EP0169971A1 - Universal grinding machine for mass production - Google Patents

Universal grinding machine for mass production Download PDF

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Publication number
EP0169971A1
EP0169971A1 EP85103276A EP85103276A EP0169971A1 EP 0169971 A1 EP0169971 A1 EP 0169971A1 EP 85103276 A EP85103276 A EP 85103276A EP 85103276 A EP85103276 A EP 85103276A EP 0169971 A1 EP0169971 A1 EP 0169971A1
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EP
European Patent Office
Prior art keywords
grinding wheel
wheel
grinding
slide
grinding machine
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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.)
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EP85103276A
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German (de)
French (fr)
Inventor
Luciano Barbisan
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Individual
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Individual
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Publication of EP0169971A1 publication Critical patent/EP0169971A1/en
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    • 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
    • B24B27/00—Other grinding machines or devices
    • B24B27/0084—Other grinding machines or devices the grinding wheel support being angularly adjustable
    • 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
    • B24B5/01—Machines or devices designed for grinding surfaces of revolution on work, including those which also grind adjacent plane surfaces; Accessories therefor for combined grinding of surfaces of revolution and of adjacent plane surfaces on work
    • 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
    • B24B53/00—Devices or means for dressing or conditioning abrasive surfaces
    • B24B53/06—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels
    • B24B53/08—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like
    • B24B53/081—Devices or means for dressing or conditioning abrasive surfaces of profiled abrasive wheels controlled by information means, e.g. patterns, templets, punched tapes or the like by means of a template

Definitions

  • the present invention relates to grinding machines for cylindrical or flat surfaces capable of performing high productions fully automatically.
  • the old USA patent n. 2.699.0108 shows a grinding machine where the main grinding wheel is mounted on a rotating table on which is also mounted a grinding device consisting of two diamonds. These two different tools - diamonds - wear differently and therefore cannot guarantee high precision. After a few dressings, the edge of the grinding wheel is no longer in the desired position.
  • the aim of the present invention is to produce a universal grinding machine making it possible to obtain, with the maximum precision and the minimum possible loss of time, the grinding of both cylindrical and plane surfaces arranged perpendicularly to the axis of the room.
  • the above-mentioned object was obtained on a grinding machine where the grinding wheel and all of its actuating means are mounted on a table which can rotate around a fixed vertical axis, and on the same table is also mounted, using a group of slides, a single diamond wheel used for dressing the grinding wheel.
  • the part P to be rectified is mounted between the point 31 provided on the workpiece head 1 and the tailstock 32 supported by the support 2.
  • the workpiece head 1 is equipped with robust, high-precision rotating supports which allow parts P having large diameters to be ground, even without the support of the tailstock 32.
  • the workpiece head 1 and the support 2 of the tailstock 32 are mounted on the slide 3 on which it is possible to record the reciprocal distance between the tip 31 and the tailstock 32, so as to adapt to each of the sizes of the pieces P to be corrected.
  • the slide 3 is further provided with slides 27 and 28 which make it possible to slide the slide 3 relative to the base 26, in the longitudinal direction of the axis XX of the part P.
  • a special electronic device 4 makes it possible to give the slide 3 a position such that the faces of the part P to be ground are as close as possible to the grinding wheel 5.
  • the grinding wheel 5 is mounted, using its flanges 6, on a robust shaft 10 supported by special hydrostatic or hydrodynamic type bearings which are contained in a grinding wheel support 7 where the lubricating oil is collected and which , after being filtered, is returned under pressure to the bearings.
  • the rotation of the grinding wheel shaft 10 is carried out by a motor 8 connected, through the belt 33, to the pulley 9 fixed using known anti-vibration means (not shown) to the grinding wheel support 7 of so that no vibration is transmitted to it.
  • the grinding wheel support 7 is fixed to the table 11 which moves on longitudinal slides provided on the platform 34 which can rotate around a pivot 24 fixed on the base 26.
  • the longitudinal movement of the table 11 relative at the rotating platform 34 is printed by the stepping motor 12 for precision advances, while the larger movements of approach and away are carried out by a hydraulic piston 13 contained in the jacket 14.
  • This piston 13 is preferably carried out by means of a special device with rapid actuation which makes it possible to quickly leave free sufficient space to easily assemble and disassemble the part P to be rectified.
  • the device for regenerating the grinding wheel is mounted on the rear part of the table 11 behind the wheel rectifier 5. It essentially consists of a lining wheel 15 actuated by a motor 35.
  • the lining device is fixed to a longitudinal carriage 16 which is in turn supported by a transverse carriage 17, the latter being mounted rolling on the table 11.
  • the carriage 17 has a longitudinal precision movement making it possible to remove. the grinding wheel 5, for each of the regeneration operations, a quantity of material always identical.
  • the longitudinal displacement of the carriage 17 is obtained by means of a stepping motor 21 and a reduction gear 22 acting on a very precise ball screw 23.
  • the transverse movement of the carriage 16 is done using a stepping motor.
  • the movements of the longitudinal carriage 16 and the transverse carriage 17 are controlled by the end 30 of the screw 19 which follows the template 18 fixedly mounted on the table 11. These movements cause the diamond wheel 15 to regenerate the grinding wheel according to the desired shape.
  • the screw 19 allows the regenerating wheel 15 to be brought closer and closer to the rectifying wheel 5, thereby compensating for the amount removed each time by the regenerative wheel.
  • the lead screw which meshes with the screw 19 is integral with the motor 35 which actuates the regenerative grinding wheel 15.
  • the grinding wheel trice is quickly brought closer using the rapid advance device up to a few hundredths of m. of the room; after which the stepping motor 8 is brought into play, which advances the grinding wheel by first making it do a roughing cycle and then a finishing cycle, as previously established, until reaching the final dimension which is measured by the self-calibration fork.
  • the wheel is automatically returned to its starting position, first by means of the stepping motor, then by rapid hydraulic removal.
  • the carriage 17 is advanced by a few hundredths of min. with respect to the stepping motor 21, the reduction gear 22 and the precision screw 23.
  • the grinding wheel 5 automatically returns to its initial position, ready to grind another batch of parts.
  • the machine stops automatically when, due to regeneration, the wheel decreases in diameter so that it can become dangerous.
  • the platform 34 When it is desired to rectify parts having flat surfaces perpendicular to the axis of the part, the platform 34 must be rotated around the pivot 24 in the direction of the arrows A in FIG. 2, until a surface of the grinding wheel is in position perpendicular to the axis of the slide 3 carrying the tip 31 and the tailstock 32, which amounts to saying perpendicular to the axis of the part P.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

