EP1264662B1 - Vorrichtung zum Schleifen von einer Rotationsfläche mit einem Polierband, insbesondere zum Innen-Feinstbearbeiten von einer zylindrischen Oberfläche - Google Patents

Vorrichtung zum Schleifen von einer Rotationsfläche mit einem Polierband, insbesondere zum Innen-Feinstbearbeiten von einer zylindrischen Oberfläche Download PDF

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Publication number
EP1264662B1
EP1264662B1 EP02291351A EP02291351A EP1264662B1 EP 1264662 B1 EP1264662 B1 EP 1264662B1 EP 02291351 A EP02291351 A EP 02291351A EP 02291351 A EP02291351 A EP 02291351A EP 1264662 B1 EP1264662 B1 EP 1264662B1
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EP
European Patent Office
Prior art keywords
abrasive belt
support
rods
axis
distal end
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.)
Expired - Lifetime
Application number
EP02291351A
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English (en)
French (fr)
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EP1264662A1 (de
Inventor
Richard Bonachera
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PROCEDES MACHINES SPECIALES Ste
Original Assignee
Procedes Machines Speciales S P M S Ste
Procedes et Machines Speciales Ste
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Publication of EP1264662B1 publication Critical patent/EP1264662B1/de
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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
    • B24B5/02—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work
    • B24B5/06—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor involving centres or chucks for holding work for grinding cylindrical surfaces internally
    • 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
    • B24B21/02—Machines or devices using grinding or polishing belts; Accessories therefor for grinding rotationally symmetrical surfaces
    • 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
    • B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency

Definitions

  • the present invention relates to a device for abrasive belt machining of a surface of revolution of a part, in particular for the superfinishing of an inner cylindrical surface by an abrasive belt animated by a movement of advance during machining according to the preamble of claim 1.
  • Break-in is a honing process that can only be done on heavy and expensive machinery.
  • the tools (grinders) used on these machines do not have flexibility in that each lap can only be used for a given diameter.
  • the superfinishing by abrasive belt makes it possible to attenuate these furrows without modifying the geometry of the surface and also provides another interesting result concerning the increase of compressive stresses at the surface and even at depth.
  • the abrasive belt machining device gives very good results in internal superfinishing, but, because of its structure, this device is not usable on surfaces of small diameter revolution.
  • the device according to this document using an abrasive belt driven by an advance movement during machining comprises a support plate, a support member of the abrasive belt against the surface to be machined, two guide pulleys arranged from and other of the support roller, and two deflection rods, all these elements being mounted on the support plate.
  • this known device is usable neither for small diameter surfaces of revolution, nor for deep surfaces of revolution.
  • US-A-2,751,724 discloses a strip machining apparatus, particularly for airfoil inner surface weld bead cladding for aircraft.
  • the apparatus comprises an elongated support member at the front end of which is fixed a head comprising a central opening bordered by ridges extending obliquely at 45 ° to the support diverging towards a front end.
  • the head is provided with outwardly offset machining rollers with an axis parallel to the surface to be machined.
  • JP 06 047660 A discloses a device for machining an inner cylindrical surface of a workpiece, rotated about the axis of the inner cylindrical surface during machining by an abrasive belt which is removed from a spare coil and rewound on a receiving coil.
  • the present invention is directed to a machining device according to claim 1, in particular abrasive belt superfinishing, which can also be used for small diameter inner revolution surfaces and possibly deep revolution surfaces.
  • the carrier has an elongated bar-shaped body having a proximal end for cantilever mounting and a distal opposite end corresponding to the free end of the elongate cantilevered body.
  • the support member is mounted on said body at the distal end thereof so that its bearing surface is projecting on a first side of said body.
  • the deflection means comprise two rods arranged cantilevered on said body at the distal end thereof, so as to deviate from the latter on a second side opposite said first side, obliquely in the direction of the proximal end of the body of the support.
  • the device according to the invention is not only very compact transversely, that is to say perpendicular to the axis of the surface of revolution to be machined, hence its ability to machine inner surfaces of small diameter, but can also, depending on the length of the elongate cantilever body of the support, be used for machining deep surfaces of revolution.
  • the device according to the invention is perfectly suitable for superfinishing the bore of transmission gears.
  • the abrasive belt considered in the direction of its advance, is shifted outwardly on one of the deflection rods from the first portion to the second portion of said path and an inward shift on the other rod passing from the second to the third portion of said path, the two rods diverging from each other.
  • This arrangement ensures optimal guidance of the abrasive belt on the deflection rods.
  • the support member of the abrasive belt may comprise a log mounted in a fixed position in a cylindrical housing formed in the body of the support at the distal end, so as to open on said first side.
  • the support member may comprise two logs mounted in a fixed position in two spaced parallel housings formed in the body of the support at the distal end, so as to open on said first side by a sector of a cylinder corresponding to an arc of less than 180 °, preferably less than 90 °, and more particularly less than 45 °.
  • the or each log may be metallic or may be preferably constituted by an elastomer, in particular an elastomer having a Shore hardness less than 100.
  • the latter may comprise a roller rotatably mounted on the support body, projecting on said first side.
  • the support member may alternatively comprise two spaced apart parallel rollers rotatably mounted on the body of the support projecting on said first side.
  • the two deflection rods could in principle be made in one piece with the body of the support, but from the point of view of manufacture, it is preferable that the rods are attached to the body of the support, being mounted in two holes in the body of the support at the distal end of the latter.
  • the two deflection rods and the support member may also be made in one piece with a head attached to the body of the support, this head being able in this case to be molded, for example in a metal or a plastic material such as polyurethane.
  • the abrasive belt is guided so that the two strands respectively from the two deflection rods to the two abrasive belt reels (new web reeling reel, used web reeling reel) are in two parallel planes.
  • the body of the support comprises on said second side at least one groove, the two parallel flanks, close to one another, thereby guiding the abrasive belt on said first and third portions. the path of the band.
  • the device as illustrated by FIGS. 1 to 3, is intended for the machining, in particular the superfinishing, of an inner cylindrical surface 1 in a part 2 driven in rotation during machining, with the aid of an abrasive belt 3 which, in a known manner, is moved in advance during machining, by being removed from a spare or unrepresented unwinding reel to be rewound onto a reel or unwind reel represented.
  • the device comprises a support body 4 in the form of an elongated bar, fixed cantilevered by its proximal end 5 to a non-represented element of a machine, capable of printing on the support 4 movements in two perpendicular directions symbolized by the arrow H and arrow V in Figure 2, the movement along the arrow H being perpendicular to the length of the bar 4 and the movement along the arrow V being parallel to the length of the bar 4.
  • the bar 4 carries, at its distal end 6, a support member 7 consisting of a log mounted in a cylindrical housing 8 formed in the bar 4 from the distal end 6, so that the housing opens laterally on a side 9 of the bar 4.
  • a cylinder segment of less than 180 ° of the surface of the log 7 thus exceeds the side 9 of the bar 4, constituting a bearing surface projecting on said side, as it appears especially in FIG. 2.
  • Said surface of the log 7 serves as a bearing surface of the abrasive belt 3 against the surface 1 to be machined, the strip 3 passing transversely on said surface of the log 7.
  • the bar 4 On either side of the bearing surface of the log 7, the bar 4 carries two deflection rods 10 arranged cantilevered on the bar 4, at the distal end of the latter, so that spread on a second side 11 opposed to the first side 9. As shown in Figure 2, the rods 10 extend, relative to the length of the bar 4, obliquely at 45 ° to the direction of the proximal end 5 of the bar 4.
  • each rod 10 diverge from each other from the distal end 6 of the bar 4.
  • each rod 10 is inclined to approximately 15 ° with respect to the median longitudinal plane of the bar 4.
  • the bar 4 further comprises, in its second side 11, a groove 12 for the two strands of the strip 3 extending from the deflection rods 10 upwards towards the two abrasive belt coils.
  • the abrasive belt 3, whose two strands are guided in the groove 12, on the smooth side of the strip 3, by the parallel flanks of the groove 12, is deflected by the rods 10 outwards in order to pass transversely on the support surface of the log 7.
  • the rods 10 disposed in close proximity to the bearing surface of the log 7, on either side of the latter, ensure the immobilization of the abrasive belt 3 relative to the 7 in the direction of the length of the bar 4, even under the effect of the movements that the bar 4 performs in the direction of the arrow V during machining.
  • an element 13 is attached to the bar 4, on the side 11, so as to cover the groove 12 and improve the guide of the abrasive belt 3 in this groove.
  • the element 13 is here close to the distal end 6 of the bar 4.
  • FIGS. 7 to 9 there is again the same general structure of the device as in FIGS. 1 to 3, with the difference that the support log fixed in a housing of the bar-shaped body the support is replaced here by a roller 14 rotatably mounted about an axis parallel to the length of the bar 4 in a bearing 15 fixedly projecting on the side 9 of the bar 4.
  • the transverse bulk of the device is increased, which allows this device to machine only surfaces 1 of increased diameter, but the bearing surface formed by the roller 15 mounted rotatably reduces the friction that the abrasive belt 3 undergoes during machining.
  • the embodiment according to FIGS. 10 to 12 differs from the embodiment according to FIGS. 7 to 9 in replacing the support roller 14 by two support rollers 14a mounted for rotation about axes parallel to the length of the support roller 14a.
  • the bar 4 in a double bearing 15a fixed on the side 9 of the bar 4, which provides two bearing surfaces of the abrasive belt 3 against the surface 1 to be machined.
  • rollers 14, 14a instead of being cylindrical, could be bulged, which would also machine internal concave surfaces of revolution.
  • the divergence of the two deflection rods 10 may vary in particular as a function of the diameter of the rods 10.
  • the divergence of the rods is even lower than the diameter of the rods is reduced, and also varies with the offset that the abrasive belt undergoes on the rods 10 between the strip portions in the groove 12 and the portion passing on the support member 7, 7a or 14, 14a, namely in the direction of advance of the strip 3, the deflection towards the outside between the groove 12 and the support member on the rod 10 located upstream and the inward deflection between the support member and the groove 12 on the rod 10 downstream.
  • this bearing surface defined by the cylinder sector surface of the log 7 opening out from the body 4 corresponds to an arc which is preferably less than 90 ° and in particular less than 45 °.

