EP0434533A1 - Maschine zum Supfinieren von Wellen, insbesondere Nockenwellen - Google Patents

Maschine zum Supfinieren von Wellen, insbesondere Nockenwellen Download PDF

Info

Publication number
EP0434533A1
EP0434533A1 EP90403620A EP90403620A EP0434533A1 EP 0434533 A1 EP0434533 A1 EP 0434533A1 EP 90403620 A EP90403620 A EP 90403620A EP 90403620 A EP90403620 A EP 90403620A EP 0434533 A1 EP0434533 A1 EP 0434533A1
Authority
EP
European Patent Office
Prior art keywords
arms
abrasive
shaft
machined
machine according
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
EP90403620A
Other languages
English (en)
French (fr)
Other versions
EP0434533B1 (de
Inventor
Jean-Claude Pineau
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 EP0434533A1 publication Critical patent/EP0434533A1/de
Application granted granted Critical
Publication of EP0434533B1 publication Critical patent/EP0434533B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • B24B21/18—Accessories
    • 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
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/08—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section
    • B24B19/12—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding non-circular cross-sections, e.g. shafts of elliptical or polygonal cross-section for grinding cams or camshafts

Definitions

  • the present invention relates to a machine for superfinishing machining by grooming the bearing surfaces of shafts, in particular cams or cams and camshaft trunnions, the shafts being taken between points and driven in a rotational movement. around their axis, and an abrasive strip being applied against each surface to be machined.
  • the abrasive belts are generally advanced step by step, the belts being immobile during the actual machining,
  • the present invention relates to a machine for superfinishing machining by a simple and compact structure, allowing the simultaneous machining of several spans even very close together on the same shaft.
  • the invention also relates to a machine for superfinishing machining by grinding with continuous unwinding of the abrasive strips during machining.
  • the subject of the invention is also a machine for superfinishing machining by grinding allowing a simple and rapid replacement of the abrasive belts and eliminating the losses of belt when changing the abrasive belts.
  • the machine according to the invention for machining superfinishing by grooming the bearing surfaces of shafts comprises a plurality of arms mounted on the same support so as to be able to pivot in parallel planes, perpendicular to the axis of the shaft.
  • This machine further comprises a plurality of maneuvering means with preset force each acting on one of said arms.
  • the machine further comprises a plurality of abrasive belts and a plurality of abrasive band application means associated with said arms so that each arm can pivot in the direction of the shaft, under the action of its operating means. , and press an abrasive strip with a predetermined pressure by its means of application against one of the bearing surfaces to be machined from the shaft.
  • the arms intended for the simultaneous machining of the different spans of the shaft are distributed on either side of the shaft to be machined by being pivotally mounted around two parallel axes spaced so that the means of application of abrasive tape of the different arms are on the opposite sides of the shaft and are pressed against the surfaces to be machined from the opposite sides of the shaft.
  • the arms are distributed on either side of the shaft to be machined in such a way that the means of applying an abrasive strip intended for machining the successive bearings of the shaft are supported in alternating from opposite sides of the shaft against the surfaces to be machined. This arrangement ensures minimal bending of the shaft during machining.
  • the arms can advantageously be pivotally mounted around the two axes so that each time two arms pivot in the same plane passing between two successive bearing surfaces to be machined, the means for applying the abrasive strip being arranged on the opposite sides of said arms.
  • the means for operating the arms and for pressing the means for applying the abrasive belt are preferably constituted by jacks with controlled supply pressure.
  • each abrasive strip In view of the continuous drive of each abrasive strip during machining, it is possible, according to one embodiment, to unwind each abrasive strip from a new strip supply reel and to rewind it on a worn strip take-up reel , the receiving coils of all the abrasive belts comprising common drive means.
  • each arm is equipped with means for the removable reception of a removable cassette containing a supply reel and a reel for receiving an abrasive strip and comprising a roller for applying this strip against the surface to be machined, as well as means for coupling the take-up reel of the cassette with said common drive means.
  • Said coupling means may comprise a shaft end mounted in rotation in said arm and carrying on one side of the arm elements for coupling with the take-up reel of the cassette and on the other side of the arm a wheel or pulley connected by a belt or transmission similar to a wheel or pulley of a common drive shaft for the reels receiving the cassettes of all the arms, this shaft serving as a pivot axis for all the arms located on one side of the shaft to be machined.
  • the arms are distributed over two pivot axes arranged on both sides of the shaft to be machined
  • the two pivot axes are constituted by two drive shafts connected together by a belt transmission or the like.
