EP0642397A1 - Tour a deux broches porte-pieces - Google Patents

Tour a deux broches porte-pieces

Info

Publication number
EP0642397A1
EP0642397A1 EP94909101A EP94909101A EP0642397A1 EP 0642397 A1 EP0642397 A1 EP 0642397A1 EP 94909101 A EP94909101 A EP 94909101A EP 94909101 A EP94909101 A EP 94909101A EP 0642397 A1 EP0642397 A1 EP 0642397A1
Authority
EP
European Patent Office
Prior art keywords
spindle
workpiece
spindles
workpieces
guides
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Withdrawn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
EP94909101A
Other languages
German (de)
English (en)
Inventor
Frank Baumbusch
Egon Strathmeier
Frank Kieselbach
Bodo Haupt
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.)
PCC Pittler Maschinenfabrik GmbH
Original Assignee
PITTLER 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 PITTLER GmbH filed Critical PITTLER GmbH
Publication of EP0642397A1 publication Critical patent/EP0642397A1/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Withdrawn legal-status Critical Current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

Definitions

  • the invention relates to a lathe with two workpiece spindles, which are each rotatably mounted in a headstock and are displaceable in or with the latter in the direction of the spindle axis, with their workpiece clamping devices pointing towards one another and the headstock on one each transverse to Guide extending on the spindle axis on a machine bed can be moved between a working position, in which, in cooperation with a tool carrier, a turning of workpieces takes place, and a transfer position, in which workpieces can be transferred directly from one workpiece spindle to the other, in alignment.
  • DE-A-38 03 219 also provides two faced workpiece spindle units to be aligned coaxially for workpiece transfer, which, like the associated tool supports, can only be moved in one axial direction. However, the one workpiece spindle unit in the X direction and the
  • a production line with a large number of parallel, but oppositely aligned workpiece spindle units is described in DE-A-33 37 198.
  • the movements required for machining are carried out by the tools.
  • After finishing the machining on a spindle it moves on a longitudinal guide to a transfer position, in which it is aligned with the directly opposite next spindle.
  • the workpiece is then transferred to the next spindle in its working position by means of axial spindle displacement after the tools interacting with it have been moved away.
  • this spindle can also be moved on a longitudinal guide into a transfer position, in which it is aligned with another spindle in its working position and the workpiece is transferred directly by axial spindle displacement, etc. Via the feed and The feeding of the raw parts as well as the delivery of the finished parts says nothing. The task obviously takes place in the machining position of the first spindle. Overall, this arrangement results in the disadvantages of a large number of precisely controllable drives for the spindles, the tool carriers and the feed and discharge devices, the necessary distance between the working positions of the spindles and, consequently, the poor observation and accessibility and the necessity ⁇ Diger covers and guards for the guides for the tool holder in the work area.
  • the invention has for its object to provide a lathe of the type mentioned, which, measured on
  • ERSAT2BL ⁇ TT (REGEL26) their working capacity, has a very simple structure and ensures good observation and accessibility of the spindles in the work area.
  • the workpiece spindles interact with a stationary tool during the turning of a workpiece by moving on the guides and axial displacement and the work areas in which the workpiece spindles travel on the longitudinal guides during turning are bar, are arranged substantially directly opposite one another.
  • the invention offers the advantage that the immediately adjacent working areas can be easily observed, as in a two-spindle front lathe, and are easily accessible on the front of a machine.
  • the chips accumulate at the same point and can be easily removed from the free area between the two spindles.
  • the new lathe has the advantage that you only need one guide and one drive for the movement in the X and Z directions for each spindle, but no guides and no traversing drive for the tool holder and no turning device to turn the rotating parts on both sides to edit. Since the guides for the spindles or the spindle boxes can be arranged behind a partition outside the work area and the tool carriers are fixed during the machining, no complex movable covers with endangered seals and joints for covering guides are required.
  • the advantage that, despite the few guides and drives, no turning device is necessary, is also compared to the machine described in the earlier patent application P 41 36 916.5.
  • the advantage of the proposed lathe can be increased in a preferred embodiment of the invention in that the headstock can be moved from the work areas on the guides beyond the transfer position into a loading or unloading position in which they can be machined workpieces pick up a feeder or transfer machined workpieces to a conveyor.
  • the movements required for receiving or delivering are preferably carried out in turn by the spindles, so that simple roller or slideways are sufficient as conveying devices, on which the parts roll or slip or slide into a certain position in front of a spindle in the loading position by gravity which the finished parts are transported by gravity after unloading by a spindle in the unloading position.
