EP0737545B1 - Apparatus for superfinishing both sides of a workpiece - Google Patents
Apparatus for superfinishing both sides of a workpiece Download PDFInfo
- Publication number
- EP0737545B1 EP0737545B1 EP96103740A EP96103740A EP0737545B1 EP 0737545 B1 EP0737545 B1 EP 0737545B1 EP 96103740 A EP96103740 A EP 96103740A EP 96103740 A EP96103740 A EP 96103740A EP 0737545 B1 EP0737545 B1 EP 0737545B1
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- European Patent Office
- Prior art keywords
- workpiece
- spindle
- tool
- orbit
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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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/10—Single-purpose machines or devices
- B24B7/16—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings
- B24B7/17—Single-purpose machines or devices for grinding end-faces, e.g. of gauges, rollers, nuts, piston rings for simultaneously grinding opposite and parallel end faces, e.g. double disc grinders
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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
- B24B11/00—Machines or devices designed for grinding spherical surfaces or parts of spherical surfaces on work; Accessories therefor
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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
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/055—Honing machines or devices; Accessories therefor designed for working plane surfaces
Definitions
- the invention relates to a device for bilateral Finishing or superfinishing disc-shaped Workpieces or workpiece surfaces with planners and / or spherical surface.
- Such devices are e.g. from EP 640 436 A1 or EP 640 437 A1 known.
- EP 640 436 A1 or EP 640 437 A1 known.
- These two publications concern an apparatus and a method for fine grinding a Brake disc ring of a brake disc, the tool via an articulated holder relative to the one to be processed Surface is adjustable.
- the invention has for its object a device of the type mentioned in such a way that with her disc-shaped workpieces optimal on both sides can be edited at the same time.
- the Device for double-sided finishing or Superfinishing of disc-shaped workpieces with plan and / or spherical surfaces means for receiving the Has workpiece and is also provided with a first, rotatable in a first tool spindle recorded tool for editing one surface of the workpiece, the first tool spindle in one first orbital spindle is rotatably received and the axis the first tool spindle and the axis of the first Orbit spindle have a first distance from each other, with a second, rotatable in a second tool spindle recorded tool to edit the other surface of the workpiece, the second tool spindle in one second orbital spindle is rotatably received and the axis the second tool spindle and the axis of the second Orbital spindle have a second distance from each other, and when machining the workpiece both orbital spindles and both tool spindles are rotated simultaneously.
- the means for Picking up the workpiece on its edge surfaces take up.
- the means for receiving the Workpiece a three-point or three-line bearing.
- a another embodiment provides that for holding the Workpiece is used.
- the holding device grips the workpiece on its edge surface, so that the machining end faces are freely accessible.
- the workpiece is countered by the holding means Rotary movements, radial offset and the like. captured.
- the Equipping the device according to the invention and the Workpiece removal can be fully automatic, e.g. over a Turret holder or linearly movable holder respectively.
- the directions of rotation of all Spindles are the same. This has the advantage that within the Spindle drives on devices for reversing the direction of rotation can be dispensed with.
- the Direction of rotation of the first tool spindle and / or first orbital spindle not equal to the direction of rotation of the second Tool spindle and / or the second orbital spindle.
- the control drive is integrated in conventional machines possible without any problems.
- Optimal work results are achieved in that the Axes of the two tools by one different from 0 ° Angles, in particular offset by 90 ° to one another. On this way only grips sections of the workpiece a tool and grip other sections of the Workpiece both tools at the same time. Also takes effect on still other sections of the workpiece none of the Tools so that these sections are cleaned and / or can be cooled.
- the axes of the tools advantageously run around the Center of the workpiece, in particular circular.
- the angular offset of the two tools is preferred when the tools rotate around the center of the Workpiece constant. In this way, be optimal Machining conditions where high Cutting performance, tight tolerances, optimal surface quality etc. are maintained.
- One embodiment provides that the axes of the Tool spindles mechanically or electronically coupled are. With electronic coupling there is also Possibility of being targeted in the process flow can be intervened, e.g. initiated by in-process measuring devices.
- the axes of the Orbital spindles mechanically or electronically with each other be coupled.
- the axes of the orbital spindle one in the horizontal and / or vertical level adjustable from 0 ° have different angles to each other.
- the tool is preferably a cup grinding wheel or a Slip ring. This has the advantage that the on the workpiece essentially engaging surface of the tool constant distance to the axis of rotation of the tool spindle has, compared to a full area on the workpiece adjacent grinding wheel.
