EP0737545A2 - Apparatus for superfinishing both sides of a workpiece - Google Patents
Apparatus for superfinishing both sides of a workpiece Download PDFInfo
- Publication number
- EP0737545A2 EP0737545A2 EP96103740A EP96103740A EP0737545A2 EP 0737545 A2 EP0737545 A2 EP 0737545A2 EP 96103740 A EP96103740 A EP 96103740A EP 96103740 A EP96103740 A EP 96103740A EP 0737545 A2 EP0737545 A2 EP 0737545A2
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- EP
- European Patent Office
- Prior art keywords
- workpiece
- spindle
- tool
- orbital
- spindles
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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 double-sided fine machining or superfinishing of disk-shaped workpieces or workpiece surfaces with a planar and / or spherical surface.
- the invention has for its object to develop a device of the type mentioned so that disk-shaped workpieces can be optimally processed on both sides at the same time.
- the device for double-sided fine machining or superfinishing of disk-shaped workpieces with flat and / or spherical surfaces has means for receiving the workpiece and is also provided with a first tool rotatably received in a first tool spindle for machining one Surface of the workpiece, wherein the first tool spindle is rotatably received in a first orbital spindle and the axis of the first tool spindle and the axis of the first orbital spindle are at a first distance from one another, with a second tool rotatably received in a second tool spindle for machining the other surface of the Workpiece, wherein the second tool spindle is rotatably received in a second orbital spindle and the axis of the second tool spindle and the axis of the second orbital spindle are at a second distance from one another, and during processing d both orbital spindles and both tool spindles are rotated in the workpiece.
- disk-shaped workpiece surface e.g. End faces of bores understood in a housing, e.g. Pump housing are provided.
- a housing e.g. Pump housing
- disk-shaped workpieces can be processed in a simple and quick manner.
- the device according to the invention leads to minimal deformations of the workpiece, which is reflected in very narrow machining tolerances.
- Various micrographs can be produced with the device according to the invention, in particular a cross-cut can be produced.
- the means for receiving the workpiece receive the workpiece on its edge surfaces.
- the means for receiving the workpiece preferably form a three-point or three-line bearing.
- a collet is used to hold the workpiece.
- the holding means grips the workpiece on its edge surface, so that the end faces to be machined are freely accessible.
- the workpiece is held against rotational movements, radial misalignment and the like via the holding means. captured.
- the equipment of the device according to the invention and the Workpieces can be removed fully automatically, for example using a turret holder or a linearly movable holder.
- the directions of rotation of all spindles are the same. This has the advantage that devices for reversing the direction of rotation can be dispensed with within the spindle drives.
- the directions of rotation of the first tool spindle and / or the first orbit spindle is not the same as the directions of rotation of the second tool spindle and / or the second orbit spindle. This configuration enables a large number of different superfinishing processes to be carried out.
- first tool and / or the second tool can be adjusted from both sides of the workpiece, in particular hydraulically, pneumatically or via an NC control, enables fully automatic operation.
- control drive can be easily integrated into conventional machines.
- Optimal work results are achieved in that the axes of the two tools are offset from one another by an angle different from 0 °, in particular by 90 °. On in this way, only one tool acts on sections of the workpiece and both tools act on other sections of the workpiece simultaneously. In addition, none of the tools acts on other sections of the workpiece, so that these sections can be cleaned and / or cooled.
- the axes of the tools advantageously run around the center of the workpiece, in particular in a circular manner.
- the angular offset of the two tools is preferably constant during the rotational movement of the tools around the center of the workpiece. In this way, optimal machining conditions, in which high cutting performance, tight tolerances, optimal surface quality, etc. are achieved, are maintained.
- the axes of the tool spindles are coupled mechanically or electronically. With electronic coupling there is also the possibility that the process can be intervened in a targeted manner, e.g. initiated by in-process measuring devices.
- the axes of the orbital spindles can be coupled to one another mechanically or electronically.
- the axis of the tool spindle has an adjustable angle other than 0 ° to the axis of the orbital spindle.
- the workpiece can be provided with plane-parallel end faces, or one or two convex or concave curved end faces can be machined on the workpiece.
- the axes of the orbital spindle can have an angle to one another which is adjustable in the horizontal and / or vertical plane and is different from 0 °.
- the tool is preferably a cup grinding wheel or a slip ring. This has the advantage that the surface of the tool that engages the workpiece is at a substantially constant distance from the axis of rotation of the tool spindle compared to a grinding wheel that is in full contact with the workpiece.
- the axis of the first and / or second orbit spindle preferably runs through the center of the workpiece.
- the orbital spindles are coaxial with one another and are at a distance from the center of the workpiece. This configuration enables further variations in the finishing process.
- An additional Variation is achieved in that the rotational speed of at least one of the spindles is variable.
- orbit spindles 1 and 2 of a superfinishing machine (not shown in more detail). These orbital spindles 1 and 2 have axes 3 and 4 about which they can be rotated. The drive of the orbit spindles 1 and 2 is not shown and is located within the housing 5.
