WO2003057399A1 - Machine d'usinage par enlevement de copeaux de pieces allongees - Google Patents

Machine d'usinage par enlevement de copeaux de pieces allongees Download PDF

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Publication number
WO2003057399A1
WO2003057399A1 PCT/DE2003/000062 DE0300062W WO03057399A1 WO 2003057399 A1 WO2003057399 A1 WO 2003057399A1 DE 0300062 W DE0300062 W DE 0300062W WO 03057399 A1 WO03057399 A1 WO 03057399A1
Authority
WO
WIPO (PCT)
Prior art keywords
machining
tool
workpiece
longitudinal direction
machine bed
Prior art date
Application number
PCT/DE2003/000062
Other languages
German (de)
English (en)
Inventor
Joachim Uecker
Winfried Krüger
Stefan Beetz
Eckehard BLÄSCHE
Original Assignee
Pnp Automotive Gmbh
Burgsmüller 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 Pnp Automotive Gmbh, Burgsmüller GmbH filed Critical Pnp Automotive Gmbh
Publication of WO2003057399A1 publication Critical patent/WO2003057399A1/fr

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
    • B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
    • B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
    • B23Q3/06—Work-clamping means
    • B23Q3/08—Work-clamping means other than mechanically-actuated
    • B23Q3/084—Work-clamping means other than mechanically-actuated using adhesive means

