EP0680806B1 - Tooling for belt finishing of cylindrical bearings with diameter control of the bearings - Google Patents
Tooling for belt finishing of cylindrical bearings with diameter control of the bearings Download PDFInfo
- Publication number
- EP0680806B1 EP0680806B1 EP95400993A EP95400993A EP0680806B1 EP 0680806 B1 EP0680806 B1 EP 0680806B1 EP 95400993 A EP95400993 A EP 95400993A EP 95400993 A EP95400993 A EP 95400993A EP 0680806 B1 EP0680806 B1 EP 0680806B1
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- EP
- European Patent Office
- Prior art keywords
- machined
- arm
- bearing surface
- shoe
- axis
- 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
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Classifications
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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
- 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
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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
- 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
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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
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
- B24B49/04—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
Definitions
- the present invention relates to a tool for grooming of cylindrical surfaces on parts, in particular pins and crank pins on crankshafts, with diameter control litters.
- Grooming machines known by the patent application EP-A-0 366 506 by the applicant include, for each litter to be machined on a workpiece, a pivoting arm movable vertically, and three mounted sanding pad pads, a first one upper middle position on the arm and the other two in position low lateral on two jaws articulated on the arm and coupled so that they can be pressed together, in such a way that when tightening against the working surface, the three pads are arranged substantially at the three angles of an equilateral triangle.
- the tape application pads abrasive have a circular arc application surface spanning a relatively small angle, usually less than 30 °. These tools work well for the condition of staff surfaces.
- the honing and grooming machines using stones or pads extending over angles of more than 30 ° allow, by their enveloping form to better compensate for defects in shape (ovalization, runout, etc.) and defects in rectitude of the parts.
- control gauge mounted on one of the jaws and comprising two opposite sensors, aligned, to measure the diameter of the span, during the machining of the latter, and possibly order machining stops when this diameter reaches a value predetermined.
- the Applicant is not aware of the use of a diameter control device on a grooming tool comprising three enveloping pads arranged in a triangle, the first on one arm and the other two on two jaws articulated on said arms.
- the present invention relates to a tool for the application of abrasive belt against cylindrical surfaces to be machined on parts, including crankshaft journals and crank pins, with checking the diameter of the spans, this tool comprising pads enveloping to meet stringent requirements regarding the absence of defects in form, the straightness and the precision of the spans.
- the tool object of the invention is intended for the application of abrasive belt on a machine for grooming spans cylindrical on parts, in particular trunnions and crank pins on crankshafts, comprising for each bearing to machine an arm swivel and movable vertically, and three tape application pads abrasive mounted first in the middle position on the arm and both others in low lateral position on two jaws articulated on the arms and coupled so that they can be tightened against each other, in such a way that when tightening against the work surface, the three pads are arranged substantially at the angles of a triangle equilateral.
- the arm carries a first pad having a surface abrasive band application concave extending over an angle greater than 90 ° and less than 180 °.
- the arm also carries a caliber control with two opposite sensors aligned horizontally, located below the two angular ends of the first shoe, to measure the diameter of the seat to be machined.
- Each of the two jaws wears a second pad having a concave application surface an abrasive strip extending over an angle slightly less than 90 °, in such a way that when clamped around the work surface, the three pads cover the surface to be machined at least 270 °, the first above and the two seconds below the two caliber sensors located on the same diameter of the span.
- the first shoe and the caliber are fixed to a support mounted on the arm with limited mobility in translation horizontal perpendicular to the axis of the seat to be machined.
- Both second pads can be mounted on their jaws with a limited mobility in oscillation around axes parallel to the axis of the scope.
- the support of the first skate and the caliber is advantageously mounted on the arm also with mobility limited in oscillation around an axis perpendicular to the axis of the worn to machine.
- Said axis of articulation of the support preferably passes to short distance above the axis of the seat to be machined.
- the grooming and control according to the invention is used on a machine according to the Patent application EP-A-O 366 506 for the abrasive machining of cylindrical bearings on parts, especially for machining by grooming of crankshaft journals and crankpins.
- an arm 1 mounted freely pivoting around a horizontal axis on a non-sliding shown moving vertically.