The finish grinding machine has a grinding wheel (5) mounted on a slide which can be rotated w.r.t the machine frame. The distance between the axis of rotation of the slide and the axis (X-X) of the workpiece (7) is equal to or greater than the maximum diameter of the grinding wheel (5). The slide, which carries the grinding wheel, also carries the tool (15) for dressing the grinding wheel. This dressing tool (15) consists of a single diamond wheel and its profile is checked against a template (18) which is also mounted on the slide.

Description

La présente invention se rapporte aux rectifieuses pour surfaces cylindriques ou planes pouvant réaliser de fortes productions de façon entièrement automatique.The present invention relates to grinding machines for cylindrical or flat surfaces capable of performing high productions fully automatically.

Les rectifieuses utilisées jusqu'à présent n'arrivent pas à atteindre une grande précision, ni même de grandes productions à cause du temps nécessaire pour le positionnement de la meule rectificatrice aussi bien par rapport à la pièce que par rapport à la meule diamantée servant au dressage.The grinders used until now cannot achieve high precision, or even large productions because of the time required for positioning the grinding wheel both with respect to the workpiece and with respect to the diamond wheel used for dressage.

Le vieux brevet USA n. 2.699.018, montre une rectifieuse où la meule principale est montée sur une table tournante sur laquelle est aussi monté un dispositif de riblage consistant en deux diamants. Or ces deux différents outils - les diamants - s'usent de façon différente et ils ne peuvent donc pas garantir une grande précision. Après quelques dressages, l'arête de la meule rectificatrice n'est plus dans la position voulue.The old USA patent n. 2.699.018, shows a grinding machine where the main grinding wheel is mounted on a rotating table on which is also mounted a grinding device consisting of two diamonds. These two different tools - diamonds - wear differently and therefore cannot guarantee high precision. After a few dressings, the edge of the grinding wheel is no longer in the desired position.

Donc, le but de la présente invention est de réaliser une rectifieuse universelle permettant d'obtenir, avec le maximum de précision et le minimum possible de perte de temps, le meulage de surfaces aussi bien cylindriques que planes disposées perpendiculairement par rapport à l'axe de la pièce.Therefore, the aim of the present invention is to produce a universal grinding machine making it possible to obtain, with the maximum precision and the minimum possible loss of time, the grinding of both cylindrical and plane surfaces arranged perpendicularly to the axis of the room.

