschneidkörper
US3993115A (en) * 1975-10-17 1976-11-23 Greene Aubrey E Tire truing machine
US4223580A (en) * 1978-09-19 1980-09-23 Sidorenko Valery A Rotary cutting tool
DE2937513A1 (de) * 1979-09-17 1981-04-02 The University of Western Australia, Nedlands, Westaustralien Verfahren zum spanabhebenden bearbeiten und sich drehendes schneidwerkzeug zu dessen durchfuehrung
DE3305700C2 (de) * 1982-05-18 1985-09-12 Mogilevskoe otdelenie fiziko-techničeskogo instituta Akademii Nauk Belorusskoj SSR, Mogilev Verfahren zur Bearbeitung von Drehkörpern auf einer Werkzeugmaschine mit einem Rotationsmeißel
DE8509180U1 (de) * 1985-03-27 1985-06-20 Hoesch Maschinenfabrik Deutschland Ag, 4600 Dortmund Unterflur-Radsatzdrehmaschine zum Reprofilieren der Radreifenumrisse von Eisenbahn-Radsätzen
DE3880828D1 (de) * 1988-06-14 1993-06-09 Hegenscheidt Gmbh Wilhelm Verfahren zur erzeugung von bruchspaenen bei der drehbearbeitung von werkstuecken.
US5014581A (en) * 1989-07-12 1991-05-14 The United States Of America As Represented By The Secretary Of The Air Force Apparatus for machining
DE59302920D1 (de) * 1993-04-03 1996-07-18 Hegenscheidt Mfd Gmbh Verfahren zur Reprofilierung der jeweils aus Lauf- und Spurkranzfläche zusammengesetzten Radprofilflächen an Rädern von Eisenbahnradsätzen
US5478175A (en) * 1993-08-24 1995-12-26 Greenleaf Corporation Cutting insert assembly
US5921731A (en) * 1996-12-31 1999-07-13 The Ingersoll Milling Machine Company High speed hydrostatic spindle

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006027114A1 *

Also Published As

Publication number Publication date
CN101043962A (zh) 2007-09-26
DE102004044372B4 (de) 2008-09-11
DE102004044372A1 (de) 2006-03-30
US20080202296A1 (en) 2008-08-28
WO2006027114A1 (fr) 2006-03-16

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