- the arm 1 carries two jaws 2a, 2b articulated by horizontal axes 3a and 3b on the arm 1 and coupled by toothed segments 4a, 4b so that they can be pressed against each other by synchronous pivoting in opposition by relative to the arm 1, under the action of a common actuating cylinder 5.
- a first pad 7 is mounted in the upper middle position on arm 1 and two second pads 8a and 8b are mounted in the low lateral position on the two jaws 2a and 2b in such a way that when, after lowering of the arm 1 to bring the first skate 7 on the scope to be machined, the three pads 7, 8a and 8b are tightened, under the action of the jack 5, against the scope 6, for the application against this scope 6 an abrasive strip 9, the three pads 7, 8a and 8b are arranged substantially at the three angles of an equilateral triangle. Because of balancing the mass of arm 1 by a non-balancing means shown, for example a jack with controlled supply pressure, the three pads are thus applied with substantially pressure uniform against the bearing surface 6 to be machined.
- the first pad 7 presents, for the application of the strip abrasive 9 against the surface 6 to be machined, a concave surface of application extending over an angle slightly less than 180 °, in the occurrence on an angle of about 160 °.
- the two second pads 8a and 8b have, for the application of the same abrasive strip 9 against the scope 6, each a concave application surface extending over an angle slightly less than 90 °, in this case on an angle about 70 °.
- each second skate 8a, 8b covers approximately a lower quarter of the scope 6, two diametrically opposite free spaces remaining between each of the two angular ends of the upper shoe 7 and the corresponding upper angular end of each shoe lower 8a, 8b.
- the two lower pads 8a, 8b are mounted on the jaw 2a, 2b respectively by pivot axes 12a, 12b parallel to the axis of the scope 6, so as to present, as indicated by arrows 11a and 11b, limited mobility in oscillation around the axes 12a, 12b.
- the upper shoe 7 is mounted on a U-shaped support 13 overturned whose two arms 14a, 14b carry, at their end lower, each a pin 15a, 15b, the two pins 15a, 15b being aligned horizontally on an axis perpendicular to the axis of the scope 6 and being pivotally mounted and movable in translation according to their axis on the lower ends of a yoke 17 fixed to the arm 1.
- An inverted U-shaped control gauge 16 comprising two opposite aligned sensors, is also fixed to the support 13 carrying the upper shoe 7, so that its two sensors, when the three jaws 7, 8a and 8b are clamped against the bearing surface 6 to be machined, are located on a horizontal line corresponding to the diameter of the scope 6 and thus measure the diameter of the latter.
- the abrasive strip 9 arrives between the two lower pads 8a, 8b, for example passes between the pad 8b and the bearing surface 6, then departs of range 6 to bypass one of the 16 gauge sensors, pass on a return roller, returns to the bearing 6 to pass between the upper shoe 7 and the bearing 6, then deviates again from the reach 6 and passes over a deflection roller, to bypass the other 16 gauge sensor, then returns to range 6 to switch between pad 8a and the bearing surface 6, and finally comes out between the two pads 8a and 8b.
- the upper shoe 7 could extend over an angle lower, but greater than 90 ° and preferably greater than 120 °
- the lower pads 8a, 8b could each extend over an angle lower or more important, but preferably between about 60 ° and 80 °, so that the three pads 7, 8a and 8b wrap staff 6 together as completely as possible, preferably on an angle equal to or greater than 270 °.
- the sensors of the measurement gauge 16 can, within the framework of the invention, be constituted by sensors of known type, by example of electronic or pneumatic sensors.
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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)
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Description
La présente invention se rapporte à un outillage pour le toilage de portées cylindriques sur des pièces, notamment des tourillons et manetons sur des vilebrequins, avec contrôle de diamètre des portées.The present invention relates to a tool for grooming of cylindrical surfaces on parts, in particular pins and crank pins on crankshafts, with diameter control litters.
Des machines de toilage connues par la demande de brevet EP-A-0 366 506 de la demanderesse comprennent, pour chaque portée à usiner sur une pièce, un bras pivotant et mobile verticalement, et trois patins d'application de bande abrasive montés, un premier en position médiane haute sur le bras et les deux autres en position latérale basse sur deux mâchoires articulées sur le bras et couplées de manière à pouvoir être serrées l'une contre l'autre, de telle manière que lors du serrage contre la portée à usiner, les trois patins soient disposés sensiblement aux trois angles d'un triangle équilatéral.Grooming machines known by the patent application EP-A-0 366 506 by the applicant include, for each litter to be machined on a workpiece, a pivoting arm movable vertically, and three mounted sanding pad pads, a first one upper middle position on the arm and the other two in position low lateral on two jaws articulated on the arm and coupled so that they can be pressed together, in such a way that when tightening against the working surface, the three pads are arranged substantially at the three angles of an equilateral triangle.