- the axes of the first and / or second preferably run Orbital spindle through the center of the workpiece.
- the orbital spindles are coaxial to each other and have a distance from the center of the Workpiece. This configuration means that there are more Variations in the finishing process possible. An additional Variation is achieved in that the speed of rotation at least one of the spindles is variable.
- FIG 1 In the figure 1 are of a not shown Superfinishing machine two orbital spindles 1 and 2 shown. These orbital spindles 1 and 2 have axes 3 and 4 around which they are rotatable. The drive of the orbital spindles 1 and 2 is not shown and is located inside the housing 5.
- Tool spindles 6 and 7 are located on orbital spindles 1 and 2 attached, the axes of rotation 8 and 9 each a distance 10th and 27 to axes 3 and 4 of orbital spindles 1 and 2 exhibit. Coaxial to axes 8 and 9 are on the Tool spindles 6 and 7 tools 11 and 12 attached.
- the Spindles 1 and 2 as well as 6 and 7 as well as tools 11 and 12 rotate in the direction of the through axes 3 and 4 as well as 8 and 9 drawn part-circular arrows.
- the tools 11 and 12 are as cup grinding wheels 13 and 14 trained.
- This Workpiece 17 has parallel end faces, which of the both tools 11 and 12 are machined plane-parallel.
- the workpiece 17 can also have one or two be concave or convex end faces that can be processed using the two tools 11 and 12.
- the two axes 3 and 4 of the orbital spindles 1 and 2 in the horizontal plane and in the vertical plane in the direction of arrows 20 and 21 or angularly adjustable in the opposite direction.
- Axes 3 and 8 or 4 and 9 can intersect or skew to each other.
- FIG 2 the two tools 11 and 12 and that Workpiece 17 shown.
- the center of the workpiece 17 is designated 22. Run through this center 22 axes 3 and 4 of the two orbital spindles 1 and 2.
- the two centers of the workpieces are 11 and 12, whereby through these centers 23 and 24 the axes of rotation 8 and 9 of the tool spindles 6 and 7 run.
- the axes of rotation 8 and 9 of the tool spindles 6 and 7 as well of the tools 11 and 12 move in an orbit 25 or on a circular orbit with a diameter of 26 owns.
- the diameter 26 corresponds approximately to that twice the distance 10 and 27 of the axes 3 and 8 of the Spindles 1 and 6 or axes 4 and 9 of spindles 2 and 7.
- the size of the tool 11 and 12 is chosen so that the Area where both tools 11 and 12 work simultaneously attack both end faces of the workpiece 17, in the essentially in the area of the center 22.
- One-sided loads that may lead to deformation could be avoided in this way.
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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)
Description
Die Erfindung betrifft eine Vorrichtung zum beidseitigen Feinstbearbeiten oder Superfinishen von scheibenförmigen Werkstücken oder Werkstückflächen mit planer und/oder sphärischer Oberfläche.The invention relates to a device for bilateral Finishing or superfinishing disc-shaped Workpieces or workpiece surfaces with planners and / or spherical surface.
Derartige Vorrichtungen sind z.B. aus der EP 640 436 A1 oder EP 640 437 A1 bekannt. Diese beiden Druckschriften betreffen eine Vorrichtung und ein Verfahren zum Feinschleifen eines Bremsscheibenkranzes einer Bremsscheibe, wobei das Werkzeug über eine gelenkige Aufnahme relativ zu der zu bearbeitenden Fläche verstellbar ist.Such devices are e.g. from EP 640 436 A1 or EP 640 437 A1 known. These two publications concern an apparatus and a method for fine grinding a Brake disc ring of a brake disc, the tool via an articulated holder relative to the one to be processed Surface is adjustable.
Aus der US-A- 5 381 630 ist eine weitere derartige Vorrichtung bekannt, die zwei axial gegenüberliegende Werkzeugspindeln und eine Werkstückspindel aufweist, die eine rotierende Orbitalbewegung ausführt. Another such device is known from US-A-5,381,630, the two axially opposite tool spindles and one Has workpiece spindle that performs a rotating orbital movement.
Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art so weiterzubilden, daß mit ihr scheibenförmige Werkstücke optimal auf beiden Seiten gleichzeitig bearbeitet werden können.The invention has for its object a device of the type mentioned in such a way that with her disc-shaped workpieces optimal on both sides can be edited at the same time.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Vorrichtung zum beidseitigen Feinstbearbeiten oder Superfinishen von scheibenförmigen Werkstücken mit planen und/oder sphärischen Oberflächen Mittel zum Aufnehmen des Werkstücks aufweist und außerdem versehen ist mit einem ersten, in einer ersten Werkzeugspindel drehbar aufgenommenen Werkzeug zum Bearbeiten der einen Oberfläche des Werkstücks, wobei die erste Werkzeugspindel in einer ersten Orbitspindel drehbar aufgenommen ist und die Achse der ersten Werkzeugspindel und die Achse der ersten Orbitspindel einen ersten Abstand zueinander aufweisen, mit einem zweiten, in einer zweiten Werkzeugspindel drehbar aufgenommenen Werkzeug zum Bearbeiten der anderen Oberfläche des Werkstücks, wobei die zweite Werkzeugspindel in einer zweiten Orbitspindel drehbar aufgenommen ist und die Achse der zweiten Werkzeugspindel und die Achse der zweiten Orbitspindel einen zweiten Abstand zueinander aufweisen, und bei der Bearbeitung des Werkstücks beide Orbitspindeln und beide Werkzeugspindeln gleichzeitig in Drehbewegung versetzt werden. This object is achieved in that the Device for double-sided finishing or Superfinishing of disc-shaped workpieces with plan and / or spherical surfaces means for receiving the Has workpiece and is also provided with a first, rotatable in a first tool spindle recorded tool for editing one surface of the workpiece, the first tool spindle in one first orbital spindle is rotatably received and the axis the first tool spindle and the axis of the first Orbit spindle have a first distance from each other, with a second, rotatable in a second tool spindle recorded tool to edit the other surface of the workpiece, the second tool spindle in one second orbital spindle is rotatably received and the axis the second tool spindle and the axis of the second Orbital spindle have a second distance from each other, and when machining the workpiece both orbital spindles and both tool spindles are rotated simultaneously.
Unter scheibenförmiger Werkstückfläche werden z.B. Stirnflächen von Bohrungen verstanden, die in einem Gehäuse, z.B. Pumpengehäuse, vorgesehen sind. Nachfolgend wird stets auf scheibenförmige Werkstücke Bezug genommen, wobei dies nicht einschränkend verstanden werden soll.Under disk-shaped workpiece surface, e.g. End faces of bores understood in a housing, e.g. Pump housing are provided. The following is always referred to disc-shaped workpieces, this should not be understood as restrictive.
Mit einer derartigen Vorrichtung können scheibenförmige Werkstücke auf einfache und schnelle Art und Weise bearbeitet werden. Außerdem führt die erfindungsgemäße Vorrichtung zu minimalen Verformungen des Werkstücks, was sich in sehr engen Bearbeitungstoleranzen wiederspiegelt. Mit der erfindungsgemäßen Vorrichtung können verschiedene Schliffbilder, insbesondere kann ein Kreuzschliff erzeugt werden.With such a device can be disc-shaped Workpieces in a simple and quick way to be edited. In addition, the invention Device for minimal deformation of the workpiece what is reflected in very narrow machining tolerances. With the device according to the invention, various Cross-sectional images, in particular a cross-cut can be produced become.
Bei einer Weiterbildung ist vorgesehen, daß die Mittel zum Aufnehmen des Werkstücks dieses an seinen Randflächen aufnehmen. Bevorzugt bilden die Mittel zum Aufnehmen des Werkstücks eine Dreipunkt- oder Dreilinienlagerung. Eine andere Ausführungsform sieht vor, daß zur Halterung des Werkstücks eine Spannzange verwendet wird. Das Haltemittel ergreift das Werkstück an dessen Randfläche, so daß die zu bearbeitenden Stirnseiten frei zugänglich sind. Außerdem wird das Werkstück über die Haltemittel gegen Drehbewegungen, radialen Versatz u.dgl. festgehalten. Die Bestückung der erfindungsgemäßen Vorrichtung und die Werkstückentnahme kann vollautomatisch, z.B. über eine Revolverhalterung oder linear verfahrbare Halterung erfolgen.In a further training it is provided that the means for Picking up the workpiece on its edge surfaces take up. Preferably, the means for receiving the Workpiece a three-point or three-line bearing. A another embodiment provides that for holding the Workpiece is used. The holding device grips the workpiece on its edge surface, so that the machining end faces are freely accessible. Moreover the workpiece is countered by the holding means Rotary movements, radial offset and the like. captured. The Equipping the device according to the invention and the Workpiece removal can be fully automatic, e.g. over a Turret holder or linearly movable holder respectively.
