EP0767723A1 - Tour a commande numerique - Google Patents

Tour a commande numerique

Info

Publication number
EP0767723A1
EP0767723A1 EP96905851A EP96905851A EP0767723A1 EP 0767723 A1 EP0767723 A1 EP 0767723A1 EP 96905851 A EP96905851 A EP 96905851A EP 96905851 A EP96905851 A EP 96905851A EP 0767723 A1 EP0767723 A1 EP 0767723A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
spindle
tool
slide
axis
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Withdrawn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
EP96905851A
Other languages
German (de)
English (en)
Inventor
Erhard Schalles
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.)
DMG Mori AG
Original Assignee
Gildemeister AG
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 Gildemeister AG filed Critical Gildemeister AG
Publication of EP0767723A1 publication Critical patent/EP0767723A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
    • B23Q39/04—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being arranged to operate simultaneously at different stations, e.g. with an annular work-table moved in steps
    • B23Q39/048—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being arranged to operate simultaneously at different stations, e.g. with an annular work-table moved in steps the work holder of a work station transfers directly its workpiece to the work holder of a following work station
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B3/00—General-purpose turning-machines or devices, e.g. centre lathes with feed rod and lead screw; Sets of turning-machines
    • B23B3/30—Turning-machines with two or more working-spindles, e.g. in fixed arrangement
    • 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
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5104—Type of machine
    • Y10T29/5109—Lathe
    • Y10T29/5114—Lathe and 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
    • Y10T29/00—Metal working
    • Y10T29/51—Plural diverse manufacturing apparatus including means for metal shaping or assembling
    • Y10T29/5152—Plural diverse manufacturing apparatus including means for metal shaping or assembling with turret mechanism
    • Y10T29/5153—Multiple turret
    • 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
    • Y10T82/25—Lathe
    • Y10T82/2524—Multiple
    • 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
    • Y10T82/25—Lathe
    • Y10T82/2585—Tool rest
    • Y10T82/2587—Turret type holder [e.g., multiple tools, etc.]

Definitions

  • the invention relates to a numerically controlled lathe according to the preamble of claim 1.
  • the counter spindle can be moved in the x direction by means of a hydraulic drive.
  • This movability of the counter spindle in the x direction by means of a special drive is necessary, since in the known solution a parting off operation can only be carried out by means of a parting tool which sits on the tool turret, which is seated on the same slide as the counter spindle .
  • the positioning of the counter spindle by the hydraulic drive leads to a reduction in accuracy.
  • the existing second tool carrier is arranged stationary. Simultaneous machining on the main and counter spindle is not possible with the known machine.
  • a lathe is also known (JP-A 6-703) which has a counter spindle arranged on a cross slide and two switching tool carriers which can be moved in the x direction.
  • One of the tool carriers has two groups of tools, one of which is designed for machining workpieces on the main spindle and the other for machining workpieces on the counter spindle.
  • the object of the invention is to design such a lathe in such a way that it can simultaneously machine the workpieces on the workpiece spindle and counter spindle, the number of axes of this machine being kept as small as possible.
  • the machine according to the invention permits simultaneous machining despite a comparatively simple opening.
  • the accuracy of this machine is higher than that of a lathe whose counter spindle can be moved relative to the tool turret is.
  • the arrangement of the counter spindle is considerably stiffer in the solution according to the invention.
  • the lathe is designed for simultaneous machining of the workpieces clamped on the workpiece spindle and on the counter spindle with tools whose spatial assignment to one another remains unchanged during the machining process in the x-direction or in the z-direction.
  • Such a rigid assignment during the machining process leads to high machining speeds with high machining accuracy.
  • the second slide with the second tool carrier can also be moved in the direction of the workpiece spindle axis and the numerical control processes the path information of the first slide carrying the counter spindle with the path commands for the second slide in such a way that while the machining by the tools of the tool turret on the workpiece clamped in the workpiece spindle, the tools of the second slide, which work on the workpiece clamped in the counter spindle, are tracked.
  • the slide travel distances are usually calculated from a machine-fixed reference point.
  • the reference point for the counter spindle is dependent on the movement of the first slide can be varied so that the feed paths of the second slide must be calculated and controlled from the instantaneous position of the reference point, the compensation position.
  • FIG. 1 shows a schematic plan view of an embodiment with components shown partially in section.
  • a workpiece spindle 1b is mounted in a stationary spindle box 1, which carries a workpiece 2 in a first setting and which rotates about a workpiece spindle axis 1a.
  • a longitudinal channel is drilled into the workpiece 2 from the front by means of a drill 3b.
  • the drill 3b is arranged on the front of a tool turret, denoted overall by 3.
  • the tool turret 3 is penetrated in the longitudinal direction by a drive shaft 3e.
  • the drive shaft 3e is driven from the rear.
  • the rotational movement of the drive shaft 3e is transmitted by means of a spur gear 3f and an intermediate gear 3g to a gear 3h which is firmly connected to the chuck for the drill 3b.
  • the drive shaft 3e can be connected to or separated from the drive wheel 3i on the rear of the tool turret 3 by means of a switchable coupling 3d.
  • the tool turret 3 sits on an x-slide 5, which in turn sits on a z-slide 6.
  • a counter spindle 4 is mounted on the x-slide 5 in an arrangement parallel to the axis.
  • the axis of rotation 4a of the counter spindle 4 runs parallel to the switching axis 3a of the tool turret 3.
  • a drive motor 9 is also arranged in a parallel arrangement of the axis of rotation 9a.
  • the tool turret 3, the drive motor 9 and the counter spindle 4 or their respective housings are fixedly mounted on the x slide.
  • the drive motor 9 has a drive wheel 9b, the rotational movement of which is transmitted via a drive belt 10 both to the drive wheel 3i of the tool turret 3 and to a drive wheel 4b of the counter spindle.
  • a workpiece 2 ' is clamped into the counter spindle 4 and has already been drilled in the workpiece spindle 1b on its front side in the first clamping.
  • a drill 7b In the back of the workpiece 2 'is drilled into a further hole by means of a drill 7b.
  • the drill 7b is located on the front side of a workpiece carrier 7 designed as a turret disk.
  • Another rotary tool, namely a turning tool 7c is located on the front side, likewise for machining the workpiece 2 '.
  • the tools shown on the tool turret 3, that is, the turning tool 3c and the drill 3b, as well as the tools shown on the tool carrier 7, that is, the turning tool 7c and the drill 7b, are only shown by way of example.
  • a parting tool 7a is arranged on the circumference of the tool carrier 7, which is designed as a turret disk. This tool is adjustable in the z direction and displaceable on the circumference of the turret disk.
  • the tool holder 7 is located on a cross slide 8 which can be moved in the direction x2.
  • the cross slide 8 can sit on a longitudinal slide, so that the tool carrier 7 is arranged on a cross slide.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Turning (AREA)