Sur ces machines connues, les patins d'application de bande abrasive présentent une surface d'application en arc de cercle s'étendant sur un angle relativement faible, généralement inférieur à 30°. Ces outils donnent de bons résultats en ce qui concerne l'état des surfaces des portées.On these known machines, the tape application pads abrasive have a circular arc application surface spanning a relatively small angle, usually less than 30 °. These tools work well for the condition of staff surfaces.
Il est par ailleurs connu d'utiliser, pour l'usinage par pierrage de portées cylindrique sur les pièces, des pierres dont la surface en arc de cercle, en contact avec la portée à usiner, s'étend sur un angle pouvant aller jusqu'à 60°. Toutefois, ces pierres, lors de l'usinage, subissent une usure asymétrique qui fait qu'en réalité, c'est sur un angle nettement inférieur à 60° que les pierres exercent leur pression et donc leur effet d'usinage par pierrage sur la portée à usiner. It is also known to use, for machining by honing cylindrical spans on the pieces, stones whose arc surface of circle, in contact with the surface to be machined, extends over an angle up to 60 °. However, these stones, during machining, undergo asymmetrical wear which makes that in reality, it is on a angle significantly less than 60 ° as the stones exert their pressure and therefore their effect of machining by honing on the surface to be machined.
Par contre, les machines de pierrage et de toilage utilisant des pierres ou des patins s'étendant sur des angles de plus de 30° permettent, par leur forme enveloppante de mieux compenser des défauts de forme (ovalisation, faux-rond, etc.) et les défauts de rectitude des parties.On the other hand, the honing and grooming machines using stones or pads extending over angles of more than 30 ° allow, by their enveloping form to better compensate for defects in shape (ovalization, runout, etc.) and defects in rectitude of the parts.
Enfin, on connaít également des machines d'usinage par toilage sur lesquelles les outils en contact avec chaque portée cylindrique à usiner comprennent deux patins opposés d'application de bande abrasive, ces deux patins étant disposés sur deux mâchoires d'une pince et pouvant avoir chacun une surface d'application en arc de cercle s'étendant sur presque 180°. L'inconvénient de ces patins connus utilisés par paire consiste dans une mauvaise répartition de la pression d'application. En effet, cette pression est inévitablement concentrée dans la partie médiane de la longueur de la surface en arc de cercle de chacun des deux patins opposés.Finally, we also know of machining machines by canvas on which the tools in contact with each litter cylindrical to be machined include two opposite pads for applying abrasive belt, these two pads being arranged on two jaws pliers and each having an arcuate application surface of circle extending over almost 180 °. The downside of these skates known used by pair consists in a poor distribution of the application pressure. Indeed, this pressure is inevitably concentrated in the middle part of the length of the arc surface of circle of each of the two opposite pads.
Sur les machines de toilage à deux patins d'application opposés, il est par ailleurs connu d'associer à l'un des deux patins un calibre de contrôle monté sur l'une des mâchoires et comprenant deux capteurs opposés, alignés, pour mesurer le diamètre de la portée, pendant l'usinage de cette dernière, et éventuellement commander l'arrêt de l'usinage lorsque ce diamètre atteint une valeur prédéterminée.On grooming machines with two application pads opposite, it is also known to associate with one of the two pads a control gauge mounted on one of the jaws and comprising two opposite sensors, aligned, to measure the diameter of the span, during the machining of the latter, and possibly order machining stops when this diameter reaches a value predetermined.
La demanderesse n'a pas connaissance de l'utilisation d'un dispositif de contrôle de diamètre sur un outillage de toilage comprenant trois patins enveloppants disposés en triangle, le premier sur un bras et les deux autres sur deux mâchoires articulées sur ledit bras.The Applicant is not aware of the use of a diameter control device on a grooming tool comprising three enveloping pads arranged in a triangle, the first on one arm and the other two on two jaws articulated on said arms.