Bei einer besonders bevorzugten Ausführungsform der erfindungsgemäßen Vorrichtung sind die Drehrichtungen aller Spindeln gleich. Dies hat den Vorteil, daß innerhalb der Spindelantriebe auf Vorrichtungen zur Drehrichtungsumkehr verzichtet werden kann.In a particularly preferred embodiment of the device according to the invention are the directions of rotation of all Spindles the same. This has the advantage that within the Spindle drives on devices for reversing the direction of rotation can be dispensed with.
Bei anderen Ausführungsformen ist vorgesehen, daß die Drehrichtungen der ersten Werkzeugspindel und/oder der ersten Orbitspindel ungleich der Drehrichtungen der zweiten Werkzeugspindel und/oder der zweiten Orbitspindel ist. Durch diese Ausgestaltung können eine Vielzahl von unterschiedlichen Superfinishverfahren durchgeführt werden.In other embodiments it is provided that the Direction of rotation of the first tool spindle and / or first orbital spindle not equal to the direction of rotation of the second Tool spindle and / or the second orbital spindle. By this configuration can be a variety of different superfinishing processes.
Dadurch, daß das erste Werkzeug und/oder das zweite Werkzeug, insbesondere hydraulisch, pneumatisch oder über eine NC-Steuerung von beiden Seiten des Werkstücks anstellbar sind, ist ein vollautomatischer Betrieb möglich. Außerdem ist eine Einbindung des Ansteuerantriebs in herkömmliche Maschinen problemlos möglich.Because the first tool and / or the second Tool, especially hydraulic, pneumatic or over NC control from both sides of the workpiece fully automatic operation is possible. In addition, the control drive is integrated in conventional machines possible without any problems.
Optimale Arbeitsergebnisse werden dadurch erzielt, daß die Achsen der beiden Werkzeuge um einen von 0° verschiedenen Winkel, insbesondere um 90° zueinander versetzt sind. Auf diese Weise greift an Abschnitten des Werkstücks jeweils nur ein Werkzeug und greifen an anderen Abschnitten des Werkstücks beide Werkzeuge gleichzeitig an. Außerdem greift an wiederum anderen Abschnitten des Werkstücks keines der Werkzeuge an, so daß diese Abschnitte gereinigt und/oder gekühlt werden können.Optimal work results are achieved in that the Axes of the two tools by one different from 0 ° Angles, in particular offset by 90 ° to one another. On this way only grips sections of the workpiece a tool and grip other sections of the Workpiece both tools at the same time. Also takes effect on still other sections of the workpiece none of the Tools so that these sections are cleaned and / or can be cooled.
Vorteilhaft laufen die Achsen der Werkzeuge um den Mittelpunkt des Werkstücks, insbesondere kreisförmig um. Dabei ist bevorzugt der Winkelversatz der beiden Werkzeuge bei der Umlaufbewegung der Werkzeuge um den Mittelpunkt des Werkstücks konstant. Auf diese Weise werden optimale Bearbeitungsbedingungen, bei denen eine hohe Schnittleistung, enge Toleranzen, optimale Oberflächengüte usw. erzielt werden, beibehalten.The axes of the tools advantageously run around the Center of the workpiece, in particular circular. The angular offset of the two tools is preferred when the tools rotate around the center of the Workpiece constant. In this way, be optimal Machining conditions where high Cutting performance, tight tolerances, optimal surface quality etc. are maintained.
Eine Ausführungsform sieht vor, daß die Achsen der Werkzeugspindeln mechanisch oder elektronisch gekoppelt sind. Bei der elektronischen Kopplung besteht außerdem die Möglichkeit, daß gezielt in den Verfahrensablauf eingegriffen werden kann, z.B. initiiert durch In-Prozeß-Meßvorrichtungen. Außerdem können die Achsen der Orbitspindeln mechanisch oder elektronisch miteinander gekoppelt sein.One embodiment provides that the axes of the Tool spindles mechanically or electronically coupled are. With electronic coupling there is also Possibility of being targeted in the process flow can be intervened, e.g. initiated by in-process measuring devices. In addition, the axes of the Orbital spindles mechanically or electronically with each other be coupled.