Abstract

L'invention concerne un tour à commande numérique équipé d'une poupée fixe (1) et d'une broche (1b) montée en rotation à l'intérieur de cette poupée, servant à fixer une pièce (2) dans un premier mandrin, ledit tour présentant une contre-broche (4) servant à fixer, de manière qu'elle tourne, la pièce (2') dans un deuxième mandrin. Le tour comporte en outre une tourelle porte-outil (3) couplable de façon à tourner autour d'un axe (3a), laquelle est montée sur un premier chariot (5, 6) déplaçable suivant deux directions perpendiculaires entre elles. Ce premier chariot (5, 6) porte également la contre-broche (4). En plus de la broche (1b) est disposé un deuxième porte-outil (7). La contre-broche (4) et la tourelle porte-outil (3) sont montées sur le premier chariot (5, 6), en position relative constante, et le deuxième porte-outil (7) est monté sur un deuxième chariot (8) qui est déplaçable au moins dans une direction perpendiculaire à l'axe (1a) de la broche. Ce deuxième porte-outil (7) porte deux groupes (7a; 7b) d'outils, dont l'un (7a) est prévu et agencé pour l'usinage de la pièce (2) au moyen de la broche (1b), et l'autre (7b) est prévu et agencé pour l'usinage de la pièce (2') au moyen de la contre-broche (4).
EP96905851A 1995-04-13 1996-03-01 Tour a commande numerique Withdrawn EP0767723A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19513963A DE19513963C2 (de) 1995-04-13 1995-04-13 Numerisch gesteuerte Drehmaschine mit einer Gegenspindel
DE19513963 1995-04-13
PCT/EP1996/000877 WO1996032224A1 (fr) 1995-04-13 1996-03-01 Tour a commande numerique

Publications (1)

Publication Number Publication Date
EP0767723A1 true EP0767723A1 (fr) 1997-04-16

Family

ID=7759598

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96905851A Withdrawn EP0767723A1 (fr) 1995-04-13 1996-03-01 Tour a commande numerique

Country Status (5)

Country Link
US (1) US5787560A (fr)
EP (1) EP0767723A1 (fr)
JP (1) JPH10501758A (fr)
DE (1) DE19513963C2 (fr)
WO (1) WO1996032224A1 (fr)