La présente invention vise un outillage pour l'application de bande abrasive contre des portées cylindriques à usiner sur des pièces, notamment les tourillons et les manetons de vilebrequins, avec contrôle du diamètre des portées, cet outillage comprenant des patins enveloppants pour répondre à des exigences sévères en ce qui concerne l'absence de défauts de forme, la rectitude et la précision des portées.The present invention relates to a tool for the application of abrasive belt against cylindrical surfaces to be machined on parts, including crankshaft journals and crank pins, with checking the diameter of the spans, this tool comprising pads enveloping to meet stringent requirements regarding the absence of defects in form, the straightness and the precision of the spans.
L'outillage objet de l'invention est destiné à l'application de bande abrasive sur une machine d'usinage par toilage de portées cylindriques sur des pièces, notamment des tourillons et manetons sur des vilebrequins, comprenant pour chaque portée à usiner un bras pivotant et mobile verticalement, et trois patins d'application de bande abrasive montés un premier en position médiane sur le bras et les deux autres en position latérale basse sur deux mâchoires articulées sur le bras et couplées de manière à pouvoir être serrées l'une contre l'autre, de telle manière que lors du serrage contre la portée à usiner, les trois patins soient disposés sensiblement aux angles d'un triangle équilatéral. Le bras porte un premier patin présentant une surface concave d'application de bande abrasive s'étendant sur un angle supérieur à 90° et inférieur à 180°. Le bras porte, en outre, un calibre de contrôle avec deux capteurs opposés alignés horizontalement, situés en dessous des deux extrémités angulaires du premier patin, pour mesurer le diamètre de la portée à usiner. Chacune des deux mâchoires porte un deuxième patin présentant une surface concave d'application de bande abrasive s'étendant sur un angle légèrement inférieur à 90°, de telle manière qu'à l'état serré autour de la portée à usiner, les trois patins enveloppent la portée à usiner sur au moins 270°, le premier au-dessus et les deux seconds en dessous des deux capteurs du calibre situés sur un même diamètre de la portée.The tool object of the invention is intended for the application of abrasive belt on a machine for grooming spans cylindrical on parts, in particular trunnions and crank pins on crankshafts, comprising for each bearing to machine an arm swivel and movable vertically, and three tape application pads abrasive mounted first in the middle position on the arm and both others in low lateral position on two jaws articulated on the arms and coupled so that they can be tightened against each other, in such a way that when tightening against the work surface, the three pads are arranged substantially at the angles of a triangle equilateral. The arm carries a first pad having a surface abrasive band application concave extending over an angle greater than 90 ° and less than 180 °. The arm also carries a caliber control with two opposite sensors aligned horizontally, located below the two angular ends of the first shoe, to measure the diameter of the seat to be machined. Each of the two jaws wears a second pad having a concave application surface an abrasive strip extending over an angle slightly less than 90 °, in such a way that when clamped around the work surface, the three pads cover the surface to be machined at least 270 °, the first above and the two seconds below the two caliber sensors located on the same diameter of the span.
De préférence, le premier patin et le calibre sont fixés à un support monté sur le bras avec une mobilité limitée en translation horizontale perpendiculairement à l'axe de la portée à usiner. Les deux seconds patins peuvent être montés sur leurs mâchoires avec une mobilité limitée en oscillation autour d'axes parallèles à l'axe de la portée.Preferably, the first shoe and the caliber are fixed to a support mounted on the arm with limited mobility in translation horizontal perpendicular to the axis of the seat to be machined. Both second pads can be mounted on their jaws with a limited mobility in oscillation around axes parallel to the axis of the scope.
Par ailleurs, le support du premier patin et du calibre est avantageusement monté sur le bras également avec une mobilité limitée en oscillation autour d'un axe perpendiculaire à l'axe de la portée à usiner.In addition, the support of the first skate and the caliber is advantageously mounted on the arm also with mobility limited in oscillation around an axis perpendicular to the axis of the worn to machine.
Ledit axe d'articulation du support passe de préférence à faible distance au-dessus de l'axe de la portée à usiner.Said axis of articulation of the support preferably passes to short distance above the axis of the seat to be machined.