Zur Einstellung des Kreuzschliffes und der Ebenheit bzw. sphärischen Geometrie, die konkav oder konvex sein kann, weist die Achse der Werkzeugspindel zur Achse der Orbitspindel einen einstellbaren, von 0° verschiedenen Winkel auf. Auf diese Weise können planparallele Oberflächen bearbeitet werden bzw. kann das Werkstück mit planparallelen Stirnseiten versehen werden oder am Werkstück können eine oder zwei konvex oder konkav gewölbte Stirnflächen bearbeitet werden.For setting the cross-cut and the flatness or spherical geometry that can be concave or convex points the axis of the tool spindle to the axis of the Orbital spindle an adjustable, different from 0 ° Angle on. In this way, plane-parallel surfaces can be machined or the workpiece can be coplanar Can be provided on the end faces or on the workpiece or two convex or concave domed faces to be edited.
Zur Plan- oder Winkeleinstellung der Werkstückflächen können die Achsen der Orbitspindel einen in der horizontalen und/oder vertikalen Ebene einstellbaren, von 0° verschiedenen Winkel zueinander aufweisen.For plan or angle adjustment of the workpiece surfaces the axes of the orbital spindle one in the horizontal and / or vertical level adjustable from 0 ° have different angles to each other.
Bevorzugt ist das Werkzeug eine Topfschleifscheibe oder ein Schleifring. Dies hat den Vorteil, daß die am Werkstück angreifende Fläche des Werkzeugs einen im wesentlichen konstanten Abstand zur Drehachse der Werkzeugspindel aufweist, gegenüber einer vollflächig am Werkstück anliegenden Schleifscheibe.The tool is preferably a cup grinding wheel or a Slip ring. This has the advantage that the on the workpiece essentially engaging surface of the tool constant distance to the axis of rotation of the tool spindle has, compared to a full area on the workpiece adjacent grinding wheel.
Vorzugsweise laufen die Achse der ersten und/oder zweiten Orbitspindel durch den Mittelpunkt des Werkstücks. Bei einer anderen Ausführungsform liegen die Orbitspindeln koaxial zueinander und weisen einen Abstand zum Mittelpunkt des Werkstücks auf. Durch diese Ausgestaltung sind weitere Variationen im Finishverfahren möglich. Eine zusätzliche Variation wird dadurch erzielt, daß die Drehgeschwindigkeit wenigstens einer der Spindeln variabel ist.The axes of the first and / or second preferably run Orbital spindle through the center of the workpiece. At a In another embodiment, the orbital spindles are coaxial to each other and have a distance from the center of the Workpiece. This configuration means that there are more Variations in the finishing process possible. An additional Variation is achieved in that the speed of rotation at least one of the spindles is variable.
Weitere Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung eine Ausführungsform der erfindungsgemäßen Vorrichtung im einzelnen dargestellt ist. In der Zeichnung zeigen:
- Figur 1
- eine perspektivische Ansicht zweier Orbitspindeln mit Werkzeugspindeln, wobei zwischen dem Werkzeug ein Werkstück eingespannt ist; und
Figur 2- eine Ansicht in Richtung des Pfeils II gemäß Figur 1 das Werkstück und die beiden Werkzeuge zeigend.
- Figure 1
- a perspective view of two orbital spindles with tool spindles, a workpiece being clamped between the tool; and
- Figure 2
- a view in the direction of arrow II of Figure 1 showing the workpiece and the two tools.
In der Figur 1 sind von einer nicht näher dargestellten
Superfinishmaschine zwei Orbitspindeln 1 und 2 dargestellt.
Diese Orbitspindeln 1 und 2 besitzen Achsen 3 und 4, um die
sie drehbar sind. Der Antrieb der Orbitspindeln 1 und 2 ist
nicht dargestellt und befindet sich innerhalb der Gehäuse 5. In the figure 1 are of a not shown
Superfinishing machine two
An den Orbitspindeln 1 und 2 sind Werkzeugspindeln 6 und 7
befestigt, deren Drehachsen 8 und 9 jeweils einen Abstand 10
und 27 zu den Achsen 3 und 4 der Orbitspindeln 1 und 2
aufweisen. Koaxial zu den Achsen 8 und 9 sind an den
Werkzeugspindeln 6 und 7 Werkzeuge 11 und 12 befestigt. Die
Spindeln 1 und 2 sowie 6 und 7 sowie die Werkzeuge 11 und 12
drehen sich in Richtung der durch die um die Achsen 3 und 4
sowie 8 und 9 gezeichneten teilkreisbogenförmigen Pfeile.