  • the raw parts can also be taken over by a spindle in the transfer position of the spindles and the finished parts can be transferred from a spindle to a further transport device in the same or a different position.
  • the guides normally do only have to be a little longer than if the loading and unloading take place in the transfer position.
  • the length of the work areas measured along the guides and the intermediate distances on the one hand between them and the transfer position, and on the other hand between the latter and the loading or unloading position only need to be somewhat larger than the diameter of the largest to be machined. the workpieces.
  • the machine shown as an exemplary embodiment has a bed 10, which extends backwards from the operating or front side, with two parallel longitudinal guides 12, 14 which are arranged on the upper side at an intermediate distance and which extend from the front to the rear. Between the longitudinal guides 12, 14 the machine bed 10 forms a shaft, on the bottom of which a chip conveyor 16 is arranged for the removal of the turnings.
  • a cross slide 18 and 20 is guided on each longitudinal guide 12, 14, each having a guide 22 on the upper side which extends transversely to the longitudinal guides 12, 14.
  • a first headstock 24 is slidably mounted on the guide 22 of the cross slide 18 on the left with reference to the drawing.
  • a second headstock 26 is seated on the right cross slide 20.
  • a workpiece spindle 28 or 30 is rotatably mounted in each of the two headstock 24, 26.
  • the two workpiece spindle units 24, 28 and 26, 30 can - but need not - be the same.
  • the basic structure of such workpiece spindle units, as shown in the drawing, is, for. B.
  • the workpiece spindles 28, 30 each have a workpiece clamping device in the form of a chuck in a known manner. The workpieces thus captured are set in rotation by the workpiece spindles 28, 30 during processing.
  • two tool carriers 32, 34 are arranged in a stationary manner.
  • the tools 36, 38 inserted into them are fixed during a machining process. Since the tool carriers 32, 34 are rotary turrets in the example, it is possible to change the tools on the side of the tool carrier that is not in use during ongoing machining.
  • the headstock 24, 26 can sit firmly on the slide 18 or 20 if, instead of the guided movement on the transverse guides 22, controlled axial displacement of the spindles 28, 30 in the respective headstock 24 or 26 in the direction of the entered one Z axis is provided.
  • Both slides 18, 20 are on the longitudinal guides 12 and 14 away from the tool carriers 32 and 34, respectively.
  • H. Can be moved in the X direction into a transfer position indicated at 40, in which the axes of the spindles 28, 30 are aligned.
  • a roller or slideway 44 is guided obliquely from above.
  • the raw parts 46 which are fed in an upright position, as shown, reach a separating device 47 into a
  • SPARE BLADE (RULE 26) Spindle axis in the loading position 42 concentric position in which they can be gripped and clamped by the clamping device of the workpiece spindle 28.
  • an unloading position 48 of the spindle 30 directly opposite the loading position 42.
  • a rolling or slideway 50 which slopes obliquely downwards and backwards, begins there, onto which the spindle 30 is finished by loosening the chuck Parts 52 unloads so that they are removed as a result of gravity.
  • the spindle 28 is moved along the guide 12 all the way to the rear in the loading position 42 and takes over a blank 46 using its axial displaceability.
  • the carriage 18 then moves forward again on the longitudinal guide 12 into the work area, where the Mobility of the spindle 28 in the X and Z directions in cooperation with one or more tools 36 of the tool carrier 32, the machining of the blank 46 takes place in the first clamping.
  • the carriage 18 then moves backwards into the transfer position 40, which is located at a short distance behind the work area in which the spindles 28 and 30 move during the turning operation.
  • the right spindle 30 also moves by means of the slide 20 into the transfer position 40, where both spindle axes are aligned.
  • the workpiece machined on one side can now be transferred directly from the spindle 28 to the spindle 30 using the axial displaceability of the spindle boxes 24 and / or 26 or the spindles 28 and / or 30. Thereafter, the spindle 28 moves back to the loading position 42 and fetches a new blank 46 there, while the spindle 30 with the partially machined th workpiece moves forward into the work area, where, taking advantage of the displaceability of the workpiece spindle 30 in the X and Z directions in cooperation with one or more of the tools 38 of the tool carrier 34, the machining of the already partially machined workpiece continues in the second clamping becomes.
  • the slide 20 then moves the spindle 30 all the way back to the unloading position 48, where the finished part 52 is loaded onto the further roller or slideway 50 after the spindle 30 has been loosened, taking advantage of the axial displaceability of the spindle 30.
  • the spindle 30 is transferred to the next partially machined workpiece in the transfer position 40, and then the described work, transport and transfer processes are repeated.

