EP0338224A2 - Dispositif de finissage des manetons de vilbrequins - Google Patents

Dispositif de finissage des manetons de vilbrequins Download PDF

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Publication number
EP0338224A2
EP0338224A2 EP89103836A EP89103836A EP0338224A2 EP 0338224 A2 EP0338224 A2 EP 0338224A2 EP 89103836 A EP89103836 A EP 89103836A EP 89103836 A EP89103836 A EP 89103836A EP 0338224 A2 EP0338224 A2 EP 0338224A2
Authority
EP
European Patent Office
Prior art keywords
shell
crank pin
tool
actuating cylinder
honing
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.)
Granted
Application number
EP89103836A
Other languages
German (de)
English (en)
Other versions
EP0338224A3 (en
EP0338224B1 (fr
Inventor
Gottfried Weber
Otto Gödderz
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.)
Ford Werke GmbH
Ford France SA
Ford Motor Company Ltd
Ford Motor Co
Original Assignee
Ford Werke GmbH
Ford France SA
Ford Motor Company Ltd
Ford Motor Co
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 Ford Werke GmbH, Ford France SA, Ford Motor Company Ltd, Ford Motor Co filed Critical Ford Werke GmbH
Publication of EP0338224A2 publication Critical patent/EP0338224A2/fr
Publication of EP0338224A3 publication Critical patent/EP0338224A3/de
Application granted granted Critical
Publication of EP0338224B1 publication Critical patent/EP0338224B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B5/00—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor
    • B24B5/36—Single-purpose machines or devices
    • B24B5/42—Single-purpose machines or devices for grinding crankshafts or crankpins
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/04—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces
    • B24B21/06—Machines or devices using grinding or polishing belts; Accessories therefor for grinding plane surfaces involving members with limited contact area pressing the belt against the work, e.g. shoes sweeping across the whole area to be ground
    • B24B21/08—Pressure shoes; Pressure members, e.g. backing belts