  • each arm can also be simply fitted with an abrasive band application roller, in which case the abrasive belts are removed from untrained supply coils, mounted on an axis. common, and are rewound on driven take-up coils mounted on a drive shaft common to the coils of the abrasive belts for all the arms of the machine.
  • a superfinishing machine by grooming for the simultaneous machining of all the camshaft cams comprises a headstock 1 and a tailstock 2 making it possible to take a camshaft 3 between points in horizontal position, means not shown being provided elsewhere for driving the camshaft 3 in rotation about its axis.
  • the headstock 1 and the tailstock 2 are also driven in an oscillating movement back and forth along their axis, as is well known for grooming.
  • camshaft 3 comprising eight cams 4 a to 4 h in the example shown is installed a grooming assembly 5 mounted in a fixed position on a machine frame 6.
  • the entire abrasive belt 5 comprises, as shown in Figure 2, two flanges 7 vertical, parallel, spaced apart, between which eight arms 8 a to 8 h is pivotably mounted about two axes 9 and 9b extending horizontal, as shown in Figure 1, in the same horizontal plane located above the axis of the headstock 1 and the tailstock 2, parallel to this axis, in a symmetrical position on either side of a passing vertical plane by said axis.
  • the two axes 9 a and 9 b consist of two shafts, the two ends of which are mounted in rotation in the flanges 7.
  • the arms 8 a to 8 h are distributed over the two shafts 9 a and 9 b in such a way that four arms 8 a , 8 c , 8 e and 8 g are located on the shaft 9 a and the four other arms 8 b , 8 d , 8 f and 8 h on the shaft 9 b , so that the arms are opposite in pairs of arms 8 a / 8 b , 8 c / 8 d , 8 e / 8 f and 8 g / 8 h rotating in parallel planes.
  • the arm 8 carries, at its lower end, a cassette 10 containing an abrasive strip 11 which can be unwound from a supply reel 12 to be rewound on a take-up reel 13 after passing over an application roller 14 at the place where the abrasive strip is exposed towards the outside of the cassette 10.
  • the latter is arranged on one side of the arm 8 so that the applicator roller 14 is at the height of the camshaft 3 and is turned towards this last.
  • the cassette 10 is removably connected to the arm 8 by means not shown, comparable to those well known for maintaining cassettes in other applications.
  • the arm 8 With a view to rotating the take-up reel 13 of the cassette 10, the arm 8 carries, as shown in FIG. 2, a shaft end 15 rotatably mounted in the arm 8 and bearing on one side of the arm 8 of the coupling means not shown for the take-up reel 15 of the cassette 10 and on the other side of the arm 8 a pulley 16.
  • the pulley 16 is connected by a belt 17 to a pulley 18 fixed on the shaft 9 around which the arm 8 is pivotally mounted.
  • the two shafts 9 a and 9 b also each carry a pulley 19 for the purpose of their coupling by a transmission belt 20,
  • a geared motor 21 fixed on one of the flanges 7 and coupled with the shaft 9 b thus ensures the rotational drive, by means of belt transmissions 20 and 17, of the receiving coils 15 of the cassettes 10 of all the arms 8 and consequently abrasive belts 11 contained in the cassettes 10.
  • FIGS 3 and 4 illustrate another embodiment of a superfinishing machine according to the invention which, while having the same general structure as the machine according to Figures 1 and 2, differs from the latter by the fact that the abrasive belts 11 are not presented in cassettes detachably attached to the arm; the abrasive belts 11 intended for the machining of the various cams 4 a to 4 h of the camshaft 3 are here removed from supply coils 23 a to 23 h mounted on a common axis 24 and are rewound on receiving coils 25 a at 25 h mounted on a common shaft 26 driven in rotation by a geared motor 27.
  • Each arm 8 a to 8 g controlled by its jack 22 carries at its lower end an application tool 28 a to 28 g comprising guide pulleys for the strip 11 and an application roller 29 for pressing the abrasive strip 11 against the concerned cam 4 of the shaft 3.
  • the mounting method shown and described with arms 8 pivotally mounted on two axes 9 a , 9 b so that the abrasive band application rollers intended for the machining of successive cams are pressed alternately from the sides opposite of the shaft against the cams machining has the advantage of avoiding bending of the shaft as it could occur in the event of different distribution of the arms on the two axes and especially in the case of mounting of all the arms on the same axis, that is to say the support of all the abrasive band application rollers from the same side against the shaft to be machined.
  • the machine according to the invention can also be used, not only for the simultaneous superfinishing of the cams of a camshaft, but also for example for the simultaneous superfinishing of several bearings on other shafts, for example gearbox shafts of speed.
  • it is more particularly the simultaneous superfinishing of several eccentric and / or non-circular spans on the same shaft which has hitherto constituted a difficult or even impossible problem to solve, in particular when these spans are very close together as is the case. case on camshafts.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
EP19900403620 1989-12-19 1990-12-17 Maschine zum Supfinieren von Wellen, insbesondere Nockenwellen Expired - Lifetime EP0434533B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8916826 1989-12-19
FR8916826A FR2655900B1 (fr) 1989-12-19 1989-12-19 Machine de superfinition pour des arbres, notamment des arbres a cames.