En se référant au dessin schématique annexé, on va décrire ci-après plus en détail un mode de réalisation illustratif et non limitatif d'un outillage conforme à l'invention. La figure unique du dessin est une vue d'ensemble de la partie inférieure d'un bras de toilage portant l'outillage de toilage et de contrôle conforme à l'invention.Referring to the attached schematic drawing, we will describe below in more detail an illustrative embodiment and not limiting of a tool in accordance with the invention. The unique figure of drawing is an overview of the lower part of an arm grooming carrying the grooming and control tools in accordance with the invention.
Tel qu'illustré par le dessin, l'outillage de toilage et de contrôle conforme à l'invention est utilisé sur une machine suivant la demande de brevet EP-A-O 366 506 pour l'usinage par abrasif de portées cylindriques sur des pièces, notamment pour l'usinage par toilage des tourillons et manetons de vilebrequins.As illustrated by the drawing, the grooming and control according to the invention is used on a machine according to the Patent application EP-A-O 366 506 for the abrasive machining of cylindrical bearings on parts, especially for machining by grooming of crankshaft journals and crankpins.
On reconnaít sur la figure unique du dessin un bras 1 monté
librement pivotant autour d'un axe horizontal sur un coulisseau non
représenté mobile verticalement. Le bras 1 porte deux mâchoires 2a,
2b articulées par des axes horizontaux 3a et 3b sur le bras 1 et
couplées par des segments dentés 4a, 4b de manière à pouvoir être
serrées l'une contre l'autre par pivotement synchrone en opposition par
rapport au bras 1, sous l'action d'un vérin de manoeuvre 5 commun.We recognize in the single figure of the drawing an arm 1 mounted
freely pivoting around a horizontal axis on a non-sliding
shown moving vertically. The arm 1 carries two
En vue de l'usinage par toilage d'une portée cylindrique 6,
par exemple d'un maneton ou tourillon d'un vilebrequin, un premier
patin 7 est monté en position médiane haute sur le bras 1 et deux
seconds patins 8a et 8b sont montés en position latérale basse sur les
deux mâchoires 2a et 2b de telle manière que lorsque, après
abaissement du bras 1 pour faire porter le premier patin 7 sur la portée
à usiner, les trois patins 7, 8a et 8b sont serrés, sous l'action du vérin
5, contre la portée 6, en vue de l'application contre cette portée 6
d'une bande abrasive 9, les trois patins 7, 8a et 8b soient disposés
sensiblement aux trois angles d'un triangle équilatéral. Du fait de
l'équilibrage de la masse du bras 1 par un moyen d'équilibrage non
représenté, par exemple un vérin à pression d'alimentation contrôlée,
les trois patins sont ainsi appliqués avec une pression sensiblement
uniforme contre la portée 6 à usiner.With a view to machining a
Le premier patin 7 présente, pour l'application de la bande
abrasive 9 contre la portée 6 à usiner, une surface concave
d'application s'étendant sur un angle légèrement inférieur à 180°, en
l'occurence sur un angle d'environ 160°. Les deux seconds patins 8a et
8b présentent, pour l'application de la même bande abrasive 9 contre
la portée 6, chacun une surface concave d'application s'étendant sur
un angle légèrement inférieur à 90°, en l'occurence sur un angle
d'environ 70°. A l'état serré des patins 7, 8a et 8b, le patin 7
enveloppe à peu près la moitié supérieure de la portée 6 et chaque
second patin 8a, 8b enveloppe à peu près un quart inférieur de la
portée 6, deux espaces libres diamètralement opposés subsistant entre
chacune des deux extrémités angulaires du patin supérieur 7 et
l'extrémité angulaire supérieure correspondante de chaque patin
inférieur 8a, 8b.The
Les deux patins inférieurs 8a, 8b sont montés sur la mâchoire
2a, 2b respective par des axes de pivotement 12a, 12b parallèles à
l'axe de la portée 6, de manière à présenter, comme indiqué par des
flèches 11a et 11b, une mobilité limitée en oscillation autour des axes
12a,12b.The two
Le patin supérieur 7 est monté sur un support 13 en U
renversé dont les deux bras 14a, 14b portent, à leur extrémité
inférieure, chacun un tourillon 15a, 15b, les deux tourillons 15a, 15b
étant alignés horizontalement sur un axe perpendiculaire à l'axe de la
portée 6 et étant montés pivotants et mobiles en translation suivant
leur axe sur les extrémité inférieures d'une chape 17 fixée au bras 1.The
Un calibre de contrôle 16 en U renversé, comportant deux