- Tool spindles 6 and 7 are attached to the orbital spindles 1 and 2, the axes of rotation 8 and 9 of which are each at a distance 10 and 27 from the axes 3 and 4 of the orbital spindles 1 and 2.
- Tools 11 and 12 are fastened to the tool spindles 6 and 7 coaxially to the axes 8 and 9.
- the spindles 1 and 2 as well as 6 and 7 as well as the tools 11 and 12 rotate in the direction of the arcuate arrows drawn around the axes 3 and 4 and 8 and 9.
- the tools 11 and 12 are designed as cup grinding wheels 13 and 14.
- a disk-shaped workpiece 17 which is held in place by a workpiece holder, which is only indicated by three arrows 18, on its peripheral edge 19.
- This workpiece 17 has parallel end faces that are machined by the two tools 11 and 12 in a plane-parallel manner.
- the workpiece 17 can also be provided with one or with two concave or convex curved end faces, which are machined using the two tools 11 and 12.
- the two axes 3 and 4 of the orbital spindles 1 and 2 are angularly adjustable in the horizontal plane and in the vertical plane in the direction of the arrows 20 and 21 or in their opposite direction.
- the axis 8 of the first tool spindle 6 is the axis 3 of the first orbital spindle 1 and accordingly the axis 9 of the second tool spindle 7 is the axis 4 of the second Orbital spindle adjustable in angle.
- Axes 3 and 8 or 4 and 9 can intersect or skew to each other.
- FIG. 2 shows the two tools 11 and 12 and the workpiece 17.
- the center of the workpiece 17 is designated 22.
- the axes 3 and 4 of the two orbit spindles 1 and 2 also run through this center 22.
- the two center points of the workpieces 11 and 12 are designated by 23 and 24, the axes of rotation 8 and 9 of the tool spindles 6 and 7 being designated by these center points 23 and 24 to run.
- the axes of rotation 8 and 9 of the tool spindles 6 and 7 and of the tools 11 and 12 move on an orbit 25 or on a circular orbit which has a diameter 26.
- the diameter 26 corresponds approximately to twice the distance 10 or 27 of the axes 3 and 8 of the spindles 1 and 6 or the axes 4 and 9 of the spindles 2 and 7.
- the size of the tools 11 and 12 is selected so that the area in which both tools 11 and 12 act simultaneously on both end faces of the workpiece 17 is essentially in the area of the center point 22.
- One-sided loads, which could possibly lead to deformations, are 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)
Abstract
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 double-sided fine machining or superfinishing of disk-shaped workpieces or workpiece surfaces with a planar 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.Devices of this type are known, for example, from EP 640 436 A1 or EP 640 437 A1. These two documents relate to a device and a method for fine grinding a brake disk ring of a brake disk, the tool being adjustable relative to the surface to be machined via an articulated receptacle.
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 to develop a device of the type mentioned so that disk-shaped workpieces can be optimally processed on both sides 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 in Drehbewegung versetzt werden.This object is achieved in that the device for double-sided fine machining or superfinishing of disk-shaped workpieces with flat and / or spherical surfaces has means for receiving the workpiece and is also provided with a first tool rotatably received in a first tool spindle for machining one Surface of the workpiece, wherein the first tool spindle is rotatably received in a first orbital spindle and the axis of the first tool spindle and the axis of the first orbital spindle are at a first distance from one another, with a second tool rotatably received in a second tool spindle for machining the other surface of the Workpiece, wherein the second tool spindle is rotatably received in a second orbital spindle and the axis of the second tool spindle and the axis of the second orbital spindle are at a second distance from one another, and during processing d both orbital spindles and both tool spindles are rotated in the workpiece.
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. In the following, reference is always made to disk-shaped workpieces, although 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, disk-shaped workpieces can be processed in a simple and quick manner. In addition, the device according to the invention leads to minimal deformations of the workpiece, which is reflected in very narrow machining tolerances. Various micrographs can be produced with the device according to the invention, in particular a cross-cut can be produced.
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 development it is provided that the means for receiving the workpiece receive the workpiece on its edge surfaces. The means for receiving the workpiece preferably form a three-point or three-line bearing. Another embodiment provides that a collet is used to hold the workpiece. The holding means grips the workpiece on its edge surface, so that the end faces to be machined are freely accessible. In addition, the workpiece is held against rotational movements, radial misalignment and the like via the holding means. captured. The equipment of the device according to the invention and the Workpieces can be removed fully automatically, for example using a turret holder or a linearly movable holder.
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, the directions of rotation of all spindles are the same. This has the advantage that devices for reversing the direction of rotation can be dispensed with within the spindle drives.
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 directions of rotation of the first tool spindle and / or the first orbit spindle is not the same as the directions of rotation of the second tool spindle and / or the second orbit spindle. This configuration enables a large number of different superfinishing processes to be carried out.