Le but susmentionné a été obtenu sur une rectifieuse où la meule et tous ses moyens d'actionnement sont montés sur une table pouvant tourner autour d'une axe vertical fixe, et sur la même table est aussi montée, à l'aide d'un groupe de coulisseaux, une seule meule diamantée servant au dressage de la meule rectificatrice.The above-mentioned object was obtained on a grinding machine where the grinding wheel and all of its actuating means are mounted on a table which can rotate around a fixed vertical axis, and on the same table is also mounted, using a group of slides, a single diamond wheel used for dressing the grinding wheel.

Il est aussi prévu, sur cette même table, un gabarit fixe qui donne à la meule diamantée le profil exact que devra prendre la meule rectificatrice après chaque régénération. C'est-à-dire que ce gabarit sert de guide à la meule diamantée.There is also a fixed template on the same table which gives the diamond wheel the exact profile that the grinding wheel will have to take after each regeneration. That is to say, this template serves as a guide for the diamond wheel.

L'invention sera maintenant mieux expliquée à partir d'un exemple de réalisation qui a été représenté sur les Figures jointes où

  • Fig. 1 est une vue latérale schématique de la rectifieuse proposée; et
  • Fig. 2 est une vue d'en haut de cette même rectifieuse où la meule rectificatrice a été tournée, si bien qu'elle résulte inclinée par rapport à l'axe de la pièce.
The invention will now be better explained on the basis of an exemplary embodiment which has been shown in the attached figures where
  • Fig. 1 is a schematic side view of the proposed grinder; and
  • Fig. 2 is a view from above of this same grinding machine where the grinding wheel has been turned, so that it results inclined with respect to the axis of the part.

En se rapportant aux figurers, on remarquera que la pièce P à rectifier est montée entre la pointe 31 prévue sur la tête porte-pièce 1 et la contre-pointe 32 soutenue par le support 2.Referring to the figurers, it will be noted that the part P to be rectified is mounted between the point 31 provided on the workpiece head 1 and the tailstock 32 supported by the support 2.

La tête porte-pièce 1 est équipée de robustes soutiens tournants de grande précision qui permettent de rectifier des pièces P ayant de grands diamètres, même sans le soutien de la contre-pointe 32.The workpiece head 1 is equipped with robust, high-precision rotating supports which allow parts P having large diameters to be ground, even without the support of the tailstock 32.

La tête porte-pièce 1 et le support 2 de la contre-pointe 32 sont montés sur le coulisseau 3 sur lequel il est possible d'enregistrer la distance réciproque entre la pointe 31 et la contre-pointe 32, de façon à s'adapter à chacune des grandeurs des pièces P à rectifier.The workpiece head 1 and the support 2 of the tailstock 32 are mounted on the slide 3 on which it is possible to record the reciprocal distance between the tip 31 and the tailstock 32, so as to adapt to each of the sizes of the pieces P to be corrected.

Le coulisseau 3 est en outre muni de glissières 27 et 28 qui permettent de faire glisser le couliseau 3 par rapport à la base 26, dans le sens longitudinal de l'axe X-X de la pièce P. Un dispositif électronique spécial 4 permet de donner au coulisseau 3 une position telle que les faces de la pièce P à rectifier se présentent le plus près possible de la meule rectificatrice 5.The slide 3 is further provided with slides 27 and 28 which make it possible to slide the slide 3 relative to the base 26, in the longitudinal direction of the axis XX of the part P. A special electronic device 4 makes it possible to give the slide 3 a position such that the faces of the part P to be ground are as close as possible to the grinding wheel 5.

La meule rectificatrice 5 est montée, à l'aide de ses brides 6, sur un arbre robuste 10 soutenu par des coussinets spéciaux de type hydrostatique ou hydrodynamique qui sont contenus dans un support porte-meule 7 où l'huile lubrifiante est recueillie et qui, après être filtrée, est renvoyée sous pression aux coussinets.The grinding wheel 5 is mounted, using its flanges 6, on a robust shaft 10 supported by special hydrostatic or hydrodynamic type bearings which are contained in a grinding wheel support 7 where the lubricating oil is collected and which , after being filtered, is returned under pressure to the bearings.