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Publication number Priority date Publication date Assignee Title
FR2758488B1 (fr) * 1997-01-20 1999-02-12 Jean Michel Delacou Dispositif d'usinage par enlevement de copeaux, a bloc massif et colonne coulissante et machine incorporant ce dispositif
DE19713872A1 (de) * 1997-04-04 1998-10-08 Carl Benzinger Gmbh & Co Werkzeugmaschine
US6173630B1 (en) * 1998-02-26 2001-01-16 Hsuan Lung Wu Working machine for machining a workpiece
DE19836348C5 (de) * 1998-08-11 2006-12-14 Erwin Junker Maschinenfabrik Gmbh Werkzeugaufnahme für eine CNC-gesteuerte Hartdrehmaschine
US6785943B2 (en) 1998-09-04 2004-09-07 Hardinge, Inc. Indexing tool turret
US7032265B2 (en) * 1998-09-09 2006-04-25 Standers, Inc. Assist device for getting into and out of sitting or prone positions on beds and similar furniture
US6971294B1 (en) 2000-03-10 2005-12-06 Citizen Watch Co., Ltd. Numerically controlled lathe and method of machining work using this numerically controlled lathe
US6675451B1 (en) * 2000-05-10 2004-01-13 Toshiharu Miyano Machine tool and method of using the machine tool
CN1236883C (zh) 2000-09-22 2006-01-18 时至准钟表股份有限公司 数控车床及运用该数控车床对产品的加工方法
JP4090888B2 (ja) * 2001-05-15 2008-05-28 シチズンホールディングス株式会社 数値制御旋盤及びこの数値制御旋盤によるワークの加工方法
DE10130760A1 (de) * 2001-06-22 2003-01-09 Traub Drehmaschinen Gmbh Drehmaschine
JP3756143B2 (ja) * 2002-03-18 2006-03-15 株式会社ミヤノ 工作機械及び対向主軸型工作機械
US20040007653A1 (en) * 2002-07-12 2004-01-15 Zesk Kathryn Gardner Ground anchoring device for floral pots, baskets and containers
US6901829B2 (en) * 2003-08-15 2005-06-07 Hsuan-Lung Wu Turret lathe with a clutch for operating between chamfering and turning operation modes
EP2012953A2 (fr) * 2006-04-07 2009-01-14 Steven S. Miyano Machine-outil compacte commandée par ordinateur à plusieurs broches haute précision
DE102008050656A1 (de) * 2008-09-22 2010-03-25 Traub Drehmaschinen Gmbh & Co. Kg Werkzeugmaschine
US9162289B2 (en) 2011-09-12 2015-10-20 Mazak Corporation Machine tool apparatus and method
US10007247B2 (en) 2013-04-30 2018-06-26 Mitsubishi Electric Corporation Numerical control device with plurality of spindles and associated synchronous tapping
DE102014203402B3 (de) 2014-02-25 2015-07-09 Erwin Junker Maschinenfabrik Gmbh Schleifmaschine und verfahren zum schleifen von axialen bohrungen und beidseitig zu bearbeitende plane aussenflächen aufweisenden werkstücken

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Publication number Priority date Publication date Assignee Title
US3990133A (en) * 1974-01-15 1976-11-09 Gildemeister Aktiengesellschaft Multi-station machine tool with pairs of tool-and work-spindles
CH636543A5 (fr) * 1980-07-16 1983-06-15 Tarex Sa Machine-outil comprenant deux broches coaxiales opposees.
DE3110674A1 (de) * 1981-03-19 1982-09-30 Heyligenstaedt & Co, Werkzeugmaschinenfabrik Gmbh, 6300 Giessen Drehmaschine zum gleichzeitigen bearbeiten von zwei werkstuecken
US4612832A (en) * 1984-04-27 1986-09-23 Kabushiki Kaisha Miyano Tekkosho Multiple-function machine tool with two spindles
DE3518792A1 (de) * 1985-05-24 1986-11-27 Traub Gmbh, 7313 Reichenbach Numerisch gesteuerte drehmaschine
DE3626324A1 (de) * 1986-08-02 1988-02-04 Pittler Ag Maschf Doppelspindel-drehmaschine
JPH01183301A (ja) * 1988-01-14 1989-07-21 Hiroshi Kishi 数値制御自動旋盤
US5163009A (en) * 1988-05-09 1992-11-10 Seibu Electric Machinery Co., Ltd. Method of machining cylindrical workpieces by using a bi-spindle numerically controlled machine tool
IT1231542B (it) * 1989-07-26 1991-12-17 Gildemeister Spa Macchina tornitrice con tre mandrini portapezzo
FR2659888A1 (fr) * 1990-03-26 1991-09-27 Esco Sa Machine d'usinage, notamment de decolletage.
DE4028030A1 (de) * 1990-09-04 1992-05-21 Berger Zoltan Mehrfach-werkzeughalter fuer eine werkzeugmaschine
JP3316003B2 (ja) * 1992-06-20 2002-08-19 スター精密株式会社 数値制御自動旋盤と数値制御自動旋盤による加工方法

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Title
See references of WO9632224A1 *

Also Published As

Publication number Publication date
DE19513963C2 (de) 1998-05-28
JPH10501758A (ja) 1998-02-17
WO1996032224A1 (fr) 1996-10-17
US5787560A (en) 1998-08-04
DE19513963A1 (de) 1996-10-17

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