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.The fact that the first tool and / or the second tool can be adjusted from both sides of the workpiece, in particular hydraulically, pneumatically or via an NC control, enables fully automatic operation. In addition, the control drive can be easily integrated into conventional machines.
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 are offset from one another by an angle different from 0 °, in particular by 90 °. On in this way, only one tool acts on sections of the workpiece and both tools act on other sections of the workpiece simultaneously. In addition, none of the tools acts on other sections of the workpiece, so that these sections can be cleaned and / or 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 in a circular manner. The angular offset of the two tools is preferably constant during the rotational movement of the tools around the center of the workpiece. In this way, optimal machining conditions, in which high cutting performance, tight tolerances, optimal surface quality, etc. are achieved, 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 are coupled mechanically or electronically. With electronic coupling there is also the possibility that the process can be intervened in a targeted manner, e.g. initiated by in-process measuring devices. In addition, the axes of the orbital spindles can be coupled to one another mechanically or electronically.
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.To adjust the cross section and the flatness or spherical geometry, which can be concave or convex, the axis of the tool spindle has an adjustable angle other than 0 ° to the axis of the orbital spindle. In this way, plane-parallel surfaces can be machined, the workpiece can be provided with plane-parallel end faces, or one or two convex or concave curved end faces can be machined on the workpiece.
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 the plan or angular adjustment of the workpiece surfaces, the axes of the orbital spindle can have an angle to one another which is adjustable in the horizontal and / or vertical plane and is different from 0 °.
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 surface of the tool that engages the workpiece is at a substantially constant distance from the axis of rotation of the tool spindle compared to a grinding wheel that is in full contact with the workpiece.
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 axis of the first and / or second orbit spindle preferably runs through the center of the workpiece. In another embodiment, the orbital spindles are coaxial with one another and are at a distance from the center of the workpiece. This configuration enables further variations in the finishing process. An additional Variation is achieved in that the rotational speed of at least one of the spindles is variable.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung, in der unter Bezugnahme auf die Zeichnung die erfindungsgemäße Vorrichtung im einzelnen dargestellt ist. Dabei können die in der Zeichnung dargestellten und in den Ansprüchen und in der Beschreibung erwähnten Merkmale jeweils einzeln für sich oder in beliebiger Kombination erfindungswesentlich sein. 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 5.1 shows 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.Tool spindles 6 and 7 are attached to the
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.Between the ring-
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.In order to ensure 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 the
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.FIG. 2 shows 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)
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 true EP0737545A2 (en) | 1996-10-16 |
| EP0737545A3 EP0737545A3 (en) | 1997-08-13 |
| EP0737545B1 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 |
|---|---|---|---|---|
| US5989108A (en) * | 1996-09-09 | 1999-11-23 | Koyo Machine Industries 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 |
| WO2001021356A1 (en) * | 1999-09-24 | 2001-03-29 | Shin-Etsu 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 |
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| 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 |
| DE4130653A1 (en) * | 1990-10-23 | 1992-04-30 | Speedfam Corp | MACHINING MACHINE FOR TWO-SIDED MACHINING OF WORKPIECES |
| US5381630A (en) * | 1992-09-28 | 1995-01-17 | Kinner; James | Brake rotor grinding method and apparatus |
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| 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 |
| 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 |
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| DE4233727A1 (en) * | 1992-10-07 | 1994-04-14 | Bosch Gmbh Robert | Eccentric disc grinder |
| DE4328985C2 (en) * | 1993-08-28 | 1995-12-07 | Thielenhaus Ernst Kg | Machine for fine grinding of pre-machined, ring-shaped metal workpieces |
| DE4328987C1 (en) * | 1993-08-28 | 1995-02-16 | Thielenhaus Ernst Kg | Use of a grinding device for fine grinding motor vehicle brakes |
| US5353553A (en) * | 1994-01-10 | 1994-10-11 | Miller Industrial Products | Method and apparatus for treating brake rotors |
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1995
- 1995-04-08 DE DE19513383A patent/DE19513383C2/en not_active Expired - Fee Related
-
1996
- 1996-03-09 DE DE59605427T patent/DE59605427D1/en not_active Expired - Fee Related
- 1996-03-09 EP EP96103740A patent/EP0737545B1/en not_active Expired - Lifetime
- 1996-04-08 US US08/629,037 patent/US5720652A/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| DE4130653A1 (en) * | 1990-10-23 | 1992-04-30 | Speedfam Corp | MACHINING MACHINE FOR TWO-SIDED MACHINING OF WORKPIECES |
| US5381630A (en) * | 1992-09-28 | 1995-01-17 | Kinner; James | Brake rotor grinding method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0737545A3 (en) | 1997-08-13 |
| US5720652A (en) | 1998-02-24 |
| DE19513383C2 (en) | 1997-11-20 |
| EP0737545B1 (en) | 2000-06-14 |
| DE59605427D1 (en) | 2000-07-20 |
| DE19513383A1 (en) | 1996-10-10 |
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