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  • 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)
  • Polishing Bodies And Polishing Tools (AREA)

Claims (8)

  1. Vorrichtung zur Bearbeitung einer drehsymmetrischen Fläche eines Bauteils mit einem Schleifband, insbesondere zur Feinstbearbeitung einer zylindrischen Innenfläche eines Bauteils, das während der Bearbeitung um die Achse der Fläche in Drehung versetzt wird, mit einem Träger, der dazu bestimmt ist, auf ein bewegliches Maschinenelement montiert zu werden und einen länglichen Körper (4) in Form eines Stabs aufweist, der ein proximales Ende (5) für seine freitragende Montage auf das bewegliche Maschinenelement und ein gegenüberliegendes distales Ende (6) hat, das dem freien Ende des freitragend montierten Körpers entspricht, mit einem Organ zum Auflegen des Schleifbands auf die zu bearbeitende Fläche, wobei das Organ auf den Körper am distalen Ende dieses Letzteren so montiert ist, dass die Achse seiner Auflagefläche parallel zur Länge des stabförmigen Körpers ist, wobei das Auflageorgan mindestens eine Auflagefläche in Form eines Zylindersektors mit einer Achse parallel zur Achse der zu bearbeitenden Fläche und auf einer ersten Seite (9) des Körpers vorstehend aufweist, und mit Umlenkmitteln des Schleifbands, die zwei freitragende Stangen aufweisen, die zu beiden Seiten des Auflageorgans in einer um 45° zur Achse der Auflagefläche schrägen Position angeordnet sind, um das Schleifband über eine Bahn zu führen, die einen ersten Abschnitt parallel zur Achse der Auflagefläche, einen zweiten Abschnitt lotrecht zur Achse der Auflagefläche, der auf der Auflagefläche zwischen den zwei Umlenkstangen verläuft, und einen dritten Abschnitt parallel zur Achse der Auflagefläche aufweist, dadurch gekennzeichnet, dass dem Schleifband während der Bearbeitung eine Vorschubbewegung verliehen wird, indem es von einer Vorratsspule entnommen und wieder auf eine Aufnahmespule aufgewickelt wird, dass der erste Abschnitt der Bahn sich zwischen einer der Spulen und einer der Umlenkstangen befindet und der dritte Abschnitt der Bahn sich zwischen der anderen Umlenkstange und der anderen Spule befindet, und dass die zwei Umlenkstangen (10) auf dem Körper an dessen distalem Ende derart freitragend angeordnet sind, dass sie sich von diesem letzteren auf einer zweiten, der ersten gegenüberliegenden Seite (11) schräg in Richtung des proximalen Endes (5) des Körpers des Trägers entfernen, wobei der Körper (8) des Trägers auf der zweiten Seite (11) mindestens eine Rille (12) zur Führung des Schleifbands (3) auf dem ersten und dem dritten Abschnitt der Bahn des Bands und ein auf den Körper angesetztes Element (13) mindestens in der Nähe des distalen Endes des Körpers auf der zweiten Seite (11) aufweist, um die Rille (12) zu bedecken, um die Führung des Schleifbands (3) zu verbessern.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass das Schleifband (3), in Vorschubrichtung gesehen, eine Verschiebung nach außen auf einer der Stangen (10) erfährt, indem es vom ersten Abschnitt zum zweiten Abschnitt der Bahn übergeht, und eine Verschiebung nach innen auf der anderen Stange (10) erfährt, indem es vom zweiten zum dritten Abschnitt der Bahn übergeht, und dass die zwei Stangen (10) zueinander divergieren.
  3. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Auflageorgan ein Rundstück (7) aufweist, das in ortsfester Stellung in einem im Körper (4) des Trägers am distalen Ende (6) ausgebildeten Sitz (8) so montiert ist, dass es auf der ersten Seite (9) mündet.
  4. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Auflageorgan zwei Rundstücke (7a) aufweist, die in ortsfester Stellung in zwei im Körper (4) des Trägers am distalen Ende (6) ausgebildeten parallelen und zueinander beabstandeten Sitzen (8a) so montiert sind, dass sie auf der ersten Seite (9) münden.
  5. Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, dass das Rundstück (7, 7a) auf der ersten Seite (9) in einem Zylindersektor mündet, der einem Bogen von weniger als 180°, vorzugsweise weniger als 90°, und insbesondere weniger als 45° entspricht.
  6. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Auflageorgan eine Rolle (14) aufweist, die drehbeweglich auf den Körper (4) des Trägers auf der ersten Seite (9) vorstehend montiert ist.
  7. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Auflageorgan zwei parallele und zueinander beabstandete Rollen (14a) aufweist, die drehbeweglich auf den Körper (4) des Trägers auf der ersten Seite (9) vorstehend montiert sind.
  8. Vorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Stangen (10) in zwei Löcher montiert sind, die im Körper (4) des Trägers am distalen Ende (6) dieses Körpers ausgebildet sind.
EP02291351A 2001-06-06 2002-06-04 Vorrichtung zum Schleifen von einer Rotationsfläche mit einem Polierband, insbesondere zum Innen-Feinstbearbeiten von einer zylindrischen Oberfläche Expired - Lifetime EP1264662B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0107402 2001-06-06
FR0107402A FR2825651B1 (fr) 2001-06-06 2001-06-06 Dispositif pour l'usinage par bande abrasive d'une surface de revolution, notamment pour la superfinition d'une surface cylindrique interieure