Definitions

  • the invention relates to a device for fine machining the crank pin of crankshafts of the type specified by the preamble of claim 1.
  • tools which comprise a bearing part which is designed to be dimensionally stable as a half-shell and which is connected to the respectively associated actuating cylinder in a rotationally movable manner and on which a plurality of support and guide shoes spaced apart from one another in the circumferential direction of the shell surface are preferably arranged made of plastic for a honing band.
  • the honing band is used to fine-tune the respectively assigned crank pin of a workpiece in order to increase the load-bearing component for the respective crankshaft bearing and also to round off the edges of lubricating oil holes already formed in pre-machined crank pins.
  • the object is achieved to design a device of the type specified in such a way that a further increase in the load share for the individual crankshaft bearings is obtained and thus the out-of-roundness that can still be determined in the previous fine machining in the microscopic range is eliminated as far as possible .
  • the advantages that can be achieved with the device according to the invention are primarily recognizable in its simple possibility of incorporation into the previous machining process of crankshafts as one of the previous output stage either upstream or downstream of the processing stage. Because the tools as a result of the resilient design or support of their bearing part have a "breathing" arrangement with respect to the associated crank pin of the workpieces, the guide of the tools, translated with the guide arms, is used by the two master shafts of the device for an optimally true-to-shape machining , with which all processing errors can be optimally eliminated by this device, which had to be determined after the final stage of the previous fine processing for the microscopic area of surface quality.
  • a device for fine machining the crank pins of crankshafts by means of non-rotating tools is formed according to a previously used embodiment with two master shafts, which are arranged axially parallel to the workpiece to be machined and one synchronized with the workpiece
  • the master shafts copy a number of tools that match the crank pins of the workpieces, whereby the tool guide is translated using guide arms, which are also carriers of actuating cylinders pressurized with pressure medium, with which the respectively assigned tool is one with respect to the assigned crank pin experienced radially adjustable storage. Finishing of the crank pins is conventionally carried out either with honing stones or with honing bands, which are thus pressed against the crank pins during processing by the actuating cylinders.
  • the drawing shows a cross section through a crank pin 1 of a crankshaft which is to be driven as a workpiece to be machined in accordance with the arrow 2 drawn in a clockwise direction in synchronism with the two master shafts (not shown) of the device.
  • a copy-guided guide arm 3 is connected to the two master shafts, on which an actuating cylinder 4 pressurized with pressure medium is arranged, with which a tool 5 provided for fine machining of the crank pin 1 can be pressed in the radial direction against the surface of the crank pin.
  • the pressure medium supply to the actuating cylinder 4 is conveyed via a functional part 6, flanged to the guide arm 3, of a hydraulic or pneumatic control device, the design of which is of interest only to the extent that an actuating force acting in the direction of arrow 8 is provided by supplying the pressure medium to a filling chamber 7 of the functional part 6 is provided for the actuating cylinder 4.
  • This actuating force acting in the direction of the arrow 8 is thus translated to the tool 5, which thus experiences one-sided contact with the guide arm 3 by the two master shafts on the crank pin 1.
  • the tool 5 is provided with a half-shell 9 which is designed to be resilient in relation to the actuating force of the actuating cylinder 4 and a base member connected to it in one piece per 10 made of spring steel.
  • the resilient design of the half-shell 9 is obtained by means of individual annular gaps 11 which, with a mutually overlapping design in the circumferential direction, run concentrically with the axis 12 of the half-shell 9 practically coinciding with the crank pin 1.
  • the otherwise solid base body 10 is divided into a corresponding plurality of mutually resiliently connected segments 13, which thus at three different radial distances from the axis of the half-shell, which are shown in the drawing for the individual annular gaps 11 effective radial spring direction for the tool 5 result.
  • the tool 5 is screwed by means of screws 14 to a tool holder 15 which is rotatably connected to the actuating cylinder 4 by means of a pin 16.
  • a tool holder 15 which is rotatably connected to the actuating cylinder 4 by means of a pin 16.
  • This relative mobility is also provided with respect to a honing belt 17 which is guided past the half-shell 9 for the fine machining of the crank pin 1 and is pressed against the crank pin 1 with the actuating force of the actuating cylinder 4 effective in the direction of arrow 8.
  • two ball guides 18 are also arranged on the guide arm 3, which favor the curvature, which is intended with the tool 5 for enclosing the crank pin 1 with an angle of approximately 150 °, for the honing belt 17 for the entire duration of a respective fine machining.
  • the pressing surface of the half-shell 9 which is relevant for the honing band should be finely ground.
  • the finishing is not carried out with a honing belt, but directly with the tool 5. This then for a direct investment in the assigned The crank pin 1 provided surface of the half-shell 9 would then only have to be coated with a hard material working as a honing tool, such as diamond, borazon or a ceramic material.
  • the "breathing" design of the tool 5, which is achieved with the resiliently connected segments 13, also favors machining of the respective associated crank pin, which is optimally true to shape to the master shafts, so that a correspondingly optimal supporting part for the individual crankshaft bearings is obtained for the entirety of the workpiece.
  • the elasticity of the half-shell 9 obtained with the dimensions of the segments 13 in relation to the dimensions of the annular gaps 11 can also be achieved with springs with which a half-shell then rigidly formed on the tool holder 15 or on the actuating cylinder 4 is supported.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
EP89103836A 1988-04-21 1989-03-04 Dispositif de finissage des manetons de vilbrequins Expired - Lifetime EP0338224B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3813484A DE3813484A1 (de) 1988-04-21 1988-04-21 Vorrichtung zur feinbearbeitung der hubzapfen von kurbelwellen
DE3813484 1988-04-21

Publications (3)

Publication Number Publication Date
EP0338224A2 true EP0338224A2 (fr) 1989-10-25
EP0338224A3 EP0338224A3 (en) 1990-08-22
EP0338224B1 EP0338224B1 (fr) 1993-05-19