Landscapes

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

Abstract

Un tour comprend deux broches porte-pièces (28, 30) montées rotatives chacune dans une poupée fixe (24, 26) et mobiles avec celle-ci dans la direction de l'axe de la broche ainsi que transversalement par rapport à celui-ci. Les dispositifs de serrage de la pièce (28, 30) montés sur la broche sont mutuellement opposés. Des porte-outils (32, 34) sont montés stationnaires sur le côté frontal du tour. Les pièces (46) sont usinées dans une zone antérieure d'usinage uniquement par les déplacements des broches (28, 30) dans les directions X et Z, en coopération avec les porte-outils (32, 34). En position de transfert, plus en arrière sur les guidages (12, 14), les pièces sont directement transférées d'une broche (28) à l'autre, c'est-à-dire sans dispositifs inverseurs. Encore plus en arrière, elles sont prises en charge par un dispositif convoyeur (44) ou sont transférées à un dispositif convoyeur (50).
EP94909101A 1993-03-27 1994-03-02 Tour a deux broches porte-pieces Withdrawn EP0642397A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4310038 1993-03-27
DE19934310038 DE4310038C2 (de) 1993-03-27 1993-03-27 Drehmaschine mit zwei Werkstückspindeln
PCT/EP1994/000603 WO1994022639A1 (fr) 1993-03-27 1994-03-02 Tour a deux broches porte-pieces

Publications (1)

Publication Number Publication Date
EP0642397A1 true EP0642397A1 (fr) 1995-03-15

Family

ID=6484048

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94909101A Withdrawn EP0642397A1 (fr) 1993-03-27 1994-03-02 Tour a deux broches porte-pieces

Country Status (3)

Country Link
EP (1) EP0642397A1 (fr)
DE (1) DE4310038C2 (fr)
WO (1) WO1994022639A1 (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19514058C2 (de) * 1995-04-13 1998-04-30 Emag Masch Vertriebs Serv Gmbh Drehmaschine mit mehreren Spindeln
EP0839600B1 (fr) * 1996-10-04 1999-10-20 ILG GmbH Machine-outil
DE19753898A1 (de) * 1997-12-05 1999-06-17 Hueller Hille Gmbh Vertikal-Drehmaschine mit zwei oder mehr Spindeln
EP1155764B1 (fr) * 1999-10-28 2007-12-12 Nakamura-Tome Precision Ind. Co., Ltd. Tour combine a commande numerique
DE10104181A1 (de) * 2001-01-23 2002-08-01 Index Werke Kg Hahn & Tessky Drehmaschine
DE10129342A1 (de) * 2001-06-19 2003-01-02 Ex Cell O Gmbh Werkzeugmaschine
DE10140940B4 (de) * 2001-08-21 2005-04-07 Gildemeister Drehmaschinen Gmbh Drehmaschine
DE102006026183A1 (de) * 2006-05-30 2007-12-06 Index-Werke Gmbh & Co. Kg Hahn & Tessky Drehbearbeitungszentrum
JP5372320B2 (ja) 2006-08-04 2013-12-18 シチズンホールディングス株式会社 ワーク加工機の制御プログラム及びこの制御プログラムを実行するワーク加工機の制御装置
DE102007045591A1 (de) * 2007-09-14 2009-03-26 Carl Benzinger Gmbh Bearbeitungsmaschine zur Bearbeitung von Werkstücken
CN108480659B (zh) * 2018-04-03 2019-08-20 台州屹捷数控机床股份有限公司 双头车床
CN113910003B (zh) * 2021-10-25 2023-02-10 宁波锦华数控机床有限公司 双主轴双y轴复合数控机床
CN113910002B (zh) * 2021-10-25 2023-04-18 宁波锦华数控机床有限公司 双主轴双y轴复合数控机床的加工方法
CN116117906A (zh) 2021-11-12 2023-05-16 施耐德两合公司 用于光学工件的加工设备以及双夹持器的用途
DE102022000537A1 (de) 2021-11-12 2023-05-17 Schneider Gmbh & Co. Kg Bearbeitungsvorrichtung für optische Werkstücke sowie Verwendung eines Doppelgreifers

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2602703A1 (fr) * 1986-07-28 1988-02-19 Baudier Marcel Tour frontal a commande numerique avec poupee porte-broche mobile assurant les deplacements dans le sens perpendiculaire a l'axe de la broche
JPS63156601A (ja) * 1986-12-22 1988-06-29 Matsuo Sangyo Kk 自動工作機
JPH01228701A (ja) * 1988-03-10 1989-09-12 Tsugami Corp 工作機械
SU1646684A1 (ru) * 1989-05-29 1991-05-07 Предприятие П/Я Ю-9477 Токарный многоцелевой станок с ЧПУ
JP2767002B2 (ja) * 1990-05-16 1998-06-18 相生精機株式会社 両面機械加工装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9422639A1 *

Also Published As

Publication number Publication date
WO1994022639A1 (fr) 1994-10-13
DE4310038A1 (de) 1994-09-29
DE4310038C2 (de) 1995-04-27

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