Publications (2)

Publication Number Publication Date
EP0434533A1 true EP0434533A1 (de) 1991-06-26
EP0434533B1 EP0434533B1 (de) 1993-09-15

Family

ID=9388704

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900403620 Expired - Lifetime EP0434533B1 (de) 1989-12-19 1990-12-17 Maschine zum Supfinieren von Wellen, insbesondere Nockenwellen

Country Status (4)

Country Link
EP (1) EP0434533B1 (de)
DE (1) DE69003366T2 (de)
ES (1) ES2044499T3 (de)
FR (1) FR2655900B1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2709084A1 (fr) * 1993-08-20 1995-02-24 Thielenhaus Ernst Kg Machine pour l'usinage en deux étapes d'arbres dégrossis à la meule, en particulier d'arbres à cames de véhicules automobiles.
FR2724862A1 (fr) * 1994-09-28 1996-03-29 Abramatic Machine d'usinage, en particulier de microfinition, pour arbres a cames
EP0733437A1 (de) * 1995-03-24 1996-09-25 Toyota Jidosha Kabushiki Kaisha Gerät zur Schleifbearbeitung, ausgerüstet mit einer Vorrichtung zur Erleichterung des Schleifbandwechsels
US5755615A (en) * 1995-11-13 1998-05-26 Toyota Jidosha Kabushiki Kaisha Lapping apparatus
US6383063B1 (en) 1998-04-03 2002-05-07 Toyota Jidosha Kabushiki Kaisha Polishing apparatus and polishing method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015010942B4 (de) * 2015-08-18 2023-11-09 Emag Holding Gmbh Verfahren und Vorrichtung zur Schleif- und Feinstbearbeitung

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1076581A (fr) * 1953-04-30 1954-10-27 Machine destinée à exécuter la finition et le polissage des cames
DE1950839A1 (de) * 1969-10-09 1971-05-13 Peter Nagel Vorrichtung zum Finishen von Werkstuecken mit nicht rotationssymmetrischer Form
GB2073068A (en) * 1980-03-25 1981-10-14 Thielenhaus Ernst Kg Finishing of Camshafts
GB2073069A (en) * 1980-03-25 1981-10-14 Thielenhaus Ernst Kg Process for the Finishing of Camshafts
FR2595970A1 (fr) * 1986-03-20 1987-09-25 Thielenhaus Maschf Machine a rectifier pour la rectification de pieces a usiner allongees

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1076581A (fr) * 1953-04-30 1954-10-27 Machine destinée à exécuter la finition et le polissage des cames
DE1950839A1 (de) * 1969-10-09 1971-05-13 Peter Nagel Vorrichtung zum Finishen von Werkstuecken mit nicht rotationssymmetrischer Form
GB2073068A (en) * 1980-03-25 1981-10-14 Thielenhaus Ernst Kg Finishing of Camshafts
GB2073069A (en) * 1980-03-25 1981-10-14 Thielenhaus Ernst Kg Process for the Finishing of Camshafts
FR2595970A1 (fr) * 1986-03-20 1987-09-25 Thielenhaus Maschf Machine a rectifier pour la rectification de pieces a usiner allongees

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2709084A1 (fr) * 1993-08-20 1995-02-24 Thielenhaus Ernst Kg Machine pour l'usinage en deux étapes d'arbres dégrossis à la meule, en particulier d'arbres à cames de véhicules automobiles.
FR2724862A1 (fr) * 1994-09-28 1996-03-29 Abramatic Machine d'usinage, en particulier de microfinition, pour arbres a cames
EP0704280A1 (de) * 1994-09-28 1996-04-03 ABRAMATIC Société Anonyme Werkzeugmaschine, besonders zum Feinschleifen von Nockenwellen
EP0733437A1 (de) * 1995-03-24 1996-09-25 Toyota Jidosha Kabushiki Kaisha Gerät zur Schleifbearbeitung, ausgerüstet mit einer Vorrichtung zur Erleichterung des Schleifbandwechsels
US5865669A (en) * 1995-03-24 1999-02-02 Toyota Jidosha Kabushiki Kaisha Abrasive machining apparatus equipped with a device for facilitating replacement of abrasive tape
EP0950467A2 (de) * 1995-03-24 1999-10-20 Toyota Jidosha Kabushiki Kaisha Gerät zur Schleifbearbeitung, ausgerüstet mit einer Vorrichtung zur Erleichterung des Schleifbandwechsels
EP0950467A3 (de) * 1995-03-24 1999-11-03 Toyota Jidosha Kabushiki Kaisha Gerät zur Schleifbearbeitung, ausgerüstet mit einer Vorrichtung zur Erleichterung des Schleifbandwechsels
EP1022092A1 (de) * 1995-03-24 2000-07-26 Toyota Jidosha Kabushiki Kaisha Gerät zur Schleifbearbeitung, ausgerüstet mit einer Vorrichtung zur Erleichterung des Schleifbandwechsels
CN1095727C (zh) * 1995-03-24 2002-12-11 丰田自动车株式会社 装备有便于更换砂带的装置的磨削加工设备
US5755615A (en) * 1995-11-13 1998-05-26 Toyota Jidosha Kabushiki Kaisha Lapping apparatus
US6383063B1 (en) 1998-04-03 2002-05-07 Toyota Jidosha Kabushiki Kaisha Polishing apparatus and polishing method