capteurs opposés alignés, est également fixé au support 13 portant le
patin supérieur 7, de telle manière que ses deux capteurs, lorsque les
trois mâchoires 7, 8a et 8b sont serrées contre la portée 6 à usiner,
soient situés sur une ligne horizontale correspondant au diamètre de la
portée 6 et mesurent ainsi le diamètre de cette dernière.An inverted U-shaped control gauge 16, comprising two
opposite aligned sensors, is also fixed to the
La bande abrasive 9 arrive entre les deux patins inférieurs 8a,
8b, passe par exemple entre le patin 8b et la portée 6, s'écarte ensuite
de la portée 6 pour contourner l'un des capteurs du calibre 16, passe
sur un galet de renvoi, revient vers la portée 6 pour passer entre le
patin supérieur 7 et la portée 6, s'écarte ensuite de nouveau de la
portée 6 et passe sur un galet de renvoi, pour contourner l'autre
capteur du calibre 16, revient ensuite à la portée 6 pour passer entre le
patin 8a et la portée 6, et ressort enfin entre les deux patins 8a et 8b.The
Les deux tourillons 15a et 15b qui permettent au support 13
et par conséquent au patin supérieur 7 et au calibre de contrôle 16 tous
deux montés sur le support 13, une mobilité limitée en translation
horizontale perpendiculairement à l'axe de la portée 6 (flèche 10) et
une mobilité limitée en oscillation autour de leur axe qui est
perpendiculaire à l'axe de la portée 6, sont décalés à faible distance
au-dessus de l'axe des capteurs du calibre 16, lequel, lorsque patins 7,
8a et 8b sont serrés autour de la portée 6, est confondu avec une ligne
diamètrale horizontale de la portée 6.The two
Il va de soi que le mode de réalisation représenté et décrit n'a été donnée qu'à titre d'exemple illustratif et non limitatif et que de nombreuses modifications et variantes sont possibles dans le cadre de l'invention, tel que defini par les revendications.It goes without saying that the embodiment shown and described does not has been given as an illustrative and nonlimiting example and that many modifications and variants are possible within the framework of the invention, as defined by the claims.
Ainsi, le patin supérieur 7 pourrait s'étendre sur un angle
plus faible, mais supérieur à 90° et de préférence supérieur à 120°, et
les patins inférieurs 8a, 8b pourraient s'étendre chacun sur un angle
plus faible ou plus important, mais de préférence compris entre
environ 60° et 80°, de manière que les trois patins 7, 8a et 8b
enveloppent ensemble la portée 6 le plus complètement possible, de
préférence sur un angle égal ou supérieur à 270°.Thus, the
Les capteurs du calibre de mesure 16 peuvent, dans le cadre de l'invention, être constitués par des capteurs de type connu, par exemple des capteurs électroniques ou pneumatiques.The sensors of the measurement gauge 16 can, within the framework of the invention, be constituted by sensors of known type, by example of electronic or pneumatic sensors.
Claims (7)
- Tooling for applying an abrasive belt on a machine for abrasive belt machining of cylindrical bearing surfaces on parts, especially journals and crankpins of crankshafts, said tooling comprising, for each bearing surface (6) to be machined, a pivoting and vertically mobile arm (1) and three abrasive belt (7,8) application shoes a first of which (7) is mounted in a top median position on said arm (1) and the other two of which (8) are mounted in a bottom lateral position on two jaws (2a, 2b) articulated to said arm and coupled together in such manner that they can be clamped together, whereby when clamped against said bearing surface (6) to be machined said three shoes are disposed substantially at the three corners of an equilateral triangle, charactrized by the fact that the tooling said arm (1) carries a first shoe (7) having a concave abrasive belt application surface subtending an angle greater than 90° and less than 180° and a gauge (16) with two opposed and horizontally aligned sensors below two circumferential ends of said first shoe to measure the diameter of said bearing surface and each jaw (2a,2b) carries a second shoe (8a, 8b) having a concave abrasive belt application surface subtenting an angle slightly less than 90° whereby when clamped around said bearing surface to be machined said three shoes together envelope said bearing surface to be machined over an angle of at least 270° , the first above and the second two below said two sensors of said gauge which are disposed on a common diameter of said bearing surface.
