EP0882549A1 - Bandschleifmaschine für zylindrische Lagerflächen von Wellen - Google Patents

Bandschleifmaschine für zylindrische Lagerflächen von Wellen Download PDF

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Publication number
EP0882549A1
EP0882549A1 EP98401317A EP98401317A EP0882549A1 EP 0882549 A1 EP0882549 A1 EP 0882549A1 EP 98401317 A EP98401317 A EP 98401317A EP 98401317 A EP98401317 A EP 98401317A EP 0882549 A1 EP0882549 A1 EP 0882549A1
Authority
EP
European Patent Office
Prior art keywords
jaws
arms
concave
diameter
positions
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Withdrawn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
EP98401317A
Other languages
English (en)
French (fr)
Inventor
Gabriel C/O S.P.M.S. Chenu
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.)
Procedes Machines Speciales S P M S Ste
Original Assignee
Procedes Machines Speciales S P M S Ste
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 Procedes Machines Speciales S P M S Ste filed Critical Procedes Machines Speciales S P M S Ste
Publication of EP0882549A1 publication Critical patent/EP0882549A1/de
Withdrawn legal-status Critical Current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
    • B24B21/00—Machines or devices using grinding or polishing belts; Accessories therefor
    • B24B21/004—Machines or devices using grinding or polishing belts; Accessories therefor using abrasive rolled strips
    • 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

Definitions

  • the present invention relates to a machining machine by abrasive belt of cylindrical bearings of shafts, in particular of journals camshafts or journals and / or crankshaft crankpins.
  • Known machines of this type include, for machining of each bearing of the shaft which is rotated around its axis during machining, two arms pivotally mounted in a plane on the same support. Two opposite jaws are mounted on said arms and each have a concave shaped application surface of cylinder segment with a diameter corresponding to the diameter of the worn to machine. Guiding means are provided for passing the abrasive strip facing the application surfaces of the two jaws. Arm operating means make it possible to apply the abrasive belt by the concave surfaces of the jaws in opposition against the surface to be machined.
  • crankshafts of different models or engine types have the same length, the same number of pins and the same number of crankpins, but differ for example by different diameters of the journals and / or crank pins.
  • the abrasive belt machining of these or crankshafts requires either a machine reserved for crankshafts of each type or model of engine, i.e. stopping the machine and change of the jaws with each passage of a crankshaft of a type or model to another. The same problem arises when machining camshaft journals.
  • the present invention specifically relates to a machining machine allowing this result to be obtained in a simple manner, provided minimum additional cost.
  • At least first and second application surfaces concaves of different diameters are mounted in opposition in the minus two different positions on the arms so that the band abrasive passes opposite the concave surfaces of the two jaws.
  • the support is movable between at least two positions such as in one from said positions the first concave surfaces of a first diameter can apply the abrasive strip against a diameter span corresponding to a first tree and that in the other of said positions, the second concave surfaces of a second diameter can apply the abrasive belt against a bearing of corresponding diameter of a second tree.
  • the jaws mounted on the arms can be either multiple jaws each presenting at at least two concave application surfaces of different diameters, either single jaws, in which case at least two simple jaws having concave surfaces of different diameters are mounted in different positions on each arm.
  • the abrasive belt machine as illustrated by the drawings constitute for example a machine for superfinishing spans cylindrical of shafts, in particular of camshaft trunnions or crank pins and / or crankshaft journals.
  • Each arm 1 door, at its free lower end, on its inner side, facing the opposite arm, a double jaw 5 comprising two concave surfaces 6a, 6b in the form of cylinder segments of which the parallel axes are spaced from each other along the length of the arm 1.
  • the support 2 common to the two arms 1 is vertically movable under the action of a fluid cylinder 7 whose stroke is defined by so as to bring the choice of application surfaces 6a or 6b of the two jaws 5 on either side of the bearing 8 to be machined from the shaft which can be held between centers and rotated around of its axis, as is well known in the field of machining by abrasive bearing of trees.
  • the concave surfaces 6a of the two jaws 5 have a radius of curvature corresponding to the radius of curvature of a first bearing 8a and illustrated in FIGS. 1 to 3 and the concave surfaces 6b jaws 5 corresponding to the radius of a second bearing 8b illustrated in Figures 5 to 7, the two rays being different.
  • the radius of curvature of surfaces 6a (therefore the radius of the range 8a) is greater than the radius of the surfaces 6b (therefore the radius of litter 8b).
  • An abrasive belt 9 is in a manner known per se advanced, between two successive machining cycles, of a reserve coil 10 on a winding reel 11 being guided at the level of the jaws 5 so as to pass opposite the two concave surfaces 6a, 6b of each jaw 5.
  • the support 2, the arms 1 and the jaws 5 are in the low position, position in which the surfaces concaves 6a of the jaws 5 are located on either side of a span 8a to be machined, bearing whose radius corresponds to the radius of curvature surfaces 6a.
  • the concave surfaces 6a of the jaws 5 apply the strip abrasive 9 against the bearing 8a.
  • the jaws 5 are in the high position, position in which the concave surfaces 6b jaws 5 are located on either side of a span 8b whose radius corresponds to the radius of curvature of surfaces 6b, so that when tightening the jaws 5, the concave surfaces 6b of the jaws 5 apply the abrasive band 9 against the surface 8b.
  • each jaw 5 is defined not not directly by the metal jaw 5, but by a gasket in coating 12 made of a more flexible material, for example polyurethane, which is attached to the jaw 5 to allow distribution smoother application pressure 9 against the surface to be machined.
  • a gasket in coating 12 made of a more flexible material, for example polyurethane, which is attached to the jaw 5 to allow distribution smoother application pressure 9 against the surface to be machined.
  • the number of concave surfaces for applying abrasive tape of different spokes carried by each arm 1 could be greater at 2, the jack 7 allowing in this case to bring the jaws 5 in more than two different positions, which would allow machining, on the same machine, more than two spans of different diameters.
  • each jaw 5 instead of being a multiple jaw, in this case a jaw double with two concave application surfaces of different spokes, could be composed of two simple jaws 5a, 5b each having an application surface, the two jaws 5a and 5b of each arm 1 having concave surfaces of spokes and being mounted in different positions on the arm 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
EP98401317A 1997-06-06 1998-06-02 Bandschleifmaschine für zylindrische Lagerflächen von Wellen Withdrawn EP0882549A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9707043 1997-06-06
FR9707043A FR2764224B1 (fr) 1997-06-06 1997-06-06 Machine d'usinage par bande abrasive de portees cylindriques d'arbres