La rotation de l'arbre porte-meule 10 est exécutée par un moteur 8 relié, à travers la courroie 33, à la poulie 9 fixée à l'aide de moyens anti-vibration connus (non représentés) au support porte-meule 7 de sorte qu'aucune vibration ne soit transmise à celui-ci.The rotation of the grinding wheel shaft 10 is carried out by a motor 8 connected, through the belt 33, to the pulley 9 fixed using known anti-vibration means (not shown) to the grinding wheel support 7 of so that no vibration is transmitted to it.

Le support porte-meule 7 est fixé à la table 11 qui se déplace sur des glissières longitudinales prévues sur la plate-forme 34 qui peut tourner autour d'un pivot 24 fixé sur la base 26. Le mouvement longitudinal de la table 11 par rapport à la plate-forme tournante 34 est imprimé par le moteur pas à pas 12 pour les avances de précision, tandis que les déplacements plus amples de rapprochement et d'éloignement sont exécutés par un piston hydraulique 13 contenu dans la chemise 14.The grinding wheel support 7 is fixed to the table 11 which moves on longitudinal slides provided on the platform 34 which can rotate around a pivot 24 fixed on the base 26. The longitudinal movement of the table 11 relative at the rotating platform 34 is printed by the stepping motor 12 for precision advances, while the larger movements of approach and away are carried out by a hydraulic piston 13 contained in the jacket 14.

La course de ce piston 13 est préférablement exécutée au moyen d'un dispositif spécial à actionnement rapide qui permet de laisser rapidement libre un espace suffisant pour monter et démonter aisément la pièce P à rectifier.The stroke of this piston 13 is preferably carried out by means of a special device with rapid actuation which makes it possible to quickly leave free sufficient space to easily assemble and disassemble the part P to be rectified.

Le dispositif de régénération de la meule rectificatrice est monté sur la partie postérieure de la table 11 derrière la meule rectificatrice 5. Il se compose essentiellement d'une meule de riblage 15 actionnée par un moteur 35. Le dispositif de riblage est fixé sur un chariot longitudinal 16 qui est à son tour soutenu par un chariot transversal 17, ce dernier étant monté roulant sur la table 11.The device for regenerating the grinding wheel is mounted on the rear part of the table 11 behind the wheel rectifier 5. It essentially consists of a lining wheel 15 actuated by a motor 35. The lining device is fixed to a longitudinal carriage 16 which is in turn supported by a transverse carriage 17, the latter being mounted rolling on the table 11.

Le chariot 17 possède un déplacement longitudinal de précision permettant d'enlever à. la meule rectificatrice 5, à chacune des opérations de régénération, une quantité de matériel toujours identique.The carriage 17 has a longitudinal precision movement making it possible to remove. the grinding wheel 5, for each of the regeneration operations, a quantity of material always identical.

Le déplacement longitudinal du chariot 17 est obtenu au moyen d'un moteur pas à pas 21 et d'un réducteur 22 agissant sur une vis à sphères de grande précision 23.The longitudinal displacement of the carriage 17 is obtained by means of a stepping motor 21 and a reduction gear 22 acting on a very precise ball screw 23.

Le déplacement transversal du chariot 16 se fait à l'aide d'un moteur pas à pas.The transverse movement of the carriage 16 is done using a stepping motor.

Les mouvements du chariot longitudinal 16 et du chariot transversal 17 sont commandés par l'extrémité 30 de la vis 19 qui suit le gabarit 18 monté de façon fixe sur la table 11. Ces mouvements font en sorte que la meule diamantée 15 régénère la meule rectificatrice selon la forme désirée. La vis 19 permet de rapprocher au fur et à mesure la meule régénératrice 15 de la meule rectificatrice 5, en compensant ainsi la quantité enlevée chaque fois par la meule régénératrice. La vis-mère qui s'engrène avec la vis 19 est solidaire du moteur 35 qui actionne la meule régénératrice 15.The movements of the longitudinal carriage 16 and the transverse carriage 17 are controlled by the end 30 of the screw 19 which follows the template 18 fixedly mounted on the table 11. These movements cause the diamond wheel 15 to regenerate the grinding wheel according to the desired shape. The screw 19 allows the regenerating wheel 15 to be brought closer and closer to the rectifying wheel 5, thereby compensating for the amount removed each time by the regenerative wheel. The lead screw which meshes with the screw 19 is integral with the motor 35 which actuates the regenerative grinding wheel 15.