Die Werkzeuge 11 und 12 sind als Topfschleifscheiben 13 und
14 ausgebildet.
Zwischen den ringförmigen Werkzeugflächen 15 und 16 befindet
sich ein scheibenförmiges Werkstück 17, welches von einem
lediglich durch drei Pfeile 18 angedeuteten Werkstückhalter
an dessen Umfangsrand 19 ortsfest gehalten wird. Dieses
Werkstück 17 besitzt parallele Stirnflächen, die von den
beiden Werkzeugen 11 und 12 planparallel bearbeitet werden.
Das Werkstück 17 kann jedoch auch mit einem oder mit zwei
konkav oder konvex gewölbten Stirnseiten versehen sein, die
über die beiden Werkzeuge 11 und 12 bearbeitet werden.Is located between the
Um eine planparallele Bearbeitung der beiden Stirnflächen
des Werkstücks 17 zu gewährleisten, sind die beiden Achsen 3
und 4 der Orbitspindeln 1 und 2 in der horizontalen Ebene
und in der vertikalen Ebene in Richtung der Pfeile 20 und 21
oder in deren Gegenrichtung winkelmäßig verstellbar. For a plane-parallel machining of the two end faces
of the
Um gewölbte Flächen am Werkstück 17 bearbeiten zu können
bzw. um die Werkstücke auf diese Flächen einstellen zu
können, ist die Achse 8 der ersten Werkzeugspindel 6 zur
Achse 3 der ersten Orbitspindel 1 und entsprechend die Achse
9 der zweiten Werkzeugspindel 7 zur Achse 4 der zweiten
Orbitspindel winkelmäßig einstellbar. Die Achsen 3 und 8
bzw. 4 und 9 können sich schneiden oder windschief
zueinander verlaufen.In order to be able to machine curved surfaces on
In der Figur 2 sind die beiden Werkzeuge 11 und 12 sowie das
Werkstück 17 dargestellt. Der Mittelpunkt des Werkstücks 17
ist mit 22 bezeichnet. Durch diesen Mittelpunkt 22 laufen
auch die Achsen 3 und 4 der beiden Orbitspindeln 1 und 2.
Mit 23 und 24 sind die beiden Mittelpunkte der Werkstücke 11
und 12 bezeichnet, wobei durch diese Mittelpunkte 23 und 24
die Drehachsen 8 und 9 der Werkzeugspindeln 6 und 7 laufen.In Figure 2, the two
Die Drehachsen 8 und 9 der Werkzeugspindeln 6 und 7 sowie
der Werkzeuge 11 und 12 bewegen sich auf einer Umlaufbahn 25
bzw. auf einem kreisförmigen Orbit, der einen Durchmesser 26
besitzt. Der Durchmesser 26 entspricht jeweils etwa dem
zweifachen Abstand 10 bzw. 27 der Achsen 3 und 8 der
Spindeln 1 und 6 bzw. der Achsen 4 und 9 der Spindeln 2 und
7.The axes of
Außerdem ist in Figur 2 erkennbar, daß die beiden Drehachsen
8 und 9 winkelmäßig um einen Winkel α von etwa 90° versetzt
sind, wobei die Drehachse 9 der zweiten Werkzeugspindel 7
der Drehachse 8 der ersten Werkzeugspindel 6 vorauseilt.In addition, it can be seen in Figure 2 that the two axes of
Die Größe der Werkzeug 11 und 12 ist so gewählt, daß der
Bereich, in dem beide Werkzeuge 11 und 12 gleichzeitig an
beiden Stirnflächen des Werkstücks 17 angreifen, sich im
wesentlichen im Bereich des Mittelpunkts 22 befindet.
Einseitige Belastungen, die evtl. zu Verformungen führen
könnten, werden auf diese Weise vermieden.The size of the
Claims (18)
- A device for microfinishing or superfinishing both sides of disklike workpieces (17) with plane and/or spherical surfaces, having means (18) for receiving the workpiece (17), and havinga first tool (11), rotatably received in a first tool spindle (6), for machining one surface of the workpiece (17), the first tool spindle (6) being rotatably received in a first orbit spindle (1) and the axis (8) of the first tool spindle (6) and the axis (3) of the first orbit spindle (1) being spaced apart by a first distance (10) from one another;a second tool (12), rotatably received in a second tool spindle (7), for machining the other surface of the workpiece (17), the second tool spindle (7) being rotatably received in a second orbit spindle (2) and the axis (9) of the second tool spindle (7) and the axis (4) of the second orbit spindle (2) being spaced apart by a second distance (27) from one another; andin the machining of the workpiece (17), both orbit spindles (1 and 2) and both tool spindles (6 and 7) are set into rotary motion at the same time.