Publications (2)

Publication Number Publication Date
EP1264662A1 EP1264662A1 (de) 2002-12-11
EP1264662B1 true EP1264662B1 (de) 2007-03-14

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EP02291351A Expired - Lifetime EP1264662B1 (de) 2001-06-06 2002-06-04 Vorrichtung zum Schleifen von einer Rotationsfläche mit einem Polierband, insbesondere zum Innen-Feinstbearbeiten von einer zylindrischen Oberfläche

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EP (1) EP1264662B1 (de)
AT (1) ATE356692T1 (de)
DE (1) DE60218779T2 (de)
FR (1) FR2825651B1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103659528A (zh) * 2013-12-06 2014-03-26 宁波职业技术学院 一种抛光装置
CN115338745B (zh) * 2022-08-08 2023-11-17 国网浙江省电力有限公司江山市供电公司 一种水利发电用设备打磨装置及打磨方法
CN117067047B (zh) * 2023-10-10 2024-01-23 泰州市龙瑞阀业有限公司 一种阀门磨削用加工设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751724A (en) * 1952-12-26 1956-06-26 Smith Corp A O Belt grinding apparatus
SE466642B (sv) * 1990-08-15 1992-03-16 Holger Joensson Anordning foer slipning, polering etc av arbetsstycken medelst en sluten slinga av slip-, poler- etc band
JPH0714588B2 (ja) * 1992-07-28 1995-02-22 株式会社松田精機 フイルム研磨材を用いた内径研磨装置
JPH08309652A (ja) * 1995-05-15 1996-11-26 Yasunaga:Kk ラッピング装置

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Publication number Publication date
EP1264662A1 (de) 2002-12-11
ATE356692T1 (de) 2007-04-15
DE60218779T2 (de) 2007-12-06
FR2825651B1 (fr) 2003-10-17
DE60218779D1 (de) 2007-04-26
FR2825651A1 (fr) 2002-12-13

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