- Tooling according to claim 1, characterized by the fact that said first shoe (7) has an abrasive belt application surface subtending an angle greater than 120° and preferably of approximately 160°.
- Tooling according to claims 1 or 2, characterized by the fact that each second shoe (8a,8b) has an abrasive belt application surface subtending an angle between 60° and 80° and preferably of approximately 70°.
- Tooling according to any one of claims 1 to 3 characterized by the fact that said first shoe (7) and said gauge (16) are fixed to a support (13) mounted on said arm (1) with limited freedom of movement in horizontal translation perpendicular to the axis of said bearing surface to be machined and said two second shoes (8a,8b) are mounted on said jaws (2a,2b) with limited freedom of movement to oscillate about axes parallel to said axis of said bearing surface to be machined.
- Tooling according to claim 4 characterized by the fact that said support (13) carrying said first shoe (7) and said gauge (16) is mounted on said arm (1) with limited freedom of movement to oscillate about an axis perpendicular to said axis of said bearing surface to be machined.
- Tooling according to claim 5 characterized by the fact that said axis of oscillation of said support (13) is at small distance below said axis of said bearing surface to be machined.
- Tooling according to claim 6 characterizd by the fact that said support (13) has an inverted U-shape with two arms (14a,14b) carrying at their lower ends aligned journals (15a,15b) mounted to pivot and move in an axial translation on a yoke (17) fixed to said arm (1).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9405449 | 1994-05-04 | ||
| FR9405449A FR2719516B1 (en) | 1994-05-04 | 1994-05-04 | Tools for the grooming of cylindrical spans with diameter control of spans. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0680806A1 EP0680806A1 (en) | 1995-11-08 |
| EP0680806B1 true EP0680806B1 (en) | 1999-10-27 |
Family
ID=9462848
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95400993A Expired - Lifetime EP0680806B1 (en) | 1994-05-04 | 1995-05-02 | Tooling for belt finishing of cylindrical bearings with diameter control of the bearings |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5651719A (en) |
| EP (1) | EP0680806B1 (en) |
| JP (1) | JPH08150555A (en) |
| DE (1) | DE69512956T2 (en) |
| ES (1) | ES2138709T3 (en) |
| FR (1) | FR2719516B1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2820059B2 (en) * | 1995-03-24 | 1998-11-05 | トヨタ自動車株式会社 | Polishing equipment |
| JP3661712B2 (en) * | 1995-11-13 | 2005-06-22 | トヨタ自動車株式会社 | Lapping machine |
| DE19619825A1 (en) * | 1996-05-16 | 1997-11-20 | Naxos Union Schleifmittel | Device for microfinishing crankshafts or similar workpieces |
| FR2758756B1 (en) * | 1997-01-30 | 1999-02-26 | Procede Machines Speciales Spm | MACHINE ASSEMBLY BY ABRASIVE BELT OF A CYLINDRICAL RANGE OF A WORKPIECE |
| US6309287B2 (en) | 1998-01-15 | 2001-10-30 | Ford Global Technologies | Cam micro-finishing tool |
| JPH11285958A (en) | 1998-04-03 | 1999-10-19 | Toyota Motor Corp | Polishing device |
| EP1053826A3 (en) * | 1999-05-15 | 2003-02-05 | Supfina Grieshaber GmbH & Co. KG | Apparatus for belt finishing of curved workpiece surfaces |
| FR2808463B1 (en) * | 2000-05-04 | 2002-09-13 | Procedes Et Machines Speciales | ABRASIVE TAPE MACHINE FOR CYLINDRICAL DOORS ON PARTS |
| FR2835460B1 (en) * | 2002-02-05 | 2004-07-23 | Procedes Et Machines Speciales | METHOD AND DEVICE FOR MACHINING BY ABRASIVE BELT OF A SURFACE ON A WORKPIECE, PARTICULARLY FOR THE SURFACE OF A CAM SURFACE ON A CAMSHAFT |