Also Published As

Publication number Publication date
EP0434533B1 (de) 1993-09-15
FR2655900A1 (fr) 1991-06-21
DE69003366D1 (de) 1993-10-21
FR2655900B1 (fr) 1995-01-20
ES2044499T3 (es) 1994-01-01
DE69003366T2 (de) 1994-02-03

Similar Documents

Publication Publication Date Title
EP0640412B1 (de) Reinigungsvorrichtung für eine Walze
EP0875476B1 (de) Wickler mit zwei Spindeln zum Aufwickeln einer Bahn
EP0495691B1 (de) Rundschleifmaschine
FR2667530A1 (fr) Procede et appareil de rectification des manetons de vilebrequin.
FR2596947A1 (fr) Dispositif d'avance pour deplacement le long d'un tronc d'arbre
FR2620117A1 (fr) Machines diviseuses et reenrouleuses de bande
EP0434533B1 (de) Maschine zum Supfinieren von Wellen, insbesondere Nockenwellen
FR2477513A1 (fr) Dispositif deviateur pour bandes de papier en particulier
FR2478594A1 (fr) Transporteur helicoidal
EP0795504B1 (de) Maschine zum kontinuierlichen Abwickeln von Rollen mit zumindest einer Einrichtung zum gleichzeitigen Abwickeln von zwei paarweise oder koaxial angeordneten Rollen
FR2502544A1 (fr) Appareil de fabrication d'un tube de papier
EP0896856B1 (de) Werkzeugmaschine insbesondere zum Feinstbearbeiten von zylindrischen, rotationssymmetrischen Oberflächen mittels eines tangential vorbeilaufenden Schleifbands
WO2003002435A2 (fr) Dispositif de transport de pieces pour l'alimentation de machines
EP1336454A1 (de) Verfahren und Vorrichtung zur Fenstbearbeitung der Lagerfläche eines Werkstücks, insbesondere für die Feinstbearbeitung der Nockenfläche einer Nockenwelle
FR2690681A1 (fr) Dispositif pour enrouler ou pour enrouler dérouler du câble sur touret.
FR2657074A1 (fr) Appareil pour la pose de ruban adhesif.
FR2694715A1 (fr) Procédé et appareil de rectification des manetons de villebrequin.
FR2823061A1 (fr) Machine de recolte avec un dispositif d'entrainement perfectionne
FR2559226A1 (fr) Dispositif d'entrainement a courroie et machine a bois en comportant application
EP1588968A1 (de) Trag- und Antriebsmodul eines aufgespulten bahnförmigen Materials für eine Bearbeitungsmaschine
FR2662111A1 (fr) Mecanisme pour le decoupage en continu de materiau en feuille en forme de bandes.
EP1038633B1 (de) Vorrichtung zur Schleifbearbeitung von Werkstücken, insbesondere zur Feinstbearbeitung
FR2588792A1 (fr) Procede et dispositif d'usinage ou de controle sur site pour pieces rotatives
FR2545419A1 (fr) Machine de rainurage et de coupe pour bandes de carton ou materiaux similaires
FR2470080A1 (fr) Treuil du type cabestan a poulies de friction et tambour a ressort d'enroulement

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): CH DE ES FR GB IT LI SE

17P Request for examination filed

Effective date: 19910805

17Q First examination report despatched

Effective date: 19921109

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): CH DE ES FR GB IT LI SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930915

ITF It: translation for a ep patent filed

Owner name: BARZANO' E ZANARDO MILA

REF Corresponds to:

Ref document number: 69003366

Country of ref document: DE

Date of ref document: 19931021

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19930928

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Effective date: 19931231

Ref country code: LI

Effective date: 19931231

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2044499

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

26N No opposition filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20061115

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20061211

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20061212

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20061214

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20061231

Year of fee payment: 17

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20071217

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20081020

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071217

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20071218

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071218

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20071217