Pour exécuter l'opération de rectification, la meule rectificatrice est rapidement rapprochée à l'aide du dispositif d'avance rapide jusqu'à quelques centièmes de m. de la pièce; après quoi on fait intervenir le moteur pas à pas 8 qui fait avancer la meule en lui faisant tout d'abord faire un cycle de dégrosissage et ensuite un cycle de finissage, carme précédemment établi jusqu'à atteindre la cote finale qui est mesurée par la fourche d'auto-calibrage. Arrivés à ce point, on a automatiquement le retour de la meule à sa position de départ, tout d'abord au moyen du moteur pas à pas, ensuite par l'éloignement hydraulique rapide.To execute the grinding operation, the grinding wheel trice is quickly brought closer using the rapid advance device up to a few hundredths of m. of the room; after which the stepping motor 8 is brought into play, which advances the grinding wheel by first making it do a roughing cycle and then a finishing cycle, as previously established, until reaching the final dimension which is measured by the self-calibration fork. At this point, the wheel is automatically returned to its starting position, first by means of the stepping motor, then by rapid hydraulic removal.

Après la rectification d'un certain nombre de pièces (de 10 à 15) il est nécessaire de régénérer la meule rectificatrice 5 à l'aide de la meule de riblage 15. Dans ce but, on fait avancer le chariot 17 de quelques centièmes de mn. par rapport au moteur pas à pas 21, au réducteur 22 et à la vis de précision 23.After the rectification of a certain number of parts (from 10 to 15) it is necessary to regenerate the grinding wheel 5 using the grinding wheel 15. For this purpose, the carriage 17 is advanced by a few hundredths of min. with respect to the stepping motor 21, the reduction gear 22 and the precision screw 23.

A la fin de l'opération de régénération, la meule rectificatrice 5 retourne automatiquement à sa position initiale, prête à rectifier un autre lot de pièces.At the end of the regeneration operation, the grinding wheel 5 automatically returns to its initial position, ready to grind another batch of parts.

La machine s'arrête automatiquement quand, à force d'être régénérée, la meule diminue de diamêtre si bien qu'elle peut devenir dangereuse.The machine stops automatically when, due to regeneration, the wheel decreases in diameter so that it can become dangerous.

Lorsqu'on désire rectifier des pièces ayant des surfaces planes perpendiculaires à l'axe de la pièce, on doit faire tourner la plate-forme 34 autour du pivot 24 en direction des flèches A de la Figure 2, jusqu'à ce qu'une surface de la meule se trouve en position perpendiculaire par rapport à l'axe du coulisseuau 3 portant la pointe 31 et la contre- pointe 32, ce qui revient à dire perpendiculairement à l'axe de la pièce P.When it is desired to rectify parts having flat surfaces perpendicular to the axis of the part, the platform 34 must be rotated around the pivot 24 in the direction of the arrows A in FIG. 2, until a surface of the grinding wheel is in position perpendicular to the axis of the slide 3 carrying the tip 31 and the tailstock 32, which amounts to saying perpendicular to the axis of the part P.

Toutes les opérations de rectification et de régénération sont réalisées sous d'abondants jets d'eau de refroidissement; c'est pourquoi la machine est protégée à l'aide de protections amovibles 25 et sa base 26 est construite de façon à pouvoir aisément recueillir, après un filtrage soigneux, tout le liquide qui est ensuite récupéré.All rectification and regeneration operations are carried out under abundant jets of cooling water; this is why the machine is protected using removable protections 25 and its base 26 is constructed so as to be able to easily collect, after careful filtering, all the liquid which is then recovered.

Claims (2)

1. Rectifieuse où la meule de rectification (5) et tous ses moyens d'actionnement sent montés sur une plate-forme (34) pouvant tourner autour d'un pivot (24), la distance entre ce pivot et l'axe (X-X) de la pièce (P) étant supérieure ou du moins égale au diamètre maximm de la meule de rectification (5), le moyen de dressage (15) étant monté sur une table (11) sur laquelle est aussi montée la meule rectificatrice (5) caractérisée par le fait que le moyen de dressage est formé d'une seule meule diamantée.1. Grinding machine where the grinding wheel (5) and all of its actuation means are mounted on a platform (34) which can rotate around a pivot (24), the distance between this pivot and the axis (XX ) of the part (P) being greater than or at least equal to the maximum diameter of the grinding wheel (5), the dressing means (15) being mounted on a table (11) on which is also mounted the grinding wheel (5 ) characterized in that the dressing means is formed of a single diamond wheel. 2. Rectifieuse selon la revendication 1, caractérisée par le fait que la meule de dressage (15) pour effectuer le dressage de la meule de rectification (5) suit le profil d'un gabarit (18) fixé sur la table (11 ).2. Grinding machine according to claim 1, characterized in that the dressing wheel (15) for dressing the grinding wheel (5) follows the profile of a template (18) fixed on the table (11).
EP85103276A 1984-07-17 1985-03-21 Universal grinding machine for mass production Withdrawn EP0169971A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT21927/84A IT1176410B (en) 1984-07-17 1984-07-17 UNIVERSAL GRINDING MACHINE FOR LARGE PRODUCTIONS
IT2192784 1984-07-17