- The device of claim 1, characterized in that the means (18) for receiving the workpiece (17) receive it on its peripheral faces (19).
- The device of one of the foregoing claims, characterized in that the means (18) for receiving the workpiece (17) is a three-point or three-line bearing, a collet chuck, or the like.
- The device of one of the foregoing claims, characterized in that via the means (18) for receiving the workpiece (17), the workpiece is restrained against rotary motions.
- The device of one of the foregoing claims, characterized in that the rotary directions of all the spindles (1 and 2, 6 and 7) are the same.
- The device of one of claims 1-4, characterized in that the rotary directions of the first tool spindle (6) and/or the first orbit spindle (1) are not the same as the rotary directions of the second tool spindle (7) and/or the second orbit spindle (2).
- The device of one of the foregoing claims, characterized in that the first tool (11) and/or the second tool (12) can be put in position in particular hydraulically, pneumatically, or via a numerical control system.
- The device of one of the foregoing claims, characterized in that the axes (8 and 9) of the two tools (11 and 12) are offset from one another by an angle other than 0°, and in particular by 90°.
- The device of one of the foregoing claims, characterized in that the axes (8 and 9) of the tools (11 and 12) orbit around the center point (22) of the workpiece (17).
- The device of claim 9, characterized in that the orbit (25) is circular.
- The device of claims 8 and 9 or claims 8 and 10, characterized in that the angular offset of the two tools (11 and 12) in the orbiting motion of the tools (11 and 12) is constant about the center point (22) of the workpiece (17).
- The device of one of the foregoing claims, characterized in that the axes (8 and 9) of the tool spindles (6 and 7) are coupled mechanically or electronically.
- The device of one of the foregoing claims, characterized in that the axis (8 or 9) of the tool spindle (6 or 7) forms an adjustable angle other than 0° with the axis (3 or 4) of the orbit spindle (1 or 2).
- The device of one of the foregoing claims, characterized in that the axes (3 and 4) of the orbit spindles (1 and 2) form an adjustable angle other than 0° in the horizontal and/or vertical plane.
- The device of one of the foregoing claims, characterized in that the tool (11, 12) is a cup grinding disk (13, 14) or a grinding ring.
- The device of one of the foregoing claims, characterized in that the axis (3 or 4) of the first and/or second orbit spindle (1 or 2) extends through the center point (22) of the workpiece (17).
- The device of one of the foregoing claims, characterized in that the orbit spindles (1 and 2) are coaxial with one another.
- The device of one of the foregoing claims, characterized in that the rotational speed of at least one of the spindles (1, 2, 6 or 7) is variable.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19513383 | 1995-04-08 | ||
| DE19513383A DE19513383C2 (en) | 1995-04-08 | 1995-04-08 | Device for double-sided fine machining or superfinishing of disk-shaped workpieces |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0737545A2 EP0737545A2 (en) | 1996-10-16 |
| EP0737545A3 EP0737545A3 (en) | 1997-08-13 |
| EP0737545B1 true EP0737545B1 (en) | 2000-06-14 |
Family
ID=7759260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP96103740A Expired - Lifetime EP0737545B1 (en) | 1995-04-08 | 1996-03-09 | Apparatus for superfinishing both sides of a workpiece |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5720652A (en) |
| EP (1) | EP0737545B1 (en) |
| DE (2) | DE19513383C2 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| MY121670A (en) * | 1996-09-09 | 2006-02-28 | Koyo Machine Ind Co Ltd | Double side grinding apparatus for flat disklike work |
| US5928062A (en) * | 1997-04-30 | 1999-07-27 | International Business Machines Corporation | Vertical polishing device and method |