Family

ID=6352581

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89103836A Expired - Lifetime EP0338224B1 (fr) 1988-04-21 1989-03-04 Dispositif de finissage des manetons de vilbrequins

Country Status (3)

Country Link
US (1) US4979335A (fr)
EP (1) EP0338224B1 (fr)
DE (2) DE3813484A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2702693A1 (fr) * 1993-03-18 1994-09-23 Procedes Machines Speciales Outillage pour l'application de toile abrasive sur une machine d'usinage par toilage de portées cylindriques sur des pièces.
EP0680806A1 (fr) * 1994-05-04 1995-11-08 Societe Des Procedes Machines Speciales Outillage pour le toilage de portées cylindriques avec contrôle de diamètre des portées
EP0781627A1 (fr) * 1995-12-28 1997-07-02 Supfina Grieshaber GmbH & Co. Machine de micro-finition
DE10332605A1 (de) * 2003-07-17 2005-02-17 Ibz Gmbh Anpressvorrichtung für eine Oberflächenbearbeitungsvorrichtung
DE102012019814A1 (de) 2012-10-10 2014-04-10 Hochschule Magdeburg-Stendal Vorrichtung zur Feinbearbeitung von konvexen Werkstückoberflächen

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69421722T2 (de) * 1994-02-09 2000-07-06 Barton Ii, Kenneth A. Verfahren und vorrichtung zur verbesserung der kegelform eines zylindrischen werkstückes
DE4444239C3 (de) * 1994-12-13 2003-05-08 Supfina Grieshaber Gmbh & Co Feinstbearbeitungsmaschine
DE19607821A1 (de) * 1996-03-01 1997-09-04 Nagel Masch Werkzeug Vorrichtung zur Finish-Bearbeitung, insbesondere von Kurbel- oder Nockenwellen
DE19619825A1 (de) * 1996-05-16 1997-11-20 Naxos Union Schleifmittel Vorrichtung zum Mikrofinishen von Kurbelwellen oder dergleichen Werkstücken
DE19714677C5 (de) 1997-04-09 2010-12-02 Boehringer Werkzeugmaschinen Gmbh Verfahren zur verwendungsfähigen Fertigbearbeitung von Rotationsteilen, insbesondere der Lagerstellen von Kurbelwellen
DE29819442U1 (de) 1998-10-31 1999-01-14 Nagel Maschinen- und Werkzeugfabrik GmbH, 72622 Nürtingen Vorrichtung zur Feinbearbeitung einer im wesentlichen zylindrischen Werkstückoberfläche
DE19850216A1 (de) * 1998-10-31 2000-05-04 Nagel Masch Werkzeug Verfahren und Vorrichtung zur Feinbearbeitung von im wesentlichen zylindrischen Werkstückoberflächen
US6363609B1 (en) 2000-10-20 2002-04-02 Short Block Technologies, Inc. Method and apparatus for aligning crankshaft sections
US6408663B1 (en) 2001-02-23 2002-06-25 Short Block Technologies, Inc. Method and apparatus for truing crankshafts
DE102007051047B4 (de) * 2007-10-16 2023-03-23 Nagel Maschinen- Und Werkzeugfabrik Gmbh Andrückeinrichtung für Finishband sowie Vorrichtung und Verfahren zur Finishbearbeitung von Umfangsflächen an zylindrischen Werkstückabschnitten
EP2327510B1 (fr) * 2009-11-25 2011-07-06 Supfina Grieshaber GmbH & Co. KG Dispositif de finition
EP2399706B9 (fr) 2010-06-22 2013-10-02 Supfina Grieshaber GmbH & Co. KG Dispositif de finissage pour le finissage de surfaces de pièces usinées
DE102015221939B4 (de) * 2015-11-09 2018-10-31 Supfina Grieshaber Gmbh & Co. Kg Finishbandvorrichtung und Verfahren zur finishenden Bearbeitung eines Werkstücks