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • Devices and methods for machining elongated workpieces are known in a variety of forms and are used in individual cases depending on the dimensions and type of the workpiece, the processing speed, the desired surface quality of the machined surfaces as well as their geometrical dimensional accuracy and other parameters.
  • An essential feature of, for example, the generally known whirling method which lends itself in this context, is a ring-like tool carrier equipped with cutting tools on the inner circumference, which surrounds the workpiece to be machined during machining, but is rotated eccentrically to its longitudinal axis, the workpiece simultaneously rotating in the same or opposite direction turns to the tool carrier.
  • the tool carrier can be arranged in a plane perpendicular to the longitudinal axis of the workpiece or at an angle to such a plane. Machining of such workpieces, which have a comparatively small diameter and are also to be regarded as very unbalanced, is only possible to a limited extent with this method or requires special measures to suppress vibrations. In addition, machining high-precision cylindrical fit seats would require reworking after whirling by grinding.
  • the workpiece is held or clamped non-rotatably during processing and at least one processing tool is provided, the feed movement of which is a circular movement about the axis of the ring-shaped tool carrier.
  • the feed movement of which is a circular movement about the axis of the ring-shaped tool carrier.
  • claims 2 to 4 are directed to the more detailed configuration of the tensioning device.
  • this consists of two vices that can be displaced on the machine bed in the longitudinal direction and can be fixed in discrete displacement positions and are arranged to dampen vibrations, at least one vise being designed as a self-centering prism vise. Due to the fact that the vices can be moved on both sides, there is an optimal adaptation even to elongated, vibration-sensitive workpieces with a very small diameter.
  • the clamping length can thus be selected taking into account the desired cutting speed and the mainly geometrical vibration tendency of the workpiece.
  • claims 5 to 6 are directed to the design of the cutting tool, in which essentially known embodiments can be used. In particular, this can also be a turning tool. In practice, the machining tool is selected depending on working parameters such as the material properties of the workpiece and the intended cutting speed.
  • claims 7 to 9 are directed to the concept of the feed movements of the processing tool.
  • a slide that can be moved in the longitudinal direction of the machine bed is provided, on which a cross slide is supported, which acts as a carrier of the processing assembly, so that - seen in a horizontal plane - there is a two-dimensional delivery option for the processing tool , A vertical adjustment option can be added, so that in any case a precise alignment of the Axis of the tool carrier on the one hand relative to the axis of the workpiece or the machining profile on the other hand is possible.
  • a delivery option in a horizontal plane perpendicular to the longitudinal direction of the machine bed can also be used in order to be able to remove the workpiece from the device at the end of the machining of a machining professional by slightly shifting the machining assembly laterally, in order to then either clamp a new workpiece or another machining surface of the same workpiece.
  • a control device which is at least connected to the motors of the device, which are used to move the tool and / or to advance the workpiece.
  • the control device is also operatively connected to measuring devices which are required, for example, to record lengths, angles of rotation, speeds and other measurement parameters which are to be regarded in the broadest sense as working parameters and to control and monitor the course of the machining process.
  • claims 10 to 12 are directed to the further configuration of the control device.
  • the aim is a comprehensive adjustability or controllability of all work parameters and a program-controlled workflow, so that largely automated work processes are possible. All working parameters are available visually, in particular, via the monitor of a control panel, it being possible to intervene in the machining process at any time via the input mechanism mentioned.
  • the device according to the invention there is therefore a working medium which is particularly suitable for machining cylindrical high-precision seats on extremely unbalanced workpieces, in which the workpiece is clamped in a vibration-damped manner, which is characterized by extremely short workpiece change times and, in particular when changing to different workpiece types, does not require any additional conversion measures.
  • the device is widely used adaptable with regard to their working parameters and all cutting materials required for hard machining can be used within the scope of the machining tool.
  • the device is suitable for workpieces made of highly tempered and hardened material. Added to this is the advantage of high cutting speeds, with a surface quality and geometrical dimensional accuracy that corresponds to that of grinding being achieved without reworking.
  • the device is particularly advantageous when there are particularly high demands on shape and position tolerances with two or more fit seats of a workpiece which are arranged in a row and which form the machining surfaces.
  • Fig. 1 a side view of the device according to the invention
  • Fig. 2 an end view of the device according to a viewing direction II of the
  • Fig. 1; 3 shows a plan view of the device in accordance with a viewing direction III of FIG. 1; 4: an isolated representation of the tool carrier in a front view; 5: a sectional view of the tool carrier corresponding to a sectional plane V-V of FIG. 4.
  • a threaded spindle 5 extending in the longitudinal direction of the machine bed 1 and rotatably mounted thereon is provided, which is in engagement with a spindle nut which is fixedly arranged in a receptacle 6 and is not shown in the drawing, the receptacle 6 being connected to the slide 3 ,
  • a motor 8 is provided which is fastened to the machine bed 1 and is in drive connection with the threaded spindle 6.
  • a vice that is displaceably arranged along the guide 7 and that can be fixed in selectable positions along the guide 7, which is preferably designed as a self-centering prism vice.
  • 10 is a further vice, also displaceable along the guide 7 and fixable in selectable positions.
  • Both vices are designed with the proviso that an elongated workpiece can be clamped in a vibration-damping manner in accordance with its longitudinal axis 11 and is held non-rotatably with respect to this axis during its processing.
  • this axis 11 corresponds to a clamping axis of the two vices 9, 10.
  • a cross slide is designated, which is slidably mounted on the slide 3, in the direction of the arrows 12, thus in a horizontal plane perpendicular to the direction of the arrows 4 defined by the longitudinal orientation of the machine bed 1.
  • the cross slide 12 is in this case in drive connection with a motor 13.
  • the cross slide 12 carries a processing assembly 14 which u. a. comprises a ring-like tool carrier 15 to be explained in more detail below.
  • the lower part of the machining assembly 14, which is adjacent to the cross slide 12, has a global ring-like design and extends coaxially to the axis 11 during the machining of a workpiece.
  • 16 denotes a motor which is in drive connection with the tool carrier 15 which is rotatably mounted on or in the machining assembly 14.
  • the motors 8, 13, 16 are connected to a higher-level control device which is arranged in a control cabinet 17.
  • 18 denotes a control panel, which comprises a monitor and an input mechanism and is fastened to the machine bed, for example, via a swivel arm 19.
  • Functional elements are not shown in the drawing, which serve in the broadest sense to record measured values such as distances, workpiece dimensions etc. and which, for example, B. Describe feed paths, angles of rotation, tool and workpiece positions, etc. In any case, all the essential machining and workpiece parameters are visually available to the respective operator of the device on the monitor of the control panel 18.
  • the basic structure of the tool carrier 15 is shown in FIGS. 4 and 5, with a graphic representation of drive elements by means of which it can be rotated about its axis 11 'being dispensed with.
  • the tool carrier 15 is set up as a rotationally symmetrical body, which is mounted in the machining assembly 14 and surrounds the workpiece 20 during machining.
  • a machining tool is designated, which protrudes from the inner circumferential side of the tool carrier 15 and extends within its plane. Incidentally, it is arranged radially, thus adjustable in the direction of the arrows 22, within the structure of the tool carrier 15, specifically in accordance with the desired machining of the workpiece 20.
  • the processing tool 21 can in principle be of any design.
  • it can be a conventional turning tool.
  • a machining tool with an interchangeable cutting body, for example made of hard metal, in the form of an indexable insert can also be considered.
  • the workpiece 20 is held non-rotatably in the vices 9, 10 during the machining, the machining group 14 being in one is such position relative to the section of the workpiece 20 to be machined that the axis ll'd of the tool carrier 15 extends coaxially to the axis of the section of the workpiece to be machined.
  • the machining of the surface of the workpiece takes place with rotation of the tool carrier 15 and simultaneous feed in the longitudinal direction of the workpiece 20, which is brought about by appropriate actuation of the slide 3.
  • the device for machining cylindrical high-precision seats on workpieces 20 which are to be regarded as extremely unbalanced is intended.
  • the device enables machining in accordance with an accuracy sufficient for a fit profile and with a surface quality that is equivalent to that of grinding.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Auxiliary Devices For Machine Tools (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)