| US6726525B1 (en) * | 1999-09-24 | 2004-04-27 | Shin-Estu Handotai Co., Ltd. | Method and device for grinding double sides of thin disk work |
| DE10361767B4 (en) * | 2003-12-31 | 2005-12-22 | Thielenhaus Technologies Gmbh | Method and device for the mechanical processing of parallel end faces on small-sized workpieces |
| US8070933B2 (en) * | 2005-05-06 | 2011-12-06 | Thielenhaus Microfinishing Corp. | Electrolytic microfinishing of metallic workpieces |
| US7785173B2 (en) * | 2005-07-05 | 2010-08-31 | Supfina Machine Co. | Superfinishing machine and method |
| JP5406126B2 (en) * | 2010-06-09 | 2014-02-05 | 株式会社岡本工作機械製作所 | Compound chamfering processing apparatus and processing method for ingot block |
| DE102010026663A1 (en) * | 2010-07-09 | 2012-01-12 | Emag Holding Gmbh | Grinding machine for grinding cams |
| US9017141B2 (en) * | 2013-01-04 | 2015-04-28 | White Drive Products, Inc. | Deburring machine and method for deburring |
| DE102021132468B3 (en) | 2021-12-09 | 2023-02-23 | Erwin Junker Maschinenfabrik Gmbh | METHOD AND DEVICE FOR GRINDING THE FACE SIDES OF A ROTATIONALLY-SYMMETRIC WORKPIECE HAVING COATINGS WITH DIFFICULT TO MACHIN |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1606813A (en) * | 1925-05-27 | 1926-11-16 | Schultz Richard | Cutlery sharpener |
| US2168596A (en) * | 1935-09-12 | 1939-08-08 | Gardner Machine Co | Control apparatus for grinding machines |
| US2417737A (en) * | 1945-06-19 | 1947-03-18 | Culp Lide Crocker | Grinder for gate valve inserts |
| GB1447365A (en) * | 1972-11-29 | 1976-08-25 | Ward M M | Grinding machines |
| US4478008A (en) * | 1981-11-19 | 1984-10-23 | Litton Industrial Products, Inc. | Thermally stabilized double disc grinding machine |
| US4524547A (en) * | 1983-09-06 | 1985-06-25 | Litton Industrial Products, Inc. | Automatic double disc grinder control cycle |
| US4845900A (en) * | 1986-12-25 | 1989-07-11 | Kabushiki Kaisha Taihei Seisakusho | Method and apparatus for grinding straight-edged cutting tools to a fine finish |
| DE3928113C1 (en) * | 1989-08-25 | 1991-01-31 | Maschinenfabrik Ernst Thielenhaus Gmbh, 5600 Wuppertal, De | Precision grinding machine tool holder - has top part swinging on horizontal axis while workpiece holder rotates on vertical axis |
| US5042203A (en) * | 1989-10-30 | 1991-08-27 | Nippei Toyama Corp. | Abrasive disc exchange apparatus for use in vertical-spindle grinding machine |
| US5056266A (en) * | 1990-01-04 | 1991-10-15 | Norris Bobby D | Rotary brake rotor resurfacer |
| US5274960A (en) * | 1990-10-23 | 1994-01-04 | Speedfam Corporation | Uniform velocity double sided finishing machine |
| DE4206753A1 (en) * | 1992-03-04 | 1993-09-09 | Bosch Gmbh Robert | Eccentric disc grinder |
| US5381630A (en) * | 1992-09-28 | 1995-01-17 | Kinner; James | Brake rotor grinding method and apparatus |
| DE4233727A1 (en) * | 1992-10-07 | 1994-04-14 | Bosch Gmbh Robert | Eccentric disc grinder |
| DE4328987C1 (en) * | 1993-08-28 | 1995-02-16 | Thielenhaus Ernst Kg | Use of a grinding device for fine grinding motor vehicle brakes |
| DE4328985C2 (en) * | 1993-08-28 | 1995-12-07 | Thielenhaus Ernst Kg | Machine for fine grinding of pre-machined, ring-shaped metal workpieces |
| US5353553A (en) * | 1994-01-10 | 1994-10-11 | Miller Industrial Products | Method and apparatus for treating brake rotors |
-
1995
- 1995-04-08 DE DE19513383A patent/DE19513383C2/en not_active Expired - Fee Related
-
1996
- 1996-03-09 EP EP96103740A patent/EP0737545B1/en not_active Expired - Lifetime
- 1996-03-09 DE DE59605427T patent/DE59605427D1/en not_active Expired - Fee Related
- 1996-04-08 US US08/629,037 patent/US5720652A/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE19513383C2 (en) | 1997-11-20 |
| US5720652A (en) | 1998-02-24 |
| DE59605427D1 (en) | 2000-07-20 |
| DE19513383A1 (en) | 1996-10-10 |
| EP0737545A3 (en) | 1997-08-13 |
| EP0737545A2 (en) | 1996-10-16 |
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