| FR2872726B1 (en) * | 2004-07-08 | 2007-11-23 | Societes Des Procedes Et Machi | SUPERFINITION DEVICE AND ASSOCIATED METHOD |
| DE102007051047B4 (en) * | 2007-10-16 | 2023-03-23 | Nagel Maschinen- Und Werkzeugfabrik Gmbh | Press-on device for finishing belt and device and method for finishing peripheral surfaces on cylindrical workpiece sections |
| WO2014117422A1 (en) * | 2013-02-01 | 2014-08-07 | Huang Xuyang | Polishing machine hinge structure and synchronous double-polishing machine |
| DE102014208319B4 (en) * | 2014-05-05 | 2021-05-06 | Supfina Grieshaber Gmbh & Co. Kg | Tape finishing device and method of operating a tape finishing device |
| CN104802087A (en) * | 2015-04-08 | 2015-07-29 | 河南科技大学 | Digital active measuring instrument for grinding processing |
| CN104827398B (en) * | 2015-04-09 | 2017-06-13 | 北京第二机床厂有限公司 | Follow in being ground and follow diameter measuring method and device online |
| DE102015221939B4 (en) * | 2015-11-09 | 2018-10-31 | Supfina Grieshaber Gmbh & Co. Kg | Finishing belt device and method for finish machining a workpiece |
| CN113910024B (en) * | 2021-10-27 | 2023-01-06 | 一汽解放汽车有限公司 | Method for adjusting swing range of active measuring instrument and grinding machine |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1908048A (en) * | 1930-09-02 | 1933-05-09 | Norton Co | Lapping machine |
| US3041792A (en) * | 1959-09-14 | 1962-07-03 | Norton Co | Lapping machine |
| US4682444A (en) * | 1984-05-07 | 1987-07-28 | Industrial Metal Products Corporation | Microfinishing apparatus and method |
| DE8602817U1 (en) * | 1986-02-04 | 1986-04-10 | Maschinenbau Grieshaber GmbH & Co, 77709 Wolfach | Device for machining bearing journals of crankshafts or the like. |
| DE3813484A1 (en) * | 1988-04-21 | 1989-11-02 | Ford Werke Ag | DEVICE FOR FINISHING THE CRANKSHAFT PINS |
| FR2636877B1 (en) * | 1988-09-27 | 1994-07-01 | Procedes Machines Speciales | MACHINE FOR THE ABRASIVE MACHINING OF CYLINDRICAL SURFACES ON PARTS, PARTICULARLY FOR THE MACHINING BY CANVAS OF TRACKS AND CRANKSHAFT ON CRANKSHAFT |
| US5095663A (en) * | 1989-02-07 | 1992-03-17 | Industrial Metal Products Corporation | Size control shoe for microfinishing machine |
| US4993191A (en) * | 1989-04-28 | 1991-02-19 | Industrial Metal Products Corporation | Roller cam microfinishing tooling |
| FR2665526A1 (en) * | 1990-08-02 | 1992-02-07 | Meseltron Sa | DEVICE FOR MEASURING DIAMETERS OF CYLINDRICAL PARTS DURING PROCESSING. |
| US5437125A (en) * | 1992-03-16 | 1995-08-01 | Barton, Ii; Kenneth A. | Surface polishing assembly |
| US5210978A (en) * | 1992-05-26 | 1993-05-18 | J. D. Phillips Corporation | Nose piece retainer for abrasive belt backing shoe |
-
1994
- 1994-05-04 FR FR9405449A patent/FR2719516B1/en not_active Expired - Fee Related
-
1995
- 1995-04-28 US US08/430,365 patent/US5651719A/en not_active Expired - Fee Related
- 1995-05-02 EP EP95400993A patent/EP0680806B1/en not_active Expired - Lifetime
- 1995-05-02 DE DE69512956T patent/DE69512956T2/en not_active Expired - Fee Related
- 1995-05-02 JP JP7108797A patent/JPH08150555A/en active Pending
- 1995-05-02 ES ES95400993T patent/ES2138709T3/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE69512956D1 (en) | 1999-12-02 |
| JPH08150555A (en) | 1996-06-11 |
| DE69512956T2 (en) | 2000-06-21 |
| ES2138709T3 (en) | 2000-01-16 |
| EP0680806A1 (en) | 1995-11-08 |
| FR2719516A1 (en) | 1995-11-10 |
| FR2719516B1 (en) | 1996-07-26 |
| US5651719A (en) | 1997-07-29 |
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