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2060266A (en) * 1935-05-04 1936-11-10 Thompson Anders Body and fender finishing machine
US2083685A (en) * 1936-07-27 1937-06-15 Ray Edgar Falkinburg Grinding or polishing device
US2270522A (en) * 1940-01-27 1942-01-20 Gen Motors Corp Crankshaft bearing polishing machine
DE1158864B (de) * 1955-01-03 1963-12-05 Daimler Benz Ag Vorrichtung zum Feinziehschleifen von Wellen
US3537215A (en) * 1967-12-04 1970-11-03 Litton Industries Inc Precision rotary location of a crankshaft in an automatic crankpin grinding machine
JPS5226097A (en) * 1975-08-21 1977-02-26 Nisshin Daiyamondo Kk Supersonic dies grinder
DE2739257A1 (de) * 1977-08-31 1979-03-22 Wacker Chemitronic Vorrichtung und verfahren zum abtragenden bearbeiten von werkstuecken
DE3440350A1 (de) * 1984-11-05 1986-05-15 Maschinenbau Grieshaber GmbH, 7620 Wolfach Vorrichtung zur feinbearbeitung der lager einer kurbelwellle
DE8616462U1 (de) * 1986-06-20 1987-10-22 Maschinenbau Grieshaber Gmbh & Co, 7620 Wolfach Vorrichtung zur Feinbearbeitung von Kurbelwellenzapfen

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2702693A1 (fr) * 1993-03-18 1994-09-23 Procedes Machines Speciales Outillage pour l'application de toile abrasive sur une machine d'usinage par toilage de portées cylindriques sur des pièces.
EP0624431A1 (fr) * 1993-03-18 1994-11-17 Societe Des Procedes Machines Speciales Outillage pour l'application de toile abrasive sur une machine d'usinage par toilage de portées cylindriques sur des pièces
US5522762A (en) * 1993-03-18 1996-06-04 Societe Procedes Machines Speciales S.P.M.S. Tool for applying surface coated abrasives for use on a machine for abrasion machining of cylindrical surfaces on workpieces
EP0680806A1 (fr) * 1994-05-04 1995-11-08 Societe Des Procedes Machines Speciales Outillage pour le toilage de portées cylindriques avec contrôle de diamètre des portées
FR2719516A1 (fr) * 1994-05-04 1995-11-10 Procedes Machines Speciales Outillage pour le toilage de portées cylindriques avec contrôle de diamètre des portées.
US5651719A (en) * 1994-05-04 1997-07-29 Societe Procedes Machines Speciales S.P.M.S. Tooling for abrasive belt machining of cylindrical bearing surfaces with provision for monitoring bearing surface diameter
EP0781627A1 (fr) * 1995-12-28 1997-07-02 Supfina Grieshaber GmbH & Co. Machine de micro-finition
DE10332605A1 (de) * 2003-07-17 2005-02-17 Ibz Gmbh Anpressvorrichtung für eine Oberflächenbearbeitungsvorrichtung
DE10332605B4 (de) * 2003-07-17 2005-09-15 Ibz Gmbh Anpressvorrichtung für eine Oberflächenbearbeitungsvorrichtung
DE102012019814A1 (de) 2012-10-10 2014-04-10 Hochschule Magdeburg-Stendal Vorrichtung zur Feinbearbeitung von konvexen Werkstückoberflächen
DE102012019814B4 (de) * 2012-10-10 2014-11-06 Hochschule Magdeburg-Stendal Vorrichtung zur Feinbearbeitung von konvexen Werkstückoberflächen

Also Published As

Publication number Publication date
DE3813484A1 (de) 1989-11-02
DE3813484C2 (fr) 1991-08-01
EP0338224A3 (en) 1990-08-22
US4979335A (en) 1990-12-25
DE58904389D1 (de) 1993-06-24
EP0338224B1 (fr) 1993-05-19

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