Abstract

Machine d'usinage par enlèvement de copeaux, en particulier de pièces allongées (20), qui comporte un bloc d'usinage (14) pouvant être déplacé par moteur sur un socle (1) de machine dans le sens longitudinal (4) dudit socle, ainsi qu'un dispositif de serrage pour la pièce (20). Ladite machine est caractérisée en ce que le dispositif de serrage est conçu pour serrer la pièce (20) de manière que cette dernière ne puisse pas effectuer un mouvement de rotation, et en ce qu'un porte-outil (15) annulaire, rotatif autour de son axe (11') et équipé sur sa face périphérique interne d'au moins un outil d'usinage (21) est monté sur le bloc d'usinage (14), ledit porte-outil se trouvant en liaison d'entraînement avec un moteur (16).
PCT/DE2003/000062 2002-01-11 2003-01-10 Machine d'usinage par enlevement de copeaux de pieces allongees WO2003057399A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20200450U DE20200450U1 (de) 2002-01-11 2002-01-11 Vorrichtung zum zerspanenden Bearbeiten langgestreckter Werkstücke
DE20200450.3 2002-01-11

Publications (1)

Publication Number Publication Date
WO2003057399A1 true WO2003057399A1 (fr) 2003-07-17

Family

ID=7966517

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2003/000062 WO2003057399A1 (fr) 2002-01-11 2003-01-10 Machine d'usinage par enlevement de copeaux de pieces allongees

Country Status (2)

Country Link
DE (1) DE20200450U1 (fr)
WO (1) WO2003057399A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104057109A (zh) * 2014-06-19 2014-09-24 哈尔滨东安发动机（集团）有限公司 刀架

Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742746A (en) * 1952-04-16 1956-04-24 Joseph A Sills Apparatus for grinding and refinishing crankpins
US3808745A (en) * 1971-01-04 1974-05-07 Tos Hostivar Np Machine tool for heavy counter-balanced crankshafts
DE2363659A1 (de) * 1973-12-20 1975-07-03 Boehringer Gmbh Geb Maschine zum durchtrennen eines stangenfoermigen werkstuecks
US4494280A (en) * 1981-08-18 1985-01-22 Gfm Gesellschaft Fur Fertigungstechnik Und Maschinenbau Gesellschaft M.B.H. Method and machine tool for a circular machining of eccentric shaft portions
AT385226B (de) * 1986-06-12 1988-03-10 Kickuth Klaus Werkzeugmaschine zur herstellung von gewindespindeln od. dgl.
FR2603824A1 (fr) * 1986-09-16 1988-03-18 Menissier Pierre Systeme de serrage automatiquement adapte aux pieces a usiner sur machine outil travaillant avec des outils tournant suivant une trajectoire satellite auxdites pieces
DE8814248U1 (de) * 1988-11-14 1989-01-12 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur Oberflächenbearbeitung von zylindrischen Bauteilen, insbesondere von Turbinen- und Generatorwellen
US4829860A (en) * 1987-04-03 1989-05-16 Tri Tool Inc. Segmented sliding bearing arrangement for portable lathe
DE9313037U1 (de) * 1993-08-31 1993-11-11 Weinhöfer, Willi, 90542 Eckental Vorrichtung zum Wirbeln bzw. Schälen von Außengewinde, Schnecken und Profilen
US5341603A (en) * 1992-07-10 1994-08-30 General Electric Company External hone
US5660093A (en) * 1996-01-22 1997-08-26 Ricci; Donato L. Portable journal turning lathe
US5829930A (en) * 1995-11-13 1998-11-03 Komatsu Machinery Corporation Arrangement for preventing chip from flying about in crankshaft miller
US6149502A (en) * 1996-11-21 2000-11-21 Komatsu Machinery Corp. Crankshaft machining method
DE19929712A1 (de) * 1999-06-24 2000-12-28 Siemens Ag Verfahren und Zustelleinrichtung zur Realisierung der Vorschubbewegung mindestens eines um ein rotationssymmetrisches Bauteil umlaufenden Werkzeugsupports

Patent Citations (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742746A (en) * 1952-04-16 1956-04-24 Joseph A Sills Apparatus for grinding and refinishing crankpins
US3808745A (en) * 1971-01-04 1974-05-07 Tos Hostivar Np Machine tool for heavy counter-balanced crankshafts
DE2363659A1 (de) * 1973-12-20 1975-07-03 Boehringer Gmbh Geb Maschine zum durchtrennen eines stangenfoermigen werkstuecks
US4494280A (en) * 1981-08-18 1985-01-22 Gfm Gesellschaft Fur Fertigungstechnik Und Maschinenbau Gesellschaft M.B.H. Method and machine tool for a circular machining of eccentric shaft portions
AT385226B (de) * 1986-06-12 1988-03-10 Kickuth Klaus Werkzeugmaschine zur herstellung von gewindespindeln od. dgl.
FR2603824A1 (fr) * 1986-09-16 1988-03-18 Menissier Pierre Systeme de serrage automatiquement adapte aux pieces a usiner sur machine outil travaillant avec des outils tournant suivant une trajectoire satellite auxdites pieces
US4829860A (en) * 1987-04-03 1989-05-16 Tri Tool Inc. Segmented sliding bearing arrangement for portable lathe
DE8814248U1 (de) * 1988-11-14 1989-01-12 Siemens AG, 1000 Berlin und 8000 München Vorrichtung zur Oberflächenbearbeitung von zylindrischen Bauteilen, insbesondere von Turbinen- und Generatorwellen
US5341603A (en) * 1992-07-10 1994-08-30 General Electric Company External hone
DE9313037U1 (de) * 1993-08-31 1993-11-11 Weinhöfer, Willi, 90542 Eckental Vorrichtung zum Wirbeln bzw. Schälen von Außengewinde, Schnecken und Profilen
US5829930A (en) * 1995-11-13 1998-11-03 Komatsu Machinery Corporation Arrangement for preventing chip from flying about in crankshaft miller
US5660093A (en) * 1996-01-22 1997-08-26 Ricci; Donato L. Portable journal turning lathe
US6149502A (en) * 1996-11-21 2000-11-21 Komatsu Machinery Corp. Crankshaft machining method
DE19929712A1 (de) * 1999-06-24 2000-12-28 Siemens Ag Verfahren und Zustelleinrichtung zur Realisierung der Vorschubbewegung mindestens eines um ein rotationssymmetrisches Bauteil umlaufenden Werkzeugsupports

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104057109A (zh) * 2014-06-19 2014-09-24 哈尔滨东安发动机（集团）有限公司 刀架

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Publication number Publication date
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