Publications (1)

Publication Number Publication Date
EP0882549A1 true EP0882549A1 (de) 1998-12-09

Family

ID=9507701

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98401317A Withdrawn EP0882549A1 (de) 1997-06-06 1998-06-02 Bandschleifmaschine für zylindrische Lagerflächen von Wellen

Country Status (3)

Country Link
US (1) US6095909A (de)
EP (1) EP0882549A1 (de)
FR (1) FR2764224B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008053505A1 (en) * 2006-10-30 2008-05-08 Stefano Pugliese A unit for smoothing railway rails
CN102922394A (zh) * 2012-11-09 2013-02-13 浙江太阳股份有限公司 一种曲轴抛光装置
EP2674248A1 (de) * 2012-06-15 2013-12-18 Supfina Grieshaber GmbH & Co. KG Finishvorrichtung
CN115741378A (zh) * 2022-11-21 2023-03-07 南通众兴磁业有限公司 一种用于锰锌铁氧体磁芯加工的高精度打磨车床

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004114164A (ja) * 2002-09-24 2004-04-15 Nihon Micro Coating Co Ltd 基板の表面平滑化装置および方法
DE50301626D1 (de) * 2003-08-15 2005-12-15 Supfina Grieshaber Gmbh & Co Werkzeug zur Feinstbearbeitung
JP2009119548A (ja) * 2007-11-14 2009-06-04 Honda Motor Co Ltd 軸部仕上げ加工装置
EP2617523B1 (de) * 2012-01-23 2014-04-23 Supfina Grieshaber GmbH & Co. KG Finishvorrichtung zur finishenden Bearbeitung eines Werkstücks
DE202014102403U1 (de) * 2014-05-22 2014-06-06 Thielenhaus Technologies Gmbh Andrückeinrichtung mit einem Zahnriemen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8815174U1 (de) * 1988-12-06 1990-02-15 Maschinenbau Grieshaber Gmbh & Co, 7620 Wolfach Vorrichtung für die Bearbeitung von Werkstückoberflächen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS538603A (en) * 1976-07-13 1978-01-26 Kao Corp Equipment for polishing side surface of molded soap
DE4426923A1 (de) * 1994-07-29 1996-02-01 Grieshaber Masch Vorrichtung zur Oberflächenbearbeitung von Werkstücken
DE19526863C2 (de) * 1995-07-22 1997-06-12 Ae Goetze Gmbh Verfahren zur Feinbearbeitung der Außenumfangsfläche von geschlitzten, radial nach außen spannenden, ringförmigen Werkstücken, insbesondere von zu einem Paket zusammengefaßten Kolbenringen sowie Vorrichtung zur Durchführung des Verfahrens
JP3661712B2 (ja) * 1995-11-13 2005-06-22 トヨタ自動車株式会社 ラップ加工装置
US5775974A (en) * 1996-12-10 1998-07-07 K-Line Industries, Inc. Universal jaw attachment for microfinishing machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8815174U1 (de) * 1988-12-06 1990-02-15 Maschinenbau Grieshaber Gmbh & Co, 7620 Wolfach Vorrichtung für die Bearbeitung von Werkstückoberflächen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008053505A1 (en) * 2006-10-30 2008-05-08 Stefano Pugliese A unit for smoothing railway rails
EP2674248A1 (de) * 2012-06-15 2013-12-18 Supfina Grieshaber GmbH & Co. KG Finishvorrichtung
CN102922394A (zh) * 2012-11-09 2013-02-13 浙江太阳股份有限公司 一种曲轴抛光装置
CN115741378A (zh) * 2022-11-21 2023-03-07 南通众兴磁业有限公司 一种用于锰锌铁氧体磁芯加工的高精度打磨车床
CN115741378B (zh) * 2022-11-21 2024-01-09 南通众兴磁业有限公司 一种用于锰锌铁氧体磁芯加工的高精度打磨车床

Also Published As

Publication number Publication date
US6095909A (en) 2000-08-01
FR2764224A1 (fr) 1998-12-11
FR2764224B1 (fr) 1999-08-27

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