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Publication Number Publication Date
EP0169971A1 true EP0169971A1 (en) 1986-02-05

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EP85103276A Withdrawn EP0169971A1 (en) 1984-07-17 1985-03-21 Universal grinding machine for mass production

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IT (1) IT1176410B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000045992A1 (en) * 1999-02-03 2000-08-10 Unova U.K. Limited Angle head grinding method and apparatus
CN101767314B (en) * 2010-01-28 2011-08-31 洛阳轴研科技股份有限公司 Grinding wheel dressing method used for grinding processing of raceway of outer ring of bearing

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1424765A (en) * 1918-03-16 1922-08-08 Pratt & Whitney Co Wheel-dressing mechanism
US2292947A (en) * 1941-07-23 1942-08-11 Norton Co Grinding wheel truing apparatus
US2315104A (en) * 1941-11-12 1943-03-30 Thompson Grinder Co Inclinable grinder spindle
US2600548A (en) * 1946-09-05 1952-06-17 Brown & Sharpe Mfg Grinding wheel truing apparatus
US2699018A (en) * 1951-06-30 1955-01-11 Devilbiss Co Automatic grinding wheel dresser and feed control
US3313285A (en) * 1964-04-27 1967-04-11 Landis Tool Co Impregnated indexing roller for grinding wheel dressers
US4160438A (en) * 1977-02-17 1979-07-10 Toyoda-Koki Kabushiki-Kaisha Profiling apparatus for a disk-like article having a cylindrical face and rounded corners
US4219972A (en) * 1977-10-17 1980-09-02 Seiko Seiki Kabushiki Kaisha Control apparatus for a grinding machine
FR2519282A1 (en) * 1981-12-31 1983-07-08 Gendron Grinder for stepped shafts - uses plate shaped grinder with conical rim providing right angled edge with axial face

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1424765A (en) * 1918-03-16 1922-08-08 Pratt & Whitney Co Wheel-dressing mechanism
US2292947A (en) * 1941-07-23 1942-08-11 Norton Co Grinding wheel truing apparatus
US2315104A (en) * 1941-11-12 1943-03-30 Thompson Grinder Co Inclinable grinder spindle
US2600548A (en) * 1946-09-05 1952-06-17 Brown & Sharpe Mfg Grinding wheel truing apparatus
US2699018A (en) * 1951-06-30 1955-01-11 Devilbiss Co Automatic grinding wheel dresser and feed control
US3313285A (en) * 1964-04-27 1967-04-11 Landis Tool Co Impregnated indexing roller for grinding wheel dressers
US4160438A (en) * 1977-02-17 1979-07-10 Toyoda-Koki Kabushiki-Kaisha Profiling apparatus for a disk-like article having a cylindrical face and rounded corners
US4219972A (en) * 1977-10-17 1980-09-02 Seiko Seiki Kabushiki Kaisha Control apparatus for a grinding machine
FR2519282A1 (en) * 1981-12-31 1983-07-08 Gendron Grinder for stepped shafts - uses plate shaped grinder with conical rim providing right angled edge with axial face

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000045992A1 (en) * 1999-02-03 2000-08-10 Unova U.K. Limited Angle head grinding method and apparatus
US6991519B2 (en) 1999-02-03 2006-01-31 Unova Uk Limited Angle head grinding method
CN101767314B (en) * 2010-01-28 2011-08-31 洛阳轴研科技股份有限公司 Grinding wheel dressing method used for grinding processing of raceway of outer ring of bearing

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Publication number Publication date
IT1176410B (en) 1987-08-18
IT8421927A0 (en) 1984-07-17
IT8421927A1 (en) 1986-01-17

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